EP3762918B1 - Method for mounting a flexible covering stretched over a securing frame, and securing frame for carrying out such a method - Google Patents

Description

Technical area :

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

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

Prior technique:

The invention is particularly, but not exclusively, interested in the field of visual communication via advertising panels, promotional materials, etc. in the form of stretched textile frames ideally used for fairs, exhibitions, store windows, offices and professional premises, etc. These stretched textile frames are commonly made from printed canvases, provided around their perimeter with a sewn silicone seal. The frames are manufactured by assembling aluminum profiles, provided with a U-shaped groove adapted to receive the silicone seal of the printed canvas by nesting and to retain it by pinching. Thus, the printed canvas is fixed and stretched on the frame by forcefully fitting the silicone seal into the groove. This assembly has the advantage of being able to be carried out manually and without tools, by an unqualified person and without danger. To dismantle the canvas, use a tab provided on one side of the canvas, which remains accessible outside the frame and allows, by simple manual traction on the tab, to remove the silicone seal from the groove. This assembly and disassembly technique is very practical to use, accessible to anyone, safe, and allows the printed canvases to be replaced easily and quickly to change and update the communication visuals.

However, the manufacture of printed canvases for this type of application is restrictive 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 manufacturing, they must be reworked to add a silicone seal all along the peripheral edge of the canvas, generally by a sewing operation which is difficult to carry out and time-consuming.

This known technique is therefore not completely satisfactory.

The document WO 2013/079956 proposes to use a clamp on a frame in order 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 there. The clamp is mounted on a first wall of the frame by clipping: the clamp comprises two wings which grip 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 covering is then inserted between the projections and the second wall of the frame.

The document WO2013/079956 describes panels formed by a sheet of material, stretched over a frame.

The method described in this document therefore has the aforementioned drawbacks, since at least one edge must be stiffened.

In addition, removing the clamp turns out to be a delicate operation. In fact, the covering must first be removed by exerting force on it to free it from projections, at the risk of damaging it. Then only in a second step can the clamp be removed.

Presentation of the invention:

The present invention aims in particular to overcome these drawbacks by proposing an assembly method as well as a suitable fixing frame making it possible to simplify the manufacture of the flexible covering, while retaining the same advantages linked to the ease and speed of assembly and installation. dismantling of said covering on said fixing frame, allowing rapid change of visuals, easy handling for any unqualified person, easy and secure use, without deterioration of said covering which can be reused.

For this purpose, the invention relates to an assembly method of the type indicated in claim 1.

The pinching system under compression thus allows, by the sole return effort, both to be maintained on a base profile and to maintain an edge of the covering in the receiving housing. The installation and extraction of the coating and pinching system is simplified, and the risk of damaging the coating or the pinching system is reduced.

According to the invention, to produce said pinching system, retaining profiles are used. Each retaining profile comprises a first wing and a second wing extending in two mutually parallel directions, the first wing of the retaining profile coming into contact with the outer branch of the base profile and the second wing of the retaining profile coming into contact with each other. contact with the interior branch of the base profile.

In one form of the invention, to produce said pinching system, flexible holding profiles are used, and at least one holding profile is fitted onto each base profile, said holding profile comprising at least one first wing that the it is inserted under stress into said receiving housing so that it cooperates with a fixed branch of said base profile and forms with it said pinching system.

Advantageously, a base profile is used 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 wing and a second wing extending in two directions parallel to each other, the first wing cooperating with said first groove to form said pinching system, and the second wing being fitted into said second groove of said base profile to create a fixed and removable connection of said retaining profile. A retaining profile having a V- or U-shaped section is preferably used.

It is also 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 of said fixing frame after assembly of said covering, and to dismantle said covering from said frame. fixation, we advantageously pull on said tongue to extract said corresponding peripheral edge of said base profile, taking with it said corresponding holding profile which disengages, thanks in particular to the return force of the pinching system under compression, from said base profile and allows the dismantling of said coating.

According to one embodiment, the covering does not have a stiffened edge.

To create an independent and self-supporting fixing frame, said base profiles can be assembled together, or assembled end to end on a specific chassis.

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

For this purpose also, the invention relates to a fixing frame of the type indicated in claim 10

In a preferred form of the invention, said pinching system comprises flexible holding profiles, at least one holding profile being fitted onto each base profile, said holding profile comprising at least one first wing inserted under stress into said housing reception so that it cooperates with a fixed branch of said base profile and forms with it said pinching 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 wing and a second wing extending in two directions parallel to each other, the first wing cooperating with said first groove to form said pinching system, and the second wing being fitted into said second groove of said base profile to create a fixed and removable connection of said retaining profile.

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

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

Depending on the application envisaged, the fixing frame may include an assembly device arranged to assemble said base profiles together and create an autonomous and self-supporting fixing frame. The base profiles may also include a longitudinally extending fixing bracket allowing them to be fixed to a support wall or a specific chassis.

Summary description of the drawings:

• la figure 1 est une vue en perspective d'un exemple de cadre de fixation autoportant selon l'invention,
• la figure 2 est une section d'un profilé de base entrant dans la fabrication du cadre de la figure 1,
• la figure 3 est une vue en perspective d'un profilé de maintien entrant dans la fabrication du cadre de la figure 1,
• la figure 4 est une vue en perspective du profilé de base de la figure 2 fixé sur une paroi,
• la figure 5 est une vue en coupe d'un cadre de fixation monté sur une paroi, montrant la mise en place d'un revêtement souple, et
• la figure 6 est une vue agrandie du détail A de la figure 5 montrant le maintien dudit revêtement souple dans ledit cadre de fixation.

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:

• there figure 1 is a perspective view of an example of a self-supporting fixing frame according to the invention,
• there figure 2 is a section of a base profile used in the manufacture of the frame of the figure 1 ,
• there Figure 3 is a perspective view of a retaining profile used in the manufacture of the frame of the figure 1 ,
• there Figure 4 is a perspective view of the base profile of the figure 2 fixed to a wall,
• there Figure 5 is a sectional view of a fixing frame mounted on a wall, showing the installation of a flexible covering, and
• there Figure 6 is an enlarged view of detail A of the Figure 5 showing the retention of said flexible covering in said fixing frame.

Illustrations of the invention and different ways of carrying it out :

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

With reference to the figures, the invention relates to a fixing frame 10 allowing the assembly and disassembly of a flexible covering 1 stretched over said frame, to create in particular but not exclusively an advertising panel, a promotional support, or the like, used in visual communication, decoration, etc. for example at fairs, exhibitions, shop windows, offices and professional premises, private premises, etc. The invention is of course not limited to this application, and extends to the creation of ambient boxes, false wall slabs, false ceilings, double wall walls, separation panels, or the like. .

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

The flexible covering 1 can be of any material compatible with the use, more or less extensible, such as a coated or uncoated woven fabric, a coated or uncoated non-woven fabric, 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 fixing frame 10 so that its peripheral edges 2 protrude sufficiently from said frame so that they can be introduced inside the base profiles 11 while still having space. a surplus 3 of covering inside said base profiles 11 (see Figure 6 ). Thus, according to the assembly method of the invention, the format of the coating 1 does not need to respect strict and restrictive tolerances. The coating 1 is also devoid of stiffened edges, reducing the manufacturing costs of the coating 1.

Indeed, the assembly method of the invention is innovative and stands out from known assembly methods, in that the fixing frame 10 comprises a system removable pinching device 30 which makes it possible to keep the covering 1 under tension, but which is neither secured to the base profiles 11, nor secured to the peripheral edges 2 of said covering 1. This pinching system 30 is obtained in particular by holding profiles 31 additional, which are attached to the base profiles 11 before the assembly of the covering 1. They are removable relative to the base profiles 11 and thus make it possible to facilitate the assembly and dismantling of the covering 1, without technical difficulty, and without danger , these operations can be carried out by any person, without any particular qualification.

The basic profile 11 used in the invention is illustrated more particularly in figures 2 And 4 to 6 . It is made from an elongated, rectilinear and rigid part, preferably obtained by extrusion of a metallic material, such as, for example, aluminum or any other light metal alloy, but also from a reinforced synthetic material, a composite material or a combination of these materials, the material used being preferably non-corrosive and the profile obtained preferably offering good resistance to bending under normal conditions of use.

In the example shown, the base profile 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 interior branch 14. The relative terms “exterior” and “interior” are understood with regard to said fixing frame 10 ( figures 5 And 6 ), and correspond to the exterior side of the frame not having a coating and the interior side of the frame having 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 receiving housing for a peripheral edge 2 of the covering 1. It thus has a width L1, defined as being the distance between the outer branch 12 and the branch 13 intermediate, and a depth P1 adapted to receive the pinching system 30 and the peripheral edge 2 as well as the surplus 3 of said covering 1. A second groove 17 is defined between the intermediate branch 13 and the interior branch 14 and forms a fixing zone for a holding 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 P2 adapted to the corresponding zone of said holding profile 31. In the example illustrated, 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 from the 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 L0 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 P0 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 designed to be at least flush with the covering 1 when it is mounted and stretched on the fixing frame 10 (see Figure 5 And 6 ). Indeed, it constitutes the exterior face of the fixing frame 10 when the latter is self-supporting according to the 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 the grooves 16, 17 may be suitable.

The base profile 11 further comprises at least one fixing tab 18 which extends longitudinally and in the extension of the bottom 15, perpendicular to said branches 12, 13 and 14. This fixing tab 18 comprises perforations 19 distributed, preferably regularly, over the length of said profile to receive fixing screws 20 used to fix the base profile 11 on a support wall 5 or on a frame 6 as illustrated in the figures 1 And 4 . The basic profile 11 also comprises on said fixing bracket 18 reinforcing grooves 21 contributing to the stiffening of the profile, particularly in the direction of the bending forces. Of course, the basic profile 11 as illustrated can have a different section while retaining its functionality. It may in particular include an enlarged section integrating a base or the like, allowing it to be a self-supporting profile on its own.

The pinching system 30 operates under compressive stress, that is to say it is inserted on the base profile 11 while being under compression, so that the restoring force ensures both the maintenance of the system 30 pinching on the base profile 11 and maintaining the covering 3 on the base profile 11.

In the following, we present the example according to which the pinching system 30 comprises one, in practice a plurality, of holding profile 31, which each cooperates with a base profile 11, a base profile 11 being able to cooperate with several retaining profiles 31.

The retaining profile 31 used in the invention is illustrated more particularly in figures 3 , 5 And 6 . It is made from an elongated, rectilinear, flexible part, preferably obtained by extrusion of a synthetic material, such as, for example, polyvinyl chloride (PVC) or any other equivalent material. In particular, the retaining profile 31 comprises two longitudinal wings 32, 33, a first wing 32 and a second wing 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 a U, giving the retaining profile 31 its properties of flexibility and elasticity.

More precisely, the retaining profile 31 functions as a compression spring: in the absence of external stress, the free end of the first wing 32 is at a distance from the free end of the second wing 33 of a value initial determined. 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 The elasticity of the fold zone involves a restoring force tending to reduce the distance between the free end two wings 32, 33 to its initial value.

Thus, when it is at rest, unstressed, in the absence of external constraint, in the so-called unlocked position, the retaining profile 31 adopts a natural open position in which the spacing E at the free end of its wings 32, 33 is greater than the width L0 of the opening delimited between the outer branch 12 and the inner branch 14 of said base profile 11 comprising the receiving housing. Of course, the retaining profile 31 as illustrated can have a different section while retaining its functionality.

There Figure 6 illustrates more particularly the operating principle of the pinching system 30. This must be mounted in a base profile 11 before the installation of the covering 1 while maintaining it under compressive stress between the exterior branch 12 and the interior branch 4 of the base profile 11. More precisely, according to the mode of realization illustrated on the Figure 6 in which the pinching system 30 comprises the holding profile 31, to carry out the assembly operation, the operator grasps the holding profile 31 with one hand or both hands depending on its length, superimposes it on the holding profile base 11 such that the opening of the V looks at the base profile 11, brings it closer to the base profile 11 by making a translation movement substantially perpendicular to the bottom 15, brings the end of the first wing 32 into contact against the outer branch 12 of the base profile 11 by constraining it so as to bring the two wings 32, 33 together and reduce their spacing E, continues its translation movement to fit the second wing 33 into the second groove 17 of said base profile 11 until basically. 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 wing 32 of the retaining profile 31 for freely accommodate the surplus 3 of the covering 1. The height of the intermediate branch 13 of the base profile 11 is lower than the other two but sufficient to ensure the blocking of the second wing 33 of the retaining profile 31 without hindering its operation.

In this position, the first wing 32 is held under stress in the first groove 16, and the second wing 33 is locked in position in the second groove 17 of the base profile 11. Thanks to the elasticity of the retaining profile 31 under stress compression, the wings 32, 33 exert opposite pressure forces against the outer 12 and inner 14 branches which thus ensure effective holding and pinching of the holding profile 31 made integral with the base profile 11.

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

Dismantling the covering requires a protruding tab (not shown) from at least one of the peripheral edges 2 of the covering 1, which remains outside the fixing frame 10 after assembly of the covering 1. When the operator wishes to replace the covering 1 to change the visual or update it, all you have to do is pull on the protruding tongue to extract the peripheral edge 2 of the covering 1 from the base profile 11 by carrying out a translation movement substantially perpendicular to the plane defined by said fixing frame 10. During this extraction movement, the surplus 3 of the covering 1 stored in the bottom of the first groove 16 of the base profile 11, takes with it the retaining profile 31, by dislodging its second wing 33 from the second groove 17 of the base profile 11. Indeed, like the retaining profile 31 is under compressive stress between the outer branch 12 and the inner branch 14 of the base profile 11, the extraction movement tends to separate the wings 32, 33 of the retaining profile 31, in the direction of the restoring force of the retaining profile 31 under compressive stress. Removal of the retaining profile 31 is made easier. The free end of the first wing 32 can be rounded in order to further facilitate the removal of the retaining profile 31 and further limit the risks of damaging the covering 1.

Once part of the covering 1 has been released, simply extract the rest of the peripheral edges 2 and the retaining profiles 31 by hand.

The extraction of the covering 1 and the retaining profile 31 is thus carried out by the extraction movement accompanied by the return force of the retaining profile 31, so that the covering 1 and the retaining profile 31 are not damaged during extraction, and can both be reused. The costs of implementing the fixing care 10 are thus reduced.

It is clear from this description that the invention makes it possible to achieve the set goals, namely a quick and easy assembly and disassembly system for a flexible covering on a fixing frame, simple, safe, accessible to anyone. unqualified, without damaging the coating being that it is kept under tension in said fixing frame via the attached pinching system 30, between smooth surfaces, without relief or notching.

The pinching 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 sole return effort, it achieves both the retention of the covering in the frame , by blocking it against the outer branch 12, and its own retention on the frame. Only this return effort must be overcome to extract both the pinching system 30 and the covering 3 from the frame 10.

The shape of the pinching 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 completely dispenses with any specifics on the coating 3. In particular, it is not necessary to put in place means for stiffening one or more edges.

Claims (13)

1. A method for mounting a flexible canvas (1) stretched over a fixing frame (10), said fixing frame comprising an assembly of rigid base profiles (11), each base profile (11) comprising a first longitudinal groove (16) constituting a receiving housing for a peripheral edge (2) of said covering (1), and comprising an outer branch (12) and an inner branch (14), wherein, before mounting said canvas (1) on said fixing frame (10), a clamping system (30) is added to each base profile (11), wherein for obtaining said clamping system (30), holding profiles (31) are implemented, each holding profile (31) comprising a first wing (32) and a second wing (33) which extend in parallel directions, the first wing (32) of the holding profile (31) being brought against the outer branch (12) of the base profile (11) and the second wing (33) of the holding profile (31) being brought against the inner branch (14) of the base profile (11),
   Characterized in that the clamping system (30) is inserted under compressive constraint by bringing closer the first wing (32) and the second wing (33) 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 at least one distinct and separate part of said base profiles (11) and said canvas (1), and in that, in order to mount said canvas (1) on said fixing frame (10), the peripheral edge (2) of said canvas is introduced into said receiving housing against the compression of said pinching system (30) using an insertion tool (7), said peripheral edge (2) being inserted between the outer branch (12) of the base profile (11) and the first wing (32) of the holding profile (31) to the bottom of said longitudinal groove (16), so that the return force of the holding profile (31) ensures both the holding of the clamping system (30) on the base profile (11) and the maintenance of the canvas (3) on the base profile (11).
2. Mounting method according to claim 1, characterized in that, to achieve said clamping system (30), one uses holding profiles (31) flexible, in that one fits the at least one holding profile (31) on each base profile (11), said holding profile (31) comprising at least a first wing (32) which is inserted under constraint into said receiving housing so that it cooperates with a fixed branch (12) of said base profile (11) and clamps the canvas (3).
3. Mounting method according to claim 1 or 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 the first wing (32) cooperates with said first groove (16) to form said clamping system (30), and the second wing (33) being fitted into said second groove (17) of said base profile (11) to create a fixed and removable connection of said holding profile ( 31).
4. Mounting method according to any of the preceding claims, characterized in that a holding profile (31) having a V-shaped or U-shaped section is used.
5. Mounting method according to anyone of the preceding claims, characterized in that there is provided on said flexible canvas (1), a protruding tab on at least one of its peripheral edges (2), this tab being arranged for remaining accessible outside said fixing frame (10) after mounting said canvas (1), and in that to remove said canvas (1) from said fixing frame (10), said tab is pulled to extract said corresponding peripheral edge (2) of said base profile (11), taking with it said corresponding holding profile (31) which disengages from said base profile (11) and enables said canvas (1) to be removed.
6. Mounting method according to anyone of the preceding claims, characterized in that said base profiles (11) are assembled together to create a fixing frame (10) that is autonomous and self-supporting.
7. Mounting method according to any one of claims 1 to 4, characterized in that one assembles each base section (11) end-to-end on a frame (6) to create a fixing frame (10) with autonomous and self-supporting frame.
8. The assembly method according to any one of claims 1 to 4, characterized in that each base section (11) is assembled end-to-end on a support wall (5) to create a fixing frame (10) superimposed on said support wall (5).
9. The mounting method according to any one of the preceding claims, wherein the canvas (1) has no stiffened edge.
10. Fixing frame (10), for the implementation of the mounting method according to any one of the preceding claims, said fixing frame (10) comprising an assembly of rigid base profiles (11), each base profile (11) comprising a first groove (16) constituting a receiving housing for a peripheral edge (2) of said canvas (1) and comprising 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 profile (11), in that said clamping system (30) comprises holding profiles (31), each holding profile (31) comprising a first wing (32) and a second wing (33) which extend in parallel directions, the first wing (32) of the holding profile (31) being brought against the outer branch (12) of the base profile (11) and the second wing (33) of the holding profile (31) being brought against the inner branch (14) of the base profile (11), said clamping system (31) being adapted to be inserted under compressive constraint by bringing closer the first wing (32) and the second wing (33) between the outer branch (12) and the inner branch (14) of the base profile (11), and adapted to retain said peripheral edge (2) in said receiving housing when said canvas (1) is mounted, said clamping system (30) being removable and comprising at least one distinct and separate part of said base profiles (11) and said canvas (1).
11. Fixing frame according to claim 10, characterized in that said clamping system (30) comprises flexible holding profiles (31), at least one holding profile (31) being fitted onto each base profile (11), and in that said holding profile (31) comprises at least a first wing (32) inserted under stress in said receiving housing so that it cooperates with a fixed branch (12) of said base profile (11) and forms with it said clamping system (30).
12. Fixing frame according to claim 10, characterized in that said base profile (11) comprises 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 wing (32) and a second wing (33) extending in two directions parallel to each other, the first wing (32) cooperating with said first groove (16) to be able to clamp the canvas (3), and the second wing (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).
13. Fixing frame according to any one of claims 10 to 12, characterized in that said holding profile (31) has a V-shaped or U-shaped section.

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