Supporting wooden panel element for constructing ceilings or bridges and use of a screw for connecting boards to form a panel element
AssigneeSFS Industrie Holding AG
InventorUlrich A. Meierhofer
Life of this patent
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Abstract
In a wooden panel element (1) for ceiling structures or for bridge construction there is provided a plurality of boards (25) standing on edge perpendicular to the plane of the panel element (1) and running along the entire length thereof, which boards are joined together by screw fastenings. The individual boards (25) are joined together at least partly by screws (27) driven at an acute angle to the surface thereof, each of these screws (27) passing through two successive boards (25). Also provided close to the upper edge (30) and the lower edge (31) of the boards (25) are screws (28) driven at right angles to the surface (26) of the boards (25).
Claims14
A load-bearing wooden panel element for ceiling structures or for bridge construction, comprising a plurality of individual layers of boards standing on edge perpendicular to the plane of the panel element, which boards are joined together by screw fastenings, characterized in that the individual boards (25) are joined together at least partly by screws (27) driven at an acute angle to the surface thereof and disposed at least approximately in a plane running transverse to the longitudinal extent of the panel element (1), which screws pass through at least two successive boards (25).
Dependencies are inferred from the claim text.