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AssigneeMAN Roland Druckmaschinen AG
InventorsAndreas Bohme, Peter Mayer, Valentin Gensheimer, Hanns-Otto Haas, Hans Schwerdter, Bert Cappel
Estimating the term…
A conveying cable for conveying sheets includes a suction chamber with a supporting surface defining a shallow groove having a plurality of suction openings therein over which a perforated suction belt moves. A plurality of vent openings separately communicating with atmosphere are disposed adjacent the belt edges to prevent the sheets from being sucked against the table surface. The perforations in the suction belt preferably take the form of staggered slots which leave imperforate zones free along the center and adjacent the edges of the belt to help reduce undesirable belt stretching and the suction openings in the supporting surface increase in size adjacent the delivery end of the table.
A conveying table for conveying printed sheets to a printing press unit, said table comprising, in combination, at least one suction chamber having a support surface defining a plurality of suction openings, a suction fan communicating with said suction chamber for creating a partial vacuum therein, at least one perforated suction belt formed with imperforate edges, said suction belt being rotatable around said suction chamber and over said support surface and said suction openings, with said imperforate edges being disposed outboard of said suction openings, and means defining a plurality of vent orifices in said support surface of said suctions table disposed parallel to said suction belt for communicating with atmosphere separately from said suction chamber and said suction openings, at least some of said vent orifices being disposed outboard of said imperforate edges of said suction belt and at least some of said vent orifices being disposed beneath said imperforate edges of said suction belt.
Dependencies are inferred from the claim text.