EP1378197A1 - Basement for a shower tray - Google Patents

Abstract

A support system for a floor mounted shower tray has a grid assembled from strips of hard plastic foam covered by a toughened plastic sheet into which is cut a hole for the drain. The strips are cut from a foam sheet coated on both sides with fibre reinforcing layers and are shaped to fit over each other to form a self supporting grid. The top of the grid is shaped to provide a drainage slope towards the drain hole, with the outer strips having a horizontal surface. Plastic inserts and a drain adaptor complete the drain hole assembly.

Description

The invention relates to a deployable on a substrate Substructure for a drainage shower tray, in particular a shower tray for the floor level Installation.

From DE 38 09 068 A1 is a substructure for a with a drain provided shower tray known, in which a massive Plastic support, e.g. polyurethane foam, used comes. On which a preformed surface having Carrier is placed a plate covering. A disadvantage of The known substructure is that the massive carrier is light Can get distortions and also material-consuming is. Furthermore, a correction of the process during the Installation of the support and the shower tray very difficult or not feasible at all.

From DE 198 47 910 A1 discloses a further substructure for a Shower tray known, which is also a massive Carrier made of plastic or plastic foam, in which the shower tray can be used. The preformed Surface can be covered with plates. To the To better install drainpipes, is the substructure divided in two. In the first, put on the ground Half of the substructure, the drain is pre-installed. In in the second half, the shower tray can be pre-installed. The halves are then placed on top of each other, with leadership and / or latching elements are provided to the halves fit together accurately. The disadvantage is Again, that it is easy to dislocations in the massive carrier can come if the insurgency level is not plan is. In addition, for the production of massive substructures again a large volume of material needed.

The object of the invention is a substructure of the aforementioned To design a style that has a long life, is to produce with a low cost of materials and with which shower tray structures can be easily produced.

• aus einem aus Hartschaumstoff-Leisten gebildeten Gitterwerk mit einer planen oder konkaven, von den Oberseiten der Hartschaumstoff-Leisten aufgespannten Oberfläche
• und einer Zwischenplatte aus armierten Hartschaumstoff, die mit einem Durchlass im Bereich des bei der Duschtasse vorhandenen Ablaufs versehen ist, die auf das Gitterwerk aufgelegt ist und auf die die Duschtasse aufsetzbar ist,

wobei die Flächenausdehnung des Gitterwerks und der Zwischenplatte der Flächenausdehnung und Peripherie der Duschtasse entspricht. This object is achieved by a substructure which can be placed on a base, which consists of two superimposed elements, namely

• from a lattice work formed from hard foam strips with a plane or concave surface spanned by the upper sides of the rigid foam strips
• and an intermediate plate of reinforced rigid foam, which is provided with a passage in the region of the existing at the shower tray expiration, which is placed on the latticework and on which the shower tray is placed,

wherein the surface area of the gridwork and the intermediate plate corresponds to the surface area and periphery of the shower tray.

The latticework can be polygonal in plan view on its top, for example, trapezoidal or rectangular his. It consists of a surrounding frame and middle struts that are perpendicular, or parallel to the respective Frame side run. It is also conceivable, the middle Struts, i. Hard foam strips to arrange diagonally.

It is advantageous for receiving a drain pot of the Shower tray to provide a reinforced central area, the for example, by two intersecting rigid foam-strip pairs can be formed.

The rigid foam strips forming the latticework can together on so-called cross overlapping, on groove and Be connected spring or on impact. Preferably, the Cross lapping used in all rigid foam strips of the lattice work the same proportions and the same Form have, if a square design of the

Shower tray has been selected.

Preferably, the rigid foam strips are from both sides made of fiberglass reinforced foam boards, so that they have a rectangular cross-section, in which the two opposite sides with the reinforcement are reinforced. The plastic reinforcement gives the Lattice work and thus the substructure a high stability, the even by laying on the latticework of the same plastic-reinforced intermediate plate is increased.

The plastic reinforcement can be made of a plastic mortar layer exist in which a fiberglass fabric or fleece is embedded. As tissue is preferably a For example, glass filament fabric of mesh size 1.0 cm.

Of particular advantage is that as a very lightweight support structure executed lattice material saving a few Hard foam strips assembled in a short time can be and that the intermediate plate and the hard foam strips cut from the same plate material (semi-finished) can be. Such semi-finished products are from the Applicant offered and distributed.

Another advantage is that an accurate placement of the Expiration can be omitted, since its location by simple milling the corresponding rigid foam strip with tools can be corrected.

The substructure according to the invention is in particular for a floor-level Installation suitable for a comfortable, stepless Entering the shower cell allows. At one over the underground protruding floor structure with shower tray is common a corresponding walling or tiling around the provided socket.

Fig. 1

ein Gitterwerk in Draufsicht;

Fig. 2

einen Schnitt A-A gemäß Fig. 1;

Fig. 3

einen Schnitt B-B gemäß Fig., 2;

Fig. 4

Montage des Gitterwerkes gemäß Fig. 1, in einer perspektivischen Ansicht;

Fig. 5

einen kompletten Unterbau in einer Explosions-Darstellung, perspektivisch gesehen;

Fig. 6

einen bodengleich eingebauten Unterbau mit Plattenbelag, in einer schematischen Seitensicht;

Figuren 7 u. 8

einen Schnitt C-C gemäß Fig. 5; und

Fig. 9

den Unterbau gemäß Fig. 6 in Draufsicht.

An embodiment of the invention is described with reference to the drawing, whose figures show in detail:

Fig. 1

a latticework in plan view;

Fig. 2

a section AA of FIG. 1;

Fig. 3

a section BB of FIG., 2;

Fig. 4

Assembly of the gridwork of Figure 1, in a perspective view.

Fig. 5

a complete substructure in an exploded view, seen in perspective;

Fig. 6

a ground level built substructure with plate covering, in a schematic side view;

FIGS. 7 and 8th

a section CC of FIG. 5; and

Fig. 9

the substructure of FIG. 6 in plan view.

In Fig. 1, a supporting gridwork 1 is shown, which Part of a substructure shown in Figures 5, 6 and 9 100 for a shower tray 50 is. The latticework 1 exists from eight equal rigid foam strips 2.1 ..... 2.8 (cf. Fig. 2), a circumferential, square frame 20 and two middle, intersecting hard foam strips pairs 2.5, 2.6; 2.7, 2.8 form. These rigid foam last pairs in turn form a reinforced middle area 15 for receiving a drain pot 30 (see Fig. 5).

All rigid foam strips 2.1 ...... 2.8 are on each other Cross lapping connected, as shown in FIG. 4 can be seen is.

For this purpose, each hard foam strip 2.1 ..... 2.8 two each at their ends 6.1; 6.2 incorporated, to each other mirror-inverted recesses 7.1, 7.2, and two more, between the ends 6.1; 6.2 lying Recesses 9.1, 9.2 on. All recesses 7.1, 7.2; 9.1 9.2 have a depth T (see Figures 2 and 3), the one half height H of the hard foam strip corresponds, so that linked to cross-overlapping Hard foam strips 2.1 ..... 2.8 are flush with each other. The overlays are covered with a moisture-resistant silicone or polyurethane adhesive glued or snug fit laid. In Fig. 3 is a cross section Q of the rigid foam strip 2.1 ...... 2.8, which has a foam core 4 and to remove two lateral plastic reinforcements 12.1, 12.2 are. The plastic reinforcements 12.1, 12.2 are by applying a thin layer of plastic mortar each time on the flat sides of the foam board and through Embedded in this layer of a glass fiber fabric emerged.

Such plastic-reinforced rigid foam panels of different Thicknesses are produced by WEDI GmbH, Emsdetten, produced.

By cutting the foam board semi-finished arise Hard foam strips 2.1 ...... 2.8 of rectangular cross-section, where still the recesses 7.1, 7.2; 9.1, 9.2 are milled. To build a stable gridwork 1 are Hard foam strips 2.1 ...... 2.8 of a height H = 100 mm and a width B = 50 mm. The foam core 4 is made of polystyrene foam.

The hard foam strips form 2.1 ..... 2.8 of the latticework a flat surface 8 (see Figures 6 and 7), to which a 40 mm thick intermediate plate 3 is placed and also with Glued moisture-resistant silicone or polyurethane adhesive is. The made of a plastic-reinforced polystyrene foam on both sides existing intermediate plate 3 is preformed, i.e. it has a slightly concave upper side 17.2 on, which corresponds to the shower tray 50. In contrast, her is the Plan surface 8 of the lattice facing bottom 17.1 plan. As a result, the thickness of the intermediate plate 3 in the direction of its central passage 16 always reduced. Such an intermediate plate can, for example by compacting the hard foam with a corresponding stamp during plate making or by CNC milling or by cutting by means of a rotating or hot wire (filament) are made.

In another embodiment (see Fig. 8), the Intermediate plate 3 a the lattice work facing, curved Bottom 17.1, which leads to a concave surface 8 of the Lattice 1 is compatible. The concave surface 8 of the Lattice work 1 can be achieved by simply cutting the medium hard foam strips each along an arc-like extending line, which has a curved upper edge 23 defined be achieved.

In both cases, they form the peripheral frame 20 Hard foam strips 2.1, 2.2, 2.3, 2.4 respectively a straight top edge 13.

FIG. 6 shows a schematic view of a substrate 10 a cuboid bottomed substructure 100.

The substrate 10 is leveled and cleaned so that the previously glued latticework 1 with its flat bottom placed horizontally on the ground 10 and glued with a silicone or polyurethane adhesive can. The drain pot 30 is with its collar on the in Center area 15 milled recesses 21 laid there glued and a drain pipe 11 connected. After that will glued to the latticework 1, the intermediate plate 3 and after curing of the adhesive, set up a shower tray. The prefabricated shower tray can be replaced by a tiled surface 14 (see Fig. 9) are replaced. In the course 5 is about a seal 22 a chromed Bodeneinlauf cover 18 used.

LIST OF REFERENCE NUMBERS

1

latticework

2.1 ...... 2.8

Rigid foam strip

3

intermediate plate

4

Foam core

5

procedure

6.1, 6.2

The End

7.1, 7.2

recess

8th

surface

9.1, 9.2

recess

10

underground

11

drain pipe

12.1

plastic reinforcement

12.2

plastic reinforcement

13

edge

14

tiling

15

the central region

16

passage

17.1

Page (v. 3)

17.2

Page (v. 3)

18

Floor drain-cover

19

ring

20

frame

21

recess

22

poetry

23

edge

30

drain pot

50

shower tray

100

substructure

B

width

Q

cross-section

H

height

T

depth

Claims (12)

Substructure (100) which can be erected on a base (10) for a shower tray provided with a drain (5), in particular a shower tray for floor-level installation, the substructure (100) consisting of two superimposed elements, namely from a lattice work (1) formed from hard foam strips (2.1 ..... 2.8) with a plane or concave surface (8) spanned by the upper sides of the rigid foam strips (2.1 ...... 2.8), and an intermediate plate (3) made of reinforced rigid foam, which is provided with a passage (16) in the region of the existing at the shower tray expiration, which is placed on the latticework (1) and on which the shower tray is placed, and wherein the surface area of the lattice work (1) and the intermediate plate (3) corresponds to the surface area and periphery of the shower tray. Substructure according to claim 1, characterized in that the lattice work (1) in plan view on its upper side is polygonal, preferably rectangular. Substructure according to claim 1 and 2, characterized in that the rigid foam strips (2.1 ..... 2.8) of the latticework (1) form a peripheral frame (20) and a reinforced central region (15) for receiving a drain pot (30) , which central region (15) is formed by two intersecting rigid foam-foam pairs (2.5, 2.6, 2.7, 2.8). Substructure according to one of claims 1 to 3, characterized in that the rigid foam strips (2.1 ...... 2.8) of the latticework (1) in side view in each case two at their ends (6.1, 6.2) incorporated mutually mirror-inverted recesses (7.1, 7.2), as well as at least one further, between the ends (6.1, 6.2) lying recess (9.1, 9.2), which allow the rigid foam strips (2.1 ...... 2.8) with each other on Kreuzüberblattung connect. Substructure according to one of claims 1 to 4, characterized in that all hard foam strips (2 .1 ...... 2.8) of the latticework (1) have the same dimensions and the same shape. Substructure according to claims 1 to 3, characterized in that the rigid foam strips (2.1 ..... 2.8) of the latticework (1) are connected to each other on tongue and groove. Substructure according to claims 1 to 3, characterized in that the hard foam strips (2.1 ...... 2.8) of the latticework (1) are connected to each other on shock. Substructure according to one of claims 1 to 7, characterized in that the surrounding frame (20) forming rigid foam strips (2.1, 2.2, 2.3, 2.4) each have a straight edge (13) and the middle, within the peripheral frame (20 ), each having a curved, in the assembled state with the top of the lattice work covering edge (23). Substructure according to one of the preceding claims, characterized in that the intermediate plate (3) on its side facing the lattice work (17.1) is flat and on one of the underside (17.1) facing away from the top (17.2) is concave. Substructure according to one of the preceding claims, characterized in that the rigid foam strips (2.1 ..... 2.8) are reinforced with glass fibers, for example. Substructure according to one of the preceding claims, characterized in that the rigid foam strips and the intermediate plate (3) from the same plate material (semi-finished) are cut. Substructure according to one of the preceding claims, characterized in that in the intermediate plate (3) a contoured ring (19) is installed, which - in the assembled state - receives parts of the drain (5) with siphon.

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