Expanding wedge actuation device

Details Expanding wedge actuation device Expanding wedge actuation device

1983-04-25

1985-12-17

Reger, Duane A.

Brakes

Wheel

Transversely movable

74110, F16D 6522

Patent

active

045587680

ABSTRACT:
A wedge assembly particularly adapted for expanding brakes of motor vehicles including a housing and at least a pair of push rods movably supported in the housing and operatively connected to brake shoes of the brake, the push rods having confronting oppositely inclined faces comprising a wedge member having a pair of oppositely inclined wedge faces complementing the inclined faces of the push rods and at least a roller engaging between the inclined faces of said wedge member and push rods, and a cage for guiding said rollers slidingly movable in a longitudinal direction on said expansion wedge member, said cage having two flank portions extending parallel to the transverse direction having two free flank ends reciprocally directed in the transverse direction and provided with guide means for the rollers, each of said rollers having smooth axial end faces blending at their circumferential edge into a rolling face and said guide means being formed by two radial guide sections on each flank end of the roller cage disposed opposite each other in a longitudinal direction and firmly gripping the outer edge of the roller.

REFERENCES:
patent: 3511103 (1970-05-01), Cox

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