IMPROVED SEALING STRIP AND DOOR OR WINDOW WITH IMPROVED SEALING STRIP
Patent Information
- Application Number
- AT2023208433T
- Authority / Receiving Office
- AT · AT
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-11-11
- Filing Date
- 2023-11-08
- Publication Date
- 2026-04-15
- Estimated Expiration
- 2043-11-08
AI Technical Summary
Existing sealing strips for doors and windows, particularly in the threshold area, fail to provide sufficient sealing during challenging weather conditions like driving rain or snow, as they are not suitable for gaps without an overlap area between two webs or a web and a surface element, leading to water infiltration.
A sealing strip with a web that protrudes from the base body, featuring a second contact zone for the stop strip, where the web pivots upon pressure applied to the base body's first contact zone, ensuring two contact points with the stop strip and acting like a weatherboard to direct water downwards.
The sealing strip achieves an improved sealing effect by creating two contact zones with the stop strip, enhancing resistance to driving rain and eliminating the need for precise adjustment or complex manufacturing, while also allowing water to flow downwards, thus preventing water infiltration.
Abstract
Description
[0001] The invention relates to a sealing strip for sealing a door or a window at 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 fastening 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 and functioning as a sealing lip, wherein the base body has a first contact zone running 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 aluminum profiles, with a frame composed of individual frame profiles, optionally a sill profile and a door or window sash which is articulated to the frame and has a circumferential sash profile, wherein a stop strip is formed on the frame and / or the sill profile and a sealing strip is fastened to the door or window sash or wherein a stop strip is formed on the door or window sash and a sealing strip is fastened to the frame and / or the sill 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 ways. Doors essentially consist of a frame, usually made up of an aluminum frame profile running around three sides and connected by corner connectors, a threshold profile that is fastened with screws using plastic holders between the upright frame profiles, and a door leaf. Windows usually have a frame made up of an aluminum frame profile running around four sides and a window leaf. Corresponding door or window leaves usually consist of a sash frame profile running around three sides and a base profile, which are connected by corner and, if necessary, T-connectors, or a sash frame profile running around four sides and connected by corner connectors. The door or window leaf is usually used to accommodate glass panes or other filling elements.In the following, reference is made only to doors, although the statements also apply to windows.
[0003] The sealing of conventional doors is achieved by sealing strips located in both the frame or threshold profile and the sash profile. The sealing strips are arranged at different levels (outside, center, inside), which are also referred to as sealing levels. Since water primarily collects in the lower area of doors, the threshold area is generally the most exposed area, where water can penetrate behind the sealing levels particularly quickly.
[0004] To ensure the best possible seal for the particularly stressed threshold area, two sealing principles have emerged. Firstly, lowerable seals are regularly used in the threshold area. These seals lower toward the threshold when the door is closed, thus providing a particularly effective seal. Such a seal is known, for example, from EP 1 489 257 A1 or DE 10 212 231 A1. Secondly, sealing strips that adhere 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, with which the sealing strip is in contact when the door is closed. 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 commonly used in practice. A corresponding sealing strip that is in 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 can be used to attach the sealing strip to the door. The foot can be designed as a plug-in foot, suitable for insertion into an undercut groove formed on the door. Alternatively, the foot can be designed as an undercut groove, which can be plugged onto a correspondingly designed projection on the door.
[0007] On the other side of the base strip, the sealing strips in question have a base body that acts as a sealing lip. The base body has a first contact zone where the base body is in contact with the stop strip when the door is closed. In this area, a sealing effect is created that prevents water from the outside environment from penetrating behind the sealing plane. In the sealing strips in question, the first contact zone runs perpendicular to the base strip. When the sealing strip comes into contact with the stop strip, the sealing strip is therefore not compressed towards the base strip or the foot. Rather, when the door is closed, a force acts roughly parallel to the base strip. In this context, the term transverse includes not only contact zones that run at right angles to the base strip, but also contact zones that run diagonally to the base strip.
[0008] To achieve improved sealing performance on windows and doors, it is known from the prior art to use a sealing strip that has not just one contact zone, but rather two contact zones, each of which is located at two different points on the door or window during use. With such sealing strips, water from the outside environment must overcome two contact zones to reach behind the sealing layer formed by the sealing strip. Accordingly, a sealing strip with two contact zones provides improved sealing performance.
[0009] EP 3 216 967 A1 proposes a sealing strip for sealing a gap to be sealed between two relatively movable elements of a window, door or facade, wherein two contact zones are provided. The sealing strip has a base region and a base wall with a sealing body formed on the side of the base wall facing away from the base. A free web is formed on the side of the sealing body on the base wall and is connected to the sealing body via a tension web. When the sealing body is compressed, the web is pivoted towards the sealing body. When the sealing strip is placed against an abutment, both the sealing body and the web come into contact with the abutment. The movement of the web initiated by the tension web presses the web more strongly against the abutment, resulting in a particularly strong sealing effect.
[0010] DE 10 2019 123 451 A1 discloses a sealing strip for sealing a door or window, which comprises 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 hose, which can be pressurized with a pressurized fluid, is formed in the expandable section. By applying the pressurized fluid to the hose, the expandable section expands so that the sealing lip of the expandable section can be brought into contact with the abutment. By expanding the expandable section, a second contact surface with the abutment is created, which in turn increases the sealing effect.
[0011] DE 10 195 10 597 A1 discloses a sealing strip with a profile base body and an anchoring wedge. On the side of the profile base body opposite the anchoring wedge, a sealing bead and a sealing lip are formed next to each other, with the sealing bead having a nose at the end. Placing a body to be sealed, such as a pane of glass, on the sealing strip deforms the sealing lip. This deformation causes the nose of the sealing bead to be raised and also pressed against the body to be sealed, 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 a stop seal for arrangement in an overlap area between a web of the sash frame profile and a web of the frame profile or as a contact seal between a surface element and a sash frame or between a surface element and a frame. The sealing strips described above are not suitable for a gap to be sealed in which there is no overlap area between two webs or a web and a surface element. This is, however, usually the case with threshold profiles. The sealing strips known from the prior art with increased sealing performance are therefore not suitable for use in the threshold area with a stop strip usually present in the threshold area that does not overlap with a web of the frame.However, particularly in the threshold area, driving rain or other challenging weather conditions such as hail or snow can result in the sealing effect of the sealing strip being insufficient and, as a result, water getting behind the sealing layer.
[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 threshold areas. Furthermore, a door or window with particularly good sealing properties is to be specified.
[0014] This object is achieved in the sealing strip mentioned at the outset and described above in that the sealing strip has a web which projects from the base body and functions as a sealing lip, with a free end, wherein the web has a second contact zone for establishing a second contact with the stop strip, wherein the free end of the web can be pivoted 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 the direction transverse to the base strip.
[0015] With regard to the door or the window, the object is achieved in the case of the door mentioned at the outset and described above or the window mentioned at the outset and described above in 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 that a corresponding stop strip is present there. With a sealing strip according to the invention, an overlap area of two webs is not necessary. The sealing strip is designed in such a way that when the door is closed, the sealing strip is the first to come into contact with the stop strip via its base body with the first contact zone. Pressing the base body against the stop strip initiates a movement of the web. The web moves with its free end towards the first contact zone until the web comes into contact with the stop strip in the second contact zone. Accordingly, the web is advantageously arranged on the side of the base body on which the first contact zone is formed. The stop strip can thus be clamped to a certain extent between the web and the base body.When the door is closed, the web sits diagonally on the stop strip and ensures that when the sealing strip comes into contact with water, the water can drain downwards like a weather strip.
[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 in such a way that the stop strip first comes into contact with the stop strip via the base body. This ensures that when the door is closed, 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. During a closing process, the stop strip must therefore not first touch the web and then come into contact with the base body.
[0018] A seal according to the invention enables improved sealing in two respects. Firstly, when the door is closed, two contact zones are created between the sealing strip and the stop strip, meaning that water must overcome two contact surfaces to penetrate behind the sealing plane. Secondly, the web acts like a weather strip, allowing water that occurs outside the sealing plane to drain downwards. A door or window with a sealing strip according to the invention therefore has greater 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 according to the invention or a door according to the invention is the fact that delicate adjustment of the door is no longer necessary to achieve a good sealing result. With prior art sealing strips for threshold areas, precise manufacturing and complex adjustment of the door are usually required to achieve a sufficient sealing effect. 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 production and assembly of the sealing strip or the door.
[0020] In a particularly preferred embodiment of the invention, the cross-section of the web runs essentially parallel to the base strip when the sealing strip is unloaded. This ensures, on the one hand, that the web does not come into contact with the stop strip when the door is closed before the base body is pressed against it. On the other hand, it ensures that the web does not have to be bent unnecessarily sharply to come into contact with the stop strip. Excessive bending of the web would place considerable stress on the material.
[0021] Particularly preferably, the base body has a hollow space. Designing the base body as a hollow body allows it to deform particularly easily, thus triggering a pivoting movement of the web. In this case, the door can be closed particularly easily.
[0022] Particularly preferably, the cavity in the region of the first contact zone is formed in a circular arc shape, with the cavity, particularly in the region of the first contact zone, being formed in a circular arc shape with a center angle of greater than 180°, in particular greater than 270°. This allows the base body to deform particularly easily in the region of the first contact zone, so that no great force is required when closing the door.
[0023] 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.
[0024] The base preferably has a hollow space. This is especially relevant if the base is designed as a plug-in base. With a plug-in base constructed as a hollow body, it can be inserted particularly easily into an undercut groove in the sash frame.
[0025] Advantageously, the cavity of the base body and / or the cavity of the base can be filled with a foamed material. This can provide advantages regarding the insulating effect of the sealing strip.
[0026] 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 from being subjected to stress by someone walking on it when passing through the door or floor-to-ceiling window, and potentially damaged by shoes or similar objects. Attaching the sealing strip to the window sash provides better protection against such stresses.
[0027] The stop strip is particularly preferably designed as a projection on the frame and / or on the sill profile or on the door or window sash. Particularly in the threshold area of the door, the stop strip thus provides an initial barrier for 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 stop strip designed as a projection is arranged between the web and the base body when the door or window is closed. This allows the web of the sealing strip to rest on the corner of the stop strip facing the outside, allowing any water to drain away more easily. With such an embodiment of the invention, the web functions particularly like a weather strip.
[0028] In an advantageous embodiment of the invention, the sealing strip extends essentially completely along the threshold profile. In this case, the door benefits from improved sealing across its entire width in the threshold area.
[0029] Particularly advantageously, the sealing strip runs all the way around the frame and optionally the sill profile, or all the way around the door or window sash. This provides improved sealing across the entire window or all the way around the door.
[0030] The invention is explained in more detail below with reference to a drawing which merely represents an exemplary embodiment.
[0031] The drawing shows: Fig. 1 a vertical section of a threshold area of a door from the prior art, Fig. 2 a threshold area of a (not yet completely closed) door according to the invention in one of the Fig. 1 corresponding view with a sealing strip according to the invention and Fig. 3A-3C the sealing strip from Fig. 2 as a detail of area III in Fig. 2 during a closing process.
[0032] In Fig. 1 a threshold area of a door known from the prior art is shown in vertical section. The door has a surrounding frame (not shown here) made of frame profiles, a threshold profile 1 and a door leaf 2 which is hinged to the frame and has a surrounding sash profile 3. The threshold profile 1 comprises an inner shell 4 and an outer shell 5, which are connected to one another via an insulating bar 6. Above the insulating bar 6 there is a threshold grating 7 with a grooved surface to improve slip resistance. The sash profile 3 has an inner shell 8 and an outer shell 9, which are also connected to one another at a distance via insulating bars 10, 11. A glass pane 12 is arranged between the inner shell 8 and the outer shell 9 as a filling element.
[0033] 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 functions 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.
[0034] In Fig. 2 is a threshold area of a door according to the invention in one of the Fig. 1 corresponding view with a sealing strip 21 according to the invention. In the Fig. 3A-3C the sealing strip 21 is made of Fig. 2 as a detail of area III-A in Fig. 2 shown during a closing process. The sealing strip 21 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 acting as a sealing lip is formed. The base body 24 has a first contact zone 25 for establishing first contact with the stop strip 15. In addition, the sealing strip 21 has a web 26 protruding from the base body 24 and acting as a sealing lip. The web 26 is formed on the side of the base body 24 on which the first contact zone 25 is also arranged. 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 the direction transverse to the base strip 22. In the Fig. 2 and 3A-3C In the threshold area shown, the end corresponds to the lowest 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 occurs via the base body 24 of the sealing strip 21.
[0035] When pressure is applied to the base body 24 at the first contact zone 25, the free end 27 of the web 26 pivots in the direction of the first contact zone 25 of the base body 24. This happens during a closing process, as shown in the Fig. 3A-3C First, the stop bar 15 contacts the sealing bar 21 in the first contact zone 25 of the base body 24, as shown in Fig. 3B can be seen. When the door leaf 2 is pressed further, pressure is applied to the base body 24 in the first contact zone 25. As a result, the base body 24 bends in the area of the first contact zone 25 towards the interior and initiates 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 web 26 comes into contact with the stop bar 15 in a second contact zone 28. In the Fig. 3C In the closed position of the door shown, 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.
[0036] As in the Fig. 3A und 3B As can be seen, the web 26 runs essentially parallel to the base strip 22 in the unloaded state. The web 26 is arranged in the central region of the base body 24. This has the advantage that, when the door is closed, it is ensured that the stop strip 15 first touches the sealing strip 21 in the first contact zone 25. Furthermore, this ensures that the web 26 does not have to be bent excessively in order to come into contact with the stop strip 15.
[0037] The base body 24 has a cavity 29, which is circularly arc-shaped in the area of the first contact zone 25 with a central angle of over 270°. In the opposite lower corner, the cavity 29 is also circularly arc-shaped. Due to the hollow design of the base body 24, the base body 24 can deform slightly during a closing process and trigger the pivoting movement of the web 26 described above. The circular arc-shaped design of the cavity 29 further supports a slight deformation of the base body 24.
[0038] The stop bar 15 is in the Figuren 2 and 3A-CIn the illustrated and, in this respect, preferred embodiment, the stop strip 15 is designed as a projection. With appropriate dimensioning of the stop strip 15 and the sealing strip 21, it is possible for the stop strip 15 to be arranged between the web 26 and the base body 24 when the door is closed and to be virtually clamped between them. This results in particularly good sealing performance. In addition, the web 26 is pressed against the corner of the stop strip 15 facing the outside and extends downwards from the base body 24. The web 26 thus acts like a type of weatherboard, so that the water reaching the sealing strip 21 can easily drain away downwards.
[0039] The sealing strip 21 according to the invention offers improved sealing performance in that it is in contact with the stop strip 15 in two contact zones 25, 28 when the door is closed and is also designed as a type of weather strip, along which water occurring on the outside can easily drain downwards and thus there is no standing water on the stop strip 15.
Claims
1. Sealing strip (21) for sealing a door or window against a stop strip (15) of a threshold profile (1), 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 (22), a foot (23) arranged on the base strip (22) for fastening the sealing strip (21) to the door or 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 establishing a first contact with the stop strip (15), characterized in thatthe sealing strip (21) has a web (26) which projects from the base body (24) and functions as a sealing lip, said web having a free end (27), said web (26) having a second contact zone (28) for establishing a second contact with the stop strip (15), said free end (27) of the web being 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 said base body (24) forming 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).
2. Sealing strip according to claim 1, characterized in that the web (26) in the unloaded state of the sealing strip (21) runs in cross-section essentially parallel to the base strip (22).
3. Sealing strip according to claim 1 or 2, characterized in that the base body (24) has a cavity (29).
4. Sealing strip according to claim 3, characterized in thatthe cavity (29) in the region of the first contact zone (25) is circular in shape.
5. Sealing strip according to claim 4, characterized in that the cavity (29) in the region of the first contact zone (25) is circular in shape with a central angle of greater than 180°, in particular greater than 270°.
6. Sealing strip according to one of claims 1 to 5, characterized in that the sealing strip (21) is formed in one piece.
7. Sealing strip according to one of claims 1 to 6, characterized in that the foot (23) has a hollow space.
8. Sealing strip according to one of claims 3 to 7, characterized in that the cavity (29) of the base body (24) and / or the cavity of the foot (23) are filled with a foamed material.
9. Door or window, in particular with aluminum profiles, with a frame composed of individual frame profiles, optionally a sill profile (1) and a door or window sash (2) articulated to the frame with a circumferential sash profile (3), wherein a stop strip (15) is formed on the frame and / or the sill profile (1) and a sealing strip (21) is fastened 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 fastened to the frame and / or the sill profile, wherein the sealing strip (21) is in contact with the stop strip (15) when the door or window is closed, characterized in that the sealing strip (21) is designed according to one of claims 1 to 8.
10. Door or window according to claim 9, characterized in thatthe sealing strip (21) is attached to the door or window sash (2) and the stop strip (15) is formed on the frame and / or the threshold profile (1).
11. Door or window according to claim 9 or 10, characterized in that the stop strip (15) is designed as a projection on the frame and / or on the threshold profile (1) or on the door or window sash.
12. Door or window according to claim 11, characterized in that the stop strip (15) and the sealing strip (21) are dimensioned such that the stop strip (15) designed as a projection is arranged, when the door or window is closed, between a base body (24) acting as a sealing lip and a web (26) protruding from the base body (24) acting as a sealing lip and having a free end (27).
13. Door or window according to one of claims 9 to 12, characterized in that the sealing strip (21) extends substantially completely along the threshold profile (1).
14. Door or window according to one of claims 9 to 13, characterized in that the sealing strip (21) runs all the way around the frame and optionally the threshold profile (1) or all the way around the door or window sash.