Summary of the invention
The present invention foundes in view of above problem, and its purpose is, provides a kind of without the compression seat cushion, can enough less folding handspike sliding type perambulators of power.
To achieve these goals, the mode that handspike sliding type perambulator of the present invention dwindles with the size of its above-below direction and fore-and-aft direction is folding, comprises a pair of forward foot in a step, a pair of rear foot, a pair of handspike, a pair of seat section's supporting rod and seat cushion; Wherein, described a pair of forward foot in a step direction extension up and down; Described a pair of rear foot direction up and down extends, and its upper end links the upper end of the described forward foot in a step rotationally; Described a pair of handspike direction up and down extends, but its lower end area sliding ground links the described forward foot in a step, and its upper area is extended to the direction than above the described forward foot in a step more; Described a pair of seat section supporting rod direction forwards, backwards extends, and end links the described rear foot rotationally thereafter, and its front end area or zone line link the lower end area of described handspike rotationally; Described seat cushion be disposed between described a pair of handspike and described a pair of seat section supporting rod between, be installed on upper area and the described seat section supporting rod of described handspike.
According to the present invention, perambulator is when folding from deployed condition to folded state, and the front end of seat section supporting rod moves downwards together with handspike, and the lower end area of handspike approaches to seat section supporting rod, but the upper area of handspike is still left section's supporting rod.Therefore, the seat cushion that is installed on the upper area of handspike and seat section supporting rod can be not compressed under folding state, can not become the resistance when stroller.
Folding suddenly for the vehicle body frame that prevents Pushchair, the locked mechanism that keeps deployed condition is set.As one embodiment of the present invention, further there is the deployed condition locked mechanism, described deployed condition locked mechanism keeps seat section supporting rod, and it can't be rotated relative to the rear foot or handspike.According to described embodiment, handspike, seat section supporting rod and the rear foot form the triangle that can't be out of shape, and therefore, can prevent becoming flexible of under deployed condition seat section supporting rod.Therefore, prevent the loosening of seat cushion, improve riding quality.As other embodiments, also can the deployed condition locked mechanism be set to other framing members, limit relatively moving or relatively rotating of two framing members.
As the preferred embodiment of the present invention, the deployed condition locked mechanism is framing member, and the one end links described seat section supporting rod rotationally, and the other end links the described rear foot separably.According to described embodiment, the deployed condition locked mechanism can be set in the rear space of seat cushion.Thus, firmly fix the rotational angle between section's supporting rod and the rear foot.As other embodiments, also can be to a seat section supporting rod end of framework member separably, to the rear foot other end of framework member rotationally.
As the further preferred implementation of the present invention, further comprise back side intersecting member, described back side intersecting member comprises two bar members that are crossed as letter " X " shape, the described a pair of rear foot is supported the upper end of described bar member slidably, and the lower end of described bar member links the described a pair of rear foot rotationally.According to described embodiment, can dwindle to Width, smaller folding hand pusher slide dynamic formula perambulator.As other embodiments, also can link by the framing member do not dwindled to Width a pair of rear foot.
The present invention does not compress seat cushion when stroller, so the operator of perambulator can be with than the simple stroller of power still less always.Therefore, the operation that the operator can be folded with one hand, improve operability.
The specific embodiment
Referring to accompanying drawing explanation embodiments of the present invention.Fig. 1 means the lateral plan of the handspike sliding type perambulator of one embodiment of the present invention.Fig. 2 means the back view of the vehicle body frame of perambulator.Fig. 1 and Fig. 2 mean the deployed condition of perambulator.Fig. 3 means the diagrammatic side view of the perambulator of folded state.Fig. 4 means the back view of the vehicle body frame of folded state.
The contrast of Fig. 1 and Fig. 3 shows clearly, and perambulator is by folding size of having dwindled its above-below direction and Width.Main composition element as vehicle body frame, perambulator comprises framing member, and described framing member is a pair of forward foot in a step 11, a pair of rear foot 14, a pair of handspike 15, a pair of handle member 16, a pair of seat section supporting rod 17, back side intersecting member 18, bottom surface intersecting member 19.
Each forward foot in a step 11 is bar members of the linearity that direction is extended up and down, and its bottom has front-wheel 11w, and end has coupling member 12 thereon.Coupling member 12 is fixed in the forward foot in a step 11, and its front side has cylindrical body 12a, and has extension 12b in quadrate part thereafter.As shown in Figure 1, the bottom of a pair of forward foot in a step 11 in the central part by step member 26 links that can deflection.Opening under the deployed condition of perambulator, step member 26 roughly extends point-blank along Width.
Each rear foot 14 is bar members of the linearity that direction is extended up and down, and its bottom has trailing wheel 14w.The upper end of each rear foot 14 links the extension 12b of coupling member 12 rotationally.Under the deployed condition of perambulator, the relative forward foot in a step 11 of the rear foot 14 is opened with predetermined angular.Follow the jackknife action of perambulator, each rear foot 14 rotates towards the direction that approaches each forward foot in a step 11, and in the folded state shown in Fig. 3 and Fig. 4, each rear foot 14 is with each forward foot in a step 11 in parallel relation, and trailing wheel 14w is positioned at above front-wheel 11w.
Each handspike 15 is bar members of the linearity that direction is extended up and down.When perambulator, during in deployed condition, each handspike 15 is overlapped in the mode in each forward foot in a step 11 with its lower end area and configures, the upper area of each handspike 15 to than each forward foot in a step 11 more the direction of top extend.Each handspike 15 is held in the cylindrical body 12a of coupling member 12 slidably.Along with the jackknife action of perambulator, each handspike 15 sliding downward in each forward foot in a step 11, in the folded state shown in Fig. 3, the lower end butt ground G of each handspike 15.Lower end and the front-wheel 11w of the handspike 15 by kiss the earth G, the perambulator of folded state can erect voluntarily.The lower end area of each handspike 15 is installed with guiding sleeve 13.The extension 13b that described guiding sleeve 13 has cylindrical body 13a and stretches out to its Width inboard at its rear side.The mode that described cylindrical body 13a can slide with the forward foot in a step 11 keeps.Extension 13b passes through pivot 32 front end area or the zone line of support seat section supporting rod 17 rotationally.
The upper end extension of each handspike 15 is provided with handle member 16.The crooked extension of direction that a pair of handle member 16 is more front to the upper end than handspike 15.Therefore, the integral body of handspike 15 and handle member 16 forms the shape that is roughly letter " L ".
In the upper area of each rear foot 14, pair of sliding members 21 is installed slidably.As shown in Figure 2 and Figure 4, pair of sliding members 21 links rotationally with two upper ends of back side intersecting member 18 respectively.Back side intersecting member 18 forms following structure, that is, two bar members are crossed as the shape of letter " X ", take its point of crossing mutually to link as pivot.Two lower ends of back side intersecting member 18 link respectively the bottom of a pair of rear foot 14 rotationally.Under this state, set up back side intersecting member 18 on a pair of rear foot 14, a pair of rear foot 14 is supported two upper ends of back side intersecting member 18 slidably.
Bottom surface intersecting member 19 comprises first leg member and the second leg member that is crossed as letter " X " shape, its leading section links respectively the bottom of a pair of handspike 15 rotationally, and its rear end section connects respectively the zone line of a pair of rear foot 14 in the mode that can rotate.
A pair of seat section supporting rod 17 direction forwards, backwards extends, and its front end area or zone line be the lower end area of connector push rod 15 rotationally, and end links the rear foot 14 rotationally thereafter.The back-end region of seat section supporting rod 17 is fixed with fixed support 17b.One end of the framing member 33 that direction is extended forwards, backwards links fixed support 17b rotationally.In addition, the other end of framing member 33 links the rear foot 14 separably.Specifically, the other end of framing member 33 links the sliding component 21 that is installed on the rear foot 14 separably, and the back-end region of described framing member 33, seat section supporting rod 17 and the zone line of the rear foot 14 form triangle.Under the deployed condition of perambulator, this triangle keeps being out of shape.As mentioned above, framing member 33 and sliding component 21 form the first deployed condition locked mechanism.
Fig. 5 and Fig. 6 mean the lateral plan of the first deployed condition locked mechanism, and Fig. 5 means locking condition, and Fig. 6 means to remove the state of locking.As shown in Figure 5, framing member 33 is set up in section's supporting rod 17 and the rear foot 14 under deployed condition, limits relatively moving of described two framing members (rear foot 14, seat section supporting rod 17).Framing member 33 than seat section supporting rod 17 position above more forwards, backwards direction extend, between an end of framing member 33 and seat section supporting rod 17, contraction is provided with torsion spring 34.Torsion spring 34 supports also to setover upward framing member 33 by fixed support 17b.
The other end of framing member 33 forms notch 35.Notch 35 is the shape of opening upward, can engage with the jut 21p that is formed at sliding component 21.And the bias force by torsion spring 34 maintains described engaging.Thus, framing member 33 links with the rear foot 14.When the bias force with torsion spring 34 is pressed framing member 33 on the contrary, described engaging is removed, and framing member 33 separates from the rear foot 14.
As shown in Figure 1, on a pair of handspike 15 and a pair of seat section supporting rod 17, fabric seat cushion 31 is installed.Seat cushion 31 has upper end 31a, back-rest 31b and the 31c of seat section, wherein, back-rest 31b extends and supports infant's back downwards from upper end 31a, the 31c of seat section connects the lower end of back-rest 31b and supports infant's buttocks and thigh, the sewed product that described upper end 31a, back-rest 31b and the 31c of seat section are continuous hammock shape.The upper end 31a of seat cushion 31 strides across the upper area of a pair of handspike 15, and the 31c of seat section strides across the front end area of a pair of seat section supporting rod 17, and back-rest 31b extends to a 31c of section from upper end 31a.In the present embodiment, upper end 31a is arranged at the position above more than cylindrical body 12a in handspike 15.More detailed, that is, upper end 31a is installed on the upper end of handspike 15.In addition, the front end of seat section supporting rod 17 is more outstanding than handspike 15, and the central portion of seat section supporting rod 17 is positioned at more rear than handspike 15, and the 31c of seat section is installed on respectively front end and the central portion of handspike 15.
Back side intersecting member 18 below is described.In the upper area of intersecting member 18, be provided with the second deployed condition locked mechanism 22 overleaf, be fixed on the intersecting angle of first leg member and second leg member under the deployed condition of perambulator.Described deployed condition locked mechanism 22 comprises first connecting rod 22m, second connecting rod 22n and control member 24, and wherein, the end of described first connecting rod 22m links second leg member rotationally, and the end of described second connecting rod 22n links first leg member rotationally.The other end of the other end of first connecting rod 22m and second connecting rod 22n links mutually by pivot 23, and this first connecting rod 22m and second connecting rod 22n integral body are extended to Width.Further link control member 24 on pivot 23.Control member 24 is held in pivot 23 by 25, hinge, becomes posture upward or posture down.
Under the deployed condition of perambulator, first connecting rod 22m and second connecting rod 22n become at the slightly downward fixing relation in position that surpasses dead point, the fixedly intersecting angle of first leg member and second leg member.When stroller, as shown in the arrow of Fig. 2, with the hand pulling process member 24 that makes progress.Then as shown in Figure 4, become first connecting rod 22m and the second connecting rod 22n state of bending upward.
The folding operation of the handspike sliding type perambulator of present embodiment below is described.
At first the operator of perambulator makes the other end of framing member 33 separate from sliding component 21, removes the first deployed condition locked mechanism.Thus, seat section supporting rod 17 can rotate relative to the rear foot 14.Then, the pulling process member 24 that makes progress as mentioned above, remove the second deployed condition locked mechanism.Thus, each framing member of the inscape of vehicle body frame can rotate.Then, the operator of perambulator is squeeze grip member 16 further pulling process member 24 upwards downwards, thus, each sliding component 21 sliding upward on each rear foot 14, back side intersecting member 18 dwindles to Width as illustrated in fig. 4.Meanwhile, each is stated bright mode and rotates or sliding below framing member, and perambulator becomes folded state from deployed condition.
That is to say, when stroller, the operator is squeeze grip member 16 downwards, handspike 15 sliding downwards as shown in the arrow of Fig. 1.In addition, seat section supporting rod 17 rotates to anticlockwise direction in Fig. 1, and the angle between seat section supporting rod 17 and handspike 15 diminishes, and it is large that the angle between seat section supporting rod 17 and the rear foot 14 becomes.Therefore, perambulator becomes the folded state of Fig. 3 from the deployed condition of Fig. 1.Under folded state, seat section supporting rod 17 is positioned at along the inboard of the Width of the lower end area of handspike 15.
In addition, when stroller, the leading section of bottom surface intersecting member 19 that is linked to the bottom of handspike 15 also moves downwards along with movement downwards of handspike 15, and a pair of rear foot 14 that is linked to the rearward end of bottom surface intersecting member 19 also rotates to the forward foot in a step 11 thereupon.Along with the increase of the bottom amount of movement downwards of handspike 15, the distance between the leading section of bottom surface intersecting member 19 and rearward end is elongated, and bottom surface intersecting member 19 dwindles on its Width.
Under the folded state of perambulator, step member 26 becomes the form of the bending of letter " V " shape.Because seat cushion 31 is sewed products made from cloth, can free bend, so the bending along with the rotation of the sliding of handspike 15 and seat section supporting rod 17 when folding.
As mentioned above, by folding operation, each framing member sliding and rotation of handspike sliding type perambulator, handspike sliding type perambulator dwindles on Width, fore-and-aft direction and above-below direction.When the perambulator of unfolded state, carry out operation contrary to the above.
According to present embodiment, seat section supporting rod 17 direction forwards, backwards extends, and end links the rear foot 14 and its front end area or zone line rotationally by pivot 32 lower end area of connector push rod 15 rotationally thereafter.In addition, seat cushion 31 is arranged at upper area and the seat section supporting rod 17 of handspike 15.Therefore, under folded state, the lower end area of handspike 15 and seat section supporting rod 17 are slightly overlapping, and the upper area of handspike 15 is positioned at the position above more than seat section supporting rod 17.The upper end 31a of seat cushion 31 is arranged at the upper area of handspike 15, the 31c of seat section of seat cushion 31 is arranged at the front end area of section's supporting rod 17 and a zone line, therefore, even under folded state, described upper end 31a also still leaves from the 31c of seat section upward.Therefore, under folded state, seat cushion 31 can be due to the upper area of handspike 15 and seat section supporting rod 17 and compressed, so seat cushion 31 can not become resistance when folding.
In addition, according to present embodiment, under the deployed condition of perambulator, the first deployed condition locked mechanism has framing member 33 and jut 21p, and described the first deployed condition locked mechanism keeps seat section supporting rod 17 can't rotate with respect to the rear foot 14.Therefore, can, to the rear foot 14 joint seat section supporting rod 17 securely, keep the triangle formed by framing member 33, seat section supporting rod 17 and the rear foot 14 to be out of shape.Therefore, can prevent that the seat cushion 31 that in deployed condition, seat section supporting rod 17 is supported is loosening, stable riding quality is provided.
In addition, according to present embodiment, the first deployed condition locked mechanism comprises framing member 33, wherein, one end of described framing member 33 is joint seat section supporting rod 17 rotationally, and the other end links the rear foot 14 separably, therefore, the deployed condition locked mechanism can be set in the rear space of seat cushion 31, and described deployed condition locked mechanism can not hinder the infant who rides in seat cushion 31.
In addition, according to present embodiment, further comprise back side intersecting member 18, described back side intersecting member 18 comprises two bar members that are crossed as letter " X " shape, the described a pair of rear foot 14 is supported the upper end of described bar member slidably, the lower end of described bar member links the described a pair of rear foot 14 rotationally, and therefore, handspike sliding type perambulator also can dwindle to Width.
Above, with reference to accompanying drawing, embodiments of the present invention are illustrated, but the present invention does not limit to embodiment shown in the drawings.For embodiment shown in the drawings, with same range as of the present invention or impartial scope in, can append various modifications or distortion.
Utilizability on industry
Handspike sliding type perambulator of the present invention can be applicable to Childcare apparatus and hand barrow.