Patent · US Expired

Reversing or turning assembly of a sheet-processing machine

US6851361B2 · kind B2 · utility

5Cited by

13References

13Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Christian Gorbing · Heidelberg, DE
Karl-Heinz Helmstadter · Heidelberg, DE
Raimund Schroder · Hockenheim, DE

Key dates

Filing date	Apr 17, 2003
Grant date	Feb 8, 2005
Priority date	—
Expiry date	Apr 17, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F21/106
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A reversing or turning assembly of a sheet-processing machine includes an impression cylinder having a circumferential surface for transporting sheets thereon for printing the sheets in a printing nip associated with the impression cylinder. Gripper devices are provided for gripping the printed sheets at a respective trailing edge thereof and for lifting the gripped sheets off the impression cylinder for reversing the gripped sheets. The circumferential surface of the impression cylinder is formed with recesses in a region thereof occupied by the trailing edge of the sheets, for permitting the gripper devices to penetrate or dip into the recesses to grip the sheet trailing edge. The recesses have a position being variable in circumferential direction of the circumferential surface of the impression cylinder for adapting to different sheet formats.

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