| 摘要 |
PURPOSE: A bicycle for increasing the driving force is provided to increase the driving force without the excessive pressure to user legs since the radius of a pedal track in the rotation of a pedal is the same as the conventional value. CONSTITUTION: A bicycle for increasing the driving force comprises a fixed frame(20), a driving sprocket(30) and pedals. The driving sprocket is rotatably installed on the fixed frame. The pedals transfer the driving force to the driving sprocket and are installed on both sides of the fixed frame. The fixed frame comprises a shifting board(90) and a power transfer unit, wherein the pedals are rotatably installed on the front of the fixed frame and the power transfer unit is installed between the shifting board and the driving sprocket so that the power is transferred to the driving sprocket if the external force is applied to the pedals. |
