EP3762918A2

EP3762918A2 - Method for mounting a flexible covering stretched over a securing frame, and securing frame for carrying out such a method

Info

Publication number: EP3762918A2
Application number: EP19761904.2A
Authority: EP
Inventors: Bernard Geis
Original assignee: Clipso Productions
Current assignee: Clipso Productions
Priority date: 2018-03-07
Filing date: 2019-03-05
Publication date: 2021-01-13
Anticipated expiration: 2039-03-05
Also published as: FR3078812B1; WO2019170967A3; EP3762918C0; WO2019170967A2; US20210049941A1; FR3078812A1; EP3762918B1

Abstract

The invention relates to a securing frame (10) allowing quick and easy mounting and dismounting of a flexible, stretched covering, specifically a textile frame for an advertising medium, said frame comprising an assembly of rigid base profiled sections (11) and flexible retaining profiled sections (31) which are fitted onto said base profiled sections (11) so as to obtain a mounted, removable clipping system (30). The base profiled section (11) comprises a first groove (16) and a second groove (17) which are parallel, and the retaining profiled section (31) comprises a first wing (32) and a second wing (33) which extend in two parallel directions, the first wing (32) interacting with said first groove (16) to form the aforementioned clipping system (30), and the second wing (33) being fitted into said second groove (17) of the base profiled section (11) in order to obtain a fixed, dismountable coupling for said retaining profiled section (17).

Description

METHOD FOR MOUNTING A SOFT COATING TENDED ON A

FIXING FRAME AND FASTENING FRAME FOR IMPLEMENTING SAID METHOD Technical field:

The present invention relates to a method of mounting a flexible covering stretched over a fastening frame, said fastening frame comprising an assembly of rigid base profiles, each base profile having a first longitudinal groove constituting a receiving housing for an edge peripheral of said coating.

The invention also relates to a fastening frame for the implementation of said mounting method, said fastening frame comprising an assembly of rigid base profiles, each base section comprising a first groove constituting a receiving housing for a peripheral edge of said coating.

PRIOR ART: The invention is particularly, but not exclusively, concerned with the field of visual communication via billboards, promotional materials, etc. in the form of stretched textile frames ideally used for fairs, exhibitions, shop windows, offices and business premises, etc. These stretched textile frames are commonly made from printed fabrics, provided on their periphery with a seamed silicone seal. The frames are made by assembling aluminum profiles, provided with a U-shaped groove adapted to receive by interlocking the silicone seal of the printed fabric and to hold it by pinching. Thus, the printed fabric is fixed and stretched on the frame by a force fit of the silicone seal in the groove. This arrangement has the advantage of being able to be carried out manually and without tools, by a unqualified and safe person. To disassemble the fabric, use a tongue provided on one side of the fabric, which remains accessible outside the frame and allows by simple manual pulling on the tongue out the silicone seal of the groove. This technique of assembly and disassembly is very convenient to use, accessible to any person, without danger, and allows to replace easily and quickly printed fabrics to change and update communication visuals.

However, the manufacture of printed fabrics for this type of application is binding for several reasons. The dimensions of the canvases being strictly imposed by the dimensions of the frames, they must be made to measure and must also respect precise manufacturing tolerances. After manufacture, they must be repeated to bring a silicone seal all along the peripheral edge of the fabric, usually by a sewing operation that is difficult to achieve and time consuming.

This known technique is therefore not totally satisfactory.

WO 2013/079956 proposes to implement a clamp on a frame to block and stretch a sheet of material on the frame. For this purpose, in this document, the sheet comprises a single stiffened edge, for example by fixing a silicone seal. The clamp is mounted on a first wall of the frame by clipping: the clamp comprises two wings that engage the first wall of the frame. The clamp has projecting projections on one of the wings, which abut against a second wall of the frame, parallel to the first wall. The coating is then inserted between the projections and the second wall of the frame.

The method described in this document therefore has the aforementioned drawbacks, since at least one edge must be stiffened. In addition, the removal of the clamp turns out to be a delicate operation. Indeed, the coating must first be removed by exerting a force on it to release projections, at the risk of damaging it. Then only in a second time the clamp can be removed.

Presentation of the invention

The present invention aims in particular to overcome these disadvantages by providing a mounting method and a suitable mounting frame to simplify the manufacture of the flexible coating, while retaining the same advantages related to the ease and speed of assembly and disassembling said coating on said fixing frame, allowing a quick change of visuals, easy handling for any unqualified person, easy and safe use, without deterioration of said coating that can be reused.

For this purpose, the invention relates to a mounting method of the kind indicated in the preamble, characterized in that, before mounting said coating on said fixing frame, is added on each base profile a clamping system. The clamping system is inserted under compressive stress between an outer branch and the inner branch of the base profile. Said clamping system is arranged to retain at least one peripheral edge of the coating in said receiving housing. In addition, the clamping system is removable and comprises at least one separate part and separate from said base profiles and said coating. In addition, to mount said coating on said attachment frame, the peripheral edge of said coating is introduced into said receiving housing against the compression of said pinch system using an insertion tool.

The compression pinch system thus allows, by the single return effort, both to be maintained on a base profile and maintain an edge of the coating in the receiving housing. The placement and extraction of the coating and pinch system are simplified, and the risk of damaging the coating or the pinch system are reduced.

According to one embodiment, to achieve said clamping system, use of holding profiles. Each retaining profile has a first flange and a second flange extending in two mutually parallel directions, the first flange of the retaining section coming into contact with the outer branch of the base section and the second flange of the retaining section coming into contact with the inner branch of the base profile.

In one form of G invention, to achieve said clamping system, use is made of flexible holding profiles, and at least one holding profile is fitted on each base profile, said holding profile comprising at least one first wing that the stress is inserted into said receiving housing so that it cooperates with a fixed branch of said base profile and forms with it said clamping system.

Advantageously, use is made of a base profile provided with a second longitudinal groove extending in a direction parallel to that of the first groove, as well as a retaining profile comprising a first flange and a second flange extending into two directions parallel to each other, the first wing cooperating with said first groove to form said pinch system, and the second wing being fitted into said second groove of said base section to create a fixed and removable connection of said holding profile. It is preferable to use a retaining profile having a V-shaped or U-shaped section.

It is further possible to provide on said flexible covering, a protruding tongue on at least one of its peripheral edges, this tongue being arranged to remain accessible outside said fixing frame after mounting said coating, and to disassemble said coating of said frame of fixation, one advantageously draws on said tongue for extracting said corresponding peripheral edge of said base profile, carrying with it said corresponding retaining profile which disengages, thanks in particular to the biasing force of the pressurized pincushion system, of said base profile and allows disassembly of said coating.

According to one embodiment, the coating is devoid of stiffened edge.

To create an autonomous and self-supporting mounting frame, it is possible to assemble said base profiles together, or to assemble them end to end on a specific chassis.

To create a fastening frame superimposed on a support wall, each end profile can be assembled end to end on said support wall.

For this purpose also, the invention relates to a fastening frame of the kind indicated in the preamble, characterized in that it further comprises a clamping system attached directly to each base section. The clamping system is arranged to be inserted under compressive stress between an outer branch and an inner branch of the base profile, and is arranged to retain said peripheral edge in said receiving housing during assembly of said coating. Said clamping system is removable and comprises at least one separate piece and separated from said base profiles and said coating.

In a preferred form of the invention, said clamping system comprises flexible holding profiles, at least one holding profile being fitted on each base section, said holding profile comprising at least one first wing inserted under stress in said housing. receiving member for cooperating with a fixed branch of said base profile and form with it said clamping system. Said base profile advantageously comprises a second longitudinal groove extending in a direction parallel to that of the first groove, and said retaining profile advantageously comprises a first flange and a second flange extending in two mutually parallel directions, the first wing cooperating with said first groove to form said pinch system, and the second wing being nested in said second groove of said base section to create a fixed and removable connection of said holding profile.

In the preferred form of the invention, said retaining profile has a V-shaped or U-shaped section.

Still in the preferred form of the invention, the first groove and the second groove of said base section are parallel. The second groove of said base profile may have a depth smaller than that of the first groove, and a width smaller than that of the first groove.

Depending on the application envisaged, the fixing frame may comprise an assembly device arranged to assemble said base profiles together and create an autonomous and self-supporting fixing frame. The base profiles may further include a longitudinally extending fastening tab for attachment to a support wall or a specific chassis.

Brief description of the drawings: The present invention and its advantages will appear better in the following description of several embodiments given by way of non-limiting examples, with reference to the appended drawings, in which:

FIG. 1 is a perspective view of an example of a self-supporting fastening frame according to the invention, FIG. 2 is a section of a basic profile used in the manufacture of the frame of FIG. 1,

FIG. 3 is a perspective view of a retaining profile used in the manufacture of the frame of FIG. 1,

FIG. 4 is a perspective view of the base profile of FIG. 2 fixed on a wall,

FIG. 5 is a sectional view of a mounting frame mounted on a wall, showing the placement of a flexible coating, and

Figure 6 is an enlarged view of detail A of Figure 5 showing the retention of said flexible coating in said attachment frame.

Illustrations of the invention and different ways of making it:

In the exemplary embodiments illustrated, the elements or identical parts bear the same reference numbers.

Referring to the figures, the invention relates to a fastening frame 10 for mounting and dismounting a flexible cover 1 stretched over said frame, to create including but not limited to an advertising panel, a promotional support, or the like, used in visual communication, decoration, etc. for example in fairs, exhibitions, shop windows, offices and business premises, private premises, etc. The invention is of course not limited to this application, and extends to the creation of room boxes, false-wall tiles, false ceilings, double wall walls, partition panels, or the like .

FIG. 1 illustrates an example of use of an autonomous and self-supporting mounting frame 10 that can be placed, suspended or hung on any type of support, and FIG. 4 illustrates an example of use of a frame 10, of which only one side is shown, in fixed mode on a support wall 5, such as a wall, a ceiling or the like. To achieve these different implementations, we use base profiles 11 which are assembled to form a fixing frame 10, fixing them on a support wall 5 (FIG. 4) or on a frame 6 (FIG. 1) end-to-end to cover the perimeter of the wall or the frame to cover, or by fixing them together end to end to create a self-supporting mounting frame. Figure 1 illustrates a so-called self-supporting mounting frame 10 since it is not linked to any fixed wall. However, it is carried by a frame 6 which provides greater rigidity to said frame. In this case, the frame 6 can be made of any compatible material, such as wooden spars, compressed wood particles, synthetic materials, composite materials, etc., allowing the fastening in particular by screwing the base profiles 11. These examples are of course not limiting. Indeed, the base profiles 11 may have an enlarged section incorporating a base or the like, to overcome the frame 6 and form by themselves a self-supporting mounting frame 10. In this case, the base profiles 11 are assembled together either by complementary forms of interlocking provided at their ends, or by assembly parts reported in the corners, such as brackets for example.

The flexible covering 1 may be of any material compatible with the use, more or less extensible, such as a woven fabric coated or not, a nonwoven fabric coated or not, a film of synthetic material or composite material, etc. The covering 1 is manufactured or cut in a format taking into account the dimensions of the fastening frame 10 so that its peripheral edges 2 protrude enough from said frame so that they can be introduced inside the base profiles 11 while still having a surplus of coating 3 inside said base profiles 11 (see Figure 6). Thus, according to the mounting method of the invention, the format of the coating 1 does not need to meet strict and binding tolerances. The coating 1 is also free of stiffened edges, reducing the manufacturing costs of the coating 1.

Indeed, the assembly method of the invention is innovative and differs from known assembly methods, in that the attachment frame 10 comprises a system removable pinch 30 which keeps the coating 1 under tension, but which is not integral with the base profiles 11, nor integral with the peripheral edges 2 of said coating 1. This clamping system 30 is obtained in particular by holding profiles 31 additional, which are reported on the base profiles 11 before mounting the coating 1. They are removable from the base profiles 11 and thus facilitate the assembly and disassembly of the coating 1, without technical difficulty, and without danger these operations can be carried out by any person, without any particular qualification. The base profile 11 used in the invention is illustrated more particularly in FIGS. 2 and 4 to 6. It is made from an elongate, rectilinear and rigid piece, preferably obtained by extrusion of a metallic material, such that by way of example of aluminum or any other light metal alloy, but also of a reinforced synthetic material, a composite material or a combination of these materials, the material used being preferably non-corrosive and the obtained profile preferably offering good resistance to bending under normal conditions of use.

In the example shown, the base section 11 comprises three longitudinal branches 12, 13, 14 which extend in parallel directions and which are connected by a bottom 15, namely an outer branch 12, an intermediate branch 13 and an inner branch 14. The relative terms "outside" and "inside" refer to said fixing frame 10 (FIGS. 5 and 6), and correspond to the outer side of the frame having no covering and to the inner side of the frame comprising said coating. These three branches extend more particularly in parallel planes and define between them two longitudinal grooves 16, 17, open, substantially U-shaped. A first groove 16 is defined between the outer branch 12 and the intermediate branch 13 and forms a reception housing for a peripheral edge 2 of the covering 1. It thus has a width L L, defined as the distance between the outer branch 12 and the intermediate branch 13, and a depth Pl adapted to receive the clamping system 30 and the peripheral edge 2 and the surplus 3 of said coating 1. A second groove 17 is defined between the intermediate branch 13 and the inner branch 14 and forms a zone for fixing a retaining profile 31. It thus has a width L2, defined as being the distance between the intermediate branch 13 and the outer branch 14, and a depth P2adapted to the corresponding zone of said retaining profile 31. In the example shown, the width L1 of the first groove 16 is greater than the width L2 of the second groove 17, and the depth P1 of the first groove 16 is greater than the depth P2 of the second groove 17, the depths P1 and P2 being measured. from G end of the outer branch 14. In other words, the length of the intermediate branch 13 on the side of the first groove 16 is greater than the length of the intermediate branch 13 on the side of the second groove 17. The distance LO of the opening defined between the outer branch 12 and the inner branch 14 is equal to the sum of the widths L1 and L2 and the thickness of the intermediate branch 13. The length PO of the outer branch 12 is preferably greater than the depths P1 and P2 of said grooves 16, 17. This outer branch 12 is longer than the other branches 13, 14 and is provided to at least flush the coating 1 when it is mounted and tensioned on the attachment frame 10 (see Figure 5 and 6). Indeed, it constitutes the outer face of the attachment frame 10 when the latter is self-supporting according to Figure 1 and contributes to the aesthetics of the panel obtained. Of course, any other compatible arrangement and / or dimension of the branches 12, 13 and 14 and grooves 16, 17 may be suitable. The base profile 11 further comprises at least one fastening lug 18 which extends longitudinally and in the extension of the bottom 15, perpendicular to said branches 12, 13 and 14. This fastening lug 18 has perforations 19 distributed, preferably regularly, along the length of said profile to receive fastening screws 20 for fixing the base profile 11 on a support wall 5 or on a frame 6 as shown in Figures 1 and 4. The base profile 11 also comprises on said fixing lug 18 reinforcing grooves 21 involved in the stiffening of the profile, in particular in the direction of the bending forces. Of course, the basic section 11 as illustrated may have a different section while keeping its features. It may include an enlarged section incorporating a base or the like, allowing him to be alone a freestanding profile.

The clamping system 30 operates under compressive stress, i.e. it is inserted on the base section 11 while under compression, so that the return force ensures both the maintenance of the system. 30 of nip on the base profile 11 and the maintenance of the coating 3 on the base profile 11.

In the following, we present the example according to which the clamping system 30 comprises a, in practice a plurality of holding profile 31, which each cooperate with a base profile 11, a base section 11 which can cooperate with several holding profiles 31.

The holding profile 31 used in the invention is illustrated more particularly in FIGS. 3, 5 and 6. It is produced from an elongate, rectilinear, flexible piece, preferably obtained by extrusion of a synthetic material, such that as an example of polyvinyl chloride (PVC) or any other equivalent material. In particular, the retaining profile 31 comprises two longitudinal flanges 32, 33, a first flange 32 and a second flange 33, which extend in parallel directions. These two wings 32, 33 are symmetrical or not, and assembled by a fold zone 34 or curvature to form a V or U, giving the retaining profile 31 its properties of flexibility and elasticity.

More specifically, the retaining profile 31 functions as a compression spring: in the absence of external stress, the free end of the first flange 32 is at a distance from the free end of the second flange 33 by one value. determined initial When the two wings 32, 33 are brought closer to each other by exerting a compressive force, that is to say when the distance between the free ends of the two wings 32, 33 is reduced, the deformability and the elasticity of the fold zone imply a return force tending to bring the distance between the free end two wings 32, 33 to its initial value.

Thus, when it is at rest, unsolicited, in the absence of external stress, in the so-called unlocked position, the holding profile 31 adopts an open natural position in which the spacing E at the free end of its wings 32, 33 is greater than the width LO of the opening delimited between the outer branch 12 and the inner branch 14 of said base section 11 comprising the receiving housing. Of course, the retaining profile 31 as illustrated may have a different section while maintaining its functionality. Figure 6 illustrates more particularly the principle of operation of the clamping system. It must be mounted in a base profile 11 before the implementation of the coating 1 by maintaining it under compressive stress between the outer branch 12 and the inner branch 4 of the base profile 11. More specifically, according to the method of embodiment illustrated in Figure 6 wherein the clamping system 30 comprises the holding profile 31, to perform the mounting operation, the operator grasps the holding profile 31 with one hand or both hands depending on its length , superimposed on the base profile 11 so that the opening of the V looks at the base profile 11, the closer to the base section 11 by making a translational movement substantially perpendicular to the bottom 15, puts in contact the end of the first flange 32 against the outer branch 12 of the base profile 11 by constraining it so as to bring the two flanges 32, 33 and reduce their spacing E, continues its translational movement to embo ter the second flange 33 in the second groove 17 of base section 11 to the bottom. The depth of the second groove 17 is defined to provide a free space between the bottom of the first groove 16 and the first flange 32 of the holding profile 31 to freely accommodate the surplus 3 of the coating 1. The height of the intermediate branch 13 of the base profile 11 is smaller than the other two but sufficient to ensure the locking of the second flange 33 of the retaining profile 31 without interfere with its operation.

In this position, the first flange 32 is held under stress in the first groove 16, and the second flange 33 is locked in position in the second groove 17 of the base profile 1 1. Due to the elasticity of the retaining profile 31 under compressive stress, the wings 32, 33 exert opposite pressure forces against the outer branches 12 and inner 14 which thus ensure a maintenance and an effective clamping of the retaining profile 31 made integral with the base profile 11.

The mounting of the lining 1 requires a traditional insertion tool 7, namely a flat blade tool 8, commonly called a spatula whose shape is rather rounded so as not to hurt the coating 1. Figure 5 illustrates the insertion mode of the peripheral edge 2 of the coating 1 in the base profile 11 by introducing force to overcome the clamping system 30, the blade 8 of the insertion tool 7 which accompanies said peripheral edge 2 in the first groove 16 between the branch 12 of the base profile 11 and the first flange 32 of the holding profile 31 to the bottom of said first groove 16. When removing the blade 8 of the insertion tool 7, the clamping system 30 returns to initial position, that is to say that the first flange 32 of the retaining profile 31 returns to contact with the outer branch 12 and pinches the peripheral edge 2 of the liner 1 by pinching, the surplus 3 being housed and retained at the rear of this wing in the bottom of said first groove 16.

Disassembly of the coating requires a protruding tongue (not shown) of at least one of the peripheral edges 2 of the coating 1, which remains outside the fastening frame 10 after mounting the coating 1. When the operator wishes to replace the coating 1 to change visuals or update it, he just needs to pulling on the projection tongue to extract the peripheral edge 2 of the coating 1 of the base profile 11 by performing a translational movement substantially perpendicular to the plane defined by said fastening frame 10. During this extraction movement, the surplus 3 of the coating 1 stored in the bottom of the first groove 16 of the base profile 11, carries with it the retaining profile 31, disengaging its second flange 33 of the second groove 17 of the base section 11. Indeed, as the retaining profile 31 is under compression stress between the outer branch 12 and the inner branch 14 of the base profile 11, the extraction movement tends to move the flanges 32, 33 of the retaining profile 31 in the direction of the return force of the retaining profile 31 under compressive stress. The withdrawal of the retaining profile 31 is facilitated. The free end of the first flange 32 may be rounded to further facilitate the withdrawal of the retaining profile 31 and further limit the risk of damaging the coating 1. Once a portion of the liner 1 released, simply extract by hand the rest of the peripheral edges 2 and holding profiles 31.

The extraction of the coating 1 and the retaining profile 31 is thus performed by the extraction movement accompanied by the return force of the retaining profile 31, so that the coating 1 and the retaining profile 31 are not damaged. during extraction, and both can be reused. Costs of implementing care

10 of fixing are thus reduced.

It is clear from this description that the invention achieves the goals set, namely a quick and easy assembly and disassembly system of a flexible coating on a fastening frame, simple, safe, accessible to anyone unqualified, without damaging the coating being that it is kept under tension in said fastening frame via the clamping system 30 reported between smooth surfaces, without relief or notching. The clamping system 30 operates under compressive stress when it is inserted on the frame, between the outer branch 12 and the inner branch 14, and by the single return force, it carries out both the retention of the coating in the frame. , blocking it against the outer branch 12, and its own restraint on the frame. Only this return force must be overcome to extract both the pinch system 30 and the coating 3 of the frame 10.

The shape of the clamping system 30 can then be simple, no relief, no projection or no notching being required, so that it can easily be manufactured in a single step for example extrusion, reducing manufacturing costs.

The present invention is totally out of specificities on the coating 3. In particular, it is not necessary to set up stiffening means of one or more edges.

The present invention is not limited to the embodiments described but extends to any modification and variation obvious to a person skilled in the art.

Claims

claims

1. A method of mounting a flexible covering (1) stretched on a fastening frame (10), said fastening frame comprising an assembly of rigid base profiles (11), each base section (11) having a first groove Longitudinal arrangement (16) constituting a receiving housing for a peripheral edge (2) of said covering (1), and having an outer limb (12) and an inner limb (14), characterized in that, before mounting said cladding (1); on said fixing frame (10), a pinch system (30) is added to each base profile (11), the pinch system (30) being inserted under compressive stress between the outer branch (12). and the inner branch (14) of the base profile (11), said clamping system (30) being arranged to retain said peripheral edge (2) in said receiving housing, said clamping system (30) being removable and comprising minus a separate and separate piece of said base profiles (11) and said coating (1), and in that, for mounting said coating (1) on said attachment frame (10), the peripheral edge (2) of said covering is introduced into said housing receiving against compression of said nip system (30) using an insertion tool (7).

2. A method of assembly according to claim 1, characterized in that to achieve said clamping system (30), using profiles (31) for holding, each section (31) of maintenance having a first flange (32) and a second wing (33) extending in two directions parallel to each other, the first flange (32) of the retaining section (31) coming into contact with the outer branch (12) of the base section (11) and the second wing ( 33) of the holding profile (31) coming into contact with the inner limb (14) of the base profile (11).

3. A method of assembly according to claim 1 or claim 2, characterized in that, to achieve said clamping system (30), one uses flexible retaining profiles (31), in that one fits on the least one retaining profile (31) on each base profile (11), said retaining profile (31) comprising at least one first flange (32) which is inserted under stress in said receiving housing so that it co-operates with a fixed branch (12) of said base profile (11) and clamps the coating (3).

4. Mounting method according to claim 2, characterized in that one uses a base profile (11) provided with a second longitudinal groove (17) extending in a direction parallel to that of the first groove (16). ), and in that a holding profile (31) is used comprising a first flange (32) and a second flange (33) extending in two directions parallel to each other, the first flange (32) cooperating with said first groove (16) for forming said clamping system (30), and the second flange (33) being nested in said second groove (17) of said base profile (11) to create a fixed and removable connection of said holding profile ( 31).

5. Mounting method according to claim 3, characterized in that one uses a retaining profile (31) having a section in the shape of Y or U.

6. Mounting method according to any one of the preceding claims, characterized in that there is provided on said flexible coating (1), a tongue protruding on at least one of its peripheral edges (2), this tongue being arranged to remaining accessible outside said fixing frame (10) after mounting said coating (1), and in that for removing said covering (1) from said fixing frame (10), pulling said tab to extract said corresponding peripheral edge (2) of said base profile (11), carrying with it said corresponding retaining profile (31) which disengages from said base profile (11) and allows disassembly of said coating (1).

7. Mounting method according to any one of the preceding claims, characterized in that one assembles said base profiles (11) together to create an autonomous and self-supporting mounting frame (10).

8. Mounting method according to any one of claims 1 to 5, characterized in that it assembles each base section (11) end to end on a frame (6) to create a fastening frame (10) with autonomous and self-supporting frame.

9. Mounting method according to any one of claims 1 to 5, characterized in that it assembles each base section (11) end to end on a support wall (5) to create a fastening frame (10). ) superimposed on said support wall (5).

10. Mounting method according to any one of the preceding claims, wherein the coating (1) is free of stiffened edge.

11. Fastening frame (10), for implementing the mounting method according to any one of the preceding claims, said fastening frame (10) comprising an assembly of rigid base profiles (11), each basic section (11) having a first groove (16) constituting a receiving housing for a peripheral edge (2) of said covering (1) and having an outer branch (12) and an inner branch (14), characterized in that the frame comprises in addition a clamping system (30) attached directly to each base section (11), arranged to be inserted under compressive stress between the outer branch (12) and the inner branch (14) of the base section (11), and arranged to retain said edge device (2) in said receiving housing when mounting said coating (1), said clamping system (30) being removable and comprises at least one separate part and separate from said base profiles (11) and said coating (1).

12. Fixing frame according to claim 11, characterized in that said clamping system (30) comprises profiles (31) for holding, each profile (31) for retaining having a first flange (32) and a second flange (33). ) extending in two directions parallel to each other, the first flange (32) of the retaining profile (31) coming into contact with the outer branch (12) of the base profile (11) and the second flange (33) of the profile holding member (31) engaging the inner limb (14) of the base profile (11).

13. Fastening frame according to claim 11, characterized in that said clamping system (30) comprises flexible retaining profiles (31), at least one retaining profile (31) being fitted on each base section (11). , and in that said holding profile (31) comprises at least one first flange (32) inserted under stress into said receiving housing so that it cooperates with a fixed branch (12) of said base profile (11) and forms with it said pinch system (30).

Fastening frame according to claim 11, characterized in that said base profile (11) has a second longitudinal groove (17) extending in a direction parallel to that of the first groove (16), and in that said holding profile (31) comprises a first flange (32) and a second flange (33) extending in two mutually parallel directions, the first flange (32) cooperating with said first groove (16) to be able to pinch the coating (3), and the second flange (33) being fitted into said second groove (17) of said base profile (11) to create a fixed and removable connection of said holding profile (17).

15. Fixing frame according to any one of claims 12 to 14, characterized in that said retaining profile (31) has a V-shaped section or U.

16. Fixing frame according to claim 14, characterized in that the first groove (16) and the second groove (17) of said base section (11) are parallel.

17. Fixing frame according to claim 16, characterized in that the second groove (17) of said base profile (11) has a depth less than that of the first groove (16).

Fastening frame according to claim 14 or claim 15, characterized in that the second groove (17) of said base profile (11) has a width smaller than that of the first groove (16).

19. Fixing frame according to any one of claims 11 to 18, characterized in that it comprises an assembly device arranged to assemble said base profiles (11) between them and create a fastening frame

(10) autonomous and self-supporting.

20. Fixing frame according to any one of claims 11 to 18, characterized in that said base profiles (11) further comprise a fastening lug (18) extending longitudinally for attachment to a support wall (5) or a frame (6).