EP3656945A1 - Decoupling mat and floor structure in particular in a building comprising a decoupling mat - Google Patents

Abstract

The invention relates to a decoupling mat (1) with a continuous plastic layer (2), which is produced, for example by deep drawing, and has rib-like formations (3) elongated on a first broad side (B ₁), the formings (3 ) also form groove-like recesses (5) on a second broad side (B ₂) opposite the first broad side (B ₁). In order to provide a solution which is advantageous in terms of use, it is based on the fact that the extensions (3) are limited in their longitudinal extent (1) by sections (9) of reduced height (h ') and / or width (c'), which at the same time also have regard to the recesses (5). form limited sub-areas (10) of lesser depth (s ') and / or width (d'). The invention also relates to a floor structure, in particular in a building, with a decoupling mat (1).

Description

Technical field

The invention relates to a decoupling mat with a continuous plastic layer, for example produced by deep-drawing and having rib-like formations elongated on a first broad side, the formations simultaneously forming groove-like recesses on a second broad side opposite the first broad side.

The invention further relates to a floor structure, in particular in a building, with a decoupling mat, the decoupling mat consisting of a continuous plastic layer having elongated rib-like formations on a first broad side, for example produced by deep-drawing, the formations also having groove-like recesses on a second opposite the first broad side Form broadside.

State of the art

Decoupling mats of the type in question are, for example, from the DE 37 01 414 C2 and the DE 105 41 547 A1 known. Decoupling mats of this type, 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.

Summary of the invention

In view of the aforementioned 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.

According to a first idea of the invention, a possible solution to the problem is given in a decoupling mat, in which the focus is on the length of the formations being limited by sections of reduced height and / or width, which at the same time also have partial areas of reduced depth and / or or form width.

With regard to the floor structure, a possible solution to the problem can be given in that the length of the formations is limited by sections of reduced height and / or width, which at the same time also form sub-areas of reduced depth and / or width that are limited in terms of the recesses, and that the first Broadside forms an underside of the decoupling mat.

As a result of the proposed design of the decoupling mat, there are limited configurations both in terms of its longitudinal extent and in terms of its transverse extent, with the extent of the longitudinal extent being able to correspond to a multiple of the width, more preferably at least three times, more preferably five to ten Times, possibly up to twenty times.

The sections of reduced height that delimit a respective shape in the longitudinal extent at the end can have a height dimension that is, for example, 0.8 times or less, further, for example, 0.5 times or less, up to, for example, 0.1 times that in FIG itself can correspond to the height of the formation viewed. The height can in each case be removed in a direction perpendicular to the longitudinal extent and also perpendicular to the width extent of the formation.

In particular, due to the preferably film-like configuration of the plastic layer as a result of the production in the deep-drawing process, an at least approximately constant material thickness of the plastic layer provided with the formations or recesses can result. It can furthermore result from this that associated sections of reduced height in the area of the second broad side are formed in each case in the longitudinal extent the partial areas of smaller depth and / or width delimiting the recesses, the dimensional ratio, in particular the smaller depth of the partial area, to the depth of the recess being preferred 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 decoupling mat in the use position, so that the formations can be oriented, for example, towards the raw floor or a screed layer. The decoupling mat and the floor structure finally provided for this purpose can be supported accordingly via the formations, for example on the bare floor.

The formation of individual, correspondingly not continuous in a longitudinal direction over the entire length of the plastic layer results in a favorable adaptation to the plastic surface or the decoupling mat facing surface, for example by improved adaptation to smaller unevenness in the bearing surface. In addition, the proposed design, in particular of the plastic layer, can result in an overall improved handling when laying such a decoupling mat.

Furthermore, the decoupling mat designed in this way can be present as a roll for transport and, if appropriate, also for processing. The geometrisehe Roll axis can, as is also preferred, be oriented in the longitudinal extent of the formations.

Further features of the invention are often explained below, also in the description of the figures, in their preferred assignment to the subject matter of claim 1 and / or claim 2 or to features of further claims. However, they could also be of importance in an assignment to only individual features of claim 1 and / or claim 2 or the respective further claim or in each case independently.

Thus, according to a further possible embodiment, the formations transversely to their longitudinal extent can pass on both sides into a channel which is continuous with respect to all the formations formed one behind the other in their longitudinal extent and which can have a constant depth along its length. The essentially continuous channel thus separates two rows of formations that run parallel to one another and are arranged next to one another directly transversely to the longitudinal extent, with cross-connections between the channels running overall parallel to one another being possible in the region of the sections of reduced height to limit the length of the formations.

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

This can also result in a floor structure in the position of use, in which the support surface for the decoupling mat faces between the support surface and the decoupling mat both in the longitudinal extension direction and in an extension direction transverse thereto continuous channel system results, in particular due to a partial partial support of the decoupling mat over the length-limited formations. The resulting hollow structure can form a system of interconnected vapor pressure equalization channels that extends over the entire surface.

Each channel can, as is also preferred, have a constant depth over its entire length, the relevant dimension relating to an extent perpendicular to a plane touching the formations in their highest extent, for example in the case of a barrel-shaped form in the area of the zenith, for example . In the installation situation, this level can be the contact surface facing the formations, for example of the bare floor.

With regard to the second broad side pointing upwards in the installation situation, a channel can at the same time form a continuous wall with respect to all the recesses formed one behind the other in their longitudinal extent, which wall has a constant height over its length. The wall can laterally delimit the formations and recesses arranged one behind the other in the longitudinal extent. The height of the wall can relate to a plane that touches the walls of the plastic layer in the region of its highest vertical extent and does not penetrate the walls, whereby the height dimension can be measured perpendicular to this plane up to a parallel plane in the region of the greatest depth Recesses.

The formations or the recesses can be arranged offset to one another transversely to their longitudinal extent. From this, a corresponding displacement of the sections can further, as is also preferred, be reduced Height and / or width or the partial areas of lesser depth and / or width result.

Thus, in each case a straight extension of the channels can result in the longitudinal direction, while the transverse connection of the channels, including channel sections, can be meandering overall.

According to a further preferred embodiment, a section or a partial area can be arranged approximately centrally with respect to a longitudinal extension of a formation or a recess. In the case of formations or recesses of preferably the same length, this may result in an arrangement of these formations or recesses in the association.

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

With regard to all channels, a jointly continuous, flat geometric surface can be created, which extends below the greatest height of the projections and above the sections of reduced height without enforcing the formations, partial areas assigned to the respective channel resulting and connecting areas in the area of the sections reduced Height. A geometric surface can accordingly result, the elongated surface sections of which in the region of the recesses extend through transverse partial surfaces and through these partial surfaces formed connecting surfaces are connected to each other, so that overall a grid-shaped geometric surface can result in this regard.

Also, with respect to two walls directly opposite one another, only a continuous flat geometric cover surface can be created, which is separate from an adjacent cover surface and without passing through the walls runs below the greatest height of the walls, with partial sections associated with the respective recess and connecting sections in the area of parts of less depth. Accordingly, a large number, preferably corresponding to the number of recesses, of geometric cover surfaces can result, which can be connected in a chain-like manner, arranged in the longitudinal direction one behind the other, via sub-sections each associated with a recess, which can form overall connecting sections.

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

In this case, one or both nonwoven layers can be arranged in a contour-adapted manner to the formations and / or the recesses, so that with reference to a view of one of the broad sides, even when a layer of nonwoven is applied, the above-described geometric formations or recesses, as well as partial areas, are smaller Depth and / or width or sections of reduced height and / or width can result.

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

In the case of an arrangement of a nonwoven layer both on the first and on the second broad side, these nonwoven layers can have the same design, possibly with the same material thicknesses. In this regard, different nonwoven layers can also be provided with regard to the material and / or differently with regard to the material thickness.

With regard to the disclosure, the ranges or ranges of values or multiple ranges indicated above and below also include all intermediate values, in particular in 1/10 steps of the respective dimension, and therefore possibly also dimensionless. For example, the indication 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 contains the disclosure of 0.6 up to 1mm, 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 on the one hand be used to limit a range limit from below and / or above, but alternatively or additionally to disclose one or more singular ones Values from a specified 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 based on the attached drawing, which, however, only represents exemplary embodiments. A part that is only explained with reference to one of the exemplary embodiments and, in a further exemplary embodiment, is not indicated by a due to the special feature highlighted there other part is replaced, is therefore also described for this further exemplary embodiment as a possible existing part. The drawing shows:

Fig. 1

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

Fig. 2

the top view according to arrow II in Fig. 1 ;

Fig. 3

the enlarged section along the line III - III in Fig. 2 ;

Fig. 4

the enlarged section along the line IV - IV in Fig. 2 ;

Fig. 5

the section along the line IV - IV in Fig. 3 ;

Fig. 6

in a detail enlargement a schematic, perspective sectional view along the plane E in Fig. 3 , with the geometric plane E created to clarify the configuration and a resulting geometric surface F;

Fig. 7

In an enlarged detail, a schematic, perspective sectional view along the plane E 'in Figure 3 , with the geometric plane E 'created to explain the configuration of the plastic layer and the resulting geometric top surfaces D;

Fig. 8

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

Fig. 9

the section along the line IX - IX in Fig. 8 ;

Fig. 10

one of the Fig. 8 corresponding representation, but relating to a second embodiment;

Fig. 11

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

Description of the embodiments

Is shown and described, initially with reference to the representation in Figure 1 , a decoupling mat 1, which according to the in Figures 1 - 9 illustrated first embodiment can consist solely of a plastic layer 2. Alternatively, as described in more detail below, a nonwoven 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 extension 1 and a transverse extension b viewed transversely.

The plastic layer 2 has, for example, deep drawing in the longitudinal direction 1 elongated rib-like formations 3. According to the sectional representation in Figure 3 in a cross section transversely to the longitudinal extent l be at least approximately semicircular, with a surface 4 facing 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 extent 1 and the entire width extent b. This material thickness a can, for example. about 0.2 mm or more, further 0.5 mm up to 1 mm or 2 mm.

On the second broad side B ₂ opposite the first broad side B ₁ , a groove-like recess 5 with a cross section according to FIG Figure 3 optionally concentric to the inner surface 6 extending to the surface 4.

When viewed in the longitudinal direction 1, the formations 3 are arranged one behind the other like chains. The individual rows of formations preferably run parallel to one another, a channel 7 remaining with respect to all the formations 3 formed one behind the other in terms of their longitudinal extent remaining between two immediately adjacent rows of formations 3 and thus on both sides of the formations 3. This channel 7 preferably extends in a straight line, with a depth t which remains constant over the length in the longitudinal extent l, this depth t being removed perpendicular 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 extent, each channel 7 simultaneously forms on both sides a wall 8 that appears continuously on the second broad side B ₂ , which wall 8 on the first broad side B ₁ extends in the longitudinal extent 1 with interruptions into the wall forming the formations 3 .

Each shape 3 is limited in its longitudinal extent 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 width extension b, which is approximately a quarter to a half, further a third of the largest width dimension c considered in the same direction can correspond to a formation 3.

The height h of each formation 3 perpendicular to the plane U can further, for example, 1.5 to 4 times, further, for example, approximately 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 regard to the recesses 5, corresponding to the second broad side B ₂ , limited sub-regions 10 of smaller depth s' and possibly also smaller widths d 'viewed transversely to the longitudinal extent 1, this depth s' being about a fifth to a half , further can for example correspond to a quarter or a third of the depth s of a recess 5. The respective depth s, s' is removed perpendicular to a plane O, which, parallel to the plane U, in the region of the second broad side B ₂ touches the plastic layer 2 in regions that intersect in the transition of the walls 8 into the partial regions 10 and Transition to the wall of an adjacent recess 5 result. The reduced width d 'can correspond approximately to 0.2 to 0.7 times, for example 0.5 times the largest, the largest width d of a recess, viewed transversely to the longitudinal extent l.

The formations 3, which are separated from one another by the sections 9 in the longitudinal extent 1, but are connected to one another in a chain-like manner via the sections 9, can, as also shown, have the same form lengths, as well as, preferably, the same widths c viewed transversely thereto.

The rows of formations 3 can also be arranged so as to be offset relative to one another in the longitudinal extent r such that an arrangement “with a gap” results with respect to the sections 9.

Thus, a section 9 can further be arranged between two formations 3 arranged one behind the other, approximately centrally with respect to the longitudinal extent of a form 3 of an adjacent form row.

Correspondingly, such an offset arrangement can also be provided with respect to the partial regions 10 connecting the recesses 5 in series.

Thus, the trough-like recesses 5 of a row are connected to one another in an overflow manner by the partial regions 10 below the plane O. Due to the wall 8 running in the longitudinal extent 1 - due to the running channel 7 on the opposite broad side - the recesses 5 of a row are separated from the recesses 5 of the immediately adjacent row.

The arrangement and dimensional design or spacing of the formations 3 can also be selected such that, according to the schematic illustration in FIG Figure 6 a plane E running parallel to the planes U or 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 to recognize, with such an arrangement of a geometric plane E, an island-like appearance of the formations 3 results approximately beyond their half height extent h beyond the plane E.

The remaining surface F projected perpendicular to the plane E between the formations 3 can accordingly have a lattice-like structure, with free areas 11 running between two adjacent formations 3 and thus overlapping with the groove 7 in the longitudinal direction, which over crosswise connecting surfaces 12 in the area the sections 9 of reduced height h 'are interconnected. These connecting surfaces 12 result from partial surfaces 13, each of which is associated with a channel 7.

With regard to a further geometric plane E ′ aligned parallel to the above-described plane E, which is oriented such that it penetrates both the recesses 5 and the partial regions 10 of lesser depth s ′, a perpendicular projection can be made between two walls 8 lying directly opposite one another result in a continuous flat geometric top surface D (cf. Figure 7 ), which is separate to an adjacent top surface through the wall 9.

This cover surface D runs according to the plane E 'below a greatest height of the wall 8.

The top surfaces D of a row of recesses 5 arranged one behind the other in the longitudinal extent 1 are connected in a chain-like manner to one another via connecting sections 14 in the partial areas 10 of lesser depth, a connecting section 14 being composed of partial sections 15 assigned to the respective recess 5.

As from the in Figure 8 To recognize the installation situation shown, the first broad side B _{1 forms} the underside of the decoupling mat 1. Accordingly, the formations 3 have the surface 4 downward in the direction a support surface 16 of the floor 17. This may result in an approximately linear support of the decoupling mat 1 over the zenith areas of the formations 3 on the support surface 16. In any case, only a small-area, interrupted support in the area of the formations 3 is given by the design described above. The channels 7 are also in the use position according to 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 fixing ceramic or stoneware tiles 19, for example.

The adhesive mortar 18 engages in the depressions in the area of the recesses 5, as well as in the depth s ′ reduced by the partial areas 10, which results in a good bond.

In particular to increase the detention or. Adhesive strength can be provided on one or both sides, that is to say correspondingly on the top and / or bottom of the plastic layer 2, a nonwoven layer 20, 21.

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

The upper nonwoven 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 nonwoven layer 21 can extend, as preferred, stretched in one plane (preferably plane U), correspondingly 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 fleece layer 21 can serve to fix the decoupling mat 2 designed in this way on the floor 17, the hollow structure resulting from the formation of the grooves 7 and the partial regions 10 below the plastic layer 2 being retained due to the arrangement of the lower fleece layer 21 described above.

The lower nonwoven layer 21 can be chosen to be the same in material thickness as the upper nonwoven layer 20. In Figure 10 A lower fleece layer 21 is shown, the thickness of which may correspond approximately to the material thickness a of the plastic layer 2.

The lower nonwoven layer 21, which may also serve as a decoupling nonwoven, can also be shown in FIG Figure 11 have a thickness which is substantially greater than that of the upper nonwoven layer 20, as well as, if applicable, of the plastic layer 2, for example a thickness which is double or triple that of the plastic layer 2.

The above statements serve to explain the inventions covered by the application as a whole, which also independently further develop the state of the art at least through the following combinations of features, it being possible for two, more or all of these combinations of features to also be combined, namely:

A decoupling mat, which is characterized in that the formations 3 are limited in their longitudinal extent l by sections 9 of reduced height h 'and / or width c', which at the same time also have partial areas 10 of reduced depth s' and / or width which are limited with regard to the recesses 5 d 'form.

A floor structure, which is characterized in that the formations 3 are limited in their longitudinal extent l by sections 9 of reduced height h 'and / or width c', which at the same time also have partial areas 10 of reduced depth s' and / or width which are limited with regard to the recesses 5 d 'form, and that the first broad side B1 forms an underside of the decoupling mat 1.

A decoupling mat or a floor structure, which are characterized in that the formations 3 pass transversely to their longitudinal extension l on both sides into a channel 7 which is continuous with respect to all the formations 3 formed one behind the other in their longitudinal extension l and which has a constant depth t over its length.

A decoupling mat or a floor structure, which is characterized in that a channel 7 forms a continuous wall 8 with respect to all the recesses 5 formed one behind the other in its longitudinal extent l, which wall has a constant height h over its length.

A decoupling mat or a floor structure, which are characterized in that the formations 3 or the recesses 5 are arranged offset to one another transversely to their longitudinal extension l.

A decoupling mat or a floor structure, which is characterized in that a section 9 or a partial area 10 is arranged approximately centrally with respect to a longitudinal extension l of a formation 3 or a recess 5.

A decoupling mat or a floor structure, which are characterized in that with respect to all channels 7, a common, continuous, flat geometric surface F can be created, which can be achieved without an enforcement of the formations 3 below the greatest height h of the formations 3 and above the sections 9 of reduced height h 'extends with partial surfaces 13 and connecting surfaces 12 assigned to the respective channel 7 in the region of the sections 9 of reduced height h'.

A decoupling mat or a floor structure, which are characterized in that with respect to two walls directly opposite one another, only a continuous flat geometric cover surface D can be created, which is separate from an adjacent cover surface D and without penetrating the walls 8 below the greatest height of the walls 8 runs, with sections 15 and connecting sections 14 assigned to the respective recess 5 in the area of sections 10 of lesser depth s'.

A decoupling mat or a floor structure, which are characterized in that the decoupling mat 1 is covered on its first and / or second broad side B1, B2 with a non-woven layer 20, 21.

All the features disclosed are essential to the invention (by themselves, but also in combination with one another). The disclosure content of the associated / attached priority documents is hereby also included in the disclosure of the application (Copy of the pre-registration) included in full, also for the purpose of including features of these documents in claims of the present application. The sub-claims characterize independent inventive developments of the prior art, even without the features of a referenced claim, with their features, in particular in order to make divisional applications based on these claims. The invention specified in each claim can additionally have one or more of the features specified in the preceding description, in particular provided with reference numbers and / or in the list of reference numbers. The invention also relates to designs in which some of the features mentioned in the above description are not realized, in particular insofar as they are recognizably unnecessary for the respective intended use or can be replaced by other technically equivalent means. <b><u> List of reference symbols </u></b> 1 Decoupling mat H height 2nd Plastic layer H' height 3rd Molding l Longitudinal extension 4th surface s depth 5 Recess s' depth 6 Inner surface t depth 7 Gutter 8th Wall B ₁ first broadside 9 section B ₂ second broadside 10th Subarea D Top surface 11 Open space E level 12 Interface E ' level 13 Partial area F area 14 Connecting section O level 15 Subsection U level 16 Contact surface 17th floor 18th Adhesive mortar 19th tile 20th Fleece layer 21st Fleece layer A Material thickness b Material thickness c width c ' width d width d ' width

Claims (10)

Decoupling mat (1) with a continuous plastic layer (2), which is produced, for example, by deep-drawing and has rib-like formations (3) elongated on a first broad side (B ₁ ), the formings (3) also having groove-like recesses (5) on one of the first Form broad side (B ₁ ) opposite broad side (B ₂ ), characterized in that the formations (3) are limited in their longitudinal extent (l) by sections (9) of reduced height (h ') and / or width (c') , which at the same time also form partial areas (10) of reduced depth (s ') and / or width (d') which are limited with regard to the recesses (5). Floor structure in particular in a building with a decoupling mat (1), the decoupling mat (1) consisting of a continuous plastic layer (2) on a first broad side (B ₁ ), for example by elongated rib-like shapes (3) produced by deep-drawing, whereby the formations (3) simultaneously form groove-like recesses (5) on a second broad side (B ₂ ) opposite the first broad side (B ₁ ), characterized in that the longitudinal extent (1) of the formations (3) is reduced by sections (9) Height (h ') and / or width (c') are limited, which at the same time also form partial areas (10) of reduced depth (s ') and / or width (d') which are limited with regard to the recesses (5), and that the first Broadside (B ₁ ) forms an underside of the decoupling mat (1). Decoupling mat or floor structure according to claim 1 or 2, characterized in that the formations (3) transversely to their longitudinal extension (l) on both sides into a channel (7) which is continuous with respect to all the longitudinal extensions (l) formed in succession (7) has a constant depth (t) over its length. Decoupling mat or floor structure according to claim 1 or 2, characterized in that a channel (7) with respect to all the recesses (5) formed one behind the other in their longitudinal extension (5) also forms a continuous wall (8) which has a constant height (h.) Over its length ) having. Decoupling mat or floor structure according to claim 1 or 2, characterized in that the formations (3) or the recesses (5) are arranged offset to one another transversely to their longitudinal extent (l). Decoupling mat or floor structure according to claim 1 or 2, characterized in that a section (9) or a partial region (10) is arranged approximately centrally with respect to a longitudinal extent (l) of a formation (3) or a recess (5). Decoupling mat or floor structure according to claim 3 or 4, characterized in that with respect to all channels (7) a common, continuous, flat geometric surface (F) can be created, which can be carried out below the greatest height (h) of the formations (3) without enforcement Formations (3) and above the sections (9) of reduced height (h '), with the respective channel (7) assigned partial surfaces (13) and connecting surfaces (12) in the region of the sections (9) of reduced height (h'). Decoupling mat or floor structure according to claim 3 or 4, characterized in that with respect to two walls directly opposite one another, only a continuous flat geometric cover surface (D) can be created, which is separate from an adjacent cover surface (D) and without the walls (8) prevail below the The greatest height of the walls (8) runs with the sections (15) and connecting sections (14) assigned to the respective recess (5) in the area of sections (10) of lesser depth (s'). Decoupling mat or floor structure according to claim 1 or 2, characterized in that the decoupling mat (1) is covered on its first and / or second broad side (B ₁ , B ₂ ) with a non-woven layer (20, 21). Decoupling mat or floor structure, characterized by one or more of the characterizing features of one of the preceding claims.

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