Building closure

The building enclosure addresses tripping hazards and high costs by eliminating sash overlap and incorporating seals and drainage profiles, providing a cost-effective, barrier-free solution with efficient sealing and water management.

EP4534789B1Active Publication Date: 2026-05-20GRETSCH UNITAS GMBH BAUBESCHLAGFABRIK
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
GRETSCH UNITAS GMBH BAUBESCHLAGFABRIK
Filing Date
2023-10-06
Publication Date
2026-05-20

AI Technical Summary

Technical Problem

Existing door or window arrangements with thresholds pose tripping hazards and are not barrier-free, while zero-threshold designs are complex and expensive.

Method used

A building enclosure with a door or window arrangement featuring a frame and sash that eliminates the sash overlap on the underside, utilizing seals and cover profiles aligned along the direction of gravity with minimal height difference, and incorporating drainage profiles for water management, without requiring complex components.

Benefits of technology

The design achieves a reduced barrier effect, is cost-effective, and ensures effective sealing and water drainage, making it suitable for barrier-free access without the need for complex components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a building enclosure (10) with a door or window arrangement (12) comprising a frame (20) and a sash (22) mounted on the frame (20) and pivotable relative to the frame (20), preferably towards an outer side (16), between an open position and a closed position, wherein the frame (20) has a lower frame cross member (24) extending along a longitudinal direction (L) and the sash (22) has a lower sash cross member (26) with a sash underside (28) facing the lower frame cross member (24) in the closed position, wherein the lower frame cross member (24) has a base profile (30) and a cover profile (32) arranged on the base profile (30), wherein an inner covering (34) adjoins the lower frame cross member (24) on an inner side (14), and wherein the sash (22) is designed without overlap on the sash underside (28).wherein a seal (36) extending along or parallel to the longitudinal direction (L) is arranged on the underside (28) of the wing, which in the closed position of the wing (22) is in sealing contact with a surface (32') of the cover profile (32), and wherein the cover profile (32) is aligned relative to the inner lining (34) such that the surface (32') of the cover profile (32) is arranged along the direction of gravity (g) by a height difference sh of 2 mm < sh < 18 mm above a surface (34') of the inner lining (34).
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Description

[0001] The invention relates to a building enclosure with a door or window arrangement according to the preamble of claim 1.

[0002] Building closures with such door or window arrangements are known from the prior art. For decades, threshold-based door or window arrangements have been installed in which a sash has a continuous overlap and a frame has a profile with several steps to secure and seal the sash relative to the frame when closed. Such door or window arrangements are inexpensive, stable, and have proven their worth in practice. However, such door or window arrangements are not barrier-free and pose a tripping hazard even for people without physical disabilities.

[0003] Furthermore, barrier-free designs for door or window arrangements are known, e.g., from EP 2 957 702 B1, which shows a design with a so-called zero threshold. This avoids tripping hazards and achieves a high level of comfort. However, such a design is technically comparatively complex and expensive.

[0004] EP 3 130 739 A1 discloses a threshold of a building closure, comprising a base body, an inner cover profile, bearing adapters, an outer cover profile, a threshold weather bar between the cover profiles, and a threshold grate arranged thereon. An inner stop seal and hose seals are arranged on the underside of the sash. DE 20 2016 100115 U1 discloses a threshold of a building closure.

[0005] The invention is based on the objective of providing a building enclosure with reduced barrier effect and lower costs compared to solutions with thresholds compared to a zero threshold.

[0006] The invention solves this problem by means of a building enclosure with the features of claim 1.

[0007] The building enclosure has a door or window arrangement which in turn has a frame and a sash mounted on the frame and pivotable relative to the frame, preferably towards an outside, between an open position and a closed position.

[0008] The frame has a lower frame cross member extending along a longitudinal direction, and the wing has a lower wing cross member with a wing underside facing the frame cross member when the wing is closed.

[0009] The lower frame cross member has a base profile and a (first) cover profile arranged on the base profile. An inner covering adjoins the lower frame cross member on one inside side.

[0010] The wing is designed without overlap on the underside, wherein at least one seal extending along or parallel to the longitudinal direction is arranged on the underside of the wing, which is in sealing contact with a surface of the cover profile when the wing is closed.

[0011] The cover profile is aligned relative to the inner covering such that the surface of the cover profile is arranged along the direction of gravity (g) by a height difference sh of 2 mm < sh < 18 mm (millimeters) above a surface of the inner covering, preferably by a height difference sh of 5 mm < sh < 15 mm, further preferably by a height difference sh of 8 mm < sh < 12 mm.

[0012] The proposed design allows for a building enclosure with reduced barrier effect using simple construction methods. By eliminating the sash overlap on the underside, the interior covering and the (first) cover profile can be positioned along the direction of gravity with a comparatively small height difference, which, according to DIN 18040, may even be considered barrier-free. The proposed design eliminates the need for drop seals (door or window assembly without drop seals). Furthermore, no complex components are required to create the building enclosure or the door or window assembly.

[0013] In other words, the height difference sh between the top edge of the inner covering and the top edge of the cover profile lies within the range specified above, with the top edge of the cover profile positioned above the top edge of the inner covering along the direction of gravity (top edge of cover profile positioned above top edge of inner covering). Regardless of this, the surface of the (first) cover profile can be designed as a tread or tread profile section.

[0014] The seal(s) are preferably arranged in a fixed position relative to the lower wing crossmember. In particular, the seal(s) are fixed (directly or indirectly) to the lower wing crossmember in a manner immovable along the direction of gravity. The seal(s) are, for example, designed as lip seals, especially as double-lipped or multi-lipped lip seals.

[0015] In a preferred embodiment, the at least one seal can be held in a seal receptacle and attached to the underside of the sash by means of the seal receptacle to a section of the lower sash cross member that projects inwards relative to the lower frame cross member when the sash is closed. In other words, the seal(s) or the seal receptacle with seal(s) are arranged on the underside of the sash where the lower sash overlap is located when the sashes overlap. This ensures sufficient sealing when the sash is closed. The seal receptacle extends along or parallel to the longitudinal direction. The seal receptacle can have one or two grooves. One seal can be held or attached in each groove.

[0016] Advantageously, the seal(s) can each have at least one free end, preferably two or more free ends, and be designed such that the free end(s) of the seal are spaced away from the inner lining along the direction of gravity when the sash is swung open from the closed position. In other words, the seal(s) are dimensioned so that they do not touch the surface of the inner lining when the sash is swung open from the closed position. This prevents damage to the seal(s) and to the inner lining, thus contributing to a long-term sealing effect.

[0017] The base profile can be advantageously arranged and / or designed such that it is located predominantly or entirely below the surface level of the inner lining (adjacent to the lower frame cross member) along the direction of gravity. This contributes to a stable design of the lower frame cross member and a comparatively small height difference between the lower frame cross member and the inner lining.

[0018] According to the invention, a drainage profile is mounted on the base profile, wherein the drainage profile is arranged on the side of the (first) cover profile facing away from the interior covering, and wherein a further cover profile is arranged on the drainage profile. This facilitates the drainage of (rain)water on the side of the door or window assembly facing away from the interior covering, i.e., towards the outside. The drainage profile serves for the drainage of (rain)water. The further cover profile at least partially covers the drainage profile.

[0019] Specifically, on the side of the lower frame cross member facing away from the inner covering, an outer covering borders the further cover profile, preferably wherein the surface of the inner covering and the surface of the outer covering have a height difference of between 0 and 2 mm along the direction of gravity. Preferably, the surface of the inner covering and the surface of the outer covering can be at the same height (height difference 0 mm) or, in other words, lie in the same plane. This contributes to a reduced barrier effect.

[0020] According to the invention, the further cover profile has a (walkable) tread section and a height-compensating section sloping towards the outer surface. This also contributes to a reduced barrier effect. The tread section, or tread profile section, forms a walking surface for passers-by. The height-compensating section allows for height compensation between the tread section and the outer surface. The height-compensating section can have a first subsection adjacent to the tread section and a second subsection adjacent to the first subsection (towards the outer surface). The first subsection can form a first angle with the horizontal, and the second subsection can form a second angle with the horizontal, the second angle being larger than the first. The end of the second subsection can rest on the outer surface.The surface of the tread section of the subsequent cover profile and the surface of the (first) cover profile can be at the same height. This allows them to form a single tread plane.

[0021] In a preferred embodiment, the drainage profile and the additional deck profile can define a water drainage channel between them, extending from an inlet (water drainage channel inlet) to an outlet (water drainage channel outlet). This facilitates gravity-driven water drainage to the outside. The water drainage channel is located between the drainage profile and the additional deck profile and is therefore (viewed from the outside) in the "wind shadow," which allows gravity-driven water drainage even during precipitation accompanied by wind or storms.

[0022] Specifically, the inlet of the water drainage channel can be formed by spacing the end of the second cover profile facing the first cover profile away from the first cover profile and / or from a section of the drainage profile adjacent to the first cover profile. This provides an inlet for the drainage channel using simple design means. In other words, there is a gap between the end of the second cover profile facing the first cover profile and the first cover profile and / or the section of the drainage profile adjacent to the first cover profile. The gap can be only a few centimeters wide, for example, 1-4 cm.

[0023] The outlet of the water drainage channel can be expediently formed by a downward-facing drain section of the secondary deck profile, open in the direction of gravity g, which is arranged between the end of the drainage profile furthest from the (first) deck profile and the outer surface. This ensures sufficient water drainage between the lower frame crossbeam and the outer surface along the downward direction of gravity.

[0024] Advantageously, a further sealing receptacle extending along or parallel to the longitudinal direction, with at least one seal, can be arranged on the underside of the wing. This receptacle extends at the entrance with one or more free ends towards the first cover profile or the drainage profile. This prevents water from penetrating beyond the entrance. The seal(s) are particularly located above the entrance or on the side of the entrance facing the (first) cover profile.

[0025] Specifically, a weather bar can be attached to the underside of the sash, at least partially covering the outer surface of the additional cover profile, specifically the tread section. This facilitates rainwater drainage, as rainwater hitting the weather bar never reaches the area between the underside of the sash and the lower frame cross member, but instead runs off the weather bar to the outside. The weather bar is preferably attached to the underside of the sash. The aforementioned additional sealing receptacle can be attached to the weather bar or integrated with it as a single material. Optionally, the weather bar can have an additional sealing receptacle extending along or parallel to the longitudinal direction, with at least one seal, extending with one or more free ends to the outer surface profile, particularly at the transition from the tread section to the height-compensating section.

[0026] The invention is explained in more detail below with reference to the figures, where identical or functionally identical elements are provided with identical reference numerals, possibly only once. The figures show: Fig. 1 shows an embodiment of a building enclosure with a door or window arrangement in a partial perspective view; Fig. 2 shows the building enclosure made of Fig.1 in a sectional view; and Fig. 3 another cover profile of the building termination made of Fig.1 in a unique position.

[0027] Figur 1 shows a building termination, which is generally designated with the reference symbol 10.

[0028] The building enclosure 10 has a door or window arrangement 12 that separates an inner side 14 (interior of the building) from an outer side 16 (exterior of the building). The door or window arrangement 12 has a frame 20 and a sash 22 mounted on the frame 20 and pivotable relative to the frame 20, in this example towards an outer side 16, between an open position and a closed position (see figure). Fig.2 ).

[0029] The frame 20 has a lower frame cross member 24 extending along a longitudinal direction L, and the sash 22 has a lower sash cross member 26 with a sash underside 28 facing the lower frame cross member when the sash 22 is closed (see figure). Fig.2 ).

[0030] The lower frame cross member 24 has a base profile 30 and a (first) cover profile 32 arranged on the base profile 30. An inner lining 34 adjoins the lower frame cross member 24 on its inner side 14.

[0031] The wing 22 is designed without overlap on the underside 28, wherein at least one seal 36 extending along or parallel to the longitudinal direction L is arranged on the underside 28, which, in the closed position of the wing 22, is in sealing contact with a surface 32' of the cover profile 32. In the example, the seal 36 is fixed immovably to the lower wing cross member 26 along the direction of gravity g and is designed as a double-lipped seal.

[0032] In this example, the cover profile 32 is aligned relative to the inner covering 34 such that the surface 32' of the cover profile 32 is positioned along the direction of gravity g by a height difference sh of 5 mm < sh < 15 mm above a surface 34' of the inner covering 34. In this example, the surface 34' of the cover profile 32 is designed as a tread surface.

[0033] The seal 36 is held in a seal receptacle 38 and is attached by means of the seal receptacle 38 to a section 26' of the lower sash cross member 26 on the underside 28 of the sash. In the closed position of the sash 22, this section projects towards the inside 14 relative to the lower frame cross member 24. The seal receptacle 38 extends along or parallel to the longitudinal direction L. In this example, the seal receptacle 38 has two seal receptacle grooves 38'.

[0034] In the example, the seal 36 has two free ends 36' and is designed such that the free ends 36' of the seal 36 are spaced apart from the inner lining 34 in a position of the wing 22 which is pivoted open from the closed position along the direction of gravity g.

[0035] In the example, the base profile 30 is arranged and / or designed such that it is located predominantly below the height of the surface 34' of the inner lining 34 along the direction of gravity g.

[0036] A drainage profile 40 is placed on the base profile 30, wherein the drainage profile 40 is arranged on the side of the cover profile 32 facing away from the inner covering 34, and wherein a further cover profile 42 is arranged on the drainage profile 40.

[0037] On the side of the lower frame cross member 24 facing away from the inner covering 34, an outer covering 44 borders the further cover profile 42, wherein the surface 34' of the inner covering 34 and the surface 44' of the outer covering 44 lie at the same height along the direction of gravity g in the example (height difference 0 mm) or in other words lie in the same plane.

[0038] The further deck profile 42 has a (walkable) tread section 45 and a height-compensating section 46 sloping towards the outer covering 44. In the example, the height-compensating section 46 has a first subsection 46', which adjoins the tread section 45, and a second subsection 46'', which adjoins the first subsection 46' (towards the outer covering 44). The first subsection 46' forms a first angle α with the horizontal, and the second subsection 46'' can form a second angle β with the horizontal, where the second angle β is greater than the first angle α (cf. Fig.3 ).

[0039] The second subsection 46'' rests on the outer surface 44 at its end in the example. The surface 45' of the tread section 45 (cf. Fig.3 ) of the further cover profile 42 and the surface 32' of the (first) cover profile 32 are at the same height in the example (cf. Fig.2 This allows them to form a stepping surface.

[0040] The drainage profile 40 and the further cover profile 42 define between them a water drainage channel 50, which extends from an inlet 52 to an outlet 54.

[0041] In this example, the inlet 52 of the water drainage channel 50 is formed by spacing the end 43 of the further cover profile 42 facing the cover profile 32 away from the cover profile 32 and / or from a section 41 of the drainage profile 40 adjacent to the cover profile 32. In other words, there is a gap 56 between the end 43 of the further cover profile 42 facing the cover profile 32 and the cover profile 32 and / or the section 41 of the drainage profile 40 adjacent to the cover profile 32.

[0042] The outlet 54 of the water drainage channel 50 is formed by a downwardly open drainage section 58 of the further cover profile 42 in the direction of gravity g, which is arranged between the end of the drainage profile 40 facing away from the (first) cover profile and the outer covering 44.

[0043] On the underside of the wing 28, a further sealing receptacle 60 extending along or parallel to the longitudinal direction L is arranged, with, in this example, two seals 62. These seals extend at the inlet 52 with their free ends towards the first cover profile 32 or the drainage profile 40. The seals 62 are arranged, in particular, above the inlet 52 or on the side of the inlet 52 facing the (first) cover profile 32.

[0044] A weather bar 64 is attached to the underside 28 of the sash, which at least partially covers the further cover profile 42 towards the outside 16, or at least the tread section 45 of the further cover profile 42. In this example, the weather bar 64 is attached to the underside 28 of the sash. The further sealing receptacle 60 is connected to the weather bar 64 with a single material.

[0045] In the example, the weather bar 64 has an additional sealing receptacle 66 extending along or parallel to the longitudinal direction L with a seal 68, which extends with its free ends to the further cover profile 42, in the example at the transition from the tread section 45 and height compensation section 46.

[0046] The proposed design deliberately omits drop-down seals (door or window arrangement without drop-down seals). Regardless, all seals are designed as double-lipped lip seals.

Claims

1. Building closure (10) having a door or window arrangement (12) comprising a frame (20) and a wing (22) that is mounted on the frame (20) and is pivotable relative to the frame (20), preferably toward an outer side (16), between an open position and a closed position, the frame (20) having a lower transverse frame member (24) extending in a longitudinal direction (L) and the wing (22) having a lower transverse wing member (26) which has a wing underside (28) that faces the lower transverse frame member (24) in the closed position, the lower transverse frame member (24) having a base profile (30) and a cover profile (32) that is arranged on the base profile (30), an interior flooring (34) adjoining the lower transverse frame member (24) on an inner side (14), the wing (22) being designed without overlap on the wing underside (28), a seal (36) that extends in or parallel to the longitudinal direction (L) being arranged on the wing underside (28), which seal is in sealing contact with a surface (32') of the cover profile (32) in the closed position of the wing (22), a drainage profile (40) being placed on the base profile (30), the drainage profile (40) being arranged on the side of the cover profile (32) that faces away from the interior flooring (34), and a further cover profile (42) being arranged on the drainage profile (40), an exterior flooring (44) adjoining the further cover profile (42) on the side of the lower transverse frame member (24) that faces away from the interior flooring (34), characterized in that the cover profile (32) is aligned relative to the interior flooring (34) such that the surface (32') of the cover profile (32) is arranged above a surface (34') of the interior flooring (34) with a height difference sh of 2 mm < sh < 18 mm in the direction of gravity (g), and in that the further cover profile (42) has a tread portion (45) and a height compensation portion (46) sloping toward the exterior flooring (44).

2. Building closure (10) according to claim 1, characterized in that the seal (36) is held in a seal receptacle (38) and is attached, by means of the seal receptacle (38) on the wing underside (28), to a portion (26') of the lower transverse wing member (26), which protrudes toward the inner side (14) relative to the lower transverse frame member (24) in the closed position of the wing (22).

3. Building closure (10) according to claim 1 or claim 2, characterized in that the seal (36) has at least one free end (36') and is designed such that, in a position of the wing (22) that is pivoted open from the closed position in the direction of gravity (g), the free end(s) (36') of the seal (36) is / are spaced apart from the interior flooring (34).

4. Building closure (10) according to any of the preceding claims, characterized in that the base profile (30) is arranged and / or designed such that it is arranged predominantly or completely below the height of the surface (34') of the interior flooring (34) in the direction of gravity (g).

5. Building closure (10) according to any of the preceding claims, characterized in that the surface (34') of the interior flooring (34) and the surface (44') of the exterior flooring (44) have a height difference of between 0 and 2 mm in the direction of gravity (g).

6. Building closure (10) according to any of the preceding claims, characterized in that the drainage profile (40) and the further cover profile (42) define a water drainage channel (50) therebetween, which extends from an inlet (52) to an outlet (54).

7. Building closure (10) according to claim 6, characterized in that the inlet (52) of the water drainage channel (50) is formed by the end (43) of the further cover profile (42) that faces the cover profile (32) being spaced apart from the cover profile (32) and / or from a portion (41) of the drainage profile (40) that is adjacent to the cover profile (32).

8. Building closure (10) according to claim 6 or claim 7, characterized in that the outlet (54) of the water drainage channel (50) is formed by a discharge portion (58) of the further cover profile (42), which discharge portion is open at the bottom with respect to the direction of gravity (g) and is arranged between the end (43) of the drainage profile (40) that faces away from the cover profile (32) and the exterior flooring (44).

9. Building closure (10) according to any of claims 6 to 8, characterized in that a further sealing receptacle (60) extending in or parallel to the longitudinal direction (L) is arranged on the wing underside (28) together with at least one seal (62), which extends, in particular at the inlet (52), to the first cover profile (32) or to the drainage profile (40).

10. Building closure (10) according to any of the preceding claims, characterized in that a sill (64) is attached to the wing underside (28) and at least partially covers the further cover profile (42) toward the outside (16), at least the tread portion (45) of the further cover profile (42).