RU2392559C2 - Self-loading grenade launcher - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention relates to weapons, namely to grenade launcher with moving barrel and consisting of casing and striker with spring. Striker and barrel are coupled via accelerator representing a bell crank wit arms ration making at least 3:1. Striker rear end and barrel rear face have ledges to accommodate with said accelerator during automatic operation before inserting grenade into barrel. Spring-loaded barrel retainer can move up and down driven by said spring and lock barrel backstroke after barrel comes to front position.

EFFECT: ease of use, higher rate of fire.

1 dwg

Description

The invention relates to the field of weapons technology, in particular to self-loading grenade launchers.

The known design of the M-203 grenade launcher with the forward movement of the barrel when reloading / Fedoseev S.L. Weapons of modern infantry. Part 2, Moscow, AST Publishing House, 2001, pp. 88-97, 104-109 /.

The disadvantage of this design is the complexity and duration of the reloading process, as well as a significant recoil momentum.

The objective of the invention is the creation of a compact grenade launcher with a reduced recoil momentum, the design of which uses the recoil energy of the striker to move the barrel forward by using a lever gear followed by the insertion of a new grenade and the barrel returning to the rear position under the action of its return spring. Due to the fact that part of the recoil impulse is spent on moving the barrel forward and compressing the return spring, it is supposed to achieve a decrease in the total recoil impulse.

The essence of the invention consists in creating a grenade launcher with a moving barrel, consisting of a barrel, a body and a striker with a combat spring and characterized in that the striker and the barrel are interconnected using an accelerator in the form of a two-shouldered lever with a shoulder ratio of at least 3: 1, having the rear end of the firing pin and the rear section of the barrel of the protrusions, the location of which is selected from the condition of their interaction with the accelerator in the initial period of operation of the automation until the next grenade is inserted into the barrel, by the presence of a spring-loaded barrel stop having the ability to fall down under the action of its spring and block the movement of the barrel back after it comes to the front position.

The drawing shows the proposed grenade launcher.

The invention consists of a barrel / 1 /, guide return spring / 2 /, return spring / 3 /, housing / 4 /, hammer / 5 /, mainspring / 6 /, transmission lever / 7 /, spring transmission lever / 8 /, trigger / 9 /, trigger spring / 10 /, whispered / 11 /, sear spring / 12 /, barrel stop / 13 /, barrel stop spring / 14 /. The transmission lever has an end / 15 / for interacting with the hammer / 5 / and an end / 16 / for interacting with the barrel / 1 /. Sheptalo has a platoon / 17 / and an external control bilateral flag / 18 /. The barrel stop / 13 / has a protrusion for interacting with the rear cut of the barrel / 19 /, a protrusion for interacting with an inserted grenade / 20 /. The ratio of the lengths of the large and small shoulders of the lever is not less than 3: 1, which is determined by the need to maximize the proportion of the energy of the recoiling drummer transferred to the barrel.

Before the shot, the barrel / 1 / is in the forward position, the return spring / 3 / is minimized in preload, the drummer / 5 / is on the battle platoon of the sear / 11 /. After pulling the trigger / 9 /, the latter engages with the protrusion of the sear / 11.2/, overturns the sear / 11 /, releases the hammer / 5 / and fires a shot. After the shot, the striker / 5 /, having a cylindrical shape with a diameter equal to the inner diameter of the bore, moves back under the influence of recoil, becomes a sear / 11 / and, continuing movement, with its end comes into interaction with the small end of the transmission lever / 15 / and through it transfers recoil momentum to the barrel / 1 /. The barrel / 1 / moves forward, compressing its return spring / 3 /, and the drummer / 5 / returns to the “on the sear” position under the action of the mainspring / 6 /. Having passed a distance no less than the length of the grenade used, the barrel / 1 / makes it possible to lower the barrel stop / 13 / under the action of its spring / 14 /. In this case, the protrusion of the barrel stop / 19 / abuts against the rear cut of the barrel / 1 / and does not allow it to return to the rear position. The inserted grenade with its body presses on the protrusion / 20 / of the barrel stop and squeezes it up, as a result of which the barrel / 1 / is released and returns to its original position.

When moving forward, the barrel / 1 / travels a distance greater than the length of the grenade used, which is dictated by the need to ensure the reliability of the automation and the need to absorb the recoil momentum from the shot.

Placing a return spring above the barrel allows you to minimize the length of the weapon.

The use of a switchable barrel stop allows you to speed up the reloading of weapons.

The use of the barrel-transmitting lever accelerator allows, in addition to providing automatic reloading, to weaken the shock loads on the arrow due to the transfer of energy from the recoil drummer to the barrel moving forward.

Claims (1)

A grenade launcher with a moving barrel, consisting of a body and a striker with a mainspring, characterized in that the striker and the barrel are connected by an accelerator made in the form of a two-shouldered lever with a shoulder ratio of at least 3: 1, at the rear end of the striker and the rear section of the barrel protrusions are made for interacting with the accelerator in the initial period of automatic operation before grenades are inserted into the barrel, the barrel is stopped spring-loaded with the possibility of lowering under the action of a spring and blocking the barrel back after n ihoda barrel in forward position.