False wall frame profile and finishing cover

Abstract

Assembly comprising a profiled element (1) of a false wall frame with stretched canvas, the profiled element (1) comprising an upper wall and a side wall (6), the assembly comprising a finishing cover (70) capable of being removably mounted on the side wall of the profiled element, the finishing cover being, in the mounted position on the profiled element, resting on the upper wall, the side wall comprising a groove (20) for mounting an edge of stretched canvas, this mounting groove having an opening oriented towards the outside of the profiled element, the finishing cover being, in the mounted position on the profiled element, resting on a partition (24) internal to the mounting groove of the edge of stretched canvas. Figure 6

Description

Title of the invention: False wall frame profile and finishing cover

[0001] The invention relates to the technical field of false ceilings and stretched false walls.

[0002] False ceilings and stretched false walls have been known for a long time. Reference may be made, for example, to documents CA835014 (Barracudaverken, 1970), FR2078579 (Blick, 1971).

[0003] False ceilings and stretched false walls are formed by mounting at least one canvas on a frame.

[0004] The frame can be fixed directly to the walls of a room, for example by screwing. The canvas can then be large in area, and be formed by assembling strips.

[0005] False walls and false ceilings are also known comprising slabs or boxes, comprising at least one canvas mounted on a frame of rails.

[0006] When the false ceiling or false wall is in the form of slabs, the frame can be contained or bagged in an envelope formed by the canvas.

[0007] Slabs formed from canvases attached to a frame are also known, see for example FR1319171 (Isora, 1963), US3460299 (Wilson).

[0008] The vast majority of stretched false ceilings are mounted with their canvas stretched horizontally in its entirety. In certain embodiments, the canvas being stretched on a horizontal frame, deformations of the stretched sheet are applied, as described in documents FR1515260 (Saulnier, 1968) or EP281468 (Scherrer, 1988).

[0009] The fabrics of false ceilings or stretched false walls are most often made of deformable flexible polymer, in particular polyvinyl chloride. By deformable, we mean here the possibility of stretching these fabrics, by manual effort. We also know stretched false ceilings and stretched false walls comprising a fabric that is not very deformable, in particular fabric, or coated fabric, for example by calendering.

[0010] The means of mounting the edges of canvases on a stringer frame are very varied.

[0011] In a first family of means for mounting the edges of the canvas on the frame of smooth, the edge of the canvas includes a strip of added material, with a hook-shaped section.

[0012] In this first family and according to a first type of embodiment, the rail has a U-shaped groove and one of the two walls of the U-shaped groove of the rail has a lip facing the bottom of the groove, the hook-shaped fabric edge being positively anchored on this lip. Reference may be made, for example, to document FR1303930 (Barracudaverken, 1962).

[0013] In this first family and according to a second type of embodiments, the smooth has a U-shaped groove and one of the two walls of the groove of the rail includes a shoulder, the part located towards the bottom of the groove of which forms a support for the edge of the hook-shaped canvas. Reference may be made, for example, to documents FR1475446 (Licentia, 1967), FR2002261 (Barracudaverken, 1969), EP338925 (Scherrer, 1989), FR2843141 (Mphi, 2004).

[0014] In this first family and according to a third type of embodiment, the rail has a U-shaped groove and each of the two walls of the groove of the rail has a shoulder, the edge of the canvas being in the form of a double hook. Reference may be made, for example, to document FR2486127 (Allemann, 1982).

[0015] In this first family and according to a fourth type of embodiment, the rail comprises a rigid lip on which the edge of the canvas is attached. Reference may be made, for example, to document FR2786515 (Newmat, 2000).

[0016] In a second family of means for mounting the edges of the canvas on the stringer frame, the canvas is pinched.

[0017] In this second family and according to a first type of embodiment, the canvas is pinched by the rail against a wall. Reference may be made, for example, to documents FR2715682 (Hosteing, 1995), FR2734296 (Ringaud, 1996).

[0018] In this second family and according to a second type of embodiment, the rail is provided with means forming a clamp for installation and tension. Reference may be made, for example, to document FR2699211 (Swal, 1994).

[0019] In a third family of means for mounting the edges of the canvas in the frame of rails, the edge of the canvas is provided with a rod, generally of round section, which is housed with friction in a groove of the rail. Reference may be made, for example, to document FR1588150 (Pecault, 1970).

[0020] Various mounting means have been proposed in the prior art, for the installation of stretched false wall slabs, on a civil engineering structure such as a ceiling.

[0021] Most often, the slabs are supported on an L-shaped or T-shaped support, comprising a vertical core and a horizontal flange which extends at right angles to a lower end of the core, this flange defining a laying plane for the slabs. The slabs then form a false ceiling similar to a conventional suspended false ceiling. Reference may be made, for example, to documents EP2961897 (Newmat, 2016), EP2313574 (Newmat, 2011), FR3112564 (Texaa, 2022), FR2793506, FR2793504, FR2789101 (Scherrer, 2000).

[0022] There is a demand, particularly from architects, for slabs spaced apart from each other.

[0023] The invention relates more particularly to false ceilings and stretched false walls comprising such tiles, making it possible to break the monotony of false ceilings or false flat walls extending over very large areas.

[0024] The slabs known from the prior art have drawbacks.

[0025] In particular, the lateral edge of the tiles has an opening in which a canvas mounting means is housed, and this opening is only hidden from view if the tiles are mounted edge to edge. Reference may be made, for example, to documents WO2019 / 229157 (Kvadrat soft cells, 2019), WO2018 / 007856 (Kvadrat soft cells, 2018), DE102015113787 (Sefar, 2016).

[0026] It has been proposed, in the prior art, to add a part forming a cover, to hide from view the opening containing the means for mounting the canvas, the finishing cover being assembled by elastic fitting. Reference may be made, for example, to documents DE20319808U (LK Luftqualitat, 2004), FR3103837 (Normalu, 2021).

[0027] Elastic fitting is a method of assembly by elastic deformation, the cover finishing comprising a projection, forming a male part of the assembly, the profile comprising a groove, forming a female part of the assembly.

[0028] Elastic fitting of a finishing cover on a false ceiling tile frame has several defects.

[0029] Firstly, when the assembly is rigid, dismantling the finishing cover is difficult, tiring, or even impossible. Conversely, if the assembly is not very rigid, there is a risk of unforeseen, untimely dismantling of the finishing cover, particularly when the finishing cover helps to hold a canvas in the slab.

[0030] Secondly, for the installation of the finishing cover, the elastic fitting involves the application of a lateral force, perpendicular to the side of the slab frame. This maneuver is difficult when the slab is at a great height or is of large dimensions. This maneuver is impractical when the side of the slab frame is at a short distance from a wall such as a wall.

[0031] Thirdly, no means are provided to facilitate the disassembly of the finishing cover. The finishing covers of the state of the art are provided with a smooth surface, without roughness, and do not offer any grip for grasping.

[0032] Document FR3077082 (Normalu) describes a metal frame profile for a stretched canvas, the profile comprising an inclined side wing, the peripheral edge of the canvas carrying a metal flat, the fixing of the canvas on the profile being obtained by screwing the flat onto the side wing, the canvas being clamped between the side wing of the profile and the flat. The flat and the side wing are free of holes and the profile comprises a chamber for collecting the shavings produced when screwing the flat onto the side wing. A finishing cover covers the entire height of the frame profile and is mounted on the frame by hooking.

[0033] The profile described in document FR3077082 has many drawbacks. In particular, the installation of the finishing cover is inconvenient, and its lifting is difficult, even impossible. The chip collection chamber, affixed to the fixing wing, makes the profile heavier. The profile comprises a square section whose internal wall has a right-angle groove, this square section extending over a large width towards the inside of the slab. The profile is therefore unsuitable for the production of luminous slabs, the square section of the profile forming an inelegant shadow on a translucent canvas. The profile is only intended for fixing a canvas without means of attachment, in particular a fiberglass textile canvas. The profile is therefore unsuitable for the installation of canvases, for example made of polyvinyl chloride, provided with a hook-shaped edge, harpoon, or provided with a bead. The profile only allows the fixing of a single canvas, and does not provide the possibility of creating a double-skin slab, comprising two stretched canvases.

[0034] Document EP3044390 (Normalu) describes a metal profile comprising, in the lower part, a groove in which a loop provided on the periphery of a canvas is housed. The profile comprises, in the upper part, a groove in which a metal stiffener is snapped.

[0035] The profile described in document EP3044390 has numerous drawbacks. In particular, the installation of the metal stiffener is difficult, and its removal is difficult, if not impossible. The profile is envisaged for mounting by resting on an L-shaped angle iron, the profile not comprising means allowing its attachment in suspension, for example by cables.

[0036] Document FR3074822 (Normalu) describes a profile in two separate parts, assembled to each other by a third connecting part. A surplus of fabric made of textile or non-elastic material is pinched in a groove of the profile, by a retaining element. In the only embodiment shown schematically, the retaining element is a part of a finishing cover.

[0037] The profile described in document FR3074822 has many drawbacks. In particular, the profile is formed by assembling three separate parts, complicating and increasing its manufacturing cost. The installation of the finishing cover is inconvenient, and its removal is laborious, if not impossible.

[0038] In prior art stretch ceiling frames, the rails are conventionally designed according to the means of assembling the canvas edge. This results in a very wide variety of rails, all specifically dedicated to a method of mounting the canvas edge.

[0039] This state of affairs has many disadvantages.

[0040] The rapid supply of a wide variety of profiles leads to complications in terms of stock management or logistics. These complications are further increased by the fact that the choice of a false stretch ceiling or a false stretch wall also means a choice of canvas.

[0041] However, there is a wide variety of canvases, in terms of colors and finishes (notably marbled, satin, matte, mirror finish).

[0042] Manufacturers must prepare the canvases by adding the necessary edging for their assembly to the chosen profile, for example, edging in the form of a single hook, double hook, or bead. An error in the installation of the canvas edging can make the canvas unusable with the chosen profile.

[0043] The invention aims to overcome the drawbacks of the devices proposed in the prior art.

[0044] A first object of the invention is to provide a false ceiling slab structure with stretched canvas, in which the canvas mounting means are hidden from view by a cover, the mounting and dismounting of the cover being easy and quick.

[0045] Another object of the invention is to provide a false ceiling slab structure with stretched canvas, the slab having a small thickness and allowing the mounting of different types of canvas, the canvases being able in particular to be of the flexible deformable type, or of the substantially non-deformable type.

[0046] For these purposes, the invention relates, according to a first aspect, to an assembly comprising a profiled element of a false wall frame with stretched canvas, the profiled element comprising an upper wall and a side wall, the assembly comprising a finishing cover capable of being removably mounted on the side wall of the profiled element, the finishing cover being, in the mounted position on the profiled element, resting on the upper wall, the side wall comprising a mounting groove for an edge of stretched canvas, this mounting groove having an opening oriented towards the outside of the profiled element, the finishing cover being, in the mounted position on the profiled element, resting on a partition internal to the mounting groove of the edge of stretched canvas.

[0047] The finishing cover is thus in double support on the profiled element: a first support on the upper wall and a second support on the internal partition at the mounting groove of the edge of the stretched canvas.

[0048] In certain implementations, these supports are simple supports, the support transmitting the forces in only one direction, and the holding in position of the finishing cover on the profiled element is obtained for example by the presence of a hook on the finishing cover, this hook coming to bear and cap the partition.

[0049] In certain implementations, the supports of the finishing cover on the profiled element are ensured with friction.

[0050] According to various embodiments, the assembly has the following provisions, possibly combined.

[0051] Advantageously, a space is formed between the lower edge of the finishing cover and the lower end part of the profiled element. This space facilitates the handling of the finishing cover, for its possible removal.

[0052] Advantageously, the finishing cover comprises a hook-shaped upper part. In certain implementations, the hook-shaped upper part is housed in a reservation provided in the profiled element.

[0053] Advantageously, the finishing cover comprises a lower hook. In certain implementations, the finishing cover is supported, by its lower hook, on the internal partition of the stretched canvas mounting groove.

[0054] Advantageously, the lower hook comprises a core and two wings.

[0055] In some embodiments, the finishing cover comprises an outer portion carrying an upper hook, a lower hook, and at least one projection between the upper hook and the lower hook.

[0056] For example, the finishing cover comprises a rigid external part, the projection being made of elastically deformable material and being attached to the rigid external part of the finishing cover, or being produced by bi-material injection with the external part of the finishing cover.

[0057] Advantageously, the opening of the mounting groove is delimited, in the upper part, by an inclined edge. This arrangement facilitates the rotational movement of the finishing cover, relative to the profiled element, during assembly or disassembly of the finishing cover.

[0058] Advantageously, a flat is fixed to the partition, a canvas edge being clamped between the flat and the partition, the internal face of the mounting groove delimiting with the partition a cavity for receiving material debris coming from the fixing of the flat to the partition. The material debris is thus contained in the cavity and does not come into contact with the stretched canvases. Before mounting the flat, the partition and the flat are advantageously devoid of passage holes for fixing means such as screws or rivets.

[0059] In various embodiments, the profiled element, when viewed in cross-section, is inscribed within a generally triangular, square or rectangular contour.

[0060] In particular embodiments, the profiled element has a right-angled triangle section, an internal wall connecting the upper wall to the side wall, the internal wall comprising an internal recess for mounting an edge of stretched canvas.

[0061] Advantageously, the upper wall comprises a recess for mounting an edge of stretched canvas.

[0062] Advantageously, the upper wall comprises a recess provided with a groove, the finishing cover comprising a projection which fits into this groove, in the mounted position of the cover on the profiled element.

[0063] The invention relates, according to a second aspect, to a framework for the realization of a false wall comprising an assembly as presented above.

[0064] The invention relates, according to a third aspect, to a false wall such as a slab, in particular an acoustic slab, a luminous slab, for a false wall or a false ceiling, comprising an assembly as presented above, and at least one slab stretched over a frame.

[0065] The invention also relates to a method of mounting a finishing cover on an assembly as presented above.

[0066] Other objects and advantages of the invention will appear in the light of the description of embodiments, given below with reference to the appended drawings in which:

[0067] [Fig-1] is a cross-sectional view of a false wall profile, according to one embodiment;

[0068] [Fig.2] is a view similar to [Fig.l], a canvas being mounted on the profile;

[0069] [Fig.3] is a view similar to [Fig.l], a canvas being mounted on the profile, the slab thus formed being provided with a means of acoustic absorption and / or thermal insulation;

[0070] [Fig.4] is a view similar to [Fig.l], a canvas being mounted on the profile, the slab thus formed being provided with lighting means;

[0071] [Fig.5] is a view similar to [Fig.l], a canvas being mounted on the profile, a finishing cover being reported, the cover hiding the means of mounting the canvas on the profile;

[0072] [Fig.6] is a view similar to [Fig.5], the slab comprising two stretched canvases;

[0073] [Fig.7] is a cross-sectional view of a finishing cover, according to a method of realization ;

[0074] [Fig.8] is a cross-sectional view of the assembly formed by a profile and a finishing cover for the profile, the cover being shown in the mounted position on the profile, and in two intermediate mounting or dismounting positions on the profile.

[0075] In the following text, the expression and / or designates three possibilities, namely the alternative (or) and the combination (and).

[0076] The attached figures show profiled elements 1, seen in section. For the sake of simplicity, in the remainder of this description, the profiled elements 1 are referred to as profiles 1.

[0077] To facilitate reading, we define in [Fig.l] an orthogonal XYZ reference frame comprising three axes perpendicular two by two, namely: an X axis, defining a horizontal direction, a Y axis, defining a vertical direction, which with the X axis defines a vertical XY plane, and a Z axis, perpendicular to the XY plane.

[0078] In the remainder of this description, the terms “horizontal”, “vertical”, “top”, “bottom”, “high”, “low”, “upper”, “lower”, “upper”, “lower” are used in reference to this XYZ reference frame, without this implying any limitation in the orientation that profile 1 can take during use.

[0079] Thus, for example, the profile 1 can be used for the creation of false ceilings, and carry one or more canvases stretched substantially horizontally, as shown in Figures 2 to 6.

[0080] The profile 1 can be used for the construction of false walls, and carry one or more stretched canvases extending substantially vertically.

[0081] The profile 1 can also be used for the creation of false walls, and carry one or more canvases extending along a plane forming any angle with the vertical.

[0082] In the remainder of this description, only a portion of the edge of each canvas is shown mounted on a profile 1.

[0083] It is understood that the profile 1 is advantageously used for the production of a slab or box frame, the slab or box being for example mounted suspended from a ceiling, or even fixed to a civil engineering wall (such as a wall, or a partition).

[0084] In the figures, the profile 1 is shown in section.

[0085] It is understood that the profile 1 can be produced in the form of a slender rectilinear section extending in the Z direction, perpendicular to the XY plane of the figures. The profile 1 thus allows the production of square or polygonal slabs, or can be fixed, by one of its lateral sides, to the walls of a room.

[0086] In other implementations, the profile 1 is curved, allowing the production of contour slabs comprising at least one curved section, for example a circular or oval contour, these slabs being for example suspended.

[0087] The profile 1 may be made of polymer material, in particular rigid polyvinyl chloride or ABS (acrylonitrile butadiene styrene). By rigid, we mean here the fact that the profile cannot be stretched or plastically deformed by manual force.

[0088] In other implementations, the profile 1 is made of composite material, in particular with a fiber-reinforced polymer matrix.

[0089] In a particular implementation, the profile 1 is made of polymer material with glass fiber or plant fiber reinforcement, such as for example flax fiber. This arrangement makes it possible to achieve high mechanical resistance per linear meter of profile.

[0090] The profile 1 can be made of metallic material, in particular aluminum alloy.

[0091] Advantageously, the profile 1 carries a coating, for example obtained by lacquering, thermo-lacquering, or painting.

[0092] This coating provides protection against corrosion and makes cleaning easier.

[0093] In certain implementations, this coating advantageously provides an effect visual. In some specific implementations, the coating is reflective, particularly on the inside of the profile. In other implementations, the coating behaves like a black body and absorbs incident light. Depending on the desired aesthetic effects, some parts of the profile may be provided with a light-reflecting coating, and other parts of the profile may be provided with a light-absorbing coating.

[0094] The profile 1 can be cut, by means known per se, to the desired length, and the profile sections can be assembled together, in particular by fishplates or brackets.

[0095] The profile 1 is advantageously produced by extrusion or pultrusion.

[0096] In certain embodiments, the profile 1 is in the form of a hollow body, the profile 1 comprising an internal space 2.

[0097] In other embodiments, the profile comprises several internal spaces each forming a box. These arrangements make it possible to obtain a profile of great rigidity and moderate weight.

[0098] In other embodiments, the profile is devoid of internal spaces forming a box. This arrangement can be advantageous when the material used for the manufacture of the profile has good properties in terms of carbon footprint (or life cycle analysis LCA), but does not have good mechanical properties.

[0099] Profile 1 forms the edge of the volume of a false wall slab, for example a false ceiling or false wall slab.

[0100] In the embodiments shown, when viewed in cross-section, the profile 1 is inscribed in a generally triangular-shaped contour. The profile thus comprises an upper face, an external lateral face and an internal lateral face. The terms “internal”, “external” are used in reference to the volume bordered by the slab frame.

[0101] In other embodiments, not shown, when viewed in cross-section, the profile is inscribed in a contour of generally square or rectangular shape.

[0102] The profile 1 advantageously comprises housings, recesses, grooves, and grooves opening on each of the faces of the profile. These arrangements allow the mounting of at least one canvas on the profile, and allow the mounting of brackets and fishplates, as will be described later in more detail.

[0103] These arrangements may also allow, where appropriate, the passage of wired elements, for example for low current.

[0104] In the embodiments shown, the sheets or canvases 3 are shown in the form of solid strips of small, substantially constant thickness.

[0105] It is understood that each canvas or sheet 3 may be solid or not, for example provided with perforations, or microperforations.

[0106] The microperforations can provide acoustic attenuation, as described in document WO01 / 71116 (Newmat). Alternatively, the sheet or canvas can be provided with opening perforations visible to the naked eye.

[0107] In certain implementations, the canvases or sheets 3 are made of deformable material, such as polyvinyl chloride, for example translucent, matt, lacquered or satin.

[0108] In advantageous implementations, the fabrics or sheets 3 are made of polyester, coated polyester (for example coated with polyurethane), impregnated polyester (for example impregnated with polyvinyl chloride), or thermoplastic fluoropolymer such as ethylene tetrafluoroethylene (ETFE).

[0109] In other implementations, the canvases or tablecloths are made of fabric, in particular cotton fabric, linen fabric.

[0110] In the embodiments shown, the profile 1 has a generally triangular section, in the form of a right triangle.

[0111] By “generally triangular in a right triangle” is indicated here that the external contour of the profile 1 is inscribed in a triangle comprising a right angle.

[0112] As shown in [Fig. 3], in certain embodiments, the slab comprises a frame formed by assembling sections of profile 1, a sheet 3 being mounted on the frame, and the slab comprises a block 4 of insulation.

[0113] The term “insulation block” here refers in particular to a plate or sheet of material having sound insulation or thermal insulation properties, these properties being combined where appropriate. The insulation block comprises, for example, glass wool, rock wool, a polyurethane (in particular foam). Advantageously, the insulation block comprises a bio-sourced material such as wood wool, cellulose wadding.

[0114] In the embodiment shown in [Fig. 1], the profile 1 comprises an upper wall 5, forming a substantially horizontal face, an external side wall 6, forming a substantially vertical face, and an internal wall 7, forming a face inclined relative to the vertical.

[0115] The term “wall” is used here to designate a section, a flank of the profile, each wall forming a part of the perimeter of the profile 1 seen in section.

[0116] In the embodiment shown, the upper wall 5 is provided with a groove 8, with an upwardly facing opening, intended for the mounting of connecting means, of the fishplate or fixing bracket type.

[0117] In an advantageous implementation, an assembly bracket 9 is housed in the groove 8, this bracket 9 allowing the profile 1 to be mounted suspended from a ceiling, for example using cables or a threaded rod.

[0118] In the embodiment shown, the internal wall 7 comprises an upper groove 10, an internal recess 11, and a lower groove 12. The opening of the two grooves 10, 12 and the opening of the internal recess 11 are oriented horizontally, towards the interior of the volume of the slab delimited by the profile 1.

[0119] Advantageously, the internal recess 11 allows the mounting of a canvas border provided with a hook or a harpoon.

[0120] The upper groove 10 allows the mounting of a support bracket 13, on which a block 4 made of insulating material can be placed.

[0121] The lower groove 12 allows the mounting of connecting means, of the fishplate or fixing bracket type.

[0122] In the embodiment shown, the upper wall 5 comprises an upper recess 14, opening upwards.

[0123] In certain implementations, the upper recess 14 advantageously allows the mounting of a canvas border without any attachment means.

[0124] The pinching of the canvas edge is advantageously obtained by a means added, in a removable manner, in the upper recess 14, for example an insert 15, in particular made of silicone.

[0125] In other implementations, a canvas edge carrying a bead is forced into the upper recess 14. The canvas edge is for example provided with a silicone bead, for example sewn onto the canvas. The bead has a section complementary to that of the upper recess 14.

[0126] The side wall 6 comprises a groove 20 for mounting a canvas edge, this groove advantageously having a large opening.

[0127] In certain embodiments, not shown, the side wall 6 of the profile 1 comprises two canvas edge mounting grooves, or more than two canvas edge mounting grooves.

[0128] In the embodiment shown, the opening of the groove 20 extends substantially over half the height of the profile 1. The opening of this groove 20 is oriented towards the outside of the profile 1.

[0129] The opening of the groove 20 is delimited, in the upper part, by an edge 21 of a substantially vertical strip 22.

[0130] The edge 21 advantageously has an inclination relative to the horizontal, of the order of a few degrees, for example less than 20°. In certain implementations, the edge 21 is inclined by 10° relative to the horizontal.

[0131] The opening of the groove 20 is delimited, in the lower part, by a support edge 23, formed in the lower extreme part of the profile 1.

[0132] The bearing edge 23 advantageously forms a substantially horizontal bearing face, for a canvas mounting means, as will appear more fully in the rest of this description.

[0133] The groove 20 contains a partition 24, extending over a portion of the height of the groove 20.

[0134] In the embodiment shown, this partition 24 is solid, and devoid of a passage hole for fixing means such as screws or rivets.

[0135] Starting from the bearing edge 23 and running around the perimeter of the partition 24, four segments 25-29 can be distinguished.

[0136] A first segment 25, substantially flat, is inclined relative to the vertical, by an angle of a few degrees, for example 6°.

[0137] The length of this first segment 25 is for example of the order of 25 mm.

[0138] A second segment 26, substantially flat and horizontal, extends in the groove 20 over a length corresponding to the thickness of the partition 24, for example 3 mm.

[0139] A third segment 27, substantially vertical, extends in the groove 20 over a few millimeters, for example 5 mm.

[0140] A fourth segment 28, substantially flat, extends for example over a distance of the order of 10 mm.

[0141] In the embodiment shown, the fourth segment 28 is substantially parallel to the first segment 25.

[0142] The partition 24 limits, with the internal face 29 of the groove 20, a cavity 30 with an opening oriented upwards.

[0143] For information, profile 1 has a height of 60 mm and a width of 30 mm.

[0144] In the embodiment shown in [Fig. 1], starting from the lower end part 31 of the profile 1, the internal wall 7 comprises a rounded part 32, a first inclined section 33, a second inclined section 34 and a third substantially vertical section 35.

[0145] In the embodiment shown in [Fig.l], the lower groove 12 has its opening in the second inclined section 34, the upper groove 10 and the internal recess 11 having their openings in the third section 35.

[0146] In the embodiment shown, the first inclined section 33 forms an angle of the order of 50° with the horizontal, and the second inclined section 34 forms a higher angle, of the order of 65° with the horizontal. These arrangements are advantageous when the profile 1 is used in a luminous panel, as shown in [Fig.4]. The profile 1 remains discreet, when the profile 1 forms the frame of a luminous panel comprising lighting means 43 and a translucent sheet 41, for example made of polyvinyl chloride.

[0147] In the embodiments shown, the profile 1 comprises an upper recess 14 in the upper wall 5 and an internal recess 11 in the internal wall 7, the upper recess 14 forming a U-shaped section hollow for receiving an insert sewn or not on an edge of canvas, the internal recess 11 forming a U-shaped section hollow with a shoulder 16 for receiving a canvas edge in the shape of a hook or harpoon.

[0148] In other embodiments, not shown, the profile 1 comprises more than two recesses forming grooves for receiving the edge of the canvas, in the upper wall 5 and / or in the internal wall 7.

[0149] In the profile, each groove for receiving an edge of canvas is advantageously adapted to a means for mounting canvas on the profile.

[0150] When the edge of the canvas comprises a hook-shaped element, advantageously this hook bears on a receiving strip internal to a groove, which forms a shoulder or bearing surface, and the tension of the canvas ensures a second support of the hook against a vertical wall of the groove. Alternatively, the receiving strip is an inclined lip on which the edge of the canvas in the form of a hook is hooked. Alternatively, the groove comprises two receiving strips and the edge of the canvas is in the form of a double hook, each of the hooks bearing on one of the receiving strips. Alternatively, the groove comprises two inclined lips and the edge of the canvas has the form of a double hook, each of the hooks being hooked on one of the lips.

[0151] Each of the recesses forming a groove for receiving the edge of the canvas may be in the form of a groove in which a canvas edge is pinched. This arrangement is advantageous, the canvas edge not comprising any added element such as a hooked or harpoon section strip.

[0152] In the embodiment of [Fig.2], a sheet 3, for example made of polyvinyl chloride or textile, is mounted on the profile 1. The sheet 3 extends substantially horizontally and comes to bear on the rounded part 32 of the lower end part 31 of the profile 1. The sheet 3 then extends substantially vertically and comes into contact with the side wall 6.

[0153] The sheet 3 closes the opening of the groove 20 and completely hides it from view, the edge of the sheet 3 being mounted in the upper recess 14.

[0154] The rounded part 32 of the profile 1 is advantageously free of reliefs or projections, and has a surface condition with very low roughness. The same is advantageously true of the side wall 6. The risks of injury to the sheet 3 are thus limited.

[0155] The edge of the sheet 3 is advantageously devoid of fixing means, such as a snap ring, hook or harpoon, and the edge of the sheet 3 is wedged in the upper recess 14.

[0156] In some implementations, the inner surfaces of the upper recess 14 are smooth and the edge of the sheet 3 is stuck in the upper recess 14 by placing an insert 15 in the form of a friction tab 50, for example made of silicone, comprising at least one elastic lip.

[0157] In the embodiment shown in [Fig.2], the friction tab 50 comprises three elastic lips 51. The upper recess 14 thus forms a cage for an insert, advantageously an insert not sewn to the sheet 3, the insert being for example made of silicone.

[0158] As a variant, not shown, the upper recess 14 is provided with notches. As a variant, not shown, the upper recess 14 has a projection restricting its opening. As a variant, a bead, for example of circular cross-section, is force-fitted into the upper recess 14, to hold the sheet 3. This bead is for example made of silicone and is attached to the edge of the sheet 3, for example by sewing. In other implementations, not shown, the bead has an oval, square or polygonal cross-section, the upper recess in which the bead is force-fitted being of complementary shape.

[0159] In the embodiment of [Fig.3], the slab formed by assembling sections of profile 1 comprises a bracket 13 supporting a block 4 of insulation.

[0160] For information, block 4 is a fleece made of sound-absorbing material, with a thickness of 25 mm.

[0161] The support bracket 13 is for example of L-shaped section, of height substantially equal to that of the block 4 and of width substantially equal to the height.

[0162] The bracket 13 is mounted by insertion into the upper groove 10 of the internal wall 7.

[0163] In the embodiment of [Fig.4], the slab formed by assembling sections of profile 1 comprises a plate 42 carrying lighting means, such as for example light-emitting diodes 43. The diodes are advantageously arranged in strips or in a sheet.

[0164] Advantageously, the plate 42 does not extend opposite the upper recess 14. The presence of the plate 42 thus does not hinder the possible disassembly of the sheet 4L.

[0165] Advantageously, the plate 42 does not extend opposite the groove 8, or is provided with holes allowing access to the groove 8. The light panel can thus be mounted in suspension.

[0166] The diodes may produce white or non-white light. The plate 42 may comprise diodes emitting in different colors, simultaneously or in sequence.

[0167] The diodes are advantageously distributed equidistantly, in order to ensure uniform lighting.

[0168] Where appropriate, the slab comprises a plate of translucent material in order to homogenize the lighting.

[0169] The luminous slab thus formed advantageously comprises a sheet 41 made of translucent material, for example polyvinyl chloride, where appropriate printed.

[0170] In the embodiment of [Fig.5], a sheet 3a, for example a mirror-finished canvas, in particular made of polyester, is mounted on the profile 1 using a flat 60.

[0171] The flat 60 is for example a metal plate, in particular made of aluminum alloy.

[0172] The thickness of the flat 60 is for example 2 to 3 mm, and its width 25 mm.

[0173] The flat 60 rests on the edge 23 and is advantageously fixed to the partition. 24.

[0174] The fixing of the flat 60 on the partition 24 is for example obtained by screwing or riveting. During this screwing, the flat 60 is pressed against the first inclined segment 25 of the partition 24.

[0175] In some implementations, the flat 60 is devoid of through holes for assembly means such as screws.

[0176] When screwing the flat 60, a hole is drilled through the flat 60 and / or the partition 24. The drilling chips (and debris from any riveting) are deposited in the cavity 30, and cannot come into contact with the sheet 3a.

[0177] In the embodiment of [Fig.6], a first canvas or sheet 3a is fixed, in the manner described with reference to [Fig.5], and a second canvas or sheet 3b is mounted on the profile 1, the edge of the sheet 3b being mounted in the internal recess 11.

[0178] The two sheets 3a, 3b are substantially parallel to each other. The sheet 3a is advantageously a fire-resistant fabric, the sheet 3b being, for example, a polyvinyl chloride fabric.

[0179] In certain implementations, in the double-skin slab thus obtained, the layers 3a, 3b are perforated, or microperforated, each layer having different perforations, in order to improve the acoustic performance of the slab.

[0180] In the embodiment shown in [Fig.6], a projection restricts the opening of the internal recess 11 and the edge of the second sheet 3b is provided with hook-shaped mounting means.

[0181] As a variant, not shown, the internal recess carries notches for retaining a rod carried by an edge of canvas. As a variant, not shown, two projections restrict the opening of the internal recess, the edge of canvas being for example in the form of a double hook.

[0182] In the embodiments of figures 5 and 6, a finishing cover 70 is mounted on the profile 1, and hides the opening of the groove 20 from view. The finishing cover 70 advantageously hides the assembly of the mounting means from view. canvas provided on the side wall 6 of the profile 1.

[0183] The finishing cover 70 may have the same colors and finish as the profile 1.

[0184] As a variant, the profile 1 may have a surface appearance, on the external wall 6, different from the external appearance of the finishing cover 70, which is advantageously more neat, in terms of surface condition in particular.

[0185] The finishing cover 70 can be personalized, and carry colors, and / or patterns on demand, for example resulting from painting, printing, molding.

[0186] As shown in [Fig.7], the finishing cover 70 comprises an external part 71 carrying on one of its faces an upper hook 72 and a lower hook 73. Between the upper hook 72 and the lower hook 73, the finishing cover 70 carries at least one projection 74.

[0187] The projection(s) are of small thickness.

[0188] In certain implementations, the projection(s) 74 are made of an elastically deformable material. The cover 70 is for example made by bi-material injection.

[0189] In some implementations, the finishing cover 70 is made of a metallic material, for example an aluminum alloy.

[0190] In other embodiments, the finishing cover 70 is made of polymer material, for example polyvinyl chloride or ABS, or of composite material.

[0191] In the embodiment shown, the external part 71 is substantially flat, of constant thickness over the entire height of the finishing cover 70.

[0192] For information purposes, the height of the finishing cover 70 is 62 mm, and the thickness of the external part 71 is 1 to 3 mm, for example 1.5 mm.

[0193] The external face 75 of the finishing cover 70 is advantageously smooth.

[0194] The external face 75 of the finishing cover 70 bears, where appropriate, a decoration, for example example a coating, adapted to the request.

[0195] The finishing cover 70 advantageously extends, when it is mounted on the profile 1, over the entire height of the side wall 6.

[0196] In the mounted position of the cover 70 on the profile 1, the upper hook 72 is housed in the upper recess 14, or in a recess provided for this purpose on the profile, and the upper hook 72 rests on the upper wall 5 of the profile 1.

[0197] The lower hook 73 rests on the partition 24, and the projection(s) 74 rest on the side wall 6.

[0198] The lower hook 73 advantageously has a T-shaped section comprising a core 76 and two wings 77, 78.

[0199] The core 76 of the lower hook 73 extends substantially horizontally and comes to bear on the second segment 26 of the partition 24.

[0200] The first wing 77 of the lower hook 73 facilitates the assembly and disassembly of the finishing cover 70, by coming into abutment against the strip 22 bordering the groove 20.

[0201] The second wing 78 of the lower hook 73 comes to bear against the third segment 27 of the partition 24.

[0202] As shown in Figures 5 and 6, there is advantageously a space 80 between the lower edge 81 of the finishing cover 70 and the lower end part 31 of the profile 1. These arrangements facilitate the handling of the cover 70 for its possible disassembly.

[0203] [Fig.8] illustrates the steps of mounting a finishing cover 70 on a profile 1. For the sake of simplification, the sheet(s) mounted on the profile are not shown in [Fig.8].

[0204] In a first step, the cache 70 is approached to the profile 1, this approach being able to be carried out by an essentially vertical movement of the cache 70 relative to the profile 1.

[0205] It is thus not necessary to have a large space, opposite the side wall 6 of the profile 1, to fix the cover 70 on the profile 1.

[0206] In a second step, the cover 70 is in abutment in the groove 20, the core 76 of the lower hook 73 being in abutment against the strip 22. The width of the strip 22 is reduced, and less than the width of the core 76 of the hook 73. The operator feels this abutment position, and does not need visual access to the side wall 6 of the profile 1.

[0207] The operator places the finishing cover 70 vertically and / or slides it horizontally, until the external part 71 of the cover 70 is in contact with the side wall 6.

[0208] During this movement, the operator can pivot the cover 70, in the counterclockwise direction in [Fig.8]. This rotation of the cover 70 relative to the profile 1 is facilitated by the inclination of the edge 21 of the strip 22. During the rotation of the cover 70, this edge 21 is advantageously supported in the angle formed by the core 76 and the first wing 77 of the cover 70.

[0209] The operator then moves the finishing cover 70 vertically, downwards. During this movement, the lower hook 73 moves closer and then comes into contact with the partition 24. This vertical movement of the finishing cover 70 is obtained or facilitated, in certain implementations, by the cover's own weight.

[0210] During the descent of the cover 70, the wing 78 of the hook 73 comes into contact with the partition 24, on the third segment 27. Advantageously, during the descent of the cover 70, friction between the hook 73 and the partition 24 is obtained. If necessary, this friction increases during the descent of the finishing cover 70.

[0211] When the finishing cover 70 is to be removed from the profile 1, the reverse operations can be carried out manually.

[0212] The finishing cover 70 is thus mounted on the profile 1 in a perfectly reversible manner, without specific tools, without fatigue or inconvenience for the installer.

[0213] Advantageously, the upper recess 14 (or a recess provided in the wall su upper) comprises a groove 90 in which a projection 92 of the upper hook 72 is housed, during the assembly of the finishing cover 70. The cooperation of this groove 90 with this projection helps to maintain the finishing cover 70 in its position mounted on the profile 1.

[0214] The angle of the strip 22 with the horizontal facilitates the rotation of the finishing cover 70 during its disassembly.

[0215] The profile 1 can be mounted in suspension, for example on a ceiling.

[0216] In some implementations, an insert nut, for example an M6 insert, housed in the groove 8 ensures the assembly of the profile 1 to a suspension means such as a cable, for example a steel cable.

[0217] In other embodiments, not shown, a magnet provides a connection between the profile and a mounting support, such as a console or a pendant. The mounting support is for example formed by a sheet metal folded into a U. The magnets can be of the aluminum-nickel-cobalt, ferrite, or rare earth type, for example samarium-cobalt. Advantageously, the magnets are of the neodymium-iron-boron type, obtained by sintering. Mounting by means of magnets advantageously allows rapid disassembly of the slab.

[0218] The profiles 1 can be assembled so as to form slabs, for example with a square, rectangular or polygonal outline. For example, the profiles 1 are cut at a bevel in their end assembly part, so as to form a 45° plane. A bracket is placed in the groove 8 and / or a bracket is placed in the groove 12. The assembly is mitered. A space is maintained between the two end planes of the profiles, this space allowing the insertion of the edge of the canvas covering the two profiles.

[0219] The profile as just described has numerous advantages.

[0220] The profile makes it possible to provide a false ceiling slab structure with stretched canvas, in which the canvas mounting means are hidden from view by a cover, the mounting and dismounting of the cover being easy and quick, without tools.

[0221] The assembly of the finishing cover makes it possible to form an assembly having a smooth, continuous, full surface, preventing the entry of dust or dirt.

[0222] The profile makes it possible to provide a false ceiling slab structure with stretched canvas, the slab having a low thickness and allowing the mounting of different types of canvas. The profile allows the mounting of canvases or sheets, flexible, deformable or slightly deformable, the canvases or sheets being for example made of polyvinyl chloride, ETFE, or fabric, for example polyester, coated polyester.

[0223] The profile comprises several grooves for receiving and mounting canvas edges, each receiving groove being advantageously adapted to a means for mounting canvas on the profile. It is thus possible to mount a canvas edge on the profile. without an added assembly means, the edge of the canvas being held in place in the profile, for example, by a friction tab. It is also possible to mount a canvas edge on the profile with an added assembly means, for example a silicone bead. If necessary, two canvases can be mounted one on top of the other on the profile.

[0224] The profile thus offers great versatility in mounting the canvases.

[0225] The means for mounting the canvas on the profile are hidden from view.

[0226] When a slab is mounted as shown in figures 5 or 6, an observer placed under the slab only sees the stretched part of the canvas.

[0227] The profile advantageously has a reduced height. The slab thus has a reduced thickness, and can be placed as close as possible to a civil engineering structure, such as a wall.

[0228] The profile is advantageously obtained by extrusion, and its weight is reduced. For information, the profile can be made of aluminum alloy (for example AlMgSi 6060T5) or steel.

[0229] When the canvas is solid and in particular without perforations in its edge part, the canvas provides protection against the entry of dust or dirt into the housings opening on the external face of the profile.

Claims

Claims

1. Assembly comprising a profiled element (1) of a false wall frame with stretched canvas, the profiled element (1) comprising an upper wall (5) and a side wall (6), the assembly comprising a finishing cover (70) capable of being removably mounted on the side wall (6) of the profiled element (1), the finishing cover (70) being, in the mounted position on the profiled element (1), resting on the upper wall (5), the side wall (6) comprising a groove (20) for mounting an edge of stretched canvas, this mounting groove (20) having an opening oriented towards the outside of the profiled element (1), the assembly being characterized in that the finishing cover (70) is, in the mounted position on the profiled element (1), resting on a partition (24) internal to the groove (20) for mounting the edge of stretched canvas.

2. Assembly according to claim 1, characterized in that in the mounted position of the finishing cover (70), a space (80) is formed between the lower edge (81) of the finishing cover (70) and the lower end part (31) of the profiled element (1).

3. Assembly according to any one of claims 1 or 2, characterized in that the finishing cover (70) comprises a hook-shaped upper part.

4. Assembly according to any one of claims 1 to 3, characterized in that the finishing cover (70) comprises a lower hook (73).

5. Assembly according to claim 4, characterized in that the lower hook (73) comprises a core (76) and two wings (77, 78).

6. Assembly according to any one of claims 1 to 5, characterized in that the finishing cover (70) comprises an external part (71) carrying an upper hook (72), a lower hook (73), and at least one projection (74) between the upper hook (72) and the lower hook (73).

7. Assembly according to claim 6, characterized in that the finishing cover (70) comprises a rigid external part (71), the projection (74) being made of elastically deformable material and being attached to the rigid external part (71) of the finishing cover, or being the result of two-material injection with the external part (71) of the finishing cover.

8. Assembly according to any one of claims 1 to 7, characterized in that the opening of the mounting groove (20) is delimited, in the upper part, by an inclined edge (21).

9. Assembly according to any one of claims 1 to 8, characterized in that a flat (60) is fixed on the partition, a canvas edge being clamped between the flat (60) and the partition (24), the internal face (29) of the mounting groove (20) delimiting with the partition (24) a cavity (30) for receiving debris of material coming from the fixing of the flat (60) on the partition (24).

10. An assembly according to any one of claims 1 to 9, characterized in that the profiled element (1), when seen in cross-section, is inscribed in a contour of general triangular, square or rectangular shape.

11. Assembly according to any one of claims 1 to 10, characterized in that the profiled element (1) has a right-angled triangle section, an internal wall (7) connecting the upper wall (5) to the side wall (6), the internal wall (7) comprising an internal recess (11) for mounting an edge of stretched canvas.

12. Assembly according to any one of claims 1 to 11, characterized in that the upper wall (5) comprises a recess (14) for mounting an edge of stretched canvas.

13. Assembly according to any one of claims 1 to 12, characterized in that the upper wall (5) comprises a recess (14) provided with a groove (90), the finishing cover (70) comprising a projection (92) which is housed in this groove (90), in the mounted position of the cover on the profiled element (1).

14. 14. Frame for producing a false wall comprising an assembly according to any one of claims 1 to 13.

15. 15. False wall such as a slab comprising an assembly according to any one of claims 1 to 13.

Images