Offset printing unit

US6408747B1 · kind B1 · utility

Assignee

• MAN Roland Druckmaschinen AG · DE

Inventors

• Gunter Koppelkamm · Treuen, DE
• Ralf Schädlich · Plauen, DE
• Johannes Behmel · Plauen, DE

Key dates

• Filing date: Feb 1, 1999
• Grant date: Jun 25, 2002
• Expiry date: Feb 1, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41P2227/11
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An offset printing unit includes at least one cylinder pair with a form cylinder and a transfer cylinder. The transfer cylinder cooperates with an impression cylinder in such a way that ink can be applied to a printing material web guided between the transfer cylinder and the impression cylinder. In order to permit the economic production of multifarious products with a relatively low technical outlay, the form cylinder is fitted in the circumferential direction with one, and in the longitudinal direction with at least four, portrait printed pages in broadsheet format. The form cylinder may optionally be fitted with landscape printed pages in tabloid format or portrait or landscape printed pages in book format. A circumference of the form cylinder receives one flexible printing plate and a longitudinal length of the form cylinder receives at least one flexible printing plate. The circumference of the transfer cylinder and the circumference of the impression cylinder in each case is an integral multiple of the circumference of the form cylinder.