Patent · US Expired

Positioning device for a rubber-blanket cylinder

US5697296A · kind A · utility

5Cited by

5References

8Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Norbert Thunker · Weinheim, DE
Martin Mayer · Ladenburg, DE
Werner Weber · Munich, DE

Key dates

Filing date	Apr 29, 1996
Grant date	Dec 16, 1997
Priority date	—
Expiry date	Apr 29, 2016

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F13/28
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A positioning device for a rubber-blanket cylinder which is supported in double-excentric bearing rings allows a positional adjustment of the rubber-blanket cylinder relative to a plate cylinder and a printing substrate supported on an impression cylinder. The plate cylinder and the impression cylinder have stationary axes of rotation relative to the frame of the printing unit. A printing gap is adjusted by the positioning device to varying printing substrate thickness, and in one terminal position, the rubber-blanket cylinder is fully disengaged from the other cylinders. The rubber-blanket cylinder is shifted along a positioning path with one segment following an arc of a circle which is concentric with the plate cylinder. The parameters of the bearing and the adjusting devices are defined such that the positioning path is traversed while the respective inner and outer bearing rings rotate continuously.

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