Method of varying a drum profile of a vario drum and vario drum for implementing the method

US7320281B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Willi Becker
• Daniel Conzelmann · Dielheim, DE
• Karl-Heinz Helmstadter · Heidelberg, DE
• Thorsten Eckart · Ilvesheim, DE
• Christian Gorbing · Heidelberg, DE
• Hans-Peter Hiltwein · Kusel, DE
• Olaf Lorenz · Ludwigshafen, DE
• Stefan Mutschall · Östringen, DE
• Peter Thoma · Mannheim, DE

Key dates

• Filing date: Dec 22, 2003
• Grant date: Jan 22, 2008
• Expiry date: Jan 15, 2025

Classification

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

Abstract

A method of varying a drum profile of a vario drum for transporting printing material sheets, in which shell segments of the vario drum are pivoted inward and outward. Sheet supporting elements assigned to the shell segments are reversibly deformed by pivoting the shell segments. A vario drum suitable for implementing the method and a machine containing the vario drum for processing printing material sheets contain the shell segments and the associated sheet supporting elements.