EP4173531A1 - Floor level shower tray - Google Patents

Abstract

The invention relates to a shower base unit 1 comprising a base element 2 and a support 3. The base element 2 has a vertical thickness of at most 20 mm, at least at a first longitudinal end 22 over its entire transverse extent and at a first transverse end 23 over its entire longitudinal extent 15 mm at the most and has a gradient of at least 0.7%, in particular at least 1%, towards the drainage opening 20 on its upper side over an area of at least 3000 cm², with the floor element 2 having a support area , which extends horizontally outside the support surface and starting from the first longitudinal end 22 of the floor element 2 over at least 30%, in particular at least 40%, in particular at least 50% of its length in the longitudinal direction X towards the drainage opening 20 over its entire width and in the operating state of the shower tray device 1 is arranged horizontally completely outside of the support 3 and for support on an upper side 21 of a screed 6 which is arranged horizontally next to the support 3 in the operating state of the shower tray device 1 and runs parallel to the horizontal plane and is provided on the unfinished floor 5 while at the same time supporting the support 3 is formed on the subfloor 5.

Description

The invention relates to a shower tray device according to the preamble of claim 1 and a room floor in which such a shower tray device is integrated, and a method for installing a shower tray device in a room floor.

In order to implement showers, it is necessary to provide a shower floor on which a person can stand while showering and over which the water used for the shower can drain. It has been known for many decades to implement such a shower floor using a shower tray. While shower trays were originally designed in the manner of a tub, which has a horizontally running tub floor with a drain opening and tub walls extending vertically upwards away from it, typically 20 cm to 30 cm in vertical height, shower trays have recently been designed increasingly flatter, so that In modern shower trays, the shape of the tub is only slightly indicated and the walls of the tub only extend a few centimetres. The flatter design of modern shower trays not only serves to create a modern look for a shower, but also to make it easier to enter the shower. However, there are technical limits to the minimum overall height of shower trays on the one hand, a sufficient gradient towards the drain opening is to be provided over the largest possible area of the horizontal extension of the shower tray and, on the other hand, the shower trays have a considerable horizontal extension, usually of at least 80 cm x 100 cm or at least 90 cm x 90 cm and they should be designed to be as unyielding as possible over its horizontal extension and a robust support in relation to a subfloor on which they are arranged is required, which means a vertically thick overall structure and a contouring of the shower tray or its support that generates stability in the area of support, makes it necessary. In order to implement a shower floor that is accessible at floor level, special precautions must therefore be taken when using a conventional shower tray. Usually in this case the shower tray is installed as part of a shower tray device which has a support on which the shower tray is mounted. The carrier is usually installed on an unfinished floor, after which a supporting covering, which is usually and preferably realized as a screed, but can also be realized, for example, using a combination of wooden elements and filler, is applied around the carrier, which is so far vertically above the carrier protrudes as the shower tray extends beyond the support due to its vertical extension. However, such a procedure is complicated and error-prone because of the interlocking of different trades, since the upper side of the support covering has to protrude vertically over the support with a specifically provided offset. In addition, because of the arrangement of the shower tray with its top side next to the top side of the support covering, there is an increased risk of water penetrating between the shower tray and the support covering and onto the floor collects. Another alternative for realizing a shower floor that is accessible at floor level can be realized in that at least one section of the room floor of a bathroom is configured as a shower floor. For this purpose, during the realization of the supporting covering, within the vertical extent of which functional devices such as drain pipes and/or underfloor heating pipes or the like are often provided, and which can include an insulating layer, a drainage channel is provided in the supporting covering and the supporting covering is designed with a gradient towards the drain channel , so that the supporting surface can then be tiled or covered with a conventional floor covering, for example floor tiles, vinyl panels, a plastic floor cast or laid on the supporting surface, for example epoxy resin floor, or a cement-based covering, with the floor covering extending to the drainage channel. With this alternative to conventional shower trays, however, a sufficient gradient from all sides to the drain channel must be provided in the support covering, which is often not implemented adequately, and conventional floor coverings, especially the floor tiles often used as floor covering, tend to Shower floors get much more dirty than conventional shower trays, especially since limescale and other shower deposits can easily accumulate at the transitions between the floor tiles, especially in the joints.

The present invention is based on the object of providing a shower tray device, a support for a floor element of a shower tray device, a room floor and/or a method for installing a shower tray device in a room floor, with which at least one disadvantage is at least partially eliminated, which is the case with conventional manufacturing techniques of a shower floor.

As a solution to the problem on which the invention is based, the invention proposes a shower tray device with the features according to claim 1 .

The shower tray device includes a floor element. The floor element extends along a horizontal plane in a horizontal longitudinal direction with a length of at least 60 cm, in particular at least 80 cm, and in a horizontal transverse direction with a width of at least 60 cm, in particular at least 80 cm. Longitudinal and transverse directions are perpendicular to each other and span the horizontal plane. The floor element preferably has a width of at least 80 cm and a length of at least 100 cm, in particular at least 120 cm. The floor element preferably has a width of at least 90 cm, in particular at least 100 cm, and a length of at least 90 cm, in particular at least 100 cm. In one embodiment, the floor element has a width of at least 80 cm, in particular at least 90 cm, in particular at least 100 cm, and a length of at least 120 cm, in particular at least 140 cm. The floor element has a drainage opening within its horizontal extension. The drain opening extends vertically through the floor element and thus from its vertical upper side to its vertical lower side. Water that has reached the top of the floor element can be discharged downwards under the floor element through the drainage opening. The drainage opening is provided entirely within a horizontal drainage section of the floor element, which forms a substantial part of the horizontal extent of the floor element. It preferably forms at least 10%, in particular at least 20%, preferably at least 30% of the horizontal extension of the floor element and/or extends horizontally over at least 400 cm ² , in particular at least 600 cm ² , in particular at least 1000 cm ² and thus forms a correspondingly flat horizontal extension of the floor element. The drain section preferably forms an uninterrupted, closed peripheral edge around the drain opening; the drain section preferably extends in all horizontal directions over at least 3 cm, in particular at least 5 cm, away from the edge enclosing the drain opening, so that it surrounds the drain opening with a corresponding one forms a solid section running around the horizontal extension, within which, for example, a drain pot, as explained in more detail below, can be arranged on the underside of the floor element in a sealing manner around the drain opening. The drainage section preferably forms the supporting surface of the base element, which is explained in more detail below, horizontally outside the drainage opening. The floor element is preferably designed in the manner of a plate whose plate surfaces form the top and bottom of the floor element and whose narrow plate sides run vertically and connect the plate surfaces to one another. The floor element is preferably designed in the manner of a plate made of solid material, ie the plate volume of the plate is filled with the solid material. The solid material can be a mineral cast or a PU foam, for example.

According to a solution according to the invention, the floor element has a vertical thickness of at most 20 mm, in particular at most 15 mm, at least at a first longitudinal end over its entire transverse extent and at a first transverse end over its entire longitudinal extent. in particular less than 13 mm, in particular less than 12 mm, in particular less than 11 mm. In one embodiment, which can be particularly advantageously combined with the aforementioned one, the floor element has a vertical thickness of at least 5 mm, in particular at least 10 mm, at least at a first longitudinal end over its entire transverse extent and at a first transverse end over its entire longitudinal extent. The first longitudinal end defines an absolute end of the floor element with respect to the longitudinal direction, the first transverse end defines an absolute end of the floor element with respect to the transverse direction. Since the floor element has a correspondingly low vertical thickness at its first longitudinal end over its entire transverse extent, i.e. over its entire extent in the transverse direction, the floor element can be laid with its longitudinal end in a very flat floor covering that is laid on an unfinished floor, in particular on a the sub-floor applied supporting covering, which is in particular screed, are integrated, for example in a tile covering provided on a screed, whereby thanks to its small thickness it can merge into the adjacent floor covering essentially without any vertical offset. The same applies, of course, to the first transverse end. Particularly preferably, the floor element also has a correspondingly small vertical thickness over its entire length at its second transverse end, which is opposite the first transverse end in the transverse direction. This makes it possible to integrate the floor element at its two transverse ends and at the first transverse end adjacent to the rest of the floor covering in such a floor covering. In a particularly preferred embodiment, the floor element also has at its second longitudinal end, opposite the first longitudinal end, over its entire transverse extension correspondingly small vertical thickness, so that the floor element can also be integrated into such a floor covering at a distance from a room wall. Particularly preferably, the floor element has the same vertical thickness at its first longitudinal end as at its first transverse end and in particular at its second transverse end and in particular at its second longitudinal end. The maximum thickness over the entire transverse extent at the respective longitudinal end or the maximum thickness over the entire longitudinal extent at the respective transverse end is taken into account. The floor element also has a gradient of at least 0.7 on its upper side over an area of at least 0.3 m ² , in particular at least 0.5 m ² and in particular over at least 70%, in particular at least 80% of the entire surface extent of its upper side %, in particular at least 1%, in particular at least 1.2% towards the drain opening. The slope is preferably formed over an area of the upper side that is at least 70%, in particular at least 80%, of the entire horizontal extension of the floor element. Within the entire area mentioned, in which the mentioned gradient is provided, there is therefore a gradient with a minimum gradient as specified above at each surface point, which forces water that reaches the surface point on the upper side to flow towards the drain opening. Due to the gradient, the surface point can direct the water, for example, to another surface point of the surface, which directs the water in the direction of the drain opening due to the gradient provided on it. According to a solution according to the invention, the floor element also has a contact area which extends horizontally outside the run-off section and, starting from the first longitudinal end of the floor element, over at least 30%, in particular at least 40%, in particular at least 50%, in particular at least 60% of the length of the floor element in the longitudinal direction towards the drain opening over the entire width of the floor element. The support area is horizontally completely outside the run-off section. The floor element preferably consists of the run-off section and the support area. When the shower tray device is in its intended operating state, the support area is preferably designed to support it on an upper side of a screed that is arranged horizontally next to the drain section and runs parallel to the horizontal plane and is provided on the unfinished floor when the shower tray device is in the operating state. Of course, the support area is preferably also designed to be supported on the upper side of the shower tray device when it is in operation, also with regard to another support covering that is arranged horizontally on a subfloor next to the drain section and has an upper side that runs parallel to the horizontal plane. When used as intended, the floor element is thus simultaneously supported with its contact area via the supporting covering, in particular screed, on the unfinished floor and extends with its run-off section next to the supporting covering and preferably overlaps horizontally with the unfinished floor, but is offset vertically to it. The run-off section is thus preferably free above the unfinished floor and therefore not supported on the supporting surface, so that in the operating state explained further functionalities can be provided within the run-off section, while the floor element is supported over a large area on the supporting surface by means of its contact area. When used as intended, the support covering is generally advantageously arranged according to the invention, preferably exclusively horizontally, outside the run-off section; in one embodiment, it extends but still horizontally overlapping the runoff section but spaced vertically from it so that the runoff section does not overlie it and the support deck is positioned with a vertical portion adjacent to the runoff section such that a vertical portion of the support deck horizontally overlaps the support area and entirely outside of the horizontal extension of the support covering is arranged. In general, an arrangement of sections or areas or other geometric structures next to each other in the present description defines in particular such an arrangement that the sections or areas or other geometric structures are not arranged overlapping and thus extend outside the other section or Area or other geometric structure are arranged, with a definition of a juxtaposition in a specific direction or plane then of course on the lack of overlap in this direction or plane is turned off. A juxtaposition here includes in particular an arrangement directly next to each other, unless otherwise stated. In the operating state, the floor element preferably rests on the described upper side of the described support covering over its entire contact area. For example, a free space provided between the unfinished floor and the underside of the run-off section horizontally next to the supporting surface and horizontally next to the support area can be used to arrange a drain pot in the free space and to seal it around the drain opening within the run-off section and to connect it to the underside of the floor element, and/or that in the free space a carrier, in particular as explained below, is provided, via which a support surface formed on the underside of the floor element is opposite the Subfloor is supported vertically. Of course, thanks to its above-mentioned suitability, the support section can also be used when the support area is supported on a mounting frame or carrier, which in turn is supported on the unfinished floor and is arranged horizontally next to the drain section and its upper side when the shower tray device is in operation , on which the support area is supported, runs parallel to the horizontal plane. The support area is designed in particular in such a way that it is designed for said support on the upper side of the mentioned support layer or top side of the mentioned mounting frame when the shower tray device is in the operating state and the top side of the support layer or mounting frame is horizontally directly adjacent to the drain section.

The drainage opening is particularly preferably at least 15%, in particular at least 20%, in particular at least 30%, in particular at least 40% of its entire transverse extent at a distance from at least one transverse end of the floor element, in particular at least from the first transverse end of the floor element. This particularly preferably applies to each transverse end and thus not only to the first transverse end but also to the second transverse end lying opposite the first transverse end in the transverse direction, with the transverse ends delimiting the base element in the transverse direction. Such a spacing from the respective transverse end is particularly advantageous if the floor element in the operating state extends in the transverse direction over at least 5%, in particular at least 10% of its entire transverse extent in the transverse direction with its contact area, starting from the respective transverse end towards the drain opening and/or in Transverse direction to the respective transverse end extends beyond a carrier explained in more detail below. The The inventors have surprisingly found that the spacing of the drainage opening from the respective horizontal end of the floor element can contribute to the stability of the floor element in a particularly advantageous manner. It must be taken into account here that the drainage opening is in any case already at a considerable distance from the first longitudinal end before the first longitudinal end due to the spacing of the drainage section. The drainage opening is generally preferably spaced apart from the first longitudinal end by at least 60%, in particular at least 70%, of the longitudinal extent of the base element, ie its length in the longitudinal direction. The greater robustness of the floor element due to the spacing of the drain opening from the respective horizontal end results from the fact that due to the spacing, a continuously slight gradient can be provided starting from the respective transverse end to the drain opening. This is particularly relevant with regard to the gradient formed from the respective transverse end to the drain opening. Because, of course, the drain opening ends with its upper end at a specific vertical height, which is defined by the minimum required gradient over the distance of the drain opening from the horizontal end furthest away from the drain opening. Especially in configurations of the floor element in such a way that the floor element has a greater length than width, the length preferably being at least 1.2 times, in particular at least 1.5 times the width, a correspondingly greater gradient from the respective Transverse end may be provided towards the drain opening, so that starting from this respective transverse end, the vertical height of the drain opening can be reached. This also applies in particular when the drain opening is closer to the second longitudinal end than to the first longitudinal end, which is the case for the Installation and optics is advantageous. Thus, the drainage opening is preferably spaced longitudinally from the longitudinal end by a distance which is at least four times, in particular at least five times, its distance in the longitudinal direction from the second longitudinal end. However, providing too great a gradient can lead to a thin thickness of the floor element result, which is detrimental to stability. Accordingly, the spacing of the drainage opening from at least one of the transverse ends, in particular from both transverse ends, is particularly advantageous. In general, the drainage opening preferably extends in each horizontal direction by less than 20%, in particular less than 15%, of the width and/or length of the floor element.

Thanks to its configuration, the shower tray device according to the solution described enables a novel realization of a shower floor that is accessible at ground level. The inventors have recognized that the provision of a flat, large-area floor element is particularly advantageous for this purpose, which has a horizontally large-area support area, via which it can be supported on an upper side of a screed running parallel to the horizontal plane. Due to the small thickness and the flat contact area, the floor element can be integrated very easily into a conventional floor covering, such as a tiled covering. At its first longitudinal end and at its first transverse end, the floor element has a thickness such as that of conventional floor tiles.

Correspondingly, the floor element can easily be integrated by a tiler in a tile covering that is applied to a flat supporting covering, such as screed, without having to provide a special supporting structure for this and without having to specifically coordinate the screed with the Floor element must be prepared. For example, it is no longer necessary to provide a gradient in the screed or other supporting covering. Rather, the floor element itself, when it is arranged with its entire contact area on a screed with its upper side parallel to the horizontal plane running across it, forms a gradient towards the drain opening, so that a sufficient proportion of the upper side of the surface element has a directional component in the vertical direction has towards the drain opening. In the prior art, it was previously assumed that it was not possible to provide a correspondingly large floor element which at the same time had a correspondingly small thickness at the longitudinal and transverse ends and integrally formed the necessary gradient and could be supported over a large area on such a screed . Up to now it has been assumed that in such a case, due to the gradient to be provided integrally in the floor element, the thickness of the floor element becomes so small with increasing distance from the longitudinal end, at which it already has a small thickness, that the floor element is no longer sufficiently stable can be ensured. The invention overcomes this prejudice in that a correspondingly large bearing area encompassed by the floor element is provided for bearing on a screed or other supporting covering and a run-off section encompassed by the floor element is provided next to the bearing area. Because the drain section is provided next to the support area and is therefore not intended to be placed on the supporting surface, the floor element within the run-off section can have a geometry that is decoupled from the support requirement on the supporting surface, for example a greater thickness than within the support area, which ensures sufficient stability and a sufficient gradient the upper side can be realized over the entire horizontal extent of the floor element. In a particularly preferred use of the shower base unit, in which the shower base unit is integrated into a room floor comprising an unfinished floor, a supporting covering and in particular a floor covering adjoining the first longitudinal end and the first transverse end, in particular tiled covering, the floor element is only thereby positioned in relation to the unfinished floor supported that it rests with its contact area on the screed and is supported by this on the unfinished floor and possibly also rests with its support surface explained below on the supporting surface of a carrier as explained below and is supported by this on the unfinished floor. Of course, the contact area preferably does not lie directly on the supporting covering but is connected to the floor covering via a connecting layer made of a connecting compound, which is preferably a hardening connecting compound, for example a tile adhesive layer with tile adhesive as the connecting compound, with the connecting layer usually having a layer thickness of less than 10 mm, in particular less than 5 mm, in particular less than 3 mm. The large contact area also ensures that seepage water is effectively prevented from entering between the supporting surface and the floor element. While in conventional floor-level shower base installations, in which the floor element of the shower base device is provided horizontally next to the support covering, so that it can lie vertically with an adjoining floor covering, in particular an adjoining tile, at a height, a seal between the floor element and the adjoining floor covering, in particular adjoining tile, usually takes place by means of a silicone strip and in the event of any damage to the silicone strip Leakage water can penetrate unhindered between the supporting covering and the floor element, can flow off vertically onto the unfinished floor and can collect on it, because of the large horizontal contact area when installing a shower tray device according to the invention, if the floor element is insufficiently sealed against the adjacent floor covering, this is only possible via a capillary effect in the transition area between Connecting mass and floor element is still possible for water to enter between the supporting surface and the floor element, but this can then only take place horizontally. Such water ingress is significantly reduced compared to installing conventional shower tray facilities. A further advantage of the shower tray device according to the invention is that new design options are available for the floor element and when the floor element is installed, a person stepping onto the floor element can have a different sense of space. Because the floor element can be supported over a large area on the supporting surface via the contact area, a cavity effect, which easily occurs with conventional shower trays, can be avoided, so that stepping on the floor element is very similar to stepping on a tile or floor element arranged on the supporting surface. similar to another floor covering provided on the supporting covering, which can result in a high-quality stepping sensation. With the shower tray device according to the invention, this can Floor element designed in the manner of a tile and perceived by a user as part of the tile covering. At the same time, the floor element can avoid the disadvantages of conventional floor-level showers, which are realized by providing shower channels in a tiled covering as explained above, since on the one hand no special precautionary measures have to be taken when installing the supporting covering, in particular no specific precautions the shower channel has a slope that is turned off, and secondly because the large floor element is easy to clean. The floor element is particularly preferably manufactured in one piece. Particularly preferably, the floor element has an uninterrupted smooth surface on its upper side.

In a particularly preferred embodiment, the shower tray device has a support. At a vertical end, the support has a support surface with which it is arranged in contact with a support surface formed on the underside of the floor element when the shower base device is in operation. The support surface is formed within the horizontal extent of the run-off section and thus of the run-off section of the floor element and is therefore exclusively arranged outside of the support area. Correspondingly, the supporting surface, with which the carrier bears against the supporting surface for carrying the floor element, is arranged exclusively outside of the supporting area. At its opposite vertical end, the carrier has a standing surface for supporting it on a subfloor or for setting it up on a subfloor. The vertical and the horizontal are in relation to the operating state, which defines a certain arrangement of the components of the shower tray device, and thus in particular the support and the floor element, for all Components of the shower base device defined. The carrier is thus designed to support the floor element in the operating state on an unfinished floor on which it is supported or set up with its standing surface. The carrier can stand directly with his standing surface on the unfinished floor or indirectly, for example on an insulating layer applied to the unfinished floor. Correspondingly, the supporting surface can rest directly or indirectly on the supporting surface of the carrier. In one embodiment, the insulating layer is encompassed by the unfinished floor, so that the unfinished floor comprises a load-bearing floor, eg comprising concrete, and an insulating layer lying on the load-bearing floor. In one embodiment, an insulating layer is provided on the unfinished floor in addition to the unfinished floor. In one embodiment, the standing surface of the carrier in the operating state is arranged exclusively outside the horizontal extent of the support area or exclusively horizontally outside and thus next to the support covering. In one embodiment, the carrier is designed to be supported on the unfinished floor by being placed on the screed or other supporting covering or to be set up on the unfinished floor as a result. The carrier can have, for example, a plate-like laying section for laying on the screed or other supporting covering and a holding section, offset horizontally to the laying section, for supporting the floor element outside of the supporting covering, with the laying section preferably having a thickness of less than 3 mm, in particular less than 2 mm has, so that it can be easily integrated into a tile adhesive covering and no too large corresponding recess on the underside of the floor element needs to be provided, which would be accompanied by a corresponding reduction in thickness of the floor element. The carrier preferably extends at an intended use of the shower tray device vertically from the unfinished floor to the support surface of the floor element, wherein the carrier can include a stand that can be set up directly on the unfinished floor. The supporting surface and the bearing surface are preferably congruent and are therefore preferably completely in contact with one another in the operating state. The contact area lies horizontally outside of the support surface and thus in the operating state of the shower tray device outside of the horizontal area of the shower tray device in which the carrier rests with its supporting surface on the floor element in order to carry the floor element as intended on an unfinished floor on which it can be placed with its standing surface is. During such intended use, the carrier bears at least part of the weight force exerted by the floor element vertically in the direction of the unfinished floor and correspondingly also at least part of the weight force of a person who is standing on the floor element when the shower tray device is used as intended. The carrier is preferably designed to transfer a vertical weight force of at least 200 N from the supporting surface to the standing surface without deformation via the interaction of the supporting surface and supporting surface, so that it can hold a corresponding weight resting on its supporting surface over a subfloor without deforming , on which it is set up with its base. In the operating state of the shower tray device, the support area is preferably arranged horizontally completely outside the carrier, at least completely outside the support surface and the supporting surface, and in particular in the operating state for support on an upper side of a top surface that is arranged horizontally next to the carrier in the operating state of the shower tray device and runs parallel to the horizontal plane screed or other intended for the subfloor Supporting covering formed with a simultaneous support of the carrier on the unfinished floor. When used as intended, the floor element is thus simultaneously supported with its contact area via the supporting covering, in particular screed, on the subfloor and with its support surface via the carrier on the subfloor, whereby thanks to its above-mentioned suitability it can of course also be used in one application , in which the support area is supported on a mounting frame, which in turn is supported on the unfinished floor and is arranged horizontally next to the support when the shower tray device is in operation and whose upper side, on which the support area is supported, runs parallel to the horizontal plane. In one embodiment, the carrier can also be designed in such a way that it carries the floor element alone, without the floor element having to rest with a contact area on the supporting covering. The support area is designed in particular in such a way that it is designed for said support on the upper side of the mentioned support layer or top side of the mentioned mounting frame when the shower tray device is in the operating state and the top side of the support layer or mounting frame is horizontally directly adjacent to the support. Particularly preferably, the support area is designed for support on the upper side of the supporting surface or mounting frame, which is vertically at the same height as at least a section of the supporting surface, in particular the entire supporting surface of the carrier. The inventors have recognized that the provision of a flat, large-area floor element is particularly advantageous which, on the one hand, has a horizontally large-area contact area over which it rests on an upper side of a supporting covering running parallel to the horizontal plane can be supported, and on the other hand has a support surface outside the support area, via which it can be supported on a carrier. Thus, at the same time, a correspondingly large bearing area for bearing on a support covering is provided and a support surface for supporting on the carrier of the shower tray device is provided on the floor element. By providing the support surface and the corresponding support, a targeted support of the floor element via the support on the unfinished floor can be realized in addition to the standard laid support covering, and at the level of the support surface the floor element can be designed in any geometric configuration in coordination with the intended support , whereby its sufficient stability can be obtained. The provision of the described embodiment, in which the shower tray device has a support, has proven particularly useful in the case of very large floor elements whose horizontal extent is at least 1 m ² and/or whose drain section has a horizontal extent of at least 0.1 m ² , in particular at least 0. 2 m ² has been found to be particularly advantageous. The provision of further supports, which are arranged horizontally outside of the support and act on the floor element on support surfaces in order to support it, is no longer necessary according to the invention thanks to the possibility of resting on the screed, but can also be a matter of course, especially when retaining existing structures , additionally be provided.

In one embodiment, the carrier has a carrying element and at least one standing element. The stand element can be designed as a stand, for example. The support element forms the support surface of the carrier, and the at least one base element forms the base of the Carrier and is designed to be supported on the unfinished floor and for holding the support element spaced from the unfinished floor. The support element is generally preferably designed in one piece, ie produced directly as a one-piece coherent component. In one embodiment, the carrier comprises several mounting brackets as stand elements, which have a laying section for laying on the bearing covering and a holding section offset vertically and horizontally thereto, on which the bearing element can be laid and which thus forms a load surface for carrying the bearing element. The laying-on section particularly preferably has a vertical thickness of less than 2 mm. The brackets can, for example, have a step-like course, with the laying-on section being connected to the holding section via a vertical step. With a corresponding implementation of the carrier, the standing element is thus supported via the supporting covering on the unfinished floor. The support element of the support is designed to correspond to the stand elements, so that it is held at a vertical distance from the unfinished floor via the stand elements, in the exemplary embodiment described by placing it on the holding sections of the stand elements designed as holding brackets, so that, for example, there is still a building-side drain pipe between the support element and the unfinished floor and/or a drain pan of the shower tray device can be arranged and/or the underside of the floor element can run vertically below the supporting covering. In another embodiment, at least some of the stand elements, in particular all stand elements, are designed as feet that can be set up directly on the subfloor with a foot section and are thus supported directly on the subfloor and not supported on the subfloor by means of the supporting covering. Such feet can, for example, a Have holding section, via which they are connected to the support element. This connection of the feet to the support element allows the support element to be held at a corresponding vertical distance from the unfinished floor by the feet. In general, at least some of the stand elements, in particular all of the stand elements, of the support are connected to the support element within the edge region of the support element, which is explained in more detail below, and which forms at least a section of the support surface of the support, resulting in particularly high stability of the support surface due to direct support by means of the stand elements can be guaranteed. It is generally preferred that the feet, in particular with their foot sections, form the standing surface of the carrier, with the standing surface overlapping horizontally with the support surface. In general, the support preferably has a plurality of support elements designed as feet, which are arranged horizontally spaced apart from one another at a point on the support element that is assigned to them. All of the stand elements of the carrier are preferably designed as such stand feet. The feet are preferably each arranged in a horizontal end section of the support element, in particular arranged in the edge region explained here. The horizontal end section of the support element is a section of the support element that forms an end of the support element in a specific horizontal direction and extends from this end in the specific horizontal direction by less than 20%, in particular less than 15%, in particular less than 10% of the extent, ie the length, of the support member in that particular horizontal direction.

Each of the feet is preferably designed to be adjustable in height for setting a spacing of the support element from the unfinished floor at precisely the point on the support element which is assigned to the respective base and at which the respective base is arranged on the support element. Due to the height adjustability of the feet, their vertical length can be adjusted between the foot section with which they are set up on the unfinished floor and the holding section with which they are connected to the support element. Correspondingly, the vertical adjustability of the support element relative to the unfinished floor is ensured by the height adjustability, while the support element is positioned horizontally to the unfinished floor by each of the feet with its location assigned to the respective foot. It must be taken into account here that each foot is connected to the support element at its assigned point and is connected to the unfinished floor at a specific point, in particular is set up on the unfinished floor. Generally preferably, each base has a base section with which it can be set up on the unfinished floor. In general, each base has a holding section by which it is held on the support element. A passage for a fastening means is preferably provided in the foot section, with which the foot can be fixed in position on the unfinished floor. For example, the base can be fixed in position on the unfinished floor by means of a screw and dowel connection. When installing an embodiment of a support according to the invention or a shower base unit according to the invention or in an embodiment of a method according to the invention for installing a shower base unit in a room floor, the feet of the support are generally preferably first fixed to the unfinished floor and the support element is then aligned vertically, in particular by actuation of the feet. The feet are particularly preferred in each case from their Height-adjustable top, in particular from the top of the carrier. In general, the feet are preferably designed in such a way that they can each be brought into different length states, in which they each have a different vertical length. Due to their different vertical lengths, a different distance can be set between the foot section and the holding section of the respective foot and thus a height adjustability, of course in relation to the vertical, can be provided. In each of its length states, each of the feet has a defined vertical extension length between its holding section and its foot section, and this extension length is different in each length state, so that changing the length state of the base changes the distance of the support element at the horizontal point is generated, on which the base is arranged or attached. The feet are preferably designed in such a way that they maintain their vertical length in any length condition under a vertical compressive load with a force of 100 N, in particular with a force of 200 N. Particularly preferably, the feet are designed in such a way that they retain their vertical length in any length condition under a vertical tensile load with a force of 50 N, in particular 100 N. This can be ensured, for example, by providing a threaded connection within each base or a detachable latching connection within each base. A vertical compressive load is such a force load that works towards a reduction in the vertical length of the feet, and a vertical tensile load is such a force load that works towards an increase in the vertical length of the feet. By allowing the feet to their adjusted vertical Keeping the length both in the case of pressure and tensile loads can, on the one hand, make it possible to carry a vertical load-bearing capacity when the load-bearing element is loaded from above via the feet, which results in the pressure load mentioned; Supporting covering, in particular screed, after installation of the carrier on the unfinished floor and attachment of the feet to the unfinished floor, whereby the said tensile load can arise, the support element floats. Generally preferably, the feet each comprise a plurality of parts, in particular a foot element for setting up on the unfinished floor, a holding element for holding on the support element and a connecting element for connecting the foot element to the holding element. The foot element can, for example, form the explained foot section and the holding element the explained holding section of the respective base. The base is fixed to the support element via its holding section. The holding element, which forms the holding section, can be provided integrally in the support element or can be a component separate from the support element. Thus, the supporting element and the standing element can be partially integrated into one another. However, at least part of the standing element is a component that is manufactured separately from the supporting element, so that the supporting element and standing element are designed as separate components that are manufactured at least partially independently of one another. In the preferred configuration of the standing element as a standing foot comprising holding element, connecting element and foot element, at least foot element and connecting element are preferably components that are produced separately from the supporting element, in particular separate components that can be detached from the supporting element. In one embodiment, the standing element and the supporting element are components that are completely separate from one another. are preferred the different length states of the respective base adjustable in that at least some of the parts of the base are moved towards each other. The length states can preferably be adjusted by moving the connecting element relative to the holding element and/or relative to the foot element. It has been found to be particularly advantageous that the connecting element is designed as a threaded rod, the length states being adjustable by rotating the connecting element relative to the base element and/or relative to the holding element. The foot element and/or holding element preferably have a thread that corresponds to the threaded rod, so that the different length states can be adjusted by turning the threaded rod. In one embodiment, only one of the foot element or holding element, in particular the holding element, has such a corresponding thread, whereas the other of the foot element and holding element only has a pivot bearing at a single vertical height for supporting the threaded rod outside of its thread.

In one embodiment, the shower tray device has a peripheral frame with a horizontal extension, with the drain section, and thus the support surface preferably encompassed by the drain section, of the floor element being arranged completely within the horizontal extension of the frame in the operating state and the frame being completely below the frame in the operating state Floor element is arranged. The frame thus serves to define a horizontal section in which the run-off section for realizing the operating state is arranged. The frame can thus serve as a placeholder during the application of a supporting covering, such as screed, on the unfinished floor, since the frame reliably provides sufficient leaves horizontal space free for the drain section. In one embodiment, the frame is surrounded or formed by the carrier, in particular by the support element. In one embodiment, the frame is formed by a frame element whose vertical height can be adjusted, in particular cut to size. Vertical height adjustability may be provided through expert choice of a suitable material, such as choosing a cuttable material and/or providing adjustability geometries, such as break lines. The adaptability is to be provided in such a way that the vertical height can be easily changed by a fitter on a construction site using conventional hand tools after the frame element has been fixed to a subfloor and, in particular, a supporting covering has been applied around the frame element to the subfloor, In particular, such an adaptability is ensured that the frame element can be shortened, starting from a state in which the supporting covering around the frame element has been applied to the subfloor and the frame element protrudes vertically over the subfloor, so that it no longer extends vertically over the unfinished floor protrudes. For example, the frame element can be provided in addition to the carrier or supporting element and only serve as a placeholder during the application of the supporting covering. For example, the frame element can be made of plastic, for example TPE foam. The frame element can be designed, for example, in the manner of a cuboid, in particular in the manner of an open box, so that it can have sufficient robustness even if it is made of a soft, cuttable material, so that the supporting covering can be applied right up to the frame element, without deforming the frame member, with the design of the frame element in the manner of a box that is open vertically at the top, the ability to insert the support element into the frame element can be particularly beneficial. In general, the frame in the operating state preferably does not protrude vertically beyond the supporting lining, and thus ends vertically below the upper side of the supporting lining or ends vertically flush with it. In general, the frame preferably has a projection arrangement on at least one of its outer sides below the upper side of the carrier for hooking to the support covering, in particular on at least the outer side, which in the operating state points in the same direction as the first longitudinal end of the floor element, and in particular also at least on the outside facing in the same direction as the first transverse end of the floor member in the operative condition. In particular, the operating status is taken into account. The outsides are horizontal outsides. The provision of such a projection arrangement in an embodiment in which the frame is formed by the support element itself has proven to be particularly advantageous. The projection arrangement or the hooking of the projection arrangement to the supporting covering, for example screed, can lead to additional stabilization of the carrier in the supporting covering surrounding it. By forming the projection arrangement below the upper side of the carrier and thus below the carrying surface of the carrier, the projection arrangement can be brought into engagement with the carrier lining in a simple manner without impairing the carrying function of the carrier.

In one embodiment, the support element has an edge area and a central area lying horizontally within the edge area and surrounded by the edge area. For example, the edge area can form the frame explained above. The edge area forms with at least a section of the wing, in particular the entire wing, on its upper side. The edge area protrudes vertically over the center area. Thus, the floor element can preferably be placed with its support surface on the edge area and within the edge area, namely within the horizontal extent of the central area, extend vertically downward beyond the edge area. A considerable thickness of the floor element can thus be provided within the central region, which can be particularly advantageous for the stability of the floor element. The edge area and the central area are generally preferably connected to one another in one piece. Generally preferably, the edge area merges into the central area via a step, ie via a vertical step. The edge area particularly preferably has a width of at least 20 mm, in particular at least 30 mm, with which it runs around the central area. The width is thus a width in the horizontal direction, and the width is thus a ring width with which the edge area encloses the central area like a ring. The upper side of the edge region preferably lies in one plane over at least 50%, in particular at least 70%, in particular at least 80%, in particular at least 90% of its entire horizontal extension. The edge region preferably completely forms at least that portion of the supporting surface which, in the operating state, lies at the same vertical height as the upper side of the supporting lining adjoining the carrier. The edge area preferably has a width of at least 20 mm, in particular at least 30 mm, over at least 50%, in particular at least 70%, in particular at least 80% of its circumferential length, with which it runs around the central area; the edge area preferably runs around the central area without interruption with such a width. A configuration of the edge area as the central area with a corresponding Width all around has several advantages. On the one hand, this can ensure particularly good support of the floor element by the edge area. In the operating state, the floor element preferably rests on the edge area over at least 50%, in particular at least 80%, in particular 100% of its horizontal extent. In addition, the edge area can ensure a particularly easy to implement and reliably sealing connection of a sealing collar to the support element and in particular to a drain pan of the shower tray device, which is connected to the support element in a fluid-conducting manner. In one embodiment, the shower tray device has a sealing collar which, closed around the central area, is sealingly connected to the edge area and which, closed around the central area, protrudes horizontally by at least 20 mm, in particular at least 30 mm, beyond the edge area. The sealing sleeve can be a coherent component which can be permanently fastened to the support element on several sides or which has a fastening device corresponding to the support element, or the sealing sleeve can be implemented by subsequently applied sealing strips which, for example, can be removed after the support has been set up on the unfinished floor and Application of the support covering to the edge region with the support covering, and for example a wall adjoining a horizontal end, for example the second longitudinal end, can be glued in an overlapping manner. In one embodiment, a fleece layer is provided on the upper side of the edge area, running horizontally around it, for gluing on a sealing tape. Such a fleece layer is particularly advantageous in order to ensure a reliable sealing connection of a sealing tape to the edge area and thus to the wearer. The fleece layer has preferably has a width of at least 20 mm, in particular at least 30 mm, over which it is horizontally closed all the way around and is therefore designed as a “non-woven layer ring”. Preferably, the fleece layer runs horizontally closed around the drain opening and/or around the inlet of the drain pan. A further fleece layer or other reinforcement layer is particularly preferably provided on the underside of the support element within the same horizontal region over which the fleece layer extends on the upper side. The additional fleece layer or other reinforcing layer thus extends within the edge area of the support element, based on its horizontal extension. The further non-woven layer or other reinforcement layer can ensure that the support element is not subsequently influenced during its production process by the application of the non-woven layer provided on the upper side. The inventors have recognized that by providing a fleece layer on the upper side and another fleece layer or other reinforcement layer during the production process of the support element, it can be particularly reliably ensured that the support element has a determinate shape after the production process has ended. Because the sealing sleeve is connected to the edge area in a sealing manner and also protrudes horizontally around the edge area, i.e. it extends on the horizontal side of the edge area facing away from the central area, the sealing sleeve can be connected particularly easily to a supporting layer or a supporting layer adjoining the supporting element. connect an adjacent wall sealingly, so that water ingress at the transition from the supporting layer or an adjacent wall to the supporting element can be effectively prevented.

In one embodiment, the edge region in the operating state is at least 50 mm, in particular at least 10 cm, from at least one horizontal end of the floor element, in particular at least from the first longitudinal end and in particular from the first transverse end, in particular from each transverse end of the floor element. The edge region is particularly preferably spaced at least from the first longitudinal end of the floor element by at least 10 cm, in particular at least 30 cm, in particular at least 50 cm. The spacing of the edge area can ensure, on the one hand, that the floor element with the contact area rests over a large area on the support covering in the operating state. In addition, especially in connection with the above-described advantageous provision of a sealing sleeve, the overall length of the sealing connection between the support element or carrier and the adjacent floor covering can be kept as short as possible. In contrast to conventional shower tray devices, a sealing line is not required over the entire length of the edge of the floor element, but it is sufficient that the seal is only implemented at the transition from the carrier to the floor covering and thus from the edge area to the floor covering. The provision of a support element with an edge region designed as explained has turned out to be generally advantageous according to the invention. In the operating state, the edge area is generally preferably at the same vertical height as the supporting covering adjoining the edge area. A floor covering, for example tile covering, can thus be laid in a particularly simple manner over the transition between the edge area and the supporting covering, without any stability risks arising.

In general, the support element is preferably made of plastic, in particular by means of an injection molding process or made of plastic foam, in particular PE foam. As a result, the support element can be manufactured particularly cost-effectively and yet sufficiently robustly. In general, the standing elements of the carrier are also made of plastic, in particular by means of an injection molding process. Generally preferably, the support element has a vertical thickness of at least 50 mm over at least 20%, in particular at least 30%, in particular at least 50%, in particular at least 70% of its entire horizontal extent, with which it extends between its longitudinal and transverse ends. in particular at least 60 mm. This thickness can be formed, for example, by a rib structure or by solid material. With a correspondingly thick design of the support element, sufficient stability of the support element can be ensured in a particularly simple manner. The support element preferably has a stepped profile on its upper side and/or on its underside, so that despite the provision of a correspondingly large thickness, it leaves sufficient space for further components of the shower tray device, for example for a drain pan.

In one embodiment, an absolute vertical lower end of the floor element formed in a first tenth of the longitudinal extent of the floor element forming the first longitudinal end is vertically offset by less than 3 mm from a third and/or fourth tenth of the longitudinal extent of the floor element, measured starting from the first longitudinal end Floor element trained offset absolute vertical lower end of the floor element. More preferably, the absolute vertical lower end in the first tenth of the length of the floor member is less than 3mm from that of the third and fifth tenth of the longitudinal extension of the floor element is offset, preferably by less than 3 mm, from the vertical lower end of the floor element formed by the third, fourth and fifth tenth of the longitudinal extension. The absolute vertical lower end is the lower end of the respective tenth of the longitudinal extension, which forms the absolute lower end of the floor element over the entire flat extension of the tenth, and thus over the entire width of the floor element within the respective tenth of the longitudinal extension. Said tenths of the longitudinal extent, ie the first, third and in particular fourth and in particular fifth tenths, preferably all lie within the horizontal extent of the support area. The support area can, of course, have a certain contouring on its underside, as is usual with tiles, for example, so that it can be better connected to the supporting covering by means of a tile adhesive. The floor element can also have, for example, a sealing sleeve which is connected to the support area in a watertight manner or has a fluid-carrying connection to the drainage opening, which forms the underside of the floor element and which can entail a certain contouring of the underside of the floor element. However, since the vertical offset over a correspondingly large area of longitudinal extension of the floor element, starting from the first longitudinal end, is always very small, the floor element can be supported sufficiently continuously on the screed over its longitudinal extension, so that the floor element can be reliably placed on a horizontal plane with its upper side extending screed can be supported non-destructively, in particular via a tile adhesive layer that has a maximum vertical thickness of 5 mm. Correspondingly, the floor element can easily be integrated as a single component in a floor covering, in particular a tiled covering.

In one embodiment, an absolute vertical upper end of a transverse center of the floor element is in the first longitudinal end forming the first tenth of the longitudinal extension of the floor element with a vertical offset to an absolute vertical upper end of the transverse center in the fourth tenth and/or in the fifth tenth of the longitudinal extension of the floor member which is at least twice the offset by which the absolute vertical bottom end of the floor member formed within the first tenth is spaced from the absolute vertical bottom end of the floor member formed within the fourth and/or fifth tenth. With the tenths, it is generally based on the fact that the first tenth forms the first longitudinal end and the further tenths each follow from the first longitudinal end at an increasing distance in the longitudinal direction according to their numbering to the first tenth. The transverse center in each case designates the center of the floor element along the transverse direction. In the preferred embodiment, a height gradient of the transverse center is thus realized on the top of the floor element, which provides a sufficient gradient towards the drain opening, since there is a corresponding vertical offset between the vertical height of the transverse center in the different tenths of the longitudinal extent, while on the underside of the Offset is kept low, so that the floor element can be placed on a conventional flat supporting surface and can form the gradient integrally on its upper side.

In one embodiment, the offset between the in the first longitudinal end forming the first tenth of the longitudinal extent of the floor element, to the absolute vertical lower end of the floor element formed in the third tenth of the longitudinal extent of the floor element, less than a quarter of the offset between that formed in the first tenth of the longitudinal extent of the floor element absolute vertical lower end of the floor element to the absolute vertical lower end of the floor element formed in the sixth tenth and/or seventh tenth and/or eighth tenth of the longitudinal extent of the floor element. In one embodiment, the offset between the absolute vertical lower end of the floor element formed in the first tenth of the longitudinal extent of the floor element and the absolute vertical lower end of the floor element formed in the fourth tenth of the longitudinal extent of the floor element is less than one fifth of the offset between the first tenth of the longitudinal extent of the floor element formed absolute vertical lower end of the floor element to the eighth tenth of the longitudinal extension of the floor element formed absolute vertical lower end of the floor element. The embodiments mentioned can in particular be combined with one another. Thus, in the described embodiment, there is little or no offset between the absolute lower ends within the first tenths of the longitudinal extent starting from the first longitudinal end, whereas there is a significant vertical offset between the absolute vertical lower ends as the longitudinal extent progresses. For example, the vertical offset formed between the absolute vertical lower ends in the first tenth and in the third tenth and/or in the first tenth and in the fourth tenth can be less than 3 mm, in particular less than 2 mm, in particular less than 1 mm, while the vertical offset between the absolute vertical lower ends, which are formed in the first tenth and in the sixth tenth and/or in the first tenth and in the eighth tenth, is at least 5 mm, in particular at least 7 mm, in particular at least 10 mm amounts to. In the particularly preferred embodiment according to the invention, the offset can be kept particularly small at the level of the contact area, which preferably extends over the specified first and third and in particular fourth tenths, while there is then a significant offset on the underside. Correspondingly, the vertical thickness of the floor element can increase significantly along the longitudinal direction up to the drain opening outside of the support area. In this way, a sufficient thickness and thus stability of the floor element outside of the support area can be ensured, while the floor element outside of the support area continues to form a gradient towards the drainage opening on its upper side.

In one embodiment, the support area extends horizontally outside the run-off section, in particular outside the support surface, starting from the first transverse end of the floor element over at least 10%, in particular at least 20%, in particular at least 30% of the width of the floor element over the entire length of the floor element in the Transverse direction towards the drain opening. Particularly preferably, the support area also extends horizontally outside the run-off section, in particular outside the support surface, starting from the second transverse end of the floor element, which is opposite the first transverse end in the transverse direction, over at least 10%, in particular over at least 20% of the width of the floor element over the entire length of the Floor element in the transverse direction towards the drain opening. Starting out by extending the support area from the first transverse end and in particular starting from the second transverse end over a considerable extent in the transverse direction over the entire length of the floor element, the floor element with the support area can also over a considerable area of its transverse extent at the first and in particular at the second transverse end on the said horizontal flat surface of said screed as explained above. As a result, a particularly simple integration of the floor element into a floor structure can also be made possible at the transverse end or ends, and other advantages explained above with reference to the first longitudinal end can also be implemented, for example inhibiting the ingress of seepage water and avoiding a cavity Effect when entering the floor element. In general, the contact area is preferably only formed on the first longitudinal end and the first transverse end and in particular the second transverse end of the floor element, but not within one of the two transverse ends at a distance of at least 20% of the width in the transverse direction, on the area opposite the first longitudinal end in the longitudinal direction second longitudinal end of the floor element. This can have the particular advantage that the floor element can be installed with the second longitudinal end on a wall without resting on a screed strip that runs on the wall and is difficult to implement in the floor of the room. For example, the drainage opening can be provided in a longitudinal end area of the floor element that forms the second longitudinal end. For example, this longitudinal end area can be supported by the carrier in relation to an unfinished floor and thus comprise a section of the support surface. For example, in a transverse region of its second longitudinal end that is symmetrically distributed around the transverse center and extends over at least 30%, in particular extending continuously over at least 40%, in particular at least 50% of the width, held exclusively over the carrier and outside the transverse area over the transverse ends adjoining the second longitudinal end in a room floor. In one embodiment, in which the drainage opening is at a distance from the second longitudinal end, the support area extends horizontally outside the drainage section, in particular outside the support surface, starting from the second longitudinal end of the floor element over at least 10%, in particular over at least 20%, in particular over at least 30% of its length over its entire width in the longitudinal direction towards the drain opening. In embodiments in which the support area extends from the first transverse end and in particular from the second transverse end of the base element towards the drainage opening, the absolute vertical lower end of the base element formed in a first tenth of the transverse extent of the base element forming the respective transverse end is preferably vertical an offset of less than 3 mm from an absolute vertical lower end of the floor element, measured starting from the respective transverse end and/or third tenth of the transverse extension of the floor element, is also preferably an absolute vertical upper end of a longitudinal center of the floor element in which the respective Transverse end forming the first tenth of the transverse extent of the floor element with a vertical offset to an absolute vertical upper end of the longitudinal center in the second and/or third tenth of the transverse extent of the floor element, which is at least twice an offset between within the first tenth and within the second and / or third tenth formed absolute vertical lower end of the floor element, it is also preferably provided that the offset between the absolute vertical lower end of the floor element formed in the respective transverse end forming the first tenth of the transverse extent of the floor element to the absolute vertical lower end of the floor element formed in the second and in particular in the third tenth of the transverse extent of the floor element is less than a quarter of the offset between the im first tenth of the transverse extent of the base element to the absolute vertical lower end of the base element formed in the fourth and/or fifth tenth of the transverse extent of the base element.

In its operating state, the shower tray device is generally preferably designed for integration into a tile covering, which is applied to the upper side of the screed or other supporting covering provided on the unfinished floor and is at least adjacent to the first longitudinal end, preferably adjacent to the first longitudinal end and the first transverse end. more preferably adjacent to the first longitudinal end, the first transverse end and the second transverse end. It is preferably provided that the tile covering has the same vertical height adjacent to the respective end of the floor element as the respective horizontal end of the floor element.

In one embodiment, the run-off section and/or the support surface is arranged exclusively in a longitudinal end area of the floor element outside of its support area, which extends over less than 50%, in particular less than 40%, in particular less than 30% of the length of the floor element and on a dem first longitudinal end in the longitudinal direction opposite second longitudinal end. By providing the run-off section or the support surface In the longitudinal end area, the carrier can be installed particularly easily on the unfinished floor, in particular on a wall, after which a supporting covering, in particular screed, can be applied around the carrier and the floor element can be placed on the supporting covering and the carrier. The drainage opening is particularly preferably arranged exclusively within the longitudinal end area, particularly preferably also independently of the preferred arrangement of the drainage section or the support surface explained above, exclusively within a longitudinal extension area of the floor element, which extends from the second longitudinal end over less than 30%, in particular over less than 20% of the length of the floor element. This makes it particularly easy to route water from the drain opening to a drain that is located near the second longitudinal end, which is particularly advantageous when the shower tray device is installed in a room floor in which the drain and thus the second longitudinal end are close to a wall are arranged. The carrier that is preferably provided preferably extends in the longitudinal direction, starting from the drain opening over a significant portion of the longitudinal extension of the floor element towards the first longitudinal end, in particular starting from the drain opening over at least 10% of the length of the floor element, if a floor element is provided with a length of over 120 cm, preferably over at least 20%, in particular at least 30% of the length in the longitudinal direction away from the drain opening towards the first longitudinal end. The provision of the drain opening in the longitudinal end area mentioned is advantageous for connection to a drain and for shower comfort, since the drain opening is provided at the edge and therefore not within a commonly used standing area of the floor element. The provision of the drain opening in the The longitudinal end area mentioned is made possible in a particularly advantageous manner by the particularly preferred embodiment, in which on the one hand a support area extending towards the second longitudinal end is provided on the first longitudinal end opposite the second longitudinal end and on the other hand a support is provided outside the support area, the geometry of which specifically the geometry of the floor element is coordinated so that the floor element can extend over the carrier with a considerable longitudinal extension and considerable vertical thickness. In general, it is particularly preferable for the drainage opening to be arranged within the horizontal extension of the carrier. At this point it should be pointed out that the carrier can be configured in any way in order to fulfill its carrying function. In one embodiment, the carrier has a plurality of feet spaced apart from one another, which are arranged distributed horizontally around the drain opening. In one embodiment, the carrier has a housing with a housing wall that encloses the drain opening. Preferably, the housing wall is closed around the drain opening and/or is designed to form several feet. The housing wall preferably forms the supporting surface on its upper side and the standing surface on its underside. In general, the carrier preferably comprises a drain pot which has an inlet connected to the drain opening to carry water and an outlet which can be connected to a waste water line and which is connected to the support surface when the shower tray device is in operation, preferably in one piece. For example, the carrier can have a housing with a housing wall, the housing integrally forming the drain pan. For example, the carrier can have feet that are connected to the drain pan in the operating state, which is a component that is separate from the feet is trained.

In one embodiment, the underside of the floor member has a first portion formed by the support area and a second portion longitudinally disposed between the drain opening and the support area, the second portion being offset vertically downward relative to the first portion . The second section is particularly preferably offset vertically downwards by at least 3 mm, in particular by at least 5 mm, relative to the first section. The second section is preferably formed by the drain section. Particularly preferably, the underside has a vertical offset outside of the support area, with which it transitions from the first section into the second section in relation to the longitudinal direction. The projection can be designed in a step-like manner, for example, so that the underside forms a vertical step downwards during the transition from the first section to the second section. In general, the first section can merge into the second section via a contour that has a component running in the vertical direction. The provision of a first section and a second section of the underside makes it possible to provide a greater thickness of the floor element within the horizontal extension of the second section, which is thus formed outside of the support area, whereby the floor element is sufficiently robust with the formation of a gradient up to the drain opening can. The preferably provided support surface of the floor element particularly preferably extends at least in sections between the first and the second section of the underside of the floor element and/or within the second section of the underside. Particularly preferably, the top within the first Section has a lower gradient along the longitudinal direction than in the second section. Slope along the longitudinal direction refers to the slope of the upper side along the longitudinal direction with respect to the vertical. Of course, the gradient leads to the drain opening. The floor element particularly preferably has a greater vertical thickness in the second section than in the first section. Generally preferably, the second portion is further formed transversely between the first portion and the drain opening. The underside preferably transitions from the first section into the second section with the stated offset both with respect to the longitudinal direction and with respect to the transverse direction. Preferably, the second section encloses the drainage opening horizontally, preferably continuously closed, and preferably the underside with the mentioned step, circumferentially surrounding the drainage opening, preferably continuously closed, transitions from the first section into the second section. The upper side preferably has a smaller gradient along the transverse direction within the first section than in the second section.

In one embodiment, the underside of the floor element has a third section arranged between the first section and the second section of the underside of the floor element, which is at the same vertical height as the first section and in particular forms at least a section of the support surface that is preferably provided, in particular forms the entire support surface. In the operating state, the third section of the underside of the floor element preferably rests on the edge area that is preferably provided, with the edge area corresponding to a Section of the preferably provided wing or the wing of the carrier forms. Thus, the support surface of the floor element generally preferably extends at least in sections at the same vertical height as the underside of the floor element in the first section of the underside of the floor element formed by the bearing area. As a result, the installation of the floor element on a room floor or a support covering provided on the room floor can be particularly favored by means of the carrier. Particularly preferably, the second section of the underside of the floor element has a smaller horizontal extent than the central area of the support element, so that the floor element can be displaced horizontally relative to the carrier or to the support element of the carrier, while its third section rests on the edge area and thus at least one Section of the wing or the wing rests as a whole. Since the second section of the underside of the floor element is vertically offset from the first and the third section, the second section thus protrudes vertically downwards over the edge area or the bearing surface formed by the edge area or the section of the bearing surface formed by the edge area . Thus, when the floor element rests with its third section on the edge area, it can only be displaced horizontally relative to the support element until it rests against the edge area with the vertical step formed between the first and second or third and second section. However, since the second section has a smaller horizontal extent than the central area, there is a certain amount of play between this step delimiting the second section of the underside and the edge area, so that a certain displaceability of the floor element relative to the support element is made possible. This is a readjustability of allows horizontal position of the floor element when it is placed on a carrier that is anchored or fixed in position on the unfinished floor. The offset explained is preferably provided between the third section and the second section, whereas the first section and the third section run at the same vertical height. Preferably, the third section encloses the second section horizontally and continuously closed all the way around. The first section preferably encloses the third section horizontally in a continuous, closed manner.

Generally particularly preferably, the floor element has a stiffening structure, for example a reinforcement and/or a fiber insert, at the transition between the first and the second section. The third section explained above is particularly preferably provided between the first section and the second section, with the floor element having the stiffening structure at the transition between the third section and the second section. The stiffening structure is a structure that increases the breaking strength of the floor element. For example, the floor element can essentially be made of plastic, for example a polymer or PU foam, or the floor element can essentially be designed as a cast mineral tile. The floor element thus essentially consists of a base material, which is responsible in particular for the look and feel of the floor element, especially on its upper side. The stiffening structure is embedded in the base material. For example, the stiffening structure can include reinforcement with metal wires, in particular a metal mesh. For example, the stiffening structure can include glass fibers. Particularly the stiffening structure is preferably only provided locally and not over the entire horizontal extent of the floor element at the transition between the first and second section. The inventors have recognized that precisely in the transition between the first and second section, in particular between the third and second section, the design of the floor element results in only a small thickness of the floor element, so that the floor element has a higher susceptibility to breakage in this area in particular , whereas precisely because of the vertical offset between the first and second section and the associated possible vertical thickening of the second section, a higher breaking strength can already be given in the second section because of the greater thickness. The stiffening structure particularly preferably extends over the entire horizontal area of the floor element in which the floor element has its minimum vertical thickness. In one embodiment, the stiffening structure extends over the entire horizontal extension of the floor element. In one embodiment, the floor element is designed as a layered structure element that has a plurality of layers that are arranged vertically one above the other. Each of the layers preferably extends over at least 50%, in particular over at least 70%, in particular over at least 90%, in particular over 100% of the horizontal extension of the floor element. For example, the layers differ in at least one mechanical property, in particular hardness, breaking strength, tensile strength and/or surface quality. As a result, a floor element can preferably be provided in a favorable manner, which has the required geometric dimensions, load-bearing capacity and upper side properties. For example, at least one of the layers be designed as a paint layer, mineral cast layer, injection-molded plastic layer and/or fiber layer. In one embodiment, the gradient formed on the upper side is at least predominant within the support area along the longitudinal direction from the first longitudinal end to the drain opening and in particular along the transverse direction from the first transverse end to the drain opening and in particular along the transverse direction from the second transverse end to the drain opening. in particular formed entirely by reducing the vertical thickness of the floor element within the area over which the slope is formed, starting from the vertical thickness provided at the first longitudinal end, first transverse end and second transverse end, respectively. The gradient is thus largely formed by reducing the vertical thickness. Since the slope is formed by reducing the vertical thickness provided within the horizontal extension of the named surface, the underside of the floor element can have a constant height profile within the support area over the longitudinal extension and in particular transverse extension of the support area in its vertical height.

In one embodiment, the floor element has a greater vertical thickness at its second longitudinal end, which is opposite the first longitudinal end, than at its first longitudinal end. As a result, the floor element can be particularly robust at its second longitudinal end, and when the floor element is arranged with its second longitudinal end on a wall, this can have the effect that as little water as possible used for showering reaches the wall. The inventors have recognized that at the second longitudinal end, but outside of the transverse ends adjacent to the second longitudinal end, when installing the floor element with the second longitudinal end on a wall does not need to be placed on the thickness of conventional tiles. Particularly preferably, the upper side has a greater mean slope in the longitudinal direction from the second longitudinal end to the drain opening than from the first longitudinal end to the drain opening.

In one embodiment, the shower tray device comprises a drain pan with an inlet and an outlet. In the operating state, the inlet carries water, in particular in alignment with the outlet opening of the floor element, and is arranged under the floor element for receiving water flowing off vertically downwards through the outlet opening. In one embodiment, a seal surrounding the drain opening is provided, which ensures sealing of the base element against the drain pot surrounding the drain opening in the operating state. In any case, the inlet to the drain opening is arranged in the operating state in such a way that water that enters the drain opening from the top of the floor element is guided by it to the inlet of the drain pot, which is arranged on the underside of the floor element. The drain is designed to be connected to a drain pipe on the building side, preferably for draining water into the drain pipe, which has reached the drain pot via the drain opening and the inlet connected to it in the operating state. The drain pot particularly preferably has an odor barrier between the inlet and the outlet. The drain pan is particularly preferably arranged horizontally exclusively within the drain section of the floor element. The drain pot is preferably fastened to the underside of the base element in a continuous, closed manner around the drain opening in a sealing manner.

In one embodiment, the shower tray device has a connection unit which is arranged on the underside of the base element and which, in the operating state, connects the drain opening to the drain pan in a fluid-conducting manner in such a way that any water that emerges from the drain opening on the underside of the base element flows to the inlet of the drain pan to be led. The connection unit is thus designed to ensure that water which emerges from the drain opening on the underside of the floor element is guided to the inlet of the drain pan. In one embodiment, the connection unit is formed by the carrier or at least in the operating state is attached to the carrier independently of the floor element, in particular fixed in a fixed position. In one embodiment, the connecting unit is formed by the support element of the carrier explained or is attached to the support element of the carrier, in particular fixed in a fixed position, at least in the operating state independently of the base element. The connecting unit preferably extends predominantly, in particular exclusively, on the underside of the floor element. In the operating state, the connecting unit preferably encloses the drainage opening circumferentially closed or is connected to the drainage opening in an uninterrupted sealing manner on a circumferential inner side thereof. In one embodiment, the connection unit and the floor element are designed to correspond to one another in such a way that the water flow is ensured over a horizontal displacement area of the floor element relative to the connection unit. The floor element can thus be arranged in different horizontal positions relative to the connecting unit over a displacement range, with water being guided from the drain opening to the inlet of the drain pot in each of these positions through the connecting unit is guaranteed. The displacement range preferably corresponds to the horizontal range explained above, within which the floor element can be displaced horizontally relative to the carrier, while its third section rests on the edge area and the second section is surrounded by the edge area. As a result, the shower tray device can be installed particularly easily and at the same time particularly expediently in a room floor, since on the one hand the floor element can still be changed in its horizontal position relative to the carrier due to the displacement area, while the carrier is already fixed in position on the unfinished floor, whereas over the displacement area It is always ensured that in every horizontal position of the floor element relative to the carrier within the displacement range, the drain opening is reliably sealed and fluid-carrying connected to the drain pot arranged vertically under the floor element. The base element is particularly preferably movable relative to the connection unit, starting from the operating state, while the connection unit remains connected to the drain pan in an unchanged manner. For example, the base element can be horizontally movable relative to the connection unit over the displacement range, while the connection unit remains in the same position relative to the drain pan, with the connection unit being connected in a sealing manner to the inlet of the drain pan and in every position of the base element over the displacement range water flow guaranteed. Starting from the operating state, the base element can preferably be removed vertically from the connection unit, while the connection unit remains connected to the drain pan in an unchanged manner. Thus, the floor element, for example, for maintenance or installation purposes, from the Connection unit and the drain pot are removed, in particular solely by a vertical relative movement of the base element relative to the connection unit, while the connection unit remains connected to the drain pot unchanged. The water-carrying connection between the drain opening and the drain pot by means of the connection unit during the installation of the floor element is preferred, starting from a state in which the connection unit is already connected to the drain pot, but the floor element is still removed from the connection unit and not connected to it, solely because of this realized that the bottom element is placed vertically with its underside on the connection unit. The inventors have recognized that the embodiments described can have the particular advantage that during the realization of a room floor or during the installation of a shower tray device in a room floor in a first step in the process, in which a supporting covering is applied to an unfinished floor, the connection unit can be connected to the drain pan in a sealing manner, whereby the essential sealing has already taken place, after which the water-carrying connection between the floor element and connection unit can be established by simply placing the floor element on the connection unit, in particular at the same time as placing it on the support covering and in particular a support for the shower tray device, can be guaranteed. The support element is particularly preferably designed as a water-carrying component which includes the connection unit. As a result, any water that emerges from the drain opening on the underside of the floor element can be taken up by the support element in the operating state and guided to the inlet of the drain pan. In particular, the support element to ensure a water flow of be formed its edge area to the inlet of the drain pan. Especially with the preferred provision of a sealing collar, which is connected to the edge region and the adjoining support covering in the operating state, a particularly reliable water flow in a room floor from the support covering adjoining the support to the inlet of the drain pan can be ensured.

In one embodiment, the shower tray device has an annular seal which, in the operating state, is arranged between the underside of the floor element and the connection unit and which seals the floor element around the drainage opening from the connection unit. The ring seal can ensure in a particularly reliable manner that, in the operating state, water that emerges from the drain opening on the underside of the floor element is routed as directly as possible to the connecting unit and through this to the drain pan. The ring seal is preferably made of a plastic, in particular an elastic plastic. The ring seal is preferably fixed in position either on the base element or on the connecting unit as the two components that interact to conduct water and, in the operating state, is movably arranged relative to the other of the two components that interact to conduct water, i.e. to the connecting unit or to the base element. In one embodiment, at least either the bottom of the floor element or the top of the connecting unit has a planar sealing area that extends horizontally beyond the ring seal, with the ring seal sealingly abutting against the planar sealing area in every possible position of the floor element within the displacement area. In particular, the ring seal has in each different position of the floor element relative to the Connection unit hold a different position relative to the planar sealing area. Preferably, the other of the two water conduction components discussed above has the planar sealing portion so that the ring seal can slide along the planar seal portion of the other of the water conduction components while being fixed to the one water conduction component. The ring seal can be designed, for example, as a separate ring seal or as a molded ring seal. The ring seal can be designed to be continuously closed around the drain opening or have small interruptions so that seepage water can be drained off. The ring seal preferably runs around the drainage opening over at least 70%, in particular at least 80%, in particular at least 90% of its circumference.

In one embodiment, the connecting unit has a socket element which, in the operating state, is sealingly connected to the inlet of the drain pan by a connecting seal. The connection seal can be, for example, a radially or axially acting ring seal. In one embodiment, the connecting seal is a component separate from the drain pot and connecting unit, in another embodiment it is integrated in the drain pot or in the connecting unit, for example as a seal integrated integrally in the respective component by injection molding, for example by moulding. The connecting seal is particularly preferably designed in such a way that it ensures a completely closed, sealing circumferential seal around the clear cross section of the connecting piece element, so that water can pass between the connecting piece element and the drain pan is prevented. In the operating state, the connecting piece element preferably protrudes into the inlet of the drain pan and is sealed off from this by the connecting seal. In one embodiment, the support element comprises the socket element. In any case, the socket element is preferably fixed, in particular fixed in position, on the support element at least in the operating state. In particular, the support element can be designed as a plastic part that forms an integral part of the connecting piece element. In another embodiment, the socket element is a component that is separate from the support element and is connected to the support element in the operating state, in particular is connected in a sealing manner. In one embodiment, the support element forms the planar sealing area. In one embodiment, the connecting unit has a flange running around the drain opening, which forms the planar sealing section and is sealingly connected to the socket element or is encompassed by the socket element, whereby the planar sealing section and thus the water-bearing connection between the drain opening and access, which is tolerant to horizontal play, is formed of the drain pot is particularly easy to implement. The ring seal can, for example, be fixed in a fixed position on the underside of the floor element or in a fixed position on the upper side of the flange. In one embodiment, the shower tray device comprises a drainage box, which forms the support and which is arranged with its horizontal extension in the operating state completely outside the support area of the floor element. The drain box has a housing which at least in sections, in particular completely, forms the supporting surface and the standing surface of the carrier that is preferably provided. The drain box, in particular the housing of the drain box, preferably forms the drain pot with the inlet and with the drain. Particularly preferably has the bottom element has the explained vertical offset of its underside within the horizontal extension of the carrier, in particular within the horizontal extension of the drain box that forms the carrier. The housing particularly preferably has a housing wall which horizontally encloses a housing interior, with the base element resting with its support surface on the housing wall when the shower tray device is in operation and being vertically offset downwards on its underside, starting from the housing wall towards the housing interior. The offset is preferably at least 3 mm, in particular at least 5 mm, in particular at least 7 mm, in particular at least 10 mm. The offset can be formed by the above-explained offset of the underside of the floor element. The housing wall can enclose the housing interior horizontally uninterrupted or horizontally interrupted. With an uninterrupted enclosure of the housing interior, the housing wall can form the wall of the drain pan. The housing wall is particularly preferably designed to correspond to the base element in such a way that the base element has an elevation on its underside which, in the operating state, is surrounded horizontally by the housing wall and in particular by the two transverse ends of the housing interior which are opposite in the transverse direction and are defined by the housing wall and by the is spaced apart from each other in the longitudinal direction by less than 5 mm, in particular less than 3 mm, in particular less than 1 mm. As a result, the relative position of the drain box and floor element with respect to the horizontal can be simply and precisely predetermined in the operating state. In general, the support surface preferably runs on both longitudinal sides and on both transverse sides outside of the housing interior. Generally preferably, the support surface runs along the transverse direction over at least 30%, in particular at least 50%, in particular at least 70% of the width of the floor element, particularly in the explained preferred embodiment with the drain box at both longitudinal ends outside the housing interior. The support surface particularly preferably runs in the longitudinal direction over at least 20%, in particular at least 30% of the length of the floor element, in the preferred embodiment of the drain box described preferably on both transverse sides outside the housing interior.

When the drain box is provided, the housing of the drain box is generally preferably designed to carry water and forms the inlet and outlet of the drain pot. Particularly preferably, the shower tray device comprises a sealing sleeve which, in the operating state, is connected to the drain pan and/or the housing of the drain box in a sealing manner and for resting on the support covering with a horizontal extension beyond the first longitudinal end of the floor element when the bearing area of the floor element is supported formed on top of the backing. When the shower tray device is used as intended, in which it is integrated in a room floor, the sealing collar is connected to the drain pan or the drain box in a sealing manner and extends horizontally beyond the floor element, in particular at least at its first longitudinal end and first transverse end, in particular at all horizontal ends of the floor element. Correspondingly, when the support area is supported on the upper side of the supporting covering of a room floor, the sealing sleeve can first be placed on the upper side of the supporting covering and sealed with it are connected and the contact area is supported via the sealing sleeve on the top of the supporting lining. The sealing collar can provide additional security to prevent any ingress of seepage water into the supporting surface. Particularly preferably, the sealing collar is designed for sealing contact with a vertically running wall arranged at the first longitudinal end, which is opposite in the longitudinal direction, second longitudinal end of the floor element. Correspondingly, the sealing sleeve can be arranged on the wall with its horizontal area, over which it extends beyond the second longitudinal end, and in particular can be connected to it in a sealing manner. This can ensure a particularly reliable watertight transition from the wall to the outlet of the drain pan or drain box, which can be particularly effective in preventing water from getting onto the unfinished floor at the transition from the wall to the floor element.

In one embodiment, the floor element is designed as a cast mineral tile or as a plastic tile. A cast mineral tile is a cast tile made from a mixture of minerals and plastics. Such a cast mineral tile has been known in the prior art for decades. Such cast mineral tiles have the particular advantage that they can also be easily produced in complex three-dimensional shapes and can be integrated particularly well into a tile covering, both visually and haptically. In addition, such mineral casts are easy to maintain. If the floor element is implemented as a plastic tile, it can also be produced, for example, using a plastic mold, which can also be used to easily produce complex three-dimensional shapes.

For example, the floor element can be designed as a PU foam plastic tile. As a result, an inexpensive and robust plastic tile that is visually and haptically appealing can be provided. As explained above, the floor element is particularly preferably produced in the manner of a plate made from a solid material made of cast mineral and/or plastic and/or ceramic. In one embodiment, the floor element is made of steel enamel. In one embodiment, the floor element has a multi-layer design. The floor element particularly preferably comprises a hardened casting compound, in particular a plastic compound, in which ceramic particles are preferably embedded, which forms the upper side of the floor element. The floor element can have, for example, a base body on which the casting compound is applied. In one embodiment, part of the floor element is realized in that at least a section of its contact area is produced directly by casting casting compound onto the supporting covering.

In one embodiment, the floor element is designed in such a way that it can be cut to a shape whose horizontal boundary lies within the support area, the floor element in the cut shape being suitable for realizing the operating state of the shower tray facility and thus the shower tray facility with the shape cut to the shape Floor element can be used in its operating state as explained here. The embodiment described makes use of the special property of the floor element of the shower device according to the invention, that the floor element can be arranged over its run-off section away outside of the support covering or that its support surface can preferably be supported on the support and at the same time over its Support area can be supported on a support covering, in particular a screed, so that the shape of the floor element can be adapted to the spatial conditions for the realization of a room floor with the shower tray device. This can be particularly advantageous in particular for the implementation of renovations and also for the cost-effective production of the shower tray device, since the floor element can be produced over a large area and can be cut to size depending on the desired design. The floor element tailored to the shape thus has only part of the contact area of the original floor element, which can be referred to as the original floor element, as a contact area. The floor element can preferably be cut to any desired shape, the horizontal limit of which is located within the bearing area of the floor element. The boundary of the cut shape lies within the support area and thus always outside the support surface of the floor element and thus between the support surface and the horizontal boundary of the original floor element before it is cut.

In one embodiment, the shower tray device comprises a cover which, in the operating state, is detachably connected to the base element and partially closes the drain opening. On the one hand, the cover can be used to optically conceal the drain opening, and on the other hand it can prevent significant dirt from entering the drain opening. The cover is preferably designed like a plate. The drainage opening is preferably formed within a recess of the floor element provided on the upper side, into which the plate-like cover can be inserted, in particular can be inserted flush, and/or the cover is in the operating state on the preferably provided drain box and / or supported on the preferably provided drain pot. The cover itself preferably has passage openings, for example at least one slot or one or more round holes. The shower device is generally preferably designed in such a way that with a water supply of 0.5 l/s, in particular 0.6 l/s, in particular 0.7 l/s, in particular 0.8 l/s, distributed uniformly over the horizontal extension of the floor element s, in particular 1.0 l/s, the impinging water can be drained completely downwards via the drain opening from the top side of the floor element, in particular can be drained through the drain of the drain pot.

The invention also relates to a support for installing a floor element on an unfinished floor or for installing a floor element in a room floor. The carrier is used to implement an operating state in which the floor element is integrated into a floor covering of the room floor that is horizontally adjacent to the floor element and is arranged on a supporting covering that is provided on the unfinished floor. The floor element, for the installation of which the support is suitable, extends with its horizontal extent along a horizontal plane in a horizontal longitudinal direction with a length of at least 60 cm, in particular at least 80 cm, and in a horizontal transverse direction with a width of at least 60 cm , in particular at least 80 cm. The floor element has a horizontal drainage section, which forms part, in particular at least 10%, in particular at least 20%, and/or at least 400 cm ² of the horizontal extension of the floor element and within which a drainage opening of the floor element is formed, which extends from a Top of the floor member extends vertically through the floor member to the underside, wherein the Underside of the floor element forms a support surface within the run-off section. The carrier according to the invention has a supporting surface on a vertical end, with which it is arranged in contact with the support surface formed on the underside of the floor element in the operating state. The carrier according to the invention also has, at its opposite vertical end, a standing surface for supporting it on the unfinished floor. The carrier has a support element and at least one stand element, in particular a base, with the support element forming the support surface of the carrier and with the at least one stand element being designed for support on the subfloor and for holding the support element at a distance from the subfloor. The support according to the invention in itself represents a solution according to the invention. The support is preferably suitable for installing a floor element that has properties as described for the floor element of embodiments of the shower tray device according to the invention. The support is preferably suitable for installing a floor element on an unfinished floor which has a vertical thickness of at most 20 mm, in particular at most 15 mm, at least at a first longitudinal end over its entire transverse extent and at a first transverse end over its entire longitudinal extent and at its Top over an area of at least 0.3 m ² and in particular at least 70% of its horizontal extent has a gradient of at least 0.7%, in particular at least 1% to its drain opening. The carrier is preferably designed as a carrier for a shower tray device according to the invention or is suitable for use as a carrier for a shower tray device according to the invention. The carrier generally preferably has an extension in the transverse direction and thus a width of between 20 cm and 40 cm. Generally preferred has the Carrier has an extension in the longitudinal direction and thus a length between 20 cm and 40 cm, in particular between 20 cm and 50 cm. In particular, the carrier comprises a drain pan as explained above. The carrier particularly preferably has a supporting surface that extends over at least 20 cm, in particular at least 30 cm, in particular at least 40 cm, both in the transverse direction and in the longitudinal direction. Generally preferably, the supporting surface comprises a horizontally arranged closed ring. In advantageous embodiments, the carrier can have properties which are apparent to the person skilled in the art from the description of advantageous embodiments of the shower base device according to the invention, the room floor according to the invention, the set according to the invention and the method according to the invention, with the carrier having these properties as its own solution according to the invention and thus also decoupled from can have the other features of these solutions according to the invention.

The invention also relates to a set that includes a shower tray device according to the invention, the set including further floor elements in addition to the floor element included in the shower tray device, with the various floor elements of the set differing in their lengths and/or widths. Depending on the embodiment of the shower tray facility, each of the floor elements has the features of the floor element of the shower tray facility described above for this corresponding embodiment, so that each of the floor elements has a drain section and a support section, in preferred embodiments in which the shower tray facility has a support , the floor elements of the set are all compatible with the carrier of the shower tray device. Preferred the run-off sections of all floor elements have the same horizontal extensions, ie in all horizontal directions. Thus, in all floor elements, a corresponding horizontal section is provided next to the respective support section of the respective floor element. Each of the floor elements is preferably suitable for realizing the operating state of the shower tray device by arranging the support surface of the carrier preferably comprised by the shower tray device in contact with the support surface of the respective floor element. The supporting surfaces of all floor elements of the set are preferably of identical design. For example, one of the floor elements can have a width of between 80 cm and 100 cm and a length of between 80 cm and 100 cm, with a second of the floor elements having a width of between 100 cm and 140 cm and a length of between 100 cm and 140 cm. For example, a first of the floor elements can have a width between 80 cm and 100 cm and a length between 80 cm and 100 cm, a second of the floor elements can have a width between 80 cm and 100 cm and a length between 100 cm and 140 cm and a third of the Floor elements have a width between 100 cm and 120 cm and a length between 100 cm and 160 cm. Depending on the selection of the floor element, the floor element thus protrudes horizontally over a differently sized horizontal extension area over the drain section, in particular over the support preferably encompassed by the shower tray device. The horizontal extent of the support area of the various floor elements preferably changes by the same amount as their total horizontal extent. Particularly preferably, the vertical thicknesses formed at the respective first longitudinal end and in particular the first transverse end of the different floor elements differ Floor elements differ by less than 3 mm, in particular by less than 2 mm, so that the said vertical thicknesses of all floor elements vary by less than 3 mm, in particular less than 2 mm. Depending on the floor element selected for realizing the shower tray device, the floor element particularly preferably extends to different extents in the longitudinal direction and/or transverse direction beyond the drain section, in particular beyond the support.

The invention also relates to a room floor comprising an unfinished floor, a supporting covering applied to the unfinished floor, in particular screed, a floor covering and a shower tray device, in particular a shower tray device according to the invention.

The shower base unit comprises a floor element which extends horizontally along a horizontal plane in a horizontal longitudinal direction with a length of at least 60 cm, in particular at least 80 cm, and in a horizontal transverse direction with a width of at least 60 cm, in particular at least 80 cm , extends. The floor element has a horizontal run-off section that forms a part, in particular at least 10%, in particular at least 20%, and/or at least 400 cm ² of the horizontal extension of the floor element. A drainage opening of the floor element is formed within the drainage section, which opening extends vertically through the floor element from an upper side of the floor element to its underside. According to a solution according to the invention, the support covering has, horizontally next to the run-off section, an upper side parallel to the horizontal plane, on which the floor element rests with its support area. Preferred are the Floor covering and the floor element are fastened to the supporting covering over its contact area by means of a connecting layer, in particular by means of tile adhesive. According to a further solution according to the invention, which can be combined particularly advantageously with the aforementioned one, the shower tray device has a support which has a support surface on one vertical end and a standing surface on its opposite vertical end. The support of the shower tray device is supported with its standing surface on the unfinished floor, and the base element of the shower tray device lies with its support surface on the support surface of the support and is supported on the subfloor via the support. Particularly preferably, the supporting surface is adjacent to the supporting surface and is vertically flush with the upper side of the supporting surface that is adjacent to it. Thus, at least on its side facing the supporting surface, the supporting surface is at the same vertical height as the supporting surface on its side facing the supporting surface. In general, it is particularly preferred that the supporting surface is at the same vertical height over its entire horizontal extent as the supporting lining adjacent to it over its entire extent over which it is adjacent to the supporting surface. The floor covering can be designed as explained above for conventional floor coverings, in particular the floor covering comprises at least one tile. The floor element is preferably supported on the base covering over at least 90% of the entire horizontal extension of its contact area and thus rests on it, in particular indirectly via a tile adhesive or other connecting compound provided between the contact area and the base covering.

Next to the first longitudinal end of the floor element is at least one section of the floor covering, in particular at least one Tile arranged, wherein the top of the section of floor covering, in particular the top of the tile, is at the same vertical height as the top of the floor element at the first longitudinal end. At least one further section of the floor covering, in particular at least one further tile, is particularly preferably arranged next to the first transverse end of the floor element, the upper side of which is at the same vertical height as the upper side of the floor element at the first transverse end.

The floor covering, in particular the at least one tile, and the floor element are particularly preferably attached to the supporting covering over its contact area by means of a connecting layer, in particular by means of tile adhesive as the connecting mass. The floor element particularly preferably extends with its contact area between the drainage opening and the first longitudinal end in the longitudinal direction over at least 30% of the length of the floor element above the supporting covering and lies on the supporting covering over this length, in particular indirectly via tile adhesive. The floor element particularly preferably extends with its contact area between the drainage opening and the first transverse end and in particular the second transverse end in the transverse direction over at least 10%, in particular at least 20% of the length of the floor element above the supporting covering and lies on the supporting covering over this length of extension .

In general, the floor of the room preferably includes a sealing collar, which ensures a sealing connection of the support or the drain pan to the adjacent support covering. In one embodiment, the sealing collar, as explained above, runs horizontally around the drain opening with the edge area of the support element sealingly connected, preferably running horizontally around the drain opening over a connecting area with a width of at least 20 mm, in particular 30 mm. In general, the sealing collar is particularly preferably horizontally outside the support in a sealing manner with the top side of the support covering and in particular sealingly connected to the drain pan of the shower tray device, providing water flow from the top side of the support covering from horizontally outside the support to the drain of the drain pan. Particularly preferably, a sealing sleeve is sealingly connected horizontally outside the first longitudinal end to the upper side of the support covering and connected to the drain pan of the shower tray device, providing water flow from the top of the screed from horizontally outside the floor element to the drain of the drain pan.

Underfloor heating is particularly preferably provided within the vertical extent of the supporting covering between the unfinished floor and the floor covering. The underfloor heating particularly preferably extends within the horizontal extension area of the support area of the floor element, in particular over at least 10% of the horizontal extension of the floor element. The arrangement of underfloor heating, in particular of underfloor heating pipes, within the horizontal extension of the support area of the floor element is made possible thanks to the configuration of the shower tray device according to the invention and has the particular advantage that the floor element and thus the shower floor used by a person can be kept at a pleasant temperature .

The invention also relates to a method for installing a shower tray device in a room floor. in one In the first method step, a supporting covering, in particular screed as a supporting covering, is realized on a raw floor with an upper side running parallel to a horizontal plane. In a second method step, a floor element is arranged on the unfinished floor. In one embodiment, this takes place in that the floor element is fastened to the upper side of the supporting covering over a contact area of the floor element that is at least 30%, in particular at least 40%, in particular at least 50% of a horizontal extension of the floor element running along the horizontal plane, in particular by means of a connecting compound, in particular by means of tile adhesive. At one horizontal longitudinal end and at least one horizontal transverse end, in particular at both opposite horizontal transverse ends, in the second method step, next to the floor element, sections of a floor covering, in particular tiles, are attached to the upper side of the supporting covering, in particular with tile adhesive, so that the sections of the floor covering , in particular the tiles, are at the same vertical level as the horizontal ends of the floor element arranged next to them. During the second method step, the floor element is also arranged next to the support covering with a drainage section outside the support area, within which the floor element has a drainage opening and which forms at least 10% of the horizontal extent of the floor element. In one embodiment, during the first method step, a support for the shower tray device is also set up on the unfinished floor, with the support covering being realized horizontally next to the support on the unfinished floor, and with the floor element being connected during the second method step with an inside of the run-off section or outside of the preferably intended support area lying support surface is placed on the carrier and supported on this at the unfinished floor. Generally preferably, during the second method step, a drainage pot, which is fastened with its access in a watertight sealing manner around the drainage opening on the underside of the floor element, is arranged outside the support area and horizontally next to the supporting covering. Particularly preferably, during the second method step, in the course of placing the support surface of the floor element on the carrier, a drainage opening provided in the floor element is aligned with an inlet of a drainage pot, which was fixed to the unfinished floor within the vertical extent of the supporting covering in the first method step. The drain pot is particularly preferably fixed in a fixed position relative to the support surface of the carrier in the first method step. Particularly preferably, during the first method step, a sealing sleeve, which is already sealingly connected to the support around the inlet of the drain top in a horizontally closed peripheral manner or is correspondingly sealed to the support during the first method step, is sealingly connected horizontally outside the support to an upper side of the support covering . In one embodiment, the sealing collar is non-detachably connected to the carrier and protrudes horizontally beyond the carrier, being sealingly connected to the upper side of the support covering with its area protruding horizontally beyond the carrier. In one embodiment, a sealing tape is provided as the sealing collar, a first horizontal section of which is glued to the carrier and a second horizontal section that is glued to the upper side of the supporting covering, so that in one embodiment the sealing collar is formed by a sealing tape, for example by several individually glued sections a sealing tape. The first horizontal section extends closed around the inlet of the drain pot and the second horizontal section extends closed around the carrier horizontally around. Particularly preferably, the first horizontal section of the sealing tape is applied to a fleece layer that is provided on the upper side of the carrier. The fleece layer particularly preferably extends over a horizontal section of the supporting surface of the carrier or forms a section of the supporting surface of the carrier. Particularly preferably, before the second method step is carried out, a starting floor element, by means of which the second method step can be carried out, is cut to size with the realization of the floor element. The starting floor element can be, for example, the floor element of a shower tray device according to the invention, which can have the explained properties of the floor element of various embodiments of the shower tray device according to the invention. Since an initial floor element is cut to size before the implementation of the second method step to produce the floor element, the floor element used in the second method step can be particularly well adapted to spatial conditions. Trimming can be done with a tile cutter, a saw or an angle grinder, for example. A floor element, as explained above, of an embodiment of a shower base unit according to the invention is particularly preferably used as the initial floor element, with the floor element being cut to size starting from the initial floor element in such a way that the cutting line lies within the contact area of the initial floor element, with the floor element that realization of the second Method step is used, as its contact area has a portion of the contact area of the starting floor element. In one embodiment, during the second method step for realizing the floor element, a casting compound is cast, which hardens during the second method step and forms the upper side of the floor element.

The method according to the invention can have further features which are apparent to the person skilled in the art from the above explanations of various embodiments of a shower tray device according to the invention and a room floor according to the invention as well as from the above explanations of generic realization of shower floors. In one embodiment, the shower tray device according to the invention can also have features that are apparent to a person skilled in the art in connection with a generic realization of shower floors, the description of embodiments of a room floor according to the invention and the description of embodiments of a method according to the invention. In general, in particularly advantageous embodiments, features that are described here for different embodiments or solutions according to the invention can be combined with one another as desired.

The invention is explained in more detail below with reference to three figures using exemplary embodiments.

Figur 1:

in einer schematischen Prinzipdarstellung eine Schrägansicht von oben auf das Bodenelement einer Ausführungsform einer erfindungsgemäßen Duschtasseneinrichtung;

Figur 2:

in einer schematischen Prinzipdarstellung einen beispielhaften Schnitt durch die Ausführungsform einer Duschtasseneinrichtung gemäß Figur 1 senkrecht zur Querrichtung;

Figur 3:

in einer schematischen Prinzipdarstellung einen Schnitt senkrecht zur Längsrichtung durch eine Ausführungsform eines erfindungsgemäßen Rohbodens;

Figur 4:

in verschiedenen schematischen Prinzipdarstellungen Bestandteile einer weiteren Ausführungsform einer erfindungsgemäßen Duschtasseneinrichtung und eines erfindungsgemäßen Raumbodens;

Figur 5:

in verschiedenen schematischen Prinzipdarstellungen Bestandteile einer weiteren Ausführungsform einer erfindungsgemäßen Duschtasseneinrichtung und eines erfindungsgemäßen Raumbodens;

Figur 6:

in verschiedenen schematischen Prinzipdarstellungen Bestandteile einer weiteren Ausführungsform einer erfindungsgemäßen Duschtasseneinrichtung und eines erfindungsgemäßen Raumbodens.

Show it:

Figure 1:

in a schematic representation of the principle, an oblique view from above of the floor element of an embodiment of a shower tray device according to the invention;

Figure 2:

in a schematic representation of the principle, an exemplary section through the embodiment of a shower tray device according to FIG figure 1 perpendicular to the transverse direction;

Figure 3:

in a schematic representation of principle a section perpendicular to the longitudinal direction through an embodiment of an unfinished floor according to the invention;

Figure 4:

in various schematic representations of principles, components of a further embodiment of a shower tray device according to the invention and a room floor according to the invention;

Figure 5:

in various schematic representations of principles, components of a further embodiment of a shower tray device according to the invention and a room floor according to the invention;

Figure 6:

in various schematic representations of principles components of a further embodiment of a shower tray device according to the invention and a room floor according to the invention.

In figure 1 the floor element 2 of an embodiment of a shower tray device 1 according to the invention is shown schematically in simplified form in a view obliquely from above. In figure 2 a cross section perpendicular to the transverse direction Y along the transverse center of the floor element 2 is shown in simplified schematic form. The horizontal extent of the floor element 2 extends along a horizontal plane which is spanned by a longitudinal direction X and a transverse direction Y, which are perpendicular to one another. In the present case, the floor element 2 is square and has a length and width of approximately 90 cm. Within its horizontal In its extension, the floor element 2 has a drainage opening 20 which is covered in sections by a cover 27 comprised by the shower tray device 1 . The drain hole 20 is shaped like a gutter, and the cover 27 is shaped like a metal plate with holes. The floor element 2 has a figure 1 shown upper side 21, which thus defines the vertical upper end of the floor element 2. On the upper side 21 the base element 2 forms a horizontal peripheral edge 24 which forms all horizontal ends of the upper side 21 . The horizontal edge 24 extends from the longitudinal ends of the floor element 2 over approx. 3 cm in the longitudinal direction X towards the longitudinal center of the floor element 2 and from the transverse ends of the floor element 2 over approx. 3 cm in the transverse direction Y towards the transverse center of the floor element 2. Within the horizontal extension of the rim 24, the top 21 runs essentially parallel to said horizontal plane. The provision of such a rim 24, which extends from the longitudinal ends to the longitudinal center in the longitudinal direction X over 1 cm to 10 cm and from the transverse ends to the transverse center over 1 cm to 10 cm, is generally advantageous according to the invention. Starting from the edge 24 towards the horizontal center of the floor element 2 , a gradient towards the drain opening 20 is formed on the upper side 21 of the floor element 2 . In the present case, the gradient extends over approximately 85% of the entire horizontal extension of the floor element 2, in this case over approximately 0.7 m ² . The provision of a gradient over at least 70%, in particular at least 80%, of the upper side 21 of the floor element 2 is generally advantageous according to the invention. In figure 1 the first longitudinal end 22 and the first transverse end 23 of the floor element 2 are also shown. The first longitudinal end 22 extends in a straight line in the transverse direction Y, and the first transverse end 23 extends in the longitudinal direction X in a straight line.

In figure 2 the relative position of the floor element 2 and the support 3 is shown in the operating state of the shower tray device 1 . In this operating state, the floor element 2 rests on a supporting surface 33 of the carrier 3, which forms a section of the upper side of the carrier 3, presently and according to the invention generally advantageously forming the absolute vertical upper end of the carrier 3. On its underside, the carrier 3 has a base 34 over which it can be set up on a subfloor. The standing surface 34 forms the absolute vertical lower end of the carrier 3, which is generally advantageous according to the invention. In the present case, the carrier 3 is designed as a drain box with a housing 31 . The housing wall of the housing 31 forms the supporting surface 33 . The support 3 has an inlet which, when the shower tray device 1 is in operation, is arranged in alignment with the drainage opening 20 of the floor element 2 under the floor element, so that water hitting the upper side 21 of the floor element 2 can flow through the gradient provided on the upper side 21 to the drainage opening 20 is passed and can flow from there into the carrier 3. The housing 31 of the carrier 3 is designed to carry water, ie the housing 31 has a closed water flow from the inlet to the in figure 2 diagrammatically illustrated outlet 30 is formed, so that water which has reached the housing 31 via the inlet can only flow out of the housing 31 via the outlet 30 as long as the water level in the housing 31 does not reach the inlet. Out of figure 2 It can be seen that the floor element 2 has a support surface which rests on the support surface 33 of the support 3 when the shower tray device 1 is in operation, and a support area which is suitable for this purpose horizontally next to the support 3, such as screed, the top of which is parallel to said horizontal plane and ends at the vertical level of the bearing surface 33 of the support 3, to be arranged over its entire horizontal extension, which is generally advantageous according to the invention. Starting from the first longitudinal end 22, the support area extends over the entire transverse extent of the floor element 2 along the longitudinal direction X, in this case over approx. 60% of the length of the floor element 2. Within the support area, the gradient formed on the upper side 21 is due to a change in the vertical thickness of the floor element 2 is formed. Correspondingly, the absolute vertical lower end formed in the first tenth of the longitudinal extension of the floor element 2 starting from the first longitudinal end 22 is not offset vertically from the absolute vertical lower end which the floor element 2 forms in the third, fourth and fifth tenth of its longitudinal extension. On the other hand, the absolute vertical upper end of the transverse center of the floor element 2, which is formed in the first tenth of the longitudinal extent of the floor element 2 starting from the first longitudinal end 22, is formed here by the vertical height of the edge 24, is significantly offset from the absolute vertical upper end formed in the third tenth of the length of the floor member, and more of the absolute vertical top formed in the fourth tenth, and more of that formed in the fifth tenth of the length. Out of figure 2 It can be seen that this design of the contact area of the floor element 2 means that the floor element 2 is placed with its contact area like a tile on a screed running in the horizontal plane with its upper side and is fastened to it with tile adhesive can. Out of figure 2 It can also be seen that as the distance in the longitudinal direction X from the first longitudinal end 22 increases, the vertical thickness of the floor element 2 in its transverse center continues to decrease due to the formation of the gradient on the upper side 21 . Correspondingly, with a large extension of the floor element 2 in the longitudinal direction X, a critical thickness of the floor element 2 is reached from a certain distance, in which a sufficient stability of the floor element 2 is no longer guaranteed. In the described embodiment, this thickness is not reached, but before the thickness of the floor element 2 is reduced too much, the support surface of the floor element 2 is formed, with which it rests on the supporting surface 33 of the carrier 3 in the operating state. With an increase in its vertical thickness, the floor element 2 has an offset on its underside, so that a vertical offset between the absolute vertical lower end of the floor element 2 formed in the first tenth of the longitudinal extension of the floor element 2, in relation to the first longitudinal end 22, and the im seventh tenth of the longitudinal extension of the floor element 2 formed absolute vertical lower end of the floor element 2 is formed. Correspondingly, the bottom element 2 forms a first section 201 on its underside, which is formed by the support area, and a second section 202, which is arranged in the longitudinal direction X between the drain opening 20 and the support area, the second section 202 relative to the first Section 201 is offset vertically downwards and the underside outside of the contact area has a vertical jump downwards, with which it merges from the first section 201 into the second section 202. Out of figure 2 it can be seen that the jump starting from the support surface in the longitudinal direction X to the housing interior of the housing 31 of the Carrier 3 is formed. This ensures a particularly good guidance of the floor element 2 relative to the carrier 3 , in particular a particularly simple realization of the operating state of the shower tray device 1 in which the floor element 2 has a fixed position relative to the carrier 3 . Because an installer or tiler can, thanks to the offset, place the floor element 2 on the carrier 3 designed as a drain box in such a way that the offset virtually snaps into place in the housing 31 . Correspondingly, starting from the second longitudinal end of the base element 2 opposite the first longitudinal end 22 , a corresponding projection is formed on the underside in the direction of the drain opening 20 . A corresponding offset is also formed starting from the two transverse ends of the base element 2 towards the drain opening 20 so that the base element 2 is snapped into the housing interior of the carrier 3 in both spatial directions thanks to the offset.

Out of figure 2 It can also be seen that the floor element 2 has a greater vertical thickness at the second longitudinal end opposite the first longitudinal end 22 than at its first longitudinal end 22 and correspondingly runs with a greater incline towards the drain opening 20 . Also is in figure 2 It can be seen that the drainage opening 20 is arranged in a longitudinal end area of the floor element 2, which forms the second longitudinal end and which extends over less than 30% of the length of the floor element 2 in the longitudinal direction X, which is generally advantageous according to the invention. It can also be seen that the support surface of the floor element 2 is formed exclusively in a longitudinal end area of the floor element 2, which forms the second longitudinal end and extends over less than 50%, in this case less than 40%, of the length of the floor element 2, starting from the second Longitudinal end extends in the longitudinal direction X, which is also advantageous according to the invention. Due to the special design of the embodiment described, it is possible to arrange the floor element 2 with its second longitudinal end on a wall, on which the carrier 3 is then also arranged. The thicker second longitudinal end can prevent water from entering between the wall and the floor element 2 particularly well, and the arrangement of the carrier 3 in the longitudinal end area mentioned allows the carrier 3 to be positioned very close to the wall and thus very close to the wall of the floor element 2 support against a subfloor on which he is placed with his footprint 34. Correspondingly, there is no need for a screed strip between the wall and the support 3, which is usually difficult to implement and there is a risk of damage. In the exemplary embodiment described and in a generally advantageous manner, a section of the supporting surface 33 of the carrier 3 and a section of the supporting surface of the floor element 2 are arranged in a longitudinal end region of the floor element 2, which, starting from the second longitudinal end, extends by less than 10%, in particular by less than 5% % of the length of the floor element 2 towards the first longitudinal end 22, this section of the supporting surface 33 or supporting surface generally preferably forms at least 10%, in particular at least 20% of the supporting surface 33 or supporting surface.

In figure 3 an embodiment of a room floor 100 according to the invention is shown in a highly simplified schematic in a section perpendicular to the transverse direction Y, which comprises an embodiment of a shower tray device 1 according to the invention in its operating state. The room floor 100 comprises an unfinished floor 5 and a screed 6 as a supporting covering, which runs horizontally next to the carrier 3 parallel to the said horizontal plane has top. On this upper side, tiles 4 are used as the floor covering and the floor element 2 is fastened adjacent to the tiles 4 by means of tile adhesive 7 , with an insulating layer 9 being provided between the unfinished floor 5 and the screed 6 . In other, non-illustrated embodiments, the insulating layer 9 can be encompassed by the unfinished floor 5, so that the carrier 3 can be placed on an insulating layer 9 of the unfinished floor 5, which also extends underneath it. Out of figure 3 it can be seen that the floor element 2 rests with its support area on the screed 6 and is also supported via its support surface on a supporting surface 33 of the carrier 3, which in turn is set up with its standing surface 34 on the unfinished floor 5, so that the carrier 3 Floor element 2 carries at the height of its support surface in relation to the unfinished floor 5. The carrier 3 has height-adjustable feet 32 and a drain pan 35 which forms a drain 30 and an inlet which is aligned with the drain opening 20 of the base element 2, which is shown in accordance with FIG figure 3 is covered by the cover 27. The underside of the floor element 2 has a first section 201, which is formed by the support area, and a second section 202, which is arranged in the longitudinal direction X between the drain opening 20 and the support area, the second section 202 being vertical relative to the first section 201 is shifted downwards. For this purpose, the underside forms a vertical offset outside of the contact area with which the floor element 2 rests on the screed 6 . Out of figure 3 it can be seen that an increase in the thickness in the second section 202 can be achieved as a result, which is useful for the stability of the floor element 2 . Furthermore, it can be seen that thanks to the increased thickness, a steeper slope can be provided in the second section 202 than in the first section 201, which results in this results in water that has reached the bottom element 2 in the vicinity of the drain opening 20 being increasingly guided towards it.

In figure 4 including the Figures 4A , 4B , 4C and 4D are shown simplified views of components of a further embodiment of a shower tray device 1 according to the invention in various schematic representations. In the figure 4 shown embodiment of the shower tray device 1, which can be seen from the synopsis of Figures 4A , 4B , 4C and 4D results, comprises a carrier 3 with a support element 301 and five feet 32 as standing elements Figures 4A and 4B As can be seen, the support element 301 has an edge area 311 which surrounds a central area 312 of the support element 301 in a horizontally closed manner. The upper side of the edge area 311 protrudes vertically over the central area 312 . The edge area 311 forms the supporting surface of the carrier 3 . The central region 312 is thus provided in the support element 301 in the manner of a trough. In Figure 4C the underside of the floor element 2 is shown. The underside of the floor element 2 comprises a first section, which forms the support area of the floor element, and a second section 202, which is arranged in the longitudinal direction and in the transverse direction between the drainage opening 20 and the support area or the first section 201, and a third section 203 , which is arranged at least on two transverse sides and one longitudinal side of the drain opening 20 between the first and the second section 201, 202. The second portion 202 of the underside is within this second portion 202 relative to the first due to a greater vertical thickness of the floor member Section 201 offset vertically downwards. How out Figure 4D As can be seen, in which the operating state of the shower tray device 1 is indicated, the base element 2 protrudes with the second section 202 of its underside into the trough formed by the central region 312 of the support element 301, while the base element 2 with a first section 201 adjoining, at the same vertical height directly in this transitioning third section 203 of its underside on the bearing surface of the carrier 3 formed by the edge region 311 and is thereby supported on the carrier 3. How out Figure 4D As can be seen, the second section 202 of the underside of the floor element 2 has a smaller horizontal extent than the middle region 312 of the support element 301 . This enables a displacement range within which the floor element 2 can be displaced horizontally relative to the support element 301 , while the support element 301 is already fixed in position on the unfinished floor 5 via the feet 32 . The fixation of the support element 301 on the subfloor 5 is from the synopsis of Figures 4A and 4B evident. The shower tray device 1 has several feet 32 as standing elements. The feet each comprise a plurality of parts, in the present case a foot element 321, a connecting element 323 and a holding element 322. In the present case, the holding element 322 is designed as a sleeve with an internal thread. In the embodiment described, the holding element 322 is pressed into the supporting element 301 . In another embodiment, not shown, the holding element 322 can be integrated in the support element 3 . The connecting element 323 is designed as a threaded rod with an external thread, which is rotatably mounted in the foot element 321 in a constant vertical position. The interaction of foot element 321, connecting element 323 and holding element 322 is particularly off Figure 4D apparent. As from the synopsis of Figures 4A and 4B As can be seen, the foot elements 321 each have a passage for a screw 324 which, in the installed state, ie when the carrier 3 has been fastened to the unfinished floor 5, is screwed into a dowel which is provided in the unfinished floor 5. On its horizontally circumferential outer side, the support element 301 also has a projection arrangement 313 below its upper side and thus below the support surface formed by the edge region 311 . This projection arrangement 313 can advantageously engage in a supporting covering, in particular screed 6, which is applied to the unfinished floor 5 according to an embodiment of the method according to the invention after the carrier 3 has been attached to the unfinished floor 5 beforehand. Such a screed 6 is in Figure 4D shown.

The shower tray device 1 according to figure 4 also has a drain pot 35 and a connecting unit 36, through which the drain opening 20 of the base element 2 is fluid-carrying connected to the drain pot 35, ie the inlet of the drain top. In the exemplary embodiment described here, the connection unit 36 is produced separately from the support element 301 as a separate component. The connecting unit 36 comprises a socket element 361 with a peripheral flange 362, as is particularly evident from the synopsis of Figures 4A , 4B and 4D is evident. The socket element 361 protrudes into the inlet of the floor drain 35 and is sealed off from it by a connecting seal 364 . On the underside of the floor element 2, a ring seal 363 is fixed in a fixed position on the floor element 2, closed horizontally around the drain opening 20, as shown in Figure 4C is shown. Through the ring seal 363 is a sealing connection between the underside of the floor element 1 and the flange 362 of the connection unit 36 over the sliding range of the floor element 2 explained above. In the embodiment described here and which is generally advantageous according to the invention, the sealing connection between the base element 2 and the flange 362 is already provided by the weight of the base element in conjunction with its effect on the ring seal 363 .

In figure 5 including the Figures 5A and 5B are shown in various schematic representations of principles of components of a further embodiment of a shower tray device 1 according to the invention. The embodiment according to figure 5 differs from the embodiment according to figure 4 essentially in that in the embodiment according to figure 5 are provided as stand elements of the carrier 3 bracket 37 and that the frame of the shower tray device 1 is not, as in the embodiment according to figure 4 , is provided by the supporting element 301 of the carrier 3, but by a separate frame element 8. Only the differences in the embodiment according to FIG figure 5 with regard to the embodiment according to figure 4 received. In the embodiment according to figure 5 a frame element 8 is provided that is cuboid, in this case designed in the manner of an open box and is made of a soft plastic, in this case TPE. To implement the operating state or to install the shower tray device 1 in a room floor, the frame element 8 is first placed on the unfinished floor 5, as is shown in Figure 5A is shown. The frame element 8 has such a geometric extent that, in principle, the support element 301 can be accommodated horizontally by the frame element 8, as is shown in Figure 5A is shown for the sake of explanation. At this point it should be noted that for the sake of illustration, the Figures 5A and 5B show a section through the components shown in the respective figures, the section passing through a plane defined by the longitudinal and vertical directions. In the embodiment according to figure 5 In the operating state, the support element 301 is held at a vertical distance from the unfinished floor 5 by providing brackets 37, which are placed with a laying section on the bearing covering or screed 6 and which have a holding section on which the bearing element 301 is placed. The installation is carried out in such a way that initially, as in Figure 5A shown, the frame element 8 is placed on the unfinished floor 5, after which the supporting covering or screed 6 is applied to the unfinished floor 5 so that it is directly adjacent to the frame element 8. After the application of the supporting covering or screed 6, the frame element 8 is shortened so that its upper side ends at most on the upper side of the adjacent supporting covering or below. The shortening can be done with a knife, for example. Then, at each corner of the frame element 8, a holding bracket 37 is placed with its laying section on the adjoining support covering. Its holding portion extends vertically offset downwards and offset horizontally to the interior of the frame member 8 . The support element 301 is placed on this holding section. Since the laying section of the mounting bracket 37 has a vertical thickness of only 1 mm, a floor covering, for example tile covering, can be applied to the supporting covering over the laying section of the mounting bracket 37 without any problems using a tile adhesive layer with a conventional thickness, for example approx. 1.5 mm .

In figure 6 including the Figures 6A, 6B and 6C components of a further embodiment of a shower tray device 1 according to the invention are shown in different views in greatly simplified form in various schematic representations of principles. In the figure 6 The embodiment described has a support element 301, as is the case with the embodiments according to FIG figure 4 and figure 5 is explained. The support element 301 has an edge area 311 and a central area 312 . In Figure 6A the upper side of the support element 301 is shown schematically in Figure 6B the underside of the support element 301 is shown schematically. A fleece layer 39 is arranged on the upper side of the support element 301 within the edge area 311 , the fleece layer running over a part of the edge area 311 like a ring. Of course, the fleece layer 39 can run over the entire edge area 311 in advantageous embodiments. This fleece layer 39 is used to implement a particularly well-sealing adhesive bond using a sealing tape 10, as is shown in Figure 6C is shown to explain a room floor realized with the described embodiment. The sealing tape 10 is applied to the fleece layer 39 provided on the upper side of the edge region 311 and glued both to this fleece layer 39 and to the upper side of the adjoining screed 6 as the intended supporting covering. This ensures a sealing connection between the screed 6 and the support element 301 . The sealing strip 10 is closed horizontally and applied circumferentially to form a sealing sleeve, in this case a sealing ring, at the transition between the screed 6 and the support element 301 . Of course, in embodiments, the support element 301 can be arranged adjacent to a wall at a transverse end and/or a longitudinal end, in which case the sealing strip 10 with its over the Edge region 311 protruding section is glued to the wall to ensure a sealing connection between the wall and the support element 301. Because of its sealing function, the sealing strip 10 that is implemented can be referred to as a sealing collar in the operating state, ie when the shower tray device 1 has been installed in a room floor. As in Figure 6B As can be seen, a further fleece layer 38 is provided on the underside of the support element 301 within the horizontal extent of its edge region 311, namely within the same horizontal region in which the fleece layer 39 is provided on the upper side. Although this further fleece layer 38 is not required to produce a sealing connection, this further fleece layer 38 is advantageous for the production of the support element 301 in that the support element 301 has a precisely definable shape. This is because the additional fleece layer 38 has the function of a counteracting layer, which ensures a counteracting pull relative to the tension generated by the fleece layer 39 provided on the upper side of the support element 301 . As a result, an undesired deformation of the support element 301 during the production process can be effectively counteracted.

Reference List

1

shower tray arrangement

2

floor element

3

carrier

4

tile

5

unfinished floor

6

screed

7

tile glue

8th

frame element

9

insulation layer

10

sealing tape

20

drain hole

21

top

22

first longitudinal end

23

first cross end

24

surrounding border

27

cover

30

Sequence

31

Housing

32

stand

33

wing

34

floor space

35

drain pan

36

connection unit

100

room floor

201

first section

202

second part

203

third section

301

supporting element

311

edge area

312

mid range

321

foot element

322

holding element

323

fastener

361

nozzle element

362

flange

363

ring seal

364

connection seal

X

longitudinal direction

Y

transverse direction

Claims (26)

Shower tray device (1) comprising a floor element (2) which extends horizontally along a horizontal plane in a horizontal longitudinal direction (X) with a length of at least 60 cm, in particular at least 80 cm, and in a horizontal transverse direction (Y). a width of at least 60 cm, in particular at least 80 cm, with the floor element (2) having a horizontal run-off section which covers a part, in particular at least 10%, in particular at least 20% and/or at least 400 cm ² , of the horizontal extent of the base element (2) and within which a drainage opening (20) of the base element (2) is formed, which extends from an upper side of the base element (2) vertically through the base element (2) to its underside, the drainage opening (20) in particular is spaced apart from at least one transverse end of the floor element (2) by at least 15% of its entire transverse extent,
characterized in that
the floor element (2) at least at a first longitudinal end over its entire transverse extent and at a first transverse end over its entire longitudinal extent has a vertical thickness of no more than 20 mm, in particular no more than 15 mm and on its upper side over an area of at least 0.3 m ² and in particular at least 70% of its horizontal extent a gradient of at least 0.7%, in particular at least 1%, to the drain opening towards, wherein the floor element (2) has a contact area which is arranged horizontally exclusively outside the run-off section and which, starting from the first longitudinal end (22) of the floor element (2), extends over at least 30%, in particular at least 40%, in particular at least 50% % whose length extends in the longitudinal direction (X) to the drain opening (20) over its entire width and which, in an operating state of the shower tray device (1), for support on an upper side of a support covering which is arranged horizontally next to the drain section and runs parallel to the horizontal plane, in particular Screed (6) is formed. Shower tray device (1) according to claim 1,
characterized in that
the support area extends horizontally outside of the drainage section, starting from the first transverse end of the floor element (2) over at least 10% of its width over its entire length in the transverse direction (Y) towards the drainage opening (20), with the shower tray device (1) in particular for integration is formed in a tile covering which is applied to the upper side of the supporting covering provided next to the run-off section and adjoins both the first longitudinal end (22) and the first transverse end (23). Shower tray device (1) according to one of the preceding claims,
characterized in that
the run-off section is arranged exclusively in a longitudinal end area of the floor element (2) outside of its support area, which extends over less than 50%, in particular less than 40% of the length of the floor element (2) and at one of the first longitudinal ends in the longitudinal direction (X) opposite second longitudinal end, in particular the drainage opening (20) being arranged exclusively within a longitudinal extent of the base element (2) which, starting from the second longitudinal end, extends over less than 30%, in particular less than 20%, of the length of the base element (2). is. Shower tray device (1) according to one of the preceding claims,
characterized in that
the underside of the floor element (2) has a first section (201) formed by the support area and a second section (202) which is arranged in the longitudinal direction (X) between the drainage opening (20) and the support area, wherein the second section (202) is offset vertically downwards relative to the first section (201), in particular offset vertically downwards by at least 5 mm, with the underside in particular having a vertical offset outside the support area, with which it is offset from the first section ( 201) merges into the second section (202), and/or the floor element (2) has a stiffening structure, for example a reinforcement and/or a fiber insert, at the transition between the first and the second section (201, 202)" whereby in particular the Top (21) within the first section (201) a smaller gradient along the Longitudinally (X) than in the second section (202), in particular the floor element (2) in the second section (202) has a greater vertical thickness than in the first section (201). Shower tray device (1) according to one of the preceding claims,
characterized in that
the gradient formed on the upper side (21) along the longitudinal direction (X) from the first longitudinal end (22) to the drainage opening (20) within the support area at least predominantly by reducing the vertical thickness of the floor element (2) within the area over which the gradient is formed, starting from the vertical thickness provided at the first longitudinal end (22). Shower tray device (1) according to one of the preceding claims,
characterized in that
the underside of the floor element (2) forms a support surface within the run-off section and the shower tray device (1) comprises a support (3) which has a supporting surface (33) at a vertical end, with which it can be attached when the shower tray device (1) is in operation is arranged adjacent to the support surface formed by the underside of the floor element (2), and which has a standing surface (34) at its opposite vertical end for support on an unfinished floor (5), the carrier (3) in particular having a support element (301) and has at least one standing element, in particular a standing foot (32), the supporting element (301) forming the supporting surface (33) of the carrier and the at least one standing element for supporting on the unfinished floor (5) and for holding the Supporting element (301) is formed at a distance from the unfinished floor (5). Shower tray device (1) according to one of the preceding claims,
characterized in that
the shower tray device (1) has a peripheral frame with a horizontal extension, with the drain section being arranged completely within the horizontal extension of the frame in the operating state and the frame being arranged completely under the floor element (2) in the operating state, with the frame in particular being separated from the support element (301) or of a frame element (8) whose vertical height can be adjusted, the frame in particular having a projection arrangement on at least one of its outer sides below the upper side of the support (3) for hooking to the support covering. Shower tray device (1) according to one of claims 6 or 7,
characterized in that
the support element (301) has an edge area (311) and a central area (312) lying horizontally within the edge area (311) and enclosed by the edge area, the edge area (311) forming at least one section of the supporting surface (33) with its upper side and protrudes vertically over the central area (312), with the edge area (311) and the central area (312) in particular being connected to one another in one piece and the edge area (311) merging into the central area (312) via a step, with the edge area (311) in particular has a width of at least 20 mm, in particular at least 30 mm, with which it circulates around the central area (312). Shower tray device according to claims 4 and 8,
characterized in that
the underside of the floor element (2) has a third section (203) which is arranged between the first section (201) and the second section (202) and is at the same vertical height as the first section (201) and at least one section of the support surface and rests on the edge area (311) in the operating state, the second section (202) having a smaller horizontal extent than the central area (312), so that the base element (2) can be displaced horizontally relative to the carrier (3), while it rests with its third section (203) on the edge area (311). Shower tray device (1) according to one of claims 8 or 9,
characterized in that
the shower tray device (1) comprises a sealing sleeve (4) which is closed around the central area (312) and is sealingly connected to the edge area (311) and protrudes horizontally around the edge area (311) by at least 20 mm, in particular at least 30 mm, in particular the edge region (311) being spaced at least 50 mm apart from at least one horizontal end of the floor element (2) in the operating state, in particular at least from the first longitudinal end and in particular from the first transverse end of the floor element, and/or that on the upper side of the edge region (311) a non-woven layer is provided for gluing on a sealing tape, in particular on the underside of the edge region a further fleece layer or other reinforcement layer is provided within the same horizontal area over which the fleece layer extends at the top. Shower tray device (1) according to one of Claims 6 to 10,
characterized in that
the carrier (3) has a plurality of stand elements designed as feet (32) which are spaced horizontally from one another at a respective assigned point on the support element (301), in particular in a horizontal end section of the support element (301), with each of the feet (32), in particular from the top of the carrier (3), is height-adjustable for setting a distance between the support element (301) and the unfinished floor (5) at precisely the point on the support element (301) assigned to it, in order to enable the support element (301) to be vertically aligned 301) relative to the unfinished floor (5), while the support element (301) is positioned horizontally to the unfinished floor (5) by each of the feet (32) with its respective location assigned to the respective foot (32), with the feet (32) in particular can each be brought into different length states, in which they each have a different vertical length, in particular in each length state they retain their vertical length under a vertical compressive load with a force of 100 N, in particular with a force of 200 N, and in particular with a vertical one maintain their vertical length when pulled with a force of 50 N. Shower tray device (1) according to claim 11,
characterized in that
the feet each comprise several parts, in particular a foot element (321) for setting up on the unfinished floor (5), a holding element (322) for holding on the support element (301) and a connecting element (323) for connecting the foot element (321) to the Retaining element (322), wherein the different lengths can be adjusted by moving at least some of the parts relative to one another, with the connecting element (322) in particular being designed as a threaded rod and the lengths being adjusted by turning the connecting element (323) relative to the base element (321) and/or to the holding element (322) are adjustable. Shower tray device (1) according to one of Claims 6 to 12,
characterized in that
the support element (301) is made of plastic, in particular by means of an injection molding process or of plastic foam. Shower tray device (1) according to one of Claims 6 to 13,
characterized in that
when the shower tray device (1) is in operation, the support area of the floor element (2) is arranged horizontally completely outside of the support (3) and for support on an upper side of one that is arranged horizontally next to the support (3) when the shower tray device (1) is in operation, to the horizontal plane parallel running, on the unfinished floor (5) provided screed (6) is formed with a simultaneous support of the carrier (3) on the unfinished floor (5). Shower tray device (1) according to one of the preceding claims,
characterized in that
the shower tray device (1) has a drain pan (35) with an inlet and an outlet (30), with the inlet in the operating state of the shower tray device (1) carrying water, in particular flush with the drain opening (20) of the floor element (2) below the Floor element (2) is arranged to receive water flowing off vertically downwards through the drain opening (20), and wherein the drain (30) is designed for connection to a drain pipe on the building side for draining the water into the drain pipe, with the drain pot (35 ) has an odor barrier between the inlet and outlet (30). Shower tray device (1) according to claim 15,
characterized in that
the shower tray device (1) comprises a connection unit (36) which is arranged on the underside of the floor element (2) and which, in the operating state, is sealed relative to the drain pan (35) independently of the floor element (2) and to ensure that water can flow from the underside of the Floor element (2) from the water exiting the drain opening (20) to the inlet of the drain pan (35), in particular the connection unit (36) and the floor element (2) being designed to correspond to one another in such a way that the water flow can be carried out over a horizontal displacement range of the Floor element (2) relative to the connecting unit (36) is ensured, with the floor element (2) relative to the connecting unit (36) being in particular based on the operating state is movable, while the connecting unit (36) remains unchanged with the drain pan (35) sealingly connected, wherein in particular the connecting unit (36) is formed by the carrier (3) or its supporting element (301) or independently of the base element on the carrier ( 3) or whose support element (301) is fixed, with the connection unit (36) in particular having a socket element (361) which in the operating state is sealingly connected to the inlet of the drain pot (35) by a connection seal (364). Shower tray device (1) according to claim 16 and at least claim 6,
characterized in that the shower tray device (1) comprises an annular seal (363) which, in the operating state, is arranged between the underside of the floor element (2) and the connection unit (36) and which holds the floor element (2) around the drainage opening (20) against the connection unit (36) seals, at least either the underside of the floor element (2) or the upper side of the connecting unit (36) having a planar sealing area which, in the operating state, extends horizontally beyond the ring seal, with the Ring seal (363) bears sealingly against the planar sealing area and, in particular, occupies a different position relative to the planar sealing area in each different position of the floor element (2) relative to the connecting unit (36), with the connecting unit in particular having a peripheral flange (362) which forms the planar sealing section and is sealingly connected to the socket element (361), or is encompassed by the socket element (361). Shower tray device (1) according to Claim 6 and one of Claims 15 to 17,
characterized in that
the shower tray device (1) comprises a drain box, which forms the support (3) and is arranged with its horizontal extension in the operating state completely outside the support area of the floor element (2), the drain box having a housing (31) which is at least partially forms the supporting surface (33) and the standing surface (34) of the carrier (3), and wherein the drain box, in particular the housing (31) of the drain box, forms the drain pot (35), the housing (31) in particular having a housing wall, horizontally enclosing a housing interior, wherein the base element (2) rests with its support surface on the housing wall when the shower tray device (1) is in operation and has a vertical offset downwards on its underside, starting from the housing wall towards the housing interior, which in particular is at least 5 mm, is in particular at least 10 mm, and/or wherein in particular the housing of the drain box is designed to carry water and forms the inlet and outlet (30) of the drain pot (35). Shower tray device (1) according to one of the preceding claims,
characterized in that
an absolute vertical lower end of the floor element (2) formed in a first longitudinal end (22) forming the first tenth of the longitudinal extension of the floor element (2) vertically by an offset of less than 3 mm from an absolute vertical lower end of the floor element (2), measured starting from the first longitudinal end and/or fourth and in particular fifth tenth of the longitudinal extension of the floor element (2), and/or that an absolute vertical upper end of a transverse center of the floor element (2) in the first longitudinal end (22) forming the first tenth of the longitudinal extension of the floor element (2) with a vertical offset to an absolute vertical upper end of the transverse center in the fourth tenth and/or fifth tenth of the longitudinal extension of the floor element (2 ) is offset which is at least twice an offset between absolute vertical lower ends of the floor element (2) formed within the first tenth and within the fourth and/or fifth tenth. Shower tray device (1) according to one of the preceding claims,
characterized in that
the offset between the absolute vertical lower end of the floor element (2) formed in the first longitudinal end (22) of the longitudinal extent of the floor element (2) and the absolute vertical lower end of the floor element formed in the third tenth of the longitudinal extent of the floor element (2). (2) less than a quarter of the offset between the absolute vertical lower end of the floor element (2) formed in the first tenth of the longitudinal extent of the floor element (2) and the absolute vertical lower end of the floor element formed in the sixth tenth of the longitudinal extent of the floor element (2). (2) and/or that the offset between the first tenth of the longitudinal extent of the floor element (2) formed absolute vertical lower end of the floor element (2) to the formed in the fourth tenth of the longitudinal extent of the floor element (2) absolute vertical lower end of the floor element (2) less than one fifth of the offset between the in the first tenth of the longitudinal extent of the floor element (2) formed absolute vertical lower end of the floor element (2) to the eighth tenth of the longitudinal extent of the floor element (2) formed absolute vertical lower end of the floor element (2). Shower tray device (1) according to one of the preceding claims,
characterized in that
the bottom element (2) has a greater vertical thickness at its second longitudinal end opposite the first longitudinal end (22) than at its first longitudinal end (22), with the upper side (21) in particular being in the longitudinal direction (X) from the second longitudinal end to the drainage opening ( 20) has a greater average gradient than from the first longitudinal end (22) to the drain opening (20). Shower tray device (1) according to one of the preceding claims,
characterized in that
the floor element (2) is designed as a cast mineral tile or as a plastic tile, and/or the floor element (2) can be cut to a shape whose horizontal boundary lies within the support area and is suitable in the cut shape for realizing the operating state of the shower base unit, and /or that the Shower tray device (1) comprises a cover (27) which is detachably connected to the base element (2) in the operating state and partially closes the drain opening (20). Support (3) for installing a floor element (2) on an unfinished floor (5) to implement an operating state in which the floor element (2) is integrated into a floor covering which is horizontally adjacent to the floor element (2) and which is on a supporting covering (6) is arranged, which is provided on the unfinished floor (5), wherein the floor element (2) extends with its horizontal extension along a horizontal plane in a horizontal longitudinal direction (X) with a length of at least 60 cm, in particular at least 80 cm, and in in a horizontal transverse direction (Y) with a width of at least 60 cm, in particular at least 80 cm, with the floor element (2) having a horizontal run-off section which covers a portion, in particular at least 10%, in particular at least 20% and/or at least 400 cm ² , the horizontal extent of the floor element (2) and within which a drainage opening (20) of the floor element (2) is formed, which extends from an upper side of the floor element (2) vertically through the floor element (2) to its underside, the underside of the floor element (2) forming a support surface within the run-off section,
characterized in that
the carrier (3) has a supporting surface (33) at one vertical end, with which it is arranged in the operating state in contact with the support surface formed on the underside of the floor element (2), and which has a standing surface (34) at its opposite vertical end for supporting on the unfinished floor (5), wherein the carrier (3) has a carrying element (301) and at least one standing element, in particular base (32), wherein the support element (301) forms the support surface (33) of the carrier and the at least one support element is designed to be supported on the subfloor (5) and to hold the support element (301) at a distance from the subfloor (5). is. Set comprising a shower base device (1) according to one of the preceding claims, wherein the set comprises several floor elements (2) which differ in their lengths and/or their widths and whose drain sections have the same horizontal extensions, and each of the floor elements (2) for Realization of the operating state of the shower tray device (1) is suitable, with the vertical thicknesses formed at the respective first longitudinal end and in particular the first transverse end (23) of the different floor elements (2) differing by less than 3 mm, in particular by less than 2 mm, wherein in particular the shower tray device (1) is designed according to one of Claims 6 to 22 and depending on the floor element (2) selected to implement the operating state of the shower tray device (1), the floor element (2) extends to different extents in the longitudinal direction (X) and/or transverse direction (Y) extends beyond the support (3). Room floor (100) comprising an unfinished floor (5), a supporting covering, in particular screed (6), a floor covering comprising in particular at least one tile (4), and a shower tray device (1) which comprises a floor element (2) which with its horizontal extension along a horizontal plane in a horizontal longitudinal direction (X) with a length of at least 60 cm, in particular at least 80 cm, and in a horizontal transverse direction (Y) with a width of at least 60 cm, in particular at least 80 cm, where the Floor element (2) has a horizontal drainage section which forms a part, in particular at least 10%, in particular at least 20% and/or at least 400 cm ² , of the horizontal extension of the floor element (2) and within which a drainage opening (20) of the floor element ( 2) which extends from an upper side of the floor element (2) vertically through the floor element (2) to its underside, at least one section of the floor covering being arranged next to the first longitudinal end (22) of the floor element (2), the upper side of which at the same vertical height as the upper side of the floor element (2) at the first longitudinal end (22), with at least one further section of the floor covering being arranged next to the first transverse end (23) of the floor element (2), the upper side of which is at the same vertical height as the top (21) of the floor element (2) is at the first transverse end (23),
characterized in that
the support covering has, horizontally next to the run-off section, an upper side (21) parallel to the horizontal plane, on which the floor element (2) rests with its contact area, in particular the floor covering and the floor element (2) being bonded across its contact area by means of a connecting layer, in particular tile adhesive are fastened to the support covering, and/or that the shower tray device (1) has a support (3) which has a support surface (33) at one vertical end and a standing surface (34) at its opposite vertical end, the support (3) the shower tray device (1) is supported with its standing surface (34) on the unfinished floor (5) and the floor element (2) rests with its supporting surface on the supporting surface (33) of the carrier (3). and is supported via the carrier (3) on the unfinished floor (5), in particular the supporting surface (33) adjoining the supporting covering and terminating vertically flush with the upper side of the supporting covering adjoining it. Method for installing a shower tray device (1) in a room floor (100), in which, in a first method step, a supporting covering with an upper side running parallel to a horizontal plane is realized on a raw floor (5),
characterized in that
In a second method step, a floor element (2) is arranged on the unfinished floor (5), with a section of a floor covering, in particular tiles (4), being laid on a horizontal longitudinal end and a horizontal transverse end of the floor element (2) next to the floor element (2). fixed to the upper side of the support covering, so that the section of floor covering is at the same vertical level as the horizontal ends of the floor element (2) arranged next to them, wherein during the second method step the floor element (2) is further provided with a run-off section, within which the floor element (2) has a drainage opening (20) and which forms at least 10% of the horizontal extent of the floor element (2), is arranged next to the supporting covering, the floor element (2), in particular by means of a connecting compound, for example tile adhesive, over a bearing area of the floor element ( 2) which amounts to at least 30% of a horizontal extension of the floor element (2) running along the horizontal plane and lies outside the drain section, on the upper side of the supporting covering and/or wherein in the first method step a support (3) of the shower tray device is attached (1) attached to a vertical end has a supporting surface (33) and which has a standing surface (34) at its opposite vertical end, with its standing surface (34) being set up on the unfinished floor (5) and the supporting covering lying horizontally next to the supporting surface (33) of the carrier (3). the unfinished floor (5) and in the second method step the floor element (2) is placed with a support surface located within the run-off section on the supporting surface (33) of the carrier (3) and is supported by this on the unfinished floor (5), with in particular before carrying out the second method step, a starting floor element, by means of which the second method step can be carried out, is cut to size with the realization of the floor element.

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