Static structures (e.g. – buildings) – Module or panel having discrete edgewise or face-to-face... – Having integral key
Patent
1993-07-20
1995-01-17
Friedman, Carl D.
Static structures (e.g., buildings)
Module or panel having discrete edgewise or face-to-face...
Having integral key
523099, 52468, 525881, 525891, E04B 232
Patent
active
053816382
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an elongated building element, preferably one having a tongue and groove. A conventional building element is of thick gauge mostly solid material and is thus too heavy, to be earned by one person alone. Such building elements are used for constructing outer and inner walls, roofs, and also floors. Grooves and tongues are arranged to cooperate to ensure a coherent surface when the elements are fitted together. It is also possible to build walls out of logs dovetailed at the corners, in which case each building element, besides having tongues and grooves, will be provided with a transverse recess with a width corresponding to the thickness of the element and a depth generally half the height of the element. Instead of tongues and grooves, a pole may be passed through building elements stacked one on top of the other in order to hold them together.
SUMMARY OF THE INVENTION
The object of the present invention is to produce a thick building element equivalent to the above but having the great advantage that the element can without difficulty be carried by one person because of its light weight. This is achieved according to the invention in that a core of plastic is used which has two opposite hard layers, suitably consisting of sheet metal, to which the plastic is adhered. The latter building element may also be provided with a tongue and groove, in which case said layers are shaped so that their extensions also cover the vertical walls of the tongue and groove.
A building element according to the present invention is most suitably manufactured by using a mould, said layers being placed on the inner sides of the mould. Once this has been done, the space between the two layers is filled with plastic in liquid form which is then allowed to solidify. A suitable liquid plastic is polyurethane which also has the ability to adhere to the inner surfaces of the layer.
Additional characteristics of the present invention are revealed in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be described in more detail with reference to the accompanying seven sheets of drawings in which;
FIG. 1 shows a building element according to the present invention,
FIG. 2 shows the same building element as FIG. 1 but with two recesses,
FIG. 3 shows a wall constructed out of two building elements,
FIG. 4 shows how a corner is formed with the aid of building elements,
FIG. 5 shows a surface unit comprising building elements of a first further development,
FIGS. 6 and 7 show the further developed building element seen in perspective in two different directions,
FIG. 8 shows how the building elements are combined together,
FIG. 9 shows a surface element with a second further development of the building element,
FIGS. 10 and 11 show the building element used in FIG. 9, from two different directions,
FIG. 12 shows how the building elements according to FIG. 9 are combined,
FIG. 13 shows a covering strip used in all surface units,
FIG. 14 shows a surface unit under construction, using building elements according to a third further development,
FIG. 15 shows the surface element used in FIG. 14, and
FIG. 16 shows how two surface elements as shown in FIG. 15 are joined together.
A building element is shown in FIG. 1 which has a plastic core 1 and two opposite layers 2 and 3, preferably of sheet metal. Said layers are also bent to form the vertical surfaces of a tongue 4 and groove 5. A building element according to FIG. 1 is suitably manufactured by placing the two layers 2 and 3, one in each side of a mould. The mould is then filled with liquid polyurethane foam which then solidifies, thus forming the building element shown in FIG. 1. Since the building element according to FIG. 3 has a plastic core, extremely thick units can be produced which, thanks to the plastic, are so light that they can be carried by one person. Since the building element is provided with a tongue and groove, a wall can easily be built by stacking a number of building eleme
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Arnes Plat AB
Friedman Carl D.
Wilkens Kevin D.
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