RU2126521C1 - Automatic pistol - Google Patents

Abstract

FIELD: small arms. SUBSTANCE: automatic pistol has a frame with a barrel fixed to it, free slide, firing mechanism, recoil spring, magazine. The slide is made at least of two parts for movement relative to each other in longitudinal direction; their strike against the frame in the extreme position occurs in succession. The slide parts are spring-loaded. EFFECT: use of high-powered cartridge at small mass of pistol. 2 cl, 3 dwg

Description

 The invention relates to the field of small arms, in particular to self-loading pistols, and is aimed at improving their design.

 Known automatic pistols, selected as analogues of the alleged invention.

 One of these pistols is the American 9-mm gun GONCZ (Gents) (sources of information: 1. V.I. Murakhovsky, S.L. Fedoseyev "Weapons of infantry", M., publishing house "Arsenal-press", 1992; 2 A.B. Zhuk "Small arms", M., Military publishing house, 1992.

 The pistol contains a one-piece steel frame, a barrel pressed into the frame, a shutter located inside the frame, a magazine, a shock-launch mechanism.

 In the technical solution of the gun, the principle of the operation of automation with the recoil of the free shutter is used.

 Closest to the technical solution to the proposed invention is a 9 mm Stechkin pistol (APS) (source of information: "Manuals on small arms. 9 mm automatic Stechkin pistol (APS)", M., Military Publishing House, 1960).

 The Stechkin 9-mm pistol (APS) contains a frame with a barrel fixedly pressed into it, a bolt, a return spring located on the barrel, a trigger mechanism, and a magazine.

 Automation pistol works on the principle of using the recoil energy of the free (uncoupled) shutter.

 This principle of automation ensures the simplicity of the device and the reliability of the weapons. The scheme of the device and the principle of operation of the gun (APS) are presented in FIG. 1.

 The disadvantage of the analogue of the alleged invention is that in order to exclude pain on the hand of the shooter during a shot (the gun “dries” the hand), the free bolt and the whole gun as a whole must have a large mass.

 The aim of the alleged invention is to create a design of a self-loading pistol under a powerful cartridge with a small mass.

 To achieve this goal, it is planned to manufacture a bolt consisting of two main parts: the bolt housing and the combat larva, spring-loaded together, with the possibility of longitudinal movement relative to each other. The larva has the ability to move forward relative to the shutter body and abuts against the rear end of the barrel, while the shutter spring pushes the larva relative to the shutter body back.

 Two stops are performed on the frame: one for braking in the rollback of the larva, the other for braking the shutter body after the larva is stopped.

 This constructive solution allows you to decompose one powerful blow of the moving parts on the frame in the extreme position into two, separated in time by the impact of smaller masses, and the second blow is applied at the moment when the arrow of the arrow as a result of the first blow of the larva on the ledge of the frame moves back and, therefore, the speed the shutter relative to the frame is smaller.

 In FIG. 2 shows the design of the proposed self-loading pistol.

 In FIG. 3 shows a diagram of the interaction of the parts of the gun.

 The pistol (Fig. 2) consists of a frame 1 with a barrel fixed in it, a bolt consisting of a body 2 and a larva 3, a bolt spring 4, a return spring 5. A protrusion 6 is made on the frame 1 to brake the bolt body. On the larva, respectively, ledge 8 for interaction with the stop ledge 6 of the frame. A protrusion 9 is made on the shutter body for braking against the frame surface 7 and a pin 10 for interacting with the larva when the pistol is loaded. A pin 11 is pressed into the shutter housing, on which the larva presses when firing, informing the shutter housing of the forward movement to its extreme rear position. In addition, the pistol includes a trigger mechanism, including a hammer 12, a trigger 13, a trigger 14 as well as a magazine 15 and a magazine latch 16.

 The work of parts and mechanisms when loading the gun is as follows: to load the gun, you must insert the magazine equipped with the cartridges into the handle of the gun, take the bolt to its extreme rear position and release it. When the shutter is pulled back, cocking is triggered 13. After the shutter larva 3 passes the magazine, a cartridge is fed to the delivery line from the magazine. The return spring 5 under the action of a hand-drawn back housing 2 of the shutter is compressed. In this case, the larva is carried back by the pin 10. When releasing the shutter housing 2 under the action of the return spring 5, it will begin to move forward, dragging the larva 3 forward with the pin 11. The larva, moving forward, sends the cartridge to the chamber.

 When the moving parts come to their extreme forward position, the cartridge will be sent to the chamber and closed from the end by the shutter larva, the gun will be ready to fire.

 To fire a shot, you must press the trigger. In this case, the trigger 13 strikes the hammer 12 and breaks the capsule - the igniter of the cartridge. A shot is taking place.

 Further operation of the pistol mechanisms is shown in the diagram of FIG. 3 and proceeds as follows.

 Under the influence of the powder gas, the bullet begins to move along the bore, and the sleeve, acting with its bottom on the larva 3 of the shutter, begins to move the shutter back (Fig. 3a).

 Moving backward, the shutter larva 3 with its protrusion 10 carries the shutter body 2 behind it, which, moving after the larva backward, begins to compress the return spring 5. After the sleeve meets the reflector, the sleeve is removed. The larva, having reached the ledge 6 of the frame and hitting it with an emphasis 8. stops.

 The housing of the shutter 2 continues to move backward, compressing the return spring 5 and the spring of the shutter 4 (Fig. 3b).

 Moving back, the shutter body comes to its extreme rear position and strikes with a protrusion 9 on the surface 7 of frame 1. At this moment, the next cartridge is fed to the sending line from the store (Fig. 3c).

 The return spring and the shutter spring, unclenching, begin to move the shutter and the larva forward. The larva, going up to the cartridge, sends it to the barrel. The gun is ready to fire again (Fig. 3d).

 Thus, the above-described pistol operation scheme allows achieving that the massive shutter strike in the extreme rear position is replaced by two consecutive, time-shifted strokes of smaller masses, which allows to reduce the mass and dimensions of the pistol, as well as to reduce the impact of the recoil force on the arrow.

Claims (2)

 1. Self-loading pistol containing a frame with a barrel fixed therein, a free bolt with a trigger mechanism, a magazine and a return spring, characterized in that the bolt is made of at least two parts that are able to move relative to each other in the longitudinal direction in such a way that their blow in the extreme rearward position about the frame occurs sequentially.  2. The gun according to claim 1, characterized in that the parts of the shutter are spring-loaded with each other.

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