Sheet feeder having lifting unit

US8177223B2 · kind B2 · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Eckhard Bauer · Kiel, DE
• Soenke Christian Bluethgen · Rodewisch, DE
• Dimitrios Kostudis · Wedel, DE
• Jorg Leyser · Kiel, DE
• Ingo Neuber · Bornstein, DE
• Stefan Schluenss · Schacht-Audorf, DE

Key dates

• Filing date: Apr 10, 2008
• Grant date: May 15, 2012
• Expiry date: Apr 10, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1125
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A lifting unit and a process for lifting a stack of sheets having at least a first support (20, 120, 220) and at least a second support (22, 122, 222) are described. The first support defines a first con-toured or flat support surface, and the second support defines a second support surface which has a substantially horizontal, flat main surface. In the lifting unit at least one unit is provided for lifting the first and second supports. During operation the supports are lifted such that at least a highest point of the first support is kept elevationally above the second support, the second support is lifted more quickly than the first support, and the substantially horizontal, flat main surface of the second support is kept in its horizontal alignment. The lifting unit is described, in combination with a sheet feeder.