RU2483266C2 - Design of revolver automatic cartridge-free carabine with horizontal detachable box-shaped magazine - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: design of a revolver automatic cartridge-free carabine with a detachable horizontal box-shaped magazine comprises a revolver frame with a barrel, a three-cavity drum and a return spring installed into the fixed frame of the device body. Into a horizontal magazine neck there is a rotary geared shuttle installed with a tray for reception of cartridges and as a pair to the shuttle gear, a geared rack of single-sided direction driven by the movable revolver frame, providing for shuttle rotation by 1/4 turn, necessary to transfer a cartridge and matching coaxially with the drum cavity.

EFFECT: increased capacity of a magazine and automatic firing.

4 cl, 5 dwg

Description

The device relates to small arms, the purpose of which is to use a revolving system as an automatic weapon capable of firing both conventional and new shellless ammunition, the use of which in traditional automatic systems is not possible.

In this proposal, it is possible to supply ammunition from a horizontal box-shaped detachable cartridge magazine with a straight cartridge case, of practically different sizes, with appropriate replaceable drums, switching the vertical ammunition supply to the horizontal one will double the capacity of the magazines, but, most importantly, eliminate interference, interfering with safer shelter when firing back in a “prone position”.

An analogue of this proposal is an assault rifle of the German company Heckler and Koch G11, using cartridgeless cartridges from a horizontal integral store / cm. two-sheet application. The disadvantage of this system is the non-metallic combustible liner body, which leads to the possibility of spontaneous combustion in extreme combat situations. Another disadvantage is that the high initial velocity of the bullet is achieved by excessive heating of the barrel, which means its rapid wear, in addition, the radiated heat is a good target for infrared sights. You can also note the relatively large weight of the rifle, as well as an integral store that requires a lot of time to equip it.

Famous Belgian "project-90" - P90 - a machine with horizontal supply of ammunition from a disposable plastic transparent magazine with ammunition across the barrel. Cartridges under the action of a spring enter a helical inclined frame located in the upper part of the magazine, with the help of which they are deployed along the axis of the chamber, and then are sent by a bolt. The disadvantage is a disposable plastic store / For more details, see "Armament of the elite troops." 2002 /.

The prototype of this proposal can serve as a self-loading revolving system, as set out in the application dated December 22, 2010, No.20152597, which is an improved revolving system with ammunition coming from a vertical magazine, providing semi-automatic continuous fire. This possibility appeared due to the fact that the turret frame with the barrel and drum are located in the corresponding frame of the grenade launcher, where under the action of the return spring on one side and the recoil when fired from the opposite side, the reciprocating movement occurs, in which one of the chambers is capture (when creeping) of the ammunition coming from the store / cartridge /, and is sent back counter.

When returning to its original position, the axial screw rod of the drum, passing through the ratchet, rotates the drum by 1/3 of the turn, while the chamber with the ammunition is coaxial with the barrel and trigger mechanism / trigger /. After the first shot, the system is in semi-automatic mode. The ejection of the sleeve / capsule block / is carried out by the powder gases entering through the inter-chamber hole of the drum during the subsequent firing.

The disadvantage of this prototype is the vertical supply of ammunition and the inability to fire in automatic mode, in bursts, there is no fire protection system.

The device of the turret rifle with a detachable horizontal magazine (hereinafter referred to as the CARBIN) / consists of a fixed frame located in the carabiner case - 15, Fig. 1, in which a movable turret frame with a three-chamber drum - 9, and with a barrel conical with longitudinal grooves - 19, and spring-loaded from the side of the trigger mechanism / trigger / return spring - 8. The elongated axis of the three-chamber drum is a screw rod - 6, penetrating the ratchet device - 7, the end face of the screw rod contacts the trigger - 8.

Two horizontal mouths / receivers / - 5 are attached in the lower part of the carbine, for installation of box magazines - 1. In the necks / receivers / mounted rotary shuttles - 4, containing spring-loaded trays - 14. On the common axis there is a wheel, a quarter of the circle of which consists of teeth intended for coupling with a gear rack - 3, the drive of which is a revolving movable frame. In the turret frame, a spring-loaded clamp of a three-chamber drum is installed. There are 13 grooves in the walls of the drum chamber from the side of the barrel channel, they are designed to divert part of the powder gases for the extraction of cartridges, for this purpose, if necessary, also serves as a semi-automatic spring-loaded ramrod - 23, a counter is installed in the handle of the carbine to control the consumption of ammunition in contact with the USM - 22. The carbine handle has two holes - 20, for attaching special straps not only for wearing the carbine. They can serve instead of the butt, using the "guy" when shooting instead of the shoulder pressure.

In a preliminary design, the carbine is shown in longitudinal section (Fig. 1) and in the transverse axis A-A (Fig. 2). Figure 5 shows a sectional shellless ammunition consisting of a capsule compartment-1A, the head detachable compartment-1b, the core-1B.

The proposed technical innovation of the proposed device is the use of a conical barrel with longitudinal rifling, due to which the head compartment - 1b, dual-pulse munition (Fig. 3), its tail part, at the moment of passage through the conical part of the bore, acquires a swept shape, since there is no rotational moment - deviation of its flight due to drift is excluded, the accuracy of the fire increases, while penetrating ability (of a shell, armored core) increases due to the additional mass of the shank g Karlovna compartment.

The second difference is the use, in this device, of a horizontal store - (1), which will significantly reduce the risk of vulnerability of the fighter, as well as the store, by fire from the enemy’s side, when fighting in a prone position, besides, the store’s capacity can be increased twice. This is achieved by the fact that in the horizontal neck of the device there is a rotary shuttle - (4) with a tray for receiving ammunition, while the ammunition is fed into the drum chamber by turning the shuttle by 90 degrees, for this, a gear wheel is installed on the axis of the shuttle, a pair of which is a gear rack - (3), with a drive in the face of a revolving frame (9).

The third difference from the prototype is the possibility of firing in bursts, for this a delay with a spring is installed in the carbine device (11), while its interaction with the lock - 10 blocks the possibility of the trigger being pulled - (8), until the axis of the drum chamber coincides with the hammer trigger mechanism (trigger).

The fourth difference is the ability to replace the barrel and drum if necessary, the transition from cartridgeless ammunition (with commensurate dimensions) to a conventional cartridge, while the extraction of the shell is carried out by the same method using the removal of powder gases through inter-chamber openings in the drum - (13) from the subsequent shot. When transferring weapons to normal mode, as well as in case of misfire, the drum is released from the cartridges (ammunition) using a semi-automatic ramrod.

To achieve the possibility of continuous fire, it is enough to provide the rifle with an additional horizontal neck, screw rod of two oppositely directed turns (6), and reversible ratchet - (7).

There is a place in the handle of the carabiner device for installing a counter contracting with the USM; its display will help visually control the consumption of ammunition. There are two openings - 20 for attaching a special belt for firing when pulling weapons.

The list of positions:

1. A box-shaped wearable store is ready,

2. The handle of the carabiner in readiness,

3. Toothed single-sided rack,

4. Gear shuttle with a spring-loaded tray - one gear for two shuttle,

5. Magazine neck with gear shuttle - two necks when reversing,

6. The helical axial rod of the drum,

7. Ratchet reversible,

8. Trigger

9. Turret frame with a drum,

10. Drum retainer,

11 keying delay with spring,

12. Fuse,

13. The inter-chamber hole in the drum,

14. The spring of the shuttle tray,

15. The carabiner case is represented from two mirror-opposite halves articulated along the "sighting line" made of sheet steel by cold stamping,

16. The mainspring,

17. The sear with the spring,

18. Return spring,

19. Conical trunk with longitudinal rifling,

20. Holes for attaching the belt when firing to squeeze.

The operation of the device carbine revolving automatic sleeveless with a horizontal detachable box magazine.

In order to bring the device / further Carabiner / into combat readiness, two methods are necessary.

At the first reception, move the box magazine (1) from position No. 1 to position No. 2. This will open the store / Fig.3/.

At the second reception, pull the handle (2) all the way back. In this action, the gear rack (3), moving together with the turret frame, will engage with the shuttle gear (4) located in the magazine neck (5) and turn it 1/4 turn - the result is shown in Fig. 4 - with which cartridge from the store moved to the shuttle tray.

Given that the working section of the gear rack is limited to 1/4 of a turn, the shuttle, freed from clutch with the teeth of the rack, under the action of its own spring, entraining the cartridge, will return to its original position, in which the axis of the cartridge is aligned with the axis of the drum chamber (yig. 2 ) Camora in the right position.

In the direction of pulling the handle back, when meeting with the stop (21), the cartridge will be sent to the chamber of the drum chamber, and the helical axial rod (6), passing through the ratchet gear (7) interacting with it, will release it and cock the trigger with its end part (8 )

Moving in the opposite direction, the rod engages the ratchet and, having the left screw, rotates the drum from left to right exactly 1/3 of a turn from one fixed position to the second, in which the cartridge moves into the turret frame (9) and is aligned with the axis of the barrel and shock trigger mechanism (trigger).

In this case, the latch (10) will be in the hole of the drum, and its tail will be recessed flush with the turret frame, which will allow it to return to its original position, so that the axial helical rod unlocks the locking delay with the spring (11). In this position, the carbine is ready for automatic fire. To set the trigger in readiness, use the thumb of the right hand to move the fuse (12) forward to the “closed” position.

Ammunition consumption control is controlled by the luminous display of a contact counter installed in the handle of the carbine.

The need for a semi-automatic ramrod is due to the fact that the removal of the sleeve or capsule block / caseless version / occurs by means of the removal of part of the powder gases through the inter-chamber channel (13) at the time of the subsequent shot. When transferring weapons to normal mode, the chambers must be released manually, including with possible misfires.

Literature

1. The magazine “Shotgun. Weapons and ammunition. " Number 3. 1998 year

2. "Small arms." Directory. 2nd edition, 2009, Minsk.

3. The Great Encyclopedia of Weapons (BEO), 2008

Claims (4)

1. The device carbine revolving automatic sleeveless with a removable horizontal box magazine, consisting of a revolving frame with a barrel, a three-chamber drum and a return spring installed in a fixed frame of the device, characterized in that a horizontal gear neck has a rotary gear shuttle with a tray for receiving cartridges and as a pair to the gear of the shuttle gear one-sided rack, the drive of which is a movable turret frame, I provide turning the shuttle by 1/4 of the turn necessary to transfer the cartridge and align it coaxially with the drum chamber. 2. The device according to claim 1, characterized in that its design feature allows for the replacement of the barrel and drum under the necessary types of cartridges, including serving as an experimental system for the introduction of cartridge-free ammunition. 3. The device according to claim 1, characterized in that when using sleeveless ammunition, the mass of the bullet and the stability of its flight are achieved due to its own tail section, which allows the use of a smooth barrel, and therefore, increase the service life of the device. 4. The device according to claim 1, characterized in that the separation of the propellant in sleeveless cartridges into two charges reduces recoil when fired, which increases the accuracy of the fire.

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