HOLLOW-CHANNEL PROJECTILE NOSE AND SHAPING OF A PROJECTILE BODY IN THE NOSE REGION

• US 20140202351A1
• Filed: 08/07/2012
• Published: 07/24/2014
• Est. Priority Date: 08/08/2011
• Status: Active Grant

• Current Assignee: RWS GmbH
• Original Assignee: RUAG Ammotec GmbH (Government of Switzerland)
• Inventors: Muskat, Erich, Rieb, Heinz
• Granted Patent: US 9,003,974 B2
• Time in Patent Office: Days
• US Class Current: 102/514
• CPC Class Codes: F42B 12/02 characterised by the warhead or the intended effect
• CPC Class Codes: F42B 12/34 expanding before or on impact, i.e. of dumdum or mushroom type
• CPC Class Codes: F42B 12/74 of the core or solid body
• CPC Class Codes: F42B 12/745 the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers

Abstract

The invention relates to a projectile having a cylindrical hole (15) arranged at the nose as seen in the firing direction, said hole (15) extending coaxially with the longitudinal axis (12) of the projectile and a projectile nose (1) being inserted into this hole, wherein the longitudinal axis (12) of the projectile at the same time also forms the longitudinal axis of the projectile nose (1). In order that accelerated expansion of the projectile occurs when the projectile strikes a soft medium, it is proposed according to the invention that an open hollow channel (5) is introduced in the projectile nose (1) coaxially with the longitudinal axis (12), said hollow channel (5) extending from the front end (22) to the rear end (23) of the projectile nose (1), as seen in the firing direction, and a membrane (6) is arranged in the hollow channel (5), said membrane dividing the hollow channel (5) into two hollow-channel portions (5a, 5b).

Claims

1. A projectile having a cylindrical bore arranged at the tip, as seen in the direction of firing, said bore running coaxially with a longitudinal axis of the projectile and a projectile tip is inserted into this bore, wherein the longitudinal axis of the projectile also forms the longitudinal axis of the projectile tip, characterized in that an open hollow channel is formed coaxially with the longitudinal axis in the projectile tip, extending from the front end to the rear end of the projectile tip in the direction of firing, and a membrane which divides the hollow channel into two hollow channels sections is provided in the hollow channel.

2. The projectile according to claim 1, characterized in that the front region of the projectile tip has a conical shape with an angle β

, where the diameter at the front end is the smallest and the rear end of the projectile tip is designed as a holding cylinder and has a diameter adapted to the cylinder bore in the projectile.

3. The projectile according to claim 2, characterized in that the conical front region develops into the holding cylinder at its end facing the holding cylinder by way of a bevel with an expansion angle a wherein the expansion angle a is measured clockwise from the longitudinal axis.

4. The projectile according to claim 3, characterized in that the expansion angle a is between 10°

and 80°

.

5. The projectile according to claim 3, characterized in that the bevel rests flatly on the corresponding surfaces of the projectile body and on jacketed projectiles of the projectile jacket.

6. The projectile according to claim 1, characterized in that the front end of the projectile tip is provided with a flat surface.

7. The projectile according to claim 1, characterized in that the projectile tip is made of the following materials:

plastics, polymer plastics with or without additives.

8. The projectile according to claim 7, characterized in that the additives are glass fibers, metal powder or powders of metal compounds such as BaSO₄ or colored pigments.

9. The projectile according to claim 1, characterized in that projectile tip is made of the following materials:

completely of metal, or metal alloys such as aluminum, produced by the die casting method.

10. The projectile according to claim 1, characterized in that a clearance is provided between the rear end of the projectile tip and the bottom of the cylindrical bore.

11. The projectile according to claim 1, characterized in that the projectile is a jacketed projectile or a non-disintegrable projectile.