EP2395190B1 - Fenêtre avec deux châssis couplés - Google Patents

Fenêtre avec deux châssis couplés Download PDF

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Publication number
EP2395190B1
EP2395190B1 EP20100165673 EP10165673A EP2395190B1 EP 2395190 B1 EP2395190 B1 EP 2395190B1 EP 20100165673 EP20100165673 EP 20100165673 EP 10165673 A EP10165673 A EP 10165673A EP 2395190 B1 EP2395190 B1 EP 2395190B1
Authority
EP
European Patent Office
Prior art keywords
glazing
double
cover
recess
clearance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20100165673
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German (de)
English (en)
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EP2395190A1 (fr
Inventor
Bøje Skovgaard Sørensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bojso Dore & Vinduer AS
Original Assignee
Bojso Dore & Vinduer AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bojso Dore & Vinduer AS filed Critical Bojso Dore & Vinduer AS
Priority to EP20100165673 priority Critical patent/EP2395190B1/fr
Priority to DK10165673T priority patent/DK2395190T3/da
Publication of EP2395190A1 publication Critical patent/EP2395190A1/fr
Priority to DKBA201200163U priority patent/DK201200163U3/da
Application granted granted Critical
Publication of EP2395190B1 publication Critical patent/EP2395190B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/26—Compound frames, i.e. one frame within or behind another
    • E06B3/2605—Compound frames, i.e. one frame within or behind another with frames permanently mounted behind or within each other, each provided with a pane or screen

Definitions

  • the present invention relates to a coupled window which comprises an outer sash adapted for being hinged upon a window frame, an inner sash hinged upon the outer sash, a recess in the inner sash limited by a first face extending crosswise to the inner sash and a second face extending crosswise to the first face, a double-glazing attached to at least the second face of the recess, a clearance between the periphery of the double-glazing and the first face of the recess, and an access opening to the clearance.
  • the invention also relates to a method for producing the coupled window.
  • Coupled window is used herein for a window, which comprises an outer sash hinged on a window frame and an inner sash hinged on the outer sash.
  • thickness is used for a dimension extending crosswise the coupled window and the term “width” for a dimension extending crosswise the thickness.
  • a windows rate of heat loss i.e. it's thermal conductivity is indicated in terms of the U-coefficient (U-value/U-factor). The lower the U-coefficient, the greater a window's resistance to heat flow and the better its insulating properties.
  • the U-value takes no account of the positive benefits of windows - i.e. they let in both light and heat.
  • the actual area and geometry of a window has a great influence on the overall window energy performance. This is due to the fact that a smaller window has a relatively greater frame fraction than a bigger window if using the same frame dimension. A small window dimension can therefore be expected to have a higher overall U-value and a lower total solar energy transmittance since the relative glazing area has been reduced.
  • I is the solar radiation calculated for a reference house and D is the degree hour number during the heating season in Denmark.
  • U w is the total thermal transmittance and g w is the total solar energy transmittance of the window. It is seen that the net energy gain will be negative when energy is lost, and it is therefore desirable to have a relatively high Net Energy Gain value - E ref .
  • a coupled window having a low U-coefficient is known from the applicant's own Danish patent no. 176456 B1 .
  • This known coupled window comprises an outer sash for being hinged upon a window frame and an inner sash which is hinged upon the outer sash whereby each sash is mounted with a single glass pan.
  • the two sashes of said known coupled window can pivot in relation to each other about their common hinges between a mutually closed and open state.
  • a sealing strip which is attached to one of the sashes, seals a gap between the two sashes when they are in their mutually closed state.
  • Said sealing strip is permeable for air whereby an airflow is passing between the two glass pans of the window.
  • This air which is something hot because the air is taken from the heated room, keeps advantageously dew away from the glass pans in the closed state of the coupled window.
  • Such improved coupled window already exists in form of an outer sash with a single glass pan and an inner sash with a double-clazing.
  • the inner sash is conventionally rectangular or quadratic with four bars having each a base and also a rib extending from the base.
  • the base and the rib of the bar together form a recess in the bar with a first face on the base and a second face on the rib.
  • the two faces are forming a right angle with each other.
  • the double-glazing is placed in said recess with a clearance between the periphery of the double-glazing and the first face of the recess.
  • the double-glazing and the material of the inner sash have normally different coefficients of thermal expansion. This causes the double-glazing and the inner sash to expand differently when being influenced by heat. Such different expansion is however allowed to take place owing to the presence of said clearance.
  • a first rubber strip is moreover placed between the glass bead and the double-glazing while a second rubber strip is placed between the double-glazing and the second face on the rib of the bar.
  • the thickness of the inner sash is the sum of the thickness of the glass bead, the thickness of the first rubber strip, the thickness of the double-glazing, the thickness of the second rubber strip and the thickness of the rib of the bar.
  • the thickness of the inner sash is unfortunately rather large whereby the known double-glazing window is imparted a unpleasant appearance which is not acceptable with an otherwise esthetic architecture.
  • the double-glazing is made relatively thin. This will result in a correspondingly high U-coefficient of the double-glazing and accordingly an increased loss of heat through the window and higher cost for heating.
  • the structure of the inner sash for mounting the double-glazing need to be strong enough to prevent deformation of the sash when being influenced by e.g. heavy wind loads, otherwise the sash will not be able to fit tightly to the window frame.
  • the sash is able to securely maintain its rectangular or quadratic form, thereby effectively preventing that the required clearance between the periphery of the double-glazing and the first face of the recess in the bars is dislocated. This could namely cause the bars to collide with the periphery of the double-glazing and, if occasion should arise, resulting in that the window is more or less destroyed.
  • the bars of the inner sash needs to have a sufficiently large bending moment and a corresponding large width for being able to resists forces acting onto the inner sash in the sash's plane.
  • Each of the bars of the inner sash therefore needs to be relatively width whereby the free area of the double-glazing is correspondingly reduced with the result that the incident light is diminished.
  • a seventh aspect of the invention providing a coupled window of the kind mentioned in the opening paragraph, which is equipped with means for protecting sensitive parts of the window against UV-rays, and
  • the coupled window comprises a cover list with a cover for covering at least an area of the outer side of the double-glazing at the access opening of the clearance and an anchor for anchoring the cover list in the clearance.
  • the thickness of the inner sash of the coupled window of the invention is substantially smaller than the thickness of the inner sash of the previously mentioned known coupled window owing to the fact that the thickness of the inner sash of said known window needs to be at least the sum of the thickness of the glass bead for securing the double-glazing to the sash, the first rubber strip, the double-glazing, the second rubber strip and the rib of each bar of the known sash, while the thickness of the inner sash of the window according to the invention only needs to be the sum of the relative thin cover of the cover list plus the thickness of the double-glazing and optionally a rib.
  • the inner sash of the invention therefore is very narrow which is not only cost saving but is also imparting the coupled window a nice and esthetic appearance.
  • the thickness of the double-glazing of the invention can according to the invention also be thicker than the double-glazing of the known coupled window, whereby a lower U-coefficient and a higher E ref -value can be obtained, and accordingly a better protection against heat loss through the window.
  • the double-glazing can be attached to the inner sash by gluing whereby the double-glazing and the sash together form a very stiff and strong unit which allows the inner sash of the invention to have a substantially smaller width than the sash of the known coupled window which has only the inner sash, which is not supported by the double-glazing, to withstand forces acting in the plane of the sash.
  • the double-glazing of the invention can therefore also have a larger extension than the double-glazing of the known coupled windows, and accordingly a lower U-coefficient.
  • the double-glazing in the inner sash has a substantially larger extension than the glass pan in the outer sash, thereby ensuring that more incident light is allowed to pass the coupled window according to the invention than is allowed to pass the known coupled window.
  • the double-glazing according to the invention can be attached to the inner sash by gluing.
  • This operation can more precisely take place by applying glue to the second face and/or the first face of the recess in each bar and then place the double-glazing in said recess in contact with said glue whereby the doubled-glazing and the sash quickly and easily will be secured to each other and in a very inexpensive way too.
  • the glue can instead be applied to the double-glazing according to the invention, which thereafter is placed in the recess of each bar where the glue on the double-glazing comes in contact with the second face and/or the first face of the recess in each bar.
  • a very secure and strong connection between the double glazing and the sash is according to the invention obtained by applying glue on both the double-glazing and the first an second face of the recess in each bar.
  • the outer and inner sash of the coupled window according to the invention will form a gap.
  • Said gap will, like the coupled window known from DK 176456 B1 , be tightened by means of a sealing strip.
  • This sealing strip can in one embodiment have a closed cellular structure and in another embodiment an open cellular structure.
  • the sealing strip is permeable for air whereby a current of air is passing the space between the outer glass pan and the inner glass pan of the double-clazing.
  • This current of air is advantageously keeping dew away from the window in the mutually closed state of the two sashes.
  • sealing strip according to the invention is attached to the outer side of the cover of the cover list.
  • the cover list with its cover and anchor can according to the invention be made of a material which can be extruded to a stiff and/or rigid cover list and the sealing strip can continuously be attached to the cover of the extruded cover list. This will ensure that the sealing strip easily, quickly and precisely can be attached to the cover list and in an extremely inexpensive way too.
  • the cover list with the attached permeable sealing strip be mitred into lengths fitting to each their side of the inner sash and the anchor of the cover list can be placed into the clearance between the periphery of the double-glazing and the first face of the recess in the inner sash of the couple window.
  • the anchor of the cover list can according to the invention moreover be barbered so that the anchor easily and quickly can be secured in the clearance when having being introduced through the access opening of the clearance.
  • the anchor with or without barbs be secured in the clearance by gluing.
  • the cover of the cover list can be curved, seen in cross-section, and the concave side of the cover list can face the area covered by the cover so that the longitudinal edges of the cover tightly abuts the outer side of the double-glazing and the inner sash even if said outer sides are not complete plane.
  • the cover list can according to the invention furthermore be made of a material, which is impervious to UV-rays for protecting possible sensitive parts of the window against irradiation of UV-rays.
  • the cover list can furthermore easily, quickly and safely be connected with the inner sash by introducing the anchor of the cover list via the access opening into the clearance, so that the cover of the cover list at the access opening of the clearance is covering an area on the outer side of both the double-glazing and the inner sash.
  • FIG. 1 An advantageous embodiment of a coupled window 1 is seen in fig. 1 where the window is closed and in fig. 2 where the coupled window 1 is open.
  • the outer sash 2 of the coupled window is hinged on the window frame 3 by means of a hinge 4 while the inner sash 5 is hinged on the outer sash 2 by means of another hinge 6.
  • the outer sash is formed in the same way as the outer sash of the coupled window known from the DK 176456 B1 in which the outer sash is mounted with a single glass pan 7.
  • the inner sash 5 is mounted with a double-glazing 8 whereby the coupled window of the invention advantageously is imparted a very little U-coefficient so that loss of heat through the coupled window of the invention is considerably reduced in proportion to the loss of heat through a conventional coupled window of e.g. the kind known from the earlier mentioned DK patent 176456 .
  • the double-glazing 8 of the coupled window of the invention consists, as best seen in fig. 3 , of an inner glass pan 9 and an outer glass pan 10.
  • the two glass pans 9,10 are kept apart by means of a spacer 11, which airtight is attached to the two glass pans 9,10 by means of a glue 12.
  • the inner sash 5 consists, as seen in fig. 6 , of fours bars 13 which together form a rectangle.
  • Each bar 13 consists of a base 14 and a rib 15, which as seen in fig. 3 , together form a recess 16 with a first face 17 on the base 14 and a second face 18 on the rib 15.
  • the two faces 17,18 are in this case forming a right angle with each other.
  • the double-glazing 8 is placed in the recess 16 with a clearance 19 in between the periphery 20 of the double-glazing 8 and the first face 17 of the recess 16. This clearance serves for allowing the double-glazing and the bars of the inner sash to expand differently when being influenced by heat so that the risk of getting the window more or less destroyed when being influenced by heat effectively is eliminated.
  • the double-glazing 8 is moreover attached to the second face 18 and partly also to the first face 17 of the recess 16 in the bar 13 of the inner sash 5 by means of a glue 21 whereby the double glazing and the inner sash together form an integral unit which becomes so stiff and strong that the width of the bar can be relatively small and the two-dimensional extension of the double-glazing correspondingly larger.
  • Said sealing strip 23 has an open cellular structure, which allows an air current to pass the space between the inner and outer glass pan 9,10 of the double-clazing via the sealing strip 23 so that dew is kept away from the opposite sides of the two glass pans 9,10.
  • the sealing strip 23 is, as seen in fig. 3 , 4 and 5 , according to the invention attached to the outer side of a cover list 24, which consists of a cover 25 and an anchor 26.
  • the cover list 24 is mounted onto the inner sash by anchoring the anchor 26 of the cover list 24 in the clearance 19 formed between the periphery of the double-glazing 8 and the first face 17 of the recess 16 in the bar 13, so that the cover 25 of the cover list 24 at the access opening 19' of the clearance 19 is covering an area on the outer side of both the double-glazing 8 and the inner sash 5.
  • the cover 25 of the cover list 24 slightly curved whereby the cover 25 is forced to abut the outer sides of the double-glazing 8 and the inner sash 5 with its longitudinally extending edges 27 for thereby securing that the cover 25 fits tightly to said outer sides of the double-glazing 8 and the inner sash 5.
  • the two glass pans 9,10 of the double-glazing 8 kept apart by means of a spacer 11, which airtight is attached to the two glass pans 9,10 by means of a glue 12 and the double-glazing 8 is itself attached to the recess 16 in the bar 13 of the inner sash 5 by means of a glue 21.
  • the cover list 24 made of a material, which is impervious to UV-rays whereby the cover 25 of the cover list 24 protects the glues against such harmful irradiation.
  • the anchor 26 is in the embodiment shown in fig. 3 and 5 secured in he clearance 19 by means of barbs 28 which are adapted in such a way that they allow air in the clearance to get past the bars during introducing of the anchor in the clearance through the access opening 19'.
  • the anchor may be further secured in the clearance by gluing.
  • a cover list 24 extruded (not shown) while a self-adhesive sealing strip 23 continuously is attached upon the outer side of the cover 25 of the cover list 24.
  • the extruded cover list 24 with the attached sealing strip 23 is cut in gearing in length fitting to each their side of the inner sash, as seen in fig. 6 .
  • the thickness of the inner sash 5 is the sum only of the thickness of the cover 25 of the cover list 24, the thickness of the double-glazing 8 and the thickness of the rib 15 of the bar 13 of the inner sash 5.
  • the thickness of the inner sash of the invention therefore is substantially smaller than the thickness of the inner sash of a conventional coupled window of the same kind and even if the thickness of the double-glazing of the invention is considerably larger than the thickness of said conventional coupled window.
  • the thickness of the sash and the double-glazing of the coupled window according to the invention and of the sash and the double-glazing of a conventional coupled window of the kind described on page 4 of this application has been measured to have the following values.
  • the relative little thickness of the inner sash of the invention is imparting a nice and esthetic appearance to the coupled window according to the invention.
  • the relative large thickness of the double-glazing is moreover imparting a low U-coefficient to the coupled window of the invention so that loss of heat through the window is substantially reduced.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Claims (15)

  1. Fenêtre double comprenant :
    un châssis externe (2) adapté pour être articulé sur un cadre de fenêtre (3),
    un châssis interne (5) articulé sur le châssis mobile externe (2),
    un évidement (16) dans le châssis interne (5) limité par une première face (17) qui s'étend transversalement par rapport au châssis interne (5) et une seconde face (18) s'étendant transversalement par rapport à la première face (17),
    un double vitrage (8) fixé au moins à la seconde face (18) de l'évidement (16),
    un espace libre (19) entre la périphérie (20) du double vitrage (8) et la première face (17) de l'évidement (16), et
    une ouverture d'accès (19') dans l'espace libre,
    caractérisée en ce que la fenêtre comprend en outre :
    un listel de recouvrement (24) avec un recouvrement (25) pour recouvrir au moins une zone du côté externe du double vitrage (8) au niveau de l'ouverture d'accès (19') de l'espace libre (19), et
    un ancrage (26) pour ancrer le listel de recouvrement (24) dans l'espace libre (19).
  2. Fenêtre double selon la revendication 1, caractérisée en ce que le double vitrage (8) est fixé à au moins la seconde face (18) de l'évidement (16) par collage.
  3. Fenêtre double selon la revendication 1 ou 2, caractérisée en ce qu'une bande d'étanchéité (23) est fixée au listel de recouvrement (24) et rend étanche un espace entre les châssis interne et externe (3 ; 5) dans leur position mutuellement fermée.
  4. Fenêtre double selon la revendication 3, caractérisée en ce que la bande d'étanchéité (23) est perméable à l'air.
  5. Fenêtre double selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le recouvrement (25) du listel de recouvrement (24) recouvre à la fois une zone du côté externe du double vitrage (8) et une zone du côté externe du châssis interne (5) au niveau de l'ouverture d'accès (19') de l'espace libre (19).
  6. Fenêtre double selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le recouvrement (25) du listel de recouvrement (24) est incurvé, observé en coupe, et en ce que le côté concave du recouvrement (25) fait face à la zone recouverte par le recouvrement (25) du listel de recouvrement (24).
  7. Fenêtre double selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le listel de recouvrement (24) est réalisé dans un matériau qui est imperméable aux rayons UV.
  8. Fenêtre double selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'ancrage (26) du listel de recouvrement (24) est barbelé.
  9. Fenêtre double selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'ancrage (26) du listel de recouvrement (24) est adapté pour permettre à l'air situé dans l'espace libre (19) de passer entre les ardillons (28) de l'ancrage (19) pendant l'introduction de l'ancrage (19) dans l'espace libre via l'ouverture d'accès (19') de l'espace libre.
  10. Procédé pour produire une fenêtre double selon l'une quelconque des revendications 1 à 9, caractérisé par l'extrusion du listel de recouvrement (24) et la fixation continue de la bande d'étanchéité perméable à l'air (23) contre le recouvrement (25) du listel de recouvrement (24) pendant l'extrusion du listel de recouvrement.
  11. Procédé selon la revendication 10, caractérisé par le sciage en onglet du listel de recouvrement (24) et de la bande d'étanchéité perméable fixée (23) sur la longueur en adaptant pour chacun leur côté du châssis interne (5).
  12. Procédé selon la revendication 10 ou 11, caractérisé par l'application de colle (21) sur au moins la seconde face (18) de l'évidement (16) dans chaque barre (13) et le placement du double vitrage (18) dans ledit évidement (16) en contact avec ladite colle (21).
  13. Procédé selon la revendication 10 ou 11, caractérisé par l'application de colle (21) sur le double vitrage (8) et le placement du double vitrage (8) dans l'évidement (16) de chaque barre (13) avec la colle (21) en contact avec au moins la seconde face (18) de l'évidement (16).
  14. Procédé selon la revendication 10 ou 11, caractérisé par l'application de colle (21) à la fois sur la au moins seconde face (18) de l'évidement (16) dans chaque barre (13) et sur le double vitrage (8), et le placement du double vitrage (8) dans l'évidement (16) de chaque barre (13) de sorte que la colle (21) sur la au moins seconde face (18) de l'évidement (16) et la colle (21) sur le double vitrage (8) entrent en contact l'une avec l'autre.
  15. Procédé selon l'une quelconque des revendications 10 à 14, caractérisé par le placement de l'ancrage (26) de chaque longueur sciée en onglet du listel de recouvrement extrudé (24) avec la bande d'étanchéité perméable fixée (23) dans l'espace libre (19) de telle sorte que le recouvrement (25) recouvre une zone d'au moins le côté externe du double vitrage (8) au niveau de l'ouverture d'accès (19') de l'espace libre (19).
EP20100165673 2010-06-11 2010-06-11 Fenêtre avec deux châssis couplés Active EP2395190B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20100165673 EP2395190B1 (fr) 2010-06-11 2010-06-11 Fenêtre avec deux châssis couplés
DK10165673T DK2395190T3 (da) 2010-06-11 2010-06-11 Koblet vindue
DKBA201200163U DK201200163U3 (da) 2010-06-11 2012-10-29 Koblet vindue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20100165673 EP2395190B1 (fr) 2010-06-11 2010-06-11 Fenêtre avec deux châssis couplés

Publications (2)

Publication Number Publication Date
EP2395190A1 EP2395190A1 (fr) 2011-12-14
EP2395190B1 true EP2395190B1 (fr) 2012-11-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100165673 Active EP2395190B1 (fr) 2010-06-11 2010-06-11 Fenêtre avec deux châssis couplés

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EP (1) EP2395190B1 (fr)
DK (1) DK2395190T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK201370330A1 (en) * 2013-06-19 2015-01-12 Climawin Techniq Aps Hinge and lock for a window sash

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044832B (en) 1979-02-20 1983-02-23 Adshead Ratcliffe & Co Ltd Multiple glazing assemblies
EP0690195A1 (fr) * 1994-06-22 1996-01-03 Esko Plus Kozijnen B.V. Construction de cadre de fenêtre
DE50111254D1 (de) * 2000-08-31 2006-11-30 Martin Lacher Niedrigenergiefenster
SE523477C2 (sv) * 2003-05-20 2004-04-20 Hans Oehman Anordning vid fönster
DK176456B1 (da) 2004-01-26 2008-03-17 Boejsoe Doere & Vinduer As Koblet vindue
GB0614291D0 (en) 2006-07-19 2006-08-30 Auto Plas Internat Ltd Article interconnection arrangements

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DK2395190T3 (da) 2013-02-18
EP2395190A1 (fr) 2011-12-14

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