ES2637064T3 - Wall element - Google Patents

Abstract

A wall element (1) comprising two outer layers (2) extending at least substantially parallel to each other and an intermediate layer (3) connected thereto, whose wall element (1) can move between a folded position, where the outer layers (2) are facing each other, and an unfolded position, where the outer layers (2) are separated from each other, said intermediate layer (3) comprising first parts (6), which are connected to an outer layer respective (2), and second parts (7), which extend between said first parts, characterized in that the intermediate layer (3) has a rectangular cross section in the deployed position, where the first parts (6) extend parallel to the outer layers (2) in the folded and unfolded positions, where the second parts (7) extend perpendicularly to the first parts (6) in the deployed position, where the second parts (7) extend parallel to the The first parts (6) in the folded position, and where each second part (7) is pivotally connected, at least, to one of the first parts (6), where the intermediate layer (3) is formed by an elementary piece, where each second part (97) is pivotally connected to both first parts (6), where each second part (7) is pivotally connected to one of the first parts (6) at along two separate fold lines (21, 22; 23, 25), and wherein each second part (7) is pivotally connected to the other first part (6) along a folding line (23, 26).

Description

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Wall element

The present invention refers to a wall element comprising two outer layers that extend at least substantially parallel to each other and an intermediate layer connected thereto, whose wall element can move between a folded position, where the outer layers are facing each other. sf, and an unfolded position, where the outer layers are separated from each other, said intermediate layer comprising first parts, which are connected to a respective outer layer, and second parts, which extend between said first parts.

An element is known from the specification of Australian patent No. AU 511833 which describes, for example, an insulating panel comprising two outer layers and intermediate bands connected thereto, whose outer layers can move between a first position, where the outer layers are closely juxtaposed, and a second position, where said layers are separated from each other. A drawback of the known element is that it does not have sufficient structural rigidity to be used as a solid wall element. An additional drawback is the fact that the wall part may accidentally collapse from the second position to the first position.

Document DE 23 53 927 describes a wall element according to the preamble of claim 1.

An objective of the invention is to overcome the drawbacks of the prior art. In particular, an objective of the invention is to provide a wall element that has a very high tensile and tensile strength and that can be folded or deployed in a simple and / or effective manner, without this being able to occur by accident.

To achieve that objective, a wall element of the type described in the introduction is characterized, according to the invention, because the intermediate layer has a rectangular cross-section in the deployed position, where the first parts extend parallel to the outer layers in the folded and unfolded positions, where the second parts extend perpendicularly to the first parts in the unfolded position, where the second parts extend parallel to the first parts in the folded position, and where each second part is connected so pivoting, at least, to one of the first parts, wherein the intermediate layer (3) is formed from an elementary piece, where each second part 97) is pivotally connected to both first parts (6), where each second part (7) is pivotally connected to one of the first parts (6) along two separate folding lines (21, 22; 23, 25), and where ca The second part (7) is pivotally connected to the other first part (6) along a folding line (23, 26). As a result, a standard element can be used in a simple and / or effective way, for example, to form a wall, for each desired wall thickness, where the maximum thickness is the sum of the length of the second parts and the thickness of the first parts and the outer layers. In the folded position, the wall element occupies less space, so that the wall elements can be stored and / or transported efficiently. This means cost savings and reduces the environmental impact. In the deployed position, the wall element can preferably be fixed by means of an accessory inserted between the first and second parts, in particular an accessory inserted in the form of a piece of insulating material, such as rock wool. In another preferred embodiment, a first part and / or a second part comprises a flange that can be folded outwards, whose function is to fix the wall element in the deployed position. As a result, separate fixing means are not needed and, therefore, it is not necessary to transport them separately, which means a greater reduction in transport and storage costs. By fixing the wall element in a position between the folded and unfolded position or in said folded position or said unfolded position, the construction element cannot be accidentally folded, for example, as a result of a force exerted thereon. This is important, for example, if several elements are used to form a wall, in which the wall elements are interconnected, since the wall elements can be connected only if said wall elements are in the same position.

Preferably, the outer layers are staggered with respect to the first parts of the wall element, so that the outer layers protrude with respect to the first parts of the wall element at a short end thereof, such that they form a mounting opening, and so that the first parts protrude with respect to the outer layers at the other short end of the wall element, such that they form a mounting boss. To connect adjacent wall elements between them, the mounting projection of one element is inserted into the mounting opening of the other wall element.

It should be noted that the wall element is not used exclusively to form a wall, since this element is also suitable for use as a ceiling element and / or insulation element.

In a preferred embodiment of the wall element according to the invention, at least one of the second parts is provided with a folding line to form a wing that can bend inwardly, whose function is to fix the wall element in the deployed position.

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In another preferred embodiment of a wall element according to the invention, at least one of said first parts comprises two separate parts.

In another preferred embodiment of a wall element according to the invention, the outer layers are made of a material selected from the group consisting of wood, plaster, metal and plastic. Preferably, the intermediate layer is made of a cellulosic material such as paper or cardboard.

The invention is detailed below with reference to the figures illustrated in a drawing, in which:

- Figure 1 is a perspective view of two interconnected wall elements;

- Figures 2 and 3 are perspective views of a wall element of Figure 4 in an unfolded position and in a folded position respectively;

- Figures 4 and 5 are side views of the wall element of Figures 2 and 3 in an unfolded position and in a folded position respectively;

- Figures 6, 7 and 8 are perspective views of a separate outer layer (Figure 6) and a separate intermediate layer (Figures 7 and 8), respectively, of the wall element of Figures 2 and 3;

- Figures 9 and 10 correspond to Figures 4 and 5, but, in this case, related to a wall element according to the invention;

- Figures 11 and 12 refer to a wall element according to a preferred variant, which shows a side view of the wall element in an unfolded position (figure 11) thereof and a plan view of an elementary piece of an intermediate layer separate used with it, respectively;

- Figures 13 and 14 correspond to Figures 11 and 12, in this case, related to another preferred variant;

- Figures 15 and 16 correspond to Figures 13 and 14, in this case, related even to another preferred variant.

As indicated, Figure 1 is a perspective view of two interconnected identical wall elements 1.

Each wall element 1 is formed by two parallel outer layers 2 of plaster and an intermediate layer 3 comprising several layers of corrugated cardboard, which is glued to said outer layers. The outer layers 2 are staggered with respect to the intermediate layer 3 of the wall element 1. As a result, the outer layers 2 protrude with respect to the intermediate layer 3 at a short end of the wall element 1, such that they form an opening of assembly 4, while the intermediate layer 3 protrudes with respect to the outer layers 2 at the other short end of the wall element 1, such that it forms a mounting projection 5. As for figure 1, the mounting projection 5 of a wall element 1 is inserted into the mounting opening 4 of the other wall element 1 to connect adjacent wall elements 1 to each other.

The wall element 1 can move between a folded position, where the outer layers 2 are close to each other (figure 3), and an unfolded position, where the outer layers 2 are separated from each other (figure 2). Referring to Figures 2 and 3, the intermediate layer 3 comprises first parts 6, which are glued to a respective outer layer 2, and second parts 7, which extend between the first parts 6. As shown in the drawing, the First parts 6 extend parallel to the outer layers 2 in the folded position (figure 5) and in the unfolded position (figure 4). The second parts 7 extend, however, perpendicular to the first parts 6 in the deployed position (figure 4) and parallel to the first parts 6 in the folded position (figure 5). Each of the second parts 7 is pivotally connected to at least one of the first parts 6.

Also, with reference to Figures 4 and 5, the intermediate layer 3 comprises two panels 8 and 9, each formed from an elementary piece. In the deployed position (figure 4), each panel 8 and 9 has a U-shaped cross section, where the first parts 6 form the bases of the U-shaped cross sections and where the second parts 7 form the legs of the U-shaped cross sections. The second parts 7 facing each of the panels 8 and 9 are connected.

Figure 6 refers to a separate outer layer 2 of plaster. Figure 7 refers to an unfolded panel 8 and 9 of a few layers of corrugated cardboard, each formed by a flat sublayer 10 and a corrugated sublayer 11, which are glued together. As shown in Figure 7, a second part 7 'of each panel 8 and 9 is pivotally connected to the first part 6 thereof along two separate fold lines 12 and 13 in panel 8 and 9. In contrast, the other second part 7 '' of each panel 8 and 9 is pivotally connected to the first part 6 thereof along a fold line 14 in panel 8 and 9.

Figures 8, 9 and 10 refer to the preferred variant according to the invention, where the intermediate layer 3 is made of an elementary piece. In the unfolded position (figure 9) the second parts 7 'and 7' 'of the elementary piece facing each other are connected by one side of the wall element 1. The second part 7' of the same one facing inwards is in a manner pivot connected to the first part 6 'along two separate fold lines 15 and 16 in the elementary piece. The second part 7 '' thereof that faces outwards is pivotally connected to the other first part 6 '' along a fold line 17 in the elementary part.

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The second part 7 '' 'of the elementary piece on the other side of the wall element (1) is pivotally connected to the first parts 6' and 6 '' along a folding line 18 (part 6 ' ) and two folding lines 19 and 20 (part 6 '') in the elementary piece (figure 8).

Figures 11 and 12 refer to a preferred variant of the wall element 1, where the corresponding parts are indicated with the same numbers. The wall element 1 comprises outer layers 2 and an intermediate layer 3, where the outer layers 2 are staggered with respect to the intermediate layer 3 also in this variant. The intermediate layer 3 comprises an elementary piece with the first parts 6 and the second parts 7, whose functions correspond to those of the previous preferred variants. Also in this case the elementary piece is provided with two pairs of separate folding lines (21, 22; 24, 25) and two individual folding lines (23, 26), wherein said pairs of folding lines (21, 22 ; 24 and 25) are diagonally opposite each other and where said individual folding lines (23, 26) are also diagonally opposite each other. As a result, the first parts 6 and the second parts 7 can pivot optimally between sf , without the presence of overlapping parts in the deployed position of the wall element 1, as is the case in Figures 4 and 9. The first upper part 6 of the elementary piece is provided, for that purpose, with a cut, such and As shown. Said cut, therefore, no longer exerts any function once the outer layers 2 are mounted. At least one of the second parts 7 comprises a flange 27 that can be folded outwards and whose function is to fix the wall element 2 in the deployed position thereof. An inserted rock wool accessory can be provided before or after transport.

Figures 13 and 14 refer to another preferred variant and correspond to Figures 11 and 12, with corresponding parts indicated with the same numbers. The fourth preferred variant shown here is identical to the third preferred variant shown in Figures 11 and 12, with the difference that this variant does not comprise a flange 27 that can be folded outward from at least one of the second parts 27. Instead, a folding line 28 is provided in at least one of the second parts 7, so that a wing 29 is formed which can be folded inward in the second part 7 in question to fix the wall element 2 in the deployed position. It should be noted that the folding line 28 must not necessarily be placed in the center of the second part 7 in question.

Figures 15 and 16 refer to another preferred variant and correspond to Figures 13 and 14, with corresponding parts indicated with the same numbers. The fifth preferred variant shown here is identical to the fourth preferred variant shown in Figures 13 and 14, with the difference that the cut in the first upper part 6 is much larger. The first upper part 6, in this case, is actually formed by separate parts 6 'and 6' 'thereof.

Claims (6)

5 10 fifteen twenty 25 30 35 1. A wall element (1) comprising two outer layers (2) extending at least substantially parallel to each other and an intermediate layer (3) connected thereto, whose wall element (1) can move between a position folded, where the outer layers (2) are facing each other, and an unfolded position, where the outer layers (2) are separated from each other, said intermediate layer (3) comprising first parts (6), which are connected to a respective outer layer (2), and second parts (7), which extend between said first parts, characterized in that the intermediate layer (3) has a rectangular cross section in the deployed position, where the first parts (6) they extend parallel to the outer layers (2) in the folded and unfolded positions, where the second parts (7) extend perpendicularly to the first parts (6) in the unfolded position, where the second parts (7) extend parallel to the prim they were parts (6) in the folded position, and where each second part (7) is pivotally connected, at least, to one of the first parts (6), where the intermediate layer (3) is formed by an elementary piece, where each second part (97) is pivotally connected to both first parts (6), where each second part (7) is pivotally connected to one of the first parts (6) along of two separate folding lines (21, 22; 23, 25), and where each second part (7) is pivotally connected to the other first part (6) along a folding line (23, 26). 2. A wall element (1) according to claim 1, wherein at least one of the second parts (7) comprises a flange (27) that can be folded outward, whose function is to fix the wall element (1) in the deployed position. 3. A wall element (1) according to claim 1 or 2, wherein at least one of the second parts (7) is provided with a folding line (28) to form a wing (29) that can bend inwards , whose function is to fix the wall element (1) in the deployed position. 4. A wall element (1) according to claim 1, 2 or 3, wherein at least one of said first parts (6) comprises two separate parts (6 '. 6' ') 5. A wall element (1) according to any of the preceding claims 1-4, wherein the outer layers (2) are made of a material selected from the group consisting of wood, plaster, metal and plastic. 6. A wall element (1) according to any of the preceding claims 1-5, wherein the intermediate layer (3) is made of a cellulosic material such as paper or cardboard.