Francotyp-Postalia Ag & Co.

Detlef Lutdke

Jurgen Quass

Uwe Hubler

A configuration for folding sheets with an increased functional reliability and field of use folds sheets of different lengths through the use of folding rolls and an adjustable stop in such a way that automatic matching of a folding gap to a thickness of a material to be folded is carried out and a folding blade and a folding pocket can be dispensed with, while executing the functions of simple folding, multiple folding, turning and smooth passage. The configuration includes folding rolls which rest against each other in a resilient manner and have a given diameter. Pressure rolls with a diameter which is smaller than half the given diameter are disposed in such a manner as to be adjustable and axially symmetrical in relation to the folding rolls. Furthermore, a stop can be adjusted into a region between the pressure rolls and at the same time is a diverting element. The pressure rolls are subdivided in the axial direction defining gaps therebetween and the likewise subdivided stop has an adjustment path projecting into the gaps. A conveying device in the form of additional driven guide rolls and further pressure rolls assigned thereto is provided as required.

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Berlin, Germany

Detlef Lutdke