POWER TRANSMISSION DEVICE

摘要

An object of the present invention is to provide a power transmitting apparatus which may surely prevent the instantaneous reciprocation of the pressure member when the back-torque limiting cam is operated and thus improve the operability of the clutch operation. According to the present invention, there is provided a power transmitting apparatus comprising a clutch housing; a plurality of driving and driven clutch plates; a clutch member; a pressure member; an intermediate member; a plurality of urging devices; and a back-torque limiting cam characterized in that the power transmitting apparatus further comprises an urging force cut-off device for cutting-off the urging force applied to the pressure member from particular urging devices of the plurality of urging devices by separating the inner ends of the particular urging devices from the pressure member when the intermediate member is moved toward the pressure member by the action of the back-torque limiting cam.