| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric motor mounting part for a bicycle, attachable to a bicycle in current use without disassembling it, safe because the motor suddenly stops by slipping due to a rotational start transmitting board, and capable of assisting pedaling by rotation of the motor. SOLUTION: In order to mount an electric motor to a bicycle in current use without disassembling it, rotational start transmitting boards are made by providing cut openings to insert shafts on several mounting plates and superimposing the cut openings one by one while shifting them each other, hanging them on spokes and fixing them by screws. A rotary switch using centrifugal force is attached to it to obtain this motor mounting part for bicycle simply operated at hand and designed in consideration of safety-first. |
