RU2779775C1 - Belt-powered automatic weapon magazine - Google Patents

Abstract

FIELD: military technology.

SUBSTANCE: belt-powered automatic weapon magazine contains a body divided by vertical partitions into sections, in which a single cartridge belt consisting of movable links with shanks holding the cartridge case at the location of the groove is laid with vertical sections hanging along the back wall of each section, a neck fastened to the weapon, and, according to the number of sections, fixing nodes in the horizontal position of the cartridges of the vertical sections of the cartridge belt in the form of fixed on the back wall of the section, or on a carcass frame mounted on the back wall, at the location of the vertical sections of the tape, pairs of hooks with jaws in the form of recesses. One hook of each pair is installed at the place of the projectile part of the cartridge, and the other at the place of the cartridge sleeve, the profile of the hook recess for the projectile part is formed by conjugated arcs of two circles with centers lying on the same vertical axis.

EFFECT: ensuring the reliability of shooting.

6 cl, 4 dwg

Description

The invention relates to the field of armaments, namely to magazines for automatic weapons with belt feed.

Known store automatic weapons with tape power, containing a body for laying the cartridge belt in the form of linked links with cartridges, output window and fixed on the rear wall of the housing support at the end of the tape with the last cartridge (patent RU 2732680, application date: 17.03. 2020, published: 09/21/2020, Bull. No. 27).

In a well-known store, at a high rate of fire of automatic weapons with belt feed, significant fluctuations of the cartridge belt occur when it leaves the magazine, which can lead to damage to the cartridges or links of the cartridge belt and disruption of the automation.

The technical result of the invention is to ensure the reliability of firing by reducing vibrations and twisting during firing of the cartridge belt freely sagging in the magazine section.

The specified technical result is achieved by the fact that the magazine of automatic weapons with tape feed contains a body divided by vertical partitions into sections, in which a single cartridge tape consisting of movable links with shanks holding the cartridge case at the location of the groove is laid with vertical sections hanging along the rear wall of each section , the neck fastened to the weapon, and according to the number of sections, the fixing units in the horizontal position of the cartridges of the vertical sections of the cartridge belt in the form of a section fixed on the rear wall, or on a frame frame installed on the rear wall, at the location of the vertical sections of the tape of pairs of hooks with gaps in in the form of recesses, with one hook of each pair installed at the place of the projectile part of the cartridge, and the other at the place of the groove of the cartridge case, the profile of the recess of the hook for the projectile part is formed by conjugated arcs of two circles with centers lying on the same vertical axis, while the radius of the smaller encirclement the narrowness corresponds to the radius of the projectile part of the cartridge; the profile of the recess of the hook under the groove of the sleeve is formed by a recess under the shank of the link from the side of the rear wall and conjugated arcs of two circles with centers lying on the same vertical axis, while the radius of the smaller circle corresponds to the radius of the groove of the sleeve; arcs of circles forming the profile of the recess for the projectile part and for the groove of the sleeve are conjugated at the place where the vertical axis passes; the hooks of each pair following the upper pair of hooks are additionally provided with a guide platform that ensures the direction of the cartridge when entering the throat and exiting the throat, associated with a recess or recess for the link shank and located above the throat at an angle upwards to the rear wall.

In a belt-fed automatic weapon magazine, under the hook for the projectile part of the lower pair of hooks, a ledge with a length of at least 1.5 of the diameter of the projectile part of the cartridge can be made flush with the nose of the said hook, which prevents displacement of the projectile part of the cartridge towards the rear wall.

The guide pads of the hooks can be made on the outer surfaces of the hooks facing the openings of the underlying hooks.

It is desirable that the angle of inclination of the guide pad to the rear wall of the section is 55-65°, and the arcs of large circles forming the profiles of the recesses are made with a central angle of the arc of 55-65°, while the ratio of the radii of the smaller and larger circles for all hooks of the fixation unit must be selected from the range

R/r=1.3-1.6,

where

R is the radius of the larger circle,

r is the radius of the smaller circle.

The present invention is illustrated by drawings, which shows:

in fig. 1 - a magazine with a loaded cartridge belt, general view;

in fig. 2 - view A in Fig. one;

in fig. 3 - section B-B in Fig. 2;

in fig. 4 - section B-B in Fig. 2.

The magazine of automatic weapons with tape power contains a body 1, divided by vertical partitions 2 into sections. A single cartridge belt 3 is placed in the section, while the cartridge belt hangs along the rear wall of each section, forming a vertical section 4. The equipped cartridge belt consists of interlocked links that fix the cartridges to the sleeve with two pairs of legs and to the groove of the sleeve with a shank. The cartridge belt described above is known, for example, from patent RU 2505778, application date: 04/10/2012, published: 01/27/2014. Bull. Number 3.

To fix the cartridges of the vertical section of the tape in a horizontal position directly on the rear wall of each section or on the frame frame 5 fixed on the rear wall of each section, fixation units are installed, made in the form of pairs of hooks with openings in the form of notches. Pairs of hooks are installed along the rear wall of the section at a distance from each other equal to the pitch of the cartridge belt. One hook 6 of each pair is installed at the place of the projectile part of the cartridge, and the other 7 - at the place of the groove of the cartridge case. In order to hold the cartridges of the tape in the hooks before the start of firing, as well as to ensure the timely release of the cartridge tape during firing, the profile of the recess of the hook for the projectile part is formed by conjugated arcs of two circles with centers lying on the same vertical axis, while the radius of the smaller circle 8 corresponds to the radius of the projectile part of the cartridge, and the profile of the recess of the hook under the groove of the sleeve is formed by a recess 9 under the shank of the link from the side of the rear wall and conjugated arcs of two circles with centers lying on the same vertical axis, while the radius of the smaller circle corresponds to the radius of the groove of the sleeve. The arcs of circles forming the profile of the recess for the projectile part and for the groove of the sleeve are conjugated at the place where the vertical axis passes. The arcs of large circles 10, forming the profiles of the recesses, are made with a central angle of the arc of 55-65°, while the ratio of the radii of the smaller and larger circles for all hooks of the fixation unit is selected from the range

R/r=1.3-1.6, where

R is the radius of the larger circle,

r is the radius of the smaller circle.

To guide the cartridge when entering and exiting the throat, the hooks of each pair following the upper pair of hooks are additionally equipped with a guide platform 11, which is associated with a recess for the link shank and located above the throat at an angle of 55-65° upwards to the rear wall. Hook guide pads are provided, for example, on the outer surfaces of the hooks facing the openings of the underlying hooks.

Experimentally selected values of the central angle of large circles and the angle of the guide pad, as well as the range of the ratio of the radii of the smaller and larger circles, each individually or in combination, will additionally provide a technical result when using this invention.

The center of gravity of the cartridge in the cartridge belt is shifted from the point of coupling of the links towards the projectile part. Because of this, the tape cartridge located below the cartridge fixed in the lower pair of hooks is displaced by the projectile towards the rear wall of the section. In this case, the sleeve is displaced from the rear wall of the section. During firing, this position of the cartridges causes untimely release of the vertical section of the cartridge belt, which in turn can cause damage to the cartridge belt. To prevent such displacement under the hook under the projectile part of the lower pair of hooks, a ledge 13 is made flush with the nose 12 of the specified hook with a length of at least 1.5 diameters of the projectile part of the cartridge.

The belt-fed automatic weapons store works as follows.

When equipping the store, the vertical sections 4 of the cartridge belt 3 are inserted into the fixation nodes.

In the process of firing, the cartridge belt in the magazine section sags, forming a loop 14. The vertical section of the cartridge belt, fixed in the fixation nodes, reduces the length of such a loop, respectively, reducing oscillations and twisting of the cartridge belt. At the same time, the jaws of the hooks hold the vertical section of the cartridge belt and ensure the timely sequential exit of the cartridges of the tape from the fixation units, and the guide platform 11 additionally provides the desired exit angle of the cartridges.

Claims (16)

1. A belt-fed automatic weapon magazine, containing a body divided by vertical partitions into sections, in which a single cartridge tape consisting of movable links with shanks holding the cartridge case at the location of the groove is laid with vertical sections hanging along the rear wall of each section, a neck fastened with weapons, and according to the number of sections, the fixation units in the horizontal position of the cartridges of the vertical sections of the cartridge belt in the form of a section fixed on the rear wall, or on a frame frame installed on the rear wall, at the location of the vertical sections of the tape of pairs of hooks with gaps in the form of notches, and one hook of each pair is installed at the place of the projectile part of the cartridge, and the other - at the place of the groove of the cartridge case, the hook recess profile for the projectile part is formed by conjugated arcs of two circles with centers lying on the same vertical axis, while the radius of the smaller circle corresponds to the radius of the projectile part of the cartridge; the profile of the recess of the hook under the groove of the sleeve is formed by a recess under the shank of the link from the side of the rear wall and conjugated arcs of two circles with centers lying on the same vertical axis, while the radius of the smaller circle corresponds to the radius of the groove of the sleeve; arcs of circles forming the profile of the recess for the projectile part and for the groove of the sleeve are conjugated at the place where the vertical axis passes; the hooks of each pair following the upper pair of hooks are additionally provided with a guide platform that ensures the direction of the cartridge when entering the throat and exiting the throat, associated with a recess or recess for the link shank and located above the throat at an angle upwards to the rear wall. 2. The magazine of automatic weapons with tape feed according to claim 1, characterized in that under the hook for the projectile part of the lower pair of hooks, a ledge with a length of at least 1.5 of the diameter of the projectile part of the cartridge is made flush with the nose of the said hook, which prevents displacement of the projectile part of the cartridge towards the rear wall. 3. Automatic weapons magazine with tape feed according to claim 1, characterized in that the guide pads of the hooks are made on the outer surfaces of the hooks facing the gaps of the underlying hooks. 4. Automatic weapon magazine with tape feed according to claim 1, characterized in that the angle of inclination of the guide pad to the rear wall of the section is 55-65°. 5. The magazine of automatic weapons with tape feed according to claim 1, characterized in that the arcs of large circles forming the profiles of the recesses are made with a central angle of the arc of 55-65 °, while the ratio of the radii of the smaller and larger circles for all hooks of the fixation assembly must be selected out of range R/r=1.3-1.6, where R is the radius of the larger circle, r is the radius of the smaller circle. 6. Automatic weapon magazine with tape feed according to claim 1, characterized in that pairs of hooks are fixed at a distance from each other equal to the pitch of the cartridge belt.

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