AT526007A2 - Floor drain and floor installation - Google Patents

Abstract

The invention relates to a floor drain with a drain housing (2) having a housing wall (1) made of a wall material and with foot elements (4) which are height-adjustable relative to the drain housing (2). According to the invention, the foot elements (4) are supported on the housing wall (1) via a volume material that is different from the wall material. The invention further relates to a floor installation with a subfloor (16) and a floor drain supported on the subfloor (16).

Description

a floor installation with a subfloor and one on top

Floor drain supported under the floor.

Within the scope of the invention, the floor drain is intended for a sanitary facility, in particular in the form of a shower tray, a shower area or bathtub. The floor drain is preferably connected to a drain opening in the sanitary facility in order to drain it. To enable an odor trap, the floor drain points

usually also has a siphon function,

According to the prior art, floor drains with a drain housing are often connected directly to a drain opening of a sanitary facility, for example in the form of a shower tray, via a simple seal. The position of the floor drain then depends on the orientation of the sanitary facility and specifically the position of the drain opening

specified.

While, for example, in bathtubs the area of

Drain opening during assembly also from below in many cases

is still accessible, the drain housing in a standard shower tray is covered from above during installation. It is known that the drain housing is initially only pre-positioned and is still movable to a certain extent, with a tight connection of the floor drain through the drain opening after the sanitary facility has been set up

Sanitary facilities are carried out. To what is described

UL referenced,

While according to the prior art described above, the position of the entire floor drain connected to the drain opening is predetermined by the drain opening itself, EP 3 848 522 AL teaches a multi-part design of the

floor drain.

A connecting part is connected to the drain opening of a sanitary facility in the form of a shower tray, which can also accommodate a siphon as an odor trap in a known manner. A sealing arrangement is then connected to the connecting part. The floor drain further comprises a drain housing arranged below the connecting part, wherein the connecting part can be positioned with a vertical tolerance and a horizontal tolerance relative to the drain housing. A sealing arrangement inserted into the drain housing on the one hand and connected to the connecting part on the other hand allows appropriate compensation due to a wave shape. In the case of the multi-part floor drain, the exact positioning of the connecting part and the siphon accommodated therein is predetermined by the position of the drain opening of the sanitary facility, in contrast to which the drain housing, which has a housing wall made of a wall material, has a certain

Poleranz can already be firmly mounted on a subfloor.

In the case of the generic floor drain, foot elements are also provided according to the preamble of claim 1, which are height-adjustable relative to the drain housing. The height adjustment can thus change the position of the drain housing

can be varied compared to the subfloor. The drain housing

Drain housing can be cut off,

The present invention is based on the object of specifying a floor drain which is easy to assemble with a compact design and a low installation height and has good functional properties. Furthermore, 501l has a floor installation with a corresponding floor drain

AT

which is supported on a subfloor.

The subject of the invention and solution to the problem are a floor drain according to claim 1 and a

Floor installation according to patent claim 17.

Starting from a floor drain with a drain housing having a housing wall made of a wall material and with foot elements which are height-adjustable relative to the drain housing for supporting the floor drain on a floor surface or a subfloor, it is provided according to the invention that the foot elements are attached to the wall material via a volume material that is different from the wall material Housing wall are supported. The foot elements are therefore not connected directly to the housing wall, but are spaced apart by the volume material. The volume material allows, on the one hand, an optimized shape of the floor drain in terms of assembly and function and, on the other hand, a certain spatial separation between the housing wall and the height-adjustable

Foot elements. For the floor drain, for example, between three and

Six foot elements must be provided to place this on one

To be able to support floor surface or a subfloor.

the connecting body formed on the volume material

Housing wall are supported.

The connecting body can in principle also consist of several

'ikale

Segments can be formed, in particular a ver

Division and/or horizontal division are possible. For example, depending on the manufacturing process, it can be provided that the connecting body is composed of an upper part and a lower part or a first side part and a second side part. A one-piece design of the connecting body is also suitable, with which the foot elements are then supported together on the housing wall

are therefore also connected to the housing wall.

The advantage of a one-piece design of the connecting body is that it is inseparable and preferably cannot be separated from the drain housing without being destroyed. In the case of a multi-part design, however, other types of production can also be considered, with the drain housing and connecting body being separable after dismantling the floor drain, for example in the course of a renovation, with a view to separate recycling

can be advantageous.

As already described above, the volume material can be provided to optimize the outer contour of the floor drain. In this context, according to a preferred embodiment of the invention, it is provided that the segmented

or particularly preferably one-piece connecting body

the shaping.

For example, the floor drain can initially be supported on a subfloor and secured, for example, by screws. The floor drain is usually connected to a sewer line and can also be embedded in a filling material applied to the subfloor. As is also known, for example, from the generic EP 3 848 522 A1, the floor drain can, for example, be embedded in a screed layer. However, EP 3 848 S22 Al suggests in this context that the housing wall is subsequently cut off at the appropriate height. Laying the screed with the initially protruding one

However, the housing wall is then difficult.

Against this background, the present invention is based on the knowledge that due to the height adjustment by means of the foot elements, the entire floor drain can already be arranged at a suitable height, so that the floor drain is then flush or essentially flush with filling material arranged on the side, for example in the form of a screed layer. can connect. A screed layer is listed purely as an example. Drywall materials such as rigid foam boards, for example, can also be used as filling material.

Pressboard or the like can be provided.

be provided in combination with one another.

Of course, the floor drain can also be used with other substructures, as are known, for example, from DE 20 2020 104 595 U1.

If the connecting body according to a preferred embodiment of the invention has a flat, web-shaped top side, a particularly precise and precise embedding in filling material is possible. After precise positioning of the floor drain using the foot elements, the filling material can then be poured up to the level of the flat top of the connecting body, whereby the corresponding filling material can be removed smoothly through the flat, web-shaped top with a trowel, a beam or an appropriate tool. The flat, web-shaped circumferential one

The top side can, for example, have a circumferential width between 30 mm and 60 mm, in particular between 40 mm and 50 mm. After positioning the floor drain during installation, the top can also be used as a type

Reference level can be provided.

In principle, it is also useful if the connecting body projects upwards to a certain extent over the drain housing. As described further below, it is then also possible, for example, to initially cover an upper side of the drain housing, at least in the area of a flow opening, with a protective plug, which protects the drain housing during transport and in particular during assembly. The protective plug can also be used advantageously for alignment in the horizontal direction

the protective plug has at least one marking

difficult or difficult to determine.

If the connecting body with its web-shaped circumferential top protrudes upwards relative to the drain housing, such a protective plug can also be arranged in such a way that it also does not protrude relative to the connecting body, which means the described embedding in a filling material,

for example screed, further facilitated and become one

leads to greater assembly safety.

It is particularly preferably provided that the connecting body surrounds the drain housing on the circumference, with the exception of an optional opening for a drain connection. The drain housing is then also enclosed on the circumference by the connecting body and separated from the environment. Particularly preferably, the connecting body can also be partially or completely below a bottom of the drain housing

extend.

A lateral opening for the drain socket must be provided if lateral, essentially horizontal drainage of the floor drain is intended. In the case of downward drainage, however, the drain housing can be completely enclosed on the circumference by the connecting body, but then of course there is a corresponding drain connection on the bottom of the drain housing,

an opening or the like must be provided.

In a particularly preferred combination of those described

Measures a connecting body is provided, which

&

The drain housing completely surrounds the underside and its circumference except for the opening for the drain socket and also protrudes upwards over the drain housing.

Since the foot elements are supported on the housing wall via the volume material that is different from the wall material, a spatial separation and decoupling also results in a particularly advantageous manner. The volume material can thus contribute to significantly improved insulation, in particular sound insulation, especially if - as explained below - the volume material has advantageous sound-absorbing properties

Has properties.

If the connecting body according to a particularly preferred embodiment of the invention also includes the base and the jacket

Covering the drain housing, better sound insulation is also achieved, for example the spread

is prevented or at least significantly reduced.

According to the previously stated preferred width of the web-shaped circumferential top, the connecting body can have a thickness of at least in sections on the circumference

for example, 30 mm to 60 mm.

The connecting body can, for example, have an approximately cylindrical shape. In this context, it should be noted that the invention is not limited to floor drains that are circular in cross section. For example, the floor drain can also have a rectangular or generally polygonal shape, so that the connecting body then has a cylindrical shape, for example

can have a rectangular or polygonal base area. The

limited.

The outer contour can also be designed differently from a circular shape with regard to assembly. For example, if rigid foam panels can be arranged around the floor drain, they are usually easier to cut along straight lines. For example, rigid foam panels can be adjusted to an octagonal outer contour by making straight cuts with an orientation in 45° increments

become,

The volume material preferably has a density of between 20 kg/m? {kilograms per cubic meter) and 200 ka/m*, especially between 50 kg/m®* and 100 kg/m? au£. The volume material is therefore comparatively light, which is important in view of the decoupling of the foot elements from the drain housing as well as the total weight of the floor drain and

material utilization is advantageous.

Within the scope of the invention, the volume material can, for example, have a volume between 0.5 dm (cubic decimeters) to 10 dm?, in particular 1 dm? up to 3 dm can be provided. This volume corresponds to that of the

The space occupied by the connecting body as a whole, the volume material can be used in particular in this context

made of an expanded plastic, suitable

Expanded plastics are known to those skilled in the art, whereby

ON SpTS We rigid foams based on polyurethane {PUR}, polystyrene foam£ (ZPS) and expanded polypropylene (EPP) can be considered. Depending on the assembly and application, it can be provided that only the dead weight of the floor drain, with any water it may contain, has to be supported by the volume material, with the floor drain also supporting the weight overall if the volume material is selected appropriately

a sanitary facility can contribute.

Of course there are others, especially natural and/or

inorganic and/or bio-based materials are considered.

If the volume material consists of an expanded plastic, the drain housing can also be foamed with the volume material according to a preferred embodiment. The drain housing can be foamed around, for example, in one

appropriate form.

Foaming creates a particularly intimate, positive and, if necessary, cohesive connection between

the wall material and the volume material, so that then

It can be provided that on the one hand the wall material and on the other hand the volume material consist of polymers that are different from each other. The wall material can be, for example, conventional thermoplastics such as polyolefins, in particular polypropylene (PP). The volume material that differs from this can be, for example, polystyrene, as listed above -Foams

or polyurethane foams can be provided.

weakened areas or the like,

In principle, it is also possible that the wall material on the one hand and the volume material on the other hand are based on the same polymer or on the same polymer group, such as polypropylene (PP), but differ significantly in their density due to the foaming of the volume material. With a uniform material

can then easily be recycled together.

According to a preferred embodiment of the invention, it is provided that the foot elements each have a sleeve body accommodated in the volume material. A steep spindle can be accommodated in the sleeve body. Furthermore, the adjusting spindle can then be rotatably supported on the underside on a support element.

The support element can be used to place the floor drain on a subfloor and to fasten it using screws, for example. The actual height adjustment is then carried out by rotating the adjusting spindle within the assigned sleeve body, for which this has a corresponding internal thread. The

For this purpose, the sleeve body can also be designed in several parts,

whereby, for example, a metallic insert with an internal thread is inserted into a base body made of plastic. The metallic insert can be used, for example, as a pressed-in threaded sleeve or as a form-fitting one

recorded threaded nut.

The foot elements can be arranged completely separately from one another and supported on the drain housing via the volume material. Alternatively, it is also possible for the previously described sleeve bodies to be connected to one another by a connecting ring. With such a connecting ring, a better distribution of force can be achieved, and advantages can also arise in terms of production due to the relative alignment of the sleeve bodies with respect to one another. Even if the sleeve bodies are then connected to one another by the connecting ring, all of the foot elements remain separate from the volume material

Drain housing separated and insulated,

According to a preferred embodiment of the invention, it is provided that the sleeve bodies are exposed at their upper end, with the adjusting spindles each having a tool holder accessible through the assigned sleeve body at their upper end. The tool holder can, for example, be designed as a slot, cross slot, hexagon socket or hexalobular socket, with an appropriate screwdriver then being operated by the tool holder

Sleeve body is possible. Measures can be planned as part of further training

ge, so that a height set in this way is fixed, besides

This also includes a self-locking thread, for example

a counter lock with an additional nut on the underside,

for example a knurled nut. The subject of the invention is also a floor installation according to claims 17 to 19 with the previously described

floor drain£f,

The invention is explained below using exemplary examples

Drawings explained. Show it:

Fig. 1 is a sectional view through one

floor drain according to the invention,

Fig. 2 is a detailed view of a section in one

cutting angle rotated by 45° compared to FIG. 1,

Fig. 3 shows the floor drain according to Fig. 1 in one

Perspective,

Fig. 4 shows the floor drain according to Fig. 3 with one not

volume material shown,

Fig. 5 shows the schematic representation of a step in the

Production of the floor drain,

6 shows the floor drain in an exploded view,

Fig. 7 shows the arrangement of optional spacers

height adjustment,

Fig. 8 shows a floor drain in a configuration in front of one

Assembly,

Fig. 9 Floor installation with the floor drain£.

1 shows a sectional view of a floor drain with a drain housing 2 having a housing wall 1 made of a wall material. The drain housing 2 has a known shape, as is known, for example, from the KA90 drain fitting from Franz Kaldewei GmbH & Co, KG

(see, for example, assembly instructions KA90, as of 10/2020

Franz Kaldewei GmbH & Co. KG),

According to the invention, the floor drain according to FIG. 1 has a volume material that is different from the wall material, which is around

the drain housing 2 forms a connecting body 3.

According to the view shown in Fig. 2 and rotated by 45° compared to the sectional plane in Fig. 1, it can be seen that the floor drain has height-adjustable foot elements 4

re

has, with initially only one in FIG

A”

Sleeve body 5 of the foot elements 4 is shown.

From a comparative view of FIG. 1 and FIG. 2 it can be seen that the foot elements 4 are attached to the housing wall via the volume material forming the connecting body 3

l are supported, so that there is a spatial separation.

While the drain housing 2 has a conventional thermoplastic as wall material, for example PP, ABS or PA, the volume material consists of expanded plastic with a density of between 20 kg / m? and 200 ka/m*, especially between 50 kg/m* and 100 kg/m*. Thanks to such a comparatively light foam, the foot elements 4 are decoupled from the drain housing 2,

which also results in particularly good sound insulation.

In Fig. 1 it can also be seen that the connecting body 3 formed from the volume material also extends below a bottom of the drain housing 2 and upwards with a flat, annular top 6 opposite the

Drain housing 2 protrudes.

3, the connecting body 4 surrounds the drain housing 2 on the circumference except for an opening for a drain connection 7, so that only a recessed upper region of the drain housing 2 is exposed due to the encapsulation with the connecting body 3.

When looking at Figures 1 to 3 together, this is also the case

It can be seen that the flat, web-shaped top 6 of the connecting body 3 accommodates the sleeve bodies 5 of the foot elements 4 in such a way that the sleeve bodies 5 are accessible from above. The web-shaped circumferential top can also be referred to as an annular top in the context of the invention, although the term annular is not used in a general sense

is limited to circular shape.

The exemplary embodiment shows a preferred embodiment in which the connecting body 3 is formed in one piece by foaming. In principle, however, there is no alternative to a multi-part design of the connecting body 3

excluded.

4 shows an example of the floor drain in a view according to FIG. 3, but for clarification the volume material is used as a connection of the foot elements 4 with the

Housing wall L is not shown, correspondingly

spatial separation of the foot elements 4 from the housing wall 1

particularly clearly visible.

The connecting body 3 not only decouples the foot elements 4 from the drain housing 2. The encapsulation of the drain housing 2 by the connecting body 3 results

also better insulation, especially soundproofing

towards adjacent materials and open spaces,

Furthermore, it is formed by foaming

Connecting body 3 also ensures optimal shape adjustment

Floor drain possible. For example, the flat top

6 - as further explained below - can be used to create a flush or substantially flush connection

to enable adjacent materials and structures.

5 shows by way of example that the connecting body 3 can be produced by foaming around the drain housing 2 in a foaming tool S having an upper mold half 51 and a lower mold half 82. For this purpose, the drain housing 2 can, for example, be held in the drain connection 7, whereby the sleeve bodies 5 of the foot elements can also be easily integrated by foaming. Figure 5 shows

as an example the floor drain formed in this way, whereby the

original position of the sleeve bodies 5 before foaming

is shown in dashed lines (see also Fig. 4).

The web-shaped circumferential top 6 of the connecting body 3 shown in FIG. 3 can, for example, have a width between 30 mm and 60 mm. The inner diameter exposed in between can, for example, be between 90

am and 250 mm, especially between 140 mm and 180 mm

be.

In Fig. 1 it can be seen that the connecting body 3 also has a thickness on the circumference that is approximately the width

the web-shaped, flat top 6 corresponds.

The residual water connection 8 is provided on the drain housing 2

is advantageously from the connecting body 3

surrounded, but can be exposed if necessary. For example, the residual water connection 8 can be easily connected with a knife or a comparable tool

be cut free.

Fig. 6& shows the floor drain and other components in an exploded view. It goes without saying that the connecting body 3 formed by overmolding the drain housing 2 is inseparably connected to the drain housing 2 and is only shown separately for clarity.

While only sleeve bodies 5 of the foot elements 4 are shown in Figures 1 to 4, Fig. 6 shows the complete foot elements 4, each consisting of the sleeve body 5, a nut 9 inserted into the sleeve body 5, one in the sleeve body 5 and the nut 9 included steep spindle

10 and one adjoining the adjusting spindle 10

Support element 11 are formed.

6 further indicates that the four foot elements 4 in the exemplary embodiment can optionally be connected by a connecting ring 12 shown in dashed lines, whereby a more uniform distribution of force can be achieved and the sleeve bodies 5 of the foot elements 4 can also be connected

the production relative to each other in a simple manner

can be positioned. In many cases, however, this is the case

Additional connecting ring 12 not necessary.

6 further shows a sealing arrangement 13, which has a Y-shaped branch between the drain housing 2 and a sanitary device shown below (see FIG. 9), for example in the form of a

Shower tray 14, which enables position adjustment,

6, the support elements 11 have holes 15 so that the support elements 11 and thus the entire foot elements 4 can be fixed on a subfloor 16

{see Fig. 9).

Through the steep spindles accommodated in the sleeve bodies 5

,

10 height adjustment is possible, with the adjustable

Height can correspond almost to the length of the sleeve body 5. Je

However, depending on the installation situation, this may happen

Height adjustment alone is not sufficient.

Against this background, FIG. 7 shows an example of the arrangement of spacers 17, which can also be arranged several times one above the other. The height of the spacers 17 can be chosen so that it is slightly lower than the adjustment range of the Steli spindle 10. E58 is then a continuous height adjustment by adding a spacer 17 or several spacers 17

possible.

In Fig. 7 it can also be seen that the adjusting spindles 10 have a tool holder 18 at their upper end, this tool holder 18 being mounted

State through the assigned sleeve body 5 from above

SS

is accessible. It goes without saying that the steep spindles 10

are rotatably connected to the respective receiving element 11,

In particular, to improve sound insulation, the support elements 11 and/or the spacers 17 can also be used

ADDITIONAL

layers of an insulating material may be provided,

Fig. 8 shows the floor drain, which is provided with a protective plug 19 for transport and assembly, which covers an upper side of the drain housing 2. In the exemplary embodiment shown, the protective plug 19 also extends partially on the top © of the

2

connecting body 3.

Alternatively, a smaller protective plug 19 can also be provided so that it does not go up over the connecting body

3 protrudes.

In Fig. 8 it is further indicated that between the protective plug 19 and the top 6 of the connecting body 3 sealing sheet material 20 of the sealing arrangement 13 is initially in

is arranged protected in a folded state.

Within the scope of the invention, it may be desirable that the height set by actuating the adjusting spindles 10 is secured during assembly. As an optional securing means, knurled nuts 21 are shown in FIG. 8 as further components of the foot elements 4, with which the adjusting spindle 10 is at the set height against the

Sleeve body 5 can be countered.

It can be useful if the knurled nuts 21 are included

a height adjustment first with a suitable one

E

Holding force the sleeve bodies 5 are held so that the knurled nuts 21 do not rotate with the adjusting spindle 10. A corresponding rotation inhibition can be effected, for example, by a flexible lip on the sleeve bodies 5, which fix the knurled nuts 21 on their circumference against rotation with the adjusting spindles, but whose holding force can easily be overcome by manually actuating the knurled nuts 21. An at least initial, releasable fixation is also possible using locking varnish, a releasable or separable one

Adhesive strips or the like possible.

Finally, Fig. 9 shows the previously described floor drain as part of a floor installation. The floor drain is arranged with the support elements 11 of the foot elements 4 on the subfloor 16 and fastened with screws 22, whereby the screws 22 can expediently be held by a dowel. The suitable type of fastening can be chosen by the person skilled in the art depending on the material of the subfloor 16, fixing can also be done, for example, using nails, self-tapping screws, adhesive, etc.

The floor drain is connected to a wastewater pipe 23 at its drain connection 7, the floor drain being embedded in a filling material 24 applied to the subfloor 16, for example a screed layer. The drain housing 2 is insulated from the environment in a particularly advantageous manner by the connecting body 3. This applies both to the support via the foot elements 4 and with regard to the filling material 24, which is attached to the

connecting body 3 connects,

Furthermore, it can be seen that the filling material 24 is flush or essentially flush with the flat top side 6 of the connecting body 3. After the floor drain has been correctly positioned using the adjustable foot elements 4, the filling material 24 can then be poured in at the appropriate height during assembly and if necessary

can be easily smoothed. cash distress

Furthermore, it can be seen that the factory-provided sealing sheet material 20 is integrated into a trough-shaped composite seal 253. The hardened filling material 24 serves as a base for the composite seal 25 and as a storage area for the shower tray 14 supported by strips 26, which in the exemplary embodiment is flush with a floor covering 27 made of tiles. In addition to the strips 26 shown as examples, other supporting elements and constructions also come into play

Consideration.

The drain opening of the shower tray 14 is connected to the floor drain via the previously described sealing arrangement 13, which has a Y-shaped branch, with the Y-shaped branch allowing a certain spatial tolerance in the horizontal and vertical directions during assembly

provided.

Claims (1)

Patent claims: 1. Floor drain with a drain housing (2) having a housing wall (1) made of a wall material and with foot elements (4) which are height-adjustable relative to the drain housing (2), characterized in that the foot elements {4} have a volume material different from the wall material on the Housing wall (2) are supported. A 2. Floor drain according to claim 1, characterized in that at least two foot elements (4) are connected together via a connecting body (3) formed by the volume material Housing wall {1} is supported. 3. Floor drain according to claim 2, characterized in that the connecting body (3) has a flat, web-shaped circumferential Top (6). 4, floor drain£ according to claim 2 or 3, characterized in that all foot elements (4) together via the connecting body (3) are connected to the housing wall (1). 5, floor drain according to claim 4, characterized in that the connecting body {3) surrounds the drain housing (2) on the circumference except for an opening for a drain socket (7}. 6. Floor drain according to claim 5, characterized in that the connecting body (3) below a bottom of the Drain housing (2) extends. 7. Floor drain according to claim 5 or 6, characterized in that the connecting body (3) at least on the circumference in sections has a thickness of 30 mm to 60 mm. 8, floor drain according to one of claims 1 to 7, characterized in that the volume material has a density between 20 kg/m? and 200 kg/m? having. 9. Floor drain according to one of claims 1 to 8, characterized in that the volume material consists of a expanded plastic. 10. Floor drain according to claim 9, characterized in that the drain housing (2) is foamed with the volume material. i1L. Floor drain according to one of claims 1 to 10, characterized in that on the one hand the wall material and on the other hand the volume material consist of different polymers. 12. Floor drain according to one of claims 1 to 11, characterized in that the foot elements (4) each have a sleeve body (5) accommodated in the volume material, an adjusting spindle (10) accommodated in the sleeve body (5) and an adjusting spindle (10 ) subsequent support element (11) exhibit. 13. Floor drain according to claim 12, characterized in that the sleeve body (5) is connected by a connecting ring {12} are connected to each other. 14. Floor drain according to claim 12 or 13, characterized in that the sleeve bodies (5) are exposed at their upper end, with the adjusting spindles (10) each being accessible at their upper end through the assigned sleeve body (5). Show tool holder (18). 15. Floor drain according to one of claims 1 to 14, characterized in that at least one top side of the drain housing (2). in the area of an inlet opening with one Protective plug (19) is covered. 16. Floor drain according to one of claims 1 to 15, characterized in that between 3 and 6 foot elements (4) are provided. 17. Floor installation with a subfloor (16) and a floor drain supported on the subfloor (16) according to one of the Claims 1 to 16, 18. Floor installation according to claim 17, wherein the floor drain is connected to a wastewater pipe (23). and wherein the floor drain is embedded in a filling material (24) applied to the subfloor (16). 19. Floor installation according to claim 17 or 18, wherein the drain housing (2) is connected to a drain opening Sanitary facility is connected. Vienna, March 8, 2023 by: | Haffner and Keschmann Godfather antjan wälte GmbH