Service walkway for sheet-stacking apparatus

US6227537A · kind A · utility

Assignee

• Jagenberg Papiertechnik GmbH · DE

Inventor

• Frank Schmid · Poppenricht, DE

Key dates

• Filing date: Feb 24, 1999
• Grant date: May 8, 2001
• Expiry date: Feb 24, 2019

Classification

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

Abstract

An apparatus for stacking sheets has a frame defining a stacking station, a conveyor for delivering the sheets continuously one after the other at a predetermined upper level in a transport direction to the station, a platform vertically displaceable in the stacking station between the upper level and the lower level, and a drive for displacing the platform vertically. Stops are provided on the frame at an intermediate level below the upper level, above the lower level, and slightly above a stack of maximum height supported on the platform with the platform at the lower level. A walkway is vertically displaceable on the frame immediately downstream of the stacking station between an upper position generally at the upper level and a lower position at the intermediate level. The platform is engageable underneath the walkway for raising the walkway from the intermediate level to the upper level on movement of the platform upward past the intermediate level to the upper level.