Drum brake and mounting means therefor

Details Drum brake and mounting means therefor Drum brake and mounting means therefor

1978-07-19

1979-12-25

Kazenske, Edward R.

Brakes

Wheel

Transversely movable

188216, 188250C, 188335, 188363, F16D 5114

Patent

active

041801490

ABSTRACT:
A drum brake is provided with a pair of brake shoes having axially inner and outer webs for supporting friction linings. A backing plate mounts the pair of brake shoes by providing radially outwardly extending lugs which are disposed between the inner and outer webs to prevent axial movement of the pair of brake shoes. Moreover, springs are disposed between respective lugs and portions extending between the webs to bias the portions into engagement with recesses on the backing plate. A double hydraulic actuator is positioned between the pair of braking shoes with one actuator cooperating with the inner webs and the other actuator cooperating with the outer webs during a braking application to urge the friction linings into engagement with a drum. The inner and outer webs also include slots substantially opposite the double hydraulic actuator for receiving plates which mount an adjustment mechanism between the pair of brake shoes.

REFERENCES:
patent: 2140741 (1938-12-01), Goepfrich
patent: 2741335 (1956-04-01), Brooks
patent: 2777542 (1957-01-01), Russell
patent: 2791296 (1957-05-01), Main
patent: 3085660 (1963-04-01), Darling
patent: 3616880 (1971-11-01), Shellhause
patent: 3666061 (1972-05-01), Nehr
patent: 3687247 (1972-08-01), Bricker et al.
patent: 3807536 (1974-04-01), Newstead et al.

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