RU2659338C1 - Automatic small arms - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to armaments, namely to automatic small arms. Automatic small arms have a barrel, a receiver, a gas venting mechanism, a barrel trunk locking system, a trigger mechanism, a sighting device, a butt, a magazine. Locking system of the barrel bore consists of crank-jointed levers, including a crank and a connecting rod, connected by an axle. One of the ends of the crank is connected to the axis in the back of the receiver. Valve is connected by an axis to the connecting rod and is located above the magazine in the front part of the receiver. Gas engine is mounted on top of the barrel. Gas engine stem enters the top of the receiver and has an inclined surface at the end. Stem return spring is located above the barrel, and the return spring of the valve is installed in the fire control handle.

EFFECT: increased accuracy of weapons, a decrease in recoil, as well as a reduction in weight and a reduction in overall dimensions.

1 cl, 3 dwg

Description

The invention relates to the field of weapons and can be used in small arms.

Famous machine gun Maxim sample 1910 [Babak F.K. Machine guns / F.K. Babak. - M .: AST; SPb .: Polygon, 2006. - P. 152] / Automation of the machine gun works due to the recoil of the barrel during its short course. The barrel bore is locked using the crank arms. The trigger mechanism of the shock type allows only continuous fire. Sighting device open type, tape power.

The disadvantages of this invention are:

- significant weight of more than 60 kg;

- complex design, which makes it expensive in mass production.

Known pistol Parabellum P-08 [Pilyugin V.I. Pistols and revolvers: selection, design, operation / V.I. Pilyugtn, M.B. Ingerlab. - M .: AST: Astrel, 2010. - S. 17-20], which has high reliability. The operation of the Parbellum P-08 automation is ensured by the recoil with a short barrel stroke. The locking mechanism of the pistol is a type of crank mechanism, in which the shutter plays the role of a slider. In the locked position, the hinge is slightly below the dead center, abutting the lateral cylindrical protrusions of the crank in the upper ends of the walls of the receiver. Thus, the bolt locks the barrel, resting on the "connecting rod-crank" line in the receiver.

The disadvantages of the gun are:

- in fact, the external location of the bolt and trigger mechanism make the weapon extremely sensitive to contamination;

- when fired, the bloodworm and the connecting rod rise up and go beyond the dimensions of the gun;

- in the design of the P-08 pistol there are many parts of complex shape, which makes it expensive in mass production.

The prototype of the invention is the Kalashnikov assault rifle AK-74 M [Shunkov V.N. Encyclopedia of the latest small arms / V.N. Shunkov. Edited by A.E. Taras. - M .: ACT, Mn .: Harvest, 2006. - S. 149].

The operation of AK-47M automation is based on the removal of powder gases from the bore. When fired, powder gases flow through a hole in the wall of the barrel into a gas engine. The piston moves back under the pressure of the gases, its rod, rigidly connected with the bolt frame, pushes it into the rear position. The bolt frame, rotates the bolt, and the barrel is unlocked. A movable bolt group, having a weight of 520 g, moves back at a speed of 3.5-4 m / s and hits the rear wall of the receiver. After that, the return spring moves the bolt carrier and bolt forward, and the bolt group strikes the front of the receiver again. These impacts lead to vibration of the weapon, adversely affect accuracy and increase dispersion.

The disadvantages of this machine are:

- insufficient accuracy due to the operation of shock-type automation;

- significant weight.

The technical result of the invention are:

- improving accuracy;

- reduced recoil due to the smooth operation of weapons automation;

- weight reduction is achieved by reducing the length of the receiver, as well as reducing the mass of the movable bolt group;

- reduction in size by reducing the length of the receiver.

The barrel channel locking system with lever-articulated levers is reliable, has a long resource, the barrel is unlocked and locked smoothly, without impacts.

The technical result is achieved by the fact that the barrel channel locking system consists of connecting rod arms including a bloodworm and a connecting rod connected by an axis, the other end of the bloodworm is connected by an axis in the rear of the receiver, the bolt is connected by an axis to the connecting rod and is located above the magazine in front of the receiver, the gas engine is mounted on top of the barrel, the gas engine rod enters the top of the receiver and has an inclined surface at the end, the stem return spring is located above the barrel, and Ratna shutter spring is mounted in the handle of the fire control.

In FIG. 1 shows a general view of an automatic small arms, which consists of a receiver 1, barrel 2, gas engine 3, sights 4, butt 5, as well as fire control knob 6 and shutter handle 7, store 8.

In FIG. 2 shows a section through the receiver 1 when the bolt 9 is in the forward position. The barrel bore 2 is locked by connecting rod arms consisting of a bloodworm 10 connected by an axis 11 to a receiver 1 and a connecting rod 12 connected by an axis 13 to a bolt 9. The crank 10 is connected by an axis 14 to a connecting rod 12.

The return spring 15 of the shutter 9 is installed in the fire control handle 6. The unlocking mechanism of the barrel 2 is a gas engine 3 (not shown) with a rod 16 having an inclined plane 17 at the end. A return spring 18 of the rod 16 is installed above the barrel 2.

In FIG. 3 shows a section through the receiver 1 when the bolt 9 is in the rear position of the receiver 1. The barrel 2 is shown, the fire control handle 6, the magazine 8, the bolt 9 in the rear position of the receiver, the bloodworm 10 and the connecting rod 12 are in the folded position, placed between them shock absorber 20. An inclined surface 17 and a return spring 18 of the rod 16 are visible on the stem 16. A movable plate 19 is shown after moving the shutter 9 to the rear position.

We pick up a weapon and pull the handle 7 mounted on the plate 19, back to the stop. At the same time, inside the receiver 1, the plate 19 will move backward, which presses the protrusion in the middle of the connecting rod 12 and the axis 14 connecting the bloodworm 10 and the connecting rod 12 will go down, pass the “dead center” and unlock the barrel 2. The plate 19, when it moves backward, it is connected to the shutter 9, which will move to the back of the receiver 1. When the shutter 9 moves back, the trigger is cocked (the trigger mechanism is not shown in the drawing, nor are two return springs on the plate 19 that move pla Stin 19 in the forward position). Inside the fire control knob 6, the return spring 15 of the shutter 9 will be compressed until the shutter 9 reaches its extreme rear position and abuts against the shock absorber 20 mounted on the winder 10.

When the shutter 9 is in the extreme rear position inside the receiver 2, the axis 14 connecting the bloodworm 10 and the connecting rod 12 is in the lowermost position. The return spring 15 is maximally compressed.

We release the handle 7. The return spring 15 installed in the fire control handle 6 will turn the bloodworm 10 on the axis 11.

The shutter 9 will move forward, and the connecting rod 12 and the crank 10 connected by the axis 14, rise up. The handle 7, connected to the plate 19, together with the shutter 9 will move forward and, while firing, remain stationary in the front of the receiver 1. The shutter 9, when moving forward from the magazine 8, removes the cartridge and sends it to the chamber. As soon as the shutter 9 occupies its extreme forward position, the bloodworm 10 and the connecting rod 12 pass the “dead center” and lock the bore.

When you pull the trigger, a shot occurs. The operation of the gas engine 3 is known. The powder gases accelerate to move the bullet forward through the bore 2 until it passes through the hole in the bore 2. Part of the powder gases enters through the hole in the bore wall of the gas engine 3. The piston of the gas engine 3 starts to move back together under the pressure of the powder gases with the rod 16 and will compress the return spring 18. At the same time, inside the receiver 1, the rod 16 with its inclined surface 17 moves the axis 14 of the bloodworm 10 and the connecting rod 12 down, they pass the “dead center” and the trunk channel is unlocked.

The residual pressure of the powder gases in the bore presses on the shutter 9, which moves back, the axis 14 goes down, and the connecting rod 12 and the bloodworm 10 are added. The sleeve is removed from the chamber and thrown out. The trigger is cocked. The shutter 9 in its extreme rear position collides with the shock absorber 20 mounted on the winder 10, and the shutter stops.

After that, the return spring 15 rotates the crank 10 on the axis 11, the axis 14 connecting the crank 10 and the connecting rod 12 will rise up, and the shutter 9 moves forward. When the shutter 9 moves forward, the cartridge is removed from the magazine 8 and sent to the chamber. The crank 10 and the connecting rod 12 are “dead center” and abut against the ribs of the receiver 1, the barrel is locked. The weapon is ready to fire.

Claims (1)

An automatic small weapon having a barrel, a receiver, a gas vent, a barrel channel locking system, a trigger mechanism, an aiming device, a butt, a magazine, characterized in that the barrel channel locking system consists of connecting rod arms including a crank and a connecting rod, interconnected by an axis, the other end of the bloodworm is connected to an axis in the rear of the receiver, the bolt is connected by an axis to the connecting rod and is located above the magazine in front of the receiver, the gas engine is installed with erhu on the barrel, the rod of the gas engine enters the top of the receiver and on the end of an inclined surface, a return spring rod located above the barrel, and return the shutter spring is mounted in the handle of the fire control.

Images