F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
188/193
F16D 65/56 (2006.01) F16D 51/20 (2006.01)
Patent
CA 1144489
DRUM BRAKE ADJUSTER ABSTRACT OF THE DISCLOSURE A drum brake assembly includes a pair of brake shoes which are movable from a non-braking position to a braking position in engagement with a rotatable member. A hydraulic actuator is engageable with the pair of brake shoes to move the latter to the braking position and a strut extends between the pair of brake shoes to substantially define the non-braking position. The strut comprises a unitary sleeve with a bore for receiving projections extending from the pair of brake shoes. The bore is stepped with a threaded portion and a tapered diameter portion. The threaded portion engages one of the projections on one of the brake shoes such that rotation of the unitary sleeve by a pawl causes the unitary sleeve and other brakes shoe to move away from the one brake shoe. The unitary sleeve is radially expanded at as inter- mediate location to define a ratchet wheel in engagement with the pawl. Moreover, a parking lever is engageable with the unitary sleeve to move the pair of brake shoes to a braking position in response to movement of the parking lever.
342870
Bendix Corporation (the)
Macrae & Co.
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