| 摘要 |
A centrifugal clutch comprises a driving wheel, an operative disc connected to the driving wheel to move therewith, a transmission disc mounted to an outer periphery of the operative disc, a follower shaft, a friction mechanism, and a coupling device for releasable coupling with a gear train of a gearbox. The follower shaft extends through the driving wheel, the operative disc, and the transmission disc. The friction mechanism is fixed to the transmission disc and in frictional engagement with a friction portion of the driving wheel. When the driving wheel turns at an idling speed, the friction portion drives the friction mechanism, the transmission disc, and the follower shaft to turn slowly with a constant torque, thereby allowing easy gear shifting through the coupling device.
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