Device for reducing noise emissions
AssigneeHeidelberger Drucksmaschinen AG
InventorsChristian Hieb, Daniel Conzelmann, Günter Stephan
Life of this patent
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Abstract
A device for reducing the noise emissions of a machine for printing flat material, wherein flat material is transportable across an impression cylinder, comprising at least one muffling element disposed across a portion of a transport path of the flat material extending along the impression cylinder, directly behind or downline from a nip, as viewed in the direction of the transport path, and at a spaced distance from the impression cylinder; and a machine including the device.
Claims19
A sheet fed rotary printing unit through which sheets pass in a processing direction along a conveying path, comprising:
- an impression cylinder having a sheet bearing surface;
- a blanket cylinder, said blanket cylinder and said impression cylinder forming an impression nip, a first wedge-shaped space, with respect to the processing direction, upstream from said impression nip, and a second wedge-shaped space downstream from said impression nip;
- and
- at least one muffling element disposed within said second wedge-shaped space.
A sheet fed rotary offset printing machine having at least one printing unit through which sheets pass in a processing direction along a conveying path, the printing unit comprising:
- an impression cylinder having a sheet bearing surface;
- a blanket cylinder, said blanket cylinder and said impression cylinder forming an impression nip, a first wedge-shaped space, with respect to the processing direction, upstream from said impression nip, and a second wedge-shaped space downstream from said impression nip;
- and
- at least one muffling element disposed within said second wedge-shaped space.
Dependencies are inferred from the claim text.