RU2672145C1 - Small arms - Google Patents

Abstract

FIELD: small arms.

SUBSTANCE: invention relates to automatic small arms. Small arms contains a receiver, a barrel, a gas tube with a lining installed on it and a shank. Shank is installed with the provision of an annular gap between the inner surface of the shank and the outer surface of the barrel. Gas pipe is installed in console manner. Pad and shank are connected and fixed relative to the receiver with the axis passing through the holes in the shank and receiver. Installation with fixing the shank and lining can be performed using an additional sleeve, fixed relative to the receiver with the axis passing through the holes in the forearm and the sleeve. Shank and pad can be made in one piece.

EFFECT: technical result – increased accuracy of fire and operational characteristics.

4 cl, 8 dwg

Description

The invention relates to small arms and can be used in automatic small arms, devices structurally similar to small arms.

The famous Kalashnikov assault rifle (see Manuals on small arms business. Military Publishing House, M., 1973, p. 148, Fig. 25, Fig. 36), selected as the closest analogue, containing a receiver, barrel, gas pipe, pad installed on a gas pipe, forend. The rear end of the fore-end is installed in the hole in the receiver, and the front end is fixed to the barrel using a coupler.

The disadvantage of this design is that the forend at the time of the shot under the action of inertial forces acts through the coupling on the barrel, changes the nature of its vibrations, thereby impairing the accuracy of firing from weapons.

The task of the invention is to improve the accuracy of fire, increase the operational characteristics of small arms, including simplifying the design and improving the convenience of servicing weapons.

The technical result consists in eliminating the contact of the forend with the barrel and, as a result, in the absence of influence on the oscillations of the barrel at the time of the shot, the reaction force from the support or hands of the shooter, as well as in simplifying the maintenance of the weapon during operation due to the introduction of the console fixing in the barrel design the gas tube box and the forend attachment with the overlay directly to the receiver with the provision of an annular gap between the forend and the barrel.

This object is achieved in that the small arms comprise a receiver, a barrel, a gas pipe, a pad mounted on a gas pipe, and a forearm. The gas tube is fixed in the receiver cantilever, and the pad with the forearm are connected and fixed relative to the receiver by means of an axis interacting with the holes in the forend and the receiver. The forend is installed with an annular gap between the inner surface of the forend and the outer surface of the barrel. The lining with the forearm can be made in the form of a single part. The small arms may further comprise a sleeve fixed to the receiver, and the cover with the forearm is fixed relative to the receiver by means of an axis interacting with the holes in the forearm and the sleeve.

The invention is illustrated by drawings, which depict:

in FIG. 1 - general view of the weapon (pad and forend are connected by a detachable connection, the gas tube is fixed in the receiver);

in FIG. 2 - AA in FIG. 1 (the axis is installed in the fore-end hole and the receiver hole);

in FIG. 3 - BB in FIG. one;

in FIG. 4 - general view of the weapon (pad and forend are connected by a detachable connection, the gas pipe is fixed through the clutch in the receiver);

in FIG. 5 - general view of the weapon (pad and forend are made as a single part);

in FIG. 6 - BB in FIG. 5;

in FIG. 7 - general view of the weapon (the pad and the forend are connected by a detachable connection, the gas tube is fixed in the receiver, the sleeve is fixedly fixed in the receiver);

in FIG. 8 - DG in FIG. 7 (the axis is installed in the forend hole and the sleeve hole).

The small arms comprise a receiver 1, barrel 2, gas pipe 3, cover 4 and forend 5. The cover 4 is tightly mounted on the gas tube 3 and connected to the forearm 5 by a detachable connection 6, for which grooves 7 are made in the lower part of the cover 4 and interact with protrusions 8 made on the forearm 5. The forearm is mounted on the weapon with an annular gap between the inner surface of the forearm 5 and the outer surface of the barrel 2. The gas pipe 3 can be cantilevered in the receiver 1 or cantilevered with the receiver 1 through the clutch 9. In the rear of the forearm 5, a hole 10 is made and a spring 11 is installed. The spring 11 is a leaf spring, one end of which is fixed in the forearm 5. The lining 4 and forearm 5 are fixed in the receiver 1 by the axis 12, which is installed in hole 10 of the forearm 5 and hole 13 made in the receiver, or hole 10 of the forearm 5 and hole 14 made in the sleeve 15, which is fixedly mounted relative to the receiver 1. The axis 12 is made with a groove 16, which interacts with the spring 11. Overlay 4 and the forearm 5 can be made in a single piece - a tubular forearm 17.

To install the lining 4 and the forearm 5 on the weapon, it is necessary to install the overlay 4 on the gas tube 3. Then insert the tabs 8 of the forearm 5 into the grooves 7 of the lining 4 and advance the forearm 5 until the hole 10 is aligned with hole 13 in the receiver 1 or hole 14 in the sleeve 15. Then install the axis 12, having previously pressed the working end of the spring 11. Having returned to its original position, the working end of the spring 11 will interact with the groove 16, preventing the axis 12 from moving along its own axis. In this case, an annular gap is provided between the outer surface of the barrel 2 and the inner surface of the forearm 5.

To remove the forearm 5 from the weapon, it is necessary to squeeze the working end of the spring 11, remove the axis 12 from the hole 10 and the hole 13 or 14, and remove the forearm 5. Then remove the cover 4 from the gas tube 3.

To install the tubular forearm 17 on the weapon, you need to put it on the gas tube 3 and push it through until the hole 10 is aligned with the hole 13 in the receiver 1 or with the hole 14 in the sleeve 15. Then install the axis 12, having previously pressed the working end of the spring 11. Returning in the initial position, the working end of the spring 11 will interact with the groove 16, preventing the movement of the axis 12 along its own axis. In this case, an annular gap is provided between the outer surface of the barrel 2 and the inner surface of the forearm 5.

To remove the tubular forearm 17 from the weapon, it is necessary to squeeze the working end of the spring 11, remove the axis 12 from the hole 10 and the hole 13 or hole 14, and remove the tubular forearm 17 from the gas tube 3.

The proposed design of the site of small arms provides increased accuracy of fire and increase the operational characteristics of weapons.

Claims (4)

1. Small arms containing a receiver, barrel, gas tube, a pad mounted on the gas tube, and the forend, characterized in that the gas tube is mounted in the receiver console, and the forearm is connected and fixed relative to the receiver via an axis interacting with holes in the forend and receiver. 2. Small arms according to claim 1, characterized in that the fore-end is installed to provide an annular gap between the inner surface of the fore-end and the outer surface of the barrel. 3. Small arms according to claim 1, characterized in that the lining with the fore-end is made in the form of a single part. 4. Small arms according to claim 1, characterized in that it further comprises a sleeve fixedly mounted relative to the receiver, and the cover with the fore-end is fixed relative to the receiver by means of an axis interacting with the holes in the fore-end and the sleeve.

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