RU2574501C1 - Compact firearm - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: compact gun comprises the barrel, forestock, box with cartridges, lockwork with pull-off and trigger integrated in a single assy. The latter is provided with the tactical and pistol handles. The trigger is articulated with the breech frame base and engaged with firing gear via the link arranged from the left of vertical plane extending through the breech frame lengthwise axis. The forestock represents a structure with flute-like body with Picatinny rails arranged at the lateral and lower outer surface and meant for attachment of tripod, tactical handle and extra appliances for fire.

EFFECT: decreased weight and sizes, higher efficiency.

1 dwg

Description

The invention relates to weapons technology and is a small weapon intended for use in confined spaces, when it becomes necessary to use small arms, but with the power of regular weapons, and can also be used in robotic systems.

One of the main requirements for such samples of small arms is to reduce weight, dimensions, increase the manufacturability of production.

Known multiple weapons in which the box with cartridges is located above the barrel, the cartridges in the box are slanted and fed back (GB patent GB 191516038 (A) - 1919-03-27).

A disadvantage of the known small arms is the limited capacity of the box, low reliability, due to the high probability of jamming of the cartridge. In addition, placing the store in a known device makes the barrel heavier and makes shooting difficult.

Also known is a multiple-charge weapon (GB patent GB 127278 (A) - 1919-06-05) containing a barrel, a butt, a trigger mechanism and a box with cartridges, located below the barrel outside the section of the input window of the receiver and made in the form of a semicircle.

A disadvantage of the known device is the limited capacity of the box, low reliability due to the high probability of jamming of the cartridge. In addition, placing the store in a known device makes the barrel heavier and does not allow balancing the weapon in the longitudinal direction, which makes it difficult to use.

As an analogue adopted manual landing machine gun (patent RU No. 2198369, IPC F41C 7/00, F41A 21/32), containing a barrel with a receiver, a gas mechanism tube, ammunition magazine, a sight with a front sight, a firing handle, a muzzle device, bipod, forend, made under the barrel, with the advance forward of the gas chamber, the muzzle device is made in the form of a two-chamber system having compensation and slit-like openings, and the chamber of the muzzle brake containing slit-like openings is made inside the chamber of the flame arrester.

The disadvantage of this small arms modular design is the lack of the ability to install additional devices for firing, such as a bipod, a flashlight, a collimator sight, etc.

As a prototype adopted multiply weapons (patent RU No. 2507463, IPC F41A 9/38, F41A 9/79, F41C 33/06, F41A 11/00) containing a barrel, a trigger mechanism and a box with cartridges, located below the barrel and offset relative to the central cross section of the input window of the receiver, the box is made with tape, the links of which ensure misalignment of the cartridge in the outlet of the box and the entrance window of the receiver, and is fixed at an angle to the specified plane of the central cross section of the input window of the receiver, equal to the allowable clarity, the type of the tape, is capable of adjusting the angle of inclination to the plane of the cross-sectional lentopriemnika input window.

The disadvantage of this small arms modular design is the lack of the ability to install additional devices for firing, such as a bipod, a flashlight, a collimator sight, etc.

The aim of the present invention is the creation of small-sized small arms with the combat characteristics of a standard model, having a well-developed technological structure with expanded functionality and not requiring significant production costs, as well as improving the operational and operational characteristics of the weapon (reducing weight and dimensions, increasing reliability and manufacturability) using attachments.

Improving the functional and operational capabilities of small arms is achieved by a rational arrangement of elements with the widespread use of standardized nozzles that are rigidly fixed to the forend while striving to lighten the weight of the latter.

At the same time, with the implementation of this technical solution, small-sized small arms have the following advantages: when the trigger mechanism is displaced behind the pistol grip, the total length of the machine gun is significantly reduced, while the length of the barrel, and therefore the effective power of the weapon, remains unchanged. In addition, the weapon in this arrangement has practically no recoil arm, which increases the accuracy of fire in automatic fire mode. As a result, the scheme allows you to get the most compact and at the same time powerful automatic weapons for fighting in urban environments and in confined spaces.

Achieving a reduction in the size of the weapon, improving its quality characteristics and ergonomics.

The solution to this problem is achieved by the fact that in small arms containing a barrel, a box with cartridges located below the barrel, offset from the central cross section of the input window of the receiver and fixed at an angle to the specified plane of the central cross section of the input window of the receiver, equal to the allowable misalignment of the type of tape used providing the ability to adjust the angle of inclination to the plane of the cross section of the input window of the receiver, trigger mechanism with a trigger trigger, assembled into a single module, equipped with tactical and pistol grip, the trigger is pivotally attached to the trigger in the base of the receiver, connected to the trigger mechanism by means of a rod that transfers force to the trigger trigger in a “pulling pattern” located to the left of the vertical the plane passing through the longitudinal axis of the receiver, the forend is made in the form of a structure having a groove-shaped body, Picatinny rail is placed on the side and lower outer surfaces of the forearm, serving for mounting bipods, tactical grip and additional devices for firing.

Thus, the technical result expected from the implementation of the invention is to expand the functionality of the existing small arms, while ensuring the transition from a traditional layout to a rational weight distribution of weapons, which allows firing from various positions in extreme conditions while improving comfort, reliability and accuracy firing.

Small-sized small arms contain subassemblies of the standard model of small arms (Fig. 1): barrel 1, receiver 2 with butt pad 3, trigger mechanism (not shown in Fig. 1) with trigger 4 and trigger (trigger for one integral with the trigger and can interact with it through the intermediate lever), the trigger guard 5, the bolt (not shown in Fig. 1), the box with the machine gun belt 6, the tactical handle 7, the forearm 8 and the bipod 9.

The functions of the forearm 8 are expanded due to the possibility of installing and mounting on the side guides of Picatinny rail 10 additional devices that increase the aiming speed and accuracy of fire, which improves the operational properties of the weapon as a whole.

The forearm 8 of the small arms is a gutter-shaped body, on the side and lower outer surfaces of the forearm 8 there are tides (guides) that copy Picatinny rail 10, which serve to fasten the bipods 9 of the machine gun, as well as additional shooting devices and act as stiffeners. To cool the barrel 1, passing inside the forearm 8, on the lateral and lower surfaces of the forearm 8 there are made through technological holes of round and oval shapes, reducing the mass of the forearm 8, providing air circulation, with convective cooling of the barrel 1. The receiver 2 is equipped with a trigger attachment point connected to the trigger mechanism by means of a traction that transfers the force to the sear of the trigger mechanism according to the “pulling pattern” located to the left of the vertical plane passing through the the axis of the receiver (not shown in Fig. 1). On the forend 8 there are guides (Picatinny rail 10) for fastening standardized devices. The tactical handle 7 and the bipod of the machine gun 9 are fastened to the lower guide via the bracket 11 for ease of shooting. On the receiver 2 there is a tide with a threaded connection for fastening the pistol grip 12. The presence of the grip 7 provides a convenient and stable holding of the weapon and prevents the displacement of the weapon during firing, preventing the fingers and palm of the hand from being burned with the forearm heated during heavy shooting. On the side guides of the Picatinny rail 10, a laser designator or lamp is installed. On the lid of the receiver 2 mounted face stop 13. On the handle of the transfer of the machine gun mounted Picatinny rail 14 for installation of a collimator sight 15.

The forend 8 is fixed on the weapon with regular seats: on the one hand and guides made on the barrel 1.

The butt of the weapon is made in the form of a butt pad 3, mounted on the shank of the receiver 2 with screws (not shown in Fig. 1).

The technical result expected from the use of the invention is:

- reducing the dimensions of weapons while maintaining the length of the barrel;

- the ability to conduct targeted shooting at various positions of the shooter;

- reducing the time of opening fire, reducing the time to manufacture for firing due to the close to the shoulder center of mass of the weapon, which simultaneously improves the controllability of the weapon and reduces the aiming time;

- increasing the effectiveness of fire from unstable positions;

- increase the rate of transfer of fire;

- improving the convenience of working with weapons in cramped conditions (transport, facilities, etc.).

Thus, the proposed structural layout of small arms and their associated parts, combining manufacturability, compactness, ease of manufacture, allows for high reliability of the machine gun in conditions of various pollution at the level of the best samples (PKM, PKP).

Having fulfilled the full resource on all tested samples, the layout scheme of small arms had no breakdowns and failures, providing the new machine gun with smaller dimensions and weight in comparison with the standard machine guns of the PKP and PKP.

In this case, in the case of modernization without changing the parameters of the barrel, the length of the weapon decreases by about 25%, in addition, accuracy increases when firing in bursts by eliminating the excess of the axis of the barrel channel and the axis of the butt firing to the weapon, the axis of the barrel channel 1 and the butt plate 3 are on the same lines. Another important factor is the ability to correctly weight the weapon and move its center of gravity closer to the shooter.

Claims (1)

Small-sized small arms containing a barrel, a box with cartridges, located below the barrel, offset from the central cross section of the input window of the tape receiver and fixed at an angle to the specified plane of the central cross section of the input window of the tape receiver, equal to the allowable misalignment of the type of tape used, which makes it possible to adjust the angle of inclination to the plane of the cross section of the input window of the receiver, trigger mechanism with the trigger and the trigger, assembled in a single a module, characterized in that the single module is equipped with tactical and pistol grips, a trigger connected to the trigger mechanism pivotally connected to the trigger mechanism at the base of the receiver, transmitting force to the trigger sear in a “pulling pattern” located to the left of the vertical plane passing through the longitudinal axis of the receiver, the forend is made in the form of a structure having a groove-shaped body, Picatinny rails are placed on the side and lower outer surfaces of the forearm, sl to-containing mounting bipod, tactical handles and optional accessories for the shooting.

Images