Device for adjusting clearance between brake shoe and brake drum

Details Device for adjusting clearance between brake shoe and brake drum Device for adjusting clearance between brake shoe and brake drum

1977-08-29

1979-03-27

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

188196BA, F16D 6556

Patent

active

041461177

ABSTRACT:
In a device for adjusting the clearance between a brake shoe and a brake drum of the type having the brake shoes biased against the ends of a strut, the length of the strut being adjustable by the threaded interaction of a nut and a bolt actuated by a star wheel, the star wheel being advanced to lengthen the strut by the parking brake mechanism, a detent for restraining the reverse rotating of the star wheel. In one embodiment, a resilient arm member, fixed to a portion of the strut, acts as a detent against the teeth of the star wheel. In another embodiment, a spring, biasing the brake shoes against the ends of the strut, has a portion engaging the teeth of the star wheel.

REFERENCES:
patent: 2152041 (1939-03-01), Goepfrich
patent: 3338344 (1967-08-01), Hill
patent: 3576235 (1971-04-01), Bolenbaugh
patent: 3717227 (1973-02-01), Rath
patent: 3722635 (1973-03-01), Torii et al.

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