DE202012006555U1 - Insulating strip for a composite profile for window, door or façade elements and composite profile for window, door or facade elements with insulating strip - Google Patents

Abstract

An insulating web (10) for a composite profile (1) for window, door or facade elements, which extends in a longitudinal direction (z) and for connection to at least one profile part (31, 32) of the composite profile (1) extending in the Lengthwise (z) extends, is adapted with
an insulating rib body (20) extending in the longitudinal direction (z) and formed of a first insulating rib material, and
a foam body (40) which is formed from a second insulating web material and is connected to the insulating web body (20),
wherein the first insulating land material and the second insulating land material are substantially made of the same thermoplastic material, and the second insulating land material of the foam body (40) has a density that is 1/20 or less of the density of the first insulating rib material of the insulating rib body (20).

Description

The invention relates to an insulating web for a composite profile for window, door or facade elements and a composite profile for window, door or facade elements with insulating web.

Thermally insulated composite profiles for window, door or facade elements are known in the art. Typical composite profiles of this type have two metal profiles, which are connected by one or more plastic insulating bars and thermally separated on. Preferably, the metal profiles are made of aluminum or other light metals.

Examples of such composite profiles or insulating bars can be found in the DE 297 04 291 U1 , of the EP 1 347 141 A1 , of the DE 103 26 503 A1 , of the EP 1 932 998 A1 and the EP 2 389 708 A1 , 15 shows by way of example a section of such a composite profile in a cross-sectional view xy perpendicular to a longitudinal direction z. The composite profile has two aluminum profiles 31 . 32 through two insulating bars 10 interconnected and thermally separated. The insulating bars 10 and the aluminum profile parts 31 . 32 are connected by curling. The known from the prior art process of curling is in 16 shown in a cross-sectional view xy perpendicular to the longitudinal direction z of the composite profile or the insulating webs.

The insulating bars 10 each have a Isolierstegkörper 20 on, at its in the transverse direction x perpendicular to the longitudinal direction z located outer sides as curl heads 25 having trained longitudinal edges. The curling heads 25 have a substantially trapezoidal cross-sectional shape that is substantially complementary to the shape of one in the aluminum profile parts 31 . 32 formed groove. The groove is bounded by a bridge, also referred to as anvil 34 and a web also referred to as Einrollhammer 33 , The jetty 33 is deformed by plastic deformation by rollers, not shown, from the position shown in solid lines in the position shown in dashed lines (= curling). As a result, a connection z which is shear-resistant in the longitudinal direction is produced, optionally supported by a knurling of contact surfaces. At the same time the aluminum profile parts 31 . 32 positioned transversely x and y relative to each other and thermally separated.

As in 15 is good to see is the connection of two aluminum profile parts by two Isolierstege 10 in the 15 kind shown a hollow chamber 33 formed, which has a completely closed outer wall in cross section xy perpendicular to the longitudinal direction z.

As material for the insulating bars 10 or as a material for the Isolierstegkörper 20 is in the art z. B. PA66GF25 known, ie polyamide 6.6 with a glass fiber content of 25%.

As is known by way of example from the abovementioned publications, there are various approaches for subdividing the hollow chamber 33 by foam body, in particular the heat conduction of an aluminum profile part 31 to the other aluminum profile part 32 or obstruct by convection and / or radiation.

Furthermore, the composite profiles are often painted at relatively high temperatures.

The object of the invention is to provide improved insulating bars and composite profiles with regard to heat separation and / or painting.

This object is achieved by an insulating web according to claim 1 or 7 or a composite profile according to claim 10.

Further developments of the invention are specified in the dependent claims.

The formation of Isolierstegkörper and foam body of the substantially identical thermoplastic material results in several effects that complement each other combinatorially. On the one hand, the substantially identical thermoplastic materials can be easily joined by gluing or welding or another form of the compound by thermal action. On the other hand, the use of substantially identical thermoplastic material has advantages in recycling. In addition, the comparatively low density of the foam body allows a significant improvement in the thermal separation while maintaining the above-mentioned advantages. The above-mentioned advantages are also obtained in the addition of iron manganese oxide, at the same time improving the paintability.

Further features and expediencies will become apparent from the description of embodiments with reference to FIGS. From the figures show:

1 a first embodiment of a insulating web with foam body in a cross-sectional view;

2 a second embodiment of a insulating web with foam body in a cross-sectional view;

3 a third embodiment of a insulating web with foam body in a cross-sectional view;

4 a fourth embodiment of a insulating web with foam body in a cross-sectional view;

5 a fifth embodiment of a insulating web with foam body in a cross-sectional view;

6 a sixth embodiment of an insulating web with foam body in a cross-sectional view;

7 a seventh embodiment of a insulating web with foam body in a cross-sectional view;

8th an eighth embodiment of an insulating web with foam body in a cross-sectional view;

9 a ninth embodiment of an insulating web with foam body in a cross-sectional view;

10 a tenth embodiment of an insulating web with foam body in a cross-sectional view, wherein two of the insulating webs are shown with foam body in a combing arrangement of the foam body;

11 an eleventh embodiment of an insulating web with foam body in a cross-sectional view, in which a second insulating web is connected to the foam body;

12 a twelfth embodiment of an insulating web with foam bodies in a cross-sectional view, in which a second insulating web is connected to the foam bodies;

13 a thirteenth embodiment of an insulating web with foam body, in which the foam body is connected to the insulating web and another insulating web via package parts, in a cross-sectional view;

14 a fourteenth embodiment of an insulating web with foam body, in which the insulating web and the foam body are connected to a further insulating web via a clip connection, in a cross-sectional view;

15 a composite profile in a cross-sectional view; and

16 a curling operation in a cross-sectional view.

In 1 is a first embodiment of an insulating web 10 with foam body 40 shown. The insulating bar 10 has a Isolierstegkörper 20 on. The insulating bar 10 and the foam body 40 extend in a longitudinal direction z is shown with a constant cross section xy. In a transverse direction x, which is perpendicular to the longitudinal direction z, the insulating bar 10 at the longitudinal edges of his Isolierstegkörpers 20 designed as curling heads ends 25 on. The curling heads 25 have a trapezoidal shape for rolling into a complementary groove (see 15 . 16 ). At the transverse x sides of the rolling heads 25 are formed recesses for adhesive cords. These are only optional.

The foam body 40 is with the Isolierstegkörper 20 connected and is in a height direction y of the Isolierstegkörper 20 in front. In an assembled state of the composite profile is the foam body 40 on the side of the Isolierstegkörpers 20 arranged, that of the hollow chamber 33 is facing (see 15 ).

The foam body points in 1 a rectangular in cross-section xy shape. The foam body 40 may be adapted to its desired function cross-sectional shapes, which are not necessarily rectangular (see 6 ) exhibit.

The insulating bar 10 / insulating strip 20 is formed of a thermoplastic. In the embodiment shown, the insulating bar 10 / insulating strip 20 made of PA66 with a glass fiber content of 25% (GF25). The foam body is also made of polyamide, here made of PA6. For the purposes of this application means substantially the same or substantially identical material for insulating web and foam body, that the same type of plastic such. B. polyamide is used, ie z. B. in the case of polyamide, this polyamide or a polyamide blend / polyamide compound having a polyamide content of at least 50% is used. In this sense, so PA66GF25 for the insulating bar 10 and PA6 for the foam body 40 the substantially identical or identical thermoplastic material.

The foam body has a density that is by a factor 20 or more is smaller than the density of the material of the insulating bar. The foam body preferably has a density in the range of 45 to 55 kg / m ³ . By contrast, polyamides usually have a density in the range from 1048 to 1130 kg / m ³ . The foam is preferably closed-celled. The foam has a thermal conductivity in the range of 0.02 to 0.04 W / mK.

The thermoplastic material of the insulating web is preferably accompanied by a functional additive for improving the paintability. The additive is a metal oxide such as manganese oxide or copper oxide, preferably iron manganese oxide (FeMnO) with polyethylene (PE) as support material. The additive is included in the range of 0.5 to 3 wt%, more preferably 1.5 or 2 or 2.5 wt%, of the additive (without carrier material).

Other engineering thermoplastics as materials for the insulating web and the foam are possible, with polyamide or polybutylene terephthalate or polyamide-polyphenylene mixtures being preferred. More preferably, PA6 or PA66 or PBT or PA-PBE or PA4.10 or PA6.10 or PA6.12 or PA10.10 or PA11 is used. The material for the insulating bar 10 / insulating strip 20 preferably has a fiber addition in the range of 10 to 30%, preferably glass fibers, and particularly preferably in the range of 20 to 25%. Particularly preferred is PA66GF25. As material for the foam body PA6 is preferred.

At the in 1 the first embodiment shown are the insulating web 10 and the foam body 40 directly connected. The connection can be made by bonding by means of liquid adhesive, bonding with double-sided adhesive tape, welding or another connection by heat. Welding may be accomplished by heating one or both of the hot plate welding, mirror welding or infrared or laser or combination components. The polyamide foam can be rolled directly onto the Isolierstegkörper in a continuous process.

Other ways of connection, z. B. by clipping and / or jamming and / or hooking are in the 2 to 5 and 7 to 9 shown. At the in 2 shown second embodiment are guide webs 21 for guiding and positioning the foam body 40 provided, which then either by appropriate fit between the guide webs 21 which also act as guide walls 21 can be referred to, clamped, or fixed by gluing or connection by the action of heat. At the in 3 shown third embodiment are lugs 21n for hooking with the foam body 40 at the free ends of the guide walls 21 intended. At the in 4 4 are also noses 21n for holding by overlapping edges of the foam body 40 at the free ends of the guide walls 21 intended. At the in 5 shown fifth embodiment is a mandrel 22d with barbs on the contact surface of the insulating bar 10 with the foam body 40 intended. The thorn 22d can either be formed as a continuous web in the longitudinal direction z, or it can in the longitudinal direction z at predetermined intervals dome 22d be provided.

At the in 6 shown embodiment, already with regard to the shape of the foam body 40 has been addressed, the foam body in cross-section xy the shape of an arc or a U, the / with its free ends on the insulating bar 10 is attached. As a result, a cavity is closed in cross-section xy 41 limited, which in turn improves the thermal insulation.

In the 7 shown seventh embodiment shows an insulating bar with an integrally molded lid 23 , The lid can be hinged 23s for inserting the foam body 40 unfolded and then closed via a clip connection for holding / pinching the foam body.

At the in 8th embodiment shown are clip heads on the insulating bar 22k and / or clip recesses 22a intended. A foam body attachment part 42 , which is also formed from the substantially same thermoplastic material, has complementary clip heads 42k and / or clip recesses 42a on. The foam body 40 is with the foam body attachment part 42 firmly connected. This can be done by the already mentioned mounting options. At the in 8th shown embodiment offer gluing or bonding by heat. But it could also dome or other holding or clamping means are used.

At the in 9 Ninth embodiment shown are two foam body attachment parts 42dk / 42da provided on the one side with a barbed spine and on the other side to the clips heads / recesses 22a / 22k complementary clip recesses / heads have provided.

In 10 a tenth embodiment of the insulating bar is shown, which is a guide wall 21 has, on which a foam body 40 is attached. At predetermined intervals in the transverse direction x are two further foam body 40 on the same insulating bar 10 attached. In height direction y opposite this insulating bar 10 is an identical insulating bar 10 with three foam bodies 40 , however, provided in point-mirrored arrangement. The widths of the foam body 40 in the transverse direction x are dimensioned so that they are arranged in this arrangement as two opposing crests and combing relative to each other. Even if the corresponding aluminum profile parts 31 . 32 not shown, it is by comparison with 15 obviously that at Compound formed with the aluminum profile parts cavity 33 through the "combing" foam body 40 is divided and both convection and heat radiation are hindered. Of course, other numbers of foams and other forms of foams may be used.

In the in the 11 to 14 embodiments shown are two insulating bars 10 connected to a four-head bridge, ie to a four roll-up arrangement 25 ,

At the in 11 Shown embodiment, the two insulating bars 10 through a foam body 40 , which is firmly connected to two insulating bars, connected to the four-head bridge. The connection can be made by gluing or by heat. The not shown possibilities of connection by dome or jamming etc. are possible.

In the 12 The embodiment shown is a modification of the embodiment 11 , as several foam bodies 40 are connected to the two insulating bars. It is obvious that at the in 11 shown embodiment when arranged in a composite profile in the in 15 shown type the hollow chamber 33 through the foam body 40 in two sub-chambers 33a . 33b divided / separated. At the in 12 shown embodiment, there are four sub-chambers 33a . 33b . 33c . 33d passing through the three foam bodies 40 be separated.

At the in 13 shown thirteenth embodiment, two insulating bars 10 through two package parts 11 connected. Each package part 11 extends in the longitudinal direction z and has in cross section xy perpendicular to the longitudinal direction z two transverse struts, which are connected by an oblique connecting strut. The connection of the package parts 11 with the insulating bars 10 takes place by means of clip connections with clip recesses 22a and clip heads 22k at the insulating bars 10 , and complementary clip recesses and clip projections on the crossbars of the package parts 11 , Between the two package parts 11 is a foam body 40 arranged and connected to these either by pinching or by the mentioned types of fastening. This will create a variety of subchambers 33a . 33b1 . 33b2 . 33c . 33d1 . 33d2 and 33e formed when the corresponding four-head bridge in the in 15 shown type is used in a composite profile. The number and type of package parts, the foam body and the sub-chambers is of course not on the in 13 Limited number or shape shown.

At the in 14 fourteenth embodiment shown are the two insulating webs 10 through on guide walls 21a . 21k Clipped clip recesses and clip heads clipped. Between the guide walls 21a . 21k is a foam body 40 arranged, which in turn is connected by clamping and / or gluing, welding, etc. with one or both insulating bars.

For the embodiments of the 3 . 5 . 9 . 14 and similar embodiments, the foam body may include a prefabricated groove or a notch / cut for receiving the retaining lugs, as a space for the clip connection or as a counterpart of the barbs. This can be made by cutting, machining or by thermoforming. Is in 14 also exemplified.

For the embodiments of the 6 . 12 and similar embodiments, the cavities formed by the foam and web may preferably be designed such that their replacement thermal conductivity is similar to the thermal conductivity of the foam. This can be adjusted by the dimensions - especially the height - and / or by the emissivities of the surfaces of the foam body.

It is explicitly pointed out that all features disclosed in the description and / or the claims are regarded as separate and independent of each other for the purpose of original disclosure as well as for the purpose of limiting the claimed invention independently of the feature combinations in the embodiments and / or the claims should. It is explicitly stated that all range indications or indications of groups of units disclose every possible intermediate value or subgroup of units for the purpose of the original disclosure as well as for the purpose of restricting the claimed invention, in particular also as the limit of a range indication.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 29704291 U1 [0003]
• EP 1347141 A1 [0003]
• DE 10326503 A1 [0003]
• EP 1932998 A1 [0003]
• EP 2389708 A1 [0003]

Claims (13)

Insulating bar ( 10 ) for a composite profile ( 1 ) for window, door or facade elements, which extends in a longitudinal direction (z) and for connection to at least one profile part ( 31 . 32 ) of the composite profile ( 1 ), which extends in the longitudinal direction (z) is adapted, with an Isolierstegkörper ( 20 ) extending in the longitudinal direction (z) and formed of a first Isolierstegmaterial, and a foam body ( 40 ), which is formed from a second Isolierstegmaterial and with the Isolierstegkörper ( 20 ), in which the first insulating web material and the second insulating web material consist essentially of the same thermoplastic material and the second insulating web material of the foam body ( 40 ) has a density that is 1/20 or less of the density of the first insulating bar material of the insulating bar body ( 20 ). Insulating bar ( 10 ) according to claim 1, the foam body ( 40 ) with the Isolierstegkörper ( 20 ) is connected by gluing and / or welding and / or clipping and / or jamming and / or hooking. Insulating bar ( 10 ) according to claim 1 or 2, wherein the density of the second insulating material is in the range of 45 to 55 kg / m ³ . Insulating bar ( 10 ) according to one of claims 1 to 3, in which the foam body ( 40 ) consists of closed-cell foam. Insulating bar ( 10 ) according to one of claims 1 to 4, with a second insulating web ( 10 ) via a clip connection and / or the foam body ( 40 ) is connected to a 4-head bridge. Insulating bar ( 10 ) according to one of claims 1 to 5, wherein the first Isolierstegmaterial an additive is added, which consists of iron manganese oxide with support material polyethylene. Insulating bar ( 10 ) for a composite profile ( 1 ) for window, door or facade elements, which extends in a longitudinal direction (z) and for connection to at least one profile part ( 31 . 32 ) of the composite profile ( 1 ), which extends in the longitudinal direction (z) is adapted, with an Isolierstegkörper ( 20 ) extending in the longitudinal direction (z) and formed of a first Isolierstegmaterial, wherein the first Isolierstegmaterial an additive is added, which consists of iron manganese oxide with support material polyethylene. Insulating bar ( 10 ) according to one of claims 1 to 7, wherein the first insulating material is a technical thermoplastic, preferably a polyamide or a polybutylene terephthalate or a polyamide-polyphenylene mixture, more preferably PA6 or PA66 or PBT or PA-PPE, or PA4.10 or PA6.10 or PA10.10, optionally with fiber addition. Insulating bar ( 10 ) according to one of claims 5 to 8, wherein the additive is added to the first insulating web material in an amount of 0.5 to 3% by weight. Composite profile for window, door or facade elements, which extends in a longitudinal direction (Z), with at least one profile part ( 31 . 32 ) and at least one insulating web ( 10 ) according to one of claims 1 to 9, which extend in the longitudinal direction (Z), in which the at least one profile part ( 31 . 32 ) and the insulating bar ( 10 ) are connected by rolling. Composite profile according to claim 10, in which two profile parts ( 31 . 32 ) and two insulating bars ( 10 ) according to one of claims 1 to 9, which extend in the longitudinal direction (Z) and are connected by rolling such that between the two profile parts ( 31 . 32 ) and the two insulating bars ( 10 ) a hollow chamber ( 33 ) which has a closed circumference in a cross section (xy) perpendicular to the longitudinal direction (z), and one or more of the foam bodies ( 40 ) in the hollow chamber ( 33 ) are arranged. Composite profile according to claim 11, in which a plurality of intermeshing foam bodies are arranged in the hollow chamber ( 33 ) protrude. Composite profile according to Claim 11, in which the two insulating webs ( 10 ) by one or more foam bodies ( 40 ), with two insulating bars ( 10 ) are connected, and the hollow chamber ( 33 ) by the foam body (s) ( 40 ) in sub-chambers ( 33a . 33b . 33c . 33d ) is divided.

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