Patent · US Expired

Device for drawing and bending printing plates

US5309835A · kind A · utility

10Cited by

3References

12Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Georg Hartung · Seligenstadt, DE
Helmut Schild · Rheinböllen, DE
Manfred Herold · Offenbach am Main, DE

Key dates

Filing date	Apr 30, 1993
Grant date	May 10, 1994
Priority date	—
Expiry date	Apr 30, 2013

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F27/1206
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A device for drawing and bending the trailing edge of a printing plate onto a plate cylinder of a printing machine such as a sheet-fed rotary printing press, in which a pressure roller with an attached actuatable folding strip draws a printing plate, which has its leading print edge fastened into a tension rail, around the outer circumference of the plate cylinder as the plate cylinder is rotated, to a position where the folding strip is actuated thereby introducing the trailing edge of the printing plate into a second tension rail. The device provides a means for drawing the printing plate onto the printing cylinder with a desirable uniform tension and without requiring auxiliary devices for pre-folding the printing plate in order to secure the trailing printing plate edge into a tension rail.

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