Drum brake

Details Drum brake Drum brake

1977-05-04

1978-07-25

Reger, Duane A.

Brakes

Position adjusters

Supports

188341, F16D 6502

Patent

active

041024427

ABSTRACT:
A drum brake for a motor vehicle includes a backing plate secured to a nonrotatable portion of the motor vehicle. The backing plate mounts a hydraulic actuator which, in turn, carries a pair of brake shoes. The backing plate includes a first portion that attaches to the nonrotatable portion of the motor vehicle and a second portion that extends radially from the first portion. The second portion includes an opening and the hydraulic actuator extends into the opening for mounting the same on the second portion. The pair of brake shoes define a space therebetween and the backing plate is radially disposed substantially within the space. A shield engages the backing plate and extends radially past the pair of brake shoes to engage the pair of brake shoes in order to guide the radial expansion of the latter during braking.

REFERENCES:
patent: 3351159 (1967-11-01), Burnett
patent: 3576237 (1971-04-01), Dubuc
patent: 4061429 (1977-12-01), Mathues

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