RU146889U1 - FIREARMS - Google Patents

Abstract

1. A firearm containing a receiver with a seat for installing removable barrels for cartridges of various groups of calibers and a seat for installing replaceable magazines for cartridges of appropriate calibres, a bolt frame with a seat for installing removable bolts for cartridges of relevant calibers, characterized in that a shutter in the form of a plate with a protrusion in the front part included in the groove of the shutter head is installed between the shutter frame and the shutter, while the shutter is mounted with the possibility of alternating scheniya of grooves contact the bolt and the lower surface of the upper cartridge magazina.2. Firearms according to claim 1, characterized in that the curtain is installed in the grooves of the lower part of the bolt frame. A firearm according to claim 1, characterized in that it is possible to install in the receiver a removable barrel with a threaded channel for cartridges of various groups of calibers, a removable magazine and a removable bolt for a cartridge of the corresponding caliber. Firearms according to claim 1, characterized in that it is possible to install in the receiver a removable barrel with a smooth channel for a cartridge of a certain caliber, a removable magazine and a removable bolt for a cartridge of the corresponding caliber.

Description

The utility model relates to weapons technology, namely to small arms with interchangeable barrels and can be used mainly in civilian weapons.

Known self-loading hunting rifle VPO-201 (see magazine "Kalashnikov" No. 6 for 2006), containing a receiver with a seat for installing interchangeable barrels of various lengths with a smooth channel for cartridges of 12 caliber, an integral barrel under-barrel magazine for cartridges of 12 caliber , a shutter frame with a seat for installing the shutter under cartridges of 12 caliber.

The disadvantage of this gun is the inability to use it as a firearm for firing ammunition of various calibers used in weapons with a rifled bore.

Known hunting carbine Blaser R8 (see the magazine "Kalashnikov" No. 11 for 2011, p. 18-24), containing a receiver with a seat for installing removable barrels with a threaded channel for cartridges of various groups of calibers (caliber group "Mini" , “Standard”, “Magnum”, etc.) and a seat for installing removable magazines under the cartridges of the respective caliber groups, a slide frame with a seat for installing removable bolt larvae under the cartridges of the corresponding caliber groups.

The disadvantage of this carbine is the inability to use it as a firearm for firing ammunition of a certain caliber, used in smoothbore weapons.

The task to which the claimed technical solution is directed is to create firearms for firing various types of cartridges (for rifled and smooth-bore weapons), based on one receiver, with the possibility of installing replaceable barrels with a rifled channel for cartridges of various groups of calibers, and also an interchangeable barrel with a smooth channel for a cartridge of a certain caliber, with the installation of interchangeable magazines and interchangeable bolts under cartridges of the corresponding calibers.

This object is achieved in that a firearm containing a receiver with a seat for installing interchangeable barrels with a threaded channel for cartridges of various groups of calibers and a seat for installing removable magazines for cartridges of appropriate calibers, a bolt frame with a seat for mounting bolts for cartridges of the corresponding calibers, equipped with a movable shutter located between the bolt frame and the shutter. The shutter, made in the form of a plate with a protrusion in the front, is installed in the grooves in the lower part of the shutter frame, and with the front protrusion in the groove of the shutter head. The shutter has the ability to move in the grooves of the shutter frame when unlocking and locking the shutter, blocking the cavity between the shutter head and the front end of the shutter frame. In addition, the shutter contacts the lower surface with the upper cartridge of the magazine during rollback and rollback of the shutter frame with the shutter, eliminating the possibility of delays (distortions, poking, jamming) that affect the reliable and stable functioning of firearms. The use of a curtain allows the use of cartridges for smooth-bore weapons of a certain caliber in firearms, for which a removable barrel with a smooth channel for a cartridge of a certain caliber, a removable magazine and a removable bolt for a cartridge of the corresponding caliber are installed in the receiver.

The technical result is an extension of the functionality of a firearm for firing ammunition of various types (for rifled and smoothbore weapons), based on one receiver.

The technical result is achieved due to the design of firearms containing a receiver with a seat for installing removable barrels for cartridges of various groups of calibers and a seat for installing removable magazines for cartridges of appropriate calibres, a bolt frame with a seat for installing removable bolts for cartridges of relevant calibers, a shutter is installed between the shutter frame and the shutter in the form of a plate with a protrusion in the front part that enters the groove of the shutter head, while the shutter installed with the ability to move along the grooves of the slide frame and contact the bottom surface with the upper cartridge of the magazine when rolling and rolling the slide frame with the shutter; the shutter is installed in the grooves of the lower part of the shutter frame. With this design, it is possible to install in the receiver a removable barrel with a rifled channel for cartridges of various groups of calibers, a removable magazine and a removable shutter for a cartridge of the corresponding caliber, or it is possible to install in the receiver a replaceable barrel with a smooth channel for a cartridge of a certain caliber, a removable magazine and a removable shutter under the cartridge of the appropriate caliber.

The essence of the technical solution is illustrated by the drawings in FIG. 1-5, which shows:

in FIG. 1 - firearms, the main view with a slit;

in FIG. 2 - shutter frame with shutter and curtain;

in FIG. 3 is a section AA in FIG. one;

in FIG. 4 - contact diagram of the upper magazine cartridge with the shutter during rollback;

in FIG. 5 is a diagram of the contact of the upper cartridge of the store with the shutter during coasting, where

1 - receiver;

2 - interchangeable barrel;

3 - shift store;

4 - shutter frame;

5 - interchangeable shutter;

6 - stock;

7 - nut fixing the barrel 2;

8 - forend;

9 - latch;

10 - curtain;

11 - upper cartridge;

12 - the next cartridge;

13 - spring-loaded feeder.

An example implementation.

The firearm contains a receiver 1 having a seat A for installing removable shafts 2 and a seat B for installing removable magazines 3, a bolt frame 4 with a seat B for installing removable bolts 5. In the receiver 1 is fixedly mounted rod 6, on which a nut 7 is screwed on, fixing the barrel 2 together with the forend 8 in the receiver 1. The magazine 3 is fixed in the receiver 1 by a latch 9. A shutter 10 is installed in the grooves of the shutter frame 4, a front protrusion entering the groove of the shutter head 5.

The firearm works as follows: when the bolt frame 4 moves with the bolt 5 backward (rollback), the upper cartridge 11 of the magazine 3 contacts at the beginning of the movement with the lower surface G of the bolt frame 4, then with the lower surface D of the shutter 10 and then with the shutter head 5. When the bolt frame 4 moves with the shutter 5 forward (on the move), the shutter 5 captures the upper cartridge 11 and moves it into the barrel chamber 2, the next cartridge 12, under the action of the spring-loaded feeder 13, rises up and starts to contact the lower surface D of the shutter 10, and then with the bottom surface of the shutter frame 4.

Claims (4)

1. A firearm containing a receiver with a seat for installing removable barrels for cartridges of various groups of calibers and a seat for installing replaceable magazines for cartridges of appropriate calibres, a bolt frame with a seat for installing removable bolts for cartridges of relevant calibers, characterized in that a shutter in the form of a plate with a protrusion in the front part included in the groove of the shutter head is installed between the shutter frame and the shutter, while the shutter is mounted with the possibility of alternating scheniya of grooves contact the bolt and the lower surface of the upper cartridge store. 2. Firearms according to claim 1, characterized in that the shutter is installed in the grooves of the lower part of the bolt frame. 3. Firearms according to claim 1, characterized in that it is possible to install in the receiver a removable barrel with a threaded channel for cartridges of various groups of calibers, a removable magazine and a removable bolt for a cartridge of the corresponding caliber. 4. Firearms according to claim 1, characterized in that it is possible to install in the receiver a removable barrel with a smooth channel for a cartridge of a certain caliber, a removable magazine and a removable bolt for a cartridge of the corresponding caliber.

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