Sheet-feeding device

US6027110A · kind A · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Herbert Herrmann · Obertshausen, DE
• Stefan Hartmann · Eggolsheim, DE
• Knut Wilde · Neu-Isenburg, DE
• Peter Eilitz · Offenbach, DE

Key dates

• Filing date: Jun 12, 1998
• Grant date: Feb 22, 2000
• Expiry date: Jun 12, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H5/025
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A sheet-feeding device for the cyclic feeding of separated sheets from a sheet stack of a sheet feeder to a sheet processing machine or an onward conveying device is provided. The sheet-feeding device includes one or more first conveying rollers of relatively small diameter which are rotatably arranged close to the leading edge of the sheet stack of the sheet feeder and around which one or more endless drive tapes are guided, the latter starting from the first conveying roller, extending approximately in the conveying direction and wrapping around a second conveying roll that is arranged at a distance from the first conveying roller. The device also includes an upper conveying roller mounted above the first conveying roller for rotation about an axis parallel to the axis of the first conveying roller. The upper conveying roller and the first conveying roller are arranged such that the leading edge of the respective sheets fed from the sheet feeder are seized between the upper conveying roller and the drive tape and transported onwards through the rotation of the first and second conveying rollers and the upper conveying roller.