DE8620702U1 - Soft projectile - Google Patents

Description

Walter Böhm ,, Stuttgart, 29 July 1986 Q-

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Stuttgart 50 5, J ,;, ''„'·',,' * >,,*>'>,, Soft projectile Description:

1. Non-lethal projectile intended as a bouncing and/or impacting distance device for riot control (Fig. 3 and 4)

2. It can be fired from smooth barrels or from barrels equipped with a twisting device in direct fire against particularly violent troublemakers without penetrating their uncovered skin.

When it hits the target, the soft nose of the projectile (1) is deformed (Fig. 2); The result is an increase in the projectile cross-section (2) and thus a lower cross-sectional load and a lower risk of injury.

3. The soft projectile is made of three different plastics in a composite construction (Fig. 1). The connection is made by gluing, welding, spraying or by casting. The projectile nose (1) with a radius of 1/2 the diameter of the projectile is made of tough, gelatinous polyvinyl chloride 5319/1099 with a Shore hardness of 5-10, in particular Mipoplast. The projectile body (3) with tail assembly (4) is made of a medium-hard polyurethane elastomer with a Shore hardness of 75, in particular Ureol 6402.

The material for the guide band (5) consists of a fluorocarbon, particularly Teflon, or another plastic with the same mechanical properties. The inner diameter of the guide band is provided with teeth (6) to guarantee a torque-locking connection to the projectile body.

4. A stable projectile flight is achieved by

- the twist of the gun barrel via the projectile’s guide band (3) provided with twist grooves (Fig. 2 and 3)

and a tail unit'(4), in which the tail unit angle of attack for projectile velocities in the subsonic range should be smaller than the angle of twist of the weapon barrel (Fig. 3)

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= a stabilizing band (7) with anchor knot (8) when firing from a weapon with a smooth barrel (Fig. 4)

- a tail angle of attack = 0° when firing from a weapon with a smooth barrel

5. The soft projectile is a component of a cartridge (Fig. 1) and ^a conventional cartridge case (9) for single and multiple-shot weapons, in particular police weapons of calibers 37 and 38 as well as 40 MM*

Claims (9)

Walter Böhm Stuttgart, 24 November 1986 /^ < Murgtalstr. 43 ,, ,,., ...... ~ Stuttgart 50 ' ! .· "S 1S ,* :&ldquor; Il Oi ill &bull; 111 I 113 Oji j &Lgr; ti Soft projectile Protection claims 1. Soft projectile, characterized by a drop-shaped rotating body. 2. Soft projectile according to claim 1, characterized in that the projectile nose (1) has a hemispherical shape and the material used is tough, plastic, gelatinous polyvinyl chloride with a Shore hardness of 5-10. 3* Soft projectile according to one of claims 1 or Z _t characterized by the ratio = ^{3 b1s 5} ' preferably 3 4. Soft projectile according to at least one of claims 1 to 3, characterized by a spin (5) and tail unit stabilization (4) 5. Soft projectile according to at least one of claims 1 to 3, characterized by a tail unit stabilization (4) and a guide band without swirl grooves (10). Design: tail unit as in Fig. 3 and guide band as in Fig. 4. 6. Soft projectile according to at least one of claims 1 to 3, characterized by a stabilizing band (7) with anchoring (8) and a guide band without twist grooves (10). 7. Soft projectile according to at least one of claims 1 to 6, characterized by a low projectile mass, for example between 60 and 90 g for a shell of 40 mm. 8. Soft projectile according to one of claims 1 to 4, characterized by a guide band with twist grooves (5) which has a torque- and thrust-locking connection to the projectile body (3). 9. Soft projectile according to one of claims 1 to 3 and 5 to 7, characterized by a guide band without swirl grooves (1Q), which has a shear-locking connection to the projectile body (3). H &iacgr;&idigr; M H tilt «· · · it» t Il I ■ * ■ t .
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