Disc brake and improved adjuster therefor

Details Disc brake and improved adjuster therefor Disc brake and improved adjuster therefor

1980-08-22

1982-08-17

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

188 7347, 188196BA, 192 7025, 192111A, F16D 6556

Patent

active

043445101

ABSTRACT:
A disc brake assembly includes a frame (28) which is movably disposed relative to a rotor (18) and a central opening (29) on the frame carries a pair of friction elements (30, 33) facing opposite sides of the rotor. An adjuster assembly (43) is disposed within the central opening to control the position of the pair of friction elements relative to the rotor. The adjuster assembly includes a lever (44) pivotally engaging the frame and an extendible assembly (48) cooperating with the lever and frame to control the pivotal position of the lever relative to the frame. An actuator (36) extends into the central opening and is engageable with one of the friction elements and the lever. Upon operation of the actuator, the one friction element separates from the lever to engage the rotor and the frame moves to engage the other friction element with the rotor. A pawl (50) is responsive to movement of the one friction element relative to the lever to control extension of the extendible assembly. The extendible assembly is carried on the lever at an end remote from the pivotal engagement with the frame. The lever carries a roller (40) which is engageable with the actuator and a U-shaped section of the lever forms a pocket to receive the roller.

REFERENCES:
patent: 3490562 (1970-01-01), Press
patent: 3708041 (1973-01-01), Hahn
patent: 3908802 (1975-09-01), Shimodaira et al.
patent: 4117910 (1978-10-01), Johannesen
patent: 4142611 (1979-03-01), Johannesen
patent: 4146117 (1979-03-01), Kawaguchi et al.
patent: 4253550 (1981-03-01), Kasselmann et al.

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