• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An assembly method of a window profile comprising an inner shell and an outer shell and an insulating cold bridge connecting both shells, said method comprising the steps of: (a) providing an inner and an outer shell; (b) providing two legs of insulating material that together will define the cold bridge; (c) clamping a slab of foam material between said legs, wherein said slab of foam is compressed in at least one dimension when clamped between the legs; (d) simultaneously and / or subsequently attaching said legs to the inner and outer shell while the slab of foam remains clamped between both legs.
    公开号:BE1022432B1
    申请号:E2014/0290
    申请日:2014-04-25
    公开日:2016-03-30
    发明作者:Mario Genetello；Joan Vermeersch；Matthias Willockx
    申请人:Recticel Nv；
    IPC主号:
    专利说明:

    Method for mounting a window profile that contains insulation material
    FIELD OF THE INVENTION
    The present invention relates to a method for mounting a window or door profile comprising an inner and an outer shell that are separated from each other by a thermal bridge. Such a profile construction is generally known for aluminum window or door profiles.
    BACKGROUND OF THE INVENTION
    Aluminum profiles generally comprise an inner and an outer shell of aluminum which are connected to each other by a thermal bridge. In most cases, the thermal bridge comprises two legs that each connect the inner and outer shell of the profile, a cavity being defined between the inner and outer shell and the legs of the cold bridge.
    DE 102010064034 describes an assembly method of such a profile, wherein before the legs of the thermal bridge are attached to the inner and outer shells, a slice of hard PU foam is glued to one of the legs of the thermal bridge. The size of this slab is chosen so that after the profile is assembled, the slab fills the cavity bounded by the cold bridge from one leg to almost the second leg, leaving a minimal free space between the slab and the leg. DE 102009046554 discloses a method wherein the slab of insulating material is attached to one of the legs of the cold bridge by clamping the insulating material between supports that are mounted on the leg.
    A drawback of the prior art is that the legs of the thermal bridge must be designed for attaching or sticking the insulating material thereto and that the insulating material must be attached to one of the legs of the thermal bridge prior to assembly. A disadvantage of fixing the slab of insulation material earlier is that the insulation material can be damaged during later processing and that fairly large material stocks of both legs of the thermal bridge must be maintained.
    From the foregoing it is clear that the need remains for an improved production method, which allows for optimized stock management and a high degree of freedom in the design of the legs of the thermal bridge, while maintaining the optimum insulation properties of the finished profile .
    Summary of the invention
    The present invention provides a solution to the aforementioned needs in the form of a window profile assembly method comprising an inner shell and an outer shell and an insulating thermal bridge connecting the two shells to each other, said method comprising the following steps: (a) providing an inner and an outer shell; (b) providing two legs of insulating material that together will define the thermal bridge; (c) clamping a slice of foam material between said legs, said slice of foam being compressed in at least one dimension when clamping between the legs; (d) simultaneously and / or subsequently attaching said legs to the inner and outer shell while the foam slab remains clamped between the two legs.
    Brief description of the invention
    The slab of foam material preferably contains a rigid foam based on polyurethane or polyisocyanurate, the rigid foam preferably having a compression resistance of less than 300 kPa, and preferably less than 250 kPa (measured in accordance with ISO 844).
    Furthermore, it is preferred that the rigid foam has a shape recovery percentage (recovery (%)) at room temperature and / or at 100 ° C of 90%, and preferably 95% or more, within a 90 minute period after 20% compression. It is even better if the rigid foam has an expansion rate, defined as the difference between recovery (%) at room temperature after 24 hours and immediate recovery (%) after 20% compression, of at least 6% or more, and even better of at least 10%.
    The hard foam used preferably has a lambda value of less than 0.030 W / mK (measured according to ISO 8301), and a density of less than 100 kg / m3, and preferably of less than 50 kg / m3.
    The water absorption of the hard foam used is preferably a maximum of 10% (measured according to ISO 2896).
    The rigid foam is preferably a closed-cell foam.
    In addition to the rigid foam, the slab of foam material can also contain a flexible foam material. This flexible foam material can be provided as a continuous layer on at least an outer surface of the hard foam material such that, when the slab of foam material is clamped between both legs, it makes at least partial contact with one of the aluminum profiles.
    According to yet another embodiment, at least one of the legs of the supplied thermal bridge has, on the surface intended to face the slab of insulating material, a flexible foam material attached thereto.
    Brief description of the figures
    Figure 1 represents a schematic cross-section of a profile mounted according to a method according to the present invention;
    Figure 2 schematically shows a method according to the present invention;
    Figure 3 shows an alternative embodiment of the profile in Figure 1;
    Figure 4 shows a non-exhaustive number of alternatives to the embodiment of the profile in Figure 1.
    Detailed description of the preferred embodiment
    Figure 1 shows a window or door profile 1 which comprises an inner shell 2 and an outer shell 3 which are rigidly connected by a cold bridge 4 which comprises two legs 4a and 4b. A cavity 5 is delimited by the inner and outer shell and the legs 4a and 4b of the cold bridge. This cavity is at least partially filled with a slice 6 of insulating foam material which extends over the entire width of the cavity that is delimited between the legs of the thermal bridge.
    The inner and outer shell are preferably made of metal, in particular of an aluminum alloy. The legs of the thermal bridge are generally made of a rigid plastic material such as: polypropylene, polyethylene, polyamide, polyurethane, acrylonitrile-butadiene-styrene or polyethylene terephthalate. In a method according to the present invention, both legs of the thermal bridge are separate and separate parts, i.e. they are not attached to each other before the profile is assembled by a method according to the present invention.
    The slab 6 of insulating material is preferably a rigid foam material based on polyurethane (PU) or polyisocyanurate (PIR).
    Hard foam is hereby defined as a foam that has a compression resistance of at least 15 kPa (measured according to ISO 844).
    The PU or PIR materials that are preferably used for the manufacture of the slab 6 for use in a method according to the present invention have the following properties:
    A compression resistance (hardness) at room temperature (21 ° C) and in an uncompressed state of less than 300 kPa, preferably less than 250 kPa;
    A shape recovery percentage at room temperature of 90%, preferably 95% or higher, in a period of 90 minutes, preferably 30 minutes, after 20% compression;
    A shape recovery percentage at 100 ° C of 90%, preferably 95% or higher in a 90 minute period, preferably 30 minutes after 20% compression;
    A lambda value of less than 0.030 W / mK.
    The shape recovery percentage is measured by compressing a block of foam with a size of 500 cm (length) * 50 cm (width) * 50 cm (height, hl) (after 24 hours in conditions of 21 + - 2 ° C and a relative humidity of 50 + - 10%) in the height direction, at a speed of 120 mm / min; release the block and after a certain time measure the height (h2) of the block: the recovery time corresponds to 100 * h2 / hl.
    The PU or PIR foam is preferably a closed-cell foam.
    More preferred PU or PIR foams have the additional properties of: a density lower than 100 kg / m3, preferably lower than 50 kg / m3, and more preferably lower than 35 kg / m3; a water absorption of up to 10% according to ISO 2896.
    Figure 2 schematically shows a method according to the present invention for mounting a window or door profile, the method comprising the steps of: (a) providing an inner shell 1 and an outer shell 2; (b) providing two legs 4a and 4b of insulating material that together will define the thermal bridge 4; (c) clamping a foam slab 6 between said legs 4a and 4b, said foam slab 6 being compressed in at least one dimension A when clamping between the legs; (d) simultaneously and / or subsequently attaching said legs 4a and 4b to the inner and outer shell 1 and 2, while the foam slab 6 remains clamped between both legs 4a and 4b to obtain the mounted window or door profile.
    When the foam slab 6 is clamped between the legs of the thermal bridge, the slab is slightly compressed to ensure that it remains in the right place between the legs that are kept at a mutual distance that almost corresponds to the distance between these legs in the mounted profile.
    The attachment of the legs to the inner and outer shells 1 and 2 is well known in the art and is usually carried out by sliding dovetail-like protrusions into appropriate grooves in the inner and outer shells at the ends of the legs.
    It is clear that the slab of foam material preferably extends over the entire length of the profile, or that different slabs are applied, one next to the other in the longitudinal direction of the profile, to obtain a mounted profile with a foam slab mounted therein. and which extends over almost the entire length of the profile.
    Since it is not necessary for the slab of foam material to be attached to one of the legs 4a or 4b in a method according to the present invention, no fasteners or fastening surfaces need be provided in or on these legs and their design can be optimized in terms of the stability of the mounted profile, the stiffness and the insulating properties. In addition, both legs can be identical, so that less stock is required and the assembly method of the profile becomes less complicated.
    According to an alternative embodiment, the foam slab may contain various foam materials, one of which is a hard foam as described above. Other foam materials that may form part of the foam slice are: a solid open-cell foam such as shape memory foams. Shape memory polymer foams are herein defined as foams that remain compressed (or deformed) if they are compressed at a temperature higher than the glass transition temperature (Tg) of the polymer and then cooled in their compressed or deformed state under Tg. They recover almost completely from their compressed state to their expanded state if they are heated to a temperature higher than Tg. The expanded state is the shape of the shape-memory material after it has been fabricated and before it has been compressed. The recovery of the foam to its expanded state is referred to by the term "shape memory" (see WO 2012 004 277).
    A flexible foam. Flexible foams are herein defined as foams that have a compression resistance of less than 100 kPa, preferably <75 kPa.
    Foam slabs comprising a hard foam and a flexible foam are preferred.
    The foams in the foam slabs can be arranged in different forms, as a continuous layer, an interrupted layer, as geometries with patterns, etc.
    A first example of such an embodiment comprising a foam slab with more than one type of foam is shown in Figure 3. In this example, the foam slab is a layered construction with at least one flexible foam layer 7 and a hard foam layer 8, the The flexible foam layer is oriented such that it is placed between the rigid foam layer 8 and one of the legs of the thermal bridge when the foam layer is clamped between both legs in accordance with a method according to the present invention.
    An advantage of such an alternative embodiment is that it is easier to clamp the slab of foam between the legs 4a and 4b of the bridge and that there is a risk of damage to the rigid foam because too much force is exerted on the legs to secure the slab. is even smaller, which minimizes the risk of loss of insulation. Furthermore, the flexible layer makes it possible to compensate for deviations in the thickness of the hard layer, deviations from the surface on the legs 4a, 4b or slight deviations in the dimensions of the inner and outer shells.
    It is noted that the flexible foam layer 7 need not be uninterrupted, but on the contrary can be designed according to a specific pattern that creates air pockets 9 or air ducts between the cold bridge legs 4a and / or 4b and the hard foam layer 8. Such a patterned design of the flexible layer is considered particularly useful if the flexible foam layer has insulating properties that are lower than the insulating properties of still air.
    As stated above, it is clear that instead of a two-layer slab, it is also possible to use three- or multi-layer slabs of insulating materials, or that other compositions of slabs of foam material can be used. A non-exhaustive number of examples is shown in Figure 4 where the slice is represented as clamped between the legs 4a and 4b of the cold bridge to clarify the location of the layers relative to these legs.
    According to another alternative embodiment, at least one of the legs 4a, 4b of the thermal bridge 4 - on the side facing the cavity of the mounted profile - comprises a flexible foam which is attached to it, for example with an adhesive. It is believed that such an alternative embodiment makes it easier to clamp the hard foam slab between the legs and can prevent unforeseen movements of the hard foam slab relative to the legs when it is clamped between them. This flexible foam can be in the form of a layer of flexible foam that extends longitudinally along the leg or can be present as a pattern of individual pieces of flexible foam material.
    FIG. 4.1 is a representation of a three-layer foam slab with a central layer of rigid foam and two outer layers of flexible foam, with each outer layer facing an opposite leg 4a, 4b of the thermal bridge. FIG. 4.2 represents a two-layer foam slab with a layer of rigid foam that, on one of its surfaces facing a leg 4a or 4b of the thermal bridge, has a pattern of flexible foam islands. FIG. 4.3 represents a foam slab that has a transverse cross-section with a core of hard foam material that is encased in a layer of flexible foam material. FIG. 4.4 shows a foam slab with a central layer of flexible foam and two outer layers of hard foam, with each outer layer facing an opposite leg 4a, 4b of the thermal bridge. In Figures 4.5 and 4.6, the foam slab comprises two outer layers of rigid foam with opposite faces that have such a profile that they fit into each other when one face is placed on the other face, with a layer of flexible foam applied between both hard foam layers. In FIG. 4.6, this flexible foam layer is only applied to a part of the interface of both hard foam layers. FIG. 4.7 shows an alternative in which a hard foam layer, which extends between both legs 4a and 4b of the thermal bridge, is flanked by flexible foam layers on the two sides that face the half shells of the aluminum profile. FIG. 4.8 shows a hard foam layer in the form of an X whose legs are clamped between the legs 4a and 4b of the thermal bridge. FIG. 4.9 shows an embodiment in which the foam layer contains two layers of hard foam, with sloping faces facing each other, and a central layer of flexible foam between both layers of hard foam. FIG. 4.10 shows an embodiment in which the foam slab contains two layers of hard foam with corresponding, sloping and facing surfaces, the hard layers, on their surfaces facing the half-shells of the aluminum profile, being flanked by layers of flexible foam . FIG. 4.11 relates to an alternative version with a hard foam layer that has surfaces - facing the cold bridge legs 4a and 4b - that have a profile with a pattern of open cavities filled with a flexible foam or with air. FIG. 4.12 shows yet another alternative embodiment, in which two L-shaped hard foam slabs are provided with a flexible foam slab between them.
    It should be noted that in the examples of Figures 3 and 4 and in particular in the examples of Figures 4.7 and 4.10, the flexible foam can be replaced by a foam with shape memory. For the case that a shape memory foam is used, this foam can preferably be applied in a compressed state at a temperature lower than its Tg, wherein during the after-treatment of the mounted profile (given example during lacquering at high temperatures above Tg of the shape memory foam) the shape memory foam may expand and therefore fill a remainder of the cavity.
    Instead of a shape memory foam, any foam material that expands in heat can be applied in these embodiments.
    权利要求:
    Claims (14)
    [1]
    Conclusions
    1. - An assembly method of a window or door profile comprising an inner shell and an outer shell and an insulating thermal bridge that connects both shells, said method comprising the following steps: (a) providing an inner and an outer shell ; (b) providing two legs of insulating material that together will define the thermal bridge; (c) clamping a slice of foam material between said legs, said slice of foam being compressed in at least one dimension when clamping between the legs; (d) simultaneously and / or subsequently attaching said legs to the inner and outer shell while the foam slab remains clamped between the two legs.
    [2]
    The method according to claim 1, wherein said foam slice comprises at least one hard foam.
    [3]
    The method according to claim 2, wherein the hard foam comprises a hard foam based on polyurethane or polyisocyanurate.
    [4]
    The method according to claim 2 or 3, wherein the hard foam has a compression resistance at room temperature of lower than 300 kPa, and preferably lower than 250 kPa.
    [5]
    The method of any one of claims 2-4 wherein the hard foam has a shape recovery percentage at room temperature of 90%, and preferably 95% or more, within a 90 minute period after 20% compression.
    [6]
    The method of any one of claims 2-5 wherein the hard foam has an expansion rate of at least 6%, and more preferably of at least 10%.
    [7]
    The method of any one of claims 2-6 wherein the hard foam has a shape recovery percentage at 100 ° C of 90%, and preferably 95% or more, within a 90 minute period after 20% compression.
    [8]
    The method according to any of claims 2-7 wherein the hard foam has a lambda value of <0.030 W / mK.
    [9]
    The method of any one of claims 2-8 wherein the hard foam has a density of <100 kg / m3, and preferably <50 kg / m3.
    [10]
    The method according to any of claims 2-9, wherein the hard foam has a water absorption of at most 10%, measured according to ISO 2896.
    [11]
    The method according to any of claims 2-10 wherein the hard foam is a closed-cell foam.
    [12]
    The method of any one of claims 2 to 11 wherein said slice of foam material comprises a flexible foam.
    [13]
    The method according to claim 12, wherein the flexible foam is arranged on the hard foam such that it is placed between the hard foam and one of the legs of the cold bridge when the slice of foam material is clamped between both legs.
    [14]
    The method according to claims 1-13 wherein at least one of the legs of the cold bridge, on the surface intended to face the slab of foam material, is attached a flexible foam material.
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    同族专利:
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    EP2799654A1|2014-11-05|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3016076A1|1980-04-25|1981-11-05|Helmar Dr.Dr. 8530 Neustadt Nahr|Thermally insulating profile - comprising insulation block lying between two foam resin layers within internally undercut metal extrusion faces|
    DE3440710A1|1984-11-07|1986-05-07|Theodor 8857 Gottmannshofen Straub|Process for producing aluminium insulating profiles|
    EP2080864B1|2008-01-16|2010-03-17|Alcoa Aluminium Deutschland, Inc.|Insulated profile with isolating core and method for producing such a profile|
    US8322090B2|2009-01-13|2012-12-04|Ykk Corporation Of America|Thermally efficient window assembly|
    ES1072278Y|2010-04-08|2010-09-14|Sopena Metales S L|METAL CARPENTRY FOR CLOSURES WITH THERMAL BRIDGE BREAK|CN110094137B|2019-03-15|2020-08-28|山西鑫铭格节能科技股份有限公司|Composite material energy-saving door and window section bar|
    BE1027432B1|2019-07-18|2021-02-15|Nmc Sa|DOOR AND WINDOW FRAME INSULATION|
    法律状态:
    2022-01-19| MM| Lapsed because of non-payment of the annual fee|Effective date: 20210430 |
    优先权:
    申请号 | 申请日 | 专利标题
    EP131660862|2013-04-30|
    EP13166086.2A|EP2799654B1|2013-04-30|2013-04-30|Method of assembly of a window profile comprising insulation material|
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