Patent ID: 7708680

Claim:
Arrangement in a cardboard creasing machine comprising a system of at least a rotatable first roller and a rotatable second roller each possessing an outer surface which together define cooperating creasing dies creating a crease pattern on each and every blank of a cardboard web of coherent such blanks positively run through the creasing machine and passed between the first and second rollers, the creasing dies comprising an outwardly projecting male creasing die extending circumferentially on the first roller and an inwardly recessed female creasing die extending circumferentially on the second roller, the first roller and the second roller being positioned in confronting relation to each other with the male creasing die and the female creasing die aligned with one another and cooperating with one another during rotation of the first and second rollers to produce the crease pattern on the cardboard web passing between the first and second rollers, the first roller including an interruption area at which the circumferentially extending male creasing die is interrupted to produce an interruption in the crease pattern of the web at a portion of the web that is to form an overlap seal, a portion of the circumferentially extending female creasing die which cooperates with the interruption area being provided with a cantilever arrangement which supports the cardboard web on a level coinciding with or radially outwardly of an outermost surface of the second roller to avoid wild creases on the cardboard web.