EP1799081B1 - Shower pan element - Google Patents

Description

The invention relates to a shower floor element according to the features of the preamble of claim 1.

Such shower floor elements are known in particular for the formation of floor-level showers. Here, for example, on the DE 10131338 A1 directed. In this shower tray element, the support body is coated with a coating mortar (thin slurry). In this layer of mortar, a Gewebearmierung be embedded. Further, this mortar layer is covered by a covering this sealant, which is made of acrylic resin or polyurethane-based. This additional layer simultaneously forms a waterproof adhesion-promoting layer on which adhesive can be applied for laying floor tiles. The acrylic or polyurethane sealant can replace the mortar layer. The core material for the support body is expanded polystyrene (EPS).

Based on the above-described prior art, the invention has the object to provide an advantageous shower floor element.

This object is achieved in the subject matter of claim 1, wherein it is based on the fact that the bonding layer is waterproof and that the density of the support body is greater than 60 kg / m ³ .

The adhesion-promoting layer may be a plastic-regulated mortar. You can also call the mass as a sealing foam. With a cure by drying. Here also a so-called hydraulic use sealing compound. According to this embodiment of the invention, a shower floor element is created, which is characterized by a simple structure. This shower floor element is simplified manufacturing technology. The coating of the support body with a load-increasing coating (for example, mortar layer) is eliminated, as a result of which shorter drying and handling times can be achieved in the course of production. The core material used is preferably expanded polystyrene (EPS), with an increased bulk density. It is further preferred that this EPS is water repellent by the addition of a hydrophobing agent. The increased density is selected such that, when the shower floor element is used as intended, the forces acting on it, in particular vertical forces, do not allow any deformation of the support body. Such deformation would affect the adhesion between the support body and tile adhesive or tile adhesive and tile or beyond between the support body and sanitary surface body with the resulting, known crack damage. The reduced weight due to the omission of the known mortar layer shower floor element is also better to handle when installing on site.

The essential concept of the invention is also to be described in that, omitting a layer of mortar covering elements such as tiles or, for example, consisting of a hard plastic material Sanitäroberflächenkörper are connected to the support body only by means of a primer layer or can be connected.

The adhesion-promoting layer is rolled up, for example. In the case of a sealing foam, this is sprayed on. He then flows into each other. He needs a certain amount of time to get stuck. It is preferred that only the top of use, which is optionally formed with a slope, with the adhesion-promoting layer is covered. If necessary, also the front sides. It is also conceivable complete enclosing of the support body by the adhesive layer. Not least by diving. In the case of larger-sized support bodies, the adhesion-promoting layer can have a reinforcement, for example in the form of a woven fabric or in the form of incorporated fibers. As a result, the bending stiffness of the support body is further increased. Also can be provided on both opposite broad sides of the support body adhesive layers, for example, for improved attachment of the support body with the ground. Accordingly, the lower, the Rohfußboden facing adhesive layer may have a reinforcement. Due to the selected high density and preferably in conjunction with water-repellent equipped expanded particle foam such as EPS, the support body is sufficiently waterproof. This density can be further increased by the waterproof configuration of the adhesion-promoting layer. As a further advantage, the inventive design of the shower floor element also proves to be with regard to the integration of a drainage frame, as in this area pressure forces can be better removed by the support body.

It is further proposed that the bulk density of the support body is greater than 70 kg / m ³ , more preferably greater than 80 kg / m ³ , more preferably greater than 90 kg / m ³ and in particular about 100 kg / m ³ but also up to 110 kg / m ³ or beyond. The primer layer can serve as a base for a tile adhesive. In addition, there is also the possibility that the support body is arrested only by means of the adhesion-promoting layer with a trained as a deep-drawn part sanitary surface body. Accordingly, such an adhesion-promoting layer also serves as a fixing agent, for example an adhesive for fixing the sanitary surface body on the support body. Such a sanitary surface body is preferably in one piece, ie the entire room side In the form of a stone slab or in the form of a shower tray, which is produced as a plastic body by deep-drawing process. The adhesion-promoting layer, which is used in particular for direct adhesion to a room-side sanitary surface body, is preferably an adhesive based on a modified silane or based on a viscoelastic polyurethane composition. Accordingly, a tension-free, non-rigid or brittle adhesive is given, the damage can absorb shock loads on the sanitary surface body without damage.

Fig. 1

einen Tragkörper aus Hartschaumstoff in perspektivischer Darstellung;

Fig. 2

eine partiell geschnittene, perspektivische Darstellung des Duschbodenelements mit aufgebrachter Fliesenlage;

Fig. 3

einen schematischen Querschnitt durch das Duschbodenelement;

Fig. 4

eine der Fig. 3 entsprechende Querschnittsdarstellung, jedoch eine zweite Ausführungsform betreffend;

Fig. 5

in einer dritten Ausführungsform eine der Fig. 3 entsprechende Querschnittsdarstellung;

Fig. 6

in perspektivischer Einzeldarstellung einen mit einem Sanitär-Oberflächenkörper haftverbundenen Sanitär-Tragkörper in einer weiteren Ausführungsform;

Fig. 7

den vergrößerten Schnitt gemäß der Linie VII-VII in Fig. 6;

Fig. 8

eine perspektivische Ansicht einer weiteren Ausführungsform mit in dem Tragkörper angeordneter Flächenheizung.

Below, the invention with reference to the accompanying drawings, which illustrates only exemplary embodiments, explained in more detail. It shows:

Fig. 1

a support body made of rigid foam in perspective view;

Fig. 2

a partially cut, perspective view of the shower floor element with applied tile layer;

Fig. 3

a schematic cross section through the shower floor element;

Fig. 4

one of the Fig. 3 corresponding cross-sectional representation, but relating to a second embodiment;

Fig. 5

in a third embodiment, one of Fig. 3 corresponding cross-sectional representation;

Fig. 6

in a perspective detailed view of an adherent to a sanitary surface body sanitary support body in another embodiment;

Fig. 7

the enlarged section along the line VII-VII in Fig. 6 ;

Fig. 8

a perspective view of another embodiment with arranged in the support body surface heating.

Shown and described is first with reference to Fig.1 a first Ausführungsfom a support body 1 made of a rigid foam, in particular of an expanded polystyrene having a rectangular, in particular square plan and a central drain 2, which is formed by a drainage, for example, as an injection molded part.

To accommodate the drainage frame of the support body 1 is provided centrally with a round in the outline opening 3.

The support body 1 has assigned to the outer peripheral edge 4 and associated with the inner, the opening 3 associated peripheral edge 5 each have an open towards the top of the support body 1 groove 6, 7. These grooves 6, 7 are formed circumferentially and serve to materially reinforce the critical connection areas of the supporting body 1, ie on the one hand in the transition region to the adjacent screed floor and on the other in the transition region to the outlet 2.

Depending on the application of the support body 1 can be dispensed with the previously described grooves 6 and / or 7. At least when higher volume weights are used. Next alternatively, metal inserts can be embedded in these grooves to further increase the edge stability.

The grooves can be omitted in particular if, as preferred, the bulk density of the carrier body forming particle foam is selected so that very high loads can be absorbed. For example, the density may be so high that an occupation with mosaic tiles, which usually have a footprint of 2.5 x 2.5 cm, is possible. This means that peak loads, transmitted only over such a tile can be absorbed without damaging the support body.

The support body 1 is coated by an adhesion-promoting layer 8. This can be rolled up, in particular rolled up by hand. It can also be sprayed on. According to the schematic representation in Fig. 2 For example, the adhesion-promoting layer 8 can also be applied by dipping the carrier body 1. When applied by dipping, a bonding layer 8 which surrounds the support body in a closed manner already results from the nature of the object.

When forming the support body 1 with prescribed grooves 6 and / or 7, these are filled by the adhesive layer 8 forming material at the same time, which in addition to the desired edge reinforcement of the support body 1 also provides a positive connection of bonding layer 8 and support body 1.

The support body 1 preferably EPS has a density of about 100 kg / m ³ up to 110 kg / m ³ . When used as intended, vertical forces do not lead to any deformation of the support body 1. Furthermore, the high density in conjunction with the water-repellent treated EPS also achieves a watertight design of the support body 1.

The desired waterproofness is further increased by appropriate formulation of the adhesion-promoting layer 8. Thus, this adhesion promoting layer 8 may be made of acrylic resin or polyurethane.

On the adhesion-promoting layer 8, a tile adhesive 9 can be applied in a conventional manner, for fixing tiles 10.

As further from the schematic cross-sectional views in the Fig. 3 to 5 To recognize, the adhesion-promoting layer 8 can only be arranged on the upper side, ie facing the tile adhesive 9 (cf. Fig. 3 ). Alternatively, adhesion-promoting layers 8 can also be applied to both opposite broad sides of the carrier body 1 (see FIG Fig. 4 ).

In the case of in particular surface-sized support bodies 1, a reinforcement in the form of an inlaid fabric or integrated fibers may be provided in the primer layer 8 or in both opposite primer layers 8 to further increase the flexural rigidity of the support body 1 or the shower floor element D thus created. The reinforcements 11 are in Fig. 5 shown schematically embedded in the bonding layers 8.

The Fig. 6 and 7 show a further embodiment. Also in this a support body 1 is provided from a rigid foam, in particular of an expanded polystyrene, with a square outline. The room-side surface 12 of the support body 1 is the central point, ie towards the center inclined, at which point the support body 1 has an opening for receiving and throughput of a non-illustrated sequence 13th

On the room-side surface 12, a sanitary surface body 15 is fixed on the support body 1. This is manufactured as a hard plastic part by deep drawing and has a corresponding to the support surface 12 extending slope to the central point, corresponding to a conventional gradient in shower trays.

The determination of the sanitary surface body 15 on the support body 1 is effected only by means of the adhesion-promoting layer 8. The latter has corresponding adhesive properties, wherein the selected adhesive based on modified silane or based on a viscoelastic polyurethane composition.

Surrounding the outer edge side of the deeply drawn surface body 15 is provided with a perpendicular downward in the direction of the support body 1 facing bead edge 16. This has a free vertical height h, which corresponds to about three times the material thickness of the surface body 15.

The peripheral side of the support body 1 facing the upper surface 12 has a step-like recess 17, with a vertical height which corresponds approximately to the free-projecting dimension of the flanged edge 16. This beading 16 covers the open-edged recess 17 such that there is a rectangular in space approximately elongated rectangular space. Here, the side surface of the flanged edge 16 terminates in a projection on the support body 1 with its side edge.

Bodenseitig the recess 17 is located in this one over the edge of the support body 1 freely projecting sealing strip 18 a. This occurs between the lower end edge edge of the beaded edge 16 and the facing bottom surface of the - recess 17 of the support body 1 laterally beyond the support body 1 also extends this is in a cross section as shown in FIG Fig. 7 elongated straight.

The sealing strip 18 is fixed by means of an insert part 19, likewise preferably made of a particle foam, which is adapted to be inserted into the cross-sectional configuration of the recess 17. This results in an approximately strip-shaped insert 19.

Insert 19 and sealing strip 18 are fixed in the recess 17 by gluing, wherein in an advantageous embodiment, the surface body 15 defining adhesive layer 8 can be used at the same time for fixing the sealing strip 18 and the insert 19. The insert 19 is surrounded on all sides by the adhesion-promoting layer 8.

The sealing tape 18 is in height, d. H. placed in the vertical positioning so that this completes taking into account a usual height of the support body 1 in the installed state surrounding screed with its surface and therefore, for example, in a tile adhesive bed without step offset is einbindbar.

Through the use of a support body 1 with a high density of, for example, 100 kg / m ³ , a shower tray element D is created, which is constructed taking into account a sufficient compressive strength and a sufficient water impermeability in manufacturing technology simple manner.

In Fig. 8 schematically is a support body 1, as it is basically described here, shown with an associated one of its flat sides provided surface heating 20. The surface heating 20 consists in detail of an electrical resistance heating wire 21 and is located in a recess 22 of the support body 1 a. In the recess 22 and an installation box 23 is added. The surface heating 20, together with the installation box 23, is covered by a grid layer, here a coarse-meshed fabric cover 24. The recess 22 is then filled in the course of further processing by means of an adhesive. This is preferably a tile adhesive 25. This results in the arrest of the surface heating total with the foam support body. In addition, the already described adhesion-promoting layer 8 is then applied in the usual way.

The electrical connections 26, 27 of the surface heating 20 are led out of an end face of the support body 1.

Claims (11)

1. Plumbing supporting body (1) such as a shower tray element (D) comprising a supporting body (1) which consists of particle foam, in particular expanded polystyrene foam (EPS), the supporting body (1) comprising an adhesive layer which is applied thereto, for example as a base for a tile adhesive or for direct adhesion to a plumbing surface body (15) located in the room, the adhesive layer (8) further being directly applied to the supporting body (1), characterised in that the adhesive layer (8) is waterproof and in that the bulk density of the supporting body (1) is greater than 60 kg/m³.
2. Plumbing supporting body (1) according to claims 1, characterised in that the plumbing surface body is bonded to the supporting body (1) only by means of the adhesive layer (8).
3. Plumbing supporting body (1) according to either claim 1 or claim 2, characterised in that the supporting body (1) has an upwardly open groove (6, 7) associated with an inner peripheral edge which is associated with an opening (3), or associated with an outer peripheral edge (4), and in that, at the same time, a groove (6, 7) is filled by the material forming the adhesive layer.
4. Plumbing supporting body (1) according to any of the preceding claims, characterised in that the adhesive layer has a reinforcement (11).
5. Plumbing supporting body (1) according to any of claims 1 to 4, characterised in that only the usage upper side and optionally the front sides of the supporting body (1) are covered by the adhesive layer (8).
6. Plumbing supporting body (1) according to any of claims 1 to 5, characterised in that adhesive layers (8) are provided on both opposing broad sides of the supporting body (1).
7. Plumbing supporting body (1) according to any of claims 1 to 5, characterised in that the supporting body (1) is completely enclosed by the adhesive layer (8).
8. Plumbing supporting body (1) according to any of the preceding claims, characterised in that the bulk density of the supporting body is 70 kg/m³ or greater.
9. Plumbing supporting body (1) according to any of the preceding claims, characterised in that the bulk density is 80 kg/m³ or greater, or in that the bulk density is 90 kg/m³ or greater.
10. Plumbing supporting body (1) according to any of claims 1 to 9, characterised in that the bulk density is approximately 100 kg/m³.
11. Plumbing supporting body (1) according to any of claims 1 to 9, characterised in that the bulk density is of up to 110 kg/m³.

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