EP3770371B1 - Metal seal rail and building termination assembly - Google Patents

Description

The present invention relates to a metal sealing rail with a clamping profile and a building closure arrangement with such a metal sealing rail.

In buildings, it is often desirable to close areas that are usually covered but otherwise open during the autumn and winter months, so that they can also be used in adverse outdoor conditions. The closure should only be temporary or reversible so that the corresponding areas can be used freely again during the spring and summer months. Glass walls or other transparent materials are often provided for the closure in order to allow a feeling of use of an open space, similar to a so-called winter garden, despite the isolation from adverse outside conditions.

As a rule, a large number of individual panes are arranged in an overlapping manner for this purpose. For a connection, the panes are usually guided in rails and sometimes also stored in such a way that the panes can move against one another. Nevertheless, the panes should be sealed against each other in order to be able to provide protection against the effects of the weather.

Seals are sometimes typically attached by adhesives such as silicone. However, this means, among other things, that the seal is firmly connected to the pane and can only be detached from it again with difficulty.

Furthermore, residues remain on the pane after detachment. A residue-free detachment of the seal from the pane would, however, be desirable, for example in order to be able to use the seal again and to improve the appearance of the panes.

The DE 296 14 322 U1 describes an end profile with a U-shaped section for placing on the outer edges of glass panes.

The pamphlet EP 0 622 516 B1 describes a covering element consisting of a generally U-shaped interior space defined by two lateral legs and a transverse post, the first lateral leg having a coupling or snap-in shoulder and being elastically deformable to a first degree of deformation.

The pamphlet BE 1 012 094 A7 describes a sliding door combination that includes a panel having opposite front and back faces and at least one edge for connecting the faces together, the edge and a portion of the front and back faces transverse to the panel being at least partially defined by a long and thin substantially U-shaped shaped profile section are held. Against this background, the object of the present invention is to provide a seal for panes, in particular glass panes, which can easily be assembled and disassembled several times without leaving any residue, without damaging the pane.

According to the invention, this object is achieved by a sealing rail with the features of patent claim 1 and by a building closure arrangement with the features of patent claim 9.

Accordingly, a metal sealing bar is provided. The metal sealing rail comprises a first profile wall, a second profile wall connected to the first profile wall and a third profile wall connected to the second profile wall. The first profile wall, the second profile wall and the third profile wall form an essentially U-shaped clamping profile with exactly three profile walls and one opening. The first, second and third profile wall are firmly connected to one another and the three inner surfaces of the profile walls are arranged circumferentially by at least 270°. The first profile wall and the second profile wall each have a straight inner surface and the third profile wall has a convexly curved inner surface, so that an edge of a pane inserted into the opening is clamped in the clamping profile. The metal sealing rail also includes a piping brush seal accommodated in a recess in the first profile wall that faces away from the clamping profile.

A building termination arrangement is also provided. The building closure arrangement comprises a first building closure pane, a second building closure pane and a metal sealing rail according to the invention. The first and second building cover panes are arranged in an overlapping manner with a gap in relation to one another. The metal sealing rail is applied to an edge of the first or second building cover pane in the area of the overlap in a non-positive manner and without adhesive in order to seal the gap.

The idea on which the present invention is based is to fix the pane to be sealed by means of a simple clamping without adhesive and reversibly. The convexly curved inner surface of the third profile wall ensures that the inner surface of the third profile wall rests firmly and with a predetermined contact surface on the pane even with slight deviations in the expected thickness of the pane to be sealed. The pane to be sealed is accordingly clamped in a tolerance-compensating manner with a predetermined pressure, in particular independently of the local pane thickness or local tolerance deviation, in particular without forming a gap, and thus fastened. Due to the straight inner surface of the first and second profile wall, a position relative to the pane is fixed and the sealing pane cannot twist or slip.

The convex curvature of the inner surface of the third profile wall runs inwards, ie towards a profile inner side. The convex curvature achieves a tangential contact of the pane by the third profile wall, which always provides a contact surface of the same width regardless of a tolerance deviation of the pane thickness. A predetermined surface pressure is thus ensured by the clamping force, which on the one hand generates the desired frictional adhesion and on the other hand prevents the pane from being scratched.

An essentially U-shaped clamping profile is to be understood as meaning a profile which has three profile walls and an opening. The outer surfaces of the profile walls can have any shape or curvature. The three inner surfaces of the profile walls are arranged circumferentially by at least 270°, so that an edge of a pane inserted into the opening is clamped in the profile.

The first, second and third profile wall are firmly connected to each other. It is preferably a one-piece profile, in particular an extruded profile.

The formation of the sealing rail as a metal sealing rail provides a comparatively high modulus of elasticity of the material, so that a clamping force sufficient for fastening is achieved. Furthermore, the metallic training allows a powder coating of the sealing rail, so that on the one hand the friction properties and on the other hand different colors of the profile surfaces can be adjusted.

The first and second profile walls define a predetermined relative position of the sealing rail to the pane. In addition, the predetermined clamping force makes it possible to dispense with the use of an adhesive, which is why the sealing rail according to the invention can easily be installed and removed again several times without leaving any residue.

For assembly, the metal sealing rail is simply pushed onto the edge of a pane, preferably with a slight twisting movement around the third profile wall. Fastening takes place automatically as a result of the static friction between the inner surfaces of the first and third profile walls and the pane, which acts due to the clamping force.

Advantageous refinements and developments result from the further dependent claims and from the description with reference to the figures.

According to a development, the curved inner surface of the third profile wall can have a radius of curvature of 50 mm to 80 mm, in particular 60 mm to 70 mm, particularly preferably 65 to 66 mm. Radii of curvature in this area have proven to be particularly suitable for ensuring that the curved inner surface of the third profile wall lies flat on panes of different thicknesses.

According to a development, an angle between the curved inner surface of the third profile wall and the straight inner surface of the second profile wall is at the junction between the third profile wall and the second profile wall less than 90°. In particular, the angle is between 80° and 89°. In this way, the third profile wall is elastically deflected by inserting the pane into the clamping profile. With the spring effect provided in this way, an increased clamping effect of the clamping profile is advantageously achieved.

According to a further development, a notch can be formed at a transition between the first profile wall and the second profile wall, ie at the connection of the first and second profile walls. Alternatively or additionally, a notch can be formed at a transition between the second profile wall and the third profile wall, ie at the connection of the second to the third profile wall. Notches of this type can, on the one hand, make it easier for the pane to rest against the profile walls, which leads to an advantageously improved clamping effect of the clamping profile. On the other hand, the notches reduce stress peaks in the corners of the clamping profile and thus contribute to the higher strength for a higher possible number of load changes occurring during assembly and disassembly.

According to a development, the recess of the first profile wall is T-shaped. In this way, a brush seal can be provided in an advantageously simple manner, with which a seal can be implemented between a pane clamped by the sealing rail and an adjacent overlapping pane.

According to a development, the piping brush seal can be accommodated in the recess with a friction fit. This allows for an advantageously simple manufacture of the metal sealing rail with welt brush seal as well as easy replacement of the welt brush seal should it become damaged or worn out.

According to a development, the sealing rail can be made of aluminum. As a result, an advantageously cost-effective production using the extrusion process can be made possible. Furthermore, with a comparatively high modulus of elasticity, a comparatively low weight, high corrosion resistance, high robustness and the possibility of powder coating the sealing rail are achieved.

According to a development, the sealing rail can have a powder coating. With such a powder coating, the surface properties of the sealing rail, such as weather resistance, color or hardness, can be advantageously influenced in a simple manner.

According to a development of the building closure arrangement, the first and/or the second building closure pane is made of glass. Glass is a particularly popular but also dirt-sensitive material for building closure assemblies. The use of a metal sealing rail according to the invention for glass panes is therefore particularly advantageous, since this allows residue-free removal and prevents scratching.

Fig. 1

eine schematische Profilansicht eines Ausführungsbeispiels einer erfindungsgemäßen Metallabdichtschiene; und

Fig. 2

eine schematische Ansicht eines Ausführungsbeispiels einer erfindungsgemäßen Gebäudeabschlussanordnung.

The present invention is explained in more detail below with reference to the exemplary embodiments given in the schematic figures. They show:

1

a schematic profile view of an embodiment of a metal sealing rail according to the invention; and

2

a schematic view of an embodiment of a building termination arrangement according to the invention.

The accompanying figures are intended to provide a further understanding of embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the foregoing advantages will become apparent by reference to the drawings. The elements of the drawings are not necessarily shown to scale with respect to one another.

In the figures of the drawing, elements, features and components that are the same, have the same function and have the same effect--unless stated otherwise--are each provided with the same reference symbols.

1 shows a schematic profile view of an embodiment of a metal sealing rail 1 . The metal sealing rail 1 has a first profile wall 2 , a second profile wall 3 and a third profile wall 4 . The second profile wall 3 is connected at a first end to one end of the first profile wall 2 and at a second end to one end of the third profile wall 4 . The first profile wall 2, the second profile wall 3 and the third profile wall 4 together form an essentially U-shaped clamping profile 5. The first profile wall 2 has a straight inner surface 6. The second profile wall 3 has a straight inner surface 7 on. The third profile wall 4 has an inner surface 8 curved convexly inward. The metal sealing rail 1 has indentations 9 in each case at the connections between the first profile wall 2 and the second profile wall 3 and between the second profile wall 3 and the third profile wall 4 . The first profile wall 2 has a substantially T-shaped recess 10 facing away from the clamping profile 5 .

A radius of curvature of the curved inner surface 8 of the third profile wall 4 can be seen in the scale representation of 1 don't quantify. A radius of curvature in the range from 50 mm to 80 mm, preferably from 60 mm to 70 mm, particularly preferably from 65 mm to 66 mm, has proven to be particularly suitable for the usual pane thicknesses. However, the preferred radius of curvature of the curved inner surface 8 of the third profile wall 4 depends on the absolute dimensions of the metal sealing rail 1 and the pane to be clamped as a whole. In this respect, the metal sealing rail according to the invention is not limited to a specific radius of curvature.

An angle between the inner surface 6 of the first profile wall 2 and the inner surface 7 of the second profile wall 3 is approximately 90°. An angle between the inner surface 7 of the second profile wall 3 and the curved inner surface 8 of the third profile wall 4 at their connection point is less than 90°, in particular 80° to 89°, in this case approximately 85°. These angles represent particularly preferred versions of the orientation of the profile walls to one another. However, the orientations can also deviate from this as long as the clamping effect of the essentially U-shaped clamping profile is retained. For example, angles of less than 80° are also conceivable for a particularly elastic metal material.

The notches 9 are formed with a substantially circular cross section. However, the notches 9 can also have any other desired cross-sectional shape. In addition, the in 1 Notches 9 of the metal sealing rail 1 shown are not a mandatory feature. The connecting areas between the profile walls can also be continuously curved in a concave manner.

The essentially T-shaped recess 10 of the first profile wall 2 is not absolutely necessary for a metal sealing rail 1 according to the invention, but allows the friction-locking accommodation of a piping brush seal, with which an intermediate space between a disc accommodated in the U-shaped clamping profile 5 and an adjacent pane can be sealed. This mode of operation is explained below with reference to the 2 explained in more detail.

2 shows a schematic view of an embodiment of a building termination arrangement 12. The metal sealing rail 1 essentially has the features of FIG 1 metal sealing rail 1 shown and additionally a piping brush seal 11 accommodated in the recess 10 . A first building cover plate 13 is inserted into the U-shaped clamping profile 5 . The bristles of the welt brush seal 11 are in contact with a second building cover disk 14 .

The first building lens 13 is clamped by the first profile wall 2, the second profile wall 3 and the third profile wall 4. Due to the clamping effect and the straight design of the first and second inner surfaces, which are in particular perpendicular to one another, the metal sealing rail 1 and thus also the piping brush seal 11 cannot slip or be twisted.

The curved inner surface 8 of the third profile wall 4 lies flat and with a predetermined bearing surface on the first building cover pane 13 . Due to the curvature of the curved inner surface 8 of the third profile wall 4, such a flat contact with the first building cover lens 13 is ensured even with other tolerance deviations in the thickness of the first building cover lens 13 with the predetermined contact surface. It is also conceivable to design the metal sealing rail for predetermined different thickness ranges of panes. A resilient deflection of the third profile wall 4 has the effect of compensating for tolerances or thickness. Nevertheless, a predetermined surface pressure and thus a desired clamping force is achieved. An adhesive for attaching the metal sealing rail 1 to the first building cover pane 13 can therefore be completely dispensed with.

The bristles of the piping brush seal 11 lie firmly against the second building cover pane 14 and seal the space between the first building cover pane 13 and the second building cover pane 14, for example against wind, moisture and insects. The welt brush seal 11 cannot slip or twist relative to the first building cover lens 13 so that the seal between the first building cover lens 13 and the second building cover lens 14 is ensured.

The in the figures 1 and 2 The sealing rail shown can be made from a variety of metallic materials, each with preferred material properties. To achieve the clamping effect necessary for the use according to the invention and yet easy handling with high corrosion resistance and to achieve low costs, the sealing rail is usually made of a light metal. For example, manufacturing from aluminum or an aluminum alloy is advantageous. However, other metals are also conceivable as materials.

In addition, a sealing rail according to the invention can also be provided with a powder coating. Such a powder coating allows the properties of the surface of the sealing rail to be defined in a simple manner, independently of the actual manufacturing material of the sealing rail. Any color can be chosen for the sealing rail, the weather resistance of the sealing rail can be increased, or by coating it with a soft powder coating material, scratching of the pane to be locked can be avoided.

Reference List

1

metal sealing rail

2

first profile wall

3

second profile wall

4

third profile wall

5

clamping profile

6

straight inner surface

7

straight inner surface

8th

curved inner surface

9

notch

10

recess

11

piping brush seal

12

building termination arrangement

13

first building cover pane

14

second building cover pane

Claims (10)

1. Metal sealing rail (1) for a building closure panel, comprising

   a first profile wall (2);

   a second profile wall (3) connected to the first profile wall (2); and

   a third profile wall (4) connected to the second profile wall (3);

   characterised in that

   the first profile wall (2), the second profile wall (3) and the third profile wall (4) form a substantially U-shaped clamping profile (5) having exactly three profile walls and an opening, the first profile wall (2), the second profile wall (3) and the third profile wall (4) being rigidly interconnected and the three inner faces of the profile walls being arranged peripherally over at least 270°, in such a way that an edge, introduced into the opening, of a panel (13; 14) is clamped in the clamping profile (5), and the first profile wall (2) and the second profile wall (3) each having a straight inner face (6; 7) and the third profile wall (4) having a convexly curved inner face (8); and

   in that the metal sealing rod (1) has a Keder brush seal (11) received in a recess (10), facing away from the clamping profile (5), of the first profile wall (2).
2. Metal sealing rail (1) according to claim 1,
   wherein the curved inner face (8) of the third profile wall (4) has a radius of curvature of 50 mm to 80 mm, in particular of 60 mm to 70 mm.
3. Metal sealing rail (1) according to either claim 1 or claim 2,
   wherein an angle between the curved inner face (8) of the third profile wall (4) and the straight inner face (7) of the second profile wall (3) at the connection between the third profile wall (4) and the second profile wall (3) is less than 90°, in particular between 80° and 89°.
4. Metal sealing rail (1) according to any of the preceding claims,
   wherein a notch (9) is formed at a transition between the first profile wall (2) and the second profile wall (3) and/or at a transition between the second profile wall (3) and the third profile wall (4).
5. Metal sealing rail (1) according to any of the preceding claims, wherein the recess (10) is formed T-shaped.
6. Metal sealing rail (1) according to any of the preceding claims, wherein the Keder brush seal (11) is received in a frictional fit in the recess (10).
7. Metal sealing rail (1) according to any of the preceding claims, wherein the metal sealing rail (1) is made of aluminium.
8. Metal sealing rail (1) according to any of the preceding claims, wherein the metal sealing rail (1) has a powder coating.
9. Building closure arrangement (12), comprising

   a first building closure panel (13),

   a second building closure panel (14), and

   a metal sealing rail (1) according to any of the preceding claims,

   wherein the first and second building closure panels (13, 14) are arranged overlapping with a gap in between, and

   wherein the metal sealing rail (1) is attached to an edge of the first or second building closure panel (13, 14) in the region of the overlap, in a non-positive fit and without adhesive, so as to seal the gap.
10. Building closure arrangement (12) according to claim 9, wherein the first and/or the second building closure panel (13, 14) is made of glass.

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