Bicycle driven by footstock lever and transmitted by rope

Abstract

A bicycle which is driven by footstock levers and transmitted by lines alternates the integral structure as well as the transmission and speed shifting mechanisms of the existing bicycle and solves the problems of large rotating friction and the dead point of exertion of the chain wheel of the existing bicycle. The bicycle is characterized in that two unilateral clutches are arranged at the two sides of a back wheel; the footstock levers, a transmission pulley and the unilateral clutches are connected by pull ropes; the back ends of a left footstock lever and a right footstock lever are symmetrically hinged at the two sides of a frame; while concentric circular rope slots with unequal radiuses are arranged on the transmission pulley to apply speed shifting transmission, thereby being capable of adopting a smaller wheel to manufacture a micro-vehicle; an offset pulley, a control pulley and an interlocking pulley are arranged on the frame as well. Folded and retracted pieces are adopted on a handgrip, the frame and the stud of a bicycle seat; the bicycle replaces the traditional bicycle with the effects of high speed and efficiency, enters marketplaces and evaluators without being folded and is folded into a package to be carried for travelling.

Description

Technical field: [0001] The overall structure of the bicycle and the transmission and speed change mechanism Background technique: [0002] The transmission friction of the traditional bicycle sprocket is large, and the upper and lower dead points make the human body prone to exertion fatigue when doing work. Chinese invention patent CN88102229.2 adopts complex speed change mechanism in solving the above-mentioned problems, and the flywheel with reversing friction is relatively large and easy to take off the chain. Solved the problems referred to above, but its " guide rail " and the internal friction of one-way clutch are difficult to reduce, and transmission rope is also easy to get off the groove, and there is no speed change transmission again. Invention content: [0003] The technical problem to be solved by the present invention is to provide a pedal-driven and rope-driven bicycle with low friction, high speed, foldable, and no force dead point. [0004] In order t...

AI Technical Summary

Problems solved by technology

Chinese invention patent CN88102229.2 adopts a complex speed change mechanism in solving the above-mentioned problems, and the reverse flywheel has relatively large friction and is easy to take off the chain. The human pedal rope drive device proposed by Chinese utility model patent CN87207883 is well implemented on bicycles However, it is difficult to reduce the internal friction of the "guide rail" and the one-way clutch, and the transmission rope is also easy to fall out of the groove, and there is no variable speed transmission.

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