EP2860445B1 - Covering device for a spot-type lighting fixture - Google Patents

Covering device for a spot-type lighting fixture Download PDF

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Publication number
EP2860445B1
EP2860445B1 EP14185811.8A EP14185811A EP2860445B1 EP 2860445 B1 EP2860445 B1 EP 2860445B1 EP 14185811 A EP14185811 A EP 14185811A EP 2860445 B1 EP2860445 B1 EP 2860445B1
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EP
European Patent Office
Prior art keywords
covering device
arms
arm
spot
branches
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EP14185811.8A
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German (de)
French (fr)
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EP2860445A1 (en
Inventor
Romain Herveaux
Jean Ceytte
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Moulages Plastiques du Midi MPM SAS
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Moulages Plastiques du Midi MPM SAS
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Publication of EP2860445A1 publication Critical patent/EP2860445A1/en
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    • 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
    • F21V25/12—Flameproof or explosion-proof arrangements
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/02—Cages
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/15—Thermal insulation

Definitions

  • the present invention relates to a covering device for a recessed spot type luminaire.
  • the field of the present invention is that of accessories for electrical equipment and / or building. Indeed, during the construction of a home or tertiary premises, including office, or industrial, it becomes usual to embed light sources (commonly called spots) in a wall, usually a ceiling, for reasons essentially aesthetic. It is then necessary to provide in the wall the power supply of the light source.
  • light sources commonly called spots
  • an insulating material which may for example be an insulation said unwound such as a glass wool or a rock wool or a so-called blown insulation such as wool or cellulose wadding. It is advisable to reserve a place for the installation of the spot and its connection to the back of the wall and prevent direct contact of certain elements with the insulation to avoid any risk of fire.
  • the document FR-2,977,300 reveals a styling device for a lamp to be built into a ceiling.
  • This device comprises an upper plate from which, on the one hand, branches of a first type provided with stop plates to cooperate with a flange of a mounting hole and, on the other hand, less a branch of a second type of design distinct from that of the branches of the first type, flexible and arranged in the space between two branches of the first type.
  • This device makes it possible to create a bell at the rear of a wall defining a protected space inside which can take place a lamp.
  • the document FR-2 977 925 reveals another styling device for a lamp to be built into a ceiling.
  • This device is in several parts that can form a kit.
  • a kit comprises for example a support element and branches which can be fixed on the support element in various positions.
  • This structure makes it possible, on the one hand, to have a styling device of variable size and thus adaptable to the recessed lamp, and, on the other hand, a device that is not bulky before mounting the branches on their support element.
  • styling devices are independent of the lamp (or similar) they come to style. Thus, it could happen that if a lamp is put in place with its styling device before the insertion of the insulating material, the styling device tilts and / or moves and then no longer ensures optimum protection of the lamp. it is intended to protect.
  • the present invention therefore aims to provide a device for providing reliable protection of a fixture, spot type (or the like) to be embedded in a wall.
  • the device according to the invention will be easy and / or quick to implement. It will preferably be a compact device, at least before its implementation. This device will be advantageously easy to manufacture and / or cheap.
  • the present invention proposes a covering device for a recessed spot, or the like, with fixing springs, said device comprising a central upper part and branches extending from the central upper part, at least two branches being arranged diametrically opposite to the central upper part.
  • said at least two branches have at their end opposite to the upper central portion at least one transverse slot adapted to receive a spring of a spot and make the covering device integral with the spot, or the like.
  • the structure proposed by the present invention then allows to introduce springs that are almost always provided on a spot to be embedded in the transverse slots of two branches of the covering device.
  • the covering device is made integral with the spot and correct positioning of the device with respect to the spot can be guaranteed and thus prevent any contact of the spot with an insulator.
  • the covering device then makes it possible to safely perform the covering, or styling, of a spot-type recessed luminaire.
  • each branch is articulated with respect to the central upper part by an elastic transverse hinge tending to spread the branches apart from each other.
  • the branches can first be positioned substantially in the same plane as the upper central part, thus facilitating the manufacture and handling for the conditioning of the covering device.
  • the fact of having articulated branches slightly preloaded to move away from each other makes it possible to use the same covering device for spots of various diameters.
  • each branch has a distal portion with a global shape of circular cylinder portion so as to be able to substantially match the shape of the corresponding hole.
  • each distal branch portion is for example a portion of a cylinder with a diameter of between 60 and 90 mm. These dimensions correspond to the most frequently used dimensions for making a recess hole of a luminaire in a ceiling.
  • the covering device In its second position and in its third position, as well as in intermediate positions between them, the covering device forms a sealed enclosure around a luminaire that would take place between the branches, the tightness achieved being relative to the insulation materials used most commonly for the insulation of ceilings.
  • the branches in the first position the branches form for example a cone, and this position corresponds to an unstressed position of the branches.
  • the circle formed by the distal ends is between 80 and 95 mm. This circle is then adapted to the larger diameter holes that are usually used to house a spot, or more generally a fixture, in a ceiling.
  • the branches can for example overlap by passing on a neighboring branch and under another branch nearby, like fish scales.
  • the covering device can adapt to several opening diameters made in a ceiling to receive a luminaire.
  • each branch comprising a transverse light advantageously comprises at least two transverse slots.
  • a covering device can also be adapted to spots associated with a connection box provided with a holding tab when the upper central part carries for example, on the one hand, a holding element pivotally mounted on the upper central part and, secondly, locking means of the holding member in a position for maintaining a substantially flat tab against the upper central portion.
  • a covering device according to the invention comprises six or eight similar branches regularly distributed around the central upper part.
  • a covering device according to the invention can be made by injection of a thermoplastic synthetic material, for example a fire-rated thermoplastic.
  • each branch is connected to the upper central part by a hinge obtained by thinning material and at rest the angle formed by each branch and the central upper part is between 160 and 200 °.
  • the angle formed at rest by each branch and the central upper part is for example between 100 and 135 °
  • the present invention also relates to an assembly formed by a covering device and a light spot, characterized in that the covering device is a covering device as described above, in that the spot comprises fixing springs, and in that at least one spring is introduced into a transverse light of the covering device.
  • the spot and the covering device are secured by the cooperation of at least one spring of the spot with a transverse light of a branch of the covering device.
  • a covering device is in the form of a molded part made of synthetic material, for example a non-flammable material such as a thermoplastic classified fire.
  • this is a monobloc device which is represented in its "rest” position corresponding to its mold outlet position after cooling (except figures 7 and 8 ).
  • the covering device is intended to ensure reliable recovery of a recessed luminaire in a wall.
  • it has a central part, subsequently called the upper central part 2 (intended to be fitted above the luminaire when the latter is embedded in a ceiling or false ceiling) from which branches 4 extend ( intended to surround the recessed luminaire).
  • branches 4 extend radially from the upper central portion 2.
  • the branches 4 are preferably uniformly distributed around the upper central portion 2. It is necessary to provide at least two branches 4 disposed of diametrically opposite with respect to the upper central part 2.
  • the upper / lower orientation is chosen to correspond to a covering device positioned in a ceiling.
  • the branches 4 in the position shown in the figures are substantially coplanar with the upper central portion 2, these branches 4 are folded "downwards" to be positioned around a recessed luminaire.
  • the present description is subsequently made with reference to a spot, but the present invention can be adapted to other recessed luminaires, for example of rectangular shape (it is then sufficient to adapt the shape of the upper central part 2 and possibly the number of branches 4).
  • the figure 1 illustrates a first embodiment of the invention wherein the upper central portion 2 has a substantially planar hexagon shape.
  • Each branch 4 is articulated by a hinge 6 to one side of the hexagon.
  • the hinge 6 is obtained directly during molding by providing a thinning material at the junction between the upper central portion 2 and the corresponding branch 4.
  • each branch 4 is in the form of a blade.
  • the branch 4 On the side of the upper central portion 2, the branch 4 has a substantially rectilinear proximal transverse edge for connecting to one side of the hexagon formed by the upper central portion 2 at the corresponding hinge 6.
  • Each branch 4 also has a distal portion 8 curved longitudinally thus forming a cylinder portion.
  • a proximal portion 10 then forms a transition zone in which the curvature of the blade increases from a zero curvature at the proximal end to the curvature of the distal portion 8.
  • the curvature of the distal portion 8 preferably corresponds to at a radius of curvature between 30 and 45 mm, that is to say that the distal portion forms a portion of a cylinder with a diameter of between 60 and 90 mm. These dimensions correspond to the diameters of the holes usually made in a ceiling for embedding a light spot or the like.
  • each lumen 12 is disposed near the distal end of the corresponding branch 4, at a distance of about a few millimeters to a few centimeters (less than 5 cm for example) from the distal end of the branch 4.
  • the lights 12 extend over almost the entire width of the corresponding branch 4 without opening into a longitudinal edge of the branch 4.
  • Each light 12 has in the embodiment shown a shape of oblong hole with a width of a few millimeters and length adapted to the width of the branch 4.
  • the preferred embodiment illustrated on the Figures 2 to 5 has eight branches. 4.
  • the references used on the figure 1 are repeated here to designate similar elements.
  • the upper central portion 2 is here in the overall form of an octagon with each side carrying a branch 4.
  • a recess 14 at each vertex of the octagon.
  • These recesses 14 are intended to allow the passage of a power supply cable for a spot, or the like, to take place between the branches 4 of the covering device, as shown in FIG. figure 5 and explained later in the description.
  • These recesses 14 facilitate the passage of an electric cable which could however pass between the branches 4 and are therefore optional.
  • the upper central portion 2 has on its upper face a locking member 16 and corresponding resilient locking means.
  • the lock member 16 extends at rest substantially perpendicular to the upper central portion 2 on which it is hinged.
  • the articulation is obtained here by a thinning of material.
  • the stirrup has two branches and a base. The ends of the branches opposite the base are articulated on the upper central portion 2 while the base is in the form of a cross member 18 which can cooperate with the elastic locking means.
  • the resilient locking means are in the form of two clips 20 arranged facing each other and extending upwards from the upper central portion 2.
  • Each clip 20 is in the form of a harpoon with a vertical rod carrying a hook.
  • the hooks of the two clips 20 are arranged facing each other.
  • the clips 20 are positioned so that when the locking stirrup 16 pivots towards them, the cross member 18 is housed between the clips 20 by moving apart from each other when it passes at the level of the part. hook clips 20. Once this hook portion exceeded, the cross 18 is trapped and the locking bracket 16 is then held in the folded position. In this latter position, the locking yoke then extends substantially parallel to the upper central portion 2. It can be noted here that a single clip 20 would also make it possible to lock the locking yoke 16 in its position. closed.
  • the shape of the branches 4 of the recovery device Figures 2 to 5 is similar to that of the branches of the figure 1 . Their size is adapted to the fact that there are six branches on one side and eight on the other. When the branches 4 all pivot from their rest position illustrated on the Figures 1 to 5 by about 90 °, the distal portions 8 of the branches 4 then form a cylinder with possibly interstices of the order of a millimeter or a few millimeters between the branches, as shown in FIG. figure 7 .
  • each leg 4 has a distal edge opposite the corresponding hinge 6 and side edges extending from the distal edge to the hinge 6.
  • the branches 4 are juxtaposed when their distal ends are arranged in an aperture with a diameter of 90 mm (corresponding to the maximum aperture used for the most common spots) as illustrated in FIG. figure 8 .
  • the distal ends of the lateral edges are covered very slightly-for example on 1 to 2 mm-, a lateral edge of a branch 4 being "under” the corresponding lateral edge of a neighboring branch 4 while the other edge Lateral of the same branch 4 is then "on" the corresponding lateral edge 4 of another branch 4 neighbor.
  • the shape of the branches 4, and therefore of their lateral edges, is such that in the position illustrated on the figure 8 , the gap between two adjacent side edges is reduced, for example remains less than 2 or 3 mm.
  • the neighboring lateral edges are preferably locally in contact with each other. In this way, a good seal is achieved.
  • this covering device When this covering device is used to cover a spot of smaller size, for example 60 mm in diameter, then the branches 4 are tightened and overlap with a greater overlap (of the order of 12 to 14 mm) .
  • the distal ends of the branches 4 thus come to overlap like fish scales or as tiles. This position is not illustrated in the accompanying drawing but is easily deduced from the figure 8 .
  • the figure 9 illustrates the recovery device of the figure 8 in its "rest" position, corresponding to its output form.
  • the branches 4 are here separated and form a cone, for example with a half-angle at the apex between 10 and 45 ° (on the Figures 2 to 5 this angle would be of the order of 90 °.
  • This conical shape facilitates the positioning of the tabs when the covering device is used to cap and secure a spot, or other fixture, as explained below.
  • branches 4 on the figure 1 show two lights 12 while the branches 4 of the Figures 2 to 5 and 8, 9 have three lights 12.
  • the figure 6 illustrates a context in which a recovery device as described above can be implemented.
  • This is to embed a spot 21 in a ceiling 22 (which is assumed horizontal) formed for example suspended gypsum board.
  • a hole 24, generally of a diameter of between 60 and 90 mm, is made using a hole saw.
  • the spot 21 is then electrically connected to power cables provided in the ceiling 22 and is embedded in the ceiling 22 at the corresponding hole 24.
  • Springs 26 are prestressed to house the spot 21 in its hole 24. Once the spot in place, the springs 26 hold it in position by resting on the upper face of the plasterboard in a manner known to those skilled in the art (and any handyman).
  • a covering device makes it possible to avoid any contact of the spotlight 21 when it is embedded in the ceiling 22 with an insulator such as for example glass wool or a blown insulation which would be found in the ceiling. This avoids any contact between said insulation is the electrical connection parts of the spot and it is possible to provide a ventilation of the spot at the rear to prevent overheating.
  • the covering device illustrated on the Figures 2 to 5 and 8, 9 is suitable for mounting spotlights equipped with a connection box, in particular a connection box having a metal tab.
  • a connection box in particular a connection box having a metal tab.
  • Such a spot and its connection box are known to those skilled in the art and are not shown in the accompanying drawing.
  • the recovery device ( figure 1 or Figures 2 to 5 ) is for example delivered in the deployed position shown on the Figures 1 to 5 to facilitate its manufacture and its handling especially during its packaging.
  • the conical shape of the devices makes them stackable, allowing here also to store them by gaining space.
  • the leg metal of the latter is attached to the upper central portion 2.
  • the connecting box is connected to the spot itself by an electric wire (not shown). This wire is housed in a recess 14 located between two branches 4 at their proximal ends.
  • the metal bracket of the connection box is then placed between the locking bracket 16 and the associated resilient locking means (clip (s) 20).
  • the locking stirrup 16 is then folded so that its cross member 18 snaps into the resilient locking means.
  • the connection box is then held on the covering device.
  • the tab carrying the spot connection box is positioned parallel to the upper central portion 2 so that this tab is found horizontally when the spot is embedded in a ceiling.
  • the branches 4 (six or eight, or more generally all the branches) are folded downwards so as to form with their distal portions 8 substantially a cylinder.
  • the springs 26 are then each introduced into a lumen 12.
  • the lumens 12 concerned are in branches 4 which are diametrically opposite with respect to the upper central portion 2.
  • the lumen 12 which receives the corresponding spring 26 is chosen. depending on the thickness of the ceiling 22 and / or the position of the springs 26 on the spot 21.
  • the presence of several lights 12 on each leg 4 allows to adjust the positioning of the covering device with respect to the spot 21 of course but also in relation to the ceiling 22.
  • the springs 26 are raised, while remaining here engaged in the slots 12, before introducing the assembly (spot and cover device with possibly a box of connection) through the hole 24. Once the ends of the springs 26 introduced into the ceiling, simply releasing them so that they relax and come ensure the maintenance of both the spot and cover in hole 24.
  • the figure 7 illustrates the lower part of a covering device and a recessed spot in the ceiling 22.
  • the distal ends of the branches 4 are at the thickness of the plasterboard in which the hole 24 is made. The branches 4 are thus maintained to prevent them from returning to their rest position.
  • the present invention allows a connection between the spot (or the like) and the covering device.
  • a single operation is sufficient here to mount the spot and its covering device.
  • an easy assembly a single operation
  • a reliable recovery of the spot thankss to the maintenance of the covering device by the springs of the spot, the covering device is integral with the spot).
  • a spot mounted with a covering device as described above can also easily be removed.
  • the recovery device does not discourage disassembly of the spot. Just pull the spot perpendicular to the ceiling (arrow 28 on the figure 7 ) to extract the assembly formed by the spot and its covering device.
  • the covering device according to the invention may as well be mounted in a false ceiling made of a soft material that in a false ceiling made of a hard material. As indicated above, it also adapts to various thicknesses of the material constituting the false ceiling.
  • the covering device according to the invention makes it possible to ensure a reliable covering of a recessed spot or the like by securing the spot and the covering device.
  • the latter is mounted captively on the spot. It can only be removed by removing the spot.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

La présente invention concerne un dispositif de recouvrement destiné à un luminaire encastré de type spot.The present invention relates to a covering device for a recessed spot type luminaire.

Le domaine de la présente invention est donc celui des accessoires d'appareillages électriques et/ou du bâtiment. En effet, lors de la construction d'une habitation ou de locaux tertiaires, notamment bureau, ou industriels, il devient habituel d'encastrer des sources lumineuses (appelées généralement spots) dans une paroi, le plus souvent un plafond, pour des raisons essentiellement esthétiques. Il convient alors de prévoir dans la paroi l'alimentation électrique de la source lumineuse.The field of the present invention is that of accessories for electrical equipment and / or building. Indeed, during the construction of a home or tertiary premises, including office, or industrial, it becomes usual to embed light sources (commonly called spots) in a wall, usually a ceiling, for reasons essentially aesthetic. It is then necessary to provide in the wall the power supply of the light source.

Lors de l'installation de spots dans un plafond (ou autre paroi), il faut tenir compte de la présence d'un matériau isolant qui peut être par exemple un isolant dit déroulé tel une laine de verre ou une laine de roche ou bien un isolant dit soufflé tel une laine ou une ouate de cellulose. Il convient en effet de réserver une place pour l'installation du spot et sa connexion à l'arrière de la paroi et empêcher un contact direct de certains éléments avec l'isolant pour éviter tout risque d'incendie.When installing spotlights in a ceiling (or other wall), it is necessary to take into account the presence of an insulating material which may for example be an insulation said unwound such as a glass wool or a rock wool or a so-called blown insulation such as wool or cellulose wadding. It is advisable to reserve a place for the installation of the spot and its connection to the back of the wall and prevent direct contact of certain elements with the insulation to avoid any risk of fire.

Il est alors connu de mettre en oeuvre un système permettant de sécuriser l'installation d'un spot encastré dans un faux plafond. Ce système a pour but de créer un espace vide entre la partie arrière du spot et l'isolant utilisé à l'intérieur du faux plafond. Une zone de ventilation est ainsi créée réduisant ainsi les risques de surchauffe et d'incendie.It is then known to implement a system for securing the installation of a recessed spot in a false ceiling. This system aims to create an empty space between the rear part of the spot and the insulation used inside the false ceiling. A ventilation zone is thus created reducing the risk of overheating and fire.

Le document FR-2 977 300 révèle un dispositif de coiffage pour lampe à encastrer dans un plafond. Ce dispositif comporte une plaquette supérieure de laquelle s'étendent, d'une part, des branches d'un premier type munies de plaquettes d'arrêt pour coopérer avec un rebord d'un trou d'encastrement et, d'autre part, au moins une branche d'un second type de conception distincte de celle des branches du premier type, flexible et disposée dans l'espace entre deux branches du premier type. Ce dispositif permet de créer une cloche à l'arrière d'une paroi définissant un espace protégé à l'intérieur duquel peut venir prendre place une lampe.The document FR-2,977,300 reveals a styling device for a lamp to be built into a ceiling. This device comprises an upper plate from which, on the one hand, branches of a first type provided with stop plates to cooperate with a flange of a mounting hole and, on the other hand, less a branch of a second type of design distinct from that of the branches of the first type, flexible and arranged in the space between two branches of the first type. This device makes it possible to create a bell at the rear of a wall defining a protected space inside which can take place a lamp.

Le document FR-2 977 925 révèle un autre dispositif de coiffage pour lampe à encastrer dans un plafond. Ce dispositif se présente en plusieurs pièces pouvant former un kit. Un tel kit comporte par exemple un élément support et des branches qui peuvent venir se fixer sur l'élément support en diverses positions. Cette structure permet d'avoir, d'une part, un dispositif de coiffage de taille modulable et donc adaptable à la lampe à encastrer et, d'autre part, un dispositif peu encombrant avant montage des branches sur leur élément support.The document FR-2 977 925 reveals another styling device for a lamp to be built into a ceiling. This device is in several parts that can form a kit. Such a kit comprises for example a support element and branches which can be fixed on the support element in various positions. This structure makes it possible, on the one hand, to have a styling device of variable size and thus adaptable to the recessed lamp, and, on the other hand, a device that is not bulky before mounting the branches on their support element.

Ces dispositifs de coiffage sont indépendants de la lampe (ou similaire) qu'ils viennent coiffer. Ainsi, il pourrait arriver que si une lampe est mise en place avec son dispositif de coiffage avant la mise en place du matériau isolant, le dispositif de coiffage bascule et/ou se déplace et n'assure alors plus une protection optimale de la lampe qu'il est destiné protéger.These styling devices are independent of the lamp (or similar) they come to style. Thus, it could happen that if a lamp is put in place with its styling device before the insertion of the insulating material, the styling device tilts and / or moves and then no longer ensures optimum protection of the lamp. it is intended to protect.

La présente invention a alors pour but de fournir un dispositif permettant d'assurer une protection fiable d'un luminaire, de type spot (ou similaire), à encastrer dans une paroi.The present invention therefore aims to provide a device for providing reliable protection of a fixture, spot type (or the like) to be embedded in a wall.

Avantageusement, le dispositif selon l'invention sera facile et/ou rapide à mettre en oeuvre. Il s'agira de préférence d'un dispositif peu encombrant, tout du moins avant sa mise en oeuvre. Ce dispositif sera avantageusement facile à fabriquer et/ou bon marché.Advantageously, the device according to the invention will be easy and / or quick to implement. It will preferably be a compact device, at least before its implementation. This device will be advantageously easy to manufacture and / or cheap.

À cet effet, la présente invention propose un dispositif de recouvrement destiné à un spot encastré, ou similaire, avec des ressorts de fixation, ledit dispositif comportant une partie supérieure centrale et des branches s'étendant à partir de la partie supérieure centrale, au moins deux branches étant disposées de manière diamétralement opposée par rapport à la partie supérieure centrale.To this end, the present invention proposes a covering device for a recessed spot, or the like, with fixing springs, said device comprising a central upper part and branches extending from the central upper part, at least two branches being arranged diametrically opposite to the central upper part.

Selon l'invention, lesdites au moins deux branches présentent à leur extrémité opposée à la partie centrale supérieure au moins une lumière transversale prévue pour recevoir un ressort d'un spot et rendre le dispositif de recouvrement solidaire du spot, ou similaire.According to the invention, said at least two branches have at their end opposite to the upper central portion at least one transverse slot adapted to receive a spring of a spot and make the covering device integral with the spot, or the like.

La structure proposée par la présente invention permet alors d'introduire des ressorts qui sont presque toujours prévus sur un spot à encastrer dans les lumières transversales de deux branches du dispositif de recouvrement. De cette manière, le dispositif de recouvrement est rendu solidaire du spot et un positionnement correct du dispositif par rapport au spot peut être garanti et donc empêcher tout contact du spot avec un isolant. Le dispositif de recouvrement permet alors de réaliser en toute sécurité le recouvrement, ou le coiffage, d'un luminaire encastré de type spot.The structure proposed by the present invention then allows to introduce springs that are almost always provided on a spot to be embedded in the transverse slots of two branches of the covering device. In this way, the covering device is made integral with the spot and correct positioning of the device with respect to the spot can be guaranteed and thus prevent any contact of the spot with an insulator. The covering device then makes it possible to safely perform the covering, or styling, of a spot-type recessed luminaire.

Dans une forme de réalisation avantageuse d'un dispositif de recouvrement selon l'invention, chaque branche est articulée par rapport à la partie supérieure centrale par une charnière transversale élastique tendant à écarter les branches les unes des autres. De cette manière, les branches peuvent tout d'abord être positionnées sensiblement dans un même plan que la partie centrale supérieure, facilitant ainsi la fabrication et la manipulation pour le conditionnement du dispositif de recouvrement. En outre, le fait d'avoir des branches articulées légèrement précontraintes pour s'écarter les unes des autres permet d'utiliser un même dispositif de recouvrement pour des spots de divers diamètres.In an advantageous embodiment of a covering device according to the invention, each branch is articulated with respect to the central upper part by an elastic transverse hinge tending to spread the branches apart from each other. In this way, the branches can first be positioned substantially in the same plane as the upper central part, thus facilitating the manufacture and handling for the conditioning of the covering device. In addition, the fact of having articulated branches slightly preloaded to move away from each other makes it possible to use the same covering device for spots of various diameters.

Les spots étant introduits dans des trous circulaires, chaque branche présente une partie distale avec une forme globale de portion de cylindre circulaire de manière à pouvoir sensiblement épouser la forme du trou correspondant. Dans cette forme de réalisation, chaque partie distale de branche est par exemple une portion d'un cylindre de diamètre compris entre 60 et 90 mm. Ces dimensions correspondent aux dimensions les plus fréquemment utilisées pour faire un trou d'encastrement d'un luminaire dans un plafond.The spots being introduced into circular holes, each branch has a distal portion with a global shape of circular cylinder portion so as to be able to substantially match the shape of the corresponding hole. In this embodiment, each distal branch portion is for example a portion of a cylinder with a diameter of between 60 and 90 mm. These dimensions correspond to the most frequently used dimensions for making a recess hole of a luminaire in a ceiling.

Selon une forme de réalisation d'un dispositif de recouvrement dans lequel chaque branche est articulée par rapport à la partie supérieure centrale par une charnière transversale élastique tendant à écarter les branches les unes des autres, le dispositif de recouvrement comporte en outre au moins de préférence quatre branches ; les branches présentent chacune, d'une part, une extrémité distale en forme d'un arc de cercle et, d'autre part, deux bords latéraux, chaque bord latéral étant en vis-à-vis d'un bord latéral d'une branche voisine, et les branches peuvent avantageusement prendre conjointement :

  • une première position dans laquelle les branches sont écartées les unes des autres et les bords latéraux sont disposés à distance les uns des autres,
  • une deuxième position dans laquelle les extrémités distales des branches forment sensiblement un cercle et les bords latéraux d'une branche sont rapprochés, voire au contact, d'un bord latéral d'une branche voisine, et
  • une troisième position dans laquelle les branches se chevauchent lez long de leurs bords latéraux.
According to one embodiment of a covering device in which each branch is articulated relative to the central upper part by a transverse elastic hinge tending to separate the branches from each other, the covering device further comprises at least preferably four branches; the branches each have, on the one hand, a distal end in the shape of an arc of a circle and, on the other hand, two lateral edges, each lateral edge being opposite a lateral edge of a branch, and the branches can advantageously take jointly:
  • a first position in which the branches are spaced from each other and the lateral edges are arranged at a distance from each other,
  • a second position in which the distal ends of the branches substantially form a circle and the lateral edges of a branch are brought together or in contact with a lateral edge of a neighboring branch, and
  • a third position in which the branches overlap along their lateral edges.

Dans sa deuxième position et dans sa troisième position, ainsi que dans des positions intermédiaires entre celles-ci, le dispositif de recouvrement forme une enceinte étanche autour d'un luminaire qui viendrait prendre place entre les branches, l'étanchéité réalisée étant relative aux matériaux isolants utilisés le plus couramment pour l'isolation de plafonds.In its second position and in its third position, as well as in intermediate positions between them, the covering device forms a sealed enclosure around a luminaire that would take place between the branches, the tightness achieved being relative to the insulation materials used most commonly for the insulation of ceilings.

Dans cette forme de réalisation, dans la première position les branches forment par exemple un cône, et cette position correspond à une position non contrainte des branches.In this embodiment, in the first position the branches form for example a cone, and this position corresponds to an unstressed position of the branches.

On peut également prévoir que dans la deuxième position, le cercle formé par les extrémités distales est compris entre 80 et 95 mm. Ce cercle est alors adapté aux trous de plus grand diamètre que l'on utilise habituellement pour loger un spot, ou plus généralement un luminaire, dans un plafond.It is also possible that in the second position, the circle formed by the distal ends is between 80 and 95 mm. This circle is then adapted to the larger diameter holes that are usually used to house a spot, or more generally a fixture, in a ceiling.

Dans la troisième position, les branches peuvent par exemple se recouvrir en passant sur une branche voisine et sous une autre branche voisine, à la manière d'écailles de poisson. De cette manière, le dispositif de recouvrement peut s'adapter à plusieurs diamètres d'ouverture réalisés dans un plafond pour recevoir un luminaire.In the third position, the branches can for example overlap by passing on a neighboring branch and under another branch nearby, like fish scales. In this way, the covering device can adapt to several opening diameters made in a ceiling to receive a luminaire.

Pour une plus grande flexibilité et pouvoir s'adapter à un plus grand nombre de spots et/ou d'épaisseurs de plaque formant un plafond, chaque branche comportant une lumière transversale comporte avantageusement au moins deux lumières transversales.For greater flexibility and to be able to adapt to a greater number of spots and / or plate thicknesses forming a ceiling, each branch comprising a transverse light advantageously comprises at least two transverse slots.

Un dispositif de recouvrement selon l'invention peut s'adapter également à des spots associés à un boitier de raccordement munis d'une patte de maintien lorsque la partie centrale supérieure porte par exemple, d'une part, un élément de maintien monté pivotant sur la partie centrale supérieure et, d'autre part, des moyens de verrouillage de l'élément de maintien dans une position permettant de maintenir une patte sensiblement plane contre la partie centrale supérieure.A covering device according to the invention can also be adapted to spots associated with a connection box provided with a holding tab when the upper central part carries for example, on the one hand, a holding element pivotally mounted on the upper central part and, secondly, locking means of the holding member in a position for maintaining a substantially flat tab against the upper central portion.

Une forme de réalisation ergonomique prévoit qu'un dispositif de recouvrement selon l'invention comporte six ou huit branches similaires régulièrement réparties autour de la partie supérieure centrale.An ergonomic embodiment provides that a covering device according to the invention comprises six or eight similar branches regularly distributed around the central upper part.

Pour limiter son prix de revient, un dispositif de recouvrement selon l'invention peut être réalisé par injection d'une matière synthétique thermoplastique, par exemple un thermoplastique classé au feu.To limit its cost, a covering device according to the invention can be made by injection of a thermoplastic synthetic material, for example a fire-rated thermoplastic.

Dans le cas d'un dispositif de recouvrement moulé dans une matière synthétique, on peut prévoir que chaque branche est reliée à la partie supérieure centrale par une charnière obtenue par amincissement de matière et qu'au repos l'angle formé par chaque branche et la partie supérieure centrale est compris entre 160 et 200°. Dans la variante de réalisation prévue plus haut dans laquelle les branches peuvent prendre trois positions, l'angle formé au repos par chaque branche et la partie supérieure centrale est compris par exemple entre 100 et 135°In the case of a cover device molded in a synthetic material, it can be provided that each branch is connected to the upper central part by a hinge obtained by thinning material and at rest the angle formed by each branch and the central upper part is between 160 and 200 °. In the variant embodiment provided above in which the branches can take three positions, the angle formed at rest by each branch and the central upper part is for example between 100 and 135 °

La présente invention concerne également un ensemble formé par un dispositif de recouvrement et un spot lumineux, caractérisé en ce que le dispositif de recouvrement est un dispositif de recouvrement tel que décrit ci-dessus, en ce que le spot comporte des ressorts de fixation, et en ce qu'au moins un ressort est introduit dans une lumière transversale du dispositif de recouvrement. Dans cet ensemble, le spot et le dispositif de recouvrement sont solidarisés grâce à la coopération d'au moins un ressort du spot avec une lumière transversale d'une branche du dispositif de recouvrement.The present invention also relates to an assembly formed by a covering device and a light spot, characterized in that the covering device is a covering device as described above, in that the spot comprises fixing springs, and in that at least one spring is introduced into a transverse light of the covering device. In this assembly, the spot and the covering device are secured by the cooperation of at least one spring of the spot with a transverse light of a branch of the covering device.

Des détails et avantages de la présente invention apparaitront mieux de la description qui suit, faite en référence au dessin schématique annexé sur lequel :

  • La figure 1 illustre en perspective une première forme de réalisation d'un dispositif de recouvrement de luminaire selon la présente invention,
  • La figure 2 illustre en perspective une seconde forme de réalisation préférée d'un dispositif de recouvrement de luminaire selon la présente invention,
  • La figure 3 montre toujours en perspective le dispositif de la figure 2 sous un autre angle de vue,
  • La figure 4 est une vue de dessus du dispositif des figures 2 et 3,
  • La figure 5 est une vue de côté du dispositif des figures 2 à 4,
  • La figure 6 illustre un encastrement d'un spot dans un plafond, sans mise en oeuvre d'un dispositif de recouvrement selon l'invention,
  • La figure 7 est une vue schématique de détail illustrant un dispositif de recouvrement en position dans un trou destiné à recevoir un spot et muni d'un tel spot,
  • La figure 8 est une vue de dessous d'une autre variante de réalisation d'un dispositif de recouvrement, et
  • La figure 9 illustre une vue en perspective du dispositif de recouvrement de la figure 8 en position non contrainte, en sortie de moule.
Details and advantages of the present invention will become more apparent from the description which follows, given with reference to the appended schematic drawing in which:
  • The figure 1 illustrates in perspective a first embodiment of a luminaire covering device according to the present invention,
  • The figure 2 illustrates in perspective a second preferred embodiment of a luminaire covering device according to the present invention,
  • The figure 3 always shows in perspective the device of the figure 2 from another angle of view,
  • The figure 4 is a top view of the device figures 2 and 3 ,
  • The figure 5 is a side view of the device of the Figures 2 to 4 ,
  • The figure 6 illustrates a recess of a spot in a ceiling, without implementation of a covering device according to the invention,
  • The figure 7 is a schematic detail view illustrating a covering device in position in a hole for receiving a spot and provided with such a spot,
  • The figure 8 is a view from below of another variant embodiment of a covering device, and
  • The figure 9 illustrates a perspective view of the recovery device of the figure 8 in the unstressed position, at the outlet of the mold.

Dans les formes de réalisation illustrées sur les figures jointes, un dispositif de recouvrement selon la présente invention se présente sous la forme d'une pièce moulée en matière synthétique, par exemple un matériau ininflammable tel un thermoplastique classé feu. Comme on peut le remarquer, il s'agit ici d'un dispositif monobloc qui est représenté dans sa position de "repos" correspondant à sa position de sortie de moule après refroidissement (sauf figures 7 et 8).In the embodiments illustrated in the attached figures, a covering device according to the present invention is in the form of a molded part made of synthetic material, for example a non-flammable material such as a thermoplastic classified fire. As can be seen, this is a monobloc device which is represented in its "rest" position corresponding to its mold outlet position after cooling (except figures 7 and 8 ).

Le dispositif de recouvrement est destiné à assurer un recouvrement fiable d'un luminaire encastré dans une paroi. Il présente à cet effet une partie centrale appelée par la suite partie centrale supérieure 2 (destinée à venir prendre place au-dessus du luminaire lorsque ce dernier est encastré dans un plafond ou faux plafond) à partir de laquelle s'étendent des branches 4 (destinées à venir entourer le luminaire encastré). Dans une forme de réalisation préférée, six ou huit branches 4 s'étendent radialement depuis la partie centrale supérieure 2. Les branches 4 sont de préférence régulièrement réparties autour de la partie centrale supérieure 2. Il convient de prévoir au moins deux branches 4 disposées de manière diamétralement opposées par rapport à la partie centrale supérieure 2.The covering device is intended to ensure reliable recovery of a recessed luminaire in a wall. For this purpose, it has a central part, subsequently called the upper central part 2 (intended to be fitted above the luminaire when the latter is embedded in a ceiling or false ceiling) from which branches 4 extend ( intended to surround the recessed luminaire). In a preferred embodiment, six or eight branches 4 extend radially from the upper central portion 2. The branches 4 are preferably uniformly distributed around the upper central portion 2. It is necessary to provide at least two branches 4 disposed of diametrically opposite with respect to the upper central part 2.

Dans la présente description, l'orientation supérieur/inférieur est choisie pour correspondre à un dispositif de recouvrement positionné dans un plafond. Ainsi par exemple, alors que les branches 4 dans la position représentée sur les figures sont sensiblement coplanaires avec la partie centrale supérieure 2, ces branches 4 sont rabattues "vers le bas" pour venir se positionner autour d'un luminaire à encastrer. La présente description est par la suite faite en référence à un spot mais la présente invention peut s'adapter à d'autres luminaires encastrés, par exemple de forme rectangulaire (il suffit alors d'adapter la forme de la partie centrale supérieure 2 et éventuellement le nombre de branches 4).In the present description, the upper / lower orientation is chosen to correspond to a covering device positioned in a ceiling. For example, while the branches 4 in the position shown in the figures are substantially coplanar with the upper central portion 2, these branches 4 are folded "downwards" to be positioned around a recessed luminaire. The present description is subsequently made with reference to a spot, but the present invention can be adapted to other recessed luminaires, for example of rectangular shape (it is then sufficient to adapt the shape of the upper central part 2 and possibly the number of branches 4).

La figure 1 illustre une première forme de réalisation de l'invention dans laquelle la partie centrale supérieure 2 présente une forme d'hexagone sensiblement plan. Chaque branche 4 est articulée par une charnière 6 à un côté de l'hexagone. La charnière 6 est obtenue directement lors du moulage en prévoyant un amincissement de matière au niveau de la jonction entre la partie centrale supérieure 2 et la branche 4 correspondante.The figure 1 illustrates a first embodiment of the invention wherein the upper central portion 2 has a substantially planar hexagon shape. Each branch 4 is articulated by a hinge 6 to one side of the hexagon. The hinge 6 is obtained directly during molding by providing a thinning material at the junction between the upper central portion 2 and the corresponding branch 4.

Les branches 4 sont de préférence toutes identiques. Dans les deux formes de réalisation représentées, chaque branche 4 se présente sous la forme d'une lame. Du côté de la partie centrale supérieure 2, la branche 4 présente un bord transversal proximal sensiblement rectiligne pour se raccorder à un coté de l'hexagone formé par la partie centrale supérieure 2 au niveau de la charnière 6 correspondante. Chaque branche 4 présente aussi une partie distale 8 recourbée longitudinalement formant ainsi une portion de cylindre. Une partie proximale 10 forme alors une zone de transition dans laquelle la courbure de la lame s'accentue depuis une courbure nulle à l'extrémité proximale jusqu'à la courbure de la partie distale 8. La courbure de la partie distale 8 correspond de préférence à un rayon de courbure compris entre 30 et 45 mm, c'est-à-dire que la partie distale forme une portion d'un cylindre d'un diamètre compris entre 60 et 90 mm. Ces dimensions correspondent aux diamètres des trous usuellement réalisés dans un plafond pour encastrer un spot lumineux ou similaire.The branches 4 are preferably all identical. In both embodiments shown, each branch 4 is in the form of a blade. On the side of the upper central portion 2, the branch 4 has a substantially rectilinear proximal transverse edge for connecting to one side of the hexagon formed by the upper central portion 2 at the corresponding hinge 6. Each branch 4 also has a distal portion 8 curved longitudinally thus forming a cylinder portion. A proximal portion 10 then forms a transition zone in which the curvature of the blade increases from a zero curvature at the proximal end to the curvature of the distal portion 8. The curvature of the distal portion 8 preferably corresponds to at a radius of curvature between 30 and 45 mm, that is to say that the distal portion forms a portion of a cylinder with a diameter of between 60 and 90 mm. These dimensions correspond to the diameters of the holes usually made in a ceiling for embedding a light spot or the like.

Enfin, on remarque sur la partie distale 8 de chaque branche 4, la présence de lumières 12 transversales. Chaque lumière 12 est disposée à proximité de l'extrémité distale de la branche 4 correspondante, à une distance d'environ quelques millimètres à quelques centimètres (moins de 5 cm par exemple) de l'extrémité distale de la branche 4. Les lumières 12 s'étendent sur presque toute la largeur de la branche 4 correspondante sans toutefois déboucher dans un bord longitudinal de la branche 4. Chaque lumière 12 présente dans la forme de réalisation représentée une forme de trou oblong d'une largeur de quelques millimètres et de longueur adaptée à la largeur de la branche 4.Finally, we note on the distal portion 8 of each branch 4, the presence of transverse lights 12. Each lumen 12 is disposed near the distal end of the corresponding branch 4, at a distance of about a few millimeters to a few centimeters (less than 5 cm for example) from the distal end of the branch 4. The lights 12 extend over almost the entire width of the corresponding branch 4 without opening into a longitudinal edge of the branch 4. Each light 12 has in the embodiment shown a shape of oblong hole with a width of a few millimeters and length adapted to the width of the branch 4.

La forme de réalisation préférée illustrée sur les figures 2 à 5 compte huit branches 4. Les références utilisées sur la figure 1 sont reprises ici pour désigner des éléments similaires. La partie centrale supérieure 2 se présente ici sous la forme globale d'un octogone dont chaque côté porte une branche 4. On remarque toutefois notamment sur la figure 3 la présence d'un évidement 14 au niveau de chaque sommet de l'octogone. Ces évidements 14 sont destinés à permettre le passage d'un câble d'alimentation électrique pour un spot, ou similaire, venant prendre place entre les branches 4 du dispositif de recouvrement, comme illustré sur la figure 5 et expliqué plus loin dans la description. Ces évidements 14 facilitent le passage d'un câble électrique qui pourrait toutefois passer entre les branches 4 et sont donc optionnels.The preferred embodiment illustrated on the Figures 2 to 5 has eight branches. 4. The references used on the figure 1 are repeated here to designate similar elements. The upper central portion 2 is here in the overall form of an octagon with each side carrying a branch 4. However, note in particular on the figure 3 the presence of a recess 14 at each vertex of the octagon. These recesses 14 are intended to allow the passage of a power supply cable for a spot, or the like, to take place between the branches 4 of the covering device, as shown in FIG. figure 5 and explained later in the description. These recesses 14 facilitate the passage of an electric cable which could however pass between the branches 4 and are therefore optional.

La partie centrale supérieure 2 présente sur sa face supérieure un étier de verrouillage 16 et des moyens de verrouillage élastiques correspondants.The upper central portion 2 has on its upper face a locking member 16 and corresponding resilient locking means.

L'étier de verrouillage 16 s'étend au repos sensiblement perpendiculairement à la partie centrale supérieure 2 sur laquelle il est articulé. L'articulation est obtenue ici par un amincissement de matière. L'étrier présente deux branches et une base. Les extrémités des branches opposées à la base sont articulées sur la partie centrale supérieure 2 tandis que la base se présente sous la forme d'une traverse 18 pouvant coopérer avec les moyens de verrouillage élastiques.The lock member 16 extends at rest substantially perpendicular to the upper central portion 2 on which it is hinged. The articulation is obtained here by a thinning of material. The stirrup has two branches and a base. The ends of the branches opposite the base are articulated on the upper central portion 2 while the base is in the form of a cross member 18 which can cooperate with the elastic locking means.

Les moyens de verrouillage élastiques se présentent sous la forme de deux clips 20 disposés en vis-à-vis et s'étendant vers le haut à partir de la partie centrale supérieure 2. Chaque clip 20 se présente sous la forme d'un harpon avec une tige verticale portant un crochet. Les crochets des deux clips 20 sont disposés l'un face à l'autre. Les clips 20 sont positionnés de telle sorte que lorsque l'étrier de verrouillage 16 pivote vers eux, la traverse 18 vienne se loger entre les clips 20 en les écartant l'un de l'autre lorsqu'elle passe au niveau de la partie en crochet des clips 20. Une fois cette partie en crochet dépassée, la traverse 18 est emprisonnée et l'étrier de verrouillage 16 est alors maintenu en position rabattue. Dans cette dernière position, l'étrier de verrouillage s'étend alors sensiblement parallèlement à la partie centrale supérieure 2. On peut ici noter qu'un seul clip 20 permettrait également d'assurer le verrouillage de l'étrier de verrouillage 16 dans sa position fermée.The resilient locking means are in the form of two clips 20 arranged facing each other and extending upwards from the upper central portion 2. Each clip 20 is in the form of a harpoon with a vertical rod carrying a hook. The hooks of the two clips 20 are arranged facing each other. The clips 20 are positioned so that when the locking stirrup 16 pivots towards them, the cross member 18 is housed between the clips 20 by moving apart from each other when it passes at the level of the part. hook clips 20. Once this hook portion exceeded, the cross 18 is trapped and the locking bracket 16 is then held in the folded position. In this latter position, the locking yoke then extends substantially parallel to the upper central portion 2. It can be noted here that a single clip 20 would also make it possible to lock the locking yoke 16 in its position. closed.

La forme des branches 4 du dispositif de recouvrement des figures 2 à 5 est similaire à celle des branches de la figure 1. Leur taille est adaptée au fait qu'il y a six branches d'un côté et huit de l'autre. Lorsque les branches 4 pivotent toutes à partir de leur position de repos illustrée sur les figures 1 à 5 d'environ 90°, les parties distales 8 des branches 4 forment alors un cylindre avec éventuellement des interstices de l'ordre du millimètre ou de quelques millimètres entre les branches, comme illustré sur la figure 7.The shape of the branches 4 of the recovery device Figures 2 to 5 is similar to that of the branches of the figure 1 . Their size is adapted to the fact that there are six branches on one side and eight on the other. When the branches 4 all pivot from their rest position illustrated on the Figures 1 to 5 by about 90 °, the distal portions 8 of the branches 4 then form a cylinder with possibly interstices of the order of a millimeter or a few millimeters between the branches, as shown in FIG. figure 7 .

Dans la forme de réalisation des figures 8 et 9, on retrouve un dispositif de recouvrement dont la structure est proche de celui des figures 2 à 5. Par rapport au dispositif des figures 2 à 5, qui comme lui comporte huit branches 4, ces dernières sont élargies pour permettre d'assurer une meilleure étanchéité aux isolants utilisés dans les plafonds. Comme pour les autres formes de réalisation illustrées, chaque branche 4 présente un bord distal opposé à la charnière 6 correspondante et des bords latéraux s'étendant à partir du bord distal vers la charnière 6.In the embodiment of the Figures 8 and 9 , we find a recovery device whose structure is close to that of Figures 2 to 5 . Compared to the device of Figures 2 to 5 which like it has eight branches 4, the latter are widened to ensure a better seal to insulation used in ceilings. As for the other illustrated embodiments, each leg 4 has a distal edge opposite the corresponding hinge 6 and side edges extending from the distal edge to the hinge 6.

Il est prévu dans la forme de réalisation des figures 8 et 9 que les branches 4 soient juxtaposées lorsque leurs extrémités distales sont disposées dans une ouverture d'un diamètre de 90 mm (correspondant à l'ouverture maximale utilisée pour les spots les plus courants) comme illustrées sur la figure 8. Les extrémités distales des bords latéraux viennent se recouvrir très légèrement -par exemple sur 1 à 2 mm-, un bord latéral d'une branche 4 se trouvant "sous" le bord latéral correspondant d'une branche 4 voisine tandis que l'autre bord latéral de la même branche 4 se trouve alors "sur" le bord latéral 4 correspondant d'une autre branche 4 voisine.It is intended in the embodiment of the Figures 8 and 9 that the branches 4 are juxtaposed when their distal ends are arranged in an aperture with a diameter of 90 mm (corresponding to the maximum aperture used for the most common spots) as illustrated in FIG. figure 8 . The distal ends of the lateral edges are covered very slightly-for example on 1 to 2 mm-, a lateral edge of a branch 4 being "under" the corresponding lateral edge of a neighboring branch 4 while the other edge Lateral of the same branch 4 is then "on" the corresponding lateral edge 4 of another branch 4 neighbor.

La forme des branches 4, et donc de leurs bords latéraux, est telle que dans la position illustrée sur la figure 8, l'interstice entre deux bords latéraux voisins est réduit, par exemple reste inférieur à 2 ou 3 mm. Les bords latéraux voisins viennent de préférence localement au contact l'un de l'autre. De cette manière, une bonne étanchéité est réalisée.The shape of the branches 4, and therefore of their lateral edges, is such that in the position illustrated on the figure 8 , the gap between two adjacent side edges is reduced, for example remains less than 2 or 3 mm. The neighboring lateral edges are preferably locally in contact with each other. In this way, a good seal is achieved.

Lorsque ce dispositif de recouvrement est utilisé pour coiffer un spot de plus petite taille, par exemple de 60 mm de diamètre, alors les branches 4 sont resserrées et viennent se chevaucher avec un recouvrement plus important (de l'ordre de 12 à 14 mm). Les extrémités distales des branches 4 viennent ainsi se chevaucher comme des écailles de poisson ou comme des tuiles. Cette position n'est pas illustrée sur le dessin annexé mais se déduit aisément de la figure 8.When this covering device is used to cover a spot of smaller size, for example 60 mm in diameter, then the branches 4 are tightened and overlap with a greater overlap (of the order of 12 to 14 mm) . The distal ends of the branches 4 thus come to overlap like fish scales or as tiles. This position is not illustrated in the accompanying drawing but is easily deduced from the figure 8 .

La figure 9 illustre le dispositif de recouvrement de la figure 8 dans sa position "de repos", correspondant à sa forme en sortie de fabrication. Les branches 4 sont ici écartées et forment un cône, par exemple avec un demi-angle au sommet compris entre 10 et 45° (sur les figures 2 à 5, cet angle serait de l'ordre de 90°. Cette forme conique permet de faciliter la mise en position des pattes lorsque le dispositif de recouvrement est utiliser pour coiffer et sécuriser un spot, ou autre luminaire, comme expliqué plus loin.The figure 9 illustrates the recovery device of the figure 8 in its "rest" position, corresponding to its output form. The branches 4 are here separated and form a cone, for example with a half-angle at the apex between 10 and 45 ° (on the Figures 2 to 5 this angle would be of the order of 90 °. This conical shape facilitates the positioning of the tabs when the covering device is used to cap and secure a spot, or other fixture, as explained below.

On remarque en outre que les branches 4 sur la figure 1 présentent deux lumières 12 tandis que les branches 4 des figures 2 à 5 et 8, 9 comportent trois lumières 12.Note also that branches 4 on the figure 1 show two lights 12 while the branches 4 of the Figures 2 to 5 and 8, 9 have three lights 12.

La figure 6 illustre un contexte dans lequel un dispositif de recouvrement tel que décrit ci-dessus peut être mis en oeuvre. Il s'agit ici d'encastrer un spot 21 dans un plafond 22 (que l'on suppose horizontal) formé par exemple de plaques de plâtre suspendues. Un trou 24, généralement d'un diamètre compris entre 60 et 90 mm, est réalisé à l'aide d'une scie à cloche. Le spot 21 est alors raccordé électriquement à des câbles d'alimentation prévus dans le plafond 22 puis est encastré dans le plafond 22 au niveau du trou 24 correspondant. Des ressorts 26 sont précontraints pour loger le spot 21 dans son trou 24. Une fois le spot en place, les ressorts 26 le maintiennent en position en prenant appui sur la face supérieure de la plaque de plâtre de manière connue de l'homme du métier (et de tout bricoleur).The figure 6 illustrates a context in which a recovery device as described above can be implemented. This is to embed a spot 21 in a ceiling 22 (which is assumed horizontal) formed for example suspended gypsum board. A hole 24, generally of a diameter of between 60 and 90 mm, is made using a hole saw. The spot 21 is then electrically connected to power cables provided in the ceiling 22 and is embedded in the ceiling 22 at the corresponding hole 24. Springs 26 are prestressed to house the spot 21 in its hole 24. Once the spot in place, the springs 26 hold it in position by resting on the upper face of the plasterboard in a manner known to those skilled in the art (and any handyman).

L'utilisation d'un dispositif de recouvrement selon la présente invention permet d'éviter tout contact du spot 21 lorsque celui-ci est encastré dans le plafond 22 avec un isolant tel par exemple de la laine de verre ou un isolant soufflé qui se trouverait dans le plafond. On évite de la sorte tout contact entre ledit isolant est les pièces de connexion électrique du spot et on permet de réaliser une ventilation du spot à l'arrière pour éviter une surchauffe.The use of a covering device according to the present invention makes it possible to avoid any contact of the spotlight 21 when it is embedded in the ceiling 22 with an insulator such as for example glass wool or a blown insulation which would be found in the ceiling. This avoids any contact between said insulation is the electrical connection parts of the spot and it is possible to provide a ventilation of the spot at the rear to prevent overheating.

Le dispositif de recouvrement illustré sur les figures 2 à 5 et 8, 9 est adapté pour le montage de spots équipés d'un boitier de raccordement, notamment un boitier de raccordement présentant une patte métallique. Un tel spot et son boitier de raccordement sont connus de l'homme du métier et ne sont pas représentés sur le dessin annexé.The covering device illustrated on the Figures 2 to 5 and 8, 9 is suitable for mounting spotlights equipped with a connection box, in particular a connection box having a metal tab. Such a spot and its connection box are known to those skilled in the art and are not shown in the accompanying drawing.

Pour un spot muni d'un boitier de raccordement avec une patte métallique, on utilisera de préférence un dispositif de recouvrement du type de celui illustré sur les figures 2 à 5 ou 8 et 9.For a spot equipped with a connection box with a metal tab, it will be preferable to use a covering device of the type illustrated in the drawings. Figures 2 to 5 or 8 and 9 .

Le dispositif de recouvrement (figure 1 ou figures 2 à 5) est par exemple livré dans la position déployée montrée sur les figures 1 à 5 pour faciliter sa fabrication et sa manipulation notamment lors de son conditionnement. Pour la forme de réalisation des figures 8 et 9, la forme conique des dispositifs les rend gerbables, permettant ici aussi de les ranger en gagnant de la place.The recovery device ( figure 1 or Figures 2 to 5 ) is for example delivered in the deployed position shown on the Figures 1 to 5 to facilitate its manufacture and its handling especially during its packaging. For the embodiment of Figures 8 and 9 , the conical shape of the devices makes them stackable, allowing here also to store them by gaining space.

Dans le cas où le spot présente un boitier de raccordement, la patte métallique de celui-ci vient se fixer sur la partie centrale supérieure 2. Le boitier de raccordement est relié au spot proprement dit par un fil électrique (non représenté). Ce fil vient se loger dans un évidement 14 se trouvant entre deux branches 4 à leurs extrémités proximales. La patte métallique du boitier de raccordement est alors placée entre l'étrier de verrouillage 16 et les moyens de verrouillage élastiques associés (clip(s) 20). L'étrier de verrouillage 16 est alors rabattu de telle sorte que sa traverse 18 vienne s'encliqueter dans les moyens de verrouillage élastiques. Le boitier de raccordement est alors maintenu sur le dispositif de recouvrement. La patte portant le boitier de raccordement du spot est positionnée parallèlement à la partie centrale supérieure 2 de telle sorte que cette patte se retrouve à l'horizontale lorsque le spot est encastré dans un plafond.In the case where the spot has a junction box, the leg metal of the latter is attached to the upper central portion 2. The connecting box is connected to the spot itself by an electric wire (not shown). This wire is housed in a recess 14 located between two branches 4 at their proximal ends. The metal bracket of the connection box is then placed between the locking bracket 16 and the associated resilient locking means (clip (s) 20). The locking stirrup 16 is then folded so that its cross member 18 snaps into the resilient locking means. The connection box is then held on the covering device. The tab carrying the spot connection box is positioned parallel to the upper central portion 2 so that this tab is found horizontally when the spot is embedded in a ceiling.

Pour la mise en place du dispositif de recouvrement dans le cas d'un spot sans boitier de raccordement, les étapes qui suivent sont mises en oeuvre. Ces étapes sont également mises en oeuvre pour un spot avec boitier de raccordement après fixation de ce dernier sur le dispositif de recouvrement comme décrit ci-dessus.For the installation of the covering device in the case of a spot without a connection box, the following steps are implemented. These steps are also implemented for a spot with a connection box after fixing of the latter on the covering device as described above.

Les branches 4 (au nombre de six ou de huit, ou plus généralement toutes les branches) sont repliées vers le bas de manière à former avec leurs parties distales 8 sensiblement un cylindre. Les ressorts 26 sont alors chacun introduits dans une lumière 12. Les lumières 12 concernées se trouvent dans des branches 4 diamétralement opposées par rapport à la partie centrale supérieure 2. Dans une branche 4 donnée, la lumière 12 qui reçoit le ressort 26 correspondant est choisie en fonction de l'épaisseur du plafond 22 et/ou de la position des ressorts 26 sur le spot 21. La présence de plusieurs lumières 12 sur chaque branche 4 permet de régler le positionnement du dispositif de recouvrement par rapport au spot 21 bien entendu mais aussi par rapport au plafond 22.The branches 4 (six or eight, or more generally all the branches) are folded downwards so as to form with their distal portions 8 substantially a cylinder. The springs 26 are then each introduced into a lumen 12. The lumens 12 concerned are in branches 4 which are diametrically opposite with respect to the upper central portion 2. In a given branch 4, the lumen 12 which receives the corresponding spring 26 is chosen. depending on the thickness of the ceiling 22 and / or the position of the springs 26 on the spot 21. The presence of several lights 12 on each leg 4 allows to adjust the positioning of the covering device with respect to the spot 21 of course but also in relation to the ceiling 22.

Ensuite, comme pour le montage d'un spot 21 sans dispositif de recouvrement, les ressorts 26 sont relevés, tout en restant ici engagés dans les lumières 12, avant d'introduire l'ensemble (spot et dispositif de recouvrement avec éventuellement un boitier de raccordement) au travers du trou 24. Une fois les extrémités des ressorts 26 introduites dans le plafond, il suffit de les relâcher pour qu'ils se détendent et viennent assurer le maintien à la fois du spot et du dispositif de recouvrement dans le trou 24.Then, as for mounting a spot 21 without a covering device, the springs 26 are raised, while remaining here engaged in the slots 12, before introducing the assembly (spot and cover device with possibly a box of connection) through the hole 24. Once the ends of the springs 26 introduced into the ceiling, simply releasing them so that they relax and come ensure the maintenance of both the spot and cover in hole 24.

La figure 7 illustre la partie inférieure d'un dispositif de recouvrement et un spot encastrés dans le plafond 22. Les extrémités distales des branches 4 se trouvent au niveau de l'épaisseur de la plaque de plâtre dans laquelle le trou 24 est réalisé. Les branches 4 sont ainsi maintenues pour les empêcher de revenir dans leur position de repos.The figure 7 illustrates the lower part of a covering device and a recessed spot in the ceiling 22. The distal ends of the branches 4 are at the thickness of the plasterboard in which the hole 24 is made. The branches 4 are thus maintained to prevent them from returning to their rest position.

La présente invention permet une solidarisation entre le spot (ou similaire) et le dispositif de recouvrement. Une seule opération suffit ici pour monter le spot et son dispositif de recouvrement. On obtient donc à la fois un montage aisé (une seule opération) et un recouvrement fiable du spot (grâce au maintien du dispositif de recouvrement par les ressorts du spot, le dispositif de recouvrement est solidaire du spot).The present invention allows a connection between the spot (or the like) and the covering device. A single operation is sufficient here to mount the spot and its covering device. Thus we obtain at the same time an easy assembly (a single operation) and a reliable recovery of the spot (thanks to the maintenance of the covering device by the springs of the spot, the covering device is integral with the spot).

Un spot monté avec un dispositif de recouvrement tel que décrit plus haut peut également facilement être démonté. Le dispositif de recouvrement de gêne nullement le démontage du spot. Il suffit de tirer sur le spot perpendiculairement au plafond (flèche 28 sur la figure 7) pour extraire l'ensemble formé par le spot et son dispositif de recouvrement.A spot mounted with a covering device as described above can also easily be removed. The recovery device does not discourage disassembly of the spot. Just pull the spot perpendicular to the ceiling (arrow 28 on the figure 7 ) to extract the assembly formed by the spot and its covering device.

Le dispositif de recouvrement selon l'invention peut aussi bien être monté dans un faux plafond réalisé dans un matériau tendre que dans un faux plafond réalisé dans un matériau dur. Comme indiqué plus haut, il s'adapte aussi à diverses épaisseurs du matériau constituant le faux plafond.The covering device according to the invention may as well be mounted in a false ceiling made of a soft material that in a false ceiling made of a hard material. As indicated above, it also adapts to various thicknesses of the material constituting the false ceiling.

Le dispositif de recouvrement selon l'invention permet d'assurer un recouvrement fiable d'un spot encastré ou similaire grâce à la solidarisation du spot et du dispositif de recouvrement. Ce dernier est monté de façon imperdable sur le spot. Il ne peut être retiré qu'en retirant le spot.The covering device according to the invention makes it possible to ensure a reliable covering of a recessed spot or the like by securing the spot and the covering device. The latter is mounted captively on the spot. It can only be removed by removing the spot.

Bien entendu, la présente invention ne se limite pas aux deux formes de réalisation décrites ci-dessus à titre d'exemples de réalisation préférés de la présente invention et aux variantes évoquées. Elle s'étend également à toute forme de réalisation à la portée de l'homme du métier dans le cadre des revendications ci-après.Of course, the present invention is not limited to the two embodiments described above as preferred embodiments of the present invention and the variants mentioned. It also extends to any embodiment within the scope of those skilled in the art within the scope of the claims below.

Claims (15)

  1. Covering device intended for an embedded spotlight, or similar, with fixing springs, said device comprising a top central part (2) and arms (4) extending from the top central part (2), at least two arms being arranged diametrically opposite with respect to the top central part (2),
    characterised in that said at least two arms (4) have, at the end thereof opposite to the top central part (2), at least one transverse aperture (12) designed to receive a spring of a spotlight and to secure the covering device to the spotlight, or similar.
  2. Covering device according to claim 1, characterised in that each arm (4) is articulated with respect to the central top part (2) by an elastic transverse hinge (6) tending to separate the arms (4) from each other.
  3. Covering device according to either claim 1 or claim 2, characterised in that each arm (4) has a distal part (8) with the overall shape of a circular cylinder portion.
  4. Covering device according to claim 3, characterised in that each distal part (8) of an arm is a portion of a cylinder with a diameter between 60 and 90 mm.
  5. Covering device according to claim 2, characterised in that it comprises at least four arms, in that the arms each having firstly a distal end in the form of an arc of a circle and secondly two lateral edges, each lateral edge being facing a lateral edge of an adjacent arm, and in that the arms may conjointly adopt:
    - a first position in which the arms are separated from one another and the lateral edges are arranged at a distance from one another,
    - a second position in which the distal ends of the arms form substantially a circle and the lateral edges of an arm are brought close to, or even in contact with, a lateral edge of an adjacent arm, and
    - a third position in which the arms overlap along their lateral edges.
  6. Covering device according to claim 5, characterised in that in the first position the arms form a cone, and in that this position corresponds to an unstressed position of the arms.
  7. Covering device according to either claim 5 or claim 6, characterised in that, in the second position, the circle formed by the distal ends is between 80 and 95 mm.
  8. Covering device according to any of claims 5 to 7, characterised in that, in the third position, the arms overlap by passing over an adjacent arm and under another adjacent arm, like fish scales.
  9. Covering device according to any of claims 1 to 8, characterised in that each arm (4) comprising a transverse aperture (12) comprises at least two transverse apertures (12).
  10. Covering device according to any of claims 1 to 9, characterised in that the top central part (2) carries firstly a holding element (16) mounted pivotably on the top central part (2) and secondly means (20) for locking the holding element (16) in a position making it possible to hold a substantially flat lug against the top central part (2).
  11. Covering device according to any of claims 1 to 10, characterised in that it comprises six or eight similar arms (4) regularly distributed around the central top part (2).
  12. Covering device according to any of claims 1 to 11, characterised in that it is produced by injecting a thermoplastic synthetic material.
  13. Covering device according to claim 12, characterised in that each arm (4) is connected to the central top part (2) by a hinge (6) obtained by thinning of material and in that at rest the angle formed by each arm (4) and the central top part (2) is between 160° and 200°.
  14. Covering device according to claims 6 and 12, characterised in that each arm (4) is connected to the central top part (2) by a hinge (6) obtained by thinning of material and in that at rest the angle formed by each arm (4) and the central top part (2) is between 100° and 135°.
  15. Assembly formed by a covering device and a spotlight (21), characterised in that the covering device is a covering device according to any of claims 1 to 14, in that the spotlight (21) comprises fixing springs (26), and in that at least one spring (26) is introduced into a transverse aperture (12) of the covering device.
EP14185811.8A 2013-09-24 2014-09-22 Covering device for a spot-type lighting fixture Active EP2860445B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1359167A FR3011064B1 (en) 2013-09-24 2013-09-24 SECURING DEVICE FOR A SPOT TYPE RECESSED LUMINAIRE

Publications (2)

Publication Number Publication Date
EP2860445A1 EP2860445A1 (en) 2015-04-15
EP2860445B1 true EP2860445B1 (en) 2018-11-14

Family

ID=49753368

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Application Number Title Priority Date Filing Date
EP14185811.8A Active EP2860445B1 (en) 2013-09-24 2014-09-22 Covering device for a spot-type lighting fixture

Country Status (2)

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EP (1) EP2860445B1 (en)
FR (1) FR3011064B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3081042B1 (en) * 2018-05-09 2021-04-16 Midi Moulages Plast INSULATION EXTENSION DEVICE FOR THE PROTECTION OF A LIGHTING SYSTEM

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Publication number Priority date Publication date Assignee Title
GB2237867B (en) * 1989-11-10 1992-09-02 Rotaflex Ltd Light fittings
DE4324057C2 (en) * 1993-07-17 2003-10-16 Kaiser Gmbh & Co Kg Hollow body for electrical installation
FR2730354B1 (en) * 1995-02-06 1997-04-25 Alombard Sa SYSTEM FOR FIXING A HOUSING FOR ELECTRICAL APPARATUS AND METHOD FOR MOUNTING SUCH A HOUSING FOR FIXING ELECTRICAL APPARATUS
DE29712605U1 (en) * 1997-07-17 1998-01-22 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg Recessed luminaire
CH692960A5 (en) * 1998-12-29 2002-12-31 Adolf Stoeri Downlight and hollow ceiling with such a downlight.
DE20217028U1 (en) * 2002-11-01 2003-04-10 Werkzeugbau Kroeger Gmbh Spacer for flush-mounting in opening and holding halogen lamp, comprises plate with supports bend down from it, to grip in flat section.
GB2436673B (en) * 2006-03-27 2008-11-19 Magenta Group Internat Corp Fitting protector
DE502008002549D1 (en) * 2007-08-29 2011-03-24 Elprothom Gmbh & Co Kg Spacer for installation in a lightweight board
FR2977300B1 (en) * 2011-06-30 2014-09-12 Hellermanntyton CEILING LAMP STAMPING
FR2977925B1 (en) * 2011-07-15 2014-09-26 Hellermanntyton LAMP HAIRING DEVICE FOR CEILING
FR2982341B1 (en) * 2011-11-08 2013-12-20 Ram Chevilles Et Fixations Soc CAGE OF THERMAL DISSIPATION
FR2986055B1 (en) * 2012-01-24 2015-04-03 Hellermanntyton CEILING LAMP STAMPING

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Publication number Publication date
FR3011064B1 (en) 2018-02-23
EP2860445A1 (en) 2015-04-15
FR3011064A1 (en) 2015-03-27

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