Mechanically actuated brake with automatic adjustment

Details Mechanically actuated brake with automatic adjustment Mechanically actuated brake with automatic adjustment

1988-05-12

1989-07-04

Reger, Duane A.

Brakes

Wheel

Transversely movable

188331, F16D 6556

Patent

active

048442127

ABSTRACT:
The mechanically actuated brake (10) with automatic adjustment comprises an integral support plate (20) having first (22) and second (24) axially extending support bars which position associated pairs of brake shoe ends (13, 15, 17, 19). The brake shoe ends (13, 15, 17, 19) are biased together by respective spring mechanisms (16, 18), and the shoes (12, 14) are captured between the support bars (22, 24) and shoe web rests (21). A pawl (60) is attached to one (12) of the brake shoes (12, 14) and is biased by a resilient member (70). The pawl (60) includes a protrusion (66) which slidably engages an axially extending angled ramp surface (25) of the second support bar (24). An end (64) of the pawl (60) engages an adjuster mechanism (50) located between the second pair (17, 19) of brake shoe ends (13, 15, 17, 19). The first pair (13, 15) of brake shoe ends has a mechanical actuator slide (30) disposed therebetween, the mechanical actuator slide (30) providing pivotable support for an actuator lever (40) which engages one (12) of the brake shoes (12, 14).

REFERENCES:
patent: 3103992 (1963-09-01), Dombeck
patent: 3294202 (1966-12-01), Helvern
patent: 3352383 (1967-11-01), Thompson
patent: 3360084 (1967-12-01), Ayers
patent: 3589476 (1971-06-01), Evans
patent: 3874481 (1975-04-01), Margetts
patent: 3905456 (1975-09-01), Torii et al.
patent: 4018312 (1977-04-01), Muramoto et al.
patent: 4139083 (1979-02-01), Hoshino et al.
patent: 4502574 (1985-03-01), Spaargaren
patent: 4558766 (1985-12-01), Palmer et al.
patent: 4588052 (1986-05-01), Courbot

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