FR2821101A1 - Wall facing panel spacer and fastening comprises asymmetrical U-section member that engages with another one of the same shape and reversed - Google Patents

Abstract

The spacer and fastening, made from metal or fibre-reinforced plastic, consists of an asymmetrical U-section member (1) with a base (2), side walls (3, 4) and in-turned edges (5, 6), shaped to engage with a second similar member when it is turned through 180 degrees. The bases and side walls of each member have interlocking projections (10) and recesses (9), and the bases also have reinforcing ribs (12).

Description

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LOCKING ELEMENT OF A SIDING INCLUDING
AN ASYMMETRIC PROFILE
The invention relates to mounting with blocking of facing of various walls, in particular of buildings, both inside and in contact with the outside atmosphere. Can be cited interior or exterior vertical faces of walls, horizontal or inclined roofs.

 The facings generally include elementary constituents in the form of plates, strips or the like, which are joined to each other. They can be made of various materials such as wood, metal, plastic material of the poly (vinyl chloride) type, plaster.

 Frequently, a thermal and / or acoustic insulating product is interposed between the wall and the facing. It is then necessary to ensure that the insulating product is kept in a constant position. Many systems for fixing insulating products are known. For example, patent publication FR-A1-2 557 901 describes a fastening system comprising fasteners consisting of elongated metal plates, one end of which is in the shape of a point to facilitate the insertion of the insulation. These fasteners are associated with plates or jumpers provided with fins on which can be fixed by clipping metal rails (profiles) forming the framework necessary for the subsequent laying of facing plates such as plasterboard. This generally very satisfactory and rapid fixing system does not, however, allow adjustment of the distance separating the rider from the surface to be insulated, once the fastener is fixed to said surface, or once again the rail clipped onto the rider. the latter is no longer easily accessible.

 Patent applications EP-A1-0 718 451, EP-A1-0 727 546 and FR-A1-2 754 002 propose to remedy this by means of an improved mounting and fixing system, of a coating comprising a frame intended to receive a facing and which allows an easy mounting of this frame and its maintenance at an adjustable distance from the surface to be coated, and which remains accessible after the installation of the frame for a possible adjustment of this distance or else for a

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 disassembly if necessary. In accordance with these publications, the facing consisting of plasterboard or equivalent is placed on the flat bottom of U-shaped metal profiles comprising return wings and which constitute the framework. The above-mentioned distance adjustment can be carried out substantially over an amplitude corresponding to the internal depth of the profiles. The facing is moreover fixed at the bottom and at the top by interlocking in rails fixed for example to the ground, respectively to the ceiling.

 The U-profiles known at the present time and suitable for being used as just indicated are not capable of fitting with themselves in any position. Such functionality would be of great interest.

nécessaires sont variables en fonction, bien entendu, de la configuration et des dimensions de la paroi à isoler. En effet les profilés en U ne sont disponibles sur le marché qu'en longueur ne correspondant quasiment jamais aux longueurs continues souhaitées. Pour abouter deux ou plusieurs sections de profil, on utilise notamment à l'heure actuelle comme pièce d'assemblage supplémentaire une éclisse de forme et dimensions particulières adaptées à la géométrie du profil. Il convient d'éviter dans la mesure du possible l'emploi d'une pièce supplémentaire, par le simple fait qu'elle nécessite une fabrication séparée. Firstly, it would allow joining, without using a separate assembly means, several sections of profile whose continuous lengths

necessary are variable depending, of course, on the configuration and dimensions of the wall to be insulated. In fact, the U-shaped profiles are only available on the market in length almost never corresponding to the desired continuous lengths. To abut two or more profile sections, use is currently in particular as an additional assembly piece of a particular shape and size adapted to the geometry of the profile. The use of an additional part should be avoided as far as possible, by the simple fact that it requires separate manufacture.

 Secondly, this possibility of nesting would guarantee optimal use of the profile sections, including those of shorter lengths.

 Thirdly, one of the consequences of this possibility of interlocking is that the two interlocked sections overlap over a greater or lesser length, a length which can be chosen as a function of the mechanical reinforcement that is desired. Indeed, such reinforcement results directly from the doubling of the profile over the interlocking length.

 Fourth, two sections of the profile generally fit together in a structure whose volumes, both inside and outside, are almost identical to those of a single section. It follows that the functionalities linked to these volumes, in particular the possibilities of sliding of the sections of sections with respect to other parts of the blocking systems of the facings, are preserved.

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 To this end, a self-nesting U-shaped profile has been developed for use in the aforementioned manner.

 The invention therefore relates to a blocking element of a facing comprising a substantially U-shaped profile consisting of a bottom extended on each of the two sides by a side wall extended by a return wing. According to the invention, this blocking element is distinguished by the fact that only one of the two lateral parts of the profile is shaped to allow the interlocking of a first and a second profile sections offset by 1800 relative to their longitudinal axis, by introducing said shaped lateral part of said first section into the volume defined by the non-shaped lateral part of said second section, and vice versa.

 The blocking element of the invention is particularly advantageous in that it makes it possible to join two sections of profile by fitting each into a third section, the length of which on the one hand, and the length of overlap with each of the two butted sections on the other hand, can be chosen according to the dimensions of the wall to be insulated and the mechanical reinforcement effect sought for the profile. This ensures optimal use of the profile, including its sections cut into smaller lengths.

 However, the advantage of the blocking element remains when only two sections are fitted, for example at the ends of the continuous lengths of profile, in particular in the areas of attachment to the rails of the floor and the ceiling.

 On the other hand, as indicated above, the volumes, both external and internal, of the profile are capable of being unchanged by fitting two sections in accordance with the invention, so that all of the functionalities linked to these volumes, in particular the possibilities of sliding, are preserved. In addition, as illustrated below, two nested sections can form a complete and perfect tube.

 The interlocking of two sections can be carried out so that the sections have complete freedom of translation and sliding relative to one another, or on the contrary with firm maintenance of their relative position, in the absence of any auxiliary fixing means. Any intermediate situation is achievable in the context of the invention, that is to say any situation in which two

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 sections in the nesting position can slide one over the other provided that a greater or lesser force is exerted for this purpose.

 Other objects of the invention consist in the use of the blocking element described above, in which -two sections of the profile are fitted; - three sections of the profile are nested two by two (in this case that of the three sections which is nested in each of the other two assumes the function of the splint known in the state of the art and mentioned previously: it allows in fact the abutment of said two other sections, possibly with more or less firm hold, or even fixing, without an additional part being necessary; the known non-conforming profile being called fur by specialists, it is specified in this respect that the shaped profile according to the invention is called fur sides); - 4n auxiliary means are used to fix two nested sections of the profile to each other.

The latter object is of interest when the interlocking of the two sections does not itself provide sufficient fixation or maintenance, and in particular when it is not incompatible with a free sliding of the sections relative to the 'other. Through holes can be provided in the walls of the two sections facing each other, and the fixing carried out by screw-nut or equivalent.

Other characteristics and advantages of the invention will appear in the description which follows of the single figure in the appendix, which is a sectional representation of two sections of substantially U-shaped section fitted according to the invention.

 With reference to this FIG. 1, a blocking element of a facing consisting of plasterboards comprises a profile 1 substantially in a U shape. This profile is metallic or made of plastic possibly reinforced by fillers and / or fibers such as fibers of glass. In this case, it consists of a galvanized steel sheet 0.6 mm thick.

 The profile 1 consists of a substantially flat bottom 2 extended on both sides by a side wall 3,4 each being perpendicular to the bottom 2. The side walls 2,3 are themselves extended at right angles by return wings 5 and 6.

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A first and a second section 7, 8 of the profile 1 are fitted one into the other in an angular offset position of 1800 relative to their longitudinal axis, perpendicular to the plane of the figure.

 A single 2.3 of the two lateral parts 2.3; 2.4 of the first section 7 is shaped to be able to be introduced into the volume defined by the non-shaped side part 2.4 of the second section 8.

 Conversely, only one 2.3 of the two lateral parts 2.3; 2.4 of the second section 8 is shaped so that it can be introduced into the volume defined by the non-shaped side part 2.4 of the first section 7.

 According to an advantageous characteristic of the invention, the shaped lateral part 2,3 of each of the first and second sections 7,8 comprises, on the outside of the section 1, a concavity 9 intended to receive an additional thickness 10 presented by the wing of return 6 of the other of said first and second sections 8,7 during their nesting in one another, so that this nesting can be done with blocking and / or snap-fastening. The configuration of the profile 1 shown as well as the material which constitutes it have been chosen, in this respect so that the interlocking of sections 7 and 8 is accompanied by a snap-fastening by a slight elastic deformation of the sheet in the region side walls 4 and return wings 6. Once the sections 7 and 8 are fitted together, they are held firmly against each other, so that additional fixing is unnecessary.

 The extra thickness 10 formed at the end of the return wings 6 and participating in the snap-fastening consists of a fold of the material constituting the profile 1, that is to say by a fold of the sheet, particularly simple to obtain by an industry process.

 According to other preferred embodiments of the invention, the side walls 3, 4 of the profile 1 have at least one longitudinal reinforcing groove 11 at a height at a fixed height so that in the nested position of a first and second sections 7, 8 of the profile 1, the groove 11 of one of the side walls 3 of the first section 7 fits into the groove 11 of the other of the side walls 4 of the second section 8 , and vice versa (the groove 11 therefore thus contributes both to the rigidity of the assembly of the two sections 7 and 8, and to the maintenance of the latter by one another);

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 the bottom 2 of the profile 1 has at least one longitudinal reinforcing groove 12.

 Thus, the invention provides it with a profile that is perfectly suited for blocking plasterboard or other facing covering thermal and acoustic insulation of walls, such as mineral wool mattresses.

 This profile is particularly simple to manufacture according to economically advantageous industrial processes, whether it is to shape metal sheets or plastic materials by extrusion, injection, etc. Sections can be easily assembled into any length by simple handling, without the use of any tool.

Claims (9)

 CLAIMS 1. Locking element for a facing comprising a substantially U-shaped profile (1) consisting of a bottom (2) extended on each of the two sides by a side wall (3,4) extended by a return wing (5 , 6), characterized in that only one (2,3) of the two lateral parts of said profile (1) is shaped to allow the fitting of first and second sections (7,8) of said profile ( 1) in angular offset of 1800 paar relative to their longitudinal axis, by introduction of said shaped lateral part (2,3) of said first section (7) into the volume defined by the non-shaped lateral part (2,4) of said second section (8), and vice versa.  2. Locking element according to claim 1, characterized in that said shaped lateral part (2,3) of each of said first and second sections (7,8) comprises, on the outside of the profile (1), a concavity (9 ) intended to receive an additional thickness (10) presented by the return wing (6) of the other of said first and second sections (8,7), when they fit into one another, so that this fitting can be done with blocking and / or snap-fastening.  3. Locking element according to claim 2, characterized in that said additional thickness (10) is constituted by a fold of the material constituting the profile (1).  4. Locking element according to one of the preceding claims, characterized in that the side walls (3,4) of the profile (1) have at least one longitudinal reinforcing groove (11) at a height fixed so that in the nested position of a first and a second section (7,8) of the profile (1), the groove (11) of one of the side walls (3) of the first section (7) fits in the groove (11) of the other of the side walls (4) of the second section (8), and vice versa.  5. Locking element according to one of the preceding claims, characterized in that the bottom (2) of the profile (1) has at least one longitudinal reinforcing groove (12).  6. Locking element according to one of the preceding claims, characterized in that the profile (1) is metallic or made of plastic possibly reinforced by fillers and / or fibers such as glass fibers.  7. Use of a locking element according to one of claims 1 to 6, in which two sections of the profile (1) are fitted. <Desc / Clms Page number 8>  8. Use of a locking element according to one of claims 1 to 6, in which three sections of the profile (1) are fitted two by two.  9. Use according to claim 7 or 8, in which an auxiliary means is used to fix one to the other two nested sections of the profile (1).