Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1996-03-14
1997-03-25
Butler, Douglas C.
Brakes
Wheel
Axially movable brake element or housing therefor
188 718, 188234, 188250G, 188370, 188 7332, F16D 6904
Patent
active
056135777
ABSTRACT:
An automotive disc brake (10) with an improved caliper assembly (14) to prevent drag of the inner brake pad (78) on the inner braking surface (40) of the rotor (16) in a hydraulically actuated automotive disc brake assembly. The automotive disc brake assembly (10) comprising a housing (46), a rotor (16) having an annular portion (26) carried within the housing (46), a shoe assembly (72) mounted within the housing (46) having a frictional lining member (78) carried adjacent the rotor annular portion (26) and a plate member (80) fixedly secured thereto, a cylinder (60) defining an axis generally perpendicular to the rotor annular portion (26) mounted in the housing (46), a piston (48) slidably received in the cylinder (60) along the axis, an elongated operating rod (82) operatively connected between the piston (48) and the plate (80), and a pair of annular grooves (102 and 104) bridged by a snap ring (100) for preventing substantial axial movement between the rod (82) and both the plate (80) and the piston (48) whereby the piston (48) is movable in a direction along the axis to frictionally engage the lining member (78) against the rotor annular portion (26) and in an opposite direction to disengage the lining member (78) from the rotor annular portion (26).
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Brown Gregory P.
Butler Douglas C.
Ford Motor Company
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