Patent · US Expired

Sheet-guiding device in a sheet-processing machine

US7000917B2 · kind B2 · utility

3Cited by

33References

19Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Karl-Heinz Helmstadter · Heidelberg, DE
Thorsten Eckart · Ilvesheim, DE
Peter Hachmann · Dossenheim, DE

Key dates

Filing date	Apr 14, 2003
Grant date	Feb 21, 2006
Priority date	—
Expiry date	Oct 5, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H2601/251
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A sheet-guiding device in a sheet-processing machine, in particular a sheet-fed rotary printing press, includes gripper devices disposed on revolving components of the sheet-processing machine for guiding the sheets to be printed on an air cushion formed by blast air. A multiplicity of free jet nozzles, disposed radially outside a path of movement of the gripper devices, form the air cushion. The free jet nozzles serve for producing free air jets tangentially delimiting an optimized path of movement of the sheets. The optimized path of movement extends in the vicinity of the path of movement of the gripper devices.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.