Cartridge with safety fuse in the drive system, and method for producing it
First Claim
1. A method for assembling a cartridge having a propulsion system and having a projectile connected to the propulsion system, wherein the propulsion system comprises a propellant casing that is filled with propellant charge and has a case bottom that has a substantially axially extending case bottom opening, and wherein the case bottom opening is closed by a plug that accommodates a primer and the plug is held in position by a fusible ring of a burst protection device, the method comprising:
- inserting the fusible ring into the case bottom opening from a rear side of the case bottom of the propellant casing until a front of the ring bears against an internal projection of the case bottom, and then inserting the plug into the case bottom opening; and
exerting an axial force on a back of the fusible ring by a head part of the plug so that the fusible ring is compressed and plastically deformed and the material of the fusible ring flows radially into the groove-shaped recesses of the plug and the case bottom, as a result of which no additional seals are necessary.
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Accused Products
Abstract
A cartridge with a drive system and a projectile which is connected to the drive system, wherein the drive system has a propellant case filled with a propellant and has a case bottom containing a substantially axially extending case bottom opening with a T-shaped edge contour. The case bottom opening is closed by a plug which is of T-shaped configuration, receives an ignition cap and is held in position by a safety fuse ring of a rupture disc. The safety fuse ring is arranged between the front side of the head part of the plug and the rear side of an adjoining inner-side projection of the case bottom, with the result that the propellant chamber is delimited by the front surface of the plug neck. An inner edge of the safety fuse ring engages in a positively locking and/or non-positive manner into an outer groove-shaped recess of the plug.
25 Citations
7 Claims
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1. A method for assembling a cartridge having a propulsion system and having a projectile connected to the propulsion system, wherein the propulsion system comprises a propellant casing that is filled with propellant charge and has a case bottom that has a substantially axially extending case bottom opening, and wherein the case bottom opening is closed by a plug that accommodates a primer and the plug is held in position by a fusible ring of a burst protection device, the method comprising:
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inserting the fusible ring into the case bottom opening from a rear side of the case bottom of the propellant casing until a front of the ring bears against an internal projection of the case bottom, and then inserting the plug into the case bottom opening; and exerting an axial force on a back of the fusible ring by a head part of the plug so that the fusible ring is compressed and plastically deformed and the material of the fusible ring flows radially into the groove-shaped recesses of the plug and the case bottom, as a result of which no additional seals are necessary. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification