Automatic adjuster for a shoe drum brake

Details Automatic adjuster for a shoe drum brake Automatic adjuster for a shoe drum brake

1981-11-30

1984-10-16

Stoner, Jr., Bruce H.

Brakes

Wheel

Transversely movable

188196BA, F16D 5152, F16D 6538

Patent

active

044769636

ABSTRACT:
An adjuster for a shoe drum brake has a variable length strut for maintaining a predetermined maximum shoe to drum clearance. A thermally responsive body of shape memory effect material (SME material as defined in the Specification) is arranged to move the brake shoes outwardly by extending the strut to compensate for drum expansion during excessive temperature conditions. Alternative arrangements are described using a body of (SME) material to disable the adjuster during excessive temperature conditions.

REFERENCES:
patent: 2287238 (1942-06-01), Goepfrich
patent: 2570398 (1951-10-01), Smith
patent: 3983970 (1976-10-01), Courbot
patent: 4015693 (1977-04-01), Hayashida et al.
patent: 4148380 (1979-04-01), Haraikawa
patent: 4385681 (1983-05-01), Conrad et al.
patent: 4390086 (1983-06-01), Conrad

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