Hydraulic drum brake assembly

Details Hydraulic drum brake assembly Hydraulic drum brake assembly

1991-02-19

1991-10-22

Butler, Douglas C.

Brakes

Wheel

Transversely movable

188 7956, 188196BA, 188106F, 188328, 188196F, 188 7964, 188196V, F16D 6552

Patent

active

050587137

ABSTRACT:
In a hydraulic drum brake and parking brake assembly, when a hydraulic actuator is operated to engage an opposed pair of brake shoes with a brake drum after a predetermined amount of wear had occurred on the friction pads of the brake shoes, a torsion spring adjusts a cam in the parking brake portion of the mechanism to compensate for the wear. The parking brake will thus operate properly despite the wear.

REFERENCES:
patent: 3016990 (1962-01-01), Towns
patent: 3249182 (1966-05-01), O'Reilly
patent: 3874481 (1975-04-01), Margetts
patent: 3991861 (1976-11-01), Hayashida
patent: 3998297 (1976-12-01), Aono
patent: 4015693 (1977-04-01), Hayashida et al.
patent: 4061210 (1977-12-01), Fasano
patent: 4492289 (1985-01-01), Warnock
patent: 4589527 (1986-05-01), Danne et al.
patent: 4782923 (1988-11-01), Yamazaki

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