| 摘要 |
A car transmission system which employs gear sets for transmission and is free from clutch mechanism. The transmission system mainly includes several driving gears which have increasing numbers of teeth and are sequentially inter-fitted on a driving shaft from inner side to outer side at intervals, and several driven gears which have decreasing numbers of teeth and are sequentially inter-fitted on a driven shaft from outer side to inner side at intervals. The driven gears are constantly engaged with the corresponding driving gears. The transmission spring members are controlled by a manually operated or automatically operated transmission controlling assembly and are respectively reciprocally independently moved between an engaging position where the power is transmitted and a disengaging position where the power is not transmitted, whereby the power of the driving shaft is sequentially transmitted to any of the driving gears. Several one-way coil spring transmission members are disposed between the adjacent driven; gears and driven shaft for sequentially transmitting the power of the respective driven gears to the driven shaft and allowing the inward driven gear to rotate at a speed not lower than that of the outward driven gear. The power of the driven shaft is transmitted to a differential housing through a torque adjusting means which delays the transmission of power and stores a greater torque.
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