Facade or skylight with a mullion or transom profile

The insulating strip with a monolithic intumescent base body and secure fixation mechanism addresses the challenge of heat penetration in facades by expanding to form a heat barrier, ensuring easy installation and effective thermal insulation up to 1,000°C.

EP4310267B1Active Publication Date: 2025-10-22HYDRO BUILDING SYSTEMS LUEDENSCHEID GMBH
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Patent Information

Application Number
EP2023183774
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-07-18
Filing Date
2023-07-06
Publication Date
2025-10-22
Estimated Expiration
2043-07-06

AI Technical Summary

Technical Problem

Existing facade and skylight designs fail to effectively prevent heat penetration from fires, particularly in post-and-beam constructions, and existing insulating solutions are not easily installable or secure.

Method used

An insulating strip with a monolithic base body made of intumescent material, featuring clamping and holding areas with different material properties, is designed to securely fit into a screw groove, expanding to form a heat barrier upon exposure to high temperatures, ensuring easy installation and secure fixation.

Benefits of technology

The insulating strip effectively prevents heat penetration by expanding to seal gaps between glass panes, providing high thermal insulation and secure fixation, even at high temperatures up to 1,000°C, while being easy to install.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a facade or skylight (1) with a mullion or transom profile (2) on which two spaced-apart glass sealing gaskets (3) are provided, against which a filling element (4), in particular in the form of a panel or a glass pane, rests. The two filling elements (4) are held on the glass sealing gaskets (3) by a retaining strip (5), and an insulating strip (6) is arranged between the end faces of the filling elements (4), which is fixed to a screw groove (7) of the mullion or transom profile (2). The insulating strip (6) has a base body (8), in particular monolithic, made of an intumescent material. The base body (8) of the insulating strip (6) has a clamping area (9) facing the screw groove (7) with opposing clamping ribs, between which the screw groove (7) is clamped or can be received, at least partially and / or in sections.Furthermore, the base body (8) of the insulating strip (6) has a retaining area (10) facing the retaining strip (5) with two opposing retaining webs, between which an insertion channel (16) is formed for receiving a screw (11) that is screwed or is to be screwed into the screw groove (7).
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Description

[0001] The present invention relates to a facade or a skylight in fire protection design.

[0002] In particular, the invention relates to an insulating strip or insulator for a post / transom façade construction consisting of profiles with enclosed surface elements, in particular glass panes, preferably fire-resistant glass panes, which can be sealingly applied to the profiles of the transoms or posts of the post / transom façade construction. The insulating strip or insulator is provided in the gap formed between the surface elements lying on a profile of the transoms or posts.

[0003] Post-and-beam constructions are commonly used in facade construction. These consist of a metal frame whose frame sections are fitted with glass panes or other filling or surface elements, such as infill panels. On the building side, the metal frame consists of main profiles (posts) and transom profiles (transoms) extending transversely or diagonally to them. On the outer side, the metal frame consists of cover profiles that cover the edges of the panes and are screwed to the main profiles or transom profiles.

[0004] Furthermore, insulators or insulating strips made of a non-metallic material are provided, particularly in the gaps that form between the glass panes, in order to prevent thermal bridges from the outside to the inside.

[0005] For example, the document EP 07 02 114 A relates to such a construction in which an insulator or insulating body is attached to the post between the glass panes that rest on a post and form a gap.

[0006] From the outside, a pressure strip covering the gap is attached to the insulator, which rests on the surface elements and which, with a plastic seal interposed, rests on the surface elements.

[0007] A similar facade construction is also known from the document EP 1 452 657 A, in which an insulating block forming the seal is provided with plastic lips reducing the lateral free space.

[0008] Document EP 1 8325 084 A discloses a facade according to the preamble of claim 1.

[0009] The object of the present invention is to create a facade or a skylight in which, even in the event of a fire, the heat generated by the fire cannot penetrate to the side facing away from the fire, taking certain criteria into account, whereby the mullion / transom facade construction can withstand the heat.

[0010] In particular, an insulating strip for the gap between the end faces of the surface elements of the facade or the skylight should be specified, which can be installed particularly easily and reliably.

[0011] The object underlying the invention is solved by the subject matter of independent patent claim 1, wherein advantageous developments of the invention are specified in the dependent claims.

[0012] Accordingly, the invention particularly relates to a facade or skylight with a transom and / or mullion profile, on which two spaced-apart glass seals are provided, each of which bears a filling element, particularly in the form of a panel or a glass pane. The two filling elements or glass panes are held to the glass seal by a retaining strip, with an insulating strip arranged between the end faces of the filling elements or glass panes. The insulating strip is fixed to a screw groove in the transom or mullion profile.

[0013] With regard to the insulation strip, the invention provides for it to have a particularly monolithic base body made of an intumescent material. The base body of the insulation strip has a clamping area facing the screw groove with opposing clamping webs, between which the screw groove is clamped or can be clamped, at least partially and / or in certain areas.

[0014] Furthermore, it is provided according to the invention that the base body of the insulation strip has a holding area facing the holding strip with two opposing holding webs, between which an insertion channel is formed for receiving a screw screwed or to be screwed into the screw groove.

[0015] The intumescent material of the base body is a relatively soft material with high thermal insulation properties. Due to this softness, the base body of the insulation strip can be securely fixed to the screw groove. The soft material of the base body can be clamped to the screw groove with high contour accuracy and can therefore be manufactured with tight tolerances. Overall, secure fixation of the insulation strip to the screw groove is guaranteed, so that the insulation strip offers high thermal insulation and is easy to install. In particular, the intumescent material of the base body is selected so that the base body can be clamped to the screw groove with high contour accuracy.

[0016] The term "intumescent material" used herein refers to a material that expands or swells when exposed to heat, resulting in an increase in volume of the insulating strip's base body, particularly without chemical transformation. In particular, the intumescent material foams up when exposed to heat, forming a light insulating layer that acts as a heat barrier.

[0017] The simplest possible installation of the insulation strip is also provided because, according to the invention, the insulation strip has a receiving strip which is connected or connectable to the holding area of ​​the base body and which is made of a material different from the material of the base body, in particular plastic material, wherein the material of the receiving strip is a harder material than the material of the base body.

[0018] The receiving strip made of the harder material preferably has a holding area which is at least partially or regionally received or receivable between the holding webs of the base body, in particular in a clamping manner, and an opposite receiving area which has a receiving groove for at least partially or regionally receiving a screw which is screwed or is to be screwed into the screw groove.

[0019] Because the receiving strip is preferably made of a harder material, the fixing of the insulation strip to the screw groove can be ensured securely via the receiving area and in particular via the receiving groove.

[0020] In order to achieve a secure fixation of the receiving strip to the holding area of ​​the base body of the insulation strip, the holding area is preferably provided with a rib structure at least in some areas.

[0021] In order to prevent web-shaped components of the insulation strip from bending or being installed incorrectly during installation of the insulation strip, preferred implementations of the solution according to the invention provide that the clamping area of ​​the base body is designed without a retaining web arranged at least partially or in regions between the clamping webs and engaging in the screw groove.

[0022] Alternatively, it is also conceivable for a retaining web to be formed between the clamping webs of the base body, which can be inserted at least partially or in part into the screw groove. The retaining web is preferably designed to be elastically deformable transversely to the insertion direction. Alternatively or additionally, it is conceivable for the retaining web to be resilient transversely to the insertion direction.

[0023] According to a further aspect of the invention, it is provided that the base body of the insulation strip has a reduced overall length compared to solutions known from the prior art in order to save material for the base body of the insulation strip and to make the base body more stable overall.

[0024] In particular, in this context, it is provided that the base body of the insulation strip has a total length which corresponds at least substantially to the length of the end faces of the filling elements, wherein the total length of the base body is preferably in a range between 0.9 times and 1.1 times the length of the end faces of the filling elements.

[0025] The base body of the insulation strip can also be made up of several parts and consist of at least two interconnected or connectable sections.

[0026] In order to achieve a particularly dimensionally stable design of the base body of the insulation strip, it is provided according to advantageous developments of the invention that the base body of the insulation strip has a transition area connecting the clamping area with the holding area, wherein the diameter of the insulation strip in the transition area tapers preferably in a frustoconical or conical manner in the direction of the holding area.

[0027] As an intumescent material for the base body of the insulation strip, a material is used in particular which responds and expands at a temperature development of at least 120 °C and preferably at a temperature development of at least 140 °C in such a way that the gap between the filling elements is automatically sealed and preferably completely filled.

[0028] Preferably, the intumescent material should be stable up to a temperature of 1,000 °C.

[0029] Exemplary embodiments of the invention are described in more detail below with reference to the accompanying drawings.

[0030] They show: FIG. 1 shows, schematically and in a sectional view, an exemplary embodiment of the insulating strip according to the invention in a state fixed to a screw groove of a transom or mullion profile; FIG. 2 shows, schematically and in a sectional view, part of a fire-protection facade with a further exemplary embodiment of the insulating strip according to the invention; FIG. 3 shows, schematically and in a sectional view, part of a fire-protection facade with a further exemplary embodiment of the insulating strip according to the invention; and FIG. 4 shows, schematically and in a sectional view, part of a fire-protection facade with a further exemplary embodiment of the insulating strip according to the invention.

[0031] The receiving strip 12 of the construction according to the invention is only in the Figure 1 shown.

[0032] A facade construction 1 in fire-resistant design according to the exemplary embodiments shown in the drawings comprises a mullion or transom profile 2, on which lateral grooves are provided into which seals 3 are inserted. These seals 3 serve as a support for the edge area of ​​insulating glass panes 4. The insulating glass panes 4 are held on the outside by a pressure profile formed by a profile strip 5 and a seal.

[0033] Between the end faces of the adjacent insulating glass panes 4, there is an insulating strip 6 serving as an insulator, which engages in or around a screw groove 7 of the metal transom or mullion 2. Additional seals can be attached to the insulating strip 6 on the outward-facing side, so that a glass rebate area between the insulating glass panes 4 is divided into two halves.

[0034] The insulation strip 6 has a monolithic base body 8 made of an intumescent material. The base body 8 of the insulation strip 6 comprises a clamping area 9 facing the screw groove 7 with opposing clamping webs, between which the screw groove 7 is clamped at least partially and / or in certain areas.

[0035] The base body 8 of the insulation strip 6 further comprises a holding area 10 facing the holding strip 5 with two opposing holding webs, between which an insertion channel 16 is formed for receiving a screw 11 screwed into the screw groove 7.

[0036] According to the invention, the insulation strip 6 has a receiving strip 12 that is connected or connectable to the holding area 10 of the base body 8 and is made of a material different from the material of the base body 8, in particular a plastic material. According to the invention, the material of the receiving strip 12 is a harder material than the material of the base body 8.

[0037] The receiving strip 12 itself has a holding area 13 that is at least partially or regionally accommodated or receivable between the holding webs 10 of the base body 8, in particular by clamping, and an opposite receiving area 17 that has a receiving groove 18 for at least partially or regionally receiving a screw 11 screwed into the screw groove 7. It is advisable for the holding area 13 to be provided, at least in regions, with a rib structure 14.

[0038] In the exemplary embodiment of the insulating strip 6 according to the invention, it is provided in particular that the receiving area 17 has two receiving webs spaced apart from one another, between which the receiving groove 18 is formed.

[0039] According to the FIG. 1 In the exemplary embodiment of the insulating strip 6 according to the invention shown, the clamping area 9 of the base body 8 is designed without a holding web arranged at least partially or regionally between the clamping webs and engaging in the screw groove 7.

[0040] Alternatively, as in FIG. 2 to FIG. 4 As shown, it is conceivable that a retaining web 19, which can be inserted at least partially or in regions into the screw groove 7, is formed on the base body 8 between the clamping webs of the base body 8. The retaining web 19 is designed to be elastically deformable, in particular transversely to the insertion direction.

[0041] Alternatively, the retaining web 19 can also be designed to be resilient transverse to the insertion direction.

[0042] The insulating strip 6 according to the invention is characterized in particular by the fact that the base body 8 of the insulating strip 6 has a total length that at least substantially corresponds to the length of the end faces of the insulating glass panes 4. Preferably, the total length of the base body 8 is in a range between 0.9 and 1.1 times the length of the end faces of the insulating glass panes 4.

[0043] As is particularly evident in the presentation in FIG. 1 can be removed, the base body 8 of the insulation strip 6 has a transition region 15 connecting the clamping region 9 with the holding region 10, wherein the diameter of the insulation strip 6 in the transition region 15 tapers in the direction of the holding region 10, preferably in a truncated cone shape or conically.

[0044] The intumescent material of the base body 8 of the insulation strip 6 is, in particular, a material that responds and expands at a temperature development of at least 120 °C and preferably at a temperature development of at least 140 °C in such a way that the gap between the filling elements 4 is automatically sealed and preferably completely filled. This is the corresponding response temperature of the intumescent material.

[0045] The intumescent material should be stable up to a temperature of about 1,000 °C.

[0046] The invention is not limited to the embodiments shown in the drawings, but results from a synopsis of all features disclosed herein. List of reference symbols

[0047] 1Facade construction 2Transom or mullion profile 3Glass seal 4Filling element / insulating glass pane 5Retaining strip 6Insulating strip 7Screw groove 8Base body of the insulating strip 9Clamping area / clamping bars 10Retaining area / retaining bars 11Screw 12Receiving strip 13Retaining area of ​​the receiving strip 14Ribbed structure 15Transition area 16Inlet channel 17Receiving area 18Receiving groove 19Retaining bar

Claims

1. Facade or skylight (1) with a mullion or transom profile (2) on which two spaced glass contact seals (3) are provided, against each of which a filling element (4), in particular in the form of a panel or a glass pane, abuts, wherein the two filling elements (4) are held on the glass contact seals (3) by means of a retaining strip (5), and an insulating strip (6) is arranged between the end faces of the filling elements (4), which insulating strip is fixed to a screw groove (7) of the mullion or transom profile (2), wherein the insulating strip (6) comprises a base body (8) in particular in a monolithic design made of an intumescent material, wherein the base body (8) of the insulating strip (6) comprises a clamping portion (9) facing the screw groove (7) with clamping webs opposite each other, between which the screw groove (7) is clamped or can be clamped at least partially and / or in areas, and wherein the base body (8) of the insulating strip (6) has a retaining portion (10) facing the retaining strip (5) with two retaining webs opposite each other, between which an insertion channel (16) is formed for receiving a screw (11) screwed or to be screwed into the screw groove (7), characterized in that the insulating strip (6) comprises a receiving strip (12) connected or connectable to the retaining portion (10) of the base body (8), which is formed from a material different from the material of the base body (8), in particular plastic material, wherein the material of the receiving strip (12) - compared to the material of the base body (8) - is a harder material.

2. Facade or skylight (1) according to claim 1, wherein the receiving strip (12) comprises a retaining portion (13) which is at least partially or in areas received between the retaining webs of the base body (8), in particular in a clamping manner, and an opposite receiving portion (17) comprising a receiving groove (18) for receiving at least partially or in areas a screw (11) screwed or to be screwed into the screw groove (7).

3. Facade or skylight (1) according to claim 2, wherein the retaining portion (13) of the receiving strip (12) is at least in areas provided with a rib structure (14).

4. Facade or skylight (1) according to claim 2 or 3, wherein the receiving portion (17) of the receiving strip (12) comprises two spaced-apart receiving webs between which the receiving groove (18) is formed.

5. Facade or skylight (1) according to one of claims 1 to 4, wherein the clamping portion (9) of the base body (8) is configured without a retaining web arranged at least partially or in areas between the clamping webs and engaging in the screw groove (7).

6. Facade or skylight (1) according to one of claims 1 to 4, wherein a retaining web (19) is formed on the base body (8) between the clamping webs of the base body (8) which can be inserted at least partially or in areas into the screw groove (7).

7. Facade or skylight (1) according to claim 6, wherein the retaining web (19) is designed to be elastically deformable transversely to the direction of insertion, and / or wherein the retaining web (19) is designed to be resilient transversely to the direction of insertion.

8. Facade or skylight (1) according to one of claims 1 to 7, wherein the base body (8) of the insulating strip (6) has a total length which corresponds at least substantially to the length of the end faces of the filling elements (4), and wherein the total length of the base body (8) is preferably in a range between 0.9 times and 1.1 times the length of the end faces of the filling elements (4).

9. Facade or skylight (1) according to one of claims 1 to 8, wherein the base body (8) of the insulating strip (6) is interrupted and consists of at least two partial portions.

10. Facade or skylight (1) according to one of claims 1 to 9, wherein the base body (8) of the insulating strip (6) has a transition portion (15) connecting the clamping portion (9) to the retaining portion (10), wherein the diameter of the insulating strip (6) in the transition portion (15) tapers in the direction of the retaining portion (10), preferably in a truncated cone shape or conically.

11. Facade or skylight (1) according to one of claims 1 to 10, wherein the intumescent material responds and expands at a temperature of at least 120°C and preferably at a temperature of at least 140°C in such a way that the gap between the filling elements (4) is automatically sealed and preferably completely filled.

12. Facade or skylight (1) according to any of claims 1 to 11, wherein the intumescent material has a stability up to a temperature of 1,000 °C.

Citation Information

Patent Citations

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    EP0702114A1

  • Facade with insulation block

    EP1452657A2

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    DE102014103950A1

  • Frame structure by the post / crossmember construction method, in particular for facades, roofs or the like

    DE3742723C1

  • Construction with structural profiles

    EP1643049A2