Connecting profile and method for installing a connecting profile

Abstract

The invention relates to a connecting profile for forming a connection area between a wall of a building and the underside of a window sill, which has an angle of inclination relative to the horizontal, wherein the connecting profile is formed with a plastic material and has an approximately T-shaped cross-section, comprising a main profile web which is directed approximately vertically in the installation position and is designed for connecting to wall plaster and / or wall insulation and / or a wall seal, and an inner profile web and an outer profile web which are each directed transversely to the main profile web and are designed for contact with the underside of the window sill, wherein the inner profile web is directed towards the interior of the wall and the outer profile web is directed outwards away from the wall.According to the invention, the inner profile web and / or the outer profile web is designed in cross-section with a thin section in which the wall thickness is defined and reduced compared to the adjacent wall thickness, wherein the connecting profile is plastically deformable along the thin section and an inclination angle of the inner profile web and / or the outer profile web relative to the main profile web is adjustable.

Description

[0001] The invention relates to a connecting profile for forming a connection area between a wall of a building and the underside of a window sill, which has an angle of inclination relative to the horizontal, wherein the connecting profile is formed with a plastic material and has an approximately T-shaped cross-section, comprising a main profile web which is oriented approximately vertically in the installation position and is designed for connecting to wall plaster and / or wall insulation and / or a wall seal, and an inner profile web and an outer profile web which are each oriented transversely to the main profile web and are designed for bearing against the underside of the window sill, wherein the inner profile web is directed towards the interior of the wall and the outer profile web is directed outwards away from the wall, according to the preamble of claim 1.

[0002] The invention also relates to a method for installing a connecting profile between a wall and the underside of a window sill on a building to form a connection area, wherein the window sill has an angle of inclination relative to the horizontal, according to the preamble of claim 10.

[0003] Connection profiles, hereinafter also referred to as plastering profiles, of the type mentioned above are known in various designs and can be used, in particular, as a second sealing layer to protect against moisture and water in the lower area of ​​a wall opening, for example below window sills. However, other drip edges on buildings or walls, such as balconies or wall copings, are also suitable for use.

[0004] Window sills typically include a wedge-shaped substructure, usually made of insulating and / or sealing material, with an angled design to drain moisture. Traditionally, these connecting profiles, preferably made of plastic, are plastered over at an outer corner of the substructure, particularly along two adjacent layers of thermal insulation or sealing, to protect the edges. This is intended to allow condensation and moisture to drain away to the outside, even below a primary sealing layer such as a window sill, without damaging the plasterwork below the wall opening.

[0005] Plastering profiles with a T-shaped cross-section, consisting of several dimensionally stable legs positioned at right angles to each other and featuring a mesh surface for fastening during plastering, are generally known. For example, DE 298 20 198 U1 discloses a plastering profile designed for supporting and defining insulation boards at a plinth edge. In this profile, a T-shaped plastering edge profile is inserted into a similarly T-shaped base profile, which is firmly attached to the wall. A drip edge is formed on the U-shaped lower part of the plastering edge profile. By inserting the plastering edge profile, the system can be flexibly adjusted to accommodate various rectangular insulation board thicknesses. However, its design is relatively static with regard to other adjustments.

[0006] German patent DE 10 2009 036 925 A1 discloses a fabric profile strip comprising a plastic extruded profile strip forming an angle of approximately 90°. The profile strip has a profile tip and two profile legs. Fabric strips project longitudinally on both sides below the profile tip. The fabric profile strip is formed using a co-extrusion process in which the material forming the profile strip is applied to the fabric strip from both above and below. The resulting rigid profile strip can, in particular, also have a profile tip with a drip edge that diverts water from a building wall, for example, in the area of ​​a balcony or window.

[0007] The invention is based on the Aufgabe The aim is to specify a connection profile for forming a connection area and a method for doing so, with which the installation of the connection profile is particularly efficient and easy, especially on the underside of a window sill.

[0008] The problem is solved according to the invention by a connection profile with the features of claim 1 and a method with the features of claim 10. Preferred embodiments of the invention are specified in the dependent claims.

[0009] The connection profile according to the invention is characterized in that the inner profile web and / or outer profile web is formed in cross-section with a thin section in which the wall thickness is defined and reduced compared to the adjacent wall thickness, wherein the connection profile is plastically deformable along the thin section and an inclination angle of the inner profile web and / or the outer profile web relative to the main profile web is adjustable.

[0010] A fundamental aspect of the invention is that the angle of an inner profile web to the horizontal of a T-shaped plastering profile can be manually adjusted by means of a bending motion when attaching it to an outer corner of a window sill substructure. This is achieved by forming a bending point with reduced material thickness in the cross-section of the inner profile web. In this way, different angles of inclination and / or any deviations of the window sill substructure from the horizontal can be accommodated. At the same time, high stability of the inner profile web can be ensured. In other words, the angle of the inner profile web to an approximately vertical main profile web of the plastering profile, which can encompass an outer edge of the window sill substructure, can also be precisely and permanently adjusted.

[0011] By creating a thin section with reduced material thickness, springback of the inner profile web during installation can be avoided, thus simplifying the process. Compared to existing plastering profiles, it is also not absolutely necessary to use a particularly soft plastic compound and / or a co-extrusion process to ensure adaptability.

[0012] Another aspect of the invention involves forming a bend in the outer profile web of a T-shaped plastering profile that extends from the wall to a drip edge. The material thickness in the area of ​​the bend in the outer profile web is reduced. This allows the outer profile web with the drip edge to be adjusted during installation without springing back, thus facilitating plastering. Subsequently, the outer profile web with the bend can be returned to an inclined position by means of an adjustment movement, thereby facilitating the dripping of liquids from the drip edge. The bend in the outer profile web thus allows the angle of the outer profile web to be permanently and precisely adjustable, largely preventing springback. This also makes it possible to completely detach the outer part of the outer profile web with the drip edge at the thinned bend in the bend.

[0013] According to one embodiment of the invention, it is particularly advantageous that the main profile web is formed with a first perforation and / or a first connecting fabric is adapted to it. It is especially advantageous if the connecting fabric is made of a fiberglass fabric. Likewise, the connecting fabric and the perforation can be arranged to overlap at least partially, with the connecting fabric being provided both on the inside of the perforation facing the wall and on the outside of the perforation facing away from the wall. In this way, the connecting profile can be joined to the wall particularly efficiently. The main profile web with the first perforation and / or the first connecting fabric can then be plastered directly onto the wall or the insulation layer.

[0014] According to a further development of the invention, it is advantageous for the outer profile web to have a downwardly directed short leg on its underside. The short leg can preferably be formed as part of a U-shaped profile, wherein the U-shaped profile is open downwards and can run parallel to the main profile web in the longitudinal direction. It is particularly advantageous if the short leg is formed in a lateral region of the thin section between the thin section and the main profile web. The formation of the short leg allows for improved plastering of the connecting profile. In particular, this also ensures a particularly clean plaster finish on the outside of the connecting profile, with the U-shaped profile being designed to receive plaster. The plaster edge thus formed also provides additional protection against moisture.

[0015] A particularly preferred embodiment is achieved by providing the outer profile web with a tear-off tab, to which a double-sided adhesive tape for attaching a protective film is preferably attached. The adhesive tape can be located, in particular, on the underside of the tear-off tab. The tear-off tab can preferably be located in an outer area of ​​the connecting profile, away from the wall. It is advantageous if the double-sided adhesive tape runs parallel to the wall in the longitudinal direction. Alternatively, a coated adhesive surface can be provided instead of the adhesive tape. This allows a protective film to be attached to the connecting profile in a particularly simple manner during plastering, thus protecting the underside of the windowsill from dirt during the plastering process. After plastering, the protective film can be easily removed.

[0016] A preferred embodiment consists of connecting the tear-off tab to the outer profile web via a thinned separation rib. The thinned separation rib can be designed with a reduced material thickness. It is advantageous if the separation rib runs longitudinally along the outer profile web, i.e., parallel to the main profile web and the wall. This allows the tear-off tab to be released at the separation rib, which acts as a predetermined breaking point, after the plastering work is completed. This makes it particularly easy to remove any protective film attached to the adhesive tape, thus accelerating the overall installation of the connection profile according to the invention.

[0017] A further particularly advantageous embodiment of the invention consists in the inner profile web being designed as a continuous surface without perforations. A sealing film can be applied, in particular glued, to the flat upper surface of the inner profile web to form a sealing plane for draining liquid. The flat surface of the inner profile web allows for particularly easy and secure adhesion of the film to the inner profile web.

[0018] One embodiment of the invention consists in the inner profile web being designed with a second perforation and / or a second connecting fabric being attached to it. The second perforation and / or the second connecting fabric allows the inner profile web to be particularly well plastered to the wall or other substrate. It is advantageous if the second perforation and the second connecting fabric overlap at least partially. The second connecting fabric can be arranged, in particular, on the underside of the second perforation and be designed as a fiberglass fabric for embedding sealing slurries to seal the underside of the windowsill. In this way, the inner profile web can be particularly well connected to the substructure of the windowsill, such as an insulating wedge, and simultaneously form a second sealing layer under the windowsill.

[0019] According to a further preferred embodiment, the thin section on the inner and / or outer profile web is located close to the main profile web. This improves the adjustability with respect to the tilt angle of the window sill substructure. In particular, the connecting profile can thus be installed especially flush and precisely at an edge between the window sill substructure and the side wall or insulation. It is particularly advantageous if the thin section on the outer profile web is designed to allow for the detachment of an outer part or the entire outer profile web. This allows for the formation of a stable and clean plaster edge even without a protruding drip edge.

[0020] In general, the angle of inclination of the inner profile web can be arbitrarily designed. However, according to one embodiment of the invention, it is particularly advantageous for the angle of inclination to be between 3° and 15°, preferably between 5° and 10°, relative to the horizontal. This allows liquid and moisture to be drained particularly efficiently from the underside of the windowsill to the outside of the wall. It is advantageous if the angle of inclination of the inner profile web and that of the outer profile web relative to the main profile web are set such that the inner profile web and the outer profile web together form a continuous plane. Alternatively, the angle of inclination of the inner profile web can be different from the angle of inclination of the outer profile web. It can be particularly advantageous for the outer profile web to slope more steeply than the inner profile web, thereby further improving the drainage and dripping properties.

[0021] A further particularly advantageous embodiment of the invention consists in at least a portion of the surface areas of the connection profile being formed with micro-ribbing. It is especially advantageous if the micro-ribbing consists of very fine, closely spaced grooves to increase the surface area. This allows for stronger adhesion of materials such as adhesives, tapes, sealing slurries, or plasters to the surface. Micro-ribbing can, in principle, be provided at various locations on the connection profile. However, it is particularly preferred that micro-ribbing is formed on those areas of the connection profile intended for bonding with a material or environment.This may include, in particular, the rear side of the main profile web facing the wall, the outer side of the main profile web facing away from the wall, the top of the inner profile web, the underside of the inner profile web, an area of ​​the outer profile web intended for the application of the double-sided adhesive tape, a downward-opening U-shaped area between the downward-facing short legs and / or an area on the outer side of the short leg facing away from the wall below the outer profile web.

[0022] With regard to the method, the invention is characterized in that, before or during the installation of the connecting profile, the inner profile web and / or outer profile web is manually plastically deformed along the thin section, thus setting an inclination angle of the inner profile web and / or the outer profile web relative to the main profile web, preferably adapted to the inclination angle of the window sill.

[0023] The method according to the invention allows, in particular, the advantages described above to be achieved.

[0024] An advantageous embodiment of the method according to the invention consists in setting the angle of inclination between 3° and 15°, preferably between 5° and 10°, relative to the horizontal. This allows liquid to be channeled particularly efficiently along the inner profile web to the outside of the wall. Alternatively, the angle of inclination can also be set to 0° relative to the horizontal. The angle of inclination of the inner profile web and the angle of inclination of the outer profile web relative to the horizontal can, in principle, be set to the same angle or to different angles, so that the inner and outer profile webs together either form a flat plane or are angled relative to each other. In this way, the method for installing a connecting profile is particularly versatile.

[0025] The invention is explained in more detail below with reference to exemplary embodiments, which are shown schematically in the drawings. The drawings show: Fig. 1 a perspective view of a connection profile according to the invention; Fig. 2 a perspective view of another connection profile according to the invention; Fig. 3 a schematic cross-sectional view of a connection profile according to the invention in an installation situation; Fig. 4 a schematic cross-sectional view of another connection profile according to the invention; and Fig. 5 a top view of an inner profile web according to the invention.

[0026] Fig. 1 Figure 1 shows a first embodiment of a connection profile 10 according to the invention. The connection profile 10 has a T-shaped profile with a main profile web 20, an inner profile web 30, and an outer profile web 40. A first perforation 26 is formed on the main profile web 20, on which a first connection fabric 28 is provided. As shown in Figure 20, the ... first perforation 26 on the main profile web 20, and a first connection fabric 28 is provided on the inner profile web 30. Fig. 1 As shown, the outer profile web 40 can in particular have a short leg 42 which runs in the longitudinal direction on the underside of the outer profile web 40 parallel to the main profile web 20, wherein the short leg 42 can be U-shaped for receiving wall plaster 22 and the like for fixing the main profile web 20 to a wall.

[0027] In the area of ​​an outer edge of the outer profile web 40, a double-sided adhesive tape 46 can be applied, particularly to an underside of the outer profile web 40, for attaching a Fig. 1 A protective film (not shown) may be provided. Furthermore, a tear-off tab 44 may be provided on the outer profile web 40 for removing the protective film attached to the double-sided adhesive tape 46 after completion of the plastering work. In other words, the part of the outer profile web 40 with the double-sided adhesive tape 46 can preferably be torn off at a separation groove 48.

[0028] As in Fig. 1 As shown, the outer profile web 40 can be aligned at a thin section on the outer profile web 50b at an angle sloping towards the outside, wherein the angle at the thin section on the outer profile web 50b of the outer profile web 40 can be arbitrarily adjustable. The thin section on the outer profile web 40 can, in particular, run longitudinally parallel to a side of the short leg 42 facing away from the wall on the outer profile web 40 and have a reduced material thickness. The connecting profile 10, as well as the thin section on the outer profile web 50b and / or the thin section on the inner profile web 50a, can preferably be extruded from a plastic.

[0029] On the opposite side of the outer profile web 40, the inner profile web 30 is formed, which can extend from the main profile web 20 to an inner wall surface and can be designed as a second sealing plane. For this purpose, the inner profile web 30 can preferably be designed without perforations. To adjust the inclination angle of the inner profile web 30 relative to the horizontal, a thin section can preferably be formed on the inner profile web 50a. The thin section can be provided, in particular, at a connection area to the main profile web 20 with a reduced material thickness and run parallel to the main profile web 20 in the longitudinal direction.

[0030] According to the in Fig. 1 In the illustrated embodiment of a connection profile according to the invention, in addition to the double-sided adhesive tape 46 arranged on the outer profile web 40, an adhesive tape or an adhesive surface for attaching a sealing film can also be provided on the upper side of the unperforated inner profile web 30. The adhesive tape on the upper side of the inner profile web 30 can preferably run parallel to the main profile web 20.

[0031] In Fig. 2 A further embodiment of a connection profile 10 according to the invention is shown, comprising a main profile web 20, an outer profile web 40, and an inner profile web 30. According to this embodiment, the inner profile web 30 has a second perforation 36 with a second connecting fabric 38, wherein the second connecting fabric 38 is arranged below the second perforation 36 for the incorporation of sealing slurries. In this way, an additional sealing layer can also be formed with the embodiment shown here.

[0032] On the main profile bridge 20 of the in Fig. 2 In the illustrated variant, a first perforation 26 can preferably be formed with a first connecting fabric 28. The first connecting fabric 28 can, in particular, be formed below the first perforation 26 and thus on the side of the first perforation 26 facing the wall. As in Fig. 1 Preferably, a thin section can be formed on the inner profile web 50a and a thin section on the outer profile web 50b with reduced material thickness. The material thickness can, in particular, be ≤ 75% of the material thickness of the inner profile web 30 and / or the outer profile web 40.

[0033] In Fig. 3 Figure 1 shows a cross-section of a connection profile 10 according to the invention on a wall insulation 24 and an inclined insulation wedge 32. As shown in Fig. 3 As can be seen, an inner profile web 30 can preferably be arranged on an upper side of the inclined insulation wedge 32 and a main profile web 20 on an outer side of the wall insulation 24. The illustrated T-shaped connection profile 10 can, in particular, have a drip edge 70 on an outer profile web 40 in order to protect the wall plaster 22 on the main profile web 20 as much as possible from moisture and liquid. The main profile web 20 can preferably be completely or partially covered by the wall plaster 22 for the installation of the connection profile 10. In addition, a short leg 42 can be arranged below the outer profile web 40 to receive the wall plaster 22. The short leg 42 can, in particular, form a plaster edge profile on the underside of the outer profile web 40. As shown in Fig. 3 As can be seen, the transition between the wall insulation 24 and the insulation wedge 32 is thus protected from the ingress of liquid by the main profile web 20.

[0034] Fig. 4 Figure 10 also shows a cross-section of an embodiment of a connection profile 10 according to the invention, comprising a main profile web 20, an inner profile web 30, and an outer profile web 40. The numerical values ​​shown in the figure are given in millimeters. The outer profile web 40 may, in particular, have a double-sided adhesive tape 46 on a lower side and a separation groove 48 in a central area for detaching an outer part of the outer profile web 40 as required. Preferably, the inner profile web 30 may include a thin section on the inner profile web 50a, and the outer profile web 40 may include a thin section on the outer profile web 50b.

[0035] As in Fig. 4 As can be seen, both the inner profile web 30 and the outer profile web 40 are arranged along the respective thin sections at an angle sloping outwards from the wall 21. The angle of the inner profile web 30 relative to the horizontal can, in particular, differ from the angle of the outer profile web 40 relative to the horizontal. Preferably, the outer profile web 40 can be arranged at a steeper angle than the inner profile web 30.

[0036] Preferably, all lines shown as particularly thick can be in Fig. 4 The profile 40 shall be provided with a micro-ribbed texture 60, in particular an outer underside of the outer profile web 40, a U-shaped recess with the short leg 42, the side of the short leg 42 facing away from the wall 21, the top and bottom surfaces of the inner profile web 30, the side of the main profile web 20 facing the wall 21 and the side of the main profile web 20 facing away from the wall 21. The main profile web 20 and the underside of the inner profile web 30 may preferably be arranged directly on the wall 21, for example a masonry wall.

[0037] Fig. 5Figure 1 shows an exemplary embodiment of a second perforation 36 of an inner profile web 30 with a thin section 50a. The numerical values ​​shown here are given in millimeters. As can be seen, the openings of the second perforation 36 can, in particular, have a diameter of 6 mm. The openings can preferably be arranged in a straight line at a distance of 10 mm along the longitudinal direction of the thin section on the inner profile web 50a, and offset at a distance of 8 mm in a transverse direction perpendicular to the longitudinal direction.

Claims

1. Connection profile (10) for forming a connection area between a wall of a building and the underside of a window sill, which has an angle of inclination to the horizontal, wherein the connection profile (10) is made of a plastic material and has an approximately T-shaped cross-section, comprising: - a main profile web (20), which in the installed position is oriented approximately vertically and is designed for connecting to a wall plaster (22) and / or a wall insulation (24) and / or a wall seal, and - an inner profile web (30) and an outer profile web (40), which are each directed transversely to the main profile web (20) and are designed for contact with the underside of the window sill, wherein the inner profile web (30) faces inwards towards the interior of the wall and the outer profile web (40) faces outwards away from the wall. characterized by thatthe inner profile web (30) and / or the outer profile web (40) is formed in cross-section with a thin section (50) in which the wall thickness is defined and reduced compared to the adjacent wall thickness, wherein the connecting profile (10) is plastically deformable along the thin section (50) and an inclination angle of the inner profile web (30) and / or the outer profile web (40) is adjustable relative to the main profile web (20).

2. Connection profile according to claim 1, characterized by that the main profile web (20) is formed with a first perforation (26) and / or a first connecting fabric (28) is attached to it.

3. Connection profile according to claim 1 or 2, characterized by that the outer profile web (40) has a downwardly directed short leg (42) on its underside.

4. Connection profile according to one of claims 1 to 3, characterized by thatthe outer profile web (40) is formed with a tear-off tab (44) to which a double-sided adhesive tape (46) is preferably attached for attaching a protective film.

5. Connection profile according to claim 4, characterized by that the tear-off tab (44) is connected to the outer profile web (40) via a thinned separating bead (48).

6. Connection profile according to one of claims 1 to 5, characterized by that the inner profile web (30) is formed with a second perforation (36) and / or a second connecting fabric (38) is attached to it.

7. Connection profile according to one of claims 1 to 6, characterized by that the thin section (50) is formed on the inner profile web (30) and / or the outer profile web (40) near the main profile web (20).

8. Connection profile according to one of claims 1 to 7, characterized by thatthe angle of inclination is between 3° and 15°, preferably between 5° and 10°, relative to the horizontal.

9. Connection profile according to one of claims 1 to 8, characterized by that at least part of the surface areas of the connection profile (10) is formed with a micro-ribbing (60).

10. Method for installing a connection profile (10) according to one of claims 1 to 9 between a wall and an underside of a window sill on a building to form a connection area, wherein the window sill has an angle of inclination relative to the horizontal, characterized by thatBefore or during the installation of the connecting profile (10), the inner profile web (30) and / or the outer profile web (40) are manually plastically deformed along the thin section (50) and thus an inclination angle of the inner profile web (30) and / or the outer profile web (40) is set relative to the main profile web (20), preferably adapted to the inclination angle of the window sill.

11. Method according to claim 10, characterized by that the angle of inclination is set between 3° and 15°, preferably between 5° and 10°, relative to the horizontal.

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