EP0651201B1 - Luminaire comprising a housing and a closing louvre - Google Patents

Luminaire comprising a housing and a closing louvre Download PDF

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Publication number
EP0651201B1
EP0651201B1 EP94203104A EP94203104A EP0651201B1 EP 0651201 B1 EP0651201 B1 EP 0651201B1 EP 94203104 A EP94203104 A EP 94203104A EP 94203104 A EP94203104 A EP 94203104A EP 0651201 B1 EP0651201 B1 EP 0651201B1
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EP
European Patent Office
Prior art keywords
luminaire
housing
louvre
envelope
profile portion
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.)
Expired - Lifetime
Application number
EP94203104A
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German (de)
French (fr)
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EP0651201A1 (en
Inventor
Alain Société Civile S.P.I.D. Hamadache
Peter Société Civile S.P.I.D. Holten
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.)
Koninklijke Philips NV
Original Assignee
Compagnie Philips Eclairage
Koninklijke Philips Electronics NV
Philips Electronics NV
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Publication of EP0651201A1 publication Critical patent/EP0651201A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/007—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for shipment or storage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the present invention relates to a luminaire comprising an envelope which contains at least one member necessary for the electrical supply of at least one lighting lamp and which is provided with an opening for the exit of light, and a closing grid. which, in the position of use in front of said opening, must be placed outside the envelope.
  • a luminaire provided for example for tubular lamps, is in particular intended to be installed in a suspended ceiling with visible irons.
  • a luminaire corresponding to the above preamble is known from document DE-GM-73 19557.
  • the luminaire described in this document comprises a reflector which occupies most of the interior volume of the envelope, and the closing grid, when it has a certain thickness, must necessarily be placed outside. Therefore, such fixtures are relatively bulky which is expensive from the point of view of storage and packaging.
  • the installation of such luminaires embedded in suspended ceilings due to the height of the envelope, generally requires relatively large technical gaps, of the order of 250 to 300 mm. To facilitate installation in technical voids of limited height, less than 150 mm, it has been imagined to use flexible luminaires. However, the lack of rigidity and robustness harms the image of such lighting fixtures and, moreover, makes necessary reinforced and expensive packaging.
  • the invention provides a luminaire which allows savings on transport and on storage volumes, thanks to a lower packaged volume than in the prior art. This is obtained from the fact that a free space is provided in the envelope, sufficient so that in the absence of a lamp the closing grid can enter the envelope. Thus during transport and storage the total volume is lower due to the fact that the closing grid has entered the envelope.
  • the closing grid comprises at least one recessed part for, when it has entered the envelope, to accommodate the shape of an organ.
  • the depth of the envelope can be even smaller, which facilitates its mounting in technical voids of limited height.
  • the material of the envelope is reflective so as to constitute by itself a reflector.
  • the closure grid may also include light-reflecting profiles.
  • the luminaire comprises a decorative cover to hide the organs necessary for the electrical supply, this cover is advantageously fixed by means allowing it to be removed and put back without tools.
  • the cover is advantageously provided with slots in which the louvre slats are capable of becoming embedded when the louvre is tucked into the envelope.
  • the cover can be placed, in the absence of the lamp, in another position than its working position, but nevertheless inside the envelope, in order to allow the introduction of the grid into the envelope.
  • the luminaire being of the type to be recessed in a ceiling made of suspended elements, with profiles comprising a vertical profile part and a horizontal profile part serving as a support on which the ceiling elements are placed, is advantageously provided with means for laying the envelope on the top of said vertical profile part, the closing grid being placed on a horizontal profile part in place of a ceiling element.
  • the luminaire is packaged in a transport carton, the luminaire is placed there with the closing grid returned to the envelope and the interior dimensions of the carton are then reduced to those of the envelope alone.
  • Figure 1 shows schematically in cross section a luminaire according to the invention, of a type provided for tubular lamps, at the top in the use position, and at the bottom in the transport position.
  • 2 shows a longitudinal section along AA of Figure 1, of one end of the same luminaire in the position of use.
  • the luminaire which will now be described is designed for a linear type lamp, for example one of those known under the references TL, PL (fluorescent tubes).
  • the luminaire of FIG. 1 comprises a rigid envelope essentially comprising a profile 1 with a generally trough profile upside down (in the figure), with the opening facing downwards for the exit of the light.
  • a member 8 (for example a "ballast") is provided for the electric supply of lamps.
  • the tube supports are not shown.
  • the grid 2 is here of the type called "louvre", made of strips 10 parallel to each other. It is equipped with longitudinal reflector profiles 4, here four in number.
  • the luminaire is installed in a suspended ceiling with visible irons 3 in the shape of a T upside down.
  • two tubular lamps 9 are mounted in a fixed position.
  • the grid 2 is adapted in the opening of the irons 3, placed on a part of a horizontal profile in place of a ceiling element, and placed below the envelope on the outside thereof.
  • This way of supporting the louvre which is the simplest, requires that the spacings between bars of the ceilings are normalized, which is generally the case. Common standard irons are those called “15 mm” and those called “24 mm".
  • the envelope is fixed to the irons 3, at a certain height above the louvre 2, in particular to make room for the tubes 9.
  • the width of the envelope is slightly less than the passage dimension between the irons to facilitate the fitting of the luminaire, and it is also of a low enough height to allow its adaptation in technical voids whose height is limited to 100 mm. It is clear that with the tubes in place in the luminaire, the louvre 2 is too thick to be able to be contained in the envelope.
  • the ballast 8 is fixed longitudinally in the middle of the envelope, and covered with a decorative cover called a "ballast cover" 5.
  • the lamps are removed.
  • the louvre 2 has returned to the free space of the envelope 1, and completely contained in the latter.
  • the height of the reflector profiles 4 is limited to allow the louvre to be housed in the position shown.
  • the louvre has a recessed part, here the part below the ballast 8, for, when it has entered the envelope, to accommodate the shape of the member 8.
  • the ballast cover 5 is fixed by means allowing it to be removed and replaced without tools.
  • the internal wall of the casing 1 is reflective, for example lacquered in glossy white, so as to constitute by itself a reflector.
  • the left end of the envelope 1 of the luminaire is placed on the top of the first bars 3 of a suspended ceiling.
  • the other end, not shown, rests in the same way on top of other irons parallel to the first. So the envelope is placed at its ends, while the louvre is placed by its side edges.
  • the manner of supporting the envelope described above again assumes that the spacings between the irons of the ceilings are normalized. In the event that this condition is not fulfilled, it would however be easy to make other fixing means making it possible to obtain a similar position of the envelope, for example by means of mobile stirrups or fingers of spring wire. , attached to the casing and supported laterally on the carrier irons 3 or even the primary irons (not shown, supporting the carrier irons 3).
  • the ballast cover 5 is provided with slots 6 in which the strips 10 of the louvre are capable of being fitted when the louvre has entered the envelope.
  • the reflectors 4 are not shown in Figure 2 for simplicity.
  • the above description refers to a luminaire with two tubes, it is clear that it can easily be adapted to the case of luminaires with three or four tubes, for example those with four tubes of 600 mm which are square in shape, seen from below. In the case of three tubes, the ballast would be off-center and placed between two tubes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Packages (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The casing (1) contains a member (8) necessary for the electrical supply of at least one lighting lamp (9). In the use position (at the top) a closure grid (2) is placed in front of the casing (1), outside the latter. According to the invention, a free space is provided in the casing (1) which is sufficient so that, in the absence of a lamp, that is to say in the storage and transport position (at the bottom), the closure grid can be replaced in the casing (1). <IMAGE>

Description

La présente invention concerne un luminaire comportant une enveloppe qui contient au moins un organe nécessaire pour l'alimentation électrique d'au moins une lampe d'éclairage et qui est pourvue d'une ouverture pour la sortie de la lumière, et une grille de fermeture qui, en position d'utilisation devant la dite ouverture, doit être placée à l'extérieur de l'enveloppe.
Un tel luminaire, prévu par exemple pour des lampes tubulaires, est notamment destiné à être installé dans un plafond suspendu à fers apparents.The present invention relates to a luminaire comprising an envelope which contains at least one member necessary for the electrical supply of at least one lighting lamp and which is provided with an opening for the exit of light, and a closing grid. which, in the position of use in front of said opening, must be placed outside the envelope.
Such a luminaire, provided for example for tubular lamps, is in particular intended to be installed in a suspended ceiling with visible irons.

Un luminaire correspondant au préambule ci-dessus est connu du document DE-GM-73 19557. Le luminaire décrit dans ce document comporte un réflecteur qui occupe l'essentiel du volume intérieur de l'enveloppe, et la grille de fermeture, lorsqu'elle présente une certaine épaisseur, doit forcément être placée à l'extérieur.
De ce fait, de tels luminaires sont relativement volumineux ce qui est coûteux du point de vue stockage et emballage.
En outre l'installation de tels luminaires encastrés dans des plafonds suspendus, du fait de la hauteur de l'enveloppe, requiert généralement des vides techniques relativement importants, de l'ordre de 250 à 300 mm. Pour faciliter la mise en place dans des vides techniques de hauteur limitée, inférieure à 150 mm, on a imaginé d'utiliser des luminaires flexibles. Toutefois le manque de rigidité et de robustesse nuit à l'image de tels luminaires et en outre rend nécessaire un emballage renforcé et coûteux.A luminaire corresponding to the above preamble is known from document DE-GM-73 19557. The luminaire described in this document comprises a reflector which occupies most of the interior volume of the envelope, and the closing grid, when it has a certain thickness, must necessarily be placed outside.
Therefore, such fixtures are relatively bulky which is expensive from the point of view of storage and packaging.
In addition, the installation of such luminaires embedded in suspended ceilings, due to the height of the envelope, generally requires relatively large technical gaps, of the order of 250 to 300 mm. To facilitate installation in technical voids of limited height, less than 150 mm, it has been imagined to use flexible luminaires. However, the lack of rigidity and robustness harms the image of such lighting fixtures and, moreover, makes necessary reinforced and expensive packaging.

L'invention fournit un luminaire qui permet des économies sur le transport et sur les volumes de stockage, grâce à un volume emballé plus faible que dans l'art antérieur.
Ceci est obtenu du fait qu'un espace libre est prévu dans l'enveloppe, suffisant pour qu'en l'absence de lampe la grille de fermeture puisse rentrer dans l'enveloppe.
Ainsi pendant le transport et le stockage le volume total est plus faible du fait que la grille de fermeture est rentrée dans l'enveloppe. The invention provides a luminaire which allows savings on transport and on storage volumes, thanks to a lower packaged volume than in the prior art.
This is obtained from the fact that a free space is provided in the envelope, sufficient so that in the absence of a lamp the closing grid can enter the envelope.
Thus during transport and storage the total volume is lower due to the fact that the closing grid has entered the envelope.

Avantageusement la grille de fermeture comporte au moins une partie en retrait pour, lorsqu'elle est rentrée dans l'enveloppe, s'accommoder à la forme d'un organe.
Ainsi la profondeur de l'enveloppe peut être encore plus faible, ce qui facilite son montage dans des vides techniques de hauteur limitée. En outre il y a aussi économie sur la matière de l'enveloppe.
Pour gagner encore sur la profondeur en évitant la nécessité d'un réflecteur fixe dans l'enveloppe, la paroi interne de l'enveloppe est réfléchissante de façon à constituer par elle même un réflecteur.
Pour pallier l'absence de réflecteur optique, la grille de fermeture peut aussi comprendre des profilés réflecteurs de lumière.
Lorsque le luminaire comporte un cache décoratif pour cacher les organes nécessaires à l'alimentation électrique, ce cache est avantageusement fixé par des moyens permettant de l'enlever et de le remettre sans outil.
Lorsque la grille de fermeture est de type louvre, le cache est avantageusement muni de fentes dans lesquelles les lamelles du louvre sont susceptibles de venir s'encastrer lorsque le louvre est rentré dans l'enveloppe.
Ainsi le cache peut être placé, en l'absence de la lampe, dans une autre position que sa position de travail, mais néanmoins à l'intérieur de l'enveloppe, afin de permettre l'introduction de la grille dans l'enveloppe.
Avec toutes ces dispositions, il est possible de réaliser un luminaire dont la hauteur totale en stockage est de 60 mm seulement.
Le luminaire étant du type à encastrer dans un plafond fait d'éléments suspendus, avec des profilés comportant une partie de profil vertical et une partie de profil horizontale servant de support sur lequel sont posés les éléments de plafond, est avantageusement muni de moyens pour poser l'enveloppe sur le haut de la dite partie de profil vertical, la grille de fermeture étant posée sur une partie de profil horizontale à la place d'un élément de plafond.
Lorsque le luminaire est emballé dans un carton de transport, le luminaire y est placé avec la grille de fermeture rentrée dans l'enveloppe et les dimensions intérieures du carton sont alors réduites à celles de l'enveloppe seule.
Ces aspects de l'invention ainsi que d'autres aspects plus détaillés apparaítront plus clairement grâce à la description suivante d'un mode de réalisation non limitatif.
La figure 1 représente schématiquement en coupe transversale un luminaire selon l'invention, d'un type prévu pour des lampes tubulaires, en haut en position d'utilisation, et en bas en position de transport. La figure 2 représente une coupe longitudinale selon A-A de la figure 1, d'une extrémité du même luminaire en position d'utilisation.Advantageously, the closing grid comprises at least one recessed part for, when it has entered the envelope, to accommodate the shape of an organ.
Thus the depth of the envelope can be even smaller, which facilitates its mounting in technical voids of limited height. In addition there is also savings on the material of the envelope.
To further gain depth by avoiding the need for a fixed reflector in the envelope, the internal wall of the envelope is reflective so as to constitute by itself a reflector.
To compensate for the absence of an optical reflector, the closure grid may also include light-reflecting profiles.
When the luminaire comprises a decorative cover to hide the organs necessary for the electrical supply, this cover is advantageously fixed by means allowing it to be removed and put back without tools.
When the closing grid is of the louvre type, the cover is advantageously provided with slots in which the louvre slats are capable of becoming embedded when the louvre is tucked into the envelope.
Thus the cover can be placed, in the absence of the lamp, in another position than its working position, but nevertheless inside the envelope, in order to allow the introduction of the grid into the envelope.
With all these provisions, it is possible to produce a luminaire whose total height in storage is only 60 mm.
The luminaire being of the type to be recessed in a ceiling made of suspended elements, with profiles comprising a vertical profile part and a horizontal profile part serving as a support on which the ceiling elements are placed, is advantageously provided with means for laying the envelope on the top of said vertical profile part, the closing grid being placed on a horizontal profile part in place of a ceiling element.
When the luminaire is packaged in a transport carton, the luminaire is placed there with the closing grid returned to the envelope and the interior dimensions of the carton are then reduced to those of the envelope alone.
These aspects of the invention as well as other more detailed aspects will become more clearly apparent from the following description of a nonlimiting embodiment.
Figure 1 shows schematically in cross section a luminaire according to the invention, of a type provided for tubular lamps, at the top in the use position, and at the bottom in the transport position. 2 shows a longitudinal section along AA of Figure 1, of one end of the same luminaire in the position of use.

Le luminaire qui va être décrit maintenant est conçu pour une lampe de type linéaire, par exemple une de celles connues sous les références TL, PL (tubes fluorescents). Dans toute la description ci-après, la direction dite longitudinale sera celle de l'axe des lampes.
Le luminaire de la figure 1 comporte une enveloppe rigide comprenant essentiellement un profilé 1 de profil globalement en auge la tête en bas (sur la figure), avec l'ouverture tournée vers le bas pour la sortie de la lumière. Un organe 8 (par exemple un "ballast") est prévu pour l'alimentation électrique de lampes. Pour simplifier les figures les supports des tubes ne sont pas représentés.
La grille 2 est ici du type appelé "louvre", faite de lamelles 10 parallèles entre elles. Elle est équipée de profilés réflecteurs longitudinaux 4, ici au nombre de quatre.
En haut de la figure, le luminaire est installé dans un plafond suspendu à fers apparents 3 en forme de T la tête en bas. A l'intérieur de l'enveloppe, deux lampes 9 tubulaires sont montées en position fixe. La grille 2 est adaptée dans l'ouverture des fers 3, posée sur une partie de profil horizontale à la place d'un élément de plafond, et placée en dessous de l'enveloppe à l'extérieur de celle-ci. Cette manière de supporter le louvre, qui est la plus simple, impose que les espacements entre fers des plafonds soient normalisés, ce qui est en général le cas. Les fers normalisés courants sont ceux dits "de 15 mm" et ceux dits "de 24 mm".
L'enveloppe est fixée aux fers 3, à une certaine hauteur au dessus du louvre 2, notamment pour dégager de la place pour les tubes 9. La largeur de l'enveloppe est légèrement inférieure à la cote de passage entre les fers pour faciliter la mise en place du luminaire, et elle est aussi de hauteur assez faible pour permettre son adaptation dans des vides techniques dont la hauteur est limitée à 100 mm. Il est clair qu'avec les tubes en place dans le luminaire, le louvre 2 est trop épais pour pouvoir être contenu dans l'enveloppe.
Le ballast 8 est fixé longitudinalement au milieu de l'enveloppe, et recouvert d'un cache décoratif dit "cache-ballast" 5.The luminaire which will now be described is designed for a linear type lamp, for example one of those known under the references TL, PL (fluorescent tubes). Throughout the description below, the so-called longitudinal direction will be that of the axis of the lamps.
The luminaire of FIG. 1 comprises a rigid envelope essentially comprising a profile 1 with a generally trough profile upside down (in the figure), with the opening facing downwards for the exit of the light. A member 8 (for example a "ballast") is provided for the electric supply of lamps. To simplify the figures, the tube supports are not shown.
The grid 2 is here of the type called "louvre", made of strips 10 parallel to each other. It is equipped with longitudinal reflector profiles 4, here four in number.
At the top of the figure, the luminaire is installed in a suspended ceiling with visible irons 3 in the shape of a T upside down. Inside the envelope, two tubular lamps 9 are mounted in a fixed position. The grid 2 is adapted in the opening of the irons 3, placed on a part of a horizontal profile in place of a ceiling element, and placed below the envelope on the outside thereof. This way of supporting the louvre, which is the simplest, requires that the spacings between bars of the ceilings are normalized, which is generally the case. Common standard irons are those called "15 mm" and those called "24 mm".
The envelope is fixed to the irons 3, at a certain height above the louvre 2, in particular to make room for the tubes 9. The width of the envelope is slightly less than the passage dimension between the irons to facilitate the fitting of the luminaire, and it is also of a low enough height to allow its adaptation in technical voids whose height is limited to 100 mm. It is clear that with the tubes in place in the luminaire, the louvre 2 is too thick to be able to be contained in the envelope.
The ballast 8 is fixed longitudinally in the middle of the envelope, and covered with a decorative cover called a "ballast cover" 5.

Pour le stockage et/ou le transport du luminaire, les lampes sont enlevées. Dans le luminaire en position de stockage représenté en bas de la figure, le louvre 2 est rentré dans l'espace libre de l'enveloppe 1, et complètement contenu dans cette dernière. La hauteur des profilés réflecteurs 4 est limitée pour permettre le logement du louvre dans la position représentée. Le louvre comporte une partie en retrait, ici la partie en dessous du ballast 8, pour, lorsqu'il est rentré dans l'enveloppe, s'accommoder à la forme de l'organe 8.
Le cache-ballast 5 est fixé par des moyens permettant de l'enlever et de le remettre sans outil. Ceci permet de le monter sur le côté, vers la droite sur la figure, pour dégager le ballast 8 et permettre au louvre de s'en approcher au plus près, et de le remonter ensuite facilement à sa place dans un luminaire en position d'utilisation.
Du fait de la place réduite dans le corps du luminaire, aucun profilé réflecteur fixé à l'enveloppe n'est prévu. Pour pallier cet inconvénient, la paroi interne de l'enveloppe 1 est réfléchissante, par exemple laquée en blanc brillant, de façon à constituer par elle même un réflecteur.For storage and / or transport of the luminaire, the lamps are removed. In the luminaire in the storage position shown at the bottom of the figure, the louvre 2 has returned to the free space of the envelope 1, and completely contained in the latter. The height of the reflector profiles 4 is limited to allow the louvre to be housed in the position shown. The louvre has a recessed part, here the part below the ballast 8, for, when it has entered the envelope, to accommodate the shape of the member 8.
The ballast cover 5 is fixed by means allowing it to be removed and replaced without tools. This makes it possible to mount it on the side, to the right in the figure, to release the ballast 8 and allow the louvre to approach it as close as possible, and then easily reassemble it in its place in a luminaire in position use.
Due to the reduced space in the body of the luminaire, no reflective profile fixed to the enclosure is provided. To overcome this drawback, the internal wall of the casing 1 is reflective, for example lacquered in glossy white, so as to constitute by itself a reflector.

Sur la figure 2, l'extrémité gauche de l'enveloppe 1 du luminaire est posée sur le haut de premiers fers 3 d'un plafond suspendu. L'autre extrémité, non représentée, repose de la même façon sur le dessus d'autres fers parallèles aux premiers. Ainsi donc l'enveloppe est posée au niveau de ses extrémités, alors que le louvre est posé par ses bords latéraux.
La manière de supporter l'enveloppe décrite ci-dessus suppose là encore que les espacements entre les fers des plafonds sont normalisés. Pour le cas où cette condition ne serait pas remplie, il serait toutefois aisé de réaliser d'autres moyens de fixation permettant d'obtenir une position semblable de l'enveloppe, par exemple au moyen d'étriers mobiles ou de doigts en fil à ressort, attachés à l'enveloppe et s'appuyant latéralement sur les fers porteurs 3 ou même les fers primaires (non représentés, supportant les fers porteurs 3).
Le cache-ballast 5 est muni de fentes 6 dans lesquelles les lamelles 10 du louvre sont susceptibles de venir s'encastrer lorsque le louvre est rentré dans l'enveloppe. Les réflecteurs 4 ne sont pas représentés sur la figure 2 pour simplifier.
La description ci-dessus fait référence à un luminaire à deux tubes, il est clair qu'elle peut facilement être adaptée au cas des luminaires à trois ou quatre tubes, par exemple ceux à quatre tubes de 600 mm qui sont de forme carrée, vus de dessous. Dans le cas de trois tubes, le ballast serait décentré et placé entre deux tubes.In FIG. 2, the left end of the envelope 1 of the luminaire is placed on the top of the first bars 3 of a suspended ceiling. The other end, not shown, rests in the same way on top of other irons parallel to the first. So the envelope is placed at its ends, while the louvre is placed by its side edges.
The manner of supporting the envelope described above again assumes that the spacings between the irons of the ceilings are normalized. In the event that this condition is not fulfilled, it would however be easy to make other fixing means making it possible to obtain a similar position of the envelope, for example by means of mobile stirrups or fingers of spring wire. , attached to the casing and supported laterally on the carrier irons 3 or even the primary irons (not shown, supporting the carrier irons 3).
The ballast cover 5 is provided with slots 6 in which the strips 10 of the louvre are capable of being fitted when the louvre has entered the envelope. The reflectors 4 are not shown in Figure 2 for simplicity.
The above description refers to a luminaire with two tubes, it is clear that it can easily be adapted to the case of luminaires with three or four tubes, for example those with four tubes of 600 mm which are square in shape, seen from below. In the case of three tubes, the ballast would be off-center and placed between two tubes.

Claims (10)

  1. A luminaire comprising a housing (1) which contains at least one member (8) necessary for the electrical supply of at least one lamp (9) for lighting purposes, and provided with an opening for the emission of the light and a closing lattice (2) which is to be placed at the outside of the housing (1) in the operational position, in front of said opening, characterized in that a free space is provided in the housing (1) sufficiently large for the closing lattice (2) to be accommodated in the housing (1) in the absence of a lamp (9).
  2. A luminaire as claimed in the preceding claim, characterized in that the closing lattice (2) comprises at least one recessed portion which is adapted so as to fit the shape of a member (8) when the lattice (2) is accommodated in the housing (1).
  3. A luminaire as claimed in any one of the preceding claims, characterized in that the inner wall of the housing is reflecting.
  4. A luminaire as claimed in any one of the preceding claims, characterized in that the closing lattice (2) comprises profiles (4) which reflect light.
  5. A luminaire as claimed in any one of the preceding claims, characterized in that the closing lattice (2) is of the louvre type comprising slats (10).
  6. A luminaire as claimed in any one of the preceding claims, characterized in that it comprises a decorative cover (5) for hiding the member (8) for the electrical supply, which decorative cover is fixed by means which render it possible to dismount and remount it without tools.
  7. A luminaire as claimed in the preceding claim, whose closing lattice is of the louvre type comprising slats, characterized in that the decorative cover (5) is provided with slots (6) in which the slats of the louvre can lock themselves when the louvre is inserted in the housing (1).
  8. A luminaire as claimed in any one of the preceding claims, which is of a type to be incorporated in a ceiling made of suspended elements, with profiled supports comprising a vertical profile portion and a horizontal profile portion (3) serving as a support on which the ceiling elements are placed, characterized in that the closing lattice is placed on a horizontal profile portion (3) so as to take the place of a ceiling element.
  9. A luminaire as claimed in any one of the preceding claims, of the type which is to be incorporated in a ceiling made of suspended elements, with profiled supports (3) comprising a vertical profile portion and a horizontal profile portion serving as a support on which the ceiling elements are placed, characterized in that it is provided with means (Fig. 2) for placing the housing (1) on top of said vertical profile portion.
  10. An assembly of a luminaire as claimed in any one of the preceding claims and its packaging, characterized in that the interior dimensions of the packaging are substantially those of the housing such that the luminaire can be placed in said packaging with the closing lattice (2) accommodated in the housing (1).
EP94203104A 1993-11-03 1994-10-26 Luminaire comprising a housing and a closing louvre Expired - Lifetime EP0651201B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9313048 1993-11-03
FR9313048A FR2712068A1 (en) 1993-11-03 1993-11-03 Luminaire with an envelope and a closing grid.

Publications (2)

Publication Number Publication Date
EP0651201A1 EP0651201A1 (en) 1995-05-03
EP0651201B1 true EP0651201B1 (en) 1998-04-08

Family

ID=9452446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94203104A Expired - Lifetime EP0651201B1 (en) 1993-11-03 1994-10-26 Luminaire comprising a housing and a closing louvre

Country Status (6)

Country Link
EP (1) EP0651201B1 (en)
AT (1) ATE164932T1 (en)
DE (1) DE69409461T2 (en)
DK (1) DK0651201T3 (en)
ES (1) ES2117757T3 (en)
FR (1) FR2712068A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009006399U1 (en) * 2009-04-30 2010-09-16 Zumtobel Lighting Gmbh Grid element for a luminaire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2350563A1 (en) * 1973-10-09 1975-04-24 Trilux Lenze Gmbh & Co Kg LATCH FOR FASTENING A LIGHT COVER ON A LIGHT HOUSING
US4133160A (en) * 1977-09-19 1979-01-09 Segil Arthur W Light reflecting and shielding modules for suspended ceilings and accessories therefor

Also Published As

Publication number Publication date
FR2712068A1 (en) 1995-05-12
DK0651201T3 (en) 1999-02-01
ATE164932T1 (en) 1998-04-15
ES2117757T3 (en) 1998-08-16
DE69409461D1 (en) 1998-05-14
DE69409461T2 (en) 1998-10-15
EP0651201A1 (en) 1995-05-03

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