Rubber shot packing

Abstract

A rubber shot packing ( 10 ) comprises a predetermined or approximately predetermined number of hard rubber elements ( 11 ) that are arranged in a dense packing. In this case, the hard rubber elements ( 11 ) are altogether surrounded by a plastic film ( 13 ). Such a rubber shot packing ( 10 ) is intended for firing as an active charge with a powder charge that is separate from the active charge. In this case, at least one disc ( 20 ) is arranged, intended for the insertion side with respect to the powder charge, having an outside diameter corresponding to the dimensions of the firing cup and firmly connected to the rubber shot packing ( 10 ) axially centrally in relation to the hard rubber elements ( 11 ).

1 . A rubber shot packing comprising
 an active charge intended for firing, and   a powder charge that is separate from the active charge,   
     the active charge comprising
 a predetermined or approximately predetermined number of hard rubber elements, wherein the hard rubber elements are arranged in a dense packing, 
 a plastic film surrounding altogether the hard rubber elements, and 
 a disc, intended to be arranged on the insertion side of the packing with respect to the powder charge, having an outside diameter corresponding to the dimensions of the firing cup and firmly connected to the rubber shot packing axially centrally in relation to the hard rubber elements. 
 
   
   
       2 . The rubber shot packing according to  claim 1 , wherein the plastic film also surrounds the disc. 
   
   
       3 . The rubber shot packing according to  claim 1 , wherein the disc lies on the plastic film and is fastened to the latter or to one of the hard rubber elements. 
   
   
       4 . The rubber shot packing according to  claim 1 , characterized in that the disc has a thickness of between 1 and 10 millimetres, with preference between 3 and 6 millimetres. 
   
   
       5 . The rubber shot packing according to  claim 1 , wherein the disc is made of a soft plastic, in particular of a PE material, or of a cardboard material. 
   
   
       6 . The rubber shot packing according to  claim 1 , wherein the disc is connected to the plastic film by an adhesive and/or by ultrasonic welding. 
   
   
       7 . The rubber shot packing according to  claim 1 , wherein the plastic film is a tube, which shrinks in particular when exposed to heat. 
   
   
       8 . The rubber shot packing according to  claim 1 , wherein a second additional disc is provided on the side of the packing opposite to the first disc. 
   
   
       9 . The rubber shot packing according to  claim 8 , wherein the two discs lie on the plastic film and are fastened to the latter or to one of the hard rubber elements. 
   
   
       10 . The rubber shot packing according to  claim 8 , characterized in that the discs have a thickness of between 1 and 10 millimetres, with preference between 3 and 6 millimetres. 
   
   
       11 . The rubber shot packing according to  claim 8 , wherein the discs are made of a soft plastic, in particular of a PE material, or of a cardboard material. 
   
   
       12 . The rubber shot packing according to  claim 8 , wherein the discs are connected to the plastic film by an adhesive and/or by ultrasonic welding. 
   
   
       13 . The rubber shot packing according to  claim 8 , wherein the plastic film is a tube, which shrinks in particular when exposed to heat.