Patent · US Expired

Stack stop assembly on a sheet feeder of a printing press

US4690394A · kind A · utility

4Cited by

3References

4Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Bernhard Maul · Heidelberg, DE
Gunter Zobl · Schallstadt, DE
Hans-Jurgen Kusch · Neckargemünd, DE

Key dates

Filing date	Mar 1, 1985
Grant date	Sep 1, 1987
Priority date	—
Expiry date	Mar 1, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H3/48
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A stack stop assembly is on a sheet feeder of a printing press having an impression cylinder with grippers disposed thereon formed with respective sheet stops. A row of suckers and a pair of conveyor rollers are disposed between the sheet feeder and the impression cylinder. An uppermost sheet of a stack of sheets is liftable at a leading edge thereof by the row of suckers over and beyond stack stops of the stack stop assembly and being feedable to the pair of conveyor rollers for advancing the uppermost sheet to the sheet stops formed on the impression-cylinder grippers. The stack stop assembly includes swivel bearings supporting the stack stops, respectively, at both sides thereof, each of the stack stops having a journal pin to which a pivot arm is secured.

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