Beam structure for a web forming machine
AssigneeMetso Paper, Inc.
InventorsLeo Kurkinen, Rami Vanninen, Sami Lumijarvi, Kari Vasenius, Kari Holopainen, Reijo Hassinen, Hannu Nikula, Jukka Samppala
Life of this patent
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Abstract
A beam structure for a web forming machine is arranged to be supported by its end components (10) on the web forming machine. The beam structure includes a casing structure (15) of a thin-sheet material, inside which a stiffener structure (30) is arranged. In addition, the casing structure (15) and the stiffener structure (30) are secured to each other to create a load-bearing beam structure.
Claims28
1-25. (canceled)
A beam structure in a web forming machine comprising:
- a first beam, constructed of one piece of folded sheet material less than 15 mm thick, which extends in the cross machine direction across a web in the web forming machine, the first beam supported by end components on the web forming machine, wherein the first beam has a plurality of folds extending in the cross machine direction;
- a casing structure, surrounding the first beam, and constructed of folded sheet material less than 15 mm thick which extends in the cross machine direction across the web in the web forming machine, wherein the casing structure is mounted to the first beam by a heat insulating material which forms a fixed structural link between the first beam and the casing structure.
A beam structure in a web forming machine comprising:
- a first beam extending in the cross machine direction across a web in the web forming machine, the first beam supported by end components on the web forming machine;
- a casing structure, surrounding the first beam constructed of sheet material 1-5 mm thick, which extends in the cross machine direction across the web in the web forming machine;
- and
- an intermediate structure, wherein the intermediate structure is fitted between the first beam and the casing structure, and is attached by a first plurality of elastic masses to the first beam and is attached by a second plurality of elastic masses to the casing structure.
A beam structure in a web forming machine comprising:
- a casing structure, constructed of sheet material 1-5 mm thick, which extends in the cross machine direction across the web in the web forming machine;
- a plurality of intermediate stiffeners positioned on the interior of the casing, and spaced from one another in the cross-machine direction, said intermediate stiffeners formed of sheet material having a thickness of 2-5 mm, wherein the thickness is arranged to extend in the crossmachine direction.
Dependencies are inferred from the claim text.