Guiding and carrying elements with throttled blowing air

US6659446B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Uwe Fischer · Berlin, DE
• Eckart Frankenberger · Darmstadt, DE
• Michael Gieser · Oftersheim, DE
• Christian Gorbing · Heidelberg, DE
• Peter Hachmann · Dossenheim, DE
• Karl-Heinz Helmstadter · Heidelberg, DE
• Christian Hieb · Schifferstadt, DE
• Ruben Schmitt · Bühl, DE
• Gunter Stephan

Key dates

• Filing date: Aug 31, 2001
• Grant date: Dec 9, 2003
• Expiry date: Sep 23, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2406/422
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

In a device for reducing the frictional force between a guiding or carrying element for sheets in a sheet-processing machine, in particular rotary printing machines, guiding and carrying elements acted upon by throttled blowing air include a sheet surface, orifices fluidically connected to a hollow interior, and a throttle disposed in the hollow interior. The elements are to be connected to an air source for blowing air out through the orifices and for generating an air cushion between a sheet and the sheet surface. Each of the orifices is preceded by the throttle with respect to a direction of air from the air source.