WO2020145844A2 - Automatic firearm with automatic loading system based on the recoil of an unlocked bolt and having a spring-loaded barrel suspension - Google Patents

Abstract

The present invention relates to the field of military technology, and more particularly to an automatic firearm. Said firearm consists of a receiver, a bolt, a trigger-controlled lock for locking the bolt in a rearward position, a trigger mechanism, an ammunition feed mechanism movable along the axis of the barrel and having attached thereto a guide with a stop, a recoil spring between the bolt and the receiver or the stop of the guide, a buffer spring between the receiver and the barrel or the stop of the guide, sighting equipment, and a butt. The technical result provided by the above combination of features is to produce recoil of the weapon in the form of a force having a constant value, said force acting on a support (the shooter's shoulder, a mount, the body of a combat vehicle) throughout the entire duration of automatic firing, thus eliminating shaking of the weapon, improving operating conditions for the shooter and aiming conditions, and reducing the scattering of bullets. The invention can be used in all types of automatic firearms (stationary, mounted, portable, hand-held).

Description

AUTOMATIC FIREWARE WEAPONS WITH

AUTOMATION, BASED ON THE GIVING OF A FREE SHUTTER AND WITH A SPRING SUSPENSION OF THE BAR

DESCRIPTION

The present invention relates to the field of military equipment, namely to automatic firearms [F41C 7/00, F41C 3/00, F41A 21/00].

From the current level of technology, automatic firearms are known as a submachine gun, the automation system of which is based on the release of a free shutter. As a prototype we take a submachine gun of the Shpagin system (Manual on small business. Automatic machine gun (submachine gun), model 1941, designed by G. Shpagin, Military Publishing House of the Ministry of Armed Forces of the USSR. 1946).

The submachine gun consists of a receiver, barrel, bolt, return spring between the bolt and the rear wall of the receiver, trigger mechanism, ammunition store, sights, stock.

The submachine gun works as follows: Before opening automatic fire, the weapon is loaded. The shutter retracts to the rear position and is placed on the latch, the return spring is compressed. When the trigger is pulled, the lock releases the shutter, the bolt moves forward with acceleration by the return spring, the cartridge is fed into the chamber from the ammunition store, the shutter punches the cartridge capsule with its brisk hammer, a shot occurs, and the shutter moves backward under recoil action, is removed and the spent sleeve is ejected, the return spring is compressed. If in the rear position the shutter is not installed on the latch, it will move forward - the actions of the mechanism will be repeated. Automatic fire will continue until the bolt is mounted on the latch (the trigger is released) or the ammunition runs out.

The disadvantage of this technical solution is the strong shaking of the submachine gun during automatic fire.

The task to which the claimed invention is directed is to create an automatic firearm design with an automation system based on the recoil of a free shutter, which has recoil in the form of a force of constant magnitude acting on a support (shoulder arrow, machine tool, combat vehicle body), with the possibility of using this design in all types of automatic firearms (stationary, machine-gun, portable, manual).

This problem is solved by installing a receiver in the weapon, a bolt, a trigger-controlled lock to lock the bolt in the rear position, a trigger mechanism, an ammunition mechanism, moving along the barrel’s own axis with a guide fixed to it, a return spring between the with a creative and a receiver or an emphasis of a guide, a buffer spring between a receiver and a barrel or an emphasis of a guide, sights, stock. The barrel during its reciprocating movements should not hit the receiver.

The weapon works as follows: Before opening automatic fire, the weapon is loaded. The shutter retracts to the rear position and is placed on the latch, while the return spring is compressed, and when structurally necessary, the buffer spring is compressed in the same movement. When the trigger is pulled, the lock releases the shutter, the bolt moves forward with acceleration by the return spring, the cartridge moves into the chamber, with its brisk hammer the shutter punches the capsule of the cartridge, a shot is fired, by the recoil the shutter moves back, the shot is removed and thrown out sleeve, return spring is compressed. If the shutter is not installed on the lock in the back position, it will move forward - the actions of the mechanism will be repeated. Automatic fire will continue until the bolt is mounted on the latch (the trigger is released) or the ammunition runs out, while the buffer spring fights off all the reciprocating movements of the barrel without transmitting shock effects to the weapon. Thus, during the entire time of automatic fire, making reciprocating movements, the barrel through the buffer spring, and the bolt through the return spring will press on the receiver with forces of certain constant values.

The technical result provided by the given set of features is to obtain the return of the weapon in the form of a constant force acting on the support (arrow of the shooter, machine tool, body of the combat vehicle) throughout the entire time of automatic fire, which eliminates the shaking of weapons, improves the working conditions of the shooter , conditions for aiming weapons at the target, reduces the dispersion of bullets. The invention can be used in all types of automatic firearms (stationary, easel, portable, manual).

As an example, figure 1 shows the design with a return spring between the bolt and the receiver and the buffer spring between the receiver and the barrel. In the receiver of the weapon (pos. 2), a latch (pos. 3), a barrel (pos. 8), movable along its own axis, a bolt (pos. 6) are installed. A guide (pos. 7) with a stop (pos. 1) is fixed on the barrel. A return spring (pos. 5) is installed between the bolt and the receiver, and a buffer spring (pos. 4) is installed between the receiver and the barrel. The order of operation of the design is similar to the above. As an example, figure 2 shows the design with a return spring between the bolt and the focus of the guide and the buffer spring between the receiver and the focus of the guide. In the receiver of the weapon (pos. 2), a latch (pos. 3), a barrel (pos. 8), movable along its own axis, a bolt (pos. 6) are installed. A guide (pos. 7) with a stop (pos. 1) is fixed on the barrel. A return spring (pos. 5) is installed between the bolt and the guide stop; a buffer spring (pos. 4) is installed between the receiver and the guide stop. The order of operation of the design is similar to the above.

Claims

Claim Automatic firearm with automatic, based on the recoil of the free shutter and with a spring suspension of the barrel, containing a receiver, shutter, trigger controlled trigger for fixing the shutter in the rear position, trigger mechanism, ammunition mechanism, characterized in that contains a barrel movable along its own axis with a guide fixed on it with a stop, a return spring between the bolt and the receiver or the guide stop, a buffer spring between the receiver and the barrel or the guide stop.