| 摘要 |
PURPOSE: A stationary bike with rocking structure of saddle is provided to make abdominal muscle and muscle of the waist eliminated, to display remarkable effect in the relieve constipation, and to ensure stable operability and improved assembly. CONSTITUTION: A stationary bike with rocking structure of saddle comprises: a frame(10); a pedal part(20) installed on both ends of a crank shaft installed in the frame; a saddle(30) forming boarding space; a fixed bracket installed in the lower part of a saddle; and a gear installed between arc gears of the saddle. The saddle switches right and left switching power supplied from the gear. The torque of the pedal part is transformed through a connection rod into the round trip switching power.
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