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Double-cone-wheel transmission for bicycle

A double tower wheel and transmission technology, which is applied in the direction of vehicle gearboxes, vehicle components, chain/belt transmissions, etc., can solve the problem of not being able to meet the requirements of riding speed and riding movement, lack of comfort and sportiness, and riding Limited speed and other issues, to achieve a large gear ratio, easy maintenance, and reduce tooth side wear

Inactive Publication Date: 2016-08-24
李凌军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is difficult to provide a large gear ratio, the riding speed is limited, and there is no comfort and sportiness
There are products using gear technology, but the number of shifting stages is small and the ratio is small, which still cannot meet the requirements of riding speed and riding movement

Method used

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  • Double-cone-wheel transmission for bicycle
  • Double-cone-wheel transmission for bicycle
  • Double-cone-wheel transmission for bicycle

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Experimental program
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Embodiment Construction

[0018] The present invention refers to the standard chain number 082C of the national standard of the People's Republic of China (ISO9633:2001, ITD) about the speed-changing bicycle chain. The pitch is 12.7mm, and the chain width is 7.4-8.2mm.

[0019] attached figure 1 , attached figure 2 They are the top view and the front view of the double tower transmission structure respectively. These include: 1 pedal lever, 2 external chain, 3 driving sprocket, 4 driving sprocket, 5 passive sprocket, 6 internal chain, 7 sliding coupling, 8 passive sprocket dial, 9 chain upper fork, 10 Chain lower shift fork, 11 tensioning wheel, 12 curved guide rail, 15 transverse paddle, 16 transverse shift fork, 22 fixed end of curved guide rail on the left side of the housing, 23 fixed end of curved guide rail on the right side of the housing. Pedal rod (1) drives driving sprocket (4), and the external large sprocket (3) on the driven wheel shaft (7) drives rear wheel to rotate through external ...

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Abstract

The invention discloses a double-cone-wheel transmission based on a bicycle chain rotating mechanical device. The double-cone-wheel transmission mainly comprises an active chain wheel driven by foot rest levers, a passive chain wheel, a sliding chain axle, a driving chain wheel, an internal chain, a speed-changing chain jumping mechanism and the like. According to the double-cone-wheel transmission, the number of chain discs of the active chain wheel is one larger than that of chain discs of the passive chain wheel, the passive chain wheel can transversely move back and forth on the passive axle by a chain disc interval under the action of a passive wheel transverse shifting fork, each passive chain wheel tooth disc is only meshed with two corresponding active chain wheel tooth discs, the internal chain can be connected with one of any two active chain wheel tooth discs on a rotating plane of a tooth disc of the passive chain wheel under the action of chain jumping mechanism, and therefore the number of steps of speeds can be twice that of the number of the passive chain wheel discs. According to the double-cone-wheel transmission, the thickness of the bicycle transmission and the diameters of the chain wheels are effectively decreased, and multi-step uniform speed changing can be achieved within a small space and under the action of a small number of parts.

Description

technical field [0001] The invention belongs to the technical field of speed change of civil bicycles, and is aimed at speed change, foldable and mountain sports bicycles. Background technique [0002] At present, the development of bicycles roughly forms different branches such as sports shifting and foldable portable storage. [0003] At present, the variable speed bicycle technology is mostly the speed change mechanism in which the tower wheel is installed on the rear wheel of the bicycle, which has a simple structure and is easy to manufacture. But the size is large, the failure rate is high, and the driving wheel and the driven wheel are not completely on the same plane of motion, resulting in additional frictional resistance and wear, which makes it impossible to reduce the two wheelbases, so that the variable speed bicycle is still bulky after being folded. Larger, it is difficult to meet the requirements of portability and storage. [0004] Most of the folding bicy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/04
Inventor 李凌军
Owner 李凌军
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