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US 5,803,448 AGranted
Device for the suspended guidance of sheets or webs
AssigneeKoenig & Bauer-Albert Aktiengesellschaft
InventorsJurgen Alfred Stiel, Volkmar Rolf Schwitzky
Life of this patent
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Abstract
Sheets or a web of material are suspended and guided by a plurality of nozzles that direct air out from a closed guidance surface. The nozzles are arranged in a central stabilizing zone and two tightening zones. The air delivered in these zones is directed generally opposite to the conveying direction of the sheets or web and away from a longitudinal axis of symmetry of the closed guidance surface.
Claims6
A device for the suspended guidance of sheets or webs in a processing machine such as a rotary printing press comprising:
- a closed guidance surface facing sheets or webs being guided in a conveying direction and having a longitudinal axis of symmetry;
- a plurality of air discharge nozzles formed in said guidance surface, each of said nozzles having a nozzle blower opening with a longitudinal axis;
- and
- at least a central stabilization zone located symmetrically to said longitudinal axis of symmetry and two tightening zones adjoining said stabilization zone, said zones being defined in said closed guidance surface by said air discharge nozzles, said nozzles in said tightening zones being alternatingly positioned so that said longitudinal axis of each said nozzle blower opening and said conveying direction alternatingly enclose an angle of 100.degree. to 120.degree. and 160.degree. to 170.degree. with said nozzles being arranged so that they blow away from said longitudinal axis of symmetry.
1 more element
Dependencies are inferred from the claim text.