JP3084297U - Folding bike - Google Patents

Abstract

(57) [Problem] To provide a foldable bicycle that is small in volume, lightweight, sophisticated, and foldable. SOLUTION: A handle vertical pipe 2 and a front fork 3 pivotally mounted on a front wheel 31 are provided at both ends of a vehicle body front pipe 1, a horizontal rod 4 is connected from the vehicle body front pipe 1, and further supports a saddle 51. It is connected to the saddle support rod 5. A pivot table 4 is provided below the horizontal rod 4 facing the front side of the saddle support rod 5.
1, a set of back forks 6 is connected thereto, and a rear wheel 63 is pivoted. The two plate members of the back fork 6 are provided with a vibration preventing device 7 vertically, a compression part 8 is separately provided on the upper part thereof, and a pivoting ear 52 is formed behind the saddle support rod 5. I have. On the pivotal ear 52, a fitting port 521 serving as a transition path is provided corresponding to the compression component 8. The compression part 8 is inserted
In this case, the vibration preventing device 7 is placed vertically between the pivot ear 52 and the back fork 6.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a foldable bicycle, and more particularly to a foldable bicycle in which a vehicle body is completely folded and occupied space is small.

[0002]

[Prior art]

 Bicycles are widely used because they are convenient to go out and are also effective for promoting health, and bicycles are designed in various types. Small bicycles that are functional, small in volume, lightweight and portable are the current trend.

[0003]

[Problems to be solved by the invention]

 However, this type of small bicycle has some inconveniences in use. When a bicycle is not used, or when using other means of transportation (such as a train), the fixed structure is inconvenient because the car body cannot be folded and occupies a large space. Even if the body is lighter and smaller than an ordinary bicycle, it is large enough in a small space, making it inconvenient to carry. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a foldable bicycle that is small in volume, lightweight, sophisticated, and foldable.

[0004]

[Means for Solving the Problems]

 A foldable bicycle according to claim 1 of the present invention for solving the above-mentioned problems is provided with a handlebar vertical tube and a front fork on which front wheels are pivotally mounted at both ends of a vehicle body front tube. The horizontal rod is provided so as to extend, and the saddle support rod that supports the saddle is connected to the horizontal rod, and a pivot base is fixed below the horizontal rod provided in front of the saddle support rod, and A foldable bicycle in which a pair of back forks are connected and the back forks are connected to the rear wheels.

A vibration prevention device is provided vertically on two plates of the back fork, a compression component is provided on an upper portion of the vibration prevention device, and a pivotal ear is formed on a peripheral edge of the saddle support rod. The ears are provided with transitional inlets corresponding to the compression parts on the upper part of the vibration eliminator, and the compression parts of the vibration eliminator are held down by the pivotal ears and located in the same position. Is located vertically between the pivot ear and the back fork.

[0006] When folded, the compression parts are loosened, the anti-vibration device is disengaged from the insertion hole of the pivot ear, and the back fork rotates downward with the anti-vibration device about the pivot base and is folded. . A compression component according to a second aspect of the present invention is the compression component according to the first aspect, characterized in that the compression component includes a quick detachable lever and a positioning nut.

[0007]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, as shown in FIGS. 1, 2 and 3, in the folding bicycle according to one embodiment of the present invention, the vertical pipe of the handle portion is mainly divided into steps, and the whole is folded on the side of the vehicle body. This is a form in which the fork rotates and is folded on the front wheel.

A handle vertical pipe 2 is connected to the upper end of the vehicle body front pipe 1 by a pipe bundle 11, and the handle vertical pipe 2 is a two-stage pipe body and is mutually connected by a pipe bundle 21. A bent pivotal structure 22 is provided at the end of the lower handlebar 2 at the end of the vertical tube 2, and is built into the vehicle body front tube 1 when opened (this structure is not an important point of the present invention, so a detailed description will be omitted). Omitted, see Fig. 4). A front fork 3 and a front wheel 31 are connected below the front pipe 1 of the vehicle body. An arc-shaped horizontal rod 4 extends rearward from a peripheral edge of the front pipe 1 of the vehicle body, and the saddle is extended. The saddle support rod 5 is connected to the supporting saddle support rod 5. The saddle support rod 5 is vertically provided with a saddle 51, and two opposing pivotal ears 52 are molded rearwardly at the rear peripheral edge thereof. Is provided. A hollow pedestal 41 is formed around the bottom edge of the horizontal rod 4, and a back fork 6, which is a set of plates, is connected to the pivot pedestal 41.

A perforation 61 penetrates through the two plates of the back fork 6 so as to face each other, and two pedals 62 penetrate the back fork 6, and furthermore, a rear end thereof has A rear wheel 63 is provided. A cylindrical pin 71 is inserted into the vibration preventing device 7 at the upper and lower two-step end of the device, and rings 72 are fitted at both ends of the vibration preventing device 7 provided with the cylindrical pin 71. The tip is provided on the perforation 61 of the back fork 6 by the pivoting component 9, and the upper portion is located at the fitting port 521 of the pivoting ear 52 by the compression component 8. The compression component 8 is constituted by a quick mounting / removing lever 81 and a positioning nut 82, and is inserted into a cylindrical pin 71 above the vibration preventing device 7.

When used in a normal state, as shown in FIG. 3, the bottom end of the vibration preventing device 7 is provided on the back fork 6 with a pivotal component 9, and the quick detachable lever 81 and the positioning nut 82 of the compression component 8 are provided. By being tightened, the clamping force is increased by hitting the two side surfaces of the fitting inlet 521 of each pivoting ear 52 (see FIG. 5), and the vibration preventing device 7 is connected between the pivoting ear 52 of the saddle support rod 5 and the back fork 6. Localize vertically between. With the above design, when the rear wheel 63 hits the convex surface of the road while traveling on an uneven road, the back fork 6 is linked to rotate around the pivot table 41 connected to the upper end, By moving the vibration preventing device 7 upward, the rear wheel 63 receives and absorbs the height difference of the road surface and the vibration energy transmitted to the back fork 6, thereby maintaining stability and comfort during bicycle running.

When folding, as shown in FIG. 4, first open and loosen the tube bundle 21 of the handle vertical tube 2, and insert the upper handle vertical tube 2 into the lower handle vertical tube 2 to reduce the length of the tube body. Is done. Further, after removing the tube bundle 11 on the vehicle body front tube 1, the handle vertical tube 2 is pulled out, and the bent pivotal structure 22 at the bottom end of the handle vertical tube 2 is exposed at the front end of the vehicle body front tube 1. The handle vertical tube 2 is rotated around the center by the bent pivot structure 22, and is bent along the side of the vehicle body corresponding to the vehicle body front tube 1. As shown in FIGS. 5 and 6, the quick detachable lever 81 fixed on the pivotal ear 52 is loosened, and the quick detachable lever 81 is loosened from the positioning nut 82. When the back fork 6 is turned around the pivot base 41 and moved downward again, the pivoting point is removed from the saddle support rod 5 so as to correspond to the insertion port 521 of the pivot ear 52. The movement preventing device 7 is bent in accordance with the back fork 6, and the back fork 6 is fitted to the horizontal rod 4 in a vertical state, thereby saving space.

[0012]

[Effect of the invention]

 As explained above, the foldable bicycle of the present invention is provided with a handlebar vertical tube and a front fork pivotally mounted on the front wheel at both ends of the vehicle body front pipe, and is connected to the horizontal rod from the vehicle body front pipe, and further, It is connected to the saddle support rod that supports the saddle. A pivot stand is provided below the horizontal rod facing the front side of the saddle support rod, and a set of back forks is connected to it, and the rear wheels are pivoted. The two plates of this back fork are provided with a vibration prevention device vertically, a separate compression part is provided above the vibration prevention device, and a pivoting ear is molded behind the saddle support rod. I have. On the pivotal ear, there is provided a fitting entrance serving as a transition path corresponding to the compression component of the vibration preventing device. The compression element of the anti-vibration device hits the entry point of the pivot ear, and the anti-vibration device is placed vertically between the pivot stand and the back fork. When folding, loosen the compression parts, remove the anti-vibration device correspondingly from the insertion hole of the pivot ear, and then rotate the back fork with the anti-vibration device around the pivot base and fold it down. With. This is effective in completely folding the vehicle body and reducing the occupied space.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a foldable bicycle according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the foldable bicycle according to the embodiment of the present invention;

FIG. 3 is a side view showing the foldable bicycle according to the embodiment of the present invention;

FIG. 4 is a side view of the folding bicycle according to the embodiment of the present invention, in which the handle vertical tube is folded.

FIG. 5 is a rear view of the folding bicycle according to the embodiment of the present invention, showing a state in which a compression part is removed.

FIG. 6 is a side view showing a state in which the back fork of the foldable bicycle according to the embodiment of the present invention is folded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body front pipe 2 Handle vertical pipe 3 Front fork 4 Horizontal rod 5 Saddle support rod 6 Back fork 7 Vibration prevention device 8 Compression part 9 Pilot part 11 Pipe bundle 21 Tube bundle 31 Front wheel 41 Pilot table 51 Saddle 52 Pilot ear 63 Rear wheel 81 Quick release lever 82 Positioning nut 521 Fitting entrance

Claims (2)

[Utility model registration claims] 1. A handlebar vertical pipe and a front fork having a front wheel pivotally provided at both ends of a vehicle body front pipe, and a horizontal rod extending from the vehicle body front pipe,
A saddle support rod supporting the saddle is connected to the horizontal rod,
A foldable base is fixed below the horizontal rod provided in front of the saddle support rod, a pair of back forks is connected to the pivot base, and the back fork is connected to a rear wheel. A bicycle, wherein a vibration prevention device is provided vertically on two plates of the back fork, a compression component is provided on an upper portion of the vibration prevention device, and a pivoting ear is provided at a peripheral edge of the saddle support rod. Is formed at the pivotal ear, and a fitting port forming a transition path is provided corresponding to the compression component at the upper part of the vibration preventing device, and the compression component of the vibration preventing device is held down by the fitting port of the pivot ear. And the anti-vibration device is placed vertically between the pivot ear and the back fork, and when folded, the compression component is loosened and the anti-vibration device is inserted into the pivot ear Removed from the back fork The pivot 設台 rotates downward together with the vibration preventing device in the axis, folding bicycle, characterized in that it is Oriawa. 2. The foldable bicycle according to claim 1, wherein the compression component has a quick-release lever and a positioning nut.