Device and method for counteracting contact-impact events of elongated sub-projectiles

Patent metadata

Field	Value
Publication number	US-11236980-B2
Application number	US-201816764450-A
Country	US
Kind code	B2
Filing date	Sep 26, 2018
Priority date	Nov 28, 2017
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A holding device and method for decreasing the contact-impact event on sub-projectiles when fired from a barrel, cylinder, carrier shell or the like includes a core and at least two legs that at least partially enclose at least one sub-projectile each. When a projectile is fired from a barrel or the like the sub-projectiles load the legs of the device which are deformed and open up and release the sub-projectiles in a controlled manner without tumbling which leads them to hit and penetrate their target with the short-side. A holding device including sub-projectiles and a projectile including the holding device are also provided.

First claim

The invention claimed is:

1. A holding device for counteracting a contact-impact event on elongated sub-projectiles when fired from a spin stabilized carrier shell, wherein the holding device comprises a core comprising at least two legs at least partially enclosing at least one sub-projectile each, wherein the holding device is deformed due to centrifugal forces influencing the sub-projectiles caused by rotation of the sub-projectiles such that the sub-projectiles are released in a controlled manner upon being fired from the carrier shell, wherein the core is wider in cross-section when viewed in a direction of a longitudinal axis of the holding device than any of the at least two legs, and wherein the holding device is molded, and the legs of the holding device are deformable relative to the core.

2. The holding device according to claim 1 , wherein the at least two legs include up to twelve legs.

3. The holding device according to claim 1 , wherein the holding device is made of plastics, aluminium, magnesium, or steel.

4. The holding device according to claim 1 , wherein the legs can enclose up to five sub-projectiles each.

5. The holding device according to claim 1 , comprising sub-projectiles.

6. A projectile comprising a holding device according to claim 1 .

7. A process for adapting a projectile for firing sub-projectiles without or decreased contact-impact events when fired from a barrel/cylinder, or carrier shell, by arranging the holding device comprising elongated sub-projectiles in a projectile according to claim 6 .

8. A process for counteracting the contact impact event of a sub-projectile fired from a spin stabilized carrier shell, wherein said process comprises the following steps:
arranging sub-projectiles in a holding device comprising a core comprising at least two leas at least partially enclosing at least one sub-projectile each, wherein the holding device is adapted to be deformed due to centrifugal forces influencing the sub-projectiles caused by rotation of the sub-projectiles such that the sub-projectiles are released in a controlled manner upon being fired from the carrier shell, wherein the core is wider in cross-section when viewed in a direction of a longitudinal axis of the holding device than any of the at least two legs, and wherein the holding device is molded, and the legs of the holding device are deformable relative to the core.
firing the sub-projectile from the carrier shell, and
releasing the sub-projectiles from the holding device so that the legs of the holding device deform relative to the core and open up due to the centrifugal forces caused by rotation wherein the sub-projectiles are released in a controlled manner upon being fired from the carrier shell.

Assignees

• Bae Systems Bofors Ab

Inventors

• Thuman Christer
• Heiche Ulf
• Vesa Reijo

Classifications

• F42B12/06

  with hard or heavy core; Kinetic energy penetrators (F42B12/16, F42B12/74 take precedence) · CPC title

• F42B12/58 Primary

  Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles (F42B12/32 takes precedence) · CPC title

• F42B12/60 Primary

  the submissiles being ejected radially · CPC title

• F42B12/62 Primary

  the submissiles being ejected parallel to the longitudinal axis of the projectile · CPC title