RU2598257C1 - Capsulated case for rifled and smooth-bore cartridges for combined guns with replaceable pairs of shafts - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to production of capsulated shells to threaded and smooth-bore cartridges and can be used for production of said cartridges. Capsulated shell includes metal cap with pressed into it with ignition compound of impact action coated with sealing membrane, and inserted inside it a three-lobed domed anvil, pressed by its top to sealing membrane, and by its base to annular protrusion or a capsule seat of shell, or metal shell, located in capsule seat of shell around metal cap. All geometrical dimensions and mark of metal of metal cap, mark, mass of priming composition of impact action and configuration of press-fitting of priming composition of impact action are same as for rifled cartridge, and for smooth-bore cartridge with both metal and plastic or paper shell. Design of capsulated plastic or paper shell comprises metal shell of detonating cap in form of thin-walled cylinder with flange at end of cylinder with bending cylinder walls at other end face by 180° inside with a radius of 0.1-0.15 mm more than half thickness of wall, and cylinder length is selected so that three-wall dome anvil with its base is located in collar of cylinder end.

EFFECT: technical result consists in creation of a unification design of capsulated shell for rifled and smooth-bore guns for combined guns with replaceable pairs of shafts with same primer initiation sensitivity to impact gun striker.

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Description

The invention relates to the production of capsule shells for rifled and smooth-bore cartridges and can be used for the production of these cartridges.

Known encapsulated plastic or paper sleeve for smooth-bore cartridges, which were manufactured and used at the Iskra factory when testing smooth-bore cartridges to confirm the performance of the igniter capsule according to RF patent No. 2256148, which is selected as an analogue.

The disadvantage of the design of the encapsulated sleeve, known by analogy, is that it does not have a unification of the level of sensitivity to impact of the striker of a combined shotgun with interchangeable barrel pairs with the sensitivity level of the encapsulated sleeve for a threaded cartridge.

Known encapsulated sleeve for small arms ammunition, which is presented as part of a rifled cartridge in the article “IN POSSIBILITY AT SPEED. Modernization of small arms cartridges ”, Kalashnikov magazine, No. 5, 2015, which is selected for the prototype.

The disadvantage of the design of the encapsulated sleeve, known from the prototype, is that it lacks a unification of the level of sensitivity to impact of the striker of a combined shotgun with replaceable pairs of barrels with the sensitivity level of the encapsulated sleeve for a threaded cartridge.

This disadvantage of the encapsulated sleeve is very pronounced when shooting from the "gun-cartridge" complex, consisting of a TOZ-55 "Zubr" gun, which is equipped with three pairs of barrels; the first pair - both trunks are smooth, 12 gauge; the second pair - both rifled barrels, 9 mm caliber; the third pair is combined, one barrel is smooth, 12 gauge, the other is threaded, 9 mm caliber and smooth-bore and rifled cartridges (Product catalog of Izhevsk Mechanical Plant, Izhevsk (electronic resource) http: || www.baikalinc. ru | catalog. Date of access 08.18.2015).

This “shotgun-cartridge" complex with interchangeable barrel pairs (two smooth 12-gauge barrels or two 9-mm grooved barrels) does not provide reliable firing when using well-known encapsulated sleeves, as at present for capsule sleeves of smooth-bore cartridges and for encapsulated rifled shells 9 mm caliber cartridges used igniter caps of significantly different sensitivity. For example, for an encapsulated sleeve of a 9 mm rifled cartridge, an KV-27 igniter capsule with a shock impact sensitivity of 1.075 J can be used, and for an encapsulated plastic or paper sleeve of a smooth-bore cartridge, an KV-22 capsule igniter with an impact sensitivity of 0.307 J. T can be used. .e. the discrepancy in the sensitivity of the encapsulated sleeve to the impact of the striker of a combined rifle with interchangeable barrel pairs three times. In this case, the mainspring located in the combination shotgun will either be too powerful for the KV-22 primer or when setting its power to KV-22 is too weak for the KV-27 primer. In this case, it is impossible to achieve at the same time the normal operation of the trigger mechanisms to initiate the igniter capsule in the encapsulated sleeve for both the rifled cartridge and the smooth cartridge. Due to the difference in sensitivity of the capsule shell of these cartridges, the manufacturers of these combined rifles are forced to seek a balance between misfires on some cartridges and penetration of igniter caps on other cartridges.

The aim of the invention is the creation of the same design of an encapsulated sleeve for a rifled and smooth-bore cartridge for combined rifles with interchangeable barrel pairs, having the same sensitivity of initiation of the igniter capsule to the impact of the shotgun.

The task to create a new design of an encapsulated sleeve is solved by the fact that all the geometric dimensions and grade of the metal of the metal cap, grade, weight of the ignition composition of the impact action and its configuration of pressing it in are identical for both the threaded cartridge and the smooth-bore cartridge with both metal and with a plastic (or paper) sleeve, while the design of the encapsulated plastic or paper sleeve contains an additional shell of the igniter capsule in the form of a thin-walled about a cylinder with a flange at the end of the cylinder with a bend of the cylinder wall from the other end to 180 ° inward with a radius of 0.1-0.15 mm greater than half the wall thickness of the cap, and the length of the cylinder is chosen so that the three-petalled domed anvil with its base rests on the inner bending the end of the cylinder, as is done in the sleeve, known by analogy.

In fig. 1 shows the design of an encapsulated sleeve known in the prior art. The design of this encapsulated sleeve consists of: a sleeve 1 with a capsular socket 2; a metal cap 3 with a shock-absorbing composition of impact action 4 pressed into it, covered with a sealing membrane 5; three-petalled domed anvil 6; 7 - a special annular protrusion at the bottom of the capsule socket.

In fig. 2 shows the design of an encapsulated plastic or paper sleeve for a smoothbore cartridge, known by analogy.

The design of this encapsulated sleeve consists of a sleeve 1 with a capsular socket 2; a metal cap 3 with an impact composition 4 pressed into it, covered with a sealing membrane 5, a three-leaf dome-shaped anvil 6, an additional shell of the igniter 7 with an annular protrusion 8.

From the analysis of the designs of capsular shells shown in Fig. 1 and fig. Figure 2 shows that they contain the same unit: a metal cap 3 with a shock-absorbing composition 4 pressed into it, covered with a sealing membrane 5 and a three-leaf dome-shaped anvil 6, which is responsible for initiating the igniter capsule upon impact of the shotgun and for sensitivity primer for striking a shotgun.

In fig. 3 shows the design of this unit.

The block design consists of a metal cap 3 with a shock-absorbing composition 4 pressed into it, covered with a sealing membrane 5 and a three-petal domed anvil 6.

Obviously, if this block is made in different capsule shells for both threaded cartridges and smooth-bore cartridges with the same geometric dimensions and metal grades of the metal cap, with the same brand, the mass of the ignition composition of the impact action and with one and with the same configuration of pressing it into a metal cap, the task posed by this invention will be solved. In this case, the normal operation of the trigger mechanisms for initiating the igniter capsule in the encapsulated sleeve both for the rifled cartridge and for the smooth cartridge will be ensured simultaneously. The trigger mechanisms of the combined shotguns will be set to one energy mode of striking the striker on the encapsulated sleeve and there will be no cases of misfires on some cartridges and penetration of igniter caps on other cartridges.

The efficiency of this invention is confirmed by experiments and the publication of the article “IN SPEED AT SPEED. Modernization of a cartridge for small arms ”, Kalashnikov magazine, No. 5, 2015

Claims (1)

An encapsulated sleeve for rifled and smooth-bore cartridges for combined rifles with interchangeable barrel pairs, containing a metal cap with an impact-impact composition pressed into it, covered with a sealing membrane, and with a three-leaf domed anvil inserted inside it, with its base pressed against its top with a sealing - to the annular protrusion of either the bottom of the capsular socket of the sleeve, or the metal shell located in the capsular socket of the sleeve ug of a metal cap, characterized in that all the geometric dimensions and grade of the metal of the metal cap, mark, mass of the ignition composition of the impact action and the configuration of the press-fit of the ignition composition of the impact action are the same for both the threaded cartridge and the smooth-bore cartridge with both metal and plastic or a paper sleeve, wherein the design of the encapsulated plastic or paper sleeve contains a metal shell of the igniter capsule in the form of a thin-walled cylinder Indra with a flange at the end of the cylinder with a bend of the cylinder wall from the other end to 180 ° inward with a radius of 0.1-0.15 mm greater than half the wall thickness of the cap, and the length of the cylinder is chosen so that the three-petalled domed anvil with its base rests on the ring ledge end of the cylinder.

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