RU2446374C1 - Reflector for smoothbore gun - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: proposed mechanism comprises movable reflector interacting with shaped grooves and reciprocating in muzzle box from initial position whereat short cartridge case is extracted to rear position whereat long cartridge case is extracted. Magazine cutoff interacts with grooves for fitting reflector on muzzle coupling to allow lengthwise motion of reflector. Reflector spring allows reciprocation of reflector between initial and rear position in assembled state. Reflector is moved back in dismantling reflection mechanism.

EFFECT: reliable extraction of cartridge cases of different length.

7 cl, 12 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a reflection mechanism for a smoothbore firearm.

State of the art

In a number of samples of modern firearms, in particular smooth-bore guns, it is possible to use cartridges with different liner lengths, for the extraction of which the reflection mechanism is used. It is known that for reliable extraction of a spent cartridge case, the reflection mechanism must act on the bottom of the cartridge case when the front end of the cartridge case exits the chamber.

Since the design of the guns and their main components are known to the specialist, the present description is made with reference only to the reflection mechanism.

Most of the applied reflection mechanisms for smooth-bore weapons have a fixed reflector designed to reflect the maximum length of the sleeve, so that when reflecting short sleeves, the sleeve can exit the ejector tooth before interacting with the reflector. This leads to unreliable operation of all weapons.

Also known are reflection mechanisms comprising a movable spring-loaded reflector, similar to those disclosed in US 3014304, 12.26.1961, which describes a movable reflection mechanism with a movable spring-loaded reflector, comprising a guide rod on which the spring is mounted, and a movable reflector tooth located on the flange in contact with the guide rod, and the tooth of the reflector is in mechanical communication with the bolt of the weapon and provides extraction of the spent sleeve during the reverse stroke.

The known reflection mechanism does not provide reliable extraction of spent cartridges of different lengths in smooth-bore firearms, since its design has a mechanical connection with the bolt of the weapon, which can cause unwanted movement of the reflector, especially possible when the grooves in which the movable reflector is contaminated are contaminated. In addition, the known design is characterized by increased friction in the working mechanisms of the weapon, as well as the large dimensions of the weapon.

Accordingly, the design of the known reflection mechanism due to the presence of a large number of friction parts requires frequent maintenance.

An object of the present invention is to provide a reflection mechanism for a smoothbore firearm having a simple structure and providing reliable extraction of spent cartridges of various lengths.

SUMMARY OF THE INVENTION

A reflection mechanism for smooth-bore firearms is proposed, comprising a movable reflector that provides reliable extraction of the cartridge case of different lengths due to the fact that the movable reflector acts on the cartridge case immediately after removing it from the chamber.

Details and advantages of the present invention will become more apparent from the following description of the invention presented below with reference to the accompanying drawings.

The presented examples are only an illustration, providing an understanding of the principle of the present invention for a specialist, in the framework of which various modifications are possible, and they do not serve to limit the scope of claims, which is determined only by the claims of the present invention.

DESCRIPTION OF DRAWINGS

Figure 1 is a longitudinal horizontal sectional view of a shotgun section with a cartridge in the chamber before firing;

FIG. 2 is a section along the line II-II in FIG. one;

figure 3 is a longitudinal horizontal section of a section of the gun during the extraction of a short sleeve;

figure 4 is a longitudinal horizontal section of a section of the gun in contact with a long sleeve with a reflector;

5 is a longitudinal horizontal section of a section of the gun during the extraction of a long sleeve;

FIG. 6 is a diagram of an isometric view of a reflection mechanism mounted on a barrel sleeve;

FIG. 7 is an isometric view of a reflection mechanism mounted on a barrel sleeve;

FIG. 8 is a view A of FIG. 7;

FIG. 9 is a transverse section taken along line IV-IV in FIG. 8;

FIG. 10 is a cross-sectional view taken along line III-III of FIG. 8;

FIG. 11 is a longitudinal section along line II-II of FIG. 8;

FIG. 12 is an isometric view of a reflection mechanism mounted on a barrel sleeve in an alternative embodiment of a reflection mechanism.

In the accompanying figures of the drawings, the positions related to the same elements have a common designation.

The attached FIG. 1-5 explain the operation of the reflection mechanism according to the present invention. In FIG. 1-5 shows a part of a smooth-bore firearm having a barrel 1 with a sleeve in which a chamber 2 is located, a receiver 3 for accommodating weapon mechanisms, a bolt 4 moving longitudinally in the receiver to lock the barrel, an ejector 5 mounted in the bolt, for extracting the spent sleeve 6 from the barrel chamber by the tooth 11, as well as a reflection mechanism located in the barrel sleeve with a reflector 7 having a tooth 12 for acting on said sleeve 6 to reflect it outside the box through the extraction window 8 (1, 2).

As shown in FIG. 1, the reflector 7 is preloaded by the spring 9 in the initial position, while the reflector has the possibility of longitudinal movement in the grooves 10 relative to the receiver (see figure 2).

The following describes the operation of the reflector according to the invention.

When applying a short sleeve, as shown in figure 1, after firing the bolt 4 begins to move from the front position to the rear position in the usual way, depending on the type of action of the weapon (inertial mechanism, gas exhaust mechanism, the use of recoil of the barrel, etc.), the ejector 5 engages with the tooth 11 the edge of the spent sleeve 6 and removes it from the chamber 2. With further movement of the shutter 4, as shown in FIG. 3, the short sleeve abuts the tooth 12 of the reflector 7 and, rotating around the tooth 11 of the ejector 5, leaves the receiver 3 h cut extraction window 8.

When using a long sleeve, as shown in figure 4, at the moment of contact of the sleeve with the tooth 12 of the reflector 8, the front part 13 of the sleeve 6 is still in the chamber 2 of the barrel and prevents rotation of the sleeve relative to the tooth 11 of the ejector 5, so the shutter 4 continues to move, removing the sleeve 6 from chamber 2.

The sleeve 6, in turn, acting on the tooth 12 of the reflector 7, begins to move it from its original position, compressing the spring 9 of the reflector. As can be seen from figure 5, when the front part 13 of the sleeve comes out of the barrel chamber, the sleeve will be able to rotate relative to the tooth 11 of the ejector 5 and leave the receiver 3 through the extraction window 8. The spring 9 moves the reflector 7 to its original position.

The subsequent FIG. 6-11 in more detail depict the design of the reflection mechanism and its installation on the barrel coupling.

In FIG. 6 shows the individual components of the reflection mechanism mounted on the barrel sleeve. To position the reflection mechanism, the barrel sleeve is provided with curly grooves 10 and vertical curly grooves 19 (see Figs. 7, 10, 11).

The reflection mechanism includes a reflector 7, a contactor 16 and a reflector spring 9.

Mentioned reflector 7, as shown in Fig.6, is made with side surfaces corresponding to the figured grooves 10, an opening 14 for accommodating the spring 9 of the reflector, as well as a groove 15 located at the rear of the reflector 7 and made to interact with the contactor 16. In the rear of the part, the reflector 7 has a tooth 12 for interacting with the reflected sleeve (see Figs. 1-5, 11). During operation, the reflector 7 by means of the tooth 12 for influencing the spent sleeve ensures its reflection outside the box through the extraction window 8 of the firearm.

Mentioned contactor 16, designed to install the reflector 7 and spring 9 on the sleeve of the barrel 1, contains an end expanded part 18 made to interact with the vertical curly grooves 19 of the sleeve of the barrel, while the size of the end extended part 18 of the contactor 16 is set smaller than the smallest size of the vertical figured groove 19 for reliable placement in it with preventing horizontal movement of the contactor 16 (see Fig. 7, 8).

The front end 17 of the contactor 16 is designed to be placed in the groove 15 of the reflector 7 to prevent its vertical movement (Fig. 8) and also has a protrusion 20, which is configured to enter the inner diameter of the coils of the spring 9 to prevent horizontal movement of the front end 17 of the contactor (Fig. . 8, 11).

In a possible alternative embodiment, the protrusion 20 extends along the entire length of the reflector 7 and enters the hole 21 in the head of the reflector (Fig. 12).

The groove 15, made in the rear of the reflector, when interacting with the front end 17 of the contactor 16 holds the contactor from vertical movement, but allows you to move in the longitudinal direction relative to the reflector to ensure its operation (see Fig. 8, 9).

As shown in Figs. 7, 8, in the state of mounting on the flange of the barrel 1 of a smooth-bore firearm, the reflector 7 is fixed in the curly grooves 10 by means of a spring 9 located in the hole 14 inside the reflector to return the reflector to its original position, and a contactor 16 located in vertical shaped grooves 19, while the reflector can perform the aforementioned in connection with FIG. 1-5 longitudinal movement along the axis of the bore from the starting position at which the short sleeve is extracted to the rear position when the long sleeve is extracted.

Thus, reliable extraction of the liner of any size and stable operation of the weapon are achieved.

In one embodiment, the hole 14 may be partially open so that the spring cannot fall out of the reflector, as shown in FIG. 6 and 7.

To disassemble the reflection mechanism in the mounting state, as shown in FIG. 7 and 8, it is necessary to move the contactor 16 so that the end extended part 18 can exit the curly grooves 19 of the coupling 1 and take the back of the contactor 16 to the side to exit it from the grooves 19. After this, the action of the spring 9 moves the contactor 16 back and separates it from the coupling . The reflector 7 is no longer held in the figured groove 10 of the sleeve 1 and is removed along with the spring 9. Mounting the reflection mechanism on the barrel sleeve of the smooth-bore firearm from the position shown in FIG. 6 is carried out in the reverse order.

In an embodiment of the reflection mechanism, in which the protrusion 20 of the contactor 16 enters the hole 21 in the head of the reflector 7, the assembly of the mechanism is carried out by putting the spring 9 on the protrusion 20 of the contactor 19, inserting the reflector 7 into the grooves 10 of the barrel coupling 1 until it stops. After that, the front end of the protrusion 20 of the contactor 16 is placed in the hole 21 of the reflector 7, compressing the spring 9, while the back of the contactor 16 is pressed against the cylindrical surface of the barrel coupling 1. With further advancement of the contactor 16 and compression of the spring 9, the end extended part 18 of the contactor 16 is suitable for vertical curly groove 19 of the sleeve 1 and further, the contactor 16 takes its working position. The dismantling of the reflection mechanism from the barrel sleeve of a smooth-bore firearm in this embodiment of the reflection mechanism is carried out in the reverse order.

The present invention is disclosed with respect to smooth-bore firearms, in particular smooth-bore guns, but can be suitably adapted by a specialist for other weapons with the effect of increasing the reliability of the use of weapons and reliable extraction of shells of different lengths.

Claims (7)

1. The reflection mechanism for smooth-bore firearms containing a barrel (1) with a barrel clutch in which a chamber (2) is located, a receiver (3) for accommodating weapon mechanisms, a bolt (4) moving longitudinally in the receiver (3) for locking the bore, the ejector (5) installed in the shutter (4), for removing the spent sleeve from the chamber (2) of the barrel, while the barrel coupling for the location of the reflection mechanism is provided with curly grooves (10) and vertical curly grooves (19), and reflection mechanism includes itself: a movable reflector (7) made with the possibility of interaction with curly grooves (10) and longitudinal movement relative to the receiver from the initial position at which the short sleeve is extracted to the rear position, when the long sleeve is extracted, the contactor (16) interacting with grooves (10, 19) for mounting the reflector (7) on the barrel sleeve (1) and ensuring longitudinal movement of the reflector (7), and the spring (9) of the reflector allowing longitudinal movement of the reflector (7) between the initial and rear positions in the the state of the reflection mechanism and the abstraction of the contactor (16) during dismantling of the reflection mechanism. 2. The reflection mechanism according to claim 1, in which the spring (9) of the reflector is placed in the hole (14) of the reflector (7). 3. The reflection mechanism according to claim 2, in which the hole (14) of the reflector (7) is made partially open. 4. The reflection mechanism according to claim 1, in which a groove (15) is provided at the rear of the reflector to accommodate the contactor (16). 5. The reflection mechanism according to claim 1, in which the contactor (16) has an end expanded part (18) made with a size smaller than the smallest size of the vertical curly groove (19) for placement in it to prevent horizontal movement of the contactor (16). 6. The reflection mechanism according to claim 1, in which the front end (17) of the contactor (16), designed to be placed in the groove (15) of the reflector (7), has a protrusion (20) to enter the inner diameter of the coils of the spring (9) of the reflector . 7. The reflection mechanism according to claim 1, in which the front end (17) of the contactor (16), designed to be placed in the groove (15) of the reflector (7), has a protrusion (20) for entering the inner diameter of the coils of the spring (9) of the reflector and into the hole (21) provided in the head of the reflector (7).

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