Drum brake adjuster

Details Drum brake adjuster Drum brake adjuster

1977-04-28

1978-07-18

Reger, Duane A.

Brakes

Wheel

Transversely movable

188196BA, 188216, F16D 6556

Patent

active

041010116

ABSTRACT:
A drum brake adjustment mechanism is provided to maintain a running clearance between a pair of brake shoes and a rotatable member. The adjustment mechanism includes an extendible member which is disposed between the pair of brake shoes and engageable with a pawl which is pivotally mounted on one of the brake shoes. A resilient member encircles the extendible member and engages the other brake shoe and the pawl to bias the pair of brake shoes into engagement with a hydraulic actuator which is operable to urge the pair of brake shoes into engagement with the rotatable member. Moreover, the resilient member cooperates with the pawl to extend the extensible member when the clearance between the pair of brake shoes and the rotatable member is greater than the running clearance.

REFERENCES:
patent: 2570398 (1951-10-01), Smith
patent: 4015693 (1977-04-01), Hayashida et al.

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