EP3901387A1 - Method for manufacturing and implementing a suspended ceiling made up of vertical strips - Google Patents

Method for manufacturing and implementing a suspended ceiling made up of vertical strips Download PDF

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Publication number
EP3901387A1
EP3901387A1 EP21163889.5A EP21163889A EP3901387A1 EP 3901387 A1 EP3901387 A1 EP 3901387A1 EP 21163889 A EP21163889 A EP 21163889A EP 3901387 A1 EP3901387 A1 EP 3901387A1
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EP
European Patent Office
Prior art keywords
counter
plates
batten
ceiling
fixing
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EP21163889.5A
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German (de)
French (fr)
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EP3901387B1 (en
Inventor
Jean-Marc Laudescher
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Laudescher
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Laudescher
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • E04B9/36—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats
    • E04B9/363—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats the principal plane of the slats being horizontal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/12—Connections between non-parallel members of the supporting construction
    • E04B9/127—Connections between non-parallel members of the supporting construction one member being discontinuous and abutting against the other member

Definitions

  • the present invention relates to a method of manufacturing and implementing a false ceiling composed of vertical slats.
  • some ceilings are composed of strips parallel to each other, in order to improve the aesthetics of a room in which it would be mounted.
  • These slats which preferably extend vertically, can have constant or different lengths, and can be arranged in a structured or random manner within this ceiling, the main thing being that this ceiling embellishes the room.
  • a ceiling covers a flat and continuous ceiling permanently delimiting said room.
  • a method according to the invention makes it possible to produce a ceiling provided with vertical slats, while avoiding the drawbacks encountered in the state of the art.
  • the subject of the invention is a method of manufacture and use in a room of a ceiling comprising vertical slats.
  • the principle of a method according to the invention is first of all to set up the framework in its final location in a room in which the slatted ceiling will be installed, then to fix each of the counter-slats with their parallel slats, to the two lashing plates by means of two pins.
  • One pin is used to secure the counter-batten to one tie-down plate and the other pin is used to secure the counter-batten to the other plate.
  • the counterlaths therefore extend between the two lashing plates fixed to the two rails.
  • the framework formed by the rails and the lashing plates, once fixed in the part extends in a horizontal plane, and the slats of all the counterlaths extend vertically.
  • the slats of the same counterlattice can have equal lengths or different lengths, the length being their dimension considered along a vertical axis. It is assumed that each counterlath is brought against a lashing plate so as to match a second hole and a first hole, before proceeding to the introduction of the pin in the two superimposed holes.
  • the slats are made of wood, and the lashing plates and the rails are made of metal.
  • a framework comprises several pairs of two parallel rails each.
  • each rail is hollow and is delimited by two parallel walls connected by a connecting wall extending perpendicularly to said parallel walls, giving said rail a U-shaped profile.
  • the room in which the ceiling is mounted to slats represents a closed space delimited by a permanent and continuous ceiling, and the ceiling with vertical slats is placed under the permanent and continuous ceiling of said room.
  • each lashing plate extends along a rail, the step of securing each plate to a rail being performed by mechanical fixing.
  • This mechanical fixing can for example be carried out with screws and nuts, or rivets, or pins or clips. It is important that the connection between a lashing plate and a rail is robust and reliable so that it does not deteriorate over time.
  • each lashing plate extends over the entire length of the rail.
  • the width of the lashing plate is greater than that of the rail, so that said plate projects laterally from said rail.
  • the width of the plate is its dimension considered perpendicular to its length.
  • the step of securing each plate to a rail is carried out by means of screws and nuts.
  • These screws and nuts may constitute the main means of fixing the plate to the rail, or come in addition to another fixing means which may for example be clipping.
  • the step of fixing the framework to its predestined location in the room is carried out so as to place the plates in a horizontal plane and at the same altitude.
  • all the lashing plates are coplanar and can allow the counterlaths to be placed at the same height.
  • the step of fixing the framework to its predestined location in the room is carried out by positioning the rails above each plate so that they extend horizontally. .
  • each counter-batten is an elongated part, the step of fixing each counter-batten to the two plates secured to the two rails, being carried out by placing said counter-battens parallel to each other and so that they are s' each extend in a horizontal direction.
  • the counterlaths are horizontal, parallel to each other and at the same altitude.
  • the step of fixing each counter-strip to the two plates secured to the two rails is carried out by positioning the counter-strips perpendicular to the two plates.
  • the method comprises a step of producing a slot at each end of each counter-batten, the step of positioning each counter-batten between the two plates being carried out by means of the insertion of said plates. in said slots.
  • the two lashing plates act as guide elements for each counter-batten.
  • the ends of the counter-batten are placed at the level of the two plates so that they are introduced into the two slots.
  • the counter-batten is then moved along the two lashing plates by sliding along them to reach its fixing location along said two plates.
  • the method comprises a step of inserting a sound-absorbing material between the louvered ceiling and a permanent ceiling of the room placed above the latter.
  • the room in which the ceiling with vertical slats is intended to be fixed generally comprises a continuous permanent ceiling.
  • the ceiling with vertical slats is intended to be positioned under the permanent ceiling, leaving a free space with the latter. This free space will then be used to place a structure or a soundproofing material.
  • Another object of the invention is a ceiling produced using a method according to the invention.
  • the ceiling comprises a framework having at least two lashing plates and two rails, said plates being secured to said rails and extending in a horizontal plane, the ceiling further comprising a plurality of counter-slats each provided with several vertical slats, said counter-battens being parallel and extending in a horizontal direction, each counter-batten being fixed to the two plates by means of two pins.
  • a room 1 in which a ceiling 2 with vertical slats 3 according to the invention is intended to be fixed is delimited by a floor, by vertical walls 3 and by a permanent and continuous ceiling.
  • the ceiling 2 with vertical slats 3 is fixed under the permanent and continuous ceiling of the room 1, in order to hide the latter, and allow people moving in said room 1 to be able to look at this ceiling 2 with vertical slats 3.
  • a vertical slat ceiling aims to improve the aesthetics of the room 1 in which it is mounted.
  • the ceiling 2 with vertical slats 3 comprises a supporting structure 4 comprising a framework 5 including rails 6 and lashing plates 7, and spacers 8.
  • This supporting structure 4 once it has been installed in the room 1 under the permanent and continuous ceiling, extends in a horizontal plane.
  • the rails 6 are elongated and are preferably made of metal. They are delimited by two parallel side walls 9, 10 interconnected by a connecting wall 11 extending perpendicularly to said two side walls 9, 10. In this way, each rail 6 constitutes an elongated hollow part, the cross section of which has a U-shape. All the rails 6 of the frame 5 are preferably parallel. These rails 6 act as reinforcing elements intended to stiffen the supporting structure 4.
  • each rail 6 of the frame 5 is fixed a lashing plate 7 advantageously made of metal.
  • Each tie-down plate 7 is elongated and extends over the entire length of the rail 6. It has a width which is greater than that of the rail 6, so that it protrudes on each side of said rail 6.
  • Each plate of lashing 7 is fixed to a rail 6 for example by means of screws and nuts extending over the entire length of the rail 6 at regular intervals.
  • Each rail 6 is fixed to the lashing plate 7 by means of its wall link 11, which is found in contact with said lashing plate 7 while being parallel to the latter.
  • the parts of the lashing plate 7 projecting from each side of the rail 6 are each pierced with first through holes 12, regularly spaced along said plate 7.
  • These first holes 12 are arranged such that a first hole 12 of one of the two parts projecting from the rail 6, is always aligned with a first hole 12 of the other part along a transverse axis, which is perpendicular to a longitudinal axis of the lashing plate 7.
  • the ceiling 2 with vertical slats 3 comprises counter-slats 13 which are elongated pieces each supporting parallel slats 3.
  • Each slat 3 is preferably made of wood and has a parallelepiped shape.
  • the blades 3 are fixed to the counter-batten 13, for example by screwing or by clipping, being parallel to each other, and so that their longitudinal axes are perpendicular to a longitudinal axis of said counter-batten 13.
  • the slats 3 can be fixed at the same level or at different levels.
  • the slats 3 may have the same length or different lengths.
  • each counter-batten 13 has at each of its ends considered along a longitudinal axis of said counter-batten 13, a slot 14.
  • Each slot extends 14 along a longitudinal axis of counter-batten 13 and has a width which is slightly greater than the thickness of a lashing plate 7.
  • the two slots 14 of the same counter-batten 13 extend towards one another while being aligned along the same longitudinal axis of said counter-batten 13.
  • Each counter-batten 13 also has each of said counter-struts 13. ends, a second through hole 15, originating on an upper face 16 of said counter-batten 13 and opening into slot 14, said second hole extending perpendicularly to said slot 14.
  • each counter-batten 13 connects two consecutive and parallel lashing plates 7, extending perpendicularly thereto. More precisely, each counter-batten 13 is positioned relative to said two plates 7, so that each of said plates 7 is inserted into a slot 14 and so that each second hole 15 of said counter-batten 13 is superimposed on a first hole 12 of each plate stowage 7.
  • the attachment of the counter-batten 13 to the two stowage plates 7 is effected by inserting a pin 17 in each first hole 12 and each second hole 15 superimposed. In this way, two pins 17 are necessary to fix each counterlattice 13 to the two lashing plates 7 placed on either side of the counterlattice 13.
  • the counter-slats 13 are parallel to each other and extend horizontally while being perpendicular to the two lashing plates 7 to which they are fixed with the pins 17.
  • the spacers 8 are rigid rods, preferably made of metal and which extend perpendicularly to the rails 6. These spacers 8 are fixed to the rails 6 which they pass through, for example by screws and nuts, and make it possible to ensure structural cohesion to the supporting structure 4.
  • the ceiling 2 with vertical slats 3 is placed at a level lower than that of the permanent ceiling of the room 1 and with it leaves a free space. It may then be advantageous to insert a sound-absorbing structure or material into this space in order to reduce or even eliminate sound interference with vertical blades 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Residential Or Office Buildings (AREA)

Abstract

L'invention se rapporte à procédé de fabrication et de mise en œuvre d'un plafond (2) comportant des lames (3) verticales.The invention relates to a method of manufacturing and implementing a ceiling (2) comprising vertical slats (3).

Selon l'invention, le procédé comprend les étapes suivantes :
- une étape de réalisation d'une ossature (5) comprenant au moins deux rails (6) parallèles,
- une étape de solidarisation d'une plaque d'arrimage (7) dotée de premiers trous (12) à chaque rail (6),
- une étape de fixation de l'ossature (5) munie des plaques d'arrimage (7) à son endroit prédestiné dans une pièce (1),
- une étape d'élaboration de plusieurs contrelattes (13) dotées chacune de plusieurs lames (3) parallèles et possédant des deuxièmes trous (15),
- une étape de fixation de chaque contrelatte (13) aux deux plaques (7) solidarisées aux deux rails (6), au moyen de l'introduction de goupilles (17) dans les premiers (12) et les deuxièmes (15) trous.

Figure imgaf001
According to the invention, the method comprises the following steps:
- a step of producing a framework (5) comprising at least two parallel rails (6),
- a step of securing a lashing plate (7) provided with first holes (12) to each rail (6),
- a step of fixing the framework (5) provided with lashing plates (7) at its predestined location in a room (1),
- a step of developing several counterlaths (13) each provided with several parallel blades (3) and having second holes (15),
- A step of fixing each counter-batten (13) to the two plates (7) secured to the two rails (6), by means of the introduction of pins (17) in the first (12) and the second (15) holes.
Figure imgaf001

Description

La présente invention concerne un procédé de fabrication et de mise en œuvre d'un faux plafond composé de lames verticales.The present invention relates to a method of manufacturing and implementing a false ceiling composed of vertical slats.

En effet, certains plafonds sont composés de lames parallèles entre elles, dans le but d'améliorer l'esthétique d'une pièce dans laquelle il serait monté. Ces lames, qui s'étendent de façon préférentielle verticalement, peuvent avoir des longueurs constantes ou différentes, et peuvent être disposées de façon structurée ou aléatoire au sein de ce plafond, l'essentiel étant que ce plafond embellisse la pièce. Généralement, un tel plafond vient tapisser un plafond plan et continu délimitant de façon permanente ladite pièce.Indeed, some ceilings are composed of strips parallel to each other, in order to improve the aesthetics of a room in which it would be mounted. These slats, which preferably extend vertically, can have constant or different lengths, and can be arranged in a structured or random manner within this ceiling, the main thing being that this ceiling embellishes the room. Generally, such a ceiling covers a flat and continuous ceiling permanently delimiting said room.

Or, il s'avère que la structure de ce type de plafond est particulièrement lourde et qu'elle implique un grand nombre de pièces, dont le positionnement pour réaliser ladite structure est souvent long et difficile à mettre en place.However, it turns out that the structure of this type of ceiling is particularly heavy and that it involves a large number of parts, the positioning of which to achieve said structure is often long and difficult to set up.

Un procédé selon l'invention, permet de réaliser un plafond doté de lames verticales, en s'affranchissant des inconvénients rencontrés dans l'état de la technique.A method according to the invention makes it possible to produce a ceiling provided with vertical slats, while avoiding the drawbacks encountered in the state of the art.

L'invention a pour objet un procédé de fabrication et de mise en œuvre dans une pièce d'un plafond comportant des lames verticales.The subject of the invention is a method of manufacture and use in a room of a ceiling comprising vertical slats.

Selon l'invention, le procédé comprend les étapes suivantes :

  • une étape de réalisation d'une ossature comprenant au moins deux rails parallèles,
  • une étape de solidarisation d'une plaque d'arrimage dotée de premiers trous à chaque rail,
  • une étape de fixation de l'ossature munie des plaques d'arrimage à son endroit prédestiné dans la pièce,
  • une étape d'élaboration de plusieurs contrelattes dotées chacune de plusieurs lames parallèles et possédant des deuxièmes trous,
  • une étape de positionnement de chaque contrelatte entre les deux plaques d'arrimage de façon à superposer un deuxième trou de la contrelatte avec un
According to the invention, the method comprises the following steps:
  • a step of producing a framework comprising at least two parallel rails,
  • a step of securing a lashing plate with first holes to each rail,
  • a step of fixing the framework provided with the lashing plates at its predestined place in the room,
  • a step of developing several counterlaths each equipped with several parallel blades and having second holes,
  • a step of positioning each counter-batten between the two lashing plates so as to superimpose a second hole in the counter-batten with a

premier trou de chaque plaque d'arrimage, -une étape de fixation de chaque contrelatte aux deux plaques, au moyen de l'introduction de deux goupilles dans les premiers et les deuxièmes trous superposés.first hole of each tie-down plate, -a step of fixing each counter-batten to the two plates, by means of the introduction of two pins in the first and the second superimposed holes.

Le principe d'un procédé selon l'invention est d'abord de mettre en place l'ossature à son emplacement définitif dans une pièce dans laquelle va être installé le plafond à lames, puis de fixer chacune des contrelattes dotées de leurs lames parallèles, aux deux plaques d'arrimage au moyen de deux goupilles. Une goupille sert à fixer la contrelatte à une plaque d'arrimage et l'autre goupille sert à fixer la contrelatte à l'autre plaque. Les contrelattes s'étendent donc entre les deux plaques d'arrimage fixées aux deux rails. Préférentiellement l'ossature constituée par les rails et les plaques d'arrimage, une fois fixée dans la pièce, s'étend dans un plan horizontal, et les lames de toutes les contrelattes s'étendent verticalement. Les lames d'une même contrelatte peuvent avoir des longueurs égales ou des longueurs différentes, la longueur étant leur dimension considéré suivant un axe vertical. Il est supposé que chaque contrelatte est amenée contre une plaque d'arrimage de façon à faire correspondre un deuxième trou et un premier trou, avant de procéder à l'introduction de la goupille dans les deux trous superposés. Avantageusement, les lames sont en bois, et les plaques d'arrimage et les rails sont en métal. Avantageusement, une ossature comprend plusieurs paires de deux rails parallèles chacune. De façon préférentielle, chaque rail est creux et est délimité par deux parois parallèles reliée par une paroi de liaison s'étendant perpendiculairement auxdites parois parallèles, conférant audit rail un profil en forme de U. Préférentiellement, la pièce dans laquelle est monté le plafond à lames, représente un espace clôt délimité par un plafond permanent et continu, et le plafond à lames verticales vient se placer sous le plafond permanent et continu de ladite pièce.The principle of a method according to the invention is first of all to set up the framework in its final location in a room in which the slatted ceiling will be installed, then to fix each of the counter-slats with their parallel slats, to the two lashing plates by means of two pins. One pin is used to secure the counter-batten to one tie-down plate and the other pin is used to secure the counter-batten to the other plate. The counterlaths therefore extend between the two lashing plates fixed to the two rails. Preferably, the framework formed by the rails and the lashing plates, once fixed in the part, extends in a horizontal plane, and the slats of all the counterlaths extend vertically. The slats of the same counterlattice can have equal lengths or different lengths, the length being their dimension considered along a vertical axis. It is assumed that each counterlath is brought against a lashing plate so as to match a second hole and a first hole, before proceeding to the introduction of the pin in the two superimposed holes. Advantageously, the slats are made of wood, and the lashing plates and the rails are made of metal. Advantageously, a framework comprises several pairs of two parallel rails each. Preferably, each rail is hollow and is delimited by two parallel walls connected by a connecting wall extending perpendicularly to said parallel walls, giving said rail a U-shaped profile. Preferably, the room in which the ceiling is mounted to slats, represents a closed space delimited by a permanent and continuous ceiling, and the ceiling with vertical slats is placed under the permanent and continuous ceiling of said room.

Selon une caractéristique possible de l'invention, chaque plaque d'arrimage s'étend le long d'un rail, l'étape de solidarisation de chaque plaque à un rail s'effectuant par fixation mécanique. Cette fixation mécanique peut par exemple s'effectuer avec des vis et des écrous, ou des rivets, ou des goupilles ou des clips. Il est important que la liaison entre une plaque d'arrimage et un rail soit robuste et fiable afin qu'elle ne se dégrade pas dans le temps.According to one possible characteristic of the invention, each lashing plate extends along a rail, the step of securing each plate to a rail being performed by mechanical fixing. This mechanical fixing can for example be carried out with screws and nuts, or rivets, or pins or clips. It is important that the connection between a lashing plate and a rail is robust and reliable so that it does not deteriorate over time.

Avantageusement, chaque plaque d'arrimage s'étend sur toute la longueur du rail. Préférentiellement, la largeur de la plaque d'arrimage est supérieure à celle du rail, si bien que ladite plaque déborde latéralement dudit rail. La largeur de la plaque est sa dimension considérée perpendiculairement à sa longueur.Advantageously, each lashing plate extends over the entire length of the rail. Preferably, the width of the lashing plate is greater than that of the rail, so that said plate projects laterally from said rail. The width of the plate is its dimension considered perpendicular to its length.

Selon une caractéristique possible de l'invention, l'étape de solidarisation de chaque plaque à un rail s'effectue aux moyens de vis et d'écrous. Ces vis et écrous peuvent constituer le moyen de fixation principal de la plaque au rail, ou venir en complément d'un autre moyen de fixation pouvant par exemple être un clippage.According to one possible characteristic of the invention, the step of securing each plate to a rail is carried out by means of screws and nuts. These screws and nuts may constitute the main means of fixing the plate to the rail, or come in addition to another fixing means which may for example be clipping.

Selon une caractéristique possible de l'invention, l'étape de fixation de l'ossature à son endroit prédestiné dans la pièce, s'effectue de manière à placer les plaques dans un plan horizontal et à la même altitude. De cette manière, toutes les plaques d'arrimage sont coplanaires et peuvent permettre de placer les contrelattes à la même hauteur.According to one possible characteristic of the invention, the step of fixing the framework to its predestined location in the room, is carried out so as to place the plates in a horizontal plane and at the same altitude. In this way, all the lashing plates are coplanar and can allow the counterlaths to be placed at the same height.

Selon une caractéristique possible de l'invention, l'étape de fixation de l'ossature à son endroit prédestiné dans la pièce, s'effectue en positionnant les rails au-dessus de chaque plaque de façon à ce qu'ils s'étendent horizontalement.According to a possible characteristic of the invention, the step of fixing the framework to its predestined location in the room, is carried out by positioning the rails above each plate so that they extend horizontally. .

Selon une caractéristique possible de l'invention, chaque contrelatte est une pièce allongée, l'étape de fixation de chaque contrelatte aux deux plaques solidarisées aux deux rails, s'effectuant en plaçant lesdites contrelattes parallèles entre elles et de sorte qu'elles s'étendent chacune dans une direction horizontale. De façon préférentielle, les contrelattes sont horizontales, parallèles entre elles et à la même altitude.According to a possible characteristic of the invention, each counter-batten is an elongated part, the step of fixing each counter-batten to the two plates secured to the two rails, being carried out by placing said counter-battens parallel to each other and so that they are s' each extend in a horizontal direction. Preferably, the counterlaths are horizontal, parallel to each other and at the same altitude.

Selon une caractéristique possible de l'invention, l'étape de fixation de chaque contrelatte aux deux plaques solidarisées aux deux rails s'effectue en positionnant les contrelattes perpendiculairement aux deux plaques.According to one possible characteristic of the invention, the step of fixing each counter-strip to the two plates secured to the two rails is carried out by positioning the counter-strips perpendicular to the two plates.

Selon une caractéristique possible de l'invention, le procédé comprend une étape de réalisation d'une fente à chaque extrémité de chaque contrelatte, l'étape de positionnement de chaque contrelatte entre les deux plaques s'effectuant au moyen de l'insertion desdites plaques dans lesdites fentes. De cette manière, les deux plaques d'arrimage jouent le rôle d'éléments de guidage pour chaque contrelatte. En effet, les extrémités de la contrelatte sont placées au niveau des deux plaques de manière à ce que celles-ci soient introduites dans les deux fentes. Généralement, la contrelatte est ensuite déplacée le long des deux plaques d'arrimage en coulissant le long de celles-ci pour parvenir à son emplacement de fixation le long desdites deux plaques.According to a possible characteristic of the invention, the method comprises a step of producing a slot at each end of each counter-batten, the step of positioning each counter-batten between the two plates being carried out by means of the insertion of said plates. in said slots. In this way, the two lashing plates act as guide elements for each counter-batten. Indeed, the ends of the counter-batten are placed at the level of the two plates so that they are introduced into the two slots. Generally, the counter-batten is then moved along the two lashing plates by sliding along them to reach its fixing location along said two plates.

Selon une caractéristique possible de l'invention, le procédé comprend une étape d'insertion d'un matériau insonorisant entre le plafond à lames et un plafond permanent de la pièce placé au-dessus de celui-ci. En effet, la pièce dans laquelle est destiné à venir se fixer le plafond à lames verticales comprend généralement un plafond permanent continu. Le plafond à lames verticales est destiné à venir se positionner sous le plafond permanent, en ménageant avec celui-ci un espace libre. Cet espace libre va alors servir à placer une structure ou un matériau insonorisant.According to one possible characteristic of the invention, the method comprises a step of inserting a sound-absorbing material between the louvered ceiling and a permanent ceiling of the room placed above the latter. Indeed, the room in which the ceiling with vertical slats is intended to be fixed generally comprises a continuous permanent ceiling. The ceiling with vertical slats is intended to be positioned under the permanent ceiling, leaving a free space with the latter. This free space will then be used to place a structure or a soundproofing material.

L'invention a pour autre objet, un plafond réalisé à partir d'un procédé selon l'invention.Another object of the invention is a ceiling produced using a method according to the invention.

Selon l'invention, le plafond comprend une ossature possédant au moins deux plaques d'arrimage et deux rails, lesdites plaques étant solidarisée auxdits rails et s'étendant dans un plan horizontal, le plafond comprenant en outre une pluralité de contrelattes munies chacune de plusieurs lames verticales, lesdites contrelattes étant parallèles et s'étendant dans une direction horizontale, chaque contrelatte étant fixée aux deux plaques au moyen de deux goupilles.According to the invention, the ceiling comprises a framework having at least two lashing plates and two rails, said plates being secured to said rails and extending in a horizontal plane, the ceiling further comprising a plurality of counter-slats each provided with several vertical slats, said counter-battens being parallel and extending in a horizontal direction, each counter-batten being fixed to the two plates by means of two pins.

On donne ci-après une description détaillée d'un mode de réalisation préféré d'un procédé selon l'invention et d'un plafond selon l'invention en se référant aux figures suivantes :

  • [Fig. 1] représente une vue en perspective d'un plafond à lames verticales selon l'invention,
  • [Fig. 2] représente une vue en perspective d'une structure porteuse et de plusieurs contrelattes d'un plafond selon l'invention,
  • [Fig. 3] représente une vue en perspective d'une ossature et d'une extrémité d'une contrelatte d'un plafond selon l'invention,
  • [Fig. 4] représente une vue en perspective d'une zone d'interaction entre une contrelatte et l'ossature d'un plafond selon l'invention.
A detailed description is given below of a preferred embodiment of a method according to the invention and of a ceiling according to the invention with reference to the following figures:
  • [ Fig. 1 ] shows a perspective view of a ceiling with vertical slats according to the invention,
  • [ Fig. 2 ] represents a perspective view of a supporting structure and of several counterlaths of a ceiling according to the invention,
  • [ Fig. 3 ] represents a perspective view of a framework and of one end of a counter-lath of a ceiling according to the invention,
  • [ Fig. 4 ] represents a perspective view of an interaction zone between a counter-batten and the framework of a ceiling according to the invention.

En se référant à la figure 1, une pièce 1 dans laquelle est destiné à venir se fixer un plafond 2 à lames verticales 3 selon l'invention, est délimité par un sol, par des murs 3 verticaux et par un plafond permanent et continu. Le plafond 2 à lames verticales 3 vient se fixer sous le plafond permanent et continu de la pièce 1, afin de masquer celui-ci, et permettre à des personnes évoluant dans ladite pièce 1 de pouvoir regarder ce plafond 2 à lames verticales 3. Un plafond à lames verticales a pour but d'améliorer l'esthétique de la pièce 1 dans laquelle il est monté.With reference to the figure 1 , a room 1 in which a ceiling 2 with vertical slats 3 according to the invention is intended to be fixed, is delimited by a floor, by vertical walls 3 and by a permanent and continuous ceiling. The ceiling 2 with vertical slats 3 is fixed under the permanent and continuous ceiling of the room 1, in order to hide the latter, and allow people moving in said room 1 to be able to look at this ceiling 2 with vertical slats 3. A vertical slat ceiling aims to improve the aesthetics of the room 1 in which it is mounted.

En se référant à la figure 2, le plafond 2 à lames verticales 3 comprend une structure porteuse 4 comportant une ossature 5 incluant des rails 6 et des plaques d'arrimage 7, et des entretoises 8. Cette structure porteuse 4 une fois qu'elle a été installée dans la pièce 1 sous le plafond permanent et continu, s'étend dans un plan horizontal.With reference to the figure 2 , the ceiling 2 with vertical slats 3 comprises a supporting structure 4 comprising a framework 5 including rails 6 and lashing plates 7, and spacers 8. This supporting structure 4 once it has been installed in the room 1 under the permanent and continuous ceiling, extends in a horizontal plane.

En se référant aux figures 2 et 4, les rails 6 sont allongés et sont préférentiellement réalisés en métal. Ils sont délimités par deux parois latérales parallèles 9, 10 reliées entre elles par une paroi de liaison 11 s'étendant perpendiculairement auxdites deux parois latérales 9, 10. De cette manière, chaque rail 6 constitue une pièce creuse allongée, dont la section transversale a une forme en U. Tous les rails 6 de l'ossature 5 sont préférentiellement parallèles. Ces rails 6 agissent comme des éléments de renforcement destinés à rigidifier la structure porteuse 4.With reference to figures 2 and 4 , the rails 6 are elongated and are preferably made of metal. They are delimited by two parallel side walls 9, 10 interconnected by a connecting wall 11 extending perpendicularly to said two side walls 9, 10. In this way, each rail 6 constitutes an elongated hollow part, the cross section of which has a U-shape. All the rails 6 of the frame 5 are preferably parallel. These rails 6 act as reinforcing elements intended to stiffen the supporting structure 4.

En se référant aux figures 2, 3 et 4, à chaque rail 6 de l'ossature 5 est fixée une plaque d'arrimage 7 avantageusement réalisée en métal. Chaque plaque d'arrimage 7 est allongée et s'étend sur toute la longueur du rail 6. Elle présente une largeur qui est supérieure à celle du rail 6, si bien qu'elle déborde de chaque côté dudit rail 6. Chaque plaque d'arrimage 7 est fixée à un rail 6 par exemple au moyen de vis et d'écrous s'échelonnant sur toute la longueur du rail 6 à intervalles réguliers. Lorsque la structure porteuse 4 est installée dans sa position opérationnelle dans la pièce 1, chaque plaque d'arrimage 7 s'étend horizontalement en étant placée sous le rail 6, ledit rail 6 supportant ladite plaque d'arrimage 7. Le rail 6 est centré sur la plaque d'arrimage 7, si bien que ladite plaque d'arrimage 7 déborde de chaque côté du rail 6 avec la même amplitude. Chaque rail 6 est fixé à la plaque d'arrimage 7 par l'intermédiaire de sa paroi de liaison 11, qui se retrouve au contact de ladite plaque d'arrimage 7 en étant parallèle à celle-ci.With reference to figures 2 , 3 and 4 , to each rail 6 of the frame 5 is fixed a lashing plate 7 advantageously made of metal. Each tie-down plate 7 is elongated and extends over the entire length of the rail 6. It has a width which is greater than that of the rail 6, so that it protrudes on each side of said rail 6. Each plate of lashing 7 is fixed to a rail 6 for example by means of screws and nuts extending over the entire length of the rail 6 at regular intervals. When the supporting structure 4 is installed in its operational position in the part 1, each lashing plate 7 extends horizontally by being placed under the rail 6, said rail 6 supporting said lashing plate 7. The rail 6 is centered. on the lashing plate 7, so that said lashing plate 7 protrudes on each side of the rail 6 with the same amplitude. Each rail 6 is fixed to the lashing plate 7 by means of its wall link 11, which is found in contact with said lashing plate 7 while being parallel to the latter.

En se référant aux figures 3 et 4, les parties de la plaque d'arrimage 7 débordant de chaque côté du rail 6 sont chacune percées de premiers trous 12 traversants, régulièrement espacés le long de ladite plaque 7. Ces premiers trous 12 sont disposés de telle sorte qu'un premier trou 12 de l'une des deux parties débordant du rail 6, est toujours alignés sur un premier trou 12 de l'autre partie suivant un axe transversal, qui est perpendiculaire à un axe longitudinal de la plaque d'arrimage 7.With reference to figures 3 and 4 , the parts of the lashing plate 7 projecting from each side of the rail 6 are each pierced with first through holes 12, regularly spaced along said plate 7. These first holes 12 are arranged such that a first hole 12 of one of the two parts projecting from the rail 6, is always aligned with a first hole 12 of the other part along a transverse axis, which is perpendicular to a longitudinal axis of the lashing plate 7.

En se référant aux figures 2 et 4, le plafond 2 à lames verticales 3 comprend des contrelattes 13 qui sont des pièces allongées supportant chacune des lames parallèles 3. Chaque lame 3 est préférentiellement réalisée en bois et a une forme parallélépipédique. Les lames 3 sont fixées à la contrelatte 13 par exemple par vissage ou par clippage, en étant parallèles les unes aux autres, et de sorte que leurs axes longitudinaux soient perpendiculaires à un axe longitudinal de ladite contrelatte 13. Lorsque la structure porteuse 4 est installée dans sa position opérationnelle dans la pièce 1, les contrelattes 13 s'étendent horizontalement et les lames s'étendent verticalement. Au sein d'une même contrelatte 13, les lames 3 peuvent être fixées au même niveau ou à des niveaux différents. De même, au sein d'une même contrelatte 13, les lames 3 peuvent avoir la même longueur ou des longueurs différentes.With reference to figures 2 and 4 , the ceiling 2 with vertical slats 3 comprises counter-slats 13 which are elongated pieces each supporting parallel slats 3. Each slat 3 is preferably made of wood and has a parallelepiped shape. The blades 3 are fixed to the counter-batten 13, for example by screwing or by clipping, being parallel to each other, and so that their longitudinal axes are perpendicular to a longitudinal axis of said counter-batten 13. When the supporting structure 4 is installed in its operational position in part 1, the counterlaths 13 extend horizontally and the blades extend vertically. Within the same counterlattice 13, the slats 3 can be fixed at the same level or at different levels. Likewise, within the same counterlattice 13, the slats 3 may have the same length or different lengths.

En se référant aux figures 3 et 4, chaque contrelatte 13 présente à chacune de ses extrémités considérées suivant un axe longitudinal de ladite contrelatte 13, une fente 14. Chaque fente s'étend 14 suivant un axe longitudinal de la contrelatte 13 et possède une largeur qui est légèrement supérieure à l'épaisseur d'une plaque d'arrimage 7. Les deux fentes 14 d'une même contrelatte 13 s'étendent l'une vers l'autre en étant alignées suivant le même axe longitudinal de ladite contrelatte 13. Chaque contrelatte 13 possède également à chacune desdites extrémités, un deuxième trou 15 traversant, prenant naissance sur une face supérieure 16 de ladite contrelatte 13 et débouchant dans la fente 14, ledit deuxième trou s'étendant perpendiculairement à ladite fente 14.With reference to figures 3 and 4 , each counter-batten 13 has at each of its ends considered along a longitudinal axis of said counter-batten 13, a slot 14. Each slot extends 14 along a longitudinal axis of counter-batten 13 and has a width which is slightly greater than the thickness of a lashing plate 7. The two slots 14 of the same counter-batten 13 extend towards one another while being aligned along the same longitudinal axis of said counter-batten 13. Each counter-batten 13 also has each of said counter-struts 13. ends, a second through hole 15, originating on an upper face 16 of said counter-batten 13 and opening into slot 14, said second hole extending perpendicularly to said slot 14.

En se référant aux figures 2 et 4, chaque contrelatte 13 relie deux plaques d'arrimage 7 consécutives et parallèles, en s'étendant perpendiculairement à celles-ci. Plus précisément, chaque contrelatte 13 est positionnée par rapport auxdites deux plaques 7, de sorte que chacune desdites plaques 7 soit insérée dans une fente 14 et de sorte que chaque deuxième trou 15 de ladite contrelatte 13 soit superposé à un premier trou 12 de chaque plaque d'arrimage 7. La fixation de la contrelatte 13 aux deux plaques d'arrimage 7 s'effectue au moyen de l'insertion d'une goupille 17 dans chaque premier trou 12 et chaque deuxième trou 15 superposés. De cette manière, deux goupilles 17 sont nécessaires pour fixer chaque contrelatte 13 aux deux plaques d'arrimage 7 placées de part et d'autre de la contrelatte 13.With reference to figures 2 and 4 , each counter-batten 13 connects two consecutive and parallel lashing plates 7, extending perpendicularly thereto. More precisely, each counter-batten 13 is positioned relative to said two plates 7, so that each of said plates 7 is inserted into a slot 14 and so that each second hole 15 of said counter-batten 13 is superimposed on a first hole 12 of each plate stowage 7. The attachment of the counter-batten 13 to the two stowage plates 7 is effected by inserting a pin 17 in each first hole 12 and each second hole 15 superimposed. In this way, two pins 17 are necessary to fix each counterlattice 13 to the two lashing plates 7 placed on either side of the counterlattice 13.

En se référant à la figure 2, les contrelattes 13 sont parallèles entre elles et s'étendent horizontalement en étant perpendiculaires aux deux plaques d'arrimage 7 auxquelles elles sont fixées avec les goupilles 17.With reference to the figure 2 , the counter-slats 13 are parallel to each other and extend horizontally while being perpendicular to the two lashing plates 7 to which they are fixed with the pins 17.

En se référant aux figures 2 et 3, les entretoises 8 sont des tiges rigides, préférentiellement réalisées en métal et qui s'étendent perpendiculairement aux rails 6. Ces entretoises 8 sont fixées aux rails 6 qu'elles traversent, par exemple par des vis et des écrous, et permettent d'assurer une cohésion structurelle à la structure porteuse 4.With reference to figures 2 and 3 , the spacers 8 are rigid rods, preferably made of metal and which extend perpendicularly to the rails 6. These spacers 8 are fixed to the rails 6 which they pass through, for example by screws and nuts, and make it possible to ensure structural cohesion to the supporting structure 4.

Un procédé de fabrication et de mise en oeuvre d'un plafond 2 comportant des lames verticales 3 selon l'invention, comprend les étapes suivantes :

  • une étape de fixation de la structure porteuse 4 à son endroit prédestiné dans la pièce 1, sous le plafond permanent et continu de la dite pièce 1,
  • une étape de placement d'une contrelatte 13 entre deux plaques d'arrimage 7 de manière à ce que chacune desdites plaques 7 soit insérée dans une fente 14 de ladite contrelatte 13,
  • une étape de coulissement de la contrelatte 13 le long des deux plaques 7 jusqu'à son emplacement de fixation sur lesdites plaques 7,
  • une étape de superposition de chaque deuxième trou 15 de la contrelatte 13 avec un premier trou 12 de chaque plaque d'arrimage 7,
  • une étape de fixation de la contrelatte 13 aux deux plaques d'arrimage 7 au moyen de l'insertion d'une goupille 17 dans chaque premier trou 12 et deuxième trou 15 superposés.
A method of manufacturing and using a ceiling 2 comprising vertical slats 3 according to the invention, comprises the following steps:
  • a step of fixing the supporting structure 4 to its predestined location in room 1, under the permanent and continuous ceiling of said room 1,
  • a step of placing a counter-batten 13 between two lashing plates 7 so that each of said plates 7 is inserted into a slot 14 of said counter-batten 13,
  • a step of sliding the counter-batten 13 along the two plates 7 to its location for fixing to said plates 7,
  • a step of superimposing each second hole 15 of the counter-batten 13 with a first hole 12 of each lashing plate 7,
  • a step of fixing the counter-batten 13 to the two lashing plates 7 by means of the insertion of a pin 17 in each superimposed first hole 12 and second hole 15.

L'opération se répète pour chaque contrelatte 13 à monter pour élaborer le plafond à lames verticales 3.The operation is repeated for each counter-batten 13 to be mounted to produce the ceiling with vertical louvers 3.

Généralement, la plafond 2 à lames verticales 3 est placé à un niveau inférieur à celui du plafond permanent de la pièce 1 et ménage avec celui-ci un espace libre. Il peut alors être avantageux d'insérer dans cet espace une structure ou un matériau insonorisant pour réduire voire éliminer les interférences sono2 à lames verticales 3.Generally, the ceiling 2 with vertical slats 3 is placed at a level lower than that of the permanent ceiling of the room 1 and with it leaves a free space. It may then be advantageous to insert a sound-absorbing structure or material into this space in order to reduce or even eliminate sound interference with vertical blades 3.

Claims (10)

Procédé de fabrication et de mise en œuvre dans une pièce (1) d'un plafond (2) comportant des lames (3) verticales, caractérisé en ce qu'il comprend les étapes suivantes : - une étape de réalisation d'une ossature (5) comprenant au moins deux rails (6) parallèles, - une étape de solidarisation d'une plaque d'arrimage (7) dotée de premiers trous (12) à chaque rail (6), - une étape de fixation de l'ossature (5) munie des plaques d'arrimage (7) à son endroit prédestiné dans la pièce (1), - une étape d'élaboration de plusieurs contrelattes (13) dotées chacune de plusieurs lames (3) parallèles et possédant des deuxièmes trous (15), - une étape de positionnement de chaque contrelatte (13) entre les deux plaques d'arrimage (7) de façon à superposer un deuxième trou (15) de la contrelatte (13) avec un premier trou (12) de chaque plaque d'arrimage (7), - une étape de fixation de chaque contrelatte (13) aux deux plaques (7), au moyen de l'introduction de deux goupilles (17) dans les premiers (12) et les deuxièmes (15) trous superposés. Method of manufacturing and implementing in a room (1) a ceiling (2) comprising vertical slats (3), characterized in that it comprises the following steps: - a step of producing a framework (5) comprising at least two parallel rails (6), - a step of securing a lashing plate (7) provided with first holes (12) to each rail (6), - a step of fixing the framework (5) provided with lashing plates (7) at its predestined location in the room (1), - a step of developing several counterlaths (13) each provided with several parallel blades (3) and having second holes (15), - a step of positioning each counter-batten (13) between the two tie-down plates (7) so as to superimpose a second hole (15) of the counter-batten (13) with a first hole (12) of each tie-down plate (7), - a step of fixing each counter-batten (13) to the two plates (7), by means of the introduction of two pins (17) in the first (12) and the second (15) superimposed holes. Procédé selon la revendication 1, caractérisé en ce que chaque plaque d'arrimage (7) s'étend le long d'un rail (6), et en ce que l'étape de solidarisation de chaque plaque (7) à un rail (6) s'effectue par fixation mécanique.Method according to Claim 1, characterized in that each lashing plate (7) extends along a rail (6), and in that the step of securing each plate (7) to a rail ( 6) is carried out by mechanical fixing. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que l'étape de solidarisation de chaque plaque (7) à un rail (6) s'effectue aux moyens de vis et d'écrous.Method according to any one of Claims 1 or 2, characterized in that the step of securing each plate (7) to a rail (6) is carried out by means of screws and nuts. Procédé selon l'une quelconque des revendication 1 à 3, caractérisé en ce que l'étape de fixation de l'ossature (5) à son endroit prédestiné dans la pièce (1), s'effectue de manière à placer les plaques (7) dans un plan horizontal et à la même altitude.Method according to any one of claims 1 to 3, characterized in that the step of fixing the framework (5) to its predestined location in the part (1), is carried out so as to place the plates (7 ) in a horizontal plane and at the same altitude. Procédé selon l'une quelconque des revendication 1 à 4, caractérisé en ce que l'étape de fixation de l'ossature (5) à son endroit prédestiné dans la pièce (1), s'effectue en positionnant les rails (6) au-dessus de chaque plaque (7) de façon à ce qu'ils s'étendent horizontalement.Method according to any one of claims 1 to 4, characterized in that the step of fixing the framework (5) at its location predestined in the room (1), is carried out by positioning the rails (6) above each plate (7) so that they extend horizontally. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que chaque contrelatte (13) est une pièce allongée, et en ce que l'étape de fixation de chaque contrelatte (13) aux deux plaques (7) solidarisées aux deux rails (6), s'effectue en plaçant lesdites contrelattes (13) parallèles entre elles et de sorte qu'elles s'étendent chacune dans une direction horizontale.Method according to any one of claims 1 to 5, characterized in that each counter-batten (13) is an elongated piece, and in that the step of fixing each counter-batten (13) to the two plates (7) secured to the two rails (6), is carried out by placing said counterlaths (13) parallel to each other and so that they each extend in a horizontal direction. Procédé selon la revendication 6, caractérisé en ce que l'étape de fixation de chaque contrelatte (13) aux deux plaques (7) solidarisées aux deux rails (6) s'effectue en positionnant les contrelattes (13) perpendiculairement aux deux plaques (7).Method according to Claim 6, characterized in that the step of fixing each counter-batten (13) to the two plates (7) secured to the two rails (6) is carried out by positioning the counter-battens (13) perpendicular to the two plates (7). ). Procédé selon l'une quelconque des revendications 6 ou 7, caractérisé en ce qu'il comprend une étape de réalisation d'une fente (14) à chaque extrémité de chaque contrelatte (13), et en ce que l'étape de positionnement de chaque contrelatte (13) entre les deux plaques (7) s'effectue au moyen de l'insertion desdites plaques (7) dans lesdites fentes (14).Method according to any one of claims 6 or 7, characterized in that it comprises a step of making a slot (14) at each end of each counter-batten (13), and in that the step of positioning each mat (13) between the two plates (7) is effected by means of the insertion of said plates (7) in said slots (14). Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il comprend une étape d'insertion d'un matériau insonorisant entre le plafond (2) à lames (3) et un plafond permanent de la pièce (1) placé au-dessus de celui-ci.Method according to any one of claims 1 to 8, characterized in that it comprises a step of inserting a sound-absorbing material between the ceiling (2) with slats (3) and a permanent ceiling of the room (1) placed above it. Plafond (2) réalisé à partir d'un procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il comprend une ossature (5) possédant au moins deux plaques d'arrimage (7) et deux rails (6), lesdites plaques (7) étant solidarisée auxdits rails (6) et s'étendant dans un plan horizontal, et en ce qu'il comprend une pluralités de contrelattes (13) munies chacune de plusieurs lames (3) verticales, lesdites contrelattes (13) étant parallèles et s'étendant dans une direction horizontale, chaque contrelatte (13) étant fixée aux deux plaques (7) au moyen de deux goupilles (17).Ceiling (2) produced using a method according to any one of claims 1 to 9, characterized in that it comprises a framework (5) having at least two lashing plates (7) and two rails (6 ), said plates (7) being secured to said rails (6) and extending in a horizontal plane, and in that it comprises a plurality of counter-slats (13) each provided with several vertical slats (3), said counter-slats ( 13) being parallel and extending in a horizontal direction, each counter-batten (13) being fixed to the two plates (7) by means of two pins (17).
EP21163889.5A 2020-04-22 2021-03-22 Method for manufacturing and implementing a suspended ceiling made up of vertical strips Active EP3901387B1 (en)

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FR2004008A FR3109594B1 (en) 2020-04-22 2020-04-22 method of manufacturing and implementing a false ceiling composed of vertical blades

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US20230025771A1 (en) * 2020-03-25 2023-01-26 Armstrong World Industries, Inc. Ceiling system

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Publication number Priority date Publication date Assignee Title
US3006019A (en) * 1956-07-20 1961-10-31 Charles U Deaton Overhead illuminator grids
CN106149948B (en) * 2015-04-16 2019-05-21 北新集团建材股份有限公司 A kind of sound-absorbing ceiling suspension system
US20190161966A1 (en) * 2017-11-29 2019-05-30 Armstrong World Industries, Inc. End cap for ceiling panel and ceiling system incoporating the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006019A (en) * 1956-07-20 1961-10-31 Charles U Deaton Overhead illuminator grids
CN106149948B (en) * 2015-04-16 2019-05-21 北新集团建材股份有限公司 A kind of sound-absorbing ceiling suspension system
US20190161966A1 (en) * 2017-11-29 2019-05-30 Armstrong World Industries, Inc. End cap for ceiling panel and ceiling system incoporating the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230025771A1 (en) * 2020-03-25 2023-01-26 Armstrong World Industries, Inc. Ceiling system
US11946249B2 (en) * 2020-03-25 2024-04-02 Awi Licensing Llc Ceiling system

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FR3109594A1 (en) 2021-10-29
FR3109594B1 (en) 2022-05-06
EP3901387B1 (en) 2023-05-31

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