The labor-saving crank structure of the bicycle comprises a crank mechanism, a transmission mechanism and a rotary arm assembly, and the crank mechanism comprises a crank, a shaft end gear arranged on the crank and a pedal end gear; the transmission mechanism is arranged in the crank and comprises a rotating shaft, a first gear and a second gear, the first gear and the second gear are connected to the rotating shaft, the first gear is in meshing transmission with the shaft end gear, and the second gear is in meshing transmission with the pedal end gear; the rotating arm assembly comprises a first rotating arm and a second rotating arm, and the two ends of the second rotating arm are connected with the first rotating arm and the pedal end gear respectively. Therefore, the structure is simple, and stable transmission can be carried out in a circular motion mode.

    本发明公开了一种自行车的省力型曲柄结构,包括曲柄机构、传动机构及旋臂组件,曲柄机构包括曲柄、设置在曲柄的轴端齿轮及踏板端齿轮;传动机构设置在曲柄的内部,且其包括转轴及连接在转轴的第一齿轮和第二齿轮,第一齿轮与轴端齿轮啮合传动,第二齿轮与踏板端齿轮啮合传动;旋臂组件包括第一旋臂及第二旋臂,第二旋臂的二端分别连接第一旋臂和踏板端齿轮。借此,不仅结构简单且能够以圆周运动方式进行稳定传动。


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    Title :

    Labor-saving crank structure and assembly of bicycle


    Additional title:

    自行车的省力型曲柄结构及总成


    Contributors:
    LIN XUANZHI (author) / LI JUNCHENG (author)

    Publication date :

    2022-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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