Case bottom for large caliber ammunition and method for producing same

Inactive Publication Date: 2005-06-02
RHEINMETALL WAFFE MUNITION GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] It is an object of the present invention to provide a case bottom for which the guide region necessary for guiding the obturation is no longer plastically deformed, not even with gas pressures typical for performance-enhanced ammunition, thus requiring only rela

Problems solved by technology

The known case bottom has the disadvantage that the web-type guide region frequently plasticizes near the wall of the weapon barrel if the case bottom is subjected to high pressures, such as are typical with performance-enhanced KE ammunition.
This non-reversible deformation of the guide region causes a j

Method used

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  • Case bottom for large caliber ammunition and method for producing same
  • Case bottom for large caliber ammunition and method for producing same
  • Case bottom for large caliber ammunition and method for producing same

Examples

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Embodiment Construction

[0019]FIG. 1 shows an example of an embodiment of the invention. The reference 1 in FIG. 1 relates to the case bottom of a tank cartridge with combustible case jacket 100. The case bottom 1 comprises a bottom section 2 and a cylindrical case section 3 of steel. On the side facing away from the bottom section 2, the case section 3 is provided with a guide region 4 for guiding a ring-shaped obturation 5 of rubber that projects on the front and is connected to the case bottom 3.

[0020] According to the invention, the outside diameter 6 of the guide region 4 is selected such that following the loading of the respective cartridge, the guide region supports itself directly and peripherally on the loading chamber inside wall of the respective weapon (not shown herein), so that no plastic deformation can occur in the guide region 4 during the firing of a cartridge.

[0021] The internal surface 7 of the case section 3 is provided with an annular groove 8 in the guide region 4, wherein the obt...

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PUM

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Abstract

A case bottom is provided for use with a large-caliber ammunition cartridge. The case bottom has a bottom section; a cylindrical section connected to the bottom section; a guide region provided on an end of the cylindrical section opposite the bottom section; and a ring-shaped elastic obturation that projects from and is connected to the cylindrical section. An outside diameter of the guide region is such that it is for supporting itself directly on an inside wall of a loading chamber for a respective weapon barrel following loading of the cartridge.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims the priority of German Patent Application, DE 103 54 011.3 filed Nov. 19, 2003, which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] The invention relates to a case bottom for large-caliber ammunition. The invention furthermore relates to a method for producing a case bottom of this type. [0003] A related case bottom is known, for example, from reference DE 23 03 790 C3. It comprises a bottom section and a cylindrical case section made of steel, provided on the front with a relatively thin-walled, web-type guide region for guiding a ring-shaped obturation. The web-type guide region in this case is covered on the inside and outside completely by the obturation, so that following the loading of the respective cartridge, the guide region supports itself via the obturation, e.g. consisting of rubber, on the wall of the weapon barrel. [0004] The known case bottom has the disadvantage that the w...

Claims

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Application Information

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IPC IPC(8): F42B5/18F42B5/307
CPCF42B5/18F42B5/307F42B5/181
Inventor HEITMANN, THOMASBERG, MARTIN
Owner RHEINMETALL WAFFE MUNITION GMBH
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