Method of producing a woven webbing

Abstract

The invention relates to a method for producing a woven belt strap, particularly an automobile safety belt strap, which is characterized in that the weft threads are alternately inserted from one belt strap side and then from the other belt strap side, during which at least the first of both warp threads remain on the respective weft entry side without being woven, and a catch thread, which loops the weft on the weft exit side, is drawn into the weave until the warp threads, which remained unwoven with the preceding weft, are woven by the catch thread loop.

1 . A method of producing a woven webbing, particularly a vehicle occupant restraint belt, comprising the steps: 
 picking the weft threads alternatingly from one side of the webbing and then from the other so that at least the first two warp threads at each pick side remain out of the weave, and    drawing in a thread tucking the pick at the pick exit side sufficiently so that said warp threads remaining out of the weave in the previous pick are now included in the weave by the looping of the tuck thread.    
   
   
       2 . The method as set forth in  claim 1  for producing a tubular edge, comprising the steps: 
 a) employing at least four edge threads on each side, remaining out of the weave at the picking side and always becoming included in the weave from the subsequent pick at the pick exit side by it drawing in the tuck thread on return of the weft needle up to the basic warp threads, and    b) employing on each side a lacing thread running warpwise and located in front of the first warp thread and outside of the first weft thread respectively, said lacing thread working like an edge thread but being lifted on at least every second pick, resulting in the edge fabric formed by the tuck threads being drawn around from the pick up to the basic fabric.    
   
   
       3 . The method as set forth in  claim 1  wherein: 
 a) for run prevention an additional bracket with a thread eyelet is secured to each tucker so that a locking thread drawn through the eyelet is located on upwards movement of the tucker above the pick, the tuck thread advanced from below first being taken by a knitting needle in crocheting the tuck thread and    b) on lowering of the tucker the advancing knitting needle takes the lock thread coming from above and twines the tuck thread resulting in the lock thread becoming intertwined with the tuck thread in not being drawn into the edge of the fabric but nevertheless preventing any pull-up of the tuck thread.    
   
   
       4 . The method as set forth in  claim 1  wherein a rigid thread, particularly a monofilament yarn, is employed as the weft and a soft thread, particularly a multifilament yarn is employed as the tuck thread.