Quick take-up disc brake assembly

Details Quick take-up disc brake assembly Quick take-up disc brake assembly

1979-10-01

1981-12-01

Reger, Duane A.

Brakes

Wheel

Axially movable brake element or housing therefor

188196A, F16D 6574

Patent

active

043031463

ABSTRACT:
A disc brake assembly includes a caliper movable relative to a rotor for the purpose of urging a pair of friction elements into engagement with the rotor. A housing of the caliper defines a stepped bore for receiving a piston which cooperates with the housing to form a pressure chamber within the stepped bore. A plate within the pressure chamber separate the pressure chamber into a pair of cavities and a valve assembly controls communication of fluid pressure to one of the pair of cavities and to the other cavity. During initial fluid pressure build-up in the caliper, the valve assembly remains in a first position to communicate fluid pressure to one of the cavities so that the plate and piston advance to a braking position at a first rate of speed. After the initial fluid pressure build-up when the fluid pressure reaches a predetermined value, the valve assembly is movable to a second position to communicate fluid pressure to the other cavity so that the piston is advanced at a second rate of speed less than the first rate of speed.

REFERENCES:
patent: 3055456 (1962-09-01), Pfeiffer
patent: 3125187 (1964-03-01), Dotto
patent: 3353637 (1967-11-01), Chana

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