FR3002256A1 - FIXING KIT OF A WALL LINING, SUITABLE FOR MAINTAINING PIV PANELS AND ASSOCIATED SUPPORT PROFILES - Google Patents

Abstract

The wall lining is made using a fastening kit which includes a support profile (10) for the integration of a layer of typically PIV type insulating panels, at a U or H section of the profile. (10). An anchor rail (15) integral with the front branch (10b) of this profile serves to fix the rear end of one or more spacer devices (30, 40) with a degree of freedom in translation parallel to the longitudinal axis (A) of the profile (10). A connection on the wall (P1) can be made via a rear branch (10a) of the profile which has a bearing surface that can be fixed directly to the wall. The profile (10) makes it possible to take up the support forces transmitted from an outer facing (8) on each of the devices (20). The support profile can be made of a plastic part of low thermal conductivity.

Description

The present invention relates, in the field of building, to the thermal insulation installations used for the wall lining. The invention relates more particularly to a fixing kit for wall lining for incorporating an insulating layer formed of insulating elementary panels, preferably of the PIV type (Vacuum Insulation Panel), and facilitating the installation of an external cladding. typically rigid and planar. The invention also relates to a use of the fixing kit and a support profile for PIV type insulating panels. The elementary panels of the PIV type comprise, in a manner known per se, an insulating porous core material (for example) with an open-cell microcellular or nanocellular structure maintained under vacuum by a barrier envelope that guarantees gastightness. The barrier envelope is flexible and generally incorporates a heat-sealable film. These panels form plates of substantially constant thickness and have large sizes, for example 600 mm wide and 1200 mm long (other widths, for example 100, 300 mm, 400, 500 up to 1200 mm being of course available, the length generally varying between 500 and 2000 mm). The size of these panels would therefore be suitable for covering building walls for thermal insulation purposes. In addition, the thermal performance of these elementary panels leads to thicknesses that can be reduced to minimize the bulk of the thermal insulation system, the thickness of a panel being less than 60 mm, and preferably less than 35 mm. mm.

In the field, it is described as super heat insulators materials having, at ambient temperature, a thermal conductivity level of less than 25 mVV m-1 K-1. The PIV panels have a thermal conductivity of less than 7 mVV m-1 K1, and more preferably less than 5 mVV m-1 K-1. In the elementary panels of the PIV type, all the gases present are removed from the superinsulating porous material before being vacuum-packed within a flexible barrier envelope generally constituted (in a manner known per se) of a heat-sealable film which can be metallized which also prevents the formation of thermal bridges at the slices. The use of such elementary panels to achieve a thermal insulation installation is however delicate because the barrier envelope (very thin) is fragile. This type of panel does not tolerate compression or bending forces that are likely to lengthen the envelope locally and degrade its gas barrier properties. The relatively large size of the panels and their very low thermal conductivity are very important thermal insulation performance advantages which can, however, be considerably reduced if the spacing between two adjacent panels is too great (problematic thermal bridges) and / or air can circulate at the junctions (associated problem of airtightness of thermal insulation of building walls). Even minimal drilling of the barrier envelope causes the loss of the vacuum inside the envelope, leading to a very significant reduction in the thermal performance of the panels, the thermal conductivity then being able to increase by a factor of three or four or even beyond if water vapor also enters the envelope (on the order of 20 mVV m-1 K1 or more instead of 5-7 mVV m-1 K1 for an intact vacuum insulation board ). To facilitate the installation of the panels by limiting the risks of degradation and minimizing thermal bridges, it has been proposed in document US 2006/0265988 A1 to use a support profile of complex shape, made of metal or rigid plastic, which has a H section with a flat intermediate portion adapted to be interposed between two rows of insulating panels. This support profile comprises, perpendicularly to the flat intermediate portion, a bearing surface adapted to be fixed against the wall. The H section makes it possible to block the vertical displacements of the PIV type panels. The spacing between the outer face and the panel layer is obtained by a transition portion which extends, at the end opposite the bearing face, by a holding element which extends outwards in the junction between two superposed facing elements. The outer face may be mounted in abutment against end faces of the transition portion. The assembly described in US 2006/0265988 A1 has however the following drawbacks: - the profile used is complex and does not offer mounting flexibility (not possible for example to adjust the spacing between the outer face and the building wall ); - It is necessary to use specific facing elements that can engage against the holding element in a superimposed mounting (unsuitable system for standard type facing plates having manufacturing tolerances). It is also known from document FR 2849461, a kit for mounting and fixing a frame with an external facing, for maintaining and adjusting the distance to the wall of the external wall facing profiles. These profiles, typically metal, constitute the frame and has a U-shaped section with return wings. Such profiles are commonly called furs by the skilled person. The kit used to adjust the spacing comprises a plurality of spacer devices and has: - a spacer part consisting of a threaded rod ending in a wall connecting plate; and - a fur holding member, which has on the one hand a hole provided with a thread for engaging on the stem of the brace piece, and on the other hand a fixing portion with slots clipping to cooperate with the fur return wings.

Adjustment of the frame spacing is permitted by adjusting the length of the bracing device. The siding support furs are traditionally arranged vertically, although it is rare (for example, see Technical Opinion 9 / 03-759 of the Scientific and Technical Center for Building Construction) that horizontally disposed furs, particularly in two for wall heights between 2.40 and 6 m. This makes it possible to use a common plasterboard facing. However, a disadvantage of the assembly method described in FR 2849461 is that it is unsuitable for the use of PIV type panels, this document is only intended to isolate with a filling material such as mineral wool which has not no insulation performance comparable to a PIV type panel. There is therefore a need for a mounting and fastening kit which makes it possible to efficiently and easily integrate elementary panels, in particular of the PIV type, in particular for large-area contruction applications in a building, with flexibility and facilitating the task of the operator. The present invention is intended to overcome all or part of the aforementioned drawbacks.

For this purpose, it is proposed according to the invention a mounting kit for maintaining profiles at a given distance from a substrate, in particular a wall to be doubled, the mounting kit comprising: - a spacer device mobile device having a first axial end provided with a fixing member and a second axial end provided with a holding member, the movable bracing device comprising a bracing element which extends between the fixing member and the holding element; and - a support profile adapted to support the mobile bracing device, the support profile being elongate along a longitudinal axis and intended to be mounted parallel to a plane of the substrate, this support profile comprising; a section in U, and preferably in H, of which a flat intermediate portion forms the bottom of at least one groove which is adapted to maintain at least one insulating panel such as a PIV panel substantially parallel to the plane of the substrate in the mounted state of the support profile; and - means for fixing and guiding the mobile spacer device (guiding out of said groove), intended to ensure, after mounting the mobile bracing device, a translational movement of the movable bracing device parallel to the axis longitudinal. Thus, the insulating panels, for example PIV type, can be maintained in front of the wall to be insulated by means of support means which are entirely separate from the panels, so that the insulating material remains perfectly intact during assembly and when stresses are exerted on the external facing, while bringing together as much as possible the adjacent PIV panels (the insulating layer is then essentially defined by the PIV panels, the intercalated spaces being negligible). It is understood that the load to be applied to the panels can be advantageously reduced, the settings of the distance between the spacing devices are easy. Thanks to these arrangements, elementary panels based on vacuum super insulated standard type (with a fragile barrier envelope) can be implemented without embedded protection, simply by fixing the panels on support profiles that form the primary frame . By using a primary framework provided with such support profiles, a time saving for assembly and a cost reduction associated with the use of standard manufacturing panels are achieved.

In various embodiments of the mounting and fastening kit according to the invention, one or more of the following arrangements may also be used: the fixing and guiding means comprise a single base substantially the same length as the length of the support profile; the fixing and guiding means comprise a slit narrower than the groove, the fixing member comprising a flange and a male connection element protruding from the flange and intended to engage in the slot (thus the device of FIG. bracing can be fixed in the manner of a clip in the slot which is narrow here to minimize the size of the fastener of the bracing device); the plane intermediate portion is part of an H section and defines a median plane of symmetry of the support profile (thus the operator does not need to distinguish a high side and a low side and the assembly is all the more faster) ; - The support profile is made in one piece, while each of the mobile bracing devices comprises two parts (this option facilitates the assembly and reduces the cost of the kit, knowing that the use of two parts for the device of bracing allows to adjust the length of the latter); - The support profile comprises at least two parts, one of which comprises an anchor rail which extends parallel to the longitudinal axis; - The support profile comprises a plane branch extending between two free edges parallel to the longitudinal axis, transversely relative to the intermediate portion, the fixing and guiding means being formed on this flat branch and comprising a rail of anchoring which extends parallel to the longitudinal axis and is spaced from each of the two free edges (due to the distance from the free edges, flat surfaces forming for example horizontal strips are available to allow binding strips adhesives covering junctions for example vertical, on the front of the panel layer); one of the bracing member and the holding member comprises a duct and the other of the bracing member and the holding member comprises an insertion member in said duct allowing a removable attachment. between the bracing member and the holding member. Furthermore, the invention also relates to a use of the mounting kit according to the invention, wherein the support profile is fixed directly on the substrate. Also, the invention relates to a use of the mounting kit according to the invention, wherein the holding element is attached to a profile remote from the support profile by a rotational movement of the holding member around an axis perpendicular to the plane of the substrate until entering a locked relationship of the holding element on the spacer element. The invention also aims to provide an insulating panel support profile facilitating the installation of a wall lining while allowing effective mounting of a layer of PIV type panels so as to achieve excellent properties. thermal insulation. For this purpose, it is proposed a support profile intended to support a movable spacer device in a counter-partition, the support profile being formed of a single piece elongate along a longitudinal axis which includes: a rear branch which defines a rear transverse face; a front branch which defines a front transverse face; - A U-shaped section, preferably an H, of which an intermediate portion forms the bottom of at least one groove which is adapted to maintain at least one insulating panel between the rear branch and the front branch; an anchoring rail projecting forwards from the front transverse face, for fixing and guiding the mobile spacer device from said first groove, the anchoring rail being intended to ensure, after assembly of the device movable bracing member, a translation movement of the bracing device movable parallel to the longitudinal axis. Thus, using this type of support profile, the advantages of manufacturing the panels in the factory (which facilitates the assembly on the building site of the system), reducing the duration of the worksite due to the ease of laying, are cumulative. precision on the distances. According to one feature, the anchor rail is unique and substantially the same length as the support profile, this anchor rail defining a slot which is preferably narrower than the groove and opens out towards the front (which facilitates the fastening of the bracing device). According to another feature, the intermediate portion is part of an H-shaped section and extends between a large branch of the H-section which defines the rear transverse face and a small branch of the H-section which defines the front transverse face. . Optionally, the intermediate portion may be flat. The support profile is made of a plastic material of conductivity less than 0.6 VV m-1 K1, and preferably less than or equal to 0.2 VV m-1 K-1. This ensures optimal thermal performance and the fitting of the panels (arranged in continuous rows) in the same groove of the support profile facilitates the implementation of elementary panels PIV standard manufacturing. According to another feature, the rear transverse face extends perpendicularly to the intermediate portion, the front transverse face and two walls of the anchor rail delimiting at least one housing, the anchor rail comprising at least one retaining projection formed on at least one of the two walls and intended to retain in this housing an insertion element (for example and not limited to a detent pin) formed at a rear end of the movable spacer device.

Other features and advantages of the invention will emerge in the course of the following description of several of its embodiments, given by way of non-limiting examples, with reference to the accompanying drawings, in which: FIG. 1 schematically represents a first particular embodiment of a system for doubling a wall of a building for thermal insulation purposes; FIG. 2 shows a vertical sectional view of an embodiment of a wall lining system similar to that of FIG. 1; FIG. 3 shows in more detail parts of the fixing kit used in a wall-doubling system mounted as illustrated in FIGS. 1 and 2; FIGS. 4A and 4B show different views of a pivot holding member which forms part of the fixing kit shown in FIG. 3, FIG. 4B illustrating a locking configuration of this holding member on a spacer element; FIG. 5 is an exploded perspective view of the holding element and the spacer element which forms part of the fixing kit shown in FIG. 3, here in a relative translation position; - Figure 6 is a horizontal sectional view illustrating an alternative mounting kit for supporting insulating panels as in the embodiment of Figures 1 and 2; - Figure 7 is a view similar to Figure 3 showing a variant with a fixation of a pivot in a hooking device of a PIV panel support profile; - Figure 8 is a perspective view showing a corner bracket used for connecting two layers of PIV panels arranged at substantially 90 °. In the different figures, the same references designate identical or similar elements. Embodiments of a wall doubling system 1 with a thermally insulating layer according to the invention are clearly visible in FIGS. 1 and 2. The wall-doubling system 1 has a primary framework 2 and several panels 3 of the same type. Standard PIVs without associated mechanical protection each having a parallelepipedal format with the same thickness (this thickness being typically the smallest of the dimensions of the panels 3). The panels 3 are mounted on the primary framework 2 and distributed in a layer which has several rows of panels 3 of the same width. This layer has a front face Fi clearly visible in Figure 1 and a rear face F2 (Figure 2) opposite to the front face Fi. In a manner known per se and as shown in Figures 3 and 6, the insulating core 3a, porous, of the panel 3 is evacuated and enclosed in the sealed barrier envelope 3b which is preferably flexible. In Figure 1 is shown a wall lining with such a thermal insulation system 1 which includes a single layer of panels 3. The wall P1 to be coated can be of any kind, for example formed bricks or blocks grouted. Here, the insulating panels 3 are arranged in two rows and there is provided at least one support profile 10 connected directly to the wall Pi, for example by gluing or screwing, or kept parallel to the wall P1 indirectly (for example by means of uprights, profiles, and / or spacers located behind the layer of PIV panels This support profile 10 defines the junction between the first row and the second row of panels 3. The length of the support profile 10 may optionally be greater than the height of the wall P1 which is typically of the order of 2.5 m or more The support profile 10 is preferably made in one piece and has two parallel branches 10a-10b in one section in H (or possibly a U-shaped section) In this H-section and as illustrated in FIGS. 1 to 3, the rear branch 10a located on the side of the wall P1 (in the mounted state) extends from other of the interm 10c being more extensive (forming a wider side of the support profile 10) than the front branch 10b on the side of the outer facing 8. However, the support profile 10 may also have a front branch 10b with at least the same dimensions as the rear branch 10a as can be seen in FIG.

Preferably, the support profiles 10 are formed of a single block of plastic material, for example polyamide, PVC, polyurethane resin or based on composite materials, glass fibers, optionally with metal particles (for example). polyamide PA 66 filled with 25% glass fibers). The support profiles 10 and the other optional profiles 11, 12 can be made with the same type of material. Each of the support profiles 10 here has a thermal conductivity less than or equal to 0.6 VV m-1 K1 and preferably less than 0.2 or 0.25 VV m-1 K-1. In order to minimize the heat conduction through the panel layer 3, a thermal conductivity less than or equal to 0.18 VV m-1 K1 is preferred for the material of the sections 10, 11 and 12. It has been found that excessively high conductivity and too large spacing between two adjacent PIV type panels 3 were two major causes of degradation of the insulation performance. Therefore, it is important to use a material having a low thermal conductivity of 0.6 VV m-1 K1, especially with the use of profiles 10, 11, 12 which typically have a thickness of the order of 1-2 mm at the intermediate portion 10c. A thickness of the order of 3-4 mm remains interesting provided that a material is used for the sections 10, 11, 12 which has a thermal conductivity approximately two times lower, preferably less than 0.10 or 0.07. VV m-1 K-1. The material is in this case considered thermally very insulating. The advantage of using a single support profile 10 made in one piece at each of the junctions between the adjacent panels 3 is that the spacing between the two slices remains well below 5 mm, and preferably less than 4 mm . However, a rather abrupt degradation of the performance of the panel layer 3 has been noted when this gap reaches or exceeds 4 mm. In this case, conductive heat transfer takes place significantly at the junctions between the rows and the benefit of the super insulation in the panels 3 is very degraded, except to use in the junctions a material having a thermal conductivity s' approaching the better of the panels 3 type PIV. For reasons of cost of the support profiles 10 and any profiles 11, 12 and for the good mechanical strength of the layer, it is understood that it is preferable that the gap between the panels 3 (of adjacent layers) is reduced to less than 3 mm.

An adhesive tape of a kind known to those skilled in the art may optionally be used to cover the lateral junction (overlap at least on the side of the rear face F2) between two adjacent panels 3 and contiguous in the same row R1 or R2. This can make it possible to consolidate the direct sealed contact between the lateral edges of the panels 3.

With reference to the nonlimiting example of FIG. 2, the primary framework 2 comprises sections 10, 11 and 12 which make it possible to border two parallel sides of the panels 3 in the rows of panels 3 and which have a rigidity sufficient to withstand at torsion forces after connection to the wall Pi. As a non-limiting example, the support profiles 10 and any other profiles 11, 12 have a length that may exceed 120 cm and are arranged parallel to the plane P of the wall Pi, here horizontally. A mounting configuration with these sections 10, 11, 12 arranged vertically is also possible, the rows R1, R2 being in this case consist for example of insulating panels 3 juxtaposed.

A secondary frame 4 is also provided with profiles 5 of a kind known per se, for example furs of type "S47" that is easily found on the market. In this nonlimiting example, the sections 5 are arranged parallel to each other and can be arranged with the same spacing and from each other, for example of the order of 60 cm, and at a distance D1 from the wall P1 ( here a wall) significantly greater than the thickness e3 of the insulating panels 3 used. In the example of Figure 1, the profiles 5 of the secondary frame 4 are here U-shaped profiles with two return wings or furs. They are arranged vertically between a first rigid anchoring member 6, here a low rail 6 and a second rigid anchoring member, here a high rail 7, in which they are nested, maintained in the direction perpendicular to the wall Pl. In a variant as illustrated in FIG. 2, the first and second rigid anchoring members 6, 7 comprise U-shaped profiles. The secondary framework 4 provides supports for an external cladding 8 which may be of a type known in the art. for example with plaster boards. The first and second rigid anchoring members 6, 7 are fixed in a manner known per se, directly or indirectly on at least one building substrate such as for example a floor 60 and a ceiling 70 (not shown in FIG. 1), and arranged between an outer cladding 8 of the system 1 and at least one wall P1 of the building. Of course, any other method of attachment to the floor 60 or ceiling 70 may be used, for example by direct or indirect attachment to a bonding zone formed on the substrate vis-à-vis. The secondary framework 4 is typically metallic and the plates or similar parts constituting the outer face 8 are fixed in a vertical position on a secondary framework 4 which is held by a mounting and fixing system comprising spacer devices 20 each including a spacer element 30 and a holding element 40. This mounting system allows the connection of the profiles 5 of the secondary framework 4 to the support profiles 10 and possibly to the profiles 11-12 of the primary framework 2 with a spacing . The profiles 5 of the secondary framework 4, in particular when they are metallic, typically have a thickness of 0.3 to 1 mm, preferably of approximately 0.6 mm (this thickness may be less than the thickness of the profiles support 10). In variants, the structural framing members of the outer cladding 8 comprise non-metallic rigid sections or similar parts preferably forming a fur at least over part of the height of the bulkhead. Such structural framing members are provided with a fur and / or a connection of a type known per se, for example such as a clip which allows a snap-fastening of a so-called axial end before 20b of the bracing devices. 20. Figures 1 to 3 show a frame 4 with sections 5, here vertical, maintained spaced at a distance D2 from the panel layer 3 with the aid of spacer devices 20. In the assembled state, the devices braces 20 extend from their rear axial end 20a to their front axial end 20b at a height level H1 which coincides with the junction between two parallel rows of the panel layer 3. In the case of FIG. 2 it is also provided at the bottom and at the top of this layer, to fix the sections 11 and 12 with a U or L section of the primary framework 2, one on the floor 60 and the other on the ceiling 70. Optionally, the profiles 11, 12 may have a section VV with a f 5. As shown in the nonlimiting example of FIG. 1, the wall P1 generally defines a plane P and it is understood that the panel layer 3 extends parallel to this plane P to the state mounted on the support profiles 10. Similarly and as illustrated in Figure 2, the outer face 8 is reported parallel to this plane, the distances D1 and D2 being provided constant. In the mounted state as illustrated in particular in Figures 1, 2 and 6, the support profile 10 extends along a longitudinal axis A. The rear branch 10a defines a rear transverse face 13a here perpendicular to the intermediate portion 10c. In the case of a substantially planar wall P1, it is understood that this rear transverse face 13a forms a bearing face which can be directly fixed to the wall Pi. It can be seen that the intermediate portion 10c, which can be flat, forms the bottom of a pair of grooves 14a-14b (respectively on the side of its first face, here upper, and its second face, here below) when the support profile 10 has a section H. Each of these grooves 14- 14b makes it possible to maintain one side of at least one insulating panel 3 between the front branch 10 and the rear branch 10b. In a variant with a support profile 10 having a U-section (that is to say whose branches 10a-10b extend only on one side with respect to the intermediate portion 10c), the intermediate portion 10c forms of course the bottom of a single groove 14a. Although the examples shown show a support profile 10 having only two parallel branches 10a, 10b, it should be understood that any other branch format can be used and possibly with a higher number of branches 10a-10b when desired. integrate several layers of panels 3 with a spacing between the layers. The method of mounting the panel layer 3 by using the profiles 10, 11 and 12 will now be described with reference to Figures 1-2, 3 and 6.

Before arranging the panels 3 of the PIV type, the operator installs the structural elements of the primary framework 2, in particular the support profiles 10 parallel to the wall P1 at both ends, for the desired height level H1. The rear branch 10a of the U-section or H-section support section 10 is fixed to the wall by means of screws V or similar rigid fastening members of the primary framework 2. The U-section sections 11 and 12 as shown in FIG. 2 can be fixed in a manner similar to the floor 60 and the ceiling 70. The attachment can be made with a space left between the wall P1 and the panel layer 3, in particular when the rear branch 10a is generally concave side of the wall P1 and has one or more faces (s) of remote support of the intermediate portion 10c. Once the support profile or profiles 10 installed, the first row R1 of panels 3 is then formed by interlocking the panels 3 tightly in the groove 14b. It will be understood that the support profiles 10, which here preferably have an H-section, completely cover, in a sealed manner, the upper edge of the panels 3 of the first row R1. The second row R2 of panels PIV type 3 is implemented in a similar manner, filling the groove 14a. It is understood that several successive rows (at an increasing height level) can be formed identically, the insulating panels 3 of each layer here having a plate shape with corners 3c and being arranged contiguously. In alternative embodiments, the support profile 10 may comprise elastically deformable means adapted to bear on the panels 3, for example on the side of the front face F1, in order to be able to adjust these panels 3 tightly in the grooves. 14a, 14b. According to one option, a layer of compressible cellular foam may cover the inner face or faces of the groove 14a and / or 14b associated with at least one row R1, R2 of panels 3, to tighten the panels of this row. Thus, the panel 3 can slip-fit between the vertical branches 10a, 10b of the profile 11 while being protected by the layer of compressible foam. The foam layer is for example U-shaped with a thickness of between 1 and 3 mm. The maintenance and the pressure on the edge and the lower end of the front and rear faces of the panel 3 are obtained by the nature and the thickness of the protective foam, leading to a free width less than 0.5 to 2 mm ( possibly less than 3 mm) to the thickness e3 of the panels 3 of the PIV type. The upper part of the compressible foam 15 can be beveled to promote the interlocking of the panel 3. The airtightness is ensured by the tight contact between the compressible foam and the outer surface of the panel 3. It is understood that it is a slight tightening that preserves the integrity of the panel 3. It is understood that the air flow is then limited in the grooves 14a, 14b and a durable seal can be obtained, so that it is possible to isolate the thin volume of air behind the layer of panels 3 relative to the air gap formed between the front face F1 of the layer and the outer face 8. A similar clamping effect can be obtained on the faces front and rear of the panel 3 differently by using one or more beads reported or integrated in the shape of the support profile 10, these beads projecting inwardly grooves 14a, 14b. Alternatively, particularly when the support profile 10 is made of plastic, it is understood that one of the rear legs 10a or 10b before can have a sealing lip. More generally, it is understood that the use of pressure holding means may be useful to ensure airtightness and consider that one dimension in width for the grooves 14a, 14b may be suitable for several thicknesses for panel 3 type PIV. In these mounting modes, without this being an obligation, it may be advantageous to substantially reinforce the airtightness of the layer of the panels 3 by applying adhesive strips (not shown and of a type known per se). at the junctions of the panels 3, and preferably by fixing these adhesive strips on the front branch 10b of the support profile 10. For this purpose, it can be seen in FIGS. 1 and 3 that the anchoring rail 15 or device ( s) similar connection (s) can be optionally spaced from each of the longitudinal free edges of the front branch 10b of the support profile 10, so that the front face of this front branch 10b has areas (for example two flat strips) adapted for fixing the ends of the adhesive strips for reinforcing the seal. These attachment zones are here formed on either side of the anchoring rail 15. This configuration is advantageous to avoid degrading the panels 3 at the time of laying such adhesive strips. Referring now to Figure 8, an exemplary system can be seen to form a junction between two layers of panels 3 perpendicular or at an angle close to 90 ° at their intersection. To cover the corners, it is preferable that the PIV type panels 3 are supported by structural means in the form of the joining system 45 shown in Fig. 8 rather than using profiles. In this case, the width of at least one of the panels 3 which meet at the angle can be reduced if necessary, for example of the order of 300 mm against 600 mm for the panels 3 distant from the angle. The junction system 45 comprises angle brackets arranged in the angle between a first wall forming the wall P1 to be insulated and another wall of reseal or the like to be insulated which is not aligned with the wall Pi. comprises here two plates 48, 49 having a comparable thickness and preferably equal to the thickness defined by the support profiles 10 behind the panel layer 3. Each of the plates 48, 49 may consist of two sheets of plastics material separated by a light honeycomb. The latter makes it possible to obtain a thickness more or less equal to the thickness of the rear branch of the support profile 10 when the support profiles 10 are directly fixed on the wall P1. The plates 48, 49 are arranged at 90 ° C. relative to each other and a thinning may be provided at the junction 50 between the two plates 48, 49 to allow angular adjustment. A relatively flexible hinge can thus be formed to allow installation on false walls. Each plate 48, 49 is connected by screws or similar members (not shown) to the corresponding wall, through at least two orifices 52. Screwing into the walls is achieved without the screw being flush with respect to the internal face F5 plates 48, 49, which prevents the risk of deterioration of PIV type panels 3 which may rest on a portion of a plate 55 at right angles (having the general shape of an "L" in this example). In a similar way, the screwing through the rear leg 10a of the support profile 10 is preferably performed without the screw V protrudes forwardly, as shown in Figure 6. The plate 55 at right angles here two complementary and contiguous portions 55a, 55b, arranged parallel to the rows of panels 3 and at a distance from the lower ends 45a and 45b of the junction system 45. The lateral ends of two panels 3 rest respectively on these two portions 55a, 55b and a sealing adhesive strip is preferably used to connect these two panels 3, at least on the side of their face opposite the plates 48, 49. This adhesive tape or similar tape provides airtightness . The layer of PIV type panels 3 may also have, between each pair of adjacent panels 3, sealing elements forming a barrier to air flow through the layer.

It is also possible to use a junction system 45 in a different form (half-piece shorter in height) when approaching the floor 60 for the bottom row, the plate 55 then being located at the lower end 45a. Similarly, the tray 55 may be located at the upper end when approaching the ceiling 70, for the highest row.

An exemplary hooking function of the U or H section support section 10 will now be described with reference to FIGS. 2 and 3. The front branch 10b of the support profile 10 defines a front transverse face 13b on which is provided an attachment device such as an anchor rail 15 which is typically continuous and elongated in the direction of the longitudinal axis A.

The support profile 10 may be connected to the profiles 5 or similar structural frame members by using the spacer devices 20 which are fixed on the attachment device by their rear axial end 20a. In the example shown, the attachment device comprises a base which defines means for fixing and guiding the spacer device 20. The fixing and guiding function is permitted here by an anchoring rail 15 formed here by a slide provided with two parallel tabs 15a, 15b or two walls with a similar function. It can be seen in Figure 2 that these two tabs 15a, 15b protrude forwardly from the front transverse face 13b which is flat. A slot 16 or groove clearly visible in Figure 3 is defined between its two parallel tabs 15a, 15b and opens out towards the front. This slot 16 may be narrower than the groove or grooves 14a, 14b. The slot 16 thus defined makes it possible to house all or part of a male connection element 21 of the spacer device 20 and to slide the spacer device 20 parallel to the longitudinal axis A of the support profile 10. variant embodiment allowing a sliding of the spacer device 20, the support profile 10 may have a single base formed on the front transverse face 13b which replaces the anchoring rail 15, the single base may be a simple tab devoid of horizontal groove or similar slot. In this case, the rear axial end 20a may have a clamping function, for example with a jaw or a clamping rail coming to engage the base. Although the illustrated embodiments show a single base such as an anchoring rail 15, it should be understood that the fixing and guiding means can be defined by a plurality of similar bases spaced and aligned in a direction parallel to the longitudinal axis A. The lateral sliding stroke of the bracing devices 20 is in this case limited to a length less than that of the support profiles 10 but which may be considered sufficient to adjust the lateral spacing between the bracing devices 20 (and therefore the spacing and between the sections 5 attached thereto). Such spaced bases are for example integrally formed on the rear transverse face 13b of the same support profile 10. Again with reference to the example illustrated in Figures 2 and 3, we can see that the tabs 15a, 15b extend parallel on either side of a plane P10 including the intermediate portion 10c plane. Thus, the anchoring rail 15 is equidistant from the edges of the support profile 10 which delimit the grooves 14a and 14b. This position makes it possible to minimize the width extension of the branch before 10b, this extension possibly being reduced to a minimum. In this example, the width extension of the front branch 10b is only about 20 mm (and more generally between 10 and 30mm), knowing that the spacing between the tabs 15a and 15b may be less than or equal to 5 mm . As shown in FIGS. 3, 4B and 5, the male connection element 21 is part of a fastening head, provided at the rear axial end 20a, or more generally of a fastener 22 of the device of FIG. 20. This fixing member 22 may comprise a flange 22a and be provided with at least one surface Si, S2 abutting on at least one front surface facing the support profile 10, as can be seen in FIG. Here, these surfaces 51, S2 are defined by the free edges of two parallel flanks Ti, T2 which protrude from a substantially flat surface of the flange 22a. The front surface is preferably flat and defined by the front transverse face 13b. The male connection element 21 extends parallel between the two sides T1 and T2 projecting from the flange 22a and ends with a detent pin 23 which can be inserted between the tabs 15a, 15b. The male connecting member 21 has a sectional transition (with a sectional narrowing) behind this snap-on tip 23, so that two opposite lugs 21a, 21b are formed transversely to the snapping direction. The male connector member 21 may optionally have a general tab shape as wide as the flange 22a and have a snap-on tip 23 having a triangular or other sectional enlarged section. In this case, respective grooves G1, G2 of constant width may be formed between the lugs 21a, 21b and the flange 22a, as shown in FIG. 5, inside the slot 16.

To achieve retention of the male connection element 21, the tabs 15a, 15b have at least one projecting projection inwardly of the slot 16, here two projections 24, 25 vis-à-vis. The two tabs 15a, 15b are resilient and have a radial clearance. It is understood in the illustrated example that it was first inserted and engaged the fastener 22 in the slot 16 by pushing the two tabs 15a-15b. The bracing device 20 is thus brought closer together and engaged (by insertion in the anchor rail 15) against the support profile 10 in a translational movement substantially perpendicular to the front transverse face 10b of the support profile 10. chamfered surfaces of the ratchet tip 23 form first guide elements for insertion. The passage of the latching point 23 with contact between the two projections 24 and 25 has the effect of slightly widening the slot 16 due to the elastic deformation of the tabs 15a-15b, while the end of the displacement makes it possible to position the pins 21a, 21b between the front transverse face 10b and the two projections 24, 25. The displacement in the latching direction (corresponding to the arrow B in FIG. 3) is then stopped immediately because of the abutment of the surfaces Si, S2 against the front transverse face 13b of the support profile 10. It is also understood that the tabs 15a, 15b are tightened by return to their initial parallel configuration. In the abutting engagement position of the surfaces Si, S2 which prevents any displacement towards the wall Pi, the projections 24 and 25 are then placed in the grooves G1, G2 and engaged respectively on the lugs 21a, 21b (here with effect of axial stop) so as to prevent any movement in the opposite direction.

Optionally, the areas of contact with the support profile 10 defined respectively by the front surfaces Si, S2 of the sidewalls Ti, T2 and by the lugs 21a, 21b are of comparable or identical extent (for example extended over more than 4 mm, and preferably more than 10 mm in the direction of the longitudinal axis), so that the relative rotational movement of the fastener 22 relative to the support profile 10, about an axis perpendicular to the direction of 'snap, is prevented. The two blanks Ti, T2 extend externally to the slot 16 and along the tabs 15a, 15b, leaving a small clearance (or no play), so that it is also not allowed to rotate the fixing member 22 around the longitudinal axis of the spacer device 20 in the snap-in configuration illustrated in FIGS. 2 and 3. The particular example of snapping described above is not limiting, given that the anchoring rail 15 or the similar fastening means may alternatively have a male member inserted in a groove of the fastener 22. When at least one anchor rail 15 is used to obtain a degree of freedom in sliding, it is preferable that the fixing member 22 has at least one second guide element for insertion, such as one of the flanks T1, T2, which projects in an axial direction of the spacer device 20 and whose format can be plate-shaped. Such a second guide element is for example elongated parallel to the support profile 10 in the mounted state and / or several guide elements are distributed in the same plane perpendicular to the elongation direction of the support profile 10. Moreover, it is understood that the fastener 22 can be provided without the flanks T1, T2, for example in an alternative embodiment in which these two flanks are formed on the support profile 10 (with the same positioning as illustrated in FIG. 3 ), the surfaces Si, S2 being then defined at a contact zone of the flange 22 with such flanks). The fastening means for the connection between a spacer device 20 and the support profile 10 may optionally comprise an insert (not shown), for example a clip or a clip-on rail, which can catch on the edges of the branch. before 10b. In this case the support profile 10 is an assembly of several parts including the snap-on rail. The base portion of the snap-on rail extends parallel to the front branch 10b and may have, for example, one or more orifices for connecting, by a tight fitting, a fixing member 22 formed at the rear end 20a of the bracing device 20 The fastener 22 and the corresponding orifice may then have a section which differs from the circular shape to oppose a relative rotation of the spacer device 20 with respect to the support device 10. With reference to FIGS. , 4B and 5, the spacer element 30 is made in one piece, for example obtained by molding a plastic material (polyamide or PVC for example), and includes the fixing member 22. The element bracing 30 comprises a rod portion 28 which extends longitudinally along a first axis XX 'and axially joins the flange 22a or similar portion of the fastener 22. The outer surface of the rod portion 28 is cra on most of its length. In this nonlimiting embodiment, the rod portion 28 comprises rows of notches 28a, 28b separated by grooves 29. Here, two diametrically opposed rectilinear grooves 29 extend longitudinally along the axis XX 'from the flange 22a to 1 to a tip, a tip or a free end 30a of the spacer element 30. The rows of notches 28a, 28b are formed on two diametrically opposite angular fractions. At least the rod portion 28 is made of a plastic material breakable by a cutting plier. Thus, its length can be adapted to the desired distance D2 between the panel layer 3 and the outer face 8. When the spacer device 20 is fixed to the support profile 10, the axis XX 'is preferably maintained in one direction substantially perpendicular to the panel layer 3. The spacer element 30 is locked in rotation and can possibly only slide along the support profile 10 when the attachment device is in the form of an anchor rail 15, a system with several slots or similar means of fixing and guiding. Referring to Figures 1 to 5, the holding member 40 is a third piece (separate from the support profile 10 and the spacer element 30) belonging to the mounting and mounting kit for the installation of the system 1 wall doubling. The holding member 40 may be plastic (for example polyamide or PVC) or possibly metallic. The holding member 40 is rotatable about the shank portion 28 of the brace member 30 between an unblocked position and a locked position. For this, the holding member 40 comprises a through hole 41 defined by a conduit 40a, here central, provided with notches 41a, 41b on its tubular inner surface to engage the rod portion 28 of the element d 30. The notches 41a, 41b are distributed in two diametrically opposite zones separated by bore zones 41c, as can be seen in FIG. 4A. These bore zones 41c are distributed here according to two angular fractions corresponding to at least the two angular fractions forming the rows of notches 28a, 28b of the spacer member 30. In the unlocked position between the spacer member 30 and the holding member 40, it is understood that the bracing devices 20 have an adjustable length.

It can be seen, in particular in Figures 4B and 5, that the conduit 40a of the holding member 40 extends tubularly about a longitudinal axis Y-Y '. The holding element 40 has two lateral walls 40b, 40c extending parallel to this longitudinal axis YY 'and an access face 42 to the conduit 40a which extends transversely between the two side walls 40b, 40c. The conduit 40a thus opens on one side through the access face 42, between the two side walls 40b, 40c. When the X-X 'and Y-Y' axes are substantially merged and in a first relative angular position as illustrated in Figure 5, the conduit 40a and the spacer element 30 can slide into each other. In a second relative angular position, visible in FIGS. 2-3, 4B and 7, the spacer element 30 and the duct 40a engage between them the notched external surface and the notched inner surface to obtain the locked relation of the holding member 40 on the spacer member 30. The holding member 40 may include a lever L to actuate the transition from the unlocked position to the locked position and vice versa by rotation. The lever L is here unique and has an actuating portion 40d which extends axially from a radial extension arm 43 which may be substantially planar. Although the examples of FIGS. 1 to 6 show a bracing element 30 with a single rod portion 28, any type of insertion member may be used to cooperate with a duct 40a of the holding element 40. Moreover, as shown in FIG. 7, the duct 40a with the internal toothed surface may alternatively be provided in a pivot 44 engaged on the anchoring rail 15 or on a similar attachment device of the support profile 10. The rod portion 28 can in this case be designed in the same way with two rows of notches 28a, 28b and it is understood that the spacer element 30 can be directly connected to the profile 5 of the secondary frame 4. Referring to Figure 6 , the profile 5 here has a U-shaped section delimited by two branches 501, 502 and a bottom portion 51 connecting the two branches 501, 502. Return flanges 5a, 5b parallel to the bottom portion 51 are also provided, so that the p rofilé 5 forms a fur. The groove 500 of the profile 5 is thus adapted to accommodate an insertion portion of a holding member 40. A first example of fixing the holding member 40 to the profile 5 will now be described with reference to FIGS. S.

The holding member 40 may have a planar base 400 including the access face 42 to the conduit 40a and extending perpendicularly to the side walls 40b, 40c. The flat base 400 has two parallel opposite edges 401, 402. The side walls 40b, 40c define a width L4 of the holding member 40 which corresponds to the distance between the edges 401, 402. It is provided in this holding element 40 an insertion section 46 which has a depth less than that of the groove 500 of the section 5 and can be inserted in the latter. The width L4 is smaller than the width of the groove 500 and here less than or equal to the distance L5 between the edges of the return flanges 5a, 5b, so that a relative sliding movement of the insertion section 46 in the groove 500 is allowed when the side walls 40b, 40c are positioned in the direction of the length of the sections S. With respect to the duct 40a, the side walls 40b, 40c are shifted as shown in FIG. 3 and 4A and the flat base 400 can then optionally have two complementary angles Ai, A2, one of which is greater than 100 ° (for example of the order of 120 °) and the other is less than 80 ° (for example of the order of 60 °). A pair of opposed slots 61 are provided in the side wall 40b which is on the obtuse angle side A1 and a pair of opposed slots 62 is similarly provided in the side wall 40c which is on the acute angle side A2. . In this example the slots 61, 62 open on the opposite sides of these side walls 40b, 40c, that is to say on a periphery of the holding element 40. With this type of arrangement, the section of insertion 46 which has a periphery of parallelepiped shape (neither rectangle nor circular) can pivot in the groove 500 by an angle less than 90 ° (less than a quarter of a turn) between an initial position allowing a sliding in the section 5 and a setting position on the return wings 5a, 5b at the slots 61, 62 of the periphery. FIG. 2 illustrates the state of engagement of the holding element 40 in the section 5, with simultaneous locking of the spacer element 30.

With reference to FIG. 4A, the directions Z1 and Z2 respectively tangent to the bottom of the grooves 61, 62 and which correspond to the position taken by the edge of the return wings 5a and 5b in the locking position can be seen. These directions Z1, Z2 are parallel with a spacing corresponding to the distance L5 between the return wings 5a, 5b (distance L5 which is therefore greater here than the distance L6 between the bottom of the slots 61 or between the bottom of the slots 62 in the illustrated example). The direction Z2 is distant from the lever L, with here a spacing e5 much greater than the width of the corresponding return wing 5b. This arrangement makes it possible to block the sliding of the holding element 40 in the groove 500 only with contact of the return wings 5a, 5b in the slots 61, 62.

In other words, here with a pivoting angle of less than 90 °, the rotation is stopped without abutment of the lever L against one side of the section S. As a result, the actuating portion 40d of the lever L can have a shape ergonomic gripping, for example with a concave curvature outwardly on a front face F4 (as shown in Figures 4B and 5) which facilitates the decision between the thumb and the index finger.

When the holding member 40 is to be rotated, the index of the operator can thus press on the rear face F6 of the actuating portion 40d while the thumb bears on the front face F4. The lever L having no surface engaged with the profile 5, it is understood that the lever L can be designed with a small thickness which minimizes the amount of material in the holding element 4. It will be noted that the portion d The actuation 40d is in a position close to the profile 5 in the unlocked position as shown in FIG. 3 and in a position remote from this profile 5 in the locking position 5 (as illustrated by the spacing e5 in FIG. 4A).

With reference to FIG. 5, the two slots 61 and the two slots 62 extend perpendicularly to the axis YY 'and define a transition plane delimiting on one side the insertion section 46 which enters the groove 500 and on the other hand the outer portion 47 of the holding member 40 which includes the flat base 42. Of course the lever L which is accessible to a user is connected to the outer portion 47. Each of the slots 61 and 62 is delimited by: - a first surface 60a lateral generally parallel to the direction of sliding in the section 5, this first surface 60a forming part of the insertion section 46; a bottom surface 60; and a second lateral surface 60b defining a straight slope from the bottom surface to an outward opening, this second surface 60b forming part of the outer part 47. In the mounting position as illustrated in FIG. actuation 40d of the lever L protrudes perpendicular to the wall P1 from the extension arm 43. The axes XX 'and YY' of the spacer member 30 and the conduit 40a of the holding member 40 are then aligned. To achieve the attachment of the secondary frame 4, successively provides: - optionally adjust the distance between (for example 50 or 60 cm) between the spacer devices 20, by sliding the spacer element 30 already connected to the anchor rail 15; - Slidingly adjusting the position of the holding member 40, for example by sliding the profile assembly - holding member 5, 40 on the rod portion 28 (which is convenient for adjusting the verticality of the section 5 ); - To lock this position by rotation of the holding member 40, here by grasping the actuating portion 40d, by engaging the side walls 40b, 40c (at the slots 61, 62) against the wings of return 5a 5b of the profile 5, the rotation being less than 900. It may be noted that the rotation of the lever L makes it possible to rotate the holding member 40 in its entirety, in a rotation at a time with respect to the spacer element 30 (connected to the anchoring raid 15 ) and the fur forming profile 5, in which it engages. Turning the conduit 40a of the holding member 40 causes the notches 41a, 41b to engage in the rows of notches 28a, 28b of the spacer element 30, so that the desired position for the profile 5 is effectively locked. If there has been prior blocking of the translation of the holding member 40 on the spacer member 30, the unlocking of this translation is obtained by a simple rotation of the first on the second along an axis perpendicular to the This type of adjustment and locking is convenient to adapt to the dimensional constraints of the particular context. Prior to this blocking, one or more profiles 5 may optionally be nested in a bottom rail 6 and a top rail 7 and the linearity may be adjusted by adjusting the position and the length of the respective bracing devices 20. It is understood that the blocking can be achieved in this case successively by tilting the levers L in a few quickly chained gestures. A second example of attachment of the holding element 40 to the profile 5 will now be described with reference to FIG.

In the mounting situation illustrated here, only the bracing member 30 is fixed by being already connected to the support profile 10 by fastening means such as the anchor rail 15. The holding member 40 is on the other hand removable. The notable difference from the previous example is the use of a holding member 40 which has an outer groove 63 continuous on its lateral periphery.

In this case, the profile 5 has a clip function with the return wings 5a, 5b which engage in the outer groove 63. The length adjustment of the spacer device 20 is then achieved by turning the portion of 40th actuation of the holding member 40. This actuating portion 40e has a gripping surface which extends entirely around the longitudinal axis YY ', being here symmetrical, which also makes it practical for a right-handed operator than left-handed. With a rod 28 with external toothed surface as in the previous example, the insertion movement in the duct 40a is easy and a rotation of about a quarter turn allows the blocking between these two parts. In the case of a rod portion 28 threaded in conventional manner, the adjustment can be made by rotating the actuating portion 40e to the desired insertion level of the rod 28 threaded in the conduit 40a which is then also provided with a thread. Moreover, the arrows shown in FIG. 6 illustrate the degree of freedom in translation allowed by the slot 16 of the anchor rail 15 or similar slot (s) of the fastening device formed on the support profile 10. The insertion section 46 is here inserted in the groove 500 of the profile and in close contact against the return wings 5a, 5b, with a possibility of sliding (with friction) in the groove 500. The conduit 40a can be plugged which allows to avoid a contact of the rod portion 28 with the bottom portion 51 of the profile 5. An alternative embodiment of a mounting and fixing kit will now be described with reference to Figure 7. The profile of support 10 here comprises an anchoring rail 15 whose tabs 15a, 15b are elastically deformable and perform a retaining function identically or similar to the return wings of a fur. The kit comprises a fastener 22, which preferably contains a single piece 44 forming a pivot. The fixing member 22 engages directly in the anchoring rail 15. In the mounting situation illustrated in FIG. 7, it is the spacer member 30 which is removable while the fixing member 22 is fixed in translation along an axis perpendicular to the wall P1 (no sliding along its longitudinal axis). The fastener 22 may laterally have on its periphery an annular groove 64 or 65 similarly to the groove 63 of the holding member 40 shown in FIG. 6. The male portion of the fastener 22 enters the slot 16 and engages in the manner of a clip. In a variant, it may be provided to double the grooves with an axial offset. In the latter case it is understood that such a connecting element can be used to adjust the spacing distance in depth D2 between the outer face 8 and the front face F1 of the panel layer 3, according to which the tabs are positioned. 15a, 15b of the support profile 10 in the foremost grooves 65 or in the grooves 64 further back. In addition, and especially when the free space E between the outer face 8 and the front face F1 of the panel layer 3 must be large, the fastener 22 may comprise a tubular body similar to the conduit 40a of the holding member 40 previously described, with notches or a thread on the side of its inner face to be locked or screwed on the rod portion 28 of the spacer member 30. It is understood that the fastener 22 defines here the rear axial end 20a of the spacer device 20.

Referring again to Figure 7, the rod portion 28 extends here from a wider holding member 40 which is fixed in the groove 500 of the fur section 5. A groove 63, here annular, of the holding member 40 allows snapping on the return flanges of the profile 5. It is understood that the holding member 40 here defines the forward axial end 20b of the spacer device 20 and is part of the spacer element 30 which is monolithic. The latter is preferably made of injected thermoplastic which has a very good rigidity. After possible sliding in the anchoring rail 15 of the fastener 22, the relative position of the spacer member 30 relative to the fastener 22 can be adjusted in translation, in the same manner as previously described. The use of rectilinear grooves 29 is advantageous for achieving a translation without any mechanical connection. The locking is provided here by the rotation of the fastener 22, by gripping the gripping portion 72 thereof. This gripping portion 72 is for example widened relative to the insertable portion housed in the slot 16 and located on the side of the rear end of the fastener. Alternatively, a lever may be provided to actuate the rotation of this fastener 22. In another variant (not shown), the fastener 22 is formed of a non-rotating part, being only telescopically movable for move along the axis XX 'of the bracing element 30. In this case, the length adjustment of the bracing device 20 can be achieved by a pin or a locking system (rack type) blocking by defect the relative displacement between the fastener 22 and the spacer member 30.

Whatever the type of operation to block the position of the spacer member 30 after its lateral adjustment and / or depth, it is understood that the profiles 5 can be mounted quickly and positioned with easy adjustment. Finally, it remains to fix the outer face 8, typically consisting of at least one plate, parallel and remote from the panel layer 3, preferably directly on the profiles 5 by a fastening method known per se. One of the advantages of the thermal insulation system 1 is to minimize the assembly time through the use of a primary frame 2 which facilitates the installation of PIV type panels 3 while allowing an effective adjustment of the distance between centers. spacing devices 20 and / or the distance D1 between the panel layer 3 and the profiles 5 of the secondary frame 4. It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Thus, although the intermediate portion 10c has been described in all the above as being planar and forming part of an H-shaped section, by defining a median plane P10 of symmetry of the support profile 10, it should be understood that 10 d Other formats of the support profiles 10 are also suitable, since a groove 14a is provided for carrying out the support function of at least one row of insulating panels 3 and at least one base for allowing the devices to be fixed and supported. 20. Also, it can be provided to use support profiles 10 having a U-section (but otherwise completely similar to the H-section support profiles described above) for respectively supporting the rows R 1, R 2 from the bottom. In this case, a bonding of the upper edge of the panels 3 on the underside of the intermediate portion 10c can be realized directly or indirectly (for example via a very thin additional layer for example which covers the panel 3 of the PIV type). 20

Claims (14)

REVENDICATIONS1. Mounting kit for holding profiles (5) at a given distance from a substrate, in particular a wall (P1) to be doubled, the mounting kit comprising: - a movable spacer device (20) which presents a first axial end (20a) provided with a fastener (22) and a second axial end (20b) provided with a holding member (40), the movable bracing device comprising a spacer element (30); ) extending between the fixing member (22) and the holding member (40); and - a support profile (10) adapted to support the movable bracing device (20), the support profile being elongated along a longitudinal axis (A) and intended to be mounted parallel to a plane (P) of the substrate; characterized in that the support profile (10) comprises; a U-shaped section, preferably an H-shaped section, of which a planar intermediate portion (10c) forms the bottom of at least one groove (14a, 14b) which is adapted to maintain at least one insulating panel (3) such as a PIV panel substantially parallel to the plane (P) of the substrate in the mounted state of the support profile (10); and - means (13b, 15) for fixing and guiding the spacer device (20) movable out of said groove (14a, 14b), intended to ensure, after mounting the mobile bracing device, a translational movement of the bracing device movable parallel to said longitudinal axis (A). 2. Kit according to claim 1, wherein said fixing and guiding means (13b, 15) comprise a single base substantially of the same length as the length of the support profile (10). 3. Kit according to claim 1 or 2, wherein said fixing and guiding means (13b, 15) comprise a slot (16) narrower than said groove (14a, 14b), said fixing member (22) comprising: a flange (22a); and - a male connection member (21) projecting from the flange (22a) and adapted to engage the slot (16). 4. Kit according to any one of the preceding claims, whereinthe said intermediate portion (10c) plane is part of an H-section and defines a median plane (P10) of symmetry of the support profile (10). 5. Kit according to any one of claims 1 to 4, wherein the support profile (10) is formed in one piece, while each of the mobile bracing devices (20) comprises two parts (30, 40). . 6. Kit according to any one of claims 1 to 4, wherein the support profile (10) comprises at least two parts, one of which comprises an anchor rail (15) which extends parallel to the axis longitudinal (A). 7. Kit according to any one of claims 1 to 5, wherein the support profile (10) comprises a plane branch (10b) extending between two free edges parallel to the longitudinal axis (A), transversely relative to the intermediate portion (10c), said fixing and guiding means (13b, 15) being formed on the flat limb (10b) of the support profile (10) and comprising an anchoring rail (15) which extends parallel to the longitudinal axis (A) and is spaced apart from each of the two free edges. A kit according to any one of the preceding claims, wherein one of the spacer element (30) and the holding member (40) comprises a conduit (40a) and the other of the element brace and the holding member comprises an insertion member (28) in said conduit for releasable attachment between the brace member and the holding member. 9. Use of the mounting kit according to any one of claims 1 to 8, characterized in that the support profile (10) is fixed directly on the substrate. 10. Use of the mounting kit according to any one of claims 1 to 8, characterized in that the holding member (40) is attached to a profile (5) remote from the support profile (10) by a movement of rotating the holding member about an axis (Y-Y ') perpendicular to the plane (P) of the substrate until entering a locked relationship of the holding member (40) on the bracing member (30). 11. Insulating panel support profile (10) (3) for supporting a spacer device (20) movable in a counter-partition, the support profile being elongated along a longitudinal axis (A) and formed of one piece, characterized in that it comprises: - a rear branch (10a) which defines a rear transverse face (13a); a front branch (10b) which defines a front transverse face (13b); a U-shaped section, and preferably an H-shaped section, of which an intermediate portion (10c) forms the bottom of at least one groove (14a, 14b) which is adapted to maintain at least one insulating panel (3) between the rear branch (10a) and the front branch (10b); an anchor rail (15) projecting forwards from the front transverse face (13b), for fixing and guiding the spacer device (20) movable out of said first groove (14a, 14b), the anchoring rail being intended to ensure, after mounting the mobile bracing device, a translational movement of the bracing device (20) movable parallel to the longitudinal axis (A). 12. Insulating panel support profile (10) according to claim 11, wherein the anchor rail (15) is single and substantially the same length as the support profile (10), the anchor rail defining a slot (16) which is preferably narrower than said groove (14a, 14b) and opens out forwards. An insulating panel support profile (10) according to claim 11 or 12, wherein the intermediate portion (10c) is part of an H-section and extends between a large branch of the H-section which defines the rear transverse face (13a) and a small branch of the H section which defines the front transverse face (13b), said support profile being made of a plastic material of conductivity less than 0.6 VV m-1 K1, and preferably less than or equal to 0.2 Wm1 K1. 14. Insulating board support profile (10) according to any one of claims 11 to 13, wherein the intermediate portion (10c) of the support profile (10) is flat and said rear transverse face (13a) extends perpendicularly to the intermediate portion, the front transverse face (13b) and two walls of the anchor rail (15) delimiting at least one housing, the anchor rail comprising at least one projection (24, 25) of retaining formed on the at least one of the two walls and intended to retain in said housing an insertion element (23) formed at a rear end (20a) of the movable bracing device (20).