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Power-saving bicycles

A bicycle and chain technology, applied in the field of rickshaws, can solve the problems of pedaling and driving without effort, and achieve the effect of novel structure

Inactive Publication Date: 2004-09-22
李明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, bicycles have a history of more than 100 years. The transmission parts of traditional bicycles are all a set of models: pedals, chainrings (sprockets), chains, and flywheels. In order to save effort or increase speed, people have designed various transmission ratios. The flywheel or sprocket of the first position, these variable-speed cars have changes in speed, but pedaling and driving the car do not save effort.

Method used

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Embodiment Construction

[0009] With reference to accompanying drawing, there are two sets of chains and chainrings of the present invention, which are distributed on one side of the bicycle. The anti-reversing crankset, through the transmission of the front chain 11 and the front crankset 18, is mainly used to prevent the reverse rotation of the drive crankset 6 when the lever 14 and the crankshaft connecting rod 12 are transmitting. One end of the lever 14 is connected to the drive crankshaft 6 through the crankshaft connecting rod 12 and the crank handle, and the other end of the lever is connected to the pedal mandrel through the crankshaft. The ratio of connecting the crankshaft to the lever fulcrum axis and the distance between the crankshaft connecting rod and the lever fulcrum axis is 5:1, and the way of connecting the pedal rod to the central axis of the drive front chainring is the same as the conventional one. On the one hand, the pedaling bicycle advances like a traditional bicycle through...

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Abstract

A labour-saving bicycle has a drive unit which is composed of pedals, chain gear, chain and flywheel. It features that two sets of chain and chain gear are arranged at one side of bicycle, one of two coaxial back chain gears can drive flywheel via back chain, another back chain gear can be driven by front chain gear via front chain, and its pedal mechanism has the lever and connecting crank rod for saving labour. Its advantage is to save pedaling labour by several times.

Description

1. Technical field: [0001] The invention relates to a rickshaw, in particular to a labor-saving bicycle. 2. Background technology: [0002] As we all know, bicycles have a history of more than 100 years. The transmission parts of traditional bicycles have a set of models: pedals, chainrings (sprockets), chains, and flywheels. In order to save effort or increase the speed of the vehicle, people have designed various transmission ratios. The flywheel or sprocket wheel of the first position, these variable-speed cars all have changes in the speed of the car, but it is not labor-saving to pedal and drive the car. 3. Contents of the invention: [0003] The object of the present invention is to provide a labor-saving bicycle, which can save several times of effort before pedaling. [0004] The present invention is achieved in this way, a labor-saving bicycle, the transmission part includes pedals, chainrings, chains, and flywheels. It is characterized in that: there are two set...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/02B62M15/00
Inventor 李明
Owner 李明