EP2799654B1 - Verfahren zur Montage eines Fensterprofils mit Isoliermaterial - Google Patents

Verfahren zur Montage eines Fensterprofils mit Isoliermaterial Download PDF

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Publication number
EP2799654B1
EP2799654B1 EP13166086.2A EP13166086A EP2799654B1 EP 2799654 B1 EP2799654 B1 EP 2799654B1 EP 13166086 A EP13166086 A EP 13166086A EP 2799654 B1 EP2799654 B1 EP 2799654B1
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EP
European Patent Office
Prior art keywords
foam
legs
slab
rigid
rigid foam
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.)
Not-in-force
Application number
EP13166086.2A
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English (en)
French (fr)
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EP2799654A1 (de
Inventor
Mario Genetello
Joan Vermeersch
Matthias WILLOCKX
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.)
Recticel NV SA
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Recticel NV SA
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Publication date
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Priority to EP13166086.2A priority Critical patent/EP2799654B1/de
Priority to BE2014/0290A priority patent/BE1022432B1/nl
Publication of EP2799654A1 publication Critical patent/EP2799654A1/de
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Publication of EP2799654B1 publication Critical patent/EP2799654B1/de
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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
    • E06B3/263—Frames with special provision for insulation
    • E06B3/26301—Frames with special provision for insulation with prefabricated insulating strips between two metal section members
    • E06B3/26303—Frames with special provision for insulation with prefabricated insulating strips between two metal section members with thin strips, e.g. defining a hollow space between the metal section members
    • 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
    • E06B3/263—Frames with special provision for insulation
    • E06B3/2632—Frames with special provision for insulation with arrangements reducing the heat transmission, other than an interruption in a metal section
    • E06B2003/26321—Frames with special provision for insulation with arrangements reducing the heat transmission, other than an interruption in a metal section with additional prefab insulating materials in the hollow space

Definitions

  • the present invention concerns a method of assembly of a window or door profile comprising an inner and an outer shell separated by an insulating bridge.
  • a window or door profile comprising an inner and an outer shell separated by an insulating bridge.
  • Such profile structure is well-known for aluminium window or door profiles.
  • Aluminium profiles generally comprise an inner shell and an outer shell in aluminium which are connected to each other by a thermal bridge.
  • the thermal bridge in most cases comprises two legs that each connect the inner shell to the outer shell of the profile, whereby a cavity is defined between the outer and inner shells and the legs of the thermal bridge.
  • DE 102010064034 a method of assembly of such a profile is described, wherein prior to fixation of the legs of the thermal bridge to the inner and outer shells, a slab of rigid PU foam is adhered to one of the legs of the thermal bridge.
  • the dimension of this slab is chosen such that after assembly of the profile, the slab fills the cavity defined by the thermal bridge from one leg to nearly the second leg, leaving a minimum of free space between the slab and the legs.
  • DE 102009046554 discloses a method wherein the slab of insulate material is fixed to one of the legs of the thermal bridge by clamping the insulate material between brackets provided on the leg.
  • EP 2080864 discloses a method wherein the slab of insulate material is first compressed and then inserted into the cavity defined between the outer and the inner shells and the legs.
  • legs of the thermal bridge need to be designed for fixation or adherence of the insulate material thereon and that the insulating material is to be attached to one of the legs of the thermal bridge prior to assembly.
  • a disadvantage of the prior attachment of the slab of insulating material is that the insulating material can be damaged during further handling and that rather large material stocks need to be maintained of both legs of the thermal bridge.
  • the present invention provides a solution to the above mentioned needs by a method of assembly of a window profile comprising an inner shell and an outer shell and an insulating thermal bridge connecting both shells, wherein said method comprises the steps of:
  • the slab of foam material comprises a rigid polyurethane or polyisocyanurate based foam, wherein said rigid foam preferably has a compression strength at room temperature of lower than 300 kPa, preferably lower than 250 kPa .(measured according to ISO 844)
  • the rigid foam has a recovery rate at room temperature and/or at 100°C of 90%, preferably 95% or more within a period of 90 minutes after 20% compression. More preferably the rigid foam has an expansion rate, defined as the difference between recovery (%) at room temperature after 24 hrs and immediate recovery (%) at room temperature after 20% compression, of at least 6% or more, most preferably at least 10%.
  • the rigid foam used preferably has a lambda value lower than 0,030 W/mK (measured according to ISO 8301), and a density of lower than 100 kg/m 3 , preferably lower than 50 kg / m 3 .
  • the water uptake of the rigid foam used is preferred to be maximally 10% (measured according to ISO 2896).
  • the rigid foam preferably is a closed cell foam.
  • the slab of foam material can, besides the rigid foam, also contain a flexible foam material.
  • This flexible foam material can be arranged as a continuous layer on at least one outer surface of the rigid foam material, so that, when sandwiching the slab of foam material between both legs, this flexible foam layer contacts at least one of the insulating legs. It can also be arranged on the rigid foam material so that, when sandwiching the slab of foam material between both legs, it contacts at least partially one of the aluminum profiles
  • the at least one of the legs of the thermal bridge provided has, on its surface designed to face the slab of foam material, a flexible foam material attached thereto.
  • Figure 1 represents a window or door profile 1 comprising an inner shell 2 and an outer shell 3 that are rigidly connected by a thermal bridge 4 comprising two legs 4a and 4b.
  • a cavity 5 is defined between the inner and outer shells 2 and 3 and the legs 4a and 4b of the thermal bridge 4. This cavity is at least partially filled with a slab 6 of insulating foam material extending over the entire width of the cavity 5 defined between the legs of the thermal bridge.
  • the inner and outer shells 2 and 3 are preferably manufactured in metal, in particular aluminium alloy.
  • the legs 4a and 4b of the thermal bridge 4 are typically manufactured rigid plastic material such as: polypropylene, polyethylene, polyamide, polyurethane, acrynitril-butadiene-styrol or polyethylenetherephthalate.
  • both legs 4a and 4b of the thermal bridge are separate and distinct parts, i.e. they are not fixed to each other prior to assembly of the profile with a method according to the present invention.
  • the slab 6 of insulating material is preferably a polyurethane (PU) based or polyisocyanurate (PIR) based rigid foam material.
  • PU polyurethane
  • PIR polyisocyanurate
  • Rigid foam is hereby defined as a foam having a compression strength of at least 150 kPa (measured according to ISO844).
  • Preferred PU or PIR materials used for manufacture of the slab 6 for use in a method according to the present invention have following properties:
  • the recovery rate is measured by compressing a block of foam with a dimension of 500 cm (length) * 50 cm (width) * 50 cm (height, h 1 ) (after 24 hours of conditioning at 21 +- 2°C and a relative humidity of 50 +- 10 %) in the height direction at a rate of 120mm/min; releasing the block and after a given time measuring the height (h 2 ) of the block; the recovery time corresponds to 100*h 2 /h 1 .
  • the PU or PIR foam is preferably a closed cell foam.
  • More preferred PU or PIR foams additionally meet the properties of:
  • Figure 2 schematically represents a method according to the present invention for assembly of a window or door profile, the method comprising the steps of:
  • the slab 6 When sandwiching the slab 6 of foam between the legs of the thermal bridge, the slab 6 is slightly compressed to ensure that it remains well positioned between the legs 4a and 4b that are kept at a mutual distance substantially corresponding to the distance between these legs 4a and 4b in the assembled profile.
  • Fixation of the legs to the inner and outer shells 2 and 3 is well known in the art and is typically performed by sliding dovetail-like protrusions at the extremities of the legs in compatible slots in the inner and outer shells 2 and 3.
  • the slab 6 of foam material preferably extends over the entire length of the profile or that several slabs are provided one next to the other in a lengthwise direction of the profile to obtain an assembled profile with an foam slab provided therein and extending over substantially the entire length of the profile.
  • both legs 4a and 4b can be identical, thereby reducing stock requirements and complexity of the method of assembly of the profile.
  • the slab of foam can comprise several foam materials, one of which is a rigid foam as described supra.
  • Other foam materials that can be comprised in the slab of foam are:
  • Foam slabs 6 comprising both a rigid foam and a flexible foam are preferred.
  • the foams comprised in the foam slabs 6 can be arranged in several shapes, as continues layer, discontinues layers, as patterned geometries, etc.
  • a first example of such alternative embodiment comprising a foam slab 6 having more than one type of foam is represented in figure 3 .
  • the slab of foam is a layered structure with at least one flexible foam layer 7 and a layer 8 of rigid foam, whereby the layer of flexible is oriented such as to be positioned in between the layer 8 of rigid foam and one of the legs 4a and 4b of the thermal bridge when sandwiching the slab of foam between both legs in accordance with a method of the present invention.
  • An advantage of such alternative embodiment is that sandwiching the slab 6 of foam between the legs 4a and 4b of the bridge is more forgiving and the chance of damaging the rigid foam due to excessive force exerted on the legs for sandwiching the slab is even further limited, thereby minimizing the risk of insulation loss.
  • the flexible layer 7 enables to compensate for variations in the thickness of the rigid layer 8, surface variations on the legs 4a, 4b or slight dimensional variations in the inner and outer shells 2 and 3.
  • the layer 7 of flexible foam does not need to be continuous but on the contrary can be designed according to a specific pattern creating air pockets 9 or air channels between the legs 4a and/or 4b of the thermal bridge and the layer 8 of rigid foam.
  • Such patterned design of the flexible layer is considered particularly beneficial in case the flexible foam layer has insulation properties lower than the insulation properties of still air.
  • FIG. 4 A non-limiting number of examples is represented in figure 4 wherein the slab is represented as sandwiched between the legs 4a and 4b of the thermal bridge to clarify orientation of the layers in view of these legs.
  • At least one of the legs 4a, 4b of the thermal bridge 4 comprises - at its surface facing the cavity 5 of the assembled profile - a flexible foam attached, for example by an adhesive, thereto.
  • a flexible foam attached, for example by an adhesive, thereto.
  • This flexible foam can be in the form of a layer of flexible foam extending lengthwise along the leg or can be present as a pattern of discrete patches of flexible foam material.
  • Fig. 4.1 depicts a three layered foam slab with a central layer of rigid foam and two outer layers 7 of flexible foam, each outer layer 7 facing an opposite leg 4a, 4b of the thermal bridge.
  • Fig. 4.2 represents a two layered foam slab, with a layer of rigid foam having a pattern of flexible foam islands provided on one of its surfaces facing a leg 4a or 4b of the thermal bridge.
  • Fig. 4.3 represents a foam slab 6 having a transverse cross section with a core of rigid foam material that is enveloped with a layer 7 of flexible foam material.
  • Fig. 4.4 shows a foam slab having a central layer 7 of flexible foam and two outer layers 8 of rigid foam, each outer layer facing an opposite leg 4a, 4b of the thermal bridge 4.
  • the foam slab comprises two outer layers 8 of rigid foam with facing surfaces that are profiled such as to match when positioned one on top of the other, whereby a layer 8 of flexible foam is applied in between both rigid foam layers 8.
  • this flexible foam layer 7 is applied on only part of the interface of both rigid foam layers.
  • Fig. 4.7 represents an alternative wherein a rigid foam layer extending between both legs 4a and 4b of the thermal bridge is flanked on its two sides facing the half shells of the aluminum profile with flexible foam slabs.
  • Fig. 4.8 shows a rigid foam slab profiled as a X the legs of which are sandwiched between the legs 4a and 4b of the thermal bridge 4.
  • Fig. 4.10 shows an embodiment wherein the foam slab comprises two layers 8 of rigid foam having corresponding slanting facing surfaces, whereby the rigid layers 8 are flanked with slabs of flexible foam on their surfaces facing the half shells of the aluminum profile.
  • Fig. 4.11 concerns an alternative embodiment with a rigid foam slab having surfaces - facing the legs 4a and 4b of the thermal bridge 4 - that are profiled to show a pattern of open cavities filled with a flexible foam or air.
  • Fig 4.12 represents yet another alternative embodiment, wherein two L shaped slabs of rigid foams are provided with a slab of flexible foam therebetween.
  • the flexible foam can be replaced with a shape memory foam.
  • this foam is preferably applied in a compressed state at a temperature below its Tg, whereby during post treatment of the assembled profile (example given during lacquering at elevated temperatures above Tg of the shape memory foam) the shape memory foam is allowed to expand and hence fill a remainder of the cavity 5.
  • any heat expandable foam material may be applied in these embodiments.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Claims (14)

  1. Verfahren zum Zusammenbau eines Fensterprofils, welches eine innere Schale (2) und eine äußere Schale (3) sowie eine isolierende Wärmebrücke (4), die beide Schalen verbindet, umfasst, wobei das Verfahren die Schritte umfasst:
    (a) Bereitstellen einer inneren Schale (2) und einer äußeren Schale (3);
    (b) Bereitstellen zweier Stege (4a, 4b) eines isolierenden Materials, die zusammen die Wärmebrücke (4) definieren werden;
    (c) Einschließen eines Schaumblocks (6) zwischen den Stegen (4a, 4b), wobei der Schaumblock (6) in wenigstens einer Dimension komprimiert wird, wenn er zwischen den Stegen (4a, 4b) eingeklemmt wird;
    (d) Gleichzeitiges und/oder anschließendes Fixieren der Stege (4a, 4b) an der inneren und äußeren Schale (2, 3), während der Schaumblock (6) zwischen den beiden Stegen (4a, 4b) eingeklemmt gehalten wird.
  2. Verfahren nach Anspruch 1, wobei der Schaumblock (6) wenigstens einen Hartschaum umfasst.
  3. Verfahren nach Anspruch 2, wobei der Hartschaum einen auf Polyurethan oder Polyisocyanurat basierenden Hartschaum umfasst.
  4. Verfahren nach Anspruch 2 oder 3, wobei der Hartschaum bei Raumtemperatur eine Druckfestigkeit von weniger als 300 kPa, bevorzugt weniger als 250 kPa aufweist.
  5. Verfahren nach einem der Ansprüche 2-4, wobei der Hartschaum bei Raumtemperatur eine Rückformungsrate von 90%, bevorzugt 95% oder mehr innerhalb eines Zeitraums von 90 Minuten nach einer Kompression um 20% hat.
  6. Verfahren nach einem der Ansprüche 2-5, wobei der Hartschaum eine Ausdehnungsrate von wenigstens 6%, bevorzugt wenigstens 10%, hat.
  7. Verfahren nach einem der Ansprüche 2-6, wobei der Hartschaum bei 100 °C eine Rückformungsrate von 90%, bevorzugt 95% oder mehr innerhalb eines Zeitraums von 90 Minuten nach einer Impression um 20% hat.
  8. Verfahren nach einem der Ansprüche 2-7, wobei der Hartschaum einen Lambda-Wert von < 0,030 W/mK hat.
  9. Verfahren nach einem der Ansprüche 2-8, wobei der Hartschaum eine Dichte von <100 kg/m3, bevorzugt <50 kg/m3 hat.
  10. Verfahren nach einem der Ansprüche 2-9, wobei der Hartschaum eine Wasseraufnahme von maximal 10 %, gemessen nach ISO 2896, hat.
  11. Verfahren nach einem der Ansprüche 2-10, wobei der Hartschaum ein geschlossenzelliger Schaum ist.
  12. Verfahren nach einem der Ansprüche 2-11, wobei der Block aus Schaummaterial einen Weichschaum umfasst.
  13. Verfahren nach Anspruch 12 , wobei der Weichschaum derart auf dem Hartschaum angeordnet ist, dass er zwischen dem Hartschaum und einem der Stege (4a, 4b) der Wärmebrücke (4) angeordnet ist, wenn der Block (6) aus Schaummaterial zwischen beiden Stegen (4a, 4b) eingeklemmt wird.
  14. Verfahren nach Anspruchs 1-13, wobei wenigstens einer der Stege (4a, 4b) der Wärmebrücke (4) auf seiner Oberfläche, die dazu ausgebildet ist, dem Block (6) aus Schaummaterial zugewandt zu sein, ein hiermit verbundenes Weichschaummaterial aufweist.
EP13166086.2A 2013-04-30 2013-04-30 Verfahren zur Montage eines Fensterprofils mit Isoliermaterial Not-in-force EP2799654B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13166086.2A EP2799654B1 (de) 2013-04-30 2013-04-30 Verfahren zur Montage eines Fensterprofils mit Isoliermaterial
BE2014/0290A BE1022432B1 (nl) 2013-04-30 2014-04-25 Methode voor het monteren van een raamprofiel dat isolatiemateriaal bevat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13166086.2A EP2799654B1 (de) 2013-04-30 2013-04-30 Verfahren zur Montage eines Fensterprofils mit Isoliermaterial

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EP2799654A1 EP2799654A1 (de) 2014-11-05
EP2799654B1 true EP2799654B1 (de) 2015-11-04

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BE (1) BE1022432B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756615A (zh) * 2018-07-14 2018-11-06 武汉宇添星化工材料有限公司 单桥注胶隔热铝型材结构及隔热铝型材制造工艺
CN110094137B (zh) * 2019-03-15 2020-08-28 山西鑫铭格节能科技股份有限公司 一种复合材料节能门窗型材
BE1027432B1 (de) * 2019-07-18 2021-02-15 Nmc Sa Isolierung von tür- und fensterrahmen
CN112576141A (zh) * 2020-12-31 2021-03-30 湖南金牛铝业有限公司 一种注胶铝型材及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3050779C2 (de) * 1980-04-25 1983-12-15 Helmar Dr.Dr. 8530 Neustadt Nahr Verfahren zur Herstellung eines w{rmeisolierenden Profilk¦rpers
DE3440710A1 (de) * 1984-11-07 1986-05-07 Theodor 8857 Gottmannshofen Straub Verfahren zur herstellung von isolierprofilen aus aluminium
ES2343094T3 (es) * 2008-01-16 2010-07-22 Alcoa Aluminium Deutschland, Inc. Perfil compuesto aislado con nucleo de aislamiento, asi como procedimiento para la fabricacion de un perfil compuesto de este tipo.
US8322090B2 (en) * 2009-01-13 2012-12-04 Ykk Corporation Of America Thermally efficient window assembly
ES1072278Y (es) * 2010-04-08 2010-09-14 Sopena Metales S L Carpinteria metalica para cerramientos con rotura de puente termico

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EP2799654A1 (de) 2014-11-05
BE1022432B1 (nl) 2016-03-30

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