CN1727250A - Folded crank of bicycle - Google Patents
Folded crank of bicycle Download PDFInfo
- Publication number
- CN1727250A CN1727250A CN 200410055422 CN200410055422A CN1727250A CN 1727250 A CN1727250 A CN 1727250A CN 200410055422 CN200410055422 CN 200410055422 CN 200410055422 A CN200410055422 A CN 200410055422A CN 1727250 A CN1727250 A CN 1727250A
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- CN
- China
- Prior art keywords
- crank
- attaching parts
- shaped attaching
- nut
- connecting strap
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Abstract
A foldable crank of bicycle can be connected to a pedal via U-shaped connecting part (or plate), which is linked to said foldable crank via pin. After it is folded, it can be fixed by a locating nut.
Description
Affiliated technical field
The present invention relates to the folding crank of bicycle.
Background technology
The folding crank of existing folding bicycle still is a blank, Regular Bicycle all adopts the folding mode of foldable pedal, bad, loosening, the damage easily of the intensity of this Folding pedal plate, location, folding back is unreliable, and the folding scope of bicycle is reduced as far as possible, inconvenient operation, cost height.
The objective of the invention is to make the crank of bicycle collapsible, and have simple in structure, dependable performance, intensity good, be not easy to damage, and the folding scope of bicycle is reduced as far as possible, easy to operate, cost is low.
Summary of the invention
Technical scheme of the present invention is that crank is connected with foot-operated by U-shaped attaching parts or connecting strap, be connected through the hinge between crank and U-shaped attaching parts or the connecting strap, U-shaped attaching parts or connecting strap can rotate around the center of this hinge, folding, in the crank outside screw thread is arranged, setscrew nut is installed on the crank by this screw thread, when foot-operated rotateing in place, this setscrew nut compresses the limit of U-shaped attaching parts or connecting strap, realize the location, when crank passes through the U-shaped attaching parts with foot-operated the connection, also can on the U-shaped attaching parts, connect a nut, the pedal spindle screw rod is connected with the U-shaped attaching parts by this nut, pedal spindle passes this nut and is pressed in the pit on the crank, realizes the location.
The invention has the beneficial effects as follows that to make the crank of bicycle collapsible, can also locate after folding, and multiple folding mode can be arranged, can realize zero-lash reliable location fully, have simple in structure, dependable performance, intensity good, be not easy to damage, can make the characteristics that folding scope reduces to minimum, easy to operate, cost is low of bicycle.
Description of drawings
Fig. 1 is the constructional drawing of first kind of embodiment of the present invention
Fig. 2 is the A-A view of first kind of embodiment of the present invention
Fig. 3, Fig. 4 are the views after first kind of embodiment of the present invention folds
Fig. 5 is the constructional drawing of second kind of embodiment of the present invention
Fig. 6 is the A-A view of second kind of embodiment of the present invention
Fig. 7 is the birds-eye view of Fig. 5
Fig. 8 is the view behind foot-operated rotation 90 degree of second kind of embodiment of the present invention
Fig. 9 is the constructional drawing of the third embodiment of the present invention
Figure 10 is the A-A view of the third embodiment of the present invention
Figure 11, Figure 12 are the views after the third embodiment of the present invention folds
Figure 13 is the constructional drawing of the 4th kind of embodiment of the present invention
Figure 14 is the A-A view of the 4th kind of embodiment of the present invention
Figure 15 is the birds-eye view of Figure 13
Figure 16 is the view behind foot-operated rotation 90 degree of the 4th kind of embodiment of the present invention
Figure 17 is in second kind of embodiment of the present invention, the constructional drawing that pedal spindle is direct and the U-shaped attaching parts connects
Figure 18 is the A-A view of Figure 17
Figure 19 is the birds-eye view of Figure 17
Figure 20 is the view behind foot-operated rotation 90 degree of Figure 17
Figure 21 is the front view that is pressed on the embodiment of the interior location of pit on the crank with the pedal spindle screw rod
Figure 22 is the A-A view of Figure 21
Figure 23 is the birds-eye view of Figure 21
Among the figure: 1, bicycle crank 2, setscrew nut 3, pad 4, hinge axis 5, U-shaped attaching parts (or connecting strap), 6, nut 7, pedal spindle, 8, foot-operated
The specific embodiment
Fig. 1, among Fig. 2, crank 1 is connected with foot-operated 8 by U-shaped attaching parts 5, be connected by hinge 4 between crank 1 and the U-shaped attaching parts 5, hinge rotating shaft 4 can be a rivet, pin, screw or bolt, U-shaped attaching parts 5 can rotate around the center of this hinge 4, folding, outside face at crank 1 is processed with screw thread, setscrew nut 2 is installed on the crank 1 by this screw thread, when U-shaped attaching parts 5 when hinge 4 rotate in place, rotate setscrew nut 2 by hand, the end face of setscrew nut 2 then, can pass through pad 3, compress the both sides of U-shaped attaching parts 5, make U-shaped attaching parts 5 be fixed, realize the location, if contrarotation setscrew nut 2, then can unclamp U-shaped attaching parts 5, make U-shaped attaching parts 5 freely to rotate, nut 6 is by its outside face and U-shaped attaching parts 5 weld togethers, the line of centers of nut 6 and and the center of hinge axis between depart from mutually, foot-operated 8 link together by screw thread and nut 6 with pedal shaft 7, when U-shaped attaching parts 5 when hinge axis 4 rotates, foot-operated 8 rotations thereupon, folding, Fig. 3, Fig. 4 is the two kinds of folded state diagrams of foot-operated 8 among Fig. 1, after foot-operated 8 foldings put in place, all right positioning of rotating nut 2 made foot-operated 8 to obtain the location with setscrew nut 2.Obviously, in this embodiment, can be U-shaped attaching parts 5 lengthening, make nut 6 be comprised in the U-shaped attaching parts 5 and with the two weld together, can also with two connecting panels respectively with the two sides weld together of nut 6 cylindricals, can reach the effect same equally with U-shaped attaching parts 5.
Fig. 5, among Fig. 6, crank 1 is connected with foot-operated 8 by U-shaped attaching parts 5, be connected by hinge 4 between crank 1 and the U-shaped attaching parts 5, hinge rotating shaft 4 can be a rivet, pin, screw or bolt, U-shaped attaching parts 5 can rotate around the center of this hinge 4, folding, outside face at crank 1 is processed with screw thread, setscrew nut 2 is installed on the crank 1 by this screw thread, when U-shaped attaching parts 5 when hinge 4 rotate in place, rotate setscrew nut 2 by hand, the end face of setscrew nut 2 then, can pass through pad 3, compress the both sides of U-shaped attaching parts 5, make U-shaped attaching parts 5 be fixed, realize the location, if contrarotation setscrew nut 2, then can unclamp U-shaped attaching parts 5, make U-shaped attaching parts 5 freely to rotate, nut 6 is by its end face and U-shaped attaching parts 5 weld togethers or directly that the two manufacturing is as a whole, the line of centers of nut 6 is by the center of hinge axis, foot-operated 8 link together by screw thread and nut 6 with pedal shaft 7, when U-shaped attaching parts 5 when hinge axis 4 rotates, foot-operated 8 rotate thereupon, folding, Fig. 8 is the 90 degree folded state diagrams of foot-operated 8 among Fig. 5, after foot-operated 8 foldings put in place, all right positioning of rotating nut 2 makes foot-operated 8 to obtain the location with setscrew nut 2, under this kind situation, foot-operated 8 is can be with crank 1 folding 90 degree in alignment or directly turn over turnback, and Fig. 7 is the attached view of Fig. 5.Obviously, in this embodiment, can also be in Figure 17, cancellation nut 6 directly welds or is fabricated to one to pedal spindle 7 and U-shaped attaching parts 5, to reduce the jib-length of pedal spindle.
Fig. 9, among Figure 10, crank 1 is connected with foot-operated 8 by connecting strap 5, on crank 1, have U-lag, connecting strap 5 is installed in the middle of this groove, be connected by hinge 4 between crank 1 and the connecting strap 5, hinge rotating shaft 4 can be a rivet, pin, screw or bolt, connecting strap 5 can rotate around the center of this hinge 4, folding, outside face at crank 1 is processed with screw thread, setscrew nut 2 is installed on the crank 1 by this screw thread, when connecting strap 5 when hinge 4 rotate in place, rotate setscrew nut 2 by hand, the end face of setscrew nut 2 then, can pass through pad 3, compress one side of connecting strap 5, make connecting strap 5 be fixed, realize the location, if contrarotation setscrew nut 2, then can unclamp connecting strap 5, make connecting strap 5 freely to rotate, nut 6 is by its outside face and connecting strap 5 weld togethers, the line of centers of nut 6 and and the center of hinge axis between depart from mutually, foot-operated 8 link together by screw thread and nut 6 with pedal shaft 7, when connecting strap 5 when hinge axis 4 rotates, foot-operated 8 rotations thereupon, folding, Figure 11, Figure 12 is the two kinds of folded state diagrams of foot-operated 8 among Fig. 9, after foot-operated 8 foldings put in place, all right positioning of rotating nut 2 made foot-operated 8 to obtain the location with setscrew nut 2.
Figure 13, among Figure 14, crank 1 is connected with foot-operated 8 by connecting strap 5, on crank 1, have U-lag, connecting strap 5 is installed in the middle of this groove, be connected by hinge 4 between crank 1 and the connecting strap 5, hinge rotating shaft 4 can be a rivet, pin, screw or bolt, connecting strap 5 can rotate around the center of this hinge 4, folding, outside face at crank 1 is processed with screw thread, setscrew nut 2 is installed on the crank 1 by this screw thread, when connecting strap 5 when hinge 4 rotate in place, rotate setscrew nut 2 by hand, the end face of setscrew nut 2 then, can pass through pad 3, compress the limit of connecting strap 5, make connecting strap 5 be fixed, realize the location, if contrarotation setscrew nut 2, then can unclamp connecting strap 5, make connecting strap 5 freely to rotate, nut 6 is by its end face and connecting strap 5 weld togethers or be fabricated to one, and the line of centers of nut 6 is by the center of hinge axis 4, foot-operated 8 link together by screw thread and nut 6 with pedal shaft 7, when connecting strap 5 when hinge axis 4 rotates, foot-operated 8 rotate thereupon, folding, Figure 16 is the 90 degree folded state diagrams of foot-operated 8 among Figure 13, after foot-operated 8 foldings put in place, all right positioning of rotating nut 2 makes foot-operated 8 to obtain the location with setscrew nut 2, under this kind situation, foot-operated 8 is can be with crank 1 folding 90 degree in alignment or directly turn over turnback, and Figure 15 is the attached view of Figure 13.Obviously, in this embodiment, can cancel nut 6, directly pedal spindle 7 and connecting strap 5 be welded or be fabricated to one, to reduce the jib-length of pedal spindle.
In Figure 21, crank 1 is connected with foot-operated 8 by U-shaped attaching parts 5, be connected by hinge 4 between crank 1 and the U-shaped attaching parts 5, hinge rotating shaft 4 can be a rivet, pin, screw or bolt, U-shaped attaching parts 5 can rotate around the center of this hinge 4, folding, lateral surface at crank 1 is processed with two location pits, nut 6 is by its end face and U-shaped attaching parts 5 weld togethers or directly that the two manufacturing is as a whole, the line of centers of nut 6 is by the center of hinge axis, foot-operated 8 link together by screw thread and the nut 6 that processes on the pedal shaft with pedal shaft 7, nut 6 can be passed in the end of this pedal shaft 7, when U-shaped attaching parts 5 when hinge 4 rotate in place, with spanner or other instruments rotation pedal shaft 7, the end face of pedal shaft 7 projectioies then, can compress the pit on the crank 1, make U-shaped attaching parts 5 be fixed, realize the location, if contrarotation pedal shaft 7, then can unclamp U-shaped attaching parts 5, make U-shaped attaching parts 5 freely to rotate, when U-shaped attaching parts 5 when hinge axis 4 rotates, foot-operated 8 rotate thereupon, folding, after foot-operated 8 foldings put in place, can also rotate pedal shaft 7, the end face of pedal shaft 7 projectioies then can compress the pit of opposite side on the crank 1, makes U-shaped attaching parts 5 be fixed, make foot-operated 8 to obtain the location, under this kind situation, foot-operated 8 is can be with crank 1 folding 90 degree in alignment or directly turn over turnback, and Figure 23 is the attached view of Figure 21.
When crank 1 is connected with foot-operated 8 by connecting strap 5, on crank 1, have U-lag, connecting strap 5 is installed in the middle of this groove, be connected by hinge 4 between crank 1 and the connecting strap 5, hinge rotating shaft 4 can be rivet, pin, screw or bolt, connecting strap 5 can rotate around the center of this hinge 4, folding, cylindrical machining screw at pedal spindle 7, setscrew nut is connected with pedal spindle by this screw thread, this setscrew nut can compress the limit of the U-lag on the crank 1, realize the location, also can unclamp, make that connecting strap 5 can be around hinge through, folding.Pedal spindle 7 is with connecting strap 5 weld togethers or be fabricated to one, the line of centers of pedal spindle 7 is by the center of hinge axis 4, foot-operated 8 link together with pedal shaft 7, connecting strap 5, when connecting strap 5 when hinge auxilliary 4 rotates, foot-operated 8 rotation, foldings thereupon, after foot-operated 8 foldings put in place, all right positioning of rotating nut, make foot-operated 8 to obtain the location with setscrew nut, under this kind situation, foot-operated 8 is can be with crank 1 folding 90 degree in alignment or directly turn over turnback, obviously, in this embodiment, the jib-length of pedal spindle is long.
Claims (8)
1, a kind of bicycle folding crank, it is characterized in that this crank is connected with foot-operated by U-shaped attaching parts or connecting strap, be connected through the hinge between crank and U-shaped attaching parts or the connecting strap, U-shaped attaching parts or connecting strap can rotate around the center of this hinge, folding, there is screw thread the crank outside, setscrew nut is installed on the crank by this screw thread, when foot-operated rotateing in place, this setscrew nut compresses the limit of U-shaped attaching parts or connecting strap, realize the location, when crank passes through the U-shaped attaching parts with foot-operated the connection, also can on the U-shaped attaching parts, connect a nut, pedal spindle is connected with the U-shaped attaching parts by this nut, and the end of pedal spindle projection is passed this nut and is pressed in the pit on the crank, and realization is located.
2, bicycle folding crank as claimed in claim 1, it is characterized in that to depart from mutually between the center of the line of centers of pedal spindle and hinge axis, make to ride two 90 degree folding positions are arranged, the line of centers of pedal spindle also can make foot-operated have 90 degree and two folding positions of 180 degree by the center of hinge axis.
3, bicycle folding crank as claimed in claim 1 is characterized in that described hinge rotating shaft can be rivet, pin, screw or bolt.
4, bicycle folding crank as claimed in claim 1, it is characterized in that between U-shaped attaching parts and the pedal spindle can by be threaded, the mode of flush fit, riveted joint, welding is connected or process as a whole, when when being threaded, the coupling nut can directly be fabricated to an integral body by its cylindrical or end face and U-shaped attaching parts weld together or coupling nut and U-shaped attaching parts.
5, bicycle folding crank as claimed in claim 1, it is characterized in that can be by being threaded between connecting strap and the pedal spindle, flush fit, riveted joint, the mode of welding connects or processes as a whole, when when being threaded, the coupling nut can directly be fabricated to an integral body by its cylindrical or end face and connecting strap weld together or coupling nut and connecting strap, the U-lag centre that connecting strap is inserted on the crank also can be around hinge through, this U-lag can directly process or process in addition a trough of belt U-shaped spare on crank, and with this part by the welding with crank connecting link be one.
6, bicycle folding crank as claimed in claim 1, it is characterized in that being processed with screw thread in the outside of crank, setscrew nut is by screw thread and crank connecting link, this setscrew nut compresses the limit of U-shaped attaching parts or connecting strap, reach the location, also can unclamp, make that U-shaped attaching parts or connecting strap can be around hinge through, foldings.
7, bicycle folding crank as claimed in claim 1, it is characterized in that screw thread being arranged at the cylindrical of pedal spindle, setscrew nut is connected with pedal spindle by this screw thread, this setscrew nut can compress the limit of the U-lag on the crank, realize the location, also can unclamp, make that connecting strap can be around hinge through, folding.
8, bicycle folding crank as claimed in claim 1 is characterized in that the outside face of setscrew nut can annular knurl or plastic, and it is rotated by hand easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410055422 CN1727250A (en) | 2004-07-26 | 2004-07-26 | Folded crank of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410055422 CN1727250A (en) | 2004-07-26 | 2004-07-26 | Folded crank of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1727250A true CN1727250A (en) | 2006-02-01 |
Family
ID=35926805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410055422 Pending CN1727250A (en) | 2004-07-26 | 2004-07-26 | Folded crank of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1727250A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425503C (en) * | 2006-07-03 | 2008-10-15 | 王欢 | Folding pedal mechanism of bicycle |
| CN109876511A (en) * | 2019-03-05 | 2019-06-14 | 湖南湘星环保水处理设备有限公司 | A kind of pin-connected panel sewage disposal device |
-
2004
- 2004-07-26 CN CN 200410055422 patent/CN1727250A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425503C (en) * | 2006-07-03 | 2008-10-15 | 王欢 | Folding pedal mechanism of bicycle |
| CN109876511A (en) * | 2019-03-05 | 2019-06-14 | 湖南湘星环保水处理设备有限公司 | A kind of pin-connected panel sewage disposal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |