CN2820696Y - Synergic wheel disc for bicycle - Google Patents
Synergic wheel disc for bicycle Download PDFInfo
- Publication number
- CN2820696Y CN2820696Y CN 200520092814 CN200520092814U CN2820696Y CN 2820696 Y CN2820696 Y CN 2820696Y CN 200520092814 CN200520092814 CN 200520092814 CN 200520092814 U CN200520092814 U CN 200520092814U CN 2820696 Y CN2820696 Y CN 2820696Y
- Authority
- CN
- China
- Prior art keywords
- wheel disc
- bicycle
- major axis
- synergy
- utility
- 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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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model relates to a synergic wheel disc for a bicycle, which has a wheel disc. The utility model is characterized in that the wheel disc approximates an elliptical shape, and an included angle of pedal arms and a long shaft of the wheel disc is 80 to 100 DEG. The utility model has the advantages that because the wheel disc approximates the elliptical shape and the included angle of the pedal arms and the long shaft of the wheel disc is 80 to 100 DEG, the pedal time in an ineffective stage is reduced, the effective apply work time is added, therefore the whole pedal efficiency is enhanced.
Description
Technical field
The utility model is particularly related to a kind of bicycle synergy wheel disc.
Background technology
Existing bicycle wheel disc is circular, when the bicycle pedal arm is pedaled near level attitude, the cyclist applies scrunches the moment maximum, application of force institute work maximum, it is fastest that pin moves downward, thereby relative time is the shortest, and when other positions, cyclist's the application of force can not all effectively be utilized.When riding, have only less a part of power to be used effectively like this.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists, and a kind of human engineering that meets is provided, and reduces the invalid stage to scrunch the time, improves the bicycle synergy wheel disc that scrunches efficient.
The utility model is achieved in that it has a wheel disc, and its special character is: said wheel disc is an approximate ellipsoidal, and the angle of pedal arm and wheel disc major axis is 80～100 degree.
Above-mentioned bicycle synergy wheel disc, the edge at corresponding major axis place is isometrical circular arc on the wheel disc, and the central angle of isometrical circular arc is 45～60 degree, to bring into play the maximum efficient that scrunches.
Above-mentioned bicycle synergy wheel disc, the major axis of said approximate ellipsoidal wheel disc and minor axis length difference are 6～25 millimeters.
Above-mentioned bicycle synergy wheel disc, angle the best of said pedal arm and wheel disc major axis are 85 degree, scrunch efficient to improve to greatest extent.
The utility model has the advantages that: because wheel disc is the angle of approximate ellipsoidal and pedal arm and wheel disc major axis is 80～100 degree, so has reduced the invalid stage and scrunch the time, has increased the time of effective acting, thereby has improved the whole efficient that scrunches.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a scheme of installation of the present utility model.
Among the figure: 1-wheel disc, 2-pedal arm, 3-chain, 4-teeth.
The specific embodiment
As shown in the figure, the utility model has the wheel disc 1 of an approximate ellipsoidal, and the edge at corresponding major axis place is isometrical circular arc on the wheel disc 1, and the central angle of isometrical circular arc is 45～60 degree, to bring into play the maximum efficient that scrunches.The major axis of said approximate ellipsoidal wheel disc and minor axis length difference are 6～25 millimeters.On wheel disc 1 excircle, be provided with teeth 4, be used to hang chain 3.Pedal arm 2 is 80～100 degree with the angle of wheel disc 1 major axis, and above-mentioned angle the best is 85 degree, scrunches efficient to improve to greatest extent.
When riding, when pedal arm 2 was pedaled level attitude, wheel disc 1 major axis had so just increased the time that effective stage scrunches near the upright position; When pedal arm 2 was pedaled the upright position, wheel disc 1 major axis had so just reduced the time that the invalid stage scrunches near level attitude, thereby had improved the whole efficient that scrunches.
Claims (4)
1, a kind of bicycle synergy wheel disc comprises wheel disc (1), it is characterized in that: said wheel disc (1) is an approximate ellipsoidal, and pedal arm (2) is 80～100 degree with the angle of wheel disc (1) major axis.
2, bicycle synergy wheel disc according to claim 1 is characterized in that: the edge that wheel disc (1) is gone up corresponding major axis place is isometrical circular arc, and the central angle of isometrical circular arc is 45～60 degree.
3, bicycle synergy wheel disc according to claim 1, it is characterized in that: the major axis of said approximate ellipsoidal wheel disc (1) and minor axis length difference are 6～25 millimeters.
4, bicycle synergy wheel disc according to claim 1 is characterized in that: said pedal arm (2) is 85 degree with angle the best of wheel disc (1) major axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092814 CN2820696Y (en) | 2005-09-30 | 2005-09-30 | Synergic wheel disc for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092814 CN2820696Y (en) | 2005-09-30 | 2005-09-30 | Synergic wheel disc for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2820696Y true CN2820696Y (en) | 2006-09-27 |
Family
ID=37017245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520092814 Expired - Fee Related CN2820696Y (en) | 2005-09-30 | 2005-09-30 | Synergic wheel disc for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2820696Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867670A (en) * | 2012-12-18 | 2014-06-18 | 杨泰和 | Noncircular Synchronous Transmission Pulley Set Having Periodically Varying Speed Ratio and Circumference Compensating Function |
-
2005
- 2005-09-30 CN CN 200520092814 patent/CN2820696Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867670A (en) * | 2012-12-18 | 2014-06-18 | 杨泰和 | Noncircular Synchronous Transmission Pulley Set Having Periodically Varying Speed Ratio and Circumference Compensating Function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20060927 Termination date: 20091030 |