Automatic brake adjusting mechanism

Details Automatic brake adjusting mechanism Automatic brake adjusting mechanism

1984-07-13

1986-11-18

Butler, Douglas C.

Brakes

Wheel

Transversely movable

188196BA, F16D 6556

Patent

active

046230459

ABSTRACT:
An internal shoe drum brake having a pair of hydraulically actuated brake shoes and an automatic brake adjusting mechanism. The brake adjusting mechanism includes a variable length strut disposed between the two brake shoes and actuated to increase in length by use of of a notched wheel which is rotated through engagement with a lever pivotally connected to one of the brake shoes and biased to rotate the wheel by use of a compression spring. The action of the one lever is controlled by a second lever also pivotally connected to the brake shoe and engageable by the strut and the one lever so that pivotal movement of the second lever permits a pivotal movement of the one lever of approximately three times the movement of the second lever away from the strut as great of the first lever.

REFERENCES:
patent: 4101011 (1978-07-01), Burnett
patent: 4146117 (1979-03-01), Kawaguchi et al.
patent: 4196795 (1980-04-01), Izumi
patent: 4276966 (1981-07-01), Ayers
patent: 4344512 (1982-08-01), Woo
patent: 4401195 (1983-08-01), Last

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