Internal shoe-drum brake

Details Internal shoe-drum brake Internal shoe-drum brake

1985-07-29

1987-07-07

Kashnikow, Andres

Brakes

Wheel

Transversely movable

188342, 188106F, F16D 5148, F16D 6514

Patent

active

046780670

ABSTRACT:
An internal shoe-drum brake includes a first actuator disposed between one pair of adjacent brake shoe ends, a strut extending between the shoes adjacent the actuator, an abutment device disposed between the other pair of adjacent shoe ends, and a mechanical second actuator. Lever arms are pivotally engaged with the strut at spaced locations and are operatively associated with the second actuator. Rollers carried by the lever arms engage the brake shoes at intermediate locations lengthwise thereof so that actuating forces from the second actuator are applied to the shoes at said intermediate locations to initiate duo-servo operation of the brake.

REFERENCES:
patent: 3589476 (1971-06-01), Evans
patent: 3708044 (1973-01-01), Torri et al.
patent: 4387792 (1983-06-01), Imamura

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