Drum brake device

Details Drum brake device Drum brake device

1997-03-27

1998-10-13

Butler, Douglas C.

Brakes

Wheel

Transversely movable

188362, 188106F, 188 7951, 188216, 188196BA, 188196M, 188340, F16D 5102

Patent

active

058198873

ABSTRACT:
A drum brake device having a single brake shoe mounted to be movable on top of the back plate. One end of the brake shoe abuts against an anchor (10) and the other end interlocks with a shoe clearance adjustment device (14). A link (11) is supported so as to pivot in the central region of the brake shoe (3). One end of the link (11) is interlocked so as to be activated by a service brake actuator (12) itself activated when the service brake is applied, while the other end of the link (11) abuts against the anchor (10). When the brake drum is rotating in one direction, the other end of the brake shoe (3) is supported by the anchor (10), and when the brake drum is rotating in the reverse direction, the one end of the brake shoe (3) is supported by the shoe clearance adjustment device (14).

REFERENCES:
patent: 1781993 (1930-11-01), Wieczorak
patent: 1837573 (1931-12-01), Mox
patent: 2318880 (1943-05-01), Mueller
patent: 2701627 (1955-02-01), Murphy
patent: 2742110 (1956-04-01), Super
patent: 2868337 (1959-01-01), Holl
patent: 3388776 (1968-06-01), Burnett
patent: 3414091 (1968-12-01), Troy
patent: 3481433 (1969-12-01), Lepelletier
patent: 5246093 (1993-09-01), Wang

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