Abstract: A two-way clutch comprises an inner race element provided with one of a cam surface and a cylindrical surface, an outer race element provided with the other of the cam surface and the cylindrical surface, torque transmission members interposed between the cam surface and the cylindrical surface for performing torque transmission therebetween, springs for biasing the torque transmission members in a direction substantially along the cam surfaces, and a cage for retaining the torque transmission members and the biasing means, the cage being supported to be rotatable relative with the cam surfaces. The cage is elastically retained by elastic retaining means at a position where the torque transmission members are in the respective neutral conditions with respect to the cam surface. The springs are provided only on one side of the torque transmission members.

Abstract: In a ratchet one-way clutch including an inner race, an outer race provided coaxially with the inner race, a pawl member for transmitting torque between the inner race and the outer race, and a damper mechanism for absorbing shock at the time of engagement of the pawl member, a sliding plate is interposed between two members which constitute the damper mechanism and are rotatable relative to each other.

Abstract: A two-way clutch comprises an inner race element provided with one of a cam surface and a cylindrical surface, an outer race element provided with the other of the cam surface and the cylindrical surface, torque transmission members interposed between the cam surface and the cylindrical surface for performing torque transmission therebetween, springs for biasing the torque transmission members in a direction substantially along the cam surfaces, and a cage for retaining the torque transmission members and the biasing means, the cage being supported to be rotatable relative with the cam surfaces. The cage is elastically retained by elastic retaining means at a position where the torque transmission members are in the respective neutral conditions with respect to the cam surface. The springs are provided only on one side of the torque transmission members.

Abstract: In a ratchet one-way clutch including an inner race, an outer race provided coaxially with the inner race, a pawl member for transmitting torque between the inner race and the outer race, and a damper mechanism for absorbing shock at the time of engagement of the pawl member, a sliding plate is interposed between two members which constitute the damper mechanism and are rotatable relative to each other.