Method and device for further processing of sheets to produce multi-page printed products
AssigneeMaschinenbau Oppenweiler Binder GmbH & Co. KG
InventorsHagen Wetzel, Claus-Dieter Redmer, Eberhard Krieger
Life of this patent
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Abstract
A method and a device for further processing of sheets to produce multi-page printed products, several initial sheets (19) are each folded into a folded sheet (20) and subsequently collated one on top of the other such that the fold areas lie at the top and the folded sheets (20) open downwardly. A grooved line (30) is formed in each initial sheet (19) before folding, around which grooved line (30) the initial sheet (19) is subsequently folded, the depth and the width of the grooved line (30) being increased, initial sheet (19) by initial sheet (19), by a predetermined amount.
Claims2
A method for further processing of sheets to produce multi-page printed products, wherein several initial sheets are each folded into a folded sheet and subsequently collated one on top of the other such that fold areas lie at the top and said folded sheets open downwardly, a grooved line being formed in each of said initial sheets before folding, around which grooved line said initial sheet is subsequently folded, the depth and the width of said grooved line being increased, initial sheet by initial sheet, by a predetermined amount.
A device for further processing of sheets to produce multi-page printed products comprising a folding unit for folding initial sheets into a folded sheet around a grooved line, grooving means provided upstream of said folding unit in a sheet running direction, said grooving means comprising a grooving wheel having a convex curvature at its outer circumference and forming a grooved line in each of said initial sheets passing through in a running plane before folding, and collating means in which said folded sheets are collated one on top of the other such that a fold area lies at the top and said folded sheets open downwardly, wherein adjusting means controlled by control means is provided, which adjusting means advances said grooving wheel gradually each time after the forming of a grooved line in an initial sheet towards the direction of the running plane.
Dependencies are inferred from the claim text.