Fastening assembly for a ventilated facade

Abstract

Fastening assembly (10) for a ventilated facade, comprising an anchor rod (11), an anchor rod fastening unit (12) with a locking component (13) for attachment to the anchor rod (11) and a facade mounting component (14) for at least indirectly fastening a cladding element of the ventilated facade, a load transfer unit (15), characterized in that the load transfer unit (15) comprises a fixed point nut (16) with a threaded bore (20) and a slot (21) and a load transfer element (17), wherein the threaded bore (20) of the fixed point nut (16) is designed and intended to be screwed onto a thread of the anchor rod (11), wherein the load-bearing element (17) is designed on a first side (22) for insertion into the slot (21) of the fixed-point nut (16) and on a second side (23) for at least indirectly fastening a cladding element of the ventilated facade.

Description

[0001] The invention relates to a fastening assembly for a ventilated facade.

[0002] In construction, a ventilated facade is a multi-layered exterior wall construction, which is specified in more detail in DIN 18516-1:2010-06, for example.

[0003] Ventilated facades can, for example, be attached using anchor rods that are anchored to a load-bearing structure, in particular in a load-bearing wall of a building. The load-bearing wall is typically an exterior wall of a building to which flat cladding elements of an exterior cladding can be attached directly or indirectly, for example via additional support profiles or other support elements such as brackets or the like, using anchor rods and attached brackets. Since the cladding elements are attached to a load-bearing structure via the anchor rods and brackets, strict requirements are placed on the holding force, stability, and load-bearing capacity of the anchor rods and brackets. In particular, anchor rods and brackets must absorb both the weight of the facade and wind forces – i.e. forces parallel and normal to the load-bearing structure.

[0004] The cladding elements, typically arranged parallel to the load-bearing wall, form the visible outer surface of the façade and also serve as protection, particularly against driving rain. The anchor rods space the cladding elements laterally from the wall. This creates a space between the cladding elements and the load-bearing structure, into which insulation material, such as rock or mineral wool, can be inserted for thermal insulation.

[0005] Typically, a variety of fastening assemblies are attached to the load-bearing structure, e.g., an exterior wall of a building. To absorb the wind forces acting normal to the exterior wall, in particular wind suction and wind pressure forces, the cladding elements are attached directly or indirectly to the anchor rod via anchor rod fastening units. To absorb the vertically acting weight of the structure, load-bearing elements are provided. These are formed from sheet metal, are placed flush against the exterior wall on the wall side, and have a hole for attaching the load-bearing element to the wall using a nut and the anchor rod passing through the hole. To attach the cladding elements, the load-bearing elements are first bent to achieve the wall-side angle and then rotated by 90° to achieve a vertical alignment for holding the cladding elements.

[0006] The disadvantage of such a design for the load-bearing element, however, is that the bending processes involved in manufacturing are complex and expensive. Furthermore, the angled fixation to the anchor rod is unfavorable, as the load-bearing element hangs loosely from the anchor rod until final fixation and protrudes at the intended angle after fixation. This can complicate or disrupt subsequent assembly steps. Furthermore, the fastening by means of the nut can become loose.

[0007] The invention is therefore based on the object of providing a fastening assembly which overcomes the above-mentioned disadvantages and in particular enables simplified assembly with comparable stability.

[0008] This object is achieved by a fastening assembly having the features of claim 1. Advantageous embodiments are the subject of the subclaims and result from the following explanations.

[0009] The fastening assembly according to the invention for a ventilated facade comprises an anchor rod, an anchor rod fastening unit with a locking component for attachment to the anchor rod and a facade mounting component for at least indirectly fastening a cladding element of the ventilated facade and a load transfer unit, wherein the load transfer unit comprises a fixed point nut with a threaded bore and a slot and a load transfer element, wherein the threaded bore of the fixed point nut is designed and intended for screwing onto a thread of the anchor rod, wherein the load transfer element is designed on a first side for insertion into the slot of the fixed point nut and on a second side for at least indirectly fastening a cladding element of the ventilated facade.

[0010] The term "at least indirect fastening of a cladding element" is understood in particular to mean that the cladding element is fastened directly or indirectly. In the case of indirect fastening, the cladding element can be fastened, for example, via additional support profiles or other support elements, such as brackets or the like.

[0011] The advantages of the invention arise in particular from the fact that the load transfer unit comprises the fixed point nut and the load transfer element that can be inserted into the slot of the fixed point nut. As a result, the load transfer element according to the invention, thanks to the fixed point nut, eliminates the complex and therefore expensive bending and twisting required in the prior art. A further advantage is that the load transfer element inserted into the slot of the fixed point nut initially remains movable despite the fixed point nut being screwed tight and thus does not protrude rigidly at an angle after fixing, as is the case with the prior art. Instead, the load transfer element can, for example, initially be aligned parallel to the anchor rod, so that further assembly steps, such as the insertion of insulation material, are not hindered or disrupted, or at least are less hindered or disrupted.Only at a later point is the load-bearing element then adjusted to the intended angle for attachment to the cladding element. A further advantage is that the fixed point nut cannot loosen even over extended periods due to the inserted load-bearing element, unlike conventional fastening nuts of the prior art, which can loosen over time, potentially loosening the load-bearing element's attachment to the wall.

[0012] It can be provided that the load-bearing element has at least one lateral projection on the first side, which, when inserted through the slot of the fixed-point nut, forms at least one undercut for contact with a wall side of the fixed-point nut in an inclined position of the load-bearing element relative to the anchor rod. For example, the load-bearing element can have two such lateral projections on the first side, which both bear against the wall side of the fixed-point nut in the inclined position of the load-bearing element. This has the advantage that the load-bearing element is inserted into the slot of the fixed-point nut for assembly and is fixed by the undercut after transfer to the inclined position.

[0013] According to one embodiment of the invention, the at least one lateral projection of the load-bearing element is shaped such that the load-bearing element can be inserted through the slot of the fixed-point nut in a push-through position. By rotating or pivoting the load-bearing element into the inclined position, the at least one lateral projection rests against one wall side of the fixed-point nut, thus forming the undercut and the stable, positive-locking connection.

[0014] The insertion position is in particular a parallel alignment of the load transfer element relative to the anchor rod.

[0015] During installation, the fixed point nut is first screwed onto the anchor rod, and then the load transfer element is inserted into the slot in its through-hole position, i.e., in particular, parallel to the anchor rod. Subsequently, if necessary after performing further installation steps, the load transfer element is rotated or pivoted into the inclined position so that the undercut rests against the wall side of the fixed point nut.

[0016] Furthermore, it can be provided that a holding device is formed or arranged on the anchor rod fastening unit, which is designed to hold the load-bearing element inserted into the slot of the fixed point nut in a predetermined orientation relative to the anchor rod, in particular at least substantially parallel to the anchor rod, preferably in its push-through position, on the anchor rod fastening unit. For example, the holding device comprises a hook formed on the locking component of the anchor rod fastening unit.

[0017] This support for the load-bearing element facilitates further installation steps, such as the installation of insulation material. Only after these additional installation steps is the load-bearing element removed from the support device and rotated or pivoted into the desired angled position for attaching the cladding elements.

[0018] The load-bearing element can form a fastening blade on the second side for at least indirectly fastening a cladding element of the ventilated facade.

[0019] The fixed point nut may be made of aluminum or stainless steel or may include aluminum or stainless steel.

[0020] Furthermore, it can be provided that the load transfer element is formed, in particular cut, from a sheet metal and consists of stainless steel or comprises stainless steel.

[0021] The invention will be explained in more detail below with regard to further features and advantages based on the description of exemplary embodiments and with reference to the accompanying schematic drawings. Fig. 1 a perspective view of a first embodiment of a fastening assembly according to the invention, Fig. 2 a perspective view of a fixed point nut of the fastening assembly according to the invention of the first embodiment according to Fig. 1, Fig. 3 a plan view of a load transfer element according to the invention of the fastening assembly according to the invention of the first embodiment according to Fig. 1, Fig. 4 a side view of the fastening assembly according to the invention of the first embodiment according to Fig. 1, Fig. 5 a side view with a sectioned fixed point nut of the fastening assembly according to the invention of the first embodiment according to Fig. 1, Fig. 6 a side view with a sectioned fixed point nut of the fastening assembly according to the invention of the first embodiment according to Fig. 1 in the push-through position, Fig. 7a a perspective view of a second embodiment of the fastening assembly according to the invention, Fig. 7b a side view of the second embodiment of the fastening assembly according to the invention.

[0022] Corresponding parts and components are designated by the same reference numerals in the figures. The illustrations in the figures are not necessarily to scale, and scales may vary between figures.

[0023] Fig. 1 shows a perspective view of a first embodiment of a fastening assembly 10 according to the invention. The fastening assembly 10 comprises an anchor rod 11, an anchor rod fastening unit 12, and a load-bearing unit 15. The anchor rod 11 has a continuous external thread and is anchored on its wall side in a wall 18, in particular an exterior wall of a building. On the side opposite the wall side of the anchor rod 11, the anchor rod fastening unit 12 is provided, which comprises locking components 13 and a facade mounting component 14, for example, designed as a fastening blade. A support profile 19 for a cladding element can be fastened to the facade mounting component 14. However, it is also possible for a cladding element to be fastened directly to the anchor rod fastening unit 12.

[0024] The anchor rod fastening unit 10 according to the invention serves to absorb forces, in particular suction and pressure forces caused by wind, which act in the normal direction on the cladding elements of the facade.

[0025] Furthermore, Fig. 1, the load-bearing unit 15 comprises a fixed-point nut 16 and a load-bearing element 17. The load-bearing element 17 serves to absorb forces acting parallel to the facade, in particular the weight of the cladding elements, including any brackets present.

[0026] Referring to Fig. 2 and Fig. 3, the fixed-point nut 16 comprises a threaded bore 20 and a slot 21, wherein the threaded bore 20 of the fixed-point nut 16 is designed and intended for screwing onto the external thread of the anchor rod 11. The load-bearing element 17 has a first side 22 for insertion into the slot 21 of the fixed-point nut 16 and a second side 23 for at least indirectly fastening a cladding element of the ventilated facade.

[0027] In the first exemplary embodiment illustrated in the figures, the load-bearing element 17 has two lateral projections 24 on its first side 22 facing the wall 18, which, when inserted through the slot 21 of the fixed-point nut 16, form undercuts for engagement with a wall side of the fixed-point nut 16 in an oblique position of the load-bearing element 17 relative to the anchor rod 11. Furthermore, the load-bearing element 17 forms a fastening blade 25 on its second side 23 facing away from the wall 18 for at least indirectly fastening a cladding element of the ventilated facade.

[0028] Fig. 4 and Fig. 5 show the fastening assembly 10 according to the invention in side view, wherein in Fig. 5 the fixed point nut 16 is shown in section. The lateral projections 24 of the load-bearing element 17 rest against the wall-side wall of the fixed point nut 16 and, thanks to the undercut, ensure a stable, positive connection. For fastening the support profile 19 for a cladding element, holes 26 for screws are provided in the fastening blade 25 of the load-bearing element 17. This ensures that the acting weight forces are transferred to the load-bearing element 17 and thus to the wall 18. The facade mounting component 14, designed as a fastening blade, on the other hand, has vertical elongated holes 27 that are not designed to absorb weight forces. The entire anchor rod fastening unit 12 thus serves primarily to absorb normally acting forces, in particular wind suction and wind pressure forces.

[0029] Fig. 6 shows the fastening assembly 10 according to the invention, again with the fixed point nut 16 shown in section, in a push-through position in which the load-bearing element 17 can be inserted through the slot 21 of the fixed point nut 16. In this exemplary embodiment, the push-through position is, in particular, a horizontal position of the load-bearing element 17 relative to the anchor rod 11. In the push-through position, the projections 24 fit through the slot 21 of the fixed point nut 16. The positive connection is only formed when the projections 24 bear against the wall of the fixed point nut 16, i.e., by transferring the load-bearing element 17 into the inclined position. This is achieved by rotating or pivoting the load-bearing element 17.

[0030] A second embodiment of the invention is shown in Fig. 7a and Fig.7b. The load-bearing element 17 is held in a parallel alignment to the anchor rod 11 by a holding device 28, for example in the form of a hook formed on the anchor rod fastening unit 12, specifically one of the locking components 13. This mounting of the load-bearing element 17 facilitates further assembly steps, such as the insertion of insulation material. Only after these further assembly steps is the load-bearing element 17 removed from the holding device 28 and brought into the intended inclined position by rotation or pivoting for attaching the cladding elements. List of reference symbols 10 Mounting assembly 11 Anchor rod 12 anchor rod fastening unit 13 Locking component 14 Facade assembly component 15 Load transfer unit 16 Fixed point nut 17 Load transfer element 18 Wall, for example the exterior wall of a building 19 Support profile for cladding element 20 threaded holes 21 slot 22 first side of the load transfer element 17 23 second side of the load transfer element 17 24 lateral projection 25 fortification sword 26 holes for screws 27 elongated holes 28 Holding device, e.g. hook QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited non-patent literature

[0000] DIN 18516-1:2010-06

[0002]

Claims

[1] Fastening assembly (10) for a ventilated facade, comprising an anchor rod (11), an anchor rod fastening unit (12) with a locking component (13) for attachment to the anchor rod (11) and a facade mounting component (14) for at least indirectly fastening a cladding element of the ventilated facade, a load transfer unit (15), characterized by , that the load transfer unit (15) comprises a fixed point nut (16) with a threaded bore (20) and a slot (21) and a load transfer element (17), wherein the threaded bore (20) of the fixed point nut (16) is designed and intended to be screwed onto a thread of the anchor rod (11), wherein the load-bearing element (17) is designed on a first side (22) for insertion into the slot (21) of the fixed-point nut (16) and on a second side (23) for at least indirectly fastening a cladding element of the ventilated facade. [2] Fastening assembly according to claim 1, characterized by that the load transfer element (17) has at least one lateral projection (24) on the first side (22) which, when inserted through the slot (21) of the fixed point nut (16), forms at least one undercut for engagement with a wall side of the fixed point nut (16) in an oblique position of the load transfer element (17) relative to the anchor rod (11). [3] Fastening assembly according to claim 2, characterized bythat the lateral projection(s) (24) of the load-bearing element (17) are shaped such that the load-bearing element (17) can be inserted through the slot (21) of the fixed point nut (16) in a through-position. [4] Fastening assembly according to one of the preceding claims, characterized by that a holding device (28) is formed or arranged on the anchor rod fastening unit (12), which holding device is designed to hold the load transfer element (17) inserted into the slot (21) of the fixed point nut (16) in a predetermined orientation to the anchor rod (11), in particular at least substantially in a parallel orientation to the anchor rod (11), on the anchor rod fastening unit (12). [5] Fastening assembly according to one of the preceding claims, characterized bythat the load-bearing element (17) forms a fastening blade (25) on the second side (23) for at least indirectly fastening a cladding element of the ventilated facade. [6] Fastening assembly according to one of the preceding claims, characterized by that the fixed point nut (16) is made of aluminum or stainless steel or comprises aluminum or stainless steel. [7] Fastening assembly according to one of the preceding claims, characterized by that the load-bearing element (17) is formed from a sheet metal and consists of stainless steel or comprises stainless steel.

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