FR2715682A1 - Support section for supporting and tensioning false ceiling or wall - Google Patents

Abstract

The section (1) has a pivoting (4a) which is fastened by a screw against the wall (5) against which the section is leaned. The plane to which the section is leant is perpendicular to the plane of the surface to be covered by the false ceiling. A web (6a,b) connected to the pivot has a joint (7) at its end (6a) which forms a support to wedge the edge (3) of the false ceiling (2) between the support and the plane. The other web end (6b) forms a surface on which a manual pressure is exerted so that the entire web tips to space the first web end from the plane and facilitates placing and wedging the edge or freeing it after wedging. The joint (7) is made of elastic material and/or deformable plastics and ensures continuity of support in the corner when the sections are not joined.

Description

PROFILE TO SUPPORT AND HOLD A FALSE CEILING
OR A FALSE WALL
The present invention relates to a profile used to support and maintain in tension a false ceiling or a false wall made of a sheet of plastic or fabric.

Generally the sheet of plastic or fabric is stretched between two opposite edges that are substantially rectilinear, in particular between two walls to form a false ceiling. The plastic sheet is usually attached to a border that is both flexible and rigid, the cross section of which is in the form of a hook or harpoon which engages on a shoulder produced on supports fixed directly to the walls or against the ceiling.

 It is known that many profiles generally made of extruded materials have been used as supports comprising a shoulder on which the edge of the plastic sheet is gripped. The cross sections of these borders have a few variations in their construction so as to ensure their attachment function. The cooperation, of the hook formed by the border, and of the shoulder formed on the profile makes it possible to support and keep in tension the false ceiling or the false wall.

The major difficulty, conditioning the design and production of the profile and the integral border of the plastic sheet, lies in the installation, hanging, tensioning of the false ceiling or false wall but also the stall when it turns out to be necessary.

Generally the material constituting the plastic sheet elongates when the temperature rises. This is the reason why on the one hand the dimensions of the false ceiling or the false wall are, before installation, slightly smaller than the finished dimensions and that on the other hand it is essential to strongly heat the false ceiling or the false wall in installation course as well as the room in which one and / or the other must be installed.

The installation conditions are not very comfortable not only because of the high temperature of the room, but also because the operator, in particular for installing a false ceiling, is most often placed under this false ceiling to hang it on the profiles. fixed against the walls.

In order to improve these installation conditions and thus facilitate the installation of the false ceiling or false wall, various improvements protected by patents have been proposed.

They notably focused on the adaptation of the profile so as to facilitate the introduction, the installation, the attachment of the edge.

For this purpose, we can cite a rounded surface (BLICK patent
FR.A. 2,078,579) so that the edge slides before it gets stuck or cut sides playing an equivalent role (Brevets ANTHONIOZ FR.A. 2,310,450 and SHERRER FR.A.2,475.093), or recesses on the shoulder in order to limit the hanging length and to proceed in stages (the last 2 patents cited).

Furthermore, the spacing of the profiles from the surface of the wall on which they are fixed constitutes an unsightly spacing which has given rise to various and varied solutions such as the installation of a compensation profile obscuring the attachment system of the border (RUHLMAN patent FR-A 2,624,167).

Other solutions combine aesthetics with the need to attach the false ceiling to the cU ~ -e the room and propose either to use the junction of the strips to ensure the suspension of the plastic sheet on the ceiling (Patent SHERRER EP.0.137.086) either to put on covers or hubcaps fixed on the profiles (Patents
IMPERIAL CHEMICAL FR.A. 2,202.997, SCHERRER EP. 0.338.925).

However, these profiles are generally expensive either because they require a resumption of machining to achieve a recess necessary for the installation of the false ceiling or false wall or because each made for a specific use it is necessary to have several types of profiles for a specific use. This is how, to produce profiles at competitive prices, most manufacturers offer plastic profiles.

However, these profiles, which are less rigid than the metal profiles, are weakened by these recesses.

Whatever the edge attachment system used, using a hook and recesses or a bracing system on the shoulder, the installation operation remains delicate. The same applies to the removal required by maintenance or repair operations on electrical installations, water supply, heating, air conditioning. It is then a question of unhooking the edge of the shoulder on which it is stowed without damaging the plastic sheet.

These poses and removals are made more difficult when the design of the profiles makes it difficult to introduce spatula blades to carry out these operations, in particular at the edges of the walls.

In addition, the production of hooks on the edge of the false ceiling or false wall is a delicate operation carried out with significant means on sheets of plastic material to dimensions taking into account the expansion necessary to carry out the installation.

This is one of the reasons why other solutions have been proposed which are freed from the production of borders.

In this context, we can cite the use of two profiles, one being fixed, presenting a cavity in which the other is embedded by wedging the sheet formed by the plastic sheet or the fabric (BERNARDY patent and CHARTRAIN FR.A.

2,537,112 and SEASE US Patent 4,788,806). The jamming of the tablecloth can be obtained using a rod and the cooperation of the two profiles (addition certificate TOMBU FR.A.

2,228,923). The production of two profiles of complex shapes makes these solutions expensive.

In a simpler way using a single profile it is possible to wedge the sheet, taking advantage of the elasticity of a wing of this profile (BASLOW US Patent 4,625,490).

However, this profile seems more suitable for: fabric than for plastic sheet. In addition if the installation requires a specialized spatula, the removal is difficult to envisage without damaging the sheet of fabric, in particular the angles are liable to deteriorate.

Consequently, it is a question of producing a profile, if possible unique, inexpensive, eliminating the need for a hook to hang the edge of the sheet and especially in the corners. Installation and removal must be easy without damaging the sheet made up of the plastic sheet or the fabric. The sheet or fabric must cover the profile so as to make it invisible for aesthetic reasons. The angular realizations must however be facilitated.

The assembly of two identical profiles must also allow to suspend a false ceiling in the middle of a room. This assembly and the joining of the plastic sheet or fabric must be aesthetic, invisible without the use of covers or hubcaps.

From a decorative point of view, this type of profile must allow false ceilings or false walls to be combined with parts of the ceiling or wall made up of panels or boxes of different materials such as paneling, glass or different uses such as lighting.

The present invention proposes to satisfy these objectives and to overcome the drawbacks of the prior art mentioned above.

Its purpose is precisely a profile to support and maintain in tension a false ceiling or a false wall made of a sheet of plastic or fabric, the edge of which is inserted and housed within the profile.

According to the invention, this profile comprises an articulation along a longitudinal axis substantially parallel to the plane to which said profile is backed, a wing, linked to this articulation, substantially orthogonal to the backing plane, one end of which is provided with a joint, forms a support intended to wedge the edge of the false ceiling or false wall between this support and the back-up plane, the other end of which constitutes a surface on which, by exerting pressure manually, the entire wing tips so as to spread the previous end of the wing of the backing plane and thus either facilitate the establishment of the edge to wedge it or release it after wedging.

Preferably the joint with which the end of the wing is provided is made of elastically and / or plastically deformable material so as to keep the edge wedged against the backing plane and to facilitate the junctions and angular guides of the false ceiling or of the false wall.

According to a preferred embodiment, the plane to which said profile is attached is perpendicular to the plane of the surface to be covered by the false ceiling or by the false wall.

Advantageously, the plane to which said profile is backed up consists of a heddle serving as a support for the articulation and comprising at its lower part ridges intended to promote jamming of the edge.

According to an alternative embodiment, symmetrically joined, linked together, either directly, or by means of a heald with identical symmetrical faces, two sections constitute a double section which linked to the ceiling makes it possible to support a false ceiling.

Thus according to the invention the false ceiling where the false wall consisting of a sheet of plastic or fabric is simply wedged against the wall to support a false ceiling, or against the ceiling to support a false wall. A heald, comprising, the support of the articulation or the articulation itself, as well as ridges, makes it possible to replace the backing plane of the profile in particular when the wall or ceiling constitutes a surface without roughness. Two symmetrical side rails, or a single rail with two symmetrical faces, allows to support a false ceiling practically essential when the surface of the ceiling is very large. The use of these two side rails or a single rail with symmetrical faces can be avoided by symmetrically leaning one profile against the other. This double profile can thus be suspended from the ceiling by conventional means such as chains, straps. In this case the constraint allowing the wedging of the edges is exerted on each of the joints, the opposite joint constituting the backing plane.

The invention therefore makes it possible to overcome the shoulder and various supports made on the profile. The function exercised by the profile being of a different nature, the embodiments which ensue are necessarily original. The use of an elastically and / or plastically deformable joint facilitates the angled joining of the profiles which then no longer need to be joined.

Preferably the border of the false ceiling or false wall is folded back on itself so as to constitute a bead facilitating the wedging of the border against the backing plane.

Advantageously, the bead comprises an attached harpoon so as to increase the wedging of the edge against the backing plane.

According to the invention, it suffices to engage, using a spatula, the edge of the plastic or fabric sheet between the end of the wing provided with a seal and the backing plane to maintain it. in position. The jamming of the edge results from the stress exerted on this wing.

However, to facilitate wedging, on the one hand it may be advantageous to use a heald having ridges, on the other hand to fold the border to form a bead. In addition, to engage the border between the joint and the back-up plane, a spatula is used which requires folding the border. To increase jamming, it is possible to make an attached harpoon or hook. This harpoon can be slipped into the fold of the border or welded to the border to replace the bead.

To facilitate the positioning of the edge within the profile to better wedge it is possible to press on the other end of the wing so that by tilting the entire wing the stress is thus reduced. This effort on the other end of the wing can be exerted through the false ceiling or the false wall.

According to a preferred embodiment, the articulation is blocked by a fixing means against the plane to which said profile is attached.

Advantageously, the stressing of the wing against the back-up plane is obtained by the combination, of the blocked articulation, of the shape and / or of the intrinsic elasticity of the material constituting the veil forming a connection between this wing and this articulation, and / or the interposition of an elastically deformable means exerting a pressure force on this veil so as to transmit this force on the wing pressed against the backing plane.

Thus, a rigid fixing of the profile against the backing plane formed by, the wall or the ceiling, a rail, or a symmetrical profile, makes it possible to stress the wing against the backing plane. It is the veil forming a connection between the wing and the articulation which makes it possible to create this constraint either by the shape adopted to make this veil either by using suitable materials or by the combination of the shape, of intrinsically elastic materials, or even interposed spring to increase the rigidity of the connection.

According to another embodiment, the articulation is constituted by a means of rotation along the longitudinal axis substantially parallel to the backing plane obtained by the production on the profile of a semi-cylindrical surface.

According to another alternative embodiment, the articulation is constituted by a means of rotation along the longitudinal axis substantially parallel to the back-up plane obtained by the production of C-shaped hooks open in opposite directions, one executed on the profile, the other on the stringer.

Advantageously, the stressing of the wing against the backing plane is obtained by an elastically deformable means interposed between the backing plane and a support substantially parallel to this plane so as to form a lever rocking around the articulation and transmit the force exerted by this means on the support to the wing pressed against the back-up plane.

According to the invention, the joint can be either in the form of a fixing means or in the form of a rotation means. In the latter case, two embodiments are proposed either by making a semi-cylindrical shape on the profile along a longitudinal axis substantially parallel to the back-up plane, or by making hooks. The function to be performed consists in transmitting a force produced from one side of the joint to the other side constituted by a wing substantially orthogonal to the plane of backing of the profile. The profile constitutes in a way a lever rocking around the articulation so that the force produced results in a stress exerted at the end of the wing provided with a seal intended to wedge the edge against the plane of backing.

The articulation in rotation is carried out either directly against the backing plane or by means of the arm.

In the latter case the rotation can be carried out either with the semi-cylindrical shape or using hooks. Whatever the rotation is achieved, the stress is applied using an elastically deformable means such as a spring or rubber seal intended to separate the support from the backing plane.

Other means equivalent to those described above ensuring the same function are within the scope of the present invention
Other characteristics and advantages will emerge from the description which follows of various embodiments of the present invention given by way of nonlimiting examples and with reference to the appended drawings in which - Figures 1 are schematic sectional views of profiles according to the invention, - Figures 2 are schematic sectional views of profiles according to other embodiments of the invention, - Figure 3 is a schematic sectional view of a profile whose backing plane is a smooth, - Figures 4 are schematic sectional views of sections suspended from the ceiling, - Figure 5 is a schematic sectional view of sections suspended from the ceiling using a rail.

There is shown in Figures la, lb and lc schematic sections of a profile 1 according to the invention made of alloy by extrudation.

The articulation 4a is blocked by screws against the wall 5 constituting the wall or the ceiling. The wing 6 substantially orthogonal to this wall bears against this wall by means of a seal 7 made of neoprene.

This joint has the particularity of ensuring the continuity of the angle support while the profiles are not contiguous, which facilitates the installation of the false ceiling or false wall. In the figure the web 12 constituted by an oblique rectilinear wing between the articulation 4a and the wing 6 is sufficiently elastic to ensure a stress on the edge 3 interposed between the joint 7 and the wall 5. This elasticity is simply obtained by the light alloy of small thickness constituting this veil 12.

An alternative embodiment of this veil is shown in Figure 1b. The elasticity is then obtained by a sinusoidal shape increasing the length of this veil 12 so as to give it more flexibility.

Another alternative embodiment is shown in Figure lc. The pressure stress exerted on the edge 3 interposed between the seal 7 and the wall 5 transmitted to the wing 6 by the web 12 is obtained by the combination, of the blocked articulation 4a, of the shape, of the elasticity of this veil, and the interposition on this veil 12 of a spring 19 held by a screw 20a and its washer 20b against the wall 5.

The position of this spring 19 of the screw 20a and its washer 20b can vary on the web 12 depending on the stress to be exerted. A position close to the blocked articulation 4a can possibly make it possible to remove the fixing screw of this articulation 4a.

In these figures a reinforcement 6c stiffens the assembly between the wing 6 and the veil 12.

In the figure the edge 3 introduced between the wall 5 and the seal 7 is folded back on itself to form the bead 10. While in Figure lb there is shown a variant of attachment of this edge 3 by fixing it directly by clip on the wall 5. This last embodiment is obviously only possible before the fixing of the profile 1 on the wall 5.

In these figures, the end 6b of the wing 6a, b, is slightly curved to avoid damaging the false ceiling or the false wall 2 in particular when it is necessary to unhook it by pressing this end 6b through the false ceiling 2 or the false wall to tilt the assembly 6.12 around the joint 4a and thus release the border 3 wedged between the joint 7 and the wall 5. As shown in these figures the false ceiling or the false wall thus arranged, the profile 1 according to the invention is invisible.

In Figures 2a and 2b there is shown in schematic section the profile 1 according to the invention comprising a rotary joint 4b. The veil 12 forming a connection between the articulation 4b and the orthogonal wing 6 is rectilinear oblique in FIG. 2a as in FIG. La while in FIG. 2b this same veil 12 makes a right angle with the wing 6 and the articulation 4b.

The elastically deformable means 15 intended to separate the support 16 from the backing plane 5 of the profile 1 is shown in the form of an elastic seal 15a of substantially rectangular section in FIG. 2a whereas in FIG. 2b a steel spring 15b plays this role. .

The support 16 of this means 15 is connected to the web 12 by a rotary articulation 4b in the form of a semi-cylindrical U 13b in FIG. 2b and in the form of an open semi-cylindrical U 13a in FIG. 2a. The lever formed by the support 16 and the web 12 rocks around the rotary joint 4b by pressing these hemispherical surfaces on the backing plane 5. The profile 1 is fixed against this backing plane by screws 13c. The holes allowing the screws to pass through are of sufficient diameter to allow a slight rotation. To facilitate this rotation, a hemispherical washer 13d made of nylon is interposed between the screw and the semicylindrical inner surface 13a, 13b.

In Figure 2a the wedging of the edge 3 against the backing plane 5 is facilitated by a bead 10 having a harpoon attached lla inserted between the folds of this bead. In FIG. 2b, the attached harpoon 11b is welded to the border 3.

There is shown in schematic section in Figure 3 the profile 1 backed by a smooth 8a made of extruded light alloy. Although it is possible to produce a rotary articulation 4b as shown in FIGS. 2 which would be leaning against this heddle 8a, we wanted to show another alternative embodiment consisting in using hooks 14.

These hooks are C-shaped open in opposite directions, one 14a is executed on the profile 1 the other 14b on the rail 8a.

These hooks 14 thus allow rotation of the rocking lever 12, 16 actuated by the elastic seal 15a.

The lower end of the heald 8a has longitudinal ridges 9 intended to promote the wedging of the edge 3. This heald 8a is fixed against the back-up plane 5 using screws not shown in this figure.

FIGS. 4a and 4b show the use of two profiles 1 according to the invention for suspending a false ceiling 2.

These profiles are joined symmetrically by their articulations 4 one blocked 4a the other in rotation 4b. The back-up plane is partly formed by a vertical beam 18a of light alloy linked to the ceiling by a chain or any other means in FIG. 4a. In FIG. 4b, the back-up plane is obtained by the different parts themselves of the profiles, the seals 7, the semi-cylinders 13b.

The double profile thus formed is linked to the ceiling by a horizontal rail 18b bearing on the supports 16.

Figure 5 shows in schematic section a double section, identical to that of Figure 3 joined together with a double rail 8b, used to suspend a false ceiling comprising as in this last figure the hooks 14. The double rail 8b serves both as a back-up plane 5 for the profiles 1 and as a support for ensuring the connection with the ceiling. All of these sections are covered by the sheet of plastic or fabric. They are therefore practically invisible, making the ends of the les more aesthetic.

Simple constructions and avoiding in most cases to realize before laying hooks on the edges these profiles are particularly economical and facilitate the installation and removal of false ceilings and false walls.

They respond well to the goals set.

Claims (12)

1). Profile (1) to support and maintain in tension a false ceiling (2) or a false wall made of a sheet of plastic or fabric, the edge (3) of which is introduced and housed within the profile, which is characterized by that it comprises an articulation (4) along a longitudinal axis substantially parallel to the plane (5) to which said profile is attached, a wing (6a, b), linked to this articulation, substantially orthogonal to the adjoining plane (5) , one end of which (6a), provided with a seal (7), forms a support intended to wedge the edge (3) of the false ceiling (2) or of the false wall between this support and the backing plane (5) , the other end of which (6b) constitutes a surface on which, by manually exerting pressure, the entire wing (6a, b) rocks so as to separate the preceding end of the wing (6a) from the backing plane ( 5) and thus either facilitate the establishment of the edge (3) to wedge it or release it after jamming. 2). Profile according to claim 1 characterized in that the seal (7) which the end of the wing (6a) is provided is made of elastically and / or plastically deformable material so as to keep the edge (3) wedged against the plane backing (5) and to facilitate the junctions and angular guides of the false ceiling (2) or the false wall. 3). Profile according to claim 1 characterized in that the plane (5) to which said profile (1) is attached is perpendicular to the plane of the surface to be covered by the false ceiling (2) or by the false wall. 4). Profile according to any one of the preceding claims, characterized in that the plane (5) to which said profile (1) is backed up consists of a heddle (8a) serving as support for the joint (4) and comprising at its lower part grooves (9) intended to promote jamming of the border. 5). Profiles according to any one of the preceding claims, characterized in that, symmetrically joined, linked together, either directly or by means of a heddle (8b) with identical symmetrical faces, two profiles (1) constitute a double profile which is linked on the ceiling supports a false ceiling (2). 6). Profile according to any one of the preceding claims, characterized in that the border (3) of the false ceiling (2) or of the false wall is folded back on itself so as to constitute a bead (10) facilitating the wedging of the border (3) against the back-up plan (5). 7). Profile according to Claim 6, characterized in that the bead (10) comprises an attached harpoon (11) so as to increase the wedging of the edge (3) against the backing plane (5). 8). Profile according to any one of the preceding claims, characterized in that the articulation (4) is blocked by a fixing means (4a) against the plane (5) to which said profile (1) is attached. 9). Profile according to claim 8 characterized in that the stressing of the wing (6) against the backing plane (5) is obtained by the combination of the locked joint (4a), the shape and / or intrinsic elasticity of the material constituting the veil forming a connection (12) between this wing (6) and this articulation (4a), and / or the interposition of an elastically deformable means exerting a pressure force on this veil ( 12) so as to transmit this force on the wing (6) pressed against the back-up plane (5). 10). Profile according to claim 1 characterized in that the articulation (4) is constituted by a rotation means (4b) along the longitudinal axis substantially parallel to the backing plane (5) obtained by the realization on the profile of a semi-cylindrical surface (13). 11). Profile according to any one of claims 4 or 5 characterized in that the articulation (4) is constituted by a rotation means (4b) along the longitudinal axis substantially parallel to the backing plane (5) obtained by the realization hooks (14a, b) in the form of C open in opposite directions, one executed on the profile (1), the other (14b) on the rail (8). 12). Profile according to any one of claims 10 or 11 characterized in that the stressing of the wing (6) against the backing plane (5) is obtained by means (15) elastically deformable interposed between the plane d 'backing (5) and a support (16) substantially parallel to this plane so as to form a rocking lever (12,16) around the joint (4b) and transmit the force exerted by this means (15) on the support (16) to the wing (6) pressed against the backing plane (5).