Patent ID: 8168042

Claim:
A bar arrangement for a machine for producing a web of fibrous material, the web being one of a paper web, a cardboard web, and a tissue web, the machine including a frame, said bar arrangement comprising: at least one fixed structure which is mounted one of directly and indirectly to the frame of the machine, the bar arrangement extending transversely to a machine direction; an actuation device; at least one movable bar which is connected with said fixed structure and which includes a lower area, a plurality of sections, a side, an outside, and a longitudinal direction, said movable bar being movable, relative to said fixed structure, by way of said actuation device at least between an inoperative position and an operating position in which said movable bar is configured for being pressed against an element by way of a selectable contact force; at least one fixed guide device which is mounted rigidly one of (a) on said fixed structure and (b) one of directly and indirectly on the frame of the machine, said fixed guide device having a guiding effect upon said movable bar and including a plurality of fixed c-shaped guide units located at a distance from each other, said plurality of fixed c-shaped guide units including an inside and a plurality of fixed guide arms, said plurality of fixed c-shaped guide units surrounding one said side of said movable bar in said lower area of said movable bar, at least in said plurality of sections, with said plurality of fixed guide arms; and at least one return mechanism configured for bringing said movable bar from said operating position into said inoperative position, said return mechanism including at least one guided part, at least one guiding part, and at least one moving apparatus, said guided part being located on said outside of and longitudinally on said movable bar, said guided part having a slanted ascending surface with a slant which is aligned with said longitudinal direction of said movable bar at an angle in a range below 5° to 60° , said guiding part located on said inside of a respective one of said plurality of fixed c-shaped guide units, said guiding part being configured for being brought into contact with said slanted ascending surface of said guided part while said movable bar is moved from said operating position into said inoperative position, said moving apparatus being configured for acting upon said movable bar in order to move said movable bar in said longitudinal direction of said movable bar, said longitudinal direction of said movable bar extending in a cross-machine direction.