CN2559552Y - Chain transmission mechanism for bicycle - Google Patents
Chain transmission mechanism for bicycle Download PDFInfo
- Publication number
- CN2559552Y CN2559552Y CN02254527U CN02254527U CN2559552Y CN 2559552 Y CN2559552 Y CN 2559552Y CN 02254527 U CN02254527 U CN 02254527U CN 02254527 U CN02254527 U CN 02254527U CN 2559552 Y CN2559552 Y CN 2559552Y
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- China
- Prior art keywords
- chain
- wheel
- bicycle
- utility
- model
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- Expired - Fee Related
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
A bicycle chain drive mechanism is provided, which belongs to the field of man-powered bicycles. The utility model comprises a frame, a chain wheel, a chain and a drive shaft. The drive shaft is arranged with a flywheel; the chain wheel is linked with the flywheel arranged on the drive shaft through the chain. The utility model is characterized in that: the chain is arranged with a pull support. The utility model adopts the structure model that feet operate the pull chain to change the traditional working mode that a crank drives the chain wheel to rotate to the working mode that foot pedal linear motion drives the chain wheel to rotate. Direction of the force of human on the chain wheel is identical with the direction of motion of the chain, so the working efficiency is high, the distance range between the seat and the chain wheel is expanded and the demand that the bicycle structure is designed according to different conditions are adapted. Besides, the moving range of both feet is greatly improved when drivers ride and the leg muscles are fully exercised during riding. The utility model is widely applied for various two-wheel, three-wheel and four-wheel bicycles.
Description
Technical field
The utility model belongs to the bicycle and man field, is specifically related to a kind of transmission device of bicycle and man.
Technical background
The bicycle of prior art is through a bicentenary developing history, technically has been tending towards ripe.Up to the present, the bicycle of selling on the market, its work doing driving mechanism generally adopts chain wheel driving mechanism, promptly pedals sprocket rotation by leg, and sprocket wheel drives chain, and chain drives flywheel and rotates, and flywheel drives transmission shaft and drives the rear wheel rotation afterwards then.This kind work doing driving mechanism is simple to operation, has been subjected to liking of the numerous people masses.Along with the development of bicycle consumption market, people are also more and more higher to the requirement of bicycle.And traditional bicycle can only drive, and the cyclist is sitting on the seat that is positioned at vehicle frame middle part in riding, and is upright above the waist or lean forward, and drives cyclist after the overlong time and just feels the fatigue of back waist easily, especially all the more so for the elderly.For avoiding the generation of this situation, alleviate cyclist's fatigue, the applicant has invented a kind of bicycle, the seat of this bicycle is arranged on the rear of vehicle frame, and when driving, the cyclist can partly lie on the seat, the health hypsokinesis leans against on the seat back, has so just alleviated fatigue.But because seat is far away from pedal, it is not very convenient to adopt leg to pedal the mode of sprocket rotation again.Thereby, objectively require to change the traditional approach that this pedal drives.In addition, also there is following weak point in this kind pedal force transferring structure: in the circumferential rotation process of sprocket wheel, always the rotation direction with sprocket wheel is not consistent because the cyclist is to the application of force direction of sprocket wheel, promptly at a certain particle, there is differential seat angle in the tangential direction of the rotation curve of the direction of the pedal application of force and particle.Thus, caused the loss of cyclist's human body acting, mechanical efficiency is low.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of mechanical efficiency height and drives bicycle chain strip transmission mechanism easily, its scheme that adopts is: design a kind of bicycle chain strip transmission mechanism, comprise vehicle frame, sprocket wheel, chain and transmission shaft, flywheel is set on the transmission shaft, sprocket wheel links by chain and the flywheel that is arranged on the transmission shaft, it is characterized in that being provided with on the chain pulling bearing.
The utility model axially is provided with two flywheels along transmission shaft.In the chain both sides slideway is set, pulling bearing and slideway link.
The utility model can be provided with roller in the bottom of pulling bearing, and roller and slideway link.The chain stage casing is provided with recoil spring, and chain connects the looping body by recoil spring.Fixing drag hook on the chain hypomere, fixing spring one end on the vehicle frame at chain rear portion, the spring other end links by drag-line and drag hook.
The utility model adopts the frame mode of pin operation pulling chain, the mode of work-doing that traditional crank is driven the sprocket wheel rotation changes the mode of work-doing that pedal straight line moving belt movable sprocket rotates into, because human body is consistent with the sense of motion of chain to the application of force direction of chain, thereby mechanical efficiency height, and enlarged the distance range between vehicle seat and the sprocket wheel, adapted to the needs that come bicycle is carried out structure design according to different situations; In addition, the cyclist is in the process of riding, and the motion amplitude of both feet improves greatly, in the process of riding, leg muscle is fully taken exercise, and can be widely used in various two taking turns, three-wheel, quadricycle.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is that the A of Fig. 1 is to structural representation.
The specific embodiment
As shown in the figure: two flywheels 2 are set on the transmission shaft 1, two sprocket wheels 7 are set on the vehicle frame, flywheel 2 connects with sprocket wheel 7 by chain 4.Fix a pulling bearing 6 on chain 4, the chain both sides are provided with the slideway 3 that links with support, and pulling bearing 6 is arranged on the slideway.Chain 4 connects the looping bodies by recoil spring 5, at the fixing drag hook 11 of the hypomere of ring chain, and fixing spring 9 one ends on the back end support, the spring other end links by stay cord 10 and drag hook.
With pin or pull moving pulling bearing 6, chain 4 is done straight line together forward and is moved along with the pulling bearing, and under the drive of chain, flywheel 2 clockwise rotates, and clockwise rotates thereby drive transmission shaft 1.Transmission shaft drives wheel 12,13 by driving device and rotates.Because the folk prescription of flywheel is to gyroscopic characteristics (prior art), when moving behind the pulling bearing 6, transmission shaft does not rotate.Drag hook 11 is with the reach of chain hypomere, and spring 9 tensions are extended.Like this, when the reach of pulling bearing, under the elastic force effect of spring 9, chain 4 clockwise rotates, and has accelerated the rotative speed of sprocket wheel, thereby has accelerated the rotative speed of transmission shaft 1.For avoid chain in the straight-line motion process suddenly towards phenomenon, recoil spring 5 is set at chain epimere middle part.
For reducing the pulling bearing in the straight-line motion process and the friction between the slideway, the utility model is provided with roller 8 on pulling bearing 6, and roller is arranged on the slideway.Like this, the friction of bearing in straight-line motion and between the slideway is friction of rolling.
The utility model is owing to adopted pedal or pulled the mode of motion of chain row culture reciprocating linear type, make the cyclist consistent with the sense of motion of chain to the application of force direction of chain, thereby mechanical efficiency height, therefore, effectively utilized the human body acting more, make cyclist's mechanical efficiency height, the moving velocity height of bicycle.
Claims (6)
1. a bicycle chain strip transmission mechanism comprises vehicle frame, sprocket wheel, chain and transmission shaft, and flywheel is set on the transmission shaft, and sprocket wheel links by chain and the flywheel that is arranged on the transmission shaft, it is characterized in that being provided with on the chain pulling bearing.
2. bicycle chain strip transmission mechanism according to claim 1 is characterized in that along transmission shaft two flywheels being set axially.
3. bicycle chain strip transmission mechanism according to claim 1 is characterized in that the chain both sides are provided with slideway, and pulling bearing and slideway link.
4. bicycle chain strip transmission mechanism according to claim 3 is characterized in that the bottom that spurs bearing is provided with roller, and roller and slideway link.
5. according to claim 1 or 3 described bicycle chain strip transmission mechanisms, it is characterized in that the chain stage casing is provided with recoil spring, chain connects the looping body by recoil spring.
6. according to claim 1 or 3 described bicycle chain strip transmission mechanisms, it is characterized in that on the chain hypomere fixedly drag hook, fixing spring one end on the vehicle frame at chain rear portion, the spring other end links by drag-line and drag hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02254527U CN2559552Y (en) | 2001-09-12 | 2002-09-09 | Chain transmission mechanism for bicycle |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01261676 | 2001-09-12 | ||
| CN012616761 | 2001-09-12 | ||
| CN02254527U CN2559552Y (en) | 2001-09-12 | 2002-09-09 | Chain transmission mechanism for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2559552Y true CN2559552Y (en) | 2003-07-09 |
Family
ID=34064792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02254527U Expired - Fee Related CN2559552Y (en) | 2001-09-12 | 2002-09-09 | Chain transmission mechanism for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2559552Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633389B (en) * | 2008-07-23 | 2013-01-02 | 洛克塞格尔国际公司 | Integrally cast bicycle chain transmission |
-
2002
- 2002-09-09 CN CN02254527U patent/CN2559552Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633389B (en) * | 2008-07-23 | 2013-01-02 | 洛克塞格尔国际公司 | Integrally cast bicycle chain transmission |
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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 |