DE3106263C2 - Sabot projectile - Google Patents

Abstract

A sub-caliber sabot projectile (1, 2) that can be designed either as an arrow or twist projectile is proposed. This projectile is based on the task of providing means for automatically decoupling the sabot (3) from the projectile (2) when leaving the barrel in a simple, safe and also cost-effective manner. This is done in that a sleeve (4c) is fastened centrally in the sabot (3) and has a central bore (4d) pointing in the direction of the tip of the projectile. This forms a press connection together with a corresponding bolt (5) fastened in the projectile (2). When firing, there is an axial relative movement of the bolt (5) connected to the projectile (2) relative to the sleeve (4c) due to the force of inertia. A cone (5a) arranged on the bolt (5) simultaneously bursts the sleeve (4c) at axial and radial predetermined breaking points (4e, 4f) specially provided for this purpose, so that the projectile (2) from the sabot (3) and the sleeve (4c ) is separated.

Description

The invention relates to means for the automatic uncoupling of the sabot from the projectile body during Shooting of a sabot projectile designed as a twisted or arrow projectile from a rifled or smooth weapon barrel, the means by an inertia axial relative movement between the sabot and projectile body are effective.

From DE-OS 19 38 605 a sabot projectile is known in which the uncoupling of the sabot takes place from the projectile body by radial movements between the projectile core and the sabot. This coupling principle is therefore not applicable to smooth or drawn gun barrels. After When the thread is loosened, the acceleration forces act directly on the tail unit of the propellant shell, whereby the tail unit wings are heavily loaded.

The AT-PS 267 368 discloses a Trcibspiegelgcschoss, in which the sabot is detached from the body by träghcilskraftljedingtc axial relative movement is separated. The projectile body is designed here as a shear punch, which changes during acceleration of the sabot projectile moved backwards in the weapon barrel relative to the sabot and in cooperation the shear edge and the end face of the screw-in the projectile rear surface along the Circumference. The radial guidance during the passage of the pipe is guaranteed in this case.

From US-PS 29 92 612 the holder of a projectile in a sabot is known. The sub-caliber The projectile is held in the case by a screw thread or a press fit. It deals about a Drailgeschoß. in which the force of the return on the retaining ring this during the lap acceleration Moved backwards due to inertia forces. Only after leaving the barrel the separation of the sabot from the Gc projectile body. Resetting the retaining ring to expand of the sabot takes place through the rotary movement and the axial relative movement of the projectile body. The use of an arrow bullet is not possible with the coupling means according to this US-PS 29 92 612 The solution according to this citation is limited overall to the twist-dependent resetting conical retaining rings on the outer circumference. in order to blast off a sleeve provided with predetermined breaking pins, when the projectile has left the gun barrel

The US-PS 27 15 874 discloses a projectile with a rear hub which protrudes into a sabot. The radial guidance of the projectile is guaranteed during the passage of the pipe. From this citation the use of the projectile mass for the inertial force can also be seen in general.

Based on the prior art, the object of the invention is to provide a means for automatic decoupling to create a sabot from the projectile body of a sabot projectile that is universal both at Sub-caliber twist projectiles as well as Pfcil projectiles can be used and easy and safe in the Structure and mode of operation is, in addition, a great durability in the bullet / ulführung in the WaITo. a separation at the time of launch and an introductory course: guaranteed during the pipe run.

This task is made according to the invention by a centered on a pin with binding system in the sabot Gelagcrle sleeve with a (lap body tip / e facing central bore solved, which together with a bolt arranged in the projectile rear a forms separable press connection by axial relative movement, one on the bolt with in the direction of the Sabot tapered cone bursts the sleeve at the axial and / or radial predetermined breaking points and the projectile body releases while maintaining its radial guidance during the passage of the pipe. In this case, in accordance with the invention Training the ring-shaped predetermined breaking point close to the collar opposite the bottom of the case be offset by a distance to the projectile body pit / c, which after breaking the Sollbruchsiellcn a Forms guide collar for the projectile body. Furthermore, a free one can be placed between the case base and the bolt Distance exist which is smaller than a free distance between the collar and the Stnbilisimingsflügelcln at an arrow projectile.

A twist is advantageous in this solution of the projectile / to uncouple the sabot * not necessary. In addition, the coupling means also allow the F.insai / an arrow bullet. Advantageous proves itself in the case of the

bo floor. that it is simple in construction and relatively few individual parts can be produced and assembled. Since the clutch uses the Fliehkrafiprin / ips avoids can, for example, twisted to springs and thread arrangements that are complex to manufacture will. By taking advantage of the bullet inertia forces occurring at the end, the coupling Can be used equally well for twist and arrow projectiles. In addition to ensuring a high level of durability

wedge also the proper separation of the projectile core when feeding such projectiles to the weapon from the sabot or sabot at the moment of leaving the gun barrel muzzle. Under the Durability is, for example, the bullet's resistance to the forces of acceleration to understand which when ejecting ice cartridge from a good limb as well as their introduction into the pairon bearing of the weapon. These two criteria are particularly important for weapon systems with high cadence. Through the one carrying the projectile Siifi with bund system is when the projectile is shot down a punching through of the sabot avoided.

The free Absland between the case base and the bolt ensures that when firing and the the resulting relative movement of the projectile core, the stabilizing wings are stress-free This avoids breakage of the stabilizing wings. Essential to ensure the Trennfunklion between the projectile core and the sabot has the characteristics that in the axial direction extending SoHbruchstellecn are arranged and on the side facing the sabot of the Sleeve a predetermined breaking point running in reverse direction! Ie is provided.

The drawing shows the invention in an exemplary embodiment shown. It shows

F i g. 1 shows a longitudinal section through part of a mirror floor plan;

F i g. 2 shows an enlarged cross-section II-11 me F i g. I;

Ii μ. J cine lünzclheil III according to Fig. I;
Ii μ. Ί ilii- Fin / elheil η; κ · Ιι Fi) ;. S uiimiiiclhur after iliMii ΛΙίμ-IiiiU dos (icschosM-s.

l); is in its entirety with 1 be / eiohiiolo Treib-NpiegeliieschoLl essentially steal from a knot with stabilizing wings and a sabot }. A pin 4 is pressed into the center of the sabot 3. This consists of a collar 4a, a cone 46 and a sleeve 4c its center has a hole 4c / into which a bolt 5 connected to the projectile 2 is pressed. The bolt 5 goes in the direction of the - Gcschoßspil / .c in a cone 5a - not shown. The sleeve 4e carries circumferentially divided several predetermined breaking points 4c extending in the axial direction as well as on their to The side facing the sabot 3 has a predetermined breaking point 4 / ″ running in the radial direction.

Between a case base 4g and the bolt 5 - before the projectile 2 is fired - a free space 11 is provided. This is smaller than the land 12 provided between the collar 4a and the stabilizing wings 6.

The annular predetermined breaking point 4 / "is - in the direction of flight of the projectile 2 seen - compared to the case base 4 ^. 'uin a distance 13 offset.

As a result of the launch acceleration, the bolt 5 pressed into the bore 4c / is separated under the influence of the inertial force of the projectile 2 immediately after the projectile starts to move. During this process, the bolt 5 overcomes the frictional force existing between the bore 4d and the bolt 5. At the same time takes place in the axial direction of a relative movement between the sleeve and the bolt 5 4c corresponding to the distance 11. In this movement the cone beyond 5) by its rubbing on the sleeve 4fdie in or on these disordered umfungsvcrteilten SoHbruchstellcn 4c.4fund are the projectile 2 free.

After the sleeve 4c has been broken open, the radial guidance of the projectile 2 is initially retained by the collar 4ft.

Is the sabot projectile 1 from a not shown

5 set weapon barrel leaked, the sabot 3 is due to its, compared to the projectile 2 essential

higher, drag coefficient strongly braked. The projectile 2 emerges from the sabot 3, wherein the collar 4Λ of the pin 4 releases the bolt 5. That

ίο Floor 2 is then supported by the stabilizing wings 6 stabilized

The outer contour of the floor 2 is not subject to any Influence through the clutch. This in turn allows an optimal aerodynamic flow around 15 of floor 2.

1 sheet of drawings

Claims (3)

Patent claims: 1. Means for the automatic uncoupling of the sabot from the projectile body at the end of a sabot projectile designed as a twisted or arrow projectile from a drawn or smooth weapon barrel, the means being effective through an inertial axial relative movement between the sabot and the projectile body, characterized by a pin (4) Sleeve (Ac ), mounted in a zeniric manner with collar contact in the sabot (3), with a central bore (Ad) facing the tip of the projectile body, which, together with a bolt (5) arranged in the rear of the projectile, forms a press connection that can be separated by relative axial movement, whereby a press connection on the bolt ( 5) with the cone (Sa ) tapered towards the sabot (3), the sleeve (4c,} bursts at the axial and / or radial predetermined breaking points (Ae, Af) and releases the projectile body (2) while maintaining its radial guidance during the passage of the tube . 2. Means for automatic decoupling according to claim 1, characterized in that the annular predetermined breaking point (Af) close to the collar (Aa) relative to the case base (Ag) is offset by a distance (13) to the projectile body tip, which after breaking the predetermined breaking point ( 4e, Af) forms a guide collar (Ah) for the projectile body (2). 3. Means for automatic decoupling according to claim 1, characterized in that there is a free distance (11) between the sleeve base (Ag) and the bolt (5) which is smaller than a free distance (12) between the collar (Aa) and the stabilizing wings (6) in the case of an arrow shot.