Disk brake apparatus for motor vehicle

Details Disk brake apparatus for motor vehicle Disk brake apparatus for motor vehicle

1979-01-03

1981-05-19

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

60589, 188 718, 188 727, 188196A, 188351, 188370, 192 7025, 192111A, 403 35, 403 37, F16D 5526

Patent

active

042679036

ABSTRACT:
A hydraulically operated disk brake apparatus for a motor vehicle comprises a brake disk, a caliper-like brake housing disposed to straddle over the brake disk and having a pair of arms, and a pair of brake pad assemblies disposed in the brake housing in opposition to each other with the brake disk being interposed therebetween. The brake pad assemblies are movable toward and from the brake disk. A cylinder chamber is formed in one of the caliper arms and accommodates therein a first piston for pressing the adjacent brake pad assembly to the brake disk and a second piston positioned with a distance from the first piston. The second piston is operated by an externally provided actuator member to produce a hydraulic pressure in the cylinder chamber for moving the first piston and the associated brake pad assembly toward the brake disk. A reservoir for hydraulic fluid is formed in the brake housing to supply supplementary fluid into the cylinder chamber.

REFERENCES:
patent: 3103990 (1963-09-01), Wilkinson
patent: 3243016 (1966-03-01), Swift
patent: 3262273 (1966-07-01), Harvey
patent: 3517784 (1970-06-01), Clemmons
patent: 3643763 (1972-02-01), Hay
patent: 3878921 (1975-04-01), Kibler et al.
patent: 3974897 (1976-08-01), Pringle

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