RU9644U1 - FIREARMS - Google Patents

Abstract

A firearm containing a frame, a cartridge-feeding mechanism, a reloading mechanism, a trigger mechanism and a regular barrel with a side gas vent device, characterized in that it is equipped with an add-on barrel installed in the standard barrel of the weapon from the side of its muzzle, and the rear end of the insert barrel does not reaches the axis of the side gas outlet at a distance l≅0.5d + l, where d is the diameter of the side gas outlet device and l is the axial size of the easily deformable bullet.

Description

FIREARMS

The utility model relates to small arms, namely, automatic gas-fired firearms for firing both combat boenrinases and training boenrinases with easily deformable zeros. The utility model can also be used for physiological effects on offenders, producing a stopping effect on living targets without penetration into their bodies.

Known insertion barrel for smooth-bore weapons, containing a tubular body with external abutment surfaces. The corne has a chamber of a caliber of a smaller caliber of the main weapon’s matron, the guiding part of the barrel channel and the inlet cone part of the barrel, coupled with the natron (SU, copyright certificate No. 1623356, class F41 A 21/10, 1992).

This barrel is designed for single-shot hunting weapons. In case of using it in automatic firearms, it is required to use a special cartridge-feeding mechapism, different from the standard one, but the ammunition of a smaller caliber, which greatly complicates the design of the weapon. In addition, the impulse of the action of powder gases on the bottom of the liner or the piston of the side gas exhaust device when fired by a smaller caliber ammunition may not be sufficient to trigger automatic weapons.

Known automatic firearms containing a frame, a cartridge-feeding mechanism, a reloading mechanism, an impact-snorkeling mechanism and a barrel with a side gas vent device (Manual on Small Arms. Military Publishing House of the USSR Ministry of Defense. M.1973.-671 p.)

This firearm (Kalashnikov assault rifle) is designed for firing live ammunition and doesn’t allow S1relb training ammunition with an easily deformable bullet while maintaining the reliability of the automatic weapons.

The objective of this utility model is to ensure the reliable operation of the automatics of a standard automatic gas-fired automatic weapon when firing training ammunition with an easily deformable bullet.

reloading, firing mechanism and full-time barrel with a chamber and side gas exhaust device on the side of the muzzle part of the standard barrel installed an auxiliary barrel with a channel diameter smaller than the caliber of the combat zero, but the rear end of the external barrel does not reach the axis of the side gas outlet at a distance of / 0.5d + /, where d is the diameter of the gas outlet, and / „is the axial dimension of the easily deformable zero. Since the muzzle part of the trunks of modern firearms has a threaded section on the outer surface for installing muzzle devices, the fixation elements of the insert barrel are made in the form of a supporting collar on the side of its muzzle part, interacting with the dulp highlander of the regular barrel and union nut, the functions of which can be performed by the above muzzle devices. In addition, a lead-in section and nodral or helical nroresis are made in the channel of the insertion barrel.

Figure 1 presents a fragment of a firearm automatic gas venting with battle ammunition in the chamber. In Fig.2 the same as in Fig.1, but with a separate barrel and training ammunition with an easily deformable bullet in the chamber. In Fig. 3, an inset barrel with longitudinal and helical slots. Figure 4 is easily deformable zero of a spherical and animated shape at the time of the start of its incision into the inset barrel.

As an example, I’m not exhausting, its possible options, a fragment of a Kalashnikov assault rifle is given. It consists of a barrel 1 with live ammunition 2 in the chamber, a side gas exhaust device 3 with a norsh 4 and a muzzle compensator 5.

If it is necessary to fire training boenrinases 6 with easily deformable zeros 7, such ammunition is sent to the throttle barrel of the regular barrel 1. From the muzzle part of the standard barrel 1, after removing the muzzle compensator 5, an auxiliary barrel is placed 8. A supporting shoulder 9 is placed on the muzzle of the auxiliary barrel 8. the flange 9 of the supplementary barrel 8 is pressed against the muzzle end of the regular barrel by the muzzle compensator 5.

The diameter of the channel of the insertion barrel is chosen equal to 0.6 ... 0.8 or the caliber of the combat bullet (Do). In addition, in the canal of the insertion barrel from the side of its breech section, a run-in section 10 of length equal to (0.4 ... 1.0) Do was made.

In the insertion barrel 8, through longitudinal or helical slots P can be made for a length equal to (l, 5 ... 5.0) Do and a width (0.1 ... 0.2) Do, separated from the breech at a distance (2 ... 6} D.

For firing of educational ammunition 6 with an easily deformable bullet 7, a supplementary barrel 8 is put into the drip of the standard barrel 1 from its side of the drum, which is fixed with a pulp gun 5. In ammunition barrel of the regular barrel 1 is sent a training ammunition 6 with an easily deformable bullet 7. Shoot the gun 7 the pressure of the powder gases moves forward. After passing through the lateral gas outlet 12, the opa begin to interact with the inlet section 10 of the outer barrel 8. In this case, the resistance forces to the movement of zeros sharply increase, which leads to an increase in the pressure of powder gases in the back of the room and an increase in the rate of burning of gunpowder. After the bullet passes the entry section, the opa enters the channel of the insertion barrel with a diameter of (0.6 ... 0.8) C, and the paracyliptic section with a length of (2 ... 6) Do resistance to the movement of the deformed zero is created due to the bulge's trepid forces insertion barrel 8. Selecting the drip diameter of the insertion barrel (0.6 ... 0.8) DO allows you to provide a sufficiently high pressure in the back of the neck, which through the lateral vent hole 12 acts on the piston 4 of the lateral vent device 3, thereby obstructing the work weapons automation.

When bullet 7 passes through the middle section of the supplementary barrel 8 with grooves 11, the powder gas flows to groove 11 into the nredpool part of the channel, while the pressure behind the bullet drops sharply, and the bullet increases, so the acceleration of the bullet is reduced to a negative value due to the presence of trepium. The length of the grooves equal to (1.5 ... 5.0) Do and their width equal to (0.1 ... 0.2) DO provide a drop in the velocity of the bullet to the adaptive values, which, taking into account the further increase in speed under the action trepid forces during the passage of a bullet of a cylindrical section provide zero-traumatic functioning. When performing grooves 11 vzhggovym bullet gets some angular speed of rotation, which increases the accuracy of fire.

The proposed utility model allows the existing full-time gas-assisted firearms (automatic weapons, automatic piping, etc.) to be used for training purposes with the requirements for injuries, reliable operation of automation and without complex design changes.

The utility model makes it easy to switch from the combat execution of weapons to training and vice versa. The utility model can be widely used in training special forces soldiers to simulate a combat situation, when students in training can shoot standard automatic firearms in a training version with easily deformable zeros to defeat, as well as for

psychological and physiological effects on offenders, which does not lead to serious injuries.

Claims (1)

A firearm containing a frame, a cartridge-feeding mechanism, a reloading mechanism, a trigger mechanism and a regular barrel with a side gas vent device, characterized in that it is equipped with an add-on barrel installed in the standard barrel of the weapon from the side of its muzzle, and the rear end of the insert barrel does not reaches the axis of the side gas outlet at a distance l≅0,5d + l _n , where d is the diameter of the side gas outlet device, and l _n is the axial size of the easily deformed bullet.