Drainage body

Abstract

A drainage body is disclosed which comprises at least two substantially identically shaped surface units, that is a base unit and a substantially identically shaped top unit, which are combinable with one another in an installation spacing by way of spacers. It is proposed to form the surface units to be substantially interlockingly stackable in such a manner that the installation spacing of the surface units is considerably larger than their spacing in the stacked condition, whereby the spacers essentially have, for example, a frusto-conical or frusto-pyramid shape with a circumscribed cross-sectional area which becomes smaller as its distance from the surface units increases. As an alternative to this, it may be provided that the spacers are disposed in such a manner on the surface units that the base units and the top units are layable so as to be overlapping one another in the manner of a masonry bond. As a result this creates high stability with simultaneous space-saving storability and transportability.

1 . Drainage body, comprising at least two substantially identically shaped surface units, that is a base unit and a substantially identically shaped top unit, which are combinable with one another in an installation spacing (DE) by way of spacers,
 characterized in that   the spacers are disposed in such a manner on the surface units that the base units and the top units are layable so as to be overlapping one another in the manner of a masonry bond.   
     
     
         2 . Drainage body according to  claim 1 ,
 characterized in that   the spacers essentially have, for example, a frusto-conical or frusto-pyramid shape with a circumscribed cross-sectional area which becomes smaller as its distance from the surface units increases.   
     
     
         3 . Drainage body according to  claim 1 ,
 characterized in that   the spacers are formed as hollow bodies and are molded integrally with the surface units.   
     
     
         4 . Drainage body according to  claim 1 ,
 characterized in that   the surface units are interlockingly stackable in a similarly oriented manner and preferably without offset such that the installation spacing (DE) of the surface units is considerably larger than their spacing (D S ) from one another in the stacked condition.   
     
     
         5 . Drainage body according to  claim 2 ,
 characterized in that   the spacers and/or the surface units have plug/socket fastening sections distributed in such a way that fastening sections, which are each complementary to one another, interlock in the installed condition.   
     
     
         6 . Drainage body according to  claim 5 ,
 characterized in that   fastening sections, which are each complementary to one another, are disposed on a surface unit in such a manner that the following rules are applicable:   a) The arrangement of fastening sections each identically formed on one half of the surface unit is laterally reversed in respect of a diagonal of this half of the surface unit;   b) The arrangement of the fastening sections is mirrored in respect of a first area bisector of the surface unit;   c) In respect of a second area bisector of the surface unit, the arrangement of the fastening sections is inverted such that in each case the other fastening section is located in a mirrored position.   
     
     
         7 . Drainage body according to  claim 5 ,
 characterized in that   the fixing sections have locking devices for mutual interlocking of the spacers and/or for interlocking of the spacers with the surface units in the installed condition.   
     
     
         8 . Drainage body according to  claim 1 ,
 characterized in that   the surface units have breakaway sections for the formation of inspection openings and that load distribution elements are provided for placing on the inspection opening and for supporting the cover.   
     
     
         9 . Drainage body according to  claim 1 ,
 characterized in that   the spacers have stiffening portions, in particular stiffening corrugations on their circumferential surfaces for stiffening against bending and buckling.   
     
     
         10 . Drainage body according to  claim 1 ,
 characterized in that   the side walls are provided and designed such that they are attachable to the base units and to the top units to combine with each other.   
     
     
         11 . Drainage body according to  claim 10 ,
 characterized in that   the side walls have side wall supports which, after joining the side walls to the base units and to the top units, are engaged preferably at their ends with the spacers to support the side walls.   
     
     
         12 . Drainage body according to  claim 1 ,
 characterized in that   the surface units have in particular joining devices on the margins for horizontal and/or vertical joining to other surface units and/or for attaching side walls.   
     
     
         13 . Drainage body according to  claim 1 ,
 characterized by   cover elements for covering openings in the surface units in the region of the spacers.   
     
     
         14 . Drainage body, comprising a plurality of substantially identically shaped surface units, that is base units and substantially identically shaped top units, in particular drainage bodies according to  claim 1 ,
 characterized in that   the base units and the top units are joined together so as to be overlapping one another in the manner of a masonry bond.