Actuating mechanism for a disc brake

Details Actuating mechanism for a disc brake Actuating mechanism for a disc brake

1985-02-15

1986-11-11

Reger, Duane A.

Brakes

Wheel

Axially movable brake element or housing therefor

188343, F16D 6532

Patent

active

046217134

ABSTRACT:
The invention concerns a mechanism for actuating a disc brake, incorporating a piston (5) coupled to a brake pad (1), a wedge (12) which is moveable longitudinally, under the action of a control rod (10), between surfaces (5a, 17a) forming part of the piston (5) and of a reaction component (17), respectively, and a pair of rollers (13) situated on each side of the wedge (12) and able to roll between the surfaces (12a, 12b) of the latter and the surfaces of the piston (5) and of the reaction component (17). The space in which the wedge (12) and the rollers (13) move is confined in a closed hydraulic chamber (17). The control rod (10) actuating the wedge forms a penetrating piston which determines variations of volume in this chamber (7) producing a hydraulic thrust upon the piston (5). The corresponding displacement of the latter is slightly greater than that which the wedge (12) would communicate to it mechanically through the intermediary of the roller (13), for the same displacement of the control rod (10).

REFERENCES:
patent: 3752266 (1973-08-01), Chouings
patent: 4267903 (1981-05-01), Kita et al.
patent: 4369863 (1983-01-01), Farr et al.

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