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EP2157361B1 - Light box with invisible edges - Google Patents

Light box with invisible edges Download PDF

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Publication number
EP2157361B1
EP2157361B1 EP09290635A EP09290635A EP2157361B1 EP 2157361 B1 EP2157361 B1 EP 2157361B1 EP 09290635 A EP09290635 A EP 09290635A EP 09290635 A EP09290635 A EP 09290635A EP 2157361 B1 EP2157361 B1 EP 2157361B1
Authority
EP
European Patent Office
Prior art keywords
translucent
transparent
box
light box
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09290635A
Other languages
German (de)
French (fr)
Other versions
EP2157361A1 (en
Inventor
Jean Hartmann
Guillaume Weit Haller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Normalu SAS
Original Assignee
Normalu SAS
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Filing date
Publication date
Application filed by Normalu SAS filed Critical Normalu SAS
Publication of EP2157361A1 publication Critical patent/EP2157361A1/en
Application granted granted Critical
Publication of EP2157361B1 publication Critical patent/EP2157361B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/04Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14Covers for frames; Frameless shades

Definitions

  • the present invention relates to a light box of the type comprising at least one translucent lateral wall and a lower wall constituted by a translucent sheet, this box being in particular intended to be placed next to boxes of the same type, so as to constitute a matrix of 'lighting.
  • the walls of the light box are completely transparent, it is no longer possible to place on the underside of the box stiffening elements, such as for example a metal frame to maintain the rigidity of the box . Indeed, this metal frame will be visible through the side walls and / or the bottom wall of the box, which greatly affects the aesthetic appearance thereof.
  • stiffening elements such as for example a metal frame
  • An object of the present invention is to provide a light box comprising at least one translucent side wall and a lower wall without the means of rigidification of said box are visible through these walls.
  • the present invention provides a light box having a translucent side wall and a bottom wall formed by the same translucent sheet.
  • the present invention also provides a light box having a translucent side wall and a bottom wall of different colors.
  • the present invention provides a light box having a translucent side wall and a bottom wall whose intersections can be highlighted by colored light trails.
  • the present invention thus relates to a light box intended, in particular in association with other boxes of the same type, to form a light wall such as for example a ceiling. Because of its properties, the light box according to the invention can be placed overflowing (ie all or part of its side walls can be visible).
  • the subject of the present invention is thus a light box having at least one translucent lateral wall and a lower wall constituted by a translucent sheet, said translucent sheet being tensioned by a transparent or translucent panel whose lower edge bears in contact with the light.
  • the light box inside the light box at the intersection of said bottom wall and said side wall, the light box comprising a light source, remarkable in that the median plane of the edge of the translucent or transparent panel is substantially coincident with the plane passing through the center of the light source and the intersection between the bottom wall and the side wall.
  • the translucent web is attached to a spar at the upper side edge of the sidewall.
  • this spar is a smooth, well known to the skilled person in the field of stretch ceilings which is commonly used to maintain the canvas of a stretch ceiling.
  • the transparent or translucent panel according to the invention may be made of polymer or glass.
  • polymer or glass examples include polymethyl methacrylate well known to those skilled in the art under the trade names Plexiglas®, Altuglas® but also under the names of plastic Acrylic, Perspex, Limacryl, Vitroflex, Metacrilat or Lucite.
  • the translucent or transparent panel according to the invention may be colored in order to give the side wall a color different from that of the lower wall.
  • the translucent or transparent panel used in the box according to the invention is attached to the spar on which is fixed the translucent sheet.
  • the light box will comprise two translucent side walls.
  • the present invention also relates to a remarkable light box in that it comprises a second translucent side wall, on the opposite side to the first, consisting of the same translucent sheet attached to the longitudinal members at the upper lateral edges of the side walls and tensioning by two transparent or translucent panels whose lower edges are supported, inside the box, at the intersections of the lower wall and the side walls.
  • a light box 1 which is arranged under a ceiling on which is fixed a light source 8 consisting for example of a discharge tube.
  • the figure 1 more particularly represents a light box 1 comprising two parallel and translucent side walls 2 and a translucent bottom wall 3 consisting of a translucent sheet 4 fixed to two longitudinal members 6 located at the upper edges of the two side walls 2 and tensioned by two transparent or translucent panels 5 whose lower edges come into abutment, inside the box 1, at the intersection of said bottom wall 3 with each of said side walls 2.
  • the transparent or translucent panels 5 are held in place by fastening means 7 which can be connected to the ceiling or attached to the longitudinal members 6, or fixed on an element outside the box 1.
  • the transparent or translucent panel 5 is placed in such a way that it can guide the light coming from the light source 8 towards the intersection of the bottom wall 3 with one of the side walls 2.
  • the edges of the bottom wall 3 in contact with the side walls 2 are highlighted by light rays. These light stripes may be of a different color from that of the translucent sheet 4 when the transparent or translucent panel 5 is colored.
  • the present invention also relates to a light box 1 remarkable in that the median plane of the slice translucent or transparent panel 5 (symbolizes in section by the axis xx 'on the figure 1 is substantially coincident with the plane passing through the center of the light source 8 and the intersection between the bottom wall 3 and the side wall 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Panels For Use In Building Construction (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Road Signs Or Road Markings (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Planar Illumination Modules (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The box (1) has a translucent lower wall (3) including a translucent layer (4) fixed in a longeron (6) at a level of an upper edge of a lateral wall (2). The layer is placed in tension by a translucent or transparent panel (5). The panel has a lower face that is in support at an interior of the box. A median plane of an edge of the panel is merged with a plane passing through centre of a light source (8), and intersects the lower wall and the lateral wall. An upper lateral edge of the translucent or transparent panel is fixed to the longeron. The panel is made of Plexiglas(RTM: thermoplastic polymer of methyl methacrylate), Lucite(RTM: transparent thermoplastic acrylic resin), Perspex(RTM: acrylic), Limacryl(RTM: transparent thermoplastic acrylic resin) or Vitroflex(RTM: methyl polymethacrylate).

Description

La présente invention concerne un caisson lumineux du type comprenant au moins une paroi latérale et une paroi inférieure translucides constituées d'une nappe translucide, ce caisson étant notamment destiné à être disposé à côté de caissons du même type, de façon à constituer une matrice d'éclairage.The present invention relates to a light box of the type comprising at least one translucent lateral wall and a lower wall constituted by a translucent sheet, this box being in particular intended to be placed next to boxes of the same type, so as to constitute a matrix of 'lighting.

On sait que les caissons lumineux de ce type, lorsqu'ils sont de faibles dimensions, possèdent une rigidité suffisante permettant à leur utilisateur de les manipuler sans risque de leur causer des dommages irréversibles. Tel n'est malheureusement pas le cas lorsque les dimensions de ces caissons dépassent certaines limites, et l'on est alors contraint de les renforcer avec des éléments raidisseurs. Ces derniers sont habituellement constitués de barres transversales, assurant la jonction notamment de deux côtés opposés du caisson, qui s'étendent sensiblement dans le plan de la face supérieure de ceux-ci, entre la nappe translucide et les moyens d'éclairage, si bien que ces derniers projettent l'ombre portée des éléments raidisseurs sur la nappe translucide, ombre portée visible des utilisateurs du local. Un caisson comportant les caractéristiques du préambule de la revendication 1 est connu du document EP 1768084 .It is known that the light boxes of this type, when they are small, have sufficient rigidity allowing the user to handle them without risk of causing irreversible damage. This is unfortunately not the case when the dimensions of these boxes exceed certain limits, and one is then forced to reinforce them with stiffening elements. The latter usually consist of transverse bars, providing the junction including two opposite sides of the box, which extend substantially in the plane of the upper face thereof, between the translucent sheet and the lighting means, although that these project the shadow of the stiffening elements on the translucent sheet, visible shadow of users of the local. A box comprising the features of the preamble of claim 1 is known from the document EP 1768084 .

De plus, lorsqu'il est souhaitable que les parois du caisson lumineux soient entièrement transparentes, il n'est plus possible de placer sur la face inférieure du caisson des éléments raidisseurs, tel que par exemple un cadre métallique afin de maintenir la rigidité du caisson. En effet ce cadre métallique sera visible au travers des parois latérales et/ou de la paroi inférieure du caisson, ce qui nuit fortement à l'aspect esthétique de celui-ci.In addition, when it is desirable that the walls of the light box are completely transparent, it is no longer possible to place on the underside of the box stiffening elements, such as for example a metal frame to maintain the rigidity of the box . Indeed, this metal frame will be visible through the side walls and / or the bottom wall of the box, which greatly affects the aesthetic appearance thereof.

Un but de la présente invention est de proposer un caisson lumineux comprenant au moins une paroi latérale et une paroi inférieure translucides sans que les moyens de rigidification dudit caisson ne soient visibles au travers de ces parois.An object of the present invention is to provide a light box comprising at least one translucent side wall and a lower wall without the means of rigidification of said box are visible through these walls.

La présente invention propose un caisson lumineux possédant une paroi latérale et une paroi inférieure translucides constituées par la même nappe translucide.The present invention provides a light box having a translucent side wall and a bottom wall formed by the same translucent sheet.

La présente invention propose également un caisson lumineux possédant une paroi latérale et une paroi inférieure translucides de couleurs différentes.The present invention also provides a light box having a translucent side wall and a bottom wall of different colors.

La présente invention propose un caisson lumineux possédant une paroi latérale et une paroi inférieure translucides dont les intersections peuvent être mis en valeur par des trais de lumière colorés.The present invention provides a light box having a translucent side wall and a bottom wall whose intersections can be highlighted by colored light trails.

La présente invention a ainsi pour objet un caisson lumineux destiné, notamment en association avec d'autres caissons du même type, à constituer une paroi lumineuse telle que par exemple un plafond. De par ses propriétés, le caisson lumineux selon l'invention pourra être posé en débord (c.à.d. que tout ou partie de ses parois latérales pourra être visible).The present invention thus relates to a light box intended, in particular in association with other boxes of the same type, to form a light wall such as for example a ceiling. Because of its properties, the light box according to the invention can be placed overflowing (ie all or part of its side walls can be visible).

La présente invention a ainsi pour objet un caisson lumineux possédant au moins une paroi latérale et une paroi inférieure translucides constituées d'une nappe translucide ladite nappe translucide étant mise en tension par un panneau transparent ou translucide dont le chant inférieur est en appui, à l'intérieur du caisson lumineux au niveau de l'intersection de ladite paroi inférieure et de ladite paroi latérale, le caisson lumineux comportant une source lumineuse, remarquable en ce que le plan médian de la tranche du panneau translucide ou transparent est sensiblement confondu avec le plan passant par le centre de la source lumineuse et l'intersection entre la paroi inférieure et la paroi latérale.The subject of the present invention is thus a light box having at least one translucent lateral wall and a lower wall constituted by a translucent sheet, said translucent sheet being tensioned by a transparent or translucent panel whose lower edge bears in contact with the light. inside the light box at the intersection of said bottom wall and said side wall, the light box comprising a light source, remarkable in that the median plane of the edge of the translucent or transparent panel is substantially coincident with the plane passing through the center of the light source and the intersection between the bottom wall and the side wall.

La nappe translucide est fixée à un longeron au niveau du bord latéral supérieur de la paroi latérale. Selon un mode de réalisation particulier, ce longeron est une lisse, bien connue de l'Homme du Métier dans le domaine des plafonds tendus qui est utilisée couramment pour maintenir la toile d'un plafond tendu.The translucent web is attached to a spar at the upper side edge of the sidewall. According to a particular embodiment, this spar is a smooth, well known to the skilled person in the field of stretch ceilings which is commonly used to maintain the canvas of a stretch ceiling.

Le panneau transparent ou translucide selon l'invention peut être en polymère ou en verre. Parmi les polymères préférés pour la réalisation des panneaux translucides ou transparents selon l'invention, on citera plus particulièrement le polyméthacrylate de méthyle bien connu de l'Homme du Métier sous les dénominations commerciales de Plexiglas®, Altuglas® mais aussi sous les noms de plastique acrylique, Perspex, Limacryl, Vitroflex, Metacrilat ou Lucite.The transparent or translucent panel according to the invention may be made of polymer or glass. Among the preferred polymers for producing translucent or transparent panels according to the invention, mention will be made more particularly of polymethyl methacrylate well known to those skilled in the art under the trade names Plexiglas®, Altuglas® but also under the names of plastic Acrylic, Perspex, Limacryl, Vitroflex, Metacrilat or Lucite.

Selon un mode de réalisation particulier, le panneau translucide ou transparent selon l'invention pourra être coloré afin de donner à la paroi latérale une couleur différente de celle de la paroi inférieure.According to a particular embodiment, the translucent or transparent panel according to the invention may be colored in order to give the side wall a color different from that of the lower wall.

Selon un autre mode de réalisation de l'invention, le panneau translucide ou transparent utilisé dans le caisson selon l'invention est fixé au longeron sur lequel est fixé la nappe translucide.According to another embodiment of the invention, the translucent or transparent panel used in the box according to the invention is attached to the spar on which is fixed the translucent sheet.

Selon une réalisation préférée de l'invention, le caisson lumineux comprendra deux parois latérales translucides. Ainsi la présente invention concerne également un caisson lumineux remarquable en ce qu'il comprend une deuxième paroi latérale translucide, sur la face opposée à la première, constituée de la même nappe translucide fixée à des longerons au niveau des bords latéraux supérieurs des parois latérales et mise en tension par deux panneaux transparents ou translucides dont les chants inférieurs sont en appui, à l'intérieur du caisson, au niveau des intersections de la paroi inférieure et des parois latérales.According to a preferred embodiment of the invention, the light box will comprise two translucent side walls. Thus the present invention also relates to a remarkable light box in that it comprises a second translucent side wall, on the opposite side to the first, consisting of the same translucent sheet attached to the longitudinal members at the upper lateral edges of the side walls and tensioning by two transparent or translucent panels whose lower edges are supported, inside the box, at the intersections of the lower wall and the side walls.

On décrira ci-après à titre d'exemple non limitatif, deux formes d'exécution de la présente invention, en référence à la figure unique qui est une vue en coupe verticale d'un caisson lumineux suivant l'invention.Hereinafter will be described by way of nonlimiting example, two embodiments of the present invention, with reference to the single figure which is a vertical sectional view of a light box according to the invention.

On a représenté sur la figure 1 un caisson lumineux 1 suivant l'invention qui est disposé sous un plafond sur lequel est fixée une source lumineuse 8 constituée par exemple d'un tube à décharge.We have shown on the figure 1 a light box 1 according to the invention which is arranged under a ceiling on which is fixed a light source 8 consisting for example of a discharge tube.

La figure 1 représente plus particulièrement un caisson lumineux 1 comprenant deux parois latérales 2 parallèles et translucides, et une paroi inférieure translucide 3 constituées d'une nappe translucide 4 fixée à deux longerons 6 situés au niveau des bords supérieurs des deux parois latérales 2 et mise en tension par deux panneaux transparents ou translucides 5 dont les chants inférieurs viennent en appui, à l'intérieur du caisson 1, au niveau de l'intersection de ladite paroi inférieure 3 avec chacune desdites parois latérales 2.The figure 1 more particularly represents a light box 1 comprising two parallel and translucent side walls 2 and a translucent bottom wall 3 consisting of a translucent sheet 4 fixed to two longitudinal members 6 located at the upper edges of the two side walls 2 and tensioned by two transparent or translucent panels 5 whose lower edges come into abutment, inside the box 1, at the intersection of said bottom wall 3 with each of said side walls 2.

Les panneaux transparents ou translucides 5 sont maintenus en place par des moyens de fixation 7 qui peuvent être reliés au plafond ou rattachés aux longerons 6, ou encore fixé sur un élément extérieur au caisson 1.The transparent or translucent panels 5 are held in place by fastening means 7 which can be connected to the ceiling or attached to the longitudinal members 6, or fixed on an element outside the box 1.

Selon un mode réalisation particulièrement préféré, le panneau transparent ou translucide 5 est placé de telle façon qu'il puisse guider la lumière provenant de la source lumineuse 8 vers l'intersection de la paroi inférieure 3 avec l'une des parois latérales 2. Dans ce mode de réalisation, les bords de la paroi inférieure 3 en contact avec les parois latérales 2 sont mis en valeur par des raies de lumière. Ces raies de lumière peuvent être d'une couleur différente de celle de la nappe translucide 4 lorsque le panneau transparent ou translucide 5 est coloré. Ainsi, la présente invention concerne également un caisson lumineux 1 remarquable en ce que le plan médian de la tranche du panneau translucide ou transparent 5 (symbolise en coupe par l'axe xx' sur la figure 1 est sensiblement confondu avec le plan passant par le centre de la source lumineuse 8 et l'intersection entre la paroi inférieure 3 et la paroi latérale 2.According to a particularly preferred embodiment, the transparent or translucent panel 5 is placed in such a way that it can guide the light coming from the light source 8 towards the intersection of the bottom wall 3 with one of the side walls 2. this embodiment, the edges of the bottom wall 3 in contact with the side walls 2 are highlighted by light rays. These light stripes may be of a different color from that of the translucent sheet 4 when the transparent or translucent panel 5 is colored. Thus, the present invention also relates to a light box 1 remarkable in that the median plane of the slice translucent or transparent panel 5 (symbolizes in section by the axis xx 'on the figure 1 is substantially coincident with the plane passing through the center of the light source 8 and the intersection between the bottom wall 3 and the side wall 2.

Claims (7)

  1. Light box (1) including at least one translucent lateral wall (2) and a translucent lower wall (3) constituted by a translucent ply (4) fixed in a longeron (6) on the upper edge of said lateral wall (2), said translucent ply (4) being placed in tension by a transparent or translucent panel (5) of which the lower face is bearing against, at the interior of the light box (1), on the intersection of said lower wall (3) with said lateral wall (2), said light box (1) comprising a light source (8) and characterised in that the median plane of the edge (xx') of said transparent or translucent panel (5) is substantially confounded with the plane passing through the centre of said light source (8) and the intersection between said lower wall (3) and said lateral wall (2).
  2. Light box (1) according to claim 1 characterised in that it comprises a second translucent lateral wall (2), on the face opposite the first, constituted of said translucent ply (4) fixed in a second longeron (6) on the upper lateral edge of said second lateral wall (2) and placed in tension by a second transparent or translucent panel (5) of which the lower face is bearing against, at the interior of the box (1), on the intersection of said lower wall (3) and of said second lateral wall (2).
  3. Light box (1) according to any of claims 1 to 2 characterised in that said transparent or translucent panels (5) are maintained in place by at least one means of fastening (7).
  4. Light box (1) according to claim 3 characterised in that said means of fastening (7) is fixed on said longeron (6).
  5. Light box (1) according to claim 3 characterised in that said means of fastening (7) is fixed on an element exterior to the box (1).
  6. Light box (1) according to any of claims 1 to 4 characterised in that the upper lateral edge of said transparent or translucent panel (5) is fixed in said longeron (6).
  7. Light box (1) according to any of claims 1 to 6 characterised in that said longeron (6) comprises a longitudinal groove (9) that can receive the upper lateral edge of said transparent or translucent panel (5).
EP09290635A 2008-08-22 2009-08-21 Light box with invisible edges Active EP2157361B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804674A FR2935169B1 (en) 2008-08-22 2008-08-22 LIGHT CABIN WITH INVISIBLE EDGES

Publications (2)

Publication Number Publication Date
EP2157361A1 EP2157361A1 (en) 2010-02-24
EP2157361B1 true EP2157361B1 (en) 2011-06-29

Family

ID=40445204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290635A Active EP2157361B1 (en) 2008-08-22 2009-08-21 Light box with invisible edges

Country Status (3)

Country Link
EP (1) EP2157361B1 (en)
AT (1) ATE514895T1 (en)
FR (1) FR2935169B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6073376A (en) * 1998-08-24 2000-06-13 Verret; Normand Edging for sign casing
FR2891387B1 (en) * 2005-09-23 2007-11-30 Bubendorff Sa DEVICE FOR PRESENTATION OF INFORMATION

Also Published As

Publication number Publication date
FR2935169A1 (en) 2010-02-26
EP2157361A1 (en) 2010-02-24
ATE514895T1 (en) 2011-07-15
FR2935169B1 (en) 2010-10-15

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