EP4043662A1 - Wall holder for a spacing device, spacing device and method for producing a wall holder - Google Patents

Abstract

The invention relates to a wall bracket (1) for a holding device, by means of which panel-shaped wall or ceiling cladding elements can be attached to an on-site substructure, the wall bracket being of angular design and having a first leg (2) which can be fastened to the substructure and an angled, preferably right-angled, to the first leg (2) extending second leg (3). According to the invention, the second leg (3) has a bevel (6) on at least one longitudinal side (A), preferably on two opposite longitudinal sides (A, B), the height of which varies a method of making a wall mount.

Description

The invention relates to a wall bracket for a holding device, by means of which panel-shaped wall or ceiling cladding elements can be attached to an on-site substrate. Furthermore, the invention relates to a holding device with such a wall bracket and a method for producing a wall bracket.

Technical background

Holding devices for attaching panel-shaped wall or ceiling cladding elements are used in particular in curtain-type, rear-ventilated facades, namely for fastening panel-shaped facade elements to an outer wall. External walls, especially if they are solid, are usually insulated on the outside. However, the holding device cannot be attached to the insulation, but must be guided through the insulation layer to the supporting wall construction. The length or projection of the holding device therefore corresponds at least to the thickness of the insulating layer. In addition, there is usually the thickness of an air layer for rear ventilation of the facade. The overhang can therefore be considerable, which increases the static requirements for the holding device according to the law of the lever. This applies in particular when using particularly heavy facade elements, such as those made of natural stone or glass.

Holding devices for attaching plate-shaped wall or ceiling cladding elements to a structural substructure must therefore have sufficient mechanical stability in order to meet the load requirements. This applies in particular to the wall bracket of a holding device. Because the wall bracket is usually fastened directly to the subsurface and guided through the insulation layer, so that the wall bracket has the greatest overhang.

From the DE 93 01 278 U1 shows an example of a wall bracket that is designed as a stable metal bracket. A first leg of the metal bracket is used to abut and attach the holding device to the on-site substrate. The holding device can be connected via the further leg to a holding profile which is essentially T-shaped and serves to hold panel-shaped wall or ceiling cladding elements.

Proceeding from the above-mentioned state of the art, the object of the present invention is to further increase the load-bearing capacity of a wall mount, and to be precise as far as possible without using additional material. In this way, a wall bracket for a holding device is to be created which satisfies high static requirements and is also simple and inexpensive to produce.

To solve the problem, the wall bracket with the features of claim 1 is proposed. Advantageous developments of the invention can be found in the dependent claims. Furthermore, a holding device with a wall bracket according to the invention and a method for producing a wall bracket are specified.

Disclosure of Invention

A wall bracket for a holding device is proposed, by means of which panel-shaped wall or ceiling cladding elements can be attached to a structural substructure. The wall bracket is embodied as an angle and has a first leg that can be fastened to the substrate and a second leg that extends at an angle, preferably at right angles, to the first leg. According to the invention, the second leg has a fold on at least one longitudinal side, preferably on two opposite longitudinal sides, the height of which varies.

The fold increases the mechanical stability of the second leg, in particular in a direction parallel to the fold, ie perpendicular to the second limb if—as is preferably the case—the fold runs perpendicular thereto. The second leg is thus stiffened by the fold. The greater rigidity prevents the wall mount from yielding and deforming under load, in particular bending or buckling.

The static strengthening of the wall bracket effected with the aid of the fold can also be carried out without the use of additional material, since the fold can be produced from the material of the second leg. For this purpose, the second leg is preferably cut on a longitudinal side and, starting from the incision, bent at an angle to the original course of the longitudinal edge. In this way, a fold is created, the height of which varies. The shape of the fold in the view can be triangular in particular. Due to the fact that the fold is made from the material of the second leg, existing conventional wall brackets can also be upgraded in a corresponding manner.

Since even a fold with a comparatively small height leads to a significant stabilization of the wall bracket, only a small amount of material is required to form the fold. Only a little material is lost on the second leg for forming the fold. In particular, the load-bearing capacity of the second leg is not impaired by this measure. The opposite is the case, since the second leg is stiffened by the fold, so that the load-bearing capacity of the second leg and thus of the wall bracket increases.

According to a preferred embodiment of the invention, the height of the fold decreases continuously from a first end of the fold towards a second end of the fold. The fold can thus be formed along a straight fold line and thus in one fold process. The straight edging line runs at an angle to the original longitudinal edge of the second leg. In order to only have to cut the second leg once, it is also proposed that the height of the fold tapers to zero towards the second end of the fold. At the second end of the fold, the second leg therefore has its original width, which corresponds to the height of the second leg in the position of use, ie when the wall bracket is mounted.

Furthermore, the height of the fold preferably decreases towards the first leg. In other words, this means that the height of the bevel also increases as the projection of the second leg increases. The fold therefore has the greatest stiffening effect in an area in which the load on the second leg is also greatest.

In a development of the invention, it is proposed that the fold is shorter than the second leg. This means that the fold does not extend over the entire length of the second leg. Thus, the second leg also has an area without a fold. The original width remains in this area (or height in the position of use) of the second leg. This area is preferably an end section of the second leg. Furthermore, the fold is preferably spaced apart from a front edge of the second leg. The second leg thus has its original width (or height in the position of use) at its front end, so that the entire height of the second leg is available at the load application point. In addition, it is ensured that the fastening of further components of the holding device, for example a holding profile, is not impeded by a fold on the second leg of the wall profile.

The second leg preferably has longitudinal edges which run obliquely to one another in the region of the at least one bevel, regardless of whether the second leg has a bevel on one or both longitudinal sides. This means that the width (or height in the position of use) of the second leg varies in the area of the at least one fold. Since the fold is made from the material of the second leg, the width of the second leg lost due to the fold corresponds to the height of the fold. The fold thus requires no additional use of material.

Furthermore, it is proposed that the longitudinal edges of the second leg run parallel to one another in an area without a fold. The wall bracket can thus be produced in a simple manner from a rectangular piece of sheet metal, for example by cutting or stamping and then edging. In the area without a fold, the second leg preferably has the same width (or height in the position of use) as the first leg of the wall bracket.

Advantageously, the wall bracket is made of sheet metal, in particular stainless steel sheet. Metal, in particular stainless steel, inherently has a high level of strength, so that a wall bracket made from it already has a high level of initial stability. The stability can be increased by the at least one fold be further increased. Stainless steel also has the advantage that it does not corrode and is therefore particularly suitable for use outdoors, preferably in the area of facades.

Furthermore, the wall bracket is preferably a stamped/bent part. The wall bracket can thus be produced easily and inexpensively. The at least one fold can be formed in a simple manner during the manufacture of the wall mount.

At least one recess for receiving a fastening means is preferably formed in each case in the first and in the second leg. With the aid of the fastening means, the wall bracket can be fastened on the one hand to an on-site substrate and on the other hand can be connected to another component of the holding device, for example to a holding profile. The at least one recess can be circular or in the form of a slot. Both circular and oblong recesses are preferably provided. This is because the elongated hole enables tolerance compensation in the event of thermal expansion of the retaining profile compared to a circular recess. In particular, screws can be used as fastening means.

To achieve the object mentioned at the outset, a holding device for attaching panel-shaped wall or ceiling cladding elements to a structural substructure is also proposed, which includes a wall bracket according to the invention. Due to the wall bracket according to the invention, the holding device has increased stability and thus load-bearing capacity or load-bearing capacity. The advantages of the wall mount according to the invention thus also extend to the holding device.

In addition to the wall bracket, the holding device preferably has at least one further component, in particular a holding profile. The panel-shaped wall or ceiling cladding elements can then be applied to the holding profile.

In order to simplify the connection of the holding profile to the wall bracket according to the invention, it is proposed that the holding profile be designed with a T-shaped cross section. The preferably centrally attached web of the cross-section T-shaped holding profile can then be placed laterally on the second leg of the wall bracket and connected to it. The plate-shaped wall or ceiling elements can then be fastened directly or indirectly to the outward-facing end face of the T-shaped holding profile.

In addition, a method for producing a wall bracket for a holding device from sheet metal, in particular sheet steel, is proposed. According to the invention, in the method, a cutout is provided on at least one side edge, preferably on two opposite side edges of the metal sheet, and the metal sheet is cut along a fold line that extends from the cutout, preferably from a base of the cutout, at an angle to the side edge of the metal sheet , edged so that a fold is created, the height of which varies.

The proposed method is therefore particularly suitable for producing a wall bracket according to the invention, ie a wall bracket with an increased load-bearing capacity. In order to form a wall bracket according to the invention, the sheet metal only has to be bent once more, so that an angular wall bracket with a first and a second leg is formed. In addition, at least one recess for receiving a fastener can be provided in each leg. A plurality of recesses, for example circular recesses and/or elongated holes, are preferably formed.

The increased stability or load-bearing capacity of a wall bracket produced according to the proposed method is due to the at least one fold in the area of a leg of the wall bracket, the at least one fold is preferably arranged in the region of the second leg, which defines the projection of the wall bracket. Due to the special position and course of the edging line, the edging can be formed from the material of the leg, so that no additional material is required and the basic geometry of the wall bracket can be retained. The special position and course of the edging line is in turn made possible by the recess provided in the metal sheet on one side edge.

A fold is preferably created with the aid of the proposed method, which is triangular in view. This means that the height of the fold runs continuously from a maximum to zero. The formation of such a fold requires only a recess, so that it is particularly easy to produce. Existing wall brackets can also be upgraded to a wall bracket according to the invention in the same way. In addition, there is less waste and material is saved.

A rectangular metal sheet is advantageously used to produce the wall mount. The rectangular shape means that waste can be further minimized. Furthermore, an angle with - at least initially - legs of the same width can be produced from this. After edging to produce the at least one fold, the width of a leg is then reduced at least in regions.

Furthermore, it is proposed that the edging line, along which the metal sheet is folded to form the fold, intersects the side edge of the metal sheet. The fold created over this then runs out to zero at one end. This has the advantage that only one recess has to be provided in the sheet metal to form the fold. The edging line preferably intersects the side edge in the area of a further edging line, which serves to form a first and a second leg of the wall bracket. The edging extends in this case from the recess of one leg to the other leg.

Advantageously, the recess for forming the fold on the side edge of the sheet metal is chamfered or rounded. The fold is thus also chamfered or rounded at its highest point. This ensures that when the wall bracket is installed, the installation of facade insulation is not obstructed by the fold.

Furthermore, it is proposed that the cutout is rounded once or twice at its end facing away from the side edge, that is to say at its base. Stress peaks during punching and/or edging of the sheet metal can be avoided via the radius or radii.

Furthermore, it is proposed that a metal sheet, in particular stainless steel sheet, with a thickness between 1 mm and 3 mm, preferably between 1.5 mm and 2.5 mm, more preferably 2 mm, is used. The increased stability of the wall bracket produced according to the proposed method due to the at least one fold allows the wall thickness to be reduced, so that a thinner metal sheet can be used as the starting material. This enables material and cost savings.

It is noted that if the term "edging" is used here, it is generally understood to mean a reshaping of the starting material by bending. Edging and bending are thus used synonymously.

Fig.1

eine perspektivische Darstellung eines ersten erfindungsgemäßem Wandhalters,

Fig. 2

a) und b) jeweils eine Seitenansicht des Wandhalters der Fig. 1,

Fig.3

eine Seitenansicht eines zweiten erfindungsgemäßen Wandhalters vor dem Kanten,

Fig. 4

einen vergrößerten Ausschnitt der Fig. 3 im Bereich einer Aussparung des zweiten Schenkels und

Fig. 5

eine alternative Ausführungsform einer Aussparung.

Preferred embodiments of the invention are described in more detail below with reference to the drawings. These show:

Fig.1

a perspective view of a first wall bracket according to the invention,

2

a) and b) each a side view of the wall bracket 1 ,

Fig.3

a side view of a second wall bracket according to the invention before edging,

4

an enlarged section of the 3 in the area of a recess of the second leg and

figure 5

an alternative embodiment of a recess.

Detailed description of the drawings

The Indian 1 Wall bracket 1 shown can in particular be part of a holding device for attaching panel-shaped wall or ceiling cladding element (not shown). For this purpose, the wall bracket 1 is of angular design and has a first leg 2 and a second leg 3 which are arranged at right angles to one another. The first leg 2 is used to attach the wall bracket 1 to an on-site base (not shown). For this purpose, the first leg 2 has a plurality of recesses 9, 10 for receiving fastening means (not shown). A holding profile (not shown) of the holding device can be attached to the second leg 3 . For this purpose, the second leg 3 also has a plurality of recesses 9, 10 for receiving fastening means (not shown). Both legs 2, 3 are provided with both circular and elongated recesses 9, 10. Tolerance compensation can be created with the aid of the recesses 10 designed as an elongated hole. The second leg 3 also has a clamping lug 14, which facilitates the assembly of the To simplify holding profile of the holding device. Because with the help of the clamping strap, a provisional attachment of the holding profile can first be achieved, which enables an exact adjustment of the holding profile before it is finally attached to the second leg 3 of the wall bracket 1. The clamping lug 14 is made from the material of the second leg 3, specifically in a stamping/bending process.

In addition, the second leg 3 of the 1 illustrated wall bracket 1 on its two long sides A, B folds 6, which are triangular in view. This means that the folds 6 have a height that runs down to zero from a first end 6.1 of the respective fold 6 to a second end 6.2 (see also Figure 2a )). The folds 6 stiffen the second leg 3 so that its load-bearing capacity increases. The load-bearing capacity of the wall bracket 1 as a whole also increases accordingly.

The folds 6 of the wall bracket 1 of 1 are also formed from the material of the second leg 3 . This means that this material of the width B (or the height H in the position of use) of the second leg 3 is missing in the area of the folds 6 (see Figure 2b )). However, the bevels 6 do not extend over the entire length L of the two longitudinal edges 4, 5, but only over a partial area, so that the second leg 3 has its original width B in an area 8 terminating with an end edge 7.

The wall bracket 1 of figures 1 and 2a) such as 2 B) can be prepared by a method that is based on the below Figures 3 to 5 is described in more detail.

3 shows an angular wall bracket 1 made of sheet metal with a first and a second leg 2, 3. Compared to a conventional wall bracket 1, the second leg 3 of the wall bracket 1 shown has at its both longitudinal sides A, B each have a recess 11. These are each provided with chamfers 12 on the side edges of the metal sheet and are each rounded on their base 15 (see also 4 ). The roundings with the radius R are intended to prevent stresses in the sheet metal during a subsequent edging process to form the folds 6 . In the present case, the recesses each have a width a and a length b and are arranged at the same distance d from the front edge 7 of the second leg 3 . From the bottom 15 of the recesses 11, a ridge line 13 extends to the first leg 2, specifically obliquely to the respective side edge of the metal sheet. At the end of the respective side edge, the edge line 13 intersects the side edge. If you then bend along the edging lines 13, triangular folds 6 are created.

Of the figure 5 an alternative form of a recess 11 can be seen. Instead of being rounded with a radius R, the recess 1 is rounded twice at its base 15, so that the base 15 runs straight in between.

Reference List

1

wall bracket

2

first leg

3

second leg

4

long edge

5

long edge

6

edging
6.1 first end of the fold
6.2 second end of the fold

7

front edge

8th

Area without edging

9

recess

10

recess

11

recess

12

chamfer

13

edging line

14

clamp strap

15

reason

A

first long side

B

second long side

H

Width or height of the second leg

L

length of the second leg

R

radius (of rounding)

a

width of the recess

b

length of recess

i.e

Distance of the recess from the front edge

Claims (15)

Wall bracket (1) for a holding device, by means of which panel-shaped wall or ceiling cladding elements can be attached to an on-site substructure, the wall bracket being of angular design and having a first leg (2) which can be fastened to the substructure and a first leg (2) which is at an angle, preferably at right angles, to the first leg ( 2) has extending second leg (3),
characterized in that the second leg (3) has a bevel (6), the height of which varies, on at least one longitudinal side (A), preferably on two opposite longitudinal sides (A, B). Wall bracket (1) according to claim 1,
characterized in that the height of the fold (6) decreases continuously from a first end (6.1) of the fold (6) towards a second end (6.2) of the fold (6), preferably running out to zero. Wall bracket (1) according to claim 1 or 2,
characterized in that the height of the fold (6) decreases toward the first leg (2). Wall bracket (1) according to one of the preceding claims,
characterized in that the folded edge (6) is shorter than the second leg (3) and/or is spaced apart from a front edge (7) of the second leg (3). Wall bracket (1) according to one of the preceding claims,
characterized in that the second leg (3) has longitudinal edges (4, 5) which run obliquely to one another in the area of the at least one bevel (6), so that the width of the second leg (3) in the area of the at least one bevel (6 ) varies. Wall bracket (1) according to claim 5,
characterized in that the longitudinal edges (4, 5) of the second leg (3) run parallel to one another in a region (8) without a bevel (6). Wall bracket (1) according to one of the preceding claims,
characterized in that the wall bracket (1) is made from sheet metal, in particular stainless steel sheet, and/or is a stamped/bent part. Wall bracket (1) according to one of the preceding claims,
characterized in that in each case at least one recess (9, 10) for receiving a fastening means is formed in the first and in the second leg (2, 3). Holding device for attaching panel-shaped wall or ceiling cladding elements to a structural substructure, comprising a wall holder (1) according to one of the preceding claims. A method for producing a wall bracket (1) for a holding device made of sheet metal, in particular sheet steel,
characterized in that a cutout (11) is provided on at least one side edge, preferably on two opposite side edges of the metal sheet, and the metal sheet along a fold line (13) extending from the cutout (11), preferably from a Base (15) of the recess (11) starting, extending obliquely to the side edge of the metal sheet, folded, so that a fold (6) is formed, the height of which varies. Method according to claim 10,
characterized in that a rectangular metal sheet is used. Method according to claim 10 or 11,
characterized in that the edging line (13) intersects the side edge of the metal sheet, preferably in the area of a further edging line for forming a first and a second leg (2, 3) of the wall bracket (1). Method according to one of claims 10 to 12,
characterized in that the recess (11) is chamfered or rounded on the side edge of the metal sheet. Method according to one of claims 10 to 13,
characterized in that the recess (11) is rounded once or twice at its end facing away from the side edge. Method according to one of claims 10 to 14,
characterized in that a metal sheet, in particular stainless steel sheet, with a thickness between 1 mm and 3 mm, preferably between 1.5 mm and 2.5 mm, more preferably 2 mm, is used.

Images