RU2778184C1 - Small arms - Google Patents

Abstract

FIELD: weaponry.

SUBSTANCE: small arms contains a body with a bolt frame installed in it, a trigger mechanism including a trigger and a trigger mounted on the axis, a fuse with flags that closes the device. The closing device comprises a shutter hinged to the rear lever and the front lever, with the possibility of plane-parallel movement, while the rear lever is mounted on the fuse with the possibility of rotation, the front lever is mounted on the axis of the trigger with the possibility of rotation, a protrusion is made on the front lever that interacts with the trigger.

EFFECT: improving the performance and safety of weapons.

5 cl, 12 dwg

Description

The invention relates to small arms mechanisms, and specifically to safety mechanisms with closing devices.

The 5.45 mm AK-74 Kalashnikov assault rifle is known, which combines the functions of a fuse and a firing mode translator (see “5.45 mm Kalashnikov assault rifle AK-74, AK-74M, AKS-74, AKS-74U, AK- 74N, AKS-74N, AK-74N1, AKS-74N1, AK-74N2, AKS-74N2, AK-74N3, AKS-74N3, AKS-74UN2 and 5.45 mm Kalashnikov machine gun RPK-74, RPKS-74, RPK -74N, RPKS-74N, RPK-74N1, RPKS-74N1, RPK-74N2, RPKS-74N2, RPK-74N3, RPKS-74N3 "Manual, M .: Military Publishing House, 2001). The translator-fuse of the firing modes includes a shield rigidly connected to the sector. On the shield there is a protrusion for the finger, with the help of which the shield rotates along with the sector. Additionally, the shield performs the function of a dust shutter, which, in the protection position, closes the cutout of the receiver cover.

The disadvantage of this device is the inconvenience of operation due to the one-sided location of the translator and the inability to switch firing modes with the hand holding the weapon by the fire control handle, as well as low security, since when the shield is affected, the translator-fuse can be moved to the firing position.

Known translator-fuse firing modes (RF patent for invention No. 2701405 dated 04/01/2019, IPC F41A 17/46), installed in the receiver, including a translator with flags, a cam, a safety shield mounted on the axis. The safety shield in the “protection” position closes the slot in the receiver cover under the reloading handle, preventing the moving parts of the automation from moving.

The disadvantages of this device are high efforts when switching the fuse and high manufacturing accuracy of the cam and the safety shield, as well as low security, since when the shield is acted upon, the translator-fuse can be moved to the firing position.

The objective of the invention is to improve the ease of use and safety of the weapon.

The technical result consists in the presence of a closing device that, when the weapon is put on the fuse, closes the groove for passing the bolt handle, while allowing you to visually check the presence of a cartridge in the chamber when the fuse is on without the risk of reflecting the cartridge or cartridge case, and also serves to protect the weapon mechanisms from contamination from the outside , and in the ability to control the fuse without taking your hand off the control handle, both on the left and on the right side of the weapon.

This task is achieved by the fact that small arms contains a body with a bolt carrier installed in it, a trigger mechanism including a trigger and a trigger mounted on the axis, a fuse with flags that closes the device. The closing device comprises a shutter hinged to the rear lever and the front lever, with the possibility of plane-parallel movement, while the rear lever is mounted on the fuse with the possibility of rotation, the front lever is mounted on the axis of the trigger with the possibility of rotation, a protrusion is made on the front lever that interacts with the trigger .

Protrusions are made on the rear lever, interacting with the housing protrusion.

The fuse has guide cutouts for setting the flag.

A spring-loaded fuse socket is installed in the fuse hole with the possibility of blocking the flag.

A spring-loaded yoke is installed in the body, interacting with the holes made on the fuse.

The essence of the invention is illustrated by drawings, which show:

in fig. 1 - left side view of small arms (fuse on);

in fig. 2 - left side view of small arms (fuse off);

in fig. 3 - right side view of small arms (fuse on);

in fig. 4 - general view of the translator-fuse;

in fig. 5 - general view of the closing device;

in fig. 6 - top view of the body with a trigger mechanism;

in fig. 7 - A-A in Fig.6;

in fig. 8 - B-B in Fig. 6;

in fig. 9 - B-B in Fig. 6;

in fig. 10 - longitudinal section of small arms (fuse included):

in fig. 11 - top view of small arms;

in fig. 12 - Г-Г in Fig. 11 (safety off, trigger pulled, hammer pulled).

The small arms contains a body 1, in which a firing mechanism 2, a bolt frame 3 with a bolt 4, a closing device 5, a translator-fuse 6 are located.

The bolt carrier 3 on the left side has a bolt carrier handle 7.

On the right side of the body 1, a window 8 is made to reflect the cartridge cases, on the left side of the body 1, a groove 9 is made for passing the handle 7 of the bolt frame. The window 8 for reflecting the cartridge cases is closed by the bolt frame 3 in the extreme forward position of the moving parts.

The trigger mechanism 2 includes a trigger 10 with a mainspring 11, a trigger lever 12, a sear 13 and a trigger 14 mounted on the axis 15 of the trigger.

Translator-fuse 6 consists of a fuse 16, a right flag 17, a left flag 18, a fuse holder 19 with a spring 20 and a pin 21. The fuse 16 is a shaft. The right flag 17 and the left flag 18 serve to control the fuse 16. The shape of the flags is selected from the condition of convenience of switching firing modes with the fingers of the hand holding the weapon by the control handle (not shown). The pin 21 limits the socket 19 of the fuse and prevents it from exiting the fuse 16. On the fuse 16 there is a platform 22 for interacting with the trigger 14, at least two holes 23, a hole 24 for the socket 19 of the fuse, flats 25 for interacting with the closing device 5 and guide cutouts 26 for installing the left flag 18.

The fuse 16 with the right flag 17 passes through the body 1 and is blocked from falling out by the left flag 18. The left flag 18 has a hole for the fuse holder 19. The left box 18 is installed on the fuse 16 along the guide cutouts 26 of the fuse and is blocked by the socket 19 of the fuse. Below the fuse 16 in the housing 1 there is a socket 27 with a spring 28, which enters the holes 23 on the fuse 16, in the "fire" and "protection" positions. Thus, a force is created when switching fuse 16.

The closing device 5 is located on the left side of the body 1, consists of a shutter 29, a rear lever 30, a front lever 31 and axles 32. The shutter 29 is pivotally connected on axles 32 to the rear lever 30 and the front lever 31. designs. The rear arm 30 and the front arm 31 are rotatable. The rear lever 30 is mounted on the fuse 16, connecting its hole 33 with the flats 34 in such a way that after installation, the rear lever 30 and the fuse 16 rotate together. The front lever 31 with its hole 35 is mounted on the axis 15 of the trigger. When turning on - off the fuse, the rear lever 30 and the front lever 31 rotate together and parallel to each other. At the same time, the shutter 29 performs a plane-parallel movement, opening and closing the groove 9 for the passage of the handle 7 of the bolt frame. On the rear lever 30 there are curly protrusions 36, which, when the fuse 16 is turned, abut against the protrusion 37 of the housing 1, thus limiting the rotation of the rear lever 30 and the front lever 31 to the two extreme positions of the fuse 16 - "safety" and "fire". On the front lever 31, a protrusion 38 is made to interact with the trigger 10 when the fuse 16 is set to the "protection" position. The body 1 and the end of the flat 25 of the fuse prevent the lateral movement of the rear lever 30. The body 1 and the lever 12 of the trigger mechanism prevent the lateral movement of the front lever 31.

To install the closing device 5 in the housing 1, it is necessary to place the curtain 29 assembled with the rear lever 30 and the front lever 31 so that the hole 35 in the front lever 31 coincides with the hole for the axis 15 of the trigger. Insert the axis 15 of the trigger through the body 1, the trigger 14 and the front lever 31. With the trigger 14 pressed, insert the fuse 16 with the right flag 17 through the hole in the body 1. The flats 25 on the fuse 16 must then coincide with the flats 34 of the hole 33 of the rear lever 31. With the fuse socket 19 pressed, insert the left flag 18 along the guide cutouts 26 of the fuse 16 until the holes for the fuse socket 19 on the left flag 31 and fuse 16 are aligned, and the fuse socket 19 fits into the hole of the left flag 18.

When the fuse 16 is turned to the “safety” position, the bolt carrier 3 with the bolt 4 are in the extreme forward position. Trigger 10 is down. The trigger lever 12 is off. The shutter 29 closes the groove 9 for the passage of the handle 7 of the bolt carrier. The socket 27 is located in the hole 23 of the fuse 16, and the curly protrusion 36 of the rear lever 30 rests against the protrusion 37 of the body 1. When the bolt carrier 3 with the bolt 4 is cocked, the bolt carrier 3 will cock the trigger 10. The trigger 10 will rest against the upper protrusion of the blocked trigger 14. When you press the trigger 14, it will rest against the platform 22 of the fuse 16.

Before firing, when fuse 16 is in the "safety" position. The trigger 10 is cocked, stands on the cocking of the trigger 14. The bolt carrier 3 with the bolt 4 are in the extreme forward position. The trigger lever 12 is off. When you try to cock the bolt frame 3 with the bolt 4, the bolt frame 3 will cock the trigger 10. The trigger 10 will rest against the protrusion 38 of the front lever 31. In this position of the bolt frame 3 with the bolt 4, it is impossible to reflect the sleeve or cartridge, but you can visually check the presence of a cartridge in the chamber . When you press the trigger 14, it will rest against the platform 22 of the fuse 16.

When the fuse 16 is turned to the “fire” position, the rear lever 30 and the front lever 31 are rotated, while the shutter 29 performs a plane-parallel movement, opening the groove 9 for the passage of the handle 7 of the bolt carrier. Gestok 27 falls into the hole 23 on the fuse 16, and the curly protrusion 36 of the rear lever 30 abuts against the protrusion 37 of the body 1. When the bolt frame 3 moves back with the bolt 4, the bolt frame 3 starts to cock the trigger 10. The trigger 10 stands on the cocking lever 12 of the trigger mechanism . The trigger 14 under the action of the mainspring 15 will return to its place. When the bolt frame 3 moves forward with the bolt 4, the bolt frame 3 will press the trigger lever 12 down, and the trigger 10 will cock the trigger 14. When you press the trigger 14, it will release the trigger 10, which, under the action of the mainspring 15, will hit on the drummer (not shown) of the shutter 4.

Thus, the proposed design makes it possible to increase the ease of use and safety of the weapon due to the presence of a closing device that, when the weapon is put on the fuse, blocks the groove for the bolt handle, while allowing you to visually check the presence of a cartridge in the chamber with the fuse turned on without the risk of reflecting the cartridge or cartridge case, as well as serving to protect the mechanisms of the weapon from contamination from the outside, and the ability to control the fuse without taking your hand off the control handle, both on the left and on the right side of the weapon.

Claims (5)

1. Small arms containing a body with a bolt frame installed in it, a trigger mechanism including a trigger and a trigger mounted on the axis, a fuse with flags, a closing device, characterized in that the closing device contains a shutter hinged to the rear lever and front lever, with the possibility of plane-parallel movement, while the rear lever is mounted on the fuse with the possibility of rotation, the front lever is mounted on the axis of the trigger with the possibility of rotation, a protrusion is made on the front lever that interacts with the trigger. 2. Small arms according to claim 1, characterized in that the rear lever has protrusions that interact with the protrusion of the body. 3. Small arms according to claim 1, characterized in that the fuse has guide cutouts for setting the flag. 4. Small arms according to claim 1, characterized in that a spring-loaded fuse socket is installed in the fuse hole with the possibility of blocking the flag. 5. Small arms according to claim 1, characterized in that a spring-loaded yoke is installed in the body, interacting with the holes made on the fuse.

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