According to the labor-saving chain wheel driving device, a second crank is fixedly connected with a middle shaft, acting force applied to a pedal is transmitted to the other side of a bicycle frame from one side of the bicycle frame through a pedal shaft, a first crank and the middle shaft, a first fixing base and a second fixing base are additionally arranged on a chain wheel, the length of a power arm is increased, and the labor-saving purpose is achieved.
一种省力的链轮驱动装置,曲柄二与中轴的固定连接,把脚踏板上施加的作用力,从自行车车架一边,通过脚踏板轴、曲柄一、中轴,传递到自行车车架另一边,且通过在链轮上增设固定座一、固定座二,加长动力臂长度,达到省力的目的。
Labor-saving chain wheel driving device
一种省力的链轮驱动装置
2024-08-06
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |