WO2007039654A1 - Reinforced insulation panel for construction - Google Patents

Abstract

The invention relates to a reinforced insulation panel for construction, of the type comprising a quadrangular or rectangular body (1) of expanded polystyrene, extruded polyethylene or another insulating material. The invention is characterised in that it comprises a plurality of transverse wire crimps (2), the projecting ends of which are bent at a right angle parallel to the surface of both sides of the panel, such as to extend in the same or opposing directions on either side. The side that is intended to receive exterior cladding can be equipped with a mesh of mineral fibre or carbon fibre, which is used to prevent possible cracking that could be caused by the crimps in the contact material, i.e. the finish cladding or a cement reinforcement for joining to same. The crimps provide a connection between the support and the cladding that is applied, such as to prevent unwanted movement and securing defects that arise in buildings.

Description

 Reinforced insulation panel for construction. -

The present invention relates to an insulating panel for construction, specifically for the external thermoacoustic insulation of the walls, roofs and floors, which is reinforced by a plurality of transverse wires conveniently bent on both sides, which ensures the joint between the support and the coating applied on top, thus forming an integral insulating "sandwich".

In this way, the functional thermal and acoustic insulation performance of these panels and plates, derived from their own nature, that is to say the constituent material thereof, generally expanded polystyrene, extruded polystyrene, rock wool and similar products, is maintained, avoiding In addition, the unwanted displacements and fixing defects due to external factors as frequent as thermal expansion and structural settlements that take place in buildings.

The invention therefore finds direct application in the field of construction, within what is the insulation and protection of buildings, and, in particular, in the exterior insulation of the walls, which is a very common practice today , especially in rehabilitation. STATE OF THE TECHNIQUE. -

The use of panels or plates of insulating material in the construction has been known for a long time, using plates of different dimensions of expanded polystyrene (known colloquially as "white cork" or "polyspan") or rigid extruded polystyrene foam, which by example they are located in the classic air chamber of a wall, between the outer and inner layers of a roof enclosure, etc.

These panels usually have their lintel-shaped edges, according to two complementary steps, in order to achieve a tongue and groove coupling between adjacent plates, which improves the tightness and consequently the performance, especially in terms of thermal and acoustic insulation.

In any case, regardless of whether the panels are used coupled or insulated, it is a frequent fact that after a time of their installation they move or move in greater or lesser average with respect to their original position, producing cracks in walls and roofs of the buildings, as well as an impairment of its insulating function. This may be due for example, among other factors, to the different coefficient of thermal expansion of polystyrene and equivalent materials with respect to a brick wall, which generates dilations of both types of material.

In addition, in the particular application of exterior insulation, once the panels have been placed on the facades, The surface finish can only be done based on thin-layer plastic coatings, synthetic plaster type, which offer little impact resistance, with the consequent risk of subsequent cracking.

These problems, as far as is known, have not been adequately solved to date, perhaps because they usually appear after a while of the execution of the works and are interpreted as their normal deterioration. Be that as it may, the case is that the insulating panels are still placed as they are received and the referred risks to internal movements and to the bad fixation of the coatings are still latent.

Many patents related to the fixing or installation of honeycombs or insulating plates in construction are known. Thus, doing an indicative search in the OEPMPAT database of the Spanish Patent and Trademark Office, which includes, among others, all patents and utility models with effects Spain published between the last twenty-five and thirty years, documents have been found relating to different mechanisms for crimping or fixing thermoacoustic panels for cladding, or for fixing or anchoring means to the works of such panels. However, there is very little documentation on inventions whose object is insulation panels that incorporate their own means for fixing them to the works and, those that have been found, are different from those of the presented invention, apart from that they have another purpose.

This is the case, for example, of the utility models mentioned below, related to a panel or thermoacoustic insulation plate incorporating other means of fixing to the works, other than the wire crimps of the present invention: One is the ES1052607U model "Interior insulation plate for walls, floors and roofs", which is characterized by incorporating a plurality of lugs on its face intended for fixing to the corresponding support surface, but they do not cross the plate completely and are presented only on one side of the plate, in addition its purpose is to act as spacers creating between the plate and the surface support a narrow chamber acting as a barrier element against condensation. Another case occurs in the invention ES0171174U "Facade panel for building construction", where the connecting elements between the outer layers are constituted by stainless steel wires whose bending shape is different from those of the present invention, which cross the inner insulation plate and are located on the one hand, in the upper part of the panel and ensuring the suspension of the layer in its plane and, on the other side, in the lower part to allow vertical and horizontal displacements of said layer in your plane

In short, the problem of instability of cladding panels once installed, with their unwanted consequences, still does not have an adequate response in the market.

THE INVENTION. -

The insulating panel that the invention proposes, if it satisfactorily solves the problem described above, so that, maintaining the nature and configuration of a conventional panel, in terms of being constituted by a quadrangular or rectangular body of different dimensions, based on expanded polystyrene, extruded polyethylene or any other insulating material, such as polyurethane, glass wool or agglomerated or natural cork , with optional perimeter lintel for tongue and groove coupling between plates, it is reinforced with a series of conveniently arranged wires that allow it to be sufficiently fixed to the work walls and to the outer cladding, thus forming a single body with integrated cladding impossible to achieve with The usual techniques.

More specifically, the recommended panel focuses its features on incorporating a plurality of transverse wire crimps, with the protruding ends bent at right angles, parallel to the surface of both sides of the panel and following one or more directions for each side. Normally, the panel is obtained with the bends crimped in the same direction on each side, but it is common that during manipulation and subsequent use, the crimps rotate on their transverse axis until defining different directions, which even improves their panel fixing function About the work material.

In any case, said wire crimps that pass through each panel are obtained bent in the same way, either all U-shaped, if they are presented folded in the same direction on each side of the panel, or all in the form of S, if bending is reversed, what which depends on the process in which this mechanical transformation is performed.

Whether U-bent or S-shaped, wire crimps are the ones that fix each panel to both the mortar or building cement and the exterior cladding, making it consolidated in the construction walls, without experiencing the unwanted displacements once installed and allowing a finish with rigid coatings, such as stone, ceramic or monolayer coatings or similar, without risk in any case of detachment or subsequent cracking. This is the great technical advantage provided by the devised cover panel, with a stabilization system based on wire crimpers as simple as it is effective.

According to the needs of the works, the panel can be superimposed on one of its sides, the one destined to the outer lining, a mesh of mineral fiber or carbon fiber, in order to avoid possible cracks caused by the crimps in the contact material , which may be the finish coating itself or a cementitious reinforcement for joining it.

Obviously, the thickness of the sheet of insulating material may vary at will, according to the environmental conditions of the work in progress and the coefficient of insulation pursued, as well as the characteristics of the metallic wire used as reinforcement, which will vary depending on the panel size, without any of this affecting the essentiality of the invention. To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. In an illustrative and non-limiting manner, the following has been represented:

Figure 1 shows a perspective view of a panel (1), where the uniform distribution of the wires (2) on the surface of the polystyrene body or insulating material is appreciated.

Figure 2 shows two sectional views of the panel profile (1), each of the views is sectioned in an area where three transverse wires (2) are already bent. In the first section the ends of the transverse wires are presented folded on both sides of the panel in the same direction, in a U-shape. In the second sectioned view the ends appear bent on both sides of the panel in the opposite direction, in the form of S .

Finally, figures 3, 4 and 5 show a diagram of the three variants in which the panel can be applied and which are described later: the sandwich coating (figure 3), the wall cladding (figure 4) and the integrated cladding (figure 5), in all of which the panel is presented with the option of reinforcement mesh on the side intended for the outer cladding. EXECUTION MODE.-

In view of the aforementioned figures, it can be seen how the panel of the invention, like any conventional plate of this type, is constituted from a laminated body (1) of expanded polystyrene or other material with similar characteristics, of quadrangular or rectangular contour, and of different dimensions, of substantially constant thickness, and with the possibility of presenting on its edges stepped and complementary recesses to allow the tongue and groove and coplanar coupling between panels, the thickness and density of the constituent material of the panel being adequate to obtain the level of persecuted isolation.

The novelty contributed lies, as already mentioned, in that this panel (1) is reinforced with a plurality of wires (2) of different thickness and length, depending on its thickness, which cross it perpendicularly to its surface, and which protruding on each of its two faces are crimped to the panel when bent at a right angle parallel to them, which makes them act as hooks for fixing the work material.

In addition, as an optional variant, the panel can be used accompanied by a mesh of mineral fiber or carbon fiber on the side destined to the outer covering, as a reinforcement reinforcement for the contact material in those works that require it.

As a preferred embodiment of the product, it is based on expanded polystyrene panels (white cork) Prefabricated of different thicknesses, which are cut to fit your application.

The process of implanting and forming the wire crimps (2) in the insulating honeycombs (1) requires a special bending machine.

It is that each polystyrene panel is traversed transversely by a series of cut wires with a length greater than the thickness of the panel, and that these wires are not concentrated in a certain area on the surface of the panel, but placed with a uniform distribution so that they reinforce in the best way the set.

For the operation of bending the wires, the panel with the wires is placed on the rail or conveyor belt of the bending machine, where it travels until it reaches a roller, which is located on the rail at a distance slightly greater than the of the thickness of the panel, so that when passing through this area, the protruding ends of the wires are bent at a right angle, parallel to their surface. Then, the position of the panel is reversed and the operation is repeated, bending in the same way the wires of the opposite side.

Whether the wires are crimped in the U-shaped panel, with the ends in the same direction on both sides, or in the form of S, in the reverse direction, will depend on the direction in which the panel travels through the lane towards the roller in the second phase of bending is, in turn, the same or the inverse of the first phase. The rail or conveyor belt of the bending machine has the appropriate shape so that the successive insulating plates are displaced held by ends, without the protruding wires at the bottom can hinder the operation.

Once the invention panels are obtained, their application in the works basically gives rise to three variants, which respond to the drawings of the figures, 3, 4 and 5, and although they are similar and fulfill the same function, they have particularities for needs construction specific.

The variant of figure 3, is known as "sandwich" coating, where it is incorporated on both sides of the panel (1), with the cross-links (2), the fiberglass mesh (3) and a cementitious type coating (4) .

The integrated cladding variant is shown in Figure 4. One side of the panel (1) is directly connected, thanks to the crimps (2), to a concrete layer (5). The other side of the panel has fiberglass mesh (3) with cement reinforcement (4) and a final formwork layer (6), made of wood or metal.

Figure 5 shows the option of wall cladding, composed of the panel (1) with the links (2), where on one side it presents a glass mesh (3) with a finishing coating (7) that can be mortar, of brick (face view), stone, etc. On the other side of the panel the links (2) join the panel to a layer of glue cement and polystyrene (8) and finally there is the closing wall (9).

Once the invention has been described, with its components referenced to the drawings with sufficient clarity to carry out its production and operation, it is declared as new and of its own invention, with the exception that its details, shape, size, materials and compositions , manufacturing procedures and applications, may be modified with respect to what is described and represented herein, always within the unaltered essentiality that is summarized in the following:

Claims

1. Reinforced insulation panel for construction, of the type consisting of a quadrangular or rectangular body (1) of different dimensions, of expanded polystyrene, extruded polyethylene or any other insulating material, such as polyurethane, glass wool or agglomerated cork or natural, and with the possibility of presenting staggered recesses on the perimeter edges for tongue and groove coupling between panels, characterized by incorporating a plurality of transverse wire crimps (2) with the protruding ends bent at right angles, parallel to the surface of both sides of the panel and following one or several directions on each side. 2. Reinforced insulation panel for construction, according to the first claim, characterized in that the transverse wire crimps are folded on both sides of the panel in the same direction, in the form of OR. 3. Reinforced insulation panel for construction, according to the first claim, characterized in that the transverse wire crimps are folded on both sides of the panel in the opposite direction, in the form of S. 4. Reinforced insulation panel for construction, according to previous claims, characterized by having superimposed on one of its sides, the one destined to the outer covering, a mesh of mineral fiber or carbon fiber.