Pinch roller device

摘要

A pinch roller device for running the tape includes a rotatable hollow cylindrical elastic member; a sleeve for holding the elastic member; a bearing integrated with the sleeve; a pinch roller shaft for rotatably supporting the bearing, which has an effective bearing face for receiving a force from the pinch roller shaft; an inclination restriction member for restricting an inclination angle of the pinch roller shaft; first and second position restriction members for respectively restricting a position of the elastic member in first and second thrusting directions; and a sliding restriction member having a circular cross-section along a plane perpendicular to a rotation center line of the elastic member and disposed at a different portion from the effective bearing face. When an angle between the rotation center lines of the elastic member and the pinch roller shaft approaches a prescribed value, the sliding restriction member contacts the inclination restriction member.