Disk brake with automatic adjustment

Details Disk brake with automatic adjustment Disk brake with automatic adjustment

1985-08-08

1987-01-13

Reger, Duane A.

Brakes

Wheel

Axially movable brake element or housing therefor

188196D, F16D 6556

Patent

active

046357602

ABSTRACT:
The subject of the invention is a disk brake with automatic adjustment of the type incorporating a sliding calliper (10), a brake actuator (12) acting directly upon a first friction component (14) and, by reaction through the calliper (10), upon a second friction component (16), the brake actuator (12) incorporating a mechanical control (32) acting upon a hydraulic control piston (20) through an automatic adjustment device. The automatic adjustment device consists of a screw and nut system (46-60) of reversible pitch which is capable of being actuated by the hydraulic piston (20) beyond a predetermined travel of the latter, the adjustment device incorporating an annular component (76), firmly fixed in rotation to the nut and co-operating with a control piston (64), immobilizing the annular component (76) in rotation when the hydraulic pressure acting upon the hydraulic control piston (20) reaches a predetermined value. According to the invention, the hydraulic piston (20) and the control piston (64) are coaxially mounted one inside the other, and co-operate in sealed reversible sliding thus allowing the hydraulic piston (20) to be dismantled as a unit from the control piston (64), from the annular component (76) and from the nut (60).

REFERENCES:
patent: 3991859 (1976-11-01), Coulter et al.
patent: 4246985 (1981-01-01), Shimizu et al.
patent: 4399894 (1983-08-01), Tribe

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