Blow tube for a sheet-stacking apparatus

US6196540A · kind A · utility

Assignee

• Jagenberg Papiertechnik GmbH · DE

Inventors

• Frank Schmid · Poppenricht, DE
• Jürgen Menzel · Munich, DE

Key dates

• Filing date: Jun 23, 1998
• Grant date: Mar 6, 2001
• Expiry date: Jun 23, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/176
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A sheet-stacking apparatus has a conveyor including a plurality of parallel upper belts extending in a transport direction for delivering a succession of sheets one at a time to a stacking station and a plurality of blow tubes each having a main portion extending in the direction. The main portions are interleaved with the upper belts and are each formed with a plurality of downwardly open holes. Respective tubular rivet bodies set in the holes have heads bearing upward against the respective tube main portions and form downwardly open nozzles. Interiors of the tubes can be pressurized with air to project jets of air downward from the nozzles of the tube main portions.