Device for fixing a cover on a cylinder of a printing unit

In a printing-unit cylinder of a printing machine, a device for fixing a covering to the printing-unit cylinder, the covering having a leading angled-over leg and a trailing angled-over leg, said device comprising:

• a leading channel edge of a tensioning channel defined in the printing-unit cylinder along an axial direction of the printing-unit cylinder for hooking the leading angled-over leg of the covering;
• and
• a spindle arranged in the printing-unit cylinder and running along the axial direction of the printing-unit cylinder, said spindle being pivotable about a pivoting axis to a tensioning position for tensioning the trailing angled-over leg of the covering, said spindle accommodating a trailing channel edge of the tensioning channel, wherein said spindle is pivotable away from the tensioning position for moving the trailing channel edge away from the leading channel edge, and wherein said spindle is mounted outside the area of Schmitz rings such that said spindle is radially removable from the printing-unit cylinder,
• the printing-unit cylinder defining a circumferential area on an outer circumferential surface of the printing-unit cylinder, said pivoting axis of said spindle being arranged such that said trailing channel edge remains radially within a circumference defined by the outer circumferential surface during pivoting of said spindle toward and away from said tensioning position, said spindle further defining a face adjoining the trailing channel edge, said face forming a part of the circumferential area when said spindle is in said tensioning position.