Sealing element, component and method for mounting a component in a building body

Abstract

A sealing element (1) for sealing a building element (11) from a building structure (20) comprises a support strip (2) made of an insulating rigid foam, to which a compressed band (3) is fixed on at least one side. The compression is maintained by means of holding means (5) on or in the compressed band (3), wherein the holding means (5) are releasable in order to expand the compressed band (3). This allows the building element (11) to be effectively mounted in a building structure (20). Furthermore, a building element and a method for mounting a building element (11) are provided.

Description

[0001] The present invention relates to a sealing element for sealing a building element with respect to a building structure, comprising a carrier strip made of an insulating rigid foam, to which a compressed band is fixed on at least one side, in which the compression is maintained by means of holding means on or in the compressed band, a building element and a method for assembling a building element.

[0002] DE 20 2012 103 636 U1 shows a wall structure with a sealing tape that has a foam body made of a resilient flexible foam material. The sealing tape is inserted between a frame profile and a thermal insulation layer to improve sealing. Furthermore, a wall structure is shown in which additional sealing strips are mounted between the building structure and the frame. These sealing tapes and sealing strips make it possible to avoid the use of construction foam, which is difficult to position precisely and can easily stick. However, there is the problem that such resilient, expandable sealing tapes expand relatively quickly, meaning they only remain in the compressed state for a short time. Cooling the sealing tapes can slightly increase the time until expansion, but the problem remains that expanding joint sealing tapes must be processed quickly after being unwound from a roll.

[0003] US 2011 / 0143121 A1 discloses a compressed sealing tape in which a compressed foam strip is surrounded by a sheath. The sheath can be at least partially removed to expand the foam strip.

[0004] DE 10 2011 006 223 A1 discloses a plastering strip with an expansion strip which is held in a compressed position by a fixing means and can expand by releasing the fixing means.

[0005] It is therefore an object of the present invention to provide a sealing element, a component with a sealing element and a method for assembling a component, which enable improved handling of the sealing element for sealing components.

[0006] This object is achieved with a sealing element having the features of claim 1, a component having the features of claim 11 and a method for assembling a component having the features of claim 11.

[0007] The sealing element according to the invention for sealing a building element from a structure comprises a carrier strip made of insulating rigid foam, to which a compressed band is attached on at least one side, the compression being maintained by holding means on or in the compressed band. The holding means are releasable in order to expand the compressed band at a predetermined time. This allows the installer on the construction site to position the sealing element and arrange all other building elements, securing them in place using fastening means if necessary, until the holding means are then released to expand the compressed band. This facilitates installation because the installer can select the time when this expansion of the compressed band takes place. The sealing element enables controlled installation at the interface between the building element and the structure.The sealing element can adapt to different geometries and is suitable for any type of window or facade design. A further advantage of the sealing element according to the invention is the possibility of prefabrication in the workshop, which saves time on the construction site and thus reduces costs.

[0008] Preferably, the volume of the expanded band is at least twice the volume of the compressed band. The volume of the expanded band is measured when there is no counterpressure, i.e., when the expanded band is not clamped between components, but rather the expansion occurs freely and without spatial constraints. The volume of the expanded band can preferably be at least three times as large, preferably approximately four to five times as large, as the volume of the compressed band.

[0009] For precise positioning of the compressed band, the invention accommodates it in a groove in the support strip. In the compressed position, the band can be arranged essentially flush with a surface of the support strip, so that the compressed band is largely protected and handling is simplified.

[0010] The support strip is made of an insulating rigid foam, for example, a plastic foam such as EPS rigid foam or polyurethane rigid foam. This provides the support strip with high thermal insulation and can be used optimally for sealing the building structure.

[0011] The holding means preferably extend through the compressed band and optionally also through the support strip. The holding means can be formed by a plurality of tension elements, for example cables, bands, or thin webs, wherein the tension elements preferably each have a stop element on opposite sides, so that each tension element pre-tensions the compressed band toward the support strip through the stop elements. A first stop element can bear against the compression band or a film on the compression band, and a second stop is preferably supported on the opposite side of the support strip. The individual tension elements thus extend through the compressed band and the support strip and are subjected to tensile stress by the widened stop elements.

[0012] Preferably, a release means for releasing the holding means is provided, which is arranged on a side of the carrier strip opposite the side with the compressed band. A tear-off element, for example, can be provided as a release means, by means of which the respective stop elements on the holding means can be released. For example, the stop elements on the carrier strip can be released by the tear-off element, preferably at a predetermined breaking point, so that after the stop elements are released, the tension element can be moved with the opposite stop element relative to the carrier strip. Bands, films, fabrics, or other elements that ensure the tension elements are torn off can be used as the tear-off element.

[0013] In a further embodiment, at least one compressed band is provided on at least two sides of the support strip, so that the sealing element can be sealed on different sides. The two sides with the compressed band are preferably arranged at right angles to each other, although it is also optionally possible to provide at least one compressed band on opposite sides of a support strip.

[0014] The compressed tape preferably consists of a flexible foam, for example, an open-cell polyurethane flexible foam, which is optionally provided with additional additives or coated. Such compressed tapes can, for example, have a thickness between 4 mm and 40 mm, in particular 5 mm and 20 mm, and a width between 6 mm and 100 mm in the compressed state. The compressed tape can have a multi-layer structure; for example, one layer facing the inside can be airtight and one layer facing the outside can be permeable. This eliminates the need for subsequent sealing or the installation of a sealing film on site.

[0015] A building element preferably comprises at least one sealing element according to the invention, which is attached to at least one side, preferably to several sides. The building element is preferably designed as a window or door, with the sealing element arranged on an outer side of the window or door frame. The building element can then be easily mounted and sealed at a building opening.

[0016] In the method according to the invention for installing a building element in a building structure, a sealing element with a support strip made of insulating rigid foam and a compressed band is first attached to at least one side of the building element, wherein the compression of the band is maintained by holding means on or in the band. The building element is inserted into a building opening in the building structure, with the sealing element arranged between the building structure and the building element. The order of the assembly steps is irrelevant; thus, the sealing element can also be inserted into the building opening first and the building element can be positioned on the sealing element later. Preferably, the sealing element is first fixed to the building element, for example glued or clamped, and is then inserted into the building opening together with the building element.After inserting the structural element and the sealing element, the retaining means can be released to expand the compressed band, filling any gap between the structure and the structural element. This enables effective assembly of the structural element. For precise positioning, the compressed band is preferably accommodated in a groove in the support strip.

[0017] The component is preferably designed as a window or door, so that several sections of the sealing element can be attached circumferentially to the outer side of a frame. The retaining means are preferably removed by peeling off a solvent, for example, via a tear-off strip that removes a stop of the retaining means at a predetermined breaking point.

[0018] The invention will be explained in more detail below using several exemplary embodiments with reference to the accompanying drawings. They show: Figure 1 shows a sectional view through a sealing element according to the invention; Figure 2 shows a sectional view through the sealing element of the Figure 1 after releasing the retaining means; Figure 3 a sectional view through a sealing element next to a component; Figure 4 a view of the sealing element of the Figure 3 after releasing the retaining means; Figure 5 a sectional view through a modified sealing element next to a component; Figure 6 a sectional view through the sealing element of the Figure 5 with the retaining means released; Figure 7 a sectional view through a modified sealing element; Figure 8 a sectional view through the sealing element of the Figure 7after releasing the retaining means in an installation situation; Figure 9 shows a perspective view during the installation of sealing elements on a window; Figure 10 shows a perspective view of the sealing elements mounted on the window; Figure 11 shows a perspective view of the window with the sealing elements after releasing the retaining means; Figure 12 shows a perspective view during the installation of a window on a building opening; Figure 13 shows a perspective view after the installation of the sealing elements on the building opening, and Figure 14 shows a perspective view after the installation of the window on the building opening.

[0019] A strip-shaped sealing element 1 shown in cross-section comprises a carrier strip 2 made of a rigid foam, for example EPS rigid foam or another dimensionally stable material. On at least one side of the carrier strip 2, one or more grooves are formed, into which a compressed band 3 is inserted. In the illustrated embodiment, on the right side in Figure 1 two grooves, each with a compressed band 3, are inserted, and on the lower side, another groove with another compressed band 4 is inserted. In the compressed position, the compressed bands 3 and 4 are arranged substantially flush with an upper side of the support strip 2; at least the compressed bands 3 and 4 do not protrude from the respective upper side.

[0020] The compressed bands 3 and 4 consist of an expandable flexible foam that, when compressed, occupies less than half, preferably less than a third, of the volume of its uncompressed state. Such a flexible foam can be, for example, a polyurethane foam or another soft plastic foam.

[0021] Each compressed band 3 is held in the compressed position by several holding means 5. The holding means 5 are each designed as tension elements, which have a first stop element 6 on the side of the compressed band 3 and a portion of the tension element extends through the compressed band 3 and the support strip 2. A second stop element 7 is provided on the side opposite the compressed band 3. The stop elements 6 and 7 are designed as plates, webs, discs, or other bodies that bear against a surface of the compressed band 3 or the support strip 2 or a release means in order to maintain the compression of the band 3. The holding means 5 are subjected to tensile stress and ensure that the compressed band 3 cannot expand.Optionally, a film or other dimensionally stable strip can be provided on the outer side of the compressed band 3 so that the stop elements 6 arranged at regular intervals ensure compression over the entire length of the compressed band 3.

[0022] The compressed band 4 is also held in the compressed position by a holding means 5, which comprises stop elements 6 and 7 and a tension element, wherein the tension elements extend through the compressed band 4 and the support strip 2. The stop elements 6 and 7 are arranged on opposite sides of the sealing element 1.

[0023] In order to expand the compressed bands 3 and 4, a release means 8 is provided, which in the illustrated embodiment is arranged on the side opposite the respective compressed bands 3 or 4. The release means 8 can be designed as a tear-off strip, strip, or other element, wherein in the illustrated embodiment, the release means 8 is designed as a strip arranged between the stop elements 7 and a surface of the carrier strip 2. The release means 8 are arranged on two sides of the carrier strip 2 and converge in a corner area, wherein an actuating section 9 protrudes from the carrier strip 2. The user can now grasp the actuating section 9 and pull the two release means 8 apart, as shown in Figure 2 is shown.

[0024] By pulling or pivoting the release means 8, the stop elements 7 are removed over the entire length of the support strip 2, preferably at a predetermined breaking point, so that the tensile-loaded holding means 5 no longer compress the respective bands 3 and 4, so that the expansion of the compressed bands 3 and 4 can now take place. During the expansion, the stop elements 6 are moved together with the compressed bands 3 and 4 relative to the support strip 2. In Figure 2 It is shown that the now expanded bands 3 and 4 occupy a significantly larger volume than those in Figure 1 shown compressed bands 3 and 4. In this position, the expanded bands 3 and 4 can provide sealing for a building element.

[0025] In Figure 3 is the sealing element 1 of the Figure 1shown in an installed situation. The sealing element 1 is located on the outside of a window 10 or a door, wherein the structural element 11 is designed, for example, as a frame in which a sash 12 is pivotably held. The frame can be pre-fixed to the sealing element 1 or a structural member via fastening means 13, for example screws, in order to specify the position of the structural element 11. Optionally, the sealing element 1 can also be connected to a structural member via a schematically illustrated screw connection 14, although such a mechanical fixation does not yet provide a seal.

[0026] In Figure 4The position is shown when the holding means 5 have been released by the release means 8, so that the two compressed bands 3 have expanded and rest with one surface against the structural element 11. This can provide a reliable seal to the structural element 11, which also ensures improved soundproofing and good thermal insulation.

[0027] In Figure 5A modified embodiment of a sealing element is shown, in which only a single compressed band 3' is arranged on the right-hand side of the carrier strip 2, which is held in the compressed position by modified holding means 5'. A compressed band 4 is also shown on the underside, which is fixed in the compressed position by a holding means 5'. In this embodiment, the holding means 5' are formed by a fabric or a loop, which forms a stop element 6' on the side of the compressed band 3' and a further stop element 7' on the opposite side. As a result, the holding means 5' is guided in a loop-like manner and extends through the compressed band 3' and the carrier strip 2.

[0028] The modified holding means 5' can be released when the stop element 7' is separated, for example by a tear-off strip or by cutting open the stop element 7', as shown in Figure 6 By releasing the holding means 5', the compressed band 3' can now expand and adhere to the component 11, similar to Figure 4 has already been described.

[0029] In Figure 7 A modified embodiment of a carrier strip 2 is shown, in which only a single compressed band 3 is provided, which is held in the compressed position by a plurality of holding means 5. Each holding means 5 comprises a first stop element 6 on the side of the compressed band 3 and a second stop element 7 on the opposite side, which is provided adjacent to a release means on the carrier strip 2. Five holding means 5 are provided across the width of the compressed band 3.

[0030] In Figure 8 is an installation situation with the sealing element made of Figure 7shown after the release means 8 has been released by pulling on the actuating section 9, so that the stop elements 7 on the side opposite the compressed band 3 have been released. This allows the compressed band 3 to expand into a structural element 11, wherein the holding means 5 move relative to the support strip 2. The structural element 11 is designed as a frame for a window or door, which has various profiles in the form of grooves, steps or projections, wherein the elasticity of the compressed band 3 can compensate for such unevenness on the structural element 11. The expanded band 3 made of flexible foam lies against the structural element 11 without a gap, even if the latter is profiled in the direction of expansion. In the exemplary embodiment shown, the support strip 2 is fixed to a building body 16.

[0031] In the Figures 9 to 11The assembly of a building element 11 in the form of a window is explained in more detail. The building element 11 comprises an outer frame, which can optionally be positioned on a building structure using fastening means 15. To seal the window, several strip-shaped sealing elements 1 are provided, which are assembled to form a frame. The strip-shaped sealing elements 1 are mitered in the edge area and can be placed as a pre-assembled unit around the frame of the building element 11, as shown in Figure 10 is shown. Optionally, the frame made of the sealing elements 1 can be glued to the component 11 or fixed by mechanical fastening means.

[0032] The unit comprising the frame-shaped sealing elements 1 and the structural element 11 can now be positioned at a building opening to subsequently achieve a seal. For this purpose, the release means 8 on each of the sealing elements 1 is actuated, in particular, the actuating section 9 is pulled over the entire length of the strip-shaped sealing elements 1 in order to remove the release means 8 and thus the stop elements 7 from the support strip 2, as shown schematically in Figure 11is shown. By removing the solvent 8 and the stop elements 7, a compressed band 3, preferably several compressed bands 3, can now expand on the inside to create a seal between the sealing elements 1 and the structural element 11 and to press the sealing elements 1 outward against a building structure. The sequence of the assembly steps can also be modified; for example, the frame made of sealing elements 1 can be mounted in a building structure before the structural element 11 in the form of the window is then inserted into the frame made of sealing elements 1.

[0033] In Figure 12 The assembly of the component 11 in the form of a window and a frame made of sealing elements 1 on a building structure 20 is shown. A building opening is provided on the building structure 20, into which the component 11 is to be inserted in a sealed manner.

[0034] In Figure 13First, the frame made of sealing elements 1 is inserted into the building opening and can be secured using mechanical fasteners, such as screws. The structural element 11 in the form of the window is then inserted into this frame made of sealing elements 1 and optionally positioned using fasteners 15.

[0035] Once the window is in the correct position, the sealing solvent 8 can now be removed by pulling the actuating section 9 all the way around. This allows the compressed band 3 to expand and ensures a clamping fixation of the support strip 2 between the building structure 20 and the building element 11.

[0036] In the illustrated embodiment, the release means 8 are arranged on the side opposite the compressed band 3. It is, of course, also possible to provide the release means 8 on the same side as the compressed band 3.

[0037] The number of compressed bands 3 on each side can be selected depending on the installation situation. Furthermore, it is possible to provide a compressed band 3 or 4 on at least two sides of the support strip 2; optionally, compressed bands 3 or 4 can also be mounted on three or all four sides. Furthermore, the compressed band 3 or 4 can be constructed in several parts and, for example, have several layers that can expand to different degrees. Furthermore, the compressed band 3 or 4 can be hermetically sealed on at least one side by a film to prevent moisture penetration.

[0038] The length of the sealing elements 1 depends on the structural element to be sealed. The sealing elements are preferably provided in lengths between 50 cm and 5 m so that they can be adjusted to the desired installation position on site. The sealing elements 1 can be cut to the desired length for this purpose.

[0039] Optionally, the sealing elements can also be pre-assembled on window or door frames.

[0040] In the illustrated embodiments, the support strip 2 is formed in one piece, but can also be composed of several parts. List of reference symbols

[0041] 1 Sealing element 2 Support strip 3, 3'Hinge 4Hinge 5, 5' Holding element 6, 6' Stop element 7 Stop element 8 Release element 9 Operating section 10 Window 11 Building element 12 Casement 13 Fastening element 14 Screw connection 15 Fastening element 16 Building structure 20 Building structure

Claims

1. Sealing element (1) for sealing a building element (11) with respect to a building structure (20), comprising a carrier strip (2) made of an insulating rigid foam, to which a compressed band (3, 3') is fixed on at least one side, in which the compression is maintained by means of holding means (5, 5') on or in the compressed band (3), wherein the holding means (5) are releasable in order to expand the compressed band (3, 3'), characterized in that the compressed band (3, 3') is received in a groove of the support strip (2).

2. Sealing element according to claim 1, characterized in that the volume of the expanded band is at least twice the volume of the compressed band (3, 3').

3. Sealing element according to claim 1 or 2, characterized in that the holding means (5, 5') pass through the compressed band (3, 3').

4. Sealing element according to one of the preceding claims, characterized in that the holding means (5, 5') pass through the support bar (2).

5. Sealing element according to one of the preceding claims, characterized in that the holding means (5, 5') comprise a plurality of tension elements which have a stop element (6, 7) on opposite sides, and each tension element pretensions the compressed band (3, 3') towards the carrier strip (2).

6. Sealing element according to one of the preceding claims, characterized in that a release means (8) for releasing the holding means (5) is provided, which is arranged on a side of the carrier strip (2) which is opposite the side with the compressed band (3, 3').

7. Sealing element according to one of the preceding claims, characterized in that the release means (8) is designed as a tear-off element by means of which the stop elements of the respective holding means (5) can be released.

8. Sealing element according to one of the preceding claims, characterized in that at least one compressed band (3, 3') is arranged on at least two sides of the carrier strip (2).

9. Component (11) with at least one sealing element according to one of the preceding claims on at least one side.

10. Component according to claim 9, characterized in that the structural element (11) is designed as a window or door and the sealing element (1) is fixed to an outer side of a frame of the window or door.

11. A method for assembling a building element (11) into a building structure (20), comprising the following steps: - attaching a sealing element (1) with a support strip (2) made of an insulating rigid foam and a compressed band (3, 3') to at least one side of the building element (11), wherein the compression of the band is maintained by holding means on or in the band (3, 3'); - inserting the building element (11) into a building opening in the building structure (20), wherein the sealing element (1) is arranged between the building structure (20) and the building element (11), and - releasing the holding means (5, 5') and expanding the compressed band (3, 3') so that a gap between the building structure (20) and the building element (11) is filled.

12. Method according to claim 11, characterized in that the component (11) is designed as a window or door and several sections of the sealing element (1) are arranged circumferentially on an outer side of a frame of the component (11).

13. Method according to claim 11 or 12, characterized in that the holding means (5, 5') are released by withdrawing a solvent (8) in order to expand the compressed band (3, 3').

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