RU2239765C1 - Hand grenade launcher - Google Patents

Abstract

FIELD: armament, applicable in hand grenade launchers for one application.

SUBSTANCE: the launching tube-pack with a barrel placed in it is made with a front and rear covers. A cavity is formed on the inner side of the barrel between the grenade and the front cover. A priming device is installed on the cover. The grenade is installed in the barrel up to the stop of the engine against the rear cover and aligned in the barrel with provision of further alignment at telescoping in the launching tube-pack by means of spring-loaded supports diametrically positioned relative to each other along the grenade body. The barrel is positioned in the launching tube-pack with a radial clearance, and a centering collar is made on it on the side of the rear cover in the generating line, and a setting cone - on the inner side. A tapered catcher equidistant from the tapered centering collar is made on the inner side of the launching tube-pack, on the side of the front cover. The angle of inclination of the generating lines of tapered centering collar is smaller than the friction angle.

EFFECT: enhanced speed and sighting range of grenade flight.

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Description

The present invention relates to the field of weapons and can be used in the development of portable non-returning single-use grenade launchers and takes into account the ever-growing requirements to improve the perfection of their designs.

The famous Spanish manual anti-tank grenade launcher (RPG) “Alkotan” [1], in the construction of which the principle of the "Davis gun" is applied, that is, to counter the recoil force from the rear of the launch tube, the "counter mass" is pushed back. This grenade launcher is selected as an analogue.

RPG consists of a launch tube-container with a grenade and a jet engine (shot), firing mechanism, anti-mass and fire control system.

This design of the grenade launcher, with all its advantages, has significant drawbacks, namely, the counter-mass pushed back is unsafe for the shooter and leads to an increase in the total mass of the shot without increasing the speed of the grenade.

Known manual grenade launcher [2], containing a launch tube-container with a firing mechanism and a handle, a grenade with a jet engine, a mass counter.

The counter-mass is mounted telescopically in the launch tube-container and is a jet engine and a barrel rigidly attached to it, while the grenade is installed in the barrel all the way into the jet engine and has a constant volume cavity in its rear part, and the jet engine has a front bottom nozzle, and the length of the launch tube-container is equal to the length of the mass.

However, this design of the grenade launcher, with all its advantages, and this is an unsuccessful launch, an increase in the speed and sighting range of the grenade with a constant length of the launch tube-container, has significant drawbacks, namely: there is an increase in speed, but insignificant, since the increase in speed occurs by adding speeds the movement of the barrel with a rigidly fastened engine along the launch tube (this movement begins earlier) and the speed of movement along the barrel of a grenade, which begins to accelerate along the length of the barrel as elicheniya pressure in the barrel. This design of a hand grenade launcher is designed for separate launch, when the grenade takes off without an engine, and the engine itself, rigidly mounted on the barrel, is part of the mass and is unacceptable for grenades with an inseparable engine, since this design of the grenade launcher does not provide complete combustion of the powder charge of the engine before the grenade from the launch tube-container, which is unacceptable for safety.

A significant increase in the speed and, accordingly, the aiming range of a grenade is possible by an order of magnitude in two ways: a significant increase, about twice, of the length of the launch tube-container or an increase in the powder charge in the previous dimensions of the engine, which is practically impossible without changing the design of the engine, under the condition that the engine must finish your job before the grenade takes off.

The objective of the invention is to eliminate the above disadvantages, namely: a significant increase in the speed and sighting range of a grenade with an inseparable engine with a forced increase in the length of the barrel of the launch container and ensuring guaranteed combustion of the powder charge of the engine in the barrel before the grenade leaves.

This task is achieved in that in a hand grenade launcher containing a launch tube-container with a barrel located in it, with a trigger mechanism with a handle and a grenade with a jet engine, according to the invention, the launch tube-container with a barrel placed in it is made with front and rear covers, at the same time, a cavity is formed between the grenade and the front cover on the inside of the barrel, and an igniter is installed on the cover, while the grenade is installed in the barrel against the stop by the engine in the back cover and is centered in the barrel with further centering during telescopic extension and in the launch tube-container by means of spring-loaded bearings diametrically relative to each other along the grenade body, the barrel being located in the launch tube-container with a radial clearance and a conical a centering belt, and on the inside, a lead-in cone, while on the inside of the launch tube-container, from the side of the front cover, a conical catch is made spruce, equidistant conical centering collar, wherein the angle forming a conical centering collar and the catcher is formed smaller than the angle of friction.

The essence of the invention lies in the fact that this design of a hand grenade launcher provides a reliable exit of the grenade at a high speed while increasing the aiming range due to the forced telescopic extension of the barrel from the launch tube-container due to the combustion of the igniter in the cavity formed between the grenade and the front cover, which reliably holding conical catcher launch tube-container, and also provides complete combustion of the powder charge p active engine in the barrel before departure grenades.

Figure 1, 2, 3 shows the proposed design of a hand grenade launcher, where:

1 - launch tube-container with a trigger mechanism and a handle;

2 - a grenade with a jet engine;

3 - trunk;

4 - front cover;

5 - a back cover;

6 - igniter device;

7 - the cavity between the grenade and the front cover;

8 - conical catcher launch tube-container;

9 - conical centering belt of the trunk;

10 - radial clearance;

11 - entry cone;

12 - spring-loaded bearings.

The manual grenade launcher operates as follows: the operator (shooter), holding the handle with the trigger, sets the grenade launcher on his shoulder, takes aim at the target and launches the grenade. The operation of the grenade launcher is fleeting, and if we consider the process of launching the grenade in time, this process is carried out as follows: when you press the trigger, the powder hitch of the igniter 6 mounted on the front cover 4 of the grenade launcher is triggered, while the powder gases flow into the free cavity 7 formed between the front cover 4 and the grenade 2, where they create operating pressure on the cover 4, at which the barrel 3 telescopically extends (shoots) forward from the launch tube-container 1 (to the maximum hydrochloric value) where inhibited and held securely conical catcher 8, equidistant conical centering collar 9 launch tube container 1 for a conical centering rib 9 of the barrel 3, by providing the execution angle forming a conical centering collar and trap smaller than the angle of friction. When performing the angle of inclination forming more than the angle of friction, a blow will occur and the barrel will bounce back, which is unacceptable.

In this case, the front cover 4 is reset. At this moment, the grenade engine 2, installed in the barrel 3 all the way into the back cover 5, is triggered by opening the back cover 5, and the grenade, rushing forward along the barrel, flies out. In this case, the powder charge of the grenade's jet engine is selected so that, while ensuring the maximum acceleration speed of the grenade, it finishes its work in the barrel before the grenade takes off. The spring-loaded bearings 12 are designed to center the grenade in the barrel, and with telescopic extension, when the barrel is pulled from the grenade due to its acceleration, the spring-loaded bearings, diametrically moving apart, center the same grenade already in the launch tube-container. The barrel 3 is made from the side of the back cover 5 with the inlet cone 11 to ensure free entry of the grenade 2 into the telescopically extended barrel together with spring-loaded bearings, which, after the grenade leaves, are carried away by the air stream.

Sources of information

1. The journal "Foreign Military Review". - M .: Red Star, 1995, No. 8, p.21-22, Fig. 4 - analogue.

2. Russian patent No. 2190178 from 09/27/02, BI No. 27, IPC 7 F 41 F 3/042 - prototype.

Claims (1)

A hand grenade launcher comprising a launch tube-container with a barrel located in it, a trigger with a handle and a grenade with a jet engine, characterized in that the launch tube-container with a barrel placed in it is made with a front and a back cover, on the inside of the barrel between the grenade a cavity is formed and the front cover, and an igniter is installed on the cover, while the grenade is installed in the barrel all the way into the back cover by the engine and is centered in the barrel to ensure further centering when telescoping in the launch tube-container by means of spring-loaded bearings diametrically located relative to each other along the grenade body, the barrel is located in the launch tube-container with a radial clearance and a conical centering belt is made on it from the side of the back cover along the generatrix, and from the inside sides - a feed cone, while on the inside of the launch tube-container, on the side of the front cover, a conical trap is made, which is equidistant to the conical centering belt And the inclination angle forming a conical centering collar and the catcher is formed smaller than the angle of friction.

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