Sealing element for sealing a building opening and window or door frame with at least one such sealing element
An L-shaped sealing element with insertion ramps and elastic material properties addresses the issue of inadequate sealing in extrusion grooves, providing a reliable, precise, and moisture-resistant seal for windows and doors in ETICS facades, ensuring structural integrity.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- GIESSLER DIRK
- Filing Date
- 2026-03-23
- Publication Date
- 2026-05-07
AI Technical Summary
Windows and doors in building walls with external thermal insulation composite systems (ETICS) or timber-frame facades are prone to structural damage due to moisture penetration through extrusion grooves in PVC and aluminum/steel window profiles, which are often inadequately sealed with sealants, leading to potential destruction of the structure.
An L-shaped sealing element with integrally connected legs is designed to fit into the extrusion grooves, featuring insertion ramps and elastic material properties, allowing it to be automatically manufactured and easily inserted, providing a precise, reliable seal without the need for drying time.
The sealing element ensures a permanently tight seal across the groove, preventing moisture ingress and allowing immediate installation of windows or doors, while ensuring alignment with the extrusion groove's geometry for effective rainwater prevention.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
[0001] The invention relates to a sealing element for sealing a penetration hole in an extrusion groove of a window or door frame, which has a first and a second extrusion profile that are mitered together in such a way that the extrusion groove, in the installed position of the window or door frame, faces an edge region of a building exterior wall that defines a window or door opening, extends from the first extrusion profile across the miter to the second extrusion profile and runs parallel to the longitudinal axis of the respective extrusion profile on each extrusion profile, wherein the extrusion groove on each extrusion profile is bounded by side walls and a groove base.wherein the side walls each have a rib-like projection projecting towards the extrusion groove, and the rib-like projections arranged on both sides of the extrusion groove are spaced apart from each other by a groove slot, and an intermediate space is arranged between the rib-like projections and the area of the groove base covered by them in the top view of the extrusion groove, wherein the sealing element is L-shaped with a first sealing element leg and a second sealing element leg integrally connected to it, wherein the first sealing element leg extends along a first longitudinal axis and the second sealing element leg extends along a second longitudinal axis, and the longitudinal axes define a plane of extension. - wherein the first sealing element leg has on its longitudinal side, which is opposite the longitudinal side on which the second sealing element leg projects from the first sealing element leg, a first planar boundary surface which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis of the first sealing element leg from an outer corner of the sealing element, where the sealing element legs are connected to each other, to the free end of the first sealing element leg, - wherein the second sealing element leg has on its longitudinal side, which is opposite the longitudinal side on which the first sealing element leg protrudes from the second sealing element leg, a second flat boundary surface, which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis of the second sealing element leg from the outer corner to the free end of the second sealing element leg.
[0002] Furthermore, the invention relates to a window or door frame with at least one such sealing element, wherein the window or door frame has an extrusion groove and at least a first and a second extrusion profile which are mitered together such that the extrusion groove, in the installation position of the window or door frame, faces an edge region of a building exterior wall that defines a window or door opening, extends from the first extrusion profile across the miter to the second extrusion profile, runs parallel to the longitudinal axis of the respective extrusion profile on each extrusion profile, and wherein the extrusion groove on each extrusion profile is bounded by side walls and a groove base.wherein the side walls each have a rib-like projection projecting towards the extrusion groove, and the rib-like projections arranged on both sides of the extrusion groove are spaced apart from each other by a groove slot, and a gap is arranged between the rib-like projections and the area of the groove base covered by them.
[0003] The VHS Building Damage Report, Building Construction 2023 / 24, pages 135 to 141, Fraunhofer IRB Verlag, 2024, states that windows and doors installed in building walls with external thermal insulation composite systems (ETICS) or timber-frame facades are relatively prone to structural damage caused by moisture penetrating the building wall. A major problem is the extrusion grooves in PVC and aluminum / steel window profiles, the so-called "component holes," which occur at the interfaces of various components such as window frames, window sills with edge profiles, reveals, and—if present—roller shutter guide rails. Extrusion grooves allow a window frame profile to be connected to a connecting profile, which has projections that correspond to the extrusion grooves and can be locked into place.
[0004] If the windowsill is to be installed recessed from the window frame, a windowsill connection profile is typically mounted below the lower horizontal window frame profile, which is also recessed from the window frame profile. It frequently occurs that one or even several extrusion grooves are exposed on the underside of the section of the window frame profile that protrudes beyond the windowsill connection profile. Since these grooves extend the entire length of the window into the reveals, rainwater can be channeled through them into the wall structure or insulation system during heavy rain. This can cause significant damage, even leading to the complete destruction of the structure.
[0005] To reduce the risk of such damage, the 2021 guideline "Connections to Windows and Roller Shutters in Plaster, External Thermal Insulation Composite Systems, and Drywall Construction," published by the professional associations Baden-Württemberg Plasterers' Association for Interior Finishing and Facades, Baden-Württemberg Glass, Window, and Facade Association, the German Federal Association of Roller Shutters and Sun Protection, and the German Federal Association for Paint, Design, and Building Protection, advises that these extrusion grooves in the corner area of the window frame should be sealed with a sealant, such as silicone. However, a disadvantage is that the seal of the extrusion grooves sealed in this way depends on the skill of the tradesperson applying the sealant and is therefore not a reliable process. Furthermore, drying times for the sealant must be observed.
[0006] However, in the majority of windows that are installed, this groove is either not sealed at all or only inadequately sealed with sealant, without proof of tightness and without quality assurance.
[0007] The task is therefore to create a sealing element of the type mentioned above that enables a simple, quick, and reliable seal of a penetration hole in an extrusion groove of a window or door frame. Furthermore, the task is to create a window or door frame of the type mentioned above incorporating at least one such sealing element.
[0008] This problem is solved with respect to the sealing element by the features of claim 1. These provide that the sealing element is L-shaped with a first sealing element leg and a second sealing element leg integrally connected to it, that the first sealing element leg extends along a first longitudinal axis and the second sealing element leg extends along a second longitudinal axis, and that the longitudinal axes define a plane of extension. - that the first sealing element leg has on its longitudinal side, which is opposite the longitudinal side on which the second sealing element leg protrudes from the first sealing element leg, a first flat boundary surface, which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis of the first sealing element leg from an outer corner of the sealing element, where the sealing element legs are connected to each other, to the free end of the first sealing element leg, - that the second sealing element leg has a second flat boundary surface on its longitudinal side, which is opposite the longitudinal side on which the first sealing element leg protrudes from the second sealing element leg, which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis of the second sealing element leg from the outer corner to the free end of the second sealing element leg, - that each sealing element leg has a leg section extending along its longitudinal axis, which has an insertion ramp on its side opposite the flat boundary surface of the sealing element leg in question, which extends along the longitudinal axis of the sealing element leg in question and has an insertion ramp on both sides running along the longitudinal axis of the leg section, - that the width which the insertion ramp areas each have in a cross-sectional plane arranged orthogonally to the longitudinal axis of their leg section parallel to its planar boundary surface between the insertion ramps, - starting from the point of the insertion ramp area furthest from the planar boundary surface of this leg section in the cross-sectional plane to the point of the insertion ramp area closest to this boundary surface - increases from a first width value to a second width value, - that the leg sections between their insertion ramp area and their planar boundary surface each have a base area which has grooves on both sides, each extending along the longitudinal axis of the leg section in question, wherein the base area at its narrowest point between the grooves in the cross-sectional plane arranged orthogonally to the longitudinal axis of the leg section in question and parallel to its planar boundary surface has a third width value which is smaller than the second width value, - that the width of the boundary surfaces of the leg sections in each case has a fourth width value in the cross-sectional plane of the respective leg section, which is greater than the third width value, and that the elasticity of the material of the sealing element legs is selected such that when the sealing element is arranged in a pre-assembly position in a window or door frame where the clear width of the groove slot is smaller than the third width value, - in which the sealing element is arranged outside the extrusion groove, - the first sealing element leg runs with its longitudinal axis parallel to a first section of the extrusion groove arranged on the first extrusion profile, - the second sealing element leg runs with its longitudinal axis parallel to a second section of the extrusion groove arranged on the second extrusion profile, and - the insertion ramp areas of the sealing element legs face the slot of the extrusion groove, The sealing element legs can be pressed into the extrusion groove by pressure forces, preferably applied with the human hand to the flat boundary surfaces, in such a way that the rib-like projections of the extrusion groove come into contact at the narrowest point of the base area.
[0009] Advantageously, the sealing element can be manufactured automatically and separately from the window or door frame, and then easily inserted into the extrusion groove. Compared to a paste-like sealant that is manually applied to the extrusion groove, the sealing element can thus be mass-produced with high precision, dimensional accuracy, and repeatability. This ensures a reliable seal of the opening.
[0010] Since the sealing element, when installed on a window or door frame where the clear width of the groove is smaller than the width of the sealing element at its narrowest point at the base, is clamped against the restoring force of the sealing element's elastic material between the rib-like projections of the extrusion groove, the sealing element ensures a reliable and permanently tight seal across the groove. Another advantage is that no drying time is required when installing the sealing element in the extrusion groove. This allows the window or door frame to be installed in a building wall immediately after the sealing elements have been inserted into the extrusion groove on site. Furthermore, the sealing element can also be pre-installed in the extrusion groove by the manufacturer during the production of the window or door frame, eliminating the need for subsequent drying time.
[0011] Since the sealing element is L-shaped, mounted at an angle to the window or door frame, and the insertion ramp is wider than the narrowest point of the base, the sealing element—when mounted on the extrusion groove of a window or door frame where the clear width of the groove slot is smaller than the width of the sealing element at the narrowest point of the base—is positioned in a precisely predetermined position relative to the miter of the window or door frame when installed. If the geometry of the sealing element is adapted to the geometry of the extrusion groove, this ensures that, in the installed position, the two flat end faces of the sealing element legs are in direct alignment with the edges of the extrusion groove's side walls that project furthest from the groove base on either side of the flat end faces.
[0012] Thus, on the side of the window or door frame facing the building wall in its installed position, the sealing element forms a continuously flat surface extending from the flat boundary surface to beyond the sections of the extrusion groove's side walls on both sides. A sealing tape, particularly a compression tape, can be applied to this flat surface when the window or door is installed in an opening in the building wall. This tape is positioned between the window or door frame and a reveal panel mounted on the reveal of the opening in the building wall. This sealing tape and the sealing element seal the opening against the ingress of rainwater during driving rain.
[0013] The length of the sealing element legs is preferably selected such that rainwater, which enters the extrusion groove at the free end of the lower sealing element leg (in the installed position) during driving rain, through the gap between the groove base and the rib-like projections provided on the side walls of the extrusion groove, cannot rise to the free end of the other sealing element leg. If the flat boundary surfaces of the sealing element seal the extrusion groove along their entire length, then the rainwater cannot penetrate the building wall. Assuming that the pressure with which the rainwater enters the free end of the lower sealing element leg (in the installed position) does not exceed 600 Pa, the length of the other sealing element leg must be selected so that a water column of at least 6 cm in height can form within it.
[0014] In a preferred embodiment of the invention, the insertion ramps of the leg sections are convex in a cross-sectional plane arranged orthogonally to the longitudinal axis of the respective leg section. With the sealing element in the assembly position, this allows a relatively large area of the groove space of the extrusion slot to be filled by the sealing element. Nevertheless, the sealing element, in its pre-assembly position, can be inserted into the extrusion slot by the installer with relatively little force.
[0015] It is advantageous if the sealing element has a solid material cross-section. This allows for a firm connection between the sealing element and the window or door frame in the installed position.
[0016] In a preferred embodiment of the invention, the leg sections of the sealing element have an Ω-shaped cross-section in a plane arranged orthogonally to their longitudinal axis. In the assembly position, the leg sections can engage the rib-like projections of the extrusion groove both on their front side facing away from the base of the extrusion groove and on their rear side facing the base of the groove.
[0017] In a preferred embodiment of the invention, the sealing element consists of a material that can be printed using a 3D printer. This makes it possible to cost-effectively produce precisely dimensioned sealing elements for a large number of different window or door frames, each individually adapted to the geometry of the extrusion groove of the respective window or door frame, using a 3D printer.
[0018] In a further development of the invention, the sealing element consists of a thermoplastic urethane-based polymer or incorporates such a polymer. These polymers are commercially available with different Shore A hardnesses and can be readily printed using a 3D printer.
[0019] It is advantageous if the thermoplastic polymer has a hardness between 85 Shore A and 95 Shore A, and preferably between 87 Shore A and 93 Shore A. Tests have shown that the sealing element is then firmly connected to the window or door profile in the installed position, but can still be mounted onto the window or door profile by hand with an acceptable amount of force.
[0020] In a preferred embodiment of the invention, it is provided that each sealing element leg has a base area between the point where the width of the base area has the third width value and the planar boundary surface of the respective sealing element leg, which extends along the longitudinal axis of the respective sealing element leg, and that the width which the base area has in the cross-sectional plane arranged orthogonally to the longitudinal axis of the respective sealing element leg parallel to its planar boundary surface, increases continuously to the fourth width value from the point where the width of the base area has the third width value towards the planar boundary surface of the respective sealing element leg.The base area can be adapted to the window or door profile in such a way that, in the installed position of the sealing element, the opposing side surfaces of the base area lie flush against a rib-like projection on a side wall of the extrusion groove. The base areas preferably extend continuously from the free ends of the sealing element legs to the outer corner and are connected to each other at the outer corner.
[0021] In a further development of the invention, the sealing element has a cross-section at a corner region connecting the sealing element legs that differs from the cross-section of the leg sections in order to create space for a weld seam arranged at the miter of the window or door frame. This makes it possible to insert the sealing element into the extrusion groove at the weld seam in such a way that, in the installed position, the two flat end surfaces of the sealing element legs are in direct alignment with the edges of the side walls of the extrusion groove that project furthest from the groove base on both sides of the flat end surfaces. The cross-section in the corner region, which differs from the cross-section of the leg sections, is preferably selected such that, in the installed position, the sealing element has a negative form of the weld seam at the weld seam and bears against the restoring force of its elastic material at the weld seam.
[0022] In a preferred embodiment, the cross-section that deviates from that of the leg sections is only provided in a part of the corner area located outside the base area. In this case, the base area can extend uninterrupted over the entire length of the sealing element legs.
[0023] It is advantageous if, at the points where the corner area, which has a cross-section differing from that of the leg sections, adjoins a leg section, a step or shoulder is arranged laterally on both sides of the sealing element, at which the width of the respective sealing element leg decreases in a plane orthogonal to the longitudinal axis of the respective sealing element leg and parallel to the flat boundary surface of the respective sealing element leg – starting from the sealing element leg towards the corner area. Sufficient space is then available in the corner area for the weld seam provided at the miter of the window or door profile, which is particularly advantageous for window or door frames made of plastic.
[0024] In an advantageous embodiment of the invention, the sealing element has an inner corner on its inner side opposite the outer corner, between the sealing element legs, wherein the distance between the insertion ramps and the inner corner is between 1 and 3 millimeters, and in particular between 1.5 and 2.5 millimeters. The sealing element, arranged in the pre-assembly position, can then be easily pressed into the extrusion groove at the weld seam during assembly.
[0025] With regard to the window or door frame of the type mentioned above, the aforementioned problem is solved by the features of claim 15. These provide that the window or door frame has an extrusion groove and at least a first and a second extrusion profile, which are mitered together such that, in the installed position of the window or door frame, the extrusion groove faces an edge region of a window or door opening provided in an exterior wall of a building, extends from the first extrusion profile across the miter to the second extrusion profile, runs parallel to the longitudinal axis of the respective extrusion profile on each extrusion profile, and that the extrusion groove on each extrusion profile is bounded by side walls and a groove base.that the side walls each have a rib-like projection projecting towards the extrusion groove, and the rib-like projections arranged on both sides of the extrusion groove are spaced apart from each other, the clear width w of which is less than the third width value b3 of the sealing element, and a gap is arranged between the rib-like projections and the area of the groove base covered by them in view of the extrusion groove, - that the insertion ramp area of the first sealing element leg projects into the spaces between the strip-like projections and the groove base of the first extrusion profile, - that the insertion ramp area of the second sealing element leg projects into the spaces between the strip-like projections and the groove base of the second extrusion profile, - that the rib-like projections of the extrusion groove of the first sealing element leg engage in the grooves provided laterally on both sides of the base area of this sealing element leg in such a way that they come into contact with the grooves in a sealing manner against the restoring force of its elastic material, - that the rib-like projections of the extrusion groove of the second sealing element leg engage in the grooves provided laterally on both sides of the base area of this sealing element leg in such a way that they come into contact with the grooves in a sealing manner against the restoring force of its elastic material, - that the first flat boundary surface is aligned on both sides with the edges of the side walls of the extrusion groove that project furthest from the bottom of the extrusion groove of the first extrusion profile in a straight extension, and - that the second flat boundary surface is aligned on both sides with the edges of the side walls of the extrusion groove that project furthest from the bottom of the extrusion groove of the second extrusion profile in a straight extension.
[0026] An embodiment of the invention is explained in more detail below with reference to the drawing. It shows: Fig. 1 a window or door frame installed in a window or door opening of a building wall, comprising a first and a second extruded profile joined together at a miter joint, the window frame being shown only partially, Fig. 2 a partial cross-section through the first or second extrusion profile, Fig. 3 a representation similar Fig. 1, wherein, however, a reveal panel is mounted on the reveal of the window or door opening, between which and the window or door frame a sealing strip is arranged, Fig. 4 an isometric representation of an L-shaped sealing element for sealing a building opening, Fig. 5 a side view of the sealing element, Fig. 6 a top view of a flat boundary surface of a sealing element leg of the sealing element, Fig. 7 a cross-section through the sealing element leg, Fig. 8 an isometric partial view of the window or door frame with the sealing element in the pre-assembly position, Fig. 9 a representation similar Fig. 8, wherein the sealing element is arranged in the mounting position in an extrusion groove of the door frame, Fig. 10 a representation similar Fig. 7, however, the sealing element is installed in the extrusion groove of the window or door frame, Fig. 11 a representation similar Fig. 8, however, where the window or door frame is installed in the window or door opening of a building wall, Fig. 12 a representation similar Fig. 9, however, where the window or door frame is installed in the window or door opening of a building wall, Fig. 13 a representation similar Fig. 1, however, the sealing element is installed in the extrusion groove, Fig. 14 an enlarged section from Fig. 5, which shows a corner area of the sealing element, and Fig. 15 a cross-section through a sealing element leg along the in Fig. 14, level designated XV.
[0027] A in Fig. A window or door frame 1, only partially shown, which is known per se, has a first and a second extrusion profile 2, 2' arranged transversely to it, which are mitered and butt-welded together. In the installed position of the window or door frame 1, the first extrusion profile 2 is arranged horizontally and the second extrusion profile 2' is arranged vertically. On its outer surface, which in the installed position faces the edge of a window or door opening in an exterior wall of a building, the window or door frame 1 has an extrusion groove 3 that extends uninterrupted from the first extrusion profile 2 across the miter to the second extrusion profile 2' such that a section of the extrusion groove 3 provided on the first extrusion profile 2 faces the lower edge of the window or door opening in the installed position, and a section of the extrusion groove 3 provided on the second extrusion profile 2' faces a reveal of the window or door opening.The extrusion groove 3 runs parallel to the longitudinal axis of the respective extrusion profile 2, 2' on the extrusion profiles 2, 2". A connecting profile 2A is arranged below the first extrusion profile 2 and is set back from the window frame 1 on the outside of the window frame facing away from the interior of the building.
[0028] As in Fig. As can be seen in Figure 2, the extrusion groove 3 on the extrusion profiles 2, 2' is bounded by side walls 4A, 4B and a groove base 5, which connects the side walls 4A, 4B in a U-shape. On their facing inner surfaces, the side walls 4A, 4B each have a rib-like projection 6A, 6B projecting towards the extrusion groove 3. A groove slot 7 is formed between the rib-like projections 6A, 6B. In the installed position, a first section of the groove slot 7 on the first extrusion profile 2 faces the lower edge of the window or door opening, and a second section of the groove slot 7 on the second extrusion profile 2 faces the reveal.
[0029] Between the rib-like projections 6A, 6B and the area of the groove base 5 covered by each of these projections when viewed from above onto the extrusion groove 3, a gap 8A, 8B is arranged. Furthermore, in Fig. 2 shows that the rib-like projections each have an inclined surface 9A, 9B on their facing sides. Starting from the point of the extrusion groove 3 furthest from the groove base 5, the groove space enclosed between the inclined surfaces 9A, 9B tapers in a groove arranged orthogonally to the longitudinal axis of the respective extrusion profile 2, 2', in the plane of the drawing. Fig. 2 corresponding cross-sectional plane towards the groove base 5.
[0030] To seal the extrusion groove 3 against a trade hole 10 ( Fig. 1), which in the installation position of the window or door frame 1 between its underside and an area arranged below it of a reveal plate 11 covering the reveal of the window or door opening ( Fig. 3) in a section of the extrusion groove 3 of the first extrusion profile 2', a sealing element 12 is arranged in the extrusion groove 3 in the area of the miter.
[0031] As in Fig. As can be seen in Figure 4, the sealing element 12 is L-shaped with a first sealing element leg 13 and a second sealing element leg 13' integrally connected to it, wherein the first sealing element leg 13 extends along a first longitudinal axis 14 and the second sealing element leg 13' extends along a second longitudinal axis 14' and the longitudinal axes 14, 14' span a plane of extension that is parallel to the plane of the drawing. Fig. 5 is arranged.
[0032] The first sealing element leg 13 has on its longitudinal side, which is opposite the longitudinal side on which the second sealing element leg 13' projects from the first sealing element leg 13, a first flat boundary surface 15 ( Fig. 6), which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis 14 of the first sealing element leg 13 from an outer corner 16 of the sealing element 12, at which the sealing element legs 13, 13' are connected to each other, to the free end 17 of the first sealing element leg 13.
[0033] In a corresponding manner, the second sealing element leg 13' has on its longitudinal side, which is opposite the longitudinal side on which the first sealing element leg 13 protrudes from the second sealing element leg 13', a second flat boundary surface 15', which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis 14' of the second sealing element leg 13' from the outer corner 16 to the free end 17' of the second sealing element leg 13'.
[0034] As in Fig. 4 and Fig. As can be seen particularly well in Figure 7, each sealing element leg 13, 13' has a leg section 18, 18' extending along its longitudinal axis 14, 14', which has an insertion ramp 19, 19' on its side opposite the planar boundary surface 15, 15' of the respective sealing element leg 13, 13', which extends along the longitudinal axis 14, 14' of the respective sealing element leg 13, 13' and has an insertion ramp 20 on each side running along the longitudinal axis 14, 14' of the leg section.
[0035] Between their insertion ramps 20, the insertion ramp regions 19, 19' each have a surface region 21, 21' at their point furthest from the planar boundary surface 15, 15' of the respective sealing element leg 13, 13', which runs parallel to this planar boundary surface 15, 15'.
[0036] In Fig. Figure 7 shows that the width which the insertion ramps 19, 19' each have in an orthogonal to the longitudinal axis 14, 14' of their leg section 18, 18' lies in the plane of the drawing. Fig. 6 corresponding cross-sectional plane parallel to its planar boundary surface 15, 15' between the insertion ramps 20, - starting from the point of the insertion ramp area 19, 19' furthest from the planar boundary surface 15, 15' of this leg section 18, 18' in the cross-sectional plane to the point of the insertion ramp area 19, 19' closest to this boundary surface 15, 15' - increases from a first width value b1 to a second width value b2.
[0037] Between their leading edge region 19, 19' and their planar boundary surface 15, 15', the leg sections 18, 18' each have a base region 22, 22', which has grooves 23 on both sides, each extending along the longitudinal axis 14, 14' of the respective leg section 18, 18', wherein the base region 22, 22' at its narrowest point between the grooves 23 in the cross-sectional plane arranged orthogonally to the longitudinal axis 14, 14' of the respective leg section 18, 18' parallel to its planar boundary surface 15, 15' has a third width value b3, which is smaller than the second width value b2.
[0038] At this narrowest point, the base region 22, 22' of each sealing element leg 13, 13' has a flat side surface 24 on both sides of the base region 22, 22', between the insertion chamfer region 19, 19' and the flat boundary surface 15, 15' of the respective sealing element leg 13, 13'. This flat side surface 24 is arranged orthogonally to the plane of extension of the sealing element and runs parallel to the longitudinal axis 14, 14' of the respective sealing element leg 13, 13'. Between the surface region 21 and the flat side surfaces 24, the leg sections 18, 19' are each convexly shaped.
[0039] The width of the boundary surfaces 15, 15' of the leg sections 18, 18' each has a fourth width value b4 in the cross-sectional plane of the respective leg section 18, 18', which is larger than the third width value b3. The clear width w of the groove slot 7 of the window or door frame 1 is smaller than the third width value b3.
[0040] In Fig. Figure 7 shows that the sealing element legs 13, 13' each have a base area 25, 25' between a region arranged between their flat side surfaces 24 and their flat boundary surface 15, 15', which extends continuously from this area towards the flat boundary surface 15, 15' from the third width value b3 to a fourth width value b4 ( Fig. 7).
[0041] The elasticity of the material of the sealing element legs 13, 13' is selected such that when the sealing element 12 is in a Fig. 8 is arranged in the pre-assembly position shown, - in which the sealing element 12 is arranged outside the extrusion groove 3, - the first sealing element leg 13 with its longitudinal axis 14 runs parallel to a first section of the extrusion groove 3 arranged on the first extrusion profile 2, - the second sealing element leg 13' with its longitudinal axis 14' runs parallel to a second section of the extrusion groove 3 arranged on the second extrusion profile 2', and - the insertion ramps 19, 19' of the sealing element legs 13, 13' face the slot 7 of the extrusion groove 3, the sealing element legs 13, 13' can be pressed into the extrusion groove 3 in the direction of the arrows PF by pressure forces that can be applied to the flat boundary surfaces 15, 15' by hand ( Fig. 8, Fig. 9) that the rib-like projections 6A, 6B of the extrusion groove 3 come into contact with the restoring force of the elastic material of the sealing element 12 at the narrowest point of the base area 22, 22'.
[0042] In Fig. Figure 10 shows that the cross-sectional dimensions of the extrusion groove 3 are adapted to the cross-sectional dimensions of the leg sections 18, 18' such that - the flat boundary surfaces 15, 15' of the leg sections 18, 18' in the assembly position of the sealing element 12 are aligned with the edges of the side walls 4A, 4B of the extrusion groove 3 that project furthest from the base of the groove in a straight extension, - the rib-like projections 6A, 6B of the extrusion groove 3 engage in a form-fitting manner in the grooves 23 provided laterally on the leg sections 18, 18' in the assembly position of the sealing element 12 and bear against the flat side surfaces 24 and - the surface area 21 is located at the base of the groove 5.
[0043] Advantageously, the sealing element 12 is installed in the extrusion groove 3 in the window or door opening of the building's outer wall before the window or door frame 1 is installed ( Fig. 8 and Fig. 9). As in Fig. 11 and Fig. As can be seen in 12, the sealing element 12 can also be inserted into the extrusion groove 3 after the window or door frame 1 has been installed in the window or door opening, as long as the reveal plate 11 has not yet been mounted on the reveal 26 of the building's outer wall ( Fig. 13). On the end face of the reveal panel 11 facing the window or door frame 1, a compression band or similar sealing tape 30 is arranged, which, after installation of the reveal panel 11 on the reveal of the building wall, lies flush against the first boundary surface 15 of the first sealing element leg 13 and the adjacent end faces of the side walls 4A, 4B of the extrusion groove 3.
[0044] It should also be mentioned that the leg sections 18, 18' of the sealing element 12 each have an Ω-shaped solid material cross-section along their entire length ( Fig. 3, Fig. 4, Fig. 7, Fig. 10 and Fig. 13).
[0045] At a corner area 27 connecting the sealing element legs 13, 13', the sealing element 12 has a cross-section that differs from that of the leg sections 18, 18' in order to provide space for a weld seam, not shown in detail in the drawing, located at the miter joint of the window or door frame 1. As shown in Fig. As can be seen particularly well in figure 14, this corner area 27 is approximately L-shaped in plan view onto the plane of extension spanned by the longitudinal axes 14, 14' of the sealing element legs 13, 13'. The corner area 27 extends - on the first sealing element leg 13 from its base area 25 to a surface section 28 of the first sealing element leg 13 opposite it, arranged between the insertion ramp area 19 of the first sealing element leg 13 and the second sealing element leg 13' and - on the second sealing element leg 13' from its base area 25' to a section of the surface section 28' of the first sealing element leg 13 opposite it, arranged between the insertion ramp area 19' of the second sealing element leg 13' and the surface area 21 of the first sealing element leg 13.
[0046] Surface section 28 borders surface area 21 of the first sealing element leg 13 and extends this surface area 21 in a straight line to an inside corner of the sealing element 12. Surface section 28' borders surface area 21' of the second sealing element leg 13 and extends this surface area 21' in a straight line to an inside corner of the sealing element 12.
[0047] As in Fig.As can be seen in Figure 15, the sealing element 12 has a fifth width b5 at the corner region 27, which is smaller than the third width b3. At points where the corner region 27 adjoins a leg section 18, 18', a step or a shoulder 29A, 29B is arranged laterally on both sides of the sealing element 12. QUOTES INCLUDED IN THE DESCRIPTION
[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited non-patent literature
[0000] VHS Building Damage Report, Building Construction 2023 / 24, pages 135 to 141, Fraunhofer IRB Verlag, 2024
[0003] Connections to windows and roller shutters in plaster, external thermal insulation composite systems and drywall construction”, Edition 2021
[0005]
Claims
[1] Sealing element (12) for sealing a building opening (10) on an extrusion groove (3) of a window or door frame (1), which has a first and a second extrusion profile (2, 2') that are mitered together such that the extrusion groove (3) in the installed position of the window or door frame faces an edge region of a building exterior wall that defines a window or door opening, extends from the first extrusion profile (2) across the miter to the second extrusion profile (2') and runs parallel to the longitudinal axis (14, 14') of the respective extrusion profile (2, 2') on each extrusion profile (2, 2'), wherein the extrusion groove (3) on each extrusion profile (2, 2') is bounded by side walls (4A, 4B) and a groove base (5), wherein the side walls (4A, 4B) each form a extrusion groove (3) towards projecting rib-like projection (6A,6B) and the rib-like projections (6A, 6B) arranged on both sides of the extrusion groove (3) are spaced apart from each other by a groove slot (7) and an intermediate space (8A, 8B) is arranged between the rib-like projections (6A, 6B) and the area of the groove base (5) covered by them in the top view of the extrusion groove (6A, 6B), wherein the sealing element (12) is L-shaped with a first sealing element leg (13) and a second sealing element leg (13') integrally connected to it, wherein the first sealing element leg (13) extends along a first longitudinal axis (14) and the second sealing element leg (13') extends along a second longitudinal axis (14') and the longitudinal axes (14, 14') define a plane of extension, - wherein the first sealing element leg (13) has on its longitudinal side, which is opposite the longitudinal side on which the second sealing element leg (13') projects from the first sealing element leg (13), a first planar boundary surface (15) which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis (14) of the first sealing element leg (13) from an outer corner (16) of the sealing element (12), at which the sealing element legs (13, 13') are connected to each other, to the free end (17) of the first sealing element leg (13), - wherein the second sealing element leg (13') has on its longitudinal side, which is opposite the longitudinal side on which the first sealing element leg (13) projects from the second sealing element leg (13'), a second flat boundary surface (15') which is arranged orthogonally to the extension plane and runs parallel to the longitudinal axis of the second sealing element leg (13') from the outer corner (16) to the free end (17') of the second sealing element leg (13'), - wherein each sealing element leg (13, 13') has a leg section (18, 18') extending along its longitudinal axis (14, 14'), which has an insertion ramp (19, 19') on its side opposite the planar boundary surface (15, 15') of the respective sealing element leg (13, 13') which extends along the longitudinal axis (14, 14') of the respective sealing element leg (13, 13') and has an insertion ramp (20) on each side running along the longitudinal axis (14, 14') of the leg section (18, 18'), - wherein the width which the insertion ramps (19, 19') each have in a cross-sectional plane arranged orthogonally to the longitudinal axis (14, 14') of their leg section (18, 18') parallel to its planar boundary surface (15, 15') between the insertion ramps (20), - starting from the point of the insertion ramp (19, 19') furthest from the planar boundary surface (15, 15') of this leg section (18, 18') in the cross-sectional plane to the point of the insertion ramp (19, 19') closest to this boundary surface (15, 15') - increases from a first width value (b1) to a second width value (b2), - wherein the leg sections (18, 18') each have a base section (22, 22') between their insertion ramp area (19, 19') and their planar boundary surface (15, 15') which has grooves (23) on both sides, each extending along the longitudinal axis (14, 14') of the respective leg section (18, 18'), wherein the base section (22, 22') at its narrowest point between the grooves (23) in the cross-sectional plane arranged orthogonally to the longitudinal axis (14, 14') of the respective leg section (18, 18') parallel to its planar boundary surface (15, 15') has a third width value (b3) which is smaller than the second width value (b2), - wherein the width of the boundary surfaces (15, 15') of the leg sections (18, 18') each has a fourth width value (b4) in the cross-sectional plane of the respective leg section (18, 18') which is greater than the third width value (b3), and wherein the elasticity of the material of the sealing element leg (13, 13') is selected such that when the sealing element (12) is arranged in a pre-assembly position in a window or door frame (1) in which the clear width (w) of the groove slot (5) is smaller than the third width value (b3), - in which the sealing element (12) is arranged outside the extrusion groove (3), - the first sealing element leg (13) with its longitudinal axis (14) runs parallel to a first section of the extrusion groove (3) arranged on the first extrusion profile (2), - the second sealing element leg (13') with its longitudinal axis (14') runs parallel to a second section of the extrusion groove (3) arranged on the second extrusion profile (2'), and - the insertion ramp areas (19, 19') of the sealing element legs (13, 13') face the slot (5) of the extrusion groove (3), The sealing element legs (13, 13') can be pressed into the extrusion groove (3) by pressure forces that can be applied to the flat boundary surfaces (15, 15') by the human hand, such that the rib-like projections (6A, 6B) of the extrusion groove (3) come into contact at the narrowest point of the base area (22, 22'). [2] Sealing element (12) according to claim 1, characterized by , that the insertion ramps (20) of the leg sections (18, 18') are each convex in a cross-sectional plane arranged orthogonally to the longitudinal axis (14, 14') of the respective leg section (18, 18'). [3] Sealing element (12) according to 1 or 2, characterized by , that the sealing element (12) has a solid material cross-section. [4] Sealing element (12) according to one of claims 1 to 3, characterized by , that the leg sections (18, 18') of the sealing element (12) have an Ω-shaped cross-section in a plane arranged orthogonally to their longitudinal axis (14, 14'). [5] Sealing element (12) according to claims 1 to 4, characterized by , that the sealing element (12) is made of a material that can be printed with a 3D printer. [6] Sealing element (12) according to any one of claims 1 to 5, characterized by that the sealing element (12) consists of or incorporates a thermoplastic polymer based on urethane. [7] Sealing element (12) according to one of claims 1 to 6, characterized by that the thermoplastic polymer has a hardness between 85 Shore A and 95 Shore A and preferably between 87 Shore A and 93 Shore A. [8] Sealing element (12) according to one of claims 1 to 7, characterized by, that each sealing element leg (13, 13') has a base area (25, 25') between the point where the width of the base area (22, 22') has the third width value (b3) and the planar boundary surface (15, 15') of the respective sealing element leg (13, 13'), which extends along the longitudinal axis (14, 14') of the respective sealing element leg (13, 13'), and that the width which the base area (25, 25') has in the cross-sectional plane arranged orthogonally to the longitudinal axis (14, 14') of the respective sealing element leg (13, 13') parallel to its planar boundary surface (15, 15'), - starting from the point where the width of the base area (22, 22') has the third width value (b3), to the planar boundary surface (15, 15') of the relevant sealing element leg (13, 13') continuously increases to the fourth width value (b4). [9] Sealing element (12) according to claim 8, characterized by, that the base areas (25, 25') each extend without interruption from the free ends (17, 17') of the sealing element legs (13, 13') to the outer corner (16) and are connected to each other at the outer corner. [10] Sealing element (12) according to any one of claims 1 to 9, characterized by , that the sealing element (12) has a cross-section different from that of the leg sections (18, 18') at a corner area (27) connecting the sealing element legs (13, 13') to provide space for a weld seam arranged at the miter of the window or door frame (1). [11] Sealing element (12) according to one of claims 8 to 10, characterized by , that the cross-section which differs from the cross-section of the leg sections (18, 18') is only provided in a part of the corner area (27) located outside the base area (25, 25'). [12] Sealing element (12) according to one of claims 1 to 11, characterized by, that at the points where the corner region (27) which has a cross-section differing from that of the leg sections (18, 18') adjoins a leg section (18, 18'), a step or a shoulder (29, 29') is arranged laterally on both sides of the sealing element (12), at which the width of the respective sealing element leg (13, 13') decreases in a plane arranged orthogonally to the longitudinal axis (14, 14') of the respective sealing element leg (13, 13') parallel to the planar boundary surface (15, 15') of the respective sealing element leg (13, 13') - starting from the sealing element leg (13, 13') towards the corner region (27). [13] Sealing element (12) according to any one of claims 1 to 12, characterized by, that the sealing element (12) has an inside corner on its inner side opposite the outer corner (16) between the sealing element legs (13, 13'), and that the distance between the insertion ramp areas (19, 19') and the inside corner is between 1 and 3 millimeters and in particular between 1.5 and 2.5 millimeters. [14] Sealing element (12) according to any one of claims 1 to 13, characterized by , that the free end of the first sealing element leg (13) is spaced between 6.5 cm and 10 cm, in particular between 6.5 cm and 9 cm and preferably between 6.5 cm and 8.5 cm from the second planar boundary surface (15') spanned plane, and / or that the free end of the second sealing element leg (13') is spaced between 6.5 cm and 10 cm, in particular between 6.5 cm and 9 cm and preferably between 6.5 cm and 8.5 cm from the first planar boundary surface (15) spanned plane. [15] Window or door frame (1) with at least one sealing element (12) according to one of claims 1 to 14, wherein the window or door frame (1) has an extrusion groove (3) and at least one first and one second extrusion profile (2, 2') which are mitered together such that the extrusion groove (3) in the installation position of the window or door frame (1) faces an edge region of a building exterior wall defining a window or door opening, extends from the first extrusion profile (2) across the miter to the second extrusion profile (2'), runs parallel to the longitudinal axis (14, 14') of the respective extrusion profile (2, 2') on the extrusion profiles (2, 2'), and wherein the extrusion groove (3) is bounded on each extrusion profile (2, 2') by side walls (4A, 4B) and a groove base (5), wherein the Side walls (4A, 4B) each have a rib-like projection (6A) extending towards the extrusion groove (3).6B) and the strip-like projections (6A, 6B) arranged on both sides of the extrusion groove (3) are spaced apart from each other by a groove slot (5) whose clear width (w) is smaller than the third width value (b3) of the sealing element (12), and an intermediate space (8A, 8B) is arranged between the strip-like projections (6A, 6B) and the area of the groove base (5) covered by them in the top view of the extrusion groove (3), - wherein the insertion ramp area (19) of the first sealing element leg (13) projects into the spaces (8A, 8B) between the strip-like projections (6A, 6B) and the groove base (5) of the first extrusion profile (2), - wherein the insertion ramp area (19') of the second sealing element leg (13') projects into the spaces (8A, 8B) between the strip-like projections (6A, 6B) and the groove base (5) of the second extrusion profile (2'), - wherein the rib-like projections (6A, 6B) of the extrusion groove (3) of the first sealing element leg (13) engage in the grooves (23) provided laterally on both sides of the base area (22) of this sealing element leg (13) in such a way that they come into contact with the grooves (23) sealingly against the restoring force of its elastic material, - wherein the rib-like projections (6A, 6B) of the extrusion groove (3) of the second sealing element leg (13') engage in the grooves (23) provided laterally on both sides of the base area (22') of this sealing element leg (13') in such a way that they come into contact with the grooves (23) sealingly against the restoring force of its elastic material, - wherein the first planar boundary surface (15) is aligned on both sides with the edges of the side walls (4A, 4B) of the extrusion groove (3) that project furthest from the groove base (5) of the extrusion groove (3) of the first extrusion profile (2) in a straight extension, and - wherein the second flat boundary surface (15') is aligned on both sides with the edges of the side walls (4A, 4B) of this extrusion groove (3) that project furthest from the groove base (5) of the extrusion groove (3) of the second extrusion profile (2') in a straight extension.