Static structures (e.g. – buildings) – Multiroom or level – Multilevel
Patent
1995-02-22
1996-12-31
Zimmerman, John
Static structures (e.g., buildings)
Multiroom or level
Multilevel
522363, 52263, 114 85, E04B 510, E04C 208, E04C 236, B63B 348
Patent
active
055882684
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a plate element, in particular made of steel, consisting of two parallel outer sheets which are connected firmly to one another by means of interposed web plates which are welded to the outer sheets.
2. The Prior Art
A plate element of the generic type described above is described in the European Patent 0,238,603. In the known plate element, there are web plates in the form of a corrugated plate, where the ridges of the corrugations are welded to the outer sheets. The manufacture of the known plate element is relatively complicated and expensive. It is almost impossible to manufacture a sheet-metal plate with a precisely uniform corrugation. When the plate element is being fitted together, slight pressure on the corrugation may cause a change in the ridge heights and thus in the distance between the outer sheets. The known plate element is constructed in a disadvantageous manner during its manufacturing process, i.e. the hollows of the corrugations are connected firstly from the inside by a weld extending right into the inner surface of a first outer sheet resting against them. The second outer sheet is then placed on the ridges of the corrugations, and a second weld is welded from the outside through the outer sheet, extending right into the ridges. Manufacturing the known plate element therefore requires individual process steps to be carried out successively. Any deviations occurring in each individual process step may cumulatively result in the manufacture of a plate element of little precision. Furthermore, the corrugations have the additional disadvantage that it will hardly be possible to make an opening in a finished plate element using cutting tools.
SUMMARY OF THE INVENTION
The invention is based on the object of providing a plate element which, with the possibility of a simple, but nevertheless precise manufacture, can be mounted and finished easily and can be used in a versatile manner.
This object is achieved according to the invention in that each web plate is a strip whose longitudinal edges are butt-joined to the respectively facing inner surface of the respective outer sheet, and in that the welding is formed in each case by a weld which extends through the respective outer sheet into the abutting longitudinal edge of the respective web plate strip.
Web plate strips can be cut to size with sufficient precision in respect of their dimensions. The web plate strips are butt-joined with the outer sheets and fixed, in particular, by means of a laser weld which extends from the outside through the respective outer sheet into the longitudinal edge of the respective web plate strip. Electrowelding by means of spot or wheel electrodes--or even bonding--is also conceivable. A plate element made of steel sheet can thus be manufactured quickly and precisely, which is relatively insensitive to compression forces acting from the outside during the manufacturing process since the individual web plate strips are disposed perpendicular to the outer sheets and can absorb corresponding compression forces acting on the outer sheets better than a corrugated web plate.
According to a preferred development, the outer sheets are cut into rectangles and the web plate strips are interposed in each case running parallel to the longer rectangular sides of the outer sheets. The rectangular shape of the plate elements permits the plate elements to be used as wall and/or floor elements. For example, a panel-like wall covering can be effected in shipbuilding. A ship's deck can be produced using the plate elements according to the invention, in that said plate elements are laid in the manner of planks over corresponding lower chords.
According to a further advantageous development, the long rectangular sides of the outer sheets are extended by a predetermined amount beyond the respective outermost web plate strips so that the outer sheets have a projection.
It is particularly advantageous for a tongue element, which protrudes beyond the ass
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Mohlenkamp Hans
Sterflinger Fritz
Jos. L. Meyer Werft GmbH & Co.
Zimmerman John
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