CN2209100Y - Chain wheel assembly for speed-changing bicycle - Google Patents
Chain wheel assembly for speed-changing bicycle Download PDFInfo
- Publication number
- CN2209100Y CN2209100Y CN 94222740 CN94222740U CN2209100Y CN 2209100 Y CN2209100 Y CN 2209100Y CN 94222740 CN94222740 CN 94222740 CN 94222740 U CN94222740 U CN 94222740U CN 2209100 Y CN2209100 Y CN 2209100Y
- Authority
- CN
- China
- Prior art keywords
- bicycle
- chain wheel
- fixed
- thigh
- chain
- 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
- 210000000689 upper leg Anatomy 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract description 2
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- Transmissions By Endless Flexible Members (AREA)
- Gears, Cams (AREA)
Abstract
A chain wheel component of a variable speed bicycle belongs to the transmission parts of the bicycle and consists of a bicycle thigh and a chain wheel fixed on the side surface of the lower end of the thigh; a bottom plate is fixed on the side surface of the lower end of the bicycle thigh, and a chain wheel is fixed on the side surface of the bottom plate; an elliptical chain wheel is fixed on the other side surface of the bottom plate; under the cooperation of the chain shifting fork and the chain tensioning mechanism, the bicycle runs with high speed by using the large circular chain wheel when in light load, runs by using the elliptical chain wheel when in heavy load or uphill, has the characteristics of convenient speed change, labor saving and durability, and can be continuously used by reversely installing one side of the chain tooth.
Description
Belong to bicycle Transmission class.
Existing chain wheel assembly voluntarily is by thigh, be fixed on that the sprocket wheel of thigh lower end side forms; There is pedal axle screw the outer end of thigh, and there are central axis hole and pin hole in the lower end.This bicycle chain wheel assembly can not speed change, can not quicken when unloaded, can not low speed during heavy duty; In addition, the sprocket of sprocket wheel has only a lateral wearing, and opposite side can not used.
The purpose of this utility model is: the bicycle chain wheel assembly that a kind of variable-ratio is provided.
The technical solution of the utility model is: based on by the bicycle thigh, be fixed on the sprocket wheel of thigh lower end side; Be fixed with a base plate in bicycle thigh lower end side, sprocket wheel is fixed on the side of base plate, is fixed with an ellipse wheel in another side of base plate.
Variable speed bicycle chain wheel assembly of the present utility model:, be transformed to ellipse during heavy duty owing to be fixed with a big circular chain-wheel in the thigh lower end side; Also interchangeable direction used opposite side behind sprocket one lateral wearing of two sprocket wheels, so speed change easy to use, laborsaving durable good effect are arranged.
Fig. 1 is a structural representation of the present utility model.Fig. 2 is a lateral plan.
2 is bicycle thigh (cranks) among the figure, and there is pedal axle screw 1 outer end of thigh, and there are central axis hole 5 and pin hole 8 in the lower end, and the utility model is to be fixed with a base plate 7 in thigh 2 lower end side; Big circular chain-wheel 3 is fixed on the side of base plate 7, and the comparable existing bicycle chainwheel of this sprocket wheel is slightly bigger, uses so that quicken when underloading; Be fixed with an ellipse garden shape sprocket wheel 4 in another side of base plate 7, the long axis of this sprocket wheel and thigh 2 are at angle, purpose is in bicycle heavy duty or to become low speed when going up a slope laborsaving, adopts ellipse garden shape sprocket wheel 4 also can overcome the problem that thigh is required great effort at last lower dead point position.Two sprocket wheels 3 and 4 are fixed on base plate 7 both sides by bolt 6.This variable speed bicycle chain wheel assembly in use, needs the cooperation of corresponding chain shift fork and chain tensioning mechanism.Sprocket one lateral wearing also can oppositely continue to use by dress.
Claims (1)
1, a kind of variable speed bicycle chain wheel assembly is by the bicycle thigh, be fixed on that the sprocket wheel of thigh lower end side forms; It is characterized in that:
A, be fixed with a base plate in bicycle thigh lower end side, sprocket wheel is fixed on the side of base plate;
B, be fixed with an ellipse wheel in another side of base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222740 CN2209100Y (en) | 1994-10-09 | 1994-10-09 | Chain wheel assembly for speed-changing bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222740 CN2209100Y (en) | 1994-10-09 | 1994-10-09 | Chain wheel assembly for speed-changing bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2209100Y true CN2209100Y (en) | 1995-10-04 |
Family
ID=33836667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94222740 Expired - Fee Related CN2209100Y (en) | 1994-10-09 | 1994-10-09 | Chain wheel assembly for speed-changing bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2209100Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264782B (en) * | 2008-04-22 | 2010-06-09 | 王昆隆 | Double-flywheel acceleration bicycle |
-
1994
- 1994-10-09 CN CN 94222740 patent/CN2209100Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264782B (en) * | 2008-04-22 | 2010-06-09 | 王昆隆 | Double-flywheel acceleration 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 |