EP3162977B1 - Dachfenster mit erhobenem flügel, insbesondere mit rauchabzug funktion - Google Patents

Dachfenster mit erhobenem flügel, insbesondere mit rauchabzug funktion Download PDF

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Publication number
EP3162977B1
EP3162977B1 EP16196247.7A EP16196247A EP3162977B1 EP 3162977 B1 EP3162977 B1 EP 3162977B1 EP 16196247 A EP16196247 A EP 16196247A EP 3162977 B1 EP3162977 B1 EP 3162977B1
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EP
European Patent Office
Prior art keywords
leaf
frame
rotary
bracket
skylight
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Active
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EP16196247.7A
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German (de)
English (en)
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EP3162977A1 (fr
Inventor
Tomasz Dziurzynski
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Fakro PP Sp zoo
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Fakro PP Sp zoo
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Publication of EP3162977A1 publication Critical patent/EP3162977A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts
    • E04D13/0358—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts the parts moving, in their own plane, e.g. rolling or sliding, or moving in parallel planes with or without an additional movement, e.g. both pivoting and rolling or sliding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
    • E05D15/42—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and horizontally-sliding guides

Definitions

  • the present invention relates to a roof skylight according to claim 1 that can be used to transmit outside natural light into building interiors, which, apart from its interior illumination function, additionally can have a smoke removal function and may serve as ventilation or exhaust.
  • the smoke removal function of the skylight is required in many industrial and public buildings and is characterized by largest possible opening or displacement of the leaf from the frame in order to facilitate the flow of the smoke to the outside of the building.
  • the leaf is generally held in two positions: closed and open.
  • skylights intended for use in flat roofs i.e. horizontal or low pitch roofs, comprising a frame and a moveable relative to the frame, leaf.
  • a convex dome or a flat glazing, e.g. insulated glass unit may form the outer layer of the leaf.
  • the movement of the leaf takes place through linear raising of the leaf generally orthogonally to the plane of the frame, which in case of a horizontal roof simultaneously constitutes vertical movement.
  • the frame and the leaf have four sides and the orthogonal movement of the leaf is achieved via guiding mechanisms and drives which hold the leaf and the frame in varied distances relative to each other in a generally parallel position, i.e. with no change in mutual angular position.
  • a skylight with a lightweight design is known from patent EP0979333 B1 ; it consists of a frame installed in the roof structure and a leaf orthogonally moveable relative to the frame.
  • the frame and the leaf have four sides and the orthogonal movement of the leaf is achieved via a single leaf raising mechanism located in the middle of the span of the skylight.
  • This solution may be used for lightweight designs of the leaf, with no high forces projected to act in the plane of the leaf. When the leaf is in the open position and the wind is strong there is a risk that it may be damaged, particularly if the force acts orthogonally to the plane in which the scissor mechanism operates. Moreover, there is no possibility to hide or camouflage mechanical elements, which reduces aesthetic value of the solution.
  • a skylight consisting of a frame and a leaf moveable orthogonally relative to the frame is known from patent EP2385184 B1 , where the frame and the leaf have 4 sides and the orthogonal movement of the leaf is achieved via guiding means which hold the leaf and the frame in a generally parallel position relative to each other.
  • Two rigid chain drives are placed symmetrically relative to the centre of the skylight and the movement of the leaf is guided and stabilized by scissor mechanisms on each of the four sides of the skylight. Both the scissor mechanisms and the chain drives are embedded in the voids in the plastic frame.
  • a skylight with a raising leaf of such a design is a solution where standard profiles, utilized e.g. for typical non-opening skylights, can be used only to a limited extent. It would be desirable do propose such a design for a skylight with a raising leaf where manufacturing and installation costs could be reduced through utilizing as many standard elements, used in other skylight types and other components for joinery and window frames, as possible.
  • JP 2000 017793 A discloses a roof skylight according to the preamble of claim 1.
  • the purpose of the proposed solution is to introduce a roof skylight arranged for opening the leaf, generally orthogonally to the plane of installation of the frame, to a sufficient height, and use of said skylight with as a skylight with smoke removal function, wherein the leaf raising mechanism should be embedded as close to the frame and leaf elements as possible.
  • the leaf rising mechanism should also enable its use in standard profiles for frame and leaf elements utilized in other skylight designs. Installation of the raising mechanism does not require any special preparation and machining of the frame and leaf elements.
  • the skylight in a typical configuration has a generally rectangular or square shape and comprises a frame embedded in the roof structure and a moveable leaf emebede in said frame.
  • the movement of the leaf preferably orthogonal relative to the plane of the frame, is achieved via at least two guiding mechanisms preferably placed symmetrically in skylight, and at least one drive, holding the leaf and the frame together in selected positions relative to each other, generally parallel, i.e. with no change in mutual angular position.
  • the guiding mechanism generally utilizes a known solution known as a flat scissor mechanism, which, if the linear movement of the leaf is forced, uses two levers of equal length, connected to each other through articulated joints in their kinematic centres.
  • Each lever is characterized by a rotary connection on one end and a rotary sliding connection on the other end.
  • each of these elements In order to enable the movement raising the leaf over the frame, each of these elements must have one rotary connection and one rotary sliding connection. Both dependencies result in a mechanism in which the rotary sliding connections of both levers with the leaf and the frame occur opposite each other. If the torque of the leaf relative to the frame occurs in a limited fashion, the levers of the scissor mechanism transfer mainly the load in the plane of its operation. The aforementioned torque, and additionally lateral forces, occur mainly in designs where the direction in which the driving actuator operates is not parallel to the direction in which the leaf moves and in cases where the skylight is installed on a non-horizontal surface, e.g.
  • the driving actuator in this manner is intentional and advantageous, since it reduces its height in the direction in which the leaf raises in the closed position and allows for lower profiles to be used, thereby reducing the height of the skylight.
  • the design of the driving actuator should ensure sufficient protrusion in order to enable the leaf to be raised in such a way as to ensure proper smoke removal function of the skylight, i.e. have the most advantageous (the highest) possible air outflow coefficient.
  • the skylight should be characterized by a compact design.
  • the torque of the leaf relative to the frame also causes additional forces which act orthogonally to the plane of the scissor mechanism.
  • a set of three or four scissor mechanisms is preferably utilized, of which at least one is in a plane non-parallel to the others, preferably orthogonal.
  • the most stable system consists of such a number of scissor mechanisms as to form a pseudo-closed chain when viewed from the top. In case of a skylight with a rectangular profile this means using four scissor mechanisms, one on each side.
  • Such configuration of scissor mechanisms enables asymmetrically applied raising force, i.e. characterized by non-zero net torque in the plane parallel to the plane of the skylight, to be utilized.
  • the minimum number of actuators is one; however, this causes a considerable unbalance of forces and torques, which has to be countered by lever connections with handles in the frame and the leaf.
  • Long-term operation of the skylight in this configuration causes the elements to wear more quickly, backlash and instability, especially in the raised position of the leaf.
  • Operating practice shows that the optimal solution, considering the cost and functionality, consists of two actuators, placed as symmetrically as possible, and three or four scissor mechanisms, preferably placed on each side of the skylight.
  • the drive set used should be characterized by zero net torque and minimal forces acting in the plane parallel to the plane of the skylight. This may be achieved through a system of at least three actuators arranged diagonally, forming a spatial balanced system of forces, in which the direction in which the actuators operate is not parallel to the direction in which the leaf is raised.
  • a system of at least three actuators, operating in the direction in which the leaf is raised may be utilized, provided one of their ends is embedded in a non-rotary manner in the frame or in the leaf. It is important to choose the location, embedding and direction in which the actuators operate in such a way that, regardless of the direction of the load, the degree of freedom of the leaf is limited to only linear movement orthogonally to the plane of the skylight.
  • the system in such configurations could generally function without scissor mechanisms, but due to relatively high cost of the actuators this is rarely utilized.
  • a much cheaper and more functional solution is to use actuators as drives and scissor mechanisms as systems for stabilizing and limiting the degree of freedom of the leaf.
  • the leaf can generally be held relative to the frame in a closed position or in an open position. In the closed position the leaf is embedded in the frame and the scissor mechanisms and driving actuators are not under load. In the open position, if horizontal component forces occur generating torque of the leaf relative to the frame, the entire load related to the leaf is transferred via the driving actuators and scissor mechanisms.
  • a roof skylight is proposed according to claim 1.
  • the essence of the solution as per the proposed invention is a set of elements generally comprising a bottom bracket fixed to the frame element and a top bracket fixed to the leaf element or to the supporting frame of the dome, serving as supporting elements for the rotary and rotary sliding embedding of both levers of the scissor mechanism and additionally rotary embedding of the actuator if it is projected for installation.
  • the scissor mechanism and elements of the installation kit are preferably made from a material with a high mechanical strength, primarily flexural strength, e.g.
  • the bottom bracket is fixed to the inner edge of the frame element and should have a sufficiently large contact area with the surface of the frame element and an appropriate amount of fasteners, so that the transferred load does not damage the frame element, which is typically made from plastic or, more rarely, wooden profiles.
  • the bottom bracket may, on the inner side of the frame, adjoin the surface of the roof structure if the hole in the roof is preferably smaller than the inner outline of the frame.
  • the top bracket is fixed to the inner side of the leaf or the supporting frame of the skylight. The essence of the solution is placing the set of elements, i.e. the scissor mechanism, driving actuator, bottom bracket and top bracket, on the inner side of the frame and leaf elements.
  • the above description pertains to a single selected set, comprising installation kit, scissor mechanism and driving actuator, intended for one of the sides of the skylight.
  • the number of sets used for a skylight should take into account the conditions relating to the structural stability given above, stemming from, among others, the mass of the leaf being raised and additional load, e.g. snow, as well as projected effect of air movement outside of the building.
  • mechanical elements are preferably hidden by covers fixed to the bottom bracket on the inner side. Apart from the aforementioned function, the covers are characterized by ease of installation and removal, thereby providing convenient and easy access to mechanical elements of the skylight, e.g. in case repair or maintenance is necessary.
  • Masking plates or lining whose upper edge is preferably adjusted to the shape and position of the glazing of the leaf or the dome in the closed position of the skylight, may be utilized as covers. If in a given skylight design the covers would protrude too much over the frame, causing e.g. increased resistance for air outflow, they may be divided into a part fixed to the frame and a part fixed to the leaf, or covering the mechanisms near the leaf may be forgone. In the closed position the leaf is preferably embedded in the brim of the frame, and between the masking covers and the surface of the glazing of the skylight there is a preferably small gap, which takes manufacturing and installation imperfections, as well as thermal expansion, into account.
  • the proposed solution as per the invention requires no special design and preparatory machining of the frame and leaf elements and may be utilized both for new skylights, using current technology, as well as for skylights which are already in operation, whose functionality may be extended to openable skylights or skylights with smoke removal function.
  • the advantage of such a solution is a considerable reduction in cost of manufacturing skylights.
  • the roof skylight in the proposed embodiment consisting of four sides arranged in a rectangular system, preferably square, in a configuration with four scissor mechanisms, one for each side of the skylight, and four driving actuators, two symmetrically for opposite sides of the skylight, is graphically presented in the drawings:
  • a skylight as per the invention comprising a frame 1 and a leaf 2, raised orthogonally relative to the frame 1.
  • the frame 1 and the leaf 2 have four sides forming a closed rectangular shape, preferably with equal sides, generally made from plastic profiles.
  • the movement of the leaf 2 is guided and stabilized by four scissor mechanisms 3, one for each side of the frame and the leaf, operating in a plane orthogonal to the plane of the frame 1 and in parallel to the side by which they are fixed.
  • the movement of the leaf is achieved via four driving actuators 4, installed symmetrically, preferably in parallel planes, in an angular position relative to the direction in which the leaf is raised, two for opposite sides of the frame 1 and corresponding sides of the leaf 2.
  • the scissor mechanism 3, as well as driving actuators 4, if present, are, consistently on each side of the skylight, connected with the frame 1 through a bottom bracket 5 fixed to the element of the frame 1.
  • the bottom bracket 5 is generally a channel section with an inner arm 51, an arm 52 adjoining the inner surface 11 of the frame 1 and a connector 53, whose surface is generally parallel to the plane of the frame 1.
  • the shape of the profile and the inclination of the adjoining arm 52 imitates the shape and inclination of the inner surface 11 of the frame 1, to which the bottom bracket 5 is fixed.
  • the bottom bracket 5 constitutes a closed gutter preferably on the entire perimeter of the frame 1, on its inner side.
  • a bottom guide 7 for rotary sliding connection of the lever 31 of the scissor mechanism 3 and articulated brackets 55 for rotary connection of the linear actuator 4, if one is installed on the selected side of the skylight, are embedded on and fixed to the connector 53 of the bottom bracket 5, using typical joining means.
  • One lever 31' of the scissor mechanism 3 has a rotary-sliding connection with the bottom guide 7 achieved via an articulated slider 32'.
  • the rotary connection of second lever 31" of the scissor mechanism 3 with the bottom guide 7 is achieved via an articulated slider 32" with sliding blocked by a bolt 33 crossing coaxial holes in the bottom guide 7 and the second lever 31".
  • the levers 31', 31" of the scissor mechanism 3 are preferably made from steel flat bars.
  • the top brackets 6 are the elements which connect the driving actuators 4 with the leaf. They are generally embedded in the corners between the elements 21 of the leaf 2 and generally fixed to both leaf elements 21 via retaining arms 61 using typical joining means, e.g. screws.
  • An articulated bracket 62 for rotary connection of the driving actuator 4 is mounted on one of the retaining arms 61.
  • the articulated bracket 62 is mounted using the same joining means by which the retaining arm is fixed to the frame 2 elements 21, utilizing coaxial mounting holes.
  • the top guide 8 is generally a longitudinal profile, with a retaining arm 81 and a guiding profile 82 for fixing the top guide 8 to the frame 2 element 21 using typical joining means.
  • the top guide 8 has an identical function as the bottom guide 7 and preferably the same elements are used for rotary-sliding and rotary connections of the lever 31', 31" of the scissor mechanism 3, i.e. an articulated slider 32' for rotary sliding connection and an articulated slider 32' blocked by a bolt 33 for rotary connection.
  • the skylight has masking plates 9, generally on the entire perimeter, fixed to the inner arm 51 of the bottom bracket 5.
  • the height of the masking plates 9 in the direction of the leaf 2 is chosen in such a way as to effectively hide mechanical elements from view and at the same time not create additional factor of increased resistance for air outflow. For this reason, the height of the masking plates 9 is reduced and masking strips 10, preferably plastic, fixed to the leaf 2, fulfil the masking function in the space not covered by the masking plates 9.
  • the masking plates 9 and the masking strips 10 are next to each other or there is a small tuck between them, thus they completely cover the view of mechanical parts from within the skylight.
  • the mutual height of the masking plates 9 and the masking strips 10 should take manufacturing and installation imperfections and varied thermal expansion of the skylight elements into account, so that they do not interfere with the ability to close the skylight tightly.
  • the control system for the driving actuators 4 provides at least three predefined positions of the height to which the leaf 2 is raised.
  • the closed position of the leaf 2 is the first of them.
  • Ventilation position is the second: the leaf 2 is raised to a small height so as to enable the flow of air, but at the same time prevent access by unauthorized persons from the outside.
  • the alarm position, the smoke removal position, is the third; here, the leaf 2 is raised to maximum height.
  • the skylight as per proposed invention is characterized by displacement of the elements of the frame 1 and leaf 2 from the exhaust outlet, which results in improved thermal performance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Catching Or Destruction (AREA)

Claims (14)

  1. Le lanterneau composé :
    - du dormant (1) installé dans la structure du toit, en particulier du toit plat,
    - et de l'ouvrant mobile (2), installé dans le dormant (1), où l'ouvrant (2) est relevé perpendiculairement au dormant (1) et est maintenu à des distances choisies par rapport au dormant (1) en principe dans la position parallèle au dormant,
    - où le dormant (1) et l'ouvrant (2) possèdent au moins trois, et de préférence quatre, côtés formant une figure fermée,
    - d'au moins deux mécanismes à ciseaux (3) dont chacun comporte deux leviers de la même longueur qui ne sont pas liés de manière articulée dans leurs centres cinématiques, et chaque levier comporte sur l'une des extrémités une liaison rotative avec le dormant (1) ou l'ouvrant (2) et sur l'autre extrémité comporte une liaison coulissante avec l'ouvrant (2) ou le dormant (1), où le mouvement de l'ouvrant est réalisé au moyen de ces mécanismes à ciseaux (3) localisés sur les côtés du lanterneau, pour lesquels le plan d'opération est en principe parallèle par rapport au lanterneau adjacent,
    - et d'au moins d'un vérin d'entraînement (4) adapté au déplacement de l'ouvrant et le vérin est lié de manière rotative au dormant et à l'ouvrant,
    caractérisé en ce que, le lanterneau possède un support inférieur (5) et un support supérieur (6) qui constituent les éléments de support pour une liaison rotative et coulissante des deux levers de chaque mécanisme à ciseau (3), et d'une liaison rotative du vérin d'entraînement (4) où le support inférieur (5) est installé de manière fixe sur le côté intérieur du dormant (1) et le support supérieur (6) est installé de manière fixe sur le côté intérieur du cadre de l'ouvrant (2) en assurant une liaison mobile de l'ouvrant (2) par rapport au dormant (1).
  2. Le lanterneau selon la revendication 1, caractérisé en ce que le support inférieur (5) est en principe un profilé en U qui comporte un bras interne (51), un bras adjacent (52) au dormant (1) et un connecteur (53) dont la surface est en principe parallèle au plan du dormant (1).
  3. Le lanterneau selon la revendication 2, caractérisé en ce que la forme du profil et l'inclinaison du bras adjacent (52) sont adaptées à la forme du profil et à l'inclinaison de la surface interne (11) du dormant (1) sur lequel le support inférieur (5) est fixé.
  4. Le lanterneau selon la revendication 1 à 2, caractérisé en ce que le support inférieur (5) constitue une goulotte fermée essentiellement sur toute la circonférence du dormant (1).
  5. Le lanterneau selon la revendication 1 caractérisé en ce que dans le support inférieur (5) il y a un guide inférieur (7) et dans le support supérieur (6) il y a un guide supérieur (8).
  6. Le lanterneau selon les revendications 2 et 5, caractérisé en ce que sur le connecteur (53) du support inférieur (5) sont installés le guide inférieur (7) et les supports articulés (55) ainsi que le vérin d'entraînement (4) est liée de manière rotative avec le support articulé précité (55).
  7. Le lanterneau selon la revendication 1 caractérisé en ce que le mécanisme à ciseau comporte un levier (31') et un autre levier (31") qui ne sont pas reliés entre eux par une liaison articulée dans leurs centres cinématiques.
  8. Le lanterneau selon les revendications 5 et 7 caractérisé en ce que le levier (31') est lié de manière rotative et coulissante et l'autre levier (31") est lié de manière rotative avec le guide inférieur (7).
  9. Le lanterneau selon les revendications 5 et 7 caractérisé en ce que le levier (31') est lié de manière rotative et coulissante et l'autre levier (31") est lié de manière rotative avec le guide supérieur (8).
  10. Le lanterneau selon la revendication 1, caractérisé en ce que le guide supérieur (8) est un profil longitudinal et comporte un profil de guidage (82) et un bras de fixation (81) qui sert à installer le guide supérieur (8) au montant (21) de l'ouvrant (2).
  11. Le lanterneau selon la revendication 1, caractérisé en ce que les supports supérieurs (6) sont installés dans les coins entre les montants (21) de l'ouvrant (2) et fixés à l'un et à tous les deux montants (21) par les bras de fixation (61).
  12. Le lanterneau selon la revendication 6, ou 7, caractérisé en ce que le bras de fixation (61) du support supérieur (6) constitue sa base et comporte des moyens pour installer le support articulé (62) et le vérin d'entraînement (4) et est lié de manière rotative avec le support articulé (62).
  13. Le lanterneau selon les revendications 8 et 9, caractérisé en ce qu'une liaison rotative et coulissante du mécanisme à ciseaux (3) avec le guide supérieur (8) et le guide inférieur (7) est réalisée par un coulisseau articulé (32') et la liaison rotative du mécanisme à ciseaux (3) avec le guide supérieur (8) et le guide inférieur (7) est réalisée par un coulisseau articulé (32") avec la possibilité bloquée du déplacement au moyen d'une goupille 33 passant d'une manière transversale à travers les trous coaxiaux dans le guide inférieur (7) et le levier (31).
  14. Le lanterneau selon la revendication 2, caractérisé en ce que le bras intérieur (51), du support inférieur constitue la base et comporte des moyens pour installer les plaques de recouvrement (9), de préférence sur toute la circonférence du dormant (1), et ayant une hauteur dans la direction de l'ouvrant (2) qui n'est pas supérieure à la distance au vitrage de l'ouvrant (2) en position fermée.
EP16196247.7A 2015-10-28 2016-10-28 Dachfenster mit erhobenem flügel, insbesondere mit rauchabzug funktion Active EP3162977B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL414578A PL230248B1 (pl) 2015-10-28 2015-10-28 Świetlik dachowy z unoszonym skrzydłem, zwłaszcza z funkcją oddymiającą

Publications (2)

Publication Number Publication Date
EP3162977A1 EP3162977A1 (fr) 2017-05-03
EP3162977B1 true EP3162977B1 (fr) 2018-04-11

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EP16196247.7A Active EP3162977B1 (fr) 2015-10-28 2016-10-28 Dachfenster mit erhobenem flügel, insbesondere mit rauchabzug funktion

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PL (1) PL230248B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3859094A1 (fr) * 2020-02-03 2021-08-04 VKR Holding A/S Une lucarne destinée à être installée dans un toit de bâtiment
CN114991395A (zh) * 2022-04-21 2022-09-02 富美建设集团有限公司 一种绿色建筑集成屋顶

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223559A (ja) * 1984-04-20 1985-11-08 中央発條株式会社 天窓
FR2747413B1 (fr) * 1996-04-12 1998-08-21 Cronier Applic Exutoire de desenfumage pour une voute cintree allongee
FR2762867B1 (fr) 1997-04-30 1999-07-09 Ecodis Sa Dispositif d'articulation d'une coupole sur une costiere d'un lanterneau
JP2000017793A (ja) * 1998-06-29 2000-01-18 Takafumi Endo 天 窓
PL2231977T3 (pl) * 2007-12-19 2017-10-31 Vkr Holding As Okno, sposób montażu okna, oraz okno zawierające zestaw części
EP2385184B1 (fr) 2010-05-07 2015-08-12 VKR Holding A/S Fenêtre de toit avec entraînement pour un mouvement d'ouverture vertical

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* Cited by examiner, † Cited by third party
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EP3162977A1 (fr) 2017-05-03
PL414578A1 (pl) 2017-05-08
PL230248B1 (pl) 2018-10-31

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