Automatic slack adjuster

Details Automatic slack adjuster Automatic slack adjuster

1983-02-28

1984-11-20

Reger, Duane A.

Brakes

Position adjusters

Slack

188 795K, F16D 6556

Patent

active

044834241

ABSTRACT:
An automatic slack adjuster for vehicle brakes includes an annular housing, a splined bushing within the housing, and unidirectional clutch between housing and bushing, the bushing having an annular surface frictionally engaged by the surface of a ring having limited rotation. Brake pressure is applied to a rotatable brake actuating mechanism on the forward (i.e., power application) stroke by an amount equal to brake-application and slack. On the return (i.e., non-powered) stroke, slack adjustment is provided by limited rotation of the ring, while the housing continues freely to automatically reset the device to its null position.

REFERENCES:
patent: 1525568 (1925-02-01), Chapin
patent: 3374867 (1968-03-01), Pirard
patent: 3669221 (1972-06-01), Hase
patent: 3871495 (1975-03-01), Devitt

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