The present invention relates to a power transfer device for an electric bike. The power transfer device for an electric bike comprises: a first driven gear which receives power from the rotary shaft of a drive motor; a first drive gear which is engaged with the first driven gear to receive power; a second driven gear which is installed in a first gear shaft (131) where the first drive gear is installed; a second drive gear which is engaged with the second driven gear to receive power; a third driven gear which is installed in a second gear shaft where a second wheel gear is installed; a third drive gear which is engaged with the third driven gear to receive power and is installed in a pedal shaft; and a ratchet guide and an additional bearing which minimize a torsional load applied to a ratchet formed between the third drive gear and the pedal shaft.

    본 발명은 전기 자전거의 동력전달장치에 관한 것으로서, 구동모터의 회전축으로 부터 동력을 전달받는 제1 종동 기어와, 상기 제1 종동 기어와 맞물려 동력을 전달받는 제1 구동 기어와, 상기 제1 구동 기어가 장착된 제1 기어축(131)에 장착되는 제2 종동 기어와, 상기 제2 종동 기어와 맞물려 동력을 전달받는 제2 구동 기어와, 상기 제2 휠기어가 장착된 제2 기어축에 장착되는 제3 종동 기어와, 상기 제3 종동 기어와 맞물려 동력을 전달받고, 페달축에 장착되는 제3 구동 기어를 포함하고, 상기 제3 구동 기어와 상기 페달축의 사이에 구비되는 래쳇에 가해지는 비틀림 하중을 최소화하는 래쳇 가이드와 추가 베어링을 구비할 수 있다.


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    Title :

    DRIVING UNIT OF ELETRICITY BIKE


    Additional title:

    전기 자전거의 동력전달장치


    Contributors:
    OH MYUNG GEUN (author) / KIM SE JOO (author) / YUN TAE HO (author)

    Publication date :

    2016-02-17


    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



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