EP2959074B1 - Kit for attaching a wall lining, suitable for holding vip's, and associated supporting profiled section - Google Patents

Description

The present invention relates, in the field of building, 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, super thermal insulators are termed materials having, at ambient temperature, a thermal conductivity level of less than 25 mW m ^-1 K ^-1 . The PIV panels have a thermal conductivity of less than 7 mW m ^-1 K ^-1 , and more preferably less than 5 mW 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 an installation However, thermal insulation is 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 mW m ^-1 K ^-1 or more instead of 5 to 7 mW m ^-1 K ^-1 for a panel intact vacuum insulation).

To facilitate the installation of the panels by limiting the risks of degradation and minimizing the thermal bridges, it has been proposed in the document US 2006/0265988 A1 using a support section of complex shape, metal or rigid plastic, which has an H-section with a flat intermediate portion adapted to be inserted 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.

• le profilé utilisé est complexe et n'offre pas de flexibilité de montage (pas possible par exemple d'ajuster l'écartement entre le parement externe et la paroi du bâtiment) ;
• il est nécessaire d'utiliser des éléments de parement spécifiques pouvant s'engager contre l'élément de maintien selon un montage superposé (système inadapté pour des plaques de parement de type standard ayant des tolérances de fabrication).

The editing described in US 2006/0265988 A1 however, has 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 wall of the building);
• it is necessary to use specific facing elements that can engage against the holding element according to a superimposed assembly (system unsuitable for standard type facing plates having manufacturing tolerances).

• une pièce d'entretoisement se composant d'une tige filetée se terminant par une plaque de raccordement à la paroi ; et
• un organe de maintien d'une fourrure, qui présente d'une part un trou pourvu d'un filetage pour s'engager sur la tige de la pièce d'entretoisement, et d'autre part une portion de fixation avec des fentes de clipsage pour coopérer avec les ailes de retour de la fourrure.

It is also known from the document FR 2849461 , a kit for mounting and fixing a frame with an external facing, to maintain and adjust 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 includes a plurality of bracing devices and has:

• a bracing piece 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 clipping slots 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 mounting method described in FR 2849461 is that it is unsuitable for the use of PIV type panels, this document only intended to isolate with a filling material such as mineral wool that does not have insulation performance comparable to a panel type PIV. The same disadvantage is encountered with the mounting method described in FR 2878876 .

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.

• un dispositif d'entretoisement mobile qui présente une première extrémité axiale pourvue d'un organe de fixation et une deuxième extrémité axiale pourvue d'un élément de maintien, le dispositif d'entretoisement mobile comprenant un élément d'entretoisement qui s'étend entre l'organe de fixation et l'élément de maintien ; et
• un profilé de support adapté pour supporter le dispositif d'entretoisement mobile, le profilé de support étant allongé selon un axe longitudinal et destiné à être monté parallèlement à un plan du substrat, ce profilé de support comportant ;
  • une section en U, et de préférence en H, dont une portion intermédiaire plane forme le fond d'au moins une rainure qui est adaptée pour maintenir au moins un panneau isolant tel qu'un panneau PIV de façon sensiblement parallèle au plan du substrat à l'état monté du profilé de support ; et
  • des moyens de fixation et guidage du dispositif d'entretoisement mobile (guidage hors de ladite rainure), destinés à assurer, après montage du dispositif d'entretoisement mobile, un mouvement de translation du dispositif d'entretoisement mobile parallèlement à l'axe longitudinal.

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 mobile bracing device which has a first axial end provided with a fastener and a second axial end provided with a holding member, the movable bracing device comprising a bracing member which extends between the fastener and the holding member; and
• a support profile adapted to support the movable bracing device, the support profile being elongated along a longitudinal axis and intended to be mounted parallel to a plane of the substrate, this support profile comprising;
  • a U-shaped section, and preferably an H, of which a planar 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; the mounted state of the support profile; and
  • means for fixing and guiding the mobile bracing 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 longitudinal axis.

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.

• les moyens de fixation et guidage comportent une unique embase sensiblement de même longueur que la longueur du profilé de support ;
• les moyens de fixation et guidage comportent une fente plus étroite que la rainure, l'organe de fixation comportant une bride et un élément de connexion mâle faisant saillie depuis la bride et destiné à s'engager dans la fente (ainsi le dispositif d'entretoisement peut être fixé à la manière d'un clip dans la fente qui est ici étroite pour minimiser l'encombrement de l'organe de fixation du dispositif d'entretoisement) ;
• la portion intermédiaire plane fait partie d'une section en H et définit un plan médian de symétrie du profilé de support (ainsi l'opérateur n'a pas besoin de distinguer un côté haut et un côté bas et le montage est d'autant plus rapide) ;
• le profilé de support est réalisé d'une pièce, tandis que chacun des dispositifs d'entretoisement mobiles comprend deux pièces (cette option facilite le montage et réduit le coût du kit, sachant que l'utilisation de deux pièces pour le dispositif d'entretoisement permet d'ajuster la longueur de ce dernier) ;
• le profilé de support comprend au moins deux pièces dont l'une comprend un rail d'ancrage qui s'étend parallèlement à l'axe longitudinal ;
• le profilé de support comprend une branche plane s'étendant entre deux bords libres parallèles à l'axe longitudinal, de façon transversale par rapport à la portion intermédiaire, les moyens de fixation et guidage étant formés sur cette branche plane et comprenant un rail d'ancrage qui s'étend parallèlement à l'axe longitudinal et est éloigné de chacun des deux bords libres (du fait de la distance par rapport aux bords libres, des surfaces planes formant par exemple des bandes horizontales sont disponibles pour permettre une fixation de bandes adhésives de recouvrement de jonctions par exemple verticales, sur l'avant de la couche de panneaux) ;
• l'un parmi l'élément d'entretoisement et l'élément de maintien comprend un conduit et l'autre parmi l'élément d'entretoisement et l'élément de maintien comprend un organe d'insertion dans ledit conduit permettant une fixation amovible entre l'élément d'entretoisement et l'élément de maintien.

In various embodiments of the mounting and fastening kit according to the invention, one or more of the following provisions may also be used:

• the fixing and guiding means comprise a single base substantially of 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 having a flange and a male connecting member projecting from the flange and intended to engage the slot (thus the spacer device can be fixed in the manner of a clip in the slot which is here narrow to minimize the size of the fastener of the spacer device);
• the flat 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 quick) ;
• the support profile is made in one piece, while each of the mobile bracing devices comprises two parts (this option facilitates assembly and reduces the cost of the kit, knowing that the use of two parts for the bracing device 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 with respect 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 distant from each of the two free edges (because of the distance from the free edges, flat surfaces forming for example horizontal strips are available to allow attachment of adhesive strips 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 insert member in said duct for releasable 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.

Another object of the invention is to provide a support profile for insulating panels facilitating the installation of a wall lining while allowing a effective mounting of a layer of PIV type panels to achieve excellent thermal insulation properties.

• une branche arrière qui définit une face transversale arrière ;
• une branche avant qui définit une face transversale avant ;
• une section en U, et de préférence en H, dont une portion intermédiaire forme le fond d'au moins une rainure qui est adaptée pour maintenir au moins un panneau isolant entre la branche arrière et la branche avant (cette portion intermédiaire présentant de préférence une épaisseur constante) ;
• un rail d'ancrage en saillie vers l'avant depuis la face transversale avant, pour la fixation et le guidage du dispositif d'entretoisement mobile hors de ladite première rainure, le rail d'ancrage étant destiné à assurer, après montage du dispositif d'entretoisement mobile, un mouvement de translation du dispositif d'entretoisement mobile parallèlement à l'axe longitudinal.

For this purpose, there is provided a support profile for supporting a movable bracing 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 section U, and preferably H, an intermediate portion of which 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 (this intermediate portion preferably having a constant thickness);
• an anchoring rail protruding forwardly from the front transverse face, for fixing and guiding the movable spacer device from said first groove, the anchoring rail being intended to ensure, after mounting the device of mobile bracing, a translational movement of the movable bracing device 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 having a conductivity of less than 0.6 W m ^-1 K ^-1 , and preferably less than or equal to 0.2 W 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 anchor rail walls 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 in a non-limiting manner, a detent pin) formed at a rear end of the movable bracing device.

• la figure 1 représente schématiquement une première forme de réalisation particulière d'un système de doublage d'une paroi d'un bâtiment à des fins d'isolation thermique ;
• la figure 2 montre une vue en coupe verticale d'une forme de réalisation d'un système de doublage de paroi similaire à celui de la figure 1 ;
• la figure 3 montre plus en détail des pièces du kit de fixation utilisé dans un système de doublage de paroi monté comme illustré sur les figures 1 et 2 ;
• les figures 4A et 4B représentent différentes vues d'un élément de maintien formant pivot qui fait partie du kit de fixation montré sur la figure 3, la figure 4B illustrant une configuration de blocage de cet élément de maintien sur un élément d'entretoisement ;
• la figure 5 est une vue éclatée en perspective de l'élément de maintien et de l'élément d'entretoisement qui fait partie du kit de fixation montré sur la figure 3, ici dans une position de translation relative ;
• la figure 6 est une vue en en coupe horizontale illustrant une variante de kit de montage permettant de supporter des panneaux isolants comme dans la forme de réalisation des figures 1 et 2 ;
• la figure 7 est une vue similaire à la figure 3 montrant une variante avec une fixation d'un pivot dans un dispositif d'accrochage d'un profilé de support de panneaux PIV ;
• la figure 8 est une vue en perspective montrant une équerre d'angle utilisée pour le raccordement de deux couches de panneaux PIV agencés à sensiblement 90°.

Other features and advantages of the invention will emerge during the following description of several of its embodiments, given by way of non-limiting examples, with reference to the accompanying drawings in which:

• the figure 1 schematically represents a first particular embodiment of a system for doubling a wall of a building for thermal insulation purposes;
• the figure 2 shows a vertical sectional view of an embodiment of a wall-doubling system similar to that of the figure 1 ;
• the figure 3 shows in more detail parts of the fastening kit used in a wall-mounted lining system as shown in the figures 1 and 2 ;
• the Figures 4A and 4B are different views of a pivot holding member which is part of the mounting kit shown on the figure 3 , the Figure 4B illustrating a blocking configuration of this holding member on a spacer element;
• the figure 5 is an exploded view in perspective of the holding element and the spacer element which is part of the fastening kit shown in FIG. figure 3 here in a position of relative translation;
• the 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 ;
• the figure 7 is a view similar to the figure 3 showing a variant with a fixation of a pivot in a hanging device of a PIV panel support profile;
• the figure 8 is a perspective view showing a corner angle used for the connection of 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 on the figures 1 and 2 . The wall doubling system 1 has a primary frame 2 and several standard PIV type panels 3 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 F1 clearly visible on the figure 1 and a rear face F2 ( figure 2 ) opposite the F1 front. In a manner known per se and as shown in figures 3 and 6 , the porous insulating core 3a of the panel 3 is evacuated and enclosed in the sealed barrier envelope 3b which is preferably flexible.

On the figure 1 there 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 may be of any kind, for example formed of 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 P1, for example by gluing or by 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 section in H and as shown in Figures 1 to 3 , the rear leg 10a located on the side of the wall P1 (in the mounted state) extends on either side of the intermediate portion 10c while being wider (forming a wider side of the support profile 10) However, the support section 10 may also have a front branch 10b with at least the same dimensions as the rear branch 10a, as can be seen from FIG. figure 7 .

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 W m ^-1 K ^-1 and preferably lower at 0.2 or 0.25 W 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 W m ^-1 K ^-1 is preferred for the material of the sections 10, 11 and 12. It has been found that that too 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 W m ^-1 K ^-1 or less, particularly with the use of profiles 10, 11, 12 which have typically 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. W 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 non-limiting example of figure 2 , the primary frame 2 comprises sections 10, 11 and 12 which allow to border two parallel sides of the panels 3 in the rows of panels 3 and which have sufficient rigidity to withstand twisting forces after connection to the wall P1. By way of non-limiting example, the support profiles 10 and any other profiles 11, 12 have a length that can exceed 120 cm and are arranged parallel to the plane P of the wall P1, 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 e1 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 the 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, held in the direction perpendicular to the wall P1. In a variant as illustrated on the figure 2 the first and second rigid anchoring members 6, 7 comprise U-shaped sections. The secondary framework 4 provides supports for an external cladding 8 which may be of a type known per se, 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. figure 1 ), and arranged between an outer facing 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 frame 4, in particular when they are metallic, have typically a thickness of 0.3 to 1 mm, preferably about 0.6 mm (this thickness may be less than the thickness of the support profiles 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.

The Figures 1 to 3 show a frame 4 with profiles 5, here vertical, kept spaced at a distance D2 from the panel layer 3 by means of the spacer devices 20. In the mounted state, the spacer devices 20 extend from their rear axial end 20a to their forward 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 the figure 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 in W with a function of spacing and maintenance of the profiles 5.

As shown in the non-limiting example of figure 1 , the wall P1 generally defines a plane P and it is understood that the panel layer 3 extends parallel to this plane P in the mounted state on the support profile or profiles 10. In a similar way and as illustrated in FIG. 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 on 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 flat wall P1, it is understood that this rear transverse face 13a forms a bearing face which can be directly fixed to the wall P1. It can be seen that the intermediate portion 10c, which may 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 profile 10 each of these grooves 14a-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 section 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 form 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 the 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 on the figure 2 can be fixed similarly 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 on the side of the wall P1 and has one or more faces of support remote from 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 inside face (s) 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 isolating the thin air volume located behind the panel layer 3 with respect to the air gap formed between the front face F1 of the layer and the outer facing 8.

A similar clamping effect can be obtained on the front and rear faces of the panel 3 in a different way by using one or more beads reported or integrated in the shape of the support profile 10, these beads protruding inwardly from the 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 is possible to see on the figures 1 and 3 that the anchoring rail 15 or similar connecting device (s) may be possibly spaced apart from each of the longitudinal free edges of the front branch 10b of the support profile 10, so that the front face of this branch before 10b presents zones (for example two flat strips) suitable for fixing the ends of the adhesive strips of strengthening 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 the figure 8 we can see an example of a system to form a junction between two layers of panels 3 perpendicular or forming an angle close to 90 ° at their intersection. To cover the angles, it is preferable that the PIV type panels 3 are supported by structural means which are in the form of the joining system 45 shown in FIG. figure 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 joining system 45 comprises angle brackets arranged in the angle between a first wall forming the wall P1 to be insulated and another wall of splits or the like to isolate which is not aligned with the wall P1. The bracket here comprises 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 made of plastic 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 ° 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 carried out without the screw V protruding forward, as shown in FIG. figure 6 .

The plate 55 at right angles here has 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 45. The lateral ends of two panels 3 are respectively resting on one and the other of these two portions 55a, 55b and an adhesive sealing strip is preferably used to connect these two panels 3, at least on the side of their face opposite to 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 example of the attachment function of the support section 10 with a U or H section will now be described with reference to FIGS. Figures 2 and 3 .

The front branch 10b of the support profile 10 defines a front transverse face 13b on which is provided a hooking device such as an anchoring 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 framing members by use of 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.

We can see on the 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 on the 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 bracing device 20 and to slide the bracing device 20 parallel to the longitudinal axis A of the support profile 10.

As clearly visible on Figures 2 and 3 the anchoring device, here in the form of the anchoring rail 15, extends the H-section support section 10 in the direction of the shortest dimension of the three dimensions of the support section 10. This dimension short is for example less than the axial length of the spacer element 30. With PIV type panels 3, it is indeed possible to limit the distance (defined by the intermediate portion 10c) between the rear support face 13a and the attachment device. The bracing element 30 must, however, typically be longer than this distance, in order to prevent the risk of piercing a watertight barrier envelope 3b of the panel layer 3. Moreover, we can see very clearly the Figures 1 to 3 that the free ends of the branches 10a and 10b each define an outer edge without asperity. The free end or ends of the front branch 10b are preferably spaced apart from the bracing device 20. The branches 10a and 10b can be spaced a distance which is constant from the free ends to the junction, here at right angles, with the intermediate portion 10c.

In an alternative 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 anchor rail 15, the single base may be a simple tongue 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 e1 between the profiles 5 attached thereto). Such spaced bases are for example formed integrally on the rear transverse face 13b of the same support section 10.

Again with reference to the illustrated example on Figures 2 and 3 it can be seen that the tabs 15a, 15b extend parallel to each other on 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 30 mm), knowing that the spacing between the tabs 15a and 15b may be less than or equal to 5 mm.

As shown on figures 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 fixing member 22 of the spacer device 20. This fastener 22 may comprise a flange 22a and be provided with at least one surface S1, S2 abutting on at least one front surface facing the support profile 10, as visible figure 3 . Here, these surfaces S1, S2 are defined by the free edges of two parallel flanks T1, T2 which project 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 snap point 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 can be formed between the lugs 21a, 21b and the flange 22a, as illustrated. figure 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. movement in the detent direction (corresponding to arrow B on the figure 3 ) is then stopped immediately because of the abutment of the surfaces S1, 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 engagement position in abutment of the surfaces S1, S2 which prevents any displacement towards the wall P1, 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 S1, S2 of the flanks T1, 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 T1, 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 about the longitudinal axis of the spacer device 20 in the snap-in configuration illustrated in FIGS. Figures 2 and 3 .

The particular example of latching described above is not limiting, knowing that the anchoring rail 15 or the similar fastening means may alternatively have a male member fitting into a groove of the fastener 22 When at least one anchoring rail 15 is used to obtain a sliding degree of freedom, it is preferable that the fixing member 22 has at least one second guiding element for insertion, such as one of the flanks T1, T2, which protrudes 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 fastening member 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 on FIG. figure 3 ), the surfaces S1, S2 being then defined at a contact zone of the flange 22 with such flanks).

Fixing means for connection between a device brace 20 and the support profile 10 may optionally include an insert (not shown), for example a clip or a clip-on rail, which can hook on the edges of the front branch 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 fixing member 22 and the corresponding orifice may then have a section which differs from the circular shape to oppose relative rotation of the spacer device 20 with respect to the support device 10.

With reference to figures 3 , 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 spacer element 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 notched for the majority 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 a direction substantially perpendicular to the panel layer 3. The spacer element 30 is locked in rotation and can optionally only slide along the support profile 10 when the attachment device is in the form of an anchoring rail 15, a system with multiple slots or similar means of fixing and guiding.

With reference 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 wall-lining system 1. The holding element 40 may be made of plastic (for example example polyamide or PVC) or possibly metal. 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 visible Figure 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.

We can see, especially on Figures 4B and 5 that the conduit 40a of the holding member 40 extends tubularly about a longitudinal axis Y-Y '. The holding member 40 has two side walls 40b, 40c extending parallel to this longitudinal axis YY 'and an access face 42 to the duct 40a extending 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 axes XX 'and YY' are substantially merged and in a first relative angular position as illustrated in FIG. figure 5 the duct 40a and the spacer element 30 can slide into each other.

In a second relative angular position, visible on the figures 2-3 , 4B and 7 the spacer element 30 and the duct 40a engage the notched outer surface and the notched inner surface between them to obtain the locked relationship of the holding member 40 on the bracing element 30. The holding element 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 Figures 1 to 6 show a spacer element 30 with a single rod portion 28, any type of insertion member may be used to cooperate with a conduit 40a of the holding element 40. Moreover, as illustrated in FIG. figure 7 , the duct 40a with the inner 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. rod 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.

With reference to the 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 profile 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 of the holding element 40 to the profile 5 will now be described with reference to the Figures 2 to 5 .

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 profiles 5.

With respect to the duct 40a, the side walls 40b, 40c are offset as visible figure 3 and 4A and the plane base 400 may then optionally have two complementary angles A1, 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 opposite 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 insertion section 46 which has a periphery of parallelepipedal shape (neither rectangle nor circular) can pivot in the groove 500 of an angle less than 90 ° (less than a quarter of a turn) between an initial position allowing sliding in the section 5 and a setting position on the return wings 5a, 5b at the slots 61, 62 of the periphery. The figure 2 illustrated the state of engagement of the holding element 40 in the section 5, with simultaneous locking of the spacer member 30.

With reference to the Figure 4A , we can see 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. 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 a contact of the return wings 5a, 5b in the slots 61, 62. In other words, here with a pivoting of an angle less than 90 °, the rotation is stopped without abutment of the lever L against one side of the profile 5. As a result, the actuating portion 40d of the lever L can have an ergonomic shape of grip, for example with a concave curvature towards the outside on a front side F4 (as visible Figures 4B and 5 ) which facilitates the grip 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 40d is in a position close to the section 5 in the unlocked position as visible on the figure 3 and in a position remote from this profile 5 in the locking position 5 (as illustrated by the spacing e5 on the Figure 4A ).

• une première surface 60a latérale généralement parallèle à la direction de coulissement dans le profilé 5, cette première surface 60a faisant partie du tronçon d'insertion 46 ;
• une surface de fond 60 ; et
• une deuxième surface 60b latérale définissant une pente droite depuis la surface de fond jusqu'un à débouché extérieur, cette deuxième surface 60b faisant partie de la partie externe 47.

With reference to the figure 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, said second surface 60b forming part of the outer portion 47.

• optionnellement d'ajuster l'entraxe (par exemple 50 ou 60 cm) entre les dispositifs d'entretoisement 20, par coulissement de l'élément d'entretoisement 30 déjà raccordé au rail d'ancrage 15 ;
• d'ajuster en coulissement la position de l'élément de maintien 40, par exemple en faisant glisser l'ensemble profilé - élément de maintien 5, 40 sur la portion de tige 28 (ce qui est pratique pour ajuster la verticalité du profilé 5) ;
• de verrouiller cette position par rotation de l'élément de maintien 40, ici en saisissant la portion d'actionnement 40d, par mise en prise des parois latérales 40b, 40c (au niveau des fentes 61, 62) contre les ailes de retour 5a, 5b du profilé 5, la rotation étant inférieure à 90°.

In mounting position as shown on the figure 3 , the actuating portion 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 element 40 are then aligned. To achieve the fixation of the secondary frame 4, successively provides:

• optionally to adjust the spacing (for example 50 or 60 cm) between the spacer devices 20, by sliding the spacer member 30 already connected to the anchor rail 15;
• slidably 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 profile 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 return wings 5a, 5b of the profile 5, the rotation being less than 90 °.

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 wall P1.

This type of adjustment and locking is practical 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 member 40 to the profile 5 will now be described with reference to the figure 6 .

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 on the figure 6 illustrate the degree of freedom in translation allowed by the slot 16 of the anchor rail 15 or similar slot (s) of the attachment 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 prevents 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 the figure 7 .

The support profile 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. figure 7 it is the bracing 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 in a similar manner to the groove 63 of the holding member 40 shown in FIG. figure 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.

Still referring to the figure 7 , the rod portion 28 extends here from a wider holding member 40 which is fixed in the groove 500 of the fur profile. 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 to move along the axis XX 'of the bracing member 30. In this case, the length adjustment of the bracing device 20 can be realized by a pin or by a notching system (rack type) blocking by default the relative displacement between the fixing member 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. The thermal insulation system 1 is therefore well suited for covering existing wall walls, typically to form an interior insulation in a building (between a floor 60 and a ceiling 70).

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 distance D1 between the panel layer 3 and the profiles 5 of the secondary framework 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 must be understood that of Other formats of the support profiles 10 are also suitable, since there is provided a groove 14a for carrying out the support function of at least one row of insulating panels 3 and at least one base to allow the fixing and support of the devices. 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) to respectively support the rows R1, R2 by the low. In this case, a bonding of the upper edge of the panels 3 on the underside of the intermediate portion 10c may be carried out directly or indirectly (for example via a very thin additional layer for example which covers the panel 3 type PIV).

Claims (15)

1. Mounting kit for the retention of profiles (5) at a given distance from a substrate, in particular from a wall (P1) to be lined, the mounting kit comprising:

   - a mobile strutting device (20) that has a first axial end (20a) provided with a fastening member (22) and a second axial end (20b) provided with a retention element (40), the mobile strutting device comprising a strutting element (30) that extends between the fastening member (22) and the retention element (40); and

   - a supporting profile (10) adapted for supporting the mobile strutting device (20), the supporting profile being elongated along a longitudinal axis (A) and intended to be mounted in parallel to a plane (P) of the substrate;

   characterised in that the supporting profile (10) comprises:

   - a section that is U-shaped, and preferably H-shaped, a flat intermediate portion (10c) of which forms the bottom of at least one groove (14a, 14b) that is adapted for maintaining at least one insulating panel (3) such as a VIP panel substantially in parallel to a plane (P) of the substrate in the mounted state of the supporting profile (10); and

   - means (13b, 15) for fastening and guiding the mobile strutting device (20) outside of said groove (14a, 14b), intended to provide, after mounting of the mobile strutting device, a movement of translation of the mobile strutting device in parallel to said longitudinal axis (A).
2. Kit according to claim 1, wherein said fastening and guiding means (13b, 15) comprise a single base substantially of the same length as the length of the supporting profile (10).
3. Kit according to claim 1 or 2, wherein said fastening and guiding means (13b, 15) comprise a slot (16) narrower than said groove (14a, 14b), said fastening member (22) comprising:

   - a flange (22a); and

   - a male connection element (21) protruding from the flange (22a) and intended to be inserted into the slot (16).
4. Kit according to any one of the previous claims, wherein said flat intermediate portion (10c) is part of an H-shaped section and defines a median plane (P10) of symmetry of the supporting profile (10).
5. Kit according to any one of claims 1 to 4, wherein the supporting profile (10) is made from one piece, while each of the mobile strutting devices (20) comprises two pieces (30, 40).
6. Kit according to any one of claims 1 to 4, wherein the supporting profile (10) comprises at least two pieces, one of which comprises an anchoring rail (15) that extends in parallel to the longitudinal axis (A).
7. Kit according to any one of claims 1 to 5, wherein the supporting profile (10) comprises a flat branch (10b) extending between two free edges parallel to the longitudinal axis (A), transversely with respect to the intermediate portion (10c), said fastening and guiding means (13b, 15) being formed on the flat branch (10b) of the supporting profile (10) and comprising an anchoring rail (15) that extends in parallel to the longitudinal axis (A) and is distant from each of the two free edges.
8. Kit according to any one of the previous claims, wherein one out of the strutting element (30) and the retention element (40) comprises a duct (40a) and the other out of the strutting element and the retention element comprises a member (28) for insertion into said duct allowing removable fastening between the strutting element and the retention element.
9. Use of the mounting kit according to any one of claim 1 to 8, characterised in that the supporting profile (10) is fastened directly onto the substrate.
10. Use of the mounting kit according to any one of claim 1 to 8, characterised in that the retention element (40) is fastened to a profile (5) distant from the supporting profile (10) by a movement of rotation of the retention element about an axis (Y-Y') perpendicular to the plan (P) of the substrate until a blocked relationship of the retention element (40) on the strutting element (30) is achieved.
11. Profile (10) for supporting insulating panels (3), intended to support a mobile strutting device (20) in a lining, the supporting profile being elongated along a longitudinal axis (A) and formed from a single piece, characterised in that it comprises:

    - a rear branch (10a) that defines a rear transverse face (13a);

    - a front branch (10b) that defines a front transverse face (13b);

    - a section that is U-shaped, and preferably H-shaped, a flat intermediate portion (10c) of which having a constant thickness forms the bottom of one or two grooves (14a, 14b) each adapted for maintaining at least one insulating panel (3) between the rear branch (10a) and the front branch (10b), each groove (14a, 14b) being defined between the rear branch (10a) and the front branch (10b);

    - an anchoring rail (15) protruding towards the front from the front transverse face (13b), for the fastening and the guiding of the mobile strutting device (20) outside of said first groove (14a, 14b), the anchoring rail being intended to provide, after mounting of the mobile strutting device, a movement of translation of the mobile strutting device (20) in parallel to the longitudinal axis (A).
12. Profile (10) for supporting insulating panels according to claim 11, wherein there is a single anchoring rail (15) and it is substantially of the same length as the supporting profile (10), the anchoring rail defining a slot (16) that is preferably narrower than said groove (14a, 14b) and opens towards the front.
13. Profile (10) for supporting insulating panels according to claim 11 or 12, wherein the intermediate portion (10c) is part of an H-shaped section and extends between a large branch of the H-shaped section that defines the rear transverse face (13a) and a small branch of the H-shaped section that defines the front transverse face (13b), said supporting profile being made from a plastic material having a conductivity of less than 0.6Wm^-1K^-1, and preferably less than or equal to 0.2Wm^-1K^-1.
14. Profile (10) for supporting insulating panels according to any one of claims 11 to 13, wherein the intermediate portion (10c) of the supporting 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 anchoring rail (15) defining at least one housing, the anchoring rail comprising at least one retaining projection (24, 25) formed on 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 mobile strutting device (20).
15. Profile (10) for supporting insulating panels according to any one of claims 11 to 14, wherein the anchoring rail (15) has parallel tabs (15a, 15b) capable of moving away from one another by elastic deformation in order to allow frontal insertion of the strutting device (20), according to a movement of translation substantially perpendicular to the front transverse face (13b) of the supporting profile (10).

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