DE102011117170A1 - Insulating bridge and thermally insulated profile - Google Patents

Abstract

Shown and described is an insulating web (5, 5 ', 5' ', 5' '') for connecting two profile elements (2, 2 ', 2' ', 3, 3', 3 '') of a thermally insulated profile (1, 1 ', 1' '), preferably a window, a door, a gate and / or a facade, with at least two terminal connection strips (7) for connecting the insulating web (5, 5', 5 '') with the profile elements (2 , 2 ', 2' ', 3, 3', 3 ''). In order to enable a better relationship between the mechanical properties on the one hand and the thermal properties on the other hand relative to the thermally insulated profile, it is provided that in addition at least one hollow section section (11, 11 ', 11' ') and at least one solid section bar section (15, 15'). ), wherein the at least one hollow profile section (11, 11 ', 11' ') with a terminal block (7, 7') is connected, wherein the hollow chamber profile section (11, 11 ', 11' ') with the profile bar section (15, 15 ') is connected and wherein the terminal strips (7, 7') are connected to each other without any alternative via the profile bar portion (15, 15 ').

Description

The invention relates to an insulating web for connecting two profile elements of a thermally insulated profile, preferably a window, a door, a gate and / or a facade, with at least two terminal connection strips for connecting the insulating bar with the profile elements. The invention also relates to a thermally insulated profile, preferably a window, a door, a gate and / or a facade comprising two profile elements, an insulating material provided between the two profile elements and at least one insulating web connected at opposite ends to the two profiles.

Windows, doors, gates, facade elements and the like can be formed from thermally insulated profiles or have thermally insulated profiles. These profiles contain for the purpose of thermal insulation in their interior a heat-insulating material, such as a foamed plastic. In order to obtain a higher stiffness of the profiles, the profile elements must be connected to each other in addition to the insulation material via stiffening elements. To ensure that this does not affect the heat transfer resistance, care must be taken to ensure that the stiffening elements do not form cold bridges. The problem here is that more stable materials usually have a higher thermal conductivity, so that an increase in stiffness must be paid for regularly with a reduction in the heat transfer resistance.

There are basically two different types of isolation bars. Some isolation bars are designed as thin but massive profiles. Other isolation webs are designed as hollow profiles. The cavities or hollow chambers of the hollow sections to reduce the heat transfer through the insulating web. In general, there are many different isolation bars, each with different advantages and disadvantages. There is thus further need for optimization in this regard.

Therefore, the object of the present invention is to design the aforementioned and previously described in more detail insulating web and the thermally insulated profile in such a way and that with respect to the profile, a better relationship between the mechanical properties on the one hand and the thermal properties on the other.

This object is achieved with a Isoliersteg according to claim 1, characterized in that in addition at least one hollow profile section and at least one solid profile bar portion are provided, wherein the at least one hollow profile section is connected to a terminal block, wherein the hollow profile section is connected to the profile bar section and wherein the terminal strips without alternative the profile bar section are interconnected.

In addition, the aforementioned object is achieved by a thermally insulated profile according to claim 12, characterized in that the insulating web is an insulating web according to one of claims 1 to 11.

The invention has recognized that neither insulating webs in the form of hollow profiles, nor insulating webs without hollow profiles embody a superior design principle when it comes to an optimal combination of mechanical and thermal properties. Next, the invention has recognized that just in the combination of these two design principles can have a significant potential to better match the properties of the isolation webs or to improve overall, not by any combination, but by a very specific, namely the in Claim 1 specified, combination.

External forces are essentially introduced via the terminal strips in the insulating bar. Therefore, the mechanical requirements on the insulating bar in terms of stability and rigidity are particularly high. If the profile elements are exposed to different temperatures, a heat flow is transmitted from the corresponding profile element on the insulating bar and vice versa via the terminal strips. This heat transfer should be kept low to reduce the heat exchange between the profile elements. At higher temperatures there should be no heat accumulation, which could lead to a softening of the insulating bar.

The described mechanical and thermal requirements of the insulating bar in the terminal strips of the hollow section section is particularly well. On the one hand, the hollow chamber profile acts stiffening. On the other hand, the two wall elements of the hollow chamber profile section as a whole form a rather broad material cross section, preferably a wider material cross section than in the region of the profile bar section, whereby the stability and rigidity are also improved. If the sum of the wall thicknesses of the two wall elements of the hollow profile section is wider than the wall thickness of the profile bar, which will usually be the case, the hollow chamber profile section will regularly be preferred from a mechanical point of view, while the profile bar section will be preferred regularly from a thermal point of view.

The invention has further recognized that despite the overall good mechanical properties and based on the profile actually good thermal properties due to the provision of insulating hollow chambers is not appropriate to let pass through the hollow section section from a terminal block to the opposite terminal block. At least in a central region of the insulating bar a lower stability and rigidity than adjacent to the terminal block is usually required. It is therefore altogether advantageous to accept in the middle region of the insulating web inferior mechanical properties by making use of a solid profile bar section instead of a hollow section section there. The profile bar section requires significantly less space, so that at least in the middle region of the insulating bar instead of the hollow chamber profile section, an even better insulating material, such as a foamed plastic, can be provided. As a result, the insulating effect of the profile is improved overall. At the same time, however, where high stability and rigidity are actually required, namely adjacent to the connection strips, sufficient mechanical stability and strength are provided.

Based on the thermally insulated profile, which can be formed using the insulating web described, so on the one hand very good thermal properties can be achieved with an overall very high stability and rigidity of the profile on the one hand.

In the present case, a solid section bar section is understood as meaning a profile section of the insulating bar which does not define any internal hollow chambers, that is to say has a solid construction, and which, preferably in a cross section of the insulating bar, is rod-shaped. The profile bar section does not have to be rectilinear in this cross-section, ie without curvature, although this may generally be preferred in order to improve the rigidity. By a hollow chamber profile section, in contrast to the profile bar section, such a profile section is understood which defines at least one inner hollow chamber, that is to say ultimately designed as a hollow profile section. The hollow chamber is surrounded by at least two wall sections of the hollow chamber profile section. In addition, the hollow chamber preferably extends longitudinally to the insulating web.

In a first preferred insulating web, the at least two terminal strips are each connected to a hollow chamber profile section for the reasons discussed in detail above. The at least two terminal strips may be provided on the same side of the insulating bar. In a particularly preferred embodiment of the insulating web terminal strips may be provided at opposite ends of the insulating web, each adjacent to a hollow section section.

The then provided, at least two hollow chamber profile sections are preferably each connected to a section bar section, in turn, to achieve the best possible combination of stability and thermal insulation relative to the thermally insulated profile. In addition, this is preferably true not only for certain hollow chamber profile sections, but preferably for all hollow chamber profile sections of the insulating web. Alternatively or additionally, it is suitable for a structurally simple and from a thermal point of view favored insulating web, when the at least two hollow chamber profile sections are directly or indirectly connected to the same profile bar section.

In order to favorably influence the thermal requirements of the insulating web by providing space between the profile elements for an insulating material, the profile bar section should not be too short with respect to the length of the insulating web. Preferably, therefore, the profile bar portion extends at least over 20% of the length of the insulating bar.

So that the influence of the hollow chamber profile on the insulating web does not become too large and thus provides sufficient space for the profiled rod section and / or an additional, insulating material, it makes sense if the hollow chamber profile section extends over less than 40%, preferably less than 30%, more preferably less than 20%, the length of the insulating web extends. The length of the hollow chamber profile section can also be dependent on whether hollow chamber profile sections are provided on opposite connection strips. In that case, it is generally more favorable if the length of each individual hollow-chamber profile section is smaller. This, too, is derived from the previously discussed in detail mechanical and thermal properties of a hollow chamber profile section on the one hand and a profile bar section on the other.

In order to improve the thermal properties of the insulating web, the at least one hollow profile section can be arranged in each case on the first half of the length of the insulating web. In other words, the at least one hollow-chamber profile section does not protrude beyond the median plane between the two terminal strips. Centered on the insulating web so a profiled rod section is provided which creates space between the profile elements for a relation to the insulating better insulating material and has a smaller material cross-section for the heat transport as the hollow chamber profile section.

To improve the stability of the insulating web, the at least one hollow profile section adjacent to the profile bar section can taper at an angle of 35 ° to 55 °. In other words, the hollow chamber profile section can leak at this angle and pass into the profile bar section. It is particularly preferred in this context if said angle is substantially 45 °. The hollow chamber profile section is therefore preferably rather gradually than abruptly in the profile bar section.

Alternatively or additionally, the at least one hollow profile section adjacent to the terminal block at an angle between 70 ° and 110 ° widen. Since a good stability of the insulating web is provided adjacent to the terminal strip, so a relatively large volume of the hollow section section can be obtained without too much discontinuity in the profile of the insulating over a short distance. Particularly good results could be obtained if said angle between 85 ° and 95 °, in particular about 90 °, was.

From a constructive point of view and for connecting further functional sections of the thermally insulated profile to the insulating web, the profiled rod section can be arranged laterally offset from a connecting straight line between the two terminal strips. The profile bar section can then define a uniform connection plane of the insulating bar.

So that the insulating web can be used for the use of further functional or mechanical synergies, at least one hollow-chamber profile section and / or at least one profiled rod section can have a functional profile section. The functional profile section can serve for the stability of the insulating web and the connection or the interaction with adjacent functional sections of the thermally insulated profile. Therefore, the at least one functional profile section may preferably extend laterally to the remaining insulating web and / or protrude laterally outward from the remaining insulating web.

For better connection to the profile elements and to increase the rigidity of the insulating web, the terminal strips can have a, preferably dovetailed, expansion for attachment in a groove of a profile element.

In order to be able to easily manufacture the at least one hollow section section with a particularly small hollow chamber, the at least one adjacent terminal strip can be formed in two parts, wherein the two parts of the terminal block are connected to opposite wall elements of the hollow chamber profile section. It then results, for example, a gap, starting from the hollow chamber of the hollow profile section through the adjacent terminal block.

Simple and inexpensive, the insulating bars can be formed as an extruded profile. As a material from a thermal point of view preferably a plastic in question, in the case of an extruded profile, preferably thermoplastic.

With regard to the thermally insulated profile, it is preferable if two insulating webs are provided and the insulating webs define an insulation chamber filled by a, preferably foamed, insulating material. The insulating material can be inserted into the insulation chamber and / or attached to at least one insulating web.

As a result, the thermal insulation of the entire profile can be improved. From a constructive point of view and for a quicker and easier assembly, it makes sense if the two insulating bars are constructed substantially identical.

The invention will be explained in more detail with reference to a drawing illustrating only embodiments. In the drawing shows

1 an inventive, thermally insulated profile in a longitudinal section in a schematic representation,

2 A first embodiment of an insulating web in a cross section,

3 A second embodiment of an insulating web in a cross section,

4 A third embodiment of an insulating web in a cross section,

5A B is a fourth embodiment of an insulating web in a cross section and

6 Detailed representations of a second and third inventive, thermally insulated profile in a cross section.

In the 1 is schematically a thermally insulated profile 1 shown, the two profile elements 2 . 3 Includes, over two outer insulating bars 5 connected to each other. The profile elements 2 . 3 can be formed of a metallic material, preferably aluminum, while the insulating webs 5 can be made of plastic extruded profiles. The profile elements 2 . 3 point to their connection with the insulating bars 5 groove 6 on, in the terminal strips 7 the insulating bars 5 are introduced. The grooves 6 and terminal strips 7 are in the illustrated and so far preferred thermally insulated profile 1 formed corresponding to each other and formed in the present dovetail shape. In addition, the grooves form 6 and the insulating bars 5 a flat outer finish of the thermally insulated profile 1 , The one of the profile elements 2 . 3 and the insulating bars 5 enclosed space 8th is at least substantially with an insulating material 10 filled. Preferably, the insulating material is 10 a foamed plastic, in particular polyurethane.

In the 2 is an insulating bar 5 represented as he at the in 1 represented profile 1 has been used. directly to the terminal strips already described 7 , which the opposite ends of the insulating bar 5 define each closes a hollow section section 11 at. This divides the wall thickness of the terminal block 7 on, leaving two wall elements 12 . 13 arise through a gap or cavity 14 spaced apart from each other. These two wall elements 12 . 13 run initially, ie starting from the terminal strips 7 at an angle of about 90 ° apart.

At the other end of each hollow section section 11 run the two wall elements 12 . 13 towards each other again, at an angle of about 45 °. With the union of the two wall elements 12 . 13 At the same time each hollow section section goes 11 in a massive profile bar section 15 without hollow chambers over. In the illustrated and so far preferred insulating web 5 go both hollow profile sections 11 in one and the same profile bar section 15 over, but preferably the wall elements 12 . 13 together a larger area of material cross-section based on the material of the insulating bar 5 provide as the profile bar section 15 ,

The profile bar section 15 also extends in a direction perpendicular to the plane of the drawing. In the in the 2 illustrated cross-section of the insulating bar 5 has the profile bar section 15 a rod-shaped appearance. The profile bar section 15 and the hollow chamber profile sections 11 are aligned with each other and form a common outer plane 16 ,

The profile section 15 extends in the illustrated and so far preferred insulating web 5 over about 30% of the length of the insulating bar 5 ie the distance between the outer ends of the terminal strips 7 , The two Holkammerprofilabschnitte 11 each extend over about 10% -25% of the length of the insulating bar 5 , The remaining part of the insulating bar 5 is through the terminal strips 7 educated.

The Indian 3 presented us in this respect preferred Isoliersteg 5 ' corresponds in a basic structure regarding the terminal strips 7 , the hollow profile sections 11 and the profile bar section 15 in the 2 illustrated insulating bar 5 , In addition, the insulating bar points 5 ' but still on the one hand from the profile bar section 15 and on the other hand of one of the two hollow chamber profile sections 11 outwardly facing functional profile sections 17 . 18 on. The functional profile sections 17 . 18 wear at their free ends hook sections 19 . 20 in order to interact with other profile components and / or connected, for example.

In the 4 is an insulating bar 5 '' shown, its terminal strips 7 the terminal strips 7 in the 2 and 3 illustrated insulating bars 5 . 5 ' correspond. When in the 4 illustrated insulating bar 5 '' are adjacent to the terminal strips 7 also in each case a hollow chamber profile section 11 ' . 11 '' connected. The hollow chamber profile sections 11 ' . 11 '' However, they are different from each other. During the a hollow section section 11 ' extends over about 20% -30% of the length of the insulating web, the other hollow section section extends 11 '' over about 30% -40% of the length of the insulating bar.

Adjacent to the terminal strips 7 form the hollow chamber profile sections 11 ' . 11 '' two wall elements each 12 ' . 12 '' . 13 ' . 13 '' , of which in each case one approximately in the longitudinal direction of the insulating web 5 '' extends while approximately at an angle of 90 ° from the one wall element 13 ' . 13 '' at least initially the other wall element 12 ' . 12 '' extends. At the inner end of the respective hollow chamber profile section 11 ' . 11 '' are the outer wall elements 12 ' . 12 '' in alignment with the between the hollow chamber profile sections 11 ' . 11 '' provided profile bar section 15 ' aligned. The inner wall elements 13 ' . 13 '' Run at an angle of about 45 ° to this common plane 16 ' and then go into the profile bar section 15 ' above.

A wall element 12 '' in the 4 illustrated and so far preferred Isolierstegs 5 '' has an S-shaped curvature 21 on. However, it is also possible for no or several S-shaped curvatures to be provided, which preferably correspond to further profile components.

In the 5A and 5B is an insulating bar 5 '' shown, which is a modification of the insulating web 5 according to 2 is. It is therefore only on the differences to the insulating bar 5 according to 2 received. If required, these features could also be provided on other insulating bars.

At the insulating bar 5 ''' of the 5A and 5B are the terminal strips 7 ' formed in two parts, namely the terminal strips 7 ' essentially along the insulating bar 5 ''' divided in two. Each of the two parts of the terminal blocks 7 ' is with another wall element 12 . 13 of the respective adjacent hollow chamber profile section 11 connected. In this way, the production of cavities 14 of the hollow chamber profile sections 11 ''' simplified. The division of the terminal strips 7 ' If necessary, it can also help to compensate for tensions caused by temperature differences.

In the 6 are details of two about a sealing element 22 interconnected, thermally insulated profiles 1' . 1'' shown. The two thermally insulated and so far preferred profiles 1' . 1'' have the previously in the 2 to 4 illustrated and so far described insulating bars 5 . 5 ' . 5 '' on.

Each of the two thermally insulated profiles 1' . 1'' comprising two profile elements 2 ' . 2 '' . 3 ' . 3 '' the over two insulating bars 5 . 5 ' . 5 '' connected to each other. The profile elements 2 ' . 2 '' . 3 ' . 3 '' and the insulating bars 5 . 5 ' . 5 '' each closing a room 8th' . 8th'' one with an insulating material 10 ' is essentially completed. The used insulating bars 5 . 5 ' . 5 '' are formed differently. An outer insulating bar 5 forms a flat, outer surface, while other insulating bars 5 ' outside functional profiles 17 . 18 Wear, extending from the insulating bridge 5 ' extend outward and interact with other profile components. At one of the insulating bars 5 ' is accordingly the sealing element 22 fixed, which sealing on the other thermally insulated profile 1'' is applied. To form a corresponding sealing surface, the opposite insulating web 5 '' the other thermally insulated profile 1'' a paragraph in the form of an S-shaped curved outer contour 21 in the region of one of the hollow chamber profile sections 11 '' on. Even with the other, right profile shown 1'' is a thermal insulation in the of the two Isolierstegen 5 ' . 5 '' and the two corresponding profile elements 2 '' . 3 '' enclosed space 8th'' intended.

Claims (15)

Insulating bar ( 5 . 5 ' . 5 '' . 5 ''' ) for connecting two profile elements ( 2 . 2 ' . 2 '' . 3 . 3 ' . 3 '' ) of a thermally insulated profile ( 1 . 1' . 1'' ), preferably a window, a door, a gate and / or a facade, with at least two terminal connection strips ( 7 ) for connecting the insulating web ( 5 . 5 ' . 5 '' ) with the profile elements ( 2 . 2 ' . 2 '' . 3 . 3 ' . 3 '' ), characterized in that in addition at least one hollow section section ( 11 . 11 ' . 11 '' ) and at least one solid profile bar section ( 15 . 15 ' ), wherein the at least one hollow profile section ( 11 . 11 ' . 11 '' ) with a terminal block ( 7 . 7 ' ), wherein the hollow chamber profile section ( 11 . 11 ' . 11 '' ) with the profile bar section ( 15 . 15 ' ) and the terminal blocks ( 7 . 7 ' ) without alternative over the profile bar section ( 15 . 15 ' ) are interconnected. Insulating bridge according to claim 1, characterized in that the at least two terminal strips ( 7 . 7 ' ) each with a hollow chamber profile section ( 11 . 11 ' . 11 '' ) are connected. Insulating web according to claim 1 or 2, characterized in that at least two hollow chamber profile sections ( 11 . 11 ' . 11 '' ), preferably all hollow chamber profile sections ( 11 . 11 ' . 11 '' ), with a, preferably the same, profile bar section ( 15 . 15 ' ) are connected. Insulating web according to one of claims 1 to 3, characterized in that the profile bar section ( 15 . 15 ' ) at least over 20% of the length of the insulating strip ( 5 . 5 ' . 5 '' ). Insulating web according to one of claims 1 to 4, characterized in that the hollow chamber profile section ( 11 . 11 ' . 11 '' ) is less than 40%, preferably less than 30%, more preferably less than 20%, of the length of the insulating strip ( 5 . 5 ' . 5 '' . 5 ''' ). Insulating web according to one of claims 1 to 5, characterized in that the hollow chamber profile section ( 11 . 11 ' . 11 '' ) on the first half of the length of the insulating strip ( 5 . 5 ' . 5 '' . 5 ''' ) is arranged. Insulating web according to one of claims 1 to 6, characterized in that the at least one hollow profile section ( 11 . 11 ' . 11 '' ) adjacent to the profile bar section ( 15 . 15 ' ) at an angle of 35 ° to 55 °, preferably about 45 °, tapers. Insulating web according to one of claims 1 to 7, characterized in that the at least one hollow profile section ( 11 . 11 ' . 11 '' ) adjacent to the respective terminal block ( 7 ) at an angle between 70 ° and 110 °, preferably between 85 ° and 95 °, in particular about 90 °, widens. Insulating bridge according to one of claims 1 to 8, characterized in that the profile bar section ( 15 . 15 ' ) laterally offset to a connecting line between the two terminal strips ( 7 . 7 ' ) is arranged. Insulating web according to one of claims 1 to 9, characterized in that at least one hollow section section ( 11 ) and / or at least one profile bar section ( 15 ) one, yourself preferably laterally to the remaining insulating web ( 5 ' ) extending functional profile section ( 17 . 18 ) having. Insulating bridge according to one of claims 1 to 10, characterized in that the terminal strips ( 7 . 7 ' ), preferably a dovetail-shaped, expansion for attachment in a groove ( 6 ) of a profile element ( 2 . 2 ' . 2 '' . 3 . 3 ' . 3 '' ) exhibit. Insulating bridge according to one of claims 1 to 11, characterized in that at least one terminal block ( 7 . 7 ' ) is formed in two parts and that the two parts of the terminal block in each case with one of opposite wall elements ( 12 . 13 ) of the hollow chamber profile section ( 11 . 11 ' . 11 '' ) are connected. Insulating web according to one of claims 1 to 12, characterized in that the insulating webs ( 5 . 5 ' . 5 '' . 5 ''' ) are formed by an extruded profile, preferably of a thermoplastic material. Thermally insulated profile ( 1 . 1' . 1'' ), preferably a window, a door, a gate and / or a facade, comprising two profile elements ( 2 . 2 ' . 2 '' . 3 . 3 ' . 3 '' ), one between the two profile elements ( 2 . 3 ) provided insulating material ( 10 . 10 ' ) and at least one at opposite ends with the two profiles ( 2 . 3 ) connected isolation web ( 5 . 5 ' . 5 '' . 5 ''' ), characterized in that the insulating web ( 5 . 5 ' . 5 '' . 5 ''' ) an insulating web ( 5 . 5 ' . 5 '' . 5 ''' ) according to one of claims 1 to 13. Thermally insulated profile according to claim 14, characterized in that two insulating webs ( 5 . 5 ' . 5 '' . 5 ''' ) are provided and that, preferably identical, insulating bars ( 5 . 5 ' . 5 '' . 5 ''' ) one by an insulating material ( 10 . 10 ' ) preferably substantially filled space ( 8th . 8th' . 8th'' ) define.

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