FI62186C - UNDERKALIBERPATRON - Google Patents

Description

62186

Alcaliper cartridge - Underkaliberpatron

The invention relates to an under-caliper cartridge having a bullet smaller than the caliber of a weapon, which is attached to a capsule which guides the bullet into the grooves and, when passed through the barrel, disengages from the bullet by centrifugal force and air resistance.

The use of low-bullet sub-caliper cartridges provides several advantages over conventional cartridges. First, the weight of the cartridge decreases and the rycyl decreases. In addition, the bullet has high speed and a flat flight path. The material of the bullet is freely selectable as it does not come into contact with the barrel of the weapon. For example, hard metal bullets can be selected for anti-tank armor, but on the other hand, low-cost lead bullets are also available.

The object of the invention is to further develop the structure of a sub-caliper cartridge of the type mentioned at the beginning so that a substantial saving in manufacturing costs is achieved.

To achieve this purpose, the sub-caliper cartridge according to the invention is characterized in that the capsule guiding the bullet in the grooves of the weapon is made in one piece with the cartridge forming the powder space, and that these separate from each other when the driving charge explodes.

In this case, the capsule and the sleeve can be made in one piece and in one operation, e.g. by injection molding from plastic. By arranging a weakening thinning and a large notching effect at the boundary point between the capsule and the sleeve, the bullet and its capsules are caused to detach from the sleeve at the desired point.

In the following, an example of the invention will be described with reference to the accompanying drawing, in which Figure 1 shows a rifle cartridge formed as a sub-caliper cartridge according to the invention, half-sectioned and before the bullet 2 62186 is attached.

Figure 2 shows the front end of the cartridge of Figure 1 with the bullet in place.

The cartridge comprises a sleeve 1 forming a powder space 3, which is closed by a base piece 2 containing a detonator. The connection is provided by a form lock. A one-piece capsule 4 with an on-roll space 8 for receiving a bullet 7 is formed at the front end of the sleeve 1. At the boundary point between the capsule 4 and the sleeve 1 there is a notch point 5 from which the capsule 4 detaches northwest 7 when the powder in space 3 explodes. The bullet 7 is smaller in diameter than the caliber of the weapon, whereby the capsule 4 guides it through the grooves of the weapon. When the bullet 7 with its capsule 4 comes out of the barrel of the weapon, the tabs 6 of the capsule 4 pop open under the influence of centrifugal force and cause the capsule 4 to detach from the bullet 7 and decelerate rapidly under the influence of air resistance.

It is essential in the invention that the capsule 4 and the sleeve 1 are made in one piece in one operation, whereby the total cost of the cartridge is substantially reduced. A particularly cost-effective cartridge is obtained when the capsule 4 and the sleeve 1 are made of plastic by injection molding. However, the invention is not limited to the use of a particular manufacturing material. The invention can also be used in ammunition for larger-caliber weapons such as howitzers.