Gripper finger for a sheet gripper system

US4970955A · kind A · utility

Assignees

• MAN Roland Druckmaschinen AG · DE
• Multi-Arc Inc. · DE

Inventors

• Werner Sondergeld · Offenbach, DE
• Nikolaus Matentzoglu · Lohmar, DE
• Nikola Pupic · Heusenstamm, DE
• Manfred Ruger · Heusenstamm, DE

Key dates

• Filing date: Nov 18, 1988
• Grant date: Nov 20, 1990
• Expiry date: Nov 18, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F21/104
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A gripper finger for a sheet gripper system for a printing press, to which gripper unwanted paper dust, dirt, debris, or the like cannot stick, the profiled retaining surface of the finger has in its front part a single bead-like protuberance which contacts the sheet, has a bead radius (R) of from 0.4 to 1.0 mm, extends parallel to the front edge of the sheet and is coated with a hard substance.