Patent ID: 6119822
Filing Date: 2000-09-19
Classification: F16D

Abstract:
A drum brake assembly comprising:a rotating drum having an inner peripheral surface;a pair of brake shoes selectively engageable with said inner peripheral surface of said drum;an actuation mechanism for moving said brake shoes selectively into engagement with said inner peripheral surface of said brake drum, said actuation mechanism including an input shaft driving a pinion gear, and a pair of rack members driven by said pinion gear, said rack members each associated with one of said brake shoes such that upon rotation of said pinion gear said rack members move said brake shoes into engagement with said drum in a peripheral surface; andan input shaft for said brake assembly slideably receiving a slip clutch member, said slip clutch member transmitting rotation from said input shaft to said pinion gear when said input shaft is rotated in a first direction but said slip clutch allowing said pinion gear and said shaft to rotate relative to each other if said pinion gear is rotated in a direction opposed to said first direction.