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Front-arranged gear speed changer of bicycle

A technology for gear transmissions and bicycles, which is applied to vehicle gearboxes, vehicle components, wheel transmissions, etc., and can solve problems such as the chain is easily detached from the chuck, the structure of the transmission is complex, and the bicycle cannot operate normally.

Inactive Publication Date: 2018-03-13
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bicycle front gear transmission, which solves the problem that the existing transmission is complex in structure, and the chain is easy to detach from the chuck during the speed change process, which leads to the problem that the bicycle cannot operate normally

Method used

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  • Front-arranged gear speed changer of bicycle

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0022] In the present invention, unless stated otherwise, the orientation words included in the term such as "first direction, second direction" only represent the orientation of the term in the normal use state, or are understood by those skilled in the art colloquial term and should not be construed as a limitation of the term. Here the first direction as figure 1 direction of arrow B, the second direction as figure 1 direction of arrow A.

[0023] Such as figure 1 Shown: the present invention provides a bicycle front gear transmission, the bicycle front gear transmission includes a housing, in which a belt shaft 1, a speed change shaft 2 and an input sha...

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Abstract

The invention discloses a front-arranged gear speed changer of a bicycle. The front-arranged gear speed changer of the bicycle comprises a shell. A belt shaft, a speed-changing shaft and an input shaft are rotatably arranged in the shell in order in the first direction and arranged parallelly; the speed-changing shaft can make reciprocating motion in the second direction; a first main gear is coaxially fixed to the belt shaft; the speed-changing shaft is provided with a second main gear, a first speed-changing gear, a second speed-changing gear and a third main gear coaxially in order in the second direction; a third speed-changing gear, a fourth speed-changing gear and a fourth main gear are fixed to the input shaft coaxially in order in the second direction; and the first main gear and the second main gear are engaged, and the third main gear and the fourth main gear are engaged. The problems that an existing speed changer is complex in structure, a chain is likely to be disengaged from a chuck in the speed-changing process, and consequently, the bicycle cannot operate normally are solved.

Description

technical field [0001] The present invention relates to bicycle accessories, in particular to a bicycle front gear transmission. Background technique [0002] Speed ​​changers are often all arranged in current bicycles, and there are many deficiencies in traditional speed changers: 1. The speed changer is directly exposed to the air, and its corrosion resistance is poor; Stopping and stepping on the pedals, during the pedaling, it is easy to use too little force to cause the speed to be unable to change, and too much force to make the chain deviate from the predetermined chuck or even the entire chain to break away from the chuck, making the bicycle unable to run normally; 3. There are many connections in the transmission structure , if a link failure will directly affect the operation of the bicycle. Contents of the invention [0003] The purpose of the present invention is to provide a bicycle front gear transmission, which solves the problem that the existing transmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M11/04
CPCB62M11/04
Inventor 陈堃程灿
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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