Sheet-conveying drum body for a printing machine

US5669305A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Harald Bayer · Rodgau, DE
• Klemens Kemmerer · Seligenstadt, DE

Key dates

• Filing date: Sep 1, 1995
• Grant date: Sep 23, 1997
• Expiry date: Sep 1, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F21/10
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A sheet-conveying drum for a printing machine with speed apart bearings, the drum including a drum body with a prismatic shape including end faces and side faces, drum journals secured to the end face for journalling the drum for rotation in the bearings, at least two gripper bridges extending between the end faces and disposed symmetrically about the periphery of the drum body, the side faces including communicating openings extending into and through the drum body for allowing the flow of air therethrough as the drum rotates.