EP4350099A1 - Profiled element for a stretched-fabric slab and slab comprising such a profiled element - Google Patents

Abstract

Profiled element of a false wall frame with stretched canvas, the profiled element having a straight section generally in the shape of a right triangle, the profiled element comprising a lower wall and an inclined wall, as well as a connecting wall, the inclined wall forming the hypotenuse of the triangular section, the profiled element comprising at least two stretched canvas edge receiving grooves, characterized in that the two stretched canvas edge receiving grooves have their opening arranged in the upper part of the profiled element, between the inclined wall and the connecting wall.

Description

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

False ceilings and false stretched walls have been known for a long time. We can refer, for example, to the documents CA835014 (Barracudaverken, 1970 ), FR2078579 (Blick, 1971 ).

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

The frame is formed by assembling profiles, called smooth, made of polymer material such as polyvinyl chloride or ABS (acrylonitrile butadiene styrene), or of metal alloy, typically aluminum alloy, or of composite material, for example polymer material fiber reinforced.

Depending on their constituent material, the rails are conventionally extruded or pultruded.

The frame can be attached directly to the walls of a room, for example by screwing. The canvas can then have a large surface area, and be formed by assembling strips.

We also know false walls and false ceilings comprising slabs or boxes, comprising at least one canvas mounted on a frame of rails.

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.

We also know slabs formed from two canvases attached to a frame, see for example FR1319171 (Isora, 1963 ), US3460299 (Wilson ).

The vast majority of false stretched ceilings are mounted with their entire horizontal stretched canvas. In certain embodiments, the canvas being stretched on a horizontal frame made of stringers fixed on the walls of a room, deformations of the stretched sheet are produced, as described in the documents FR1515260 (Saulnier, 1968 ) Or EP281468 (Scherrer, 1988 ).

The fabrics for false ceilings or false stretched walls are most often made of flexible, deformable polymer, in particular polyvinyl chloride.

By deformable, we mean here the possibility of stretching these canvases, by manual effort.

We also know false stretched ceilings and false stretched walls comprising a slightly deformable canvas, in particular in fabric, or in coated fabric, for example by calendering.

The means of mounting canvas edges on a stringer frame are very varied.

In a first family of means for mounting the edges of the canvas on the heddle frame, the periphery of the canvas comprises a strip of added material, having a hook-shaped section.

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 canvas edge in hook shape anchoring positively on this lip. We can refer, for example, to the document FR1303930 (Barracudaverken, 1962 ).

In this first family and according to a second type of embodiment, the rail has a U-shaped groove and one of the two walls of the groove of the rail includes a shoulder whose part located towards the bottom of the groove forms a support for the edge hook-shaped canvas. We can refer, for example, to the documents FR 1475446 (Licentia, 1967 ), FR2002261 (Barracudaverken, 1969 ), EP 338925 (Scherrer, 1989 ), FR2843141 (Mphi, 2004 ).

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 and the edge of the canvas is in the shape of a double hook. We can refer for example to the documents FR2486127 (Allemann, 1982 ), FR2627207 (Bidini, 1989 ). In this first family and according to a fourth type of achievement, the rail has a rigid lip on which the edge of the canvas hangs. We can refer for example to the document FR2786515 (Newmat, 2000 ).

In a second family of means of mounting the canvas edges on the heddle frame, the canvas is pinched.

In this second family and according to a first type of achievement, the canvas is pinched by the rail against a wall. We can refer, by example, to documents FR2715682 (Hosteing, 1995 ), FR 2734296 (Ringaud, 1996 ).

In this second family and according to a second type of embodiment, the rail is provided with means forming an installation and tension clamp. We can refer, for example, to the documents FR 2699211 (Swal, 1994 ), FR 2537112 (Bernardy, 1984 ).

In a third family of means for mounting the canvas edges in the frame of stringers, the canvas edge is provided with a rod, generally of round section, which is lodged with friction in a groove in the stringer. We can refer for example to the document FR1588150 (Pecault, 1970 ).

Different mounting means have been proposed in the prior art, for the installation of tensioned false wall slabs, on a civil engineering structure such as a ceiling.

Most often, the slabs are supported on an L or T-shaped support, comprising a vertical core and a horizontal sole which extends squarely at a lower end of the core, this sole defining a laying plane for the slabs. The slabs then form a false ceiling similar to a conventional suspended ceiling. We can refer for example to the documents EP2961897 (Newmat, 2016 ), EP2313574 (Newmat, 2011 ), FR3112564 (Texaa, 2022 ), FR2793506 , FR2793504 , FR2789101 (Scherrer, 2000 ).

In some designs, the tiles are suspended directly from the ceiling. We can refer for example to the document WO2018/078416 (Kvadrat soft cells, 2018 ), which describes a mechanism for fixing tiles to a ceiling, using a push lock.

The document WO2019/229157 (Kvadrat soft cells, 2019 ) describes a false ceiling tile panel, the panel comprising a frame in which a textile is held under tension. Fixing the canvas to the frame is obtained by mounting the canvas edge in a groove in a profile and pinching the canvas edge in a groove in the profile using a helical spring. The profile is held in the slab frame using spring elements arranged in cutouts in the slab frame elements. The frame elements are formed by folding a metal sheet and a corner piece ensures the junction of the frame elements after folding the sheet.

The slabs described in the document WO2019/229157 have many disadvantages.

Firstly, the fixing of the canvas to the frame is complex and involves a large number of parts, this fixing requiring the use of a multiplicity of springs of a first type to ensure the pinching of the edge of the canvas in the groove of a profile, and the use of a multiplicity of springs of a second type for mounting the profile in the slab frame.

Secondly, the lateral edge of the slab carries an opening in which the canvas mounting profile is housed, and this opening is only hidden from view if the slabs are mounted edge to edge. However, there is a demand, particularly from architects, for slabs spaced from each other, so as to break the monotony of flat false ceilings extending over very large areas.

The false ceiling panels described in the document WO 2018/007856 (Kvadrat soft cells, 2018 ), DE102015113787 (Sefar, 2016 ) have similar disadvantages.

In the stretched ceiling frames of the prior art, the rails are conventionally designed according to the means of assembling the edge of the canvas. The result is a very wide variety of rails, all specifically dedicated to a method of mounting the canvas edge.

This state of affairs has many disadvantages.

Rapidly sourcing a wide variety of profiles leads to complications in terms of inventory management or logistics. These complications are further increased by the fact that the choice of a false stretched ceiling or a false stretched wall also means a choice of canvas.

However, there is a wide variety of fabrics, in terms of colors and finishes (notably marbled, satin, matte).

Manufacturers must prepare the canvases by adding the border necessary for their assembly to the chosen profile, for example border in the shape of a single hook, double hook, or rush. An error in installing the canvas border can make the canvas unusable with the chosen profile.

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

A first object of the invention is to provide a false ceiling slab structure with stretched canvas, in which the means for mounting the canvas are hidden from view, the assembly of the canvas on the frame being easy and quick.

Another object of the invention is to provide a false ceiling slab structure with stretched fabric, the slab having a small thickness and allowing the assembly of different types of fabrics, the fabrics being able in particular to be of the flexible deformable type, or of the noticeably undeformable.

For these purposes, it is proposed, according to a first aspect, a profiled element of a false wall frame with stretched canvas, the profiled element having a straight section generally in the shape of a right triangle, the profiled element comprising a lower wall and an inclined wall, as well as a connecting wall, the inclined wall forming the hypotenuse of the triangular section, the profiled element comprising at least two grooves for receiving the edge of the stretched canvas, the two grooves for receiving the edge of the stretched canvas having their opening arranged in the upper part of the profiled element, between the inclined wall and the connecting wall.

The openings of the canvas edge receiving grooves are thus oriented opposite the lower wall of the profiled element, and are hidden from view when the canvas edge is mounted on the profiled element.

Advantageously, the angle between the lower wall and the inclined wall is between 10° and 90°, and particularly between 10° and 45°, and even more particularly between 20° and 30°.

The thickness of the profile is thus reduced.

At a given profile thickness, a reduction in the angle between the bottom wall and the inclined wall makes it possible to place the openings of the canvas edge receiving grooves at a greater distance from the edge of the profiled element, further reducing the visibility of the means of mounting the canvas.

Advantageously, the inclined wall comprises a lower support edge for the stretched canvas, this lower edge being advantageously devoid of reliefs and extending below the lower wall of the profiled element. The risk of injury to the canvas is thus reduced. Advantageously, the lower wall comprises at least one groove for mounting an assembly means such as a fishplate or a bracket.

It is proposed, according to a second aspect, an assembly comprising a profiled element as presented above and a canvas stretched over the profiled element, the canvas being stretched substantially parallel to the lower wall and coming to rest on the inclined wall.

In certain implementations, a canvas edge is held in one of the receiving grooves by force insertion of a rod. The rod is for example attached to the edge of the canvas, and is of round, square, oval or polygonal section.

Alternatively or in combination, a canvas edge is held in one of the receiving grooves by a pinching or friction member. A friction member is for example a seal provided with at least one deformable lip. The friction or pinching member is advantageously not attached to the edge of the canvas.

In other embodiments, as a variant or in combination, the edge of the canvas is provided with a hook or harpoon, coming to support, or hooking onto a wall of one of the grooves receiving the edge of the stretched canvas.

It is proposed, according to a third aspect, a false wall comprising a profiled element as presented above and at least one canvas, or comprising an assembly as presented above, the false wall being a false wall, a false -ceiling, a box or a slab.

The box or the slab can for example be suspended from the ceiling, for example by steel cables, or fixed to consoles, for example by magnetic fixing means.

• [Fig.1] est une vue en coupe transversale d'un profilé de dalle, selon un mode de réalisation ;
• [Fig.2] est une vue analogue à la figure 1, une toile étant montée tendue sur le profilé, selon un premier montage ;
• [Fig.3] est une vue analogue à la figure 1, une toile étant montée tendue sur le profilé, selon un deuxième montage ;
• [Fig.4] est une vue analogue à la figure 1, des moyens de suspension du profilé étant représentés, selon un premier mode de réalisation, un bloc d'isolant étant en outre partiellement représenté monté sur le profilé ;
• [Fig.5] est une vue analogue à la figure 1, des moyens de suspension du profilé étant représentés, selon un deuxième mode de réalisation, un bloc d'isolant étant en outre partiellement représenté monté sur le profilé ;
• [Fig.6] est une vue de dessous de l'assemblage en angle à 90° de deux profilés du type représenté en figure 1 ;
• [Fig.7] est une vue analogue à la figure 1, montrant la mise en place d'un profilé de finition ;
• [Fig.8] est une vue en coupe transversale d'un profilé de finition, selon un mode de réalisation.

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

• [ Fig.1 ] is a cross-sectional view of a slab profile, according to one embodiment;
• [ Fig.2 ] is a view analogous to the figure 1 , a canvas being mounted stretched on the profile, according to a first assembly;
• [ Fig.3 ] is a view analogous to the figure 1 , a canvas being mounted stretched on the profile, according to a second assembly;
• [ Fig.4 ] is a view analogous to the figure 1 , means for suspending the profile being shown, according to a first embodiment, an insulating block being further partially shown mounted on the profile;
• [ Fig.5 ] is a view analogous to the figure 1 , means for suspending the profile being shown, according to a second embodiment, an insulating block being further partially shown mounted on the profile;
• [ Fig.6 ] is a bottom view of the 90° angle assembly of two profiles of the type shown in figure 1 ;
• [ Fig.7 ] is a view analogous to the figure 1 , showing the installation of a finishing profile;
• [ Fig.8 ] is a cross-sectional view of a finishing profile, according to one embodiment.

In the rest of the text, the expression and/or designates three possibilities, namely the alternative (or) and the combination (and).

On the figures 1-5 And 7 Appended are shown profiled elements 1, seen in section. For simplification, in the remainder of this description, the profiled elements 1 are referred to as profiled elements 1.

To facilitate reading, we define in these figures an orthogonal reference XYZ comprising three perpendicular axes in pairs, 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 horizontal XY plane.

In the remainder of this description, the terms "horizontal", "vertical", "top", "bottom", "high", "low" are used in reference to this XYZ mark, without this implying any limitation in the orientation that the profile 1 can take during its use.

So for example, the profile 1 can be used for the production of false ceilings, and carry one or more canvases stretched substantially horizontally, as shown in the figures 2 , 3 .

The profile 1 can be used to create false walls, and carry one or more stretched canvases extending substantially vertically. The profile 1 can also be used to create false walls, and carry one or more canvases extending along a plane forming any angle with the vertical.

In the remainder of this description, only part of the edge of each canvas is shown mounted on a profile.

It is understood that the profile can be used for the production of a frame, this frame being fixed on a civil engineering structure (such as a wall, ceiling, partition). The frame can be formed by assembling a profile 1 as shown in the figures.

It is understood that the profile 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 partition).

In the figures, profile 1 is shown in section.

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

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.

The profile 1 can 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 effort.

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

In a particular implementation, the profile 1 is made of polymer material with fiberglass reinforcement or plant fiber such as linen fiber. This arrangement makes it possible to achieve high mechanical resistance per linear meter of profile.

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

Advantageously, the profile 1 carries a coating, for example obtained by lacquering, powder coating, or painting.

This coating provides protection against corrosion and facilitates cleaning.

In certain implementations, this coating advantageously provides a visual effect. In certain particular implementations, the coating is reflective, in particular on the internal face of the profile. In other implementations, the coating behaves like a black body and absorbs incident light. In depending on the desired aesthetic effects, certain parts of the profile can be provided with a reflective coating, and other parts of the profile can be provided with an absorbent coating.

The profile 1 can be cut, by known means, to the desired length, and the profile sections can be assembled together, in particular by fishplates and brackets.

The profile 1 advantageously comes from extrusion or pultrusion. In the embodiments appearing in the figures, the profile 1 is in the form of a hollow body, the profile 1 comprising an internal space 2, the profile comprising housings, recesses, grooves, and grooves opening on each of the three faces of the profile. These arrangements are advantageous in terms of mechanical resistance per linear meter of profile. These arrangements also facilitate cutting of the profile during installation on site. These arrangements also allow the passage of wire elements, if necessary, for example for low current.

In other embodiments, not shown, the profile is substantially full. 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, but does not have good mechanical properties.

In the embodiments shown, the sheets or fabrics 3 are shown in the form of solid strips of small, substantially constant thickness.

It is understood that each canvas or sheet 3 may be full or not, for example provided with perforations or microperforations. Microperforations can provide acoustic attenuation, as described in the document WO01/71116 (Newmat ). Alternatively, the tablecloth or canvas can be provided with opening perforations visible to the naked eye.

In certain implementations, the fabrics or sheets 3 are made of deformable material, such as polyvinyl chloride, for example translucent, matte, lacquered or satin.

In advantageous implementations, the fabrics or tablecloths 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).

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

In the embodiments shown, the profile 1 has a generally triangular section, in a right triangle. By "generally triangular in a right triangle" is indicated here that the external contour of the profile 1 is part of a triangle comprising a right angle, in particular for its lateral part 4 on which the canvas 3 is fixed.

As appears in the figures, the profile 1 comprises an internal part 5, in which an insulating block 6 is advantageously mounted. The term “internal” is used here in reference to the use of the profile 1 for mounting at least one edge of canvas or tablecloth 3. The lateral part 4 and the internal part 5 of the profile 1 are connected by a wall of connection 7, adjoining, substantially vertical.

By “insulating block”, we mean here in particular a plate of material having sound insulation or thermal insulation properties, these properties being combined where appropriate. The insulating block includes for example glass wool, rock wool, polyurethane (in particular foam). Advantageously, the insulating block comprises a bio-sourced material such as wood wool or cellulose wadding.

The side part 4 of the profile 1, generally inscribed in a right triangle, comprises the connecting wall 7, a lower wall 8, and an inclined wall 9 connecting the lower wall 8 to the connecting wall 7. In the embodiment shown , the lower wall 8 is provided with three grooves 10, 11, 12, each intended for mounting connecting means, of the fishplate or fixing bracket type.

In other embodiments, not shown, the profile comprises one or two grooves for mounting connecting means, of the bracket or fishplate type.

The inclined wall 9 forms a support plane 13, the canvas 3 being pressed against the support plane 13 after its assembly on the profile 1.

The profile 1 has at least two grooves 14, 15 for receiving a canvas edge 3. These grooves 14, 15 are advantageously arranged between the inclined wall 9 and the connecting wall 7. The opening of these grooves 14, 15 faces upwards.

In the embodiments shown, each of the two grooves 14, 15 defines a housing having a U-shaped section, comprising two substantially parallel walls, and a bottom wall. The two grooves 14, 15 have different depths.

In other embodiments, not shown, the two grooves 14, 15 have different sections, one of the grooves being for example U-shaped with a flat bottom, the other groove being U-shaped with a rounded bottom.

In other embodiments, not shown, the profile comprises more than two canvas edge receiving grooves.

Each receiving groove is advantageously adapted to a means of mounting the canvas on the profile.

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

Each of the housings can be in the form of a groove in which a canvas edge is pinched. This arrangement is advantageous, the edge of the canvas not having any added element such as hook section strip or harpoon.

The pinching is advantageously obtained by means attached, in a removable manner, in a housing of the profile.

Each of the housings can be in the form of a groove into which an edge of canvas carrying a rod is pressed by force. The edge of the canvas is for example provided with a silicone rod, for example sewn onto the canvas. The rush has a section complementary to that of the housing.

In the embodiment shown, the first groove 14 is delimited by the connecting wall 7 and a wall 16 substantially vertical and parallel to the adjoining wall 7. The internal surfaces of the first groove 14 are smooth and the edge of fabric 3 is for example stuck in the first groove 14 by insertion of a friction tongue 17, comprising at least one elastic lip 18. In the embodiment shown in figure 2 , the elastic tongue 17 comprises three elastic lips 18.

For the assembly of canvas 3 according to figure 2 , in the first housing 14, the canvas edge advantageously does not include any added element in the form of a hook or rod.

Alternatively, not shown, the first groove 14 is provided with notches on the wall 7 and/or on the wall 16. Alternatively, not shown, the first groove 14 has a projection restricting the opening of the first groove, this projection being carried by the wall 7 and/or the wall 16.

In the embodiment shown in Figure 3 , a rod 19 has a circular cross section, and is forced into the second housing 15.

This rod 19 is for example made of silicone and is attached to the edge of the canvas, for example by sewing.

In other implementations, not shown, the ring has an oval, square or polygonal section, the housing in which the ring is force-mounted being of complementary shape.

The walls of the second housing 15 advantageously comprise reliefs, such as notches 20 and/or at least one projection 21 in the vicinity of the opening of the housing 15. These notches 20 and projection 21 prevent the exit of the rod 19 from the interior of the second housing 15, the canvas 3 being thus held taut on the profile 1.

In the embodiment shown in Figure 3 , the second housing 15 is delimited laterally by the wall 16 common to the two housings 14, 15 and a substantially vertical wall 22. The wall 22 carries notches 20 and the wall 16 carries a projection 21 restricting the opening of the second housing 15.

As a variant, not shown, each of the two walls 16, 22 of the second housing 15 carries notches for retaining a rod carried by a canvas edge. Alternatively, not shown, each of the two walls 16, 22 of the second housing 15 carry a projection intended to restrict the opening of the second housing 15. Alternatively, not shown, the wall 16 carries notches and the wall 22 carries a projection intended to restrict the opening of the second housing 15.

The profile 1 has a rounded lower side edge 23. As it appears in figure 2 And 3 , when a fabric 3 is mounted on the profile, the fabric 3 comes to rest on the lower side edge 23 and is stretched, substantially horizontally, below the lower wall 8 of the profile 1.

The lower lateral edge 23 of the profile 1 is advantageously devoid of reliefs or projections, and has a surface condition with very low roughness. The same applies, advantageously, to the surface of the support plane 13. The risks of injury to the fabric 3 are thus limited.

The lower lateral edge 23 of the profile 1 advantageously extends below the lower wall 8. When the fabric 3 is mounted on the profile 1, the fabric 3 is thus stretched below the lower wall 8 of the profile, and does not is not in contact with this lower wall 8. The risks of injury to the fabric 3 are thus limited.

The lower wall 8 of the profile extends generally horizontally, and defines a first external face of the profile 1. In this first external face of the profile, the grooves 10, 11, 12 for mounting connecting means such as brackets have their opening facing downwards.

The inclined wall 9 of the profile extends at an angle of around 25° with the horizontal, in the embodiment shown. The inclined wall 9 defines the hypotenuse of the right triangle in which the lateral part 4 of the profile 1 is inscribed.

In other embodiments, not shown, the angle formed by the inclined wall 9 with the horizontal is between 10° and 90°.

The internal part 5 of the profile comprises a groove 24 for mounting slab suspension means. This groove 24 also advantageously allows the assembly of assembly means such as fishplates or brackets.

In the embodiment of the Figure 4 , an insert nut, for example an M6 insert, ensures the assembly of the profile to a suspension means 25 such as a cable, for example a steel cable.

In the embodiment of the figure 5 , a magnet 26 provides a connection between the profile 1 and a mounting support 27, such as a console or a hanger. The mounting support 27 is for example formed by a sheet metal folded into a U.

The magnets 26 can be of the aluminum-nickel-cobalt type, ferrites, or even of the rare earth type, for example samarium-cobalt. Advantageously the magnets are of the neodymium-iron-boron type, obtained by sintering. Mounting using magnets advantageously allows rapid disassembly of the panel.

The profiles 1 can be assembled so as to form slabs, for example with a square, rectangular or polygonal outline.

There Figure 6 represents an assembly of two profiles at a 90° angle. The profiles are cut at a bevel in their extreme assembly part, so as to form a 45° plane. A bracket 28 is placed in the groove 10, and a bracket 29 is placed in the groove 11.

The assembly is mitred. A space is maintained between the two end planes of the profiles, this space allowing the insertion of the edge of the canvas to cover the two profiles.

Advantageously, a finishing strip 30 is inserted into this space, this finishing strip 30 being for example in the form of a polyvinyl chloride profile.

As it appears in figures 6 , 7 and 8 , the finishing strip 30 is advantageously placed between the two beveled planes of the profiles 1. The strip 30 comprises two lateral arms 31, 32 which are housed in a reservation 33 of the profiles 1. The strip 30 has an opening 34 in which the edges canvas are introduced, advantageously using a tool such as a spatula.

The profile as just described has numerous advantages. The profile allows the assembly of various canvases or tablecloths, flexible, deformable or slightly deformable, the canvases or tablecloths being for example made of polyvinyl chloride, ETFE, or fabric, for example polyester, coated polyester.

The profile comprises several reception grooves and canvas edge mounting, each reception groove being advantageously adapted to a canvas mounting means on the profile. It is thus possible to mount on the profile a canvas edge without attached assembly means, the retention of the canvas edge in the profile being ensured for example by a friction tab. It is also possible to mount on the profile a canvas edge provided with an attached assembly means, for example a silicone rod. If necessary, two canvases can be mounted superimposed on the profile.

The profile thus offers great assembly versatility for the canvases.

The means of mounting the canvas on the profile are hidden from view. These means are advantageously arranged in the upper part of the profile and are thus not in direct view for an observer. When a slab is mounted in suspension as shown in figures 4 Or 5 , an observer placed under the slab only sees the stretched part of the canvas, and possibly the canvas covering the inclined wall of the profile. The angle formed by the inclined wall is advantageously reduced, for example of the order of 25°, and the length of the inclined wall is advantageously large, for example of the order of 60 mm. The opening of the grooves 14, 15 for receiving the edge of the fabric is advantageously small, for example of the order of 3 to 4 mm. The profile advantageously has a reduced height. As an indication, the height of the profile is around 35 mm. The slab thus has a reduced thickness, and can be placed as close as possible to a civil engineering structure, such as a wall.

The profile is advantageously obtained by extrusion, and its weight is reduced. As an indication, the profile can be made of aluminum alloy (for example AIMgSi 6060T5) or of steel, with a wall thickness of around 2 mm, and a weight per linear meter of around 1.6 kg . When the canvas is full and in particular devoid of 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 (10)

Profiled element (1) of a false wall frame with stretched canvas (3), the profiled element (1) having a straight section generally in the shape of a right triangle, the profiled element (1) comprising a lower wall (8 ) and an inclined wall (9), as well as a connecting wall (7), the inclined wall (9) forming the hypotenuse of the triangular section, the profiled element (1) comprising at least two receiving grooves ( 14, 15) of the edge of the stretched canvas (3), characterized in that the two receiving grooves (14, 15) of the edge of the stretched canvas (3) have their opening arranged in the upper part of the profiled element (1) , between the inclined wall (9) and the connecting wall (7). Profiled element (1) according to claim 1, characterized in that the angle between the lower wall (8) and the inclined wall (9) is between 10° and 90°, and particularly between 10° and 45°, and even more particularly between 20° and 30°. Profiled element (1) according to claim 1 or 2, characterized in that the inclined wall (9) comprises a lower edge (23) supporting the stretched canvas (3), this lower edge (23) extending in below the bottom wall (8) of the profiled element (1). Profiled element (1) according to any one of claims 1 to 3, characterized in that the lower wall (8) comprises at least one groove (10, 11, 12) for mounting an assembly means such as a splint or bracket. Assembly comprising a profiled element (1) according to any one of claims 1 to 4 and a canvas (3) stretched over the profiled element (1), the canvas (3) being stretched substantially parallel to the lower wall (8) and coming to rest on the inclined wall (9). Assembly according to claim 5, characterized in that the canvas edge (3) is held in one of the receiving grooves (14, 15) by force insertion of a rod (19). Assembly according to claim 6, characterized in that the rod (19) is attached to the edge of the canvas. Assembly according to claim 5, characterized in that the edge of the canvas is held in one of the receiving grooves (14, 15) by a pinching or friction member (17). Assembly according to claim 5, characterized in that the edge of the canvas is provided with a hook or harpoon, coming to support, or coming to hang on a wall of one of the receiving grooves (14, 15) of the edge of the stretched canvas. False wall comprising a profiled element (1) according to any one of claims 1 to 3 and at least one canvas (3), or comprising an assembly according to any one of claims 5 to 9, the false wall being a false wall wall, a false ceiling, a box or a slab.

Images