CN2307728Y - Labour-saving apparatus for bicycle - Google Patents
Labour-saving apparatus for bicycle Download PDFInfo
- Publication number
- CN2307728Y CN2307728Y CN97238820U CN97238820U CN2307728Y CN 2307728 Y CN2307728 Y CN 2307728Y CN 97238820 U CN97238820 U CN 97238820U CN 97238820 U CN97238820 U CN 97238820U CN 2307728 Y CN2307728 Y CN 2307728Y
- Authority
- CN
- China
- Prior art keywords
- chain wheel
- utility
- model
- bicycle
- axis direction
- 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
Links
- 201000011180 Dental Pulp Calcification Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Motorcycle And Bicycle Frame (AREA)
Abstract
The utility model relates to a labor-saving apparatus for a bicycle. A chain wheel of the utility model is made into a curve type chain wheel, wherein, the shaft diameter of which is not equidistant; the axial direction of a turning foot which is fixed with the chain wheel is the same as the minor axis direction of the chain wheel or forms a deflection definite angle. The utility model has the advantages of reasonable design, simple structure, labor saving, easy use, economy and practicality.
Description
The utility model relates to the bicycle driving device in the traffic and transport field.
Existing bicycle driving device, carry out work by a just round chain wheel by the chain drive rear flywheel, can not adapt to the variation that the people exerts oneself when both feet are in parallel or upper-lower position, render a service low, upward slope or the loading difficulty of travelling, let alone laborsaving, light.
Technical solution of the present utility model is: it is non-equidistant shaped form chain wheel that the chain wheel of bicycle is made the diameter of axle, with it Gu Ding turning axially with the identical or deflection certain angle of short-axis direction of chain wheel.
When cyclist's both feet were in parallel position, the long axis direction of chain wheel was stressed, at this moment was equivalent to large toothed disk work, and the rider adopts energetically to pedal; When cyclist's both feet were in upper-lower position, the short-axis direction of chain wheel was stressed, at this moment was equivalent to the work of denticle dish, and the rider adopts little power to pedal.Like this, this device has alleviated poor benefit that the rider is in upper-lower position at the both feet problem of exerting oneself, the fatigue that also just alleviated whole whole process.Facts have proved that this device is exerted oneself small one and large one when operation, more meet body mechanics's characteristics, and is sensuously lighter, comfortable.
Fig. 1 is a structural representation of the present utility model.
Referring to Fig. 1, the utility model includes chain wheel 1, turning 2, and chain wheel 1 is made the diameter of axle 3 and is non-equidistant shaped form chain wheel, and fixing with it turning 2 its identical or deflection certain angles of short-axis direction axial and chain wheel 1 are not more than 30 ° as angle of inclination.
Claims (1)
1, a kind of bicycle power-saving device, include chain wheel (1), turning (2), it is characterized in that it is non-equidistant shaped form chain wheel that chain wheel (1) is made the diameter of axle (3), with it its identical or deflection certain angle of short-axis direction axial and chain wheel (1) of Gu Ding turning (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97238820U CN2307728Y (en) | 1997-09-02 | 1997-09-02 | Labour-saving apparatus for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97238820U CN2307728Y (en) | 1997-09-02 | 1997-09-02 | Labour-saving apparatus for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2307728Y true CN2307728Y (en) | 1999-02-17 |
Family
ID=33949024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97238820U Expired - Fee Related CN2307728Y (en) | 1997-09-02 | 1997-09-02 | Labour-saving apparatus for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2307728Y (en) |
-
1997
- 1997-09-02 CN CN97238820U patent/CN2307728Y/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 |