To provide a power-assisted bicycle characterized in that when a mode is implemented in which the bicycle is pushed along with a user's walk or allowed to autonomously travel by outputting an auxiliary driving power exerted by a motor to a wheel, a rotating pedal is prevented from hitting a user's leg.SOLUTION: A power-assisted bicycle 1 can implement a mode in which the bicycle is pushed along with a user's walk or allowed to autonomously travel by transmitting a torque of a crankshaft, which rotates with a human driving force due to an effort exerted on a pedal, to a wheel via a one-way clutch, and outputting an auxiliary driving power exerted by a motor to the wheel. The power-assisted bicycle includes: an arm rotation restriction member capable of moving to a position where the member can be opposed to the flank of a crank arm 6 to which the pedal is coupled; and a moving unit 70 that moves the arm rotation restriction member. When the arm rotation restriction member is moved by the moving unit to the position where the member can be opposed to the flank of the crank arm, the rotation of the crank arm is restricted.SELECTED DRAWING: Figure 4A

    【課題】電動アシスト自転車において、モータによる補助動力を車輪側に出力して押し歩く、または自走させるモードを実行する際に、ユーザの足に、回転したペダルが当たることを防止することである。【解決手段】電動アシスト自転車1は、ペダルの踏力による人力駆動力により回転するクランク軸の回転力がワンウェイクラッチを介して車輪側に伝達され、モータによる補助動力を車輪側に出力して押し歩く、または自走させるモードを実行可能な電動アシスト自転車であって、ペダルが連結されたクランクアーム6の側面に対向可能な位置に移動可能なアーム回転制限部材と、アーム回転制限部材を移動させる移動装置70とを含む。移動装置によってアーム回転制限部材がクランクアームの側面に対向可能な位置に移動することにより、クランクアームの回転が制限される。【選択図】図4A


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    Title :

    POWER-ASSISTED BICYCLE


    Additional title:

    電動アシスト自転車


    Contributors:

    Publication date :

    2021-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS




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