EP0466584B1 - Light projector - Google Patents

Light projector Download PDF

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Publication number
EP0466584B1
EP0466584B1 EP19910401912 EP91401912A EP0466584B1 EP 0466584 B1 EP0466584 B1 EP 0466584B1 EP 19910401912 EP19910401912 EP 19910401912 EP 91401912 A EP91401912 A EP 91401912A EP 0466584 B1 EP0466584 B1 EP 0466584B1
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EP
European Patent Office
Prior art keywords
projector
housing
lamp
sockets
base
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EP19910401912
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German (de)
French (fr)
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EP0466584A1 (en
Inventor
Marcel Perche
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PERCHE Ets
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PERCHE Ets
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/02Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing

Definitions

  • the present invention relates to lighting projectors equipped with a tubular lamp provided with contact pads at each end, for example a metal halide lamp, or a halogen lamp or even a tubular filament lamp.
  • projectors of this kind comprise two sockets which are arranged on either side of the space provided for it and which are capable of receiving the contact pads of such a lamp
  • the term "socket" generally designates any part having a receiving housing inside which is provided an electrical supply contact capable of being applied to the end contact pad of the corresponding lamp.
  • the sockets thus provided are fixed to the frame of the projector or possibly to the housing thereof.
  • the distance between the two lampholders of the same projector must correspond to the length of the type of lamp which is provided to equip it.
  • there are several types of lamps of the type in question which have different powers and have a greater or lesser length.
  • the metal halide lamps having a power of 70W have a length of approximately 120mm
  • similar lamps having a power of 150W have a length of approximately 137mm.
  • patent FR 1,162,357 describes a device making it possible to adapt lamps of different lengths.
  • this device is specially designed for tubular lamps whose end caps are intended to be engaged in contact clamps in the general shape of V.
  • the device is not likely to be used in the case considered.
  • the subject of the present invention is a lighting projector of the type in question which is designed so as to be able to be equipped indifferently with tubular lamps of two distinct types, or possibly more, and this thanks to mounting means. and adjustment which are particularly simple.
  • the invention relates to a lighting projector intended to be equipped with a tubular lamp provided with a contact pad at each end, the housing and / or the chassis of this projector comprising two sockets arranged on either side of the location of such a lamp to receive the contact pads thereof, characterized in that at least one of these sockets is fixed against the base of the projector chassis and / or against the bottom of the housing thereof, by means of a bent tab, one branch of which is integral with the corresponding socket, however its other branch is fixed against the base of the projector chassis and / or against the bottom of the housing by means of a fixing member, for example a screw, which is engaged in a longitudinal slide and is accessible from the outside, for its loosening and its drive, which makes it possible to immobilize the corresponding socket in separate positions corresponding to different lengths of lamps.
  • a fixing member for example a screw
  • the guide slide of the fixing member of the support of each movable sleeve consists of an elongated opening provided in the base of the chassis and / or the bottom of the housing, and the 'fixing member consists of a screw passing through this opening and whose head is accessible from the outside.
  • the present projector has a housing 1 open on one of its large faces and which is equipped with a lighting lamp 2a of tubular shape comprising a contact pad 3 at each end.
  • the housing 1 is pivotally mounted between the two branches of a stirrup 4 intended to serve as its support.
  • this case could just as easily be without such a stirrup, especially if it is a lighting projector intended to be built into a false ceiling.
  • a trough-shaped reflector 5 which surrounds the location of the lamp 2a. At the ends, this reflector is completed by two reflective cheeks 6 arranged transversely in inclined positions.
  • the reflector thus formed is fixed to a chassis 7 fitted against the bottom 8 of the housing 1.
  • the base 9 of this chassis can consist of a metal strip fixed against the bottom 8 of the housing, and the ends of which are bent twice at right angle so that their end portion 10 constitutes a tab serving as a support for the bottom of the reflector 5.
  • two sockets 11 can be provided, which may be of the conventional type.
  • it is two pieces of insulating material forming a receiving housing 12 for the corresponding end of the lamp.
  • Inside this housing there is provided an electrical connection contact constituted by an elastic blade 13 carrying a contact pad and on which is fixed a supply conductor 14.
  • the two sockets 11 are not mounted in fixed and immutable positions on the chassis 7 or the housing 1. On the contrary, they are mounted so that their spacing can be modified to be able to adapt lamps of different types inside the appliance.
  • each socket 11 is fixed to one of the branches of a metal lug 15, the other branch 16 of which is disposed against the base 9 of the chassis 7.
  • Each of these lugs is slidably mounted against this base in the longitudinal direction by means of a screw 17 carried by this tab and the body of which is engaged through longitudinal slots 18 made in correspondence in the base 9 of the chassis 7 and in the bottom 8 of the housing, the head 19 of this screw being arranged outside.
  • each of these screws is easily accessible from the outside, which makes it possible to loosen the fixing by means of a screwdriver 20 or the like.
  • the external head 19 of each screw also constitutes a drive means for sliding the corresponding screw 17 in the longitudinal slots 18. This screw head can then be grasped with one hand or be driven in movement by means of a screwdriver 20. This makes it possible to modify the position of the two sockets 11 to vary their spacing, after which they can be immobilized in the new position chosen by tightening the screws 17.
  • the corresponding projector is designed to be able to be equipped with two types of tubular lamps 2a and 2b with metal iodides corresponding to respective powers of 70 and 150W. Consequently, at least one of the two superposed slots 18, for example that provided in the bottom 8 of the housing, has a length such that its ends determine either of the two positions which the corresponding screw 17 must occupy in either case. So when we decide to set up a bulb 2a of shorter length, it suffices to slide the two screws 17 towards each other to bring them to the end of their travel. By cons when it is planned to put in place a bulb 2b of greater length, it is necessary to slide the two screws 17 at the end of the race outwards.
  • each leg 15 can rotate on itself, its branch 16 has a boss 21 engaged in the slot 18 provided in the base 9 of the chassis 7. This therefore ensures the guidance of each leg 15 during its movement without risk of rotation of it on itself.
  • each end of the chassis 7 has a cutout 22 inside which the corresponding socket can slide when the position is changed. It should also be noted that the reflective cheeks 6 provided at the ends themselves have cutouts 23 wide enough to allow the passage of the ends of the two types of lamps that can be installed in the device.
  • this projector Thanks to the design of this projector, the manufacturer of this projector can make a single model for two different types of lamps. This therefore makes it possible to carry out larger quantities of manufacture and consequently to reduce the cost price, which is also an advantage for the user. With regard to this, there is also the advantage that a projector, initially acquired for a specific type of lamp, can be adapted to receive a different type of lamp.
  • the projector is arranged to receive two different types of lamps, however it could very well be able to receive three different types or even more.
  • the headlight according to the invention is not limited to the exemplary embodiments described above.
  • the screws 17 could be replaced by any other fixing member capable of ensuring both the fixing of the support of the corresponding socket and of serving as a means of driving the latter during its movement.
  • the bent tabs 15 serving to support the sockets 11 could be replaced by any other part capable of serving as a mobile support for one or the other of these sockets. As for the latter, they could be of a different type from that shown in the drawings, depending on the models of lamps to be received.
  • the projector comprises a box enclosing its chassis 7. But in a simplified embodiment this box could possibly be deleted. Conversely, in another possible embodiment, the chassis 7 could be omitted, the housing 1 then serving directly as a support for the two mobile sockets 11. In addition, in another variant, only one of the two sockets 11 would be mobile, the other being fixed, which would be sufficient to allow the fitting of lamps of different lengths.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Projection Apparatus (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

La présente invention concerne les projecteurs d'éclairage équipés d'une lampe de forme tubulaire pourvue de plots de contact à chaque extrêmité, par exemple une lampe à iodures métalliques, ou une lampe halogène ou bien encore une lampe tubulaire à filament.The present invention relates to lighting projectors equipped with a tubular lamp provided with contact pads at each end, for example a metal halide lamp, or a halogen lamp or even a tubular filament lamp.

Pour recevoir une telle lampe, les projecteurs de ce genre comportent deux douilles qui sont disposées de part et d'autre de l'emplacement prévu pour celle-ci et qui sont aptes à recevoir les plots de contact d'une telle lampe, le terme "douille" désignant d'une façon générale toute pièce présentant un logement de réception à l'intérieur duquel est prévu un contact électrique d'alimentation apte à s'appliquer sur le plot de contact d'extrêmité de la lampe correspondante. Les douilles ainsi prévues sont fixées sur le châssis du projecteur ou éventuellement sur le boîtier de celui-ci. L'écartement existant entre les deux douilles d'un même projecteur doit correspondre à la longueur du type de lampe qui est prévu pour équiper celui-ci. Or, il existe plusieurs types de lampes du type en cause qui présentent des puissances différentes et comportent une longueur plus ou moins importante. Ainsi les lampes à iodures métalliques ayant une puissance de 70W présentent une longueur d'environ 120mm, alors que les lampes similaires ayant une puissance de 150W ont une longueur d'environ 137mm.To receive such a lamp, projectors of this kind comprise two sockets which are arranged on either side of the space provided for it and which are capable of receiving the contact pads of such a lamp, the term "socket" generally designates any part having a receiving housing inside which is provided an electrical supply contact capable of being applied to the end contact pad of the corresponding lamp. The sockets thus provided are fixed to the frame of the projector or possibly to the housing thereof. The distance between the two lampholders of the same projector must correspond to the length of the type of lamp which is provided to equip it. However, there are several types of lamps of the type in question which have different powers and have a greater or lesser length. Thus the metal halide lamps having a power of 70W have a length of approximately 120mm, while similar lamps having a power of 150W have a length of approximately 137mm.

En conséquence les fabricants de projecteurs de ce genre doivent réaliser autant de modèles différents d'appareils qu'il y a de types distincts de lampes. Comme on le comprend aisément, ceci grève le prix de revient de ces appareils d'autant plus qu'à tous les stades de la commercialisation il est nécessaire de disposer d'autant de stocks de modèles différents.Consequently, the manufacturers of projectors of this kind must make as many different models of apparatus as there are distinct types of lamps. As is easily understood, this strikes the cost price of these devices especially since at all stages of marketing it is necessary to have as many stocks of different models.

Pour les utilisateurs, cette situation présente également des inconvénients. En effet le propriétaire d'un appareil équipé d'une lampe d'un type déterminé ne peut pas augmenter la puissance d'éclairage en y plaçant une lampe de puissance plus élevée. Il est donc dans l'obligation de remplacer l'appareil en service par un autre appareil pouvant recevoir une lampe plus puissante.For users, this situation also has drawbacks. Indeed, the owner of an appliance equipped with a lamp of a determined type cannot increase the lighting power by placing a lamp of higher power there. It is therefore obliged to replace the device in service with another device capable of receiving a more powerful lamp.

Pour des appareils équipés de lampes de type tout à fait différent, le brevet FR 1.162.357 décrit un dispositif permettant d'adapter des lampes de longueurs différentes. Cependant ce dispositif est spécialement conçu pour des lampes tubulaires dont les culots d'extrémité sont destinés à être enclenchés dans des pinces de contact en forme générale de V. Cependant, le dispositif n'est pas susceptible d'être utilisé dans le cas considéré.For devices fitted with entirely different type of lamps, patent FR 1,162,357 describes a device making it possible to adapt lamps of different lengths. However, this device is specially designed for tubular lamps whose end caps are intended to be engaged in contact clamps in the general shape of V. However, the device is not likely to be used in the case considered.

Quant au brevet US 4.288.846, il décrit un appareil du même type général que le projecteur d'éclairage selon l'invention. Mais dans cet appareil, il est simplement prévu une possibilité de déplacement longitudinal des éléments de réception des extrémités d'une lampe tubulaire pour faciliter le montage d'une telle lampe ayant une longueur bien déterminée et assurer un excellent contact électrique. Mais l'agencement prévu ne permet en aucune façon d'adapter les lampes de longueurs différentes.As for US patent 4,288,846, it describes an apparatus of the same general type as the lighting projector according to the invention. But in this device, there is simply provided a possibility of longitudinal displacement of the elements for receiving the ends of a tubular lamp to facilitate the mounting of such a lamp having a well-defined length and ensuring excellent electrical contact. However, the arrangement provided in no way allows lamps of different lengths to be adapted.

C'est pourquoi la présente invention a pour objet un projecteur d'éclairage du type en cause qui est conçu de façon à pouvoir être équipé indifféremment avec des lampes tubulaires de deux types distincts, ou éventuellement plus, et ce grâce à des moyens de montage et de réglage qui sont particulièrement simples.This is why the subject of the present invention is a lighting projector of the type in question which is designed so as to be able to be equipped indifferently with tubular lamps of two distinct types, or possibly more, and this thanks to mounting means. and adjustment which are particularly simple.

A cet effet, l'invention a pour objet un projecteur d'éclairage destiné à être équipé d'une lampe de forme tubulaire pourvue d'un plot de contact à chaque extrémité, le boîtier et/ou le châssis de ce projecteur comportant deux douilles disposées de part et d'autre de l'emplacement d'une telle lampe pour recevoir les plots de contact de celle-ci, caractérisé en ce que l'une au moins de ces douilles est fixée contre l'embase du châssis du projecteur et/ou contre le fond du boîtier de celui-ci, par l'intermédiaire d'une patte coudée dont une branche est solidaire de la douille correspondante cependant que son autre branche est fixée contre l'embase du châssis du projecteur et/ou contre le fond du boîtier au moyen d'un organe de fixation, par exemple une vis, qui est engagée dans une glissière longitudinale et est accessible de l'extérieur, pour son desserrage et son entraînement, ce qui permet d'immobiliser la douille correspondante dans des positions distinctes correspondant à des longueurs différentes de lampes.To this end, the invention relates to a lighting projector intended to be equipped with a tubular lamp provided with a contact pad at each end, the housing and / or the chassis of this projector comprising two sockets arranged on either side of the location of such a lamp to receive the contact pads thereof, characterized in that at least one of these sockets is fixed against the base of the projector chassis and / or against the bottom of the housing thereof, by means of a bent tab, one branch of which is integral with the corresponding socket, however its other branch is fixed against the base of the projector chassis and / or against the bottom of the housing by means of a fixing member, for example a screw, which is engaged in a longitudinal slide and is accessible from the outside, for its loosening and its drive, which makes it possible to immobilize the corresponding socket in separate positions corresponding to different lengths of lamps.

Ainsi il est très facile d'adapter cet appareil pour y placer une lampe de type différent de celle précédemment en place. En effet il suffit de desserrer l'organe de fixation de la ou des douilles mobiles pour pouvoir modifier l'écartement entre celles-ci en fonction du type de lampe à recevoir.So it is very easy to adapt this device to place a lamp of a different type from that previously in place. In fact, it suffices to loosen the fixing member of the movable socket (s) in order to be able to modify the spacing between them according to the type of lamp to be received.

Dans une forme avantageuse de réalisation du présent appareil, la glissière de guidage de l'organe de fixation du support de chaque douille mobile consiste en une ouverture de forme allongée prévue dans l'embase du châssis et/ou le fond du boîtier, et l'organe de fixation consiste en une vis traversant cette ouverture et dont la tête est accessible à partir de l'extérieur.In an advantageous embodiment of the present device, the guide slide of the fixing member of the support of each movable sleeve consists of an elongated opening provided in the base of the chassis and / or the bottom of the housing, and the 'fixing member consists of a screw passing through this opening and whose head is accessible from the outside.

Cependant les diverses particularités et avantages du projecteur d'éclairage selon l'invention apparaîtront au cours de la description suivante d'un exemple de réalisation de celui-ci. Cette description est donnée en référence aux dessins annexés à simple titre indicatif et sur lesquels :

  • la figure 1 est une vue en perspective du projecteur d'éclairage selon l'invention,
  • la figure 2 est une vue en coupe axiale de ce projecteur,
  • la figure 3 est une vue en perspective du détail du montage de l'une des deux douilles mobiles prévues dans ce projecteur.
However, the various features and advantages of the lighting projector according to the invention will become apparent during the following description of an exemplary embodiment thereof. This description is given with reference to the accompanying drawings for information only and in which:
  • FIG. 1 is a perspective view of the lighting projector according to the invention,
  • FIG. 2 is a view in axial section of this projector,
  • Figure 3 is a perspective view of the detail of the mounting of one of the two movable sockets provided in this projector.

Comme représenté sur les figures 1 et 2, le présent projecteur comporte un boîtier 1 ouvert sur l'une de ses grandes faces et qui est équipé d'une lampe d'éclairage 2a de forme tubulaire comportant un plot de contact 3 à chaque extrêmité. Dans l'exemple représenté, le boîtier 1 est monté pivotant entre les deux branches d'un étrier 4 destiné à lui servir de support. Cependant ce boîtier pourrait tout aussi bien être dépourvu d'un tel étrier, notamment s'il s'agit d'un projecteur d'éclairage destiné à être encastré dans un faux plafond.As shown in Figures 1 and 2, the present projector has a housing 1 open on one of its large faces and which is equipped with a lighting lamp 2a of tubular shape comprising a contact pad 3 at each end. In the example shown, the housing 1 is pivotally mounted between the two branches of a stirrup 4 intended to serve as its support. However, this case could just as easily be without such a stirrup, especially if it is a lighting projector intended to be built into a false ceiling.

A l'intérieur de ce boîtier 1, il est prévu un réflecteur 5 en forme d'auge qui entoure l'emplacement de la lampe 2a. Aux extrêmités, ce réflecteur est complété par deux joues réflectrices 6 disposées transversalement dans des positions inclinées. Le réflecteur ainsi constitué est fixé sur un châssis 7 rapporté contre le fond 8 du boîtier 1. L'embase 9 de ce châssis peut consister en une lame métallique fixée contre le fond 8 du boîtier, et dont les extrêmités sont coudées à deux reprises à angle droit de façon que leur partie terminale 10 constitue une patte servant de support au fond du réflecteur 5.Inside this housing 1, there is provided a trough-shaped reflector 5 which surrounds the location of the lamp 2a. At the ends, this reflector is completed by two reflective cheeks 6 arranged transversely in inclined positions. The reflector thus formed is fixed to a chassis 7 fitted against the bottom 8 of the housing 1. The base 9 of this chassis can consist of a metal strip fixed against the bottom 8 of the housing, and the ends of which are bent twice at right angle so that their end portion 10 constitutes a tab serving as a support for the bottom of the reflector 5.

Pour recevoir les plots de contact 3 des extrêmités de la lampe 2a, il est prévu deux douilles 11 pouvant être de type classique. En l'occurrence dans l'exemple représenté il s'agit de deux pièces en matière isolante formant un logement de réception 12 pour l'extrêmité correspondante de la lampe. A l'intérieur de ce logement il est prévu un contact électrique de liaison constitué par une lame élastique 13 portant un plot de contact et sur laquelle est fixé un conducteur 14 d'alimentation.To receive the contact pads 3 from the ends of the lamp 2a, two sockets 11 can be provided, which may be of the conventional type. In this case in the example shown it is two pieces of insulating material forming a receiving housing 12 for the corresponding end of the lamp. Inside this housing there is provided an electrical connection contact constituted by an elastic blade 13 carrying a contact pad and on which is fixed a supply conductor 14.

Conformément à la caractéristique essentielle de l'objet de l'invention les deux douilles 11 ne sont pas montées dans des positions fixes et immuables sur le châssis 7 ou le boîtier 1. Bien au contraire elles sont montées de façon que leur écartement puisse être modifié pour pouvoir adapter des lampes de type différent à l'intérieur de l'appareil.In accordance with the essential characteristic of the object of the invention, the two sockets 11 are not mounted in fixed and immutable positions on the chassis 7 or the housing 1. On the contrary, they are mounted so that their spacing can be modified to be able to adapt lamps of different types inside the appliance.

A cet effet, chaque douille 11 est fixée sur une des branches d'une patte métallique 15 dont l'autre branche 16 est disposée contre l'embase 9 du châssis 7. Chacune de ces pattes est montée coulissante contre cette embase dans le sens longitudinal par l'intermédiaire d'une vis 17 portée par cette patte et dont le corps est engagé à travers des fentes longitudinales 18 pratiquées en correspondance dans l'embase 9 du châssis 7 et dans le fond 8 du boîtier, la tête 19 de cette vis étant disposée à l'extérieur.To this end, each socket 11 is fixed to one of the branches of a metal lug 15, the other branch 16 of which is disposed against the base 9 of the chassis 7. Each of these lugs is slidably mounted against this base in the longitudinal direction by means of a screw 17 carried by this tab and the body of which is engaged through longitudinal slots 18 made in correspondence in the base 9 of the chassis 7 and in the bottom 8 of the housing, the head 19 of this screw being arranged outside.

Ainsi la tête de chacune de ces vis est facilement accessible de l'extérieur, ce qui permet de desserrer la fixation au moyen d'un tournevis 20 ou similaire. Cependant la tête externe 19 de chaque vis constitue également un moyen d'entraînement pour faire coulisser la vis correspondante 17 dans les fentes longitudinales 18. Cette tête de vis peut alors être saisie avec une main ou être entraînée en mouvement au moyen d'un tournevis 20. Ceci permet de modifier la position des deux douilles 11 pour faire varier leur écartement, après quoi elles peuvent être immobilisées dans la nouvelle position choisie en resserrant les vis 17.Thus the head of each of these screws is easily accessible from the outside, which makes it possible to loosen the fixing by means of a screwdriver 20 or the like. However, the external head 19 of each screw also constitutes a drive means for sliding the corresponding screw 17 in the longitudinal slots 18. This screw head can then be grasped with one hand or be driven in movement by means of a screwdriver 20. This makes it possible to modify the position of the two sockets 11 to vary their spacing, after which they can be immobilized in the new position chosen by tightening the screws 17.

Dans l'exemple représenté, le projecteur correspondant est prévu pour pouvoir être équipé indifféremment de deux types de lampes tubulaires 2a et 2b à iodures métalliques correspondant à des puissances respectives de 70 et 150W. En conséquence l'une au moins des deux fentes superposées 18, par exemple celle prévue dans le fond 8 du boîtier, comporte une longueur telle que ses extrêmités déterminent l'une et l'autre des deux positions que doit occuper la vis correspondante 17 dans l'un et l'autre cas. Ainsi lorsque l'on décide de mettre en place une ampoule 2a de plus petite longueur, il suffit de faire coulisser les deux vis 17 l'une vers l'autre pour les amener en bout de course. Par contre quant il est prévu de mettre en place une ampoule 2b de plus grande longueur, il convient de faire coulisser les deux vis 17 en fin de course vers l'extérieur.In the example shown, the corresponding projector is designed to be able to be equipped with two types of tubular lamps 2a and 2b with metal iodides corresponding to respective powers of 70 and 150W. Consequently, at least one of the two superposed slots 18, for example that provided in the bottom 8 of the housing, has a length such that its ends determine either of the two positions which the corresponding screw 17 must occupy in either case. So when we decide to set up a bulb 2a of shorter length, it suffices to slide the two screws 17 towards each other to bring them to the end of their travel. By cons when it is planned to put in place a bulb 2b of greater length, it is necessary to slide the two screws 17 at the end of the race outwards.

Pour éviter que chaque patte 15 puisse tourner sur elle-même, sa branche 16 comporte un bossage 21 engagé dans la fente 18 prévue dans l'embase 9 du châssis 7. Ceci assure donc le guidage de chaque patte 15 lors de son déplacement sans risque de rotation de celle-ci sur elle-même.To avoid that each leg 15 can rotate on itself, its branch 16 has a boss 21 engaged in the slot 18 provided in the base 9 of the chassis 7. This therefore ensures the guidance of each leg 15 during its movement without risk of rotation of it on itself.

Pour permettre le débattement des douilles 11, chaque extrêmité du châssis 7 comporte une découpe 22 à l'intérieur de laquelle peut coulisser la douille correspondante lors de la modification de sa position. Il convient également de noter que les joues réflectrices 6 prévues aux extrêmités comportent elles-mêmes des découpes 23 suffisamment larges pour pouvoir permettre le passage des extrêmités des deux types de lampes pouvant être mises en place dans l'appareil.To allow the displacement of the sockets 11, each end of the chassis 7 has a cutout 22 inside which the corresponding socket can slide when the position is changed. It should also be noted that the reflective cheeks 6 provided at the ends themselves have cutouts 23 wide enough to allow the passage of the ends of the two types of lamps that can be installed in the device.

Grâce à la conception du présent projecteur, le fabricant de celui-ci peut réaliser un modèle unique pour deux types différents de lampes. Ceci permet donc de réaliser des quantités plus importantes de fabrication et par suite de réduire le prix de revient, ce qui est un avantage également pour l'utilisateur. En ce qui concerne celui-ci, il existe en plus l'avantage qu'un projecteur, initialement acquis pour un type déterminé de lampe, peut être adapté pour recevoir un type différent de lampe.Thanks to the design of this projector, the manufacturer of this projector can make a single model for two different types of lamps. This therefore makes it possible to carry out larger quantities of manufacture and consequently to reduce the cost price, which is also an advantage for the user. With regard to this, there is also the advantage that a projector, initially acquired for a specific type of lamp, can be adapted to receive a different type of lamp.

Dans l'exemple décrit ci-dessus le projecteur est agencé pour recevoir deux types différents de lampes, cependant il pourrait fort bien être en mesure de recevoir trois types différents ou même plus. Dans un tel cas, il pourrait être prévu, au dos du boîtier 1, des moyens de repérage permettant de placer la tête 19 de chaque vis 17 dans la position voulue pour un type déterminé de lampe. Du reste, le projecteur selon l'invention n'est pas limité aux seuls exemples de réalisation décrits ci-dessus. Ainsi les vis 17 pourraient être remplacées par tout autre organe de fixation susceptible d'assurer à la fois la fixation du support de la douille correspondante et de servir de moyen d'entraînement de celle-ci lors de son déplacement. Par ailleurs, les pattes coudées 15 servant de support aux douilles 11 pourraient être remplacées par toute autre pièce capable de servir de support mobile pour l'une ou l'autre de ces douilles. Quant à ces dernières, elles pourraient être de type différent de celui représenté sur les dessins, et ce en fonction des modèles de lampes à recevoir.In the example described above the projector is arranged to receive two different types of lamps, however it could very well be able to receive three different types or even more. In such a case, there could be provided, on the back of the housing 1, locating means making it possible to place the head 19 of each screw 17 in the desired position for a specific type of lamp. Furthermore, the headlight according to the invention is not limited to the exemplary embodiments described above. Thus the screws 17 could be replaced by any other fixing member capable of ensuring both the fixing of the support of the corresponding socket and of serving as a means of driving the latter during its movement. Furthermore, the bent tabs 15 serving to support the sockets 11 could be replaced by any other part capable of serving as a mobile support for one or the other of these sockets. As for the latter, they could be of a different type from that shown in the drawings, depending on the models of lamps to be received.

Enfin, il convient de noter que dans l'exemple correspondant, le projecteur comporte un boîtier enfermant son châssis 7. Mais dans une forme de réalisation simplifiée ce boîltier pourrait éventuellement être supprimé. Inversement, dans une autre forme possible de réalisation le châssis 7 pourrait être supprimé, le boîtier 1 servant alors directement de support aux deux douilles mobiles 11. De plus, dans une autre variante une seule des deux douilles 11 serait mobile, l'autre étant fixe, ce qui serait suffisant pour permettre la mise en place de lampes de longueurs différentes.Finally, it should be noted that in the corresponding example, the projector comprises a box enclosing its chassis 7. But in a simplified embodiment this box could possibly be deleted. Conversely, in another possible embodiment, the chassis 7 could be omitted, the housing 1 then serving directly as a support for the two mobile sockets 11. In addition, in another variant, only one of the two sockets 11 would be mobile, the other being fixed, which would be sufficient to allow the fitting of lamps of different lengths.

Claims (2)

  1. Light projector designed to be equipped with a tubular bulb provided with a contact pin at each end, the housing and/or body of said projector comprising two sockets disposed on both sides of such a bulb to accommodate the contact pins thereof, characterised in that at least one of these sockets (11) is attached to the base (9) of the body (7) of the projector and/or to the bottom (8) of the housing (1) thereof by means of an angled bracket (15) one arm of which is attached and fixed to the corresponding socket (11) and the other arm of which is fixed to the base (9) of the body (7) of the projector and/or to the bottom (8) of the housing (1) by means of a fixing element, for example a screw (17) engaged in a longitudinal channel and accessible from the outside to be loosened and tightened, which makes it possible to fix the corresponding socket (11) in different positions corresponding to the different lengths of the bulbs.
  2. Light projector according to claim 1, characterised in that the guide channel of the fixing element of the support bracket (15) of each moving socket (11) comprises an opening (18) of elongated form provided in the base (9) of the body (7) and/or the bottom of the housing (1), and the fixing element comprises a screw (17) passing through this opening, the head (19) of which is accessible from the exterior.
EP19910401912 1990-07-09 1991-07-09 Light projector Expired - Lifetime EP0466584B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9008672A FR2664364B1 (en) 1990-07-09 1990-07-09 LIGHTING PROJECTOR WHICH CAN BE EQUIPPED WITH TUBULAR LAMPS OF DIFFERENT LENGTHS.
FR9008672 1990-07-09

Publications (2)

Publication Number Publication Date
EP0466584A1 EP0466584A1 (en) 1992-01-15
EP0466584B1 true EP0466584B1 (en) 1995-10-25

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Application Number Title Priority Date Filing Date
EP19910401912 Expired - Lifetime EP0466584B1 (en) 1990-07-09 1991-07-09 Light projector

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EP (1) EP0466584B1 (en)
DE (1) DE69114066T2 (en)
ES (1) ES2081449T3 (en)
FR (1) FR2664364B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203840C1 (en) * 1992-02-10 1993-06-24 Heraeus Instruments Gmbh, 6450 Hanau, De
CN105650608A (en) * 2016-01-26 2016-06-08 张立 Adjusting mechanism of illumination lamp tube in storehouse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277648A (en) * 1938-12-16 1942-03-24 Garden City Plating & Mfg Co I Lamp fixture and socket therefor
FR1162357A (en) * 1956-11-23 1958-09-11 Wall lamp of variable length for tubular lamp
US4288846A (en) * 1979-12-17 1981-09-08 General Electric Company Floodlight

Also Published As

Publication number Publication date
FR2664364B1 (en) 1994-06-10
DE69114066D1 (en) 1995-11-30
DE69114066T2 (en) 1996-07-18
EP0466584A1 (en) 1992-01-15
FR2664364A1 (en) 1992-01-10
ES2081449T3 (en) 1996-03-16

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