EP1210897B1 - Shower tray - Google Patents

Abstract

The pedestal (1) for a stone or ceramic shower tray has a lip (6) surrounding a peripheral channel (3) which feeds into a drain (4). There are studs (2c) on its upper surface (2). An Independent claim is included for a shower tray fitted with the pedestal.

Description

The invention relates to a shower tray, in particular made of stone, tiles o. Ä. With a support body having a channel and a drain and at least one recordable from the support body bottom plate.

Under a shower tray, the element is understood, which represents the immediately visible part of the shower base, or in other words, the part that comes directly in contact with the water.

Shower trays or shower trays of various kinds are known. In particular, shower trays made of plastic or steel enamel are known. Such shower trays can be either floor level, d. H. be installed almost level with the surface of the screed, or on the screed, d. h., That the shower tray on the screed, for example by means of supports, is elevated, or it is a so-called semi-high installation provided in which the shower tray is at least partially sunk in the ground.

From GB 1 590 791 a shower tray with a raised bottom with a corrugation is known.

A similar construction is also shown in US-3,551,918, in which case the groove only shows a greater depth than in GB 1590 791.

US 5,718,008 describes a shower tray with a bottom with individual gutters, which open into a channel partially hidden by the bottom.

It is known from DE 298 081 29 U 1, a frame with a circumferential groove. On the frame is the shower tray. The shower tray is drained by a drain arranged in the shower tray. Through the channel formed by the frame, the laterally incident on the tiled floor adjacent to the shower tray water is also derived as the creeping water, which passes through the joints under the tiles on the insulation.

From DE 42 30 083 C2 a shower tray support for a shower tray is known, wherein the tray support is designed such that it is able to accommodate shower trays with different depth. This is accomplished in detail by the fact that at too low a height of the tub support blocks are underlaid, or it will not sufficient depth of the tub support from the base of the carrier material removed.

From the post-published WO 01/49157 (US-A 6,240,578), an expiring channel is known, wherein a bottom plate rests on the inner edges of the channel. The bottom of the channel is formed inclined inwards, but has no slope towards the drain out. From this it is clear that always residual water remains in the gutter, which leads in the long run to odor nuisance. A further disadvantage is that the channel is formed very wide, which causes the bottom plate protrudes very far edge. There is a risk here that when a person gets up on the edge, the bottom plate tilts. Another disadvantage is that the circumferential groove does not form as such a carrier body which is so stable in itself that it could stand alone; Rather, the gutter achieves its stability only by being cast in concrete.

From GB-A 2,108,382 a shower tray in the form of a circumferential channel is known, the bottom of which is designed as a removable lid in order to access the floor drain. The stability of this construction is only given if the shower tray is embedded in the ground.

Especially for high-quality bathrooms and showers are shower bases made of stone, and here in particular natural stone or tiles, known. Here, a centric floor drain is usually provided. In order to ensure that the shower water reaches the drain, the laying of the stone slabs or tiles must be done in such a way that a slope is provided from each side to the drain. In a square shower tray or shower tray with a total of four aligned towards the expiry stone slabs therefore each stone slab has a different slope. The preparation of such shower trays requires considerable manual effort. Unlike prefabricated Shower trays or shower trays made of steel enamel or plastic are such shower trays made of stone, natural stone or tiles due to the joints never absolutely waterproof. It is therefore essential that at least one insulation is provided under the shower tray, which is also connected to the drain so that water passing through the joints on the insulation can enter the drain.

In the hotel sector, especially for suspended ceilings, not only insulation is provided for safety, but rather two superimposed insulations are provided to prevent water from passing through the ceiling in case of damaged insulation. In particular, the connection of the insulation to the process is not without problems and requires increased attention from the craftsman.

From the state of the art, what are known as hard foam carrier elements are now known, which are milled from blocks. These show a quadrilateral training in each case an inclination of all four sides towards the centric process. The disadvantage here is, on the one hand, that for covering such a support element with stone slabs or tiles, a considerable effort still has to be made, since these slabs or tiles have to be cut precisely to create a cleanly formed shower tray. In addition, there is also the problem of installation. For such a carrier element made of rigid foam must be relined accordingly, so that the shower tray stores stable overall. For this purpose, it is provided that such a rigid foam support element is first placed on feet to align the support element, wherein in a second step, the support element is lined with mortar or hard foam.

From FR 2 562 409 A1, the structure of a shower tray of the type mentioned is known, in which a ring-shaped channel is provided as the carrier body, wherein on the upper side of the inner wall of the channel rests a bottom plate. Under the bottom plate, another plate is arranged, the dimensions of which corresponds to the inner space described by the channel to receive the positive bottom plate. There is a space between the bottom plate and the outside channel wall to form a gap to allow drainage of the water from the bottom plate into the channel.

The disadvantage here is the one that in the center of the construction, the bottom plate is hollow. Without the special reinforcement of the bottom plate in this area by the underlying plate, there would be a risk of breakage of the bottom plate with appropriate horizontal extent and appropriate load. On the other hand, there is no guarantee that the chosen construction is watertight. This against the following background: The bottom plate is - as already explained - on the gutter. Due to the capillary effect, water draining from the bottom plate will pull through the gap between the top of the gutter and the underside of the bottom plate into the free space. From there it enters the raw concrete floor where it moisturizes the soil.

Another disadvantage is that through the distance between the bottom plate and outer groove wall, the gutter is visible with their dirt from above.

Based on the prior art according to FR 2 562 409 A1, the object underlying the invention is to provide a shower tray of the type mentioned, which not only enables easy assembly and disassembly, but also beyond absolute tightness to the environment and guaranteed here especially against the floor of the building.

The object is achieved in that the carrier body has at least one pedestal, wherein the carrier body with the at least one pedestal forms a watertight system, wherein the at least one bottom plate rests on the at least one pedestal, wherein the water from the bottom plate in the channel can be discharged is, wherein the formation of the channel, the pedestal is surrounded by an edge. In this case, the channel, which is deposited from the top of the pedestal down, in conjunction with the flow forms a built-in carrier body watercourse system. It follows that with the chosen construction of the support body, a shower tray is provided, which has the same advantages in terms of tightness, such as a conventional shower tray made of plastic or steel enamel, but still offers the optical advantages of a shower tray, for example made of natural stone or tiles. In this case, therefore, the carrier body is part of the shower tray insofar as the carrier body ensures the drainage. Here is another advantage over the FR 2 562 409 clearly. To make the tightness between the bottom plate and gutter, the bottom plate would have to be glued to the gutter. But then the gutter of the shower tray is not revisable with reasonable effort. However, re-usability is important if the gutter needs to be cleaned or if items have fallen into the gutter.

The carrier body is designed as a stand-alone structure; It is therefore not necessary that the support body, as in the prior art must be relined with concrete in order to take a stable position can. In particular, by the upstanding on the ground edge and the pedestal is achieved that the carrier body is a stable structure in itself.

Further advantageous design features can be found in the dependent claims.

It is thus provided in detail that the channel runs annularly around the pedestal between the edge of the carrier body and the pedestal. This offers the opportunity to lay on the pedestal a continuous base plate made of natural stone or artificial stone, wherein in the edge region of the bottom plate to the edge of the carrier body to a slot through which the water can drain into the channel surrounding the pedestal. That is, in connection with the support body, which is made of plastic, for example, and in particular polyurethane, and the covering made of natural stone, a quasi-self-contained system is formed, which ensures an absolute tightness. Especially with an annular channel, the water-swallowing power is considerable. Since the process is covered by the bottom plate, there is also the possibility of making the process relatively large without the image of the shower tray altogether being disturbed thereby. The continuous plate made of natural stone, which is only placed on the pedestal, also eliminates complex installation work, as required in particular according to the prior art, when the flagstones or tiles must be installed inclined to the centric sequence in four levels. In this respect, joints are avoided, which is an optical advantage in particular, since the joint pattern at least interrupts the appearance of natural stone.

To ensure that the natural stone base plate rests securely on the top of the pedestal, the pedestal has nubs on its upper side. Corresponding thereto, the stone plate is provided on the bottom with corresponding recesses or blind holes.

The fact that the channel has only a small lateral extent, the supernatant of the bottom plate is so small that it can not tip over. The relatively small cross-section of the channel continues to cause a high flow rate, so that dirt can not be deposited in the channel.

To further ensure that the incoming water into the channel can drain, the channel has a slope down to the drain.

The carrier body shows, according to a further, special feature in the region of the sequence on the underside of the carrier body a plurality of recesses, wherein advantageously extends between the individual recesses for stiffening the carrier body a web. These recesses provide space for the installation of pipes that can be routed from the drain to a connection point in the wall at any point in this area.

In particular, the drain in the carrier body is surrounded by an annular edge region in order to provide, in conjunction with the siphon of the drain, the possibility of sealing by rubber rings. In this respect, the pedestal is left out in the area of the process. In order to prevent that in the area of this recess for the expiry of the stone slab is exposed, a podium support is provided behind the flow in the flight of the pedestal edges, which additionally supports the stone slab from below.

It is also advantageous if, in the region of the channel, the bottom plate forms a slot for the water outlet to the channel to the edge of the carrier body, the slot extending at an angle to the vertical. By the angled course of the slot is inward achieved that from above no insight into the channel is possible. In addition, only by doing a recording of the bottom plate is possible. In particular, this forms a look out that gives the impression of a continuous surface, because even if you look into the slot from above, in the field of view, the material of the edge region or the material of the bottom plate, ie z. B. granite is visible, but not the material of the carrier body or the dirt in the channel. In particular, if the edge has an edge frame at the same height with the bottom plate, only the material of the bottom plate or of the edge frame is visible to the viewer through the oblique slot.

In detail, it is provided that the slot is formed by two mutually parallel side surfaces, wherein the lower opening of the slot is laterally offset by at least the width of the upper opening. Due to the offset of the lower to the upper opening is achieved that can not be looked through by the slot, which is advantageously formed circumferentially.

In particular, from this it is clear that the installation of the entire shower tray is very simple. The carrier body presents itself as a prefabricated element made of plastic, in particular polyurethane foam, wherein initially the edge is edged with a casing made of natural stone, artificial stone or tiles. After installing the drainage pipe and the siphon in the drain and setting the support body, only the floor slab made of stone must be placed on the pedestal. To clean the channel or the siphon, the bottom plate only has to be picked up. As already mentioned at the outset, the base plate rests on pods arranged on the pedestal, wherein the bottom plate has on the underside a picture of blind holes corresponding to the nub picture of the pedestal, in order to enable positionally accurate positioning of the base plate on the pedestal.

In order to permanently prevent the formation of moisture deposits such as mold or the like on the underside of the natural or artificial stone base plate, the underside is impermeable to water, e.g. B. sealed by a coating of polyester resin.

Fig. 1

zeigt den Aufbau der Duschtasse mit Trägerkörper in perspektivischer, explosionsartiger Darstellung;

Fig. 2

zeigt einen Schnitt gemäß der Linie II - II aus Fig. 1 mit einem Aufbau auf dem Estrich;

Fig. 3

zeigt einen Einbau, wobei der Trägerkörper teilweise im Estrich versenkt ist;

Fig. 4

zeigt einen bodengleichen Einbau.

With reference to the drawings, the invention will be explained in more detail below by way of example.

Fig. 1

shows the construction of the shower tray with carrier body in perspective, explosive representation;

Fig. 2

shows a section along the line II - II of Figure 1 with a structure on the screed.

Fig. 3

shows an installation, wherein the support body is partially recessed in the screed;

Fig. 4

shows a floor-level installation.

The structure of a complete shower tray with or on the support body 1 results - as already stated - from Figure 1. The support body 1 rests on or in the screed floor 50 and is on the wall 60 at. In Figure 1, the designated carrier body 1 is shown, the edge 6 is covered by an edge enclosure 10, wherein on the edge enclosure 10, an edge frame 20 can be placed, wherein the edge frame 20 frames the bottom plate 30, which rests on the pedestal 2 of the support body 1 , The shower tray itself thus presents itself essentially as a structure or edge structure on the carrier body. Around the pedestal 2, there is an annular channel 3, which has a gradient towards the outlet 4. The sequence 4 shows a, opposite the pedestal 2 downwardly offset edge region 5, wherein an annular surface is formed by the edge region around the drain, which serves the support of sealing means, such as O-rings. In this case, therefore, the carrier body is part of the shower tray insofar as it serves through the channel the water drain.

In extension to the side edges 2a of the pedestal 2 is a so-called platform support 2b, the top is located at the same height as the pedestal 2. On the pedestal 2 nubs 2c are also provided, which run into corresponding blind holes 30c of the bottom plate 30 and thus allow a stable seat of the bottom plate 30 on the pedestal 2.

Around the annular channel around is the designated 6 edge of the support body 1, which - as already stated elsewhere - is covered by the edge enclosure 10 and the edge frame 20.

In the region of the outlet 4, two recesses 7 are provided, wherein the recesses 7 are separated by a web 7 a, which serves to stiffen the carrier body in this area. The recesses 7 are to facilitate the installation of the drain pipes to the sewer pipe out.

The representation of the complete shower tray is shown in detail also in Fig. 2; it can be seen in particular from FIG. 2 that above the annular channel 3, the bottom plate 30 has a slot 40 to the edge frame 20, which ensures the drainage into the channel 3. The circumferential slot 40 shows two mutually parallel side surfaces 46, 47 having an upper opening 48 and a lower opening 49, each having an opening side 48a and 49a. The slope of the slot 40 is now such that the two openings 48, 49 do not overlap, but the lower opening 49 is laterally offset by at least the width 48 a of the upper opening 48. A view into the channel 3 is thus not possible, yet the re-usability is ensured by the inclusion of the bottom plate respectively. Circumferential drip grooves 41 are also provided in the area of the slot 40 in order to prevent the water from running along on the underside of the base plate 30 or on the underside of the edge frame 20.

In order to prevent water flowing out through the slot 40 creeping under the base plate 30 or into the space between the base plate 30 and the carrier body 1 due to the capillary action, the circumferential groove 41 is provided on both sides of the slot 40 according to a first variant. Alternatively, in the region of the slot 40 of the bottom plate 30, a Wasserabweisleiste 45, for example in L-shape of an elastomer o. Ä. Provided. This preferably in cross-section L-shaped bar extends along the slot 40, preferably on both sides of the slot.

It has been found that condensation forms under the base plate 30 in the region of the pedestal 2 under certain conditions. To derive this condensate 2 grooves 35 are provided on the top of the support body 1 in the pedestal, which extend advantageous star-shaped and with a slope from the center of the pedestal 2 of the support body to the channel 3. Through the grooves 35 continues to aeration of the space between the base plate and pedestal of the carrier body.

For assembly, the procedure is now such that initially the prefabricated carrier body, for example made of polyurethane foam on the screed or in the event that a floor-level shower tray is desired, is inserted temporarily in the screed. Then the flow of the support body is marked on the screed or floor. After installation of the sewer, the support body is placed in the screed or on it, depending on the soft installation variant is desired. After connecting the siphon with the sewer, the edge enclosure 10 is then set or only the edge frame 20 is placed, if after one variant, the shower tray is installed flush with the floor, only the bottom plate 30 must be placed at the end. Optionally, the lining of the support body may also be pre-assembled at the factory, depending on which installation variant is to be made.

The advantage of this construction of a shower tray with carrier body is the ease of assembly and disassembly and the absolute water resistance. In addition, the shower tray is beautiful and can be covered with any material.

Claims (20)

1. A shower tub made more specifically from stone, tiles or the like, having a supporting body (1) with a channel (3) and a drain (4) and at least one floor tile (30) adapted to be received by said supporting body (1),
   charaterized in
   that said supporting body (1) comprises at least one landing (2), said supporting body (1) forming together with said at least one landing (2) a water-tight system, said at least one floor tile (30) resting on said at least one landing (2), the water being drainable from said floor tile (30) into said channel (3), said landing (2) being surrounded by a margin (6) to form said channel (3).
2. The shower tub as defined in claim 1,
   charaterized in that
   the channel (3) surrounds the landing (2) like a ring.
3. The shower tub as defined in claim 1,
   characterized in that
   the landing (2) is provided with knobs (2c) on its upper side.
4. The shower tub as defined in claim 1,
   characterized in that
   the channel (3) is inclined toward the drain (4).
5. The shower tub as defined in claim 1,
   characterized in that
   the supporting body (1) is provided with recesses (7) on the underside of the supporting body (1) in the region of the drain (4).
6. The shower tub as defined in claim 5,
   characterized in that
   there are provided two recesses (7) between which a rib (7a) is arranged to reinforce the supporting body (1).
7. The shower tub as defined in claim 1,
   characterized in that
   the drain (4) is surrounded by an annular marginal region (5).
8. The shower tub as defined in claim 1,
   characterized in that
   the landing (2) is cut out in the region of the drain (4).
9. The shower tub as defined in claim 8,
   characterized in that
   a landing standard (2b) is provided behind the drain (4) in true alignment with the landing edges (2a).
10. The shower tub as defined in claim 1,
    characterized in that
    the landing (2) is provided with gutters (35) that extend and decline from the center of the landing (2) toward the channel (3).
11. The shower tub as defined in claim 1,
    characterized in that
    the supporting body (1) is configured as an inherently stable, self-standing box-type structure.
12. The shower tub as defined in claim 1,
    characterized in that
    a slot (40) for draining the water toward the channel (3) is provided in the region of the channel (3) between floor tile (30) and margin, said slot (40) being oriented angularly with respect to the vertical.
13. The shower tub as defined in claim 1,
    characterized in that
    the margin (6) of the supporting body (1) is framed with stones, tiles or the like.
14. The shower tub as defined in claim 1,
    characterized in that,
    for framing the margin (6), said margin comprises a margin frame (20), the slot (40) being formed between margin frame (20) and floor tile (30).
15. The shower tub as defined in claim 1,
    characterized in that
    the floor tile (30) is provided on its underside with pocket holes (30c) for the knobs (2c) on the upper side of the landing (2).
16. The shower tub as defined in claim 1,
    characterized in that
    the underside of the floor tile (30) is provided with a waterproof seal.
17. The shower tub as defined in claim 1,
    characterized in that
    there are provided, on the underside of the floor tile (30), means (41, 45) for preventing water from infiltrating along the underside of the floor tile (30).
18. The shower tub as defined in claim 17,
    characterized in that
    the means (41, 45) is a water-repellent strip.
19. The shower tub as defined in claim 12,
    characterized in that
    the slot (40) is formed by two paralleled side faces (46, 47), the lower opening (49) of the slot (40) being laterally offset by at least the width (48a) of the upper opening (48).
20. The shower tub as defined in claim 12,
    characterized in that
    the slot (40) is configured to surround the landing (2).

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