LUMINOUS PANEL

Abstract

A luminous panel includes a light-emitting board having a light-emitting face to form a surface of a wall device, and a receiving part to be fastened to a framing of the wall device. The light-emitting board is removably attachable to the receiving part. In the installed configuration, the emitting face forms a part of the surface of the wall device and the receiving part is at the rear of the surface of the wall device. The light-emitting board and the receiving part include complementary rotational members located near first ends of the light-emitting board and the receiving part, and complementary snap-fastening members located near second ends of the light-emitting board and the receiving part. In the assembled state, the receiving part is completely covered by the light-emitting board and the rotational members are housed in the volume between the light-emitting board and the receiving part.

Claims

1. A luminous panel to be installed in a wall device, comprising: a light-emitting board having a light-emitting face that is intended to form at least one part of a surface of the wall device, and a light-emitting board receiving part, which is intended to be fastened to a framing of the wall device, wherein the light-emitting board is configured to be attached removably to the light-emitting board receiving part so that, in an installed configuration, the light-emitting face forms a part of the surface of the wall device and the light-emitting board receiving part is at a rear of the surface of the wall device, the light-emitting board and the light-emitting board receiving part comprising complementary rotational members, which are located in a vicinity of a first end of the light-emitting board and of a first end of the light-emitting board receiving part, and complementary snap-fastening members, which are located in a vicinity of a second end of the light-emitting board and of a second end of the light-emitting board receiving part, wherein, in an assembled state of the light-emitting board and of the light-emitting board receiving part, the light-emitting board receiving part is completely covered by the light-emitting board and the rotational members are housed in a volume defined between the light-emitting board and the light-emitting board receiving part.

2. The luminous panel according to claim 1, wherein the luminous panel, in the assembled state of the light-emitting board and of the light-emitting board receiving part, has a thickness less than or equal to a thickness of the wall device, taken transversely to the surface of the wall device.

3. The luminous panel according to claim 1, wherein the rotational members comprise an axle, borne by one from among the light-emitting board and the light-emitting board receiving part and a guiding element, borne by the other from among the light-emitting board and the light-emitting board receiving part.

4. The luminous panel according to claim 1, wherein, when the rotational members are engaged with one another, the snap-fastening members are capable of being activated or deactivated by an application of a thrust force of the second end of the light-emitting board in a direction of the second end of the light-emitting board receiving part.

5. The luminous panel according to claim 1, wherein the rotational members, when the rotational members are engaged with one another, enable a pivoting of the light-emitting board with respect to the light-emitting board receiving part between a closed position, in which the second end of the light-emitting board is opposite the second end of the light-emitting board receiving part and the snap-fastening members are activated, and an open position, in which the light-emitting board is inclined at an angle (α) with respect to the light-emitting board receiving part with the second end of the light-emitting board at a distance from the second end of the light-emitting board receiving part and the snap-fastening members are deactivated.

6. The luminous panel according to claim 5, comprising means for holding the light-emitting board with respect to the receiving part in the open position.

7. The luminous panel according to claim 1, wherein, in the installed configuration, the emitting face of the light-emitting board is flush with the rest of the surface of the wall device.

8. The luminous panel according to claim 1, wherein the light-emitting board and the light-emitting board receiving part comprise complementary magnetic elements along side edges connecting the first ends and second ends of each of the light-emitting board and the light-emitting board receiving part.

9. The luminous panel according to claim 1, comprising a device for powering the light-emitting board, which is housed in the volume defined between the light-emitting board and the light-emitting board receiving part.

10. The luminous panel according to claim 1, wherein the light-emitting board receiving part comprises a base opposite the light-emitting board.

11. The luminous panel according to claim 1, wherein the light-emitting board comprises a support, at least one face of which is provided with a covering adapted to emit light.

12. The luminous panel according to claim 11, wherein the support is a wall facing or a ceiling tile.

13. The luminous panel according to claim 11, wherein the covering adapted to emit light is a light-emitting fabric comprising optical fibres, covering a front face of the support, the wherein ends of the fibres are folded around ends of the support and connected to light sources on a rear face of the support.

14. A wall device comprising a luminous panel according to claim 1.

15. The wall device according to claim 14, wherein the wall device is a partition or a ceiling.

Description

[0028] The features and advantages of the invention will appear in the following description of an embodiment of a luminous panel according to the invention, given solely by way of example and with reference to the appended drawings, in which:

[0029] FIG. 1 is a front view in partial perspective of a building wall partition comprising a luminous panel in accordance with the invention;

[0030] FIG. 2 is a schematic cross section along the line II-II from FIG. 1;

[0031] FIG. 3 is a rear view of the light-emitting board of the luminous panel from FIG. 1;

[0032] FIG. 4 is a front view of the receiving part of the luminous panel from FIG. 1;

[0033] FIG. 5 is a view similar to FIG. 1, showing a first step of assembling the light-emitting board with respect to the receiving part of the luminous panel which has been previously attached to the framing of the partition;

[0034] FIG. 6 is a view similar to FIG. 1, showing a second step of assembling the light-emitting board with respect to the receiving part of the luminous panel; and

[0035] FIG. 7 is a view similar to FIG. 1, showing a third step of assembling the light-emitting board with respect to the receiving part of the luminous panel.

[0036] FIGS. 1 and 2 show a wall partition 50, of dismantlable partition type, comprising a luminous panel 10 according to the invention. Conventionally, the partition 50 comprises a framing 56, which is formed by a bottom runner 51 and a top runner 52 connected to a bearing structure 100 supporting the partition, and by vertical studs, not represented, which extend between the top and bottom runners. The partition 50 also comprises a plurality of facing boards 57, which are for example plaster boards such as those known under the name BA13. The facing boards 57 are positioned in the framing 56 of the partition so as to form two walls 60 and 62 that extend substantially parallel to one another and which act as walls for, respectively, a space E1 and a space E2 that are delimited by the partition, as can be seen in FIG. 2.

[0037] In this embodiment, the wall 60 of the partition 50 comprises a facing board 57 which is pierced in its upper part by an opening 70 suitable for receiving the luminous panel 10 according to the invention. In accordance with the invention, the luminous panel 10 comprises two main parts capable of being assembled in a removable manner, namely a light-emitting board 2 and a receiving part 4. The light-emitting board 2 is powered by any means known to a person skilled in the art, and can be controlled by means of one or more switches so as to regulate the luminosity in the space E1. Thus, owing to the light panel 10, the partition 50 plays, for the space E1, a double role as a wall and as a luminaire.

[0038] As is clearly visible in FIG. 3, the light-emitting board 2 comprises a support 27, which is for example a facing board of the same type as the boards 57, that is to say a plaster board of BA13 type. The facing board 27 is covered on a front face 27A with a light-emitting fabric 29, formed by weaving optical fibres. The light-emitting fabric 29 thus forms a light-emitting face 2A of the light-emitting board 2. The optical fibres may be weft yarns and/or warp yarns of the light-emitting fabric 29. The optical fibres go beyond the surface of the light-emitting fabric 29 in order to be connected to light sources, which are for example light-emitting diodes (LEDs).

[0039] More specifically, in this embodiment, the optical fibres are folded around the bottom and top ends of the facing board 27 and connected to the light sources that are found against the rear face 27B of the board 27. The light sources are positioned, in the vicinity of the bottom end 21 and of the top end 22 of the light-emitting board 2, in two casings 30 firmly attached, in particular by bonding, to the rear face 27B of the board 27. The optical fibres of the light-emitting fabric 29 are thus supplied with light both from the top and from the bottom. This makes it possible to have a substantially uniform distribution of the light over the entire surface of the light-emitting fabric 29, by eliminating the attenuations that could appear at the ends of the optical fibres far away from the light sources.

[0040] Each casing 30 is electrically connected to an electrical power device 6, which is also firmly attached, in particular by bonding, to the rear face 27B of the board 27, in a central zone thereof. The electric power device 6 comprises in particular a transformer, powered by a cable that may advantageously circulate in the bottom runner 51 of the partition 50.

[0041] The light-emitting board 2 is provided in order to be attached removably to the receiving part 4 so that, in the installed configuration, the emitting face 2A of the light-emitting board 2 forms a part of the surface 60A of the wall 60, whereas the receiving part 4 is at the rear of the surface 60A. As shown in FIG. 2, in the assembled state of the light-emitting board 2 and of the receiving part 4, the luminous panel 10 has a thickness e.sub.10 less than or equal to the thickness e.sub.50 of the partition 50, taken transversely to the surface 60A. Advantageously, in the assembled state of the light-emitting board 2 and of the receiving part 4, the receiving part 4 is completely covered by the light-emitting board 2. Thus, when the luminous panel 10 is installed in the partition 50, only the emitting face 2A of the light-emitting board is visible at the surface of the wall 60, which guarantees a good visual appearance.

[0042] As shown in FIG. 4, the receiving part 4 is formed by a metal component comprising a base 49 and two side wings 47. The receiving part 4 is provided in order to be rigidly fixed to the framing 56 of the partition 50, in particular by screwing onto the studs of the framing in the vicinity of the wings 47. In the assembled state of the light-emitting board 2 and of the receiving part 4, a front face 49A of the base 49 is opposite the rear face 27B of the facing board 27. A volume V is thus defined between the light-emitting board 2 and the receiving part 4, in which the casings 30 of the light sources and the electric power device 6 are housed.

[0043] For the reversible assembly thereof, the light-emitting board 2 and the receiving part 4 comprise complementary rotational members and complementary snap-fastening members.

[0044] In this embodiment, the rotational members are, respectively, a section 23 borne by the light-emitting board 2 in the vicinity of its bottom end 21, and a section 43 borne by the receiving part 4 in the vicinity of its bottom end 41. In the assembled state of the light-emitting board 2 and of the receiving part 4, the receiving part is completely covered by the light-emitting board and the rotational sections 23 and 43 are housed in the volume V defined between the light-emitting board 2 and the receiving part 4. The sections 23 and 43 are provided in order to slidingly bear against one another, the section 43 forming a guiding element whereas the section 23 forms a pivot axle. Preferably, the sections 23 and 43 extend over the entire width of the light-emitting board 2 and of the receiving part 4, transversely to the side edges 25 and 45 thereof. The section 43 of the receiving part 4 is configured to ensure a rigid holding of the light-emitting board 2 and to support its weight.

[0045] The snap-fastening members are themselves formed by two mechanical latches of “push-release” type located at the two top corners of the luminous panel 10. For each latch, a first part 24 of the latch is borne by the light-emitting board 2, in the vicinity of a corner of the top end 22 of the light-emitting board, whereas a second part 44 of the latch complementary to the first part is borne by the receiving part 4, in the vicinity of a corner of the top end 42 of the receiving part. The positioning of the latches is adjusted so that, when the sections 23 and 43 bear against one another as can be seen in the detail from FIG. 5, the first parts 24 and the second parts 44 of the latches are capable of being engaged with one another by the application of a thrust force F.sub.1 of the top end 22 of the light-emitting board 2 in the direction of the top end 42 of the receiving part 4, as shown by the arrow F.sub.1 from FIG. 7.

[0046] The sections 23 and 43, when they bear against one another as can be seen in the detail from FIG. 5, are suitable for enabling a pivoting of the light-emitting board 2 with respect to the receiving part 4 between a closed position, seen in FIGS. 1, 2 and 7, in which the top end 22 of the light-emitting board is opposite the top end 42 of the receiving part and the first parts 24 and second parts 44 of the latches are engaged with one another, and an open position, seen in FIGS. 5 and 6, in which the light-emitting board 2 is inclined with respect to the receiving part 4, with the top end 22 of the light-emitting board at a distance from the top end 42 of the receiving part and the first parts 24 and second parts 44 of the latches are separated.

[0047] In order to prevent any dropping of the light-emitting board 2 when the latches are deactivated, a chain 26 for holding the light-emitting board 2 in its open position is advantageously provided, which cooperates with a complementary ring 46 arranged on the base 49 of the receiving part. The security chain 26 may in particular allow an angle α of inclination of the light-emitting board 2 with respect to the receiving part 4 of the order of 10° to 30°, preferably of the order of 15°, which facilitates the operations for fitting and removing the light-emitting board 2.

[0048] Advantageously, in this embodiment, the light-emitting board 2 and the receiving part 4 also comprise magnetic strips 28 and 48, positioned along their side edges 25 and 45, which helps to hold the light-emitting board 2 on the receiving part 4.

[0049] As illustrated in FIGS. 5 to 7, the assembly of the luminous panel 10 in the partition 50 comprises a first step in which the receiving part 4 is rigidly fastened to the framing 56 of the partition, in particular by screwing. The light-emitting board 2 is then added to the receiving part 4, by engaging the sections 23 and 43 as shown in FIG. 5, and the security chain 26 is firmly attached to the ring 46 so as to fasten the light-emitting board 2 to the receiving part 4 in the open position. From this open position, seen in FIG. 6, in which the light-emitting board 2 is inclined at an angle α of the order of 10° to 30°, preferably of the order of 15°, with respect to the receiving part 4, a thrust force F.sub.1 of the top end 22 of the light-emitting board 2 is applied in the direction of the top end 42 of the receiving part 4, as shown in FIG. 7. This enables the activation both of the latches, the parts 24 and 44 of which engage with one one another, and of the magnetic strips 28 and 48.

[0050] In order to ensure an optimal esthetic appearance of the wall 60, the partition 50 advantageously comprises finishing joints 58 at each join between the light-emitting board 2 and an adjacent facing board 57. Advantageously, these finishing joints may be produced using sections of Placolistel® type sold by Placoplatre, which are inserted in each join between the light-emitting board 2 and an adjacent facing board 57, fastened by screwing into the facing board 57, then covered with a finishing coat.

[0051] Preferably, the light-emitting board 2 is removed during the finishing works, which are jointing or else painting, which makes it possible to prevent any deterioration of the light-emitting board. The light-emitting board 2 may also be easily disassembled, by applying, on the top end 22 of the light-emitting board, a new thrust force in the direction of the arrow F.sub.1 from FIG. 7, so as to separate the parts 24 and 44 of the latches, then by detaching the chain 26 relative to the ring 46 and by disengaging the section 23 relative to the section 43. Once the finishing works are complete, the light-emitting board 2 may easily be put back into place in the receiving part 4, by engagement of the sections 23 and 43 and activation of the magnetic strips 28 and 48 and of the parts 24 and 44 of the latches, making sure to reattach the chain 26 to the ring 46.

[0052] As it emerges from the preceding embodiment, the assembly and disassembly of the light-emitting board 2 with respect to the receiving part 4 are carried out particularly easily, without requiring tooling. A user may thus easily access the rear of the light-emitting board 2, for example to carry out the maintenance of the electrical device 6. Furthermore, the luminous panel 10 according to the invention makes it possible to obtain a luminous surface of large size in a partition wall, with a good visual appearance, insofar as the fastening means between the light-emitting board 2 and the receiving part 4 are housed in the volume V at the rear of the surface of the wall and thus not visible. A good visual appearance is also ensured at the join between the light-emitting board and each adjacent facing board, where finishing joints are advantageously made. Very advantageously, the luminous panel 10 in accordance with the invention can be easily integrated into a conventional framing system of a wall device, such as a wall partition or a covering wall, which makes it possible to easily form a wall that provides a double function as a wall and as a luminaire.

[0053] The invention is not limited to the embodiment described and represented.

[0054] In particular, the invention has been illustrated in the case of a luminous panel which is added to an opening pierced in a facing board of a partition. The luminous panel may however occupy the entire height of the partition, by taking the place of a facing.

[0055] Furthermore, the invention has been illustrated in the case of a partition framing of dismantlable type. However, the invention also applies to other types of framings, in particular a framing of a covering wall of a building wall or a framing of a ceiling. In particular, when a luminous panel according to the invention is used in the case of a ceiling, the receiving part generally is fastened to a framing produced underneath a floor.

[0056] The support of the light-emitting board of a luminous panel in accordance with the invention may also be different from a facing plasterboard. Any support capable of being integrated into the production of a building wall can be used within the context of the invention, which includes, by way of non-limiting examples, tiles made of mineral wool, melamine-faced panels, laminated panels, boards made of natural wood, metal sheets.

[0057] The light-emitting covering of the light-emitting board of a luminous panel in accordance with the invention may also be different from a light-emitting fabric resulting from the weaving of optical fibres. It may be, as a variant, any flexible or rigid surface light guide, for example a scattering plate edge-lit with the aid of light-emitting diodes (LEDs), or else any type of surface light source, for example an OLED device.

[0058] Finally, it is clearly understood that the complementary rotational and snap-fastening members described previously may be replaced by any other suitable members, as long as they provide a removable fastening of the light-emitting board to the receiving part.