Patent ID: 8123017
Filing Date: 2012-02-28
Classification: F16D,Y10T

Abstract:
1. In a centrifugal clutch for utilization with an engine of a motorcycle having a clutch basket and a plurality of clutch plates positioned within said clutch basket, the improvement comprising: a dynamic expansion ring assembly positioned substantially in a middle of said clutch basket, said dynamic expansion ring assembly comprising a first cam ring portion, a second cam ring portion and a plurality of cam members disposed between said first cam ring portion and second cam ring portion, said first cam ring portion comprising a plurality of cam-receiving portions, a plurality of external teeth and a plurality of cam faces, said second cam ring portion comprising a plurality of indented cam faces wherein each of said plurality of external teeth engage with a corresponding tooth-engaging slot of a plurality of teeth-engaging slots of said clutch basket, wherein said plurality of cam members are capable of moving inwardly and outwardly between each of said plurality of cam-receiving portions and said cam faces; and wherein said dynamic expansion ring assembly imparts substantially equal expansion forces in opposite directions away from the dynamic expansion ring assembly and against said clutch plates to urge said clutch plates into clutching engagement.