CN112519951B - Pedal type motorcycle - Google Patents
Pedal type motorcycle Download PDFInfo
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- CN112519951B CN112519951B CN202010971672.2A CN202010971672A CN112519951B CN 112519951 B CN112519951 B CN 112519951B CN 202010971672 A CN202010971672 A CN 202010971672A CN 112519951 B CN112519951 B CN 112519951B
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- generator
- swing arm
- groove
- flat portion
- battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M23/00—Transmissions characterised by use of other elements; Other transmissions
- B62M23/02—Transmissions characterised by use of other elements; Other transmissions characterised by the use of two or more dissimilar sources of power, e.g. transmissions for hybrid motorcycles
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The object of the present invention is to achieve lowering of the center of gravity of a vehicle in a scooter type motorcycle driven by electric power stored in a battery from electric power generated by a generator mounted on the vehicle. The present invention provides a scooter type motorcycle, comprising: a swing arm 4 whose front end supports and supports the rear wheel 15 in a vertically swingable manner with respect to the vehicle body frame 2 through a pivot shaft 25; a seat 18 above the swing arm; and a generator 8 including an internal combustion engine 81 and ACG 83; and a travel drive motor 7 configured to be driven by electric power generated by the generator 8 and stored in the battery 6, wherein the travel drive motor 7 and the generator 8 are provided on the swing arm.
Description
Technical Field
The present invention relates to a scooter type motorcycle which runs by electric power generated by a generator mounted on the motorcycle.
Background
For example, a conventional scooter type motorcycle is disclosed in the following patent document 1, which uses electric power generated by a generator mounted on the motorcycle and uses electric power stored in a battery also mounted on the vehicle for driving and running. In the scooter type motorcycle disclosed in patent document 1, a generator is mounted in the vicinity of a fuel tank located above the front side of the vehicle. Therefore, in the scooter type motorcycle disclosed in patent document 1, the center of gravity of the vehicle is located at a high position. In addition, the battery is provided at the center of gravity of the vehicle, and the travel drive motor is mounted on the wheel shafts of the front and rear wheels, respectively, and therefore, there is a problem in that the distance between the travel drive motor and the battery and the generator is large, and therefore, the wire harness connecting the travel drive motor and the battery and the generator to each other becomes long.
[ Prior art documents ]
[ patent document ]
Patent document 1: JP 2015-085797A (FIGS. 1 to 3)
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in view of the above-mentioned prior art, and an object of the present invention is to provide a scooter type motorcycle which travels by being driven by electric power generated by a generator mounted on the motorcycle and stored in a battery mounted on the motorcycle, wherein the center of gravity of the motorcycle can be lowered.
Further, another object of the present invention is to provide a scooter type motorcycle in which the distance between a running drive motor and a battery and a generator can be shortened.
Means for solving the problems
In order to solve the above problem, according to the present invention, there is provided a scooter type motorcycle comprising: a swing arm, the front end of which is supported on the vehicle body frame through a pivot shaft in a vertically swinging manner and supports a rear wheel; a seat disposed above the swing arm; a generator in which the internal combustion engine and the ACG are housed, and a travel drive motor configured to drive the rear wheels such that the rear wheels travel by electric power generated by the generator and stored in the battery, wherein the travel drive motor and the generator are disposed above the swing arm.
With this configuration, the running drive motor and the generator are disposed above the swing arm, and therefore the center of gravity of the vehicle can be lowered, thereby stabilizing the vehicle body.
According to a preferred embodiment of the present invention, the travel drive motor is mounted on a swing arm, an upper surface of the swing arm disposed behind the pivot shaft has a flat portion on which the generator is mounted, and the generator is disposed below the seat and mounted on the swing arm.
As described above, the generator is provided under the seat and on the swing arm, and therefore, the center of gravity of the vehicle can be lowered, thereby stabilizing the vehicle body.
According to a preferred embodiment of the invention, the generator is mounted in a space surrounded by: a pivot; a bracket provided at a rear portion of a seat rail of the vehicle body frame above the swing arm, and to which a rear bumper is connected; and a rear end portion of the swing arm.
Therefore, the generator is disposed close to the center of the vehicle on the swing arm, thus contributing to lowering the center of gravity and stabilizing the vehicle.
According to a preferred embodiment of the present invention, the battery and the power control unit connected to the battery are mounted on a lower frame of the vehicle body frame, the lower frame having a support portion for supporting the pivot shaft.
Therefore, the travel driving motor and the generator are mounted on the swing arm near the battery and the power control unit on the lower frame, and therefore, the distance between the travel driving motor and the generator and the battery and the power control unit can be shortened, so that the length of the wire harness connecting these components can be shortened.
According to a preferred embodiment of the present invention, the swing arm includes a vertical wall on a rear side of the flat portion and one side in the vehicle width direction, and does not include a vertical wall on a front side of the flat portion and the other side in the vehicle width direction, so that the front side and the other side of the flat portion are formed in a flat shape without the vertical wall.
Therefore, the strength of the swing arm can be ensured by the vertical wall, and the generator can be easily mounted and removed from the other side or the front side where no vertical wall exists in the vehicle width direction. In addition, the temporary placement position of the generator may be restricted by the vertical wall, and thus, the maintainability may be enhanced.
According to a preferred embodiment of the present invention, the lower part of the generator includes a convex engaging portion, the flat portion of the swing arm includes a groove-shaped recessed portion with which the convex engaging portion is detachably engaged in a direction perpendicular to one of the vertical walls, and an end section of the groove-shaped recessed portion of the side not forming the vertical wall is formed to be open in the groove direction, and the convex engaging portion and the groove-shaped recessed portion are aligned with each other in position as viewed in the groove direction.
Therefore, the convex engagement portion of the generator can be easily fitted in the groove-shaped recessed portion of the flat portion of the swing arm, and therefore, a state in which the generator is temporarily placed can be obtained, in which state the convex engagement portion is fitted in the groove-shaped recessed portion, whereby the adjustment operation can be easily performed, and the mounting and removal of the generator on and from the swing arm can be easily performed.
According to a preferred embodiment of the invention, the generator is an integral body formed by the internal combustion engine, the ACG and the fuel tank.
Therefore, the internal combustion engine and the ACG (including the fuel tank) can be integrally installed and removed as a generator, and thus maintenance can be enhanced. In addition, in order to increase the fuel storage capacity, a second fuel tank may be provided at another portion.
According to a preferred embodiment of the present invention, one of the vertical walls includes a power input connector whose connecting direction is parallel to the groove-shaped recessed portion, and the generator includes a power output connector at a position at which the power output connector is allowed to be connected with the power input connector in a state in which the generator is placed on the flat portion and the convex engaging portion is fitted in the groove-shaped recessed portion.
Therefore, by sliding the generator on the flat portion of the swing arm along the groove-shaped recessed portion, the power input connector on the swing arm side and the power output connector on the generator side can be connected to or disconnected from each other, and therefore, when the generator is mounted or removed, connection or disconnection of the power supply circuit can be performed simultaneously, so that mountability and maintainability can be increased.
According to a preferred embodiment of the present invention, in a state where the generator is mounted on the swing arm, the crankshaft of the internal combustion engine housed in the generator is directed perpendicular to the flat portion, and the ACG mounted on the lower end side of the crankshaft is disposed below the crankcase of the internal combustion engine.
Therefore, in a state where the generator is mounted on the swing arm, the ACG as a heavy object is disposed below the crankcase, and therefore, this configuration can contribute to stabilizing the generator and lowering the center of gravity of the vehicle.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the scooter type motorcycle of the present invention, the running drive motor and the generator are located above the swing arm, and therefore, lowering of the center of gravity of the vehicle can be achieved, so that stabilization of the vehicle body can be achieved.
Drawings
Fig. 1 is a left side view of a scooter type motorcycle according to an embodiment of the present invention.
Fig. 2 is a left side view of the swing arm in fig. 1.
Fig. 3 is a plan view of a partial section of the swing arm as seen in the direction indicated by the arrows III-III in fig. 2.
Fig. 4 is a right side view of the swing arm as seen in the direction indicated by arrows IV-IV in fig. 3.
Fig. 5 is a perspective view of the swing arm as seen in the direction indicated by the arrow V in fig. 3 and 4, obliquely seen from positions disposed at the front, right and upper sides.
Fig. 6 is a right side schematic view of the VI portion in fig. 4 as seen in the same direction as fig. 4, highlighting the generator indicated by the two-dot chain line, and fig. 6 corresponds to the view as seen in the direction indicated by the arrows VI-VI in fig. 7.
Fig. 7 is a front view of the generator as seen in the direction indicated by arrows VII-VII in fig. 6.
Detailed Description
Hereinafter, one embodiment of a scooter type motorcycle according to the present invention is described with reference to fig. 1 to 7. Fig. 1 is a left side view of a scooter type motorcycle (hereinafter simply referred to as "motorcycle") according to an embodiment of the present invention. In the description and claims, the directions of the front-rear, left-right, and up-down are determined based on a standard generally used assuming that the traveling direction of the motorcycle 1 of the present embodiment is the forward direction. In the figure, an arrow FR indicates a forward direction, an arrow LH indicates a leftward direction, an arrow RH indicates a rightward direction, and an arrow UP indicates an upward direction.
As shown in fig. 1, a body frame 2 of a motorcycle 1 is formed by: a lower frame 21 extending downward from the head pipe 20; a pair of left and right lower frames 22, 22 branched in the leftward and rightward directions in the vehicle width direction from the lower end portion of the lower frame 21, extending slightly downward, and extending substantially horizontally in the rearward direction in the longitudinal direction of the vehicle; and seat rails 23, 23 extending obliquely in the rearward and upward directions from rear end portions of the lower frames 22, respectively.
The steering handle 12 is mounted on an upper end of the steering shaft 11, and the steering shaft 11 is pivotably and rotatably supported on the head pipe 20. A pair of left and right front forks 13, 13 connected to the lower end portion of the steering shaft 11 extend forward and downward. The front wheel 14 is pivotally and rotatably supported on the lower end portions of the front forks 13, 13. On the other hand, pivot plates (the "support portions" in the present invention) 24, 24 are provided at inclined portions that are rear portions of the lower frames 22, 22 extending obliquely in the upward direction, and the swing arm 4 is mounted on the vehicle body frame 2 in a vertically swingable manner in a state in which a front end of the swing arm 4 is pivotably supported by a pivot shaft 25 extending between the left and right pivot plates 24, 24.
The swing arm 4 is a frame elongated in the longitudinal direction and supported on the pivot plates 24, 24 by the pivot shaft 25. The left side of the swing arm 4 disposed rearward of the front end of the swing arm 4 extends in the vehicle rearward direction. The rear wheel 15 is rotatably mounted on the rear portion of the swing arm 4 in a state where the rear wheel 15 is pivotally supported on the rear wheel shaft 16. The rear wheels 15 are driven for running by a running drive motor 7 mounted on the swing arm 4. The rear bumper 17 is interposed between the rear end portion 41 of the swing arm 4 and a bracket 23a formed on the rear portion of the seat rail 23 located above the swing arm 4.
The front lower connection pipe 26 and the rear lower connection pipe 27, which hang downward and connect the left and right under frames 22, 22 to each other, are fixed to the horizontal portion front end side 22a and the horizontal portion rear end side 22b of the left and right under frames 22, 22. The floor beams 28 extend substantially parallel to the lower frames 22, 22 between the front lower connection pipe 26 and the rear lower connection pipe 27, and the floor beams 28 are fixed to the front lower connection pipe 26 and the rear lower connection pipe 27. The battery 6 is mounted on the floor beam 28 between the left and right lower frames 22, 22.
The body frame 2 is covered with a body cover 10. Above the swing arm 4, a seat 18 is mounted on a center cover portion 10a of the vehicle body cover 10 that covers the seat rail 23. In addition, stepped portions 10b, 10b are provided on the left and right lower frames 22, respectively, and the battery cover portion 10c covers the battery 6 from above between the stepped portions 10b, 10 b. A power control unit 61 connected to the battery 6 is provided between the battery cover portion 10c and the battery 6. That is, the battery 6 and the power control unit 61 connected to the battery 6 are mounted on the lower frames 22, 22 having the pivot plates 24, the pivot plates 24, 24 being support portions for supporting the pivot shaft 25 in the vehicle body frame 2.
Fig. 2 is a left side view of the swing arm 4 in fig. 1. Left and right suspensions 4a, 4a pivotably supported by pivot plates 24, 24 of the lower frames 22, 22 by means of pivot shafts 25 are formed on the front end side of the swing arm 4 in a forwardly projecting manner (see fig. 3 and 5). The travel drive motor 7, which drives the rear wheel 15 to cause the rear wheel 15 to travel, is mounted on the swing arm 4 (which extends rearward on the left side of the vehicle) at a position close to the rear side of the swing arm 4, and the left side (the side of the observer in fig. 2) of the travel drive motor 7 is covered by a motor cover 42 mounted on the swing arm 4.
The rear wheel shaft 16 is pivotably supported on the right side (depth side in fig. 2) of the swing arm 4 behind the motor output shaft 71 of the travel drive motor 7, and a reduction gear mechanism 5 described later is provided between the motor output shaft 71 of the swing arm 4 and the rear wheel shaft 16. The right side of the reduction gear mechanism 5 is covered by a reduction gear cover 43 mounted on the swing arm 4 (see fig. 3).
Fig. 3 is a plan view of a partial section of the swing arm 4 as seen in the direction indicated by the arrow III-III in fig. 2. In fig. 2, the left side as viewed from the observer side of the vehicle is assumed to be the forward direction. On the other hand, the right side as viewed from the observer side in fig. 3 is assumed to be the forward direction of the vehicle. As shown in fig. 3, the travel drive motor 7 mounted on the left side surface of the rear portion of the swing arm 4 is a radial gap type AC motor in which a stator coil and a rotor are arranged in a radial direction. An inner rotor 72 is integrally mounted on the motor output shaft 71, and an annular outer stator 73 covers the outer periphery of the inner rotor 72.
The motor output shaft 71 is directed in the lateral vehicle width direction, and an outer stator 73 surrounding an inner rotor 72 is fixed to the swing arm 4. The stator coil 73a is wound on the stator core of the outer stator 73. The inner rotor 72 and the outer stator 73 are accommodated in the motor cover 42.
On the right side surface of the rear portion of the swing arm 4, a reduction gear chamber 50 is formed, which is covered by a reduction gear cover 43 and accommodates therein the reduction gear mechanism 5. The motor output shaft 71 is supported by the swing arm 4 such that the motor output shaft 71 passes laterally through the bearing 50a, the bearing 50a is fitted in the swing arm 4 in a penetrating manner, and the motor output shaft 71 projects into the reduction gear chamber 50. The right end of the motor output shaft 71 is supported on a bearing 50b fitted in the reduction gear cover 43. The reduction gear mechanism 5 is formed as a two-stage reduction mechanism in which the intermediate shaft 51 is disposed between the motor output shaft 71 and the rear wheel shaft 16 that supports the rear wheels 15 on the rear side of the vehicle.
The intermediate large-diameter gear 51b fitted on the intermediate shaft 51 meshes with a small-diameter gear 71a formed on the motor output shaft 71. The intermediate small-diameter gear 51a formed on the intermediate shaft 51 meshes with the rear axle large-diameter gear 16b in the reduction gear chamber 50 of the rear axle 16.
The rear wheel shaft 16 is pivotably supported on the swing arm 4 and the reduction gear cover 43 through bearings 52a, 52b, and the wheel 15a of the rear wheel 15 is fitted on a portion of the rear wheel shaft 16 projecting rightward from the reduction gear cover 43. With such a configuration, by the engagement between the small diameter gear 71a and the intermediate large diameter gear 51b and the engagement between the intermediate small diameter gear 51a and the rear axle large diameter gear 16b in the reduction gear mechanism 5, the rotation speed of the motor output shaft 71 is reduced in two steps, and the reduced rotation is transmitted to the rear axle 16, and the rear wheel 15 is rotated.
As shown in fig. 3 (see fig. 5), the swing arm 4 of the motorcycle 1 of this embodiment has a flat portion 3 having a large width in the lateral direction on the upper surface of the front portion of the swing arm 4 behind the left and right suspensions 4a, which project forward and are supported on the vehicle body frame 2 by the pivot shaft 25. The right swing arm 4b is fastened to the right side surface of the flat portion 3. The right swing arm 4b extends rearward, and pivotably supports a distal end of the rear wheel shaft 16.
A generator 8 accommodating an internal combustion engine 81 and an ACG (AC generator) 83A is mounted on the flat portion 3. The travel drive motor 7 mounted on the swing arm 4 is driven using electric power generated by the generator 8 and stored in the battery 6 to cause the rear wheels 15 to travel. More specifically, the battery 6 is connected to a power control unit 61 having an inverter function. The AC power generated by the generator 8 is converted into DC power in the power control unit 61 and charged in the battery 6. The power control unit 61 converts DC power, which is power stored in the battery 6, into AC power, and supplies the power to the travel drive motor 7 while performing speed control based on an operation instructed by the rider.
With such a configuration, the travel drive motor 7 and the generator 8 are disposed above the swing arm 4, and the generator 8 is disposed on the swing arm 4 and below the seat 18. Therefore, the center of gravity of the vehicle can be lowered, so that the vehicle body can be stabilized. Further, as shown in fig. 1, as seen in a side view, the generator 8 is installed in a space surrounded by: a pivot 25; a bracket 23a provided at the rear of the seat rail 23 above the swing arm 4, and the rear bumper 17 is connected to the bracket 23 a; and a rear end portion 41 of the swing arm 4. Therefore, the generator is disposed near the center of the vehicle at the swing arm 4, thus contributing to lowering the center of gravity and stabilizing the vehicle.
The battery 6 and the electric power control unit 61 are mounted on the lower frames 22, 22 having the pivot plates 24, the pivot plates 24, 24 are support portions for supporting the pivots 25 of the swing arm 4, and both the travel drive motor 7 and the generator 8 are mounted on the swing arm 4. Therefore, the travel driving motor 7 and the generator 8 are disposed close to the battery 6 and the power control unit 61, so that the distance between these components can be shortened, and the length of a wire harness (not shown in the figure) connecting these components can be shortened (see fig. 1).
The generator 8 is formed as a whole by an internal combustion engine 81, an ACG83 and a fuel tank 84 in a generator housing 80. Therefore, the internal combustion engine 81 and the ACG83 (including the fuel tank 84) can be integrally mounted on the swing arm 4 as the generator 8 or removed from the swing arm 4, and therefore, a second fuel tank can be provided also at another position of the motorcycle 1 to increase the fuel capacity.
Fig. 4 is a right side view of the swing arm 4 as seen in the direction indicated by arrows IV-IV in fig. 3. Fig. 5 is a perspective view of the swing arm as seen in the direction indicated by the arrow V in fig. 3 and 4, which is obliquely seen from positions disposed at the front, right, and upper sides. As shown in fig. 3, 4 and 5, the swing arm 4 includes a flat portion 3 having a large width on an upper surface of a front portion of the swing arm 4 in the lateral direction. The generator 8 is mounted on the flat portion 3. A rear vertical wall (a "vertical wall" in the present invention) 44 and a side vertical wall (a "vertical wall" in the present invention) 45 are formed on the rear side of the flat portion 3 and the left side of the flat portion 3 in the vehicle width direction. The front side of the flat portion 3 and the right side of the flat portion 3 in the vehicle width direction are formed in a flat shape without an upright wall.
Therefore, the strength of the swing arm 4 can be ensured by the rear vertical wall 44 and the side vertical wall 45. By moving the generator 8 substantially horizontally on the flat portion 3, the generator 8 can be easily mounted and removed from the right side without the side vertical wall 45 or from the front side without the rear vertical wall 44 in the vehicle width direction. In addition, the temporary placement position of the generator 8 can be restricted by the rear vertical wall 44 and the side vertical wall 45 when the generator 8 is installed, and therefore, ease and safety of operation can be obtained, so that maintainability can be enhanced. The swing arm 4 may be formed such that the side vertical wall 45 is formed on the right side in the vehicle width direction and no vertical wall is formed on the left side in the vehicle width direction, so that the left side in the vehicle width direction is formed in a flat shape. In this case, a later-described generator 8 is formed such that the generator 8 is mounted on or removed from the flat portion 3 from the left side in the vehicle width direction.
Fig. 6 is a right side schematic view of a portion indicated by VI in fig. 4 as seen in the same direction as fig. 4, highlighting the generator 8 indicated by the two-dot chain line. Fig. 7 is a front view of the generator 8 as seen in the direction indicated by arrows VII-VII in fig. 6. As shown in fig. 6, the generator 8 is formed as a whole by an internal combustion engine 81, an ACG83, and a fuel tank 84 in one generator housing 80. On the other hand, to achieve positioning of the generator 8 on the flat portion 3, convex engagement portions 85 (each of which protrudes downward and has a diameter-enlarged portion 85a at a lower end thereof) are fastened to a lower portion of the generator 8, that is, to a lower surface of the generator case 80, from below by bolts 85 b.
As shown in fig. 3 and 4, in this embodiment, a groove-shaped recessed portion 31 (by which a convex engaging portion 85 of the generator 8 is detachably engageable) is formed on the flat portion 3 of the swing arm 4 in a direction perpendicular to the side vertical wall 45. The groove-shaped recessed portion 31 may be formed in a direction perpendicular to the rear vertical wall 44. That is, the groove-shaped recessed portion 31 is formed in a direction perpendicular to any one of the side vertical wall 45 and the rear vertical wall 44. In this embodiment, two groove-shaped recessed portions 31 are formed in parallel with each other in the vehicle width direction. Convex engaging portions 85 are formed at two portions corresponding to the respective groove-shaped recessed portions 31. The groove-shaped recessed portion 31 includes: an upper groove portion 31a whose groove width is narrower than the diameter of the diameter-enlarged portion 85a to prevent the diameter-enlarged portion 85a of the convex engaging portion 85 from being removed in the upward direction; and a lower groove portion 31b having a larger groove width to allow the enlarged diameter portion 85a to pass through the groove-shaped recess portion 31 in the groove direction. An end section 31c of the groove-shaped recessed portion 31 provided on the side without the side vertical wall 45 is formed in the groove direction, i.e., on the right end side in the vehicle width direction, being open in the groove direction. The convex engaging portion 85 and the groove-shaped recessed portion 31 are aligned with each other in position when viewed in the groove direction of the groove-shaped recessed portion 31.
Therefore, by inserting the convex engaging portion 85 of the generator 8 into the end section 31c on the right side in the vehicle width direction and sliding the generator 8 on the flat portion 3, the generator 8 can be brought into a temporarily placed state. In this case, as described above, the temporary placement position of the generator 8 can be restricted by the side vertical wall 45, and therefore, ease and safety of operation can be obtained, so that maintainability can be enhanced. As described above, the convex engagement portion 85 of the generator 8 can be easily fitted in the groove-shaped recessed portion 31 of the flat portion 3 of the swing arm 4, and a temporary placement state of the generator 8 can be obtained with the convex engagement portion 85 inserted in the groove-shaped recessed portion 31. Therefore, the adjustment operation can be easily performed, so that the generator 8 can be easily mounted on the swing arm 4 or removed from the swing arm 4.
As shown in fig. 3, a configuration may be adopted in which a groove-width-enlarged portion 31d (which allows all of the enlarged diameter portions 85a of the convex engaging portions 85 of the generator 8 to vertically pass through the groove-width-enlarged portion 31d) is formed on the middle portion of the groove-shaped recessed portion 31, and the convex engaging portions 85 of the generator 8, which are appropriately placed on the flat portion 3, may be fitted in the groove-shaped recessed portion 31 from above.
As indicated by the two-dot chain line in fig. 3, even in the case where the groove-shaped recessed portion 31 of the flat portion 3 is directed in the vehicle longitudinal direction and the convex engaging portion 85 of the generator 8 is arranged to correspond to the groove-shaped recessed portion 31, substantially the same advantageous effects can be obtained by substantially the same configuration. In this case, when the generator 8 is mounted on and removed from the flat portion 3, the access of the flat portion 3 by the generator 8 is made from the front side of the vehicle.
As shown in fig. 3, in this embodiment, a power input connector 46 (the connection direction of which is parallel to the groove-shaped recessed portion 31) is provided on the flat portion 3 side of the side vertical wall 45 of the swing arm 4. The power input connector 46 is connected to the power control unit 61 through the inside of the swing arm 4. As shown in fig. 3 and 7, the generator 8 includes the power output connector 86 at a position allowing the power output connector 86 to be connected with the power input connector 46 in a state in which the generator 8 is placed on the flat portion 3 and the convex engaging portion 85 is fitted in the groove-shaped recessed portion 31.
Therefore, by sliding the generator 8 on the flat portion 3 of the swing arm 4 along the groove-shaped recessed portion 31, the power input connector 46 provided on the swing arm 4 side and the power output connector 86 provided on the generator 8 side can be connected to or disconnected from each other. Therefore, the connection or disconnection of the power circuit can be performed simultaneously when the generator 8 is removed or installed, and therefore, the installability and removability of the generator 8 and the maintainability can be enhanced. As shown in fig. 7, a handle 80a is mounted on a side surface of the generator housing 80 on the side opposite to the power output connector 86. The operator grasps the handle 80a when performing an operation such as sliding the generator 8 along the groove-shaped recessed portion 31 or connecting or disconnecting the power output connector 86 with the power input connector 46.
In the case where the groove-shaped recessed portion 31 formed on the flat portion 3 is provided such that the groove-shaped recessed portion 31 is directed in the vehicle longitudinal direction as indicated by the two-dot chain line in fig. 3, the power input connector 46 provided on the swing arm 4 side is provided on the flat portion 3 side of the rear vertical wall 44.
As shown in fig. 6, in the generator 8, a crankshaft 81a of an internal combustion engine 81 housed in the generator 8 is directed in a direction perpendicular to the flat portion 3 in a state where the generator 8 is mounted on the swing arm 4. The ACG83 is coaxially mounted on the lower end side of the crankshaft 81a, and the ACG83 is disposed below the crankcase 81b of the internal combustion engine 81. As described above, in the generator 8 mounted on the swing arm 4, the ACG83 as a heavy object is disposed in the crankcase 81b side, and therefore, this arrangement contributes to stabilizing the generator 8 and lowering the center of gravity of the vehicle.
In a case where the convex engagement portions 85 of the generator 8 are fitted in the groove-shaped recessed portions 31, respectively, and the power input connector 46 provided on the swing arm 4 side and the power output connector 86 provided on the generator 8 side are connected to each other, as shown in fig. 6, generator-side fastening holes 87 and swing arm-side fastening holes 88 are formed in the generator housing 80 and the swing arm 4 of the generator 8, respectively, such that the positions of the generator-side fastening holes 87 and the positions of the swing arm-side fastening holes 88 are aligned with each other. In this embodiment, the generator-side fastening hole 87 is formed by an internal threaded hole, and the generator 8 is fixed by being fastened to the flat portion 3 of the swing arm 4 by a fastening bolt 89 inserted into the generator-side fastening hole 87 from the swing arm-side fastening hole 88. The illustration shown in fig. 6 is an example, the fastening positions and the number of fastening portions may be appropriately set according to the mode of embodiment, and the swing arm-side fastening holes 88 may be formed of female screw holes, and they may be fixed to each other by fastening bolts 89 from the generator-side fastening holes 87. The generator-side fastening hole 87 and the swing-arm-side fastening hole 88 may be fastened to each other using a bolt and a nut.
Although one embodiment of a scooter type motorcycle according to the present invention has been described, the present invention is not limited to the above-described embodiment, and various modifications other than the above-described configuration are conceivable within a scope not departing from the gist of the present invention. For ease of description, the arrangement of the devices in the lateral direction has been described in accordance with the illustrated embodiments. However, the present invention is not limited to this arrangement, and this arrangement of the device in the lateral direction may be reversed.
[ list of reference numerals ]
1: motorcycle (scooter type motorcycle), 2: body frame, 3: flat portion, 4: swing arm, 4 a: suspension, 5: reduction gear mechanism, 6: battery, 7: travel drive motor, 8: generator, 10: vehicle body cover, 10 c: battery cover portion, 15: rear wheel, 16: rear wheel axle, 18: seat, 22: lower frame, 22 a: horizontal portion front end side, 22 b: horizontal portion rear end side, 23: seat rail, 24: pivot plate (support portion in the invention), 25: pivot, 26: front lower connecting pipe, 27: rear lower connecting tube, 28: floor beam, 31: groove-shaped recessed portion, 31 a: upper groove portion, 31 b: lower groove portion, 31 c: end section, 44: rear vertical wall (vertical wall in the present invention), 45: side vertical wall (vertical wall in the invention), 46: power input connector, 61: power control unit, 71: motor output shaft, 80: generator housing, 80 a: handle, 81: internal combustion engine, 81 a: crankshaft, 81 b: crankcase, 83: ACG (AC generator), 84: fuel tank, 85: male engagement portion, 85 a: enlarged diameter portion, 85 b: bolt, 86: power output connector, 87: generator-side fastening hole, 88: swing arm side fastening hole, 89: and fastening the bolt.
Claims (7)
1. A scooter type motorcycle comprising:
a swing arm (4) whose front end is supported on the vehicle body frame (2) so as to be vertically swingable via a pivot shaft (25) and which supports the rear wheel (15);
a seat (18) disposed above the swing arm (4);
a generator (8) in which an internal combustion engine (81) and an ACG (83) are accommodated, and
a travel drive motor (7) configured to drive the rear wheels (15) such that the rear wheels (15) travel by electric power generated by the generator (8) and stored in a battery (6),
it is characterized in that the preparation method is characterized in that,
the running drive motor (7) and the generator (8) are arranged on the swing arm (4),
wherein the driving motor (7) is mounted on the swing arm (4),
the upper surface of the swing arm (4) disposed behind the pivot (25) has a flat portion (3) on which the generator (8) is mounted,
the generator (8) is arranged below the seat (18) and mounted on the swing arm (4), and
the battery (6) and a power control unit (61) connected to the battery (6) are mounted on a lower frame (22, 22) of the vehicle body frame (2), the lower frame (22, 22) having a support portion (24) for supporting the pivot shaft (25).
2. Scooter according to claim 1, wherein the generator (8) is mounted in a space surrounded by the pivot (25), a bracket (23a) and a rear end portion (41) of the swing arm (4) as seen in a side view, the bracket (23a) is arranged at the rear of a seat rail (23) of the body frame (2) above the swing arm (4), and a rear bumper (17) is connected to the bracket.
3. Scooter type motorcycle according to claim 2, wherein the swing arm (4) comprises vertical walls (44, 45) at the rear side of the flat portion (3) and at one side in the vehicle width direction and no vertical walls at the front side of the flat portion (3) and at the other side in the vehicle width direction, so that the front side and the other side of the flat portion (3) are formed in a flat shape without vertical walls.
4. Scooter according to claim 3, wherein the lower part of the generator (8) comprises a convex shaped engagement portion (85), the flat portion (3) of the swing arm (4) comprises a groove shaped recess portion (31) with which the convex shaped engagement portion (85) is detachably engaged in a direction perpendicular to one of the vertical walls (44, 45), and,
an end section (31c) of the groove-shaped recessed portion (31) on the side where the vertical wall (44, 45) is not formed is formed to be open in the groove direction, and the convex engaging portion (85) and the groove-shaped recessed portion (31) are aligned with each other in position as viewed in the groove direction.
5. Scooter according to claim 4, wherein the generator (8) is an integral body formed by an internal combustion engine (81), an ACG (83) and a fuel tank (84).
6. Scooter according to claim 4 or 5, wherein one of the vertical walls (44, 45) comprises a power input connector (46) with a connection direction parallel to the groove-shaped recess (31) and,
the generator (8) includes a power output connector (86) at a position at which the power output connector (86) is allowed to be connected with the power input connector (46) in a state at which the generator (8) is placed on the flat portion (3) and the convex engagement portion (85) is fitted in the groove-shaped recess portion (31).
7. Scooter according to any one of claims 1-5, wherein with the generator (8) mounted on the swing arm (4), the crankshaft (81a) of the internal combustion engine (81) accommodated in the generator (8) is directed perpendicular to the flat portion (3), and an ACG (83) mounted on the lower end side of the crankshaft (81a) is provided below the crankcase (81b) of the internal combustion engine (81).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019168767A JP6970148B2 (en) | 2019-09-17 | 2019-09-17 | Scooter type electric motorcycle |
| JP2019-168767 | 2019-09-17 |
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| Publication Number | Publication Date |
|---|---|
| CN112519951A CN112519951A (en) | 2021-03-19 |
| CN112519951B true CN112519951B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010971672.2A Active CN112519951B (en) | 2019-09-17 | 2020-09-16 | Pedal type motorcycle |
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| Country | Link |
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| JP (1) | JP6970148B2 (en) |
| CN (1) | CN112519951B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024058264A1 (en) * | 2022-09-16 | 2024-03-21 | 本田技研工業株式会社 | Saddle-type vehicle |
| JP2024085455A (en) * | 2022-12-15 | 2024-06-27 | スズキ株式会社 | Saddle-type vehicle |
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Also Published As
| Publication number | Publication date |
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| CN112519951A (en) | 2021-03-19 |
| JP6970148B2 (en) | 2021-11-24 |
| JP2021046046A (en) | 2021-03-25 |
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