Shoe return spring

Details Shoe return spring Shoe return spring

1987-12-15

1990-04-24

Oberleitner, Robert J.

Brakes

Position adjusters

Release mechanism

188218A, F16D 6514, F16D 6510

Patent

active

049192396

ABSTRACT:
An improved drum-type brake of the cam actuated type incorporating a formed return spring. The return spring is anchored relative to the backing plate in such a way that it cannot move circumferentially or axially but its flexing action is not interferred with. The arrangement for fixing the intermediate portion of the return spring to the backing plate also affords a means for affixing a dust shield to the backing plate. The cooperation of the return spring with the brake shoe and the mounting of brake shoes holds the brake shoes parallel to the backing plate and facilitates servicing.

REFERENCES:
patent: 1990252 (1935-02-01), Ragsdale et al.
patent: 2202841 (1946-06-01), Dick
patent: 2825429 (1958-03-01), Mikkelson
patent: 3095950 (1963-07-01), Scheel
patent: 3203512 (1965-08-01), Lepelletier
patent: 4130189 (1978-12-01), Katagiri et al
patent: 4164273 (1979-08-01), McElroy
patent: 4216850 (1980-08-01), Kizaki
patent: 4226308 (1980-10-01), Nishiyama et al.
patent: 4332311 (1982-06-01), Nomura
patent: 4762209 (1988-08-01), Copp

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