Method and kit for installing a shower tray in wet areas used in the repair of buildings

Abstract

Kit for installing a shower tray in sanitary rooms with prefabricated building elements that can be assembled on site, consisting of at least one shower tray with a shower tray base (2), a wall panel (3, 4) which is sealed to the shower tray via a connection joint (26) and a floor wall profile (6) connecting the wall panel (3, 4) to the shower tray, the floor profile leg (7) of which is connected to the underside of the shower tray base (2) and the wall profile leg (8) of which forms a support (10, 16) for the pivotable wall panel (3, 4), which, when pivoted, applies a lower, floor-side pressure surface (17) to the facing end face (24) of the shower tray base (2) by forming the connection joint (26).

Description

[0001] The subject matter of the invention is a method and a kit for the installation of a shower tray during the renovation of old buildings according to the preamble of patent claim 1.

[0002] In the renovation of old buildings, it is common practice to create wet rooms by incorporating a wet cell into the existing structure. EP 2 182 140 B1 discloses covering the walls and floor with water-repellent panels. According to DE 7 429 246 U1, tiles can also be used instead of the panels.

[0003] However, in all renovations of old buildings to create wet rooms, the problem is that the corner and floor connections are heavily exposed to moisture and are generally unable to withstand long-term exposure to moisture. EP 2 182 140 B1 therefore proposes a trough-shaped, beveled metal part as the shower tray, with the wall elements resting on its surrounding, rolled edge. The resulting connection joint must be sealed with a sealant.

[0004] Especially with tile joints, it is well known that the joints develop hairline cracks and are no longer tight. Likewise, grouting shower trays with a wall connection using permanently elastic sealant has the disadvantage that, on the one hand, the permanently elastic sealant becomes moldy or rotten and, on the other hand, it tears in the event of strong temperature changes or structural movement, which means that the wall connection is no longer tight.

[0005] Furthermore, it is known to construct a wet room in such a way that waterproof panels are attached to a wall, wherein the attachment is carried out using an adhesive process and the corner and floor connections of these adjoining panels are provided with a continuous silicone joint.

[0006] However, this has the disadvantage that the silicone joints can crack if the building moves and cannot withstand large temperature differences because the silicone joints tend to crack if the building elements move.

[0007] Another disadvantage of the well-known silicone joints is that they are visible from the moisture-exposed side, which means that hairline cracks and other damage are also visible and, in the long run, lead to an unsightly appearance of the sanitary unit.

[0008] Other joint sealing systems are also known in which a watercourse, caused by damage, flows from an upper entry point towards the shower tray below. This means that in the event of a leak, the leaked water flows downwards into a specific area and is absorbed by the shower tray. However, such damp joints are undesirable due to the risk of germs and fungal growth. They can also cause undesirable odors.

[0009] The invention is therefore based on the object of creating a method and a kit for plate-shaped wet room sealing, in which an improved seal between the shower tray and the wall panels adjoining the shower tray is provided.

[0010] To solve the problem posed, the invention is characterized by the technical teaching of the independent patent claim.

[0011] Accordingly, a kit for the installation of a shower tray in sanitary rooms with prefabricated components that can be assembled on site is proposed, consisting of at least one shower tray with a shower tray base, at least one wall panel that is sealed to the shower tray via a horizontal floor-side connection joint and a floor wall profile connecting the wall panel to the shower tray, the floor profile leg of which is connected to the underside of the shower tray base and the wall profile leg of which forms a support for the pivoting wall panel, which, when pivoted, applies a lower, floor-side pressure surface to the facing end face of the shower tray base, forming a contact force and forming the connection joint.

[0012] An advantageous feature is that a floor-side horizontal connection joint between a shower tray and a wall panel sealed on the shower tray is formed by arranging a connection joint, free of sealant from the visible side, between the wall panel and one end of the shower tray in the connection area.

[0013] There is therefore no longer any visible silicone joint in the horizontal connection joint.

[0014] Implementing the technical teaching of the invention required overcoming considerable difficulties. These included not simply keeping a floor-side connecting joint free of sealant, but ensuring that the connecting joint was minimal and preferably had a joint width of 0-0.3 mm. It was even possible to make the connecting joint invisible and thus preferably have a joint width of 0 mm. To achieve such a minimal joint width, it was necessary to create the connecting joint under high contact pressure between the associated structural elements in order to minimize it to the required size.

[0015] This was achieved by ensuring that the vertical wall panel, with its inner side forming the connecting joint, pressed against the corresponding end face of a shower tray base under high contact pressure. According to the invention, the high contact pressure of the inner side of the wall panel against the opposite end face of the shower tray base was achieved by using the wall panel as a two-armed lever, with the wall panel pivoting around the pivot bearing of a floor wall profile connected to the shower tray base.The wall panel is therefore used in the manner of a 2-armed lever and the upper, longer lever arm is used to exert the pivoting force generated by the installer's hand pressure, while the shorter lever arm, which is intended to create the floor-side connection joint, achieves a high contact pressure on the opposite end of the shower tray floor in order to create a minimal connection joint.

[0016] It is therefore a tool-free assembly of a pivoting wall panel that can be pivoted about a horizontal pivot axis of a pivot bearing that is arranged on the inside of the wall profile leg.

[0017] By leveraging the leverage, the bottom section of the wall panel will press against the opposite end of the shower tray base with its lower section under high contact pressure, forming a preferably invisible connecting joint there. The high contact pressure generated by the leverage ensures that any inaccuracies in the longitudinal extension of the connecting joint caused by the structural element are compensated for by the high contact force, thus creating a uniform and ideally invisible connecting joint extending along the entire length.

[0018] To form the pivot bearing for the vertical wall panel, it is preferred if the floor-wall profile, which is attached to the outside of the wall panel with the pivot bearing, is fastened with its horizontal floor profile leg to the underside of the shower tray floor and is connected there to it preferably via load-transmitting, elastic sealing connections.

[0019] When designing the horizontal pivot bearing, it is preferred if the vertical floor profile leg of the floor-wall profile has at least one support web directed towards the rear of the wall panel, which serves as a pivot bearing for the wall panel which can be pivoted there during assembly and which can be pivoted into an associated sealing chamber of the floor-wall profile filled with not yet cured sealing compound by means of a pivoting movement.

[0020] If the vertically aligned wall panel is inserted, preferably at a pivot angle of, for example, 10 degrees, with its lower base side into the space between the front of the horizontal shower tray base and the vertical wall profile leg at an angle to the vertical and then pivoted about a horizontal axis into the vertical, the support web directed towards the rear of the wall panel on the inside of the vertical wall profile leg acts as a pivot bearing of a two-armed lever, which, according to the law of the lever, amplifies the pivoting force acting on the wall panel many times over, so that the lower circumferential edge of the wall panel pivoted into the vertical position rests against the front of the shower tray base under great pressure and seals it there - preferably without any joints.

[0021] The lower, inward-facing section will preferably be seamlessly and sealant-free, but sealed against the front of the shower tray floor. Therefore, there are no visible silicone joints that could collect dirt.

[0022] This creates a seamless corner connection between the horizontal shower tray base and the vertical wall panel in the area of ​​the corner connection, because the pivoting movement of the wall panel in the direction of the floor-wall profile arranged behind it causes a slight deformation of the lower part of the wall panel, so that the lower part of the wall panel rests against the vertically facing end face of the shower tray base under great pressure, thereby forming a linear seal that is preferably free of sealant.

[0023] It is preferred if the wall panel is made of a water-repellent material, preferably a cast mineral material. This consists of tiny, powdered ceramic particles bound in a plastic matrix. The typical panel thickness ranges between 5 and 80 mm. Instead of a water-repellent, cast mineral material, other materials can also be used for the wall panel and / or the shower tray base, particularly water-repellent coated wood panels, plastic panels, or multi-layer panels, where at least the moisture-exposed inner side is water-repellent.

[0024] In a further development, a sealant-filled sealing chamber can be provided beyond and below the sealant-free linear connection joint between the vertical wall profile leg and the lower edge of the retractable wall panel. The seal to the vertical wall profile leg is therefore arranged on the non-visible side (rear side) of the wall profile leg.

[0025] This type of sealing method, which involves pivoting the wall panel over a support point on the profile side, located away from the corner joint, creates a very strong leverage force on the lower area of ​​the wall panel. This leverage is used to create an absolutely tight, and preferably seamless, connection in the area of ​​the corner joint to be sealed. This creates a seamless, preferably invisible sealing joint that is only sealed in the area of ​​a sealing chamber behind it with a sealant that is still liquid during installation. Therefore, the sealing of the connecting joint is not carried out on the visible side of the wall panel, but on its back.

[0026] The invention therefore also deviates from the conventional form of trough-shaped shower trays and instead uses a horizontal, slab-shaped shower tray base, preferably made of cast solid surface material. Consequently, the surrounding, projecting edges of shower trays, onto which wall panels are sealed in the prior art, are dispensed with.

[0027] Of course, the invention also allows for a trough-shaped shower tray and only requires that the wall panel to be sealed is attached with its connecting joint to the front side of a horizontal edge of the shower tray.

[0028] When using a plate-shaped shower tray base, however, the sealing takes place in the area of ​​the vertical front side of the horizontal shower tray base and the lower inside of the wall panel, which is pressed against the front side of the shower tray base with high pressure and forms a preferably seamless sealing connection.

[0029] The term “seamless sealing connection” refers to minimum joint widths in the range between 0 and 1 mm, but preferably a joint width of 0 mm.

[0030] In the preferred embodiment, the connecting joint formed in the area of ​​the corner joint provides connecting surfaces that are inclined at an angle of 90° to each other. However, the invention is not limited to this. It can be provided that the front side of the shower tray base has a slope, and the inner side of the wall panel, which rests against it with high contact pressure, has a complementary slope. Of course, this area of ​​the connecting joint can also contain interlocking, complementary grooves or profile webs of the two parts to be joined.

[0031] A method for producing such a sealed, preferably jointless, floor-side corner connection consists in that, in a first process step, the plate-shaped shower tray base is connected to the floor-side, horizontal floor profile leg with the aid of sealing compounds arranged in sealing chambers, wherein the sealing compounds consist of adhesive clusters or adhesive beads of a permanently elastic sealing compound which solidifies during curing but remains permanently elastic.

[0032] This creates a stable adhesive bond between the bottom side of the shower tray and the horizontal base profile leg of the floor-wall profile. It is preferable if, in this first process step, the bond between the base profile leg of the floor-wall profile and the bottom side of the shower tray is created in the factory using the permanently elastic adhesive, so that these two parts arrive at the installation site already connected by elastic sealing compounds.

[0033] Instead of such an adhesive connection, a screw, wedge or other non-detachable mechanical connection can also be provided.

[0034] In a second process step, a sealing chamber on the inside of the vertical wall profile leg extending into the area of ​​the connection joint is filled with a hardenable, permanently elastic sealant, whereby the sealing chamber in the wall profile leg extends to the front side of the shower tray base.

[0035] In a third process step, the wall panel is inserted at an angle of, for example, 10 degrees to the vertical with its bottom side into the space between the sealing chamber on the vertical wall profile leg, which is still filled with liquid sealant, and the front side of the shower tray base, so that at least the lower front side of the wall panel protrudes into the sealing chamber.

[0036] In a fourth process step, the wall panel is pivoted into the vertical position, whereby the back of the wall panel is supported as a pivot bearing on the supporting web of the vertical wall profile leg directed towards the back of the wall panel.

[0037] Since the support web acts as a pivot bearing, the desired leverage effect on the lower part of the vertical wall panel occurs, which ensures that the lower part of the wall panel pivots around this profile-side support and rests with its front side on the facing end of the shower tray floor, thereby forming a preferably invisible and sealed line contact.

[0038] It is preferable if the sealing chamber is filled with a sealant that has not yet set during this pivoting and installation process, so that during the pivoting process, a portion of the sealant also reaches the area of ​​linear contact between the two parts that come into contact with each other and are subject to high contact pressure, namely between the front side of the slab-shaped shower tray base and the lower inner side of the vertical wall panel. If a transparent sealant is used, it is permissible for it to also penetrate the connecting joint and seal it.

[0039] The advantage of the inventive measure is that, with a tool-free lever action, a very high contact pressure is achieved between the lower part of the vertical wall panel and the front of the shower tray base, which is not possible with other measures. This requires a support forming the pivot bearing on the inside of the vertical wall profile leg, which transforms the wall panel into the desired two-armed lever.

[0040] The pivot bearing is preferably designed as a horizontally directed support web integrally formed on the inside of the vertical wall profile leg. However, other parts of the profile can also be used to form the pivot bearing. For example, instead of the support web, it is possible to provide a wedge-shaped element on the inside of the wall profile leg, which forms the pivot bearing and simultaneously forms an insertion bevel for inserting the bottom side of the wall panel into the space between the front of the shower tray base and the inside of the vertical wall profile leg. The insertion bevel is advantageously directed towards the profile-side sealing chamber, ensuring secure insertion of the bottom side of the wall panel into the sealing chamber.

[0041] The invention is not limited to a factory-made connection between the bottom side of the shower tray base and the base profile leg of the floor-wall profile. However, this is preferred. In the DIY market, these parts (shower tray base, floor-wall profile, and associated sealants) can also be sold and provided as separate components.

[0042] Particularly in the case of renovations of old buildings, it can happen that there are no right-angled walls on site and it is therefore necessary to first install the floor-wall profile on the underside of the shower tray base at the correct angle in order to then create the required invisible linear sealing connection between the inside of the wall panel and the front side of the shower tray base using the technical teaching according to the invention of a pivoting movement of the vertical wall panel around a horizontal profile-side support line.

[0043] The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.

[0044] All information and features disclosed in the documents, including the abstract, in particular the spatial configuration depicted in the drawings, could be claimed as essential to the invention, insofar as they are novel, individually or in combination, compared to the prior art. The use of the terms "essential" or "according to the invention" or "essential to the invention" is subjective and does not imply that the features so named must necessarily be part of one or more patent claims.

[0045] The invention is explained in more detail below with reference to drawings illustrating only one embodiment. Further essential features and advantages of the invention will become apparent from the drawings and their description.

[0046] They show: Figure 1 : Perspective view of an embodiment of the invention with a fully assembled floor-wall sealing joint between a shower tray base and a vertical wall panel. Figure 2 : Section through the arrangement according to Figure 1 Figure 3 : Another illustration compared to Figure 2 with further details and variations Figure 4 : A further modification with regard to the shape of the support 16

[0047] In Figure 1A kit 1 is generally shown, consisting of a vertical wall panel 3, which is connected to another wall panel 4 via a vertical corner connection (not shown in detail). Both wall panels 3, 4 are sealed to a shower tray base 2, which is part of a sanitary unit.

[0048] In the exemplary embodiment shown, a floor-wall profile 6 is provided as a further part of the kit 1, which preferably consists of an extruded aluminum profile and consists of two legs arranged perpendicular to one another, namely a floor profile leg 7 and a wall profile leg 8 adjoining it vertically.

[0049] The present drawing description describes a corner connection between the front side of the shower tray base 2 and one wall panel 3. In another embodiment, it can also be provided that the two wall panels 3, 4 are sealed together in the same way in the area of ​​the corner connection 5.

[0050] In the invention, it is preferred if - as described in the general part - the floor profile leg 7 is already connected to the underside of the shower tray base 2 in the factory via the permanently elastic sealing compounds 13. The Figure 3that for the assembly of the underside of the shower tray base 2 with a permanently elastic sealing compound 13, this first has a hat 13' shown in dashed lines and the permanently elastic sealing compound, which was previously conical or hat-shaped, is now compressed broadly and thus widens in the truncated cone shape and lies sealed against the underside of the shower tray base 2, as shown in Figure 2 is shown.

[0051] This results in a large-area, pressurized adhesive bond because part of the adhesive is displaced from the conical state 13' into the frustoconical state of the sealing compound 13, resulting in an improved adhesive bond. Furthermore, with this arrangement, it is preferred if the underside of the shower tray rests on spaced-apart support webs 10, which project above lower stop webs 9, so that the underside of the shower tray base 2 can rest on the base profile leg 7 over a large area.

[0052] With the stop webs 9, it is preferred if the adhesive does not end up in an undefined widened state when the permanently elastic sealing compound 13 is applied, for example via a cartridge or when applied via permanently elastic sealing tapes. The stop webs 9 therefore also serve as stop guides for the cartridge or as stop limits for permanently elastic sealing tapes. They also serve to ensure that a free space remains in the space between the stop web 9 and the support web 10 spaced apart from it, in order to ensure that the sealing compound 13 does not tear open or break off when there is movement of the sealing compound 13. It therefore has a certain amount of movement in the respective sealing chamber 12, and it is considered preferable if the sealing chamber 12 is not completely filled with sealing compound 13, but rather that spaces are created in between that allow movement of the sealing compound 13 to prevent it from tearing off under shear load.

[0053] If sealing tapes are used instead of the permanently elastic sealant dispensed via a cartridge, the profile of the sealing tapes can have various shapes. In a first embodiment, such a sealing tape can be rectangular or square, whereby it should in any case have an oversize whose height extends beyond the height of the support web 10 to allow compression of the sealing tape during installation.

[0054] In another embodiment, the shape of the sealing strip can be trapezoidal, square, rectangular, oval, or any other profile shape. Here, too, the focus is on filling only a portion of the sealing chamber 12, rather than the entire space, to allow the shower tray base 2 to move in its longitudinal direction without the sealing compound tearing or breaking open. The sealing compounds 13, 13a shown preferably extend across the entire width of the shower tray base and the wall panel 3, 4.

[0055] In a special embodiment according to Figures 2 to 4it is provided that the front side 24 of the shower tray base 2 also engages into the profile-side sealing chamber 21, whereby the same previously described physical conditions apply to the sealing compound 13a as for the sealing compound 13, so that the lower floor-side front side of the shower tray base 2 engages over its full length and with its full volume into the permanently elastic sealing compound 13a of the sealing chamber 21.

[0056] The invention now concerns the fact that at least a part of the front side 24 of the shower tray base 2 is connected to the inside of the wall panel 3 via a preferably invisible connecting joint 26 with a high contact pressure, which is preferably achieved by the following technical teaching.

[0057] As can be seen from Figure 2For assembly, the wall panel 3' is first pivoted in a pivoted position with its lower base side into the profile-side sealing chamber 21, so that a pressure surface 17 is formed on the lower, foot-side, inner surface of the wall panel 3 in order to form a preparation for the invisible connection joint 26 to be arranged there.

[0058] It is preferred if the sealing chamber 21 receiving the base of the wall panel 3 is filled during assembly with a preferably transparent sealing compound 13a which has not yet hardened in order to allow a certain displacement of the sealing compound when pivoting in. After the wall panel 3' has been Figure 2shown position, the lower, inward-facing side of the wall panel 3 with the pressure surface 17 already rests against the end face 24 of the shower tray base. When the wall panel 3' is pivoted further in the direction of arrow 14 by the pivot angle 23, which is preferably in the range between 10 and 30 degrees, the outer side of the wall panel 3 pivots like a lever, which rests against the inner supporting web 10 in the area of ​​the wall profile leg 8 and acts as a two-armed lever. The upper lever arm 28 is long and is pivoted by the fitter in the direction of arrow 14 by the pivot angle 23, whereby the shorter lever arm 18 moves with high contact force against the end face 24 of the shower tray base 2.

[0059] As a result, a high compressive force is exerted in the direction of arrow 15 on the pressure surface 17 of the wall panel 3 via the supporting web 10, which acts as a support 16. The wall panel 3, with preferably slight deformation, lies flush or flush with the outwardly directed end face 24 of the shower tray base 2 and thus provides an invisible but extremely well-sealed linear seal 19 as a connecting joint 26.

[0060] With reference to Figure 2 It should also be noted that a sealing compound 13 can also be applied in the area of ​​the vertical wall profile leg 8 for connection to the outside of the wall panel 3, whereby this sealing compound 13 can also be omitted because it is sufficient to keep the transparent sealing compound 13a arranged in the sealing chamber 21 in order to seal the connecting joint 26.

[0061] The Figure 3 shows a modification of the Figure 2, where it can be seen that in another embodiment it is possible to profile the front side 24 of the shower tray base 2.

[0062] The Figure 2 The end face 24 shown, which is perpendicular to the horizontal extension of the shower tray base 2, is now beveled to form a beveled end face 24'. This ensures that a linear sealing connection is created in the region of the pivot point 17, forming a linear seal 19, resulting in an invisible sealing joint that is not filled with a sealant. It is therefore not visible from the outside; it cannot tear; it cannot become moldy or rot in any other way, which is a significant advantage over the visible sealing joints of the prior art.

[0063] The length of the lever arm 18 between the supporting web 10 serving as support 16 and the pivot point 17 can be configured in any desired manner. It is preferred if its length is approximately in the range of 3 to 20 mm.

[0064] The longer the upper lever arm, which can be up to 240 cm for floor-to-ceiling wall elements, the greater the pressure force exerted via the pressure surface 17 on the opposite end face 24 of the shower tray base. The length of the lower lever arm 18 can also be adjusted according to its distance. As a result, the inner base side of the wall panel 3 is pressed onto the opposite end face 24 of the shower tray base 2, possibly with slight plastic and / or elastic deformation.

[0065] The Figure 4shows that instead of a horizontal support web 10, which is arranged on the inside of the wall profile leg 8 and directed inwards, a wedge-shaped web could also be present, which acts as an abutment 20 for the two-armed lever 18, 28 formed from the wall panel 3. Instead of the wedge surface, rounded surfaces can also be used to form an insertion bevel for the bottom side of the wall panel 3.

[0066] The Figure 4 therefore shows such a rounded abutment 20, which is approximately wedge-shaped and has an upper insertion bevel 25, which facilitates the insertion of the lower end of the wall panel 3 into the associated profile-side sealing chamber 21.

[0067] The two parts 2, 3 that abut each other and form the linear seal can have an overlap height of 1 to 8 mm.

[0068] In this area, the preferably seamless line seal 19 of the connecting joint 26 is created under high contact pressure. Drawing legend

[0069] 1 Kit 2 Shower tray base 3 Wall panel 3' 4 Wall panel 5 Corner connection 6 Floor-wall profile 7 Floor profile leg (horizontal) 8 Wall profile leg (vertical) 9 Stop web 10 Support web 11 Corner connection 12 Sealing chamber 13 Sealing compound / 13a transparent 14 Arrow direction 15 Arrow direction 16 Support 17 Pressure surface 18 Lever arm (bottom) 19 Line seal 20 Abutment 21 Sealing chamber 22 Angle 23 Swivel angle 24 Front side (of 2) / 24' Front side 25 Lead-in bevel 26 Connection joint 27 Horizontal axis 28 Lever arm (top)

Claims

1. Kit for the installation of a shower tray in sanitary rooms with prefabricated components that can be assembled on site, consisting of at least one shower tray with a shower tray base (2), a wall panel (3, 4) which is sealed to the shower tray via a connecting joint (26) and a floor wall profile (6) connecting the wall panel (3, 4) to the shower tray, the floor profile leg (7) of which is connected to the underside of the shower tray base (2) and the wall profile leg (8) of which forms a support (10, 16) for the pivotable wall panel (3, 4), which, when pivoted, applies a lower, floor-side pressure surface (17) to the facing end face (24) of the shower tray base (2) to form the connecting joint (26).

2. Kit according to claim 2, characterized in thatthe wall panel (3, 4) is designed as a two-armed lever (18, 28), the longer lever arm (28) of which lies above the profile-side support (10, 16) and the shorter lever arm (18) of which lies below the support (10, 16), and in that the wall panel (3, 4) is designed to be pivotable about a horizontal axis (27) formed by the support (10, 16) in order to form the connecting joint (26).

3. Kit according to claim 1 or 2, characterized in that on the inside of the wall profile leg (8) of the floor wall profile (6) there is arranged a sealing chamber (21) which is open towards the rear of the wall panel (3, 4) and which can be filled with a hardenable, permanently elastic sealing compound (13a).

4. Kit according to claim 3, characterized in that at least part of the end face (24) of the shower tray base (2) to be sealed and at least the lower, floor-side surface of the wall panel (3, 4) protrude into the sealing chamber (21).

5. Kit according to one of claims 1 to 4, characterized in thatthe bottom side of the wall panel (3, 4) can be pivoted into the sealing chamber (21) about a horizontal axis (27) formed by the profile-side support (10, 16) and rests against the front side (24) of the shower tray base (2) in a load-transferring manner, forming the pressure surface (17).

6. Kit according to one of claims 1 to 5, characterized in that the connecting joint (26) is free of sealing compound (13a).

7. Kit according to one of claims 1 to 6, characterized in that the gap dimension of the connecting joint (26) is in the range of 0 to 1 mm, but is preferably 0 mm.

8. Kit according to one of claims 1 to 7, characterized in that the floor profile leg (7) of the floor wall profile (6) is connected to the underside of the shower tray base (2) via permanently elastic sealing compounds (13).

9. Kit according to one of claims 1 to 8, characterized in thatthe wall profile leg (8) of the floor wall profile (6) is connected to the back of the wall panel (3, 4) via permanently elastic sealing compounds (13).

10. Kit according to one of claims 1 to 9, characterized in that the floor wall profile (6) is attached to the shower tray floor (2) and / or the wall panel (3, 4) with at least one supporting web (10).

11. Kit according to one of claims 1 to 10, characterized in that the end face (24) of the shower tray base (2) to be sealed extends at least partially into a bottom-side sealing chamber (12) filled with sealing compound (13).

12. Kit according to one of claims 1 to 11, characterized in that the support (10, 16) forming the pivot point of the two-armed lever is designed on the inside of the wall profile leg (8) as a horizontal support web (10) or as a wedge with an insertion bevel (25).

13. Method for installing a shower tray in wet rooms during the renovation of old buildings with prefabricated components that can be assembled on site, consisting of at least one shower tray with a shower tray base (2), a wall panel (3, 4) that is sealed to the shower tray via a connecting joint (26) and a floor wall profile (6) connecting the wall panel (3, 4) to the shower tray characterized in that13.1 in a first method step, a horizontal base profile leg (7) of the base wall profile (6) is connected to the underside of the shower tray base (2), 13.2 in a second method step, a sealing chamber (21) arranged in the corner area of ​​the base wall profile (6) is filled with a curable sealing compound (13a), 13.3 in a third method step, the base side of the wall panel (4, 3) is inserted in a slightly tilted position into the space between the vertical wall profile leg (8) and the end face (24) of the shower tray base (2), 13.4 in a fourth method step, the wall panel (3, 4) is pivoted from its tilted position into the vertical position and, in the process, its base side, utilizing a lever effect, is loaded onto the end face (24) of the shower tray base (2) to form a minimal connecting joint (26). creates.

14. Method according to claim 13, characterized in thatin the second process step, the connection between the shower tray base (2) and the floor profile leg is made in such a way that the front side (24) of the shower tray base (2) with the later connecting joint (26) is spaced from the inside of the vertical wall profile leg (8), 15. Method according to claim 13 or 14, characterized in that whose floor profile leg (7) is connected to the underside of the shower tray base (2) and whose wall profile leg (8) rests against the rear of the wall panel (3, 4) with a support (10, 16) in a load-transferring manner and thereby forms a lower, floor-side pressure surface (17) on the inside of the wall panel (3, 4), which rests against the facing end face of the shower tray base (2) while forming a contact force, forming the connecting joint (26).

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