Multi-Layer Oversewn System

Abstract

A multi-layer oversewn system having at least two flat electric conductors A protective layer made of an elastic material is located at least in an oversewn region between the flat electric conductors. The material of the protective layer is selected in such a way that it prevents a short-circuit between the flat electric conductors during the oversewing process by sealingly engaging the needle during the oversewing process.

1 . A multi-layer oversewn system comprising at least two inter-insulated flat electric conductors, and a protective layer of self-sealing elastic material is arranged at least in an oversewn region between the flat electric conductors, which prevents a short circuit between the flat electric conductors during an oversewing process.  
   
   
       2 . The system according to  claim 1 , wherein the elasticity, the sliding friction coefficient, the texture, the geometry, the density or the tear resistance of the elastic material is selected in such a way that, upon passage of a needle and thread during the oversewing process, material from a flat electric conductor is stripped from these the needle and thread by the sealing engagement of the protective layer.  
   
   
       3 . The system according to  claim 1 , wherein the flat electric conductors are textile sensor electrodes.  
   
   
       4 . The system according to  claim 1 , comprising of an electrical insulating material layer of a predetermined thickness, arranged between the two flat electric conductors.  
   
   
       5 . The system according to  claim 4 , wherein the flat electric conductors are electrically insulated from one another by the protective layer or the electrical insulating material layer.  
   
   
       6 . The system according to  claim 1 , wherein the lowermost layer is a nonwoven backing and the uppermost layer is a nonwoven cover.  
   
   
       7 . The system according to  claim 4 , wherein the protective layer or the electrical insulating material layer extend substantially over the entire surface between the flat electric conductors.  
   
   
       8 . The system according to  claim 1 , wherein at least one of the flat conductors in the oversewn region along a direction of the oversewing is shorter than at a point outside the oversewn region , and wherein the protective layer covers only the oversewn region covered by the shortened flat conductor.  
   
   
       9 . The system according to  claim 1 , wherein the protective layer between the flat electric conductors is at least partly omitted in regions located outside the oversewn region.  
   
   
       10 . The system according to  claim 1 , wherein the protective layer comprises at least one of: a modulus of elasticity between 200 and 15,000 N/mm 2 ; a thickness between 0.2 and 2 mm; a tear resistance between 20 and 500 N/mm; or a sliding friction coefficient in relation to the material of the conductor between 0.2 and 1.0.  
   
   
       11 . The system according to  claim 1 , wherein the protective layer comprises at least in part leather, rubber, silicone, polymer gel or polymer foam.  
   
   
       12 . A multi-layer oversewn system comprising at least two inter-insulated flat electric conductors capable of being pierced during an oversewing process by a needle and thread, and a protective layer arranged between the flat electric conductors, the protective layer sealingly engaging the needle and thread to substantially prevent material fragments of either electric conductor from being passed through said protective layer.  
   
   
       13 . The system according to  claim 12 , wherein the flat electric conductors are textile sensor electrodes.  
   
   
       14 . The system according to  claim 12 , comprising of an electrical insulating material layer of a predetermined thickness, arranged between the two flat electric conductors.  
   
   
       15 . The system according to  claim 14 , wherein the flat electric conductors are electrically insulated from one another by the protective layer or the electrical insulating material layer.  
   
   
       16 . The system according to  claim 14 , wherein the protective layer or the electrical insulating material layer extend substantially over the entire surface between the flat electric conductors.  
   
   
       17 . The system according to  claim 12 , wherein at least one of the flat conductors in the oversewn region along a direction of the oversewing is shorter than at a point outside the oversewn region, and wherein the protective layer covers only the oversewn region covered by the shortened flat conductor.  
   
   
       18 . The system according to  claim 12 , wherein the protective layer between the flat electric conductors is at least partly omitted in regions located outside the oversewn region.  
   
   
       19 . The system according to  claim 12 , wherein the protective layer comprises at least one of: a modulus of elasticity between 200 and 15,000 N/mm 2 ; a thickness between 0.2 and 2 mm; a tear resistance between 20 and 500 N/mm; or a sliding friction coefficient in relation to the material of the conductor between 0.2 and 1.0.