BG969U1 - Fragmentation grenade - Google Patents

Abstract

The fragmentation grenade is intended to destruct humans as well as fighting vehicles by means of semi-finished destructing elements. It helps achieve precise regulation of the mass and dimensions of the destructing elements and reduce the scattering on leaving of the launching system. The grenade consists of a body (10) with a fuse (1) attached to its forepart and a base (6) to the rear part, on which there are located an ignition charge (8), a cup (7) and a blasting cap (9). The body (10) is embodied with an intermediate centering bulge (4), a rifled bore (5), and longitudinal channels over the inside surface, while in the interior there is fixed bursting charge (11) covered by a spool (12).

Description

Technical field

The utility model refers to a fragmentation grenade that is used to inflict live power and combat equipment using semi-finished striking elements.

BACKGROUND OF THE INVENTION

Known fragmentation grenades with regulated destruction of the housing, provided through parallel cut transverse channels with trapezoidal profile and forming a grille located on the inner surface of the housing. Characteristic of this construction is the uneven fragmentation of the housing and the production of striking elements of different masses [1].

Fragile grenades are known, the housing of which consists of semi-finished striking elements formed by a spirally wound profiled wire with a transverse notch and tightly spaced turns. Characteristic of this construction is the loss of energy for the destruction of the housing when passing the products of detonation between the coils of the spiral [2], [3].

Known fragmentation grenades with external centering thicknesses and with regulated destruction of the hull, provided by a forming grid. Typical in this construction is the presence of two centering thicknesses in the rear of the housing and a cardboard forming grille located on the inner surface [4].

Known fragmentation grenades with regulated destruction of the hull, provided by an external notch. Typical in this construction is that the housing is made of one or more hollow bodies with an outer notch in the form of a square or diamond mesh, placed in one another [5].

The technical nature of the utility model

The task of the utility model is to create a fragmentation grenade with increased fragmentation effect.

The problem was solved by creating a fragmentation grenade consisting of a burst-shell enclosure and a fuse attached at the front end, and a capsule-igniter and a combustion charge at the rear end.

According to a useful model, the housing is provided with an intermediate centering thickness located at a distance (1.8 - 2.5) d from the bottom, with a screw channel and longitudinal grooves on the inner surface with a depth (0.50 - 0.65) of the thickness of the housing. wall of the housing, and in the inner volume of the housing is a burst charge, coiled with a spool.

The benefits of the utility model are the following. The screw ducts, which are required by the inner channels, provide accurate regulation of the mass and dimensions of the striking elements. Intermediate centering thickening significantly reduces the dispersion of grenades upon leaving the firing system. The use of a spool makes it possible to shape the burst charge from individual checkers and improves its attachment to the housing.

Description of the attached figures

An exemplary embodiment of the grenade according to the utility model is shown in the accompanying figures, where:

Figure 1 is a schematic diagram and a partial longitudinal section;

Figure 2 is a cross-sectional view of a grenade;

Figure 3 is a partial longitudinal section of a housing with a bottom.

Examples of implementation of the utility model

The fragmentation grenade (figure 1) consists of a fuse 1, a housing 10 and a bottom 6, which houses a flammable charge 8, a cup 7 and a capsule-igniter 9. The housing 10 is provided with an intermediate centering recess 4, a screw channel 5 and longitudinal channels 13 on the inner surface. In the volume of the housing 10, bounded by the fuse 1 and the bottom 6, a tensile charge 11 is fixed, wrapped with a spool 12, and a washer 3 is fixed to its outer surface by means of a screw 2.

Application and mode of action of the utility model

The grenade launcher is used to hit manpower and combat equipment, using a hand grenade launcher complete with a starter charge.

The principle of operation of the grenade (Figure 1) is as follows.

When the trigger of the grenade launcher is pressed, the striker stabs the igniter 9 and ignites it. The fire pulse of the capsule igniter ignites the ignition charge 8, which burns the cup 7 and ignites the firing charge of the shot (not shown). As a result, the grenade receives the required initial velocity and leaves the grenade launcher. In the encounter with a barrier, fuse 1 is triggered, which in turn initiates the burst charge 11 whose detonation products fragment the housing 10 into pre-regulated by the screw channel 5 and the longitudinal channels 13 striking elements.

Claims (1)

1. A fragmentation grenade consisting of a housing filled with an intermediate centrifugal seal, discharged throughout the internal volume of the burst charge and attached at the front end by a fuse, and at the rear end by a capsule igniter and a flammable charge, characterized in that the gap is the centering thickness (4) is located at a distance (1.8 - 2.5) d from the bottom (6), and a screw channel (5) is provided along the inner surface of the housing (10) and the longitudinal channels (13) are depth ( 0.50 - 0.65) 10 from the thickness of the housing wall, the burst charge (11) being coated with a la (12).