EP4177416A1 - Decoupling mat and floor structure with such decoupling mat - Google Patents

Abstract

The invention relates to a decoupling mat (1) with a continuous plastic layer (2) produced, e.g ) at the same time form groove-like recesses (5) on a second broad side (B₂) opposite the first broad side (B₁). For a solution that is advantageous in terms of use, the protrusions (3) are limited in their longitudinal extension (1) by sections (9) of reduced height (h') and/or width (c'), which are also form limited partial areas (10) of smaller depth (s') and/or width (d'). The invention also relates to a floor structure, particularly in a building, with a decoupling mat (1).

Description

field of technology

The invention relates to a decoupling mat according to the features of the preamble of claim 1 and a floor structure according to claim 15.

State of the art

Decoupling mats of the type in question are, for example, from DE 37 01414 C2 and the DE 105 41 547 A1 known. Such decoupling mats, which are also referred to as carrier mats, are also used in particular for laying ceramic coverings, such as preferably tiles, using the thin-bed method.

From the WO 91/10782 A1 a decoupling mat is known in which truncated pyramid-like formations with a square outline are formed. A comparable decoupling mat is also from the WO 93/01356 A1 known. From the EP 3128103 A1 a decoupling mat is known in which the formations have a circular outline.

From the WO 2015/161888 A1 a decoupling mat is known in various embodiments. In some of the embodiments, square formations are provided, which are each connected to one another by second formations of lower height and are arranged overall in a square grid, so that, including the second formations, there are a large number of circumferentially limited surfaces in a basic plane of the decoupling mat results. In a further embodiment, only one form of formation is provided, this in a bone-like outline.

Summary of the Invention

Proceeding from the last-mentioned prior art, the invention is concerned with the task of specifying an advantageous decoupling mat with which a further advantageous floor structure can be achieved.

This object is achieved with the subject matter of claim 1, which is based on the fact that the first formations are formed in an elongated rib-like manner, that a dimension of a longitudinal extension corresponds to 3 times or more the width extension and that the formations or the recesses are transverse to their Longitudinal extension are arranged offset to one another.

Claim 15 specifies an advantageous floor structure using the decoupling mat, with the first broad side forming an underside of the decoupling mat.

As a result of the proposed design of the decoupling mat, there are limited shapes both in terms of their longitudinal extension and in terms of their width extension viewed transversely thereto, with the extent of the longitudinal extension corresponding to three times or more the width extension, more preferably five to ten times, possibly up to up to twenty times.

The sections of reduced height delimiting a respective formation in the longitudinal extent at the ends can have a height which is, for example, 0.8 times or less, further for example 0.5 times or less, up to, for example, 0.1 times the height of the formation viewed in the same direction. In this case, the height can in each case be plotted in a direction perpendicular to the longitudinal extension and also perpendicular to the width extension of the formation.

In particular, as a result of the preferred foil-like configuration of the plastic layer as a result of production using the deep-drawing process, the material thickness of the plastic layer provided with the formations or recesses can remain at least approximately the same. This can also result in the sections of reduced height in the area of the second broad side being assigned sub-areas delimiting the recesses that are each formed in the longitudinal extent of less depth and/or width, with the dimensional ratio in particular of the lesser depth of the sub-area to the depth of the recess preferably being the same Ratio of the reduced height of the section to the height of a formation can essentially correspond.

In such an embodiment, the first broad side can preferably be the underside of the isolating mat in the usage position, so that the protrusions can be aligned, for example, to face the unfinished floor or a screed layer. The decoupling mat and the floor structure finally provided over it can be supported accordingly via the protrusions, for example on the unfinished floor.

The formation of individual formations that do not extend over the entire length of the plastic layer in a longitudinal direction results in a favorable adaptation to the bearing surface facing the plastic layer or the decoupling mat, for example through improved adaptation to minor unevenness in the bearing surface. In addition, due to the proposed configuration, in particular the plastic layer result in overall improved handling when laying such a decoupling mat.

Furthermore, the decoupling mat designed in this way can be available as rolled goods for transport and, if necessary, also for processing. As is also preferred, the geometric rolling axis can be aligned in the longitudinal extension of the protrusions.

According to one possible embodiment, the formations can transition transversely to their longitudinal extent on both sides into a continuous channel with respect to all formations formed one behind the other in their longitudinal extent, which channel has a constant depth over its length. The essentially continuous channel thus separates two rows of formations running parallel to one another and arranged directly next to one another transversely to the longitudinal extension, with cross connections being produced in the area of the sections of reduced height to limit the length of the formations between the channels running altogether parallel to one another.

The decoupling mat can be used not only inside buildings, but also outside of buildings, for example in a floor structure for balconies or terraces.

This can also result in a floor structure in the usage position in which, facing the support surface for the uncoupling mat, between the support surface and the uncoupling mat there is a continuous channel system both in the longitudinal direction and in a direction transverse thereto, this in particular as a result of an overall partial support of the uncoupling mat about the length-limited formations. The resulting hollow structure can over the entire Form a surface extending system of interconnected vapor pressure equalization channels.

As is also preferred, each channel can have a constant depth over its entire length, with the relevant dimension referring to an extension perpendicular to a plane touching the formations in their highest extent, for example in the case of a cross-sectional barrel-like formation in the area of the zenith . In the installation situation, this level can be the support surface facing the protrusions, for example of the unfinished floor.

With regard to the second broad side pointing upwards in the installed situation, a channel can simultaneously form a continuous wall with regard to all recesses formed one behind the other in its longitudinal extent, which has a constant height over its length. The wall can laterally delimit the projections and recesses arranged one behind the other in the longitudinal extension. The height of the wall can refer to a plane that touches the walls of the plastic layer in the area of its highest height and does not penetrate the walls, whereby the height dimension can be measured perpendicularly to this plane up to a parallel plane in the area of the greatest depth of the recesses.

The formations or the recesses are arranged offset to one another transversely to their longitudinal extension. This can further result, as is also preferred, in a corresponding displacement of the sections of reduced height and/or width or of the partial areas of lesser depth and/or width.

Thus, in the longitudinal direction, the channels can each extend in a straight line, while the transverse connection of the channels, including channel sections, can run, for example, in a meandering shape overall.

According to a further preferred embodiment, a section or a partial area can be arranged approximately in the middle with respect to a longitudinal extent of a formation or a recess. This can further result in an arrangement of these formations or recesses in the assembly if the formations or recesses are preferably of the same length.

The sections or partial areas can also be arranged along a geometric line running perpendicularly to a longitudinal direction, viewed transversely to the longitudinal extension of the formations or recesses.

With regard to all channels, a jointly continuous flat geometric surface can be created, which extends below the greatest height of the formations and above the sections of reduced height without the formations penetrating, whereby the respective channel results in partial surfaces and connecting surfaces in the area of the reduced sections Height. Accordingly, a geometric surface can result whose elongated continuous surface sections are connected to one another in the area of the recesses by transverse partial surfaces and connecting surfaces formed by these partial surfaces, so that overall a latticed geometric surface can result in this regard.

Also, with respect to two directly opposite walls, there can only be one continuous flat geometric top surface create, which is separate from an adjacent top surface and without penetrating the walls runs below the greatest height of the walls, resulting in the respective recess associated sections and connecting sections in the region of sections of lesser depth. A large number, preferably corresponding to the number of recesses, of geometric cover surfaces can thus result, which are arranged one behind the other in the longitudinal extension and can be connected in a chain-like manner via partial sections each assigned to a recess, which can form connecting sections overall.

The decoupling mat can also be covered with a fleece layer on its first and/or second broad side. The non-woven layer can be connected to the plastic layer, for example adhesively bonded or laminated on.

Furthermore, one or both nonwoven layers can be arranged contour-adapted to the formations and/or the recesses, so that, with reference to a view of one of the broad sides, the above-described geometric formations or recesses, as well as partial areas of smaller Can result in depth and/or width or sections of reduced height and/or width.

Alternatively, one fleece layer, but possibly also both fleece layers, if provided, can be arranged in a stretched orientation, correspondingly aligned approximately in one plane. Here, a punctiform or line-like fixing of the fleece layer can be present, for example in the area of the highest extension of the formations or further, for example, in the area of the highest extension of the walls.

In the case of an arrangement of a fleece layer both on the first and on the second broad side, these fleece layers can be designed in the same way, possibly with same material thickness. In this regard, different fleece layers can also be provided with regard to the material and/or different with regard to the material thickness.

The ranges or value ranges or multiple ranges specified above and below also include all intermediate values with regard to the disclosure, in particular in steps of 1/10 of the respective dimension, ie possibly also dimensionless. For example, the specification of 0.8 times or less also includes the disclosure of 0.7 times or less, 0.9 times or less, etc., the disclosure of 0.5 to 1 mm also includes the disclosure of 0.6 to 1 mm, 0.5 to 0.9 mm, 0.6 to 0.9 mm, etc., the revelation from 1.5 to 4 times, also the revelation from 1.6 to 4 times, 1 .5 to 3.9 times, 1.6 to 3.9 times, etc.. This disclosure can be used on the one hand to limit a specified range limit from below and/or above, but alternatively or additionally to disclose one or more singular Values from a given range are used.

Brief description of the drawings

Fig. 1

in perspektivischer Darstellung eine Kunststofflage einer Entkopplungsmatte mit Blick auf eine erste Breitseite;

Fig. 2

die Draufsicht gemäß Pfeil II in Fig. 1;

Fig. 3

den vergrößerten Schnitt gemäß der Linie III - III in Fig. 2;

Fig. 4

den vergrößerten Schnitt gemäß der Linie IV - IV in Fig. 2;

Fig. 5

den Schnitt gemäß der Linie IV - IV in Fig. 3;

Fig. 6

in einer Ausschnittvergrößerung eine schematische, perspektivische Schnittdarstellung entlang der Ebene E in Fig. 3, mit zur Verdeutlichung der Ausgestaltung angelegten geometrischen Ebene E und einer hieraus resultierenden projizierten geometrischen Fläche F;

Fig. 7

in einer Ausschnittvergrößerung eine schematische, perspektivische Schnittdarstellung entlang der Ebene E' in Figur 3, mit zur Erläuterung der Ausgestaltung der Kunststofflage angelegten geometrischen Ebene E' und hieraus in Projektion sich ergebende geometrische Deckflächen D;

Fig. 8

eine Schnittdarstellung gemäß Fig. 3, jedoch bezogen auf einen Bodenaufbau unter Nutzung einer Entkopplungsmatte gemäß Fig. 1;

Fig. 9

den Schnitt gemäß der Linie IX - IX in Fig. 8;

Fig. 10

eine der Fig. 8 entsprechende Darstellung, jedoch eine zweite Ausführungsform betreffend;

Fig. 11

eine weitere der Fig. 8 entsprechende Darstellung, betreffend eine dritte Ausführungsform.

The invention is described below with reference to the attached drawing, which, however, only shows exemplary embodiments. A part that is only explained in relation to one of the exemplary embodiments and is not replaced by another part in a further exemplary embodiment due to the special feature highlighted there is thus also described as a possible existing part for this further exemplary embodiment. The drawing shows:

1

a perspective view of a plastic layer of a decoupling mat with a view of a first broad side;

2

the plan view according to arrow II in 1 ;

3

the enlarged section according to the line III - III in 2 ;

4

the enlarged section according to the line IV - IV in 2 ;

figure 5

the cut according to the line IV - IV in 3 ;

6

in a detail enlargement a schematic, perspective sectional view along the plane E in 3 , with a geometric plane E applied to clarify the configuration and a projected geometric area F resulting therefrom;

7

in a detail enlargement a schematic, perspective sectional view along the plane E 'in figure 3 , with geometrical plane E′ applied to explain the configuration of the plastic layer and geometrical cover surfaces D resulting therefrom in projection;

8

a sectional view according to 3 , but based on a floor structure using a decoupling mat according to 1 ;

9

the cut according to the line IX - IX in 8 ;

10

one of the 8 Corresponding representation, however, relating to a second embodiment;

11

another of the 8 corresponding representation relating to a third embodiment.

Description of the embodiments

Is shown and described, initially with reference to the illustration in figure 1 , A decoupling mat 1, according to the in the Figures 1 - 9 illustrated first embodiment may consist solely of a plastic layer 2. Alternatively, as described in more detail below, a fleece layer 20 and/or 21 can be provided on one or both sides of the plastic layer 2 (cf. figures 10 and 11 ).

The plastic layer 2 can be produced, for example, by deep-drawing, and has a longitudinal extent l and a width extent b viewed transversely thereto.

The plastic layer 2 has, for example, as a result of deep-drawing, elongated rib-like formations 3 in the longitudinal extent 1 . According to the sectional view in figure 3 be designed at least approximately semicircular in a cross-section transverse to the longitudinal extent l, with a surface 4 which faces a first broad side B ₁ of the plastic layer 2 .

As also shown, the plastic layer 2 can have a substantially constant material thickness a over the entire longitudinal extension l and the entire width extension b. This material thickness a can be, for example, approximately 0.2 mm or more, further, for example, 0.5 mm up to 1 mm or 2 mm.

On the second broad side B ₂ opposite the first broad side B ₁ , there is a groove-like recess 5 in the area of the protrusions 3 with a cross-section according to FIG figure 3 inner surface 6 possibly concentric to the surface 4.

The formations 3 are arranged one behind the other in the manner of a chain, viewed in the longitudinal direction l. The individual rows of formations preferably run parallel to one another, with a continuous channel 7 remaining between two rows of formations 3 running directly next to one another and thus on both sides of the formations 3 transversely to their longitudinal extent with respect to all formations 3 formed one behind the other in their longitudinal extent. This channel 7 preferably extends in a straight line, with a constant depth t over the length of the longitudinal extension l, this depth t being plotted perpendicularly to a plane U which touches the formations 3 in the region of their respective zenith on the surface 4 .

With regard to all of the formations 3 formed one behind the other in their longitudinal extension, each channel 7 simultaneously forms on both sides a wall 8 that appears continuous on the second broad side _B2 , which wall 8 on the first broad side _B1 in the longitudinal extension l merges with interruptions into the wall forming the formations 3 .

Each formation 3 is limited in its longitudinal extension 1 by sections 9 of reduced height and, in the exemplary embodiment shown, also of reduced width. The section 9 can have a width dimension c′ viewed in the width dimension b, which can correspond to about a quarter to a half, further for example a third of the greatest width dimension c of a formation 3 viewed in the same direction.

The height h of each formation 3 perpendicular to the plane U can also be, for example, 1.5 to 4 times, further, for example, about 2 to 3 times the reduced height h' of the section 9 connecting the formations 3 in the longitudinal direction correspond (cf. figure 3 ).

At the same time, these connecting sections form, with respect to the recesses 5, correspondingly with respect to the second broadside B ₂ , limited partial areas 10 of lesser depth s' and possibly also lesser widths d' viewed transversely to the longitudinal extent l, with this depth s' being about one-fifth to one-half , Further, for example, a quarter or a third of the depth s of a recess 5 can correspond. The respective depth s, s' is plotted perpendicularly to a plane O, which runs parallel to the plane U in the area of the second broad side B ₂ and touches the plastic layer 2 in areas that are in the transition of the walls 8 into the partial areas 10 or in the Transition to the wall of an adjacent recess 5 result. The reduced width d′ can correspond to approximately 0.2 to 0.7 times, for example 0.5 times, the greatest width d of a recess viewed transversely to the longitudinal extension l.

The formations 3 separated from one another by the sections 9 in the longitudinal extension l, but connected to one another in a chain-like manner via the sections 9 can, as also shown, have the same formation lengths, as well as more preferably the same widths c viewed transversely thereto.

The rows of formations 3 can also be arranged offset to one another, viewed in the longitudinal extension r, in such a way that an arrangement “with a gap” results in relation to the sections 9 .

Furthermore, a section 9 can be arranged between two formations 3 arranged one behind the other approximately in the middle with respect to the longitudinal extension of a formation 3 of an adjacent row of formations.

Correspondingly, such an offset arrangement can also be given with regard to the partial areas 10 connecting the recesses 5 in series.

Thus, the trough-like recesses 5 of a row are connected to one another in the manner of an overflow by the partial regions 10 below the plane O. As a result of the continuous wall 8 in the longitudinal extension l--due to the continuous channel 7 on the opposite broad side--the recesses 5 in one row are separated from the recesses 5 in the directly adjacent row.

The arrangement and dimensional design or spacing of the formations 3 can also be selected so that, according to the schematic representation in figure 6 a plane E running parallel to the planes U and O can be created, which extends below the greatest height of the recesses 5 in the plane U and above the sections 9 of reduced height h' (cf. also figure 3 ).

How out figure 6 As can be seen, such an arrangement of a geometric plane E results in an island-like appearance of the formations 3 approximately over half their height extension h beyond the plane E.

The remaining area F between the protrusions 3 projected perpendicularly to the plane E can correspondingly have a lattice-like structure, with open areas 11 running between two adjacent protrusions 3 and thus overlapping the channel 7 in the longitudinal direction, which cross connecting areas 12 in the region of the sections 9 of reduced height h' are connected to one another. These connecting surfaces 12 result from sub-surfaces 13 which are each assigned to a channel 7 .

With regard to a further geometrical plane E′, which is aligned parallel to the above-described plane E and which is oriented in such a way that it passes through both the recesses 5 and the sub-areas 10 of lesser depth s′, In a vertical projection between two directly opposite walls 8, a continuous flat geometric top surface D can result (cf. figure 7 ), which is separated from an adjacent top surface by the wall 9.

This top surface D runs in accordance with the plane E' below a maximum height of the wall 8.

The top surfaces D of a row of recesses 5 arranged one behind the other in the longitudinal extent l are connected to one another in a chain-like manner via connecting sections 14 in the partial regions 10 of lesser depth s′, a connecting section 14 being composed of partial sections 15 assigned to the respective recess 5 .

How from the in figure 8 As can be seen in the installation situation shown, the first broad side B ₁ forms the underside of the uncoupling mat 1. Correspondingly, the surface 4 of the protrusions 3 points downwards in the direction of a bearing surface 16 of the floor 17. An approximately linear support of the uncoupling mat 1 can arise here the zenith areas of the formations 3 on the bearing surface 16 result. In any case, only a small-area, interrupted support in the area of the formations 3 is given by the configuration described above. The gutters 7 are in accordance with the position of use figure 8 connected to each other via the sections 9 of lower height h'.

An adhesive mortar 18 can be applied directly to the upper side of the plastic layer 2 formed by the second broad side B ₂ for adhesively fixing ceramic or stoneware tiles 19, for example.

The adhesive mortar 18 engages in the indentations in the area of the recesses 5, as well as in the depth s' reduced by the partial areas 10, resulting in a good bond.

In particular, to increase the detention or A fleece layer 20, 21 can be provided on one or both sides, that is to say correspondingly on the upper and/or lower side of the plastic layer 2.

Here, as is also preferred, the non-woven layer 20 assigned to the second broad side B ₂ - corresponding to the upper side - can be provided contour-adapted to the surface of the plastic layer 2, correspondingly also lining the recesses 5, as well as the partial regions 10 of reduced depth s'. .

The upper fleece layer 20 can have a thickness corresponding to the material thickness a of the plastic layer 2 or a thickness that is reduced compared to this thickness, as is shown in FIGS figures 10 and 11 is shown.

An optionally provided lower fleece layer 21 can, as preferred, extend stretched in one plane (preferably plane U), accordingly preferably lies only tangentially on the surface 4 in the area of the formations 3 and is more preferably also attached to the plastic layer 2 there .

The lower non-woven layer 21 can be used to adhesively fix the uncoupling mat 2 designed in this way to the floor 17, with the above-described arrangement of the lower non-woven layer 21 retaining the hollow structure below the plastic layer 2 resulting from the formation of the grooves 7 and the partial areas 10.

The lower fleece layer 21 can be chosen to be the same as the upper fleece layer 20 in terms of its material thickness figure 10 a lower fleece layer 21 is shown, the thickness of which can correspond approximately to the material thickness a of the plastic layer 2 .

The lower fleece layer 21, which may also serve as a decoupling fleece, can also be used as shown in figure 11 have a significantly greater thickness compared to the upper fleece layer 20, as well as possibly compared to the plastic layer 2, for example a thickness that is double or triple the thickness of the plastic layer 2. <b>List of reference characters</b> 1 decoupling mat H Height 2 plastic layer H' Height 3 molding l longitudinal extent 4 surface s depth 5 recess it's depth 6 Inner surface t depth 7 gutter 8th wall b ₁ first broadside 9 Section b ₂ second broadside 10 subarea D top surface 11 open space E level 12 interface E' level 13 face f Surface 14 connection section O level 15 section u level 16 bearing surface 17 floor 18 adhesive mortar 19 tile 20 fleece layer 21 fleece layer A material thickness b material thickness c Broad c' Broad i.e Broad d' Broad

Claims (15)

Decoupling mat (1) with a continuous plastic layer (2) produced, _e.g (B ₁ ) opposite second wide side (B ₂ ), wherein the first formations (3) are further limited in their longitudinal extension (l) by sections (9) of reduced height (h'), which also at the same time with regard to the recesses (5) form limited partial areas (10) of lesser depth (s'), characterized in that the first formations (3) are formed in an elongated rib-like manner, that a dimension of a longitudinal extent corresponds to three times or more the width extent and that the formations (3) or The recesses (5) are arranged offset to one another transversely to their longitudinal extension (1). Decoupling mat (1) according to Claim 1, characterized in that the sections (9) of reduced height have a height which corresponds to 0.8 times or less the height of the formation viewed in the same direction. Decoupling mat according to one of the preceding claims, characterized in that a section (9) viewed in a width extension (b) has a width extension dimension (c') which is approximately a quarter to a half, further for example a third of the largest viewed in the same direction Width dimension (c) corresponds to a formation (3). Decoupling mat (1) according to one of the preceding claims, characterized in that a height (h) of each formation (3) perpendicular to a plane (U) is 1.5 to 4 times, further for example 2 to 3 times the reduced height (h') of the sections (9) connecting the formations (3) in the longitudinal direction. Decoupling mat (1) according to one of the preceding claims, characterized in that the formations (3) merge transversely to their longitudinal extent (l) on both sides into a continuous channel (7) with respect to all formations (3) formed one behind the other in their longitudinal extent (l), which has a constant depth (t) over its length. Decoupling mat (1) according to Claim 5, characterized in that a channel (7) simultaneously forms a continuous wall (8) with respect to all recesses (5) formed one behind the other in its longitudinal extent (l), which has a constant height (h) over its length having. Decoupling mat according to one of the preceding claims, characterized in that a section (9) or a partial area (10) is arranged approximately centrally with respect to a longitudinal extension (1) of a formation (3) or a recess (5). Decoupling mat according to one of Claims 5 to 7, characterized in that with respect to all channels (7) a jointly continuous flat geometric surface (F) can be created which, without enforcing the formations (3), below the greatest height (h) of the Formations (3) and above the sections (9) of reduced height (h '), with the respective channel (7) associated partial surfaces (13) and Connection surfaces (12) in the area of the sections (9) of reduced height (h'). Decoupling mat according to one of Claims 6 to 8, characterized in that with respect to two walls (8) directly opposite one another, only one continuous flat geometric cover surface (D) can be applied, which is separate from an adjacent cover surface (D) and without the walls ( 8) to penetrate below the greatest height of the walls (8), with the respective recess (5) associated sub-sections (15) and connecting sections (14) in the region of sub-regions (10) of lesser depth (s'). Decoupling mat according to one of the preceding claims, characterized in that the decoupling mat (1) is covered on its first and/or second broad side (B ₁ , B ₂ ) with a fleece layer (20, 21), preferably that of the second broad side (B ₂ ) associated fleece layer (20) is provided contour-adapted to the surface of the plastic layer (2). Decoupling mat according to Claim 10, characterized in that the fleece layer (20) has a thickness corresponding to the material thickness (a) of the plastic layer or a thickness which is reduced in relation to this thickness. Decoupling mat according to one of the preceding claims, characterized in that the rib-like formations (3) are designed at least approximately semicircularly in a sectional view in a cross section transverse to the longitudinal extension (l), with a surface (4) which is a first broad side (B ₁ ) facing the plastic layer (2). Decoupling mat according to one of the preceding claims, characterized in that the formations (3) which are separated from one another by the sections (9) in the longitudinal extension (l) but are thereby connected to one another in a chain-like manner have the same formation lengths and, more preferably, the same widths (c) when viewed transversely thereto. . Decoupling mat according to one of the preceding claims, characterized in that a section (9) is arranged between two formations (3) arranged one behind the other approximately centrally with respect to the longitudinal extension of a formation (3) of an adjacent row of formations. Floor structure, in particular in a building, with a decoupling mat (1) according to one of Claims 1 to 14, the first broad side (B ₁ ) forming an underside of the decoupling sheet (1).

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