RU2723363C1 - Antiricochet attachment - Google Patents

Abstract

FIELD: instrument engineering.SUBSTANCE: invention relates to additional devices for cumulative ammunition, namely to antiricochet attachments designed for cumulative shells with conical and ogival-conical shape of head part. Antiricochet attachment comprises housing in form of hollow right circular cone, from top of which symmetrically radially divergent outer ribs forming four-, five- or six-pointed star, on front end surface of which, layer of abrasive powder is applied on section from outer edge not more than 1/4 of radius of cone base. On the inner surface on the side of the cone base an adhesive compound is applied, covered with a protective insert made in the form of an insert bushing with an external collar and with a bridge in the center.EFFECT: technical result consists in prevention of ricochet shell from inclined or curved surface of armor of target even at sharp angles of meeting projectile with armor.1 cl, 10 dwg

Description

The invention relates to ammunition, in particular to additional devices for cumulative ammunition, reducing their ability to ricochet. Designed to prevent projectile ricochet from the sloping surface of the target’s armor even at sharp angles between the projectile and the armor. The nozzle is designed for standing in service with cumulative shells with a conical and lively-conical shape of the head.

When conducting a battle in an urban environment, with intensive enemy return fire, when there is no time for careful aiming at armored vehicles or when armored vehicles are actively maneuvering, sometimes a cumulative projectile is ricocheted from the armor due to the sharp angle of the projectile’s meeting with the armor of the target. To eliminate this situation, it is proposed to use an anti-ricochet nozzle.

The problem to which the invention is directed is to create a simple device that can be put on the head of a cumulative ammunition before firing to prevent ricochet of the ammunition at small angles of its meeting with the inclined or curved surface of the armor or armored glass. The anti-ricochet nozzle is made in the form of a hollow straight circular cone, from the top of which the outer ribs symmetrically radially diverge, forming a four, five or six-pointed star. On the front end surface of the ribs, in the area from the outer edge of not more than 1/4 of the radius of the base of the cone, a layer of abrasive powder is applied. On the inner surface of the cone, on the base side, an adhesive composition is applied, covered by a protective insert made in the form of an insert sleeve with an outer collar and with a jumper in the center. No close analogues were found.

The invention is illustrated by the following drawings:

FIG. 1 - nozzle option 1, side view.

FIG. 2 - nozzle option 1, General view.

FIG. 3 - nozzle option 2, side view.

FIG. 4 - nozzle option 2, General view.

FIG. 5 - nozzle option 3, side view.

FIG. 6 - nozzle option 3, General view.

FIG. 7 - nozzle option 3 on an RPG grenade.

FIG. 8 - nozzle option 1 on a cumulative projectile with a fuse located inside the housing.

FIG. 9 is a diagram of the operation of a projectile with a nozzle.

FIG. 10 - protective insert.

The anti-ricochet nozzle body 1 of FIG. 1, 2 is made in the form of a hollow straight circular cone, from the top of which the outer ribs 2 symmetrically radially diverge, forming a four, five or six-pointed star. On the front end surface of the ribs, in section 3, from the outer edge of not more than 1/4 of the radius of the base of the cone, a layer of abrasive powder with a grain size of 500-1000 microns is applied. From the side of the base of the cone, on the inner surface, an adhesive composition 4 is applied. The surface of the adhesive composition is covered with a protective insert 5, FIG. 10, made in the form of an insert sleeve with an outer collar and with a jumper 6 in the center. On the opposite sides of the insert there are cuts 7 at the junction of the jumper 6 with the insert 5. The protective insert is made of soft synthetic material that can be easily removed from the adhesive composition. The anti-ricocheting nozzle has three options. Option 1 (solid cone) of FIG. 1, 2, 8 - for shells with a fuse located inside the shell. Option 2 (truncated cone) of FIG. 3, 4 - for shells with a fuse located in the head of the shell. Option 3 (truncated cone with protruding ribs) of FIG. 5, 6, 7 - for RPG grenades and shells with an instant-action head fuse, which is closed by a removable safety cap. Nozzle material: for small-caliber shells - pressed cardboard, plastic, for medium-caliber shells - plastic, aluminum alloys.

The nozzle works as follows, when preparing shells for combat use or just before a shot, the protective insert 5 breaks along the notches 7 and is removed from the inner surface of the housing 1 by pulling the central jumper 6. The nozzle is put on the head of the cumulative projectile and fixed with adhesive 4. After a shot is fired and a projectile encounters an inclined surface of the target’s armor, one or two ribs 2, when impacted with the armor, cling to the surface of the armor or bulletproof glass with an abrasive layer 3, partially deform, increasing the contact area of the abrasive layer with the surface, while the head of the projectile is inhibited, and the bottom part continues to move and unfolds the projectile at an angle close to normal. The shell hits the surface of the armor with its head, the detonator fires, detonates the cumulative charge, and the cumulative jet penetrates the armor at an angle close to normal.

Claims (1)

An anti-ricochet nozzle containing a body in the form of a hollow straight circular cone, from the top of which the outer ribs symmetrically radially diverge, forming a four-, five- or six-pointed star, on the front end surface of which, in the area from the outer edge, not more than 1/4 of the radius of the cone base , a layer of abrasive powder is applied, an adhesive composition is applied on the inner surface from the base of the cone, covered with a protective insert made in the form of an insert sleeve with an outer collar and with a jumper in the center.

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