JP3087893U - Folding bike - Google Patents

Abstract

(57) [Summary] [Problem] To provide a foldable bicycle. SOLUTION: A bicycle body is contracted by operating a plurality of adjusting and positioning devices, and furthermore, when the connecting rod device is folded and the connecting rod device is folded, the connecting rod device drives a transmission mechanism to bend and fold together. It does not generate the structural weakness formed in the device parts such as the locking case, the locking plate, the connecting sheet, the connecting block, etc. like the bicycle, and the device of the locking case, the locking plate, the connecting sheet, the connecting block It saves money, greatly reduces the cost of manufacturing the folding bicycle, and achieves the main part of the folding of the bicycle by the above-mentioned operation, as well as the function of towing or carrying the user.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a kind of folding bicycle.

[0002]

[Prior art]

 Known folding bicycles are equipped with handle folding devices, which consist of two handle means, one head telescopic tube, rivets, mating blocks, mating sheets, mating block flanges, mating connecting pieces, mating eccentrics. The two handle means are each provided with a fitting block and a fitting sheet, a fitting block flange is provided at a front end of the fitting block, and a fitting connecting piece is provided on the fitting sheet. The fitting eccentric shaft is provided at the rear end of the fitting connecting piece, and the rivet is provided at an appropriate portion at the upper end of the head telescopic tube. Separately, there is a horizontal bar front folding device, which is composed of a horizontal bar front connecting block, a horizontal bar front connecting sheet, a locking handle, a locking device, a locking block, and a locking block on one side of the horizontal bar front connecting block. A locking device is provided at the front end of the locking handle. In addition, it is equipped with a horizontal bar rear folding device, which is composed of horizontal bar rear connecting block, horizontal bar rear connecting sheet, locking handle, locking device, and locking block. A stop block is provided, and a lock is provided at the front end of the locking handle. Furthermore, a pedal folding device is provided, which is composed of a fitting bar, a fitting bar stopper block, a spring, a folding block, a folding seat, a pin, a crank arm, a spring stopper block, and a spring stopper at an appropriate portion at a front end of the crank arm. A block is provided, a spring is provided in the fitting bar, and the folding block is mounted in the folding sheet and fixed with a pin, and a fitting bar stopper block is provided at the front end of the folding block. This folding bicycle has a small volume after folding by a folding device of many parts, takes up little space, is light in weight, easy and easy for the user to carry, and compact when carried. It is convenient. However, the handle folding device, the horizontal bar front folding device, and the horizontal bar rear folding device all use the locking method to fix the folded part, and if the user inadvertently forgets the locking operation, the user However, there is a risk that an accident may occur during use. In addition, the mating block, mating sheet, cross bar front connection block, cross bar front connection sheet, cross bar rear connection block, and cross bar rear connection sheet are combined with each other for convenient folding. It is a major part. However, the joints of the mating block, mating sheet, horizontal bar front connecting block, horizontal bar front connecting sheet, horizontal bar rear connecting block, and horizontal bar rear connecting sheet are pivotally connected with pins, and their strength is low. The most vulnerable part of the bicycle structure is that when exposed to external force, the pins may bend, or each connecting sheet or fitting sheet may be deformed, making the bicycle unfoldable. If the locking device or the locking block is rubbed over time, the engagement capacity is reduced, and when the user rides, the engaging portion may open or loosen due to elasticity. There was a risk of causing danger to the user's body. Furthermore, when not in use, the engaging parts of each folded part are expanded and folded, and when further used, they are folded and engaged again to recover the riding state, but this takes considerable time and effort.

[0003] In view of the above, there has been a demand for a structure having a function of improving the function, having a simpler structure, a quick combination, and a function of reliably maintaining safety in order to solve the drawbacks of the conventional structure.

[0004]

[Problems to be solved by the invention]

 The object of the present invention is to provide a kind of folding bicycle, which is any locking case, locking plate, connecting sheet, connecting block required by known folding bicycles to achieve the folding purpose. It is possible to reduce the size of the vehicle body to a minimum by installing an adjustment positioning device, and combine the rotating part of the connecting rod device with the rotary folding of the pivot contact at each point of the rear fork and transmission mechanism. As a result, the purpose of folding the car body is achieved, the cost of manufacturing is greatly reduced, and after folding the bicycle of the present invention, it has an appropriate altitude and is convenient for towing the user, so that the user can easily carry out the present invention. It is assumed that the folding bicycle can be carried.

[0005]

Means for Solving the Problems The invention according to claim 1 is a folding bicycle, comprising a body and a rear upper fork, wherein the rear upper fork is provided with a first end and a second end, and wherein the first end is provided. A first end connected to the rear of the saddle pipe of the vehicle body, and a second end of the rear upper fork connected to the rear wheel; The connecting rod device has a function of generating relative rotation with the vehicle body, and the connecting rod device has a first end and a second end, of which the first end is connected to the saddle pipe and the second end is connected. The connecting rod device connected to the rear wheel; and a transmission mechanism, wherein the transmission mechanism is connected to the saddle pipe, the connecting rod device and the rear wheel, and the transmission mechanism has a power transmission function and a connecting rod device. The above-mentioned transmission mechanism having a function of interlocking rotation, comprising: a connecting rod When the connecting rod device is bent, the connecting rod device is folded, and the connecting rod device is connected to the transmission mechanism and the rear upper fork, and then the connecting rod device is folded. The foldable bicycle is characterized in that the body is in a folded state, and the volume of the body is reduced to a minimum and the vehicle is towed or carried by a user. According to a second aspect of the present invention, in the folding bicycle according to the first aspect, an adjustment positioning device is fixed to an upper end of a handle post of the vehicle body, the handle post is inserted inside the front pipe, and the adjustment positioning device is operated. The folding bicycle is characterized in that the handle post is slidable up and down inside the front pipe. According to a third aspect of the present invention, in the folding bicycle according to the first aspect, an adjustment positioning device is fixed to an upper end of a saddle pipe of the vehicle body, a saddle post is inserted inside the saddle pipe, and the saddle is positioned above the saddle post. The foldable bicycle is characterized in that the saddle post is slidable up and down inside the saddle pipe by operating the adjustment and positioning device. According to a fourth aspect of the present invention, in the foldable bicycle according to the first aspect, a horizontal bar set is provided between a front pipe of the vehicle body and a saddle pipe, and the horizontal bar set includes a front horizontal bar in a rear horizontal bar. Folding characterized by being inserted and formed, provided with an adjusting positioning device at the front end of the rear bar, and controlling the sliding of the front bar inside the rear bar by tightening or loosening the adjusting positioning device. It is a formula bicycle. According to a fifth aspect of the present invention, there is provided the foldable bicycle according to the fourth aspect, wherein a lower bar set is provided below the horizontal bar set, and the lower bar set is formed by inserting the front lower bar into the rear lower bar. An adjustable positioning device is provided at the front end of the rear lower bar, and the sliding of the front lower bar inside the rear lower bar is controlled by tightening or loosening the adjusting positioning device. According to a sixth aspect of the present invention, in the foldable bicycle according to the first aspect, a connecting rod device connects the connecting rod to the rear lower fork, and a first end of the connecting rod device is connected to both lower ends of the front pipe. To form one pivot point, the second end of the rear lower fork has an inverted Y shape, and the rear lower fork is articulated on both sides between the height adjustment piece and the hub to form another pivot point. It is a foldable bicycle characterized by doing. According to a seventh aspect of the present invention, in the foldable bicycle according to the first aspect, the transmission mechanism is composed of a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, and two chains. It is a foldable bicycle.

[0006]

[Embodiment of the invention]

 The present invention provides a kind of folding bicycle. The foldable bicycle 10 of the present invention shown in FIG. 1 is in a use state for use in riding. The handle post 110 of the vehicle body 10 is provided inside the front pipe 111, and an adjustment positioning device 112 is provided at the upper end of the handle post 110. When the adjustment positioning device 112 is in the tightened state, the handle post 110 cannot move inside the front pipe 111, and when the user needs to adjust the height of the handle 113, the adjustment positioning device 112 can be loosened. If the handle post 110 is slid up and down inside the front pipe 111, the handle 113 is adjusted to the required height by the user, and then the adjustment is performed again. The positioning device 112 is tightened to fix the height of the handle post 110. Then, the operation of adjusting the height of the handle 113 is completed.

A saddle post 121 is provided below the saddle 120, and the saddle post 121 is inserted inside a saddle pipe 122, and an adjustment positioning device 123 is provided outside the upper end of the saddle pipe 122, so that the user can If height adjustment is necessary, the saddle post 121 can be slid up and down inside the saddle pipe 122 by loosening the adjustment positioning device 123. After the user adjusts the saddle 120 to the required height, When the height of the saddle post 121 is fixed by tightening the adjustment positioning device 123 again, the operation of adjusting the height of the saddle 120 is completed.

[0008] A horizontal bar set 130 is separately provided, and the horizontal bar set 130 is fixed between the front pipe 111 and the saddle pipe 122. The horizontal bar set 130 has the front horizontal bar 131 inserted inside the rear horizontal bar 132. An adjusting position determining device 133 is provided at the front end of the rear horizontal bar 132, and the slide operation of the front horizontal bar 131 in the rear horizontal bar 132 can be controlled by loosening and tightening the adjusting positioning device 133. . A lower bar set 140 is provided below the horizontal bar set 130. The lower bar set 140 has a front lower bar 141 inserted inside a rear lower bar 142, and the lower bar set 140 is adjusted to the front end of the rear lower bar 142. A positioning device 143 is provided, and the sliding operation of the front lower bar 141 in the rear lower bar 142 can be controlled by loosening and tightening the adjustment positioning device 143. When the user wants to adjust the distance between the handle 113 and the saddle 120, loosen the adjustment positioning devices 133 and 143 of the horizontal bar set 130 and the lower bar set 140, and further, the front horizontal bar 131 and the lower bar of the horizontal bar set 130. The front lower rod 141 of the set 140 is slid back and forth inside the rear horizontal rod 132 and the rear lower rod 142, thereby adjusting the distance between the handle 113 and the saddle pipe 122 to the required distance. After that, the front horizontal bar 131 and the front lower bar 141 can be fixed by further tightening the adjustment positioning devices 133 and 143 for the rear horizontal bar 132 and the rear lower bar 142.

Two convex lugs 150 are provided, and the two convex lugs 150 are provided below the adjusting and positioning device 123 of the saddle pipe 122, and a rear upper fork 160 is provided between the two convex lugs 150. A shock absorber 161 is provided at one end connected to the two convex ears 150 of the rear upper fork 160, a pivot contact is formed at this end, and the other end of the rear upper fork 160 has an inverted Y shape. The two sides of this end are screwed into the groove 171 of the height adjusting piece 170 by two screws 162 and 163. See also FIG. The other ends of the two height adjusting pieces 170 are connected to both sides of the hub 172, and a pivot contact is formed at a connecting portion between the hub 172 and the two height adjusting pieces 170.

A connecting rod device 180 is provided. The connecting rod device 180 has a second end of the connecting rod 181 connected to a first end of one rear lower fork 182, and a connecting rod in the connecting rod device 180. The first end of the lower fork 181 is connected to both lower ends of the saddle pipe 122, that is, forms one pivot contact with the saddle pipe 122, the second end of the lower rear fork 182 has an inverted Y shape, and the lower rear fork 182 It is connected to both sides between the height adjusting piece 170 and the hub 172 to form one pivot contact with the hub 172.

As shown in FIG. 2, the transmission mechanism 190 is composed of a first sprocket 191, a second sprocket 192, a third sprocket 193, a fourth sprocket 194, and two chains 195 and 196. Among them, the first sprocket 191 is connected to the left side of the first end of the connecting rod 181 described above, the third sprocket 193 is connected to the left side of the connecting part between the connecting rod 181 and the lower rear fork 182, and the second sprocket 192 is connected to the second sprocket 192. The third sprocket 193 is connected to the left side, and the fourth sprocket 194 is connected to the hub 172 described above.

[0012] FIG. 5 is a view showing the folding operation of the folding bicycle according to the present invention of FIGS. FIG. 2 shows a state in which the bicycle is folded to a minimum state, and the adjusting and positioning device 112 of the handle post 110 is loosened so that the handle post 110 is retracted inside the front pipe 111, and the rear cross bar 132 and the rear lower If the adjusting and positioning devices 133 and 143 of the rod 142 are loosened, the front horizontal rod 131 and the front lower rod 141 are also contracted into the rear horizontal rod 132 and the rear lower rod 142, and if the height of the saddle 120 is further reduced, the initial position is reduced. The contraction operation of is completed. FIG. 3 shows that after the height of the handle 113 and the saddle 120 of the foldable bicycle is minimized, a downward force is applied to the connecting portion of the connecting rod 181 and the lower rear fork 182 to reverse the connecting rod device 180 which was originally straight. A clockwise rotation is generated, which causes the connecting rod 181 to pivot downward and forward, thereby causing the rear lower fork 182 to pivot downward and forward, and the rear upper fork 160 also to rotate counterclockwise by an angle. Let it. The body is raised by the rotation of the connecting rod device 180, the first sprocket 191 in the transmission mechanism 190 is also raised, and the angle between the first sprocket 191 and the second sprocket 192 is changed. The angle between the fourth sprockets 194 also changes due to the driving of the connecting rod device 180. At this time, the rear wheel 20 is continuously pushed in the direction of the front wheel 30, that is, the connecting rod device 180 and the rear upper fork 160 are also continuously rotated counterclockwise, so that the sprockets 191, 192, 193, 194 The angle also changes with the change in the angle between the connecting rod device 180 and the rear upper fork 160. If the rear wheel 20 cannot move forward toward the front wheel 30, the rear upper fork 160 as shown in FIG. And the saddle pipe 122 are substantially parallel, the connecting rod device 180 forms a triangular shape, and the first sprocket 191, the second sprocket 192, the third sprocket 193, and the fourth sprocket 194 of the transmission mechanism 190 also form a triangular shape. At this time, the volume of the bicycle is folded to a minimum, but it keeps a certain altitude, and the user keeps the altitude after folding the bicycle. Convenient to lead the, there is no need to carry a bicycle.

[0013]

[Effect of the invention]

 As described above, the present invention has the following excellent points. 1. With the folding bicycle according to the present invention, the volume of the bicycle can be reduced, increased, and increased by tightening and loosening the adjusting and positioning devices so as to best match the shape of the user. 2. The foldable bicycle of the present invention has a suitable height after folding the bicycle and is convenient for the user to tow, and the user can fold and hold it like a well-known folding bicycle. The user can easily carry the foldable bicycle of the present invention.

As can be seen from the above, the present invention has industrial applicability, and the same or similar devices are not described in domestic or foreign publications or used in public, It has the requirements for utility model registration. It should be noted that the above description is only for the embodiment of the present invention and does not limit the scope of the present invention, and any modification or alteration of details that can be made based on the present invention is not limited to the scope of the claims of the present invention. Shall belong to

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a partially enlarged view of the present invention.

FIG. 3 is a view showing a folding operation state of the present invention.

FIG. 4 is a view showing a folding operation state of the present invention.

FIG. 5 is a view showing a folding operation state of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Body 110 Handle post 111 Front pipe 112 Adjustment and positioning device 113 Handle 120 Saddle 121 Saddle post 122 Saddle pipe 123 Adjustment and positioning device 130 Horizontal bar set 131 Front horizontal bar 132 Rear horizontal bar 133 Adjustment and positioning device 140 Lower bar set 141 Front lower bar 142 Lower back rod 143 Adjustment positioning device 150 Convex ear 160 Rear upper fork 161 Shock absorber 162, 163 Screw 170 Height adjustment piece 171 Groove 172 Hub 180 Connecting rod device 181 Connecting rod 182 Rear lower fork 190 Transmission mechanism 191 First sprocket 192 Second sprocket 193 Third sprocket 194 Fourth sprocket 195, 196 Chain 20 Rear wheel 30 Front wheel

Claims (7)

[Utility model registration claims] 1. A foldable bicycle, comprising a body, a rear upper fork, a first end and a second end provided on the rear upper fork, a shock absorber provided on the first end, and The rear upper fork has an end connected to the rear of the saddle pipe of the vehicle body and the second end of the rear upper fork connected to the rear wheel, and a connecting rod device. The connecting rod device rotates relative to the vehicle body. The connecting rod device having a function of generating the connecting rod device, the connecting rod device having a first end and a second end, of which the first end is connected to the saddle pipe and the second end is connected to the rear wheel. A transmission mechanism, wherein the transmission mechanism is connected to a saddle pipe, a connecting rod device and a rear wheel, and the transmission mechanism has a function of power transmission and a function of rotating in conjunction with the connecting rod device, The connecting rod device is folded by folding the connecting rod device. Bending occurs Re, when the connecting rod device is folded,
The connecting rod device jointly and bends the transmission mechanism and the rear upper fork, and at this time, the connecting rod device is successively folded to achieve the folded state, and the volume of the vehicle body is reduced to a minimum so that the user can pull or carry the vehicle. Characterized by being offered to
Foldable bicycle. 2. The folding bicycle according to claim 1, wherein an adjustment positioning device is fixed to an upper end of a handle post of the vehicle body, the handle post is inserted inside the front pipe, and the handle post is operated by operating the adjustment positioning device. The folding bicycle is characterized in that it can slide up and down inside the front pipe. 3. The folding bicycle according to claim 1, wherein an adjustment positioning device is fixed to an upper end of a saddle pipe of the vehicle body, a saddle post is inserted inside the saddle pipe, and the saddle is fixed above the saddle post. A foldable bicycle, wherein the saddle post is slidable up and down inside the saddle pipe by operating an adjustment positioning device. 4. The foldable bicycle according to claim 1, further comprising a horizontal bar set between the front pipe and the saddle pipe of the vehicle body, wherein the horizontal bar set inserts the front horizontal bar into the rear horizontal bar. A collapsible bicycle, characterized in that the adjustable positioning device is provided at the front end of the rear bar, and the sliding of the front positioning bar inside the rear bar is controlled by tightening or loosening the adjusting positioning device. 5. The foldable bicycle according to claim 4, wherein a lower bar set is provided below the horizontal bar set, wherein the lower bar set is formed by inserting a front lower bar into a rear lower bar. A folding bicycle, wherein an adjustment positioning device is provided at a front end of the lower bar, and a slide inside the rear lower bar of the front lower bar is controlled by tightening or loosening the adjustment positioning device. 6. The foldable bicycle according to claim 1, wherein a connecting rod device connects the connecting rod to the rear lower fork, and a first end of the connecting rod device is connected to both lower ends of the front pipe. Forming one pivot point, the second of the rear lower fork
A foldable bicycle, characterized in that the end has an inverted Y shape and the lower rear fork is connected on both sides between the height adjusting piece and the hub to form another pivot contact. 7. The foldable bicycle according to claim 1, wherein the transmission mechanism is composed of a first sprocket, a second sprocket, a third sprocket, a fourth sprocket and two chains. bicycle.