CN2234912Y - Speed variable bicycle - Google Patents
Speed variable bicycle Download PDFInfo
- Publication number
- CN2234912Y CN2234912Y CN 95233943 CN95233943U CN2234912Y CN 2234912 Y CN2234912 Y CN 2234912Y CN 95233943 CN95233943 CN 95233943 CN 95233943 U CN95233943 U CN 95233943U CN 2234912 Y CN2234912 Y CN 2234912Y
- Authority
- CN
- China
- Prior art keywords
- steel plate
- contained
- axis
- tension wheel
- spring
- Prior art date
- 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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Abstract
The utility model relates to a speed changing bicycle which belongs to the technical field of bicycles. Essentially, the utility model is an improvement of the existing speed changing bicycle. Namely, the speed variator and the pedal levers of the existing speed changing bicycle are altered. The front steel plate and the back steel plate of a front shift fork and a back shift fork are adopted by the speed variator for fixing a front tensioner and a back tensioner. Tension springs and pressing springs are adopted by an evenly stressed structural style. So the utility model has the advantages of more convenient use, more convenient repairing and low cost. A spiral structural style changed by stacked steel plates is adopted by the pedal levers. A rider can have the feeling of labor saving because of buffer action.
Description
The utility model relates to technical field of bicycles.
Existing variable speed bicycle, its shortcoming one is the speed changer structure complexity, by dress, maintenance inconvenience, and cost is higher.The 2nd, foot-driven lever is the straight-arm type, and the rider is too painstaking to pedal.
The purpose of this utility model provides that a kind of its speed changer structure is simple, cost is low,, foot-driven lever easy to maintenance by adorning makes the rider that the variable speed bicycle of laborsaving sense be arranged.
The utility model comprises vehicle frame, be contained in the handlebar on the vehicle frame, front and back wheel, the foot-operated chain that reaches, it also comprises the change-speed box that is contained on the vehicle frame back vent, this change-speed box comprises axis, be contained in the front spring on the axis, back steel plate, be contained in preceding tension wheel and the back tension wheel that is contained on the steel plate of back on the front spring, be arranged on the preceding shift fork and the back shift fork that is arranged on steel plate end, back of front spring end, on before hanging on tension wheel shaft and the axis, on on tension spring and axis and the back tension wheel, tension spring, stage clip before being arranged between tension wheel and the front spring, back steel plate upside is arranged on stage clip on the axis and back tension wheel and the back stage clip between the steel plate, be contained on the axis before, back steel plate paw spring.Connect the helicoidal structure of foot-operated foot-driven lever for curving by two-layered steel plates.
Because change-speed box of the present utility model has adopted with steel plate and has established forward and backward wheel, adopt stage clip and extension spring that it is carried out the version of stress balance, so, use, keep in repair all more convenient, and cost is lower, and in addition, foot-driven lever adopts laminated steel plate to curve screw-shaped version, the rider pedals when foot-operated because its elasticity, buffering are used, and makes the rider that the labour-saving sensation be arranged.
Below in conjunction with accompanying drawing embodiment of the present utility model is described, wherein Fig. 1 is the utility model speed changer structure scheme drawing; Fig. 2 is not intended to for the steel plate structure of change-speed box; Fig. 3 is a foot-driven lever structural representation of the present utility model.(1) is preceding shift fork among the figure, (2) be preceding tension wheel, (3) be preceding tension wheel shaft, (4), (5) be extension spring, (6) be the back tension wheel shaft, (7) be the back shift fork, (8) be stage clip, (9) be front spring, (10) be the paw spring, (11) be the back steel plate, (12) be preceding shift fork fixed orifice, (13) be preceding tension wheel fixed orifice, (14) be the axis fixed orifice, (15) be back tension wheel fixed orifice, (16) be back shift fork fixed orifice, (17), (18) be respectively in the foot-driven lever, layer steel plate, (19) be foot-operated fixed end, (20) be the foot-operated dress hole of pressing, (21) be foot-driven lever axis fixed end, (22) press the dress hole for the foot-driven lever axis.
The utility model comes down to the improvement to existing variable speed bicycle, has promptly changed its change-speed box and foot-driven lever.Change-speed box of the present utility model is by the front spring (9) that is contained on the axis (5), back steel plate (11), be contained in the preceding tension wheel (2) on the front spring (9) and be contained in back tension wheel (23) on back steel plate (11), be arranged on the preceding shift fork and the back shift fork (7) that is arranged on steel plate (11) end, back of front spring (9) end, hang on preceding tension wheel shaft (3) and the axis (5) on, on on tension spring (4) and axis (5) and the back tension wheel shaft (6), tension spring (24), be arranged on the stage clip (3) between preceding tension wheel (2) and the front spring (9), back steel plate (11) upside is arranged on stage clip (25) on the axis (5) and back tension wheel (23) and the back stage clip (26) between the steel plate, be contained on the axis (5) before, back steel plate paw spring (10) constitutes.The utility model connects the helicoidal structure of foot-operated foot-driven lever for being curved by two-layered steel plates.
Claims (2)
1. variable speed bicycle, comprise vehicle frame, be contained in the handlebar on the vehicle frame, front and back wheel, the foot-operated chain that reaches, it is characterized in that it also comprises the change-speed box that is contained on the vehicle frame back vent, this change-speed box comprises the front spring (9) that is contained on the axis (5), back steel plate (11), be contained in the preceding tension wheel (2) on the front spring (9) and be contained in back tension wheel (23) on back steel plate (11), be arranged on the preceding shift fork (1) of front spring (9) end and be arranged on the back shift fork (7) of steel plate (11) end afterwards, hang on preceding tension wheel shaft (3) and the axis (5) on, on on tension spring (4) and axis (5) and the back tension wheel shaft (6), tension spring (24), be arranged on the stage clip (8) between preceding tension wheel (2) and the front spring (9), back steel plate (11) upside is arranged on stage clip (25) on the axis (5) and back tension wheel (23) and the back stage clip (26) between the steel plate, be contained on the axis (5) before, back steel plate paw spring (10).
2. according to the described a kind of variable speed bicycle of claim 1, it is characterized in that connecting the helicoidal structure of foot-operated foot-driven lever for curving by two-layered steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95233943 CN2234912Y (en) | 1995-06-01 | 1995-06-01 | Speed variable bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95233943 CN2234912Y (en) | 1995-06-01 | 1995-06-01 | Speed variable bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234912Y true CN2234912Y (en) | 1996-09-11 |
Family
ID=33877984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95233943 Expired - Fee Related CN2234912Y (en) | 1995-06-01 | 1995-06-01 | Speed variable bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234912Y (en) |
-
1995
- 1995-06-01 CN CN 95233943 patent/CN2234912Y/en not_active Expired - Fee Related
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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 |