F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
188/193
F16D 65/56 (2006.01)
Patent
CA 1072459
DRUM BRAKE ADJUSTER ABSTRACT OF THE DISCLOSURE A drum brake adjustment mechanism is provided to maintain a running clearance between a pair of brake shoes and a rotatable member. The adjustment mechanism includes an extendible member which is disposed between the pair of brake shoes and engageable with a pawl which is pivotally mounted on one of the brake shoes. A resilient member encircles the extendible member and engages the other brake shoe and the pawl to bias the pair of brake shoes into engagement with a hydrau- lic actuator which is operable to urge the pair of brake shoes into engagement with the rotatable member. Moreover, the resilient member cooperates with the pawl to extend the extensible member when the clearance between the pair of brake shoes and the rotatable member Is greater than the running clearance.
296790
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