RU2453787C1 - Autoloading pistol - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: pistol comprises a frame, a barrel, a free lock with a percussion trigger and a spring-loaded elevator, a magazine and a return spring. The barrel is installed in the frame as capable of longitudinal displacement jointly with the lock and the lock elevator so that their shock in the extreme rear position against the shock happens in series. The lock has a ledge for serial interaction with the barrel and the frame. The force of the barrel spring is considerably higher than the force of the return spring.

EFFECT: lower recoil of a weapon.

2 cl, 8 dwg

Description

The invention relates to the field of small arms, in particular to self-loading pistols with a free shutter, which use high power cartridges, and is aimed at improving their design.

One of these pistols is a self-loading pistol according to the patent of the Russian Federation No. 2088879, IPC F41C 3/00, publ. 08/27/97, containing a movable barrel, frame, free bolt, return spring and trigger mechanism. The disadvantage of this gun is a strong residual effect on the hand of the shooter.

The closest in technical solution to the proposed invention is a gun according to the patent of the Russian Federation No. 21266521, IPC F41C 3/00, publ. 02.20.99 This pistol consists of a frame with a barrel pressed into it, a bolt with a larva, a bolt spring, a return spring located on the barrel, a trigger mechanism, a magazine. Such a constructive solution allows us to decompose one powerful blow of the moving parts on the frame into two impact masses separated in time.

A disadvantage of the analogue of the present invention is that when firing cartridges having a high pressure of powder gases, or a cartridge case with a high coefficient of friction (for example, bimetallic), or when the cartridge chamber is very dirty (since the cartridge is heavily contaminated during repeated shots), the cartridge overwrites chamber walls and it is not possible to remove it from the barrel, as the speed of the moving parts of the gun is lost. This leads to delays in firing (not full shutter release) and the shot does not occur.

The objective of the invention is to develop the design of the gun for any powerful cartridges, working on the principle of recoil of a free shutter, having a simple design of high reliability, with improved performance (eliminating pain on the shooter's arm) due to the cancellation of the kinetic energy of the bolt moving in the recoil due to impact of the shutter about the trunk.

To achieve this goal, in a self-loading pistol containing a frame, a free bolt with a trigger mechanism and a spring-loaded larva, a magazine and a return spring, the barrel is mounted in a frame with the possibility of longitudinal movement together with the bolt and the bolt larva so that their impact in the extreme rear position about the frame occurs sequentially. For this, the barrel is made with a rear protrusion for interaction with the reciprocal step of the frame and is spring-loaded relative to it, and the frame is equipped with a protrusion for interacting with the shutter.

In addition, the shutter has a protrusion for sequential interaction with the barrel and the frame, and the force of the barrel spring is much greater than the force of the return spring.

Thanks to this design, the rubbing of the spent sleeve against the walls of the chamber is eliminated, since after the bullet leaves the barrel and the pressure of the powder gases decreases, the barrel strikes the frame with its protrusion and, under the action of its spring, starts moving forward to its original position, releasing the sleeve, which by inertia it continues to move back together with the bolt and larva and can be easily removed from the chamber.

Such a constructive solution allows us to decompose one powerful blow of the moving parts on the frame into several impact masses separated in time. Compared with the prototype, an additional blow of the shutter against the barrel appears, in which part of the shutter energy is lost. After the bolt hits the barrel, the bolt and the barrel sequentially strike the frame.

Figure 1 is a diagram of the proposed device; figure 2-7 is a diagram of the functioning of a self-loading pistol when fired; on Fig - an example of the design of the gun.

The gun consists of a frame 1, barrel 2, bolt 3, larva 4. The bolt is spring-loaded relative to the barrel by the spring of the barrel 6. The barrel is spring-loaded relative to the bolt by the spring of the barrel 6. The barrel is spring-loaded relative to the frame by the spring of the barrel 7. The force of the barrel spring is much greater than the force of the return spring, namely by the amount necessary so that under the action of the spring of the barrel, the barrel after hitting the frame (Fig. 3) manages to return to its original position before the shutter approaches the position where they collide (Fig. 5).

The larva has a protrusion 8 for interacting with the shutter and a protrusion 9 for striking the ledge of the frame 10. The barrel has a front protrusion 11 for striking the shutter with the protrusion 12 and a rear protrusion 13 for striking the ledge of the frame 14. The frame has a protrusion 15 for striking the protrusion a shutter 12. The latter is designed so that when the shutter recovers, it is ensured that it strikes first at the ledge 11 of the barrel, and then at the protrusion of the frame 15.

The work of parts and mechanisms of the gun is as follows (Fig.2-7).

When the igniter capsule fires, the powder charge lights up. The resulting powder gas begins to push the bullet through the bore and act on the walls of the sleeve, the sleeve is pressed against the walls of the chamber. Under the influence of powder gases, the sleeve, acting on its bottom on the larva 4, begins to move it back (figure 2). Larva protrusion 8 carries the shutter behind him. The bolt, moving after the larva, compresses the return spring 5. The sleeve with a sufficiently high pressure is pressed against the walls of the chamber and drags the barrel back behind the bolt.

After the bullet left the barrel, and the pressure of the powder gases decreased, the barrel with its protrusion 13 hits the frame and stops (figure 3). The bolt, larva and sleeve continue to move backward, and the barrel, under the action of its spring, begins to move to its original, extreme forward position.

The shutter and larva, continuing to move backward, remove the sleeve from the chamber and reflect it. The larva, having reached the ledge of the frame and hitting it with the protrusion 9, stops (figure 4).

The shutter, compressing the spring of the larva 6, continues to move backward and strikes with its protrusion 12 into the front protrusion of the barrel 11 (figure 5). After the impact, the barrel, compressing the spring of the barrel 7, begins to move back together with the shutter, and the shutter, having traveled a certain distance, hits its protrusion 12 into the protrusion of the frame 15 (Fig.6) and stops. The barrel continues to move backward and strikes with its protrusion 13 into the ledge of the frame 14 (Fig.7).

The return spring 5 and the shutter spring begin to move the shutter forward. The barrel, having hit a protrusion 13 into the ledge of the frame 14, also begins to move forward under the action of its spring 7. The shutter reaches the protrusion of the larva 8 and then they move forward together. At the same time, the larva captures the cartridge that has risen to the sending line and sends it to the chamber. The gun in its original state is ready to fire.

From the foregoing it can be seen that after the bullet left the barrel and the pressure of the powder gases has decreased, the barrel with its protrusion 13 hits the frame and stops (figure 3). The shutter, the larva and the sleeve continue to move backward, and the barrel, under the action of its spring, begins to move to its original, extreme forward position, while releasing the sleeve, which by inertia continues to move back along with the shutter and the larva. Due to this, the sleeve can be easily removed from the chamber. The pain effect on the arrow of the shooter is eliminated, since such a constructive solution allows you to decompose one powerful blow of the moving parts on the frame into several strokes divided in time by smaller masses. The number of these blows during one shot compared with the prototype increases due to the fact that the barrel is now moving relative to the frame and twice hits the frame (Fig.3 and 7).

Claims (2)

1. Self-loading pistol containing a frame, a barrel, a free bolt with a trigger mechanism and a spring-loaded larva, a magazine and a return spring, characterized in that the barrel is mounted in a frame with the possibility of longitudinal movement together with the bolt and the bolt larva so that their impact in the extreme rear position about the frame occurs sequentially, in addition, the shutter has a protrusion for sequential interaction with the barrel and the frame, and the force of the barrel spring is much greater than the force of the return spring. 2. Self-loading pistol according to claim 1, characterized in that the barrel is made with a rear protrusion for interacting with the reciprocal step of the frame and is spring-loaded relative to it, and the frame is provided with a protrusion for interacting with the shutter.

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