WO2021124508A1 - Vehicle - Google Patents
Vehicle Download PDFInfo
- Publication number
- WO2021124508A1 WO2021124508A1 PCT/JP2019/049796 JP2019049796W WO2021124508A1 WO 2021124508 A1 WO2021124508 A1 WO 2021124508A1 JP 2019049796 W JP2019049796 W JP 2019049796W WO 2021124508 A1 WO2021124508 A1 WO 2021124508A1
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- WO
- WIPO (PCT)
- Prior art keywords
- front wheel
- vehicle
- link mechanism
- operation handle
- swing
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
- B62D61/10—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with more than four wheels
Definitions
- the present invention relates to a vehicle.
- a vehicle having a vehicle body body, left rear wheels and right rear wheels supported by the vehicle body body, and left front wheels and right front wheels supported by the vehicle body body is known.
- Patent Document 1 discloses a baby carriage provided with a main body frame having front legs and rear legs, and wheels provided on the front legs and the rear legs, respectively.
- a handle is connected to the main body frame.
- a vehicle such as the baby carriage mentioned above
- it can be used in various driving scenes such as when overcoming a step.
- the wheel that first comes into contact with the step receives a force in a direction different from the traveling direction (for example, a direction opposite to the traveling direction).
- the burden on the operator of the vehicle may increase. Therefore, the environment in which the vehicle can be used may be limited.
- An object of the present invention is to provide a vehicle whose available environment can be expanded.
- the present inventors examined a configuration capable of expanding the environment in which the vehicle can be used. As a result of diligent studies, the present inventors have come up with the following configuration.
- a vehicle is a vehicle including a vehicle body, left rear wheels and right rear wheels supported by the vehicle body, and left front wheels and right front wheels supported by the vehicle body. is there.
- This vehicle is a member extending in the left-right direction, and a first swing in which a central portion in the left-right direction is swingably supported by the vehicle body body around a first central swing axis extending in the front-rear direction of the vehicle body body.
- a moving lever and a member extending in the left-right direction, the central portion in the left-right direction is below the first swing lever, and around the second central swing axis extending in the front-rear direction of the vehicle body to the vehicle body.
- a second swing lever that is swingably supported and a member that extends in the vertical direction.
- the left front wheel is swingably supported and is swingably supported at the left end of the second swing lever around the second left swing axis extending in the front-rear direction of the vehicle body body to support the left front wheel.
- It is a wheel support and a member extending in the vertical direction, and is supported by the right end of the first swing lever so as to be swingable around the first right swing axis extending in the front-rear direction of the vehicle body body.
- the right end of the second swing lever includes a right front wheel support that is swingably supported around a second right swing axis extending in the front-rear direction of the vehicle body body and supports the right front wheel, and includes the left front.
- a front wheel displacement link mechanism that supports the wheel or the right front wheel in a state of being displaceable in the vertical direction with respect to the vehicle body body, and a front wheel displacement link mechanism that can be manually operated by the operator of the vehicle and is operated by the operator. It has an operation handle connected to the front wheel displacement link mechanism so as to swing the first swing lever and the second swing lever, and the first swing is caused by the operation of the operation handle by the operator.
- the front wheel adjusting mechanism for adjusting the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel by swinging the lever and the second swing lever is provided.
- the left front wheel and the right front wheel are supported by the front wheel displacement link mechanism in a state where they can be displaced in the vertical direction with respect to the vehicle body body.
- the left front wheel and the right front wheel are caused by the driver of the vehicle manually operating the operation handle of the front wheel adjustment mechanism to swing the first swing lever and the second swing lever of the front wheel displacement link mechanism.
- the load applied to the wheel or the positions of the left front wheel and the right front wheel can be adjusted.
- the operator of the vehicle manually operates the operation handle of the front wheel adjustment mechanism to cause the front wheel displacement link.
- the first swing lever and the second swing lever of the mechanism can be swung to lift the wheel in contact with the step.
- the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted. Therefore, when the vehicle gets over the step, for example, it can easily get over the step.
- the environment in which the vehicle can be used can be expanded.
- the vehicle of the present invention preferably includes the following configurations.
- the operation handle includes a first operation handle and a second operation handle.
- the first operation handle is connected to the left portion of the first swing lever and the left portion of the second swing lever.
- the second operation handle is connected to the right portion of the first swing lever and the right portion of the second swing lever.
- the front wheel adjustment mechanism causes the first swing lever and the second swing lever to swing by the operation of at least one of the first operation handle and the second operation handle by the operator, thereby causing the left front.
- the load applied to the wheels and the right front wheel or the positions of the left front wheel and the right front wheel are adjusted.
- the driver of the vehicle operates at least one of the first operation handle and the second operation lever to swing the first swing lever and the second swing lever of the front wheel displacement link mechanism to swing the left front wheel.
- the load applied to the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
- the operator of the vehicle can easily adjust the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel according to the environment in which the vehicle is used. can do.
- the vehicle of the present invention preferably includes the following configurations.
- the first operating handle is connected to the upper part of the left front wheel support.
- the second operating handle is connected to the upper part of the right front wheel support.
- the driver of the vehicle operates at least one of the first operation handle and the second operation lever to swing the first swing lever and the second swing lever of the front wheel displacement link mechanism to swing the left front wheel.
- the load applied to the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
- the vehicle of the present invention preferably includes the following configurations.
- the front wheel adjustment mechanism is configured to move the left front wheel and the right front wheel in the vertical direction and the front-rear direction by the operation of the operation handle by the operator.
- the operator of the vehicle can adjust the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel by operating at least one of the first operation handle and the second operation lever.
- the vehicle of the present invention preferably includes the following configurations.
- the operation handle is provided so as to be linearly displaced with respect to the vehicle body body.
- the front wheel adjustment mechanism causes the left front wheel and the right front wheel to swing by swinging the first swing lever and the second swing lever by an operation of linearly displace the operation handle by the operator. The applied load or the positions of the left front wheel and the right front wheel are adjusted.
- the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
- the vehicle of the present invention preferably includes the following configurations.
- the operation handle is provided so as to swing with respect to the vehicle body body.
- the front wheel adjustment mechanism is applied to the left front wheel and the right front wheel by swinging the first swing lever and the second swing lever by the operation of swinging the operation handle by the operator. Adjust the load or the position of the left front wheel and the right front wheel.
- the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
- the vehicle of the present invention preferably includes the following configurations.
- the front wheel adjusting mechanism includes a clutch mechanism between the operating handle and the front wheel displacement link mechanism that switches the operating handle and the front wheel displacement link mechanism into a connected state or a disconnected state.
- the operation handle and the front wheel displacement link mechanism can be switched between the connected state and the disconnected state by the clutch mechanism according to the environment in which the vehicle is used. Therefore, it is possible to switch whether or not the front wheel displacement link mechanism is operated by the operation of the operation handle of the operator according to the environment in which the vehicle is used. That is, it is possible to switch whether or not the load applied to the left front wheel and the right front wheel is adjusted or whether or not the positions of the left front wheel and the right front wheel are adjusted according to the environment in which the vehicle is used.
- the front wheel means a wheel located at the front portion of the vehicle in the traveling direction of the vehicle among a plurality of wheels possessed by the vehicle.
- the front and rear of the vehicle are determined by the traveling direction of the vehicle.
- the front wheel is determined by the traveling direction of the vehicle from among the plurality of wheels of the vehicle. Therefore, for example, when the traveling mode of the vehicle can be switched between the first traveling mode capable of traveling in one direction and the second traveling mode capable of traveling in the direction opposite to the one direction, the first traveling mode is described.
- the front portion and the rear portion of the vehicle are interchanged between the traveling mode and the second traveling mode.
- the front wheel displacement link mechanism that supports the front wheels at the front portion of the vehicle in the first traveling mode of the vehicle supports the rear wheels at the rear portion of the vehicle in the second traveling mode of the vehicle.
- the front wheel displacement link mechanism that supports the rear wheels at the rear portion of the vehicle in the first traveling mode of the vehicle supports the front wheels at the front portion of the vehicle in the second traveling mode of the vehicle.
- the step means a portion where the height in the vertical direction changes stepwise on the road surface on which the vehicle travels.
- the step is not only a portion that is stepwise higher than the other portion of the road surface, such as a curb, but also a portion that is stepwise higher than the other portion of the road surface, such as a depression. Including the stepped low part.
- FIG. 1 is a left side view schematically showing the overall configuration of the vehicle according to the first embodiment.
- FIG. 2 is a front view schematically showing the configuration of the front part of the vehicle when the vehicle is viewed from the front.
- FIG. 3 is a diagram corresponding to FIG. 2 schematically showing the operation of the link mechanism when the left front wheel of the vehicle is located above the right front wheel.
- FIG. 4 is a diagram corresponding to FIG. 2 schematically showing the operation of the link mechanism when the right front wheel of the vehicle is located above the left front wheel.
- FIG. 5 is a diagram schematically showing how the front wheels are moved by the front wheel adjustment mechanism and the link mechanism when the front wheels come into contact with the step.
- FIG. 6 is a perspective view showing the overall configuration of the vehicle according to the second embodiment.
- FIG. 7 is a view corresponding to FIG. 5 of the vehicle according to the second embodiment.
- FIG. 8 is a perspective view showing the overall configuration of the vehicle according to the third embodiment.
- FIG. 9 is a view corresponding to FIG. 2 of the vehicle according to the other embodiment.
- FIG. 10 is a view corresponding to FIG. 2 of a vehicle according to another embodiment.
- FIG. 11 is a side-by-side view of the front view and the left side view of the vehicle according to the first embodiment.
- the arrow F in the figure indicates the front direction of the vehicle.
- the arrow B in the figure indicates the rear direction of the vehicle.
- the arrow U in the figure indicates the upward direction of the vehicle.
- the arrow D in the figure indicates the downward direction of the vehicle.
- the arrow R in the figure indicates the right direction of the vehicle.
- the arrow L in the figure indicates the left direction of the vehicle.
- the traveling direction of the vehicle is the forward direction. Therefore, the front-rear direction, the left-right direction, and the up-down direction of the vehicle mean the front-rear, left-right, and up-down directions when the driver of the vehicle faces the front direction of the vehicle, respectively.
- FIG. 1 is a diagram schematically showing the configuration of the vehicle 1 according to the first embodiment.
- FIG. 2 is a diagram schematically showing the configuration of the front part of the vehicle when the vehicle 1 is viewed from the front.
- the vehicle 1 includes a vehicle body body 2, a pair of left and right front wheels 3, a pair of left and right rear wheels 4, a link mechanism 5 (front wheel displacement link mechanism), and a front wheel adjustment mechanism 6.
- the vehicle 1 is a four-wheeled vehicle.
- the pair of left and right front wheels 3 are rotatably supported by the vehicle body body 2 in the front-rear direction via a link mechanism 5.
- the pair of left and right rear wheels 4 are rotatably supported by the vehicle body body 2 in the front-rear direction.
- the front wheel adjustment mechanism 6 includes a pair of operating handles 60.
- the pair of operation handles 60 are connected to the vehicle body body 2. Details of each configuration of the vehicle 1 will be described later.
- the vehicle 1 moves forward when the operator applies a force forward to the vehicle body 2 via the pair of operation handles 60.
- the vehicle 1 moves backward when the operator applies a force backward to the vehicle body 2 via the pair of operation handles 60.
- the vehicle 1 turns to the left when the operator applies a force to turn to the left with respect to the vehicle body body 2 via the pair of operation handles 60.
- the vehicle 1 turns to the right when the operator applies a force to turn to the right to the vehicle body 2 via the pair of operation handles 60.
- the vehicle 1 does not have a drive source. Further, the vehicle 1 does not have a steering mechanism for steering at least one of a pair of left and right front wheels 3 and a pair of left and right rear wheels 4 by a pair of operation handles 60.
- the pair of left and right front wheels 3 includes a left front wheel 31 and a right front wheel 32.
- the left front wheel 31 is rotatably supported at the lower end of the left side member 53 of the link mechanism 5, which will be described later, about the left front wheel rotation axis P31 extending parallel to the road surface.
- the right front wheel 32 is rotatably supported at the lower end of the right side member 54 of the link mechanism 5, which will be described later, about the right front wheel rotation axis P32 extending parallel to the road surface.
- the left front wheel 31 and the right front wheel 32 are located side by side in the left-right direction.
- parallel to the road surface is not limited to a state in which the left front wheel rotation axis P31 is completely parallel to the road surface, and the left front wheel rotation axis is not limited to the extent that it does not affect the left-right tilted posture of the vehicle body 2. It also includes a state in which P31 is tilted with respect to the road surface. The same applies to the following description of each rotation axis.
- the pair of left and right rear wheels 4 includes a left rear wheel 41 and a right rear wheel 42.
- the left rear wheel 41 is rotatably supported at the rear portion of the vehicle body 2 about the left rear wheel rotation axis P41 extending parallel to the road surface.
- the right rear wheel 42 is rotatably supported at the rear portion of the vehicle body 2 about the right rear wheel rotation axis P42 extending parallel to the road surface.
- the left rear wheel 41 and the right rear wheel 42 are located side by side in the left-right direction.
- the vehicle body body 2 has a vehicle body frame 21 that supports a pair of left and right rear wheels 4, and a link mechanism support portion 22 that supports the link mechanism 5.
- the vehicle body frame 21 supports the link mechanism support portion 22 and the pair of left and right rear wheels 4.
- the body frame 21 is composed of, for example, a pipe-shaped member.
- the vehicle body frame 21 may be composed of panel-shaped members.
- the link mechanism support portion 22 is located in front of the vehicle body frame 21. As shown in FIG. 2, the link mechanism support portion 22 is a member extending in the vertical direction. In the present embodiment, the link mechanism support portion 22 is composed of, for example, a pipe-shaped member. The link mechanism support portion 22 may be formed of a plate-shaped member.
- the link mechanism support portion 22 is connected to the front end portion of the vehicle body frame 21. As a result, the link mechanism support portion 22 is supported by the front end portion of the vehicle body frame 21.
- the link mechanism support portion 22 may be connected to the vehicle body frame 21 at any position.
- the link mechanism support portion 22 supports the upper cross member 51 of the link mechanism 5 so as to be swingable around the first central swing axis UI, and the lower cross member 52 is supported by the second center. It is supported so that it can swing around the swing axis DI.
- the pair of operation handles 60 are connected to the link mechanism 5 described later.
- the pair of operation handles 60 extend upward from the link mechanism 5 when the vehicle 1 is viewed from the front.
- the pair of operation handles 60 includes a left operation handle 61 and a right operation handle 62.
- the left operation handle 61 has a left operation handle bar 61a and a left grip portion 61b.
- the left operation handlebar 61a and the left grip portion 61b are integrally configured.
- the left operation handlebar 61a extends from the upper end of the left side member 53 in the link mechanism 5 described later in the same direction (extension direction) as the direction in which the left side member 53 extends so as to be continuous with the left side member 53. That is, the left operation handlebar 61a extends upward from the upper end portion of the left side member 53. The lower end of the left operation handlebar 61a is connected to the upper end of the left side member 53.
- the left operation handlebar may extend from the upper end of the left side member in a direction different from the direction in which the left side member extends. Further, the left operation handlebar and the left side member may be an integral member.
- the left grip portion 61b extends from the upper part of the left operation handlebar 61a in a direction intersecting the extending direction of the left operation handlebar 61a.
- the left grip portion 61b is gripped by the operator's left hand.
- the right operation handle 62 has a right operation handle bar 62a and a right grip portion 62b.
- the right operation handlebar 62a and the right grip portion 62b are integrally configured.
- the right operation handlebar 62a extends from the upper end of the right side member 54 in the link mechanism 5 described later in the same direction (extension direction) as the direction in which the right side member 54 extends so as to be continuous with the right side member 54. That is, the right operation handlebar 62a extends upward from the upper end portion of the right side member 54. The lower end of the right operation handlebar 62a is connected to the upper end of the right side member 54.
- the right operation handlebar may extend from the upper end of the right side member in a direction different from the direction in which the right side member extends. Further, the right operation handlebar and the right side member may be an integral member.
- the right grip portion 62b extends from the upper part of the right operation handlebar 62a in a direction intersecting the extending direction of the right operation handlebar 62a.
- the right grip portion 62b is gripped by the operator's right hand.
- the link mechanism 5 is supported by a link mechanism support portion 22 located at the front portion of the vehicle body body 2 so as to be swingable in the vertical direction when the vehicle 1 is viewed from the front.
- the link mechanism 5 is a parallel four-node link (also called a parallelogram link) type link mechanism.
- the link mechanism 5 is located above the pair of left and right front wheels 3.
- the link mechanism 5 includes an upper cross member 51 (first swing lever), a lower cross member 52 (second swing lever), a left side member 53 (left front wheel support), and a right side member 54 (right front wheel). Support) and included.
- the upper cross member 51 extends in the left-right direction.
- the central portion of the upper cross member 51 in the left-right direction is swingably supported by the link mechanism support portion 22 around the first central swing axis UI.
- the first central swing axis UI extends in the front-rear direction.
- the upper cross member 51 may be located in front of the link mechanism support portion 22 or may be located behind the link mechanism support portion 22.
- the upper cross member 51 may be located both in front of and behind the link mechanism support portion 22.
- the lower cross member 52 extends in the left-right direction.
- the lower cross member 52 is located below the upper cross member 51.
- the central portion of the lower cross member 52 in the left-right direction is swingably supported by the link mechanism support portion 22 around the second central swing axis DI.
- the second central swing axis DI extends in the front-rear direction.
- the lower cross member 52 may be located in front of the link mechanism support portion 22 or may be located behind the link mechanism support portion 22.
- the lower cross member 52 may be located both in front of and behind the link mechanism support portion 22.
- the left side member 53 is located to the left of the link mechanism support portion 22.
- the left side member 53 extends in the direction in which the link mechanism support portion 22 extends. That is, the left side member 53 is parallel to the link mechanism support portion 22. In this embodiment, the left side member 53 extends in the vertical direction.
- parallel includes not only the case where the members are completely parallel to each other but also the state where the members are tilted to the extent that they do not affect the operation of the link mechanism 5.
- the right side member 54 is located to the right of the link mechanism support portion 22.
- the right side member 54 extends in the direction in which the link mechanism support portion 22 extends. That is, the right side member 54 is parallel to the link mechanism support portion 22. In the present embodiment, the right side member 54 extends in the vertical direction.
- the left side member 53, the link mechanism support portion 22, and the right side member 54 are parallel to each other.
- the left operation handlebar 61a connected to the upper end portion of the left side member 53 moves only in the vertical direction. Therefore, the left operation handlebar 61a moves linearly with respect to the vehicle body body 2. That is, the left operation handle 61 is provided so as to be linearly displaced with respect to the vehicle body body 2.
- the right operation handlebar 62a connected to the upper end of the right side member 54 moves only in the vertical direction. Therefore, the right operation handlebar 62a moves linearly with respect to the vehicle body body 2. That is, the right operation handle 62 is provided so as to be linearly displaced with respect to the vehicle body body 2.
- the left end of the upper cross member 51 is swingably connected to the left side member 53 around the first left swing axis UL.
- the first left swing axis UL extends in the front-rear direction.
- the first left swing axis UL is parallel to the first center swing axis UI.
- the left end of the lower cross member 52 is swingably connected to the left side member 53 around the second left swing axis DL.
- the second left swing axis DL extends in the front-rear direction.
- the second left swing axis DL is parallel to the second center swing axis DI.
- the right end of the upper cross member 51 is swingably connected to the right side member 54 around the first right swing axis UR.
- the first right swing axis UR extends in the front-rear direction.
- the first right swing axis UR is parallel to the first center swing axis UI.
- the right end of the lower cross member 52 is swingably connected to the right side member 54 around the second right swing axis DR.
- the second right swing axis DR extends in the front-rear direction.
- the second right swing axis DR is parallel to the second center swing axis DI.
- the first central rocking axis UI, the first left rocking axis UL, the first right rocking axis UR, the second central rocking axis DI, the second left rocking axis DL, and the second right rocking axis DR are mutually exclusive. It extends in parallel.
- the first center swing axis UI, the first left swing axis UL, the first right swing axis UR, the second center swing axis DI, the second left swing axis DL, and the second right swing axis DR are left front. It is located above the wheel 31 and the right front wheel 32.
- the upper cross member 51, the lower cross member 52, the left side member 53, and the right side member 54 maintain a posture in which the upper cross member 51 and the lower cross member 52 are parallel to each other, and the left side member 53 and the right side member 53. It is supported by the vehicle body 2 so that the 54 and the 54 maintain a posture parallel to each other. That is, as described above, the upper cross member 51 and the lower cross member 52 are rotatably supported by the link mechanism support portion 22. Further, the left side member 53 and the right side member 54 move in the vertical direction with respect to the vehicle body body 2.
- the shape of the link mechanism 5 changes as the left front wheel 31 and the right front wheel 32 move in the vertical direction. That is, the shape of the link mechanism 5 changes depending on the operation of the link mechanism 5. As shown in FIG. 2, when the link mechanism 5 is not operating, the link mechanism 5 has a rectangular shape when the vehicle 1 is viewed from the front. On the other hand, as shown in FIGS. 3 and 4, when the link mechanism 5 is operating, the link mechanism 5 has a parallel quadrilateral shape when the vehicle 1 is viewed from the front. That is, the operation of the link mechanism 5 changes the shape of the link mechanism 5 when the vehicle 1 is viewed from the front. Note that FIG. 11 is a diagram showing FIGS. 1 and 3 side by side.
- the modification of the link mechanism 5 is that when the vehicle 1 is viewed from the front, the upper cross member 51 and the lower cross member 52 provide the first central swing axis UI and the second central swing axis DI with respect to the link mechanism support portion 22, respectively. It rotates as a center, and the upper cross member 51, the lower cross member 52, the left side member 53, and the right side member 54 are the first left swing axis UL, the first right swing axis UR, and the second left swing axis, respectively. It is generated by rotating around the DL and the second right swing axis DR.
- the left side member 53 that supports the left front wheel 31 moves upward with respect to the link mechanism support portion 22.
- the upper cross member 51 rotates counterclockwise when the vehicle 1 is viewed from the front with respect to the link mechanism support portion 22 with the first central swing axis UI as the center. Rotate.
- the lower cross member 52 also rotates counterclockwise when the vehicle 1 is viewed from the front with respect to the link mechanism support portion 22 about the second central swing axis DI.
- the right side member 54 that supports the right front wheel 32 moves upward with respect to the link mechanism support portion 22.
- the upper cross member 51 rotates clockwise with respect to the link mechanism support portion 22 with respect to the link mechanism support portion 22 with the first central swing axis UI as the center.
- the lower cross member 52 also rotates clockwise with respect to the link mechanism support portion 22 with the second central swing axis DI as the center when the vehicle 1 is viewed from the front.
- the left front wheel 31 and the right front wheel 32 change their relative positions in the vertical direction without tilting in the left-right direction.
- the left front wheel 31 and the right front wheel 32 are maintained in an upright state with respect to the vehicle body body 2 even when the link mechanism 5 is activated.
- the left rear wheel 41 and the right rear wheel 42 are also maintained in an upright state with respect to the vehicle body body 2 when the link mechanism 5 is operated.
- the left side member 53 of the link mechanism 5 and the left operation handlebar 61a of the front wheel adjustment mechanism 6 are connected. Therefore, when the operator manually lifts the left operation handle 61 upward (in the direction indicated by the white arrow in FIG. 3), the upper cross member 51 and the lower cross member 52 of the link mechanism 5 are lifted with respect to the link mechanism support portion 22. Can be rocked. As a result, the left front wheel 31 can be moved upward via the left side member 53 by operating the left operation handle 61. Therefore, when the left front wheel 31 comes into contact with the step S, for example, by lifting the left operation handle 61 upward as shown in FIG. 5, the force received when the left front wheel 31 comes into contact with the step S can be reduced.
- the right side member 54 of the link mechanism 5 and the right operation handlebar 62a of the front wheel adjustment mechanism 6 are connected. Therefore, when the operator manually lifts the right operation handle 62 upward (in the direction indicated by the white arrow in FIG. 4), the upper cross member 51 and the lower cross member 52 of the link mechanism 5 are lifted with respect to the link mechanism support portion 22. Can be rocked. As a result, the right front wheel 32 can be moved upward via the right side member 54 by operating the right operation handle 62. Therefore, when the right front wheel 32 comes into contact with the step S, for example, by lifting the right operation handle 62 upward, the force received when the right front wheel 32 comes into contact with the step S can be reduced.
- the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operator manually operating the pair of operation handles 60. Can be adjusted by the front wheel adjustment mechanism 6. Therefore, when the left front wheel 31 or the right front wheel 32 comes into contact with the step, the contacted wheel can easily get over the step.
- the left operation handle 61 is provided so as to be linearly displaced with respect to the vehicle body body 2.
- the right operation handle 62 is provided so as to be linearly displaced with respect to the vehicle body body 2.
- the operator of the vehicle 1 manually displaces the left operation handle 61 or the right operation handle 62, so that the upper cross member 51 and the lower cross member 52 of the link mechanism 5 are attached to the vehicle body body 2.
- it can be swung. Therefore, the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operation in which the operator of the vehicle 1 linearly displaces the left operation handle 61 or the right operation handle 62 by hand. Can be adjusted.
- FIG. 6 is a perspective view showing a schematic configuration of the vehicle 101 according to the second embodiment.
- the left side member 153 and the right side member 154 of the link mechanism 105 extend in the vertical direction and the front-rear direction so that the upper portion is located behind the lower portion, respectively.
- Different from 1 the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted, and only the configurations different from those in the first embodiment will be described.
- the vehicle 101 has a vehicle body body 102, a pair of left and right front wheels 3, a pair of left and right rear wheels 4, a link mechanism 105, a front wheel adjustment mechanism 106, and a seat 107.
- the front wheel adjustment mechanism 106 includes a pair of operating handles 160.
- the seat 107 is supported by the vehicle body body 102.
- the seat 107 is, for example, a bucket type seat on which an infant or the like can be seated.
- the vehicle 101 is, for example, a stroller for carrying an infant or the like.
- the seat may have a shape other than the bucket type.
- the vehicle body body 102 has a vehicle body frame 121 that supports a pair of left and right rear wheels 4, and a link mechanism support portion 122 that supports the link mechanism 105.
- the vehicle body frame 121 supports the link mechanism support portion 122 and the pair of left and right rear wheels 4.
- the body frame 121 is composed of, for example, a pipe-shaped member.
- the body frame 121 includes a left main frame 121a, a right main frame 121b, a lower connecting frame 121c, and an upper connecting frame 121e.
- the left main frame 121a is a member that extends in the vertical direction when the vehicle 101 is viewed from the front.
- the left main frame 121a rotatably supports the left rear wheel 41 at the lower end portion about the left rear wheel rotation axis P41.
- the right main frame 121b is a member that extends in the vertical direction when the vehicle 101 is viewed from the front.
- the right main frame 121b rotatably supports the right rear wheel 42 at the lower end portion about the right rear wheel rotation axis P42.
- the lower connecting frame 121c and the upper connecting frame 121e are members extending in the left-right direction, respectively.
- the lower connection frame 121c and the upper connection frame 121e connect the left main frame 121a and the right main frame 121b in the left-right direction, respectively.
- the upper connecting frame 121e is located above the lower connecting frame 121c.
- the lower connecting frame 121c is connected to the lower part of the link mechanism support portion 122 by the reinforcing frame 121d.
- the upper connection frame 121e supports the upper end of the link mechanism support portion 122.
- the link mechanism support portion 122 is located in front of the vehicle body frame 121.
- the link mechanism support portion 122 is a member extending in the vertical direction.
- the link mechanism support portion 122 is composed of, for example, a pipe-shaped member.
- the link mechanism support portion 122 supports the upper cross member 151 of the link mechanism 105 so as to be swingable around the first central swing axis UI, and the lower cross member 152 is supported by the second center. It is supported so that it can swing around the swing axis DI.
- the link mechanism 105 front wheel displacement link mechanism
- the link mechanism 105 includes an upper cross member 151 (first swing lever), a lower cross member 152 (second swing lever), and a left side member 153 (left front wheel support). Includes right side member 154 (right front wheel support). Similar to the first embodiment, the link mechanism 105 is a parallel four-node link (also referred to as a parallelogram link) type link mechanism. The link mechanism 105 is located above the pair of left and right front wheels 3.
- the link mechanism 105 has the same configuration as the link mechanism 5 of the first embodiment except for the arrangement. Therefore, the detailed description of the configuration of the link mechanism 105 will be omitted.
- the link mechanism support portion 122 extends in the vertical and front-rear directions so that the upper portion is located behind the lower portion.
- the left side member 153 and the right side member 154 also extend in the vertical direction and the front-rear direction so that the upper portion is located behind the lower portion, respectively. That is, also in the present embodiment, as in the first embodiment, the left side member 153, the right side member 154, and the link mechanism support portion 122 are parallel to each other.
- the upper cross member 151 extends in the left-right direction.
- the central portion of the upper cross member 151 in the left-right direction is swayably supported around the first central swing axis UI without being provided with an urging member for returning to the neutral position with respect to the link mechanism support portion 122.
- the first central swing axis UI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the lower cross member 152 extends in the left-right direction.
- the central portion of the lower cross member 152 in the left-right direction is supported by the link mechanism support portion 122 so as to be swingable around the second central swing axis DI without being provided with an urging member for returning to the neutral position.
- the second central swing axis DI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the left end of the upper cross member 151 is swingably connected to the left side member 153 around the first left swing axis UL.
- the first left swing axis UL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the first left swing axis UL is parallel to the first center swing axis UI.
- the left end of the lower cross member 152 is swingably connected to the left side member 153 around the second left swing axis DL.
- the second left swing axis DL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the second left swing axis DL is parallel to the second center swing axis DI.
- the right end of the upper cross member 151 is swingably connected to the right side member 154 around the first right swing axis UR.
- the first right swing axis UR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the first right swing axis UR is parallel to the first center swing axis UI.
- the right end of the lower cross member 152 is swingably connected to the right side member 154 around the second right swing axis DR.
- the second right swing axis DR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the second right swing axis DR is parallel to the second center swing axis DI.
- the driving axis DRs extend parallel to each other.
- the first center swing axis UI, the first left swing axis UL, the first right swing axis UR, the second center swing axis DI, the second left swing axis DL, and the second right swing axis DR are left front. It is located above the wheel 31 and the right front wheel 32.
- the upper cross member 151 and the lower cross member 152 maintain a posture parallel to each other and the left side.
- the member 153 and the right side member 154 are supported by the vehicle body body 102 so as to maintain a posture parallel to each other. That is, as described above, the upper cross member 151 and the lower cross member 152 are rotatably supported by the link mechanism support portion 122. Further, the left side member 153 and the right side member 154 move in the vertical direction with respect to the vehicle body body 102 when the vehicle 101 is viewed from the front.
- the shape and operation of the link mechanism 105 is the same as the shape and operation of the link mechanism 5 of the first embodiment. Therefore, detailed description of the shape and operation of the link mechanism 105 will be omitted.
- the left front wheel 31 is rotatably supported by the left front wheel support portion 155 connected to the lower end portion of the left side member 153 of the link mechanism 105 about the left front wheel rotation axis P31 extending parallel to the road surface.
- the right front wheel 32 is rotatably supported by the right front wheel support portion 156 connected to the lower end portion of the right side member 154 of the link mechanism 105 about the right front wheel rotation axis P32 extending parallel to the road surface.
- the left front wheel support portion 155 is rotatably supported by the left side member 153 about the left rotation axis WL extending in the vertical direction. As a result, the left front wheel 31 can rotate about the left rotation axis WL. That is, the left front wheel 31 is a caster type wheel.
- the rotation angle range of the left front wheel 31 may be 360 degrees or smaller than 360 degrees.
- the right front wheel support portion 156 is rotatably supported by the right side member 154 around the right rotation axis WR extending in the vertical direction. As a result, the right front wheel 32 can rotate about the right rotation axis WR. That is, the right front wheel 32 is a caster type wheel.
- the rotation angle range of the right front wheel 32 may be 360 degrees or smaller than 360 degrees.
- the left front wheel support portion 155 and the right front wheel support portion 156 may be connected to each other. That is, the left front wheel support portion 155 and the right front wheel support portion 156 may rotate integrally.
- the pair of operation handles 160 includes a left operation handle 161 (first operation handle) and a right operation handle 162 (second operation handle).
- the left operation handle 161 has a left operation handle bar 161a and a left grip portion 161b.
- the left operation handlebar 161a and the left grip portion 161b are integrally configured.
- the left operation handlebar 161a extends from the upper end of the left side member 153 in the link mechanism 105 in the same direction (extension direction) as the left side member 153 extends so as to be continuous with the left side member 153. That is, the left operation handlebar 161a extends in the front-rear direction and the up-down direction so as to be located upward from the upper end portion of the left side member 153 toward the rear.
- the lower end of the left operation handlebar 161a is connected to the upper end of the left side member 153.
- the left operation handlebar may extend from the upper end of the left side member in a direction different from the direction in which the left side member extends. Further, the left operation handlebar and the left side member may be an integral member.
- the left grip portion 161b extends from the upper part of the left operation handlebar 161a in a direction intersecting the extending direction of the left operation handlebar 161a.
- the left grip portion 161b is gripped by the operator's left hand.
- the right operation handle 162 has a right operation handle bar 162a and a right grip portion 162b.
- the right operation handlebar 162a and the right grip portion 162b are integrally configured.
- the right operation handlebar 162a extends from the upper end of the right side member 154 in the link mechanism 105 in the same direction (extension direction) as the direction in which the right side member 154 extends so as to be continuous with the right side member 154. That is, the right operation handlebar 162a extends upward from the upper end portion of the right side member 154. The lower end of the right operation handlebar 162a is connected to the upper end of the right side member 154.
- the right operation handlebar may extend from the upper end of the right side member in a direction different from the direction in which the right side member extends. Further, the right operation handlebar and the right side member may be an integral member.
- the right grip portion 162b extends from the upper part of the right operation handlebar 162a in a direction intersecting the extending direction of the right operation handlebar 162a.
- the right grip portion 162b is gripped by the operator's right hand.
- the operator of the vehicle 101 can manually lift the left operation handle 161 to swing the upper cross member 151 and the lower cross member 152 of the link mechanism 105 with respect to the link mechanism support portion 122. ..
- the left front wheel 31 can be moved upward via the left side member 153 by operating the left operation handle 161. Therefore, when the left front wheel 131 comes into contact with the step S, for example, as shown in FIG. 7, the operator lifts the left operation handle 161 by hand, so that the force received when the left front wheel 131 comes into contact with the step S. Can be reduced.
- the operator of the vehicle 101 lifts the right operation handle 162 upward by hand, the upper cross member 151 and the lower cross member 152 of the link mechanism 105 can be swung with respect to the link mechanism support portion 122.
- the right front wheel 32 can be moved upward via the right side member 154 by operating the right operation handle 162. Therefore, when the right front wheel 32 comes into contact with the step S, for example, the operator lifts the right operation handle 162 by hand, so that the force received when the right front wheel 32 comes into contact with the step S can be reduced.
- the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operator manually operating the pair of operation handles 160. Can be adjusted by the front wheel adjustment mechanism 6. Therefore, when the left front wheel 31 or the right front wheel 32 comes into contact with the step S, the contacted wheel can easily get over the step S.
- the left operation handle 161 is provided so as to be linearly displaced with respect to the vehicle body body 102.
- the right operation handle 162 is provided so as to be linearly displaced with respect to the vehicle body body 102.
- the operator of the vehicle 101 manually displaces the left operation handle 161 or the right operation handle 162 to move the upper cross member 151 and the lower cross member 152 of the link mechanism 105 to the vehicle body body 102. On the other hand, it can be swung.
- the first central rocking axis UI and the second central rocking axis DI extend in the front-rear direction and the up-down direction so as to be located upward from the back to the front. Therefore, as shown in FIG. 7, the operator of the vehicle 101 manually operates the left operation handle 161 or the right operation handle 162 in the extension direction when the left front wheel 31 and the right front wheel 32 come into contact with the step. , The load applied to the left front wheel 31 and the right front wheel 32 or the positions of the left front wheel 31 and the right front wheel 32 can be easily adjusted.
- the vehicle 101 having the configuration of the present embodiment it is possible to prevent the force of tilting the left front wheel 31 and the right front wheel 32 in the left-right direction from acting on the vehicle body main body 102.
- the direction of the force input to the left front wheel 31 or the right front wheel 32 from the step S on the road surface G is the same as the extending direction of the left side member 153, the right side member 154, and the link mechanism support portion 122. Therefore, it is possible to prevent the left side member 153, the right side member 154, and the link mechanism support portion 122 from being deformed. As a result, the left front wheel 31 or the right front wheel 32 can easily get over the step S on the road surface G.
- the upper cross member 151 is supported on the vehicle body body 102 so as to be swingable around the first central swing axis UI without being provided with an urging member for returning to the neutral position.
- the lower cross member 152 is supported so as to be swingable around the second central swing axis DI without being provided with an urging member for returning to the neutral position with respect to the vehicle body main body 102.
- the urging member may be, for example, a member that generates an elastic restoring force such as a coil spring, a leaf spring, or rubber, or a component that applies a driving force such as an actuator. Good.
- the urging member does not cause the upper cross member 151 and the lower cross member 152 to return to the neutral position, so that the shaking of the vehicle 101 caused by the shaking of the upper cross member 151 and the lower cross member 152 can be reduced. That is, the followability of the left front wheel 31 and the right front wheel 32 to the uneven road surface can be improved.
- the upper cross member 151 and the lower cross member 152 can be operated smoothly. Thereby, the load applied to the left front wheel 31 and the right front wheel 32 or the positions of the left front wheel 31 and the right front wheel 32 can be easily adjusted.
- FIG. 8 is a diagram showing a schematic configuration of the vehicle 201 according to the third embodiment.
- This vehicle 201 is different from the vehicle 101 of the second embodiment in that a pair of left and right front wheels 203 are provided on the front portion of the loading platform 221 via a link mechanism 205.
- the same configurations as those of the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted, and only the configurations different from those of the first and second embodiments will be described.
- the vehicle 201 has a vehicle body body 202, a pair of left and right front wheels 203, a pair of left and right rear wheels 204, a link mechanism 205, and a front wheel adjustment mechanism 206.
- the front wheel adjustment mechanism 206 includes a pair of operating handles 260.
- the vehicle 201 is, for example, a trolley capable of carrying a load or the like placed on a loading platform 221 described later in the vehicle body body 202.
- the vehicle body body 202 has a loading platform 221 on which luggage and the like can be placed, and a link mechanism support portion 222 that supports the link mechanism 205.
- the loading platform 221 is a rectangular plate-shaped member in a plan view.
- a pair of left and right rear wheels 204 are provided below the rear portion of the loading platform 221.
- the pair of left and right rear wheels 204 includes a left rear wheel 241 and a right rear wheel 242.
- the left rear wheel 241 is provided on the left side in the lower part of the rear part of the loading platform 221.
- the right rear wheel 242 is provided on the right side in the lower part of the rear part of the loading platform 221.
- the loading platform 221 constitutes the vehicle body frame of the vehicle body body 202.
- a link mechanism support portion 222 for supporting a pair of left and right front wheels 203 is provided on the front portion of the loading platform 221. At the left and right ends of the front portion of the loading platform 221, when the pair of left and right front wheels 203 supported by the link mechanism support portion 222 move in the vertical direction as described later, they interfere with the pair of left and right front wheels 203. A notch 221a is provided to prevent this from happening.
- the link mechanism support portion 222 extends upward from the upper part of the front portion of the loading platform 221 when the vehicle 201 is viewed from the front. Specifically, the link mechanism support portion 222 extends upward and backward from the front portion of the loading platform 221 so that the upper portion is located behind the lower portion.
- the link mechanism support portion 222 is fixed to the center of the loading platform 221 in the left-right direction.
- the link mechanism support portion 222 supports the upper cross member 251 described later of the link mechanism 205 so as to be swingable around the first central swing axis UI, and the lower cross member 252 described later is supported by the second center swing. It supports swingably around the moving axis DI.
- the link mechanism 205 front wheel displacement link mechanism
- the link mechanism 205 includes an upper cross member 251 (first swing lever), a lower cross member 252 (second swing lever), and a left side member 253 (left front wheel support). Includes right side member 254 (right front wheel support). Similar to the first and second embodiments, the link mechanism 205 is a parallel four-node link (also referred to as a parallelogram link) type link mechanism. The link mechanism 205 is located above the pair of left and right front wheels 203.
- the link mechanism 205 has the same configuration as the link mechanism 5 of the first embodiment except for the arrangement. Therefore, the detailed description of the configuration of the link mechanism 205 will be omitted.
- the left side member 253 and the right side member 254 extend in the vertical direction and the front-rear direction so that the upper portion is located behind the lower portion, respectively. Therefore, also in the present embodiment, as in the first and second embodiments, the left side member 253, the right side member 254, and the link mechanism support portion 222 are parallel to each other.
- the upper cross member 251 extends in the left-right direction.
- the central portion of the upper cross member 251 in the left-right direction is swayably supported around the first central swing axis UI without being provided with an urging member for returning to the neutral position with respect to the link mechanism support portion 222.
- the first central swing axis UI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the lower cross member 252 extends in the left-right direction.
- the central portion of the lower cross member 252 in the left-right direction is swayably supported around the second central swing axis DI without being provided with an urging member for returning to the neutral position with respect to the link mechanism support portion 222.
- the second central swing axis DI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the left end of the upper cross member 251 is swingably connected to the left side member 253 around the first left swing axis UL.
- the first left swing axis UL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the first left swing axis UL is parallel to the first center swing axis UI.
- the left end of the lower cross member 252 is swingably connected to the left side member 253 around the second left swing axis DL.
- the second left swing axis DL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the second left swing axis DL is parallel to the second center swing axis DI.
- the right end of the upper cross member 251 is swingably connected to the right side member 254 around the first right swing axis UR.
- the first right swing axis UR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the first right swing axis UR is parallel to the first center swing axis UI.
- the right end of the lower cross member 252 is swingably connected to the right side member 254 around the second right swing axis DR.
- the second right swing axis DR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
- the second right swing axis DR is parallel to the second center swing axis DI.
- the driving axis DRs extend parallel to each other.
- the first center swing axis UI, the first left swing axis UL, the first right swing axis UR, the second center swing axis DI, the second left swing axis DL, and the second right swing axis DR are left front. It is located above the wheel 31 and the right front wheel 32.
- the left side member 253 and the right side member 254 the upper cross member 251 and the lower cross member 252 maintain a posture parallel to each other, and the left side.
- the member 253 and the right side member 254 are supported by the vehicle body body 202 so as to maintain a posture parallel to each other. That is, as described above, the upper cross member 251 and the lower cross member 252 are rotatably supported by the link mechanism support portion 222. Further, the left side member 253 and the right side member 254 move in the vertical direction with respect to the vehicle body body 202 when the vehicle 201 is viewed from the front.
- the shape and operation of the link mechanism 205 are the same as the shape and operation of the link mechanism 5 of the first embodiment and the link mechanism 105 of the second embodiment. Therefore, detailed description of the shape and operation of the link mechanism 205 will be omitted.
- the pair of left and right front wheels 203 includes the left front wheel 231 and the right front wheel 232.
- the left front wheel 231 is rotatably supported by the left side member 253 of the link mechanism 205 about the left rotation axis WL extending in the vertical direction.
- the left front wheel 231 is a caster type wheel.
- the rotation angle range of the left front wheel 231 may be 360 degrees or smaller than 360 degrees.
- the right front wheel 232 is rotatably supported by the right side member 254 of the link mechanism 205 about the right rotation axis WR extending in the vertical direction.
- the right front wheel 232 is a caster type wheel.
- the rotation angle range of the right front wheel 232 may be 360 degrees or less than 360 degrees.
- the pair of operation handles 260 includes a left operation handle 261 (first operation handle) and a right operation handle 262 (second operation handle).
- the left operation handle 261 has a left operation handle bar 261a and a left grip portion 261b.
- the left operation handlebar 261a and the left grip portion 261b are integrally configured.
- the lower portion of the left operation handlebar 261a extends from the upper end of the left side member 253 in the link mechanism 205 in the same direction (extension direction) as the left side member 253 extends so as to be continuous with the left side member 253. That is, the lower portion of the left operation handlebar 261a extends in the front-rear direction and the up-down direction so as to be located upward from the upper end portion of the left side member 253 toward the rear.
- the upper portion of the left operation handlebar 261a extends, for example, parallel to the loading platform 221 and rearward.
- the lower end of the left operation handlebar 261a is connected to the upper end of the left side member 253.
- the lower portion of the left operation handlebar may extend from the upper end of the left side member in a direction different from the direction in which the left side member extends.
- the upper part of the left operation handlebar does not have to be parallel to the loading platform 221.
- the upper part of the left operation handlebar may extend in the direction in which the lower part of the left operation handlebar extends.
- the left operation handlebar and the left side member may be an integral member.
- the left grip portion 261b extends from the rear end portion of the left operation handlebar 261a in a direction intersecting the extending direction of the rear portion of the left operation handlebar 261a.
- the left grip portion 261b is gripped by the operator's left hand.
- the right operation handle 262 has a right operation handle bar 262a and a right grip portion 262b.
- the right operation handlebar 262a and the right grip portion 262b are integrally configured.
- the lower portion of the right operation handlebar 262a extends from the upper end of the right side member 254 in the link mechanism 205 in the same direction (extension direction) as the right side member 254 extends so as to be continuous with the right side member 254. That is, the lower portion of the right operation handlebar 262a extends in the front-rear direction and the up-down direction so as to be located upward from the upper end portion of the right side member 254 toward the rear.
- the upper portion of the right operating handlebar 262a extends, for example, parallel to the loading platform 221 and backward.
- the lower end of the right operation handlebar 262a is connected to the upper end of the right side member 254.
- the lower portion of the right operation handlebar may extend from the upper end of the right side member in a direction different from the direction in which the right side member extends.
- the upper part of the right operating handlebar does not have to be parallel to the loading platform 221.
- the upper part of the right operation handlebar may extend in the direction in which the lower part of the right operation handlebar extends.
- the right operation handlebar and the right side member may be an integral member.
- the right grip portion 262b extends from the rear end portion of the right operation handlebar 262a in a direction intersecting the extending direction of the rear portion of the right operation handlebar 262a.
- the right grip portion 262b is gripped by the operator's right hand.
- the operator of the vehicle 201 can manually lift the left operation handle 261 to swing the upper cross member 251 and the lower cross member 252 of the link mechanism 205 with respect to the link mechanism support portion 222. ..
- the left front wheel 231 can be moved upward via the left side member 253 by operating the left operation handle 261. Therefore, when the left front wheel 231 comes into contact with the step, for example, the operator lifts the left operation handle 261 upward by hand, so that the force received when the left front wheel 231 comes into contact with the step can be reduced.
- the operator of the vehicle 201 lifts the right operation handle 262 by hand, the upper cross member 251 and the lower cross member 252 of the link mechanism 205 can be swung with respect to the link mechanism support portion 222.
- the right front wheel 232 can be moved upward via the right side member 254 by operating the right operation handle 262. Therefore, when the right front wheel 232 comes into contact with the step, for example, the operator lifts the right operation handle 262 by hand, so that the force received when the right front wheel 232 comes into contact with the step can be reduced.
- the load applied to the left front wheel 231 and the right front wheel 232 or the position of the left front wheel 231 and the right front wheel 232 by the operator manually operating the pair of operation handles 260. Can be adjusted by the front wheel adjustment mechanism 206. Therefore, when the left front wheel 231 or the right front wheel 232 comes into contact with the step, the contacted wheel can easily get over the step.
- the left operation handle 261 is provided so as to be linearly displaced with respect to the vehicle body body 202.
- the right operation handle 262 is provided so as to be linearly displaced with respect to the vehicle body body 202.
- the operator of the vehicle 201 performs an operation of linearly displaces the left operation handle 261 or the right operation handle 262 by hand, so that the upper cross member 251 and the lower cross member 252 of the link mechanism 205 are attached to the vehicle body body 202. On the other hand, it can be swung.
- the first central rocking axis UI and the second central rocking axis DI extend in the front-rear direction and the up-down direction so as to be positioned upward from the back to the front, so that the left front wheel
- the force received by the 231 and the right front wheel 232 from the road surface can prevent a force or moment in the left-right direction from being generated in the vehicle body body 202.
- An upward and rearward force is only applied to the vehicle body body 202 by the force received from the road surface by the left front wheel 231 and the right front wheel 232.
- the vehicle 201 having the configuration of the present embodiment it is possible to more reliably prevent the force of the left front wheel 231 and the right front wheel 232 from tilting in the left-right direction on the vehicle body body 202.
- the upper cross member 251 swings around the first central swing axis UI without being provided with an urging member for returning to the neutral position with respect to the vehicle body main body 202. It is movably supported.
- the lower cross member 252 is supported on the vehicle body body 202 so as to be swingable around the second central swing axis DI without being provided with an urging member for returning to the neutral position.
- a vehicle 201 capable of expanding the usable environment can be obtained as in the second embodiment.
- the vehicles 1, 101, 201 have link mechanisms 5, 105, 205 that support a pair of left and right front wheels 3, 203.
- the vehicle may have a link mechanism that supports a pair of left and right rear wheels.
- the vehicles 1, 101, 201 do not have a drive source for driving the wheels.
- the vehicle may have a drive source for driving the wheels.
- the front wheel adjustment mechanism 6 has a left operation handle 61 and a right operation handle 62.
- the left operation handle 61 is connected to the upper end of the left side member 53 of the link mechanism 5.
- the right operation handle 62 is connected to the upper end of the right side member 54 of the link mechanism 5.
- the front wheel adjustment mechanism may have any configuration as long as the left side member and the right side member of the link mechanism can be moved in the vertical direction.
- the front wheel adjustment mechanism is, for example, a load applied to the left front wheel 31 and the right front wheel 32 by swinging the operation handle 365 with respect to the vehicle body body 2, or the left front wheel 31 and the right front wheel. The position of 32 may be adjusted.
- FIG. 9 The configuration shown in FIG. 9 will be described below.
- the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted, and only the configurations different from those in the first embodiment will be described.
- the vehicle 301 shown in FIG. 9 has a front wheel adjustment mechanism 306.
- the front wheel adjustment mechanism 306 is provided on the front portion of the vehicle body body 2.
- the front wheel adjustment mechanism 306 includes a connecting member 361, support members 362, 363, and an operation handle 365.
- the connecting member 361 connects the upper end portion of the left side member 53 of the link mechanism 5 and the upper end portion of the right side member 54.
- the connecting member 361 is a flexible member such as a wire or a belt.
- the connecting member 361 is supported by the support members 362 and 363 supported by the vehicle body body 2 so as to extend upward from the left side member 53 and the right side member 54.
- the support members 362 and 363 are members that movably support the connecting member 361, such as a pulley.
- the operation handle 365 is fixed to the connecting member 361.
- the connecting member 361 By moving the operation handle 365 in the left-right direction, the connecting member 361 also moves in the left-right direction.
- the left side member 53 and the right side member 54 connected to the connecting member 361 move in the vertical direction, and the upper cross member 51 and the lower cross member 52 of the link mechanism 5 with respect to the link mechanism support portion 22. Swing.
- the front wheel adjustment mechanism 306 can adjust the load applied to the left front wheel 31 and the right front wheel 32 or the positions of the left front wheel 31 and the right front wheel 32.
- the front wheel adjustment mechanism as shown in FIG. 9 may be applied to the configurations of the second and third embodiments.
- the first central rocking axis UI and the second central rocking axis DI of the link mechanisms 105 and 205 extend in the front-rear direction and the up-down direction so as to be positioned upward from the back to the front. ing.
- the first central rocking axis UI and the second central rocking axis DI may extend in the front-rear direction as in the first embodiment.
- the operation handle 160 extends upward and backward from the left main frame 121a and the right main frame 121b, respectively, so as to be located upward toward the rear.
- the operation steering wheel has a first position extending upward and backward so as to be located upward toward the rear of the vehicle body frame, and an upward and forward direction so as to be located upward toward the front. It may be configured to be switchable to a second position extending to. As a result, the maneuvering position of the driver of the vehicle can be switched between the back position and the front position with respect to the infant seated on the seat.
- the wheel that functions as the front wheel in the first position functions as the rear wheel in the second position. Therefore, when the position of the operation handle can be switched as described above, in the configuration of the second embodiment, when the traveling mode of the vehicle is the first traveling mode, the link mechanism is the traveling of the vehicle. While functioning in the front portion of the direction, when the traveling mode of the vehicle is the second traveling mode, the link mechanism functions in the rear portion of the traveling direction of the vehicle.
- the link mechanism located at the rear part in the traveling direction of the vehicle does not function according to the position of the operating handle. It has a locking mechanism to lock.
- This locking mechanism locks the cross member and the side member, locks the pair of cross members, or locks the pair of side members so that the pair of cross members and the pair of side members in the link mechanism do not move relative to each other. Lock each other.
- the operation handle When switching the position of the operation handle, the operation handle is connected to a link mechanism that supports a wheel that functions as a front wheel. As a result, even when the operation handle is switched between the first position and the second position, the same operation and effect as in the second embodiment can be obtained.
- the left front wheel 31 and the right front wheel 32 are caster type wheels that rotate about a rotation axis extending in the vertical direction, respectively.
- at least one of the left front wheel and the right front wheel may be a wheel that does not rotate about a rotation axis extending in the vertical direction.
- at least one of the left rear wheel and the right rear wheel may be a wheel that rotates about a rotation axis extending in the vertical direction.
- the left operation handles 61, 161, 261 of the front wheel adjustment mechanisms 6, 106, 206 are connected to the left side members 53, 153, 253 of the link mechanisms 5, 105, 205.
- the right operating handles 62, 162, 262 of the front wheel adjustment mechanisms 6, 106, 206 are connected to the right side members 54, 154, 254 of the link mechanisms 5, 105, 205.
- the left operation handle 61 and the right operation handle 62 may be connected to the link mechanism 5 via the clutch mechanism 70.
- the clutch mechanism 70 is configured so that the left operation handle 61, the right operation handle 62, and the link mechanism 5 can be switched to a connected or disconnected state.
- the clutch mechanism 70 connects the left operation handle 61 and the right operation handle 62 to the vehicle body body 2 when the left operation handle 61, the right operation handle 62, and the link mechanism 5 are disconnected.
- reference numeral 401 indicates a vehicle.
- the operation handle of the front wheel adjustment mechanism is connected to the link mechanism and the operation handle of the front wheel adjustment mechanism is disconnected from the link mechanism according to the environment in which the vehicle is used. And can be switched. Therefore, it is possible to switch whether or not the load applied to the left front wheel and the right front wheel is adjusted or whether or not the positions of the left front wheel and the right front wheel are adjusted according to the environment in which the vehicle is used. Therefore, the environment in which the vehicle can be used can be expanded.
- the lower end portions of the left operation handles 61, 161, 261 are connected to the upper end portions of the left side members 53, 153, 253 of the link mechanisms 5, 105, 205.
- the lower ends of the right operating handles 62, 162, 262 are connected to the upper ends of the right side members 54, 154, 254 of the link mechanisms 5, 105, 205.
- the left operation handle may be connected to any part of the left side member as long as it is connected to the left side member of the link mechanism.
- the right operation handle may be connected to any part of the right side member as long as it is connected to the right side member of the link mechanism.
- the link mechanisms 5, 105, 205 have upper cross members 51, 151, 251 located in front of the link mechanism support portions 22, 122, 222.
- the link mechanism may have a rear upper cross member behind the upper cross member and the link mechanism support portion.
- the link mechanism may have a front upper cross member located in front of the link mechanism support portion and a rear upper cross member located behind the link mechanism support portion.
- the left operation handles 61, 161, 261 have left grip portions 61b, 161b, 261b.
- the right operating handles 62, 162, 262 have right grips 62b, 162b, 262b.
- the left operating handle does not have to have a left grip.
- the right operating handle does not have to have a right grip.
- each of the above embodiments may be applied to other vehicles such as wheelchairs. That is, the configuration of each of the above-described embodiments is any vehicle as long as it is required to further suppress the force acting on the vehicle body body while maintaining the contact state between the uneven road surface and the wheels. It may be applied to different types of vehicles.
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Abstract
Provided is a vehicle capable of expanding the environment in which the vehicle can be used. A vehicle 1 comprises: a link mechanism 5 for supporting a left front wheel 31 or a right front wheel 32 in such a manner as to allow the left or right front wheel to be displaced in the up/down direction with respect to a vehicle main body 2; and a front wheel adjustment mechanism 6 having an operation handle 60 which is operable by the hand of the operator of the vehicle 1 and which is connected to the link mechanism 5 so as to allow an upper cross member 51 and a lower cross member 52 to be swung by the operation performed by the operator, the front wheel adjustment mechanism adjusting the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 when the upper cross member 51 and the lower cross member 52 are swung by the operation of the operation handle 60 performed by the operator.
Description
本発明は、車両に関する。
The present invention relates to a vehicle.
車体本体と、前記車体本体に支持される左後輪及び右後輪と、前記車体本体に支持される左前車輪及び右前車輪と、を備えた車両が知られている。
A vehicle having a vehicle body body, left rear wheels and right rear wheels supported by the vehicle body body, and left front wheels and right front wheels supported by the vehicle body body is known.
このような車両として、例えば特許文献1には、前脚及び後脚を有する本体フレームと、前記前脚及び前記後脚にそれぞれ設けられた車輪とを備えた乳母車が開示されている。特許文献1に開示される乳母車では、前記本体フレームに、ハンドルが接続されている。
As such a vehicle, for example, Patent Document 1 discloses a baby carriage provided with a main body frame having front legs and rear legs, and wheels provided on the front legs and the rear legs, respectively. In the baby carriage disclosed in Patent Document 1, a handle is connected to the main body frame.
上述の乳母車のような車両では、段差を乗り越える場合などのように様々な走行シーンにおける利用が考えられる。しかしながら、上述の乳母車のような車両では、例えば段差を乗り越える際に、前記段差に最初に接触した車輪が走行方向とは異なる方向(例えば走行法方向とは反対方向)に力を受ける。このように、前記車両を利用する環境によっては、前記車両の操縦者の負担が大きくなる可能性がある。そのため、前記車両を利用可能な環境が限定される可能性がある。
In a vehicle such as the baby carriage mentioned above, it can be used in various driving scenes such as when overcoming a step. However, in a vehicle such as the baby carriage described above, for example, when overcoming a step, the wheel that first comes into contact with the step receives a force in a direction different from the traveling direction (for example, a direction opposite to the traveling direction). As described above, depending on the environment in which the vehicle is used, the burden on the operator of the vehicle may increase. Therefore, the environment in which the vehicle can be used may be limited.
これに対し、上述の乳母車のような車両を利用可能な環境を拡大することが求められている。
On the other hand, it is required to expand the environment in which vehicles such as the above-mentioned baby carriage can be used.
本発明は、利用可能な環境を拡大可能な車両を提供することを目的とする。
An object of the present invention is to provide a vehicle whose available environment can be expanded.
本発明者らは、車両を利用可能な環境を拡大可能な構成について検討した。鋭意検討の結果、本発明者らは、以下のような構成に想到した。
The present inventors examined a configuration capable of expanding the environment in which the vehicle can be used. As a result of diligent studies, the present inventors have come up with the following configuration.
本発明の一実施形態に係る車両は、車体本体と、前記車体本体に支持される左後車輪及び右後車輪と、前記車体本体に支持される左前車輪及び右前車輪と、を備えた車両である。この車両は、左右方向に延びる部材であり、左右方向の中央部が、前記車体本体に、前記車体本体の前後方向に延びる第1中央揺動軸線回りに揺動可能に支持される第1揺動レバーと、左右方向に延びる部材であり、左右方向の中央部が、前記第1揺動レバーよりも下で、前記車体本体に、前記車体本体の前後方向に延びる第2中央揺動軸線回りに揺動可能に支持される第2揺動レバーと、上下方向に延びる部材であり、前記第1揺動レバーの左端部に、前記車体本体の前後方向に延びる第1左揺動軸線回りに揺動可能に支持され、且つ、前記第2揺動レバーの左端部に、前記車体本体の前後方向に延びる第2左揺動軸線回りに揺動可能に支持され、前記左前車輪を支持する左前車輪支持体と、上下方向に延びる部材であり、前記第1揺動レバーの右端部に、前記車体本体の前後方向に延びる第1右揺動軸線回りに揺動可能に支持され、且つ、前記第2揺動レバーの右端部に、前記車体本体の前後方向に延びる第2右揺動軸線回りに揺動可能に支持され、前記右前車輪を支持する右前車輪支持体と、を含み、前記左前車輪または前記右前車輪を、前記車体本体に対して、上下方向に変位可能な状態で支持する前車輪変位リンク機構と、前記車両の操縦者が手で操作可能であり且つ前記操縦者の操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させるように前記前車輪変位リンク機構に接続される操作ハンドルを有し、前記操縦者による前記操作ハンドルの操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する前車輪調整機構と、を備える。
A vehicle according to an embodiment of the present invention is a vehicle including a vehicle body, left rear wheels and right rear wheels supported by the vehicle body, and left front wheels and right front wheels supported by the vehicle body. is there. This vehicle is a member extending in the left-right direction, and a first swing in which a central portion in the left-right direction is swingably supported by the vehicle body body around a first central swing axis extending in the front-rear direction of the vehicle body body. A moving lever and a member extending in the left-right direction, the central portion in the left-right direction is below the first swing lever, and around the second central swing axis extending in the front-rear direction of the vehicle body to the vehicle body. A second swing lever that is swingably supported and a member that extends in the vertical direction. At the left end of the first swing lever, around the first left swing axis that extends in the front-rear direction of the vehicle body. The left front wheel is swingably supported and is swingably supported at the left end of the second swing lever around the second left swing axis extending in the front-rear direction of the vehicle body body to support the left front wheel. It is a wheel support and a member extending in the vertical direction, and is supported by the right end of the first swing lever so as to be swingable around the first right swing axis extending in the front-rear direction of the vehicle body body. The right end of the second swing lever includes a right front wheel support that is swingably supported around a second right swing axis extending in the front-rear direction of the vehicle body body and supports the right front wheel, and includes the left front. A front wheel displacement link mechanism that supports the wheel or the right front wheel in a state of being displaceable in the vertical direction with respect to the vehicle body body, and a front wheel displacement link mechanism that can be manually operated by the operator of the vehicle and is operated by the operator. It has an operation handle connected to the front wheel displacement link mechanism so as to swing the first swing lever and the second swing lever, and the first swing is caused by the operation of the operation handle by the operator. The front wheel adjusting mechanism for adjusting the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel by swinging the lever and the second swing lever is provided.
左前車輪及び右前車輪は、前車輪変位リンク機構によって、車体本体に対して上下方向に変位可能な状態で支持される。車両の操縦者が前車輪調整機構の操作ハンドルを手で操作して前記前車輪変位リンク機構の第1揺動レバー及び第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整できる。
The left front wheel and the right front wheel are supported by the front wheel displacement link mechanism in a state where they can be displaced in the vertical direction with respect to the vehicle body body. The left front wheel and the right front wheel are caused by the driver of the vehicle manually operating the operation handle of the front wheel adjustment mechanism to swing the first swing lever and the second swing lever of the front wheel displacement link mechanism. The load applied to the wheel or the positions of the left front wheel and the right front wheel can be adjusted.
よって、前記車両の前記左前車輪または前記右前車輪が例えば段差に接触する際に、前記車両の操縦者が、前記前車輪調整機構の前記操作ハンドルを手で操作することにより、前記前車輪変位リンク機構の前記第1揺動レバー及び前記第2揺動レバーを揺動させて、前記段差に接触する車輪を持ち上げることができる。これにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整することができる。したがって、前記車両が例えば前記段差を乗り越える場合には、前記段差を容易に乗り越えることができる。
Therefore, when the left front wheel or the right front wheel of the vehicle comes into contact with, for example, a step, the operator of the vehicle manually operates the operation handle of the front wheel adjustment mechanism to cause the front wheel displacement link. The first swing lever and the second swing lever of the mechanism can be swung to lift the wheel in contact with the step. Thereby, the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted. Therefore, when the vehicle gets over the step, for example, it can easily get over the step.
以上より、前記車両を利用可能な環境を拡大することができる。
From the above, the environment in which the vehicle can be used can be expanded.
他の観点によれば、本発明の車両は、以下の構成を含むことが好ましい。前記操作ハンドルは、第1操作ハンドル及び第2操作ハンドルを含む。前記第1操作ハンドルは、前記第1揺動レバーの左部及び前記第2揺動レバーの左部に接続される。前記第2操作ハンドルは、前記第1揺動レバーの右部及び前記第2揺動レバーの右部に接続される。前記前車輪調整機構は、前記操縦者による前記第1操作ハンドル及び前記第2操作ハンドルの少なくとも一方の操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する。
From another point of view, the vehicle of the present invention preferably includes the following configurations. The operation handle includes a first operation handle and a second operation handle. The first operation handle is connected to the left portion of the first swing lever and the left portion of the second swing lever. The second operation handle is connected to the right portion of the first swing lever and the right portion of the second swing lever. The front wheel adjustment mechanism causes the first swing lever and the second swing lever to swing by the operation of at least one of the first operation handle and the second operation handle by the operator, thereby causing the left front. The load applied to the wheels and the right front wheel or the positions of the left front wheel and the right front wheel are adjusted.
これにより、車両の操縦者が第1操作ハンドル及び第2操作レバーの少なくとも一方を操作することにより、前車輪変位リンク機構の第1揺動レバー及び第2揺動レバーを揺動させて左前車輪及び右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整できる。
As a result, the driver of the vehicle operates at least one of the first operation handle and the second operation lever to swing the first swing lever and the second swing lever of the front wheel displacement link mechanism to swing the left front wheel. And the load applied to the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
よって、車両に応じてハンドル操作の自由度を向上可能な構成を実現できる。しかも、上述の構成により、前記車両を利用する環境に応じて、前記車両の操縦者は、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を容易に調整することができる。
Therefore, it is possible to realize a configuration that can improve the degree of freedom of steering wheel operation according to the vehicle. Moreover, with the above configuration, the operator of the vehicle can easily adjust the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel according to the environment in which the vehicle is used. can do.
したがって、前記車両を利用可能な環境を拡大することができる。
Therefore, the environment in which the vehicle can be used can be expanded.
他の観点によれば、本発明の車両は、以下の構成を含むことが好ましい。前記第1操作ハンドルは、前記左前車輪支持体の上部に接続されている。前記第2操作ハンドルは、前記右前車輪支持体の上部に接続されている。
From another point of view, the vehicle of the present invention preferably includes the following configurations. The first operating handle is connected to the upper part of the left front wheel support. The second operating handle is connected to the upper part of the right front wheel support.
これにより、車両の操縦者が第1操作ハンドル及び第2操作レバーの少なくとも一方を操作することにより、前車輪変位リンク機構の第1揺動レバー及び第2揺動レバーを揺動させて左前車輪及び右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整できる。
As a result, the driver of the vehicle operates at least one of the first operation handle and the second operation lever to swing the first swing lever and the second swing lever of the front wheel displacement link mechanism to swing the left front wheel. And the load applied to the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
したがって、前記車両を利用可能な環境を拡大することができる。
Therefore, the environment in which the vehicle can be used can be expanded.
他の観点によれば、本発明の車両は、以下の構成を含むことが好ましい。前記前車輪調整機構は、前記操縦者による前記操作ハンドルの操作によって、前記左前車輪及び前記右前車輪を上下方向且つ前後方向に移動させるように構成されている。
From another point of view, the vehicle of the present invention preferably includes the following configurations. The front wheel adjustment mechanism is configured to move the left front wheel and the right front wheel in the vertical direction and the front-rear direction by the operation of the operation handle by the operator.
これにより、車両の操縦者が第1操作ハンドル及び第2操作レバーの少なくとも一方を操作することにより、左前車輪及び右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整できる。
Thereby, the operator of the vehicle can adjust the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel by operating at least one of the first operation handle and the second operation lever.
したがって、前記車両を利用可能な環境を拡大することができる。
Therefore, the environment in which the vehicle can be used can be expanded.
他の観点によれば、本発明の車両は、以下の構成を含むことが好ましい。前記操作ハンドルは、前記車体本体に対して直線的に変位するように設けられている。前記前車輪調整機構は、前記操縦者による前記操作ハンドルを直線的に変位させる操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する。
From another point of view, the vehicle of the present invention preferably includes the following configurations. The operation handle is provided so as to be linearly displaced with respect to the vehicle body body. The front wheel adjustment mechanism causes the left front wheel and the right front wheel to swing by swinging the first swing lever and the second swing lever by an operation of linearly displace the operation handle by the operator. The applied load or the positions of the left front wheel and the right front wheel are adjusted.
操作ハンドルを車体本体に対して直線的に変位させることにより、左前車輪及び右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整することができる。
By displacing the operation handle linearly with respect to the vehicle body body, the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
したがって、前記車両を利用可能な環境を拡大することができる。
Therefore, the environment in which the vehicle can be used can be expanded.
他の観点によれば、本発明の車両は、以下の構成を含むことが好ましい。前記操作ハンドルは、前記車体本体に対して揺動するように設けられている。前記前車輪調整機構は、前記操縦者による前記操作ハンドルを揺動させる操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する。
From another point of view, the vehicle of the present invention preferably includes the following configurations. The operation handle is provided so as to swing with respect to the vehicle body body. The front wheel adjustment mechanism is applied to the left front wheel and the right front wheel by swinging the first swing lever and the second swing lever by the operation of swinging the operation handle by the operator. Adjust the load or the position of the left front wheel and the right front wheel.
操作ハンドルを車体本体に対して揺動させることにより、左前車輪及び右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整することができる。
By swinging the operation handle with respect to the vehicle body body, the load applied to the left front wheel and the right front wheel or the positions of the left front wheel and the right front wheel can be adjusted.
したがって、前記車両を利用可能な環境を拡大することができる。
Therefore, the environment in which the vehicle can be used can be expanded.
他の観点によれば、本発明の車両は、以下の構成を含むことが好ましい。前記前車輪調整機構は、前記操作ハンドルと前記前車輪変位リンク機構との間に、前記操作ハンドルと前記前車輪変位リンク機構とを接続状態または切断状態に切り替えるクラッチ機構を含む。
From another point of view, the vehicle of the present invention preferably includes the following configurations. The front wheel adjusting mechanism includes a clutch mechanism between the operating handle and the front wheel displacement link mechanism that switches the operating handle and the front wheel displacement link mechanism into a connected state or a disconnected state.
これにより、車両を利用する環境に応じて、操作ハンドルと前車輪変位リンク機構とを、クラッチ機構によって、接続状態と切断状態とに切り替えることができる。よって、車両を利用する環境に応じて、操縦者の前記操作ハンドルの操作による前車輪変位リンク機構の動作の有無を切り替えることができる。すなわち、車両を利用する環境に応じて、前記左前車輪及び前記右前車輪に付与される荷重の調整の有無または前記左前車輪及び前記右前車輪の位置の調整の有無を、切り替えることができる。
As a result, the operation handle and the front wheel displacement link mechanism can be switched between the connected state and the disconnected state by the clutch mechanism according to the environment in which the vehicle is used. Therefore, it is possible to switch whether or not the front wheel displacement link mechanism is operated by the operation of the operation handle of the operator according to the environment in which the vehicle is used. That is, it is possible to switch whether or not the load applied to the left front wheel and the right front wheel is adjusted or whether or not the positions of the left front wheel and the right front wheel are adjusted according to the environment in which the vehicle is used.
したがって、前記車両を利用可能な環境を拡大することができる。
Therefore, the environment in which the vehicle can be used can be expanded.
本明細書で使用される専門用語は、特定の実施例のみを定義する目的で使用されるのであって、前記専門用語によって発明を制限する意図はない。
The terminology used herein is used for the purpose of defining only specific examples, and there is no intention of limiting the invention by the terminology.
本明細書で使用される「及び/または」は、一つまたは複数の関連して列挙された構成物のすべての組み合わせを含む。
As used herein, "and / or" includes all combinations of one or more relatedly listed components.
本明細書において、「含む、備える(including)」「含む、備える(comprising)」または「有する(having)」及びそれらの変形の使用は、記載された特徴、工程、要素、成分、及び/または、それらの等価物の存在を特定するが、ステップ、動作、要素、コンポーネント、及び/または、それらのグループのうちの1つまたは複数を含むことができる。
As used herein, the use of "including, including," "comprising," or "having" and variations thereof are described as features, processes, elements, components, and / or. , Identifying the existence of their equivalents, but may include one or more of steps, actions, elements, components, and / or their groups.
本明細書において、「取り付けられた」、「接続された」、「結合された」、及び/または、それらの等価物は、広義の意味で使用され、“直接的及び間接的な”取り付け、接続及び結合の両方を包含する。さらに、「接続された」及び「結合された」は、物理的または機械的な接続または結合に限定されず、直接的または間接的な接続または結合を含むことができる。
In the present specification, "attached", "connected", "combined", and / or their equivalents are used in a broad sense and are "direct and indirect" attachments. Includes both connection and connection. Further, "connected" and "connected" are not limited to physical or mechanical connections or connections, but can include direct or indirect connections or connections.
他に定義されない限り、本明細書で使用される全ての用語(技術用語及び科学用語を含む)は、本発明が属する技術分野の当業者によって一般的に理解される意味と同じ意味を有する。
Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.
一般的に使用される辞書に定義された用語は、関連する技術及び本開示の文脈における意味と一致する意味を有すると解釈されるべきであり、本明細書で明示的に定義されていない限り、理想的または過度に形式的な意味で解釈されることはない。
Terms defined in commonly used dictionaries should be construed to have meaning consistent with the relevant technology and meaning in the context of the present disclosure, unless expressly defined herein. , Is not interpreted in an ideal or overly formal sense.
本発明の説明においては、いくつもの技術および工程が開示されていると理解される。これらの各々は、個別の利益を有し、他に開示された技術の1つ以上、または、場合によっては全てと共に使用することもできる。
It is understood that a number of techniques and processes are disclosed in the description of the present invention. Each of these has its own interests and can be used with one or more of the other disclosed techniques, or in some cases all.
したがって、明確にするために、本発明の説明では、不要に個々のステップの可能な組み合わせをすべて繰り返すことを控える。しかしながら、本明細書及び特許請求の範囲は、そのような組み合わせがすべて本発明の範囲内であることを理解して読まれるべきである。
Therefore, for the sake of clarity, the description of the present invention refrains from unnecessarily repeating all possible combinations of individual steps. However, the specification and claims should be read with the understanding that all such combinations are within the scope of the present invention.
本明細書では、本発明に係る車両の実施形態について説明する。
This specification describes an embodiment of the vehicle according to the present invention.
以下の説明では、本発明の完全な理解を提供するために多数の具体的な例を述べる。しかしながら、当業者は、これらの具体的な例がなくても本発明を実施できることが明らかである。
In the following description, a number of specific examples will be given to provide a complete understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without these specific examples.
よって、以下の開示は、本発明の例示として考慮されるべきであり、本発明を以下の図面または説明によって示される特定の実施形態に限定することを意図するものではない。
Therefore, the following disclosure should be considered as an example of the invention and is not intended to limit the invention to the particular embodiments set forth in the drawings or description below.
[前車輪]
本明細書において、前車輪とは、車両が有する複数の車輪のうち、前記車両の走行方向において車両の前部に位置する車輪を意味する。前記車両の前後は、前記車両の走行方向によって決まる。このように、本明細書では、前記前車輪は、前記車両が有する複数の車輪の中から前記車両の走行方向によって決まる。よって、例えば、前記車両の走行形態を、一方向に走行可能な第1走行形態と、前記一方向とは反対方向に走行可能な第2走行形態とに切り替え可能な場合には、前記第1走行形態と前記第2走行形態とで、前記車両の前部と後部とが入れ替わる。そのため、例えば、前記車両の前記第1走行形態において車両の前部で前車輪を支持する前車輪変位リンク機構は、前記車両の前記第2走行形態では前記車両の後部で後車輪を支持する。また、例えば、前記車両の前記第1走行形態において車両の後部で後車輪を支持する前車輪変位リンク機構は、前記車両の前記第2走行形態では前記車両の前部で前車輪を支持する。 [Front wheel]
In the present specification, the front wheel means a wheel located at the front portion of the vehicle in the traveling direction of the vehicle among a plurality of wheels possessed by the vehicle. The front and rear of the vehicle are determined by the traveling direction of the vehicle. As described above, in the present specification, the front wheel is determined by the traveling direction of the vehicle from among the plurality of wheels of the vehicle. Therefore, for example, when the traveling mode of the vehicle can be switched between the first traveling mode capable of traveling in one direction and the second traveling mode capable of traveling in the direction opposite to the one direction, the first traveling mode is described. The front portion and the rear portion of the vehicle are interchanged between the traveling mode and the second traveling mode. Therefore, for example, the front wheel displacement link mechanism that supports the front wheels at the front portion of the vehicle in the first traveling mode of the vehicle supports the rear wheels at the rear portion of the vehicle in the second traveling mode of the vehicle. Further, for example, the front wheel displacement link mechanism that supports the rear wheels at the rear portion of the vehicle in the first traveling mode of the vehicle supports the front wheels at the front portion of the vehicle in the second traveling mode of the vehicle.
本明細書において、前車輪とは、車両が有する複数の車輪のうち、前記車両の走行方向において車両の前部に位置する車輪を意味する。前記車両の前後は、前記車両の走行方向によって決まる。このように、本明細書では、前記前車輪は、前記車両が有する複数の車輪の中から前記車両の走行方向によって決まる。よって、例えば、前記車両の走行形態を、一方向に走行可能な第1走行形態と、前記一方向とは反対方向に走行可能な第2走行形態とに切り替え可能な場合には、前記第1走行形態と前記第2走行形態とで、前記車両の前部と後部とが入れ替わる。そのため、例えば、前記車両の前記第1走行形態において車両の前部で前車輪を支持する前車輪変位リンク機構は、前記車両の前記第2走行形態では前記車両の後部で後車輪を支持する。また、例えば、前記車両の前記第1走行形態において車両の後部で後車輪を支持する前車輪変位リンク機構は、前記車両の前記第2走行形態では前記車両の前部で前車輪を支持する。 [Front wheel]
In the present specification, the front wheel means a wheel located at the front portion of the vehicle in the traveling direction of the vehicle among a plurality of wheels possessed by the vehicle. The front and rear of the vehicle are determined by the traveling direction of the vehicle. As described above, in the present specification, the front wheel is determined by the traveling direction of the vehicle from among the plurality of wheels of the vehicle. Therefore, for example, when the traveling mode of the vehicle can be switched between the first traveling mode capable of traveling in one direction and the second traveling mode capable of traveling in the direction opposite to the one direction, the first traveling mode is described. The front portion and the rear portion of the vehicle are interchanged between the traveling mode and the second traveling mode. Therefore, for example, the front wheel displacement link mechanism that supports the front wheels at the front portion of the vehicle in the first traveling mode of the vehicle supports the rear wheels at the rear portion of the vehicle in the second traveling mode of the vehicle. Further, for example, the front wheel displacement link mechanism that supports the rear wheels at the rear portion of the vehicle in the first traveling mode of the vehicle supports the front wheels at the front portion of the vehicle in the second traveling mode of the vehicle.
[段差]
本明細書において、段差とは、車両が走行する路面において、上下方向の高さが段状に変化する部分を意味する。前記段差は、車両が走行する路面において、例えば縁石のように、前記路面の他の部分に対して段状に高い部分だけでなく、例えば窪みのように、前記路面の他の部分に対して段状に低い部分も含む。 [Step]
In the present specification, the step means a portion where the height in the vertical direction changes stepwise on the road surface on which the vehicle travels. On the road surface on which the vehicle travels, the step is not only a portion that is stepwise higher than the other portion of the road surface, such as a curb, but also a portion that is stepwise higher than the other portion of the road surface, such as a depression. Including the stepped low part.
本明細書において、段差とは、車両が走行する路面において、上下方向の高さが段状に変化する部分を意味する。前記段差は、車両が走行する路面において、例えば縁石のように、前記路面の他の部分に対して段状に高い部分だけでなく、例えば窪みのように、前記路面の他の部分に対して段状に低い部分も含む。 [Step]
In the present specification, the step means a portion where the height in the vertical direction changes stepwise on the road surface on which the vehicle travels. On the road surface on which the vehicle travels, the step is not only a portion that is stepwise higher than the other portion of the road surface, such as a curb, but also a portion that is stepwise higher than the other portion of the road surface, such as a depression. Including the stepped low part.
本発明の一実施形態によれば、利用可能な環境を拡大可能な車両を提供することができる。
According to one embodiment of the present invention, it is possible to provide a vehicle that can expand the available environment.
以下で、各実施形態について、図面を参照しながら説明する。各図において、同一部分には同一の符号を付して、その同一部分の説明は繰り返さない。なお、各図中の構成部材の寸法は、実際の構成部材の寸法及び各構成部材の寸法比率等を忠実に表したものではない。
Hereinafter, each embodiment will be described with reference to the drawings. In each figure, the same parts are designated by the same reference numerals, and the description of the same parts will not be repeated. The dimensions of the constituent members in each drawing do not faithfully represent the actual dimensions of the constituent members, the dimensional ratio of each constituent member, and the like.
以下、図中の矢印Fは、車両の前方向を示す。図中の矢印Bは、車両の後方向を示す。図中の矢印Uは、車両の上方向を示す。図中の矢印Dは、車両の下方向を示す。図中の矢印Rは、車両の右方向を示す。図中の矢印Lは、車両の左方向を示す。また、車両の進行方向を前方向とする。よって、車両の前後方向、左右方向及び上下方向は、それぞれ、車両の操縦者が車両の前方向を向いた状態での前後、左右及び上下の各方向を意味する。
Hereinafter, the arrow F in the figure indicates the front direction of the vehicle. The arrow B in the figure indicates the rear direction of the vehicle. The arrow U in the figure indicates the upward direction of the vehicle. The arrow D in the figure indicates the downward direction of the vehicle. The arrow R in the figure indicates the right direction of the vehicle. The arrow L in the figure indicates the left direction of the vehicle. In addition, the traveling direction of the vehicle is the forward direction. Therefore, the front-rear direction, the left-right direction, and the up-down direction of the vehicle mean the front-rear, left-right, and up-down directions when the driver of the vehicle faces the front direction of the vehicle, respectively.
[実施形態1]
(全体構成)
図1は、実施形態1に係る車両1の構成を模式的に示す図である。図2は、車両1を前から見た場合の車両前部の構成を模式的に示す図である。車両1は、車体本体2と、左右一対の前車輪3と、左右一対の後車輪4と、リンク機構5(前車輪変位リンク機構)と、前車輪調整機構6とを備える。本実施形態において、車両1は、4輪車である。左右一対の前車輪3は、リンク機構5を介して車体本体2に前後方向に回転可能に支持されている。左右一対の後車輪4は、車体本体2に前後方向に回転可能に支持されている。前車輪調整機構6は、一対の操作ハンドル60を含む。一対の操作ハンドル60は、車体本体2に接続されている。車両1の各構成の詳細は、後述する。 [Embodiment 1]
(overall structure)
FIG. 1 is a diagram schematically showing the configuration of thevehicle 1 according to the first embodiment. FIG. 2 is a diagram schematically showing the configuration of the front part of the vehicle when the vehicle 1 is viewed from the front. The vehicle 1 includes a vehicle body body 2, a pair of left and right front wheels 3, a pair of left and right rear wheels 4, a link mechanism 5 (front wheel displacement link mechanism), and a front wheel adjustment mechanism 6. In the present embodiment, the vehicle 1 is a four-wheeled vehicle. The pair of left and right front wheels 3 are rotatably supported by the vehicle body body 2 in the front-rear direction via a link mechanism 5. The pair of left and right rear wheels 4 are rotatably supported by the vehicle body body 2 in the front-rear direction. The front wheel adjustment mechanism 6 includes a pair of operating handles 60. The pair of operation handles 60 are connected to the vehicle body body 2. Details of each configuration of the vehicle 1 will be described later.
(全体構成)
図1は、実施形態1に係る車両1の構成を模式的に示す図である。図2は、車両1を前から見た場合の車両前部の構成を模式的に示す図である。車両1は、車体本体2と、左右一対の前車輪3と、左右一対の後車輪4と、リンク機構5(前車輪変位リンク機構)と、前車輪調整機構6とを備える。本実施形態において、車両1は、4輪車である。左右一対の前車輪3は、リンク機構5を介して車体本体2に前後方向に回転可能に支持されている。左右一対の後車輪4は、車体本体2に前後方向に回転可能に支持されている。前車輪調整機構6は、一対の操作ハンドル60を含む。一対の操作ハンドル60は、車体本体2に接続されている。車両1の各構成の詳細は、後述する。 [Embodiment 1]
(overall structure)
FIG. 1 is a diagram schematically showing the configuration of the
車両1は、操縦者が一対の操作ハンドル60を介して車体本体2に対し、前に力を加えることにより、前進する。車両1は、操縦者が一対の操作ハンドル60を介して車体本体2に対し、後ろに力を加えることにより、後進する。車両1は、操縦者が一対の操作ハンドル60を介して車体本体2に対し、左に旋回する力を加えることにより、左に旋回する。車両1は、操縦者が一対の操作ハンドル60を介して車体本体2に対し、右に旋回する力を加えることにより、右に旋回する。
The vehicle 1 moves forward when the operator applies a force forward to the vehicle body 2 via the pair of operation handles 60. The vehicle 1 moves backward when the operator applies a force backward to the vehicle body 2 via the pair of operation handles 60. The vehicle 1 turns to the left when the operator applies a force to turn to the left with respect to the vehicle body body 2 via the pair of operation handles 60. The vehicle 1 turns to the right when the operator applies a force to turn to the right to the vehicle body 2 via the pair of operation handles 60.
すなわち、車両1は、駆動源を有していない。また、車両1は、一対の操作ハンドル60によって左右一対の前車輪3及び左右一対の後車輪4の少なくとも一方を操舵する操舵機構を有していない。
That is, the vehicle 1 does not have a drive source. Further, the vehicle 1 does not have a steering mechanism for steering at least one of a pair of left and right front wheels 3 and a pair of left and right rear wheels 4 by a pair of operation handles 60.
左右一対の前車輪3は、左前車輪31と、右前車輪32とを含む。左前車輪31は、後述するリンク機構5の左サイド部材53の下端部に、路面に対して平行に延びる左前車輪回転軸線P31を中心として回転可能に支持されている。右前車輪32は、後述するリンク機構5の右サイド部材54の下端部に、路面に対して平行に延びる右前車輪回転軸線P32を中心として回転可能に支持されている。左前車輪31及び右前車輪32は、左右方向に並んで位置する。
The pair of left and right front wheels 3 includes a left front wheel 31 and a right front wheel 32. The left front wheel 31 is rotatably supported at the lower end of the left side member 53 of the link mechanism 5, which will be described later, about the left front wheel rotation axis P31 extending parallel to the road surface. The right front wheel 32 is rotatably supported at the lower end of the right side member 54 of the link mechanism 5, which will be described later, about the right front wheel rotation axis P32 extending parallel to the road surface. The left front wheel 31 and the right front wheel 32 are located side by side in the left-right direction.
なお、路面に対して平行とは、左前車輪回転軸線P31が路面に対して完全に平行な状態に限らず、車体本体2の左右方向の傾斜姿勢に影響を与えない程度に、左前車輪回転軸線P31が路面に対して傾いている状態も含む。以下の各回転軸線に関する説明においても同様である。
Note that parallel to the road surface is not limited to a state in which the left front wheel rotation axis P31 is completely parallel to the road surface, and the left front wheel rotation axis is not limited to the extent that it does not affect the left-right tilted posture of the vehicle body 2. It also includes a state in which P31 is tilted with respect to the road surface. The same applies to the following description of each rotation axis.
左右一対の後車輪4は、左後車輪41と、右後車輪42とを含む。左後車輪41は、車体本体2の後部に、路面に対して平行に延びる左後車輪回転軸線P41を中心として回転可能に支持されている。右後車輪42は、車体本体2の後部に、路面に対して平行に延びる右後車輪回転軸線P42を中心として回転可能に支持されている。左後車輪41及び右後車輪42は、左右方向に並んで位置する。
The pair of left and right rear wheels 4 includes a left rear wheel 41 and a right rear wheel 42. The left rear wheel 41 is rotatably supported at the rear portion of the vehicle body 2 about the left rear wheel rotation axis P41 extending parallel to the road surface. The right rear wheel 42 is rotatably supported at the rear portion of the vehicle body 2 about the right rear wheel rotation axis P42 extending parallel to the road surface. The left rear wheel 41 and the right rear wheel 42 are located side by side in the left-right direction.
車体本体2は、左右一対の後車輪4を支持する車体フレーム21と、リンク機構5を支持するリンク機構支持部22とを有する。
The vehicle body body 2 has a vehicle body frame 21 that supports a pair of left and right rear wheels 4, and a link mechanism support portion 22 that supports the link mechanism 5.
車体フレーム21は、リンク機構支持部22及び左右一対の後車輪4を支持する。車体フレーム21は、例えば、パイプ状の部材によって構成される。車体フレーム21は、パネル状の部材によって構成されてもよい。
The vehicle body frame 21 supports the link mechanism support portion 22 and the pair of left and right rear wheels 4. The body frame 21 is composed of, for example, a pipe-shaped member. The vehicle body frame 21 may be composed of panel-shaped members.
リンク機構支持部22は、車体フレーム21の前に位置する。図2に示すように、リンク機構支持部22は、上下方向に延びる部材である。本実施形態では、リンク機構支持部22は、例えば、パイプ状の部材によって構成される。リンク機構支持部22は、板状の部材によって構成されてもよい。
The link mechanism support portion 22 is located in front of the vehicle body frame 21. As shown in FIG. 2, the link mechanism support portion 22 is a member extending in the vertical direction. In the present embodiment, the link mechanism support portion 22 is composed of, for example, a pipe-shaped member. The link mechanism support portion 22 may be formed of a plate-shaped member.
リンク機構支持部22は、車体フレーム21の前端部に接続されている。これにより、リンク機構支持部22は、車体フレーム21の前端部に支持されている。なお、リンク機構支持部22は、車体フレーム21に対してどの位置で接続されていてもよい。
The link mechanism support portion 22 is connected to the front end portion of the vehicle body frame 21. As a result, the link mechanism support portion 22 is supported by the front end portion of the vehicle body frame 21. The link mechanism support portion 22 may be connected to the vehicle body frame 21 at any position.
後述するように、リンク機構支持部22は、リンク機構5の上クロス部材51を、第1中央揺動軸線UIを中心として揺動可能に支持し、且つ、下クロス部材52を、第2中央揺動軸線DIを中心として揺動可能に支持する。
As will be described later, the link mechanism support portion 22 supports the upper cross member 51 of the link mechanism 5 so as to be swingable around the first central swing axis UI, and the lower cross member 52 is supported by the second center. It is supported so that it can swing around the swing axis DI.
一対の操作ハンドル60は、後述のリンク機構5に接続されている。一対の操作ハンドル60は、車両1を前から見て、リンク機構5から上に向かって延びている。一対の操作ハンドル60は、左操作ハンドル61と、右操作ハンドル62とを含む。
The pair of operation handles 60 are connected to the link mechanism 5 described later. The pair of operation handles 60 extend upward from the link mechanism 5 when the vehicle 1 is viewed from the front. The pair of operation handles 60 includes a left operation handle 61 and a right operation handle 62.
左操作ハンドル61は、左操作ハンドルバー61aと、左把持部61bとを有する。本実施形態では、左操作ハンドルバー61a及び左把持部61bは、一体に構成されている。
The left operation handle 61 has a left operation handle bar 61a and a left grip portion 61b. In the present embodiment, the left operation handlebar 61a and the left grip portion 61b are integrally configured.
左操作ハンドルバー61aは、後述のリンク機構5における左サイド部材53の上端部から、左サイド部材53と連続するように左サイド部材53が延びる方向と同じ方向(延伸方向)に延びている。すなわち、左操作ハンドルバー61aは、左サイド部材53の上端部から上方向に向かって延びている。左操作ハンドルバー61aの下端部は、左サイド部材53の上端部に接続されている。なお、左操作ハンドルバーは、左サイド部材の上端部から、左サイド部材が延びる方向とは異なる方向に延びていてもよい。また、左操作ハンドルバー及び左サイド部材は、一体の部材であってもよい。
The left operation handlebar 61a extends from the upper end of the left side member 53 in the link mechanism 5 described later in the same direction (extension direction) as the direction in which the left side member 53 extends so as to be continuous with the left side member 53. That is, the left operation handlebar 61a extends upward from the upper end portion of the left side member 53. The lower end of the left operation handlebar 61a is connected to the upper end of the left side member 53. The left operation handlebar may extend from the upper end of the left side member in a direction different from the direction in which the left side member extends. Further, the left operation handlebar and the left side member may be an integral member.
左把持部61bは、左操作ハンドルバー61aの上部から、左操作ハンドルバー61aの延伸方向と交差する方向に延びている。左把持部61bは、操縦者の左手によって把持される。
The left grip portion 61b extends from the upper part of the left operation handlebar 61a in a direction intersecting the extending direction of the left operation handlebar 61a. The left grip portion 61b is gripped by the operator's left hand.
右操作ハンドル62は、右操作ハンドルバー62aと、右把持部62bとを有する。本実施形態では、右操作ハンドルバー62a及び右把持部62bは、一体に構成されている。
The right operation handle 62 has a right operation handle bar 62a and a right grip portion 62b. In the present embodiment, the right operation handlebar 62a and the right grip portion 62b are integrally configured.
右操作ハンドルバー62aは、後述のリンク機構5における右サイド部材54の上端部から、右サイド部材54と連続するように右サイド部材54が延びる方向と同じ方向(延伸方向)に延びている。すなわち、右操作ハンドルバー62aは、右サイド部材54の上端部から上方向に向かって延びている。右操作ハンドルバー62aの下端部は、右サイド部材54の上端部に接続されている。なお、右操作ハンドルバーは、右サイド部材の上端部から、右サイド部材が延びる方向とは異なる方向に延びていてもよい。また、右操作ハンドルバー及び右サイド部材は、一体の部材であってもよい。
The right operation handlebar 62a extends from the upper end of the right side member 54 in the link mechanism 5 described later in the same direction (extension direction) as the direction in which the right side member 54 extends so as to be continuous with the right side member 54. That is, the right operation handlebar 62a extends upward from the upper end portion of the right side member 54. The lower end of the right operation handlebar 62a is connected to the upper end of the right side member 54. The right operation handlebar may extend from the upper end of the right side member in a direction different from the direction in which the right side member extends. Further, the right operation handlebar and the right side member may be an integral member.
右把持部62bは、右操作ハンドルバー62aの上部から、右操作ハンドルバー62aの延伸方向と交差する方向に延びている。右把持部62bは、操縦者の右手によって把持される。
The right grip portion 62b extends from the upper part of the right operation handlebar 62a in a direction intersecting the extending direction of the right operation handlebar 62a. The right grip portion 62b is gripped by the operator's right hand.
リンク機構5は、車体本体2の前部に位置するリンク機構支持部22に、車両1を前から見て上下方向に揺動可能に支持されている。リンク機構5は、平行四節リンク(パラレログラムリンクとも呼ばれる)方式のリンク機構である。リンク機構5は、左右一対の前車輪3よりも上に位置する。
The link mechanism 5 is supported by a link mechanism support portion 22 located at the front portion of the vehicle body body 2 so as to be swingable in the vertical direction when the vehicle 1 is viewed from the front. The link mechanism 5 is a parallel four-node link (also called a parallelogram link) type link mechanism. The link mechanism 5 is located above the pair of left and right front wheels 3.
リンク機構5は、上クロス部材51(第1揺動レバー)と、下クロス部材52(第2揺動レバー)と、左サイド部材53(左前車輪支持体)と、右サイド部材54(右前車輪支持体)とを含む。
The link mechanism 5 includes an upper cross member 51 (first swing lever), a lower cross member 52 (second swing lever), a left side member 53 (left front wheel support), and a right side member 54 (right front wheel). Support) and included.
上クロス部材51は、左右方向に延びている。上クロス部材51の左右方向の中央部は、リンク機構支持部22に対し、第1中央揺動軸線UI回りに揺動可能に支持されている。第1中央揺動軸線UIは、前後方向に延びている。
The upper cross member 51 extends in the left-right direction. The central portion of the upper cross member 51 in the left-right direction is swingably supported by the link mechanism support portion 22 around the first central swing axis UI. The first central swing axis UI extends in the front-rear direction.
上クロス部材51は、リンク機構支持部22よりも前に位置していてもよいし、リンク機構支持部22よりも後ろに位置していてもよい。上クロス部材51は、リンク機構支持部22に対して前及び後ろの両方に位置していてもよい。
The upper cross member 51 may be located in front of the link mechanism support portion 22 or may be located behind the link mechanism support portion 22. The upper cross member 51 may be located both in front of and behind the link mechanism support portion 22.
下クロス部材52は、左右方向に延びている。下クロス部材52は、上クロス部材51よりも下に位置する。下クロス部材52の左右方向の中央部は、リンク機構支持部22に対し、第2中央揺動軸線DI回りに揺動可能に支持されている。第2中央揺動軸線DIは、前後方向に延びている。
The lower cross member 52 extends in the left-right direction. The lower cross member 52 is located below the upper cross member 51. The central portion of the lower cross member 52 in the left-right direction is swingably supported by the link mechanism support portion 22 around the second central swing axis DI. The second central swing axis DI extends in the front-rear direction.
下クロス部材52は、リンク機構支持部22よりも前に位置していてもよいし、リンク機構支持部22よりも後ろに位置していてもよい。下クロス部材52は、リンク機構支持部22に対して前及び後ろの両方に位置していてもよい。
The lower cross member 52 may be located in front of the link mechanism support portion 22 or may be located behind the link mechanism support portion 22. The lower cross member 52 may be located both in front of and behind the link mechanism support portion 22.
左サイド部材53は、リンク機構支持部22の左に位置する。左サイド部材53は、リンク機構支持部22が延びる方向に延びている。すなわち、左サイド部材53は、リンク機構支持部22に対して平行である。本実施形態では、左サイド部材53は、上下方向に延びている。
The left side member 53 is located to the left of the link mechanism support portion 22. The left side member 53 extends in the direction in which the link mechanism support portion 22 extends. That is, the left side member 53 is parallel to the link mechanism support portion 22. In this embodiment, the left side member 53 extends in the vertical direction.
なお、平行とは、部材同士が完全に平行な場合だけでなく、部材同士がリンク機構5の動作に影響を与えない程度に傾いている状態も含む。
Note that the term "parallel" includes not only the case where the members are completely parallel to each other but also the state where the members are tilted to the extent that they do not affect the operation of the link mechanism 5.
右サイド部材54は、リンク機構支持部22の右に位置する。右サイド部材54は、リンク機構支持部22が延びる方向に延びている。すなわち、右サイド部材54は、リンク機構支持部22に対して平行である。本実施形態では、右サイド部材54は、上下方向に延びている。
The right side member 54 is located to the right of the link mechanism support portion 22. The right side member 54 extends in the direction in which the link mechanism support portion 22 extends. That is, the right side member 54 is parallel to the link mechanism support portion 22. In the present embodiment, the right side member 54 extends in the vertical direction.
以上のような左サイド部材53及び右サイド部材54の構成により、左サイド部材53、リンク機構支持部22及び右サイド部材54は、互いに平行である。
Due to the configuration of the left side member 53 and the right side member 54 as described above, the left side member 53, the link mechanism support portion 22, and the right side member 54 are parallel to each other.
また、上述のような左サイド部材53の構成により、左サイド部材53の上端部に接続されている左操作ハンドルバー61aは、上下方向のみに移動する。よって、左操作ハンドルバー61aは、車体本体2に対して直線的に移動する。すなわち、左操作ハンドル61は、車体本体2に対して直線的に変位するように設けられている。
Further, due to the configuration of the left side member 53 as described above, the left operation handlebar 61a connected to the upper end portion of the left side member 53 moves only in the vertical direction. Therefore, the left operation handlebar 61a moves linearly with respect to the vehicle body body 2. That is, the left operation handle 61 is provided so as to be linearly displaced with respect to the vehicle body body 2.
同様に、上述のような右サイド部材54の構成により、右サイド部材54の上端部に接続されている右操作ハンドルバー62aは、上下方向のみに移動する。よって、右操作ハンドルバー62aは、車体本体2に対して直線的に移動する。すなわち、右操作ハンドル62は、車体本体2に対して直線的に変位するように設けられている。
Similarly, with the configuration of the right side member 54 as described above, the right operation handlebar 62a connected to the upper end of the right side member 54 moves only in the vertical direction. Therefore, the right operation handlebar 62a moves linearly with respect to the vehicle body body 2. That is, the right operation handle 62 is provided so as to be linearly displaced with respect to the vehicle body body 2.
上クロス部材51の左端部は、左サイド部材53に対し、第1左揺動軸線UL回りに揺動可能に接続されている。第1左揺動軸線ULは、前後方向に延びている。第1左揺動軸線ULは、第1中央揺動軸線UIに対して平行である。
The left end of the upper cross member 51 is swingably connected to the left side member 53 around the first left swing axis UL. The first left swing axis UL extends in the front-rear direction. The first left swing axis UL is parallel to the first center swing axis UI.
下クロス部材52の左端部は、左サイド部材53に対し、第2左揺動軸線DL回りに揺動可能に接続されている。第2左揺動軸線DLは、前後方向に延びている。第2左揺動軸線DLは、第2中央揺動軸線DIに対して平行である。
The left end of the lower cross member 52 is swingably connected to the left side member 53 around the second left swing axis DL. The second left swing axis DL extends in the front-rear direction. The second left swing axis DL is parallel to the second center swing axis DI.
上クロス部材51の右端部は、右サイド部材54に対し、第1右揺動軸線UR回りに揺動可能に接続されている。第1右揺動軸線URは、前後方向に延びている。第1右揺動軸線URは、第1中央揺動軸線UIに対して平行である。
The right end of the upper cross member 51 is swingably connected to the right side member 54 around the first right swing axis UR. The first right swing axis UR extends in the front-rear direction. The first right swing axis UR is parallel to the first center swing axis UI.
下クロス部材52の右端部は、右サイド部材54に対し、第2右揺動軸線DR回りに揺動可能に接続されている。第2右揺動軸線DRは、前後方向に延びている。第2右揺動軸線DRは、第2中央揺動軸線DIに対して平行である。
The right end of the lower cross member 52 is swingably connected to the right side member 54 around the second right swing axis DR. The second right swing axis DR extends in the front-rear direction. The second right swing axis DR is parallel to the second center swing axis DI.
第1中央揺動軸線UI、第1左揺動軸線UL、第1右揺動軸線UR、第2中央揺動軸線DI、第2左揺動軸線DL及び第2右揺動軸線DRは、互いに平行に延びている。第1中央揺動軸線UI、第1左揺動軸線UL、第1右揺動軸線UR、第2中央揺動軸線DI、第2左揺動軸線DL及び第2右揺動軸線DRは、左前車輪31及び右前車輪32よりも上に位置する。
The first central rocking axis UI, the first left rocking axis UL, the first right rocking axis UR, the second central rocking axis DI, the second left rocking axis DL, and the second right rocking axis DR are mutually exclusive. It extends in parallel. The first center swing axis UI, the first left swing axis UL, the first right swing axis UR, the second center swing axis DI, the second left swing axis DL, and the second right swing axis DR are left front. It is located above the wheel 31 and the right front wheel 32.
上クロス部材51、下クロス部材52、左サイド部材53及び右サイド部材54は、上クロス部材51と下クロス部材52とが相互に平行な姿勢を保ち、且つ、左サイド部材53と右サイド部材54とが相互に平行な姿勢を保つように、車体本体2に支持されている。すなわち、上述のように、上クロス部材51及び下クロス部材52がリンク機構支持部22に対して回転可能に支持されている。また、左サイド部材53及び右サイド部材54は、車体本体2に対し、上下方向に移動する。
The upper cross member 51, the lower cross member 52, the left side member 53, and the right side member 54 maintain a posture in which the upper cross member 51 and the lower cross member 52 are parallel to each other, and the left side member 53 and the right side member 53. It is supported by the vehicle body 2 so that the 54 and the 54 maintain a posture parallel to each other. That is, as described above, the upper cross member 51 and the lower cross member 52 are rotatably supported by the link mechanism support portion 22. Further, the left side member 53 and the right side member 54 move in the vertical direction with respect to the vehicle body body 2.
リンク機構5の形状は、左前車輪31及び右前車輪32の上下方向への移動によって、変化する。すなわち、リンク機構5は、リンク機構5の作動によって、形状が変化する。図2に示すように、リンク機構5が作動していない場合には、車両1を前から見て、リンク機構5は長方形状である。一方、図3及び図4に示すように、リンク機構5が作動している場合には、車両1を前から見て、リンク機構5は平行四辺形状である。すなわち、リンク機構5の作動によって、車両1を前から見たときのリンク機構5の形状は変化する。なお、図11は、図1及び図3を並べて示す図である。
The shape of the link mechanism 5 changes as the left front wheel 31 and the right front wheel 32 move in the vertical direction. That is, the shape of the link mechanism 5 changes depending on the operation of the link mechanism 5. As shown in FIG. 2, when the link mechanism 5 is not operating, the link mechanism 5 has a rectangular shape when the vehicle 1 is viewed from the front. On the other hand, as shown in FIGS. 3 and 4, when the link mechanism 5 is operating, the link mechanism 5 has a parallel quadrilateral shape when the vehicle 1 is viewed from the front. That is, the operation of the link mechanism 5 changes the shape of the link mechanism 5 when the vehicle 1 is viewed from the front. Note that FIG. 11 is a diagram showing FIGS. 1 and 3 side by side.
リンク機構5の変形は、車両1を前から見て、リンク機構支持部22に対し、上クロス部材51及び下クロス部材52がそれぞれ第1中央揺動軸線UI及び第2中央揺動軸線DIを中心として回転し、且つ、上クロス部材51、下クロス部材52、左サイド部材53及び右サイド部材54がそれぞれ第1左揺動軸線UL、第1右揺動軸線UR、第2左揺動軸線DL及び第2右揺動軸線DRを中心として回転することにより、生じる。
The modification of the link mechanism 5 is that when the vehicle 1 is viewed from the front, the upper cross member 51 and the lower cross member 52 provide the first central swing axis UI and the second central swing axis DI with respect to the link mechanism support portion 22, respectively. It rotates as a center, and the upper cross member 51, the lower cross member 52, the left side member 53, and the right side member 54 are the first left swing axis UL, the first right swing axis UR, and the second left swing axis, respectively. It is generated by rotating around the DL and the second right swing axis DR.
例えば、図3に示すように、左前車輪31が右前車輪32よりも上に位置する場合、左前車輪31を支持する左サイド部材53は、リンク機構支持部22に対して上に移動する。このように左サイド部材53が上に移動すると、上クロス部材51は、第1中央揺動軸線UIを中心として、リンク機構支持部22に対して、車両1を前から見て反時計回りに回転する。このとき、下クロス部材52も、第2中央揺動軸線DIを中心として、リンク機構支持部22に対して、車両1を前から見て反時計回りに回転する。
For example, as shown in FIG. 3, when the left front wheel 31 is located above the right front wheel 32, the left side member 53 that supports the left front wheel 31 moves upward with respect to the link mechanism support portion 22. When the left side member 53 moves upward in this way, the upper cross member 51 rotates counterclockwise when the vehicle 1 is viewed from the front with respect to the link mechanism support portion 22 with the first central swing axis UI as the center. Rotate. At this time, the lower cross member 52 also rotates counterclockwise when the vehicle 1 is viewed from the front with respect to the link mechanism support portion 22 about the second central swing axis DI.
上述のように上クロス部材51及び下クロス部材52が回転する際にも、上クロス部材51と下クロス部材52とは平行状態を維持し、且つ、左サイド部材53及び右サイド部材54も平行状態を維持する。これにより、リンク機構5の形状は、長方形から平行四辺形に変化する。
Even when the upper cross member 51 and the lower cross member 52 rotate as described above, the upper cross member 51 and the lower cross member 52 remain parallel to each other, and the left side member 53 and the right side member 54 are also parallel to each other. Maintain the state. As a result, the shape of the link mechanism 5 changes from a rectangle to a parallelogram.
同様に、例えば、図4に示すように、右前車輪32が左前車輪31よりも上に位置する場合、右前車輪32を支持する右サイド部材54は、リンク機構支持部22に対して上に移動する。このように右サイド部材54が上に移動すると、上クロス部材51は、第1中央揺動軸線UIを中心として、リンク機構支持部22に対して、車両1を前から見て時計回りに回転する。このとき、下クロス部材52も、第2中央揺動軸線DIを中心として、リンク機構支持部22に対して、車両1を前から見て時計回りに回転する。
Similarly, for example, as shown in FIG. 4, when the right front wheel 32 is located above the left front wheel 31, the right side member 54 that supports the right front wheel 32 moves upward with respect to the link mechanism support portion 22. To do. When the right side member 54 moves upward in this way, the upper cross member 51 rotates clockwise with respect to the link mechanism support portion 22 with respect to the link mechanism support portion 22 with the first central swing axis UI as the center. To do. At this time, the lower cross member 52 also rotates clockwise with respect to the link mechanism support portion 22 with the second central swing axis DI as the center when the vehicle 1 is viewed from the front.
上述のように上クロス部材51及び下クロス部材52が回転する際にも、上クロス部材51と下クロス部材52とは平行状態を維持し、且つ、左サイド部材53及び右サイド部材54も平行状態を維持する。これにより、リンク機構5の形状は、長方形から平行四辺形に変化する。
Even when the upper cross member 51 and the lower cross member 52 rotate as described above, the upper cross member 51 and the lower cross member 52 remain parallel to each other, and the left side member 53 and the right side member 54 are also parallel to each other. Maintain the state. As a result, the shape of the link mechanism 5 changes from a rectangle to a parallelogram.
上述のようなリンク機構5の作動時において、左前車輪31及び右前車輪32は、左右方向に傾くことなく、上下方向の相対位置が変化する。左前車輪31及び右前車輪32は、リンク機構5の作動時にも、車体本体2に対して直立状態で維持される。
When the link mechanism 5 is operated as described above, the left front wheel 31 and the right front wheel 32 change their relative positions in the vertical direction without tilting in the left-right direction. The left front wheel 31 and the right front wheel 32 are maintained in an upright state with respect to the vehicle body body 2 even when the link mechanism 5 is activated.
なお、左後車輪41及び右後車輪42も、リンク機構5の作動時に、車体本体2に対して直立状態で維持される。
The left rear wheel 41 and the right rear wheel 42 are also maintained in an upright state with respect to the vehicle body body 2 when the link mechanism 5 is operated.
本実施形態では、リンク機構5の左サイド部材53と前車輪調整機構6の左操作ハンドルバー61aとが接続されている。よって、操縦者が左操作ハンドル61を手で上(図3に白抜き矢印で示す方向)に持ち上げることで、リンク機構5の上クロス部材51及び下クロス部材52をリンク機構支持部22に対して揺動させることができる。これにより、左操作ハンドル61の操作によって、左サイド部材53を介して左前車輪31を上に移動させることができる。したがって、左前車輪31が例えば段差Sに接触する際に、図5に示すように左操作ハンドル61を上に持ち上げることにより、左前車輪31が段差Sに接触した際に受ける力を低減できる。
In this embodiment, the left side member 53 of the link mechanism 5 and the left operation handlebar 61a of the front wheel adjustment mechanism 6 are connected. Therefore, when the operator manually lifts the left operation handle 61 upward (in the direction indicated by the white arrow in FIG. 3), the upper cross member 51 and the lower cross member 52 of the link mechanism 5 are lifted with respect to the link mechanism support portion 22. Can be rocked. As a result, the left front wheel 31 can be moved upward via the left side member 53 by operating the left operation handle 61. Therefore, when the left front wheel 31 comes into contact with the step S, for example, by lifting the left operation handle 61 upward as shown in FIG. 5, the force received when the left front wheel 31 comes into contact with the step S can be reduced.
同様に、本実施形態では、リンク機構5の右サイド部材54と前車輪調整機構6の右操作ハンドルバー62aとが接続されている。よって、操縦者が右操作ハンドル62を手で上(図4に白抜き矢印で示す方向)に持ち上げることで、リンク機構5の上クロス部材51及び下クロス部材52をリンク機構支持部22に対して揺動させることができる。これにより、右操作ハンドル62の操作によって、右サイド部材54を介して右前車輪32を上に移動させることができる。したがって、右前車輪32が例えば段差Sに接触する際に、右操作ハンドル62を上に持ち上げることにより、右前車輪32が段差Sに接触した際に受ける力を低減できる。
Similarly, in the present embodiment, the right side member 54 of the link mechanism 5 and the right operation handlebar 62a of the front wheel adjustment mechanism 6 are connected. Therefore, when the operator manually lifts the right operation handle 62 upward (in the direction indicated by the white arrow in FIG. 4), the upper cross member 51 and the lower cross member 52 of the link mechanism 5 are lifted with respect to the link mechanism support portion 22. Can be rocked. As a result, the right front wheel 32 can be moved upward via the right side member 54 by operating the right operation handle 62. Therefore, when the right front wheel 32 comes into contact with the step S, for example, by lifting the right operation handle 62 upward, the force received when the right front wheel 32 comes into contact with the step S can be reduced.
このように、本実施形態の車両1では、操縦者が一対の操作ハンドル60を手で操作することで、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を前車輪調整機構6によって調整できる。したがって、左前車輪31または右前車輪32が段差に接触した際に、該接触した車輪は、前記段差を容易に乗り越えることができる。
As described above, in the vehicle 1 of the present embodiment, the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operator manually operating the pair of operation handles 60. Can be adjusted by the front wheel adjustment mechanism 6. Therefore, when the left front wheel 31 or the right front wheel 32 comes into contact with the step, the contacted wheel can easily get over the step.
以上より、本実施形態の構成を車両に適用することにより、利用可能な環境を拡大可能な車両1が得られる。
From the above, by applying the configuration of this embodiment to a vehicle, a vehicle 1 capable of expanding the usable environment can be obtained.
また、本実施形態では、左操作ハンドル61は、車体本体2に対して直線的に変位するように設けられている。右操作ハンドル62は、車体本体2に対して直線的に変位するように設けられている。これにより、車両1の操縦者が左操作ハンドル61または右操作ハンドル62を手で直線的に変位させる操作を行うことで、リンク機構5の上クロス部材51及び下クロス部材52を車体本体2に対して揺動させることができる。よって、車両1の操縦者が左操作ハンドル61または右操作ハンドル62を手で直線的に変位させる操作によって、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を調整することができる。
Further, in the present embodiment, the left operation handle 61 is provided so as to be linearly displaced with respect to the vehicle body body 2. The right operation handle 62 is provided so as to be linearly displaced with respect to the vehicle body body 2. As a result, the operator of the vehicle 1 manually displaces the left operation handle 61 or the right operation handle 62, so that the upper cross member 51 and the lower cross member 52 of the link mechanism 5 are attached to the vehicle body body 2. On the other hand, it can be swung. Therefore, the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operation in which the operator of the vehicle 1 linearly displaces the left operation handle 61 or the right operation handle 62 by hand. Can be adjusted.
[実施形態2]
図6は、実施形態2に係る車両101の概略構成を示す斜視図である。この車両101では、リンク機構105の左サイド部材153及び右サイド部材154は、それぞれ、上部が下部よりも後ろに位置するように上下方向且つ前後方向に延びている点で、実施形態1の車両1とは異なる。以下では、実施形態1と同様の構成には同一の符号を付して説明を省略し、実施形態1と異なる構成についてのみ説明する。 [Embodiment 2]
FIG. 6 is a perspective view showing a schematic configuration of thevehicle 101 according to the second embodiment. In the vehicle 101, the left side member 153 and the right side member 154 of the link mechanism 105 extend in the vertical direction and the front-rear direction so that the upper portion is located behind the lower portion, respectively. Different from 1. Hereinafter, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted, and only the configurations different from those in the first embodiment will be described.
図6は、実施形態2に係る車両101の概略構成を示す斜視図である。この車両101では、リンク機構105の左サイド部材153及び右サイド部材154は、それぞれ、上部が下部よりも後ろに位置するように上下方向且つ前後方向に延びている点で、実施形態1の車両1とは異なる。以下では、実施形態1と同様の構成には同一の符号を付して説明を省略し、実施形態1と異なる構成についてのみ説明する。 [Embodiment 2]
FIG. 6 is a perspective view showing a schematic configuration of the
車両101は、車体本体102と、左右一対の前車輪3と、左右一対の後車輪4と、リンク機構105と、前車輪調整機構106と、シート107とを有する。前車輪調整機構106は、一対の操作ハンドル160を含む。
The vehicle 101 has a vehicle body body 102, a pair of left and right front wheels 3, a pair of left and right rear wheels 4, a link mechanism 105, a front wheel adjustment mechanism 106, and a seat 107. The front wheel adjustment mechanism 106 includes a pair of operating handles 160.
シート107は、車体本体102によって支持されている。シート107は、例えば、乳幼児等が着座可能なバケットタイプのシートである。車両101は、例えば、乳幼児等を載せるためのベビーカーである。なお、シートは、バケットタイプ以外の形状であってもよい。
The seat 107 is supported by the vehicle body body 102. The seat 107 is, for example, a bucket type seat on which an infant or the like can be seated. The vehicle 101 is, for example, a stroller for carrying an infant or the like. The seat may have a shape other than the bucket type.
車体本体102は、左右一対の後車輪4を支持する車体フレーム121と、リンク機構105を支持するリンク機構支持部122とを有する。
The vehicle body body 102 has a vehicle body frame 121 that supports a pair of left and right rear wheels 4, and a link mechanism support portion 122 that supports the link mechanism 105.
車体フレーム121は、リンク機構支持部122及び左右一対の後車輪4を支持する。車体フレーム121は、例えば、パイプ状の部材によって構成される。
The vehicle body frame 121 supports the link mechanism support portion 122 and the pair of left and right rear wheels 4. The body frame 121 is composed of, for example, a pipe-shaped member.
車体フレーム121は、左メインフレーム121aと、右メインフレーム121bと、下接続フレーム121cと、上接続フレーム121eとを有する。
The body frame 121 includes a left main frame 121a, a right main frame 121b, a lower connecting frame 121c, and an upper connecting frame 121e.
左メインフレーム121aは、車両101を前から見て上下方向に延びる部材である。左メインフレーム121aは、下端部で、左後車輪41を、左後車輪回転軸線P41を中心として回転可能に支持する。右メインフレーム121bは、車両101を前から見て上下方向に延びる部材である。右メインフレーム121bは、下端部で、右後車輪42を、右後車輪回転軸線P42を中心として回転可能に支持する。
The left main frame 121a is a member that extends in the vertical direction when the vehicle 101 is viewed from the front. The left main frame 121a rotatably supports the left rear wheel 41 at the lower end portion about the left rear wheel rotation axis P41. The right main frame 121b is a member that extends in the vertical direction when the vehicle 101 is viewed from the front. The right main frame 121b rotatably supports the right rear wheel 42 at the lower end portion about the right rear wheel rotation axis P42.
下接続フレーム121c及び上接続フレーム121eは、それぞれ、左右方向に延びる部材である。下接続フレーム121c及び上接続フレーム121eは、それぞれ、左メインフレーム121aと右メインフレーム121bとを左右方向に接続する。上接続フレーム121eは、下接続フレーム121cよりも上に位置する。下接続フレーム121cは、補強フレーム121dによって、リンク機構支持部122の下部に接続されている。上接続フレーム121eは、リンク機構支持部122の上端部を支持する。
The lower connecting frame 121c and the upper connecting frame 121e are members extending in the left-right direction, respectively. The lower connection frame 121c and the upper connection frame 121e connect the left main frame 121a and the right main frame 121b in the left-right direction, respectively. The upper connecting frame 121e is located above the lower connecting frame 121c. The lower connecting frame 121c is connected to the lower part of the link mechanism support portion 122 by the reinforcing frame 121d. The upper connection frame 121e supports the upper end of the link mechanism support portion 122.
リンク機構支持部122は、車体フレーム121の前に位置する。リンク機構支持部122は、上下方向に延びる部材である。本実施形態では、リンク機構支持部122は、例えば、パイプ状の部材によって構成される。
The link mechanism support portion 122 is located in front of the vehicle body frame 121. The link mechanism support portion 122 is a member extending in the vertical direction. In the present embodiment, the link mechanism support portion 122 is composed of, for example, a pipe-shaped member.
後述するように、リンク機構支持部122は、リンク機構105の上クロス部材151を、第1中央揺動軸線UIを中心として揺動可能に支持し、且つ、下クロス部材152を、第2中央揺動軸線DIを中心として揺動可能に支持する。
As will be described later, the link mechanism support portion 122 supports the upper cross member 151 of the link mechanism 105 so as to be swingable around the first central swing axis UI, and the lower cross member 152 is supported by the second center. It is supported so that it can swing around the swing axis DI.
リンク機構105(前車輪変位リンク機構)は、上クロス部材151(第1揺動レバー)と、下クロス部材152(第2揺動レバー)と、左サイド部材153(左前車輪支持体)と、右サイド部材154(右前車輪支持体)とを含む。実施形態1と同様、リンク機構105は、平行四節リンク(パラレログラムリンクとも呼ばれる)方式のリンク機構である。リンク機構105は、左右一対の前車輪3よりも上に位置する。
The link mechanism 105 (front wheel displacement link mechanism) includes an upper cross member 151 (first swing lever), a lower cross member 152 (second swing lever), and a left side member 153 (left front wheel support). Includes right side member 154 (right front wheel support). Similar to the first embodiment, the link mechanism 105 is a parallel four-node link (also referred to as a parallelogram link) type link mechanism. The link mechanism 105 is located above the pair of left and right front wheels 3.
リンク機構105は、実施形態1のリンク機構5と配置以外は同様の構成を有する。そのため、リンク機構105の詳しい構成の説明は省略する。
The link mechanism 105 has the same configuration as the link mechanism 5 of the first embodiment except for the arrangement. Therefore, the detailed description of the configuration of the link mechanism 105 will be omitted.
リンク機構支持部122は、上部が下部よりも後ろに位置するように上下方向且つ前後方向に延びている。左サイド部材153及び右サイド部材154も、それぞれ、上部が下部よりも後ろに位置するように上下方向且つ前後方向に延びている。すなわち、本実施形態でも、実施形態1と同様、左サイド部材153、右サイド部材154及びリンク機構支持部122は、平行である。
The link mechanism support portion 122 extends in the vertical and front-rear directions so that the upper portion is located behind the lower portion. The left side member 153 and the right side member 154 also extend in the vertical direction and the front-rear direction so that the upper portion is located behind the lower portion, respectively. That is, also in the present embodiment, as in the first embodiment, the left side member 153, the right side member 154, and the link mechanism support portion 122 are parallel to each other.
上クロス部材151は、左右方向に延びている。上クロス部材151の左右方向の中央部は、リンク機構支持部122に対し、中立位置に戻るための付勢部材が設けられることなく、第1中央揺動軸線UI回りに揺動可能に支持されている。第1中央揺動軸線UIは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。
The upper cross member 151 extends in the left-right direction. The central portion of the upper cross member 151 in the left-right direction is swayably supported around the first central swing axis UI without being provided with an urging member for returning to the neutral position with respect to the link mechanism support portion 122. ing. The first central swing axis UI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
下クロス部材152は、左右方向に延びている。下クロス部材152の左右方向の中央部は、リンク機構支持部122に対し、中立位置に戻るための付勢部材が設けられることなく、第2中央揺動軸線DI回りに揺動可能に支持されている。第2中央揺動軸線DIは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。
The lower cross member 152 extends in the left-right direction. The central portion of the lower cross member 152 in the left-right direction is supported by the link mechanism support portion 122 so as to be swingable around the second central swing axis DI without being provided with an urging member for returning to the neutral position. ing. The second central swing axis DI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
上クロス部材151の左端部は、左サイド部材153に対し、第1左揺動軸線UL回りに揺動可能に接続されている。第1左揺動軸線ULは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第1左揺動軸線ULは、第1中央揺動軸線UIに対して平行である。
The left end of the upper cross member 151 is swingably connected to the left side member 153 around the first left swing axis UL. The first left swing axis UL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The first left swing axis UL is parallel to the first center swing axis UI.
下クロス部材152の左端部は、左サイド部材153に対し、第2左揺動軸線DL回りに揺動可能に接続されている。第2左揺動軸線DLは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第2左揺動軸線DLは、第2中央揺動軸線DIに対して平行である。
The left end of the lower cross member 152 is swingably connected to the left side member 153 around the second left swing axis DL. The second left swing axis DL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The second left swing axis DL is parallel to the second center swing axis DI.
上クロス部材151の右端部は、右サイド部材154に対し、第1右揺動軸線UR回りに揺動可能に接続されている。第1右揺動軸線URは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第1右揺動軸線URは、第1中央揺動軸線UIに対して平行である。
The right end of the upper cross member 151 is swingably connected to the right side member 154 around the first right swing axis UR. The first right swing axis UR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The first right swing axis UR is parallel to the first center swing axis UI.
下クロス部材152の右端部は、右サイド部材154に対し、第2右揺動軸線DR回りに揺動可能に接続されている。第2右揺動軸線DRは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第2右揺動軸線DRは、第2中央揺動軸線DIに対して平行である。
The right end of the lower cross member 152 is swingably connected to the right side member 154 around the second right swing axis DR. The second right swing axis DR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The second right swing axis DR is parallel to the second center swing axis DI.
実施形態1と同様、第1中央揺動軸線UI、第1左揺動軸線UL、第1右揺動軸線UR、第2中央揺動軸線DI、第2左揺動軸線DL及び第2右揺動軸線DRは、互いに平行に延びている。第1中央揺動軸線UI、第1左揺動軸線UL、第1右揺動軸線UR、第2中央揺動軸線DI、第2左揺動軸線DL及び第2右揺動軸線DRは、左前車輪31及び右前車輪32よりも上に位置する。
Similar to the first embodiment, the first central swing axis UI, the first left swing axis UL, the first right swing axis UR, the second central swing axis DI, the second left swing axis DL, and the second right swing. The driving axis DRs extend parallel to each other. The first center swing axis UI, the first left swing axis UL, the first right swing axis UR, the second center swing axis DI, the second left swing axis DL, and the second right swing axis DR are left front. It is located above the wheel 31 and the right front wheel 32.
実施形態1と同様、上クロス部材151、下クロス部材152、左サイド部材153及び右サイド部材154は、上クロス部材151と下クロス部材152とが相互に平行な姿勢を保ち、且つ、左サイド部材153と右サイド部材154とが相互に平行な姿勢を保つように、車体本体102に支持されている。すなわち、上述のように、上クロス部材151及び下クロス部材152がリンク機構支持部122に対して回転可能に支持されている。また、左サイド部材153及び右サイド部材154は、車体本体102に対し、車両101を前から見て上下方向に移動する。
Similar to the first embodiment, in the upper cross member 151, the lower cross member 152, the left side member 153 and the right side member 154, the upper cross member 151 and the lower cross member 152 maintain a posture parallel to each other and the left side. The member 153 and the right side member 154 are supported by the vehicle body body 102 so as to maintain a posture parallel to each other. That is, as described above, the upper cross member 151 and the lower cross member 152 are rotatably supported by the link mechanism support portion 122. Further, the left side member 153 and the right side member 154 move in the vertical direction with respect to the vehicle body body 102 when the vehicle 101 is viewed from the front.
リンク機構105の形状及び動作は、実施形態1のリンク機構5の形状及び動作と同様である。よって、リンク機構105の形状及び動作に関する詳しい説明は、省略する。
The shape and operation of the link mechanism 105 is the same as the shape and operation of the link mechanism 5 of the first embodiment. Therefore, detailed description of the shape and operation of the link mechanism 105 will be omitted.
左前車輪31は、リンク機構105の左サイド部材153の下端部に接続された左前車輪支持部155に、路面に対して平行に延びる左前車輪回転軸線P31を中心として回転可能に支持されている。右前車輪32は、リンク機構105の右サイド部材154の下端部に接続された右前車輪支持部156に、路面に対して平行に延びる右前車輪回転軸線P32を中心として回転可能に支持されている。
The left front wheel 31 is rotatably supported by the left front wheel support portion 155 connected to the lower end portion of the left side member 153 of the link mechanism 105 about the left front wheel rotation axis P31 extending parallel to the road surface. The right front wheel 32 is rotatably supported by the right front wheel support portion 156 connected to the lower end portion of the right side member 154 of the link mechanism 105 about the right front wheel rotation axis P32 extending parallel to the road surface.
左前車輪支持部155は、左サイド部材153に、上下方向に延びる左回転軸線WLを中心として回転可能に支持されている。これにより、左前車輪31は、左回転軸線WLを中心として回転可能である。すなわち、左前車輪31は、キャスター式の車輪である。左前車輪31の回転角度範囲は、360度であってもよいし、360度よりも小さい範囲であってもよい。
The left front wheel support portion 155 is rotatably supported by the left side member 153 about the left rotation axis WL extending in the vertical direction. As a result, the left front wheel 31 can rotate about the left rotation axis WL. That is, the left front wheel 31 is a caster type wheel. The rotation angle range of the left front wheel 31 may be 360 degrees or smaller than 360 degrees.
右前車輪支持部156は、右サイド部材154に、上下方向に延びる右回転軸線WRを中心として回転可能に支持されている。これにより、右前車輪32は、右回転軸線WRを中心として回転可能である。すなわち、右前車輪32は、キャスター式の車輪である。右前車輪32の回転角度範囲は、360度であってもよいし、360度よりも小さい範囲であってもよい。
The right front wheel support portion 156 is rotatably supported by the right side member 154 around the right rotation axis WR extending in the vertical direction. As a result, the right front wheel 32 can rotate about the right rotation axis WR. That is, the right front wheel 32 is a caster type wheel. The rotation angle range of the right front wheel 32 may be 360 degrees or smaller than 360 degrees.
なお、左前車輪支持部155と右前車輪支持部156とは、接続されていてもよい。すなわち、左前車輪支持部155及び右前車輪支持部156は、一体で回転してもよい。
The left front wheel support portion 155 and the right front wheel support portion 156 may be connected to each other. That is, the left front wheel support portion 155 and the right front wheel support portion 156 may rotate integrally.
一対の操作ハンドル160は、左操作ハンドル161(第1操作ハンドル)と、右操作ハンドル162(第2操作ハンドル)とを含む。
The pair of operation handles 160 includes a left operation handle 161 (first operation handle) and a right operation handle 162 (second operation handle).
左操作ハンドル161は、左操作ハンドルバー161aと、左把持部161bとを有する。本実施形態では、左操作ハンドルバー161a及び左把持部161bは、一体に構成されている。
The left operation handle 161 has a left operation handle bar 161a and a left grip portion 161b. In the present embodiment, the left operation handlebar 161a and the left grip portion 161b are integrally configured.
左操作ハンドルバー161aは、リンク機構105における左サイド部材153の上端部から、左サイド部材153と連続するように左サイド部材153が延びる方向と同じ方向(延伸方向)に延びている。すなわち、左操作ハンドルバー161aは、左サイド部材153の上端部から後ろに向かうほど上に位置するように前後方向且つ上下方向に向かって延びている。左操作ハンドルバー161aの下端部は、左サイド部材153の上端部に接続されている。なお、左操作ハンドルバーは、左サイド部材の上端部から、左サイド部材が延びる方向とは異なる方向に延びていてもよい。また、左操作ハンドルバー及び左サイド部材は、一体の部材であってもよい。
The left operation handlebar 161a extends from the upper end of the left side member 153 in the link mechanism 105 in the same direction (extension direction) as the left side member 153 extends so as to be continuous with the left side member 153. That is, the left operation handlebar 161a extends in the front-rear direction and the up-down direction so as to be located upward from the upper end portion of the left side member 153 toward the rear. The lower end of the left operation handlebar 161a is connected to the upper end of the left side member 153. The left operation handlebar may extend from the upper end of the left side member in a direction different from the direction in which the left side member extends. Further, the left operation handlebar and the left side member may be an integral member.
左把持部161bは、左操作ハンドルバー161aの上部から、左操作ハンドルバー161aの延伸方向と交差する方向に延びている。左把持部161bは、操縦者の左手によって把持される。
The left grip portion 161b extends from the upper part of the left operation handlebar 161a in a direction intersecting the extending direction of the left operation handlebar 161a. The left grip portion 161b is gripped by the operator's left hand.
右操作ハンドル162は、右操作ハンドルバー162aと、右把持部162bとを有する。本実施形態では、右操作ハンドルバー162a及び右把持部162bは、一体に構成されている。
The right operation handle 162 has a right operation handle bar 162a and a right grip portion 162b. In the present embodiment, the right operation handlebar 162a and the right grip portion 162b are integrally configured.
右操作ハンドルバー162aは、リンク機構105における右サイド部材154の上端部から、右サイド部材154と連続するように右サイド部材154が延びる方向と同じ方向(延伸方向)に延びている。すなわち、右操作ハンドルバー162aは、右サイド部材154の上端部から上方向に向かって延びている。右操作ハンドルバー162aの下端部は、右サイド部材154の上端部に接続されている。なお、右操作ハンドルバーは、右サイド部材の上端部から、右サイド部材が延びる方向とは異なる方向に延びていてもよい。また、右操作ハンドルバー及び右サイド部材は、一体の部材であってもよい。
The right operation handlebar 162a extends from the upper end of the right side member 154 in the link mechanism 105 in the same direction (extension direction) as the direction in which the right side member 154 extends so as to be continuous with the right side member 154. That is, the right operation handlebar 162a extends upward from the upper end portion of the right side member 154. The lower end of the right operation handlebar 162a is connected to the upper end of the right side member 154. The right operation handlebar may extend from the upper end of the right side member in a direction different from the direction in which the right side member extends. Further, the right operation handlebar and the right side member may be an integral member.
右把持部162bは、右操作ハンドルバー162aの上部から、右操作ハンドルバー162aの延伸方向と交差する方向に延びている。右把持部162bは、操縦者の右手によって把持される。
The right grip portion 162b extends from the upper part of the right operation handlebar 162a in a direction intersecting the extending direction of the right operation handlebar 162a. The right grip portion 162b is gripped by the operator's right hand.
上述の構成により、車両101の操縦者が左操作ハンドル161を手で持ち上げることで、リンク機構105の上クロス部材151及び下クロス部材152をリンク機構支持部122に対して揺動させることができる。これにより、左操作ハンドル161の操作によって、左サイド部材153を介して左前車輪31を上に移動させることができる。したがって、左前車輪131が例えば段差Sに接触する際に、図7に示すように操縦者が左操作ハンドル161を手で上に持ち上げることにより、左前車輪131が段差Sに接触する際に受ける力を低減できる。
With the above configuration, the operator of the vehicle 101 can manually lift the left operation handle 161 to swing the upper cross member 151 and the lower cross member 152 of the link mechanism 105 with respect to the link mechanism support portion 122. .. As a result, the left front wheel 31 can be moved upward via the left side member 153 by operating the left operation handle 161. Therefore, when the left front wheel 131 comes into contact with the step S, for example, as shown in FIG. 7, the operator lifts the left operation handle 161 by hand, so that the force received when the left front wheel 131 comes into contact with the step S. Can be reduced.
また、車両101の操縦者が右操作ハンドル162を手で上に持ち上げることで、リンク機構105の上クロス部材151及び下クロス部材152をリンク機構支持部122に対して揺動させることができる。これにより、右操作ハンドル162の操作によって、右サイド部材154を介して右前車輪32を上に移動させることができる。したがって、右前車輪32が例えば段差Sに接触する際に、操縦者が右操作ハンドル162を手で上に持ち上げることにより、右前車輪32が段差Sに接触した際に受ける力を低減できる。
Further, when the operator of the vehicle 101 lifts the right operation handle 162 upward by hand, the upper cross member 151 and the lower cross member 152 of the link mechanism 105 can be swung with respect to the link mechanism support portion 122. As a result, the right front wheel 32 can be moved upward via the right side member 154 by operating the right operation handle 162. Therefore, when the right front wheel 32 comes into contact with the step S, for example, the operator lifts the right operation handle 162 by hand, so that the force received when the right front wheel 32 comes into contact with the step S can be reduced.
このように、本実施形態の車両101では、操縦者が一対の操作ハンドル160を手で操作することで、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を前車輪調整機構6によって調整できる。したがって、左前車輪31または右前車輪32が段差Sに接触した際に、該接触した車輪は、段差Sを容易に乗り越えることができる。
As described above, in the vehicle 101 of the present embodiment, the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operator manually operating the pair of operation handles 160. Can be adjusted by the front wheel adjustment mechanism 6. Therefore, when the left front wheel 31 or the right front wheel 32 comes into contact with the step S, the contacted wheel can easily get over the step S.
また、本実施形態でも、左操作ハンドル161は、車体本体102に対して直線的に変位するように設けられている。右操作ハンドル162は、車体本体102に対して直線的に変位するように設けられている。これにより、車両101の操縦者が左操作ハンドル161または右操作ハンドル162を手で直線的に変位させる操作を行うことで、リンク機構105の上クロス部材151及び下クロス部材152を車体本体102に対して揺動させることができる。よって、車両101の操縦者が左操作ハンドル161または右操作ハンドル162を手で直線的に変位させる操作によって、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を調整することができる。
Further, also in the present embodiment, the left operation handle 161 is provided so as to be linearly displaced with respect to the vehicle body body 102. The right operation handle 162 is provided so as to be linearly displaced with respect to the vehicle body body 102. As a result, the operator of the vehicle 101 manually displaces the left operation handle 161 or the right operation handle 162 to move the upper cross member 151 and the lower cross member 152 of the link mechanism 105 to the vehicle body body 102. On the other hand, it can be swung. Therefore, the load applied to the left front wheel 31 and the right front wheel 32 or the position of the left front wheel 31 and the right front wheel 32 by the operation of the driver of the vehicle 101 to linearly displace the left operation handle 161 or the right operation handle 162 by hand. Can be adjusted.
本実施形態では、既述のように、第1中央揺動軸線UI及び第2中央揺動軸線DIが、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。そのため、車両101の操縦者は、図7に示すように、左操作ハンドル161または右操作ハンドル162を手で延伸方向に操作することにより、左前車輪31及び右前車輪32が段差に接触する際に、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を容易に調整することができる。
In the present embodiment, as described above, the first central rocking axis UI and the second central rocking axis DI extend in the front-rear direction and the up-down direction so as to be located upward from the back to the front. Therefore, as shown in FIG. 7, the operator of the vehicle 101 manually operates the left operation handle 161 or the right operation handle 162 in the extension direction when the left front wheel 31 and the right front wheel 32 come into contact with the step. , The load applied to the left front wheel 31 and the right front wheel 32 or the positions of the left front wheel 31 and the right front wheel 32 can be easily adjusted.
しかも、例えば図7に示すように左前車輪31が路面Gの段差Sに接触した際に受ける力により、車体本体102に左右方向の力やモーメントが生じることを防止できる。図7に示すように、車体本体102には、左前車輪31が路面Gの段差Sに接触した際に受ける力によって、上方向且つ後方向(図中の白抜き矢印)の力が加わるだけである。
Moreover, as shown in FIG. 7, for example, it is possible to prevent a force or moment in the left-right direction from being generated in the vehicle body body 102 due to the force received when the left front wheel 31 comes into contact with the step S on the road surface G. As shown in FIG. 7, the force received when the left front wheel 31 comes into contact with the step S on the road surface G only applies an upward and backward (white arrow in the figure) force to the vehicle body body 102. is there.
このように、本実施形態の構成を有する車両101では、車体本体102に、左前車輪31及び右前車輪32が左右方向に傾く力が作用することを防止できる。
As described above, in the vehicle 101 having the configuration of the present embodiment, it is possible to prevent the force of tilting the left front wheel 31 and the right front wheel 32 in the left-right direction from acting on the vehicle body main body 102.
しかも、路面Gの段差Sから左前車輪31または右前車輪32に入力された力の向きは、左サイド部材153、右サイド部材154及びリンク機構支持部122の延びる方向と同じである。そのため、左サイド部材153、右サイド部材154及びリンク機構支持部122が変形するのを抑制できる。これにより、左前車輪31または右前車輪32は、路面Gの段差Sを容易に乗り越えることができる。
Moreover, the direction of the force input to the left front wheel 31 or the right front wheel 32 from the step S on the road surface G is the same as the extending direction of the left side member 153, the right side member 154, and the link mechanism support portion 122. Therefore, it is possible to prevent the left side member 153, the right side member 154, and the link mechanism support portion 122 from being deformed. As a result, the left front wheel 31 or the right front wheel 32 can easily get over the step S on the road surface G.
以上のような本実施形態の構成により、凹凸のある路面と車輪との接触状態を維持しつつ、車体本体102に作用する力をさらに抑制することができる。
With the configuration of the present embodiment as described above, it is possible to further suppress the force acting on the vehicle body body 102 while maintaining the contact state between the uneven road surface and the wheels.
本実施形態では、上クロス部材151は、車体本体102に対し、中立位置に戻るための付勢部材が設けられることなく、第1中央揺動軸線UI回りに揺動可能に支持されている。下クロス部材152は、車体本体102に対し、中立位置に戻るための付勢部材が設けられることなく、第2中央揺動軸線DI回りに揺動可能に支持されている。
In the present embodiment, the upper cross member 151 is supported on the vehicle body body 102 so as to be swingable around the first central swing axis UI without being provided with an urging member for returning to the neutral position. The lower cross member 152 is supported so as to be swingable around the second central swing axis DI without being provided with an urging member for returning to the neutral position with respect to the vehicle body main body 102.
なお、前記付勢部材は、例えば、コイルスプリング、板バネ、ゴムなどのように弾性復元力を生じる部材であってもよいし、アクチュエータなどのように駆動力を付与する構成部品であってもよい。
The urging member may be, for example, a member that generates an elastic restoring force such as a coil spring, a leaf spring, or rubber, or a component that applies a driving force such as an actuator. Good.
これにより、付勢部材によって上クロス部材151及び下クロス部材152を中立位置に戻す動作が生じないため、上クロス部材151及び下クロス部材152の揺れに起因する車両101の揺れを低減できる。すなわち、凹凸のある路面に対する左前車輪31及び右前車輪32の追従性を向上できる。
As a result, the urging member does not cause the upper cross member 151 and the lower cross member 152 to return to the neutral position, so that the shaking of the vehicle 101 caused by the shaking of the upper cross member 151 and the lower cross member 152 can be reduced. That is, the followability of the left front wheel 31 and the right front wheel 32 to the uneven road surface can be improved.
また、上述の構成により、上クロス部材151及び下クロス部材152をスムーズに動作させることができる。これにより、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を容易に調整することができる。
Further, with the above configuration, the upper cross member 151 and the lower cross member 152 can be operated smoothly. Thereby, the load applied to the left front wheel 31 and the right front wheel 32 or the positions of the left front wheel 31 and the right front wheel 32 can be easily adjusted.
したがって、上述の構成により、利用可能な環境を拡大できる車両101が得られる。しかも、付勢部材が不要になるため、リンク機構105の部品点数を低減することができる。
Therefore, with the above configuration, a vehicle 101 that can expand the available environment can be obtained. Moreover, since the urging member is not required, the number of parts of the link mechanism 105 can be reduced.
[実施形態3]
図8は、実施形態3に係る車両201の概略構成を示す図である。この車両201は、荷台221の前部に、リンク機構205を介して左右一対の前車輪203が設けられている点で、実施形態2の車両101とは異なる。以下では、実施形態1、2と同様の構成には同一の符号を付して説明を省略し、実施形態1、2と異なる構成についてのみ説明する。 [Embodiment 3]
FIG. 8 is a diagram showing a schematic configuration of thevehicle 201 according to the third embodiment. This vehicle 201 is different from the vehicle 101 of the second embodiment in that a pair of left and right front wheels 203 are provided on the front portion of the loading platform 221 via a link mechanism 205. Hereinafter, the same configurations as those of the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted, and only the configurations different from those of the first and second embodiments will be described.
図8は、実施形態3に係る車両201の概略構成を示す図である。この車両201は、荷台221の前部に、リンク機構205を介して左右一対の前車輪203が設けられている点で、実施形態2の車両101とは異なる。以下では、実施形態1、2と同様の構成には同一の符号を付して説明を省略し、実施形態1、2と異なる構成についてのみ説明する。 [Embodiment 3]
FIG. 8 is a diagram showing a schematic configuration of the
図8に示すように、車両201は、車体本体202と、左右一対の前車輪203と、左右一対の後車輪204と、リンク機構205と、前車輪調整機構206とを有する。前車輪調整機構206は、一対の操作ハンドル260を含む。車両201は、例えば、車体本体202の後述する荷台221上に載置された荷物などを運搬可能な台車である。
As shown in FIG. 8, the vehicle 201 has a vehicle body body 202, a pair of left and right front wheels 203, a pair of left and right rear wheels 204, a link mechanism 205, and a front wheel adjustment mechanism 206. The front wheel adjustment mechanism 206 includes a pair of operating handles 260. The vehicle 201 is, for example, a trolley capable of carrying a load or the like placed on a loading platform 221 described later in the vehicle body body 202.
車体本体202は、荷物などを載置可能な荷台221と、リンク機構205を支持するリンク機構支持部222とを有する。
The vehicle body body 202 has a loading platform 221 on which luggage and the like can be placed, and a link mechanism support portion 222 that supports the link mechanism 205.
荷台221は、平面視で長方形状の板状部材である。荷台221の後部の下部には、左右一対の後車輪204が設けられている。左右一対の後車輪204は、左後車輪241と、右後車輪242とを含む。左後車輪241は、荷台221の後部の下部における左部に設けられている。右後車輪242は、荷台221の後部の下部における右部に設けられている。荷台221が、車体本体202の車体フレームを構成する。
The loading platform 221 is a rectangular plate-shaped member in a plan view. A pair of left and right rear wheels 204 are provided below the rear portion of the loading platform 221. The pair of left and right rear wheels 204 includes a left rear wheel 241 and a right rear wheel 242. The left rear wheel 241 is provided on the left side in the lower part of the rear part of the loading platform 221. The right rear wheel 242 is provided on the right side in the lower part of the rear part of the loading platform 221. The loading platform 221 constitutes the vehicle body frame of the vehicle body body 202.
荷台221の前部には、左右一対の前車輪203を支持するリンク機構支持部222が設けられている。なお、荷台221の前部における左右端部には、リンク機構支持部222によって支持された左右一対の前車輪203が後述するように上下方向に移動した際に、左右一対の前車輪203と干渉するのを防止するために、切り欠き部221aが設けられている。
A link mechanism support portion 222 for supporting a pair of left and right front wheels 203 is provided on the front portion of the loading platform 221. At the left and right ends of the front portion of the loading platform 221, when the pair of left and right front wheels 203 supported by the link mechanism support portion 222 move in the vertical direction as described later, they interfere with the pair of left and right front wheels 203. A notch 221a is provided to prevent this from happening.
リンク機構支持部222は、車両201を前から見て、荷台221の前部の上部から上に向かって延びている。詳しくは、リンク機構支持部222は、上部が下部よりも後ろに位置するように、荷台221の前部から上方向で且つ後方向に向かって延びている。
The link mechanism support portion 222 extends upward from the upper part of the front portion of the loading platform 221 when the vehicle 201 is viewed from the front. Specifically, the link mechanism support portion 222 extends upward and backward from the front portion of the loading platform 221 so that the upper portion is located behind the lower portion.
リンク機構支持部222は、荷台221の左右方向の中央に固定されている。リンク機構支持部222は、リンク機構205の後述する上クロス部材251を、第1中央揺動軸線UIを中心として揺動可能に支持し、且つ、後述する下クロス部材252を、第2中央揺動軸線DIを中心として揺動可能に支持する。
The link mechanism support portion 222 is fixed to the center of the loading platform 221 in the left-right direction. The link mechanism support portion 222 supports the upper cross member 251 described later of the link mechanism 205 so as to be swingable around the first central swing axis UI, and the lower cross member 252 described later is supported by the second center swing. It supports swingably around the moving axis DI.
リンク機構205(前車輪変位リンク機構)は、上クロス部材251(第1揺動レバー)と、下クロス部材252(第2揺動レバー)と、左サイド部材253(左前車輪支持体)と、右サイド部材254(右前車輪支持体)とを含む。実施形態1、2と同様、リンク機構205は、平行四節リンク(パラレログラムリンクとも呼ばれる)方式のリンク機構である。リンク機構205は、左右一対の前車輪203よりも上に位置する。
The link mechanism 205 (front wheel displacement link mechanism) includes an upper cross member 251 (first swing lever), a lower cross member 252 (second swing lever), and a left side member 253 (left front wheel support). Includes right side member 254 (right front wheel support). Similar to the first and second embodiments, the link mechanism 205 is a parallel four-node link (also referred to as a parallelogram link) type link mechanism. The link mechanism 205 is located above the pair of left and right front wheels 203.
リンク機構205は、実施形態1のリンク機構5と配置以外は同様の構成を有する。そのため、リンク機構205の詳しい構成の説明は省略する。
The link mechanism 205 has the same configuration as the link mechanism 5 of the first embodiment except for the arrangement. Therefore, the detailed description of the configuration of the link mechanism 205 will be omitted.
左サイド部材253及び右サイド部材254は、それぞれ、上部が下部よりも後ろに位置するように上下方向且つ前後方向に延びている。よって、本実施形態でも、実施形態1、2と同様、左サイド部材253、右サイド部材254及びリンク機構支持部222は、平行である。
The left side member 253 and the right side member 254 extend in the vertical direction and the front-rear direction so that the upper portion is located behind the lower portion, respectively. Therefore, also in the present embodiment, as in the first and second embodiments, the left side member 253, the right side member 254, and the link mechanism support portion 222 are parallel to each other.
上クロス部材251は、左右方向に延びている。上クロス部材251の左右方向の中央部は、リンク機構支持部222に対し、中立位置に戻るための付勢部材が設けられることなく、第1中央揺動軸線UI回りに揺動可能に支持されている。第1中央揺動軸線UIは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。
The upper cross member 251 extends in the left-right direction. The central portion of the upper cross member 251 in the left-right direction is swayably supported around the first central swing axis UI without being provided with an urging member for returning to the neutral position with respect to the link mechanism support portion 222. ing. The first central swing axis UI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
下クロス部材252は、左右方向に延びている。下クロス部材252の左右方向の中央部は、リンク機構支持部222に対し、中立位置に戻るための付勢部材が設けられることなく、第2中央揺動軸線DI回りに揺動可能に支持されている。第2中央揺動軸線DIは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。
The lower cross member 252 extends in the left-right direction. The central portion of the lower cross member 252 in the left-right direction is swayably supported around the second central swing axis DI without being provided with an urging member for returning to the neutral position with respect to the link mechanism support portion 222. ing. The second central swing axis DI extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front.
上クロス部材251の左端部は、左サイド部材253に対し、第1左揺動軸線UL回りに揺動可能に接続されている。第1左揺動軸線ULは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第1左揺動軸線ULは、第1中央揺動軸線UIに対して平行である。
The left end of the upper cross member 251 is swingably connected to the left side member 253 around the first left swing axis UL. The first left swing axis UL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The first left swing axis UL is parallel to the first center swing axis UI.
下クロス部材252の左端部は、左サイド部材253に対し、第2左揺動軸線DL回りに揺動可能に接続されている。第2左揺動軸線DLは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第2左揺動軸線DLは、第2中央揺動軸線DIに対して平行である。
The left end of the lower cross member 252 is swingably connected to the left side member 253 around the second left swing axis DL. The second left swing axis DL extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The second left swing axis DL is parallel to the second center swing axis DI.
上クロス部材251の右端部は、右サイド部材254に対し、第1右揺動軸線UR回りに揺動可能に接続されている。第1右揺動軸線URは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第1右揺動軸線URは、第1中央揺動軸線UIに対して平行である。
The right end of the upper cross member 251 is swingably connected to the right side member 254 around the first right swing axis UR. The first right swing axis UR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The first right swing axis UR is parallel to the first center swing axis UI.
下クロス部材252の右端部は、右サイド部材254に対し、第2右揺動軸線DR回りに揺動可能に接続されている。第2右揺動軸線DRは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。第2右揺動軸線DRは、第2中央揺動軸線DIに対して平行である。
The right end of the lower cross member 252 is swingably connected to the right side member 254 around the second right swing axis DR. The second right swing axis DR extends in the front-rear direction and the up-down direction so as to be located upward from the back to the front. The second right swing axis DR is parallel to the second center swing axis DI.
実施形態1と同様、第1中央揺動軸線UI、第1左揺動軸線UL、第1右揺動軸線UR、第2中央揺動軸線DI、第2左揺動軸線DL及び第2右揺動軸線DRは、互いに平行に延びている。第1中央揺動軸線UI、第1左揺動軸線UL、第1右揺動軸線UR、第2中央揺動軸線DI、第2左揺動軸線DL及び第2右揺動軸線DRは、左前車輪31及び右前車輪32よりも上に位置する。
Similar to the first embodiment, the first central swing axis UI, the first left swing axis UL, the first right swing axis UR, the second central swing axis DI, the second left swing axis DL, and the second right swing. The driving axis DRs extend parallel to each other. The first center swing axis UI, the first left swing axis UL, the first right swing axis UR, the second center swing axis DI, the second left swing axis DL, and the second right swing axis DR are left front. It is located above the wheel 31 and the right front wheel 32.
実施形態1と同様、上クロス部材251、下クロス部材252、左サイド部材253及び右サイド部材254は、上クロス部材251と下クロス部材252とが相互に平行な姿勢を保ち、且つ、左サイド部材253と右サイド部材254とが相互に平行な姿勢を保つように、車体本体202に支持されている。すなわち、上述のように、上クロス部材251及び下クロス部材252がリンク機構支持部222に対して回転可能に支持されている。また、左サイド部材253及び右サイド部材254は、車体本体202に対し、車両201を前から見て上下方向に移動する。
Similar to the first embodiment, in the upper cross member 251 and the lower cross member 252, the left side member 253 and the right side member 254, the upper cross member 251 and the lower cross member 252 maintain a posture parallel to each other, and the left side. The member 253 and the right side member 254 are supported by the vehicle body body 202 so as to maintain a posture parallel to each other. That is, as described above, the upper cross member 251 and the lower cross member 252 are rotatably supported by the link mechanism support portion 222. Further, the left side member 253 and the right side member 254 move in the vertical direction with respect to the vehicle body body 202 when the vehicle 201 is viewed from the front.
リンク機構205の形状及び動作は、実施形態1のリンク機構5及び実施形態2のリンク機構105における形状及び動作と同様である。よって、リンク機構205の形状及び動作に関する詳しい説明は、省略する。
The shape and operation of the link mechanism 205 are the same as the shape and operation of the link mechanism 5 of the first embodiment and the link mechanism 105 of the second embodiment. Therefore, detailed description of the shape and operation of the link mechanism 205 will be omitted.
左右一対の前車輪203は、左前車輪231及び右前車輪232を含む。
The pair of left and right front wheels 203 includes the left front wheel 231 and the right front wheel 232.
左前車輪231は、リンク機構205の左サイド部材253に、上下方向に延びる左回転軸線WLを中心として回転可能に支持されている。左前車輪231は、キャスター式の車輪である。左前車輪231の回転角度範囲は、360度であってもよいし、360度よりも小さい範囲であってもよい。
The left front wheel 231 is rotatably supported by the left side member 253 of the link mechanism 205 about the left rotation axis WL extending in the vertical direction. The left front wheel 231 is a caster type wheel. The rotation angle range of the left front wheel 231 may be 360 degrees or smaller than 360 degrees.
右前車輪232は、リンク機構205の右サイド部材254に、上下方向に延びる右回転軸線WRを中心として回転可能に支持されている。右前車輪232は、キャスター式の車輪である。右前車輪232の回転角度範囲は、360度であってもよいし、360度よりも小さい範囲であってもよい。
The right front wheel 232 is rotatably supported by the right side member 254 of the link mechanism 205 about the right rotation axis WR extending in the vertical direction. The right front wheel 232 is a caster type wheel. The rotation angle range of the right front wheel 232 may be 360 degrees or less than 360 degrees.
一対の操作ハンドル260は、左操作ハンドル261(第1操作ハンドル)と、右操作ハンドル262(第2操作ハンドル)とを含む。
The pair of operation handles 260 includes a left operation handle 261 (first operation handle) and a right operation handle 262 (second operation handle).
左操作ハンドル261は、左操作ハンドルバー261aと、左把持部261bとを有する。本実施形態では、左操作ハンドルバー261a及び左把持部261bは、一体に構成されている。
The left operation handle 261 has a left operation handle bar 261a and a left grip portion 261b. In the present embodiment, the left operation handlebar 261a and the left grip portion 261b are integrally configured.
左操作ハンドルバー261aの下部は、リンク機構205における左サイド部材253の上端部から、左サイド部材253と連続するように左サイド部材253が延びる方向と同じ方向(延伸方向)に延びている。すなわち、左操作ハンドルバー261aの下部は、左サイド部材253の上端部から後ろに向かうほど上に位置するように前後方向且つ上下方向に延びている。左操作ハンドルバー261aの上部は、例えば、荷台221に対して平行に且つ後ろに向かって延びている。左操作ハンドルバー261aの下端部は、左サイド部材253の上端部に接続されている。なお、左操作ハンドルバーの下部は、左サイド部材の上端部から、左サイド部材が延びる方向とは異なる方向に延びていてもよい。左操作ハンドルバーの上部は、荷台221に対して平行でなくてもよい。左操作ハンドルバーの上部は、左操作ハンドルバーの下部が延びる方向に延びていてもよい。また、左操作ハンドルバー及び左サイド部材は、一体の部材であってもよい。
The lower portion of the left operation handlebar 261a extends from the upper end of the left side member 253 in the link mechanism 205 in the same direction (extension direction) as the left side member 253 extends so as to be continuous with the left side member 253. That is, the lower portion of the left operation handlebar 261a extends in the front-rear direction and the up-down direction so as to be located upward from the upper end portion of the left side member 253 toward the rear. The upper portion of the left operation handlebar 261a extends, for example, parallel to the loading platform 221 and rearward. The lower end of the left operation handlebar 261a is connected to the upper end of the left side member 253. The lower portion of the left operation handlebar may extend from the upper end of the left side member in a direction different from the direction in which the left side member extends. The upper part of the left operation handlebar does not have to be parallel to the loading platform 221. The upper part of the left operation handlebar may extend in the direction in which the lower part of the left operation handlebar extends. Further, the left operation handlebar and the left side member may be an integral member.
左把持部261bは、左操作ハンドルバー261aの後端部から、左操作ハンドルバー261aの後部の延伸方向と交差する方向に延びている。左把持部261bは、操縦者の左手によって把持される。
The left grip portion 261b extends from the rear end portion of the left operation handlebar 261a in a direction intersecting the extending direction of the rear portion of the left operation handlebar 261a. The left grip portion 261b is gripped by the operator's left hand.
右操作ハンドル262は、右操作ハンドルバー262aと、右把持部262bとを有する。本実施形態では、右操作ハンドルバー262a及び右把持部262bは、一体に構成されている。
The right operation handle 262 has a right operation handle bar 262a and a right grip portion 262b. In the present embodiment, the right operation handlebar 262a and the right grip portion 262b are integrally configured.
右操作ハンドルバー262aの下部は、リンク機構205における右サイド部材254の上端部から、右サイド部材254と連続するように右サイド部材254が延びる方向と同じ方向(延伸方向)に延びている。すなわち、右操作ハンドルバー262aの下部は、右サイド部材254の上端部から後ろに向かうほど上に位置するように前後方向且つ上下方向に延びている。右操作ハンドルバー262aの上部は、例えば、荷台221に対して平行に且つ後ろに向かって延びている。右操作ハンドルバー262aの下端部は、右サイド部材254の上端部に接続されている。なお、右操作ハンドルバーの下部は、右サイド部材の上端部から、右サイド部材が延びる方向とは異なる方向に延びていてもよい。右操作ハンドルバーの上部は、荷台221に対して平行でなくてもよい。右操作ハンドルバーの上部は、右操作ハンドルバーの下部が延びる方向に延びていてもよい。また、右操作ハンドルバー及び右サイド部材は、一体の部材であってもよい。
The lower portion of the right operation handlebar 262a extends from the upper end of the right side member 254 in the link mechanism 205 in the same direction (extension direction) as the right side member 254 extends so as to be continuous with the right side member 254. That is, the lower portion of the right operation handlebar 262a extends in the front-rear direction and the up-down direction so as to be located upward from the upper end portion of the right side member 254 toward the rear. The upper portion of the right operating handlebar 262a extends, for example, parallel to the loading platform 221 and backward. The lower end of the right operation handlebar 262a is connected to the upper end of the right side member 254. The lower portion of the right operation handlebar may extend from the upper end of the right side member in a direction different from the direction in which the right side member extends. The upper part of the right operating handlebar does not have to be parallel to the loading platform 221. The upper part of the right operation handlebar may extend in the direction in which the lower part of the right operation handlebar extends. Further, the right operation handlebar and the right side member may be an integral member.
右把持部262bは、右操作ハンドルバー262aの後端部から、右操作ハンドルバー262aの後部の延伸方向と交差する方向に延びている。右把持部262bは、操縦者の右手によって把持される。
The right grip portion 262b extends from the rear end portion of the right operation handlebar 262a in a direction intersecting the extending direction of the rear portion of the right operation handlebar 262a. The right grip portion 262b is gripped by the operator's right hand.
上述の構成により、車両201の操縦者が左操作ハンドル261を手で持ち上げることで、リンク機構205の上クロス部材251及び下クロス部材252をリンク機構支持部222に対して揺動させることができる。これにより、左操作ハンドル261の操作によって、左サイド部材253を介して左前車輪231を上に移動させることができる。したがって、左前車輪231が例えば段差に接触する際に、操縦者が左操作ハンドル261を手で上に持ち上げることにより、左前車輪231が段差に接触する際に受ける力を低減できる。
With the above configuration, the operator of the vehicle 201 can manually lift the left operation handle 261 to swing the upper cross member 251 and the lower cross member 252 of the link mechanism 205 with respect to the link mechanism support portion 222. .. As a result, the left front wheel 231 can be moved upward via the left side member 253 by operating the left operation handle 261. Therefore, when the left front wheel 231 comes into contact with the step, for example, the operator lifts the left operation handle 261 upward by hand, so that the force received when the left front wheel 231 comes into contact with the step can be reduced.
また、車両201の操縦者が右操作ハンドル262を手で上に持ち上げることで、リンク機構205の上クロス部材251及び下クロス部材252をリンク機構支持部222に対して揺動させることができる。これにより、右操作ハンドル262の操作によって、右サイド部材254を介して右前車輪232を上に移動させることができる。したがって、右前車輪232が例えば段差に接触する際に、操縦者が右操作ハンドル262を手で上に持ち上げることにより、右前車輪232が段差に接触した際に受ける力を低減できる。
Further, when the operator of the vehicle 201 lifts the right operation handle 262 by hand, the upper cross member 251 and the lower cross member 252 of the link mechanism 205 can be swung with respect to the link mechanism support portion 222. As a result, the right front wheel 232 can be moved upward via the right side member 254 by operating the right operation handle 262. Therefore, when the right front wheel 232 comes into contact with the step, for example, the operator lifts the right operation handle 262 by hand, so that the force received when the right front wheel 232 comes into contact with the step can be reduced.
このように、本実施形態の車両201では、操縦者が一対の操作ハンドル260を手で操作することで、左前車輪231及び右前車輪232に付与される荷重または左前車輪231及び右前車輪232の位置を前車輪調整機構206によって調整できる。したがって、左前車輪231または右前車輪232が段差に接触した際に、該接触した車輪は、前記段差を容易に乗り越えることができる。
As described above, in the vehicle 201 of the present embodiment, the load applied to the left front wheel 231 and the right front wheel 232 or the position of the left front wheel 231 and the right front wheel 232 by the operator manually operating the pair of operation handles 260. Can be adjusted by the front wheel adjustment mechanism 206. Therefore, when the left front wheel 231 or the right front wheel 232 comes into contact with the step, the contacted wheel can easily get over the step.
また、本実施形態でも、左操作ハンドル261は、車体本体202に対して直線的に変位するように設けられている。右操作ハンドル262は、車体本体202に対して直線的に変位するように設けられている。これにより、車両201の操縦者が左操作ハンドル261または右操作ハンドル262を手で直線的に変位させる操作を行うことで、リンク機構205の上クロス部材251及び下クロス部材252を車体本体202に対して揺動させることができる。よって、車両201の操縦者が左操作ハンドル261または右操作ハンドル262を手で直線的に変位させる操作によって、左前車輪231及び右前車輪232に付与される荷重または左前車輪231及び右前車輪232の位置を調整することができる。
Further, also in the present embodiment, the left operation handle 261 is provided so as to be linearly displaced with respect to the vehicle body body 202. The right operation handle 262 is provided so as to be linearly displaced with respect to the vehicle body body 202. As a result, the operator of the vehicle 201 performs an operation of linearly displaces the left operation handle 261 or the right operation handle 262 by hand, so that the upper cross member 251 and the lower cross member 252 of the link mechanism 205 are attached to the vehicle body body 202. On the other hand, it can be swung. Therefore, the load applied to the left front wheel 231 and the right front wheel 232 or the position of the left front wheel 231 and the right front wheel 232 by the operation in which the operator of the vehicle 201 linearly displaces the left operation handle 261 or the right operation handle 262 by hand. Can be adjusted.
しかも、実施形態2と同様、第1中央揺動軸線UI及び第2中央揺動軸線DIが、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びているため、左前車輪231及び右前車輪232が路面から受ける力により、車体本体202に左右方向の力やモーメントが生じることを防止できる。車体本体202には、左前車輪231及び右前車輪232が路面から受ける力によって、上方向且つ後方向の力が加わるだけである。
Moreover, as in the second embodiment, the first central rocking axis UI and the second central rocking axis DI extend in the front-rear direction and the up-down direction so as to be positioned upward from the back to the front, so that the left front wheel The force received by the 231 and the right front wheel 232 from the road surface can prevent a force or moment in the left-right direction from being generated in the vehicle body body 202. An upward and rearward force is only applied to the vehicle body body 202 by the force received from the road surface by the left front wheel 231 and the right front wheel 232.
このように、本実施形態の構成を有する車両201では、車体本体202に、左前車輪231及び右前車輪232が左右方向に傾く力が作用することをより確実に防止できる。
As described above, in the vehicle 201 having the configuration of the present embodiment, it is possible to more reliably prevent the force of the left front wheel 231 and the right front wheel 232 from tilting in the left-right direction on the vehicle body body 202.
また、本実施形態では、実施形態2と同様、上クロス部材251は、車体本体202に対し、中立位置に戻るための付勢部材が設けられることなく、第1中央揺動軸線UI回りに揺動可能に支持されている。下クロス部材252は、車体本体202に対し、中立位置に戻るための付勢部材が設けられることなく、第2中央揺動軸線DI回りに揺動可能に支持されている。
Further, in the present embodiment, as in the second embodiment, the upper cross member 251 swings around the first central swing axis UI without being provided with an urging member for returning to the neutral position with respect to the vehicle body main body 202. It is movably supported. The lower cross member 252 is supported on the vehicle body body 202 so as to be swingable around the second central swing axis DI without being provided with an urging member for returning to the neutral position.
以上の構成により、実施形態2と同様、利用可能な環境を拡大できる車両201が得られる。
With the above configuration, a vehicle 201 capable of expanding the usable environment can be obtained as in the second embodiment.
(その他の実施形態)
以上、本発明の実施の形態を説明したが、上述した実施の形態は本発明を実施するための例示に過ぎない。よって、本発明は上述した実施の形態に限定されることなく、その趣旨を逸脱しない範囲内で上述した実施の形態を適宜変形して実施することが可能である。 (Other embodiments)
Although the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and the above-described embodiment can be appropriately modified and implemented within a range that does not deviate from the gist thereof.
以上、本発明の実施の形態を説明したが、上述した実施の形態は本発明を実施するための例示に過ぎない。よって、本発明は上述した実施の形態に限定されることなく、その趣旨を逸脱しない範囲内で上述した実施の形態を適宜変形して実施することが可能である。 (Other embodiments)
Although the embodiments of the present invention have been described above, the above-described embodiments are merely examples for carrying out the present invention. Therefore, the present invention is not limited to the above-described embodiment, and the above-described embodiment can be appropriately modified and implemented within a range that does not deviate from the gist thereof.
前記実施形態1から3では、車両1,101,201は、左右一対の前車輪3,203を支持するリンク機構5,105,205を有する。しかしながら、車両は、左右一対の後車輪を支持するリンク機構を有していてもよい。
In the first to third embodiments, the vehicles 1, 101, 201 have link mechanisms 5, 105, 205 that support a pair of left and right front wheels 3, 203. However, the vehicle may have a link mechanism that supports a pair of left and right rear wheels.
前記実施形態1から3では、車両1,101,201は、車輪を駆動させるための駆動源を有しない。しかしながら、車両は、車輪を駆動させるための駆動源を有していてもよい。
In the first to third embodiments, the vehicles 1, 101, 201 do not have a drive source for driving the wheels. However, the vehicle may have a drive source for driving the wheels.
前記実施形態1では、前車輪調整機構6は、左操作ハンドル61及び右操作ハンドル62を有する。左操作ハンドル61は、リンク機構5の左サイド部材53の上端部に接続されている。右操作ハンドル62は、リンク機構5の右サイド部材54の上端部に接続されている。
In the first embodiment, the front wheel adjustment mechanism 6 has a left operation handle 61 and a right operation handle 62. The left operation handle 61 is connected to the upper end of the left side member 53 of the link mechanism 5. The right operation handle 62 is connected to the upper end of the right side member 54 of the link mechanism 5.
しかしながら、前車輪調整機構は、リンク機構の左サイド部材及び右サイド部材を上下方向に移動可能な構成であれば、どのような構成を有していてもよい。前車輪調整機構は、例えば、図9に示すように、操作ハンドル365を車体本体2に対して揺動させることにより、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を調整してもよい。
However, the front wheel adjustment mechanism may have any configuration as long as the left side member and the right side member of the link mechanism can be moved in the vertical direction. As shown in FIG. 9, the front wheel adjustment mechanism is, for example, a load applied to the left front wheel 31 and the right front wheel 32 by swinging the operation handle 365 with respect to the vehicle body body 2, or the left front wheel 31 and the right front wheel. The position of 32 may be adjusted.
以下で、図9に示す構成について説明する。なお、実施形態1と同様の構成については同一の符号を付して説明を省略し、実施形態1と異なる構成についてのみ説明する。
The configuration shown in FIG. 9 will be described below. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted, and only the configurations different from those in the first embodiment will be described.
図9に示す車両301は、前車輪調整機構306を有する。前車輪調整機構306は、車体本体2の前部に設けられている。前車輪調整機構306は、連結部材361と、支持部材362,363と、操作ハンドル365とを有する。
The vehicle 301 shown in FIG. 9 has a front wheel adjustment mechanism 306. The front wheel adjustment mechanism 306 is provided on the front portion of the vehicle body body 2. The front wheel adjustment mechanism 306 includes a connecting member 361, support members 362, 363, and an operation handle 365.
連結部材361は、リンク機構5の左サイド部材53の上端部と右サイド部材54の上端部とを連結する。連結部材361は、例えばワイヤ、ベルトなどの可撓性を有する部材である。連結部材361は、車体本体2に支持された支持部材362,363によって、左サイド部材53及び右サイド部材54から上方向に延びるように支持されている。支持部材362,363は、例えば滑車などのように、連結部材361を移動可能に支持する部材である。
The connecting member 361 connects the upper end portion of the left side member 53 of the link mechanism 5 and the upper end portion of the right side member 54. The connecting member 361 is a flexible member such as a wire or a belt. The connecting member 361 is supported by the support members 362 and 363 supported by the vehicle body body 2 so as to extend upward from the left side member 53 and the right side member 54. The support members 362 and 363 are members that movably support the connecting member 361, such as a pulley.
操作ハンドル365は、連結部材361に固定されている。操作ハンドル365を左右方向に移動させることにより、連結部材361も左右方向に移動する。これにより、連結部材361に連結された左サイド部材53及び右サイド部材54は、上下方向に移動し、リンク機構5の上クロス部材51及び下クロス部材52は、リンク機構支持部22に対して揺動する。
The operation handle 365 is fixed to the connecting member 361. By moving the operation handle 365 in the left-right direction, the connecting member 361 also moves in the left-right direction. As a result, the left side member 53 and the right side member 54 connected to the connecting member 361 move in the vertical direction, and the upper cross member 51 and the lower cross member 52 of the link mechanism 5 with respect to the link mechanism support portion 22. Swing.
したがって、前車輪調整機構306によって、左前車輪31及び右前車輪32に付与される荷重または左前車輪31及び右前車輪32の位置を調整することができる。
Therefore, the front wheel adjustment mechanism 306 can adjust the load applied to the left front wheel 31 and the right front wheel 32 or the positions of the left front wheel 31 and the right front wheel 32.
図9に示すような前車輪調整機構を、実施形態2、3の構成に適用してもよい。
The front wheel adjustment mechanism as shown in FIG. 9 may be applied to the configurations of the second and third embodiments.
前記実施形態2、3では、リンク機構105,205の第1中央揺動軸線UI及び第2中央揺動軸線DIは、後ろから前に向かうほど上に位置するように前後方向且つ上下方向に延びている。しかしながら、第1中央揺動軸線UI及び第2中央揺動軸線DIは、実施形態1と同様、前後方向に延びていてもよい。
In the second and third embodiments, the first central rocking axis UI and the second central rocking axis DI of the link mechanisms 105 and 205 extend in the front-rear direction and the up-down direction so as to be positioned upward from the back to the front. ing. However, the first central rocking axis UI and the second central rocking axis DI may extend in the front-rear direction as in the first embodiment.
前記実施形態2では、操作ハンドル160は、左メインフレーム121a及び右メインフレーム121bから、それぞれ、後ろに向かうほど上に位置するように上方向で且つ後方向に延びている。しかしながら、操作ハンドルは、車体フレームに対し、後ろに向かうほど上に位置するように上方向で且つ後方向に延びる第1位置と、前に向かうほど上に位置するように上方向で且つ前方向に延びる第2位置とに切り換え可能に構成されていてもよい。これにより、車両の操縦者の操縦位置を、シートに着座した乳幼児に対する背面位置と前面位置とに切り替えることができる。
In the second embodiment, the operation handle 160 extends upward and backward from the left main frame 121a and the right main frame 121b, respectively, so as to be located upward toward the rear. However, the operation steering wheel has a first position extending upward and backward so as to be located upward toward the rear of the vehicle body frame, and an upward and forward direction so as to be located upward toward the front. It may be configured to be switchable to a second position extending to. As a result, the maneuvering position of the driver of the vehicle can be switched between the back position and the front position with respect to the infant seated on the seat.
上述のように、前記操作ハンドルを前記第1位置と第2位置とに切り替える構成の場合には、前記第1位置では前車輪として機能する車輪が、前記第2位置では後車輪として機能する。よって、上述のように前記操作ハンドルの位置を切り替え可能な場合には、前記実施形態2の構成において、前記車両の走行形態が前記第1走行形態の際には、リンク機構は前記車両の走行方向の前部で機能する一方、前記車両の走行形態が前記第2走行形態の際には、リンク機構は前記車両の走行方向の後部で機能する。
As described above, in the case of the configuration in which the operation handle is switched between the first position and the second position, the wheel that functions as the front wheel in the first position functions as the rear wheel in the second position. Therefore, when the position of the operation handle can be switched as described above, in the configuration of the second embodiment, when the traveling mode of the vehicle is the first traveling mode, the link mechanism is the traveling of the vehicle. While functioning in the front portion of the direction, when the traveling mode of the vehicle is the second traveling mode, the link mechanism functions in the rear portion of the traveling direction of the vehicle.
または、車両の左右一対の前車輪だけでなく左右一対の後車輪も、リンク機構によって車体フレームに支持されていてもよい。この場合、前記車両は、上述のように操作ハンドルの位置によって車両の走行形態を切り替える際に、前記操作ハンドルの位置に応じて、車両の走行方向の後部に位置するリンク機構が機能しないようにロックするロック機構を有する。このロック機構は、リンク機構における一対のクロス部材と一対のサイド部材とが相対移動しないように、クロス部材とサイド部材とをロック、または、一対のクロス部材同士をロック、または、一対のサイド部材同士をロックする。
Alternatively, not only the pair of left and right front wheels of the vehicle but also the pair of left and right rear wheels may be supported by the vehicle body frame by the link mechanism. In this case, in the vehicle, when the traveling mode of the vehicle is switched depending on the position of the operation steering wheel as described above, the link mechanism located at the rear part in the traveling direction of the vehicle does not function according to the position of the operating handle. It has a locking mechanism to lock. This locking mechanism locks the cross member and the side member, locks the pair of cross members, or locks the pair of side members so that the pair of cross members and the pair of side members in the link mechanism do not move relative to each other. Lock each other.
前記操作ハンドルの位置を切り替える際には、前車輪として機能する車輪を支持するリンク機構に対して前記操作ハンドルを接続する。これにより、前記操作ハンドルを前記第1位置と第2位置とに切り替えた場合でも、実施形態2と同様の作用効果が得られる。
When switching the position of the operation handle, the operation handle is connected to a link mechanism that supports a wheel that functions as a front wheel. As a result, even when the operation handle is switched between the first position and the second position, the same operation and effect as in the second embodiment can be obtained.
前記実施形態2では、左前車輪31及び右前車輪32は、それぞれ、上下方向に延びる回転軸線を中心として回転するキャスター式の車輪である。しかしながら、左前車輪及び右前車輪の少なくとも一方は、上下方向に延びる回転軸線を中心として回転しない車輪であってもよい。また、左後車輪及び右後車輪の少なくとも一方が、上下方向に延びる回転軸線を中心として回転する車輪であってもよい。
In the second embodiment, the left front wheel 31 and the right front wheel 32 are caster type wheels that rotate about a rotation axis extending in the vertical direction, respectively. However, at least one of the left front wheel and the right front wheel may be a wheel that does not rotate about a rotation axis extending in the vertical direction. Further, at least one of the left rear wheel and the right rear wheel may be a wheel that rotates about a rotation axis extending in the vertical direction.
前記実施形態1から3では、前車輪調整機構6,106,206の左操作ハンドル61,161,261は、リンク機構5,105,205の左サイド部材53,153,253に接続されている。前車輪調整機構6,106,206の右操作ハンドル62,162,262は、リンク機構5,105,205の右サイド部材54,154,254に接続されている。
In the first to third embodiments, the left operation handles 61, 161, 261 of the front wheel adjustment mechanisms 6, 106, 206 are connected to the left side members 53, 153, 253 of the link mechanisms 5, 105, 205. The right operating handles 62, 162, 262 of the front wheel adjustment mechanisms 6, 106, 206 are connected to the right side members 54, 154, 254 of the link mechanisms 5, 105, 205.
しかしながら、図10に示すように、左操作ハンドル61及び右操作ハンドル62は、リンク機構5に対して、クラッチ機構70を介して接続されていてもよい。このクラッチ機構70は、左操作ハンドル61及び右操作ハンドル62とリンク機構5とを、接続または切断状態に切り替え可能に構成されている。クラッチ機構70は、左操作ハンドル61及び右操作ハンドル62とリンク機構5とが切断状態の場合、左操作ハンドル61及び右操作ハンドル62を車体本体2に接続する。なお、図10において、符号401は、車両を示す。
However, as shown in FIG. 10, the left operation handle 61 and the right operation handle 62 may be connected to the link mechanism 5 via the clutch mechanism 70. The clutch mechanism 70 is configured so that the left operation handle 61, the right operation handle 62, and the link mechanism 5 can be switched to a connected or disconnected state. The clutch mechanism 70 connects the left operation handle 61 and the right operation handle 62 to the vehicle body body 2 when the left operation handle 61, the right operation handle 62, and the link mechanism 5 are disconnected. In FIG. 10, reference numeral 401 indicates a vehicle.
以上の構成により、車両を利用する環境に応じて、前車輪調整機構の操作ハンドルがリンク機構に対して接続された状態と、前車輪調整機構の操作ハンドルがリンク機構に対して切断された状態とを、切り替えることができる。よって、車両を利用する環境に応じて、左前車輪及び右前車輪に付与される荷重の調整の有無または左前車輪及び右前車輪の位置の調整の有無を、切り替えることができる。したがって、車両を利用可能な環境を拡大することができる。
With the above configuration, the operation handle of the front wheel adjustment mechanism is connected to the link mechanism and the operation handle of the front wheel adjustment mechanism is disconnected from the link mechanism according to the environment in which the vehicle is used. And can be switched. Therefore, it is possible to switch whether or not the load applied to the left front wheel and the right front wheel is adjusted or whether or not the positions of the left front wheel and the right front wheel are adjusted according to the environment in which the vehicle is used. Therefore, the environment in which the vehicle can be used can be expanded.
前記実施形態1から3では、左操作ハンドル61,161,261の下端部が、リンク機構5,105,205の左サイド部材53,153,253の上端部に接続されている。右操作ハンドル62,162,262の下端部が、リンク機構5,105,205の右サイド部材54,154,254の上端部に接続されている。しかしながら、左操作ハンドルは、リンク機構の左サイド部材と接続されていれば、該左サイド部材のどの部分に接続されていてもよい。右操作ハンドルは、リンク機構の右サイド部材と接続されていれば、該右サイド部材のどの部分に接続されていてもよい。
In the first to third embodiments, the lower end portions of the left operation handles 61, 161, 261 are connected to the upper end portions of the left side members 53, 153, 253 of the link mechanisms 5, 105, 205. The lower ends of the right operating handles 62, 162, 262 are connected to the upper ends of the right side members 54, 154, 254 of the link mechanisms 5, 105, 205. However, the left operation handle may be connected to any part of the left side member as long as it is connected to the left side member of the link mechanism. The right operation handle may be connected to any part of the right side member as long as it is connected to the right side member of the link mechanism.
前記実施形態1から3では、リンク機構5,105,205は、リンク機構支持部22,122,222よりも前に位置する上クロス部材51,151,251を有する。しかしながら、リンク機構は、上クロス部材及びリンク機構支持部の後ろに、後上クロス部材を有していてもよい。リンク機構は、リンク機構支持部の前に位置する前上クロス部材と、リンク機構支持部の後ろに位置する後上クロス部材とを有していてもよい。
In the first to third embodiments, the link mechanisms 5, 105, 205 have upper cross members 51, 151, 251 located in front of the link mechanism support portions 22, 122, 222. However, the link mechanism may have a rear upper cross member behind the upper cross member and the link mechanism support portion. The link mechanism may have a front upper cross member located in front of the link mechanism support portion and a rear upper cross member located behind the link mechanism support portion.
前記実施形態1から3では、左操作ハンドル61,161,261は、左把持部61b,161b,261bを有する。右操作ハンドル62,162,262は、右把持部62b,162b,262bを有する。しかしながら、左操作ハンドルは、左把持部を有していなくてもよい。右操作ハンドルは、右把持部を有していなくてもよい。
In the first to third embodiments, the left operation handles 61, 161, 261 have left grip portions 61b, 161b, 261b. The right operating handles 62, 162, 262 have right grips 62b, 162b, 262b. However, the left operating handle does not have to have a left grip. The right operating handle does not have to have a right grip.
上述の各実施形態の構成を、車いすなどの他の車両に適用してもよい。すなわち、上述の各実施形態の構成は、凹凸のある路面と車輪との接触状態を維持しつつ、車体本体に作用する力をさらに抑制することが求められている車両であれば、どのような種類の車両に適用してもよい。
The configuration of each of the above embodiments may be applied to other vehicles such as wheelchairs. That is, the configuration of each of the above-described embodiments is any vehicle as long as it is required to further suppress the force acting on the vehicle body body while maintaining the contact state between the uneven road surface and the wheels. It may be applied to different types of vehicles.
1、101、201、301、401 車両
2、102、202 車体本体
3、203 前輪
4、204 後輪
5、105 リンク機構(前車輪変位リンク機構)
6、106、206、306 前車輪調整機構
21 後輪支持部
22、122、222 リンク機構支持部
31、231 左前車輪
32、232 右前車輪
41、241 左後車輪
42、242 右後車輪
51、151、251 上クロス部材(第1揺動レバー)
52、152、252 下クロス部材(第2揺動レバー)
53、153、253 左サイド部材(左前車輪支持体)
54、154、254 右サイド部材(右前車輪支持体)
60、160、260、365 操作ハンドル
61、161、261 左操作ハンドル
61a、161a、261a 左操作ハンドルバー
61b、161b、261b 左把持部
62、162、262 右操作ハンドル
62a、162a、262a 右操作ハンドルバー
62b、162b、262b 右把持部
70 クラッチ機構
107 シート
121 車体フレーム
121a 左メインフレーム
121b 右メインフレーム
121c 下接続フレーム
121d 補強フレーム
121e 上接続フレーム
221 荷台
221a 切り欠き部
361 連結部材
362 支持部材
363 支持部材
UI 第1中央揺動軸線
DI 第2中央揺動軸線
UL 第1左揺動軸線
DL 第2左揺動軸線
UR 第1右揺動軸線
DR 第2右揺動軸線
P31 左前車輪回転軸線
P32 右前車輪回転軸線
P41 左後車輪回転軸線
P42 右後車輪回転軸線
WL 左回転軸線
WR 右回転軸線 1, 101, 201, 301, 401 Vehicle 2, 102, 202 Body body 3, 203 Front wheels 4, 204 Rear wheels 5, 105 Link mechanism (front wheel displacement link mechanism)
6, 106, 206, 306 Frontwheel adjustment mechanism 21 Rear wheel support parts 22, 122, 222 Link mechanism support parts 31, 231 Left front wheels 32, 232 Right front wheels 41, 241 Left rear wheels 42, 242 Right rear wheels 51, 151 , 251 Upper cross member (first swing lever)
52, 152, 252 Lower cross member (second swing lever)
53, 153, 253 Left side member (left front wheel support)
54, 154, 254 Right side member (right front wheel support)
60, 160, 260, 365 Operation handles 61, 161, 261 Left operation handles 61a, 161a, 261a Left operation handlebars 61b, 161b, 261b Left grips 62, 162, 262 Right operation handles 62a, 162a, 262a Right operation handles Bars 62b, 162b, 262b Right grip 70 Clutch mechanism 107 Seat 121 Body frame 121a Left main frame 121b Right main frame 121c Lower connection frame 121d Reinforcement frame 121e Upper connection frame 221 Loading platform 221a Notch 361 Connecting member 362 Support member 363 Support Member UI 1st center swing axis DI 2nd center swing axis UL 1st left swing axis DL 2nd left swing axis UR 1st right swing axis DR 2nd right swing axis P31 Left front wheel rotation axis P32 Right front Wheel rotation axis P41 Left rear wheel rotation axis P42 Right rear wheel rotation axis WL Left rotation axis WR Right rotation axis
2、102、202 車体本体
3、203 前輪
4、204 後輪
5、105 リンク機構(前車輪変位リンク機構)
6、106、206、306 前車輪調整機構
21 後輪支持部
22、122、222 リンク機構支持部
31、231 左前車輪
32、232 右前車輪
41、241 左後車輪
42、242 右後車輪
51、151、251 上クロス部材(第1揺動レバー)
52、152、252 下クロス部材(第2揺動レバー)
53、153、253 左サイド部材(左前車輪支持体)
54、154、254 右サイド部材(右前車輪支持体)
60、160、260、365 操作ハンドル
61、161、261 左操作ハンドル
61a、161a、261a 左操作ハンドルバー
61b、161b、261b 左把持部
62、162、262 右操作ハンドル
62a、162a、262a 右操作ハンドルバー
62b、162b、262b 右把持部
70 クラッチ機構
107 シート
121 車体フレーム
121a 左メインフレーム
121b 右メインフレーム
121c 下接続フレーム
121d 補強フレーム
121e 上接続フレーム
221 荷台
221a 切り欠き部
361 連結部材
362 支持部材
363 支持部材
UI 第1中央揺動軸線
DI 第2中央揺動軸線
UL 第1左揺動軸線
DL 第2左揺動軸線
UR 第1右揺動軸線
DR 第2右揺動軸線
P31 左前車輪回転軸線
P32 右前車輪回転軸線
P41 左後車輪回転軸線
P42 右後車輪回転軸線
WL 左回転軸線
WR 右回転軸線 1, 101, 201, 301, 401
6, 106, 206, 306 Front
52, 152, 252 Lower cross member (second swing lever)
53, 153, 253 Left side member (left front wheel support)
54, 154, 254 Right side member (right front wheel support)
60, 160, 260, 365 Operation handles 61, 161, 261 Left operation handles 61a, 161a, 261a
Claims (7)
- 車体本体と、
前記車体本体に支持される左後車輪及び右後車輪と、
前記車体本体に支持される左前車輪及び右前車輪と、
を備えた車両であって、
左右方向に延びる部材であり、左右方向の中央部が、前記車体本体に、前記車体本体の前後方向に延びる第1中央揺動軸線回りに揺動可能に支持される第1揺動レバーと、
左右方向に延びる部材であり、左右方向の中央部が、前記第1揺動レバーよりも下で、前記車体本体に、前記車体本体の前後方向に延びる第2中央揺動軸線回りに揺動可能に支持される第2揺動レバーと、
上下方向に延びる部材であり、前記第1揺動レバーの左端部に、前記車体本体の前後方向に延びる第1左揺動軸線回りに揺動可能に支持され、且つ、前記第2揺動レバーの左端部に、前記車体本体の前後方向に延びる第2左揺動軸線回りに揺動可能に支持され、前記左前車輪を支持する左前車輪支持体と、
上下方向に延びる部材であり、前記第1揺動レバーの右端部に、前記車体本体の前後方向に延びる第1右揺動軸線回りに揺動可能に支持され、且つ、前記第2揺動レバーの右端部に、前記車体本体の前後方向に延びる第2右揺動軸線回りに揺動可能に支持され、前記右前車輪を支持する右前車輪支持体と、
を含み、
前記左前車輪または前記右前車輪を、前記車体本体に対して、上下方向に変位可能な状態で支持する前車輪変位リンク機構と、
前記車両の操縦者が手で操作可能であり且つ前記操縦者の操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させるように前記前車輪変位リンク機構に接続される操作ハンドルを有し、前記操縦者による前記操作ハンドルの操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する前車輪調整機構と、
を備える、車両。 Body and body
The left rear wheel and the right rear wheel supported by the vehicle body,
The left front wheel and the right front wheel supported by the vehicle body,
It is a vehicle equipped with
A first swing lever that is a member extending in the left-right direction and whose central portion in the left-right direction is supported by the vehicle body body so as to be swingable around a first central swing axis extending in the front-rear direction of the vehicle body body.
It is a member extending in the left-right direction, and the central portion in the left-right direction can swing to the vehicle body body around the second central swing axis extending in the front-rear direction of the vehicle body body below the first swing lever. The second swing lever supported by
It is a member that extends in the vertical direction, is supported by the left end of the first swing lever so as to be swingable around the first left swing axis extending in the front-rear direction of the vehicle body body, and is supported by the second swing lever. A left front wheel support that is swingably supported around a second left swing axis extending in the front-rear direction of the vehicle body and supports the left front wheel at the left end of the vehicle body.
A member that extends in the vertical direction, is supported by the right end of the first swing lever so as to be swingable around the first right swing axis extending in the front-rear direction of the vehicle body body, and the second swing lever. A right front wheel support that is swingably supported around the second right swing axis extending in the front-rear direction of the vehicle body and supports the right front wheel at the right end of the vehicle body.
Including
A front wheel displacement link mechanism that supports the left front wheel or the right front wheel in a vertically displaceable state with respect to the vehicle body body.
An operation handle that can be manually operated by the operator of the vehicle and is connected to the front wheel displacement link mechanism so as to swing the first swing lever and the second swing lever by the operation of the driver. The load applied to the left front wheel and the right front wheel or the left front wheel by swinging the first swing lever and the second swing lever by the operation of the operation handle by the operator. And the front wheel adjustment mechanism that adjusts the position of the right front wheel,
A vehicle equipped with. - 請求項1に記載の車両において、
前記操作ハンドルは、第1操作ハンドル及び第2操作ハンドルを含み、
前記第1操作ハンドルは、前記第1揺動レバーの左部及び前記第2揺動レバーの左部に接続され、
前記第2操作ハンドルは、前記第1揺動レバーの右部及び前記第2揺動レバーの右部に接続され、
前記前車輪調整機構は、
前記操縦者による前記第1操作ハンドル及び前記第2操作ハンドルの少なくとも一方の操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する、車両。 In the vehicle according to claim 1,
The operation handle includes a first operation handle and a second operation handle.
The first operation handle is connected to the left portion of the first swing lever and the left portion of the second swing lever.
The second operation handle is connected to the right portion of the first swing lever and the right portion of the second swing lever.
The front wheel adjustment mechanism
By swinging the first swing lever and the second swing lever by the operation of at least one of the first operation handle and the second operation handle by the operator, the left front wheel and the right front wheel are subjected to the swing. A vehicle that adjusts the load to be applied or the positions of the left front wheel and the right front wheel. - 請求項2に記載の車両において、
前記第1操作ハンドルは、前記左前車輪支持体の上部に接続され、
前記第2操作ハンドルは、前記右前車輪支持体の上部に接続されている、車両。 In the vehicle according to claim 2.
The first operating handle is connected to the upper part of the left front wheel support.
The second operating handle is a vehicle connected to the upper part of the right front wheel support. - 請求項1から3のいずれか一つに記載の車両において、
前記前車輪調整機構は、前記操縦者による前記操作ハンドルの操作によって、前記左前車輪及び前記右前車輪を上下方向且つ前後方向に移動させるように構成されている、車両。 In the vehicle according to any one of claims 1 to 3,
The front wheel adjustment mechanism is a vehicle configured to move the left front wheel and the right front wheel in the vertical direction and the front-rear direction by the operation of the operation steering wheel by the operator. - 請求項1から4のいずれか一つに記載の車両において、
前記操作ハンドルは、前記車体本体に対して直線的に変位するように設けられており、
前記前車輪調整機構は、
前記操縦者による前記操作ハンドルを直線的に変位させる操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する、車両。 In the vehicle according to any one of claims 1 to 4,
The operation handle is provided so as to be linearly displaced with respect to the vehicle body body.
The front wheel adjustment mechanism
The load applied to the left front wheel and the right front wheel or the left front by swinging the first swing lever and the second swing lever by the operation of linearly displace the operation handle by the operator. A vehicle that adjusts the positions of the wheels and the right front wheel. - 請求項1から4のいずれか一つに記載の車両において、
前記操作ハンドルは、前記車体本体に対して揺動するように設けられており、
前記前車輪調整機構は、
前記操縦者による前記操作ハンドルを揺動させる操作によって前記第1揺動レバー及び前記第2揺動レバーを揺動させることにより、前記左前車輪及び前記右前車輪に付与される荷重または前記左前車輪及び前記右前車輪の位置を調整する、車両。 In the vehicle according to any one of claims 1 to 4,
The operation handle is provided so as to swing with respect to the vehicle body body.
The front wheel adjustment mechanism
The load applied to the left front wheel and the right front wheel or the left front wheel and the left front wheel by swinging the first swing lever and the second swing lever by the operation of swinging the operation handle by the operator. A vehicle that adjusts the position of the right front wheel. - 請求項1から6のいずれか一つに記載の車両において、
前記前車輪調整機構は、
前記操作ハンドルと前記前車輪変位リンク機構との間に、前記操作ハンドルと前記前車輪変位リンク機構とを接続状態または切断状態に切り替えるクラッチ機構を含む、車両。 In the vehicle according to any one of claims 1 to 6.
The front wheel adjustment mechanism
A vehicle including a clutch mechanism between the operation handle and the front wheel displacement link mechanism that switches the operation handle and the front wheel displacement link mechanism into a connected state or a disconnected state.
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PCT/JP2019/049796 WO2021124508A1 (en) | 2019-12-19 | 2019-12-19 | Vehicle |
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PCT/JP2019/049796 WO2021124508A1 (en) | 2019-12-19 | 2019-12-19 | Vehicle |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561778A (en) * | 1968-03-06 | 1971-02-09 | Edward G La Brie | Three wheeled vehicle |
JPS6230971A (en) * | 1985-07-31 | 1987-02-09 | Nec Corp | Semiconductor integrated circuit device |
US4740004A (en) * | 1986-06-09 | 1988-04-26 | Mcmullen Wayne W | Three wheeled cycle with load carrying basket |
JPH0640204A (en) * | 1992-03-10 | 1994-02-15 | Pierre Patin | Vehicle stabilizing device |
CN208411980U (en) * | 2018-03-28 | 2019-01-22 | 王杰 | Detachable Multifunctional front trolley and bicycle |
-
2019
- 2019-12-19 WO PCT/JP2019/049796 patent/WO2021124508A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561778A (en) * | 1968-03-06 | 1971-02-09 | Edward G La Brie | Three wheeled vehicle |
JPS6230971A (en) * | 1985-07-31 | 1987-02-09 | Nec Corp | Semiconductor integrated circuit device |
US4740004A (en) * | 1986-06-09 | 1988-04-26 | Mcmullen Wayne W | Three wheeled cycle with load carrying basket |
JPH0640204A (en) * | 1992-03-10 | 1994-02-15 | Pierre Patin | Vehicle stabilizing device |
CN208411980U (en) * | 2018-03-28 | 2019-01-22 | 王杰 | Detachable Multifunctional front trolley and bicycle |
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