CZ2004820A3 - Non-toxic projectile with controlled deformation - Google Patents

Abstract

Non-toxic missile with controlled deformation is formed by the body (1) of the missile, which is divided by a functional transverse groove (2) on the rear cylindrical guiding part and the front ogival part with the cavity (3), in which the metal ball (4) forms its part. bullets, wherein the cavity (3) consists of a front cone portion (31) in which a hard metal ball (4) is seated and is secured by crimping (5) and a rear cylindrical portion (32) into which the metal is impacted upon impact to the target the ball (4) moves. The function groove (2), when impacting on the target, affects the bullet deformation, which deforms depending on the target material resistance and in this dependence the bullet shifts, while the bullet does not deflect from its path in the longitudinal axis.

Description

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-shell missile with a soft, mostly lead core (FMJ). It is generally known that this bullet design will cause a net bullet when in use, resulting in the affected person either continuing to commit a crime and capable of escaping or continuing 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 when hit 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 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. Furthermore, for example, the bullet according to the solution disclosed in 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 medical 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 at the target, which has increased penetration when a person uses normal means of personal protection while significantly reducing the risk of threat to the environment. The missile, for which no heavy toxic metals are used, remains compact throughout its action and does not deviate from its trajectory 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 guiding part and a front ogival part 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.

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On impact, the bullet made according to this invention behaves as follows: The ball is pushed inside the bullet body, due to its force acting on the walls of the front conical part of the cavity, the mouth begins to open and thus, depending on the type of target deformation of the front of the missile and optimal transmission of energy 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 developed on the perimeter of the projectile helps to define the missile deformation upon impact on various types of targets and at the same time its edge removes impurities from the barrel bore surface. 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 mouth, while maintaining the coupling diameter of the bullet and orifice diameter, hole depth and body wall thickness in relation to controlled deformation. The cavity in the front of the projectile has two parts, the first is conical, with the apex angle of the conical part of the cavity β is 10 ° -25 °. The second part of the cavity is cylindrical and has a diameter E which is 0.5 mm - 0.8 mm smaller than the diameter of the metal ball. The diameter of the steel ball for the 9 mm caliber is preferably 4.5 mm - 5.5 mm.

The bottom in the cylindrical portion 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 is located from the bullet tip. Preferably, a curvature R3 is provided between the bottom surface and the cavity walls, which prevents a portion of the projectile from detaching when penetrating the target, and preferably has a radius of 0.5 mm -1.00 mm for the projectile diameter of 9 mm. The diameter of the projectile relative to the maximum diameter of the cavity (its conical portion) is preferably in a ratio of 1.50 - 1.75. The diameter of the bullet, measured in the cross section of the bullet, guided at a location with the maximum groove depth is preferably in the ratio of 1.3-1.7 to the minimum diameter of the cylindrical portion (32) 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.

The bullet is fully usable in cartridges ranging from 5 mm to 13 mm. Due to the materials used, the missile remains compact after the target hit and bears traces of grooves on its cylindrical part, 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

Figure 1 shows a non-toxic missile design with controlled deformation in 9 mm caliber, Figure 2 shows an 11.43 mm design (.45 US marking)

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Exemplary embodiment

Giant. No. 1 Missile-controlled missile for 9 mm caliber.

The bullet of controlled deformation caliber 9 mm, total length L according to Figure 1 consists of body and bullet and steel ball 4. In the front part of the body A bullet cavity 3, which consists of two parts: the front conical part 31 of the top. angle β and the rear cylindrical portion 32 of diameter E. In the front conical portion 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 on the body and bullet has the shape of a general smooth curve and divides the bullet into a rear guiding portion of diameter D and a front ogival functional part of radius R1 and 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. No. 2 Controlled deformation bullet for caliber 11.43 mm (.45 US marking).

The missile with a controlled deformation of caliber 0.45 '' total length L, according to Figure 2 consists of body and bullet and steel ball 4. In the front part of the body 1 bullet cavity 3, which consists of two parts: the front conical part 31 of the apex angle β and the rear cylindrical part 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 bending 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 middle 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 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.

Industrial applicability

Non-toxic missile with controlled deformation 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 the common technological equipment for laboratory pistol and revolver cartridges.

Claims (15)

Patent claims A non-toxic missile-controlled missile consisting of a bullet body (1) which is divided by a functional transverse groove (2) into a rear cylindrical guide portion and a front ogival portion with a cavity (3) in which a metal ball (4) forming its part of the bullet tip, characterized in that the cavity 3 in the body of the bullet consists of a front conical part (31) in which the hard metal ball (4) and rear cylindrical part (32) is seated into which the metal ball 4), wherein the functional groove (2) upon impact on the target affects missile deformation, which deforms in response to the resistance of the target material and in this relationship shifts the center of gravity of the projectile, leaving the metal ball 4 moved on impact into the rear cylindrical portion 32 all the time on the target permanently part of the projectile, which causes the missile to deviate from its and rotates along its longitudinal axis. 2. The non-toxic controlled deflection bullet according to claim 1, characterized in that it consists of at least two components of different hardness, namely the bullet body (1) and the metal ball (5). 3. The non-toxic controlled deflection bullet according to claim 1, wherein the bullet body (1) is made of Cu or copper alloys. The non-toxic controlled deflection bullet according to claim 3, characterized in that the body is preferably made of CuZn 90 / 10-70 / 30 alloy. Non-toxic controlled deformation bullet according to claims 1 and 2, characterized in that the metal ball (5) is preferably a steel having a hardness HV2 of 90-110, with a surface treatment against corrosion. 6. The non-toxic deformation missile according to claim 1, wherein the cavity (3) in the projectile body (1) consists of a front conical portion (31) and a rear cylindrical portion (32), wherein the apex angle β of the conical portion (31) of the cavity. it has a value of 10 ° -25 °, preferably a value of 12 ° - 14 °, the diameter of the cylindrical part (32) of the cavity preferably has a diameter of 0.5 mm - 0.8 mm smaller than the diameter of the steel ball. The non-toxic controlled deformation bullet according to claim 1, wherein the bottom of the cavity is preferably at least at a distance from the bullet tip at the top edge of the groove formed on the outer surface of the bullet from the bullet tip. A curvature is preferably provided between the bottom surface and the walls of the cavity to prevent part of the projectile from detaching when penetrating the target, and preferably has a radius of 0.5 mm -1.00 mm for the projectile diameter of 9 mm 8. The non-toxic controlled deflection bullet according to claims 1 and 2, characterized in that the metal ball (4) is embedded in the bullet body (1) in the conical part (31) of the cavity so that the front part of the metal ball (4) protrudes one third of its diameter from the mouth of the bullet cavity and forms the tip of the bullet and the metal ball (4) is secured in the body (1) bullet. 9. The non-toxic missile-controlled missile according to claim 1, characterized in that the missile body (1) is provided with a functional groove (2), the cross-section of which is in the form of a smooth curve or shaped recess, to clean the barrel bore and control the deformation. • · · · · · · · · · · · · · · · · · · · · · · · · · · 10. The non-toxic deformation missile of claim 1, wherein the missile may have a single diameter, the diameter of the projectile, or, for a given caliber, two or more diameters that are graduated from the projectile orifice, retaining the ball diameter and the orifice diameter, depth. opening and wall thickness of the body in relation to controlled deformation. The non-toxic deformation missile according to claim 1, characterized in that the diameter of the projectile, measured in the cross section of the projectile, guided at a location with a maximum groove depth is preferably in a ratio of 1.3-1.7 to the diameter of the cylindrical portion (32) of the cavity. . The non-toxic deformation missile according to claim 1, characterized in that the diameter of the missile relative to the maximum diameter of the cavity is preferably 1.50 - 1.75. The non-toxic deflected bullet according to claim 5, characterized in that the diameter of the 9 mm steel ball is preferably 4.5 mm - 5.5 mm. 14. The non-toxic controlled deformation bullet of claim 1, wherein the bullet deforms as a function of the resistance of the target material, in which the center of gravity of the projectile is displaced and there is no deflection from the longitudinal axis thereof. 15. The non-toxic deformation missile of claim 3, wherein the missile body is coated with Sn coating, teflon coating, or chemically passivated.