Bathtub and / or shower tray

Abstract

The invention relates to a bathtub and / or shower tray (1) having a base (6) and a wall or side element which completely surrounds the periphery of the base and which is arranged substantially perpendicular to the base (6), said wall or side element being formed in multiple parts from substantially annular elements (2) which can be fixed to one another in a sealing manner, all the substantially annular elements (2) surrounding the bottom (6) can be moved relative to each other and relative to the bottom (6) in the direction of the height extension of the bathtub and / or shower tray (1), and at least one lifting mechanism (3) hinged thereto is arranged on the annular element (2) which can be moved farthest relative to the bottom (6), the bottom (6) is surrounded by a drainage channel (4, 7) having drainage fittings and the annular element is arranged so as to be able to descend into the drainage channel, the drainage channel (4, 7) being formed by two drainage channel parts which transition to one another, namely a lower drainage channel part (7) and an upper drainage channel part (4), according to the invention, a plurality of support elements (8), which are designed to support the substantially annular element (2), are provided in the lower drainage channel part (7), and at least one drainage opening (14), which is connected to at least one drainage pipe, is formed in the lower drainage channel part (7).

Description

Technical Field

[0001] The invention relates to a bathtub and / or a shower tray, the bathtub and / or the shower tray having a bottom and walls or side elements which completely surround the periphery of the bottom and are arranged substantially perpendicular to the bottom, the walls or side elements being composed in multiple parts of substantially annular elements which can be fixed to each other in a sealing manner, all substantially annular elements surrounding the bottom being movable relative to each other and relative to the bottom in a direction extending in height of the bathtub and / or the shower tray, at least one lifting mechanism which is articulated thereto being arranged on the annular element which can be moved the farthest relative to the bottom, the bottom being surrounded by a drain channel with a drain fitting and the annular element being arranged so as to be able to be lowered into the drain channel. Background Art

[0002] Bathtubs and / or shower trays are present in almost all homes or all houses in different sizes, designs and also depths. In particular, in modern homes, the desire of the residents to have a bathroom that includes both a bathtub and a shower tray is often not met due to the limited space available. Both elements, bathtubs and shower trays, have their advantages and disadvantages. For example, in the case of shower trays, it is not easy to get into them for people of advanced age and / or limited mobility. On the other hand, it is more convenient and simple to wash the whole body in a bathtub, especially in the case of limited mobility or also for children, but due to the high rim, getting in and out of the bathtub is almost impossible without assistance, especially for people with limited mobility.

[0003] In order to enable these persons to enter and leave such deep bathtubs, bathtubs with access openings or doors have been proposed and provided, which enable the user to enter and leave such bathtubs in a simple manner. However, a disadvantage of such bathtubs is the fact that for a shower no element as deep as in a conventional bathtub is required, and on the other hand, even if a flat or almost flat surface could be provided for a shower, technical problems arise with regard to the drain opening, the cleanability of the entire bathtub and / or the shower tray and more similar aspects.

[0004] EP 3378366 A discloses a bathtub and / or shower tray which can be designed as a bathtub with sufficient depth or as a shower tray which is designed flush with the surrounding bathroom floor. A disadvantage of this type of bathtub and / or shower tray is that the bottom is connected to the water outlet fitting, so that before the individual elements forming the bathtub, which engage with each other, are lowered, the bathtub must be completely emptied in order to prevent water from overflowing. On the other hand, it is also known that in the lowered state of the elements forming the bathtub, these elements are lowered into a drain channel, in which a plurality of drain openings or at least one drain opening is formed, through which the water is to flow away. A disadvantage of this design is that the profile of the bathtub which is lowered into the drain channel almost completely fills the drain channel, thereby seriously hindering the rapid drainage of the water.

[0005] Another embodiment of a foldable bathtub is known from CH-PS 52381, which comprises a basin-shaped bottom element and a wall element which can be telescopically moved relative to the bottom element and which is held by a supporting element which can be clamped under the upper edge to prevent the individual elements from accidentally sliding into each other. Summary of the invention

[0006] The object of the present invention is therefore to create a bathtub and / or shower tray which is designed such that its walls or side elements can be completely lowered in height into the base and form a flat surface which allows the bathtub to be emptied quickly and reliably or the water to be completely drained during a shower and which is moreover easy to clean and requires little maintenance.

[0007] In order to take into account both requirements in one and the same bathtub and / or shower tray, namely to be able to provide a bathtub which is easy to enter and exit and, on the other hand, to provide a shower tray which forms a flat surface during showering and, on the other hand, has a corresponding structural depth in order to be able to fill it with sufficient water for a full body bath, it is necessary to provide a bathtub and / or shower tray which can be arranged in such a way that it forms a flat surface with the surrounding bathroom floor and which also ensures that water from the bathtub or water supplied during showering can flow out safely and reliably via a drain opening formed in or under the tub bottom. To achieve this object, the bathtub and / or shower tray is essentially characterized in that the drain trough is formed by two drain trough parts transitioning into one another, namely a lower drain trough part and an upper drain trough part, in which a plurality of support elements which are designed to support the essentially annular element are provided, and in which at least one drain opening connected to at least one drain pipe is formed. Since the gutter is formed by two gutter parts that transition into one another, namely a lower gutter part and an upper gutter part, it is achieved that the substantially annular element is completely sunken into one, namely the upper gutter part, whereby in the lowered state of the substantially annular element a shower tray is formed which forms a completely flat surface, for example flush with the bathroom floor. Furthermore, by providing a second, in particular lower gutter part, water that drains from a filled bathtub or that reaches the formed surface during a shower is conducted downwards through the upper gutter and via the lower gutter, for example, to a water outlet. In this way, it can be ensured that water does not accidentally flow into the bathroom or remain in the gutter part, as is the case in bathtubs according to the prior art, which, although they can be lowered to form a flat surface, the trough into which the elements forming the bathtub can be sunk cannot be completely emptied due to the cylinder element that prevents the free outflow of water. The design according to the invention can reliably avoid problems caused by residual water, hair or soap residues and the like, and also problems of unwanted water running out into the bathroom, which can have known disadvantageous consequences such as slippery floors and damage to bathroom furniture due to moisture.

[0008] Gutter parts that transition into each other mean that two gutter parts are separated, for example, by a step, a slope, a cross-sectional contraction or a similar structure, but constitute a common water holding volume, in which the at least partially open upper side of the lower water holding volume simultaneously constitutes an imaginary continuation of the bottom surface of the upper water volume.

[0009] As provided according to the invention, further reliability is provided in that a drain opening connected to a drain pipe is formed in the lower gutter part, thereby ensuring that the drain opening is arranged in the lowest part of the bathtub or shower tray and can reliably prevent water from being retained in any part of the device.

[0010] According to a further development of the invention, the bathtub and / or shower tray is designed such that the substantially annular element is designed as mutually engageable, substantially L-shaped individual profiles and a sealing element, in particular an annular seal, is provided between the mutually engaging sides of the individual profiles, thereby achieving that the bathtub is composed of individual profiles that can be releasably connected to each other, the individual profiles are sealed in their upright state by the insertion of the sealing element between the individual profiles and further ensure that water can pass between the individual annular elements in the lowered state of the substantially annular element. The sealing is achieved by the weight of the individual elements suspended in each other, and a connection of the substantially annular profiles to each other, for example by a flexible silicone rubber element, can be avoided.

[0011] In order to ensure that, when the plurality of substantially annular elements are lowered, water does not suddenly pass between all the substantially annular elements connected only by seals and excess water does not flow into the drain, the lowering of the substantially annular elements is carried out in such a way that water first flows out between the bottom element and the first element, then between the first and second elements, and so on. This is achieved in that, due to the water pressure, the lowest element first disengages from the bottom element and then as the first element enters its desired, flat or lowered state. In this way, it is possible to prevent excess water from flowing out simultaneously, and, as in a further development of the invention, the device can ultimately be improved in such a way that a plurality of sensors are provided, which detect the water level in the drain, the speed at which the individual annular elements are lowered, and further similar parameters, and in the event of too rapid a descent or too high a water level in the drain, directly output a corresponding signal, and in the worst case, reverse the movement, for example, in order to prevent a bathroom from flooding.

[0012] In practice, the substantially L-shaped elements usually correspond to an L rotated through 180° or to a hook shape, so that the downwardly directed edge of each element is designed to be straight.

[0013] In order to prevent the individual substantially annular elements from bulging or being deformed by the water pressure prevailing inside the bathtub, in particular when the bathtub is completely filled with water, that is, when substantially all substantially L-shaped elements are in their maximum extension or are hooked into one another, the invention is developed in such a way that a reinforcing element is provided on the periphery of the substantially annular element, which at least partially surrounds the element. By providing a reinforcing element at least partially surrounding the element on the periphery of the substantially annular element, it is achieved that the substantially annular element is reliably prevented from bulging outwards by the water pressure prevailing in the bathtub and / or shower tray. A reinforcing element at least partially surrounding on the periphery means that the reinforcing element is arranged externally on the substantially annular element, can be screwed to the substantially annular element, bonded to the substantially annular element, formed integrally with the substantially annular element, thickened in material or embedded in the material thickness or arranged in a more similar manner, and in particular for the design of the bathtub which is not circular but, for example, has an elliptical or similar shape, "partially surrounding" means that the long sides or elongated sides are formed with reinforcing elements. Parts of the substantially annular element with a greater curvature, such as heads or the like, do not require reinforcing elements, since these parts do not bulge or bulge only under very limited conditions.

[0014] In order to provide a reliable support surface and in particular to prevent any risk of accidents even when the individual substantially annular elements are in the lowered state, the invention is improved in that in the lowered state of the annular elements, the upper gutter parts are respectively completely covered by the upper sides of the substantially L-shaped individual profiles. Since the upper gutter parts are respectively completely covered by the upper sides of the substantially L-shaped individual profiles, not only a flat surface is provided, but also through the narrow gaps that are necessarily formed between the individual substantially L-shaped individual profiles, water can be safely and reliably drained into the lower gutter parts and water is prevented from flowing out of the area of ​​the flat shower tray. The gaps are formed here mainly because the bathtub wall is not basically formed completely vertically, but has an inclined shape that tapers towards the bottom, so that when lowered, a small gap is necessarily formed between the individual substantially annular elements between the respective upper sides of two adjacent substantially L-shaped individual profiles according to the slope. According to the invention, this small gap serves as part of the drain opening in the lowered state of the substantially annular element.

[0015] According to an improved solution of the invention, the bathtub and / or shower tray is designed so that the supporting element is designed as a supporting strip or a supporting granule, thereby ensuring that, in the lowered state of the bathtub and / or shower tray, the substantially annular element is supported on the supporting strip or the supporting granule and does not hinder the free drainage of water into the downward drain trough part. In order to prevent water from being blocked on the supporting granules or the supporting strips, a design solution can be obtained here, that is, drain openings are respectively formed between more than two supporting strips or a row of supporting granules, and the drain openings are connected to a central drain opening arranged below the bathtub or shower tray, so that water can flow into the central drain opening from multiple directions. In this design solution, not only is it ensured that large amounts of water can also flow out quickly and reliably, but in particular, overflow of the drain trough can be reliably prevented.

[0016] According to a further development of the invention, a design is obtained in which the support strip is designed as a strip which bridges the lower gutter part and is releasably fixed in the lower gutter part, thereby providing a further simplification of the device, wherein it is possible to avoid providing a plurality of drain openings, but rather to provide an overall lower gutter part for accommodating water, which can flow freely in the lower gutter part and thus also ensure that the water flows out quickly at the or each of the provided drain openings. In addition, the support strip is designed as a releasably fixed strip, whereby the support strip can be easily removed, for example for maintenance or cleaning purposes, thereby also providing a hygienic design, since it is ensured that residues such as hair or the like do not accumulate on the strips or that the residues can be quickly and easily cleaned.

[0017] In order to achieve further reliability of the bathtub and / or shower tray, the invention is configured such that the support strip has a number of recesses or grooves corresponding to the number of the annular elements. Since the support strip has a number of recesses or grooves corresponding to the number of the annular elements, it is ensured that each annular, substantially L-shaped element is arranged in one of the grooves or recesses in the lowered state of the bathtub and / or shower tray, thereby reliably preventing the individual substantially annular elements from shifting relative to each other and thus also preventing large gaps from being inadvertently formed in a flat floor surface that has only narrow drainage gaps.

[0018] As in an improved solution of the present invention, in the same way, such a configuration can be obtained, that is, the support knots are arranged on the bottom surface of the lower drain groove at intervals and multiple groups of support knots are provided, one group of support knots always extending in the radial direction of the lower drain groove and arranged side by side with a number of support knots corresponding to the number of the substantially annular elements. Since multiple support knots are arranged on the bottom surface of the lower drain groove at intervals, it is achieved that the substantially annular element is provided with support knots and at the same time it is ensured that no drainage opening is arranged inside the lower drain groove and water can flow through the free space between the individual knots. Since multiple groups of support knots are arranged simultaneously extending in the radial direction of the lower drain groove and these groups have a number of support knots corresponding to the number of the substantially annular elements side by side, multiple support points are provided for each individual annular element and it is ensured that when the upper side of the substantially annular element is loaded, for example when the bathtub and / or shower tray is in a lowered state and used as a shower tray, the individual elements will not accidentally tilt or bend and a smooth and flat floor without any height difference can be provided.

[0019] According to a further development of the bathtub and / or shower tray, a design is obtained in which the bottom is formed by at least one essentially hollow, box-shaped element and an essentially plate-shaped element which is releasably fastened to the box-shaped element, thereby reducing the overall weight of the bathtub and / or shower tray and providing a fixed or rigid bottom which does not bend under the force of gravity, which can be the weight of the water or the weight of one or more users, and which also has an aesthetic appearance.

[0020] As in an improved solution of the present invention, a control or regulating element, in particular an element for controlling the rise and / or fall of a substantially annular element, is arranged inside a substantially hollow box-shaped element, thereby making it unnecessary to arrange a special operating box for controlling the bathtub and / or shower tray. Of course, not only a control or regulating device for adjusting the height of the bathtub and / or shower tray can be arranged inside the substantially hollow box-shaped element, but also controls for the required amount and / or temperature of water, various sensor elements and more similar can be arranged, which can be a bathtub and / or shower tray that can be operated by a remote control, a mobile phone or other arbitrary means, which may be a switch between water supply for a bath or water supply for a shower and more similar situations. Of course, the bathtub and / or shower tray can also be operated conventionally by, for example, a button for raising or lowering the bathtub or by a conventional faucet. All other elements for water supply, hot and cold water mixing faucets or the like can also be contained in the substantially hollow box-shaped element. Furthermore, in this embodiment, the essentially box-shaped element is covered with an essentially plate-shaped element which can be releasably fastened thereto, thereby ensuring that moisture cannot penetrate into the interior of the essentially box-shaped element and that no locking elements or other fastening elements are visible on the surface facing the interior of the bathtub and / or shower tray, and ultimately this embodiment allows the entire bottom of the bathtub or shower tray to be easily cleaned.

[0021] According to a further development of the invention, the device is designed such that the base has a plurality of nozzles, in particular air and / or water supply nozzles, thereby making it possible for the bathtub and / or shower tray to be used directly as a whirlpool bathtub or massage bathtub without having to modify the essentially annular profile or the drain channel.

[0022] If, as in a further development of the invention, the lifting mechanism is formed by at least two lifting cylinders which can be operated electrically, hydraulically or pneumatically, in particular by remote control, a one-sided lifting of the bathtub is reliably prevented. As is known per se, such a design can be realized here in that the corresponding raising and / or lowering mechanism acts on the uppermost substantially annular element and is used to ensure that the lowering or raising is achieved. It goes without saying that the uppermost substantially annular element, like the gutter part, also requires a reinforcement structure in the region of the lifting mechanism in order to reliably prevent the element, which is usually formed of plastic, from tearing. In view of the fact that such a reinforcement element can extend over the entire circumference of the uppermost substantially annular element and the gutter part, or can be formed only partially and can be selected from any material or possibility, it is not necessary to explain such a reinforcement element in detail here.

[0023] The entire bathtub and / or shower tray can be operated here by remote control or in the conventional manner by operating buttons and electrical controls. Of course, any variants of sensor control are also conceivable, control by mobile phone or remote control, control with preprogrammable filling or emptying times and much more. Since such control or regulating elements or also programmable elements are known to the person skilled in the art, they do not need to be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. In the accompanying drawings:

[0025] Figure 1 A view showing a bathtub and / or shower tray according to the invention,

[0026] Figure 2 Show Figure 1 side view of the bathtub and / or shower tray,

[0027] Figure 3 A view from above showing the bathtub and / or shower tray in the lowered state, and

[0028] Figure 4 An exploded view of the individual elements forming one variant of the bathtub and / or shower tray is shown. DETAILED DESCRIPTION

[0029] exist Figure 1 In the figure, a bathtub and / or shower tray is generally designated by 1, which in the present case consists of five substantially annular elements 2 which can be slid into one another or slid apart from one another. The substantially annular elements 2 are arranged in a Figure 1 In the illustration of , the bathtub 1 is shown in the state of maximum separation from one another, thereby forming a bathtub 1 with a conventional depth of between 35 cm and 50 cm. The height adjustment of the bathtub or shower tray 1 is carried out here by a lifting mechanism 3 acting on the uppermost ring element 2, the uppermost ring element 2 for being acted upon by the lifting mechanism 3 is designed to be reinforced, and reinforcement elements 5 for the lifting mechanism 3 are also provided in the upper drain channel 4. Figure 1 The bathtub or shower tray 1 is designed here so that the lowermost substantially annular element 2 is embedded in a base 6, which according to the invention is, for example, flush with a bathroom floor (not shown) and is formed on one plane in order to achieve a surface that is flush with the bathroom floor when the substantially annular element 2 is closed.

[0030] In order to be able to form a single plane with the bottom 6 of the bathtub and / or shower tray 1 in the closed state of the substantially annular element 2, a drain trough 4 must be provided below the bathtub and / or shower tray 1, the depth of which is at least equal to the height of the individual substantially annular elements 2. According to the invention, the drain trough 4 is now designed so that it consists of two drain trough parts 4 and 7 that transition into each other, namely a lower drain trough part 7 and an upper drain trough part 4. A plurality of support elements 8 are provided in the lower drain trough part 7, on which the individual substantially annular elements 2 are supported in the lowered state of the bathtub and / or shower tray 1. In the illustrated embodiment, the support elements 8 are designed as strips that span the lower drain trough part 7 and are inserted into recesses 9 of the lower drain trough part 7. The support elements 8 can also be designed as strips with granules or as strips that are screwed or sealed into recesses or the like. In addition, the support elements 8 have a number of ribs 10 that is equal to the number of the substantially annular elements 2, so that the individual elements 2 can be supported without displacement in the lowered state of the bathtub and / or shower tray 1.

[0031] Any type of lifting cylinder, such as hydraulically, pneumatically or electrically operated lifting cylinders, can be used as lifting mechanism 3. In this case, it can be seen that the weights that must be held by such lifting mechanism 3 are particularly small, because, for example, in a plastic bathtub, the substantially annular element 2 has only a very low weight and therefore the forces acting on the bathtub or shower tray 1 in the vertical direction are small.

[0032] exist Figure 1 In the embodiment, the tray 11 with the drain channels 4 , 7 is also designed with feet, in particular height-adjustable feet 12 in the area around the upper drain channel part 4 , in order to be able to provide an in particular 100% horizontal design of the bathtub and / or shower tray 1 .

[0033] Finally, and likewise not shown in the present embodiment, the bathtub or shower tray 1 can be provided with a covering element on its outer side in order to improve the appearance.

[0034] exist Figure 2 Basically retained Figure 1 , wherein the bathtub and / or shower tray 1 is shown in a side view, and the design underneath the tray 11 is additionally shown. Figure 1 The elements shown in Figure 2 Also shown schematically are a drive unit 13 for the lifting mechanism 3 and a drain opening 14 , through which water flowing into the lower drain trough 7 can flow out reliably.

[0035] Figure 3The bathtub and / or shower tray 1 is shown in the closed state of the bathtub and / or shower tray or in the state in which the annular elements 2 are slid into each other, wherein the bottom 6 is arranged in one plane with the substantially annular element 2 which is sunken into the drain channel 4 and the corresponding upper sides 15 of the substantially L-shaped profile of the substantially annular element 2 are designed here in such a way that the drain channels 4, 7 are completely covered by these upper sides 15, so that the risk of accidents is largely prevented, in particular when stepping on the bottom element 6 of the bathtub and / or shower tray 1. It is of course clear that such a design of the bathtub and / or shower tray 1 can be used directly as a shower device, in that the waste water from the shower flows between the substantially annular elements 2 into the drain channels 4, 7 and is carried away from there via the drain opening 14.

[0036] exist Figure 4 , which shows the individual elements of a variant of the bathtub and / or shower tray 1. In addition to the elements that are important for this variant of the bathtub and / or shower tray 1, this exploded view also shows, for example, a height adjustment device for the foot 12, a seal for the reinforcement element 5 of the lifting mechanism 3, fixing elements and the like, but these components are not important for the operating principle of the bathtub and / or shower tray 1 and are therefore not described in detail.

[0037] specifically by Figure 4 It can be seen that each substantially annular element 2 is designed with an upper edge 15, in which a seal 16 is respectively inserted. However, the substantially annular element 2 can also be designed to be substantially Z-shaped, in which case additional seals 16 are formed. Figure 4 1 . The lower edge is not shown in the figure. This essentially Z-shaped design of the essentially annular element 2 is on the one hand more difficult to clean, since water always remains in the lower groove of the Z-shape, and on the other hand it also makes the free drainage of water somewhat more difficult. Due to the essentially L-shaped or Z-shaped design of the essentially annular element 2, two essentially annular elements 2 that follow one another in the height direction are connected only by the inserted seal 16, so that during the descent, the elements 2 are disengaged and water passes between the essentially annular elements 2. In addition, in order to prevent the essentially annular elements 2 from bulging due to the water pressure existing in the filled bathtub 1, the corresponding long sides of the bathtub and / or shower tray 1 are provided with reinforcement elements 20. The reinforcement elements 20 are preferably metal reinforcements that are added to the wall thickness of each essentially annular element 2. Finally, the elements 20 can also be designed as material thickenings.

[0038] In addition, by Figure 4It can be clearly seen that the uppermost annular element 2 has a substantially wider edge 15 of the substantially L-shaped element compared to the other substantially annular elements 2. Below the wide edge 15, a reinforcement element 5 is provided, through which the lifting mechanism 3 passes, and also through the edge 15, in order to enable the bathtub and / or shower tray 1 to be raised and lowered.

[0039] Inside the tray 11, a substantially box-shaped element 17 corresponding to the shape of the bathtub and / or shower tray 1 can be seen, which is designed to be hollow and has two access openings 18 to allow access to its interior. In this interior, for example, control elements, drive elements or the like for the lifting mechanism 5 (not shown) can be arranged. The substantially box-shaped element 17 is covered by a plate-shaped element of the bottom 6 and is sealed by inserting a seal 16. The bottom 6 can be releasably fastened to the substantially box-shaped element 17.

[0040] Finally, in addition to the support element 8, Figure 4 The drain fitting 18 and the drain opening 14 and a support element 19 which can be mounted below the tray 11 and is designed for connection to a pipe system (not shown) can be seen.

[0041] Such a bathtub and / or shower tray 1 is not only distinguished by extremely flexible usability, but also has the advantage that it is completely accessible and can be used as a complete bathtub at the same time and furthermore any water present in the bathtub can be drained away reliably.

Claims

1. A bathtub and / or shower tray (1), comprising a bottom (6) and walls or side elements which completely surround the periphery of the bottom (6) and are arranged substantially perpendicular to the bottom (6), the walls or side elements being composed in multiple parts of substantially annular elements (2) which can be fixed to each other in a sealing manner, all substantially annular elements (2) surrounding the bottom (6) being movable relative to each other and relative to the bottom (6) in a direction extending in height of the bathtub and / or shower tray (1), at least one lifting mechanism (3) being articulated thereto being provided on the annular element (2) which can be moved the furthest relative to the bottom (6), the bottom (6) being surrounded by a drain groove (4, 7) having a drain fitting (18) and the annular element (2) being arranged so as to be able to be lowered into the drain groove (4, 7), characterized in that The gutter (4, 7) is formed by two gutter parts transitioning to each other, namely a lower gutter part (7) and an upper gutter part (4), a plurality of support elements (8) configured to support the substantially annular element are provided in the lower gutter part (7), and at least one drainage opening (14) connected to at least one drainage pipe is formed in the lower gutter part (7).

2. The bathtub and / or shower tray (1) according to claim 1, characterized in that The substantially annular element (2) is designed as substantially L-shaped individual profiles that can engage with each other, and a sealing element (16), in particular an annular seal, is provided between the mutually engaging sides of the individual profiles.

3. The bathtub and / or shower tray (1) according to claim 1 or 2, characterized in that: A reinforcing element (20) is provided on the outer circumference of the substantially annular element (2) and at least partially surrounds the element.

4. The bathtub and / or shower tray (1) according to claim 1, 2 or 3, characterized in that When the annular element (2) is in the lowered state, the upper gutter parts (4) are respectively completely covered by the upper side edges (15) of the substantially L-shaped individual profile.

5. The bathtub and / or shower tray (1) according to any one of claims 1 to 4, characterized in that The support element (8) is designed as a support strip or as a supporting knot.

6. The bathtub and / or shower tray (1) according to claim 5, characterized in that The supporting strip (8) is designed as a strip which bridges the lower gutter part (7) and is releasably fixed in the lower gutter part.

7. The bathtub and / or shower tray (1) according to claim 5 or 6, characterized in that The support strip (8) has a number of recesses or grooves (10) corresponding to the number of annular elements.

8. The bathtub and / or shower tray (1) according to claim 5, characterized in that The supporting granules are arranged at intervals from each other on the bottom surface of the lower drainage trough (7) and are provided with a plurality of groups of supporting granules, each of which has a group of supporting granules extending in the radial direction of the lower drainage trough and arranged side by side in a number corresponding to the number of the substantially annular element (2).

9. The bathtub and / or shower tray (1) according to any one of claims 1 to 8, characterized in that The bottom (6) is formed by at least one element (17) which is designed to be essentially hollow, box-shaped, and an essentially plate-shaped element which is releasably fastened to the box-shaped element.

10. The bathtub and / or shower tray (1) according to claim 9, characterized in that A control or regulating element, in particular an element for controlling the raising and / or lowering of the substantially annular element (2), is arranged inside the element (17) which is designed as a substantially hollow box.

11. The bathtub and / or shower tray according to any one of claims 1 to 10, characterized in that The bottom (6) has a plurality of nozzles, in particular air and / or water supply nozzles.

12. The bathtub and / or shower tray (1) according to any one of claims 1 to 11, characterized in that The lifting mechanism (3) comprises at least two lifting cylinders (3) which can be operated electrically, hydraulically or pneumatically, in particular can be operated by remote control.

13. The bathtub and / or shower tray (1) according to any one of claims 1 to 12, characterized in that A plurality of sensors are provided, in particular pressure sensors, level sensors or humidity sensors.

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