WO2014095064A1

WO2014095064A1 - Decoupling mat for floor coverings

Info

Publication number: WO2014095064A1
Application number: PCT/EP2013/003855
Authority: WO
Inventors: Sandro Thronicke
Original assignee: Sandro Thronicke
Priority date: 2012-12-20
Filing date: 2013-12-19
Publication date: 2014-06-26
Also published as: DE102012112698A1; EP2935723B1; EP2935723A1

Abstract

The invention relates to a decoupling mat (1) for tile coverings, said mat comprising at least one layer (2), on one side (3) of which a number of well-shaped depressions (4) are provided. The depressions (4) have a base (5) that is delimited by side walls (6) and at least one projection (7) is associated with each base (5) of the depressions (4). The projection (7) has at least one wall (12) extending upwards from the base (5), at least some sections of said wall forming an angle of less than 90° with the base (5).

Description

DECOILING MAT FOR FLOORING

The invention relates to a decoupling mat for floor coverings, comprising at least one layer which is provided on one side with a number of cup-shaped recesses, wherein the recesses have a bottom which is bounded by side walls.

Such a decoupling mat is known from DE 10 2008 045 122 A1.

Floor coverings are understood to mean all coverings made of ceramic, natural stone and mineral tiles or slabs as well as wooden floors such as parquet.

Such floor coverings are laid by means of adhesive on a substrate, the floor coverings are firmly connected to the substrate after curing of the adhesive. Due to the strong bond between the floor covering and the substrate, however, existing tensions and movements in the subsoil are passed on directly to the floor covering so that cracks and breaks can occur in the floor covering. Furthermore, the fixed connection causes a direct

Sound transmission from the floor covering into the underground.

In order to overcome these disadvantages, it is known from the prior art, between floor covering and substrate a decoupling mat

to arrange. On the one hand, this prevents the transmission of stresses from the substrate into the floor covering and, on the other hand, the decoupling mat lowers the direct transmission of sound from the floor covering into the substrate. To produce a floor covering, first the decoupling mat is inserted into a

Adhesive layer laid and so firmly connected to the substrate. Adhesive, for example tile adhesive is then applied to the top of the decoupling mat on which the tiles or plates are arranged.

CONFIRMATION COPY This results in the difficulty that due to the cup-shaped formation of the wells no firm connection of the mortar to the decoupling mat is possible, which complicates the structure of the tile composite. The invention has for its object to provide a decoupling mat for floor coverings, which allows a simple and secure attachment of the floor coverings on the decoupling mat.

This object is achieved with the features of claim 1. In advantageous embodiments, the dependent claims relate.

To solve the problem, the bottoms of the wells are each assigned at least one elevation wherein the survey has at least one wall which protrudes from the ground and which at least partially encloses an angle of less than 90 ° to the ground. The elevations extend from the bottom out of the recess, wherein a variety of shapes for the surveys are conceivable. The elevations are at least partially inclined, being viewed from above under the inclined elevation a

Undercut results. In an alternative embodiment, it is conceivable that the elevation is mushroom-shaped and has a cross-sectional widening at the free end. Also in this embodiment, as viewed from above below the survey results in an undercut. The depressions are cup-shaped and therefore have no undercuts in contrast to the surveys. However, the surveys according to the invention, which are associated with the bottoms of the depressions, form an obstacle within and in combination with other depressions, so that the mortar better adheres to the depressions, although these on the

Side walls have no undercut. This improves on the one hand, the adhesive bond between the floor covering, adhesive and decoupling mat and also by the improved adhesion of the adhesive in the with the

Elevations provided depressions facilitates the laying work.

It is conceivable that the surveys dominate the wells. In this case, the supernatant of the surveys can be chosen so that there is a distance between the upper edge of the ribs and the upper edge of the survey, which corresponds to the desired thickness of the adhesive applied to the decoupling mat. This results in the advantage that the adhesive after application to the decoupling mat along the projecting surveys can be deducted without additional tools with a trowel, so that always sets the desired adhesive strength. In this context, it is particularly advantageous if the depressions are covered by a flat material. The sheet material is preferably a nonwoven or a mesh fabric. The sheet material improves the adhesion of the adhesive and thus the bond between the decoupling mat and flooring. The sheet material can rest on the surveys. Alternatively, the sheet material may be provided with openings through which protrude the protrusions. In this case, the sheet material rests on the ribs.

The recesses may be circular or angular, the layer being so

is formed so that the recesses introduced on one side form elevations on the other side of the layer. Preferably, the recesses are rectangular, since this geometry is particularly easy to produce, thereby enabling the production of large depressions.

The depressions can adjoin one another directly on their side walls. This possibility results in angular, in particular triangular, rectangular or hexagonal depressions. This forms between the

Wells formed only by the side walls ribs. In this case, it is particularly advantageous that no webs arise due to the direct abutment. Rather, the top edge is formed by line-shaped ribs so that most of the adhesive is absorbed by the indentations. The side walls may each include an angle of greater than 90 ° to the floor. This results in cup-shaped depressions without

Undercuts. It is advantageous that they can be filled easily and completely with adhesive. The survey can be centered in each case in the ground. These

Design is particularly easy to produce. In addition, comparable behavior and a comparable result in each direction

Processability of the adhesive. The height of the elevations may be selected such that they are flush with the edge of the side walls facing away from the floor. Thus, the upper edge forms the elevation a level with the top edges of the sidewalls and ribs.

As a result, the elevations and the ribs are equally loaded when applying the adhesive, so that damage to the surveys can be avoided.

The survey may be formed by bent portions of the soil. To produce the sections are punched out of the ground and

bent, where the section can be heated during bending, so that they are permanently and stably folded after cooling. The sections are bent by more than 90 ° from the ground, so that they project obliquely from the ground and are inclined in the direction of the ribs. These surveys are particularly easy to produce, with no additional material is required. In this embodiment, an opening results in the bottom. The elevations may be pyramid-shaped, with the section with the smallest cross-sectional area facing the floor. In this embodiment, each elevation has at least three, preferably four, walls, and the walls of these elevations subtend an angle to the bottom of less than 90 °, thereby extending relative to the side surfaces of the well and

especially with respect to pyramidal elevations of other wells undercuts arise. However, these are relatively small, so that these undercuts can still be easily filled with mortar. In addition, the undercuts improve the fixation of the adhesive on the entire decoupling mat. This is especially true against the background of only a small footprint having webs.

For each well several surveys may be provided. At this

Design result in small spaces, which also cause a good fixation of the mortar.

An adhesive layer may be arranged on at least one side of the layer.

The adhesive layer is preferably arranged on the side of the layer facing away from the depressions. The adhesive layer may consist of a liquid or pasty adhesive which is applied to the layer or the

Adhesive layer can be arranged on a film, which in turn is adhered to the layer. The adhesive of the adhesive layer is preferably made of an acrylate-based adhesive. Through the adhesive layer, the decoupling mat can directly applied to a substrate and fixed there. The additional mortar bed for fixing the decoupling mat on the substrate can be omitted. As a result, the decoupling mat can be placed on the ground very quickly and easily. The adhesive layer may be formed as a further layer and be formed over the entire surface. In this embodiment, the adhesive layer preferably has a reinforcement formed by embedded in the adhesive layer, preferably in the form of a grid. In another embodiment, the adhesive layer is arranged exclusively in the region of the depressions. To protect the adhesive layer during transport, this may be covered with a film.

On at least one side of the layer, a mesh fabric may be arranged. The mesh fabric is preferably disposed on the side of the layer which the

Wells are assigned. In this case, the mesh fabric is particularly preferably on the surveys and is connected to these. In this case, the mesh fabric is preferably firmly connected to the decoupling mat. The compound can be made by an additional adhesive bond or by a direct cohesive integration of the mesh fabric in the matrix of the layer. By the

Grid fabric improves the connection of the decoupling mat to the

Tile coating and the transmission of stresses in both directions. As an alternative to the mesh fabric can also be a nonwoven fabric or a combination of

Be provided mesh fabric and nonwoven fabric.

The layer may have openings at least in sections. The openings may be formed by slots or other openings. These are

preferably arranged near the ground in the side walls or in the ground itself. The openings allow drainage through the decoupling mat, so that use of the decoupling mat according to the invention in the

Outdoor area is possible. In another embodiment, filling material is introduced into the recesses. The filler material may include bonded or unbound sand or metal particles. In order to prevent the material trickles out of the wells, the wells are covered by a cover formed from a close-meshed mesh fabric or a nonwoven or a combination of mesh and nonwoven fabric. The mesh fabric or the fleece is preferably bonded to the layer via an adhesive layer. It is conceivable that the cover covering the bumps or that the bumps protrude through the cover.

Some embodiments of the decoupling mat according to the invention are explained below with reference to the figures. These show, each schematically

1 shows a decoupling mat with pyramid-shaped centered elevations.

FIG. 2 shows a decoupling mat with elevations formed from the bottom; FIG.

3 a decoupling mat with a plurality of elevations;

4 a decoupling mat with a mesh fabric and an adhesive layer;

5 a decoupling mat with elevations which project beyond the depressions;

Hg. 6 a decoupling mat with mesh fabric;

7 shows a decoupling mat with a continuous adhesive layer on the back side;

8 shows a floor structure with tile covering and decoupling mat;

9 shows a decoupling mat with openings in the layer.

The figures show a decoupling mat 1 for floor coverings. The

Decoupling mat is located in a flooring composite between the substrate and the flooring, the flooring in a on the

Decoupling mat applied adhesive bed, for example, a tile adhesive is introduced. Floor coverings in the context of the invention are all coverings made of ceramic, natural stone and mineral tiles or slabs and wooden floors. The decoupling mat 1 according to the invention is also suitable in conjunction with plaster or mineral casting compounds, which may be water-permeable or impermeable to water.

The decoupling mat 1 has a layer 2, which consists of plastic, preferably a thermoplastic material such as polypropylene and is therefore simple and inexpensive to produce. The ready to lay

Decoupling mat 1 can be present as web material in roll form or as a sheet product in predetermined sizes.

The layer 2 is provided on one side 3 with a number of cup-shaped depressions 4, wherein the depressions 4 have a bottom 5 which is bounded by side walls 6. The depressions 4 are rectangular and arranged so that the depressions 4 on the side walls 6 directly to each other adjoin. This results in no webs with horizontal sections between the wells 4, but only line-shaped ribs. The side walls 6 each include an angle greater than 90 ° to the bottom 5. In this embodiment, the angle is 135 °. As a result, the depressions seen from above are free of undercuts.

The bottoms 5 of the recesses 4 are each assigned at least one elevation 7, which is centered in the bottom 5 is arranged. The height of the elevations 7 is selected in a first embodiment such that they are flush with the bottom 5 facing away from the edge of the side walls 6. In another embodiment, the elevations 7 project beyond the side walls 6.

In order to produce a floor covering connected to the substrate, the decoupling mat is first placed in a layer of adhesive which is placed on the floor

Substrate is applied. Subsequently, on top of the

Decoupling mat applied a further adhesive layer on which the

Flooring is arranged. Does the decoupling mat 1 on the bottom 9 an adhesive layer 10, the additional and separately applied

Adhesive layer between substrate and decoupling mat 1 omitted.

1 shows a first embodiment of the decoupling mat 1. The elevations are cuboid and are introduced by deep drawing in the bottom 5 of the layer 2. In this case, the elevations 7 are formed pyramid-shaped, wherein the portion with the smallest cross-sectional area facing the bottom 5. These elevations 7 are also produced by deep drawing.

Figure 2 shows a second embodiment of the decoupling mat 1 in which the

Elevations 7 are formed by bent portions 8 of the bottom 5. To produce these elevations 7, the sections 8 are first punched out of the ground, then bent by 90 ° and fixed by thermal treatment.

FIG. 3 shows a further embodiment of the decoupling mat 1 in each case

Well 4 more surveys 7 are provided. In this embodiment, four elevations 7 are provided with triangular base per well 4. FIG. 4 shows a decoupling mat 1 with elevations 7 according to one of the preceding figures. The layer 2 of the recesses 4 facing side 3 is provided with a mesh fabric 11. The mesh fabric 11 is made of glass fibers and is adhesively bonded by means of an adhesive with the layer 2, in particular with the elevations 7. On the opposite side 9 of the layer 2 is a

Adhesive layer 10 is arranged. The adhesive layer 10 comprises an acrylate adhesive.

FIG. 5 shows a decoupling mat 1 with elevations 7 which project beyond the depressions 4 and thus the upper edge of the side walls 6. On the upper side of the layer 2, a mesh fabric 11 or alternatively a fleece cover is provided, wherein the elevations 7 protrude through the mesh fabric 1 therethrough. On the opposite side 9 of the layer 2, an adhesive layer 10 is arranged. The adhesive layer comprises an acrylate adhesive. FIG. 6 shows a decoupling mat 1 with elevations 7 which project beyond the depressions 4 and thus the upper edge of the side walls 6. On the upper side of the layer 2, a mesh fabric 11 or alternatively a fleece cover is provided, wherein the mesh fabric 11 rests on the elevations 7. On the opposite side 9 of the layer 2, an adhesive layer 10 is arranged. The adhesive layer 10 comprises an acrylate adhesive.

Figure 7 shows an embodiment according to Figure 4, wherein the adhesive layer 10 is formed throughout in this embodiment. The adhesive layer 10 has a

Fiber reinforcement in the form of a mesh on.

Figure 8 shows a floor structure with a tile covering 1 as a conclusion. In this figure, it can be seen that the tile adhesive 15, which is applied to the upper side of the layer 2, fills the recesses 4, wherein in conjunction with a plurality of recesses 4 and their elevations 7 according to the invention a fixed positive connection of the tile adhesive 15 to the decoupling mat 1 takes place.

FIG. 9 shows a further embodiment of the decoupling mat, the layer 2 being provided with openings 13 in this embodiment. The openings 13 are arranged in the side walls 6 in the region of the bottom 5.

Claims

Patent claims

Decoupling mat (1) for tile coverings, comprising at least one layer

(2), which on one side

(3) is provided with a number of cup-shaped depressions (4), the depressions (4) having a bottom (5) which is delimited by side walls (6), characterized in that the bottoms (5) of the depressions (4) at least one elevation (7) is assigned in each case, the elevation (7) having at least one wall which projects from the floor (5) and which, at least in sections, forms an angle of less than 90° to the floor (5).

Decoupling mat according to claim 1, characterized in that the depressions

(4) on whose side walls (6) directly adjoin one another.

Decoupling mat according to claim 1 or 2, characterized in that the side walls (6) each enclose an angle of greater than 90° to the floor (5).

Decoupling mat according to claim 1 or 3, characterized in that the elevation (7) is arranged centered in the floor (5).

Decoupling mat according to one of claims 1 to 4, characterized

characterized in that the height of the elevations (7) is chosen such that they are flush with the floor

(5) opposite edge of the side walls

(6) complete.

Decoupling mat according to one of claims 1 to 5, characterized

characterized in that the elevation (7) is formed by bent sections (8) of the base (5).

Decoupling mat according to one of claims 1 to 6, characterized

marked that the surveys

(7) are pyramid-shaped, with the section with the smallest cross-sectional area facing the bottom (5).

8. Decoupling mat according to one of claims 1 to 7, thereby

characterized in that several elevations (7) are provided for each depression (4).

9. Decoupling mat according to one of claims 1 to 8, thereby

characterized in that an adhesive layer (10) is arranged on at least one further side (9) of the layer (2).

10. Decoupling mat according to one of claims 1 to 9, characterized

characterized in that a mesh fabric (11) is arranged on at least one side (3, 9) of the layer (2).

11. Decoupling mat according to one of claims 1 to 10, thereby

characterized in that a filling material is introduced into the depressions (4), the depressions being covered by a flat material (11).