Sheet braking method and device with downward deflection of sheet ends for shingling

US5265861A · kind A · utility

Assignee

• Jagenberg Aktiengesellschaft · DE

Inventors

• Georg Schaffner · Neuss, DE
• Egbert Most · Southbury, US
• Ewald G. Welp · Erkrath, DE
• Ingo Becker · Linnich, DE
• Peter Naudascher · Hilden, DE

Key dates

• Filing date: Jul 30, 1991
• Grant date: Nov 30, 1993
• Expiry date: Jul 30, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1764
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method and apparatus for the stacking of paper engages the oncoming sheets at their rear ends between clamping elements on upper and lower belts and is so provided that the rear ends are deflected perpendicular to the direction of feed so that the oncoming sheets can effectively shingle over underlying sheets. The clamping portions are engaged at the feeding speed of the sheets at the moment of initial contact, are then slowed down to reduce the speed of the sheets, then release the sheets and then return to the usual speed for the pickup of the next sheet.