Patent ID: 6101943
Filing Date: 2000-08-15
Classification: B41F,B41P

Abstract:
A device for cleaning an impression cylinder of a sheet-fed printing press with a cleaning fabric, the impression cylinder having gripper means to catch a sheet printed or to be printed and including a portion adjacent the gripper means, the impression cylinder rotating in a direction, the device comprising:a pad having a length to extend parallel to the cylinder and including a surface to receive the cleaning fabric, the pad comprising first and second members extending longitudinally thereof and juxtaposed with each other in the rotating direction of the cylinder, the first member being different in hardness from the second member and positioned downstream of the second member in the rotating direction of the cylinder; andmeans for moving the surface of the pad to first press the fabric against the gripper means and the portion of the cylinder adjacent the gripper means and then against another portion of the cylinder, the first member being relatively soft for providing a buffer action to absorb shock between the cleaning fabric and the gripper means, the second member being relatively hard for strongly pressing the fabric against the gripper means and the portion of the cylinder adjacent the gripper means to clean at least a part of the gripper means and the portion of the cylinder adjacent the gripper means.