Patent ID: 7464929
Filing Date: 2008-12-16
Classification: B41F,B65G,B65H

Abstract:
1. An apparatus for carrying or guiding a printing material sheet on an air cushion between a nozzle surface and the printing material sheet, comprising: a plurality of first nozzle pairs formed in the nozzle surface along a first row, each of said first nozzle pairs having a blower nozzle and a suction nozzle; a plurality of second nozzle pairs formed in the nozzle surface along a second row, each of said second nozzle pairs having a blower nozzle and a suction nozzle; said first and second nozzle pairs being disposed for generating the air cushion between the nozzle surface and the printing material sheet; said blower nozzle and said suction nozzle of each of said nozzle pairs being paired such that an air flow emitted by said blower nozzle is aspirated, at least predominantly, by the respective said suction nozzle; said suction nozzles of said first nozzle pairs being disposed between said blower nozzles of said second nozzle pairs and said suction nozzles of said second nozzle pairs such that the air flows of said second nozzle pairs flow past said suction nozzles of said first nozzle pairs; and third nozzle pairs disposed in a third row and fourth nozzle pairs disposed in a fourth row for generating the air cushion, said third nozzle pairs and said fourth nozzle pairs being configured and arranged mirror-symmetrically with regard to said first nozzle pairs and said second nozzle pairs said third nozzle pairs and said fourth nozzle pairs being configured to form air flows oriented antiparallel with regard to the air flows of said first nozzle pairs and the air flows of said second nozzle pairs.