A disclosed electric gear transmission for a bicycle allows gear transmission to be implemented by operating sprocket transmissions respectively provided on a driving side sprocket and a back wheel side sprocket in a multi-layered structure by latches respectively provided on two transmission pulleys while the two transmission pulleys are rotated in a forward or reverse direction by one electric motor, thereby being simplified so that gear transmission control is implemented with one button attached to a handle to increase convenience of a driver.

    개시되는 자전거의 전동 기어변속기는, 하나의 전동모터에 의해 2개의 변속 풀리가 각각 정 방향 또는 역 방향으로 회전하면서, 2개의 변속 풀리 각각에 구비된 래칫에 의해 다단 구조의 구동측 스프로켓과 후륜측 스프로켓에 각각 구비된 스프로켓 변속기를 작동시켜 기어 변속이 이루어지도록 함으로써, 핸들에 부착된 버튼 하나로 기어 변속 조작이 이루어지도록 단순화시켜 운전자의 편의성을 증대시킨 자전거의 전동 기어변속기에 관한 것이다.


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    Title :

    Electric Gear Transmission Apparatus of Bicycle


    Additional title:

    자전거의 전동 기어변속기


    Contributors:

    Publication date :

    2020-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16H Getriebe , GEARING



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