Device for guiding sheets

US7328899B2 · kind B2 · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Peter Wulf · Ennepetal, DE
• Edgar Dorsam · Obertshausen, DE
• Frank Seidel · Schnaittenbach, DE
• Rainer Gebhardt · Landgut Burg, DE
• Udo Trillig · Offenbach, DE
• Thomas Litterst · Stuttgart, DE
• Thomas Ludwig · Weil am Rhein, DE

Key dates

• Filing date: Jun 19, 2001
• Grant date: Feb 12, 2008
• Expiry date: Apr 17, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F21/005
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus for fixing a sheet on the surface of an electrically conductive cylinder of a printing machine for processing sheets, in particular, a sheet-fed offset printing machine. The apparatus includes an electrode that extends over the width of the cylinder for creating an electric field for adhering the sheet to the surface of the cylinder and an air directing device for directing pressurized air streams against the sheet and preliminary positioning the sheet onto the cylinder prior to being acted upon by the electric field. Various alternative embodiments of the sheet fixing apparatus are disclosed.