Single revolution clutch

Details Single revolution clutch Single revolution clutch

1984-12-28

1986-05-27

Pate, III, William F.

192 clutches and power-stop control

Latch operated

Transversely moving transmission member

192 33R, 192 45, 192 93R, F16D 1500, F16D 4102

Patent

active

045910367

ABSTRACT:
A clutch includes an inner clutch member of a cylindrical shape fixedly mounted on a shaft for rotation therewith, a bushing mounted on the inner clutch member, and an outer clutch member mounted on the bushing and driven for rotation at a predetermined speed, coupling elements carried by the bushing for coupling the inner and outer clutch members together, a first cam fixedly mounted on the shaft for rotation therewith, and a second cam pivotally mounted on the first cam and coupled to the bushing. An actuator initiates a revolution of the first cam, and it engages an acceleration section of a cam surface of the first cam at an initial portion of the revolution of the first cam to rotate it at a speed generally corresponding to a speed of rotation of the outer clutch member. The actuator engages a deceleration section of the cam surface at a final portion of the revolution to decelerate the speed of rotation of the first cam. The second cam is angularly moved in one direction immediately after the initial portion of the revolution of the first cam to bring the coupling elements into locking engagement with the inner and outer clutch members to engage the clutch. The second cam is also angularly moved in the other direction immediately before the final portion of the revolution of the first cam to bring the coupling elements out of locking engagement with the inner and outer clutch members. At the final portion of the revolution of the first cam, the actuator is automatically set in its operative position for driving the first cam.

REFERENCES:
patent: 2716476 (1955-08-01), Hunter
patent: 2990043 (1961-06-01), Fink
patent: 3291269 (1966-12-01), Merta
patent: 3487900 (1970-01-01), Dahl
"Sr Clutch" (author unknown), 1974, pp. 3-9.

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