TW498039B - Foldable crank for bicycle - Google Patents

Abstract

This invention is related to a foldable crank for a bicycle, comprising: a crank, a coupling arm, a pivoting button, and pedals. The crank is equipped with a crank fitting. The crank fitting includes a connecting slot and the first and the second pivoting holes. The coupling arm is pivoted into the connecting slot of the crank and includes a pivoting head at a pivoting end connecting to the connecting slot. The pivoting head is provided with the first the second, and the third connecting holes. The pivoting button includes a button body, at least the first and the second pivoting rods. An end of each of the first and second pivoting rods is connected to the button body, wherein the first pivoting rod includes a hollow compartment and an urging end. Inside the compartment, it is provided with a pivot rod. The end of the pivot rod corresponding to the opposite end of the button body protrudes out of the first pivoting rod to be connected to a retainer. Between the pivot rod and the first pivoting rod is engaged with a spring. The pedals are connected to the coupling arm. As such, the pedals may be folded in a very efficient space so as to provide a minimum folding volume.

Description

498039 V. Description of the invention (1) [Scope of the invention] The present invention is a vehicle crank that can be quickly folded. Volume: Background of the invention] Pressing, self-cultivation, sports, and people's attention. The volume structure of modern cars has been developed. Folding its maneuverability and multiplicity, each fold makes the entire bicycle effect, with convenient pedals. As the inner plate is bent up to eighty degrees, the nine pedals are erected on the curved product to reduce the width. But it is not perfect. The structure is often used in and related to a foldable crank, especially a foldable crank that provides self-folding and convenience, and can make full use of space to achieve the smallest driving. The car is an appliance, so it is. For the folding handle that has been folded by the suitable knot, the carrying handle and self-bending, the latter on both sides of the ten-degree vertical handle will not be able to be filled, and the operation of the seed transmission, especially the driving with the shrinking structure, The combination of the structure and the loading vehicle will divide the pedals into current or inconvenient alternatives to modern living products that have unique homes or small homes, and most of them will be used for load reduction due to the folding structure design; As the frame is folded or down, the side is straightened to the auxiliary position of the crank with the bicycle tool, and the tool, the quality of the sport is improved, and the important car can be carried on its own, and it must be sufficiently small, and It belongs to the bicycle that is ten degrees away from the hard crank and it is related to the bicycle under the width handle, or it is still a modern one. The convenience of sports, sex and leisure is to use the space to match the folding of the car to achieve the best bicycle. The structural design is straight, but, it is not easy to fold, although it does not take time to fold the pedals between the frames and revise it. , Mention self bicycle parts like phase, before the folded side projections as the former one hundred lines the depression of the body to increase the stack space side, of the crank, cumbersome good, projection

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broken. : Summary of the invention] The main principle of the present invention is to provide a bicycle folding crank that makes full use of empty doors. It has a strong self-folding volume: ::::; Type crank, one purpose of the present invention / recognition of k shell, fast effect.

Its structure is innovative and different from a bicycle folding crank currently provided, in order to make the bicycle folding crank of the present invention. ^ 7 ^, Ιέ gp / V ^ ,,,,, and other features of the structure and other functions have a further understanding of $ $ $ $ $ $ $ $ $ $ $ $ $ $, $, $, $, $, $, $, $, $, $, $, $, $, $, $ 1, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $, $ 1 It includes a crank 1, a handle 2, a pivot button 3 and a pedal 4. One end of the crank i is provided with a crank connection hole 1 1 (as shown in the fifth figure) for connection with the vehicle body component, and the other A crank joint i 2 is provided at the end. The crank joint 丨 2 is slightly door-shaped. It is provided with a connecting slot 13 for pivotal connection with the aforementioned handle 2. In addition, the crank connector 12 is provided with a first pivot. The second pivot hole i 5 on both sides of the hole 丨 4 and the first pivot hole 丨 4, the first pivot hole 14 and the second pivot hole 15 pass through the crank joint 12 and the connecting groove 1 3, and The end of the hole at the slot 13 is provided with push-pull expansion ends 1 4 丨, 1 5 丨. The joint · handle 2 is pivotally provided at the joint groove 13 of the crank joint 12. The pivot joint end of the joint and the joint groove 13 is provided with a pivot joint 21, which is provided with a first joint hole 2 2. Two second connection holes 23 and one third connection hole 24, wherein the second connection hole 23 is provided on both sides of the first connection hole, and the third connection hole 24 is provided on the first connection hole 2 2 Relatively second

Page 5 498039 V. Description of the invention (3) The vertical side of the connection hole 2 3 direction, and the first end of the second connection hole 2 2, the second connection hole 23 and the third connection hole 24 are provided with a push. Expansion end 2 2 1, 2 3 1, 2 4 1 and the other, the pivot joint 2 1 is provided with an arc end 2 5 to facilitate the pivoting operation of the receiving slot 1 3, and the connecting handle 2 is at the pivot joint. The other end of 21 is provided with a handle connection hole 26, and the handle connection hole 26 is arranged perpendicular to the first connection hole 22 to connect the pedal 4. The pivot button 3 includes a pivot body 31. The pivot body 31 is provided with a first screw hole 32 and second screw holes 3 3 on both sides of the first screw hole 32, and the outer side of the pivot body 31 A concave ring surface 3 4 is provided to facilitate the pull operation of the pivot button 3, a first pivot rod 3 5 and a second pivot rod 36 on both sides of the first pivot rod 3 5. One end of the pole post 3 5 and the second locust post 36 are respectively provided with threaded ends 3 5 1 and 3 6 1 for screwing to the first screw holes 32 and the second screw holes of the pivot body 31 respectively. 33 (please refer to the third figure together), and one end of the first pivot connecting rod 35 and the second pivot connecting rod 36 is provided with a pushing end 3 5 4, 3 6 4 for connecting with the first connecting hole. 22. The matching of the push-out expansion ends 221, 231, and 241 of the second connection hole 23 and the third connection hole 24 when resetting and inserting, wherein the first pivot rod 3 5 is provided with a hollow container 3 5 2 and Abutting end 3 5 3 ′ A pivot rod 3 7 is arranged inside the accommodating chamber 3 5 2. The pivot rod 37 is provided with a pivot head 3 7 1 and a pivot screw end 3 7 2. The pivot head 3 7 The diameter of i is about the same as the diameter of the chamber 3 5 2, and a hexagonal wrench hole 3 7 3 is provided, and the pivot 37 is sleeved with a The spring 38 abuts between the abutment end 3 5 3 of the first pivot lever 3 5 and the pivot head 3 7 1 of the pivot lever 37; further, the second pivot lever 3 6 at The other end of the threaded end 3 6 1 is provided with a groove 3 6 2 to facilitate the operation of the screw lock. In addition, a nut 3 9 is used for screwing the pivot lever 3 7, and includes a receiving chamber 3 9 1 and a screw hole 3 9 2. The receiving chamber 3 9 丨 is used for receiving the second = connecting rod 3 5 And the screw hole 3 9 2 is in phase with the pivot screw end 3 7 2 of the pivot rod 3 7

Page 6 4 ^ 8039 V. Description of the invention (4) Screwing; and the handle connecting hole 2 6 of the pedal handle 2 and the lever 3 6 are respectively inserted into the first connecting hole 2 of the curve 2 and the second lever 3 5 protrudes. After the crank is set, the process is completed. Please refer to the section “To move the pivot body at this time, the first pivot rod to the slot 1 3 of the pivot rod 3 7 is screwed to the relative movement of the rod 3 7 to drag the rod 3 7 For axis advancement, release the elastic action of the pivot button body. The re-entry joint hole 2 3 has been rotated to become the third joint hole 2 4 (as in the rear folded position. The space between the frames is the second pivot lever 3 6 bis pivot. The push of the post 3 6 and the reset of the third hole 2 4 can be inserted. The 4 series is provided with a pedal connection ^ Wax pole connection 4 1 is used to connect to the first and the third joint of the button 3 Post 35, one of the second pivot handles 苐-pivot hole 14, * second second pivot hole 15 and adapter 2 brother one connection hole 2 3 'and then use the nut 3 9 to connect the first pivot 1 to the other side The combination of the pivot screw end 3 7 2 of the pivot lever 3 7 and the folding crank of the bicycle fixed with a screw lock. Figures 4 and 5 show that when the pedal 4 of the present invention is to be folded 3 1, it is pulled out to one side of the crank 1 (As shown in the fourth picture), 3 5 and both sides The second pivot link 36 will release the pivot brake of the docking handle 2 outside the space of the pivot body 3 i, and because the nut 39 does not move, the first pivot link 35 and the pivot pair spring 38 compress and store energy. At this time, the shank 2 can be rotated ninety degrees to turn the locust. When the shank 2 is rotated to the position of 3 1 when it is positioned, the first pivot post 3 5 is connected to the shank 2 by the spring 3 8 Hole 2 2 'and because of the second position of the handle 2, the second pivot rod 36 of one of the pivot buttons 3 will enter the sixth figure), that is, the handle 2 is locked again when the pedal is rotated. 4 is folded to the inside of the crank 1 and it is placed with the bicycle. The first pivot post 3 5 is inserted into the first connection hole 2 2 and the third connection hole 2 4, because the first connection post 3 5, the second extraction end 3 5 4, 3 6 4, and the first connection hole 2 2. The second connecting hole 2 3 pushes the extended end 2 2 1, 2, 3 1, 2, 4 1 to make it go smoothly. Furthermore, because of the length of the first pivot rod 3 5

498039

The pivot lever 3 5 is not fully retracted, and it is convenient to design when resetting, so that the pivot hole 3 2 is smooth, and the pivot lever 3 6 can be smooth. Combine the above with the best reduction of the inside of the crank and the structure, and file a patent application. For example, if you are familiar with the technical modifications or changes in this case, [Schematic Symbol Description 1 The crank is inserted into the second car as a talent area and it is placed side by side. The bicycle is empty. However, anyone who is an artist should know how to use it. 'First joint 2 1 之 支 三 接 孔 2 4． Above the crank type, it can be connected to the handle without increasing the efficiency of the space between the frames. It is indeed in accordance with the above description that the structure of the device described in this application is only covered by the helper according to the present invention, which can be borrowed and repositioned, and the lateral width of the vehicle can be interspaced to meet the requirements of the patent for bicycles. The best implementation of the invention is within the scope of the patent. Out of the second area will be fully folded according to the law, etc. 3 Pivot joints 1 1 Crank hole 13 Slot 15 Second drag hole 1 4 1 Push-out extension 2 2 First hole 2 4th Three connection holes 2 6 Connection holes 3 2 First screw holes 3 4 Concave torus 2 Connection 4 Pedal 12 Crank connector 14 First pivot dagger 21 Pivot connector 1 5 1 Push-pull extension 23 Second connection hole 2 5 Fox end 31 柩 button body 3 3 second screw hole 3 5 first 柩 post

498039 V. Description of the invention (6) 36 Second pivot connecting rod 351 Threaded end 361 Threaded end 352 Reservoir 353 Abutting end 37 Pivot rod 371 Zone head 372 Perch rod end 373 Hexagon wrench L 38 Spring 41 Pedal rod 364 Push end 39 Nut 362 Groove 221 Push pull end 231 Push pull end 241 Push pull end 354 Push end 391 Receptacle 392 Screw hole

Page 9 498039 Brief description of the drawings The first diagram is a three-dimensional exploded view of the present invention. The second figure is a schematic combination diagram of the present invention. The third figure is a schematic sectional view of the present invention. The fourth diagram is a schematic sectional view of the operating state of the present invention. The fifth diagram is an unfolded schematic diagram of the present invention. The sixth diagram is a schematic diagram after the present invention is folded.

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Claims (1)

498039 6. Scope of patent application1. A bicycle folding crank, which mainly includes: a crank, which is provided with a crank joint, the crank joint has a receiving slot and a first pivot hole, a second pivot hole, the first pivot The hole and the second pivot hole pass through the crank joint and the connecting groove; a connecting handle is arranged at the connecting groove of the crank, and a pivot joint is connected with the pole end of the connecting groove, and the pivot joint is provided with a first A connecting hole, a second connecting hole and a third connecting hole; a pivot button, comprising a pivot body, at least a first pivot rod and a second pivot rod, and one end of the first and second pivot rods is connected In the pivot body, the first pivot rod is provided with a hollow container chamber and an abutting end, and a pivot rod is provided in the container chamber. The pivot rod protrudes outside the first pivot rod relative to the other end of the pivot body. A positioning member can be connected, and a spring is provided against the top sleeve between the pivot rod and the first pivot connecting rod; a pedal is connected to the connecting handle. 2 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the crank is provided with a crank hole at the other end of the crank joint for connection with the body member. 3. The bicycle folding crank according to item 1 of the scope of patent application, wherein the second pivot holes of the crank are respectively provided on both sides of the first pivot hole. 4 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the second connection holes of the handle are respectively provided on both sides of the first connection hole. 5 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the third connecting hole of the handle is provided on one side of the first connecting hole opposite to the second connecting hole. Page 11 498039 6. Scope of patent application 6 · The bicycle folding crank described in item 1 of the scope of patent application, wherein the pivot joint is provided with an arc end to facilitate the pivoting operation of the groove. The bicycle folding crank according to item 1 of the patent application scope, wherein one end of the pivot rod protruding from the first pivot rod is provided with a pivot screw end, which can be locked by a nut phase screw. 8 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the handle is provided with a handle hole at the other end of the pivot joint for connecting the pedal. 9 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the outer side of the hub body is provided with a concave ring surface to facilitate the pulling operation of the pivot button. 10 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the hub body is provided with a first screw hole and a second screw hole, and the first and second pivot rods are provided with corresponding threaded ends. To screw each other. 1 1 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the pivot rod is provided with a pivot head, and the pivot head can cooperate with the abutting end of the first pivot rod to compress the spring. 1 2 · The bicycle folding crank according to item 11 of the scope of patent application, wherein the pivot head is provided with a trigger hole. 1 3 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the second pivot rod is provided with a groove relative to the other end of the pivot body to facilitate its screw-lock operation. 1 4 · Bicycle folding crank as described in item 1 or 9 of the scope of patent application Page 12 498039 6. The scope of patent application, wherein the pedal is provided with a pedal post, which is used to connect to the handle hole of the handle. 15 · The bicycle folding crank according to item 1 of the scope of patent application, wherein the pivot joint is provided with a push-out enlarged end at the end of the first joint, the second joint and the third joint. 1 6 · The bicycle folding crank described in item 1 of the scope of patent application, wherein the end of the first pivot rod and the second pivot rod is provided with a push-out end. The bicycle folding crank according to the item, wherein the nut is provided with a container for receiving the first pivot rod. Page 13