| 摘要 |
PURPOSE: A bicycle with height control function is provided to enable a steady ride by adjusting the height of a lift frame with a pedal part and a saddle part which are integrally adjusted during movement and to improve visibility. CONSTITUTION: A bicycle with height control function includes a body(10) in which a front fork(11) and a rear fork(12) are formed, and a lifting frame in which a pedal(21) and a saddle part are installed. A driving sprocket(21c) is prepared on the pedal part and is rotated by the torque of a pedal. A rear wheel includes a driven sprocket(14a) connected to the driving sprocket and a chain. The rear wheel is rotated by the rotation of the pedal and is installed on the lifting frame. A hydraulic cylinder(30) is installed to contract a piston(21).
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