Transportation device for deflecting flat consignments

US6533266B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Holger Schererz · Rehfelde, DE
• Frank Voss · Berlin, DE
• Matthias Prasser · Konstanz, DE

Key dates

• Filing date: Nov 17, 2000
• Grant date: Mar 18, 2003
• Expiry date: Nov 17, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1916
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The invention pertains to a transport device for rerouting flat mail pieces (6) that are transported clamped between an endless lower band (1) and an endless upper band (2), wherein the upper band (2) is realized in a longitudinally elastic fashion and guided back in an outwardly directed loop. According to the invention, an inexpensive and space-saving rerouting with the least possible stress on the mail pieces is realized due to the fact that the driven lower band (1) is guided on a stationary, immovable guide element (3) with a sliding surface that has the shape of a curved segment, and the sliding surface of the curved segment has a lower coefficient of friction than the lower band (1) and the mail pieces (6). The lower band (1) has a low coefficient of friction on its side facing the guide element (3) and has a high coefficient of friction on its side facing the non-driven upper band (2) and the mail pieces (6). The lower band is deflected inward by means of deflection rolls (7) in such a way that it is looped around a driving roll (5) arranged within the guide element (3) with its side that has a high coefficient of friction.