Projectile having a discardable sabot

Patent metadata

Field	Value
Publication number	US-9528806-B2
Application number	US-201313834812-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Sep 16, 2010
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

The invention relates to a sabot ( 4 ) for a sub-caliber projectile ( 1 ) having a projectile core ( 2 ). When the projectile exits a weapon barrel, the sabot detaches from the projectile core ( 2 ) without transferring momentum by means of a separating aid ( 4 ) incorporated between the projectile core ( 2 ) and the sabot. The separating aid ( 4 ) has a plurality of fingers ( 5 ) having at least one predetermined breaking point ( 8 a, 8 b ), which is connected to the projectile core ( 2 ) by a type of snap-connection bead ( 6 ) on the fingers/braces ( 5 ).

First claim

The invention claimed is:

1. A sabot and separation aid for a projectile provided with a sub-caliber projectile core, wherein the sabot and separation aid comprise:
(a) sabot; and
(b) a separation aid integrated between a bottom of the projectile core and the sabot body in order to separate the sabot from the projectile core, wherein the separation aid comprises
i. a plurality of fingers contacting the projectile core; and
ii. a supporting surface or ring that connects the plurality of fingers with each other, wherein the supporting surface or ring is arranged below the bottom of the projectile core, and wherein at least one predetermined breaking point is provided in each finger of the plurality of fingers.

2. A sabot according to claim 1 , wherein each finger includes an interior bulge that contacts the projectile core.

3. A sabot according to claim 2 , wherein each finger includes one or more grooves whose shapes are selected from one or more different geometric arrangements.

4. A sabot according to claim 3 , wherein a plurality of additional grooves are located in the supporting surface or ring.

5. A sabot according to claim 1 , wherein each finger includes one or more grooves whose shapes are selected from one or more different geometric arrangements.

6. A sabot according to claim 5 , wherein each groove has an angular shape that includes a contour selected from the group consisting of a triangular contour and a multi-angular contour, and each groove has edges selected from the group consisting of pointed edges, rounded-off edges and beveled edges.

7. A sabot according to claim 6 , wherein a plurality of additional grooves are located in the supporting surface or ring.

8. A sabot according to claim 5 , wherein a plurality of additional grooves are located in the supporting surface or ring.

9. A sabot according to claim 5 , wherein each groove has an angular shape that includes a contour selected from the group consisting of a triangular contour and a multi-angular contour, and each groove has edges selected from the group consisting of pointed edges, rounded-off edges and beveled edges.

10. A sabot according to claim 9 , wherein a plurality of additional grooves are located in the supporting surface or ring.

11. A sabot according to claim 1 , wherein the supporting surface or ring includes a horizontal surface, or an inclined surface, or a rounded-off surface, or a surface that is inclined and rounded off.

12. A sabot according to claim 1 , wherein a shape of each finger is predetermined relative to a cross-section so that sidewalls of each finger are pointed towards a center of the separation aid, or are parallel to each other, or are pointed to a point exterior to the separation aid.

13. A sabot according to claim 1 , wherein the number of fingers as well as a length of each finger is dependent upon a diameter and length of the projectile core.

14. A projectile comprising:
(a) a sub-caliber projectile core;
(b) a sabot enclosing the sub-caliber projectile core; and
(c) a separation aid integrated between a bottom of the projectile core and a bottom of the sabot in order to separate the sabot from the projectile core, wherein the separation aid comprises
i. a plurality of fingers contacting the projectile core; and
ii. a supporting surface or ring that connects the plurality of fingers with each other, wherein the supporting surface or ring is arranged below the bottom of the projectile core, and wherein at least one predetermined breaking point is provided in each finger of the plurality of fingers.

15. A projectile according to claim 14 , wherein each finger includes an interior bulge that contacts the projectile core.

16. A projectile according to claim 15 , wherein each finger includes one or more grooves whose shapes are selected from one or more different geometric arrangements that have an angular shape that includes a contour selected from the group consisting of a triangular contour and a multi-angular contour, and each groove has edges selected from the group consisting of pointed edges, rounded-off edges and beveled edges.

17. A projectile according to claim 16 , wherein a plurality of additional grooves are located in the supporting surface or ring.

18. A projectile according to claim 17 , wherein the supporting surface or ring includes a horizontal surface, or an inclined surface, or a rounded-off surface, or a surface that is inclined and rounded off.

19. A projectile according to claim 17 , wherein a shape of each finger is predetermined relative to a cross-section so that sidewalls of each finger are pointed towards a center of the separation aid, or are parallel to each other, or are pointed to a point exterior to the separation aid.

Assignees

• Rwm Schweiz Ag
• Rheinmetall Waffe Munition Gmbh

Inventors

• Rossmann Rudolf
• Ketelhut Kai
• Blache Andreas

Classifications

• F42B14/06 Primary

  Sub-calibre projectiles having sabots; Sabots therefor · CPC title

• F42B14/064 Primary

  Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base · CPC title

• F42B14/08

  Sabots filled with propulsive charges; Removing sabots by combustion of pyrotechnic elements or by propulsive-gas pressure (arrangements on barrels for removing sabots from projectiles F41A21/46) · CPC title