CN1221432C - Folding bicycle crank - Google Patents
Folding bicycle crank Download PDFInfo
- Publication number
- CN1221432C CN1221432C CN 01124292 CN01124292A CN1221432C CN 1221432 C CN1221432 C CN 1221432C CN 01124292 CN01124292 CN 01124292 CN 01124292 A CN01124292 A CN 01124292A CN 1221432 C CN1221432 C CN 1221432C
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- China
- Prior art keywords
- hole
- crank
- pivot
- folding bicycle
- handle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motorcycle And Bicycle Frame (AREA)
Abstract
The present invention relates to a folding crank of a bicycle, which is a bicycle component which has the advantages of full use of space, volume reduction after being folded, simple operation and quick folding operation. The folding crank of a bicycle comprises a crank, a connection handle, a pin joint crank, a pin joint button of the connection handle, and a pedal assembled on the connection handle, wherein one end of the crank is provided with a crank joint provided with a connection groove, and a first pivoted hole and a second pivoted hole which are penetrated through the crank joint and the connection groove. The end of the connection handle is provided with a pin joint head which is pivoted and corresponding to the connection groove of the crank joint. A first connection hole, a second connection hole and a third connection hole are arranged in the pin joint head. The pin joint button comprises a pin joint button body, a first pin joint rod and a second pin joint rod which are assembled on the pin joint button body and a pivoted rod, wherein the first pin joint rod is provided with a containing chamber which is formed with an inner notch and used for containing the pivoted rod. The pivoted rod convexly extends out of the first pin joint rod and is connected with a positioning piece corresponding to the other end of the pin joint button body. A spring sheathed on the pivoted rod is arranged between the pivoted rod and the first pin joint rod.
Description
Technical field
The invention belongs to bicycle assembly parts, particularly a kind of folding bicycle crank.
Background technology
Bicycle is a kind of traditional walking-replacing tool, also is a kind of leisure, sports requsites, the especially raising of modern life quality, and motion, leisure are subjected to people's attention deeply, so the mobility and the nature of leisure of bicycle institute tool uniqueness are had deep love for by the modern.And be to cooperate at home or the comfort feature of going out to carry, the volume structure of bicycle has suitably been dwindled, folding structure and the most important thing is to have developed at bicycle, makes bicycle more can cooperate automobile etc. to improve its manoevreability and collocation property.Because the folding position of Folding Bicycle is quite a lot of, the structure design at each folding position must make full use of the space, and whole the volume behind the bicycle folding greatly reduced, thereby reaches best folding effect, carries and load utilization with convenient its.Belong to the side-prominent pedal of bicycle two,, be difficult to make the bending of pedal,, or down bend 90 ° and straighten so general collapsible crank structure designer up bends 90 ° with pedal to hold up toward 180 ° in interior work because of the distance between crank and bicycle support body.The former erects pedal and is against the crank both sides, will increase its lateral width, unfavorable folding volume downsizing; The latter straightens pedal in the crank below, though unlikely increase lateral width is also failed to make full use of the space between crank and bicycle support body, thereby do not attained perfect.
Moreover the folding crank structure of its relevant pedal of existing bicycle, often in operation or the instrument of need auxiliary, or during operating cost, loaded down with trivial details, also have it to use operation to go up inconvenience.
Summary of the invention
The purpose of this invention is to provide a kind ofly make full use of the space, dwindle volume after folding, easy and simple to handle, folding fast speed folding bicycle crank.
The present invention includes crank, connect handle, articulate crank and connect the pivot joint button of handle and be connected to the pedal that connects on the handle; Crank one end is provided with the crank joint, and the crank joint is provided with access slot, runs through first and second pivot hole of crank joint and access slot; Connect pommel and be provided with pivot connector corresponding with crank joint access slot and that articulate; Pivot connector is provided with first, second and third and connects the hole; Articulating button comprises pivot button body, is mounted on first and second pivoted pole and hinged arm on the pivot button body; First pivoted pole is provided with the room that is installed with hinged arm that forms inner stopper; It is outer and connect locations that the other end of the relative pivot button of hinged arm body stretches out first pivoted pole; Be provided with the spring that is sheathed on the hinged arm between the hinged arm and first pivoted pole.
Wherein:
The crank other end is provided with car body member bonded assembly crank and connects the hole.
Be arranged on the crank joint two second pivot holes and be located at both sides, the first pivot hole respectively.
Be arranged at and connect on the handle pivot connector two second and connect the hole and be located at first respectively and connect the both sides, hole.
Connecing on the handle pivot connector the 3rd connects the hole and is located at first and connects the hole and connect the vertical side of hole direction with respect to second.
Pivot connector forms the arc end in order to its pivot action in access slot.
Hinged arm stretches out the first pivot joint rod end and is provided with hinged arm spiral shell end; Locations is the nut of screw lock in the hinged arm spiral shell end of hinged arm.
Connecing the handle other end is provided with the handle that connects pedal and connects the hole.
Pivot button body lateral surface is provided with the scrobicular ring face in order to operation pivot button body.
Pivot button body be provided with the crank joint on corresponding first and second screw in first and second pivot hole; First and second pivoted pole is mounted on pivot button body end and is respectively equipped with thread end corresponding with first and second screw on the pivot button body and that be spirally connected.
It is corresponding with the first pivoted pole room diameter and cooperate the hinged arm head of the first pivoted pole inner stopper contact spring that the hinged arm other end is provided with diameter.
The hinged arm head is arranged with hexagonal and pulls the hole.
First, second and third nose end that connects the hole that connects the handle pivot connector is respectively equipped with the big end of taper hole.
First and second pivot hole forms the big end of taper hole in the access slot end on the crank joint.
First and second pivoted pole other end is provided with is convenient to be plugged in the awl end that first, second and third connects the hole.
Second pivoted pole awl end is provided with the groove that utilizes the screw lock operation.
Step on the handle that is provided with and connects handle and connect hole bonded assembly pedal extension bar.
Screw on the nut has reaming; The corresponding also cover of reaming is organized in first pivoted pole.
Owing to the present invention includes crank, connect handle, articulate crank and connect the pivot joint button of handle and be connected to the pedal that connects on the handle; Crank one end is provided with the crank joint, and the crank joint is provided with access slot, runs through first and second pivot hole of crank joint and access slot; Connect pommel and be provided with pivot connector corresponding with crank joint access slot and that articulate; Pivot connector is provided with first, second and third and connects the hole; Articulating button comprises pivot button body, is mounted on first and second pivoted pole and hinged arm on the pivot button body; First pivoted pole is provided with the room that is installed with hinged arm that forms inner stopper; It is outer and connect locations that the other end of the relative pivot button of hinged arm body stretches out first pivoted pole; Be provided with the spring that is sheathed on the hinged arm between the hinged arm and first pivoted pole.When desire folds pedal, pivot button body is pulled out toward the crank outside, first pivoted pole moves relative to the hinged arm by the locations location with its inner stopper compression spring, makes compressed spring energy-storage; First and second pivoted pole is with this displacement body of pivot button, and makes two second pivoted poles be moved to outside the crank joint access slot, removes the restriction of its butt joint handle pivot connector; Connecing handle promptly can pivot 90 ° for axle by hinged arm, handle to be connect rotates to the 3rd when connecing corresponding folding position, the second pivot hole, hole and crank joint top, decontrol pivot button body, under the spring power effect that is compressed accumulation of energy, first pivoted pole and two second pivoted poles are spurred towards crank joint access slot direction, to make first pivoted pole and two second hinged arms insert the first pivot hole of crank joint respectively, two second pivot holes and connect first of handle pivot connector and connect hole and the 3rd and connect the hole, promptly will connect handle again and be equipped in folding position, rotation back, pedal will be folded to locus between the inboard and bicycle support body of crank; Promptly conveniently connect the rotation of handle and reorientate by the drawing that articulates button, release, thereby, pedal can be folded to the optimum position, neither increase the bicycle lateral width, can make full use of the space between crank inboard and the bicycle support body again, thereby reach the effect in the best reduced volume of bicycle folding structure space; Not only can make full use of the space, dwindle volume after folding, and easy and simple to handle, fast folding, thus reach purpose of the present invention.
Description of drawings
Fig. 1, for decomposition texture schematic isometric of the present invention.
Fig. 2, for structural representation block diagram of the present invention.
Fig. 3, for structural representation section-drawing of the present invention.
Fig. 4, for serviceability scheme drawing of the present invention.
Fig. 5, for structural representation lateral plan of the present invention (not folded state).
Fig. 6, for structural representation cutaway view of the present invention (not folded state).
Fig. 7, for structural representation lateral plan of the present invention (folded state).
Fig. 8, for structural representation cutaway view of the present invention (folded state).
The specific embodiment
As shown in Figure 1 and Figure 2, the present invention includes crank 1, connect handle 2, articulate button 3 and pedal 4.
As Fig. 1, shown in Figure 6, crank 1 one ends are provided with car body member bonded assembly crank and connect hole 11, and its other end is provided with the crank joint 12 that slightly is Jiong shape, and crank joint 12 is provided with access slot 13, the first pivot hole 14 and is positioned at two second pivot holes 15 of 14 both sides, the first pivot hole.Crank joint 12 and access slot 13 are run through in first and second pivot hole 14,15, and form the big end 141,151 of taper hole in access slot 13 ends.
Connect the handle that handle 2 two ends are respectively equipped with and the pivot connector 21 that articulate corresponding with crank joint 12 access slots 13 and are used to connect pedal 4 and connect hole 26.In pivot connector 21 be provided with crank joint 12 on the first pivot hole 14, the second pivot hole 15 corresponding first connect hole 22, two second and connect hole 23 and the 3rd and connect hole 24.Two second connect hole 23 is positioned at first and connects 22 both sides, hole, and the 3rd connects hole 24 is located at first and connects hole 22 and connect the vertical side of hole 23 directions with respect to second; First, second and third nose end that connects hole 22,23,24 is respectively equipped with the big end 221,231,241 of taper hole; The arc end 25 that pivot connector 21 forms in order to its pivot action in access slot 13.It is to be with respect to first to connect hole 22 vertical direction settings that handle connects hole 26.
Articulate button 3 and comprise pivot button body 31, first pivoted pole 35, two second pivoted poles 36, hinged arm 37, spring 38 and nut 39.
As Fig. 1, shown in Figure 3, the length of first pivoted pole 335 is greater than the length of second pivoted pole 36.The two ends of first and second pivoted pole 35,36 are respectively equipped with correspondence and are bolted in the thread end 351,361 of pivot button body 31 first and second screws 32,33 and are convenient to be plugged in the awl end 354,364 that first, second and third connects the big end 221,231,241 of hole 22,23,24 taper holes.First pivoted pole 35 is provided with the room 352 that forms inner stopper 353.Second pivoted pole, 36 awl ends 364 are provided with the groove 362 that utilizes the screw lock operation.
Hinged arm 37 two ends are respectively equipped with hinged arm head 371 and hinged arm spiral shell end 372; Hinged arm head 371 diameters are corresponding with first pivoted pole, 35 rooms, 352 diameters and be arranged with hexagonal and pull hole 373.
Be arranged at behind the sheathed spring 38 on the hinged arm 37 in first pivoted pole, 35 rooms 352, and make spring 38 two ends be resisted against respectively between the hinged arm head 371 of first pivoted pole, 35 inner stoppers 353 and hinged arm 37.
Pedal 4 be provided with connect handle 2 on handle connect hole 26 corresponding and bonded assembly pedal pipe links 41.
During assembling, as Fig. 2, shown in Figure 3, pedal 4 with its upper footboard pipe link 41 with connect handle 2 on handle connect hole 26 and be connected; First pivoted pole 35 and two second pivoted poles 36 are bolted in respectively in pivot button body 31 first and second screws 32,33 with its thread end 351,361; Be located in behind the hinged arm 39 sheathed springs 38 in first pivoted pole, 35 rooms 352, and make spring 38 two ends be resisted against respectively between the hinged arm head 371 of first pivoted pole, 35 inner stoppers 353 and hinged arm 37; Connecing handle 2 is placed in crank joint 12 access slots 13 with its pivot connector 21; Insert the first pivot hole 14, the two second pivot holes 15 of crank joint 12 respectively and connect first of handle 2 pivot connectors 21 with the awl end 351,361 of first pivoted pole 35 and two second pivoted poles 36 and connect hole 22, two second and connect in the hole 23; And fix by hinged arm spiral shell end 372 screw locks that nut 39 spiral shells are located at hinged arm 37, promptly finish combination of the present invention.
When desire folds pedal 4, as Fig. 4, Fig. 5, shown in Figure 6, pivot button body 31 is pulled out toward crank 1 outside, first pivoted pole 35 moves relative to the hinged arm 37 by nut 39 lockings with its inner stopper 353 compression springs 38, makes compressed spring 38 accumulation of energys; First pivoted pole 35 and two second pivoted poles 36 are with 31 displacements of pivot button body, and make two second pivoted poles 36 be moved to outside crank joint 12 access slots 13, remove the restriction of its butt joint handle 2 pivot connectors 21; As Fig. 7, shown in Figure 8, connecing handle 2 promptly can pivot 90 ° for axle by hinged arm 37, wait to connect handle 2 and rotate to the 3rd when connecing corresponding folding position, the second pivot hole 15, hole 24 and crank joint 12 tops, decontrol pivot button body 31, under spring 38 resilient force that are compressed accumulation of energy, first pivoted pole 35 and two second pivoted poles 36 are spurred towards crank joint 12 access slots 13 directions, to make first pivoted pole 35 and two second hinged arms 36 insert the first pivot hole 14 of crank joint 12 respectively, two second pivot holes 15 and connect first of handle 2 pivot connectors 21 and connect hole 22 and the 3rd and connect hole 24 promptly will connect handle 2 again and be equipped in folding position, rotation back.This moment, pedal 4 promptly was folded to the locus between crank 1 inboard and the bicycle support body.By the awl end 351,361 and the big end 221,231,241 of first, second and third taper hole that connects hole 22,23,24 of first pivoted pole 35, two second pivoted poles 36, with the insertion that can smooth and easyly reset; First pivoted pole, 35 length are greater than two second pivoted poles, 36 length, to make two second pivoted poles 36 be moved to crank joint 12 access slots 13 when outer, first pivoted pole 35 still is positioned at and connects handle 2 pivot connectors 21 first and connect hole 22, supporting as connecing handle 2 pivot connectors 21, and facility when resetting the 36 smooth and easy insertions of second pivoted pole connect handle 2 pivot connectors 21 the 3rd and connect hole 24.
The present invention conveniently connects the rotation of handle 2 by the drawing that articulates button 3, release and reorientates, thereby, pedal 4 can be folded to the optimum position, neither increase the bicycle lateral width, can make full use of the space between crank inboard and the bicycle support body again, thereby reach the effect in the best reduced volume of bicycle folding structure space.
Claims (18)
1, a kind of folding bicycle crank, it comprises crank and pedal; It is characterized in that being provided with between described crank and the pedal and be connected connecing handle and use and being hubbed at pivot joint button on the crank of pedal connecing handle; Crank one end is provided with the crank joint, and the crank joint is provided with access slot, runs through first and second pivot hole of crank joint and access slot; Connect pommel and be provided with pivot connector corresponding with crank joint access slot and that articulate; Pivot connector is provided with first, second and third and connects the hole; Articulating button comprises pivot button body, is mounted on first and second pivoted pole and hinged arm on the pivot button body; First pivoted pole is provided with the room that is installed with hinged arm that forms inner stopper; It is outer and connect locations that the other end of the relative pivot button of hinged arm body stretches out first pivoted pole; Be provided with the spring that is sheathed on the hinged arm between the hinged arm and first pivoted pole.
2, folding bicycle crank according to claim 1 is characterized in that the described crank other end is provided with car body member bonded assembly crank to connect the hole.
3, folding bicycle crank according to claim 1 is characterized in that the described two second pivot holes that are arranged on the crank joint are located at both sides, the first pivot hole respectively.
4, folding bicycle crank according to claim 1 is characterized in that described being arranged at connects on the handle pivot connector two second and connect the hole and be located at first respectively and connect the both sides, hole.
5, folding bicycle crank according to claim 1 is characterized in that describedly connecing on the handle pivot connector the 3rd and connecing the hole and be located at first and connect the hole and connect the vertical side of hole direction with respect to second.
6, folding bicycle crank according to claim 1 is characterized in that described pivot connector forms the arc end in order to its pivot action in access slot.
7, folding bicycle crank according to claim 1 is characterized in that described hinged arm stretches out the first pivot joint rod end and is provided with hinged arm spiral shell end; Locations is the nut of screw lock in the hinged arm spiral shell end of hinged arm.
8, folding bicycle crank according to claim 1 is characterized in that the described handle other end that connects is provided with the handle that connects pedal and connects the hole.
9, folding bicycle crank according to claim 1 is characterized in that described pivot button body lateral surface is provided with the scrobicular ring face in order to operation pivot button body.
10, folding bicycle crank according to claim 1, it is characterized in that described pivot button body be provided with the crank joint on corresponding first and second screw in first and second pivot hole; First and second pivoted pole is mounted on pivot button body end and is respectively equipped with thread end corresponding with first and second screw on the pivot button body and that be spirally connected.
11, according to claim 1 or 7 described folding bicycle cranks, it is corresponding with the first pivoted pole room diameter and cooperate the hinged arm head of the first pivoted pole inner stopper contact spring to it is characterized in that the described hinged arm other end is provided with diameter.
12, folding bicycle crank according to claim 11 is characterized in that described hinged arm head is arranged with hexagonal and pulls the hole.
13, folding bicycle crank according to claim 1 is characterized in that described first, second and third nose end that connects the hole that connects the handle pivot connector is respectively equipped with the big end of taper hole.
14, folding bicycle crank according to claim 1 is characterized in that first and second pivot hole forms the big end of taper hole in the access slot end on the described crank joint.
15, folding bicycle crank according to claim 1 is characterized in that described first and second pivoted pole other end is provided with and is convenient to be plugged in the awl end that first, second and third connects the hole.
16, folding bicycle crank according to claim 15 is characterized in that described second pivoted pole awl end is provided with the groove that utilizes the screw lock operation.
17,, it is characterized in that the handle that described pedal was provided with and connect handle connects hole bonded assembly pedal extension bar according to claim 1 or 8 described folding bicycle cranks.
18, folding bicycle crank according to claim 7 is characterized in that the screw on the described nut has reaming; The corresponding also cover of reaming is organized in first pivoted pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01124292 CN1221432C (en) | 2001-08-24 | 2001-08-24 | Folding bicycle crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01124292 CN1221432C (en) | 2001-08-24 | 2001-08-24 | Folding bicycle crank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1406809A CN1406809A (en) | 2003-04-02 |
| CN1221432C true CN1221432C (en) | 2005-10-05 |
Family
ID=4665635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01124292 Expired - Fee Related CN1221432C (en) | 2001-08-24 | 2001-08-24 | Folding bicycle crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221432C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817384B (en) * | 2010-03-05 | 2013-04-10 | 大行科技(深圳)有限公司 | Quick release pedal device without tool |
-
2001
- 2001-08-24 CN CN 01124292 patent/CN1221432C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1406809A (en) | 2003-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051005 Termination date: 20110824 |