Patent ID: 7600625
Filing Date: 2009-10-13
Classification: F16D

Abstract:
1. A centrifugal clutch including a drive plate revolved together with an input member, a clutch housing revolved together with an output member and coaxially covering the drive plate, and a clutch weight that is frictionally fitted to an inside face of the clutch housing according to an action of centrifugal force caused by revolution of the input member, the clutch weight being turnably supported by the drive plate, comprising; a grooved portion of the clutch weight, at least one end of which on an inside of the clutch housing is closed, and which is formed along a turning direction of the clutch weight, is provided to a side of the clutch weight facing the drive plate; and a damping rubber supported by the drive plate with the damping rubber and being held between the drive plate and the clutch weight in a compressed state, said damping rubber being arranged in the grooved portion so that the damping rubber abuts on an inside face of the grooved portion, having a circular outside periphery, and having an axis parallel with a turning axis of the clutch weight, wherein an inside face of the grooved portion of the clutch weight includes at least: wherein when the damping rubber is disposed in the compressed state between the drive plate and the clutch plate, a diameter (d=2r) of the damping rubber is smaller than the interval (D≧2R).