EP0716285B1 - Training projectile for gun barrel - Google Patents

Description

The invention relates to a practice projectile for barrel weapons, which is essentially one in shape and mass Standard practice floor or a combat floor, with a bullet hood and a bullet tail with guide band.

Practice shooting with barrel weapons from ground-based or airborne weapon systems is due to the Available shooting range and the one for the respective Ammunition valid danger zone limited. It is known that bullets bouncing off the floor after can stabilize again for a short time and then in continue flying in an undefined direction. It is possible that such re-established floor parts also leave the permissible danger zone.

Shattered bullets are generally known an impact or hitting a target medium disassemble more or less and thereby the danger area reduce. Through radial and longitudinal breaking points in connection with metal powder or other fillers in the floor hood are such Shatter projectiles are technically complex and economical less favorable to manufacture than conventional practice projectiles.

DE 39 02 112 C1 is a disassembly projectile head for practice ammunition revealed in a thin Hood a core is inserted, which one to the top of the floor has facing recess. On this recess there is a ball in the recess so immersed far that the center of the sphere above the top of the recess. In the event of an impact of the cutting head on a target medium the ball is in driven the recess. This is the core split up and disassembled when it bursts open Core surrounding hood.

A dismantling projectile head with a different design for practice ammunition is known from DE 36 42 414 Al. In this projectile head, a core is made of a pressed one or soaked metal powder in the floor hood introduced in the impact area conical with a flattened tip is formed. If this known Practice projectile hits a target medium, so the bullet hood bursts and the core is covered by the Impact forces almost broken down into powder form. Thereby becomes most of the energy of the practice floor reduced. By disassembling the core, in particular prevents the practice bullet from the target medium bounces off and possibly people on a practice area injured.

However, it is known that cutting heads of the aforementioned It is particularly suitable in the event of an oblique impact not reliably disassemble on a target medium and thereby represent a hazard, as described at the beginning.

Based on the aforementioned prior art, it is Object of the invention, a training floor for barrel weapons to create which is easy to manufacture and at Impact is broken down into at least two parts and thereby the risk of ricochets and the hazardous area noticeably reduced.

This object is achieved by the features of claim 1 solved. Innovative further training and refinements are the subclaims 2 up to 6.

By using the disassembly element as a so-called Separating element is it with technically simple and economically viable means possible to reach from rebounding practice projectiles by separation into to drastically reduce at least two parts, thereby practice shooting is also possible on smaller practice areas becomes.

The range reduction is essentially through achieved two physical laws. On the one hand put the two remaining parts after separation of the practice floor by ballistic disassembly unfavorable, d. H. with a higher drag coefficient afflicted bodies whose flight speed is different degrades much faster than a whole floor. A new stabilization of such fragments of floors is also unlikely. To the others are the two or more story fragments after disassembling the practice floor easier than the entire floor. This is the floor parts remaining speed very quickly reduced.

Figur 1

Ein Übungsgeschoß mit eingesetztem Zerlegeelement im Halbschnitt

Figur 2

Das Zerlegeelement gemäß Figur 1 mit innenliegender Sollbruchstelle

Figur 3

Ein Zerlegeelement anderer Bauart mit innenliegender Sollbruchstelle

Figur 4

Ein Zerlegeelement noch anderer Bauart mit außenliegender Sollbruchstelle

Figur 5

Ein Zerlegeelement für ein Übungsgeschoß mit innen- und außenliegender Sollbruchstelle

Figur 6

Ein Übungsgeschoß mit einem Zerlegeelement nach Figur 3 in Kombination mit Preßkörpern

Figur 7

Ein Übungsgeschoß mit Zerlegeelement nach Figur 3 in Kombination mit Preßkörpern und Zerlege-Formkörpern.

An example of the invention is shown in the drawing. Show it:

Figure 1

A practice floor with an inserted disassembly element in half cut

Figure 2

The disassembly element according to Figure 1 with an internal predetermined breaking point

Figure 3

A disassembly element of another design with an internal predetermined breaking point

Figure 4

A disassembly element of yet another design with an external predetermined breaking point

Figure 5

A disassembly element for a practice floor with an internal and external predetermined breaking point

Figure 6

A practice floor with a disassembling element according to Figure 3 in combination with compacts

Figure 7

A training projectile with disassembly element according to Figure 3 in combination with compacts and disassembly molded bodies.

The practice floor essentially consists of a floor hood 2 and a bullet tail 3, which is the guide band 4 accommodates in an annular groove. The storey hood 2 and the tail 3 are by a disassembly element 5, which is hollow cylindrical and to both Sides of a central area 6 thread approaches 7 and 8 has connected. With the threaded approach 7 that is Disassembly element 6 in a corresponding internal thread a blind hole 9 of the projectile hood 2 is screwed in. The tailgate 3 is with an internal thread of the recess 10 screwed onto the threaded attachment 8. In In the example of FIG. 1, the central region 6 of the Disassembly element 5 has the same outer diameter 11 like the hood 2 and the tail 3. This means that the central region 6 of the disassembly element 5 ring-shaped between the facing end faces the floor hood 2 and the rear floor 3 is located.

The dismantling element 5 according to FIG. 1 has one in the middle part 6 inner circumferential radial groove 12, which as Radial set point serves, as clearly shown in Figure 2 is highlighted.

The disassembly element 5 is made of a high-strength wrought aluminum alloy manufactured which has a lower Temperature dependence of the notch toughness as Steel. The remaining wall thickness 13 of the radial breaking point 12 is dimensioned so that the practice floor in the event of a collision with a target medium disassembled at least two parts. This is also guaranteed if the practice floor 1 in a relative flat impact angle of, for example, 10 ° degrees hits a target medium.

Due to a structurally favorable location of the separation point between the bonnet 2 and the tailgate 3 can be the most cost-effective ballistics in most cases the storey hood 2 compensated for by a lower residual mass be so that for the two disassembled parts Similar remaining trajectories and distances can be reached are.

In Figure 3 is a disassembling element 14 in a slightly modified Design shown. This disassembling element 14 differs from the disassembly element 5 according to FIG. 2 or according to Figure 1 in that the central region is radial does not protrude beyond the two threaded lugs 7 and 8. The middle area 15, on the inside again a circumferential radial breaking point 12 is introduced is in the outer diameter with the Inner diameter of the blind bore 9 of the projectile hood 2 or with the recess 10 in the tail end. Thereby is the central region 15 of the disassembly element 14 according to FIGS. 6 and 7 within the floor covering, the radial breaking point 12 directly below the dividing line 16 between the floor hood 2 and the tail 3 is located.

The disassembly element 17 according to FIG. 4 has a similar structure as the disassembly element 14 in Figure 3. As the only one The difference is that this dismantling element 17 has an outer circumferential one Radial set point 18.

In Figure 5 is again a disassembling element 19 in half section shown which the disassembling element from the building 14 corresponds. However, are in the disassembly element 19 now an inner circumferential and an outer circumferential Radial set point 20 or 21 introduced.

All of the aforementioned disassembly elements 5, 14, 17 and 19 are met the requirements set optimally. In all cases was used in test series on a practice floor Steel the perfect disassembly of the practice floor 1 proven in at least two parts.

FIG. 6 again shows a practice floor 22 with a Missile hood 2 and a missile tail 3 with a guide band 4. The projectile hood 2 and the projectile tail 3 are in turn by a disassembly element 23 connected, only the threaded lugs 7 and 8 have different diameters. The radial breaking point 12 is located directly below the parting line 16 between the hood 2 and the tail 3. In the front area of exercise floor 2 are located one or more compacts 24, 25 and 26 made of an iron powder.

The exercise floor 22 according to FIG. 7 is again with a Disassembly element 23 provided as the only difference 6 are in this case according to FIG. 7 between the disassembling element 23 and the pressing body 24 spherical shaped bodies 27 and 28 of different Diameters used. Through the use of compacts 24, 25 and 26 and shaped bodies 27 and 28 is the Disassembly of practice levels 1 and 22 further optimized. By moving the separation point 16 am Practice floor 22.1 will then be a relatively difficult Ballistic-optimized storey hood 2 in several uncritical ones Parts disassembled on target impact. For the tailgate 3 remains only a relative lighter, ballistically unfavorable cylinder-like flying Residual body.

As shown in FIGS. 6 and 7, the disassembly element serves 23 not just connecting and disconnecting Bullet hood 2 and tailgate 3, but allowed at the same time also a backlash free and to the tailgate 3 fixation of packing elements independent of length tolerance 24, 25, 26, 27 and 28 in the floor hood 2. One construction 6 or 7 is technically more complex than that Construction of practice level 1 according to Figure 1. Here it is left to the specialist, taking into account the right demands on him Construction variant for a practice floor 1 or 22 to choose which one at least in the event of a target impact disassembled two parts.

Claims (6)

1. Training projectile for barrel weapons, which in form and mass largely corresponds to a training projectile or to a combat projectile, with a projectile cap (2) and a projectile tail (3) and slide ring (4), characterised by the fact that between the projectile cap (2) and the projectile tail (3) a dismountable element (5,14,17,19,23) is located which interconnects both parts and which is provided with at least one radial pre-set rupturing point (12,18,20,21) situated internally or extemally.
2. Training projectile in accordance with Claim 1, characterised by the fact that the radial pre-set rupturing point (12,18,20,21) is provided in a central zone (6,15) of the dismountable element (5,14,17,19,23), radially spaced from the separating point between the projectile tail (3) and the projectile cap (2).
3. Training projectile in accordance with Claim 1 or 2, characterised by the fact that the radial pre-set rupturing point (12,18,20,21) is mounted annularly around the dismountable element (5,14,17,19,23).
4. Training projectile in accordance with Claims 1 to 3, characterised by the fact that the dismountable element (5,14,17,19,23) has a central zone (6,15) of which the external diameter is equal to or smaller than the external diameter of the projectile tail (3) and/or the projectile cap (2).
5. Training projectile in accordance with any one of Claims 1 to 4, characterised by the fact that the dismountable element (5,14,17,19,23) is made of a high-strength ductile aluminium alloy.
6. Training projectile in accordance with any one of Claims 1 to 5, characterised by the fact that the dismountable element (5,14,17,19,23) secures with tolerance dependent relationship shaped bodies (24,25,26,27,28) located in the projectile cap (2).

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