A speed change system applied to a bicycle uses a transmission shaft for transmission, can achieve an automatic speed change function during riding, and meanwhile solves the problems that a chain falls off during riding and friction force is large during transmission. A centrifugal force principle is utilized, a centrifugal force driving speed change combination device is arranged on a rear cone pulley speed change fluted disc, a centrifugal rotating frame is linked to drive a centrifugal hammer, rotating throwing kinetic energy is converted into linear movement, a speed change deflector rod in a transmission shaft provides thrust according to the vehicle speed, and the gears of pedal middle shaft speed change and rear wheel speed change are changed; and a rider does not need to distract to operate a manual gear shift lever any more, the gears are pushed through a deflector rod in the centrifugal machine device according to the actual speed relative to the road, and then the suitable gears can be applied to full-automatic gear shifting in the starting or climbing stage and the acceleration and high-speed stage, and the rider can easily and pleasantly face various road conditions during riding. In this way, a user can focus on road condition changes during riding, and can enjoy each riding process more safely.

    一种应用于脚踏车的变速系统,为使用传动轴传动,可实现骑行时的自动变速功能,同时免除骑行时链条掉链及传动时摩擦力大的问题;利用离心力原理,设置离心力驱动变速组合装置于后塔轮变速齿盘上,联动离心旋转架驱动离心锤,将旋转抛离动能转化为直线移动,来把传动轴中的变速拨杆依照车速给予推力,改变脚踏中轴变速及后轮变速的档位;实现骑行者不必再分心去操作手动变速杆,而是由实际相对于马路的速度,通过离心机装置中的拨杆来推动档位,如此即可以合宜的档位来应用于起步或爬坡阶段,及加速和高速阶段的档位全自动换档,让骑行时轻松愉快的面对各种路况;如此即可更加的专注于骑行时的路况变化,更安全的享受每趟骑行历程。


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    Title :

    Bicycle speed change system and assembly thereof


    Additional title:

    一种脚踏车的变速系统及其组件


    Contributors:
    ZHANG LIANKE (author) / LI MIAOZHEN (author)

    Publication date :

    2020-07-07


    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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