CA2755619C - False wall panel coating device with a rehabilitation device - Google Patents

Abstract

The invention concerns a tensioning device (13) for the canvas (7) of a rehabilitation device (1) for a removable panel (2), characterized in that it includes at least one structure (14), a thermal casing (15) placed inside the said structure (14) and capable of heating the said flexible canvas (7), an internal frame (17) elastically secured to the said thermal casing (15) and at least one actuator (16) secured to the structure (14) and capable of moving the thermal casing (15) so that it moves the thermal casing (15) on the one hand, between a canvas at rest position and a stretched canvas position and, on the other hand, the internal frame (17) between a canvas at rest position and an intermediate position located between the said canvas at rest and stretched canvas positions, the flexible canvas (7) being supported on a part of the thermal casing (15) and maintained by its peripheral edge between the internal frame (17) and the structure (14). The invention also proposes a coating process for a removable panel (2) implementing the tensioning device (13).

Description

- -DEVICE FOR COATING FALSE WALL PANELS WITH
A REHABILITATION DEVICE
Technical area The present invention relates to a setting device under tension of a canvas of a rehabilitation device of a removable panel of a false wall such that, for for example, a false ceiling and a false wall. The current The invention also relates to the method of coating a such panel implementing said device.
Prior art It is known for a long time false walls arranged parallel to a wall of the room so leave a residual space located between the wall of said room and said web. This residual space, also called velum, allows to house all unsightly equipment such as electrical cables, pipes, etc. These fake ones walls, including suspended suspended ceilings, removable panels suspended on a grid of profiles advantageously light alloy, or a sheet soft, generally opaque, deformed by tension so that its edges, provided with hooking means, can come attach to hanging rails fixed to the walls of the local for example.
With regard to removable panels, these are degrade with the losing time including their appearance original aesthetic. To remedy this problem, it is possible to change the degraded panel (s) and redo, if necessary, the cuts and holes present on the original panel (s). This method is especially when it is necessary to redo in the new panel the cutouts and any holes, but

- 2 -also expensive because you have to buy a new panel. In addition, the (or the) panel (x) original degraded are discarded or partially recycled what goes to against the current tendency to limit the volume of waste for obvious ecological reasons.
Presentation of the invention The present invention aims to remedy the various disadvantages described previously by proposing a device and a method for rehabilitate in a simple, fast and particularly aesthetic way removable panels at less partially degraded from a false wall.
In this respect, it is therefore proposed a tension device comprising at least least one structure, a thermal box disposed within said structure and adapted to heat said flexible fabric, an internal frame secured to elastic said thermal box, and at least one actuator integral with the structure and fit to put in motion the thermal box so as to move the box between a "canvas at rest" position and a "stretched canvas" position and the internal frame between a position "canvas at rest" and a position intermediate located between the said positions "canvas at rest" and "canvas stretched", the canvas flexible being resting on a part of the thermal box and maintained by its edge peripheral between the internal frame and the structure. The thermal box includes a hollow box of generally parallelepipedic shape containing at least one heat generator and comprising at least one lower face and one face upper part provided with a plurality of opening holes intended to leave pass evenly the heat generated by the heat generator. The box thermal includes an outer frame disposed on the top of its face superior and serving as support for the supple canvas so as to create a space residual between the fabric and said upper face, when the flexible fabric is stretched.

- 3 -Advantageously, the outer frame is made from profiles butt joints in the general shape of open L each comprising a first wing horizontal fixed to be in contact on the top of said upper face and a second wing serving as support for the canvas.
Advantageously, the internal frame comprises butted sections of generally rectangular section and is integral with said thermal box grace elastic fasteners.
Said internal frame advantageously comprises at least two sections opposites of sufficient size to abut on the structure, this 1.0 position defining the intermediate position.
According to a preferred embodiment, the internal framework comprises profiles for holding the fabric.
Preferably, the tensioning device comprises two actuators, each being of type a linear electric cylinder integrated in a guide stable.
Finally, the present invention also relates to a coating method of a removable panel of a false wall with a rehabilitation device according to the remarkable invention in that it comprises at least the following steps taken successively or not:
- powering up the flexible fabric with the tensioning device according to the invention;
- Establishment vis-à-vis at least two trim profiles respectively along two opposite zones of said peripheral edge of removable panel;
- application of the removable panel assembly-dressing profiles on the stretched canvas ;
- application of adhesive on the periphery of the whole

- 4 -removable panel-trim profiles;
- Cutting the excess of canvas protruding from the panel removable.
Advantageously, the power-up step of the canvas with the tensioning device includes the following steps :
- placement of the canvas on the thermal box and the internal frame, the thermal box and the frame internal being in position "canvas at rest";
- commissioning of heat generators;
- setting in motion the thermal box by at least an actuator from the position "canvas at rest" up to the intermediate position;
- setting in motion the thermal box by the actuator from the "intermediate" position to the position "stretched canvas" so as to power on the canvas.
Preferably, the adhesive application step is preceded by a step of rectification of the peripheral edge removable panel.
Brief description of the figures Other advantages and features will emerge better from the following description of several alternative embodiments, given as non-standard examples restrictive, flexible tensioning device according to the invention, with reference to the accompanying drawings on which ones :
- Figure 1 is a vertical section of the device according to the invention of a fabric of the device of rehabilitation of Figure 6, in position "canvas at rest ";
FIG. 2 is a vertical section of the device voltage of Figure 1, in a position

- 5 -intermediate;
FIG. 3 is a vertical section of the device tension of Figure 1, position "stretched canvas";
FIG. 4 is a vertical section of the device voltage of Figure 3, when approaching a removable panel of the flexible fabric;
FIG. 5 is a vertical section of the device voltage of Figure 3, when the removable panel is in contact with the flexible canvas;
- Figure 6 is a vertical section of the panel removable covered with soft cloth.
Best way to realize the technical invention FIG. 6 represents a device for rehabilitation 1 according to the invention of a removable panel 2 a false wall of a room such as, for example, a false ceiling or a false wall. Said removable panel 2 has an outer face 3 visible from the local, a inner face 4 located on the opposite side of the outer face 3 and a peripheral edge 5 joining the outer faces 3 and 4. The rehabilitation device 1 comprises at least one minus two trim profiles 6 whose vertical section is in the general form of C, preferably free ends are narrowed towards each other, and fixed vis-a-vis respectively along two zones opposed to the peripheral edge 5 of said removable panel 2, and a fixed fabric 7 stretched over the at least two sections 6. Preferably, covering profiles 6 form a closed frame fixed along the whole of said peripheral edge 5.
Each trim section 6 therefore comprises a core 8 and two wings 9 extending from the ends of said core 8, said wings 9 at an angle of between 0 and 45. When the trim profile 6 is fixed on the

- 6 -removable panel 2, the core B is in contact with the edge device 5 and the wings 9 are in contact, at least their free end, respectively with the faces external 3 and internal 4 (see figure 6). Each profile 6 is attached to the removable panel 2 by all appropriate means and / or techniques known to man Job. Thus, each covering profile 6 can, for example, example, be mounted forcibly, glued, nailed or screwed on the removable panel 2.
The flexible fabric 7 is advantageously extensible and made from sheet of polymer material such as polyvinyl chloride, said material being provided with many qualities such as: resistance to fire, airtightness as well as dust or humidity, ease of maintenance, acoustic performance etc. The fabric 7 is fixed stretched on the profiles 6 being at least resting on their wings 9 respectively in contact with the outer faces 3 and 4 of the removable panel 2. In addition, the canvas flexible 7 may be at least partially perforated for increase the sound absorption of the room.
With this configuration, we understand that the web 7 is not in contact with said outer face 3 and that the asperities and other hollow of the outer face 3 of the removable panel 2 are no longer visible. Indeed, if the canvas 7 was placed directly on the removable panel 2, we understand that the asperities would always appear after setting up the canvas 7 creating an aspect unsightly. This disadvantage is avoided by setting up on the removable panel 2 a trim profile 6 and in fixing the fabric 7 to said covering profile 6. The 7 is fixed on the profiles advantageously by an adhesive and more particularly by bonding by capillarity.

- 7 -To tighten the fabric 7 before fixing, we can pull by hand on the canvas 7 but to get a uniform and fast tension, we can advantageously use the tensioning device 13 shown on the Figures 1 to 5.
The tensioning device 13 comprises at least one structure 14, a thermal box 15 disposed inside of said structure 14, at least one actuator 16 and a internal frame 17 secured to said thermal box 15, said thermal box 15 being adapted to be placed in movement between a "canvas at rest" position and a position "canvas stretched" by said actuator 16.
The structure 14 is provided with at least one frame upper 18 globally tubular, a bottom 19 and a plurality of feet 20 connecting said upper frame 18 to background 19.
The thermal box 15 is a hollow box of shape globally parallelepipedic containing at least one heat generator (not shown) and comprising at less a lower face 151 and an upper face 152 provided with a plurality of opening orifices 153 for let pass uniformly, from the inside towards the outside of said thermal box 15, the heat generated by the heat generator (s).
Advantageously, the thermal box 15 contains two heat generators arranged inside said thermal box 15 at each of its ends longitudinal.
In addition, the thermal box 15 includes a frame outside 154 disposed on the top of his face 152. This outer frame 154 is preferably made from butted sections in the general shape of L
open each comprising a first horizontal wing 155 arranged to be in contact with the top of said face

- 8 -upper 152 so as to allow the attachment of said frame outside 154 on the thermal box 15 by any means such as screws for example, and a second inclined wing 156 extending outwardly of said housing and arranged to support the canvas 7 when it is set up on the tension device 13. This frame outside 154 makes it possible to create a residual space 157 between the underside of the canvas 7 and the top of the face 152 upper of the thermal box 15. This space residual 157 allows, when the flexible fabric 7 is stretched, to avoid any contact between said fabric 7 and the face upper 152 of the thermal box 15, as is shown in Figure 3.
The thermal box 15 is able to be put in movement between a "canvas at rest" position and a position "canvas stretched" by at least one actuator 16. The tensioning device 13 advantageously comprises two actuators 16 each disposed between the bottom 19 and the below the thermal box 15 and more particularly to the neighborhood of the middle of the side edge of the face lower 158 of the thermal box 15.
Each actuator 16 is preferably a jack Linear electric integrated in a stable guide type telescopic column. These actuators 16 are connected to a control box (not shown) arranged for example on the structure 14 to adjust, synchronize or to stop the thrust of said actuators 16. The control box preferably has three settings of predetermined voltage according to the density of different soft cloths 7.
The inner frame 17 is a preference frame made from sectioned butted sections overall rectangular and is integral with said thermal box 15 thanks to elastic fasteners 21. These latter

- 9 -are such that they always exercise an effort to maintain contact between the internal framework 17 and the thermal box 15.
Preferably, these fastening members 21 are sets (screws 22-spring 23-nut 24) distributed along the periphery of said thermal box 15. The spring 23 is a helical compression spring disposed around the screw 22 between the underside of the inner frame 17 and the nut 24, said spring 23 being such that, when the thermal box 15 deviates from the internal frame 17 to no longer be in contact with the latter, it compresses itself and exerts an effort to bring the box thermal 15 of the internal frame 17.
As a result, the internal frame 17 is also mobile on at least part of the race of the caisson 15 defined between its position "canvas at rest" and its position "stretched canvas" Indeed, the internal frame 17 has at least two opposite sections of dimensions sufficient to abut under the upper frame 18 of the structure 14, advantageously on both sides of the thermal box 15, to stop the race of said frame internal 17 before said position "stretched canvas" while allowing the thermal box 15 to continue its course to this position "stretched canvas". The position in which the internal frame 17 abuts under the frame higher 18 of structure 14 is designated, in what follows, by "intermediate" position. This position "intermediate" makes it possible to immobilize the peripheral edge of the canvas 7 by keeping it tight between the frame 17 and the upper frame 18 of the structure 14.
It is understood that the fasteners 21 elastic guarantee a uniform distribution of the effort thrust of the actuator 16 on the entire canvas 7 so as to have a perfect tension of the latter.

- 10 -In addition, the internal framework 17 also includes removable holding profiles 25 willing advantageously along its longitudinal faces, held on the inner frame 17 by appropriate means such as bolts advantageously provided with springs by example, and to maintain the fabric 7 between said internal framework 17 and the senior executive 18 of the structure 14, and bearing on the free end of the second wing 156 of the profiles of the outer frame 154 of the thermal box 15.
Thus, the peripheral edge of the fabric 7 is kept tight between, on the one hand, the underside of the frame 18 of the structure 14 and, on the other hand, holding profiles 25 and inner frame 17. Preferably, a neoprene-type seal strip, for example, can be fixed on the upper face of the inner frame 17 so as to prevent the sliding of the supple cloth 7 when it is power on.
With reference to FIGS. 1 to 6 and with such configuration of the voltage device 13, to put under tension the canvas 7 of a rehabilitation device 1 so to cover a removable panel 2, we proceed according to the plurality of steps described below.
With reference to FIG. 1, the fabric 7 is deposited on the thermal box 15 and the internal frame 17, said canvas 7 being supported on the free end of the second wing 156 of the profiles of the outer frame 154 of the box thermal 15, the thermal box 15 and the frame internal 17 being in position "canvas at rest".
The heat generators are then turned on so to heat the canvas 7 so increase the elasticity of said fabric 7.
The thermal box 15, but also the frame 17, are then set in motion by at least one

- 11 -actuator 16 from position "canvas at rest" to the intermediate position, where the internal frame 17 is in abutment against the senior executive 18 of the structure 14, according to FIG. 2, the edge of the fabric 7 is then kept tight between, on the one hand, the senior structure 14 and, on the other hand, said profiles of maintenance 25 and internal framework 17.
The actuator 16 continues to put in motion only the thermal box 15 so as to put in tension the web 7, whose peripheral edge is maintained on the inner frame 17, by the displacement of the end free of the second wing 156 of the frame profiles outside 154 of the thermal box 15, in accordance with the figure 3.
The removable panel 2 is then possibly slightly rectified on its peripheral edge 5 in order to to be able to fix at least two trim profiles 6 opposite respectively along two opposite areas of the edge peripheral 5 of said removable panel 2.
Then, we apply the removable panel assembly 2-covering profiles 6 on the canvas 7, then depositing the adhesive, for example glue, on the periphery of the removable panel assembly 2-profile trim 6, and especially at the end of wing 9 of profiles 6 located on the side of the outer face 3 to be coated of the removable panel 2, in accordance with FIG.
Then, the canvas 7 is cut roughly around the removable panel assembly 2-profile trim 6.
Finally, the excess of canvas 7 protruding from the removable panel 2 to obtain a removable panel 2 covered with a fabric 7 according to the figure 6.
We understand that these steps may not be executed in the order shown. For example, the sign

- 12 -removable 2 may be slightly rectified before putting under tension of the fabric 7 with the tensioning device 13 according to the invention.
Similarly, we can deposit glue on 6 trim profiles before applying the panel assembly removable 2-profile trim 6 on the canvas 7.
As the canvas 7 was previously heated then stretched and finally glued on the removable panel 2, we understands that when the canvas 7 cools, it gets retracts slightly, which has the effect of increasing the tension of the fabric 7 guaranteeing an aesthetic appearance irreproachable.
Thus, we understand that the removable panel 2 covered with a canvas 7 regains its aesthetic appearance while keeping its initial properties such as resistance fire, acoustic insulation for example. In addition, the extent to which the fabric 7 is advantageously made to from a sheet of polymer material such as polyvinyl chloride, the removable panel 2 coated therefore possesses new qualities such as including: ease of maintenance, airtightness, dust or moisture, and becomes easily washable.
Moreover, it is clear that this invention is interesting because it makes it possible to rehabilitate removable panels 2 gradients without having to redo bores and cuts possibly made on said removable panels 2.
Finally, with this method in particular, each panel removable 2 can be coated with canvas 7 of different aspects and colors and we can then create atmospheres very interesting aesthetics by mixing together the aspects and colors.

- 13 -Possibility of industrial application As described above, the invention will find a application for any type of fake degraded walls of industrial, commercial, institutional buildings, etc.
but also of particular dwellings, that one wishes rehabilitate easily while keeping the panels existing removable.
Moreover, the invention is not limited to 2 parallelepiped removable panels lining, but can also be used to coat panels removable, already cut or modified, of different shapes or access hatches.
In addition, the voltage devices and method according to the invention may also be used for the manufacture of new false-wall panels constituted only a frame made of butted PVC profiles or aluminum, for example, on which is attached a soft cloth. These new panels are simple to make and particularly light because they do not include removable panels 2.Finally, it is clear that this invention is not limited to the sole form of execution of this installation; it embraces, on the contrary, all the variants of implementation and application respecting the same principle.

Claims (9)

- 14 - 1. Device tensioning device (13) of a flexible fabric (7) of a rehabilitation (1) of a removable panel (2), comprising at least one structure (14), a thermal box (15) disposed within said structure (14) and fit to heat said flexible fabric (7), an internal frame (17) integral with elastic said thermal box (15), and at least one actuator (16) integral with the structure (14) and able to set in motion the thermal box (15) of kind moving the thermal box (15) between a "canvas at rest" position and a "stretched canvas" position where:
(a) the actuator (16) is further adapted to set in motion the internal frame (17) between a "canvas at rest" position and an intermediate position located between said positions "canvas at rest" and "canvas stretched", the flexible fabric (7) being supported on a portion of the thermal box (15) and maintained by a peripheral edge between the inner frame (17) and the structure (14);
(b) the thermal box (15) has a shaped hollow box globally parallelepipedic containing at least one generator of heat and comprising at least one lower face (151) and one face (152) provided with a plurality of openings (153) opening for to pass uniformly the heat generated by the generator of heat; and (c) the thermal box (15) comprises an outer frame (154) disposed on the top of its upper face (152) and serving as support for the flexible fabric (7) so as to create a residual space (157) between the flexible fabric (7) and the said upper face (152), when the flexible fabric (7) is stretched. The tensioning device (13) according to claim 1, wherein the frame outside (154) is made from butted outer profiles in the general form of The each having a first horizontal wing (155) fixed to be in contact on the top of said upper face (152) and a second wing (156) serving as support for the flexible fabric (7). 3. Voltage device (13) according to any one of claims 1 or 2, where the inner frame (17) has abutting internal profiles of section generally rectangular and is integral with said thermal box (15) through at fastening members (21) elastic. 4. Voltage device (13) according to any one of claims 1 at 3, where the internal frame (17) has at least two opposite internal sections of sufficient size to abut on the structure (14), this position defining the intermediate position. 5. tensioning device (13) according to any one of claims 1 at 4, where the inner frame (17) has holding profiles (25). 6. tensioning device (13) according to any one of claims 1 to 5, the device comprising two actuators (16), each being of type jack linear electric integrated in a stable guide. 7. Method of coating a removable panel (2) of a false wall with a rehabilitation device (1), the method comprising at least the steps following taken successively or not:
- powering up a flexible fabric (7) with a tensioning device (13) according to any one of claims 1 to 6;

- Implementation vis-à-vis at least two trim profiles (6) respectively along two opposite zones of a peripheral edge (5) the removable panel (2);
- application of the removable panel assembly (2) - covering profiles (6) sure the flexible fabric (7) stretched;
- Adhesive application on one perimeter of the removable panel assembly (2) -covering profiles (6);
- Cutting a surplus of flexible fabric (7) protruding from the removable panel (2). 8. A coating method according to claim 7, wherein the step of placing under tension of the flexible fabric (7) with the tensioning device (13) includes following steps :
- placing the flexible fabric (7) on the thermal box (15) and the frame internal section (17), the thermal box (15) and the internal frame (17) being position "canvas at rest";
- commissioning of heat generators;
- setting the thermal box (15) in motion by the actuator (16) since the position "canvas at rest" to the "intermediate"position;
- setting the thermal box (15) in motion by the actuator (16) since the "intermediate" position to the "stretched canvas" position so that to put under tension the flexible fabric (7). 9. Process of coating according to any one of claims 7 or 8, where the adhesive application step is preceded by a step of rectification the peripheral edge (5) of the removable panel (2).