Brake actuator

Details Brake actuator Brake actuator

1985-08-26

1987-09-01

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

188 719, F16D 5508

Patent

active

046902538

ABSTRACT:
A brake lever is splined to an actuator shaft. A first face cam is splined to the actuator shaft and a second face cam is splined to a housing. Each face cam has plural opposed circumferentially spaced cam grooves. Rollers are positioned in the grooves. As the shaft is turned, rollers ride up the grooves in the opposite cams forcing the cams apart. The first cam is supported against axial movement in the housing by roller thrust bearings. The second cam slides along its splines pushing a piston against the force of a return spring to actuate the brake.

REFERENCES:
patent: 3638763 (1972-02-01), Laverdant
patent: 3805924 (1974-04-01), Gambardella
patent: 3934684 (1976-01-01), Evans
patent: 3991859 (1976-11-01), Coulter et al.
patent: 4278152 (1981-07-01), Tosi
patent: 4399894 (1983-08-01), Tribe
patent: 4454933 (1984-06-01), Hunnicutt et al.

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