Shell designed for quick and easy assembly

Abstract

The present invention relates to a shell ( 1 ) for firing from a gun barrel, which shell ( 1 ) comprises a shell body ( 2 ), comprising a front shell body part ( 3 ) and a rear shell body part ( 4 ), and a girdle ( 7 ), mutually joined together. The object of the invention is a shell ( 1 ) designed such that it is quicker and easier to assemble/disassemble the shell ( 1 ) when the explosive charges of the shell ( 1 ) need to be exchanged, or when the shell ( 1 ) has to be destroyed and/or recovered. The invention is characterized in that the girdle ( 7 ) of the shell ( 1 ) constitutes a binding element ( 7 ) for the shell body parts ( 3, 4 ) and in that the shell body parts ( 3, 4 ) are joined together with the girdle ( 7 ).

1 . Shell for firing from a gun barrel, which shell comprises a shell body, comprising a front shell body part and a rear shell body part  4 , and a girdle, mutually joined together, characterized in that the girdle constitutes a binding element for the shell body parts. 
     
     
         2 . Shell according to  claim 1 , characterized in that the girdle is designed as a circular band and in that the front and the rear shell body parts each comprise an end flange, the outer diameter of which corresponds with the inner diameter of the girdle for joining together of the shell body parts with the girdle. 
     
     
         3 . Shell according to  claim 1 , characterized in that the inner boundary surface of the girdle is constituted by a helical thread and in that on the end flanges of the shell body parts there are arranged corresponding helical threads for joining together of the shell body parts with the girdle. 
     
     
         4 . Shell according to  claim 2 , characterized in that the end faces of the shell body parts comprise a device for centring of the shell body parts. 
     
     
         5 . Shell according to  claim 2 , characterized in that the girdle is arranged recessed in the shell body to prevent axial displacement of the girdle on the shell. 
     
     
         6 . Shell according to either of  claim 1 , characterized in that on the end flanges of the shell body parts there are arranged splines for joining together of the shell body parts with the girdle. 
     
     
         7 . Shell according to  claim 6 , characterized in that a locking device is arranged between the girdle and the shell body parts for locking of the girdle to the shell body parts. 
     
     
         8 . Shell according to  claim 7 , characterized in that the locking device comprises at least two locking pins arranged radially in the girdle, which locking pins allow the shell body parts to be locked when the locking pins are pressed down into purpose-built cavities provided in the shell body parts. 
     
     
         9 . Shell according to  claim 7 , characterized in that the locking pins are pretensioned with a resilient material and in that the locking pins are arranged movably between an unlocked and a locked position in the girdle. 
     
     
         10 . Shell according to either of  claim 1 , characterized in that at least two snap-locking devices are arranged between the girdle and the shell body parts to allow locking of the shell body parts. 
     
     
         11 . Shell according to  claim 10 , characterized in that the snap-locking device comprises a plunger arranged movably in a cylinder, which cylinder is arranged radially in the shell body. 
     
     
         12 . Shell according to  claim 11 , characterized in that the plunger is arranged, pretensioned, in a cylindrical container and in that on the inner side of the girdle cavities are provided, having a depth corresponding to approximately half the length of the plunger. 
     
     
         13 . Shell according to either of  claim 1 , characterized in that a bayonet coupling is arranged between the girdle and the shell body parts to allow the shell body parts to be locked to the girdle. 
     
     
         14 . Shell according to  claim 13 , characterized in that the bayonet coupling comprises at least two radially arranged locking pins arranged on the inner side of the girdle and at least two locking grooves, corresponding to the locking pins, arranged on the end flanges of the shell body parts. 
     
     
         15 . Shell according to  claim 2  characterized in that the inner boundary surface of the girdle is constituted by a helical thread and in that on the end flanges of the shell body parts there are arranged corresponding helical threads for joining together of the shell body parts with the girdle. 
     
     
         16 . Shell according to  claim 2 , characterized in that the end faces of the shell body parts comprise a device for centring of the shell body parts. 
     
     
         17 . Shell according to  claim 3 , characterized in that the end faces of the shell body parts comprise a device for centring of the shell body parts. 
     
     
         18 . Shell according to  claim 2 , characterized in that the girdle is arranged recessed in the shell body to prevent axial displacement of the girdle on the shell. 
     
     
         19 . Shell according to  claim 3 , characterized in that the girdle is arranged recessed in the shell body to prevent axial displacement of the girdle on the shell. 
     
     
         20 . Shell according to  claim 4  characterized in that the girdle is arranged recessed in the shell body to prevent axial displacement of the girdle on the shell.