Clutch with fluid actuator

Details Clutch with fluid actuator Clutch with fluid actuator

1978-02-03

1980-03-04

Wyche, Benjamin

192 clutches and power-stop control

Clutches

Operators

92165PR, F16D 2500

Patent

active

041912845

ABSTRACT:
A fluid operated actuator for activating the clutch mechanism of a clutch-operated cable drum is disclosed wherein the clutch mechanism rotates with a shaft upon which the cable drum is journalled and is operable to engage the cable drum for rotation with the shaft by axially displacing a portion of the clutch mechanism. The actuator, which is cylindrical in geometry and includes a cylindrical bore, is engaged to the end of the rotating shaft with one endwall of the actuator extending radially outward from the rotatable shaft and being adjacent to the axially displaceable portion of the clutch mechanism. A piston is slidably retained in the actuator bore and a number of circumferentially spaced apart thrust pins that are slidably retained in openings of the actuator endwall structurally link the piston with an annular plate that is positioned between the actuator endwall and the axially displaceable portion of the clutch. As fluid pressure is introduced into the cylindrical bore through a rotary fluid coupling in the opposite endwall of the actuator, the piston forces the thrust pins and annular plate against the clutch mechanism to axially displace the clutch mechanism and engage the cable drum to the rotatable shaft.

REFERENCES:
patent: 1758370 (1930-05-01), Olsen et al.
patent: 1879633 (1932-09-01), Olsen et al.
patent: 2684742 (1954-07-01), Eason
patent: 2891644 (1959-06-01), Davis
patent: 3217852 (1965-11-01), Brown et al.

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