Actuator assembly for a drum brake having an extendible assembly

Details Actuator assembly for a drum brake having an extendible assembly Actuator assembly for a drum brake having an extendible assembly

1980-10-02

1982-10-12

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

188196BA, 192111A, F16D 6556

Patent

active

043534384

ABSTRACT:
A drum brake assembly includes a wheel cylinder (36) and extendible assembly (60) disposed between adjoining ends of a pair of brake shoes. The wheel cylinder includes a pair of pistons (40,42) which are in abutting relation with each other and with the extendible assembly to substantially define a non-braking position for the pair of brake shoes. The extendible assembly is operable to move the pair of pistons within the wheel cylinder in response to an excessive clearance between the pair of brake shoes and a rotating drum.

REFERENCES:
patent: 2084400 (1937-06-01), LaBrie
patent: 2389618 (1945-11-01), Goepfrich
patent: 3216534 (1965-11-01), Chouings et al.
patent: 3581847 (1971-06-01), Torii et al.
patent: 3709334 (1973-01-01), Kondo et al.
patent: 3712425 (1973-01-01), Torii et al.
patent: 4222467 (1980-09-01), Kluger et al.

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