Patent ID: 7017488
Filing Date: 2006-03-28
Classification: B41F,B41P

Abstract:
1. An erasing and cleaning apparatus for cylindrical surfaces in a printing press, comprising: a positioning unit including side walls; a cleaning cloth transport device arranged in said positioning unit and comprising a clean cloth roll, a wash roll, and a dirty cloth roll; an intermittently operated drive comprising one of a pneumatic and hydraulic linear drive having a stroke movement and connected to said cleaning cloth transport device for advancing a cleaning cloth from said clean cloth roll, over said wash roll, and onto said dirty cloth roll; at least one of said sidewalls comprising bearing elements for said clean cloth roll, said wash roll, and said dirty cloth roll; a gearwheel connected to one of said bearing elements by one of a freewheeling and overrunning clutch for converting said stroke movement to a rotary movement; a cam control system for controlling a stroke limitation, said stroke limitation being adjustable in response to a winding radii of the cleaning cloth on said dirty cloth roll; and an integrated braking device generating a braking force for counteracting a pulling direction of said intermittently operated drive, said braking force being adjustable in response to the winding radii of the cleaning cloth on said dirty cloth roll.