Torsional vibration damper

摘要

A torsional vibration damper is provided that is capable of increasing torsional rigidity without increasing a size of an elastic member in a radial direction. A torsional vibration damper includes a boss member and a disk plate provided coaxially with each other; an elastic member being elastically deformable in a rotation direction of the boss member; a cam member rotating integrally with the boss member; a torque transmission member transmitting rotation torque between the boss member and the disk plate; and a socket member provided between the torque transmission member and the elastic member and having a contact surface coming in contact with the torque transmission member. The torque transmission member is capable of entirely reciprocating in a radial direction of the boss member in accordance with rotation of the cam member, and elastically compresses the elastic member when it moves outward in the radial direction of the boss member.

主权项

1. A torsional vibration damper comprising:
a boss; a pair of disk plates provided coaxially with the boss; an elastic member provided between the boss and the pair of disk plates, the elastic member being elastically deformable in a rotation direction of the boss; a cam member provided coaxially with the boss, the cam member rotating integrally with the boss, the cam member having a cam surface that changes in diameter in the rotation direction; a torque transmission member contacting the cam surface and transmitting rotation torque between the boss and the pair of disk plates, the torque transmission member elastically compressing the elastic member in the rotation direction of the boss when the torque transmission member moves outwardly in a radial direction of the boss in accordance with rotation of the cam member; a fitting hole being provided in the pair of disk plates, the fitting hole guiding an entirety of the torque transmission member in the radial direction of the boss; and a socket member provided between the torque transmission member and the elastic member, the socket member having a protrusion engaging an end of the elastic member on a side of the torque transmission member, the socket member having a contact surface contacting the torque transmission member.