EP2743421A1 - Facade or skylight, insulating bar and method for producing an insulating bar - Google Patents

Abstract

The wall surface or glazed roof (1) has post profile (2) above which glass line seals (5) are provided. A holding bar (7) is held between filling elements (6) above the glass line seals. An insulating web (10) made of two different materials is fixed to post profile via screw groove (4). A portion (11) of insulating web is made of harder material, and mounting portion is provided for fixing insulating web. The portion (11) of insulating web is provided with receptacle into which portion (12) made of softer material with high thermal insulation is inserted partially. An independent claim is included for a method for manufacturing the insulating web.

Description

The present invention relates to a facade or a light roof with the features of the preamble of claim 1, and a method for producing an insulating web.

The EP 1 754 841 discloses a support profile of a transom-post construction, in which rest padding elements on glass plant seals and between the filling elements an insulating web is provided. The insulating bar consists of an extruded plastic profile and engages over with two legs a sealing portion which is mounted on a screw groove. On the insulating bar a strip of a softer material is attached to the outside to increase the thermal insulation. A disadvantage here is that the assembly of the softer material to the insulation profile is relatively complex and also the heat insulation is only slightly improved by the arranged on the outside strip of softer material. In addition, the contour accuracy of the strip is low, so you have to work with large tolerances.

It is therefore an object of the present invention to provide a facade or a light roof, in which a simple-to-manufacture insulating bar is provided with high thermal insulation.

This object is achieved with a facade or light roof with the features of claim 1.

According to the invention, the insulating web comprises two different materials and has a part with a harder and softer material. The part of a harder material forms at least one recording, in which a part made of softer material with high thermal insulation is at least partially inserted. As a result, the softer material with high contour accuracy can be inserted into the receptacle and can therefore be manufactured with lower tolerances. The part made of harder material can also ensure the fixation of the insulating bar on a screw securely on a mounting portion, so that the insulating bar allows high thermal insulation and ease of installation.

According to a preferred embodiment of the invention, the part of softer material is arranged in a receptacle in the form of an open or closed cavity in the part of harder material. The receptacle on the harder part can be trough-shaped or cup-shaped and, for example, U-shaped, C-shaped or O-shaped in cross-section so that the receptacle at least partially surrounds the softer material, preferably by at least more than 180 °. This ensures a stable attachment of the softer material within the receptacle. In addition, one or more retaining elements may be provided in the receptacle, which project into the receptacle and are provided for fixing the softer material. As holding elements webs can serve, which then dig into the soft material.

Preferably, the part of softer material is foamed into the receptacle of the part of harder material. The foaming can already take place during or after the production of the insulating web, so that the softer material is permanently connected to the part made of harder material. The part of softer material may be formed as a profile and have a corresponding contour which can be inserted into the part of harder material.

For a high thermal insulation, the part of softer material extends over at least 60%, in particular at least 80%, of the length of the end faces of the filling elements. As a result, the thermal insulation is improved because in prior art solutions a part of softer material only over one short length based on the length of the end faces extend from the inside out.

In order to further improve the thermal insulation, the insulating web has on opposite sides in each case at least one sealing lip, which extends to an end face of the filling elements. Preferably, a plurality of sealing lips are arranged on each side, which divide the space between the insulating web and the end faces into individual chambers, which may have a different temperature level. The sealing lips are preferably made of the part of harder material, so that a positionally accurate arrangement of the sealing lips is made possible. It is also possible that the sealing lips with excess of softer material to produce, to provide an investment on the front page.

The heat transfer coefficient of the softer material is preferably in a range between 0.01 to 0.04 W / mK, in particular between 0.02 to 0.03 W / mK, so that a high thermal insulation can be achieved. The heat transfer coefficient for the harder material of the insulating strip is in a range of, for example, 0.15 W / mK to 0.3 W / mK. The harder material may at least partially be coated with a reflective coating to improve the thermal insulation.

The insulating web preferably has on an inner side a mounting portion and on an outer side a holding portion of the harder material, which are arranged at a distance and are connected to each other only via a web of softer material. This prevents a web from extending from an outer side of the insulating strip to an inner side, since the holding section is arranged on the outer side at a distance from the fastening section on the inner side. As a result, the thermal insulation is particularly high and it is possible that the attachment portion and holding portion take over mechanical functions, such as the prefixing of the filling elements. The distance between the attachment portion and the holding portion may be in a range between 0.5 cm to 3 cm, so that in this area no cold bridge is formed by a material portion of harder material. An outer web can rest on an outer side of a filling element on at least one side of the holding section, preferably a holding section is provided on each of the opposite sides, by means of which the filling elements can be prefixed.

According to a further embodiment of the invention, the attachment portion has two legs, which are fixed in a clamping manner on the screw groove. The two legs can surround the screw groove while U-shaped, so that the Schraubnut is covered by the legs and thus is arranged protected.

On the outside of the insulating web, the holding portion may preferably have a V-indentation. As a result, the indentation can serve as a centering aid for the penetration of fastening screws, which are screwed into the screw groove for fixing the retaining strip. By an additional material reinforcement in the region of the indentation or instead of the indentation, the retaining strip can also be fastened with a screw on the outside of the insulating strip. As a result, a thermal bridge is avoided by the retaining strip for Schraubnut by a continuous screw.

In a method according to the invention for producing an insulating web, a part made of a softer material with high thermal insulation is introduced, preferably foamed, into a substantially tubular receptacle on a part made of harder material. In this case, after the introduction of the material with high thermal insulation, the part made of harder material in a region of the tubular receptacle can be at least partially removed, for example, a narrow strip of the harder material can be removed so that an outer holding portion and an inner mounting portion spaced from each other are. The separation of such a strip can be facilitated by perforation, which are introduced in the part of harder material, so that then after the introduction of the material with high thermal insulation, a stripping of the strip can take place.

Figur 1

eine Schnittansicht durch ein Riegel- oder Pfostenprofil einer erfindungsgemäßen Fassade oder eines Lichtdaches gemäß einem ersten Ausführungsbeispiel.

Figuren 2 bis 5

mehrere Schnittansichten durch ein Riegel- oder Pfostenprofil gemäß weiterer Ausführungsbeispiele;

Figuren 6A und 6B

zwei Ansichten eines Isoliersteges für eine Fassade oder ein Lichtdach;

Figuren 7A und 7B

zwei Ansichten eines weiteren Isoliersteges für eine Fassade oder ein Lichtdach;

Figuren 8A bis 8F

mehrere Schnittansichten betreffend die Herstellung eines erfindungsgemäßen Isoliersteges;

Figuren 9A bis 9D

mehrere Schnittansichten bei der Herstellung einer weiteren Ausführungsform eines Isoliersteges;

Figur 10

eine Schnittansicht durch einen Teil aus härterem Material für einen erfindungsgemäßen Isoliersteg;

Figuren 11 und 12

zwei Schnittansichten durch Isolierstege gemäß weiterer Ausführungsbeispiele.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it:

FIG. 1

a sectional view through a bolt or post profile of a facade according to the invention or a light roof according to a first embodiment.

FIGS. 2 to 5

a plurality of sectional views through a bolt or post profile according to further embodiments;

Figures 6A and 6B

two views of an insulating bridge for a facade or a light roof;

FIGS. 7A and 7B

two views of another insulating web for a facade or a light roof;

FIGS. 8A to 8F

several sectional views relating to the preparation of an insulating web according to the invention;

FIGS. 9A to 9D

several sectional views in the manufacture of another embodiment of an insulating web;

FIG. 10

a sectional view through a part made of harder material for an insulating web according to the invention;

FIGS. 11 and 12

two sectional views through Isolierstege according to further embodiments.

In FIG. 1 a facade construction is shown, in which a bolt or post profile 2 is provided, on which grooves 3 are provided for the fixation of glass plant seals 5 on an outer side. Between the glass plant seals 5 a Schraubnut 4 is provided centrally on the bolt or post profile 2, which is made of metal, preferably aluminum, but can also be made of wood or a composite material.

At each glass contact seal 5 is in each case an edge of a filling element 6 in the form of an insulating glass, which are held on the outside via a retaining strip 7. The retaining strip 7 has at two edges in each case a seal 8 which rests on the edge of an outer side of the filling element 6 and the retaining strip 7 is fixed via a plurality of screws held in the screw 4 screws on the bolt or post section 2, so that the filling elements 6 by clamping the glass plant seals 5 and the seals 8 are fixed. The retaining strip 7 is also covered by a cover 9.

In the space between the filling elements 6, an insulating web 10 is arranged, which has a part 11 made of a harder material, in particular a plastic and a part 12 made of a softer material with high thermal insulation. The softer material 12 may be a foamed material, For example, be a PUR foam having a heat transfer coefficient between 0.02 to 0.03 W / mK.

The insulating bar 10 has over the part 11 of harder material on a mounting portion 13 which has two legs which engage around the screw groove 4 U-shaped. As a result, the insulating web 10 can be fixed in a clamping manner to the screw groove 4 and also protects it against the cold from the outside. On the part 11 made of harder material, a plurality of sealing lips 14 and 15 are further provided, which extend to the end faces of the filling elements 6, but are preferably arranged with play in order to facilitate the assembly. By the sealing lips 15 of the space between the insulating web 10 and the end faces of the filling element 6 is divided into a plurality of chambers in which different temperatures may be present. In the chambers are spaces with stagnant air, which improve the thermal insulation.

The part 11 made of harder material forms a U-shaped receptacle, to which the part 12 made of softer material with high thermal insulation is inserted. The softer material part 12 is substantially rectangular in cross-section and projects from the harder material over the part 11, the softer material part 12 extending substantially over the entire length of the end faces of the filling elements 6. With one end portion, the part 12 of softer material protrudes beyond the U-shaped receptacle of the part 11 of harder material.

In the FIGS. 2 to 5 is a similar facade construction as in FIG. 1 shown, so that the same reference numerals are used for the same components. In the facade construction shown there, only the insulating bar has been modified.

In FIG. 2 an insulating web 20 is provided which has a part 21 made of a harder material, which is attached via a mounting portion 23 with two legs U-shaped arranged outside of the screw 4. On the part 21 of harder material, a sealing lip 24 is further provided, which extends to an end face of a filling element 6. The harder material part 21 further has a holding portion 27 disposed on the outer side adjacent to the holding bar 7. Both on the holding portion 27 and on the part with the attachment portion 23, a U-shaped receptacle is formed, in which a part 22 is inserted made of softer material. The Part 21 of harder material with the attachment portion is spaced from the holding portion 27 and connected only via the part 22 of softer material, so that no cold bridges are formed by material portions of the harder material. On the holding portion 27 outwardly directed sealing lips 25 are also provided on the opposite sides, which are arranged on legs 26 and extend to the end faces of the filling elements 6.

In FIG. 3 a modified embodiment of an insulating web 30 is shown, which has a part 31 made of a harder material and a part 32 of softer material, wherein the part 32 of softer material is formed in cross-section substantially rectangular and over the entire length of the end faces of the filling elements. 6 extends. The harder material part 31 has a fixing portion 33 formed by two bendable legs which are inserted into the screw groove 4. Furthermore, a first sealing lip 34, which extends up to an end face of the filling elements 6, is formed on the fastening section 33. The harder material part 31 also has inwardly directed ribs 35 to which the soft material part 32 is fixed. The softer material portion 32 is sandwiched between two legs 36 of the harder material portion 31. The part 31 of harder material is formed in two parts, wherein two in cross-section U-shaped parts are connected to the legs 36 with each other, for example, locked together. It is possible to adjust the length of the insulating bar 30 with the two parts, so that the length of the insulating bar 30 can be adjusted depending on the thickness of the filling element 6, wherein the respective legs can be fixed by latching means in different positions together. The softer material portion 32 may then be loosely inserted into the interior space between the harder material portions or glued or foamed to one of the harder material portions.

In FIG. 4 another embodiment of an insulating web 40 is shown, which has a part 41 made of a harder material with a fixing portion 43 which has two legs which engage around the screw groove 4. On the part 41, respective sealing lips 44 are provided on opposite sides, which extend up to an end face of the filling elements 6. Distanced from the part 41 with the attachment portion 43, a holding portion 45 of a harder material is provided, which forms a U-shaped receptacle for a part 42 made of softer material. The part 42 is made of softer material formed substantially rectangular in cross-section and inserted with opposite end portions each in a U-shaped receptacle of the parts 41 and the holding portion 45. On the holding portion 45, outwardly projecting sealing lips 46 are formed on opposite sides. The holding portion 45 may be integrally formed with the retaining strip 7 in this embodiment, or glued to the retaining strip 7 or fixed mechanical bonding agent. It is also possible to form holding strip 7 and holding section 45 separately.

In FIG. 5 a further embodiment of an insulating web 50 is shown, which has an outer part 51 in the form of a harder material, wherein a fastening portion 53 is inserted in the form of a web in the screw groove 4. In the part 51 of harder material, an extruded part 52 made of softer material is inserted, in which hollow chambers 56 are formed. On an outer side of the part 51, a V-shaped profile 55 made of a harder material is provided which serves to guide screws which are screwed in the insulating web 50 and thereby pass through the hollow chambers 56. On the outside of the insulating web 50 sealing lips 54 are formed, which extend in the direction of the end face of the filling element 6.

In the Figures 6A and 6B two embodiments of Isolierstegen 60 and 60 'are shown, which have a different length. The insulating web 60 comprises a part 61 made of a harder material with a mounting portion 63 which has two U-shaped legs for engaging a screw groove. On the part 61, two sealing lips 64 are further formed, which extend to the end faces of the filling elements 6. Distanced from the part 61 is a holding portion 65 made of harder material, which forms a U-shaped receptacle for a part 62 made of softer material. The holding portion 65 further has two outwardly projecting webs 66, which can serve for the prefixing of the filling elements 6. The webs 66 may be coated on the facing to the filling element side with a reflective material to increase the thermal insulation. In a central region, the holding portion 65 has a V-shaped recess serving as screws, which are screwed into the holding bar 7 to be fixed in the screw groove 4.

In FIG. 6B the insulating web 60 is only longer formed, for which purpose the part 62 of softer material has a different cross-sectional contour. In addition, the holding portion 65 is slightly with the U-shaped legs arranged longer formed while the part 61 as in FIG. 6A is trained.

In the FIGS. 7A and 7B a further embodiment of an insulating web 70 is shown, in which a part 71 made of a harder material has a fastening portion 73 with U-shaped legs, which can be plugged onto a screw groove 4. The part 71 has two U-shaped legs, on which on the outside sealing lips 74 are formed, which protrude substantially perpendicular. Between the U-shaped legs, a diamond-shaped part 72 of softer material is foamed, which protrudes with an end portion 75 of the part 71. Also, the insulating bar 70 may be provided in different lengths, such as FIG. 7B shows. There, the part 71 'is shown with U-shaped legs of greater length, in which a part 72' made of softer material is inserted.

For the production of an insulating web 80, first a part 81 made of a harder material, in particular made of plastic, for example by extrusion. The part 81 made of harder material has a mounting portion 83 with U-shaped legs for attachment to the Schraubnut 4, wherein in Figure 8A the fixing portion 83 is integrally formed with an outer holding portion on which outwardly directed lands 85 protrude. On the outside, a V-shaped indentation 86 is further provided, as well as a leg 87, on which outwardly projecting sealing lips 84 are formed. The part 81 thus has on the opposite sides of two U-shaped sections, which, however, are interconnected only on one side. On this side, a foaming material for forming a part 82 is then arranged, which can be distributed over the entire surface and then according to the FIGS. 8B to 8D is foamed until it completely fills the area in the U-shaped receptacles and the in Figure 8D shown state is reached. The part 82 made of softer material is substantially rectangular in shape and inserted into the two U-shaped receptacles of the part 81 made of a harder material in a form-fitting and cohesive manner.

In order to avoid a cold junction between the outside and the inside, then in a region 88 a strip of the part 81 is removed from a harder material, so that then an outer holding portion and an inner mounting portion 83 are spaced from each other and only over the part 82 of softer Material are interconnected, as in FIG. 8B is shown. In FIG. 8F is the insulating bar 80 according to the view of Figure 8D shown, wherein a provided on the outside strip 180 is provided via two perforations 89 on the part 81 of harder material. The strip 180 can then be pulled off via the perforation 89, so that then a part 81 with a fixing portion 83 spaced from an outer holding portion with the webs 85 and the recess 86 is arranged. Optionally, the strip may remain for reinforcement of the part 81.

In the FIGS. 9A to 9D a further embodiment of a further insulating web 80 'is shown, in which, however, the leg 87 has been omitted in the region of the holding portion. In this respect, a U-shaped receptacle for a part 82 of softer material is formed on the part 81 'of harder material only adjacent to the attachment portion 83, while on the outside only two outwardly projecting webs 85 and a V-shaped recess 86 are provided , Also in this embodiment, the part 82 of softer material in the part 81 'can be foamed, as in the FIGS. 9A to 9D is shown. In this Isoliersteg 80 'forms a web of the part 81 of harder material, a bottom portion for the part 82 of softer material during the foaming, wherein at the end of the foaming process, the part 82 of softer material a surface 87' of the insulating web 80 'forms. Also in this insulating web 80 ', a portion of the bottom portion for foaming the insulating web 80' can be removed if necessary, to avoid a cold bridge.

In FIG. 10 another embodiment of an insulating web 90 is shown, in which only the part 91 is shown made of a harder material. The part 91 of harder material has a mounting portion 93 with U-shaped legs for clamping to a screw groove. On the opposite side two legs 94 are formed, which are arranged in a U-shape and are connected to each other via a bottom portion 96. At the bottom portion 96, two V-shaped retaining webs 97 are formed, which dig into the material during foaming of a material with high thermal insulation and thus provide increased strength. It is possible to provide one or more retaining elements 97 in the region of the receptacle of the part 91 of harder material. These holding elements 97 also serve as a screw guide or centering aid, wherein it is also possible to prevent cold spots, screwing the screw head up to the bottom portion 96. In addition, also material reinforcements may increase the strength when screwed through the bottom portion 96, for example, ledges may be provided on the bottom portion 96.

In FIG. 11 a further embodiment of an insulating web 100 is shown, in which the part 101 of harder material spaced from a holding portion 105 of harder material is arranged, wherein the part 101 and the holding portion 105 only over a part 102 of softer material, in particular of foamed material with each other are connected. The holding portion 105 has U-shaped legs and on the outside outwardly directed webs 106 which engage over the outside of the filling element 6. As a result, the insulating web 100 can be used for prefixing the filling elements 6.

In FIG. 12 is a modified embodiment of the insulating web 100 of FIG. 11 shown, wherein the insulating web 100 'is not completely filled in the holding portion 105, but a cavity 107 is provided. This material can be saved and by the formation of a cavity 107 can still be obtained a high thermal insulation. The cavity 107 may alternatively be filled with another material for thermal insulation, sound insulation, a fire retardant or a Intumenzstreifen.

LIST OF REFERENCE NUMBERS

1 facade 53 attachment section 2 Bar or post profile 54 sealing lips 3 groove 55 profile 4 screw groove 56 hollow chambers 5 Glass plant seals 60 Insulating web 6 filling element 61 Part made of harder material 7 retaining strip 62 Part made of softer material 8th poetry 63 attachment section 9 Cover 64 sealing lips 10 Insulating web 65 holding section 11 Part made of harder material 66 Stege 12 Part made of softer material 67 indentation 13 attachment section 70 Insulating web 14 sealing lip 71 Part made of harder material 15 sealing lip 71 ' Part made of harder material 20 Insulating web 72 Part made of softer material 21 Part made of harder material 72 ' Part made of softer material 22 Part made of softer material 73 attachment section 23 attachment section 74 sealing lips 24 sealing lip 75 end 25 sealing lip 80 Insulating web 26 leg 80 ' Insulating web 27 holding section 81 Part made of harder material 30 Insulating web 81 ' Part made of harder material 31 Part made of harder material 82 Part made of softer material 32 Part made of softer material 83 attachment section 33 attachment section 84 sealing lips 34 sealing lips 85 Stege 35 ribs 86 indentation 36 leg 87 leg 40 Insulating web 87 ' surface 41 Part made of harder material 88 Area 42 Part made of softer material 89 perforations 43 attachment section 90 Insulating web 44 sealing lips 91 Part made of harder material 45 holding section 92 Part made of softer material 46 sealing lips 93 attachment section 50 Insulating web 94 leg 51 Part made of harder material 96 bottom section 52 Part made of softer material 97 retaining element 100 Insulating web 100 ' Insulating web 101 Part made of harder material 102 Part made of softer material 103 attachment section 105 holding section 106 Stege 107 cavity 180 strip

Claims (15)

Facades (1) or light roof, with a transom or post profile (2) on which two spaced glass plant seals (5) are provided, against each of which a filling element (6) abuts, wherein the two filling elements (6) via a retaining strip (7) are held on the glass plant seals (5) and between the end faces of the filling elements (6) at least one insulating web (10, 20, 30, 40, 50, 60, 70, 80, 90, 100) is arranged, which at a Schraubnut (4 ) of the bar or post profile (2) is fixed, wherein the insulating web (10, 20, 30, 40, 50, 60, 70, 80, 90, 100) is made of at least two different materials and a part (11, 21 , 31, 41, 51, 61, 71, 81, 91, 101) of a harder material a fixing portion (13, 23, 33, 43, 53, 63, 73, 83, 93, 103) for fixing the insulating web (10 , 20, 30, 40, 50, 60, 70, 80, 90, 100) on the screw groove (4), characterized in that the part (11, 21, 31, 41, 51, 61, 71, 81, 91, 101) harder m material at least one recording forms, in which a part (12, 22, 32, 42, 52, 62, 72, 82, 92, 102) made of softer material with high thermal insulation is at least partially inserted. Facade (1) or light roof according to claim 1, characterized in that the part (12, 22, 32, 42, 52, 62, 72, 82, 92, 102) of softer material in a receptacle in the form of an open or closed cavity of the part (11, 21, 31, 41, 51, 61, 71, 81, 91, 101) of harder material is arranged. Facade (1) or light roof according to claim 1 or 2, characterized in that the part (12, 22, 32, 42, 52, 62, 72, 82, 92, 102) made of softer material is foamed into the receptacle of the harder material , Facade (1) or light roof according to one of the preceding claims, characterized in that the part (12, 22, 32, 42, 52, 62, 72, 82, 92, 102) of softer material is at least over 60%, preferably about extends at least 80% of the length of the end faces of the filling elements (6) Facade (1) or light roof according to one of the preceding claims, characterized in that the insulating web (10, 20, 30, 40, 50, 60, 70, 80, 90, 100) on the opposite sides in each case at least one Sealing lip (14, 15) which extends to an end face of the filling elements (6). Facade (1) or light roof according to one of the preceding claims, characterized in that the softer material has a heat transfer coefficient of 0.01 to 0.04 W / mK, in particular between 0.02 to 0.03 W / mK. Facade (1) or light roof according to one of the preceding claims, characterized in that the insulating web (10, 20) on an inner side an attachment portion (13, 23) and on an outer side a holding portion (65) made of the harder material which is spaced are arranged and now connected to each other via a web of softer material. Facade (1) or light roof according to one of the preceding claims, characterized in that the fastening section (13, 23, 33, 43, 53, 63, 73, 83, 93, 103) has two legs which are clamped to the screw groove (4 ) are fixed. Facade (1) or light roof according to claim 8, characterized in that the two legs of the screw groove (4) engage around in a U-shape. Facade (1) or light roof according to one of the preceding claims, characterized in that the insulating web (10, 20, 60) has a holding portion (65) which rests on at least one side of an outer web on an outer side of the filling element (6). Facade (1) or light roof according to one of the preceding claims, characterized in that a holding element (97) projecting into the receptacle for fixing the softer material is provided on the fastening section (93). Facade (1) or light roof according to one of the preceding claims, characterized in that the holding portion has a V-shaped recess (67, 86) on the outside. Insulating web (10, 20, 30, 40, 50, 60, 70, 80, 90, 100) for a facade or a light roof according to one of the preceding claims. A method of making an insulating ridge (80), wherein a substantially open or closed tubular receptacle on a part (81) of harder material, a part (82) of softer material with high thermal insulation is introduced. A method according to claim 14, characterized in that the part (81) of harder material is removed with the tubular receptacle at least partially after the introduction of the softer material again.

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