JP3173651U - Folding bicycle - Google Patents

Abstract

[PROBLEMS] To provide a folding bicycle that has a simple folding structure and can reduce an occupied area, can be folded upright with a rear wheel down in a longitudinal direction of a vehicle body, and can be moved in a folded state.
In a folding bicycle equipped with a loading platform on the rear end side of a vehicle body and can be folded from the front of the middle of the front and rear wheels, brackets are fixed on both sides of the rear edge of the loading platform, and a roller is attached to each bracket. The left and right front cargo bed support bars of the cargo bed are extended from the front cargo bed support bolt hole, and a grip portion is bridged at the protruding end portions of the left and right front cargo bed support bars.
[Selection] Figure 3

Description

  The present invention relates to a folding bicycle, and relates to a folding bicycle that can be erected in a folded state with the rear wheel down in the longitudinal direction of the vehicle body and can be moved by rolling the floor with rollers attached to both sides of the rear edge of the loading platform. .

  There are quite a few folding bicycles on the market, and these bicycles can be folded to an appropriate size when not in use to reduce the occupied space, but in many cases the limit is about half the total length of the bicycle. Moreover, the movement in the folded state is difficult. Although some folding bicycles are in a folded state that is less than half of the total length and are easy to move, the folding structure is quite complicated, and its deployment and folding operations are difficult and inconvenient.

Japanese Patent Application No. 2000-6085

  In view of the problems related to the conventional bicycle storage area and folding movement, the present invention has a simple folding structure that can reduce the occupied area, and can stand upright with the rear wheel down in the longitudinal direction of the vehicle body. An object of the present invention is to provide a folding bicycle that can be moved by rolling the floor surface with rollers attached to both sides of the rear edge of the vehicle.

  In order to achieve the above object, the present invention provides a folding bicycle having a loading platform on the rear end side of the vehicle body, which can be folded forward from the middle of the front and rear wheels, with brackets fixed on both sides of the trailing edge of the loading platform. 1 and 2, the left and right front loading platform support bars of the loading platform are extended from the front loading platform support bolt holes, as shown in FIGS. 1 and 2, and the protruding ends of the left and right front loading platform support rods are extended. The grip part is bridged to the part.

The planes of the rear edge of each roller and the rear edge of the rear wheel of the bicycle are positioned on a plane at an angle at which the bicycle does not fall down with respect to the longitudinal direction of the vehicle body, or the bracket is welded to the loading platform. The bracket is formed into a substantially inverted triangular connecting piece, a shaft hole is provided at the rear end of the connecting piece, and the roller is attached to the shaft hole. It can also be set as the structure which attaches to the said loading platform by screwing.

The present invention configured as described above is folded at the front of the middle of the front and rear wheels of the bicycle, with brackets fixed on both sides of the rear edge of the loading platform, and the rear edge of each roller attached to each bracket. And the rear edge of the rear wheel of the bicycle are positioned on a plane at an angle at which the bicycle does not fall with respect to the longitudinal direction of the vehicle body. By supporting the rear wheel, the bicycle can stand upright stably without falling down, and the occupied area of the bicycle can be reduced, and in the folded state, the grip portion can be pulled and rolled by a roller and moved.

  As described above, in the present invention, as shown in FIG. 3, brackets are fixed on both sides of the rear end edge of the loading platform, and the rear end edge of each roller attached to each bracket and the rear end edge of the bicycle rear wheel. Because the plane at the top is positioned on a plane that does not allow the bicycle folded relative to the longitudinal direction of the car body to fold, the front wheel floats against the floor by folding it forward from the middle of the front and rear wheels of the bicycle. When the rear wheel is made to stand upright, the two wheels and the rear wheel are supported with respect to the floor surface so that the rear wheel can stand up stably without falling down, and the occupied area of the bicycle can be reduced, as shown in FIG. Thus, in the folded state, the grip part can be pulled by hand and rolled by a roller to move.

1 is a side view of a first embodiment of the present invention. It is a three-dimensional exploded view of the loading platform, bracket, roller, and grip portion of the first embodiment. It is a side view which shows the direct placement state of the said 1st Example. It is a side view which shows the movement state using the roller of the said 1st Example. It is a figure which shows the vehicle body inclination by changing the left-right roller attachment position of the said 1st Example.

  Hereinafter, although this invention is demonstrated concretely based on embodiment, this invention is not limited only to this example. First, as shown in FIGS. 1, 2, and 3, a relatively preferred embodiment of the folding bicycle according to the present invention is the main structure of the bicycle 10 in which a folding portion 31 is located closer to the front than the middle of the front and rear wheels. The front fork 13 is connected to the lower end side of the head pipe 12 equipped with the upper pipe 11 and the handle folding part 19, and the front wheel 14 is attached to the projecting end of the front fork 13, and the rear end of the upper pipe 11 is attached. A vertical pipe 15 and a back fork 16 are fixed, a rear wheel 17 is attached to the tip of the back fork 16, and a loading platform 18 is disposed between the back fork 16 and the vertical pipe 15 above the rear wheel 17. It has a structure erected to be positioned.

The feature is that a set of brackets 20 consisting of connecting pieces 21 having a substantially inverted triangular shape are fixed to the rear end edge of the loading platform 18 by welding, and a shaft hole 211 is formed at the rear end of the connecting pieces 21. A pair of rollers 22 is rotatably attached to the connecting piece 21 by means of bolts 221 and nuts 223 via the shaft hole 222 and the connecting hole 21 and the rear end edge 224 of both rollers 22. And the rear end edge 171 of the rear wheel 17 of the bicycle is positioned on a plane at an angle at which the bicycle does not fall with respect to the longitudinal direction of the vehicle body. Further, as shown in FIG. 2, the left and right front load carrier support rods 23 of the load carrier are extended from the front load carrier support bolt hole 251 and the grip portion 32 is bridged to the protruding end portion 33 of the left and right front load carrier support rods 23. It is to have done. Furthermore, the left and right front loading platform support bars 23 can be provided with a length adjusting function having the same structure as the grip height adjusting mechanism of the caster bag.

The above is the feature of the embodiment of the present invention and the outline of each member, and then the usage mode of the present invention is described. As shown in FIGS. 1, 2, and 3, in the bicycle according to the relatively preferred embodiment of the present invention, the bracket 20 is welded and fixed to both sides of the rear edge of the loading platform 18, and the roller 22 is attached to both brackets 20. As a result, the two rollers 22 and the rear wheel 17 provide a three-point plane support effect, and the folding part 31 provided on the upper pipe 11 of the folding bicycle is folded and placed so that the rear wheel faces downward. And the three-point plane support effect makes it possible to stably and vertically stand up the entire folded bicycle 10, reducing the occupied area necessary for parking the bicycle 10, Due to the three-point support effect of the rear wheel 17, the grip portion 32 of the bicycle 10 that is vertically upright can be gripped by hand and the floor surface can be rolled by both rollers 22 to be moved conveniently. In addition, even if the front wheel is a heavy folding bicycle or an electric assist type folding bicycle equipped with a motor or battery, the left and right rollers 22 can be attached as shown in FIG. 5 even when the center of gravity is outside the center in the folded state. It is also possible to change the position and provide an inclination θ from the same plane orthogonal to the installation angle of the bicycle so that it can be installed more stably and easily moved.

10: Bicycle 11: Upper pipe
12: Head pipe 13: Front hawk
14: Front wheel 15: Vertical pipe
16: Backhawk 17: Rear wheel
171: Rear edge of rear wheel 18: Loading platform
19: Handle folding part 20: Bracket
21: Connecting piece 211: Shaft hole
22: Roller 221: Bolt
23: Front loading platform support rod 24: Rear loading platform support rod
31: Folding part 32: Grip part
33: Tip
222: Shaft hole 223: Nut
224: Roller rear edge 251: Front loading platform support bolt hole
252: Rear cargo support bolt hole

Claims (4)

In a folding bicycle equipped with a loading platform at the rear end of the vehicle body, brackets are fixed on both sides of the trailing edge of the loading platform, rollers are attached to each bracket, and the left and right front loading platform support rods of the loading platform are moved to the front loading platform support bolt holes. A folding bicycle characterized in that a grip portion is bridged at the protruding end portions of the left and right front cargo bed support bars extended from the left and right sides. The plane of the rear end edge of each roller and the rear end edge of the rear wheel of the bicycle is positioned on a plane at an angle at which the bicycle does not fall with respect to the longitudinal direction of the vehicle body. Folding bike. The folding bicycle according to claim 1, wherein the folding position of the bicycle is closer to the front than the middle of the front and rear wheels. The folding bicycle according to claim 1, wherein the front loading platform support bar includes a length adjusting mechanism.

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