Patent ID: 7226377
Filing Date: 2007-06-05
Classification: F16H

Abstract:
1. A tensioner for a traction member, comprising: a base connected to a tensioner arm, said tensioner arm having a free end for connection of a rotatable tension roller which bears against a traction member; a ring flange secured to a pin of the base; a spring member urging the tensioner arm to seek a forced engagement of the tension roller upon the traction member; a sliding disk disposed between the ring flange and an end surface of the tensioner arm to define a damping element for damping an adjusting movement of the tensioner arm; a pivot bearing swingably supporting the base on a machine part for rotation about the rotation axis; an actuator supporting the base on the machine part and acting on the base for rotation about the rotation axis; and a control unit for controlling an effective length of the actuator to thereby adjust a biasing force of the traction member.