Patent ID: 7419117

Claim:
A method for cutting off a free length of a web while winding-up a material web on a roller, which comprises: conveying a roll shaft from a start position where the winding-up of the material web is initiated, to a finish position where the winding up of the material web in a roll is complete, displacing a first pressure roller, that is rotatably mounted on a first pair of arms, between a first position where the first pressure roller is spaced from the roll shaft in the start position and a second position where the first pressure roller urges the material web against the roll shaft, displacing a second pressure roller, that is rotatably mounted on a second pair of arms, between a start position where the roller is free of the material web and positions other than the start position where the second pressure roller engages a periphery of a partly or completely wound-up material web on a web roll, displacing a cutting knife between a first position at a spaced distance from the web and a second position where the knife cuts through the web, and simultaneously or sequentially displacing the first pressure roller and the cutting knife from the first to the second position to transfer the web from the partly or completely wound-up web roll to an empty roll shaft, wherein the second pair of arms are pivotably mounted on the first pair of arms.