The present invention relates to an auxiliary power apparatus for a bicycle comprising: a driving force storage part to store driving power generated in accordance with a rotation of a rear wheel of a bicycle; and a driving force manipulating part which converts an operating mode between a storage mode to store a driving force generated in accordance with a rotation of a rear wheel of a bicycle in the driving force storage part and an output mode to rotate a rear wheel using the driving force stored in the driving force storage part. The driving force storage part comprises: a rim internal gear which rotates together with a rotation of the rear wheel; an input gear engaged with the rim internal gear in the storage mode; a windup spring composite gear which comprises a windup spring to store the driving force generated in accordance with a rotation of the rear wheel when the input gear is engaged with the rim internal gear, and is coupled to the bicycle to be engaged with the input gear; a reverse direction free wheel gear coupled to the bicycle to be connected to the rear wheel; and an output gear to rotate the rear wheel through the reverse direction free wheel gear by rotating by the driving force stored in the windup spring in the output mode.

    본 발명은 자전거의 뒷바퀴가 회전함에 따라 발생되는 구동력을 저장하기 위한 구동력 저장부, 및 상기 뒷바퀴가 회전함에 따라 발생되는 구동력이 상기 구동력 저장부에 저장되는 저장모드 및 상기 구동력 저장부에 저장된 구동력으로 상기 뒷바퀴가 회전하는 출력모드 간에 운행모드를 전환시키기 위한 구동력 조작부를 포함하되, 상기 구동력 저장부는 상기 뒷바퀴가 회전함에 따라 함께 회전하는 림내접기어, 상기 저장모드에서 상기 림내접기어에 맞물림되는 입력기어, 상기 입력기어가 상기 림내접기어에 맞물림되면 상기 뒷바퀴가 회전함에 따라 발생되는 구동력을 저장하는 태엽을 포함하고, 상기 입력기어에 맞물림되게 상기 자전거에 결합되는 태엽복합기어, 상기 뒷바퀴에 연결되게 상기 자전거에 결합되는 역방향프리휠기어, 및 상기 출력모드에서 상기 태엽에 저장된 구동력에 의해 회전하여 상기 역방향프리휠기어를 통해 상기 뒷바퀴를 회전시키는 출력기어를 포함하는 자전거용 보조동력장치에 관한 것이다.


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    Title :

    AUXILIARY POWER APPARATUS FOR BICYCLE


    Additional title:

    자전거용 보조동력장치


    Contributors:

    Publication date :

    2016-09-21


    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 / F03G Feder-, Gewichts-, Trägheits- oder ähnliche Kraftmaschinen , SPRING, WEIGHT, INERTIA, OR LIKE MOTORS



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