Expanding shoe drum brake

Details Expanding shoe drum brake Expanding shoe drum brake

1983-12-14

1984-10-16

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

188340, 188341, 192 75, F16D 5122

Patent

active

044769687

ABSTRACT:
An improved expanding shoe drum brake (10) is provided. The brake includes a pair of brake shoes (20) pivotably retained on an anchor structure (18). The shoes include brake tables (22) and webs (26), the webs are resiliently urged by a spring (132) into constant sliding engagement with three guide surfaces (78, 88 and 114) to locate the webs on a plane (P) relative to the spider and to retain a substantially parallel relationship between the shoe friction material (24) and the brake drum (12) thereby minimizing the required running clearance (44) or slack of the brake.

REFERENCES:
patent: 2060877 (1936-11-01), LaBrie
patent: 2451325 (1948-10-01), Eksergian et al.
patent: 3081844 (1963-03-01), Mathews et al.
patent: 3186519 (1965-06-01), Johannesen
patent: 3497037 (1970-02-01), Deibel
patent: 3795292 (1974-03-01), Keller, Jr.
patent: 3941218 (1976-03-01), Torii
patent: 4209084 (1980-06-01), Peck

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