Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F13/00—Coverings or linings, e.g. for walls or ceilings
  • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
  • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
  • E04F13/0801—Separate fastening elements
  • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
  • E04F13/0805—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall
  • E04F13/0807—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall adjustable perpendicular to the wall
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F13/00—Coverings or linings, e.g. for walls or ceilings
  • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
  • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
  • E04F13/0801—Separate fastening elements
  • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
  • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F13/00—Coverings or linings, e.g. for walls or ceilings
  • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
  • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
  • E04F13/0801—Separate fastening elements
  • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
  • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
  • E04F13/083—Hooking means on the back side of the covering elements

Definitions

• Kit for fixing a wall lining suitable for holding PIV panels and associated support profile
• 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) having 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.
• 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.
• 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 m W m -1 K -1 .
• 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).
• 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);
• 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 includes a plurality of bracing devices and has:
• bracing piece consisting of a threaded rod ending in a wall connecting plate
• 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 of clipping to cooperate with the wings of return of the fur.
• 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.
• 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.
• the present invention is intended to overcome all or part of the aforementioned drawbacks.
• a mounting kit for maintaining profiles at a given distance from a substrate, in particular a wall to be doubled 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;
• Means for fixing and guiding the mobile bracing device intended to ensure, after mounting the mobile bracing device, a translational movement of the movable bracing device parallel to the longitudinal axis .
• the insulating panels for example PIV type
• the insulating panels 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.
• 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 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) ;
• 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.
• 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.
• 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.
• 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 front branch which defines a front transverse face
• 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.
• 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).
• 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.
• 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 guarantees 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 standard PIV elementary panels.
• 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.
• an insertion element for example and in a non-limiting manner, a detent pin
• FIG. 1 shows schematically 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;
• FIG. 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
• FIG. 8 is a perspective view showing a corner bracket used for connecting two layers of PIV panels arranged at substantially 90 °.
• 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 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 in Figure 1 and a rear face F2 ( Figure 2) opposite to the front face F1.
• the insulating core 3a, porous, of the panel 3 is evacuated and enclosed in the sealed barrier envelope 3b which is preferably flexible.
• FIG. 1 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.
• 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 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 else of the inter portion mediator 10c being more extensive (forming a wider side of the support profile 10) than the front branch 10b located on the side of the outer face 8.
• 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.
• 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 profiles 1 1, 12 optional 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.
• 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 .
• a rather abrupt degradation of the performance of the panel layer 3 has been noted when this gap reaches or exceeds 4 mm.
• 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.
• the gap between the panels 3 (adjacent layers) is reduced 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.
• 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 sufficient rigidity to withstand twisting forces after connection to the wall P1.
• the support profiles 10 and any other profiles 1 1, 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 profiles 10, 1 1, 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.
• 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.
• 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.
• 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.
• 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 bracing member 30 and a holding member 40.
• This mounting system allows the connection of the profiles 5 of the secondary frame 4 to the support profiles 10 and possibly the profiles 1 1 -12 of the primary frame 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).
• 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 profiles 5, here vertical, kept spaced at a distance D2 from the panel layer 3 with the aid of spacer devices 20.
• the devices of FIG. bracing 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.
• H1 which coincides with the junction between two parallel rows of the panel layer 3.
• the profiles 1 1, 12 may have a section W with a function of spacing and maintenance profiles 5.
• the wall P1 generally defines a plane P and it is understood that the panel layer 3 extends parallel to the plane P in the mounted state or 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.
• 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.
• this rear transverse face 13a forms a bearing face which can be directly fixed to the wall P1.
• 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.
• the intermediate portion 10c form of course the bottom of a single groove 14a.
• 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 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 H 1.
• the rear branch 10a of the U-section or H-section support profile 10 is fastened to the wall by means of screws V or similar rigid fastening members of the primary framework 2.
• the section sections 1 1 and 12 U as shown in Figure 2 can be fixed similarly to the floor 60 and the ceiling 70.
• the attachment can be made with a gap left between the wall P1 and the panel layer 3, especially when the rear branch 10a is generally concave on the side of the wall P1 and has one or more faces (s) of support remote from the intermediate portion 10c.
• the first row R1 of panels 3 is then formed by interlocking the panels 3 tightly in the groove 14b.
• 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.
• 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.
• 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.
• the panel 3 can snap-fit between the vertical branches 10a, 10b of the profile 1 1 being protected by the compressible foam layer.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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, screwing through the rear branch
• the angle plate 55 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 joining system 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.
• 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.
• the tray 55 may be located at the upper end when approaching the ceiling 70, for the highest row.
• 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.
• 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.
• the attachment device here in the form of the anchoring rail 15, extends the H-section support profile 10 in the direction of the shortest dimension of the three dimensions of the This shorter dimension is, for example, less than the axial length of the spacer element 30.
• 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 sealed barrier envelope 3b of the panel layer 3.
• FIGS. 1 to 3 are very clearly seen. 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.
• 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.
• the rear axial end 20a may have a clamping function, for example with a jaw or a clamping rail coming to engage the base.
• 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.
• the tabs 15a, 15b extend parallel on either side of a plane P10 including the intermediate portion 10c plane.
• 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.
• 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.
• 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. bracing 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 can be seen in FIG.
• 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 connection member 21 has a sectional transition (with a sectional narrowing) at the rear of this snap-on tip 23, so that two opposite lugs 21a, 21b are formed transversely to the direction of rotation. snap.
• 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.
• 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 projections 24 and 25 are then placed in the grooves G1, G2 and engaged respectively on the lugs 21a, 21b (here with axial abutment effect) so as to prevent any displacement in the opposite direction.
• the areas of contact with the support profile 10 respectively defined by the front surfaces S1, S2 of the flanks T1, T2 and the lugs 21a, 21b are of comparable or identical extent (for example extended over 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 snap direction, 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 latching configuration shown in FIGS. 2 and 3.
• 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.
• 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.
• 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 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.
• 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.
• the bracing member 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 fixing member 22.
• the outer surface of the rod portion 28 is notched for most of its length.
• the rod portion 28 comprises rows of notches 28a, 28b separated by grooves 29.
• 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.
• 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.
• 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 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.
• 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 spacer element 30.
• the notches 41a, 41b are distributed in two diametrically opposite zones separated by bore zones 41c, as can be seen in FIG.
• 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.
• 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.
• 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.
• the duct 40a with the internal toothed surface may alternatively be provided in a pivot 44 engaged on the anchor rail 15 or on a similar attachment device of the support profile 10.
• the portion of 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.
• the section 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 wings 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.
• 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.
• 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.
• the side walls 40b, 40c are shifted as shown in FIG. 3 and 4A and the flat base 400 may then optionally have two complementary angles A1, A2, one of which is greater than 100 ° (for example from order of 120 °) and the other is less than 80 ° (for example of the order of
• 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. .
• 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.
• 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.
• Figure 2 illustrates the state of engagement of the holding element 40 in the section 5, with simultaneous locking of the spacer member 30.
• 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.
• 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 face F4 (as shown in Figures 4B and 5) which facilitates the decision between the thumb and the index finger.
• 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).
• 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.
• 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 bottom surface 60 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.
• 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;
• 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 engagement of the notches 41a, 41b in the rows of notches 28a, 28b of the spacer element 30, so that the desired position for the section 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.
• 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.
• 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.
• 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.
• the insertion movement in the duct 40a is easy and a rotation of about a quarter turn allows the blocking between these two parts.
• 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.
• 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 prevents contact of the rod portion 28 with the bottom portion 51 of the profile 5.
• 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. 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.
• it may be provided to double the grooves with an axial offset.
• 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.
• 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.
• 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.
• 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.
• 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.
• a lever may be provided to actuate the rotation of this fastener 22.
• 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.
• 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.
• 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).
• thermal insulation system 1 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.
• 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).

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