Brake actuator with automatic adjustment

Details Brake actuator with automatic adjustment Brake actuator with automatic adjustment

1987-03-23

1987-11-10

Halvosa, George E. A.

Brakes

Position adjusters

Slack

188 719, 188 795R, 188196M, 192 4892, B60T 1302

Patent

active

047051477

ABSTRACT:
The invention concerns a brake actuator with automatic adjustment incorporating a screw and nut actuator mechanism (32, 34) whose elongation is controlled by a screw and nut device with reversible pitch (44) and a unidirectional clutch (56) sensitive to the relative movement between the fixed body (20) and a control piston (24). The brake actuator incorporates an automatic device (68) momentarily disengaging the actuator mechanism (32, 34) when the rotational torque of the nut (32) becomes too great. The brake actuator also incorporates a manual device for resetting the automatic adjustment to zero.

REFERENCES:
patent: 3068964 (1962-12-01), Williams et al.
patent: 3809189 (1974-05-01), Farr
patent: 3952845 (1976-04-01), Asquith
patent: 4064973 (1977-12-01), Deem et al.
patent: 4085830 (1978-04-01), Bottoms et al.
patent: 4256206 (1981-03-01), Maehara
patent: 4351419 (1982-09-01), Garrett et al.
patent: 4378863 (1983-04-01), Baum
patent: 4394890 (1983-07-01), Kleinhagen, Jr.
patent: 4499976 (1985-02-01), Weber

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