STRUCTURAL ELEMENT FOR LOW HEAT-BRIDGING ATTACHMENT OF A PROTRUDING EXTERIOR PART TO A BUILDING ENVELOPE

Abstract

A structural element for the low heat-bridging attachment of a protruding exterior part to a building envelope, having at least one insulating body to be arranged between the protruding exterior part and the building envelope, and at least one force transmission element which can be connected to the protruding exterior part and to the building envelope. The insulating body has at least one enveloping element and at least one insulating material introduced into the enveloping element, which enveloping element can be produced by folding and/or plugging together so that the enveloping element is storable substantially flat in an unfolded and/or non-plugged-together storage state, whereas the enveloping element is filled with the insulating material in a folded and/or plugged-together use state and is traversed by the force transmission element. A method for producing such a structural element for the low heat-bridging attachment of a protruding exterior part to a building envelope is also provided.

Claims

1. A structural element (7) for low heat-bridging attachment of a protruding exterior part to a building envelope, comprising: at least one insulating body (8) that is adapted to be arranged between the protruding exterior part and the building envelope, at least one force transmission element (9, 10, 11) that is adapted to be connected to the protruding exterior part and to the building envelope, the insulating body comprises at least one enveloping element (1) and an insulating material that is introducible into the enveloping element (1), said enveloping element (1) is producible by at least one of folding or plugging together such that the enveloping element (1) is storable substantially flat in at least one of an unfolded or non-plugged-together, storage state, and in an at least one of folded or plugged-together, use state, the enveloping element (1) is filled with the insulating material and traversed by the force transmission element (9, 10, 11).

2. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 1, wherein the enveloping element (1) has a peripheral outer wall (2) and at least two cover elements (31, 32), said cover elements (31, 32) close the outer wall (2) on end sides in the use state, the outer wall (2) and the cover elements (31, 32) enclosing an inner region of the enveloping element (2) in the use state, and at least one of the outer wall (2) or the cover elements (31, 32) including a reclosable filling opening for filling the insulating material.

3. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 2, wherein the outer wall (2) has at least two predetermined breaking points (61, 62, 63, 64, 65, 66), said predetermined breaking points (61, 62, 63, 64, 65, 66) are adapted to allow the force transmission element (9, 10, 11) to traverse the enveloping element (1) in the use state.

4. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 3, wherein at least one of the outer wall (2) or the cover elements (31, 32) comprise a one-piece blank, with fold lines arranged at least one of between the outer wall (2) and the cover elements (31, 21) or within the outer wall (2), and said fold lines serve for converting the blank of the enveloping element (1) from the storage state into the folded use state.

5. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 3, wherein the outer wall (2) comprises at least four side walls (21, 22, 23, 24) which, in the use state of the enveloping element (1), are articulated to one another on longitudinal sides thereof, and the predetermined breaking points (61, 62, 63, 64, 65, 66) being arranged in alignment on two mutually opposite side walls (21, 23) in the use state.

6. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 5, wherein the cover elements (31, 32) are arranged on transverse sides of at least one side wall (21, 22, 23, 24), and the cover elements (31, 32) are articulated toward the inner region of the enveloping element (1) in the use state of the enveloping element (1).

7. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 6, wherein a first one of the side walls (21, 22, 23, 24) has, on the longitudinal side, a flap (5) which, in the use state of the enveloping element (1), at least partially overlaps or is plugged into a further one of the side walls (21, 22, 23, 24), and at least one of the side walls (21, 22, 23, 24) or the flap (5) are plugged together or connectable on the longitudinal sides.

8. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 1, wherein at least one of the enveloping element (1), the insulating material, or the force transmission elements (9, 10, 11) are formed from a fire-retardant material.

9. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 8, wherein the fire retardant material comprises at least one of: from a noncombustible material, particularly preferably from cellulose material, fiber-reinforced cellulose material, cardboard, plastic, fiber-reinforced plastic, plasterboard, cement-impregnated fabric, high-performance concrete slabs, fiber-reinforced concrete slabs.

10. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 1, wherein the enveloping element (1) is provided on an outer side with a coating.

11. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 10, wherein the coating is a noncombustible coating.

12. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 1, wherein the insulating material comprises a bulk material and is filled into the enveloping element in the use state.

13. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 12, wherein the insulating material is able to be consolidated by at least one of binders or pressure application in the use state of the enveloping element (1).

14. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 1, wherein the insulating material comprises one or more insulating material blanks that are placed in the enveloping element in the use state.

15. The structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 2, wherein the inner region of the enveloping element (1) is lined with a bag in the use state, and said bag is filled with the insulating material in the form of bulk material, the bag having at least two predetermined breaking points or through-openings which correspond to the predetermined breaking points (61, 62, 63, 64, 65, 66) of the enveloping element, and said predetermined breaking points or through-openings allow the force transmission element (9, 10, 11) to traverse the bag in the use state of the enveloping element.

16. A method for producing the structural element (7) for the low heat-bridging attachment of the protruding exterior part to the building envelope as claimed in claim 1, the method comprising: providing the enveloping element (1) in the storage state, converting the enveloping element (1) to the use state by at least one of folding and plugging together the enveloping element (1), introducing the insulating material into the enveloping element (1) in the use state, and arranging the at least one force transmission element (9, 10, 11) in a traversing manner through the enveloping element (1) in the use state that is adapted for connection to the protruding exterior part and to the building envelope.

17. The method as claimed in claim 16, further comprising filling the insulating material into the enveloping element (1) in the form of bulk material, and consolidating the insulating material by at least one of a pressure application or by introducing a binder.

18. The method as claimed in claim 16, further comprising placing the insulating material in the enveloping element (1) in the form of one or more insulating material blanks.

19. The method as claimed in claim 16, further comprising providing a coating on an outer side of the enveloping element (1).

20. The method as claimed in claim 16, further comprising lining an inner region of the enveloping element (1) with a bag in the use state of the enveloping element (1), and filling the insulating material in the form of bulk material into the bag.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Further advantageous properties of the invention will emerge from the following description of exemplary embodiments with reference to the drawing, in which

[0039] FIG. 1 shows a first exemplary embodiment of an enveloping element of a structural element according to the invention in an unfolded and non-plugged-together storage state;

[0040] FIG. 2 shows a second exemplary embodiment of an enveloping element of a structural element according to the invention in a non-plugged-together storage state; and

[0041] FIG. 3 shows a third exemplary embodiment of a structural element according to the invention in a folded and plugged-together use state.

DETAILED DESCRIPTION

[0042] FIG. 1 shows a first exemplary embodiment of an enveloping element 1 of a structural element according to the invention in an unfolded and non-plugged-together storage state. The enveloping element 1 has an outer wall 2 and two cover elements 31, 32.

[0043] In the present exemplary embodiment, the outer wall 2, which comprises four side walls 21, 22, 23, 24, and the cover elements 31, 32 are formed as a one-piece blank from cardboard, both the side walls 21, 22, 23, 24 and the cover elements 31, 32 having a rectangular shape.

[0044] The cover elements 31, 32 are arranged, on the transverse sides, on two mutually opposite sides of the first side wall 21, a respective fold line 41, 42 being arranged between the cover elements 31, 32 and the first side wall 21. These fold lines 41, 42 serve to articulate the cover elements 31, 32 onto the outer wall 2 when converting the enveloping element 1 from an unfolded and non-plugged-together storage state into a folded and plugged-together use state. The two cover elements 31, 32 further have a first cover flap 311, 321 which is formed on the side opposite to the first side wall 21. On the two sides situated parallel to the longitudinal axis of the side walls 21, 22, 23, 24, the two cover elements have two further cover flaps 312, 313, 322, 323. Also formed between these cover flaps 311, 312, 313, 321, 322, 323 and the two cover elements 31, 32 are fold lines which serve to articulate the cover elements 31, 32 at the end sides onto the outer wall 2 of the enveloping element 1 in the use state. In the present exemplary embodiment, the cover flaps 311, 312, 313, 321, 322, 323 of the cover elements 31, 32 are inserted into the folded outer wall 2 at the end sides and adhesively bonded thereto when converting the enveloping element 1 from the storage state into the use state. However, it is also within the scope of the invention that use can be made of additional fastening means in order to increase the form-fitting connection between the cover elements 31, 32 and the outer wall 2.

[0045] As can be seen from FIG. 1, the outer wall 2 comprises four side walls 21, 22, 23, 24. Furthermore, a flap 5 is integrally formed on the longitudinal side on a fourth side wall 24 which is situated on the side of the outer wall 2 opposite to the first side wall 21. This flap 5 serves to close the outer wall 2 when converting the enveloping element 1 from the storage state into the use state in that the flap 5 partially overlaps the first side wall 21 on the longitudinal side and is permanently connected thereto by adhesive bonding. It is here within the scope of the invention that the flap 5 has, on the side facing the first side wall 21 of the outer wall 2, a double-sided adhesive tape for connection to the first side wall 21. Alternatively, however, an adhesive coating can also be applied. Furthermore, the flap 5 can also be connected to the first side wall 21 via additional connection means.

[0046] Two side walls 21, 23, which are arranged on two mutually opposite sides of the enveloping element 1 in the use state of the enveloping element 1, each have mutually corresponding round predetermined breaking points 61, 62, 63, 64 and rectangular predetermined breaking points 65, 66. For the sake of clarity, only individual predetermined breaking points have been provided by way of example with corresponding numbering in FIG. 1. The number, position or geometric shape of these predetermined breaking points 61, 62, 63, 64, 65, 66 can vary depending on the structural requirements of the structural element according to the invention in the installed state. In the present exemplary embodiment, the predetermined breaking points 61, 62, 63, 64, 65, 66 are formed as perforations in the side walls 21, 23.

[0047] In the use state, the round and rectangular predetermined breaking points 61, 62, 63, 64, 65, 66 allow the traversing arrangement of force transmission elements in the enveloping element 1 (not shown in FIG. 1) in that they can be pierced in a simple manner by the force transmission elements. It is here within the scope of the invention that the side walls 21, 23 already have a predefined number of predetermined breaking points 61, 62, 63, 64, 65, 66 which, depending on the structural requirement placed on the structural element according to the invention, serve only partially or completely for the traversing arrangement of force transmission elements. Alternatively, however, there also exists the possibility that, corresponding to the structural requirement, a predefined number of predetermined breaking points 61, 62, 63, 64, 65, 66 are incorporated into the side walls 21, 23 by perforation during the fabrication of the structural element. However, the invention is not limited thereto. In order that the flap 5 can partially overlap the first side wall 21 on the longitudinal side, it likewise has predetermined breaking points 51, 52 which, in the use state of the enveloping element 1, are arranged to correspond to the predetermined breaking points 61, 62, 63, 64, 65, 66 of the side walls 21, 23.

[0048] In the present exemplary embodiment, the round predetermined breaking points 61, 62, 63, 64 serve to introduce the force transmission elements in the form of bar-shaped reinforcing elements, which serve to take up tensile, compressive and shear forces, into the enveloping element 1 in a traversing manner in the use state. Additional rectangular compression elements can be inserted via the rectangular predetermined breaking points 65, 66 into the enveloping element 1 in the use state.

[0049] Furthermore, three of the side walls 22, 23, 24 each have two side flaps 221, 222, 231, 232, 241, 242 which are each integrally formed on their transverse side, fold lines for articulating the side flaps 221, 222, 231, 232, 241, 242 being arranged between the side flaps 221, 222, 231, 232, 241, 242 and the side walls 22, 23, 24. These side flaps 221, 222, 231, 232, 241, 242 serve to close the outer wall 2 when converting the enveloping element 1 from the storage state into the use state in that, in the use state of the enveloping element 1, the side flaps 221, 222, 231, 232, 241, 242 are partially overlapped with the cover elements 31, 32 and permanently connected thereto by adhesive bonding.

[0050] FIG. 2 shows a second exemplary embodiment of an enveloping element 1 of a structural element according to the invention in a non-plugged-together storage state, in which the outer wall 2 is of multipart design, with the result that the outer wall 2 comprises four separate side walls 21, 22, 23, 24. The cover elements 31, 32 are also formed as two separate components of the enveloping element 1.

[0051] By contrast with the above-described exemplary embodiment, the side walls 21, 22, 23, 24 can be connected to one another by being plugged together on their longitudinal sides. The stability of this form-fitting connection can be increased by additional connection means or by using an adhesive. Furthermore, the cover elements 31, 32 can also be connected to the outer wall 2 at the end sides through the formation of a form-fitting plug closure, i.e. can be connected to the already plugged-together side walls 21, 22, 23, 24. All further features of the enveloping element 1 correspond to those which are explained in FIG. 1, and therefore further details will not be discussed.

[0052] FIG. 3 shows a third exemplary embodiment of a structural element 7 according to the invention in a folded and plugged-together use state.

[0053] The structural element 7 has an insulating body 8, which is to be arranged between the protruding exterior part and the building envelope, and a plurality of force transmission elements in the form of reinforcing elements 9, 10, 11 which can be connected to the protruding exterior part and to the building envelope.

[0054] These reinforcing elements 9, 10, 11 can be differentiated into tensile and compressive force bars which traverse the insulating body 8 horizontally and take up tensile or compressive forces between the adjoining structural parts and transfer them, into shear force bars which extend substantially diagonally through the insulating body 8 and take up shear forces between the adjoining structural parts and transfer them, and compression elements 10 which are substantially cuboidal and likewise traverse the insulating body 8 horizontally, but do not project out of the insulating body 8. The compression elements 10 likewise serve to take up compressive forces acting on the structural element 7. The compressive force, tensile force and shear force bars 8, 9 extending outside of the insulating body 8 are connected, during installation of the structural element 7, between the building envelope and the protruding exterior part.

[0055] The insulating body has an enveloping element 1 which is formed from an outer wall 2 and two cover elements 31, 32. In the present exemplary embodiment, perlite in the form of bulk material as insulating material is filled into the enveloping element 1. Furthermore, the enveloping element has a water-repellent, noncombustible coating. All further features of the enveloping element 1 correspond to those which are explained in FIG. 1, and therefore further details will not be discussed.