| 摘要 |
Original system of bicycle motion transmission consisting of the axis of pedals (1) , the ball bearings (2,3) ,the gear (4), the sprocket wheel (6) ,with the one-way mechanism (5) ,the ring (7) ,the axis (8) ,the gears (12,11) and the control (17),which properly combined may set in motion a bicycle either the pedals rotate forwards or backwards . The same result may be achieved and with a second component combination which consists of the axis of pedals (1) ,the ball bearing (2) , the one-way mechanisms (3,4) ,having the sprocket wheel (9) , the axis (10) , the ring (11) and the sprocket wheel (13) .
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