CN2275062Y - Driving device for double person bicycle - Google Patents
Driving device for double person bicycle Download PDFInfo
- Publication number
- CN2275062Y CN2275062Y CN 96226138 CN96226138U CN2275062Y CN 2275062 Y CN2275062 Y CN 2275062Y CN 96226138 CN96226138 CN 96226138 CN 96226138 U CN96226138 U CN 96226138U CN 2275062 Y CN2275062 Y CN 2275062Y
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- sprocket
- model
- utility
- chain
- wheel
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- Expired - Fee Related
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Abstract
The utility model relates to a driving device for a double person bicycle, comprises a front shaft, a middle shaft, a back shaft, a front chain wheel, a middle chain wheel with double wheel discs and a small flywheel. A front chain is arranged between the front chain wheel and the middle chain wheel; a back chain is arranged between the middle chain wheel and the back flywheel; a ratchet mechanism is arranged on a driving chain wheel. The utility model has labour saving for riding, convenient assembly and no chain falling; because the ratchet mechanism is arranged, two persons can simultaneously pedal when riding; or one person pedals, and the other person takes a rest; the actions of the two persons can be out-of-step; the utility model can verily realize that the utility model can carry out double drive and can carry out single drive; the convenient operation can be increased.
Description
The utility model belongs to the driving device of bicycle, and it is the improvement design to existing tandem bicycle driving device.
The raising of China's living standards of the people makes the entertainment of leisure time, sports become fashion.The excellent tools of exercise health when tandem bicycle is family's holiday tour, spare time.But the driving device of old-fashioned tandem bicycle is three strand bars, and its chain comes off easily, and the effort of riding requires relatively stricter to bicycle processing and stack-mounted." three double-stranded bar drivings device of tandem bicycle " patent application that the inventor proposes, overcome above shortcoming, reach ride laborsaving, easy to assembly, not falling the requirement of chain, is that this tandem bicycle two people when two driving are synchronously necessary, and both having made wherein, a people does not exert oneself, also want synchronization action, therefore produce inconvenience.
The purpose of this utility model provides a kind of improved tandem bicycle driving device, and it can reach and make two people that ride self contained function separately, does not disturb mutually.
The utility model is achieved in that it comprises the middle sprocket of front axle, axis, rear axle and preceding sprocket wheel, tool double-wheel-disc and the small flywheel on the rear axle, preceding chain is arranged between preceding sprocket wheel and middle sprocket, between middle sprocket and the rear flywheel rear chain is arranged, it is characterized in that, on drive sprocket, be provided with ratchet device.
Ratchet device on the drive sprocket can only be located on the preceding sprocket wheel.
Ratchet device on the drive sprocket can only be located on the middle sprocket.
Ratchet device on the drive sprocket can be located on preceding sprocket wheel and the middle sprocket simultaneously.
The utility model has the advantages that: it is not only the same with three double-stranded bar drivings device, ride laborsaving, easy to assembly, do not fall chain, and owing to loaded onto ratchet device, two people that ride can scrunch simultaneously, perhaps wherein a people scrunches, and another people has a rest, and two people's action needn't be synchronous.Therefore, really realized both can twoly driving, can singly drive again, improved the comfort feature that uses.
Details of the present utility model is provided by following examples and accompanying drawing thereof:
Fig. 1 is first kind of embodiment scheme drawing of the present utility model.
Fig. 2 is second kind of embodiment scheme drawing of the present utility model.
Fig. 3 is the 3rd a system embodiment scheme drawing of the present utility model.
Fig. 4 is a ratchet device scheme drawing among Fig. 1-3.
With reference to the accompanying drawings, the utlity model has the same front axle 1 of three double-stranded bar drivings device and on preceding sprocket wheel 2, with the middle sprocket 5 on the preceding chain 3 contact axis 4, middle sprocket 5 is double-wheel-discs, and the rear flywheel 8 on the rear chain 6 contact rear axles 7 is arranged on another wheel disc.
With reference to the accompanying drawings 1 and 4, present embodiment all is provided with ratchet device A at the center of preceding sprocket wheel 2 and middle sprocket 5, and the structure of this ratchet device A is identical with bicycle freewheel of the prior art, does not just have the sprocket of outer rim.The ratchet fluted disc 9 that is it is located on the sprocket wheel, and ratchet is an internal tooth, and its ratchet mid-game 10 is fixed on the axle, and ratchet (very heavy) 11 is stuck on the ratchet.When sprocket wheel is changeed forward by the chain drive, can dally, promptly axle can not change with the pedal that is contained on the axle.Can not dally by the control of ratchet 11.Ratchet device A can make one (sprocket wheel just becomes flywheel) with sprocket wheel, also can make separately, refills on sprocket wheel.
With reference to the accompanying drawings 2 and 4, present embodiment only is provided with ratchet device A at the center of preceding sprocket wheel 2.
With reference to the accompanying drawings 3 and 4, present embodiment only is provided with ratchet device A at the center of middle sprocket 5.
Claims (4)
1, tandem bicycle driving device, it comprises the middle sprocket of front axle, axis, rear axle and preceding sprocket wheel, tool double-wheel-disc and the small flywheel on the rear axle, preceding chain is arranged between preceding sprocket wheel and middle sprocket, between middle sprocket and the rear flywheel rear chain is arranged, it is characterized in that, on drive sprocket, be provided with ratchet device.
2, device according to claim 1 is characterized in that, the ratchet device on the drive sprocket can only be located on the preceding sprocket wheel.
3, device according to claim 1 is characterized in that, the ratchet device on the drive sprocket can only be located on the middle sprocket.
4, device according to claim 1 is characterized in that, the ratchet device on the drive sprocket can be located on preceding sprocket wheel and the middle sprocket simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226138 CN2275062Y (en) | 1996-05-03 | 1996-05-03 | Driving device for double person bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226138 CN2275062Y (en) | 1996-05-03 | 1996-05-03 | Driving device for double person bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2275062Y true CN2275062Y (en) | 1998-02-25 |
Family
ID=33904614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226138 Expired - Fee Related CN2275062Y (en) | 1996-05-03 | 1996-05-03 | Driving device for double person bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2275062Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108448A (en) * | 2014-06-23 | 2014-10-22 | 蒋凤英 | Tandem bicycle |
| CN104108449A (en) * | 2014-06-23 | 2014-10-22 | 蒋凤英 | Fly wheel for tandem bicycle |
-
1996
- 1996-05-03 CN CN 96226138 patent/CN2275062Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108448A (en) * | 2014-06-23 | 2014-10-22 | 蒋凤英 | Tandem bicycle |
| CN104108449A (en) * | 2014-06-23 | 2014-10-22 | 蒋凤英 | Fly wheel for tandem bicycle |
| CN104108449B (en) * | 2014-06-23 | 2016-08-24 | 蒋凤英 | A kind of two-person ridden bicycle flywheel |
| CN104108448B (en) * | 2014-06-23 | 2016-09-28 | 蒋凤英 | A kind of two-person ridden bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |