UA15324U - Barrel of short-barreled rifle arms for shooting ammunition equipped with rubber missiles with non-fatal action - Google Patents

Abstract

The utility model relates to armament. A barrel of short-barreled rifle arms for shooting cartridges equipped with rubber missiles has the barrel itself, this comprises of two connected to each other with axial symmetry front and back cylinders with constant outer diameter of each of those cylinders and buildup fixed on the back cylinder. To make impossible the use of cartridges with fatal action the channel of the barrel is arranged as connected to each other with axial symmetry and going to each other in the section of the central part of the barrel in sequence first cone-like section, first cylindrical section, second cone-like section and second cylindrical section going to the bore cut. The first cone-like section of the barrel adjoining the cartridge chamber is made narrowing to the side of the bore cut, the second cone-like section of the barrel adjoining the first cylindrical section of the barrel is made with widening to the side of the bore cut.

Description

Description of the invention

The utility model relates to the field of weapons, in particular, to barrels for automatic small arms, and 2 specifically, to barrels of short-barreled automatic small arms intended for firing non-lethal rubber metal projectiles.

The barrel of a short-barreled small-arms weapon is known, which directly contains a barrel consisting of two axisymmetrically connected front and rear cylinders with a constant outer diameter of each of the mentioned cylinders, and an inlet made on the rear cylinder |11. 70 Among the shortcomings of the well-known barrel of short-barreled small arms is the fact that there is no guarantee of using cartridges equipped with lethal metal projectiles instead of cartridges equipped with non-lethal rubber metal projectiles.

A known barrel of a short-barreled small-arms weapon, which directly contains a barrel consisting of two axisymmetrically connected front and rear cylinders with a constant outer diameter of each of the 12 mentioned cylinders, and an inlet made on the rear cylinder, while the front cylinder is made with a diameter smaller than rear, a channel is made in the front cylinder, and a chamber is made in the rear cylinder, and the bore of the barrel is made with an inner diameter smaller than the chamber, the said barrel is connected to the chamber axially symmetrically by a cone-shaped transition, the inlet is made with a bevel for the entry of cartridges into the chamber, the bevel is made with a hollow, and the hollow is made of an oval shape (21.

The disadvantages of the well-known barrel of short-barreled automatic small arms for firing ammunition equipped with non-lethal rubber metal projectiles, which was chosen for the prototype, include the fact that there is no guarantee of the use of cartridges equipped with lethal metal projectiles (shelled or other metal bullets) instead of cartridges , which are equipped with non-lethal rubber metal projectiles.

The closest useful model, both in essence and in terms of the tasks to be solved, which is chosen as a prototype, is the barrel of a short-barreled small-arms weapon for firing ammunition equipped with non-lethal rubber metal projectiles, which directly contains a barrel consisting of two axisymmetrically connected front and rear cylinders with a constant outer diameter of each of the mentioned cylinders, and an inlet fixed on the rear cylinder, while the front cylinder is made with a smaller diameter than the rear one, with a channel in the front cylinder, and a chamber in the rear cylinder, and a barrel channel su is made with an inner diameter smaller than the chamber, the bore of the barrel is connected to the chamber axially symmetrically by a cone-shaped transition, the inflow is made with a bevel for the entry of cartridges into the chamber, the bevel o is made with a depression, the depression is oval-shaped, and in the inflow there is a hole for the fixing eye of the pin that fastens the barrel to the rack (ZI. 3o To n edolics of the well-known barrel of short-barreled automatic small arms for firing ammunition, equipped with rubber metal projectiles of non-lethal action, which was chosen for the prototype, refers to the fact that there is no guarantee of the use of cartridges equipped with metal projectiles of lethal action (shelled or other design metal bullets) instead of cartridges equipped with non-lethal rubber metal projectiles. With 50 The basis of the useful model is the task, by changing the design of the prototype, to ensure the impossibility of using cartridges equipped with lethal metal projectiles - metal shell or

From" a different design with metal balls.

The essence of a useful model in the barrel of a short-barreled small-arms weapon for firing ammunition equipped with non-lethal rubber metal projectiles, which directly contains a barrel consisting of two axisymmetrically connected front and rear cylinders with a constant outer diameter of each of the mentioned cylinders, and an inlet fixed on the rear cylinder, while the front cylinder is made with a diameter of 4! smaller than the rear one, a channel is made in the front cylinder, and a chamber is made in the rear cylinder, and the barrel bore is made with an inner diameter smaller than the chamber, the mentioned barrel bore is connected to the chamber axially symmetrically by a conical transition, the inlet is made with a bevel for the insertion of cartridges in the ka 20 chamber, the bevel is made with a groove, the groove is made of an oval shape, and the hole for the fixing pin that fastens the barrel to the rack is made in the inflow, the fact is that the bore of the barrel is made in the form

T" are axisymmetrically connected to each other and transition into each other in the area of the central part of the barrel, successively the first cone-shaped section, the first cylindrical section, the second cone-shaped section and the second cylindrical section, which passes into the muzzle section. The essence of the useful model is that the first 25 cone-shaped section of the barrel adjacent to the chamber is designed to taper toward the muzzle, and the second conical section of the barrel adjacent to the first cylindrical section of the barrel is designed to expand in on the side of the mentioned muzzle, the maximum diameter of the second conical section of the barrel adjacent to the first cylindrical section on the side of the muzzle is made either equal to the maximum diameter of the first conical section of the barrel, which is adjacent to the chamber, or smaller or larger, the second 60 conical section of the barrel, adjacent to the first cylindrical section from the side of the muzzle, made along the length of or equal to the first cone-shaped section of the barrel adjacent to the chamber, or smaller or larger, the connection of the cylindrical sections of the barrel with the conical sections of the barrel is made either at an angle with a sharp transition border, or smooth, the shape of the narrowing of the cone-shaped section of the barrel is made or with and by a linear law, or a curvilinear one, or in any of the combinations of the design, the length of the first cylindrical section is made not less than the caliber of the ammunition used, the length of the second cylindrical section is made either equal to or greater than the length of the mentioned first cylindrical section of the barrel, the diameter of the first cylindrical part of the barrel is made at least 1/5 of the caliber of the ammunition used, the maximum diameter of the second cylindrical part of the barrel adjacent to the muzzle is made at least 1/4 of the caliber of the ammunition used. The essence of a useful model is also that the concavity of the surface of the cone-shaped section of the barrel is directed either to the side from the axis of the barrel, or to the side to the mentioned axis, the combination of concavities on the cone-shaped sections is made either the same or different, the combination of geometric forms of connections in the places of transition of one section to another is made either the same or in any of the possible combinations, and the transition of the second cylindrical section of the barrel into the 7/0 muzzle is made either conical with a flat wall, or conical with a smooth connection of the inner surface of the barrel with the end surface of the muzzle .

A comparative analysis of the useful model with the prototype shows that the barrel of the short-barreled small arms for firing ammunition equipped with non-lethal rubber metal projectiles, which is claimed, differs in that the bore of the barrel is made in the form of axisymmetrically interconnected and /5 transitions into each other U around the central part of the barrel successively the first cone-shaped section, the first cylindrical section, the second cone-shaped section and the second cylindrical section, which passes into the muzzle section, while the first cone-shaped section of the barrel adjacent to the chamber is made in such a way that it tapers towards the muzzle section, the second the cone-shaped section of the barrel adjacent to the first cylindrical section of the barrel is designed to expand towards the mentioned muzzle section, the maximum diameter of the second cone-shaped section of the barrel adjacent to the first cylindrical section from the side of the muzzle section is made or equal to the maximum diameter of the first cone-shaped d the section of the barrel adjacent to the chamber, or smaller or larger, the second conical section of the barrel adjacent to the first cylindrical section from the side of the muzzle, made in length or equal to the first conical section of the barrel adjacent to the chamber, or smaller or larger , the connection of the cylindrical sections of the barrel with the conical sections of the barrel is made either at an angle with a sharp border of the transition, or smooth, the form of the narrowing of the conical section of the barrel is made either according to a linear law, or curvilinear, or in any of - combinations of construction, the length of the first cylindrical section is made not less than the caliber of the ammunition used, the length of the second cylindrical section is made either equal to or greater than the length of the mentioned first cylindrical section of the barrel, the diameter of the first cylindrical section of the barrel is made "g zo The size is not less than 1/5 of the caliber of the ammunition used, the maximum the diameter of the second cylindrical section of the barrel adjacent to muzzle section, made with a size of at least 1/4 of the caliber of ammunition used, and the concavity of the surface of the cone-shaped section of the barrel is directed either to the side from the axis of the barrel, or to the side to the mentioned axis, the combination of concavities on the cone-shaped sections is made either the same or different , the combination of geometric forms of connections in places of transition from one section to another is completed or o

With the same, or in any of the possible combinations, and the transition of the second cylindrical section of the barrel into "- the muzzle is made either conical with a flat wall, or conical with a smooth connection of the inner surface of the barrel with the end surface of the muzzle.

Thus, the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber-metal projectiles, which is declared, meets the criterion of "useful model" novelty. The essence of the useful model is explained with the help of illustrations, where Fig. 1 shows the general view of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with rubber; with non-lethal metal projectiles in a 3/4 angle view from the chamber, Fig. 2 shows the structural and structural diagram of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with rubber metal projectiles with non-lethal action, which is claimed, Fig. 3 shows cross-section A - A barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber-metal projectiles, Fig. 4 shows a section B-B of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber 2) metal projectiles, Fig. 5 the B-B cross-section of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber-metal projectiles is shown in Fig.b, the cross-section GG-G of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber-metal projectiles is shown y, Fig. 7 shows a section

D-D of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber-metal projectiles, Fig. 8-15 shows variants of the design of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber-metal projectiles, which is claimed on Fig. 16 shows a structural and structural diagram of a weapon in which the barrel of a short-barreled automatic small-arms weapon is used for firing ammunition equipped with rubber metal projectiles of non-lethal action, which is claimed; Fig. 17 shows a structural and structural diagram of an ammunition (cartridge) used for of the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with rubber-metal projectiles of non-lethal action, which is claimed, Fig. 18-29 shows the stages of a shot with the passage of a rubber-metal projectile through the barrel of a short-barreled automatic small-arms of weapons for firing ammunition equipped with rubber metal projectiles of non-lethal action, which is declared.

The barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with rubber projectiles of non-lethal action (as a design variant) (see Fig. 1-2 and Fig. 16b) directly contains the barrel 1, which consists of two axisymmetrically connected front ( position 2) and rear (position 3) cylinders with a constant outer diameter of each of the mentioned cylinders (respectively, a" and d" - see Fig. 1-2 and Fig. 8-9), Its inlet 4, fixed on the rear cylinder Z (see Fig. 1-2 and Fig. 8-93, while the front cylinder 2 is made with a smaller diameter than the rear cylinder (position Z) (and 1xd"). Structurally, the front cylinder 2 has a channel 5, and the rear cylinder A chamber 6 (with an inner diameter az) is made, and the channel 5 of the barrel 1 is made with an inner diameter 44 smaller than the chamber 6 (with an inner diameter 3). The mentioned channel 5 of the barrel 1 is connected to the chamber b axisymmetrically by a cone-shaped transition 7 (see Fig. 2 and Fig. 8-12). 4 is made with a bevel 8 for the entry of cartridges 9 into the chamber 6 (see

Fig. 1-2 and Fig. 16). Bevel 8 is made with a hollow 10, while the hollow 10 is made of an oval shape (see 7/0 Fig. 1-2, Fig. 16 and Fig. 8-12). A hole 11 for a locking pin 12 that fastens the barrel 1 to the rack 13 of the weapon frame is made in the inflow 4 (see Fig. 1-2, Fig. 8 and Fig. 1b6). Channel 5 of the trunk 1 is made in the form of axisymmetrically interconnected and transitional one into the other in the area of the central part of the trunk 1 successively the first cone-shaped section (position 14), the first cylindrical section (position 15), the second cone-shaped section (position 16) and the second cylindrical section (position 17), which passes into the muzzle section 18 (see Fig. 2, 7/5 Fig. 8-12 and Fig. 16). Structurally, the first cone-shaped section (position 14) of the barrel 1, adjacent to the chamber b, is made in such a way that it narrows towards the muzzle section 18 (see Fig. 2, Fig. 8-12 and Fig. 16). The second cone-shaped section (position 16) of the barrel 1, adjacent to the first cylindrical section (position 15), is made in such a way that it expands towards the mentioned muzzle section 18 (see Fig. 2, Fig. 8-12 and Fig. 16b).

The maximum diameter 45 of the second conical section (position 16) of the barrel 1 adjacent to the first cylindrical section (position 15) from the side of the muzzle 18 is made or equal to the maximum diameter a b of the first conical section (position 14) of the barrel 1 adjacent to the chamber 6, or smaller or larger.

The second conical section (position 16) of the barrel 1 adjacent to the first cylindrical section (position 15) on the side of the muzzle 18 is made along the length of I. or equal to the first conical section (position 14) of the barrel 1 adjacent to the chamber 18, or smaller (see Fig. 2 and Fig. 8-9, where I "I5), or larger. The connection of cylindrical sections (positions 15 and 17) of barrel 1 with conical sections (respectively, positions 14 and 16) is made either at an angle with a sharp transition border (see Fig. 2 and Fig. 8-993), or smooth (see Fig. .10).The form t of the narrowing of the cone-shaped section (or position 14 or position 16) of the trunk 1 is made either according to a linear law (see Fig. 2 and Fig. 8-99), or curvilinear (see Fig. 11), or in any of the combinations of design execution (see Fig. 12). The length of the first cylindrical section (position 15) is made not less than caliber K "g zo ammunition (cartridge 9) (see Fig. 8), which is used, for example, a cartridge caliber 9 mm with an outer diameter of the sleeve 10 mm (41, (5). The length 125 of the second cylindrical section (position 17) of barrel 1 is made either equal to or greater (see Fig. 2, Fig. 8-12) than the length I" of the mentioned first cylindrical section (position 15) of barrel 1. Diameter 4 of the first cylindrical section (position 15) of barrel 1 is made with a value of at least 1/5 of the ammunition caliber (pattern she 9), which are applied. The maximum diameter 47 of the second cylindrical section o (position 17) of the barrel 1, adjacent to the muzzle section 18, is made at least 1/4 caliber K "- ammunition (cartridge 9) used. The concavity of the surface of the cone-shaped section (or position 14 or position 16) of the barrel 1 can be either to the side from the axis 19 of the barrel 1 (see Fig. 12), or to the side to the mentioned axis 19 (see Fig. 11). The combination of concavities on the cone-shaped sections (either position 14 or position 16) of barrel 1 is made either the same or different. The combination of geometric forms of connections in the places of transition of one section in another is performed either identically (see Fig. 2 and Fig. 8-11), or in any of the possible combinations (see c Fig. 12). The transition of the second cylindrical section (position 17) of the channel 5 of the barrel 1 into the muzzle section 18 is made either conical with a flat wall 20 (see Fig. 13), or curved with a smooth connection of the inner surface; 21 of the channel 5 of the barrel 1 with the end surface 22 of the muzzle section 18 (see Fig. 14-15).

For weapons (item 23), for example, for the upgraded 9 mm Makarov pistol (PM) |b6), in which

The barrel 1 of a short-barreled automatic small-arms weapon can be constructively installed for shooting - ammunition equipped with non-lethal rubber metal projectiles (which is claimed), cartridges 9 |4), |5) are used, which are equipped with rubber metal projectiles 24 of non-lethal action (see Fig. .16-17 and Fig. 18). The cartridge 9 (4), 5) contains a cylindrical sleeve 25 with a groove 26 and a flange 27 in the 2) rear part (see Fig. 1b6 and Fig. 17-18). An igniter capsule 50 28 is installed in the mentioned rear part of the sleeve 25. In the area of the nozzle 29 of the sleeve 25, a rubber projectile 24, made in the form of a bullet, is placed (see Fig. 16 and Fig. 17-18) and 5). The nozzle 29 of the sleeve 25 is crimped to ensure reliable fixation of the rubber and metal projectile 24 inside the mentioned sleeve 25. Between the mentioned rubber projectile 24 and the igniter capsule 28, a projectile charge 30 (for example, a powder charge) is placed (see Fig. 17-18 ) |4), (b.

The barrel 1 is structurally designed in such a way that it contains a muzzle section 18 (with an end surface 22) and a channel 5 dv (for the passage of a metal projectile 24 of non-lethal action). The barrel 1, as a variant of the design, is fixed on the rear cylinder Z in the rack 13, which, in turn, is fixed on the frame 31 of the weapon 23 (see c Fig. 16) (6). The trunk 1 is fixed from longitudinal movements relative to the frame 31 with the help of a pin 12, which is inserted into the hole 11 made in the inflow 4 (see Fig. 16b) (b).

The barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with non-lethal rubber or metal projectiles is used as follows.

Barrel 1 with chamber b is pre-manufactured. To do this, for example, a structure containing two cylinders connected along the longitudinal axis (respectively, the front cylinder 2 and the rear cylinder 3) with different outer diameters is turned from the workpiece; and till". Next, on the cylinder Z with a larger outer diameter d (on the chamber 6), an inflow 4 is performed, the rear part of which (adjacent to the rear part of the cylinder Z with a larger outer diameter d") is made with a bevel 8.

After that, in the front cylinder 2 with a smaller outer diameter 4.4 (barrel 1), a channel 5 is made for the passage of a rubber metal projectile 24, and in the rear cylinder Z with a larger outer diameter to, a cylindrical channel (cartridge b) with a diameter dz for a cartridge 9 is made, which equipped with the mentioned rubber projectile 24 (see Fig. 16-18) |4), (5). The inner surface 21 of channel 5 of barrel 1 is made smooth (without grooves). In the inflow 4, a hole 11 is made for the passage of the pin 12, which fixes the barrel 1 in the rack 13 of the frame 31 of the weapon 23 from longitudinal movements relative to the frame 31 of the mentioned weapon 23. On the bevel 8, a recess 10 is made, while the recess 10 is oval-shaped (in cross section ) (see Fig. 1-2 and Fig. 16).

Structurally, the chamber 6 is made with a depth ud smaller than the length I) of the cartridge 9 used (see Fig. 17) (6). The diameter (caliber K) of the channel 5 of the trunk 1 along the inner diameter is 49; the first cylindrical section 76 15 is made no less than 30906 smaller than the diameter dz of the chamber 6 (see Fig. 2 and Fig. 8-12).

After that, the barrel of a short-barreled automatic small-arms weapon for firing ammunition equipped with rubber metal projectiles of non-lethal action, which is claimed, is installed in the rack 13 of the frame 31 of the weapon 23 and fixed against longitudinal movements relative to the frame 31 with the help of a pin 12, which is technologically pressed into the hole 11 (which , in turn, is performed on the influx 4) (b).

In the composition of the weapon (position 23) (see Fig. 16), for example, in the upgraded 9-mm Makarov pistol (PM) or in the 9-mm FORT pistol, for example, FORT-12, FORT-14 (or in other weapons, which is manufactured at the industrial enterprises of Ukraine, for example, in pistols of the Schmeisser company"), the barrel of a short-barreled automatic small arms for firing ammunition equipped with rubber metal projectiles of non-lethal action, which is claimed, is operated (used) as follows.

First, a cartridge 9 is inserted into the chamber 6 of the barrel 1, which is equipped with a rubber projectile 24 of non-lethal action of a spherical shape (see Fig. 1b6 and Fig. 18) 41, I5). The outer walls of the sleeve 25 will be in contact with the inner surface 32 of the chamber 6 (see Fig. 16 and Fig. 16 and Fig. 18). At the same time, the cartridge 9, when entering the chamber b, moves along the depression 10, which is made on the bevel 8 of the overflow 4. When the cartridge 9 is in the chamber 6, the rear part of the cartridge 9 protrudes beyond the edge of the mentioned chamber 6 no less than on the ZMM ( see Fig. 1b6 and Fig. 18-19) (for the impact of the impactor (hammer) 33 on the igniter capsule 28), and the rubber projectile 24 (caliber 9.0...9.5 mm) rests against the wall 34 of the cone-shaped transition 7, which connects the chamber 6 with the channel 5 of the barrel 1, which, as a variant of the design, in the first cylindrical channel 15, which is minimal in diameter a 4, is made with a caliber of 5.6...6.1 mm (see the structural and assembly diagram weapons in Fig. 16 and Fig. 18). To fire, the shooter presses the trigger 35 of the weapon 23 with his finger and activates the shock-trigger mechanism 36 (see Fig. 16). When the shock-trigger mechanism 36 is activated, the trigger 37 hits the firing pin 33 (firearm) (b) (see Fig. 16 and Fig. 18-19). co

Upon impact by the striker 33 (hammer) with force b (see Fig. 1b6, Fig. 18 and Fig. 19) on the igniter capsule 28 of the cartridge 9, the mentioned igniter capsule 28 is triggered and ignites the projectile charge 30, which is placed in sleeve 25 (see Fig. 19). Under the action of the expanding powder gases formed during the combustion of the metal charge 30 (powder charge) (see Fig. 19), the rubber projectile 24 will be pressed into the channel 5 of the barrel 1, namely, bypassing the walls 34 through a cone-shaped transition 7 (which connects the chamber 6 with the channel 5 of the barrel 1) in the first cone-shaped section 14 (with a maximum diameter of db) of the channel 5 of the barrel 1 (see Fig.

Fig. 19). Next (also under the increasing pressure of the powder gases formed during the combustion of the metal charge 30) "the rubber projectile 24 will move along the length of the channel 5 of the barrel 1 (see Fig. 19-28) to the muzzle section pt") with 18, namely , pushing first along the first cone-shaped section 14 (adjacent to the chamber 6) (see

Fig. 20) with subsequent pressing into the first cylindrical section 15 (see Fig. 21). Having passed the first cylindrical;" section 15 (see Fig. 22), the rubber projectile 24 will be pressed into the second cone-shaped section 16 from the side of its smaller diameter (see Fig. 23) with further passage along the length of the specified second cone-shaped section 16 (see Fig. 24). Having passed the second cone-shaped section 16 (see Fig. 25), the rubber projectile 24 will be pressed into the second cylindrical section 17 (with an inner diameter of 7) (see Figs. 25-26). Next, the rubber projectile 24 will move along the length of the specified second cylindrical section 17 (see Fig. 2b). o Having entered the second cylindrical section 17 (adjacent to the muzzle 18) of the channel 5 of the barrel 1, the rubber projectile 24 under the pressure of the expanding powder gases formed during the combustion of the metal 5o charge ZO (powder charge) will move along the specified length of the second cylindrical section 17 to the right of the muzzle section 18 (see Fig. 26-27). At the same time, the friction of the rubber metal projectile 24 against the inner surface 21 of the channel 5 of the barrel 1 will be compensated by the smooth surface 21 of the channel 5 of the barrel 1, in particular, the smooth inner surface of all conical (positions 14 and 16) and cylindrical sections (positions 15 and 17) ( see Fig. 19-28).

At the exit from the second cylindrical section 17 (adjacent to the muzzle 18) of the channel 5 of the barrel 1, the rubber projectile 24 will pass through the muzzle 18 (see Fig. 27), while the mentioned rubber projectile 24 will be transformed from one geometric shape (from an elongated shape) into another shape - spherical (see Fig. 27-28).

When the rubber metal projectile 24 exits the muzzle section 18 of the barrel 1, the mentioned rubber projectile 24 will expand, assuming its spherical shape (see Fig. 29).

After the release of the rubber metal projectile 24 beyond the muzzle section 18 of the barrel 1 (see Fig. 29), it (rubber projectile 24) will continue to move towards the target at a speed of M by inertia.

At the moment of passage of the rubber metal projectile 24 through the channel 5 of the barrel 1, the sleeve 25 will be thrown out of the chamber 6 by the force of the recoil reaction, thereby affecting the shutter frame 38. The shutter frame 38 under this influence 65 will sharply move back (to the side of the chamber 6) , and the shot casing 25 is pulled out of the chamber 6 of the barrel 1 by hooking it to the flange 27 of the groove 26 (for example, the ejector 39 of the weapon 23 - see Fig. 16) when the bolt frame 38 moves back. Likewise, when the bolt frame 38 moves back, the return spring 40 is compressed (accumulating energy) Ib). At the same time, the shock-trigger mechanism 36 is raised.

When the recoil force and the compression force of the return spring 40 are equal, the shutter frame 38 will stop and when the spring 40 is unzipped, it will move forward - towards the chamber 6 (the movement of the shutter frame 38 is not shown |6)).

When the bolt frame 38 moves forward (along the frame 31 of the weapon 23 towards the chamber 6), which is carried out under the force of the return spring 40, the specified bolt frame 38 grabs the next cartridge 9 from the magazine 41, sends it to the chamber b and locks it there (see Fig. 1b6 and Fig. 18) I6Y. At the same time, the feeding spring 42 (of the magazine 41) lifts the next cartridge 9, which is in the specified magazine 41, upwards and presses it 7/0 to the lower surface of the shutter frame Z8 (see Fig. 16) (6).

The weapon is again ready for the next use (to fire) with the corresponding above actions of the shooter.

Increasing the efficiency of using the barrel of a short-barreled automatic rifle for firing ammunition equipped with non-lethal rubber metal projectiles, which is claimed in 7/5 Comparison with the prototype, is achieved by changing the design of the barrel, namely, reducing the caliber of the barrel by almost two times to prevent the use of ammunition (cartridges) that are equipped with lethal projectiles, for example, metal shell bullets (or metal bullets of another design) with an impact energy of about ZbOkg/cm.

Sources of information 1. F.K. Babak "All about pistols and revolvers", ed. POLYGON, St. Petersburg, 2003, p. 195 - analogue. 2. F.K. Babak "All about pistols and revolvers", ed. POLYGON, St. Petersburg, 2003, p. 140 - analogue.

Z. Instruction on shooting. Makarov's 9-mm pistol (PM), - M,: Military publishing house, 1986, p. 51, fig. 46, p. 56, fig. 47 - prototype. 4. Ukrainian specialized popular science magazine, Weapons and Hunting "Weapons and Hunting".

Founder and publisher of LLC "Editorial of the magazine "Weapons and Hunting", Mo2/2001, pp. 14-17. 5. Magazine "Technology of special purpose", founder and publisher of OBO "Alfa-Center" and "Alfa-Bureau", Z

Kyiv, Mo1, January 2001, p. 34-39, p. 38, position 42. 6. Instruction on shooting. Makarov's 9-mm pistol (PM), - Moscow: Military Publishing House, 1986. « 3o

Claims (1)

The formula of the invention is the barrel of a short-barreled small-arms weapon for firing ammunition equipped with non-lethal rubber metal projectiles, which directly contains a barrel consisting of two axisymmetrically connected front and rear cylinders with a constant outer diameter of each of the mentioned cylinders, and the same flow , fixed on the rear cylinder, while the front cylinder is made with a diameter smaller than the rear one, a channel is made in the front cylinder, and a chamber is made in the rear cylinder, and the barrel bore is made with an inner diameter smaller than the chamber, the said barrel bore is connected to the chamber axisymmetric along a cone-shaped transition, the inflow is made with a bevel for the entry of cartridges into the chamber, the bevel is made with a groove, the groove is oval-shaped, and in the inflow there is a hole for a locking pin. made in the form of axisymmetrically connected to each other and pe rotating one to another in the area of the central part of the barrel sequentially from the first cone-shaped section, the first cylindrical section, the second conical section and the second cylindrical section that transitions into the muzzle section, while the first conical section of the barrel adjacent to the chamber is made in such a way that it tapers in the direction of the muzzle, the second conical section of the barrel adjacent to the first cylindrical section of the barrel is designed to expand towards the mentioned muzzle, the maximum diameter of the second conical section of the barrel adjacent to the first cylindrical section o from the side of the muzzle is made or equal to the maximum diameter of the first cone-shaped section of the barrel, which 2) is adjacent to the chamber, or smaller or larger, the second cone-shaped section of the barrel adjacent to the 5r of the first cylindrical section from the side of the muzzle, made in length or equal to the first cone-shaped section of the barrel, adjacent to the chamber, either smaller or larger, connecting The connection of the cylindrical sections of the trunk with the conical sections of the trunk is made either at an angle with a sharp transition border, or smoothly, the form of the narrowing of the conical section of the trunk is made either according to a linear law, or curvilinear, or in any of the combinations of the design, the length of the first cylindrical section is made not less than the caliber of the ammunition used, the length of the second cylindrical section is made either equal to or greater than the length of the mentioned first cylindrical section of the barrel, the diameter of the first cylindrical section of the barrel is made with a value of at least 1/5 of the caliber of the ammunition used, the maximum diameter of the second of the cylindrical section of the barrel adjacent to the muzzle, made with a size of at least 1/4 of the caliber of the ammunition used, and the concavity of the surface of the cone-shaped section of the barrel is directed either away from the axis of the bore of the barrel, or toward the mentioned axis, the combination of concavities on the cone-shaped sections performed either the same or different m, the connection of the geometric forms of connections in the places of transition from one section to another is made either the same or in any of the possible combinations, and the transition of the second cylindrical section of the barrel into the muzzle is made either conical with a flat wall, or conical with a smooth connection of the inner surface of the barrel with the end surface of the muzzle. b5