Method and apparatus for cross-folding signatures

US5547452A · kind A · utility

Assignee

• Albert-Frankenthal Aktiengesellschaft · DE

Inventors

• Manfred Kepert · Großkarlbach, DE
• Karl H. Zeiler · Frankenthal (Pfalz), DE

Key dates

• Filing date: Dec 9, 1994
• Grant date: Aug 20, 1996
• Expiry date: Dec 9, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H45/167
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A collecting cylinder and a folding flap cylinder cooperate to form a cross-folding device for signatures in a rotary printing press. The leading edge of each signature is initially retained on the collecting cylinder and is held there after insertion of the cylinder into the folding flap. The trailing edge of the signature is transferred to grippers on the folding flap cylinder at a point where the two cylinders are in contact. Operation of the cross-folding device results in reduced folded product damage.