Abstract: A clutch having high engaging force and featuring of smooth operation, wherein clutch weights that are biased by return elements are subject to thrusting force caused by constraint sections of a main driving plate that receive and convert torque from an engine into the pressing action against engaging slots defined in the clutch weights so as to gain enhanced engaging force even when the minor difference or error existing on the response time of the clutch weight or the strength of the return elements and also provides anti-reversal function to reduced the oscillation and let the power output more smooth and more stable. Accordingly, slippage of clutch and wear of the clutch wear pad are both reduced and temperature rise of the wear pad is also reduced.

Abstract: A clutch having high engaging force and featuring of smooth operation, wherein clutch weights that are biased by return elements are subject to thrusting force caused by constraint sections of a main driving plate that receive and convert torque from an engine into the pressing action against engaging slots defined in the clutch weights so as to gain enhanced engaging force even when the minor difference or error existing on the response time of the clutch weight or the strength of the return elements and also provides anti-reversal function to reduced the oscillation and let the power output more smooth and more stable. Accordingly, slippage of clutch and wear of the clutch wear pad are both reduced and temperature rise of the wear pad is also reduced.