Patent ID: 8025139

Claim:
A clutch comprising a base plate assembly in which a plurality of clutch weights is mounted, the clutch weights being each provided with a return element for performing opening/closing operation of the clutch weights when the clutch weights are subject to displacement caused by centrifugal force, wherein the base plate assembly comprises at least one main driving plate and an associated corotating plate, the main driving plate is formed with a constraint section corresponding to each clutch weight; the main driving plate being in driving coupling with an associated driven plate in an offsetting-allowed manner, the clutch weights being installed on the associated corotating plate, each clutch weight is formed with an engaging slot corresponding to the constraint section for engaging with the constraint section, the constraint section receiving a torque from an engine and in response thereto applying a pressing force to the engaging slot of the respective clutch weight whereby by means of the pressing force, induced by the displacement of the constraint section, proceeds thrusting against an abutting face of the engaging slot of the clutch weight, thereby an engaging force of the clutch weight is enhanced and stability of power transmission is improved due to the anti-reversal function ensured by the engaging force.