Gatherer stitcher with variable chain pitch

US7988138B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Torsten Brünner · Borsdorf, DE
• Frank Jaentschel · Leipzig, DE
• Torsten Krause · Vellmar, DE
• Andreas Steinert · Langenfeld, DE
• Siegmar Tischer · Borsdorf, DE

Key dates

• Filing date: May 18, 2009
• Grant date: Aug 2, 2011
• Expiry date: Oct 5, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B42C1/12
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A gatherer stitcher for collating signatures made of paper, paperboard and the like, for stitching the collated signatures and for delivering the stitched signatures, includes a gathering section, a stitching station and a delivery station. The stitching station has a stitching carriage with at least one stitching head and, during a stitching operation, the stitching carriage is moved by a stitching carriage drive at a speed of the collated signatures. A switching unit is disposed between the stitching carriage drive and the stitching carriage for adapting a stitching carriage movement to a gatherer chain pitch, that is to say for adapting a horizontal reciprocating movement of the stitching carriage, and for adapting a horizontal distance between the stitching carriage and the delivery station.