IMPROVED SEALING STRIP AND DOOR OR WINDOW WITH IMPROVED SEALING STRIP

Description

[0001] The invention relates to a sealing strip for sealing a door or window against a stop strip of a threshold profile, a frame or a sash profile of the door or window, in particular for sealing the door in a threshold area, comprising a base strip, a foot arranged on the base strip for attaching the sealing strip to the door or window and a base body formed on the side of the base strip facing away from the foot, which functions as a sealing lip, wherein the base body has a first contact zone extending transversely to the base strip for establishing a first contact with the stop strip.Furthermore, the invention relates to a door or window, in particular with aluminium profiles, comprising a frame composed of individual frame profiles, optionally a threshold profile and a door or window sash pivotally attached to the frame with a circumferential sash frame profile, wherein a stop strip is formed on the frame and / or the threshold profile and a sealing strip is attached to the door or window sash, or wherein a stop strip is formed on the door or window sash and a sealing strip is attached to the frame and / or the threshold profile, wherein the sealing strip is in contact with the stop strip when the door or window is closed.

[0002] Aluminum doors and windows, especially front doors, have long been used in a wide variety of applications. Doors essentially consist of a frame, usually made from a three-sided aluminum frame profile connected by corner connectors, a threshold profile attached with screws and plastic brackets between the upright frame profiles, and a door leaf. Windows typically have a frame made from a four-sided aluminum frame profile and a sash. The corresponding door or window sashes usually consist of a three-sided sash frame profile and a base profile connected by corner connectors and, if necessary, T-connectors, or a four-sided sash frame profile connected by corner connectors. The door or window sash typically serves to hold glass panes or other infill elements.The following refers only to doors, although the statements are equally valid for windows.

[0003] The sealing of conventional doors is achieved via sealing strips located in both the frame / sill profile and the sash profile. These sealing strips are arranged on different levels (outer, middle, inner), also known as sealing planes. Since water tends to collect in the lower part of doors, the sill area is generally the most vulnerable point, where water can penetrate behind the sealing planes particularly quickly.

[0004] To ensure the best possible seal in the particularly stressed threshold area, two main sealing principles have become established. Firstly, drop-down seals are regularly used in the threshold area. These seals lower towards the threshold when the door is closed, thus providing a particularly effective seal. A corresponding seal is known, for example, from EP 1489 257 A1, DE 10 212 231 A1, or EP 0758044. Secondly, sealing strips that conform to the threshold profile have become established. Such sealing strips are described, for example, in DE 10 2012 111 005 A1, EP 0 611 872 A2, or DE 20 2013 102 945 U1. The present invention relates to the latter sealing principle.

[0005] To seal the door with a sealing strip that rests against the threshold profile, a stop strip is provided on the threshold profile. When the door is closed, the sealing strip makes contact with this stop strip. In this case, the sealing strip is attached to the sash frame profile associated with the threshold area. Alternatively, it is also possible, in principle, to attach the sealing strip to the threshold profile and form the stop strip on the sash frame profile associated with the threshold area, although the latter is less common in practice. A corresponding sealing strip that makes contact with a stop strip is not only advantageous for the threshold area. It can also be used in the door frame.

[0006] The sealing strip comprises a base strip with a foot on one side, which allows the sealing strip to be attached to the door. The foot can be designed as a plug-in foot, suitable for insertion into an undercut groove formed in the door. Alternatively, the foot can be designed as an undercut groove that can be fitted onto a corresponding projection formed on the door.

[0007] On the opposite side of the base strip, the sealing strips in question have a main body that functions as a sealing lip. This main body has a first contact zone where, when the door is closed, it makes contact with the stop strip. In this area, a seal is created that prevents water from the outside environment from penetrating behind the sealing surface. In these sealing strips, the first contact zone runs perpendicular to the base strip. Therefore, when the sealing strip contacts the stop strip, it is not compressed towards the base strip or the door foot. Rather, when the door is closed, a force acts approximately parallel to the base strip. In this context, the term "perpendicular" includes not only contact zones running at right angles to the base strip, but also contact zones running at an angle to the base strip.

[0008] To achieve improved sealing performance in windows and doors, it is known from the prior art to use a sealing strip that has not just one, but rather two contact zones, each of which bears against two different points on the door or window during use. With such sealing strips, water from the external environment must overcome two contact zones to penetrate behind the sealing plane formed by the sealing strip. Accordingly, a sealing strip with two contact zones exhibits improved sealing performance.

[0009] EP 3 216 967 A1 proposes a sealing strip for sealing a gap between two elements of a window, door, or facade that are movable relative to each other, and which features two contact zones. The sealing strip has a base and a base wall with a sealing element formed on the side of the base wall opposite the base. A free web is formed on the side of the base wall adjacent to the sealing element, and this web is connected to the sealing element via a tension web. When the sealing element is compressed, the web pivots towards the sealing element. When the sealing strip is placed against a support, both the sealing element and the web come into contact with the support. The movement of the web, initiated by the tension web, presses it more firmly against the support, resulting in a particularly strong seal.

[0010] From DE 10 2019 123 451 A1, a sealing strip for sealing a door or window is known, comprising a base section for attachment to a support bearing and a sealing section that can be brought into sealed contact with an abutment. The sealing section has an expandable section with a sealing lip and a second, non-expandable section with a sealing lip, wherein at least one of the sealing lips is designed for constant contact with the abutment. A separate tube is formed in the expandable section, which can be pressurized with a fluid. By pressurizing the tube with the fluid, the expandable section expands so that the sealing lip of the expandable section can be brought into contact with the abutment. Expansion of the expandable section creates a second contact surface with the abutment, which in turn increases the sealing effect.

[0011] From DE 10 195 10 597 A1, a sealing strip with a profile base and an anchoring wedge is known. On the side of the profile base opposite the anchoring wedge, a sealing bead and a sealing lip are formed side by side, the sealing bead having a nose at its end. By placing a body to be sealed, such as a glass pane, onto the sealing strip, the sealing lip is deformed. This deformation causes the nose of the sealing bead to be pulled upwards and also pressed against the body to be sealed, thus creating a second contact between the sealing strip and the body to be sealed.

[0012] The known sealing strips with improved sealing performance are used as stop seals for placement in an overlap area between a web of the sash frame profile and a web of the frame profile, or as contact seals between a panel element and a sash frame or between a panel element and a frame. The sealing strips described above are not suitable for sealing gaps where there is no overlap area between two webs or between a web and a panel element. This is typically the case with threshold profiles. Therefore, the sealing strips with enhanced sealing performance known from the prior art are not suitable for use in the threshold area with a stop strip typically present in the threshold area that does not overlap with a web of the frame.However, especially in the threshold area, driving rain or other challenging weather conditions such as hail or snow can cause the sealing effect of the sealing strip to be insufficient, resulting in water getting behind the sealing surface.

[0013] Building on this, the object of the present invention is to provide a sealing strip with improved sealing performance, which is particularly suitable for use in the threshold area. Furthermore, it aims to provide a door or window with particularly good sealing.

[0014] This problem is solved in the sealing strip mentioned at the beginning and described above by the fact that the sealing strip has a rib projecting from the base body, acting as a sealing lip, with a free end, wherein the rib has a second contact zone to establish a second contact with the stop strip, wherein the free end of the rib is pivotable in the direction of the first contact zone of the base body by applying pressure to the base body in the first contact zone, and wherein the base body forms the end of the sealing strip on the side of the base strip facing away from the foot in a direction transverse to the base strip.

[0015] With regard to the door or window, the problem is solved in the aforementioned door or window described above by the fact that the sealing strip is designed according to one of claims 1 to 8.

[0016] The sealing strip according to the invention is suitable for the threshold area of ​​a door, but also for the frame of a window or a door, provided a corresponding stop strip is present. With a sealing strip according to the invention, no overlap of two webs is necessary. The sealing strip is designed such that, when the door is closed, the sealing strip first makes contact with the stop strip via its base body and the first contact zone. Pressing the base body against the stop strip initiates movement of the web. The web moves with its free end towards the first contact zone until the web makes contact with the stop strip in the second contact zone. Accordingly, the web is advantageously arranged on the side of the base body where the first contact zone is formed. The stop strip can thus be clamped, in a sense, between the web and the base body.When the door is closed, the bridge lies at an angle on the stop strip, ensuring that when the sealing strip comes into contact with water, it can flow downwards like a weather bar.

[0017] The base body forms the end of the sealing strip on the side of the base strip facing away from the foot, in a direction perpendicular to the base strip. The web should be dimensioned and positioned on the base body so that the stop strip first makes contact with the stop strip via the base body. This ensures that when the door closes, the stop strip always touches the base body first, before the web is pivoted towards the first contact zone, i.e., also towards the stop strip, by pressing the stop strip against the base body. Therefore, the stop strip must not first touch the web and then make contact with the base body during a closing action.

[0018] A seal according to the invention provides improved sealing performance in two ways. Firstly, when the door is closed, two contact zones are created between the sealing strip and the stop strip, so that water must overcome two contact surfaces to penetrate behind the sealing plane. Secondly, the rib acts like a weather bar, allowing water that occurs outside the sealing plane to flow downwards. A door or window with a sealing strip according to the invention therefore has a higher resistance to driving rain. This is particularly advantageous in the threshold area of ​​a door or in the base area of ​​a window.

[0019] A further advantage of a sealing strip or door according to the invention is that precise door adjustment is no longer necessary to achieve a good seal. With sealing strips for the threshold area known from the prior art, precise manufacturing and complex door adjustment are usually required to achieve sufficient sealing. With a sealing strip according to the invention, this is no longer necessary due to the operating principle described above. The sealing strip therefore also offers advantages for the manufacturing and installation of the sealing strip or the door.

[0020] In the invention, the web of the sealing strip, when unloaded, runs essentially parallel to the base strip in cross-section. This ensures, on the one hand, that the web does not come into contact with the stop strip during the closing process of the door before the base body is pressed against it. On the other hand, this ensures that the web does not have to be bent unnecessarily sharply to make contact with the stop strip. Excessive bending of the web would place a significant strain on the material. Preferably, the base body has a cavity. By designing the base body as a hollow body, it can deform particularly easily, thus triggering a pivoting movement of the web. In this case, the door can be closed particularly easily.

[0021] In a particularly preferred embodiment, the cavity in the area of ​​the first contact zone is formed in a circular arc shape, wherein the cavity, particularly in the area of ​​the first contact zone, is formed in a circular arc shape with a central angle greater than 180°, and in particular greater than 270°. This allows the base body to deform particularly easily in the area of ​​the first contact zone, so that no great force is required when closing the door.

[0022] In an advantageous embodiment of the invention, the sealing strip is formed in one piece. This allows for particularly easy handling and a good sealing effect of the sealing strip.

[0023] Preferably, the foot has a hollow interior. This is particularly relevant if the foot is designed as a plug-in foot. A plug-in foot constructed as a hollow body can be inserted particularly easily into an undercut groove present on the sash frame.

[0024] Advantageously, the cavity of the base and / or the cavity of the foot can be filled with a foamed material. This can offer advantages regarding the insulating effect of the sealing strip.

[0025] With regard to the door or window, the sealing strip is advantageously attached to the door or window sash, and the stop strip is formed on the frame and / or the sill profile. This prevents the sealing strip, particularly in the case of doors or floor-to-ceiling windows, from being stressed by foot traffic when passing through the door or window, and from potentially being damaged by shoes or similar items. Attaching the sealing strip to the window sash provides better protection against such stresses.

[0026] The stop strip is preferably designed as a projection on the frame and / or the threshold profile or on the door or window sash. Particularly in the threshold area of ​​the door, the stop strip thus provides a first barrier against water, even when the door is open. In this context, it is particularly advantageous if the stop strip and the sealing strip are dimensioned such that the projecting stop strip is positioned between the web and the base body when the door or window is closed. This allows the web of the sealing strip to rest against the corner of the stop strip facing the outside, thereby facilitating better drainage of any water. In such an embodiment of the invention, the web effectively acts as a weather bar.

[0027] In an advantageous embodiment of the invention, the sealing strip extends essentially completely along the threshold profile. In this case, the door benefits from an improved seal across its entire width in the threshold area.

[0028] The sealing strip runs particularly advantageously around the entire frame and optionally the threshold profile, or around the entire door or window sash. This ensures improved sealing across the entire window or door.

[0029] The invention is explained in more detail below with reference to a drawing that merely illustrates an exemplary embodiment.

[0030] The drawing shows: Fig. 1 shows a vertical section of a threshold area of ​​a door from the prior art, Fig. 2 shows a threshold area of ​​a (not yet fully closed) door according to the invention in one of the Fig. 1 corresponding view with a sealing strip according to the invention and Figs. 3A-3C the sealing strip made of Fig. 2 as a detail of area III in Fig. 2 during a closing process.

[0031] In Fig. 1 Figure 1 shows a vertical section of the threshold area of ​​a door known from the prior art. The door has a surrounding frame (not shown) made of frame profiles, a threshold profile 1, and a door leaf 2 hinged to the frame with a surrounding leaf frame profile 3. The threshold profile 1 comprises an inner shell 4 and an outer shell 5, which are connected to each other by an insulating spacer 6. Above the insulating spacer 6, a threshold grate 7 with a grooved surface is arranged to improve slip resistance. The leaf frame profile 3 has an inner shell 8 and an outer shell 9, which are also connected to each other at a distance by insulating spacers 10 and 11. A glass pane 12 is arranged between the inner shell 8 and the outer shell 9 as an infill element.

[0032] The threshold area of ​​the door is sealed on the inside by a stop seal 13. On the outside, the threshold area is sealed by a sealing strip 14, which rests against a stop strip 15 of the threshold profile 1. The sealing strip 14 has a base strip 16 and a foot 17 arranged on the base strip 16. The foot 17 is designed as an undercut groove and is attached to a projection 18 formed on the insulating web 11. On the side of the base strip 16 facing away from the foot 17, a base body 19 is formed, which acts as a sealing lip and has a first contact zone 20 for establishing initial contact with the stop strip 15. The first contact zone 20 runs transversely to the base strip 16.

[0033] In Fig. 2 is a threshold area of ​​a door according to the invention in one of the Fig. 1 The corresponding view is shown with a sealing strip 21 according to the invention. Fig. 3A-3C Is the sealing strip 21 made of Fig. 2 as a detail of area III-A in Fig. 2 The sealing strip 21 is shown during a closing process. It has a base strip 22 and a foot 23 formed on the base strip 22. The foot 23 is designed as a plug-in foot and serves as a fastening means for the sealing strip 21 to the door leaf 2. On the side of the base strip 22 facing away from the foot 23, a base body 24 is formed, which functions as a sealing lip. The base body 24 has a first contact zone 25 for establishing initial contact with the stop strip 15. Furthermore, the sealing strip 21 has a web 26 projecting from the base body 24, which also functions as a sealing lip. The web 26 is formed on the side of the base body 24 where the first contact zone 25 is also located. The web 26 has a free end 27. The base body 24 forms the end of the sealing strip 21 on the side of the base strip 22 facing away from the foot 23, in a direction transverse to the base strip 22. In the Fig. 2 and 3A-3C The threshold area shown corresponds to the lowermost area of ​​the sealing strip 21. This ensures that during a closing process, the initial contact between the stop strip 15 and the sealing strip 21 takes place via the base body 24 of the sealing strip 21.

[0034] When pressure is applied to the base body 24 at the first contact zone 25, the free end 27 of the bridge 26 pivots towards the first contact zone 25 of the base body 24. This occurs during a closing process, as described in the Fig. 3A-3C As shown in the figure. First, the stop strip 15 touches the sealing strip 21 in the first contact zone 25 of the base body 24, as shown in Fig. 3B as can be seen. Further pressure on the door leaf 2 applies pressure to the base body 24 in the first contact zone 25. This causes the base body 24 to bend inwards in the area of ​​the first contact zone 25, initiating a pivoting movement of the web 26. The free end 27 of the web 26 pivots, as shown in Fig. 3C shown, in the direction of the first contact zone 25 and thus in the direction of the stop bar 15, so that the bridge 26 comes into contact with the stop bar 15 in a second contact zone 28. In the Fig. 3C In the depicted closed position of the door, the sealing strip 21 touches the stop strip 15 in two zones, namely in the first contact zone 25 and in the second contact zone 28.

[0035] As in the Fig. 3A und 3B As can be seen, the web 26 runs essentially parallel to the base strip 22 in its unloaded state. The web 26 is located in the central area of ​​the base body 24. This has the advantage that, when the door is closed, it is ensured that the stop strip 15 first contacts the sealing strip 21 in the first contact zone 25. Furthermore, this ensures that the web 26 does not have to be excessively bent to make contact with the stop strip 15.

[0036] The base body 24 has a cavity 29 which, in the area of ​​the first contact zone 25, is arc-shaped with a central angle of over 270°. In the opposite lower corner, the cavity 29 is also arc-shaped. Due to the hollow design of the base body 24, it can deform slightly during a closing process and trigger the pivoting movement of the bridge 26 described above. The arc-shaped design of the cavity 29 further facilitates this slight deformation of the base body 24.

[0037] The stop bar 15 is in the Figuren 2 and 3A-CIn the illustrated and thus preferred embodiment, the stop strip 15 is designed as a projection. With appropriate dimensioning of the stop strip 15 and the sealing strip 21, the stop strip 15 can be positioned between the web 26 and the base body 24 when the door is closed, effectively clamped between them. This results in a particularly good seal. Furthermore, the web 26 is pressed against the corner of the stop strip 15 facing the outside and extends downwards from the base body 24. In this way, the web 26 acts like a kind of weather bar, allowing water that reaches the sealing strip 21 to drain away effectively.

[0038] The sealing strip 21 according to the invention offers improved sealing performance by being in contact with the stop strip 15 in two contact zones 25, 28 when the door is closed, and is also designed as a kind of weather bar, on which water occurring on the outside can drain away well downwards and thus no standing water occurs on the stop strip 15.

Claims

1. Sealing strip (21) for sealing a door or a window at a stop strip (15) of a threshold profile (1), a frame or a sash frame profile of the door or the window, in particular for sealing the door in a threshold region, comprising a base strip (22), a foot (23) arranged on the base strip (22) for fastening the sealing strip (21) to the door or the window and a base body (24) formed on the side of the base strip (22) facing away from the foot (23) and acting as a sealing lip, wherein the base body (24) has a first contact zone (25) extending transversely to the base strip (22) for producing a first contact with the stop strip (15), wherein the sealing strip (21) has a web (26) which projects from the base body (24) and acts as a sealing lip and has a free end (27), the web (26) having a second contact zone (28) for producing a second contact with the stop strip (15), wherein the free end (27) of the web is pivotable in the direction of the first contact zone (25) of the base body (24) by applying pressure to the base body (24) in the first contact zone (25) and wherein the base body (24) forms the end of the sealing strip (21) on the side of the base strip (22) facing away from the foot (23) in the direction transverse to the base strip (22), characterised in that the web (26) extends in cross-section essentially parallel to the base strip (22) when the sealing strip (21) is not under load.

2. Sealing strip according to claim 1, characterised in that the base body (24) has a cavity (29).

3. Sealing strip according to claim 2, characterised in that the cavity (29) in the region of the first contact zone (25) is in the shape of an arc of a circle.

4. Sealing strip according to claim 3, characterised in that the cavity (29) in the region of the first contact zone (25) is formed in the shape of an arc of a circle with a centre point angle of greater than 180°, in particular greater than 270°.

5. Sealing strip according to one of claims 1 to 4, characterised in that the sealing strip (21) is integrally formed.

6. Sealing strip according to one of claims 1 to 5, characterised in that the foot (23) has a cavity.

7. Sealing strip according to one of claims 2 to 6, characterised in that the cavity (29) of the base body (24) and / or the cavity of the foot (23) are filled with a foamed material.

8. Door or window, in particular with aluminium profiles, with a frame composed of individual frame profiles, optionally a threshold profile (1) and a door or window sash (2) hinged to the frame with a circumferential sash frame profile (3), wherein a stop strip (15) is formed on the frame and / or the threshold profile (1) and a sealing strip (21) is attached to the door or window sash (2) or wherein a stop strip is formed on the door or window sash and a sealing strip is attached to the frame and / or the threshold profile, wherein the sealing strip (21) is in contact with the stop strip (15) when the door or window is closed, characterised in that the sealing strip (21) is designed according to one of claims 1 to 7.

9. Door or window according to claim 8, characterised in that the sealing strip (21) is attached to the door or window leaf (2) and the stop strip (15) is formed on the frame and / or the threshold profile (1).

10. Door or window according to claim 8 or 9, characterised in that the stop strip (15) is formed as a projection on the frame and / or on the threshold profile (1) or on the door or window sash.

11. Door or window according to claim 10, characterised in that the stop strip (15) and the sealing strip (21) are dimensioned in such a way that, when the door or window is closed, the stop strip (15) in the form of a projection is arranged between a base body (24) acting as a sealing lip and a web (26) projecting from the base body (24) and acting as a sealing lip with a free end (27 .

12. Door or window according to one of claims 8 to 11, characterised in that the sealing strip (21) extends essentially completely along the threshold profile (1).

13. Door or window according to one of claims 8 to 12, characterised in that the sealing strip (21) extends circumferentially on the frame and optionally on the threshold profile (1) or circumferentially on the door or window sash.