Patent ID: 6138559
Filing Date: 2000-10-31
Classification: D06B,D21G

Abstract:
An apparatus for processing web-shaped material (90) comprising a working roller (5) extending in the longitudinal direction of the apparatus, a counter support (6) forming a counter support surface against which the web material (90) is pressable over the whole working breadth, which corresponds to the web width, by means of the working roller (5), a pressure bearing structure (3) with a front side for surface mounting the working roller (5) on this front side and applying a pressing force to said working roller, a supporting carrier (1) extending in the longitudinal direction of the apparatus, the pressure bearing structure (3) and a supporting wall (12) of the supporting carrier (1) being arranged to be movable relative to one another in the pressing direction, and a pressing device (2) for generating a pressing force, the pressing device (2) comprising a cavity (15) between said pressure bearing structure (3) and said supporting wall (12), and a pressure hose arranged in said cavity (15), said cavity (15) extending in the longitudinal direction of the apparatus and changing with said relative movement, a pressing chamber (20) with oval or flat cross section being provided between a counter support surface (31) for the hose formed on said pressure bearing structure (3) and the supporting wall (12) for applying a pressing force over the rear side of the pressure bearing structure, the pressing volume of said pressing chamber being defined by the amount of pressing medium contained in the pressure hose, characterised in that the pressure hose is provided as a pressure hose element (2.N) which comprises an L-, U- or oval-shaped form when the apparatus is viewed in longitudinal section, at least one bent portion (22) directed away from the counter support surface (31) for the hose towards the rear side of the apparatus and a supporting portion (21) adapted to lie in planar fashion against said counter support surface (31) for the hose, a hose free space (150) being formed within said cavity (15) at each filling state of the hose by each bent portion (22) between said counter support surface (31) for the hose and the supporting wall (12).