CYLINDER OF A PRINTING UNIT WITH A RUBBER LAYER FOR USE IN OFFSET, INTAGLIO, FLEXOGRAPHIC OR LETTERPRESS PRINTING

摘要

To avoid slot impact or interference in cylinders of printing mechanisms, the upper layer of the rubber covering is removed at its ends so that the angle between the upper and lower layers is less than or equal to 90 DEG . The remaining ends of the covering are inserted into a tube capable of rotation and of being locked into position, which serves as a tensioning element incorporated into the body of the cylinder, and which possesses a slot of equal size to that of the round recess in the body of the cylinder and a reduced wall thickness over 90 DEG of its circumference. …By rotating the tube, the rubber covering is tensioned, the tensioning element locked into position and the cylinder roller completely covered by the rubber covering. ……