Decoupling sheet

Abstract

The invention relates to a decoupling sheet ( 1 ) having a carrier plate ( 2 ) and a plurality of nubs ( 4 ) protruding from the carrier plate plane ( 3 ). According to the invention, a plurality of protrusions ( 21 a ) and/or recesses ( 21 b ) is provided on the side of the nub base ( 10 ) of at least one nub ( 4 ) facing toward the nub interior space ( 20 ) and/or a plurality of protrusions ( 21 c ) and/or recesses ( 21 d ) is provided on the side of the carrier plate ( 2 ) facing toward the nub interior space ( 20 ), especially wherein the protrusion ( 21 a ) and/or the recess ( 21 b ) on the nub base ( 10 ) and/or the protrusion ( 21 c ) and/or the recess ( 21 d ) on the carrier plate ( 2 ) has a height and/or a depth greater than 1 μm, preferably greater than 100 μm, further preferably between 100 and 1000 μm and especially at least substantially between 300 and 500 μm.

1 . A decoupling sheet having a carrier plate and a plurality of nubs protruding from the carrier plate plane,
 wherein   a plurality of protrusions and/or recesses is provided on the side of the nub base of at least one nub facing toward the nub interior space and/or a plurality of protrusions and/or recesses is provided on the side of the carrier plate facing toward the nub interior space, especially wherein the protrusion and/or the recess on the nub base and/or the protrusion and/or the recess on the carrier plate has a height and/or a depth greater than 1 μm, preferably greater than 100 μm, further preferably between 100 and 1000 μm and especially at least substantially between 300 and 500 μm.   
     
     
         2 . The decoupling sheet according to  claim 1 , wherein more than 20, preferably more than 100, further preferably more than 1000, preferably more than 10000 protrusions and/or recesses are provided, wherein the protrusions and/or recesses, are arranged in an irregular or unordered manner preferably on both the nub base and on the carrier plate. 
     
     
         3 . The decoupling sheet according to  claim 1 , wherein at the protrusions and/or the recesses form a structured surface of the nub base and/or the carrier plate and/or the protrusions and/or recesses comprise different shapes and/or structures and/or at least one protrusion at least one recess comprises at least one shaping, especially a sickle shape and/or an arc segment shape and/or a crescent shape, to form an undercut. 
     
     
         4 . The decoupling sheet according to  claim 1 , wherein the nub has multiple legs, especially wherein a plurality of protrusions and/or recesses is provided on the leg bottom of a leg and/or nubs immediately adjacent transversely to the lengthwise direction and in the lengthwise direction of the carrier plate have a triaxial nub base, especially one with at least three leg sides. 
     
     
         5 . The decoupling sheet according to  claim 1 , wherein the protrusion and/or recess on the nub base is formed in the shape of a spiral and/or an arc segment and/or a protrusion in shape of a spiral and/or recess is provided in the middle region of the nub base. 
     
     
         6 . The decoupling sheet according to  claim 1 , wherein protrusions and/or recesses in the shape of an arc segment are provided about the center point of the nub on the leg bottom, concentric to the middle region, and/or the protrusions and/or recesses of the nub base are web-like and/or have a rectangle shape and/or ellipse shape. 
     
     
         7 . The decoupling sheet according to  claim 1 , wherein web-like and/or rectangular and/or elliptical protrusions and/or recesses on the nub base are oriented transversely and/or longitudinally to the lengthwise direction of the carrier plate and/or a plurality of protrusions and/or recesses are provided on the carrier plate and the protrusions and/or recesses are arranged in rows running longitudinally and transversely to the lengthwise direction of the carrier plate and/or the protrusions and/or recesses of the carrier plate are web-like and/or of rectangle and/or ellipse shape and/or the protrusions and/or recesses of the carrier plate are elongated and oriented by their longitudinal extension solely transversely and/or longitudinally to the lengthwise direction of the carrier plate and/or protrusions and/or recesses running in a row transversely and/or longitudinally to the lengthwise direction of the carrier plate are arranged in alternating orientation. 
     
     
         8 . The decoupling sheet according to  claim 1 , wherein at least one nub having a triaxial nub base is provided with three long sides and the middle region of the triaxial nub base is defined by a circle which all the long sides contact tangentially. 
     
     
         9 . The decoupling sheet according to  claim 1 , wherein the nub has a concave shape on at least one long side. 
     
     
         10 . The decoupling sheet according to  claim 1 , wherein at least one shaping especially in the form of a sickle and/or an arc segment and/or a crescent is formed in the region of the long side and/or leg side of the nub in order to form an undercut on the interior of the nub, wherein the shaping is particularly formed by a protrusion protruding out from the nub interior space. 
     
     
         11 . The decoupling sheet according to  claim 1 , wherein the protrusion is provided in the region of the nub base, in particular that it passes directly into the nub base and/or the shaping extends for at least 40%, preferably between 50% and 100% and especially between 60% and 90%, of the long side and/or the leg side. 
     
     
         12 . The decoupling sheet according to  claim 1 , wherein the end region formed by two converging long sides is free of undercuts and/or the nub is formed rounded and without corners at least at one end region resulting from two converging long sides and/or the radius of a long side is multiple times longer than the radius of an end region, preferably the radius of a long side is twice as large as the radius of an end region. 
     
     
         13 . The decoupling sheet according to  claim 1 , wherein the nub and/or the triaxial nub base has mirror symmetry with respect to a center axis running at least substantially parallel to the lengthwise direction and/or three spaced-apart legs are provided, emerging from the middle region, wherein the angle of spaced-apart leg axes is at least 90° and/or the leg length of one leg, especially that of the leg running parallel to the center axis, is less than the other two leg lengths, and/or the angle of the leg axis of the shorter leg with respect to the leg axis of the adjacent leg is greater than 120° and especially less than 130°. 
     
     
         14 . The decoupling sheet according to  claim 1 , wherein nubs running transversely to the lengthwise direction of the carrier plate are arranged such that no straight line running transversely to the lengthwise direction of the carrier plate is formed continuously on the carrier plate and/or nubs running in the lengthwise direction of the carrier plate are arranged such that no straight line running in the lengthwise direction the carrier plate is formed continuously on the carrier plate and/or nubs running longitudinally and transversely to the lengthwise direction of the carrier plate are arranged such that no straight line running at a slant to the lengthwise direction of the carrier plate is formed continuously on the carrier plate. 
     
     
         15 . The decoupling sheet according to  claim 1 , wherein the nubs are arranged in rows running in the lengthwise direction and transverse direction, wherein the center points of the nubs running in the lengthwise direction are arranged on a line running at least substantially parallel to the lengthwise direction and/or the center points of the nubs running transversely to the lengthwise direction are arranged on a line running at least substantially perpendicular to the lengthwise direction. 
     
     
         16 . The decoupling sheet according to  claim 1 , wherein the shorter leg of the nubs arranged in a row of successively arranged nubs running at least substantially parallel to the lengthwise direction is oriented in the lengthwise direction and the shorter leg of the nubs arranged in the immediately adjacent row of successively arranged nubs running at least substantially parallel to the lengthwise direction is oriented opposite to the lengthwise direction. 
     
     
         17 . The decoupling sheet according to  claim 1 , wherein a flat connection means is provided, in particular fastened, on the outside of the nub base for connecting to the ground, and preferably the connection means is embodied as a nonwoven and/or a textile and/or paper and/or a scrim and/or a lattice, especially across the entire surface and/or in a lattice shape. 
     
     
         18 . The decoupling sheet according to  claim 1 , wherein the nub has a height between 1 and 5 mm, preferably between 1 and 4 mm, further preferably between 2.5 and 3.5 mm, and/or the clear gap between adjacent nubs is greater than 2 mm, in particular, there is a clear gap between 3 mm and 9 mm, preferably between 4 and 8 mm, further preferably between 5 and 6 mm, and/or the ratio of the area of the nub bases of all the nubs to the area of the carrier plate is between 40% and 70%, preferably between 45% and 55% and especially at least substantially 50%. 
     
     
         19 . A method for production of a decoupling sheet having a carrier plate and a plurality of nubs protruding from the carrier plate plane,
 wherein   a plurality of protrusions and/or recesses is placed in the side of the nub base of at least one nub facing toward the nub interior space and/or a plurality of protrusions and/or recesses is placed in the side of the carrier plate facing toward the nub interior space.   
     
     
         20 . The method for production of a decoupling sheet according to  claim 19 , wherein in that the nub bases immediately adjacent nubs have a triaxial shape transversely to the lengthwise direction and in the lengthwise direction of the carrier plate. 
     
     
         21 . The method according to  claim 19 , wherein the protrusion and/or the recess is made by a laser process, a plasma process, a machining process, preferably blasting, especially using sand and/or nutshells, and/or by embossing during and/or after the production of the decoupling sheet.