RU2198375C2 - Round with little decamouflaging effect - Google Patents

Abstract

FIELD: ammunition. SUBSTANCE: invention is specifically related to rifle rounds with little decamouflaging effect which are intended for use by law-enforcement agencies while various operative measures are put into effect. Round includes grenade and launcher which houses firing mechanism. Outer surface of launcher carries units for installation and fixing of round in grenade launcher located under barrel and for anchoring grenade tail assembly. Combustion chamber is arranged inside launcher. There is threaded seat on launcher meant for attachment of tail assembly of grenade. Combustion chamber is divided by cross partition with hole. This hole is shut off by breakable membrane on side of intermediate charge. Firing mechanism includes firing pin with striker. Firing pin can be either of collar- or floating type. Rounds can be fired as from suspended grenade launcher and as from mortar. Potential of employment of small arms according to its direct assignment with total elimination of decamouflaging factors of firing is also secured. EFFECT: expanded application range with complete elimination of decamouflaging factors. 4 cl, 4 dwg

Description

 The invention relates to the field of weapons. In particular, to rifle shots with a small unmasking effect (DMD), designed to destroy manpower and unarmored vehicles.

 There are many rifle shots with DMD, providing firing both from the muzzle of the barrel of the weapon, and from special guides like a mortar.

 Rifle shots with DMD when firing from a barrel muzzle limit the ability to use small arms for their intended purpose with a fixed shot, and also do not fully reduce the unmasking factors.

 Rifle shots with DMD from special guides: PRB-422 Jet Shot grenades, N R 8464 PRB (Belgium) are initiated by the type of mortar shots or electrically, and, as a result, firing from such guides is carried out on area targets.

 Known rifle grenade containing a starting device, including a tube with plumage, a guide, a piston with a propelling charge, a retaining ring and a bullet.

 The operation of the starting device is as follows: the starting device is put on the muzzle of the machine until it stops.

 When fired from a machine gun by a live cartridge, a bullet breaks through a rubber stopper that prevents fragments of a bullet from falling into the machine’s table, falls into the insert and, having penetrated into it, is deformed and remains in the bullet cup. In this case, the liner is shifted in the direction of the bullet movement, the safety ring is cut off and the igniter capsule is glowing briskly.

 The igniter capsule triggers a powder propellant charge. The resulting pressure from the powder gases cuts off the shoulder in the tail of the outer pipe and the grenade begins to move along the guide.

 The use of such a launcher for a screw grenade does not allow bullet firing when a grenade is installed on the muzzle of the barrel, and also does not provide the full unmasking effect of the shot, since when the grenade leaves, the launcher is instantly released and the powder gases from the live cartridge exit into the atmosphere.

 The closest analogue of the invention is a shot with a small unmasking effect, known from patent US 3134330, IPC 7 F 42 B 29/00, 05/26/1964, p.1-3, Fig.1-2.

 A well-known shot contains a grenade and a launching device, inside of which is an impact mechanism.

 The problem to which the invention is directed is to create a shot, the launching device of which provides firing from an outboard grenade launcher (type GP-25) while simultaneously firing a machine gun while completely eliminating unmasking effects (flame, sound, smoke).

 In addition, the proposed launcher provides firing and mortar shots.

 The problem is solved in that a shot with a small unmasking action, containing a grenade and a launching device, inside which there is a striking mechanism, according to the invention, the installation and fixing units of the shot in the underbarrel grenade launcher are made on the outer surface of the launching device and a place is provided for attaching the tail unit of the grenade, and inside the starting device there is a combustion chamber.

 In private embodiments of the invention, the place on the starting device for attaching the tail unit of the grenade is threaded. The combustion chamber is divided by a transverse partition with a hole, while this hole is closed from the intermediate charge by a bursting disc. The combustion chamber contains a blank cartridge. The percussion mechanism contains a striker and a striker, while the striker can be made with a shoulder and floating.

The invention is illustrated by graphic materials depicting:
figure 1 the appearance of the starting device with a grenade;
figure 2 the appearance of the starting device with a floating impact mechanism and a blank cartridge;
figure 3 grenade launcher GP-25 is equipped with a shot with DMD;
in FIG. 4 grenade launcher GP-25 mounted on an AK-74 assault rifle and equipped with a DMD shot.

 The starting device 1 on the external surface has nodes A, B for installing and fixing a shot in the underbarrel grenade launcher 2 and a threaded connection B for attaching the tail unit 3 of the grenade.

 The combustion chamber 4 contains a primer 5, a transverse baffle 6 with a throttle hole 7, closed on the side of the intermediate charge 8 by a bursting disc 9, or a blank cartridge 10.

 The percussion mechanism contains a drummer 11 with a shoulder or floating due to the spring 12 and the firing pin 13.

 The operation of the starting device is as follows.

 For firing a shot, it is necessary to install a shot with a DMD in a grenade launcher 2, while the launching device with nodes A and B is fixed in the barrel of the grenade launcher. When the trigger mechanism of the grenade launcher is triggered, the igniter 5 is triggered, which causes the ignition of the intermediate charge 8 (or the charge in the empty cartridge 10), the stable mode and completeness of combustion of which is ensured by the presence of a bursting membrane 9 and a throttle opening 7, which, in turn, , allows to provide a stable initial speed of the striker 11, which, having speed, strikes the striker 13, and that, in turn, initiates the igniter capsule 14 of the propellant charge 15 located about in the piston 16, and since the piston abuts against a cut of the starting device and does not have the ability to move, a grenade comes into motion, having previously cut off the threaded connection B.

 In this case, the powder gases generated in the tail cavity 3 of the grenade are blocked by the piston 16, and the powder gases of the intermediate charge 8 used to launch the grenade remain inside the starting device.

Claims (5)

 1. A shot with a small unmasking action, containing a grenade and a launching device, inside which there is a striking mechanism, characterized in that on the outer surface of the launching device there are made the units for installing and fixing the shot in the under-barrel grenade launcher and a place is provided for attaching the tail unit of the grenade, and inside the launching device device located combustion chamber.  2. The shot according to claim 1, characterized in that the place on the starting device for attaching the tail unit of the grenade is threaded.  3. The shot according to claim 1, characterized in that the combustion chamber is divided by a transverse partition with a hole, while this hole is closed from the intermediate charge by a bursting disc.  4. The shot according to claim 1, characterized in that the combustion chamber contains a blank cartridge.  5. A shot according to claim 1, characterized in that the percussion mechanism comprises a striker and a striker, while the striker can be performed with both a shoulder and a floating one.

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