CZ279611B6 - Breech-lock with a barrel for automatic pistol - Google Patents

Abstract

The equipment consists of the body (4) of the barrel in which there is a gun barrel (5). In the body (4) of the barrel there is a chamber (1) covering the gun barrel (5). In the area of chamber (1) on the gun barrel (5) there is a cog the cross section of which is identical to the cross section of the chamber (1). In the gun barrel (5) there is at least one channel (3) connecting the body (8) of the gun barrel (5) to the chamber (1).<IMAGE>

Description

BACKGROUND OF THE INVENTION The present invention relates to a barrel with a barrel for an automatic pistol comprising a barrel.

BACKGROUND OF THE INVENTION

When using pistols for training or training purposes, it is advantageous to use low power ammunition for economic reasons. In terms of training efficiency, however, it is often necessary that the low-power ammunition gun used is identical in shape to the more-powerful ammunition gun standard. This is achieved either by producing identical shape imitations, adapted to use low-power ammunition, or by designing adapters to standard guns that eliminate the problems caused by low-power ammunition in relation to the size and weight of the original breech. It is obvious that the use of adapters is cheaper than the design of a fake gun.

The existing solutions basically use either the split bolt principle or the sliding chamber.

For a split slide, the desired effect is achieved by moving only a portion of the slide whose weight is proportional to the performance of the ammunition. A disadvantage of these embodiments is the considerable manufacturing complexity.

The sliding chamber is a cylinder device in which the cartridge chamber is located. The cylinder is slidably mounted in the barrel. When fired, the pressure of the gas acts on the face of the cylinder, which discards the conclusion. The disadvantage of this solution is the clogging of the entire device and the resulting problematic function.

SUMMARY OF THE INVENTION

These drawbacks are largely overcome by a slide with a barrel for an automatic pistol, consisting of a barrel body in which a barrel is arranged, according to the invention, characterized in that a barrel is enclosed in the barrel enclosing the barrel. In the region of the chamber, a projection is arranged on the barrel, the cross section of which is identical to the cross section of the chamber. At least one channel is formed in the barrel, connecting the bore of the barrel to the chamber.

The barrel of the present invention acts as a slide barrel booster and allows low-power ammunition to be used with automatic guns that normally operate with more powerful ammunition, while ensuring the gun's trouble-free function even when using inferior quality cartridges without the risk of excessive contamination. The design also allows to imitate the movement of the weapon when firing the same as the movement when using more powerful ammunition.

For retrofitting, it is advantageous if the starting position of at least one of the chamber faces is adjustable. This allows the speed of the slide to be varied, thus adapting the adapter to very different power charges.

-1GB 279611 B6

Overview of the drawings

The invention will be explained in more detail by means of the accompanying drawing, in which a self-closing pistol and a barrel according to the invention are shown in partial section.

DETAILED DESCRIPTION OF THE INVENTION

To the known automatic pistol is its adapter, allowing the use of low power ammunition is attached to the barrel, which are modified so that the body 4 of the chamber is formed, which surrounds the barrel 5 and in the area of this chamber 1 is located on the barrel protrusion 2. The cross section of the projection 2 is identical to the cross section of the chamber. From the bore 8 of the barrel 5 into the chamber 1 two channels 3. ·

After the firing, the flue gas flows from the bore 8 of the barrel 5 into the chamber 1, whereby the pressure increase in the chamber 1 causes the slide body 4 to slide backward.

In a preferred embodiment, the starting position of at least one of the faces 6, 7 of the chamber 1 is adjustable, which is achieved, for example, by providing a protrusion 2 in the form of a nut adjustable on the barrel 5 or an adjustable structure of the rear side of the chamber 1.

By varying the volume of chamber 1, the breech function can be adapted to the flue gas pressure available with respect to the ammunition used.

PATENT CLAIMS

Claims (2)

A barrel with a barrel for an automatic pistol, comprising a barrel body, in which a barrel is arranged, characterized in that a barrel (1) is provided in the barrel body (4), enclosing the barrel (5), wherein in the chamber area (1) a protrusion (2) is provided on the barrel (5), the cross section of which is identical to the cross section of the chamber (1) and in the barrel (5) is formed at least one channel (3) connecting the bore (8) of the barrel (5) ) with chamber (1). A barrel lock according to claim 1, characterized in that the starting position of at least one of the faces (6, 7) of the chamber (1) is adjustable.