Disc brake assembly including a self-contained actuator with wea

Details Disc brake assembly including a self-contained actuator with wea Disc brake assembly including a self-contained actuator with wea

1976-04-16

1977-06-21

Blix, Trygve M.

Brakes

Wheel

Axially movable brake element or housing therefor

188 723, 188 726, 188 728, 188196A, 188196P, F16D 6574

Patent

active

040305767

ABSTRACT:
A disc brake assembly including a self-contained actuator for urging a brake shoe into frictional engagement with a friction disc; the actuator including an actuated piston movably supported within a cylinder for moving the brake shoe into engagement with the friction disc, an actuating piston movably supported within the cylinder which is separated from the actuated piston by a fluid-filled chamber which defines a fluid link therebetween and a rotatable, threaded shaft member connected to the actuating piston for transmitting rotational motion to axial motion whereby rotation movement of the shaft member causes axial movement of the actuating piston which in turn causes axial movement of the actuated piston through the fluid link. In order to compensate for separation between the actuated and actuating pistons as a result of brake wear, the cylinder includes a fluid reservoir for supplying additional fluid to the fluid-filled chamber upon separation of these two members. The assembly also includes a wear take-up and antidrag device.

REFERENCES:
patent: 1934448 (1933-11-01), Roth
patent: 2016280 (1935-10-01), Gatke
patent: 2102406 (1937-12-01), Cohen
patent: 2386477 (1945-10-01), Kraft
patent: 3500966 (1970-03-01), Birge
patent: 3643763 (1972-02-01), Hay
patent: 3659685 (1972-05-01), Stipanovic
patent: 3815716 (1974-06-01), Harrington

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