Self-adjusting vehicle wheel drum brake with multiple pawl step

Details Self-adjusting vehicle wheel drum brake with multiple pawl step Self-adjusting vehicle wheel drum brake with multiple pawl step

1989-08-24

1991-03-19

Reger, Duane A.

Brakes

Wheel

Transversely movable

188196BA, 74577M, F16D 6556

Patent

active

050002961

ABSTRACT:
In a preferred embodiment a self-adjusting vehicle wheel drum brake is provided having an adjuster strut with a threadably extending star wheel and an adjuster pawl mechanism having a dual step tip. The dual step tip allows the adjuster mechanism to move the adjuster pawl in small incremental steps, thereby lowering in half or in close approximate thereto, the amount of wear required upon a pair of brake shoes before the adjuster pawl will effectuate outward movement of the brake shoes.

REFERENCES:
patent: 3358794 (1967-12-01), Ayers, Jr.
patent: 3941215 (1976-03-01), Schoch
patent: 4502574 (1985-03-01), Spaargaren

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