Device for contactless guidance of sheetlike material

US5687964A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Gunter Stephan
• Richard Mack · Kennesaw, US
• Peter Thoma · Mannheim, DE
• Joachim Herrmann · Diedorf, DE
• Gerd Raasch · Sandhausen, DE
• Michael Szeidl · Bammental, DE
• Jurgen Zeltner · Heidelberg, DE

Key dates

• Filing date: Aug 3, 1995
• Grant date: Nov 18, 1997
• Expiry date: Aug 3, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2406/1132
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Device for contactless guidance of sheetlike material being dragged along a travel path, the device having a guide surface member extending spaced from the travel path and being provided with air-blowing nozzles, includes a guide zone formed in the guide surface member wherein the air-blowing nozzles are disposed in a manner that a common flow pattern or gap flow formed during guidance of the sheetlike material is determined essentially by a first velocity component in a direction of motion of the material along the travel path and by a second and a third velocity component directed towards two side edges, respectively, of the travel path, the second velocity component being associated with one of the side edges and the third velocity component being associated with the other of the side edge.