NZ195866A - Panel with hollow parallel tubes - Google Patents

Abstract

Construction panels. They are constituted by two semi-blocks (2, 3) of synthetic foam molded, presenting semi-lyndridal holes longitudinal and transversal, which are revisted with carton tubes (11), plastic or similar matter, so that the assembly, once linked the semibloques, present longitudinal vacuum passages communicated between the whole panel width, which can be filled with concrete or proper material. The panels have projects (12) and empty (13) that facilitate the unión by machihembrate. (Machine-translation by Google Translate, not legally binding)

Description

195866 Patents Form No. 5 NEW ZEALAND PATENTS ACT 1953 COMPLETE SPECIFICATION "BUILDING PANEL AND METHOD OF UTILIZING SAME" I, WILLI ARPAGAUS a Swiss citizen of 39, route de Puplinge 1249 Puplinge/Switzerland, hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement:- ( The present invention relates to a building panel made of light-weight, moderately fragile material, capable of receiving a final sheathing, comprising empty passages adapted to be filled with adequate materials, said empty passages consisting partly of parallel tubes of cardboard.

This invention is also concerned with an improved method of constructing buildings by using panels of this type.

Many building methods have already been proposed which imply the use of juxtaposed elements such as brick, blocks, rough-casting, girders, reinforced-concrete panels or plaster panels, and lost shuttering elements.

As a rule, these last-mentioned elements have a poor resistance to concrete vibration and an insufficient transverse bonding strength.

However, these building methods have other inconveniences. Their implementation is both time-robbing and expensive. Brick or block walls must be coated internally and externally, preferably with the interposition of layers of insulating material. Walls made of reinforced concrete panels are sheathed internally with plaster so as to leave therebetween a gap subsequently filled with insulating material. Obviously, this arrangement is thoroughly illogical for in winter humidity condensates on the inner cold surfaces of the reinforced concrete panels, and the insulating material is thus caused to rot. To comply with the laws of physics and avoid condensation, a concrete wall must be isolated on its outer surface, but this is scarcely possible with hitherto known building materials.

It is known to provide building panel consisting of juxtaposed tubular elements adapted to be filled with concrete so as to constitute bearing panels. The major inconveniences of this building panel lie in the absence of transverse bonding between the tubular N.2. PATENT OFF ICE 2 OCT 1983 elements, so that the panel rigidity across the axes of said tubes is not sufficient, thus limiting the use of panels of this type.

The US Patent N° 4,038,798 discloses cardboard tubes embedded in synthetic foam,but the panel disclosed therein is attended by the same inconveniences as the building panel disclosed in the above-mentioned French Patent, i.e. the lack of transverse bonding.

The present invention is directed to avoid the above-mentioned inconveniences of prior art building panels by providing an improved buiiding panel combining a light weight, a good heat and sound insulation, and a high mechanical strength with the possibility of implementing a particularly fast building method. The panel of the present invention comprises a plurality of coplanar tubes parallel to one another and provided with radial apertures disposed along the coplanar generatrices of the tubes, so as to constitute transverse through passages extending throughout the panel width.

It is another object of the present invention to provide a building method consisting in juxtaposing the above-described panels used as lost shuttering elements into which, if desired, insulating materials and/or concrete, reinforced or not, are poured, of course after reserving the space to be occupied by doors and windows.

The use of tubes made of cardboard for constituting the lost shuttering is advantageous in that it is particularly strong when casting and vibrating the concrete, the circular section of the tubes causing the walls or partitions to be only traction-stressed. Thus, it is unnecessary to make very thick walls or partitions, so that a substantial reduction in panel weight and building cost is obtained, and in addition the building method is particularly easy to carry out.

Many advantageous results can be obtained with the present invention, and by using the technique of lost shutter- N.2. PATENT OFFmp - 3 - 1 0 OCT 1983 I O K CI < / I y j c u 0 ing it is possible with this invention to construct solid-concrete basement or foundation walls, story walls with the interposition of an insulating sheathing on the outer surface, with inner partitions of light concrete, plaster or other suitable material. The panels of this invention may receive directly a final coat, such as a rustic set on the outer surfaces and wall-paper on the inner surfaces. In addition, the fact of reserving the space to be occupied by windows and doors in solid erected walls before casting the concrete greatly simplifies the construction process.

The following disclosure sets forth more in detail a few forms of embodiment of the invention, given by way of example with reference to the attached drawing.

Fig.1 is a front elevational view^with parts broken away, showing a first form of embodiment of a building panel according to this invention; Fig.2 is a plan view from above of the panel of Fig.1; Fig.3 is a side elevational view of the panel of Fig.1; Fig.5 is a sectional view showing the manner in which two adjacent tubes are assembled, according to a second form of embodiment of the panel of this invention; of the tubes Figs.4 and 6 are side elevational views/showing the two opposite faces of this specific mode of assembling adjacent tubes; Fig.7 illustrates a third form of embodiment of the tube assembling method, and Fig.8 is a plan view from above showing the method of building a wall made of panels according to this invention.

Reference will now be made firstly to Figs.1 to 3 of the drawing, showing three orthogonal views of a panel 1 according to this invention, which consists of two blocks 2 and 3 of expanded polystyrene providing therebetween parallel hollow cylindrical passages 10 and transverse passages 14. The cylinders 10 are lined with tubes made of cardboard N.Z. PATENT OFFICE OCT 1983 RECEIVED 195866 11, so that they can withstand the concrete vibration. The panels are assembled in coplanar relationship by means of lapped joints 12,13 which, by alternating male and female portions 12,13 repsectively, permit the jointing of the panels. However, groove-and-tongue or scarf flat joints may also be used, if desired, for assembling the panels with one another. The passages 14 extend throughout the panel width.

If desired, the two blocks 2 and 3 may also be molded into a single piece of synthetic foam. The radial apertures 14 extend throughout the panel width, from one face to another. For this purpose, the tubes 11 of cardboard are provided with radial holes 14 having the same diameter and relative spacing as in the molded block. The tubes 11 are coated with glue and introduced into the block of expanded foam by causing their holes 14 to register with those of the molded block.

In a second form of embodiment illustrated in Fig. 5, the so-called interfitting tube panel comprises cardboard tubes 11a which, instead of being somewhat spaced from one another, are the jointed side by side and assembled by means of windows or ports 4 and bridges 5 interfitting one with the other as shown. Thus, along one side of the cardboard tube 11a a row of windows or ports 4 are cut so as to leave therebetween bridge portions 5 of a height a matching substantially that of the single windows, and on the diametrally opposite side the height b of windows 6 is about three times the height a of the bridge portions, so that every third single window constitutes a transverse passage 15 corresponding to the central portion of the opposite window 6 having a height b which is three times said height a.

The thus assembled cardboard tubes N.Z. PATENT OFFICE t 0 OCT 1983 RECEIV".:- i 95866 1 la are glued in the corresponding cavities formed in two blocks similar to blocks 2 and 3 of Figs.1 to 3 of the drawing It is also possible to prepare a panel incorporating tubular elements, as illustrated in Fig.7. In this modified form of embodiment, the tubes 11b are assembled by interfitting, as described hereinabove with reference to Fig.5, and coated on one side with insulating material 7 and on the opposite side with plaster or other similar material 8.

Before implementing the above-described panels, their main surfaces are covered with sheets or plates of a material selected from a wide range of known materials such as vegetable or mineral fibres, with or without the addition of agglomerated glass fibres, and with the addition of synthetic resins, plaster or cement. Preferably,^a material of moderate fragility will be selected, this material having preferably a surface capable of receiving a final internal and internal coat or lining. * The tubes may consist of ordinary cardboard or fireproof .(phenolated) cardboard.

If the panels of this invention are intended for erecting basement or foundation shutterings, they can be made of suitable synthetic (plastics) material and left in their molded condition for both internal and external surfaces. Thus the conventional and hitherto necessary application of a water tight or moisture-repellent coat is unnecessary since these panels have the required external water-tightness.

With the panels of this invention it is possible to construct a house structure consisting of multi-tubular panels and to finish the surfaces, for instance the internal surfaces with plaster panels or any other sheathing or lining material, and the space between adjacent tubes may be filled by injecting synthetic foam; the outer surface may be lined with a suitable insulating material such as expanded polystyrene to which a rustic set is eventually applied, and if desired the N.Z. PATENT OFFICE OCT 1983 RECEIVE! lining panels may match the configuration of the tubes in order to improve the adherence surface.

V/hen the panels incorporating the tubular elements are used for making basement walls or the like, it is possible to either fill up directly against the walls thus constructed, or line the walls with fibrocement panels, polystyrene panels or the like. The remaining grooves formed by the tubes are useful for draining water.

In the case of internal partition?, the tubes are filled with light concrete, mortar or any other suitable binder.

Of course, the panels according to the present invention can be manufactured in various widths and different materials, and also according to the various forms of embodiment described herein.

With the method of this invention and the panels of this invention it is also possible to build light temporary buildings; in this case, the panels remain unfilled and are assembled without using concrete, by simply cementing them. The space for doors and windows is cut in the solid walls.

With the panels of this invention, which comprise transverse passages 14 imparting a transverse strength through continuous bonds, it is possible to erect a building by using the method disclosed hereunder with reference to Fig.8 of the drawing.

By using flat panels 1 and corner panels la, the solid walls are erected by simply disposing the panels side by side and cementing them. Then, the apertures for the windows and doors are cut by using a saw. In the slits left by the saw, sheets 16 of metal or other material are inserted. Then, the iron fittings, duct means and other conduits are introduced into the free passages. Thai concrete is cast into the vertical tubes and vibrated to facilitate its penetration into the ".horizontal passages, in order to provide continuous horizontal bonds. When the concrete has set, the sheets are removed from 1 95 8 6 the slits and the panel material of the windows and doors is also removed, so that the necessary frame can be fitted in position and sealed according to the known methods.

Claims (8)

\95d66 WHAT I CLAIM IS

1. A building panel of light-weight material, adapted to receive a final sheathing on its major faces, which comprises parallel hollow passages fitted with cardboard tubes interconnected by transverse passages perpendicular to said tubes and extending throughout the panel width.

2. The building panel of claim 1, wherein said cardboard tubes are assembled side by side by means of interfitting apertures and bridge portions.

3. The building panel of claim 1, which comprises a block of synthetic foam in which parallel coplanar hollow cylinders are formed and provided with transverse passages, said cylinders being provided with said tubes in which aligned radial apertures are formed.

4. The building panel of claim 1, which comprises at least two blocks of moulded synthetic foam material disposed side by side and a plurality of tubes.

5. The building panel of claim 2, wherein each cardboard tube has formed along one side a row of aligned single apertures separated by bridge portions having an axial length corresponding substantially to the axial length of said single apertures, and along the diametrically opposite side another row of aligned apertures having an axial length of about three times the axial length of said bridge portions whereby every third single aperture constitutes a transverse passage registering with the central portion of the opposite triple-length aperture. O r: C' ✓ J L- u

6. A method of constructing buildings by using panels according to any one of claims 1 to 5, which comprises the steps of erecting solid walls by laying the building panels side by side, cutting spaces for doors and windows, inserting a sheet of metal or other suitable material into a slit resulting from the cutting steps, introducing iron fittings and the necessary conduits and supply lines into the empty passages, casting concrete into the vertical tubes, vibrating the concrete to cause same to penetrate into said horizontal transverse apertures, allowing the concrete to set, removing said sheets from said slits, removing the material corresponding to said doors and windows, and carrying out sheathing and finishing operations according to any known and suitable procedure.

7. A building panel substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.

8. A method of constructing buildings by using panels according to the invention substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.