Support beam made of composite fiber material
First Claim
1. A support beam for at least one scraper blade adapted for interaction with the shell-surface of a roll or drying cylinder of a machine for the production or processing of fibrous webs, said support beam comprising:
- an oblong hollow body having at least two longitudinal walls with a convex curvature, said convex curvature defining a radius of curvature greater than a width of each longitudinal wall, said hollow body comprising a composite fiber material having a major fiber orientation extending essentially in the longitudinal direction of said hollow body, said longitudinal walls of said hollow body joined exclusively by means of transition sections having a radius of curvature which is smaller than the width of an adjacent longitudinal wall.
1 Assignment
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Accused Products
Abstract
The present invention is directed to a support beam for a scraper blade which is in contact with the shell surface of a drying cylinder. The support beam comprises an oblong hollow body made of a fiber composite material wherein the major fiber orientation is essentially in the longitudinal expanse of the hollow body. The hollow body has at least two longitudinal walls of convex curvature as well as two transition sections of convex rounding which connect the longitudinal walls to one another. The radius of curvature of each longitudinal wall is greater than its width while the radius of curvature of each transition zone is smaller than the width of an adjacent longitudinal wall.
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Citations
16 Claims
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1. A support beam for at least one scraper blade adapted for interaction with the shell-surface of a roll or drying cylinder of a machine for the production or processing of fibrous webs, said support beam comprising:
an oblong hollow body having at least two longitudinal walls with a convex curvature, said convex curvature defining a radius of curvature greater than a width of each longitudinal wall, said hollow body comprising a composite fiber material having a major fiber orientation extending essentially in the longitudinal direction of said hollow body, said longitudinal walls of said hollow body joined exclusively by means of transition sections having a radius of curvature which is smaller than the width of an adjacent longitudinal wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. In combination, a shell surface of a roll for a machine used in the production of fibrous webs, a scraper blade interacting with said shell surface, and a support beam attached to said scraper blade, said support beam comprising:
an oblong hollow body having at least two longitudinal walls with a convex curvature, said convex curvature defining a radius of curvature greater than a width of each longitudinal wall, said hollow body comprising a composite fiber material having a major fiber orientation extending essentially in the longitudinal direction of said hollow body, said longitudinal walls of said hollow body joined exclusively by means of transition sections having a radius of curvature which is smaller than the width of an adjacent longitudinal wall.
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16. In combination, a shell surface of a drying cylinder for a machine used in the production of fibrous webs, a scraper blade interacting with said shell surface, and a support beam attached to said scraper blade, said support beam comprising:
an oblong hollow body having at least two longitudinal walls with a convex curvature, said convex curvature defining a radius of curvature greater than a width of each longitudinal wall, said hollow body comprising a composite fiber material having a major fiber orientation extending essentially in the longitudinal direction of said hollow body, said longitudinal walls of said hollow body joined exclusively by means of transition sections having a radius of curvature which is smaller than the width of an adjacent longitudinal wall.
Specification