Multiple-disc friction clutch

Abstract

A multiple-disc friction clutch has a clutch center including a first and second clutch centers. The first clutch center is axially supported by a main shaft in a relatively non-rotatable manner. The second clutch center is supported by the first clutch center in a relatively rotatable manner and holds a clutching part between a pressure plate and the second clutch center. The first and second clutch centers have a torque limiter mechanism and a torque limiter-disabling mechanism therebetween. The torque limiter mechanism transmits power between the first and second clutch centers and reduces clutch torque by acting on the pressure plate due to relative rotation between the first and second clutch centers. The torque limiter-disabling mechanism inhibits operation of a torque limiter of the torque limiter mechanism by preventing the relative rotation when power is transmitted from the first clutch center to the second clutch center in an acceleration direction.