RU3032U1 - CARTRIDGE FOR HUNTING GUNS - Google Patents

Abstract

A cartridge for hunting rifles containing a powder charge placed in a sleeve with a bottom and an igniter capsule installed in the bottom capsule socket communicated by the ignition hole with the cavity of the cartridge, characterized in that the capsule socket is lined with a metal sleeve with a central hole over the entire mating surface with the capsule igniter coaxial to the bottom firing hole, and the ratio of the bottom thickness to the depth of the capsule socket corresponds to 1.75 - 2.0, and the ratio of the inner diameter of the metal sleeve to the diameter e the central opening is 1.9 -2.1.

Description

CARTRIDGE OF DYA HUNTING GUNS

The utility model relates to ammunition and can be used for cartridges for hunting and sporting rifles.

Known cartridges containing a sleeve with a bottom of non-metallic material for placement of a powder charge in it. The bottom and the adjacent part of the sleeve are faced with metal. A capsule nest is made in the center of the bottom for placement of an igniter capsule in it, communicated with the cartridge cavity by the firing hole. For example, RBVD cartridges. 773875.001 012, type OSH (hunting, paper, under KB Zhevelo); OSH (hunting, paper, under the centro); SOP (sports, hunting, plastic), calibers 12, 16, 20 and 28 mm.

As the closest analogue to the proposed utility model, a cartridge for hunting rifles, such as a Winchester, in which a capsule nest with an ignition hole in the bottom hole; made to install KB type Zhevelo (see figure 1).

The part of the socket in contact with the shoulder of the carbur-igniter is lined with a metal shell. The bottom is made of insulating material. The main cylindrical part of the igniter capsule is located along the entire height of the ignition hole in the bottom. When making the nest with the minimum tolerances - (8-1) mm, and the diameter of the igniter capsule with the maximum tolerances - 7.85 mm, a part of the capsule shell is extended from the ignition hole into the inner cavity of the sleeve with charge. When the capsule is triggered, flaring occurs, an increase in the diameter of the capsule (5.67 mm) and, at the same time, violation, crushing

j -. J: 5. ; rV -. . the diameter of the ignition hole (5.55 mm) in the insulating easily deformable material, which makes it difficult to remove the fired igniter caps from the socket, and reuse the cartridge sleeve. The technical task posed is to increase the reliability of operation and operational characteristics. The specified technical problem is solved in that in the cartridge containing the powder charge placed in the sleeve with the bottom and the igniter capsule installed in the bottom capsule socket communicated by the ignition hole with the cavity of the sleeve, according to the utility model, the capsule socket on the entire mating surface with the capsule is the igniter is lined with a metal sleeve with a central hole coaxial to the bottom firing hole, and the ratio of the bottom thickness to the depth of the capsule socket corresponds to 1.75-2, and the ratio of the inner diameter is Allic felts to the diameter of its central hole is 1.9-2.1. A positive result obtained by implementing the utility model is to increase the reliability of the cartridge operation (0.995 with a confidence level of 0.8), to increase operational characteristics, and it is easier to simplify the operation of removing residues of a fired igniter from the cartridge case, the multiplicity increases (up to 8 times ) reuse of cartridge cases for hunting and sports rifles. The capsule socket may be lined with a separate sleeve or sleeve made integrally with the lining of the metal casing of the outer surface of the sleeve and the bottom. The technology for the specified manufacture of the cartridge case has been developed, tests of the pilot batches have been carried out with positive results, which allows us to consider

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muscular applicability.

Compared with the closest analogue, the proposed utility model is distinguished by the performance of a metallized capsule nest in the bottom of the sleeve in contact with the entire surface of the igniter capsule, by the ratio of the bottom thickness and the depth of the capsule nest, as well as by the ratio of the diameter of the metal sleeve to the diameter of its central hole, causing the formation of force fire, the igniter capsule, the ignition of the powder charge and the deformation of the mother bottom in the boundary layer with the capsule socket, which allows l the proposed utility model meets the criterion of novelty.

The essence of the proposed utility model is that the entire capsule is placed in | 1 lsulnoy nest reinforced with a metal sleeve that preserves the layer of insulating, easily deformable material (cardboard, polyethylene) on the bottom from destruction adjacent to the igniter capsule. With existing, spent weighed portions of the composition of the igniter caps, the force of fire should be freely, without energy loss, transmitted through the ignition hole in the bottom to the powder charge of the cartridge. It was experimentally established that the bottom thickness (Hg) to the depth of the capsule socket (Hj) corresponds to 1.75-2, and the ratio of the inner diameter of the metal sleeve (D) to the diameter of its central hole equal to the diameter of the bottom bottom opening (%) is 1 9-2.1.

Since the igniter capsule is fully inserted into the capsule seat, the bottom material layer with a thickness of% -Hj perceives the action of the striking force of the striker during firing. In the case of a decrease in this thickness, and hence the ratio J i less than 1.75, thin

admit

ignition of the powder charge, as force of fire has a satisfactory stickiness only 1/4 of the distance from

capsule. With a decrease in the size ratio --- less than 1.9, due to an increase in the diameter of the ignition hole, the action of powder gases from the cavity of the sleeve during the burning of the main charge on the igniter capsule increases, the likelihood of gases breaking through the capsule socket into the breech of the gun increases. In addition, the permissible supporting platform for the capsule anvil is reduced, which should not be thrown into the ignition hole upon impact of the striker.

With an increase in the ratio - more than 2.1, the conditions for the passage of fire through the cross section of the ignition hole and the hole of the sleeve to the powder charge of the cartridge deteriorate, i.e. the contact surface of the flame particles with the powder grains of charge decreases. Removing the remains of the igniter capsule through the reduced Jig opening requires a special hard-hardened punch or sting.

Tests were carried out to determine the flammability of the powder charge with the expanded diameters of the ignition or central bore of the sleeve to the length of the force of fire on a standard instrument.

The results are shown in the table. TG S / IUU, O /

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The lining of the capsule bottom along the surface mating with the igniter capsule, with experimentally established size ratios, also led to an improvement in the extraction of KB residues from the nest, preservation of its internal dimensions for recharging, up to 8 times, which is an important criterion in international practice for the manufacture and operation of cartridges cartridges for hunting and sporting rifles. Work on the improvement of the cartridge was carried out by the applicant with the simultaneous development of an igniter capsule, which allows to save the bottom thickness of the existing cartridge, for which the applicant has filed an application for a patent of the Russian Federation. However, the proposed utility model, provided that the claimed combination of essential features is fulfilled, can be used for all standard cartridges.

The utility model is illustrated by drawings in figure 1 and figure 2.

Figure 1 shows the closest analogue, where a powder charge 3 is placed in the sleeve I with the bottom 2. In the bottom, in the capsule socket 4, communicated by the ignition hole 5 with the cavity of the sleeve, an igniter capsule (Zhevelo type) is placed b. The outer surface of the bottom and part of the capsule socket in contact with the shoulder 7 is lined with a metal clip 8. The core is made of cardboard or polyethylene.

Figure 2 shows the proposed cartridge, where the powder charge 3 is placed in the sleeve with the bottom 2. In the capsule socket 4, communicated by the ignition hole 5 with the cavity of the gize, the igniter capsule 6 is placed. The capsule socket is lined with a metal sleeve 7 over the entire mating surface with KB , which can be made integral with the metal sleeve 8. In the sleeve there is a central hole 9, coaxial and corresponding to the diameter of the ignition hole 5.

The ratio D | / D2 1.9 - 2.1;

Hg / Hj 1.75 - 2.1.

The igniter capsule is pushed fully into the capsule socket of the bottom of the cartridge, which is inserted into the barrel of a sports or hunting rifle. When firing, the striker strikes the center of the capsule, the critical section of the composition is compressed between the top of the anvil and the bottom of the capsule, its ignition. The force of fire through the central hole of the sleeve and the firing hole of the bottom is transmitted to the surface of the powder grains of the main powder charge of the cartridge and ignites it, throwing a buckshot or bullet from the barrel. After the cartridge is activated, the remaining KB is removed from the sleeve for recharging.

The proposed utility model increases the reliability of the cartridge and allows you to reuse it again.

A source of information

RBID.773875.001 SB4 012 SB NPF Azot, KZ of them:

RBID. 77.3875 001, 004, 008 - prototype.

b.

Claims (1)

A cartridge for hunting rifles containing a powder charge placed in a sleeve with a bottom and an igniter capsule installed in the bottom capsule socket communicated by the ignition hole with the cavity of the cartridge, characterized in that the capsule socket is lined with a metal sleeve with a central hole over the entire mating surface with the capsule igniter coaxial to the bottom firing hole, and the ratio of the bottom thickness to the depth of the capsule socket corresponds to 1.75 - 2.0, and the ratio of the inner diameter of the metal sleeve to the diameter e the central opening is 1.9 -2.1.