RU2776331C1 - Submachine gun - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: submachine gun comprises a receiver with a barrel, an assembled receiver cover, a buttstock, a fore grip with a Picatinny rail, an assembled bolt, a return mechanism, a magazine, a pistol grip, and a compensator muzzle brake. The magazine is straight and double-stack, made of a transparent material and installed on top of the barrel and the receiver. Cartridges are placed transversely to the centreline of the weapon. Cartridges are rotated by 90 degrees before being fed into the chamber. The return mechanism with two guides is located on the bore line. Two L-shaped spent case deflectors are installed on the receiver for releasing spent cases downwards. The submachine gun comprises a two-way fire selector fuse and a quick-release cocking handle.

EFFECT: expanded range of technical means.

1 cl, 11 dwg

Description

The invention relates to automatic small arms for engaging enemy personnel at medium and close combat distances, and can be used in combat operations where a sufficiently high rate of fire and relatively small overall dimensions are required for use in cramped conditions (for example, in trenches and buildings ).

Known submachine gun, which is made according to the scheme with a blowback and a progressively moving drummer, and a straightened butt. The magazine capacity has been increased to 100 rounds due to the use of a multi-sector magazine of three sectors and three rammers on the slide. To reduce the rate of fire with a relatively short stroke of the bolt, the bolt was held in the rear position and an additional striker stroke was used to turn the bolt off from a stop. At the same time, the drummer is used to reload the submachine gun. [2]

The disadvantages of this submachine gun are a high rate of fire, a small magazine capacity for a rate of 1250 rpm, which directly significantly reduces the accuracy of fire, a large length in a firing position, the inconvenience of using a left-handed sample and when firing from uncomfortable positions (due to ejecting the cartridge case to the right ).

A technical solution is known, implemented in the form of a submachine gun, in which the retarder stop is mounted on a rail with the possibility of changing its position on it in height to change the length of the retarder stroke and thereby adjust the rate of fire. The translator-fuse is made with the possibility of blocking the sear, and the trigger and balancer perform the functions of a shutter delay with a ledge for interacting with the store feeder and a ledge interacting with the sear to turn it and release the shutter. [3]

The disadvantages of this technical solution are the low initial velocity of the bullet due to the insufficient length of the barrel, the inconvenience of operating the left-handed sample and poor accuracy of combat when firing from uncomfortable positions due to the ejection of the cartridge case to the right, a large toss of the weapon due to the return mechanism located above the line of the bore.

Known submachine gun "Cedar", containing a receiver with a barrel, bolt, receiver cover, return mechanism, firing mechanism, butt. A trigger-type trigger mechanism is used, cartridges are fed from a double-row box magazine, and it is also equipped with a shoulder rest that folds over the receiver. [four]

The disadvantages of the submachine gun "Kedr" are when firing from this submachine gun only the cartridge 9 × 18 PM is used, for firing cartridges of increased power 9 × 18 PMM, the barrel chamber (spiral grooves) needs to be modified to reduce the speed of moving parts, insufficient reliability the firing mechanism of a submachine gun, which uses the tipping of the trigger over the dead center, as well as the inconvenience of using the left-handed sample and poor accuracy of combat when firing from uncomfortable positions (due to ejecting the cartridge case to the right).

The aim of the invention is to minimize these shortcomings and to create a submachine gun with a magazine mounted on top and along the barrel, ejection of the spent cartridge case down, with two-way controls, a return mechanism located on the line of the bore and equally convenient to use by all arrows.

The essence of the invention is as follows:

- the invention of a new model of individual small arms with a fundamentally new layout for supplying ammunition, ejecting a spent cartridge case and attaching a magazine;

- the operation of automation is carried out due to the free travel of the shutter using a return mechanism with two guides;

- an L-shaped double-row straight magazine with a capacity of 30 rounds is used, which is installed on top and along the barrel, while the cartridges in which, before being fed into the chamber, are turned 90 degrees (to the chambering line).

The invention, implemented in the form of a new sample of a submachine gun, which is illustrated by drawings: Fig. 1 - general view of the submachine gun; fig. 2 - main parts and mechanisms; fig. 3 - shop; fig. 4 - receiver assembly; fig. 5 - barrel with front sight; fig. 6 - receiver cover; fig. 7 - details of the shutter with a return mechanism; fig. 8 - return mechanism; fig. 9 - trigger mechanism; fig. 10 - work of parts and mechanisms: A - sending the next cartridge into the chamber, B - locking the barrel and pricking the igniter primer; fig. 11 - operation of parts and mechanisms: B - reverse stroke of the bolt with a spent cartridge case, G - extraction of a spent cartridge case.

The submachine gun (Fig. 2) consists of a receiver 1 with a barrel, a receiver cover assembly 2, a buttstock 3, a forearm 4 with a Picatinny rail, a bolt assembly 5, a return mechanism 6, a magazine 7, a pistol grip 8 and muzzle brake compensator 9.

Magazine (Fig. 3) - L-shaped, double-row, straight type, with a capacity of 30 rounds, mounted on top and along the barrel, which allows minimizing the dimensions of the weapon, the cartridges in which are rotated 90 degrees before being fed into the chamber. It is made of a transparent material, which allows you to control the presence of ammunition and consists of: a magazine body 10, a spring 11, a feeder 12, dummies of cartridges 13.

The receiver assembly (Fig. 4) consists of: a rectangular window for installing the magazine 14, two L-shaped reflectors of the spent cartridge case 15, grooves for attaching the receiver cover 16, grooves for the receiver cover latch 17, holes (on both sides of the receiver ) for the quick-release cocking handle 18, the shutter guide 19. Two L-shaped reflectors of the spent cartridge case 15 are placed on the receiver, allowing the cartridge case to be thrown down.

The barrel with a front sight (Fig. 5) consists of: a hook for attaching the store 20, a forearm retainer 21.

The receiver cover (Fig. 6) consists of: a quick-detachable mechanical sight 22, a magazine latch 23, a latch for attaching the receiver cover 24.

The details of the shutter with a return mechanism (Fig. 7) consist of: shutter mirror 25, ejector 26, ejector spring 27, ejector axis 28, rammer 29, grooves for reflectors 30, drummer 31, drummer pin 32, quick-detachable cocking handle 33, grooves for quick-detachable cocking handle 34, return mechanism 35. The cocking handle is quick-detachable, as it is mounted inside the bolt body with a spring-loaded latch and allows you to equally conveniently use the weapon both left-handed and right-handed.

The return mechanism (Fig. 8) consists of: a return spring guide with a butt plate 36, rods 37, return springs 38, a clutch 39. A feature of the return mechanism is the location on the line of the barrel bore, and the presence of two guides with return springs, which reduces the recoil and minimize the impact on the shooter, which in turn reduces the growth of weapons.

The trigger mechanism (Fig. 9) consists of: a trigger 40, a trigger 41, a sear 42, a sear spring 43, a fuse-translator of fire 44. both left-handed and right-handed.

The submachine gun works as follows.

To fire a shot, it is necessary to set the type of fire with the fuse-translator of fire 44.

To load the submachine gun, it is necessary to insert the loaded magazine 7 into the receiver window 14 up to the magazine lock latch 23, pull the bolt 5 back by the quick-release cocking handle 33 and release it. In this case, the shutter 5 by the rammer 29 delivers cartridges from the magazine 7 to the chamber.

With a single fire. When the trigger 40 is pressed, by interacting with the sear 42, the trigger 41 is released, which passes between the springs of the return mechanism and hits the drummer 31. The drummer 31 breaks the primer-igniter of the cartridge. After the shot, the ejector 26 removes the spent cartridge case 46 from the chamber 47, and as it advances, it hits two L-shaped reflectors of the spent cartridge case 15, as a result of which it is thrown down. At the same time, the shutter 5, having reached the extreme rear position, cocks the trigger 41, which is held by the sear 42, and the shutter 5, under the influence of the return mechanism 6, returns to the extreme forward position, removing the next cartridge from the magazine 7 with the rammer 29, and sending it into the chamber 47. To fire the next shot, you must again pull the trigger 40.

During automatic fire, when the trigger 40 is pressed, the sear 42 is sunk, and the trigger 41 is not held when it interacts with the bolt 5. After the shutter 5 reaches the extreme forward position, the trigger 41 interacts with the drummer 31. When the trigger 40 is released, the trigger 41 stops on the sear 42. When the trigger is pressed, the cycle of operation is repeated.

Thus, this invention implemented in the form of a submachine gun differs from existing domestic samples in a fundamentally new layout for supplying ammunition, ejecting a spent cartridge case and attaching a magazine. The operation of automation is carried out due to the free movement of the shutter using a return mechanism with two guides, an L-shaped double-row magazine of a direct type with a capacity of 30 rounds is used, which is installed on top and along the barrel, while the cartridges in it are turned 90 degrees before being fed into the chamber ( to the delivery line). The submachine gun can use 9mm cartridges from PM and APS pistols.

List of sources used

1. Operating manual for 5.45 mm Kalashnikov assault rifle AK-12 (6P70).

2. RF patent RU No. 2125221 C1, IPC F41C 7/00, publ. 1999

3. RF patent RU No. 2355985 C2, IPC F41C 3/00 F41A 5/02 F41A 3/12. publ. 2009

4. RF patent RU No. 2205345 C2, IPC F41C 7/00. publ. 2003

5. Encyclopedia of modern weapons and armored vehicles, v. 2, p. 317-318, ed. Polygon ACT, 1997, St. Petersburg.

Claims (1)

A submachine gun consisting of a receiver with a barrel, a receiver cover assembly, a buttstock, a forearm with a Picatinny rail, a bolt assembly, a return mechanism, a magazine, a pistol grip and a muzzle brake-compensator, characterized in that it contains a mounted on top and along the barrel L-shaped double-row straight magazine with a capacity of 30 rounds, the cartridges in which are rotated 90 degrees before being fed into the chamber, a return mechanism with two guides located on the bore line, two L-shaped reflectors of the spent cartridge case on the receiver, a double-sided fuse - fire translator, quick-detachable cocking handle.

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