Patent ID: 7647845
Filing Date: 2010-01-19
Classification: B65H

Abstract:
1. A method for determining web tension or web tensile force in a printing substrate web, wherein a device is arranged at a first position along a transport path of the printing substrate web, wherein the device supplies a signal, which makes it possible to deduce the web tension in effect at the first position or the web tensile force in effect at the first position, wherein the web tension in effect at a second position along the transport path of the printing substrate web or the web tensile force in effect at the second position is determined arithmetically, namely from the web tension in effect at the first position or from the web tensile force in effect at the first position as well as from forces, which at least one driven roller and/or at least one trailing roller, which is/are arranged along the transport path of the printing substrate web between the first position and the second position, introduce to the printing substrate web.