Centirfugal clutch
OwnerChin Hua Sheninventor
Life of this patent
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Abstract
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.
Claims4
A centrifugal clutch comprising:
- a driving wheel including an engaging portion on a side thereof, the engaging portion including a friction portion;
- an operative disc connected to the driving wheel to move therewith, the operative disc including plural pivotal blocks on an outer periphery thereof, each said pivotal block including an end that is pivoted to the operative disc and that has a friction plate on an outer side thereof;
- a transmission disc mounted to the outer periphery of the operative disc, the transmission disc including an engaging portion for frictional engagement with the pivotal blocks to move therewith, the transmission disc including a central portion;
- a follower shaft extending through the driving wheel, the operative disc, and the transmission disc, the follower shaft being securely engaged with the central portion of the transmission disc to turn therewith, the operative disc being turned together with the driving wheel, each said pivotal block being moved to a position for frictional engagement with the transmission disc when the operative disc turns at a high speed, thereby driving the transmission disc and the follower shaft to turn;
- a friction mechanism fixed to the transmission disc and in frictional engagement with the friction portion of the driving wheel;
- and
- a coupling device for releasable coupling with a gear train of a gearbox;
- wherein 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.
Dependencies are inferred from the claim text.