Power transmitting apparatus

摘要

An object of the present invention is to provide a power transmitting apparatus which can prevent the disengagement of the pressure member from the clutch member during an axial movement of the pressure member for cutting-off the power transmission of the apparatus. According to the present invention, there is provided a power transmitting apparatus comprising a clutch housing rotatable together with an input member and supporting a plurality of driving clutch plates; a clutch member supporting a plurality of driven clutch plates alternately arranged between the driving clutch plates via spline fitting and connected to an output member ; a pressure member mounted on the clutch member axially movably therealong for carrying out the pressure-contact or release between the driving clutch plates and the driven clutch plates; and back-torque limiting cams for releasing the connection between the driving clutch plates and the driven clutch plates when the rotation speed of the output member has exceeded that of the input member; in which a rotational force inputted to the input member can be transmitted to the output member by carrying out the pressure-contact or release between the driving clutch plates and the driven clutch plates characterized in that the power transmitting apparatus further comprises a limiting means for limiting a movement of the pressure member toward a direction away from the clutch member.