Chainless bicycle with backward central axis

A bicycle and rear wheel technology, applied to bicycles, motor vehicles, vehicle parts, etc., can solve the problems of low work efficiency, high manufacturing cost, and low transmission efficiency

Inactive Publication Date: 2008-07-23
邓小荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing bicycles with chains have very complex structures, high manufacturing costs, and low transmission efficiency; there are also many chainless bicycles on the market now, but these existing chainless bicycles all retain the center shaft drive, and the double The feet must do circular motion, and the work efficiency is very low. Due to the existence of the central axis, the structure of the bicycle is complicated, the volume and weight are large, and it is not conducive to folding. Compared with the traditional chain drive bicycle, the advantage is not significant, so the chainless bicycle Has not become the mainstream of the market

Method used

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  • Chainless bicycle with backward central axis
  • Chainless bicycle with backward central axis
  • Chainless bicycle with backward central axis

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specific Embodiment approach 1

[0005] Specific implementation mode one: as figure 1 As shown, this specific embodiment is made up of bicycle handle 1, front wheel 2, rear wheel 3, beam 4, pedal 5, pedal reset device 6, pedal reset device support 7, speed change gear group 8, and front wheel 2 is fixed on the bicycle Below the handle 1, the front wheel 2 and the rear wheel 3 are connected by the crossbeam 4, the pedal reset device support 7 is fixed on the rear end of the crossbeam 4 and the front of the rear wheel 3, the middle part of the pedal reset device 6 is connected with the pedal reset device support The upper part of 7 is movable hinged, the middle part of two pedals 5 is movable hinged with the two ends of pedal reset device 6, the rear end of pedal 5 is connected with speed change gear group 8, and speed change gear group 8 is fixed on the axle 3-1 of rear wheel 3 superior.

[0006] like figure 2 As shown, the transmission gear set 8 is composed of a driving gear 8-1, an accelerating pinion 8-...

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Abstract

The invention relates to a bicycle without chain, whose middle axle is arranged back, wherein the base (7) of pedal return device is fixed at the back end of beam (4) and the front of back wheel (3); the middle of pedal return device (6) is movably hinged to the upper part of base (7); the middle of two pedals (5) is movably hinged to two ends of pedal return device (6); the back end of pedal (5) is connected to the speed-variable gear group (8); the speed-variable gear group (8) is fixed at the wheel axle (3-1) of back wheel (3). The invention has compact structure and the application of foldable carrying.

Description

Technical field: [0001] The invention relates to an improvement of a bicycle. Background technique: [0002] Existing bicycles with chains have very complex structures, high manufacturing costs, and low transmission efficiency; there are also many chainless bicycles on the market now, but these existing chainless bicycles all retain the center shaft drive, and the double The feet must do circular motion, and the work efficiency is very low. Due to the existence of the central axis, the structure of the bicycle is complicated, the volume and weight are large, and it is not conducive to folding. Compared with the traditional chain drive bicycle, the advantage is not significant, so the chainless bicycle Has not become the mainstream of the market. Invention content: [0003] The present invention develops a chainless bicycle with a central shaft moving backwards. The present invention adopts gear transmission, has a compact structure, saves riding effort, is convenient and ...

Claims

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Application Information

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IPC IPC(8): B62K17/00B62M1/04B62M11/02B62M1/24
Inventor 邓小荣
Owner 邓小荣
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