Shower tray element of a shower system

Abstract

Multi-part shower tray element that can be assembled on site, comprising a lower base element (20) and an upper cover element (30), wherein the cover element (30) has at least a first surface element (31) and a second surface element (33), wherein the second surface element (33) has a drainage device (80) for receiving a drainage system for draining fluid, the walkable area of ​​the first surface element (31) is relatively large compared to the area of ​​the second surface element (33), wherein the first surface element (31) has a first connecting element (32) and the second surface element (33) has a second connecting element (34) that can be engaged to connect the surface elements together, wherein the drainage device (80) includes a receptacle for a shower channel system.

Description

[0001] The invention relates to a shower tray element of a shower system comprising a lower base element and an upper cover element.

[0002] Shower tray elements of this type are currently popular due to their quick and easy installation. However, these shower trays become very unwieldy above a certain size. In particular, precisely aligning a drain or drainage system on the cover element with its counterparts on the base element is very difficult and virtually impossible to control. DE 102 30 557 C1 discloses a substructure for a shower tray with a drain, wherein the substructure consists of two superimposed elements: a grid structure formed from rigid foam strips with a flat or concave surface, and an intermediate plate made of reinforced rigid foam, which is provided with a permeable area for the drain.

[0003] The object of the invention is to propose a shower tray element for a shower system, wherein the shower tray element is easier to handle and easier to install, and thus the shower system is also easier to manufacture.

[0004] This problem is solved by a shower tray element according to claim 1 or 4. Advantageous further developments are specified in the dependent claims.

[0005] In particular, the problem is solved by means of a multi-part shower tray element that can be assembled on site, comprising a lower double element and an upper cover element, wherein the cover element has at least a first surface element and a second surface element, wherein the second surface element has a drainage device for receiving a drainage system for draining fluid, the walkable area of ​​the first surface element is relatively large compared to the area of ​​the second surface element, wherein the first surface element has a first connecting element and the second surface element has a second connecting element, which can be engaged to connect the surface elements to each other.

[0006] A key aspect of the invention is that, due to the special arrangement of the surface elements, each element is easy to handle individually, thus enabling particularly straightforward and precise connection to the wastewater system. Depending on the installation conditions, the surface elements can be provided in any desired size ratio to one another. This also makes it easy to complete the shower system.

[0007] In a specific advanced training, the base element and / or at least the second surface element are equipped with at least one drainage device to accommodate a drainage system for fluid runoff. In the simplest case, the drainage device is formed or can be formed by corresponding recesses in the elements. In some cases, pre-milled recesses are incorporated into the elements at the factory, allowing the drainage device to be completed on-site. The split surface element containing the drainage device is easy to handle because only this surface element needs to be positioned for connection to the base element. The remaining sections of the cover element can then be attached in a subsequent assembly step, independent of the positioning of the surface element containing the drainage device.The completed drainage system, integrated into the cover element and the base element, can then be connected to a pipe of a wastewater system.

[0008] According to an independent aspect of the invention, the problem is solved by a shower tray element comprising a lower base element and an upper cover element, wherein the cover element has at least a first surface element and a second surface element which can be connected to each other to form the cover element, wherein the second surface element can be received into the first surface element in such a way that the first surface element encloses the second surface element and wherein the second surface element is designed with at least one drainage device for receiving a drainage system for draining fluid.

[0009] Preferably, the shower tray element is designed for flush-to-floor installation. Flush-to-floor installation offers a particularly convenient solution in commercial and medical settings, allowing access to the shower area without obstacles. For example, wet areas in hospitals and care facilities must be freely accessible, but flush-to-floor installations also provide a high level of comfort in hotels and leisure centers.

[0010] Preferably, the drainage system is designed to accommodate a shower channel system. Shower channels ensure optimal water drainage and are suitable, for example, for separating the wet area from the rest of the floor. Preferably, the drainage system is designed to allow the integration of commercially available shower channel systems.

[0011] Preferably, the drainage device has a drain opening on the cover element for receiving a siphon. The drain opening is designed such that a siphon can be accommodated in or on it in order to connect the shower assembly to the wastewater system.

[0012] Preferably, the drainage system is designed with a recess on the top element or the second surface element to accommodate the drainage system. In a further embodiment, the recess is surrounded by a frame element arranged on the second surface element for attaching the surface covering outside the frame element. The surface covering can then be placed directly against the frame element to define the dimensions of the drainage system.

[0013] In one embodiment, the surface elements are designed with a substantially flat or slightly concave surface for the application of a fluid-impermeable, waterproof surface covering. Preferably, the surface is also continuously contoured. Depending on the design of the drainage system, the surface may be inclined towards it. For example, a 2% slope may be provided. A tile covering, for example, is used as the surface covering, with substantially waterproof grout.

[0014] Since the shower tray element according to the invention is designed in multiple parts, at least two parts, for easier handling, the surface elements must be designed in such a way that they can be connected to each other in a watertight manner. Only in this way can the shower tray element be used and put into operation accordingly. For this purpose, the first surface element has a first connecting element and the second surface element has a second connecting element, which are designed to be complementary to each other. The connecting elements are thus designed in such a way that they can be engaged with each other and the surface elements can be connected to each other in this way.

[0015] The connecting elements each have at least one protruding area for mutual engagement, such that these overlap when the surface elements are connected. This allows for a particularly easy-to-handle and secure connection between the two surface elements, as one protruding area is simply slid over the other.

[0016] It is also possible for one of the connecting elements to have at least one groove and the other connecting element at least one tongue, such that the tongue engages in the groove when the surface elements are connected. This type of connection also ensures precise alignment of the surface elements relative to each other.

[0017] If the surface elements are designed to be arranged side by side, the second surface element is preferably designed as an edge element such that the drainage device is located at an edge of the shower tray. If the drainage device includes, for example, a shower channel, it can be positioned at an edge of the shower tray element and thus of the wet area, thereby reliably protecting the transition to the rest of the floor from water ingress.

[0018] However, the surface elements can also be designed such that the second surface element can be received into the first surface element in such a way that the first surface element encloses the second surface element. The drainage device would then be arranged, for example, centrally in the second surface element.

[0019] Preferably, the shower tray element is essentially square, with an area ratio of the first surface element to the second surface element ranging from 2:1 to 3:1. This embodiment allows for different size ratios between the two surface elements. The (second) surface element, which includes the drain and has the smallest possible dimensions, is particularly easy to handle. Preferably, the second surface element is designed such that it has a side length ratio ranging from 1:4 to 1:6. The first surface element is designed accordingly so that both elements can be easily joined together.

[0020] The surface area ratios of the at least two surface elements in the aforementioned preferred areas are designed such that the accessible area of ​​the shower tray element (first surface element) is relatively large compared to the second area, which contains the drainage device. This makes the second surface element easy to handle for installation on the wastewater system.

[0021] The base and / or cover element can be made of particle foam, in particular EPS or EPP, or of other suitable plastics.

[0022] In a special embodiment, the cover element is made of particle foam and has a density in the range of 80 g / l to 170 g / l, preferably from 100 g / l to 150 g / l, in particular from about 125 g / l.

[0023] The base element can also be made of particle foam and have a density in the range of 20 g / l to 33 g / l, in particular of about 25 g / l.

[0024] In a specific embodiment, the cover element has a fluid-impermeable coating element on its upper surface, intended for use during installation. This coating element is designed to receive the surface covering and to ensure a fluid-tight installation of the shower tray element in wall and / or floor sections (essentially in the wet room area). The water-impermeable coating is, for example, a bonded film, particularly a velour element, which is designed in two parts such that a first film element can be attached to the first surface element and a second film element to the second surface element, and that the film elements overlap at least in the area of ​​the connecting elements when the surface elements are joined. The surface covering is then applied to this layer.

[0025] The surface elements are usually pre-coated with the foil at the factory. In this case, the foils are attached to the individual surface elements and have overlapping areas. When surface elements are joined together, the overlapping areas of both surface elements can then be glued together to ensure watertightness.

[0026] It is also possible to apply the membrane afterwards, i.e., after the shower tray element has been installed. The membranes are then glued together on site. If necessary, the membrane can then be divided into two parts; only the drain opening needs to be left out.

[0027] In one embodiment, the foil elements each have at least one projecting area such that the foil elements extend beyond the shower tray element and its edges, allowing the projecting areas to be connected to the wall and / or floor sections. These projecting areas serve as a seal against the wall and / or floor sections. Conventional systems use sealing strips for this purpose, which are no longer necessary in the inventive design. Since the projecting areas are integral parts of the foil elements, they can be easily connected to the wall and / or floor sections, for example, by gluing, even after the cover element has been installed, as they are already correctly positioned by the foil element(s). This provides a simple and effective seal.

[0028] The protruding areas can also be located in the area of ​​the connecting elements of the respective surface elements. This would increase the overlap area of ​​the foil elements. Since the first and second surface elements of the cover element are preferably connected to each other via the corresponding connecting elements, an overlapping foil connection is possible here – in the area of ​​the connecting elements – even without protruding areas.

[0029] Corner sections of the protruding elements can be folded and connected to the corresponding wall and / or floor sections, ideally by gluing. Alternatively, the corner sections can be notched or cut out. The foil elements can then be easily glued to the wall and / or floor sections without creases or overlaps. Additional inside or outside corner pieces, i.e., corner-forming elements, can then be applied over the corresponding corner sections that have been glued to the wall and / or floor sections, ensuring a reliable seal between the shower tray element and the wall and / or floor sections.

[0030] Preferably, a stress-compensating element is provided, which is designed to be attached or mounted on an underside of the cover element intended for use and which counteracts deformation of the cover element due to stresses introduced into the cover element by the coating element, at least when the cover element is not installed. That is, the coating element on the top side of the cover element may cause distortion or similar stress effects on the cover element, so that it is deformed when not installed. This distortion is caused in particular by the fact that the coating element must be installed into the slope of the cover element; the coating element thus creates a so-called cupping effect on the cover element, so that it, for example, deflects when not yet installed.

[0031] This is detrimental to the sale of shower tray elements, especially the cover elements, as these are damaged and / or appear to be affected by the warping. To prevent this deformation, a stress-compensating element is provided, which is preferably made of the same material as the coating element. This is the simplest way to compensate for the stress effects.

[0032] Preferably, the first and / or the second surface element are each designed with a stress-relieving element. Whether a surface element should be designed with a stress-relieving element depends on its size and shape. In principle, the stress-relieving element ensures the dimensional stability of the cover element or the surface elements.

[0033] In a further training course, it is proposed that the base element be constructed in two or more layers, with two or more parallel, stacked surface elements. This can be particularly advantageous when the base element needs to be quickly and easily adapted to existing building conditions, such as an existing screed floor. If, for example, the scope of delivery includes three surface elements for constructing the base element, it can be decided, depending on the building conditions, i.e., the desired height of the base element, whether only one, two, or three surface elements are used for its construction.

[0034] In an advantageous embodiment, the surface bodies are of different widths, so that by combining different surface bodies to construct a base element, a variety of possible overall heights of the base element can be achieved.

[0035] In an unstressed method for manufacturing a shower system comprising a shower tray element with a lower base element and an upper cover element, wherein the cover element has at least one first surface element and one second surface element, wherein the base element and / or at least the second surface element are designed with a drainage device for receiving a drainage system, The following procedure can be used: - Preparation, in particular cutting out the drainage device in the base element and / or in the cover element, - Attaching, in particular gluing and aligning the base element to the designated wall and / or floor sections; - Inserting at least parts of the drainage system into the drainage device on the base element, - Connecting the drainage system to a wastewater pipe, - Attaching, in particular gluing and aligning, the second surface element on the base element, - Inserting at least parts of the drainage system into the drainage device on the second surface element and connecting the parts of the drainage system in the second surface element to the parts of the drainage system in the base element, - Attaching, in particular gluing and aligning the first surface element on the base element and connecting the first and second surface elements by means of a first connecting element on the first surface element and a second connecting element on the second surface element to form the cover element, - Sealing the built-in shower tray element against the wall and / or floor sections, - Final assembly of the drainage system.

[0036] It should be noted that the sequence of steps may be different and individual procedural steps may be swapped.

[0037] Using this method, the shower tray element according to the invention can be easily and precisely installed. The drainage system described here includes, for example, a drain body with a drain outlet that can be connected to a downstream wastewater pipe. The drain body with drain outlet is recessed into the base element. The other components of the drainage system, such as a stainless steel grate, are then recessed into the drain assembly of the cover element. As a rule, the cutouts for the drain assembly are already pre-cut and easy to cut out and / or are already prefabricated.

[0038] The shower tray can also be installed without a base element if the substructure is suitable. In this case, the drainage system is only integrated into the cover element. Alternatively, the drainage system could also be implemented solely via the cover element.

[0039] The invention is described below with reference to exemplary embodiments, which are explained in more detail with reference to the figures. These show: - Fig. 1 an embodiment of the shower tray element in an exploded view with base and cover element; - Fig. 2 the shower tray element according to the embodiment according to Fig. 1, in particular showing the two-part deck element; - Fig. 3 the shower tray element according to the embodiment according to Fig. 1, where the element is shown in its assembled state; - Fig. 4 the shower tray element according to the embodiment according to Fig. 1 in a side view; - Fig. 5 the shower tray element according to the embodiment according to Fig. 1 in front view; - Fig. 6 the shower tray element according to the embodiment according to Fig. 1 in top view; - Fig. 7 the shower tray element according to the embodiment according to Fig. 1 in a cutaway side view, showing a fluid-impermeable coating element arranged on the cover element; - Fig. 8 another embodiment of the shower tray element with fluid-impermeable foil elements with protruding areas; - Fig. 9 another embodiment of the shower tray element in a side view in section, with stress equalization elements and fluid-impermeable foil elements with protruding areas; - Fig. 10 Another embodiment of the shower tray element in a perspective exploded view.

[0040] In the following description, the same reference numbers are used for identical and equivalent parts.

[0041] In Fig. Figure 1 shows the basic structure of an embodiment of a shower tray element 10 as a perspective exploded view. The shower tray element 10 comprises a top cover element 30, which here has a flat surface for the application of a waterproof covering. A base element 20 is provided on the underside of the cover element 30 and can be permanently bonded to it by an adhesive layer. A drain pipe (not shown) or at least parts of a drainage system can be accommodated in the base element 20.

[0042] In this embodiment, the base element 20 comprises two plane-parallel surface bodies 21, 22, which can be connected to each other over a surface, thus enabling the base element 20 to be formed in different thicknesses.

[0043] The cover element 30 is formed from two surface elements 31, 33, which in this embodiment are arranged side by side. In this embodiment, a first surface element 31 forms the largest part of the cover element 30. A second, essentially rectangular surface element 33 has a drainage device 80 for used water with a channel-shaped recess 81, in which a drainage opening 82 is provided. A siphon (not shown) or, more generally, a drainage system can be inserted via the base element 20 towards the drainage opening 82, and can be received into the drainage device 80. As a distal component of a drain pipe, the siphon provides a trap to prevent odors, as is known per se.

[0044] The channel-shaped recess 81, i.e., a shower channel (or a shower channel system inserted into the recess), enables, particularly when positioned in an edge area of ​​the shower tray element 10, reliable water drainage and, if necessary, suitable separation between the wet area and the rest of the floor area. The channel-shaped recess 81 is surrounded here by a frame element 83, so that a suitable surface covering, e.g., a tile covering, can be applied to this frame element 83. This precisely defines the shower channel or the drainage system.

[0045] The two-part design of the cover element 30 facilitates its handling, which is particularly advantageous for large shower trays. This allows the surface elements 31 and 33 to be attached to the base element 20 in several assembly steps. In particular, the surface element with the drain device 80, which in this embodiment has smaller dimensions (essentially rectangular) compared to the first surface element, can thus be precisely "docked" to the drain pipe or to the components of the drainage system in the base element.

[0046] The two surface elements 31, 33 of the cover element 30 each have a connecting element 32, 34, by means of which the surface elements 31, 33 can be connected to each other. Thus, the first surface element 31 has a projecting area pointing towards the second surface element 33 (when the latter is connected to the first surface element). Correspondingly, the second surface element 33 also has a projecting area pointing towards the first surface element 31. To connect the two surface elements, the projecting areas can be slid into or over each other and overlap.

[0047] It would also be possible to connect the surface elements using a tongue and groove joint.

[0048] In this embodiment, the surface elements 31, 33 are arranged side by side. It is also possible to design the surface elements such that the second surface element, with a possibly centrally arranged drainage device, can be received into the first surface element.

[0049] Fig. 2 shows the arrangement according to Fig. 1, where the first surface element 31 is separated from the second surface element 33. Here, the first connecting element 32 on the first surface element 31 and the second connecting element 34 on the second surface element 33 are particularly visible. The design of the connecting elements allows for precise positioning of the surface elements relative to each other, as the overlap area of ​​the connecting elements is precisely defined. The first surface element 31 is slid against the second surface element 33 in the direction of the arrow for assembly.

[0050] Fig. Figure 3 shows a perspective view of the combined shower tray element 10 with base element 20 and cover element 30.

[0051] A side view of the shower tray element 10 according to the embodiment shown. Fig. 1 is in Fig. Figure 4 shows a slope on the surface of the first surface element 31 towards the second surface element 33. This slope ensures water drainage via the drainage device 80.

[0052] Fig. Figure 5 shows the shower tray element 10 in front view and Fig. 6 in top view. The top view clearly shows the relative sizes of the two surface elements 31 and 33. The second surface element 33, which includes the drainage device 80, is significantly smaller to facilitate its attachment to the drain pipe or to the parts of the drainage system in the base element.

[0053] A cutaway side view of the shower tray element 10 according to the embodiment shown. Fig. 1 is with Fig. Figure 7 shows that a waterproof layer is applied to each of the surface elements. These layers are designed to overlap when surface elements 31 and 33 are connected. The waterproof layer is, for example, a film consisting of a first film element 50 and a second film element 54. The first film element 50 is applied to the first surface element 31, and the second film element 54 is applied to the second surface element 33. Typically, the film elements are pre-attached to the surface elements at the factory, for example, by gluing. Therefore, it is necessary to design the waterproof layer in two parts, corresponding to the surface elements. However, it would also be possible to apply the film in one piece to the already mounted surface elements. In this case, only the drainage system would need to be left out.

[0054] It should be noted that the in Fig. The seven foil elements 50 and 54 shown in the drawing are not depicted to scale. In practice, the foil elements lie directly on the surface elements 31 and 33, and are therefore connected to them. The spacing between the foil elements and the surface elements in the drawing serves only to better illustrate the individual foil elements. It also makes the overlap area clearly visible.

[0055] With Fig. Figure 8 shows a further embodiment of the shower tray element according to the invention, wherein the foil elements 50, 54 already described above have projecting areas 51, 52, 55, 56. The projecting areas are designed such that they extend beyond the cover element and, moreover, beyond the entire shower tray element and its edge areas. The projecting areas 51, 55 serve, on the one hand, to be connected to wall and / or floor sections into which the shower tray element is to be installed, thus ensuring a fluid-tight seal for the shower tray element in the designated area. On the other hand, the projecting areas 52, 56 serve to be bonded together in an overlapping manner in the area of ​​the connecting elements 32, 34. These projecting areas increase the overlap area.The protruding areas eliminate the need for additional and commonly used sealing tapes to seal the shower tray element against wall and / or floor sections.

[0056] Fig. Figure 9 shows a side view of the shower tray element in section. The view essentially corresponds to the one in Fig. Figure 7 shows the second foil element 54 with projecting areas. Furthermore, in this embodiment, an additional coating 71, 72 is applied to an underside intended for use of the cover element. This coating, here one element 71, 72 on each of the surface elements 31, 33, is preferably made of the same material as the first and second foil elements 50, 54 on the top side of the cover element 30.

[0057] The coating elements are provided here as a first and a second stress-equalizing element 71, 72 and counteract the stresses introduced into the surface elements 31, 33 of the cover element 30 by the foil elements 50, 54 and any associated deformation of the cover element or the surface elements. The stress-equalizing elements 71, 72 thus act as counter-tension elements and keep the surface elements dimensionally stable in the uninstalled state. The cover element is bonded to the base element, with the stress-equalizing elements remaining attached to the cover element.

[0058] In a perspective view, with Fig. Figure 10 shows another embodiment of the shower tray element 10 with a split cover element. It is evident here that the foil elements 50, 54 have protruding areas 51, 55, but not in the area of ​​the connecting elements 32, 34. Here, the foils overlap anyway when the connecting areas overlap.

[0059] It should be noted that this is related to the Fig. The shower tray elements shown in sections 1 to 6 are depicted without foil elements. Furthermore, no surface covering is shown.

[0060] As explained above, dividing the cover element of a shower tray into two parts significantly simplifies installation. The first panel is designed to essentially form the walkable area of ​​the shower tray, while the second panel, which also incorporates the drain, is as compact as possible. This relatively small second panel, compared to the first, makes connecting the drain to the wastewater system particularly easy. Of course, any desired size division can be accommodated, allowing for different installation conditions. Furthermore, with a suitable base or substructure, the cover element can also be used effectively without a base. Reference symbol list 10 shower tray elements 20 base element 21 Surface bodies 22 surface bodies 30 Deck element 31 First surface element 32 First connecting element 33 Second surface element 34 Second connecting element 50 First slide element 51 Overhanging area 52 Protruding area (in the area of ​​the connecting element) 54 Second slide element 55 Overhanging area 56 Protruding area (in the area of ​​the connecting element) 71 First stress equalization element 72 Second stress equalization element 80 Drainage device 81 Exclusion 82 Drainage opening 83 Frame element

Claims

[1] Multi-part shower tray element that can be assembled on site, comprising a lower base element (20) and an upper cover element (30), wherein the cover element (30) has at least a first surface element (31) and a second surface element (33), wherein the second surface element (33) has a drainage device (80) for receiving a drainage system for draining fluid, the walkable area of ​​the first surface element (31) is relatively large compared to the area of ​​the second surface element (33), wherein the first surface element (31) has a first connecting element (32) and the second surface element (33) has a second connecting element (34) that can be engaged to connect the surface elements together, wherein the drainage device (80) includes a receptacle for a shower channel system. [2] Shower tray element according to claim 1, characterized by, that the base element is designed with at least one drainage device (80) for receiving a drainage system for the drainage of fluid. [3] Shower tray element according to claim 1 or 2, characterized by , that the second surface element (33) is designed as an edge element and includes the drainage device (80), wherein the drainage device (80) is arranged at an edge area of ​​the shower tray element (10). [4] Shower tray element comprising a lower base element (20) and an upper cover element (30), wherein the cover element (30) has at least a first surface element (31) and a second surface element (33) which can be joined together to form the cover element (30), wherein the second surface element (33) can be received into the first surface element (31) such that the first surface element (31) encloses the second surface element (33) and wherein the second surface element (33) is provided with at least one drainage device (80) for receiving a drainage system for draining fluid, wherein the drainage device (80) includes a receptacle for a shower channel system. [5] Shower tray element according to claim 1, characterized by that it can be installed flush with the floor. [6] Shower tray element according to one of the preceding claims, characterized by , that the drainage device (80) has a drainage opening (82) on the cover element for receiving a siphon. [7] Shower tray element according to one of the preceding claims, characterized by , that the first surface element (31) and / or the second surface element (33) are designed with a slope towards the drainage device (80). [8] Shower tray element according to one of the preceding claims, characterized by , that the connecting elements (32, 34) each have at least one protruding area which overlaps when connected to each other surface elements (31, 33). [9] Shower tray element according to one of the preceding claims, characterized by , that one of the connecting elements has at least one groove and the other connecting element has at least one tongue, wherein the tongue engages in the groove in the case of interconnected surface elements (31, 33). [10] Shower tray element according to one of the preceding claims, characterized by, that the shower tray element (10) is essentially square, with an area ratio of first surface element (31) to second surface element (33) in the range of 2 to 1 to 3 to 1. [11] Shower tray element according to one of the preceding claims, characterized by , that the second surface element (33) is designed such that it has a side length ratio in the range of 1 to 4 to 1 to 6. [12] Shower tray element according to one of the preceding claims, characterized by , that the cover element (30) is formed from particle foam and has a density in the range of 80 g / l to 170 g / l, preferably from 100 g / l to 150 g / l, in particular of about 125 g / l. [13] Shower tray element according to one of the preceding claims, characterized by, that the cover element (30) has on a top surface intended for use of the cover element a fluid-impermeable coating element (50, 54) for receiving the surface covering and for fluid-tight installation of the shower tray element in wall and / or floor sections. [14] Shower tray element according to claim 13, characterized by , that the fluid-impermeable coating element is provided as a film to be bonded (50, 54), in particular as a velour element. [15] Shower tray element according to claim 14, characterized by , that the film is formed in two parts, wherein a first film element (50) is attached or attachable to the first surface element (31) and a second film element (54) is attached or attachable to the second surface element (33), and that the film elements (50, 54) overlap at least in the area of ​​the connecting elements (32, 34) when surface elements (31, 33) are connected to each other. [16] Shower tray element according to claim 15, characterized bythat the foil elements (50, 54) each have at least one protruding area that extends beyond the shower tray element (10) and its edge areas, so that the protruding areas can be connected to the wall and / or floor sections. [17] Shower tray element according to claim 16, characterized by , that the areas (52, 56) projecting beyond the connecting elements (32, 34) overlap for fluid-tight installation of the shower tray element (10) when the surface elements (31, 33) are connected. [18] Shower tray element according to one of claims 13 to 17, characterized by, that a stress compensation element (71, 72) is provided which can be attached or is attached to a bottom surface intended for use of the cover element and which counteracts a deformation of the cover element (30) due to stresses introduced into the cover element by the coating element, at least when the cover element (30) is in a non-installed state. [19] Shower tray element according to claim 18, characterized by , that the stress equalization element (71, 72) is made of the same material as the fluid-impermeable coating element. [20] Shower tray element according to claim 18 or 19, characterized by , that the first surface element (31) and / or the second surface element (33) is each formed with a stress equalization element (71, 72). [21] Shower tray element according to one of the preceding claims, characterized by, that the base element (20) is constructed in two or more layers with two or more plane-parallel superimposed surface bodies (21, 22). [22] Shower tray element according to one of the preceding claims, characterized by , that the base element (20) is made of particle foam and has a density in the range of 20 g / l to 33 g / l, in particular of about 25 g / l.

Images