RU2610739C2 - Method of manufacturing automatic small arms - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: group of inventions relates to small arms, particularly, to automatic firearms and method of its production. Automatic gun is assembled as per the bullpup and comprises a breech frame, a firing mechanism, a pressure element, a lengthwise tie-rod and a standard trigger. Manufacturing method of the automatic gun means that the trigger is located behind the firing mechanism, the lengthwise tie-rod has a front end, an elongated part and a rear end, the pressure element is made with the possibility of installation, in fact, on the trigger pin, the upper end of the pressure element is designed to be articulated with the lengthwise tie-rod rear end, the upper end of the trigger is made to be articulated with the lengthwise tie-rod front end, and the lower end is a grip for a finger. Pressure element, the trigger and the lengthwise tie-rod are made and set so, that the elongated part of the lengthwise tie-rod completely lies inside the breech frame on the left from the vertical plane passing through the longitudinal axis of the weapon.

EFFECT: provided is simplified design of the weapon.

5 cl, 6 dwg

Description

FIELD OF THE INVENTION

The invention relates to the field of small arms, in particular, to methods for manufacturing automatic firearms according to the bullpup pattern from samples arranged according to the traditional pattern.

BACKGROUND

Known trigger node for the trigger mechanism of the weapon according to the "bullpup", containing the trigger according to the "bullpup", connected by a longitudinal rod located inside the receiver, with a standard trigger, characterized in that the rod is made Z- figurative and placed to the left of the vertical plane passing through the longitudinal axis of the weapon under the power bridge and above the axis of the self-timer and the axis of the trigger of the receiver (RF patent for invention No. 2525464, see also RF patent for utility model No. 123920).

A disadvantage of the known trigger unit is that the machine gun, arranged according to the bullpup scheme, obtained as a result of modifying the machine gun with the traditional layout, has actually two triggers, as a result of which the automatics can fire in cases when the user accidentally touches the standard trigger elements of equipment or branches of trees and shrubs when moving on the ground.

Until now, this problem has been solved by installing a protective cover that protects the standard trigger from accidental touches (see RF patent for utility model 141215). However, such a design solution involves the manufacture and installation of an additional part, which increases the complexity and material consumption of the weapon modification method.

The objective of the present invention is to eliminate the problem of "two triggers" without the use of any protective covers.

SUMMARY OF THE INVENTION

The terms, expressions and abbreviations used in this text are given the following meaning.

Under the adjective "full-time" in this text we mean an element of an automatic machine gun or machine gun used in the method described below for subsequent modification, in particular by equipping a machine gun with elements similar in function.

Under the thrust in this text refers to an elongated part, designed to connect the pressure element and the trigger.

The remaining terms and expressions are used in the usual sense known to those skilled in the art.

The technical result of the present invention consists in the fact that when using a pressure element without a hook, the safety of using an automatic firearm arranged according to the bullpup scheme obtained by modifying an automatic firearm with a traditional layout is ensured even without the need to install a protective casing.

The above problem is solved due to the fact that in the proposed method for the manufacture of automatic firearms arranged according to the bullpup scheme, they use:

1) an automatic firearm in which the standard trigger is located behind the striking mechanism;

2) a longitudinal rod having a front end, an elongated part and a rear end,

3) a fingerless element without a finger, configured to be mounted substantially on the axis of a standard trigger, the upper end of which (the pressure element) is pivotally connected to the rear end of said longitudinal rod and acts on said percussion mechanism,

4) a trigger, the upper end of which is made with the possibility of articulation with the front end of the said longitudinal traction, and the lower end is a finger hook, in which:

a) provide a hole for the trigger in the lower part of the receiver of said weapon at a distance from the hole for the regular trigger in front of the said percussion mechanism,

b) establish said pressure element essentially on the axis of said regular trigger,

c) set said trigger with the possibility of rotation about an axis perpendicular to a vertical plane passing through the longitudinal axis of the weapon, passing said finger grip through said trigger hole, so that this hook is located outside the receiver,

g) connect the hinges of the pressure element and the trigger by means of longitudinal traction, while

the pressure element, the trigger and / or the longitudinal traction is performed and / or set so that the elongated part of the longitudinal traction is entirely located inside the receiver to the left of the vertical plane passing through the longitudinal axis of the weapon and at the same time the traction can be moved in the longitudinal direction at a distance sufficient to rotate the pressure element through an angle sufficient to activate the percussion mechanism.

In yet another aspect, the invention relates to a kit for use in the above method, which comprises a longitudinal link, a finger without a finger grip, and a trigger as described above.

In yet another aspect, the invention relates to an automatic firearm arranged in a bullpup pattern that is manufactured as described above.

In another aspect, the invention relates to an automatic firearm arranged in a bullpup fashion that contains parts from the above set.

And, finally, in another aspect, the invention relates to the use of an automatic firearm, in which a full-time trigger is located behind the percussion mechanism, to implement the above method.

You must understand that in the present text the invention is characterized only by such signs that are sufficient to solve the problem, implement the purpose and achieve the selected technical result; special mention of all the features and utilitarian characteristics of the invention without exception is not required if specialists should be aware that products of the same kind possess such features and utilitarian characteristics and without them the main purpose cannot be realized; all the more, it is not necessary to limit the generalized features to any specific options, if such should be known to specialists and (or) can be selected according to known rules.

The design of the trigger mechanism of the machine gun obtained by the proposed method is illustrated by figures 1-6 on the example of one of the private forms of embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is presented in FIG. 1-6, where:

- in FIG. 1 schematically shows a PKM machine gun;

- in FIG. 2 schematically shows a PKM machine gun in a bullpup version;

- in FIG. 3 shows traction;

- in FIG. 4 shows details of the trigger mechanism (trigger, push element installed instead of the standard trigger, regular trigger);

- in FIG. 5 shows a fragment of the receiver, and next is a diagram of the connection of parts of the trigger mechanism in isometry;

- in FIG. 6 shows a fragment of the receiver, with the details of the trigger mechanism installed in it in isometry.

Positions 1-15 indicate the following elements:

1 - box with cartridges placed on the tape;

2 - full-time handle;

3 - full-time trigger;

4 - butt;

5 - receiver;

6 - trigger;

7 - pressure element;

8 - thrust;

9 - additional forend with a firing control handle;

10 - front forend;

11 - butt plate;

12 - axis of the trigger;

13 - axis of the standard trigger;

14 - front axle;

15 - rear axle traction.

DETAILED DESCRIPTION OF THE INVENTION

In the proposed method for the manufacture of automatic firearms, arranged according to the bullpup scheme, they use:

1) an automatic firearm in which the standard trigger is located behind the striking mechanism;

2) a longitudinal rod having a front end, an elongated part and a rear end,

3) a fingerless element without a finger, configured to be mounted substantially on the axis of a standard trigger, the upper end of which (the pressure element) is pivotally connected to the rear end of said longitudinal rod and acts on said percussion mechanism,

4) the trigger, the upper end of which is made with the possibility of articulation with the front end of the said longitudinal traction, and the lower end is a finger hook.

The pressure element, the trigger and / or the longitudinal traction are made and / or set so that the elongated part of the longitudinal traction is entirely located inside the receiver to the left of the vertical plane passing through the longitudinal axis of the weapon, and at the same time the traction can be moved in the longitudinal direction on a distance sufficient to rotate the pressure element at an angle sufficient to activate the percussion mechanism.

In accordance with the proposed method first

a) provide an opening for the trigger in the lower part of the receiver of said weapon at a distance from the hole for the regular trigger in front of the said percussion mechanism, then

b) establish said pressure element essentially on the axis of said regular trigger,

c) set said trigger with the possibility of rotation about an axis perpendicular to a vertical plane passing through the longitudinal axis of the weapon, passing said finger grip through said trigger hole, so that this hook is located outside the receiver,

g) connect the hinges of the pressure element and the trigger by means of longitudinal traction.

The trigger assembly obtained in this way comprises a trigger 6 mounted on the forearm 9. On the upper part of the trigger 6 on the axis 14 is fixed the front end of the longitudinal rod 8, the rear end of which is connected to the axis 15 mounted on the pressure element 7. The longitudinal rod 8 in the plane its movement is a single part in the form of a broken line, consisting of two parallel sections connected by an inclined section (Fig. 3).

The pressing element 7 for pressing the trigger lever is made in the form of a part repeating the shape of the standard trigger, provided with a hole in the lower part for mounting on the axis of the base hook 13 and different from it by the absence of a finger hook and the presence of a lever with a ledge to the left in the upper part thrust axis hole 15.

The functional purpose of the trigger unit is to transmit movement from the trigger of the pistol grip of the weapon to the trigger lever of the trigger mechanism of the machine gun, i.e. only at the stage of direct shooting.

The trigger unit works as follows: when the arrow is pressed on the spring-loaded trigger 6, the latter, turning on the axis 12, begins to advance the longitudinal rod 8, connected to the pressure element 7 via the axis 15, forward. In this case, the movement of the rod 8 is transmitted to the pressure element 7, as a result of which, as a result, it frees the shutter frame of the PC, which leads to a shot.

All parts of the proposed launch site are made of structural materials and equipment used in the manufacture of parts and components of the PC.

Claims (14)

1. A method of manufacturing an automatic firearm, arranged according to the bullpup scheme, in which they use: 1) an automatic firearm in which the standard trigger is located behind the striking mechanism; 2) a longitudinal rod having a front end, an elongated part and a rear end, 3) a fingerless element without a finger, configured to be mounted substantially on the axis of a standard trigger, the upper end of which (the pressure element) is pivotally connected to the rear end of said longitudinal rod and acts on said percussion mechanism, 4) a trigger, the upper end of which is made with the possibility of articulation with the front end of the said longitudinal traction, and the lower end is a finger hook, in which: a) provide a hole for the trigger in the lower part of the receiver of said weapon at a distance from the hole for the regular trigger in front of the said percussion mechanism, b) establish said pressure element, essentially, on the axis of the said regular trigger, c) set said trigger with the possibility of rotation about an axis perpendicular to a vertical plane passing through the longitudinal axis of the weapon, passing said finger grip through said trigger hole, so that this hook is located outside the receiver, g) connect the hinges of the pressure element and the trigger by means of longitudinal traction, while the pressure element, the trigger and / or the longitudinal traction is performed and / or set so that the elongated part of the longitudinal traction is entirely located inside the receiver to the left of the vertical plane passing through the longitudinal axis of the weapon, and at the same time the traction can be moved in the longitudinal direction on a distance sufficient to rotate the pressure element at an angle sufficient to activate the percussion mechanism. 2. A kit intended for use in the method according to claim 1, comprising a longitudinal rod, a pressure element without a finger hook, and a trigger as described in paragraph 1. 3. Automatic firearms arranged according to the “bullpup” scheme, characterized in that it is made by the method according to claim 1. 4. Automatic firearms arranged according to the bullpup scheme, characterized in that it contains a set according to claim 2. 5. The use of automatic firearms, in which the standard trigger is located behind the percussion mechanism, to implement the method according to claim 1.

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