Gripper for sheet printing machine - has congruent guide tracks on side wall surfaces of gripper finger in region of screw, each track having roller body locating in gripper retainer

摘要

In the area of the screw (8) on the surfaces of the side walls of the gripper finger (2) adjacent to the gripper retainer (3) congruent guide tracks (7) are arranged. On each guide track a rotatably located roller body (13) locates on the gripper retainer in the area of the screw (8). The guide tracks are curved-arc or circular arc-shaped and two roller bodies (13) per guide track (7) are provided. ADVANTAGE - Functions in a play and thrust-free manner and has less friction torque.