Underlay for the human body and method for producing the same

Abstract

A simply constructed, inexpensive underlay ( 10 ) for which the underspringing arrangement ( 12 ) is formed in the simplest case by a plastic sheet ( 15 ), which is selectively reinforced by supplementary crosslinking of the plastic of the plastic sheet ( 15 ). This crosslinking provides the plastic sheet ( 15 ) with supplementarily consolidated, more stable regions ( 20 ), which support the mattress ( 11 ). If required, the plastic sheet ( 15 ) having supplementarily consolidated regions ( 20 ) may be assigned spring strips ( 14 ). It is also conceivable to integrate the underspringing arrangement ( 12 ) in the mattress ( 11 ). The underspringing arrangement ( 12 ) formed according to the invention can be easily produced, thereby creating a low-cost underlay ( 10 ) with good resilient properties.

1 . Underlay for the human body, with at least one mattress of foam plastic, characterized in that supplementarily consolidated regions ( 25 ,  26 ) are assigned to the mattress ( 11 ,  22 ).  
     
     
         2 . Underlay according to  claim 1 , characterized in that the mattress ( 11 ,  22 ) has selectively hardened regions of plastic created by supplementary consolidation in certain regions.  
     
     
         3 . Underlay according to  claim 1 , characterized in that the mattress ( 11 ,  22 ) is assigned supporting elements.  
     
     
         4 . Underlay for the human body, with at least one mattress of foam plastic and an underspringing arrangement ( 12 ), characterized in that supplementarily consolidated regions ( 20 ) are assigned to the underspringing arrangement ( 12 ).  
     
     
         5 . Underlay according to  claim 4 , characterized in that the underspringing arrangement ( 12 ) has selectively hardened regions of plastic created by supplementary consolidation in certain regions.  
     
     
         6 . Underlay according to  claim 1 , characterized in that the underspringing arrangement ( 12 ) is assigned supporting elements.  
     
     
         7 . Underlay according to  claim 1  or  4 , characterized in that the selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) are arranged in the region of a layer of plastic.  
     
     
         8 . Underlay according to  claim 7 , characterized in that the layer of plastic is formed by a plastic sheet ( 15 ), an elastomer sheet or a foam plastic sheet.  
     
     
         9 . Underlay according to  claim 3  or  6 , characterized in that the supporting elements are assigned at least to selected supplementarily consolidated regions ( 20 ;  25 ,  26 ).  
     
     
         10 . Underlay according to  claim 3  or  6 , characterized in that the selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) are supported on the supporting elements.  
     
     
         11 . Underlay according to  claim 3  or  6 , characterized in that the selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) are connected to the supporting elements respectively assigned to them.  
     
     
         12 . Underlay according to  claim 11 , characterized in that the selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) are connected with positive engagement to the supporting elements respectively assigned to them.  
     
     
         13 . Underlay according to  claim 1  or  4 , characterized in that the selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) are formed as punctiform three-dimensional structures.  
     
     
         14 . Underlay according to  claim 1  or  4 , characterized in that the selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) are formed as elongated, strip-shaped three-dimensional structures, in particular as strand-like structures, which preferably extend continuously over the entire length or width of the mattress ( 11 ,  22 ) and/or of the underspringing arrangement ( 12 ).  
     
     
         15 . Underlay according to  claim 14 , characterized in that the elongated selectively supplementarily consolidated regions ( 20 ;  25 ,  26 ) extend continuously over the entire width of the mattress ( 11 ,  22 ).  
     
     
         16 . Underlay according to  claim 3 , characterized in that the supporting elements are formed as strips extending continuously over the entire width of the mattress ( 11 ,  22 ).  
     
     
         17 . Underlay according to  claim 6 , characterized in that the supporting elements are formed as strips extending continuously over the entire width of the underspringing arrangement ( 12 ).  
     
     
         18 . Underlay according to  claim 16  or  17 , characterized in that strips are formed as spring strips ( 14 ,  23 ).  
     
     
         19 . Underlay according to  claim 1 , characterized in that the selectively supplementarily consolidated regions are integral parts of the mattress ( 22 ).  
     
     
         20 . Underlay according to  claim 4 , characterized in that the underspringing arrangement having selectively supplementarily consolidated regions is an integral part of the mattress ( 22 ).  
     
     
         21 . Underlay according to  claim 1  or  4 , characterized in that the supplementarily consolidated regions ( 20 ;  25 ,  26 ) are assigned to an underside ( 24 ) of the mattress ( 22 ).  
     
     
         22 . Underlay according to  claim 1  or  4 , characterized in that the supplementarily consolidated regions ( 20 ;  25 ,  26 ) are arranged in a region adjoining the underside ( 24 ).  
     
     
         23 . Underlay according to  claim 1  or  4 , characterized in that the selectively supplementarily consolidated regions ( 25 ,  26 ) are formed from a plastic foam of the mattress ( 22 ).  
     
     
         24 . Underlay according to  claim 22 , characterized in that the selectively supplementarily consolidated regions ( 25 ,  26 ) extend from the underside ( 24 ) of the mattress ( 22 ).  
     
     
         25 . Underlay according to  claim 1  or  4 , characterized in that the mattress is formed in more than one layer, the lower layer of the mattress being assigned the selectively supplementarily consolidated regions ( 25 ,  26 ).  
     
     
         26 . Underlay according to  claim 4 , characterized in that the selectively supplementarily consolidated regions ( 20 ) are assigned to the underspringing arrangement ( 12 ) of the mattress ( 11 ).  
     
     
         27 . Underlay according to  claim 18 , characterized in that the spring strips ( 14 ) are assigned to the underspringing arrangement ( 12 ) of the mattress ( 11 ).  
     
     
         28 . Method for producing an underlay for the human body, the underlay being formed by at least one mattress ( 11 ,  22 ) of foam plastic and an underspringing arrangement ( 12 ), characterized in that the underspringing arrangement ( 12 ) is formed by at least one layer of plastic or foam plastic, and regions of the layer of plastic or foam plastic are supplementarily consolidated by subsequent selected crosslinking.  
     
     
         29 . Method according to  claim 28 , characterized in that the underspringing arrangement ( 12 ) is formed from a lower part of the mattress.  
     
     
         30 . Method according to  claim 29 , characterized in that the underspringing arrangement ( 12 ) is formed from the foam plastic of the mattress ( 22 ).  
     
     
         31 . Method according to  claim 28 , characterized in that the subsequent selective crosslinking is restricted to selected regions of the layer of plastic or foam plastic.  
     
     
         32 . Method according to  claim 28 , characterized in that the subsequent selective crosslinking takes place thermally.  
     
     
         33 . Method according to  claim 32 , characterized in that the subsequent selective thermal crosslinking takes place by energy beams.