EP0785394A1 - Lighting assembly for telephone booth and telephone booth comprising such a lighting assembly - Google Patents

Lighting assembly for telephone booth and telephone booth comprising such a lighting assembly Download PDF

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Publication number
EP0785394A1
EP0785394A1 EP97420011A EP97420011A EP0785394A1 EP 0785394 A1 EP0785394 A1 EP 0785394A1 EP 97420011 A EP97420011 A EP 97420011A EP 97420011 A EP97420011 A EP 97420011A EP 0785394 A1 EP0785394 A1 EP 0785394A1
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EP
European Patent Office
Prior art keywords
cover
lighting unit
telephone booth
cabin
unit according
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.)
Withdrawn
Application number
EP97420011A
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German (de)
French (fr)
Inventor
Claude Senebier
Joseph Bourret
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.)
Mecelec Industries SAS
Original Assignee
Mecelec Industries SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mecelec Industries SAS filed Critical Mecelec Industries SAS
Publication of EP0785394A1 publication Critical patent/EP0785394A1/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
    • E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
    • E04H1/14—Telephone cabinets
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices

Definitions

  • the invention relates to a telephone booth lighting unit and to a telephone booth comprising such a lighting unit.
  • a telephone booth lighting unit generally comprises a lamp, for example of the neon type, electrically powered from the mains and placed in the ceiling of a booth in order to light the interior thereof to allow the use of the public telephone of the "PUBLIPHONE" type (registered trademark) whatever the external light conditions.
  • a lighting unit is installed inside a cabin for the main part of its lifespan, this lifespan being several years, or even several decades.
  • the lighting unit of a cabin is generally separated from the interior of the latter by a translucent basin.
  • This basin therefore protects the lighting unit from any act of vandalism; it also isolates the lighting unit from inside the cabin and therefore guarantees that a user of the public telephone will not be in contact with the electrical current from the sector circulating in the lamp or in its associated electrical supply device which may include high capacity components, such as, for example, the ballast or the starter of a neon lamp.
  • the electrical or electronic power supply assemblies for the lamp of an electrical cabin lighting unit must comply with the directives on the electromagnetic compatibility of electrical devices.
  • the radiation emitted by these systems must not disturb the operation of other electrical or electronic devices located nearby and in particular must not disturb the operation of the public telephone in the cabin. In the same way, it is important that the operation of this electrical supply system is not disturbed by the electromagnetic waves passing near the cabin.
  • ballasts and cables of a device for powering a lamp radiate. Indeed, the ballasts have a large inductance and the cables are equivalent to antennas, which, in both cases facilitates radiation.
  • Telephone booth lighting units of the prior art do not comply with the directives concerning the electromagnetic compatibility of electrical assemblies or electronic because they are made up of passive components to which these directives do not apply directly and which do not form a closed whole.
  • the invention therefore aims to provide a telephone booth lighting block in the vicinity of which or on which it is possible to intervene without any particular electrical qualification and which complies with the directives on electromagnetic compatibility.
  • the invention relates to a telephone booth lighting unit comprising at least one lamp, an associated power supply device, the lighting unit being separated from the interior of said booth by a removable bowl, and a cover separating the power supply device from the cabin, including when the bowl is removed or removed.
  • This lighting unit is characterized in that the cover comprises a conductive layer connected to the ground.
  • the cover separating the electrical supply device from the interior of the cabin contributes to the electromagnetic isolation of this device and thus makes it conform to the directives in the matter.
  • the cover constitutes a shielding of the electrical supply device of the lamp which makes it possible to guarantee the electromagnetic compatibility of the assembly.
  • the cover is made of an electrically insulating material.
  • the cover is made of electrically conductive material.
  • the conductive layer is produced by the same frame of the cover, which is particularly simple to produce and constitutes an effective electromagnetic shielding.
  • the lamp supply device is mounted on the internal face of the cover.
  • the lighting unit of the invention can include means for fixing to the cabin, accessible without removing the cover, so that the whole unit can be removed from the cabin without direct access. to the power supply device.
  • the lighting unit comprises locking means capable of preventing the removal of the cover when the unit is installed in the cabin.
  • locking means capable of preventing the removal of the cover when the unit is installed in the cabin.
  • the block comprises means for supplying current to said supply device and said lamp able to be opened by dismantling said fixing means.
  • the block comprises at least two lamps supplied electrically in parallel, so that, if one of these lamps is broken, the cabin is still sufficiently lit to allow use public telephone.
  • the two lamps can be of the neon gas type, of toric shape and arranged concentrically or of rectilinear shape and arranged in parallel.
  • the lighting unit comprises a deflector arranged between the lamps and the roof of the cabin.
  • the invention finally relates to a telephone booth comprising a lighting unit as described above.
  • the cabin 1 in FIG. 1 comprises a public telephone 2 housed inside an envelope, for example made of glass 3, and carried by a support post 4.
  • the envelope 3 is delimited in its lower part by a floor 5 and in its upper part by a roof 6.
  • a translucent basin 7 delimits the center of the upper part of the interior volume of the cabin.
  • This basin may consist of one or more plates of a translucent material such as glass or a plastic material of the "PLEXIGLASS" type (registered trademark), removably mounted on rails 7 a and 7 b fixed against the walls of the cabin.
  • the basin could also be constituted by a panel articulated by means of hinges on one of the rails 7 a or 7 b .
  • a lighting unit 8 essentially comprising two circular neon lamps 9 and 10 supplied in parallel and arranged concentrically in front of a reflector 11 intended to direct the light emitted by the lamps 9 and 10 towards the interior of the cabin through the basin 7.
  • the electrical supply devices for the lamps 9 and 10 include a ballast 12 and 12 'and a starter 13 and 13' respectively mounted in parallel on a quick connection terminal 14 to which a fuse holder block 15 is connected.
  • a cover 20 isolates the ballasts 12 and 12 ', the starters 13 and 13', the quick connection terminal 14 and the fuse holder 15 from inside the cabin, including when the bowl 7 is removed or folded down.
  • a maintenance agent can intervene on the basin 7, or even change one of the lamps 9 or 10 without any risk of electric shock.
  • all of the parts subjected to high tensions are protected by the cover 20.
  • the cover is made of an electrically insulating material such as a plastic material and its shape is given to it by thermoforming.
  • the inner face of the cover 20 is metallized, so that it is coated with a conductive layer 25 which can be connected to the earth potential by an electrical conductor 26 in contact with both the layer 25 and with the base 22 which is itself connected to the ground.
  • the cover 20 can be provided with a conductive layer constituted by a metal plate matching the internal shape of the cover 20.
  • the cover 20 constitutes a shielding of all the electrical components that it contains, so that the light unit can comply with the directives regarding the electromagnetic compatibility of electrical and electronic devices.
  • the electromagnetic shielding obtained thanks to the invention is effective even when the bowl 7 is deposited or moved away from its normal position.
  • the base 22 is fixed to the roof 6 of the cabin by two screws 29 and 30 which are accessible without removing the cover 20.
  • the whole of the lighting unit can therefore be removed from the cabin without the cover 20 being removed from the lighting unit. This further contributes to the security of the device.
  • the cover 20 is fixed to the base 22 on the one hand by a tongue 20 a which penetrates into a slot 22 a of the base 22 and on the other hand by an angle 22 b of the base 22 which is folded over a tab 20 b of the cover 20.
  • the screws 29 and 30 pass through both the cover 20 and the base 22 so that it is not possible to extract the cover 20 from the lighting unit when the screws 29 and 30 are in place.
  • the screws 29 and 30 are capable of preventing the cover from being dismantled when the block is installed in the cabin since, if the screws 29 and 30 are dismantled, the entire lighting unit does not is more integral with the roof 6.
  • the bracket 22 b is destroyed when the tongue 20 b and the bracket 22 b are disengaged. In this case, it can be guaranteed that any disassembly of the cover 20 relative to the base 22 will be easily detectable since the locking means are destructible during each disassembly of the cover 20.
  • an approval of the entire device relative the directives relating to the electromagnetic compatibility of electrical or electronic assemblies could only be granted for an integral device, that is to say one that has never been dismantled.
  • FIG. 4 represents a second embodiment of a telephone booth lighting unit according to the invention in which elements similar to those of the embodiment of FIGS. 1 to 3 bear identical references increased by 50.
  • the unit lighting 58 differs from the previous one essentially in that the two lamps 59 and 60 are of rectilinear shape and arranged in parallel.
  • the power devices associated with each of these lamps are mounted in the interval between these and are covered with a cover 70 whose function is identical to that of the cover 20 of the embodiment of Figures 1 and 2.
  • Two screws 79 and 80 fix both the cover 70 on the base 72 and the entire lighting unit 58 on the roof, not shown, of a telephone box.
  • FIG. 5 represents a third embodiment of a telephone booth lighting unit according to the invention in which elements similar to those of the embodiment of FIGS. 1 to 3 bear identical references increased by 100.
  • This unit lighting 108 differs from the previous ones essentially in that the cover 120 is made of an electrically conductive material such as for example steel, zinc, aluminum or an alloy of these bodies.
  • the ballasts 112 and 112 ', the starters 113 and 113', a quick connection terminal 114 and a fuse holder block 115 are fixed on the internal or upper face of the cover 120, so that the lighting unit thus produced can be set up in one operation against the roof, not shown, of a telephone booth.
  • the female plugs of the quick connector 114 are oriented upwards so that they can cooperate with the male plugs of an associated connector fixedly mounted on the cab roof.
  • Two pins 130 and 131 are provided to penetrate holes in the roof of the cabin while two holes 132 and 133 are provided in the cover 120 to be crossed by fixing screws on the roof of the cabin.
  • the cover 120 is made of an electrically conductive material, it suffices to ground it to achieve particularly effective electromagnetic shielding in a very simple way.
  • two lamps 109 and 110 of the neon gas type and of toric shape are arranged concentrically on the underside of the cover 120.
  • the lighting unit comprises two lamps mounted in parallel, which makes the telephone booth usable even if one of the two lamps in question is out of use. It is for this purpose that the reflector 11 is mounted between the lamps 9 and 10 and the roof 6. In fact, thanks to the reflector, it is possible to obtain sufficient brightness inside the cabin, ie from the 'order of 200 lux, when only one lamp with a power of about 60 watts is used, since the deflector 11 directs the light emitted by each of the lamps 9 and 10 towards the interior of the cabin. Although this is not shown in FIG.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The lighting unit (8) has a lamp (9,10) and an associated supply (12-15). The lighting unit is separated from the interior of the telephone box by a removable cover (7). Once the cover is removed the electrical supply remains covered by an supply cover (20). The supply cover has a conductive layer (25) which is connected to earth. The supply cover can be made of an insulating material with a conductive coating over its outer surface, or may be made of a conductive material. The electrical supply components are mounted on the underside of the supply cover, and the cover is positioned so it cannot be removed from the inside of the telephone box.

Description

L'invention a trait à un bloc d'éclairage de cabine téléphonique et à une cabine téléphonique comportant un tel bloc d'éclairage.The invention relates to a telephone booth lighting unit and to a telephone booth comprising such a lighting unit.

Un bloc d'éclairage de cabine téléphonique comprend généralement une lampe, par exemple du type au néon, alimentée électriquement à partir du secteur et disposée dans le plafond d'une cabine afin d'éclairer l'intérieur de celle-ci pour permettre l'utilisation du téléphone public du genre "PUBLIPHONE" (marque déposée) quelles que soient les conditions extérieures de luminosité. Un tel bloc d'éclairage est installé à l'intérieur d'une cabine pour l'essentiel de la durée de vie de celle-ci, cette durée de vie étant de plusieurs années, voire plusieurs dizaines d'années. Le bloc d'éclairage d'une cabine est généralement séparé de l'intérieur de celle-ci par une vasque translucide. Cette vasque permet donc de protéger le bloc d'éclairage de tout acte de vandalisme ; elle isole aussi le bloc d'éclairage de l'intérieur de la cabine et garantit donc qu'un utilisateur du téléphone public ne sera pas en contact avec le courant électrique du secteur circulant dans la lampe ou dans son dispositif d'alimentation électrique associé qui peut comprendre des composants de capacité élevée, tels que, par exemple, le ballast ou le démarreur d'une lampe au néon.A telephone booth lighting unit generally comprises a lamp, for example of the neon type, electrically powered from the mains and placed in the ceiling of a booth in order to light the interior thereof to allow the use of the public telephone of the "PUBLIPHONE" type (registered trademark) whatever the external light conditions. Such a lighting unit is installed inside a cabin for the main part of its lifespan, this lifespan being several years, or even several decades. The lighting unit of a cabin is generally separated from the interior of the latter by a translucent basin. This basin therefore protects the lighting unit from any act of vandalism; it also isolates the lighting unit from inside the cabin and therefore guarantees that a user of the public telephone will not be in contact with the electrical current from the sector circulating in the lamp or in its associated electrical supply device which may include high capacity components, such as, for example, the ballast or the starter of a neon lamp.

Or, au cours de la durée de vie d'une cabine téléphonique, il est nécessaire d'effectuer des opérations de maintenance sur le bloc d'éclairage. Par exemple, il peut être nécessaire de démonter la vasque pour en éliminer les insectes morts qui sont tombés après avoir été brûlés par la lampe. De même, de la poussière se dépose sur la vasque qu'il est nécessaire de nettoyer périodiquement. Enfin, la lampe du bloc d'éclairage peut ne plus fonctionner et il est nécessaire de démonter la vasque afin de changer la lampe en question. Dans tous les cas, une fois la vasque ôtée, le bloc d'éclairage n'est plus isolé par rapport à l'intérieur de la cabine. Compte tenu du courant transitant dans le bloc d'éclairage, celui-ci constitue un dispositif dangereux qui ne peut être manipulé que par un personnel spécialisé et disposant d'une habilitation à cet effet.However, during the lifetime of a telephone booth, it is necessary to carry out maintenance operations on the lighting unit. For example, it may be necessary to disassemble the bowl to remove dead insects that have fallen after being burned by the lamp. Likewise, dust is deposited on the basin which must be cleaned periodically. Finally, the lamp in the lighting unit may no longer function and it is necessary to dismantle the basin in order to change the lamp in question. In all cases, once the bowl has been removed, the lighting unit is no longer isolated from the interior of the cabin. Given the current flowing in the lighting unit, it constitutes a dangerous device which can only be handled by specialized personnel who have the necessary authorization to do so.

Or, le personnel qui effectue les opérations de maintenance courantes à l'intérieur des cabines téléphoniques des lieux publics dépend généralement d'une entreprise de nettoyage et ne possède pas la qualification nécessaire pour intervenir sur des dispositifs réputés dangereux. Ainsi, les opérations de nettoyage de la vasque d'une cabine téléphonique ne peuvent être effectuées que par un personnel hautement qualifié et disposant d'une homologation électrique particulière. Ceci majore d'autant le coût des interventions de maintenance sur ce type de dispositif. De même, lorsque les services municipaux d'une commune détectent qu'une lampe d'éclairage d'une cabine téléphonique est défectueuse, ils doivent faire appel à un personnel spécialisé pour intervenir sur le bloc d'éclairage de la cabine téléphonique.However, the personnel who carry out routine maintenance operations inside telephone booths in public places generally depend on a cleaning company and do not have the necessary qualifications to work on devices deemed to be dangerous. Thus, the operations of cleaning the basin of a telephone booth can only be carried out by highly qualified personnel with a specific electrical certification. This increases all the more the cost of maintenance interventions on this type of device. Likewise, when the municipal services of a municipality detect that a lighting lamp in a telephone booth is defective, they must call on specialized personnel to intervene in the lighting block of the telephone booth.

Par le brevet US-A-2 982 196, on connaît un bloc d'éclairage de cabine téléphonique dans lequel une enceinte située au-dessus d'une vasque amovible renferme les ballast et démarreurs associés à plusieurs lames d'éclairage.By patent US-A-2 982 196, a telephone booth lighting unit is known in which an enclosure situated above a removable basin encloses the ballast and starters associated with several lighting blades.

Par ailleurs, les ensembles électriques ou électroniques d'alimentation de la lampe d'un bloc d'éclairage d'une cabine électrique doivent être conforme aux directives sur la compatibilité électro-magnétique des dispositifs électriques. Ainsi, le rayonnement émis par ces systèmes ne doit pas perturber le fonctionnement des autres dispositifs électriques ou électroniques situés à proximité et en particulier ne doivent pas perturber le fonctionnement du téléphone public de la cabine. De la même manière, il est important que le fonctionnement de ce système d'alimentation électrique ne soit pas perturbé par les ondes électromagnétiques transitant à proximité de la cabine.In addition, the electrical or electronic power supply assemblies for the lamp of an electrical cabin lighting unit must comply with the directives on the electromagnetic compatibility of electrical devices. Thus, the radiation emitted by these systems must not disturb the operation of other electrical or electronic devices located nearby and in particular must not disturb the operation of the public telephone in the cabin. In the same way, it is important that the operation of this electrical supply system is not disturbed by the electromagnetic waves passing near the cabin.

On sait que les ballasts et les câbles d'un dispositif d'alimentation électrique d'une lampe telle qu'une lampe au néon rayonnent. En effet, les ballasts ont une inductance importante et les câbles sont équivalents à des antennes, ce qui, dans les deux cas facilite le rayonnement.We know that the ballasts and cables of a device for powering a lamp such as a neon lamp radiate. Indeed, the ballasts have a large inductance and the cables are equivalent to antennas, which, in both cases facilitates radiation.

Les blocs d'éclairage de cabine téléphonique de l'art antérieur ne sont pas conformes aux directives concernant la compatibilité électromagnétique des ensembles électriques ou électroniques car ils sont constitués de composants passifs auxquels ces directives ne s'appliquent pas directement et qui ne forment par un ensemble fermé.Telephone booth lighting units of the prior art do not comply with the directives concerning the electromagnetic compatibility of electrical assemblies or electronic because they are made up of passive components to which these directives do not apply directly and which do not form a closed whole.

L'invention vise donc à fournir un bloc d'éclairage de cabine téléphonique à proximité duquel ou sur lequel il est possible d'intervenir sans qualification électrique particulière et qui soit conforme aux directives sur la compatibilité électromagnétique.The invention therefore aims to provide a telephone booth lighting block in the vicinity of which or on which it is possible to intervene without any particular electrical qualification and which complies with the directives on electromagnetic compatibility.

Dans cet esprit, l'invention concerne un bloc d'éclairage de cabine téléphonique comprenant au moins une lampe, un dispositif d'alimentation associé, le bloc d'éclairage étant séparé de l'intérieur de ladite cabine par une vasque amovible, et un capot séparant le dispositif d'alimentation électrique de la cabine, y compris lorsque la vasque est déposée ou écartée. Ce bloc d'éclairage est caractérisé en ce que le capot comprend une couche conductrice reliée à la terre.In this spirit, the invention relates to a telephone booth lighting unit comprising at least one lamp, an associated power supply device, the lighting unit being separated from the interior of said booth by a removable bowl, and a cover separating the power supply device from the cabin, including when the bowl is removed or removed. This lighting unit is characterized in that the cover comprises a conductive layer connected to the ground.

Grâce à l'invention, lorsqu'un opérateur de maintenance dépose la vasque de la cabine, il ne peut toucher le dispositif d'alimentation de la lampe du bloc d'éclairage et ne court donc aucun danger d'électrocution car la lampe n'est pas électriquement dangereuse en elle-même. L'opérateur peut donc procéder aux opérations de nettoyage de la vasque et du bloc d'éclairage en toute sécurité. Il peut même procéder sans danger à une opération de changement de la lampe à titre préventif ou lorsque celle-ci n'est plus en état de fonctionnement. En outre, le capot séparant le dispositif d'alimentation électrique de l'intérieur de la cabine contribue à l'isolation électromagnétique de ce dispositif et le rend ainsi conforme aux directives en la matière. En effet, le capot constitue un blindage du dispositif d'alimentation électrique de la lampe qui permet de garantir la compatibilité électromagnétique de l'ensemble.Thanks to the invention, when a maintenance operator removes the bowl from the cabin, he cannot touch the lamp supply device of the lighting unit and therefore does not run any danger of electric shock because the lamp does not is not electrically dangerous in itself. The operator can therefore safely clean the basin and the light unit. It can even safely carry out an operation to change the lamp as a precaution or when it is no longer in working order. In addition, the cover separating the electrical supply device from the interior of the cabin contributes to the electromagnetic isolation of this device and thus makes it conform to the directives in the matter. Indeed, the cover constitutes a shielding of the electrical supply device of the lamp which makes it possible to guarantee the electromagnetic compatibility of the assembly.

Selon un premier mode de réalisation de l'invention, le capot est réalisé dans un matériau électriquement isolant.According to a first embodiment of the invention, the cover is made of an electrically insulating material.

Selon un autre mode de réalisation de l'invention, le capot est réalisé en matériau électriquement conducteur. Dans ce cas, la couche conductrice est réalisée par l'armature même du capot, ce qui est particulièrement simple à réaliser et constitue un blindage électromagnétique efficace.According to another embodiment of the invention, the cover is made of electrically conductive material. In this case, the conductive layer is produced by the same frame of the cover, which is particularly simple to produce and constitutes an effective electromagnetic shielding.

Selon une mode de réalisation avantageux de l'invention et quel que soit le matériau utilisé pour la fabrication du capot, on peut prévoir que le dispositif d'alimentation de la lampe est monté sur la face interne du capot.According to an advantageous embodiment of the invention and whatever the material used for the manufacture of the cover, it can be provided that the lamp supply device is mounted on the internal face of the cover.

Pour des raisons de sécurité, on peut prévoir que le bloc d'éclairage de l'invention comporte des moyens de fixation à la cabine accessibles sans démontage du capot, de sorte que l'ensemble du bloc peut être démonté de la cabine sans accès direct au dispositif d'alimentation électrique.For security reasons, provision can be made for the lighting unit of the invention to include means for fixing to the cabin, accessible without removing the cover, so that the whole unit can be removed from the cabin without direct access. to the power supply device.

Selon une autre variante avantageuse de l'invention, le bloc d'éclairage comprend des moyens de verrouillage aptes à empêcher le démontage du capot lorsque le bloc est installé dans la cabine. Ainsi, il est nécessaire de démonter l'ensemble du bloc de la cabine avant de pouvoir accéder au dispositif d'alimentation électrique de la lampe. Ceci contribue encore à améliorer la sécurité du dispositif puisque le dispositif d'alimentation électrique n'est pas accessible lorsqu'il est sous tension. On peut en outre prévoir que les moyens de verrouillage sont destructibles lors de chaque démontage du capot.According to another advantageous variant of the invention, the lighting unit comprises locking means capable of preventing the removal of the cover when the unit is installed in the cabin. Thus, it is necessary to dismantle the entire block of the cabin before being able to access the lamp's electrical supply device. This further contributes to improving the safety of the device since the electrical supply device is not accessible when it is energized. It can also be provided that the locking means are destructible during each removal of the cover.

Selon un autre aspect avantageux de l'invention, le bloc comprend des moyens d'alimentation en courant dudit dispositif d'alimentation et de ladite lampe aptes à être ouverts par le démontage desdits moyens de fixation.According to another advantageous aspect of the invention, the block comprises means for supplying current to said supply device and said lamp able to be opened by dismantling said fixing means.

Selon une autre variante avantageuse de l'invention, le bloc comprend au moins deux lampes alimentées électriquement en parallèle, de sorte que, si l'une de ces lampes est en panne, la cabine est encore éclairée de façon suffisante pour permettre l'utilisation de téléphone public. Les deux lampes peuvent être du type à gaz néon, de forme torique et disposées concentriquement ou de forme rectiligne et disposées parallèlement.According to another advantageous variant of the invention, the block comprises at least two lamps supplied electrically in parallel, so that, if one of these lamps is broken, the cabin is still sufficiently lit to allow use public telephone. The two lamps can be of the neon gas type, of toric shape and arranged concentrically or of rectilinear shape and arranged in parallel.

Selon un autre mode de réalisation avantageux de l'invention, le bloc d'éclairage comprend un déflecteur disposé entre les lampes et le toit de la cabine.According to another advantageous embodiment of the invention, the lighting unit comprises a deflector arranged between the lamps and the roof of the cabin.

L'invention concerne enfin une cabine téléphonique comportant un bloc d'éclairage tel que décrit précédemment.The invention finally relates to a telephone booth comprising a lighting unit as described above.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre de trois modes de réalisation d'un bloc d'éclairage de cabine téléphonique conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • La figure 1 est un schéma de principe en coupe d'une cabine téléphonique incorporant un bloc d'éclairage conforme à l'invention.
  • La figure 2 est une vue à plus grande échelle du bloc d'éclairage de la figure 1 ;
  • La figure 3 est une vue en perspective du bloc d'éclairage de la cabine de la figure 1 ;
  • La figure 4 est une vue en perspective d'un bloc d'éclairage conforme à un second mode de réalisation de l'invention et
  • La figure 5 est une vue en perspective d'un bloc d'éclairage conforme à un troisième mode de réalisation de l'invention.
The invention will be better understood and other advantages of this will appear more clearly in the light of the following description of three embodiments of a telephone booth lighting unit in accordance with its principle, given solely by way of example and made with reference to the drawings appended in which :
  • Figure 1 is a block diagram of a telephone box incorporating a lighting unit according to the invention.
  • Figure 2 is an enlarged view of the lighting unit of Figure 1;
  • Figure 3 is a perspective view of the lighting unit of the cabin of Figure 1;
  • FIG. 4 is a perspective view of a lighting unit according to a second embodiment of the invention and
  • Figure 5 is a perspective view of a lighting unit according to a third embodiment of the invention.

La cabine 1 de la figure 1 comprend un téléphone public 2 logé à l'intérieur d'une enveloppe, par exemple en verre 3, et porté par un poteau-support 4. L'enveloppe 3 est délimitée dans sa partie inférieure par un plancher 5 et dans sa partie supérieure par un toit 6. Comme il apparaît plus clairement à la figure 2, une vasque translucide 7 délimite le centre de la partie supérieure du volume intérieur de la cabine. Cette vasque peut être constituée par une ou plusieurs plaques d'un matériau translucide tel que du verre ou un matériau plastique du genre "PLEXIGLASS" (marque déposée), montées de façon amovible sur des rails 7a et 7b fixés contre les parois de la cabine. La vasque pourrait aussi être constituée par un panneau articulé au moyen de charnières sur l'un des rails 7a ou 7b. Entre le toit 6 et la vasque 7 est disposé un bloc d'éclairage 8 comprenant essentiellement deux lampes au néon circulaires 9 et 10 alimentées en parallèle et disposées concentriquement à l'avant d'un réflecteur 11 destiné à diriger la lumière émise par les lampes 9 et 10 vers l'intérieur de la cabine à travers la vasque 7. Comme il est visible à la figure 3, les dispositifs d'alimentation électriques des lampes 9 et 10 comprennent respectivement un ballast 12 et 12' et un démarreur 13 et 13' montés en parallèle sur une borne de connexion rapide 14 à laquelle est relié un bloc porte-fusible 15.The cabin 1 in FIG. 1 comprises a public telephone 2 housed inside an envelope, for example made of glass 3, and carried by a support post 4. The envelope 3 is delimited in its lower part by a floor 5 and in its upper part by a roof 6. As it appears more clearly in FIG. 2, a translucent basin 7 delimits the center of the upper part of the interior volume of the cabin. This basin may consist of one or more plates of a translucent material such as glass or a plastic material of the "PLEXIGLASS" type (registered trademark), removably mounted on rails 7 a and 7 b fixed against the walls of the cabin. The basin could also be constituted by a panel articulated by means of hinges on one of the rails 7 a or 7 b . Between the roof 6 and the basin 7 is disposed a lighting unit 8 essentially comprising two circular neon lamps 9 and 10 supplied in parallel and arranged concentrically in front of a reflector 11 intended to direct the light emitted by the lamps 9 and 10 towards the interior of the cabin through the basin 7. As can be seen in FIG. 3, the electrical supply devices for the lamps 9 and 10 include a ballast 12 and 12 'and a starter 13 and 13' respectively mounted in parallel on a quick connection terminal 14 to which a fuse holder block 15 is connected.

Un capot 20 isole les ballasts 12 et 12', les démarreurs 13 et 13', la borne de connexion rapide 14 et le porte-fusible 15 de l'intérieur de la cabine, y compris lorsque la vasque 7 est déposée ou rabattue. Ainsi, un agent de maintenance peut intervenir sur la vasque 7, voire même changer une des lampes 9 ou 10 sans aucun risque d'électrocution. En effet, l'ensemble des pièces soumises à des tensions importantes est protégé par le capot 20.A cover 20 isolates the ballasts 12 and 12 ', the starters 13 and 13', the quick connection terminal 14 and the fuse holder 15 from inside the cabin, including when the bowl 7 is removed or folded down. Thus, a maintenance agent can intervene on the basin 7, or even change one of the lamps 9 or 10 without any risk of electric shock. In fact, all of the parts subjected to high tensions are protected by the cover 20.

Seuls deux connecteurs électriques 21 et 21' sortent du volume défini par le capot 20 et l'embase 22 du bloc d'éclairage par un orifice 23 et parviennent à travers un second orifice 24 à proximité des lampes 9 et 10. On prévoit que l'extrémité de ces connecteurs 21 et 21' est munie d'une prise femelle dont les fiches sont enchâssées dans un corps en matière isolante apte à pénétrer dans un orifice des lampes 9 et 10 muni de deux fiches mâles, de sorte que les fiches mâles ne peuvent pas être touchées par un opérateur qui manipule ces lampes et que les extrémités des connecteurs 21 et 21' ne portent pas de parties saillantes alimentées par le secteur. Ceci écarte tout danger d'électrocution.Only two electrical connectors 21 and 21 'leave the volume defined by the cover 20 and the base 22 of the lighting unit through an orifice 23 and arrive through a second orifice 24 near the lamps 9 and 10. It is expected that the 'end of these connectors 21 and 21' is provided with a female socket whose plugs are embedded in a body of insulating material able to penetrate into an orifice of the lamps 9 and 10 provided with two male plugs, so that the male plugs cannot be touched by an operator who manipulates these lamps and that the ends of the connectors 21 and 21 'do not carry projecting parts supplied by the sector. This eliminates any danger of electric shock.

Dans ce mode de réalisation, le capot est réalisé en un matériau électriquement isolant telle qu'une matière plastique et sa forme lui est donnée par thermoformage. Conformément à l'invention la face intérieure du capot 20 est métallisée, de sorte qu'elle est revêtue d'une couche conductrice 25 qui peut être reliée au potentiel de la terre par un conducteur électrique 26 en contact à la fois avec la couche 25 et avec l'embase 22 qui est elle-même reliée à la terre. Selon une autre variante de l'invention, le capot 20 peut être muni d'une couche conductrice constituée par une plaque métallique épousant la forme intérieure du capot 20. Ainsi, le capot 20 constitue un blindage de l'ensemble des composants électriques qu'il renferme, de sorte que le bloc d'éclairage peut être conforme aux directives au sujet de la compatibilité électromagnétique des dispositifs électriques et électroniques. Le blindage électromagnétique obtenu grâce à l'invention est efficace même lorsque la vasque 7 est déposée ou écartée de sa position normale.In this embodiment, the cover is made of an electrically insulating material such as a plastic material and its shape is given to it by thermoforming. According to the invention the inner face of the cover 20 is metallized, so that it is coated with a conductive layer 25 which can be connected to the earth potential by an electrical conductor 26 in contact with both the layer 25 and with the base 22 which is itself connected to the ground. According to another variant of the invention, the cover 20 can be provided with a conductive layer constituted by a metal plate matching the internal shape of the cover 20. Thus, the cover 20 constitutes a shielding of all the electrical components that it contains, so that the light unit can comply with the directives regarding the electromagnetic compatibility of electrical and electronic devices. The electromagnetic shielding obtained thanks to the invention is effective even when the bowl 7 is deposited or moved away from its normal position.

L'embase 22 est fixée au toit 6 de la cabine par deux vis 29 et 30 qui sont accessibles sans démontage du capot 20. L'ensemble du bloc d'éclairage peut donc être démonté de la cabine sans que le capot 20 soit extrait du bloc d'éclairage. Ceci contribue encore à la sécurité du dispositif.The base 22 is fixed to the roof 6 of the cabin by two screws 29 and 30 which are accessible without removing the cover 20. The whole of the lighting unit can therefore be removed from the cabin without the cover 20 being removed from the lighting unit. This further contributes to the security of the device.

Le capot 20 est fixé sur l'embase 22 d'une part par une languette 20a qui pénètre dans une fente 22a de l'embase 22 et d'autre part par une cornière 22b de l'embase 22 qui est repliée sur une languette 20b du capot 20. En outre, les vis 29 et 30 traversent à la fois le capot 20 et l'embase 22 de sorte qu'il n'est pas possible d'extraire le capot 20 du bloc d'éclairage lorsque les vis 29 et 30 sont en place. En d'autres termes, les vis 29 et 30 sont aptes à empêcher le démontage du capot lorsque le bloc est installé dans la cabine puisque, si l'on démonte les vis 29 et 30, l'ensemble du bloc d'éclairage n'est plus solidaire du toit 6.The cover 20 is fixed to the base 22 on the one hand by a tongue 20 a which penetrates into a slot 22 a of the base 22 and on the other hand by an angle 22 b of the base 22 which is folded over a tab 20 b of the cover 20. In addition, the screws 29 and 30 pass through both the cover 20 and the base 22 so that it is not possible to extract the cover 20 from the lighting unit when the screws 29 and 30 are in place. In other words, the screws 29 and 30 are capable of preventing the cover from being dismantled when the block is installed in the cabin since, if the screws 29 and 30 are dismantled, the entire lighting unit does not is more integral with the roof 6.

Par un choix judicieux de la matière de l'embase 22, on peut prévoir que l'équerre 22b est détruite lorsque l'on désengage la languette 20b et l'équerre 22b. Dans ce cas, on peut garantir que tout démontage du capot 20 par rapport à l'embase 22 sera aisément décelable puisque les moyens de verrouillage sont destructibles lors de chaque démontage du capot 20. Ainsi, une homologation de l'ensemble du dispositif par rapport aux directives relatives à la compatibilité électromagnétique des ensembles électriques ou électroniques pourrait n'être accordée que pour un dispositif intègre, c'est-à-dire qui n'a jamais été démonté.By a judicious choice of the material of the base 22, it can be provided that the bracket 22 b is destroyed when the tongue 20 b and the bracket 22 b are disengaged. In this case, it can be guaranteed that any disassembly of the cover 20 relative to the base 22 will be easily detectable since the locking means are destructible during each disassembly of the cover 20. Thus, an approval of the entire device relative the directives relating to the electromagnetic compatibility of electrical or electronic assemblies could only be granted for an integral device, that is to say one that has never been dismantled.

La figure 4 représente un second mode de réalisation d'un bloc d'éclairage de cabine téléphonique conforme à l'invention dans lequel les éléments similaires à ceux du mode de réalisation des figures 1 à 3 portent des références identiques augmentées de 50. Le bloc d'éclairage 58 diffère du précédent essentiellement en ce que les deux lampes 59 et 60 sont de forme rectiligne et disposées parallèlement. Les dispositifs d'alimentation associés à chacune de ces lampes sont montés dans l'intervalle situé entre celles-ci et sont recouverts d'un capot 70 dont la fonction est identique à celle du capot 20 du mode de réalisation des figures 1 et 2. Deux vis 79 et 80 fixent à la fois le capot 70 sur l'embase 72 et l'ensemble du bloc d'éclairage 58 sur le toit non représenté d'une cabine téléphonique.FIG. 4 represents a second embodiment of a telephone booth lighting unit according to the invention in which elements similar to those of the embodiment of FIGS. 1 to 3 bear identical references increased by 50. The unit lighting 58 differs from the previous one essentially in that the two lamps 59 and 60 are of rectilinear shape and arranged in parallel. The power devices associated with each of these lamps are mounted in the interval between these and are covered with a cover 70 whose function is identical to that of the cover 20 of the embodiment of Figures 1 and 2. Two screws 79 and 80 fix both the cover 70 on the base 72 and the entire lighting unit 58 on the roof, not shown, of a telephone box.

La figure 5 représente un troisième mode de réalisation d'un bloc d'éclairage de cabine téléphonique conforme à l'invention dans lequel les éléments similaires à ceux du mode de réalisation des figures 1 à 3 portent des références identiques augmentées de 100. Ce bloc d'éclairage 108 diffère des précédents essentiellement en ce que le capot 120 est réalisé dans un matériau électriquement conducteur tel que par exemple de l'acier, du zinc, de l'aluminium ou un alliage de ces corps. Les ballasts 112 et 112', les démarreurs 113 et 113', une borne de connexion rapide 114 et un bloc porte-fusibles 115 sont fixés sur la face interne ou supérieure du capot 120, de sorte que le bloc d'éclairage ainsi réalisé peut être mis en place en une opération contre le toit non représenté d'une cabine téléphonique. Les fiches femelles du connecteur rapide 114 sont orientées vers le haut de sorte qu'elles peuvent coopérer avec les fiches mâles d'un connecteur associé monté fixe sur le contretoit de la cabine. Deux pions 130 et 131 sont prévus pour pénétrer dans des perçages du toit de la cabine alors que deux orifices 132 et 133 sont prévus dans le capot 120 pour être traversés par des vis de fixation sur le toit de la cabine.FIG. 5 represents a third embodiment of a telephone booth lighting unit according to the invention in which elements similar to those of the embodiment of FIGS. 1 to 3 bear identical references increased by 100. This unit lighting 108 differs from the previous ones essentially in that the cover 120 is made of an electrically conductive material such as for example steel, zinc, aluminum or an alloy of these bodies. The ballasts 112 and 112 ', the starters 113 and 113', a quick connection terminal 114 and a fuse holder block 115 are fixed on the internal or upper face of the cover 120, so that the lighting unit thus produced can be set up in one operation against the roof, not shown, of a telephone booth. The female plugs of the quick connector 114 are oriented upwards so that they can cooperate with the male plugs of an associated connector fixedly mounted on the cab roof. Two pins 130 and 131 are provided to penetrate holes in the roof of the cabin while two holes 132 and 133 are provided in the cover 120 to be crossed by fixing screws on the roof of the cabin.

Lorsque les vis traversant les orifices 132 et 133 sont desserées, le connecteur rapide femelle 114 est automatiquement séparé du connecteur mâle auquel il est associé, de sorte que l'ensemble des éléments portés par le capot 120 est mis hors circuit. On obtient ainsi une fonction de sécurité supplémentaire dans la mesure où le démontage des moyens de fixation logés dans les orifices 132 et 133 induit l'ouverture de la ligne d'alimentation des ballast 112 et 112', des démarreurs 113 et 113', du fusible 115 et des lampes 109 et 110.When the screws passing through the holes 132 and 133 are loosened, the female quick connector 114 is automatically separated from the male connector with which it is associated, so that all of the elements carried by the cover 120 are switched off. An additional safety function is thus obtained insofar as the dismantling of the fixing means housed in the orifices 132 and 133 induces the opening of the supply line of the ballast 112 and 112 ', of the starters 113 and 113', of the fuse 115 and lamps 109 and 110.

Dans ce mode de réalisation, comme le capot 120 est réalisé dans un matériau électriquement conducteur, il suffit de le mettre à la masse pour réaliser un blindage électromagnétique particulièrement efficace de façon très simple. Comme dans le mode de réalisation des figures 1 à 3, deux lampes 109 et 110 du type à gaz néon et de forme torique sont disposées concentriquement sur la face inférieure du capot 120.In this embodiment, as the cover 120 is made of an electrically conductive material, it suffices to ground it to achieve particularly effective electromagnetic shielding in a very simple way. As in the embodiment of FIGS. 1 to 3, two lamps 109 and 110 of the neon gas type and of toric shape are arranged concentrically on the underside of the cover 120.

Dans les trois modes de réalisation représentés, le bloc d'éclairage comprend deux lampes montées en parallèle, ce qui rend la cabine téléphonique utilisable même si l'une des deux lampes en question est hors d'usage. C'est dans ce but que le réflecteur 11 est monté entre les lampes 9 et 10 et le toit 6. En effet, grâce au réflecteur, il est possible d'obtenir une luminosité suffisante à l'intérieur de la cabine, soit de l'ordre de 200 lux, alors qu'une seule lampe d'une puissance d'environ 60 watts est utilisée, car le déflecteur 11 dirige la lumière émise par chacune des lampes 9 et 10 vers l'intérieur de la cabine. Bien que cela ne soit pas représenté sur la figure 4, il est possible de disposer un réflecteur entre les lampes 59 et 60 et l'embase 72 du second mode de réalisation de l'invention ou entre les lampes 109 et 110 et le capot 120 du troisième mode de réalisation, ce réflecteur ayant une fonction identique à celle du réflecteur 11 du mode de réalisation des figures 1 à 3.In the three embodiments shown, the lighting unit comprises two lamps mounted in parallel, which makes the telephone booth usable even if one of the two lamps in question is out of use. It is for this purpose that the reflector 11 is mounted between the lamps 9 and 10 and the roof 6. In fact, thanks to the reflector, it is possible to obtain sufficient brightness inside the cabin, ie from the 'order of 200 lux, when only one lamp with a power of about 60 watts is used, since the deflector 11 directs the light emitted by each of the lamps 9 and 10 towards the interior of the cabin. Although this is not shown in FIG. 4, it is possible to have a reflector between the lamps 59 and 60 and the base 72 of the second embodiment of the invention or between the lamps 109 and 110 and the cover 120 of the third embodiment, this reflector having a function identical to that of the reflector 11 of the embodiment of FIGS. 1 to 3.

Il est bien entendu que l'invention est utilisable quel que soit le nombre de lampes montées dans le bloc d'éclairage.It is understood that the invention can be used regardless of the number of lamps mounted in the lighting unit.

Claims (11)

Bloc d'éclairage (8) de cabine téléphonique comprenant au moins une lampe (9, 10), un dispositif d'alimentation associé (12, 12', 13, 13', 14, 15), ledit bloc d'éclairage étant séparé de l'intérieur de ladite cabine par une vasque (7) amovible et un capot (20) séparant ledit dispositif d'alimentation électrique de l'intérieur de ladite cabine y compris lorsque ladite vasque est déposée ou écartée, caractérisé en ce que ledit capot comprend une couche conductrice (25) reliée à la terre.Telephone booth light unit (8) comprising at least one lamp (9, 10), an associated supply device (12, 12 ', 13, 13', 14, 15), said light unit being separate from the interior of said cabin by a removable bowl (7) and a cover (20) separating said electrical supply device from the interior of said cabin, even when said bowl is removed or removed, characterized in that said cover includes a conductive layer (25) connected to ground. Bloc d'éclairage de cabine téléphonique selon la revendication 1, caractérisé en ce que ledit capot (20) est réalisé en un matériau électriquement isolant, ladite couche conductrice (25) étant disposée sur la face interne dudit capot.Telephone booth lighting unit according to claim 1, characterized in that said cover (20) is made of an electrically insulating material, said conductive layer (25) being arranged on the internal face of said cover. Bloc d'éclairage de cabine téléphonique selon la revendication 1, caractérisé en ce que ledit capot (120) est réalisé en matériau électriquement conducteur.Telephone booth lighting unit according to claim 1, characterized in that said cover (120) is made of electrically conductive material. Bloc d'éclairage de cabine téléphonique selon l'une des revendications 1 à 3, caractérisé en ce que ledit dispositif d'alimentation (112, 112', 113, 113', 114, 115) est monté sur la face interne dudit capot (120).Telephone booth lighting unit according to one of claims 1 to 3, characterized in that said supply device (112, 112 ', 113, 113', 114, 115) is mounted on the internal face of said cover ( 120). Bloc d'éclairage de cabine téléphonique selon la revendication 1, caractérisé en ce qu'il comporte des moyens de fixation (29, 30, 132, 133) dudit bloc à ladite cabine accessibles sans démontage dudit capot.Telephone booth lighting unit according to claim 1, characterized in that it includes means for fixing (29, 30, 132, 133) of said unit to said cabin accessible without dismantling said cover. Bloc d'éclairage de cabine téléphonique selon la revendication 1, caractérisé en ce qu'il comprend des moyens de verrouillage (20a, 22a, 20b, 22b, 29, 30) aptes à empêcher le démontage dudit capot lorsque ledit bloc est installé dans ladite cabine.Telephone booth lighting unit according to claim 1, characterized in that it comprises locking means (20 a , 22 a , 20 b , 22 b , 29, 30) capable of preventing the dismantling of said cover when said block is installed in said cabin. Bloc d'éclairage de cabine téléphonique selon la revendication 6, caractérisé en ce que lesdits moyens de verrouillage (20a, 22a, 20b, 22b) sont destructibles lors de chaque démontage dudit capot.Telephone booth lighting unit according to claim 6, characterized in that said locking means (20 a , 22 a , 20 b , 22 b ) are destructible during each dismantling of said cover. Bloc d'éclairage selon la revendication 5, caractérisé en ce qu'il comprend des moyens (114) d'alimentation en courant dudit dispositif d'alimentation (112, 112', 113, 113') et de ladite lampe (109, 110) aptes à être ouverts par le démontage desdits moyens de fixation (132, 133).Lighting unit according to claim 5, characterized in that it comprises means (114) for supplying current to said supply device (112, 112 ', 113, 113') and said lamp (109, 110) able to be opened by dismantling said means fixing (132, 133). Bloc d'éclairage de cabine téléphonique selon la revendication 1, caractérisé en ce qu'il comprend au moins deux lampes (9, 10, 59, 60) alimentées électriquement en parallèle.Telephone booth lighting unit according to claim 1, characterized in that it comprises at least two lamps (9, 10, 59, 60) supplied electrically in parallel. Dispositif d'éclairage selon la revendication 9, caractérisé en ce qu'il comprend un réflecteur (11) disposé entre lesdites lampes (9, 10) et le toit (6) de ladite cabine (1).Lighting device according to claim 9, characterized in that it comprises a reflector (11) disposed between said lamps (9, 10) and the roof (6) of said cabin (1). Cabine téléphonique (1) comportant un bloc d'éclairage selon l'une des revendications précédentes.Telephone box (1) comprising a lighting unit according to one of the preceding claims.
EP97420011A 1996-01-19 1997-01-17 Lighting assembly for telephone booth and telephone booth comprising such a lighting assembly Withdrawn EP0785394A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9600820A FR2743865B1 (en) 1996-01-19 1996-01-19 TELEPHONE CABINET LIGHTING BLOCK AND TELEPHONE BOOTH COMPRISING SUCH A LIGHTING BLOCK
FR9600820 1996-01-19

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EP0785394A1 true EP0785394A1 (en) 1997-07-23

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EP97420011A Withdrawn EP0785394A1 (en) 1996-01-19 1997-01-17 Lighting assembly for telephone booth and telephone booth comprising such a lighting assembly

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FR (1) FR2743865B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE19741119A1 (en) * 1997-09-12 1999-04-01 Deutsche Telekom Ag Public telephone booth

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Publication number Priority date Publication date Assignee Title
US2982196A (en) 1959-05-11 1961-05-02 Percival H Sherron Ceiling structure
US4432170A (en) * 1982-06-28 1984-02-21 Royston Manufacturing Corporation Outdoor telephone booth
DE9105228U1 (en) * 1990-05-22 1991-06-20 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg Luminaire for discharge lamps
DE4128605A1 (en) * 1990-08-28 1992-03-12 Koito Mfg Co Ltd Discharge headlamp for motor vehicle - has control circuit inside screenedcompartment behind lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982196A (en) 1959-05-11 1961-05-02 Percival H Sherron Ceiling structure
US4432170A (en) * 1982-06-28 1984-02-21 Royston Manufacturing Corporation Outdoor telephone booth
DE9105228U1 (en) * 1990-05-22 1991-06-20 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg Luminaire for discharge lamps
DE4128605A1 (en) * 1990-08-28 1992-03-12 Koito Mfg Co Ltd Discharge headlamp for motor vehicle - has control circuit inside screenedcompartment behind lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741119A1 (en) * 1997-09-12 1999-04-01 Deutsche Telekom Ag Public telephone booth

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FR2743865A1 (en) 1997-07-25

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