WO2010026088A1

WO2010026088A1 - Foam shower base element

Info

Publication number: WO2010026088A1
Application number: PCT/EP2009/060977
Authority: WO
Inventors: Christian Bolsmann; Andreas Michel; Jens Wagenfeldt; Manfred Römer; Karl Iglhaut; Peter Blumenberg
Original assignee: Illbruck Sanitärtechnik GmbH
Priority date: 2008-08-26
Filing date: 2009-08-26
Publication date: 2010-03-11
Also published as: EP2315544A1; DE102009043859A1; EP2315544B1

Abstract

The invention relates to a foam shower base element (1), preferably a plate-type foam shower base element, comprising a drain, wherein the drain comprises an outlet bowl (4) with a bowl base and an odor trap formed by a vertical flow undulation, and wherein a drain line (5) runs from the outlet bowl (4) to an edge of the shower base element. In order to provide a foam shower base element that is configured for advantageous installation, in particular for a flat and flush base installation, it is proposed that the odor trap be designed at least partially outside the outlet bowl (4) and that the vertical flow undulation be designed outside the outlet bowl (4) by way of the drain line (5); to do so, the drain line (5), which is placed at the bottom at an elevation equal to the bowl base or higher, is routed within a vertical section (thickness d) of the shower base element at different heights along the length of the drain line such that an odor trap results therein.

Description

Foam shower base element

The invention relates to a foam shower tray element, preferably a plate-like foam shower tray element, with a drain, wherein the drain has a drain pan having a pot bottom and an odor trap formed by a high-level flow diversion and a drain line runs from the drain pot to an edge of the shower tray element.

Foam shower floor elements in the aforementioned plate-like design, for the formation of floor-level showers have already become known in various embodiments. Reference is made, for example, to DE 203 11 666 Ul. The state of the art is also referred to WO2007 / 023149 Al. In addition, in particular with regard to sanitary surfaces or concrete shower trays, which have a downward facing edge angling, to the non-prepublished European patent applications with the application number 08168986, filing date 13.11.2008 and 08168984, with the same filing date. The content of said European patent applications is hereby incorporated in full in the disclosure of the present application, also for the purpose of incorporating features of said earlier European European patent applications in claims of the present application.

There is a need to make such foam shower tray elements as far as possible in terms of installation in terms of installation. Also, a possible universal installation, even under difficult installation conditions, ie, in particular at relatively low available vertical height, be possible. The invention is concerned with the task of specifying an advantageously designed foam shower tray element, in particular for floor-level and floor-level installation. A possible solution to this problem is given in the subject matter of claim 1, being based on the fact that the odor trap is at least partially formed outside the drain pot and the height-wise flow deflection outside the drain pot is formed by means of the drain line, including at a height of the pot bottom or higher drainage line is guided within a vertical extension (thickness) of the shower floor element over its length at different heights. This makes it possible to accommodate the entire process including drain pot and odor trap within the thickness of the plate-like shower tray element. It can over a lower bearing surface of the shower floor element protruding elements that would require a special excavation about when installed, are avoided. In addition, the process can, at least in part, be readily preassembled and, in particular, pre-sealed into the shower floor element at the factory. The seal is preferably achieved by an adhesive layer (see also below), if appropriate, in particular in a transition region to the drain or the drain line also by conventional sealing tapes or a continuous sealing film.

It is not necessary that an actual drain pot is formed in the sense of a cylindrical part. It can also be a deflection, usually from the vertical to the horizontal, act, which is followed by the drain line. In any case, the drain pot here is that region of the drain which, when drained by the drain of the shower tray element, initially runs full until an overflow into such areas of the drain line arranged behind it in the flow direction occurs. It can also be provided, regardless of further water inclusions by vertical deflection of the drain line that in the region of the drain pot itself a complete water seal (odor trap) is already given. Due to the height differences in leadership of the drain line and possibly also in the flow pot itself already provided flow deflection baffle, remains in the pot or said deflection a certain water level preferably stand, which can thus already form part of the odor trap. The odor trap is known to be formed by a re-rising portion, or between two rising portions of the line. With regard to the flat design of the odor trap, which is indicated with regard to the placement in the thickness of the plate-like shower tray element, it may also be advisable to provide such an odor trap two times in the longitudinal extension of the drain line one behind the other.

Further features of the invention are described below, also in the description of the figures, often in their preferred assignment to the claim concept already explained above. However, they can also be important in an assignment to only one or more individual features of this claim concept or independently or in another overall concept.

In particular, it is preferred that it drain line is wave-shaped. This means that the discharge line in a longitudinal cross-section, a cross-section in the flow direction, extends alternately upwards and downwards. "Overall" here means preferably that the change in height is of such an extent that, after the changeover, a line bottom extends in a horizontal plane or above a line blank before the change, with a rise angle and a descent angle. or descent angle in the range of 35 to 55 °, in particular 40 to 50 °., In this case, the angle data, based on the course of the subfloor, in the cross section of the drain line.The top floor or ceiling area of the drain line may have lower rise and fall angles, this also in that, in the region of the height-dependent changes, a reduction in the cross-sectional area of the line can occur. ne central axis is the rise and / or descent angle therefore preferably in the range of 20 to 40 °. With regard to the stated degree range specifications, all intermediate values, in particular in 1 ° increments, are also included in the disclosure. In any case, it can be seen that the angles of ascent and descent are preferably acute angles.

In another detail, it is provided that in the longitudinal direction of the drainage line two formed by formed in the longitudinal cross-section hump-like course of the bottom floor Bodenhin-flow buttocks between which flow obstructions a line ceiling in the sense of a Gegengegenliegenden Deckenbuckels pulled down so far that they are below the humpback peaks of Floor flow obstacles protrude and thus allows an odor trap. This is then the only by the drain line, outside the drain pot formed odor trap.

This given by the hump-like course of the floor bottom soil flow obstacles, cooperating with the line ceiling, correspond to the previously described up and down changing course of the drain line.

The initially formed in the flow direction bottom flow obstacle here represents with its rising edge at the same time the conclusion of the drain pot. The descending flank is part of the formed in the drain line odor trap. The subsequent second floor flow obstacle complements with its rising edge, the descending flank of the first soil flow obstacle and continues to form so in cooperation with the opposing Deckenbuckel the odor trap within the drain line. The descending flank of the second ground flow obstruction also forms the transition into the adjoining ßende usual, preferably formed with a circular cross-section, drain line.

In detail, it is further provided that an overlap between the bottom flow obstacles and the counter hump corresponds to a free vertical opening dimension or more of the discharge line between the humps. In particular, the coverage can correspond to twice the said free vertical opening dimension.

A distance between the bottom flow obstructions, seen in the direction of flow, may correspond to 2 to 10 times the said free vertical dimension.

In particular, it is further preferred that the drain is in any case formed up to the uppermost region of the second bottom flow obstruction having a width which exceeds the thickness of the shower tray element. In particular, a width that corresponds to more than the thickness of the shower tray element, in particular 1.1 to 3 times the shower tray element, wherein here all intermediate values in particular in 1/10 steps are included in the disclosure corresponds.

In detail, it is also important that preferably no check valve is provided. Hereby, on the one hand the desired high flow can also be ensured again supportive. On the other hand, sufficient compensation space is created to compensate for any possible repression of the water column. A high flow rate is also given by the fact that the curvatures are formed with such a shallow angle that in the upper areas in normal use remaining air after some flushing, using a corresponding shower, air-free, thus resulting in a self-priming water column, the additional support zend increases the performance of the outflow. It is preferably no part in the entire drainage system of the shower tray element, which consists of the drain pan and the drain line, available, which could fail due to functional mobility. Further preferred are as separate parts only borrowed an insert in the drain pot and / or the drain pot covering drain grate available. Both parts can be seen easily taken up through the drain hole in the shower tray element for maintenance and cleaning.

Instead of a round or square drain described here can also be provided on the drain pot directly seated channel drain. In this case, the drain pot can be adapted over its full height to the gutter extension (that is, instead of being round, elongated). But it can also be provided in an upper region, the elongated design of the drain pot it. Further, even with the usual round drain pot, which is optionally formed with a slightly smaller vertical extent, a gutter be placed so that the gutter bottom opens directly into the drain pot.

In the interest of a space-saving arrangement, but at the same time in the interests of stability, can also be provided that the floor flow obstacles fit in their respective lower area in the bottom surface of the shower floor element, so possibly form part of the bottom surface of the shower floor element at the same time.

Since the bottom flow obstacles in cross-section at the same time form bridge-like elements, they can also be advantageously understood by appropriate Durchgriffsverbindungen the shower floor element. This penetration connections can be formed integrally with the shower tray element, and more preferably from said foam, at the same time. Between two Durchgriffsverbindungen, considered in the direction of flow, then results in a window-like opening, in which down the drain line odor trap forming bottom portion of the drain or the drain line can be exposed.

The mentioned bridge-like training in the field of flow obstacles is also advantageous in terms of stability. It provides a vault structure that can contribute favorably to the overall stability of the process and also floor element with clamped drainage. In this case, it is also of particular importance that the extent of such a vault, ie from bottom section to bottom section, is about 1 to 3 times, preferably 2 times, whereby here also all intermediate values, in particular in 1/10 steps, in the disclosure is included, the thickness of the shower floor element corresponds.

The procedure described here can also be advantageously integrated into a shower floor element with a marginal grading, as is known, for example, from the non-prepublished European patent application with the filing date 26.01.2009, registration file 09151299.6. The content of this European patent application is hereby incorporated by reference in its entirety, also for the purpose of incorporating features of said European patent application in claims of the present application. It is preferred that the drain pot, possibly by means of an inlet part inserted or screwed therein, opens at the level of the lower stage and preferably also extends only in the height range of the lower stage. This is particularly advantageous if such a shower tray element is formed from two plate bodies arranged one above the other to form the step. The drain can be installed in the lower plate part, for example simply by inserting it from above, and the upper plate part can then be provided in such a way that it does not have any function with regard to the drainage. With regard to the integration of such a sequence into a two-part shower tray element, as disclosed in the aforementioned European Patent Applications 08168986 and 08168984, there is also the advantage that such a shower tray element can be designed with a very small vertical height.

It is further preferred that the shower tray element has a bottom surface and that the bottom of the drain pot runs in the underside surface. At most, it may be up to the underside surface which is 10 mm or less. The integration of the drain pot in the underside surface of the shower floor element is an integration of the drain pot in the bottom, the support surface, the plate-like shower floor element. In this respect, an alignment of a bottom region of the drain pot, preferably if it extends in a planar manner, with the underside surface is preferred. It may also be about several, with their tips located in a common (flat) surface, bottom projections.

With regard to the measure to provide the drain line at a height of the bottom of the pot or higher, it is preferred in view of running at different heights drain line that at least a lower wall region of the drain line above a height level of the pot bottom - in sections - runs.

It is also preferably provided that the drainage line runs at least partially flush with the underside surface of the shower tray element or with a distance of 10 mm or less from the underside surface. In this case, it is also possible to provide sections which, in a lower region of the drain line, are arranged at a significantly greater distance from the lower side of the drain line. Surface. By a final with the bottom surface guide the drain line and the drain pipe in the bottom surface, so the support surface of the plate-like shower tray element is integrated.

Furthermore, it is preferred that the drain line has a width exceeding a vertical extent of the shower tray element. As a result, with a small thickness of the plate-like shower tray element, in particular a thickness of 100 mm or less, a favorable drainage performance achievable. In addition, this can also be achieved in the areas in which the drain line is included in the upper or lower surface of the plate-like shower tray element, a favorable area support.

The drain line can also correspond at least over a partial length of the thickness of the shower floor element. At least over this partial length, the shower floor element is formed in this area in the thickness direction alone by the drain line.

In the previously mentioned embodiments, in which the drain line runs almost or flush with an upper side or a lower side surface of the shower floor element, the drain line is also integrated into the support structure of the shower floor element. There are such surface elements of the drain line exposed or at least provided without an integral with the shower floor element otherwise connected foam cover that - based on the top of the plate-like shower tray element - for small tiles, for example, have a footprint of 1 cm ² or more, for example, towards 25 cm ² , a tile is only within a vertical projection of the - located without such an integral foam cover in the shower floor element - drain line. In particular, it is preferred that the foamed structure of the shower tray element outside the drain pot or a drain grate leaves a passage opening receiving the drain line (in the vertical direction). This passage opening can extend in terms of their length over a third or more, based approximately on a rectangular floor plan, a longitudinal side of the shower tray element. In this case, the drain pot or the drain grate located above it is preferably arranged approximately centrally of the plate-like shower tray element. This is because due to the described design of the drain line with regard to the formation of the odor trap a certain length extension of the drain line is used alone to form the odor trap. This length extension, which is used to form the odor trap, can be about two to ten times a largest diameter dimension of the drain line. This also includes any intermediate values, in particular in 1/10 diameter increments, in the disclosure. The reference to the largest diameter dimension is of particular importance if, as is preferably provided, the discharge line is at least partially and preferably in the region in which it forms the odor trap with a flattened profile deviating from the circular shape, in particular a rectangular profile is formed.

Said passage opening, summarized with the drain pot and optionally an overflow drain hole except opening, is preferably designed like a keyhole. With a relatively large, preferably oriented at a circular shape opening area in the region of the drain pot and an adjoining, oriented to an edge side smaller opening width.

A further embodiment may also provide that the passage opening is rectangular, more preferably with a taper toward the edge. The taper can be provided such that initially over a portion of the walls of the opening wedge-shaped converge toward each other and then extend with a smaller distance to the edge back parallel to each other. A typical maximum width of the passage opening is in the range of 80 to 150 mm, more preferably 100 to 130 mm and in the narrow range 50 to 90 mm, preferably 70 mm.

It is further preferred that the discharge line in the region of the passage opening is a carrier for an adhesive layer for tiling. This adhesive layer can be applied directly to the drain line. It can also be applied to a drain line covering the cover plate. In this respect, in particular a solid plate part is preferred as a cover. It is also possible for the cover part to bridge over the drain line in the manner of a bridge, under the edge-side support on the foam shower floor element, in the region of said opening. On the one hand, the drain pipe should run as high or with the best possible use of the given thickness. On the other hand, it is also preferred, seen to the edge, to provide a certain slope of the drain line after the completion of the trap, in order to further promote the process already in the floor plan area of the shower floor element. The gradient may be, for example, in the range of a few millimeters, about 5 to 10 mm per meter, given. Due to the different height leadership of the drain line to form the odor trap, this also has a certain elastic mobility, especially in the turning areas. If, for example, as preferred, a section of the discharge line which runs in a straight line after the deflections for the odor trap has a gradient of, for example, 0.2 to 0.4%, ie a slight downward gradient, this gradient may also be due to the aforementioned mobility still be increased by elastic deformation readily 1, 2, 3 up to, for example, 4%.

Alternatively or additionally, in the case that the plate part is not provided to the edge or over the entire longitudinal extent of the drain line can Also, a filling of remaining gaps with a mortar-like material, for example. The material of the adhesive layer can be provided. In addition, however, even under the plate part remaining gaps can be filled with said mortar-like material. In this context, it is also preferable to provide the drain line with a foam sheath, for example soft foam sheathing, as is generally known from the sheathing of heating pipes. Further preferably such that stomata remain up to a bottom of the shower floor element or, in the passage opening of the shaft, to a floor on which the shower floor element is set up during assembly. Hereby, on the one hand, the remaining clearances can be kept small in a simple manner. On the other hand results from the backfilling with said mortar and due to the reaching to the bottom gap spaces as it were a mortar vault, which is favorable for a load transfer. A relatively thin layer of mortar is also advantageous in terms of low shrinkage of the mortar during curing. Furthermore, such a foam sheath also offers the associated advantages of sound decoupling and thermal insulation and prevention of condensation.

With regard to the thickness of the shower tray element is further preferred that this is 70 mm or less. On the other hand, it is preferable that the thickness of the shower tray member is 30 mm or more. It should also be noted that the thickness is greatest in the edge region, since a gradient is usually formed on the upper side of the shower floor element to the process. The gradient can be at a shower floor element with an edge dimension of, for example, 1.2 times 1.2 m to a centrally planned drain 15 mm. For this reason, the thickness of the shower tray element, based on 70 mm edge-side, in the area of the direct connection of the shower tray element to the drain pan, must be given as 55 mm, for example. The ratios given here in relation to the thickness of the shower tray element, unless otherwise stated in the individual case, always related to the largest thickness in the outer edge region.

A typical ground plan dimension of the manufactured shower floor element (factory) is given in the range of 1100 by 1100 to 1300 by 1300 mm, preferably 1200 by 1200 mm. Such a shower floor element can be separated on the spot due to the preferred design, as explained below, then on site for adaptation to given dimensions. For example. For example, the adjustment in one direction or in two mutually perpendicular directions can be shortened by up to a third, also because of the pre-sealed end of the discharge line, which is preferably provided with removal to an outer edge.

The aforementioned embodiment of a plate-like shower floor element is particularly advantageous in terms of the formation of a shower place composed of several plate-like shower floor elements. In this case, however, preferably only one, more preferably a central, shower floor element has the said drain with subsequent drain line, with partial formation of the trap through the drain line. In this respect, the shower floor element consists of a drain and the drain line with the odor trap having base element. Next from one or more attachments. , The preferred factory pre-sealed drain line, including the drain pot, which is also preferably integrally formed with the drain line, can conclude with respect to a connection end for an on-site to be connected on-site drain forwarding with a peripheral edge of the base element. However, said connection end can also protrude like a plug from the base element. In addition, it may be set back with respect to the peripheral edge. In the case of the set-back arrangement, it is particularly preferred for the connection end to is set back under a cover plate. The cover plate ends in this case at a distance from the peripheral edge of the base element. Also in this case, the terminal end can be flush with the edge of the cover plate or be given further set back under the cover plate. The drain line can then be continued by connecting a drain forwarding, which is preferably by simple horizontal connector, possibly by means of an overarching sleeve, in the base element or a mounting element. For this purpose, it is also possible to cut or fill out predetermined or freely selected openings, for example also predetermined outbreak openings. The assembly of the base member with one or more attachments may be provided butting abutting. Here can be achieved on the upper side, for example by known sealing tapes or films, the sealing. But it can also be a tooth-like meshing of edge portions of the base member and the o- or the add-on elements may be provided, which are prestructured accordingly edge side. In such a case, a sealing of the resulting joining region by a covering sealing tape or a covering sheet covering the surface, or possibly with edge overhang for connection to the surrounding soil or masonry may additionally be provided.

The attachments may be formed in particular like a bolt, so with a rectangular plan and preferably also rectangular cross-section. In this case, they are furthermore preferably provided in a set, that is to say summarized or as additional parts for a shower floor element described here, such that at least one of the locking elements exceeds the marginal edge length of the shower floor element. So can be designed with the add-on elements cheap blunt abutting corners.

In addition, the shower floor element, as described here, can be adapted to a favorable spatial extent, in particular by means of partitions parallel to it the drain line, accordingly offset laterally thereto, or in a region opposite to the extension of the drain line.

The drain line has, in particular with regard to the non-circular cross-section already mentioned, at least over part of its extension to a horizontal dimension which is greater than the free vertical dimension.

The embodiments described here are provided in particular as a gravity-driven sequence (passive sequence). However, they can also be provided with drain support, for example by means of an electric pump (active drain).

In the following, the invention will be explained further with reference to an exemplary embodiment, with reference to the attached drawing. Hereby shows:

Fig. 1 is a perspective view of a shower floor element with

Drain line;

FIG. 2 shows an illustration according to FIG. 1, in an exploded view; FIG.

3 shows an alternative representation of a shower tray element;

4 shows a cross section through the article according to FIG. 1, cut along the line IV-IV;

5 shows a representation of a composition of a shower base element with shower floor attachment elements; and

6 shows a cross section through the object according to FIG. 5 (only base part) in the plane VI-VI; 7 shows a perspective view of a further shower floor element in an alternative embodiment;

8 shows the shower tray element according to FIG. 7, in a fragmentary illustration and exploded view;

Fig. 9, the shower tray element of FIG. 7, cut in the plane

IX-IX;

Fig. 10 is a forth enlargement of the area X in Fig. 9;

11 is a further perspective view of an arrangement of a

Sequence in a stepped shower floor element;

12 shows a cross-sectional view, in exploded view, of an arrangement of the drain in a vertically divided shower floor element, wherein a sealing strip is integrated in an upper part;

FIG. 13 shows an illustration according to FIG. 12, wherein the sealing strip is integrated in the lower part; FIG.

Fig. 14 is an exemplary illustration of the drain part alone;

FIG. 15 shows a cross section through the article according to FIG. 14; FIG.

FIG. 16 shows an alternative embodiment of the drain, with two drainage zones facing each other and oppositely directed; FIG. FIG. 17 is a view according to FIG. 16, but with the drainage areas running at right angles to each other; FIG. and

FIG. 18 is an illustration according to FIG. 17, but the second drainage area is formed only as a conventional drainage line.

Shown and described, first with reference to Figures 1 and 2, a plate-like shower tray element 1, which consists essentially of a foam body 2. With regard to the foam, it may in particular be a particle foam. For example, an EPS particle foam. It may also be an extruded foam, XPS foam. Furthermore, it can also be an integrally foamed foam, for example a polyurethane foam. The foam can be given here with a higher density to the outside; but it can also be a total homogeneously foamed foam.

The plate-like shower tray element 1 in the embodiment has a thickness d of 70 mm. As can be seen, this is focused on the thickness in the edge region. Due to a gradient usually formed towards the slope, the thickness is immediately lower at the outlet. Compared to the edge, the thickness at the outlet, for example, by 5 to 20 mm lower, and this is particularly dependent on the overall size of the shower floor element.

At least on the upper side, possibly also on the front edges, possibly also on the underside, the foam element is provided with a bonding agent layer. For example, it may be a polymer dispersion, especially a non-reactive polymer dispersion. Also, for example, an acrylate dispersion. It can contain organic and / or mineral filler. The primer layer can also be made of a plastic mortar combination consist. These are understood in particular mixtures of hydraulically setting binders (eg Portland cement). These may have mineral additives and / or organic additives and / or polymer dispersions as a proportion. In addition, the coating can also consist of another mortar coating.

This primer layer allows to apply a sanitary surface in the form of tiles in a favorable manner. This is, for example, to understand a natural stone, possibly in the form of an integral plate, so for example. Natural stone slab. On the other hand, because the said adhesion mediator layer is not necessarily required, an integral sanitary surface, consisting for example of an acrylic material, can also be applied to the plate-like shower floor element 1. Instead of or in addition to the described adhesion promoter layer, a film cover serving also for this purpose may be provided. It may also, for example., If necessary, also act on the film cover, an epoxy resin coating. In particular, in the event that, for example, an XPS foam or a PU foam, so in each case a cellular foam and no particle foam, is used, can be completely dispensed with such a cover layer or adhesive layer.

In Fig. 1, tile parts of a tiling are merely exemplified.

In the central region of the shower floor element 1, a drain grate 3 is provided with an underlying drain pot 4. At the drain pot 4 includes a drain line 5 at the side. The drain grate 3 can in this case also be formed elongated trough-like. It can also be a drain gutter.

Furthermore, an odor trap is provided in cooperation between the drain pan 4 and the drain line 5. This can be done first by a suitable, be given in the drawing not shown baffle in the region of the drain pot 4. Next by the height-wise deflection, which is basically indicated in the drawing, the drain line 5. By the latter, the odor trap is at least partially outside of the drain pot 4 in cooperation with the drain line 5 is formed. The height-related flow deflection given for this purpose is attributable in particular to two deflection regions, the regions 6 and 7, of the discharge line 5. The drain line 5, as shown in more detail approximately from Fig. 2 and Fig. 4, in this case runs in the entire shower floor element at a height of the pot bottom 8 or higher. In particular, when the pot bottom extends in the underside surface of the shower tray element. Overall, the drain line 5 runs within the thickness d of the shower tray element 1 in the mentioned leadership of the drain line 5 over different heights.

It is also important that the extension of the drain line 5 with respect to the formation of the odor trap, including in particular the bypass 7, more than the simple, up to five or ten times a width b of the drain line 5 extends. In this case, the width is addressed by b, which is given in the area adjacent to the drain pot at the beginning of the rejuvenation to the connection part 12 out. This prolonged formation of the odor trap may also be expressed by, in combination with or independent of the reference to the width b of the drain line, that this area of the drain line 5 extends beyond a dimension which is more than the thickness d of the shower tray element, in particular a measure that is up to five times, further up to ten times or more of the thickness d of the shower floor element. In this case, the disclosure also includes all intermediate values, in particular in 1/10 thickness increments (based on the thickness d of the shower floor element). This illustrates the substantial lengthwise inclusion of the drain line 5 in the formation of the odor trap. As is apparent from a synopsis of Figures 1 and 2, an elongated through-hole 9 is provided in the plate-like foam part 2 for receiving the drain pot and the subsequent drain line. The length of the through-passage 9 corresponds at least to the dimensions of the outlet, in particular the drainage pot 4 and the length of the drainage conduit 5, which are used in this direction and which are used to form the said odor trap. Preferably also beyond.

Further, it is preferred, as is apparent in particular from FIG. 2, that this opening 9 is closed off at the edge of the shower tray element by a remaining, preferably integrally foamed, wall 10. In the course of the preferably factory-provided Voreindichtung the drain enclosing the subsequent drain line, this wall 10 can be used as a plug-in wall for receiving a then preferably via a relevant end face 11 of the shower tray element 1 protruding connecting part 12 of the drain line. This facilitates the assembly and sealing. Further, the assembly and sealing can be facilitated by the fact that in the region of the grate and / or the drain pot and / or over the length of the drain line a Aufsetzstufe is formed in the shower tray element. Then the drain part, so in particular the drain pot and / or the drain line, come in accordance with counter-stage training in the course of insertion from above for placement. A fall down is prevented.

In an alternative embodiment, as shown in Fig. 3, provided for receiving the drain pipe in the shower floor element from above accessible recesses 13 which are interrupted by wall parts 14 left standing. Preferably, the outputs are 13 holes around Durchgangsausnehmungen. The wall parts 14 allow breaking and inserting the drain line 5 from above into the shower floor element. In particular, a plurality of such possible line guides can be provided in this way, so that a basic shape for the design of running in different directions drain lines can be used.

As can be seen in particular from the illustration according to FIG. 4, the drain line 5 has at least sections a rectangular cross-section. Essential is a larger dimension of the cross section in the horizontal direction than in the vertical direction. It may also be, for example, an oval cross-section. Here, a dimension s of the drain line 5 is less than the thickness d of the shower floor element, at least in the subsequent area of the shower floor element. By contrast, the width dimension b already mentioned is greater than the thickness d at least in this area, but preferably also over the entire extension of the shower tray element.

Furthermore, it can be seen that the drainage line 5 runs at least in sections over its length on the underside with a bottom side surface 15 in alignment. It is included in the floor design of the shower floor element. On the upper side, if necessary, in sections, an aligned course may be provided with an upper side of the shower tray element. In the exemplary embodiment, the drain line 5 is covered on the upper side by a cover plate part 16. This cover plate part 16 rests on the edge of the foam part. Here in the area of a step formation 17. The drain line 5 is preferably integrated into the support structure of the shower floor element. This means that when a force acting on the vertical projection surface of the drain line, possibly reduced to this area, load the drain line contributes significantly to the stability. It has to absorb the corresponding burden. On the upper side of the drainage line 5 or in the exemplary embodiment on the upper side of the plate part 16 the already mentioned adhesion promoter layer can be applied for the direct application of tiles.

Referring to Fig. 5, it will be understood that a set-like assembly may be provided of a drain having base portion and associated attachments 18. Such an attachment 18 may also be provided with a primer layer or, if appropriate, a film serving for this purpose, in one of the embodiments as described above. It is particularly possible, in an attachment 18, a drain line continuation 19, which may be integrally formed on a plug-like projecting connection portion 20 of the drain line, with respect to the base part. If, as is preferred, the base part is selected with a size which is usually not undershot, for example 70 × 70, 80 × 80 or 90 × 90 cm, it is regularly not necessary during installation to change the already pre-sealed section of the drain line again , Rather, the possibly the installation conditions owed special installation can then be made alone in an attachment 18.

With reference to FIG. 6, a cross section through the shower tray element is shown. The drain pot 4 is not formed to the bottom, the back surface of the shower floor element, throughout. However, this can nevertheless also be provided. In this case, the drain line 5 would also connect to the underside and not first perform a curvature down, but initially a curvature upward. In any case, concerning the lower wall of the drain line 5. The latter design is particularly favorable if, as preferred, already in the drain pan 5 a water level remains, so a part of the odor trap is completed. Here it can also be seen that the cross-sectional profile of the drain line 5 can change. In the front region near the drain pot, a rectangular cross section is preferably provided. If this then merges into a round cross-section at the end, an increase in diameter is also preferred. Preferably, the Drain line 25% or more up to 100% of their extending in the shower tray element length range formed with a rectangular cross-section. However, it is also preferred that 5% or more of their respective length range is formed with a round cross-section. Also included in the disclosure are all intermediate values, especially with 1% increments. For example, more than 26% square and / or more than 6% round etc.

Instead of a drain line and in order to accommodate a certain amount of water, in such a shower floor element - also preferably factory pre-sealed - several such drain lines in one of the described embodiments, which then preferably connect to a common drain pot, be provided.

Furthermore, as is also apparent from FIG. 6, it is further preferred for the already pre-sealed drainage line 5 to have a plug-type connecting piece 12 projecting from the edge side 10. In particular, when assembled with attachments and in this case a further laying of the drain line can be connected to this without the Voreindichtung the drain line 5 would have to be touched in the base part.

In particular, in this context, a procedural embodiment of the invention is given.

The invention also provides a method for forming a shower place, which is composed of a plurality of plate-like foam shower floor elements, wherein a base part and one or more attachments are provided, in the base part factory already a drain and a drain line are sealed, with training an odor trap, and further wherein the drain line associated with an edge of the base part in the base part has a connection end and the fitting adaptation only hin- visibly an attachment is made or that an adjustment takes place only by separating the base part without damaging the Voreindichtung. Installation adaptation means cutting off or separating such a foam Toffteiles. The base part is this either in a (small) standard size, ie in various combinations always in the same size dimension, provided or in a large standard size, eg. The above mentioned 1200 times 1200 mm, so that in most cases only a reduction of the base part is required. In this case, no sealing connections with regard to add-on parts are required, although add-on parts can also be attached to such a base part of a large standard dimension. "Factory" means in connection with this application, on the one hand, that the possibilities of mass production are used, so that such parts are always practically the same, and / or on the other hand, that a shower floor element with such pre-sealed drain already by a plumber, at a dealer, The pre-seal is obviously related to the drain pot (at the edge with respect to the respective opening of the shower floor element) and the preferably integrally formed drain line up to the said connection end and, if provided, beyond that also the Voreindichtung of the drain line cross Closure parts, for the closure of the shaft in which the drain line extends, upwards, ie in particular the described plate part.In addition, if necessary, a separate drain grate carrier (see cover 45 in Fig. 10) Additional sealing of the possible in the shower floor element, but be done with regard to the seal to drain pot. Next subject in procedural terms is also in this regard a method for manufacturing and assembly of a shower tray element, wherein the shower tray element a drain, a drain line and a line in the drain and / or drain trained odor trap, further wherein the drain line has a terminal end, said then further it is essential that the expiration and the outlet line, including the odor trap, are factory pre-sealed, the connection end is factory provided at a horizontal distance from the drain, wherein, according to an at least partially upwardly open shaft, in which the drain line runs, the connection end at already at a mounting location the shower floor element lying on the floor remains accessible from the outside for visual inspection, wherein further under horizontal plug-in allocation during installation at an installation a drain forwarding is connected and is tested on a lying shower floor element, the tightness of the connection of the drain-forwarding. The design of the shower tray element with a pre-sealed drainage line and a non-deducted drain end, laterally to the drain pot, preferably, for example. A distance of one tenth to one third of the factory default size dimension, ie, for example, the width of 1300, 1200, etc. mm , allows with respect to the connection of the drain-forwarding still required leak test already resting on the floor and with the floor, for example. Bonded shower floor element at the installation. The shaft is then still open and it can be poured into the drain pot of water. With the eye, the junction of the pre-sealed drain line to the drain forwarding can be completely checked in so far just already lying at its final location and possibly anchored shower floor element. Thereafter, after visual inspection of the tightness, then the shaft, eg. In the already written way, can be filled and closed. It is also essential in this connection that the design of the shower tray element with respect to the connection of the drainage forwarding enables a simple, horizontal plug-in or overlap mounting, for example with a sleeve part. No vertical connection work is required. These possibilities and advantages also arise when a connection, possibly further connection, is to be carried out in an attachment. With reference to FIGS. 7 to 9, a modification of such a shower tray element modified with regard to the discharge part is shown and described.

The here integrated drain part, which is also shown in Figures 14 and 15 in detail, initially has a drain pot 4, in which an insert part 21 is inserted. This insert 21 provides together with the pot boundary, which is given here by the bottom 22 of the pot or the transition into the drain line, a first odor trap. In a first filling of the expiration part results in a water level before it comes to the inlet in the area after the first bottom hump 23, as indicated by the line L. Since this line L extends above a lower edge 24 of the insert part 21, thus results in the region of the drain pot thereby a first odor trap.

It is essential with respect to such a drain pot 4 with insert 21 and the ratio of different given here water volumes. A first volume of water is provided in the insert 21 from the waterline L to the lower edge 24 of the insert. A second volume of water is provided in the drain pot 4 from the waterline L to its bottom, minus the first volume of water. A third, possible (refilling) volume of water is given in the insert 21 of the now, for example, in Fig. 9 shown waterline L to the drain grate 3, including the radial magnification below the drain grate 3 and above the upper edge of the insert part 21. The drain pot is preferably formed so that the water line L coincides with the ceiling of the drain pot 4, which is located radially outside the drain grate 3, in the normal state.

The proportions of the drain pot 4 and the insert part 21 and the drain grate 3, the said radial enlargement by its downward protruding edge, are preferably provided so that the first volume of water corresponds to one third to two thirds, more preferably half, of the second volume of water. In addition, the third volume of water is equal to or greater than the first volume of water, preferably in the range of 0.8 to 1.5 times the first volume of water. All interim values, in particular in one-tenth steps, are also included in the above-mentioned water volume ratios.

It can be seen that the drain line is wave-shaped. In the cross section of the shower tray element it changes from bottom to top, back down and back up and then goes over into the connection part 12th

Up to the transition into the connecting part 12, a significantly greater width b is given, see also FIGS. 4 and 14, as it corresponds to a free vertical opening dimension V of the discharge line between two projections.

In the region of the drain pot, the ceiling area is initially, starting from an edge region 26 forming the attachment area for, for example, a drain grate 25, drawn down by a dimension x, wherein the dimension x corresponds to approximately one third to one half of the dimension V. The ceiling area then extends approximately horizontally to slightly increase in vertical coverage with the rise of the bottom area and then run in the region of the first hump 23 plateau-like at 27.

A central axis of the transition from the drain pot into the drain line, up to a region of the first hump, is less steeply rising than the associated bottom area. While the bottom region of the drain pot or the subsequent drain line in the region of the first hump rises approximately at an acute angle of 45 ° to a horizontal, a central axis in this area extends only at an angle of approximately 30 °. In the following However, the sloping region of the first hump results in a matching angle course of the central axis with the floor area and the ceiling area. Here is enclosed with a horizontal approximately an angle of 40 °. Then, a ground plateau joins at 28 to then pass into the second hump 29. Starting approximately from the ground plateau 28, the vertical dimension V expands somewhat, but is again in the peak area of the second hump corresponding to the area indicated in the area. The connection line 12 has obviously a diameter corresponding approximately to 3 times the dimension V.

Because the ceiling area of the outlet between the two flow obstacles or projection areas 23 and 29 is pulled down over the tip areas of the humps, an odor trap results there as well.

On the upper side, the drain in the opening area 30 of the shower tray element is initially exposed. This opening region is also designed as a passage opening, wherein in the exemplary embodiment, only two bridges like remaining connections 23, 29 are provided. Outside the region of the drain grate 25 is provided in the embodiment that a thin plate member 31 is provided for covering. This plate member 31 may be, for example, a sheet metal part 31. It can also be a solid plastic part. It is further provided, as can be seen from FIG. 10, that the cover part 31 can grip under a mounting edge 32 of the discharge part.

In this context, it is preferred that, as shown in FIG. 10, a peripheral edge 48 of the mounting rim 32 of the annular cover 45, which incidentally belongs to the already factory pre-compressed parts described above, in cross-section Uf örmig of a Kleberaupe 49th is included. It may be here to conventional adhesive, for example. An MS polymer, act. Since, moreover, a slightly lowered support rim 50 (cf., FIG. 8) for the plate part 31 or a flange edge of the cover 45 is also covered with a preferably continuous adhesive bead of this type, this also results in the connection areas on the edge, ie, at the transition to the cover Shower floor element, the desired complete, here three-dimensional required sealing.

With reference to FIG. 11, an arrangement of the drainage part according to FIGS. 14 and 15 is shown in a shower tray element with edge-side channel, as in the Ub- rigen, with the exception of this expiration, from the already mentioned above, not previously published European patent application with the application number 09151299 is known.

As can be seen, the drain part extends almost exclusively in the area of the vertical height region Vx of the shower floor element forming the lower step-like projection. It is also possible here to provide bridge-like support sections 33 which protrude freely at the edge-side arrangement. However, it is preferable in this context to work without such support sections. As can be seen, the drain part is arranged to run in a rectangular orientation to a gutter. It may therefore be provided on the edge side of the shower floor element and form as it were with an edge termination.

Specifically, in addition to the insert part 21, a screw-in part 34 is provided, which is used for clamping against a bottom region 35 of the here following to the gutter, quasi top-side drain pot, which is then supplemented by the bottom drain pot of the expiry. Interposed between the top drain pot and the bottom drain pot is a circumferential, approximately wedge-shaped in cross-section seal 36th The embodiments of FIGS. 12 and 13 relate to the integration of a drain part, as shown in FIGS. 14 and 15, in a shower tray element, as known from the aforementioned European patent applications with the application numbers 8168986 and 8168984. Here arises from the well-known in this context bipartite between the upper part and lower part of a convenient installation option for the drain part in the lower part.

The lower part provided here with the reference numeral 37 has, in the same way as described with reference to FIG. 9, for example, the drain part. Only that the flow part here is associated with an inlet part 38, which then compensates by the upper part 39 then resulting additional height. In addition, in the embodiment of FIG. 12, the cover can also be omitted by the part 31 according to FIG. 8. Optionally, the underside 40 of the upper part 39 may also be structured in such a way that it adapts directly to the curved profile of the discharge part on the upper side.

In the subject matter of Fig. 13, as also known from the corresponding European patent application mentioned above, the sealing tape 41 is integrated in the lower part 37, i. factory sealed, provided. Otherwise, basically the same conditions as described above with reference to the embodiment of FIG. 12 result. For this purpose, a coating 43 is provided in detail on the lower part 37, in which the sealing strip 41 is embedded. For further details, in particular, reference is made to the aforementioned European patent application. In this case, it may again be advisable to provide a plate part 31 in the area of the discharge part, which then also carries the said coating.

In particular, it is also preferred, both in the embodiment of Fig. 12 as in the embodiment of Fig. 13, that the inlet opening 43 in the sanitary surface 44 with respect to a base surface of the shower base part is arranged at the edge and according to the drain part also extends edge side of the shower tray element.

With reference to FIGS. 16 to 18, further embodiments of the drainage part as such, as may then also be fitted into the described shower tray elements, are shown.

In the embodiment of FIG. 16, as it were, two drainage parts according to FIGS. 14 and 15 are integrated with respect to one another, but only one common drainage pot 4 is formed.

In the embodiment of FIG. 17, two such processes are shown formed at right angles to each other. This, as well as the subject matter of FIG. 16, preferably in one-piece design. But it can also be two such expiration parts welded together accordingly. Also in the embodiment of FIG. 17 only one drain pot 4 is provided. Obviously, the drain members of the embodiment of Figs. 16 and 17 do not necessarily correspond to the drain members shown in Figs. 14 and 15, but they have one or more of the features described in this application for drainage and drainage.

In the embodiment of FIG. 18, the drain pot 4, as can be seen, is adjoined on one side by the design of the drain previously described with the flow obstacles, while on the other side, here at right angles to the first drain part, a drain pipe corresponding to the connecting piece 12 immediately adjoins, that is also provided immediately starting from the drain pot 4 then.

For the discharge part, as used here, in particular a discharge part GE measure the FIGS. 14 to 17 in one of the applications according to FIGS. 7 to 13, are, individually or in combination, in particular the following features also important:

The bottom wall of the drain pot and the bottom wall extending between the two legs of the drain line extend on the same horizontal plane.

The largest vertical height of the first hump is higher than the largest vertical height of the second hump.

The plan of the sequence is, in preferred one-piece design, such as a blown, basically rectangular with a centrally on a narrow side protruding tube part, the mentioned connection part 12. It is understood that in spite of the there also given substantially rectangular design (outside of the connection part 12) there is an edge rounding (inside and outside). Preferably, the drain or the drain line made of thermoplastic material.

The width of the drainage outside the connection part 12 is preferably twice or more greater than the height of the drainage part, the latter defined by the lower vertical plane in which the straight bottom sections given in cross section run and the upper plane in which the upper wall in the region of the first humps runs.

The connection part 12 has a preferably substantially circular cross-section. More preferably, it runs at a low angle, for example, 1 to 10 °, in which case also intermediate angle, in particular in 0, l ° steps are included in the disclosure, to the horizontal. Among other things, this also ensures that the necessary vertical clearance is achieved in the peripheral area. is to make a connection to a continuation of the drain pipe by means of a sleeve part, as is preferably carried out.

After seen in the direction of flow second hump is seen in cross section, the upper wall continues horizontally or slightly increases until it merges into a horizontal wall (in cross-section, as I said, preferably a circular cross-section) of the connecting part 12. The lower wall extends from the second projection downwards until it also merges horizontally into the wall of the connection part 12. This wall of the connecting part 12 is preferably located vertically above the horizontal surface in question, in which the lower wall is in the region of the drain pot or between the two bosses. This vertical distance preferably corresponds to a half measure of V. The drop of the wall downwards in the transition region to the connection piece, after the second projection, is stronger than an optionally given rise in the region of the upper wall.

Contrary to what is evident from the cross-sectional illustration, the flow cross-section perpendicular to the illustration in FIG. 15 in the region of the second projection, above, is greater than the inlet cross-section of the connection piece 12.

The drain pot 4 has on the upper side an annular cover 45, see for example Fig. 10, which may be welded to the peripheral edge visible in Fig. 14 46 or may be connected in any other way in the installed state. This cover is protruding outwards. It also forms the already described part 32. Inside it forms a support edge, in which the already mentioned grid or other closure element can be accommodated. The insert 21 sits by means of protruding feet on the bottom portion of the drain, so that there can be a flow. It can also be pulled out of the drain pot, for cleaning purposes, for example.

Overall, the drain part has a vertical extension over its entire length, which is preferably 65mm or smaller.

In the region of the drain pot, closed continuation stubs 47 can be provided in the exemplary embodiment, one or more of which can be opened if necessary and connected to lines.

The flow cross-section in the region of the first hump, whose uppermost region is preferably smaller than the flow-through cross-section in the region of the following, second hump, also in its uppermost region. It is also preferably smaller than each flow area that lies in between.

All disclosed features are essential to the invention. The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims

1. Foam shower tray element (1), preferably a plate-like foam shower tray element, with a drain, said drain having a pot bottom drain pot (4) and an odor trap formed by a high flow diversion and from the drain pot (4) a drain line (5 ) to an edge of the shower tray element, characterized in that the odor trap is formed at least partially outside the drain pot (4) and the heightwise flow deflection outside the drain pot (4) by means of the drain line (5) is formed, including the underside at a height of the Pot bottom or higher scheduled drain line (5) within a vertical extension (thickness d) of the shower floor element over its length is guided at different heights that results in an odor trap within the drain line.

2. foam-shower floor element according to claim 1 or in particular according thereto, characterized in that the drain line (5) is shaped like a wave.

3. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that in the longitudinal direction of the drain line (5) formed by two in the longitudinal cross-section hump-like course of the line bottom

Floor flow obstacles (bottom hump 23) are formed, between which flow obstacles a duct ceiling in the sense of a Gegengegenichteten Deckelbuckels pulled down so far that it extends to below the humpback peaks and so makes an odor trap allows light.

4. foam floor element according to one or more of the preceding claims or in particular according thereto, characterized in that an overlap between the bosses and the counterbolt corresponds to a free vertical opening dimension (V) or more of the drain line (5) between the bosses.

5. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the overlap measure up to 2 times the free vertical opening dimension (V) corresponds.

6. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that a distance between the floor flow obstructions corresponds to two to ten times the free vertical opening dimension (V).

7. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain line (5) in the flow direction after the second Bodenströmungshindernis in a drain line usual diameter (drain forwarding or drain line-continued 19) Connecting piece, for example, DN 50, passes.

8. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the transition is given by a vertical extension and horizontal narrowing.

9. Foam shower tray element according to claim 1 or in particular according thereto, characterized in that the shower tray element (1) has a bottom surface and that the bottom of the drain pot in the underside surface or at a distance of 10 mm or less to the underside Surface runs.

10. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that a lower wall region of the drain line at least partially extends above a height level of the pot bottom.

11. foam shower element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain line extends at least partially terminating with the lower side surface of the shower tray element or with a distance of 10 mm or less to the lower surface.

12. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain line is a vertical extension of the

Shower floor element has superior width.

13. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that a vertical height of the drain line over at least a partial length of the largest or smallest thickness, or a thickness between the largest and the smallest thickness of the shower floor element corresponds ,

14. Foam shower tray element according to one or more of the preceding hergehen claims or in particular according thereto, characterized in that the drain line (5) is integrated into the support structure of the shower floor element.

15. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the foamed structure of the shower floor element outside the drain pot or a drain grate leaves the drain line receiving passage opening.

16. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain line is in the region of the passage opening carrier of an adhesive layer for a tiling.

17. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain line is covered by a solid plate part formed as a cover member (31).

18. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the cover is bridge-like, under edge-side support on the foam shower floor element, the discharge line is arranged überende- ckend.

19 foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the cover member is a carrier adhesive layer for a tiling.

20. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain including discharge line is pre-sealed in the shower tray element.

21. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that, preferably given at the edge, the largest thickness of the shower floor element is less than 70 mm.

22. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the thickness of the shower floor element is 30 mm or more.

23. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the shower floor element consists of a drain and drain line with the odor trap base element and one or more attachments and that the factory pre-sealed drain line from the base element like a plug projects, terminates with an edge side of the base member or offset from an edge side of the base member inwardly ends.

24. foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that the drain line has a rectangular cross-section at least over part of its extension.

25. Foam shower floor element according to one or more of the preceding claims or in particular according thereto, characterized in that a free horizontal dimension of the drain line exceeds at least over part of the extension of the drain line a thickness of the shower floor element.

26. A method for forming a shower stall, which is composed of a plurality of plate-like foam shower floor elements, characterized in that a base part and one or more add-Ie are provided that the base part factory sealed already with a drain and a drain line, under training an odor trap is provided, wherein the drain line associated with an edge of the base part in the base part has a connection mouth, and that an installation adjustment is made only with respect to a mounting part or that a base part is provided, in which a pre-sealed drain line is provided with a laterally to a drain pot freely accessible connection end, wherein further at the installation, a connection of a continuing flow forwarding is made and an adjustment is made only by separating the base part, without damaging the Voreindichtung.

27. A method for producing and assembling a shower tray element, wherein the shower tray element has a drain, a drain line and an odor trap formed in the drain and / or drain, wherein the drain line further has a connection end, characterized in that the drain and the drain line, including the trap, is factory pre-sealed so that the connection end is provided at the factory at a horizontal distance from the drain, with at least a partially open-topped shaft in which the drainage line runs, the connection end remains accessible from the outside at a location on the floor resting shower floor element from the outside for visual inspection, being further under horizontal mating assignment during installation at an installation a flow forwarding is connected and - preferably still-lying and beyond preferred already sealed with a floor or otherwise attached shower floor element, the tightness of the connection of the drain line is checked.