CZ301793B6 - Non-toxic projectile with controlled deformation - Google Patents

Abstract

The present invention relates to a non-toxic projectile with controlled deformation dependent on the resistance of a target material wherein the projectile consists of a projectile body /1/ separated by a functional transverse groove /2/ in a rear cylindrical guide portion and a front ogival portion with a cavity /3/ accommodating a metallic ball /4/ forming by its portion a projectile tip. The cavity /3/ consists of a front conical portion /31/ accommodating said hard metallic ball /4/ secured by beading /5/ and a rear cylindrical portion /32/ in which the metallic ball /4/ is transferred upon target impact. By impact on target, said functional groove /2/ influences deformation of the projectile, which deforms in dependence on the target material resistance.

Description

Non-toxic missile with controlled deformation

Technical field

The invention relates to the construction of a special non-toxic missile with increased deformation when hit by soft targets and increased penetration when hit by resistant targets. The missile is designed mainly for pistol and revolver cartridges.

BACKGROUND OF THE INVENTION

The police and special forces are mainly used cartridges 9x 19 with full-body missile with a soft, predominantly lead core (FMJ). and is capable of escaping or may continue to defend effectively. Furthermore, these missiles, after penetration, subsequently endanger non-interested persons present at the scene of the intervention. Another disadvantage is generally the action of the lead core of the missile, which during the intervention has an adverse effect on the affected person and, of course, on the environment.

For this purpose, it is preferable to use deforming missiles, constructions described, for example, in published applications PV 2002-3019 and PV 2002-3676. However, these missiles may be rotated along their transverse axis due to the loss of stability when penetrating the target, thereby deviating from the original direction of penetration. As a result, fatal injuries can occur even in the event of non-vital zone intervention and unpredictable environmental hazards. Further, for example, the bullet according to the solution disclosed in the published application PV 2002-3019 comprises in its assembly a tappet made of plastic which, when hit by hard parts of the target, can detach from the bullet body and cause unexpected health complications including difficult detection of fragments by X-rays.

SUMMARY OF THE INVENTION

These disadvantages are solved and eliminated by a new non-toxic missile design with controlled deformation dependent on the resistance of the target material, which has increased penetration when a person uses normal personal protective equipment while significantly reducing the risk of environmental hazards. metals, remains compact throughout the action and does not deviate from its path and rotates along its longitudinal axis when transmitting energy.

The non-toxic missile-controlled missile consists of a body made of copper or copper alloys and a hard metal ball-shaped insert placed in a cavity in front of the body. The two components are joined together to form a single unit. The bullet body is divided by a functional transverse groove into a rear cylindrical guide portion and a front ogival portion with a cavity. The cavity has a front conical portion in which a hard metal ball is seated and a rear cylindrical portion into which the metal ball moves when it hits the target. The functional groove upon impact on the target affects the missile deformation depending on the resistance of the target material. The bullet body is coated with Sn coating or Teflon or chemically passivated.

On impact, the bullet made according to the present invention behaves as follows: The ball is pushed inside the bullet body, due to its force on the walls of the front conical portion of the cavity, the mouth begins to open and thus, depending on the type of target, the front of the projectile and optimal energy transfer depending on the resistance environment. The bullet shortens and gradually shifts its center of gravity, but due to its geometry and mass distribution does not change its straight path in the target and also in the target material does not flip. Upon completion of the projectile movement at the target, the hard metal liner remains undeformed and pressed into the rear cylindrical portion of the cavity. The functional groove on the perimeter of the projectile helps define the missile deformation

-ICZ 301793 B6 removes dirt from the barrel bore surface by impacting it on various types of targets and its edge. The groove cross-section is in the form of a smooth curve or a shaped groove. The bullet may have a single diameter, the diameter of the bullet, or for a given caliber two or more diameters, which are graduated from the bullet orifice, while maintaining the ball diameter and orifice diameter, hole depth and body wall thickness in relation to controlled deformation. The cavity in the front part of the projectile has two parts, the first is conical, while the apex angle of the conical part of the cavity β is 10 ° to 25 °. The second part of the cavity is cylindrical and has a diameter E which is 0.5 mm to 0.8 mm smaller than the diameter of the metal ball. The diameter of the steel ball for 9 mm caliber is preferably 4.5 to 5.5 mm.

i The bottom in the cylindrical part of the cavity is at least at a distance from the tip of the bullet, in which the upper edge of the groove formed on the outer surface of the bullet from the tip of the bullet is located. Between the bottom surface and the walls of the cavity, a rounding R3 is provided to prevent part of the projectile from detaching when it penetrates the target and has a radius of 0.5 mm to 1.00 mm for a projectile diameter of 9 mm. The diameter of the projectile relative to the maximum diameter of the cavity (its conical part) is in the ratio of 1.50 to 1.75. The diameter of the bullet, measured in cross-section of the bullet, at a location with a maximum groove depth, is in the ratio of 1.3 to 1.7 to the minimum diameter of the cylindrical portion of the cavity. The metal ball, due to its diameter and the dimensions of the conical cavity portion, is mounted in the conical cavity portion such that its front portion protrudes from the cavity, but at most one third of its diameter, thus forming the tip of the missile. The metal ball is secured in the bullet body by crimping.

Clashes fully usable in cartridges from 5 mm to 13 mm. Due to the materials used, the missile remains compact after the target hit and carries on its cylindrical part traces of grooves mainly, which allows subsequent forensic expertise to identify the weapon used.

The essence of the solution is evident from the following figures and consists in a suitable combination of metal components.

BRIEF DESCRIPTION OF THE DRAWINGS

Giant. 1 shows an embodiment of a non-toxic missile with a controlled deformation in a caliber of 9 mm; FIG. 2 shows an embodiment of a caliber of 11.43 mm (45 US markings).

Exemplary embodiment

Giant. 1 missile with controlled deformation for caliber 9 mm

The missile with a controlled deformation of 9 mm caliber, the total length L, according to Fig. 1 consists of the body 1 bullet and steel ball 4. In the front part of the body 1 bullet cavity 3, which consists of two parts: front conical part 31 at an angle β and rear cylindrical portions 32 of diameter E. The front conical portion 31 of the cavity accommodates a steel ball 4, which forms part of the bullet tip. The steel ball 4 is secured in the axial direction by bending 5 and thus forms one unit with the projectile body. The functional groove 2 on the bullet body 1 has the shape of a general smooth curve and divides the bullet into a rear guiding portion with a diameter D and a front ogivating functional portion with a radius R1 and a maximum diameter d, with D> d. Between the bottom surface and the walls of the cylindrical portion of the cavity 32 a rounding 7 of radius R3 is provided. A radius of radius R2 is worked out between the bottom of the bullet and the walls to facilitate the projecting of the bullet into the bullet.

Giant. 2 missile with controlled deformation for caliber 11.43 mm (45 US markings)

The missile with a controlled caliber deformation of 0.45 total length L, according to Fig. 2, consists of the body I of the projectile and a steel ball 4. In the front part of the body I projectile cavity 3, which consists of two parts: front conical part 3j angle β and the rear cylindrical portion 32 of diameter E.

In the front conical part 31 of the cavity, there is a steel ball 4, which forms part of the bullet tip. The steel ball 4 is secured in the axial direction by crimping 5 and thus forms one unit with the projectile body. The functional groove 2 has the shape of a general smooth curve or a rectangular shape dividing the projectile into a rear guiding portion of diameter D, a central portion of maximum diameter e and a front ogive functional portion of radius R1 and maximum diameter d, D> e> d. Between the bottom surface and the wall of the cylindrical portion of the cavity 32 a rounding 7 of radius R3 is provided. A radius of radius R2 is worked out between the bottom of the bullet and the walls to facilitate the projecting of the bullet into the bullet.

Industrial applicability io

The non-toxic missile with controlled deformation dependent on the resistance of the target material and the possibility of weapon identification can be produced in accordance with this technical solution in a conventional way, which is used in the production of missiles, especially machining and forming. The actual laboratory of this projectile into the ammunition is carried out on common technological equipment for laboratory pistol and revolver cartridges.

Claims (8)

20 PATENT CLAIMS A non-toxic missile with a controlled deformation dependent on the resistance of the target material, consisting of a body (1) of a bullet with a cavity (3), which is divided by a functional transverse groove (2) into a rear cylindrical guide portion 25 and a front ogival portion with a cavity (3), which consists of a cylindrical portion (32) and a conical portion (31) in which a metal ball (4) forming a bullet tip is located, characterized in that the functional metal ball (3) 4), based on the surface of the conical part (31) of the cavity opens the bullet in its front part depending on the resistance of the target material and the functional groove (2) affects the missile deformation so that At the same time, the steel ball moves in the axial axis of the bullet towards the lower hollow part (32) of the bullet, with the bullet not deflecting from its ballistic flight path when the energy is transmitted. A non-toxic bullet according to claim 1, wherein the functional transverse groove 35/2 /, separating the front ogival portion of the bullet cavity from the rear guiding cylindrical portion, has a cross-section in the form of a smooth curve or shaped groove that specifically affects the controlled deformation dependent on the resistance of the target material when the missile strikes the target. A non-toxic bullet according to claim 1, characterized in that it comprises at least: 40 two components with different hardness, from the body (1) bullets and metal balls (4). A non-toxic bullet according to claim 1 or 2, characterized in that the bullet body (1) is made of Cu or copper alloys. The non-toxic bullet according to claim 4, characterized in that the bullet body (1) is made of a CuZn alloy 90/10 to 70/30. 5 which prevents part of the projectile from detaching when penetrating the target with a radius of 0.5 mm to 1.00 mm for a projectile diameter of 9 mm. A non-toxic bullet according to claim 1, characterized in that the cavity (3) in the bullet body (1) consisting of the front conical portion (31) and the rear cylindrical portion (32) has an apex angle β conical. The diameter of the cylindrical part of the cavity has a diameter of 0.5 mm to 0.8 mm smaller than the diameter of the steel ball. -3GB 301793 B6 7. The non-toxic bullet of claim 1, wherein the bottom of the cavity is at least at a distance from the tip of the bullet at the upper edge of the groove formed on the outside surface of the bullet from the bullet tip; Non-toxic bullet according to claim 1 or 2, characterized in that the metal ball (4) is mounted in the bullet body (1) in the conical part (31) of the cavity such that the front part of the metal ball (4) protrudes by at most one third. its diameter from the mouth of the bullet bullets and form the tip of the bullet.