EP1508767B1 - Projectile head for training ammunition - Google Patents

Abstract

The practice projectile (1) for a practice cartridge, e.g. for a 120 mm tank gun, is of the same caliber as combat ammunition. The cartridge (3) for the propellant, also in the full-size caliber, has an integrated projectile base (4) with a projecting extension (8) to fit within a recess (11) in the projectile. The extension has an open end (9), and contains the combat shell detonator (10). The practice projectile has an inner limit stop (13) within the recess at the end towards the propellant, to prevent the projecting detonator unit entering fully into the base recess.

Description

The invention relates to a projectile head for a practice cartridge with the features specified in the preamble of claim 1.

From DE 42 02 780 A1 it is already known, large-caliber multi-purpose cartridges (MZ cartridge), as they are fired, for example, from 120 mm tank guns, build modular. One of the advantages of such a modular construction is that it can be decided on-site (i.e., immediately prior to use of the cartridge) whether a practice bullet or a caliber-equivalent combat bullet is to be fired.

For this reason, the same drive part is used for the exercise and combat cartridge, which also includes a connectable with two bullet heads projectile tail section. To connect the drive member and the respective projectile head projects projectile head side from the drive part of a peg-shaped extension of the projectile rear part out, which is screwed into a corresponding receptacle of the projectile head. Before screwing the drive member and the warhead must, however, usually a warhead detonator in a bullet head-side open recess of the peg-shaped extension of the projectile tail section must be introduced.

It has now been found that, for example, in a Umlaborierung a battle cartridge in a practice cartridge on site, the removal of the warhead igniter easily forgotten can be, so that the then spent practice cartridge still contains the warhead detonator, which can lead to an undesirable threat to the practice floor later using people and their environment.

The invention has for its object to provide a projectile head for a practice cartridge of the type mentioned above, which is only connectable to a drive member for forming the practice cartridge, if it is ensured that there is no warhead detonator in the drive part.

This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

The invention is based essentially on the idea to provide the projectile head of the exercise cartridge on its side facing the drive part with an extending into the interior of the recording stop, such that when existing warhead detonator this when connecting drive part and projectile head abuts against the stop and prevents the extension of the projectile tail section reaches its final position in the recording of the projectile head.

Particularly simple, the stop can be mounted when it is pin-shaped and extends perpendicular to the longitudinal axis of the projectile head through the receptacle.

If a screw connection is provided between projectile head and drive part, it has proved to be particularly advantageous if in the presence of a warhead igniter it abuts so early against the stop that the threads of the components can not touch and screwing of the drive part and projectile head therefore not possible is.

If the projectile head carries a guide band at the rear, it has proved expedient if the pin-shaped stop below the guide strip extends into or through the receptacle and is guided laterally by at least one extending up to the guide band bore in the projectile head wall. Such an arrangement has the advantage that it is already ensured in the production of the training projectile that actually a stop is available. Otherwise, during injection molding of the guide strip, corresponding plastic would pass through the bore of the projectile head wall into the receptacle and no guide strip would form. In addition, the stop is fixed by the guide band.

In order to ensure a quick mounting of the pin-shaped projection in the projectile head, it has also proven to be advantageous to provide the pin with a head part, which is arranged within a directly adjacent to the guide band widened bore, wherein the length of the pin is chosen such that its end opposite the head part engages in a blind hole of the projectile head wall.

By the invention, therefore, the reliability of the exercise cartridge against mishandling to a considerable extent compared to known comparable exercise cartridges and at the same time achieves a pre-control function of the subsequent reliability during production.

• Fig.1 Längsschnitte eines erfindungsgemäßen Geschoßkopfes und eines Antriebsteiles mit geschoßkopfseitig angeordnetem Gefechtskopfzünder;
• Fig.2 eine Fig.1 entsprechende Ansicht beim Versuch, den Geschoßkopf und das Antriebsteil miteinander zu verbinden, und
• Fig.3 eine aus Antriebsteil und erfindungsgemäßen Geschoßkopf bestehende Übungspatrone.

Further details and advantages of the invention will become apparent from the following with reference to figures explained embodiments. Show it:

• Fig.1 longitudinal sections of a projectile head according to the invention and a drive member with bullet head side arranged warhead igniter;
• Figure 2 is a view corresponding to Figure 1 in an attempt to connect the projectile head and the drive member together, and
• 3 a consisting of drive part and projectile projectile training cartridge.

1, a projectile head for a practice cartridge 2 (FIG. 3) and 3 a drive part with an integrated, known projectile rear part 4 of the corresponding training projectile 5 are designated by 1. The arranged from a shaft part 6 with it Folding wings 7 existing projectile tail section 4 of the training projectile 5 has a bullet head side provided with an external thread peg-shaped extension 8. In the peg-shaped extension 8 is a front-side recess 9, in which a warhead detonator 10 is arranged.

The trained as a hollow body projectile head 1 has a rear side provided with a threaded receptacle 11 for the peg-shaped extension 8 of the drive part 3 and is provided on the outside with a guide strip 12.

According to the invention, the projectile head 1 comprises on its side facing the drive part 3 a perpendicular to the longitudinal axis 21 of the projectile head 1 completely extending through the receptacle 11 pin-shaped stopper 13. This stop 13 has from the rear end face 14 of the projectile head 1 a distance 15, which in such a way is selected that the stop 13 when connecting drive part 3 and projectile head 1 (Figure 2) abuts against the front end face 16 of the warhead igniter 10 before the threads of the components can touch, so that screwing of drive part 3 and projectile head 1 not is possible.

As can be seen in Figures 1-3, the pin-shaped stopper 13 is located in the region below the guide strip 12 of the projectile head 1 and is supported on one side by a head portion 17 in an extended bore 18 located immediately below the guide band 12 in the projectile head wall 19 off. On its side opposite the head part 17, the stop 13 extends into a blind hole 20 of the projectile head wall 19.

Of course, the invention is not limited to the embodiment described above. Thus, the stop must not necessarily be pin-shaped, but may for example also have a tab-like shape.

LIST OF REFERENCE NUMBERS

1

projectile head

2

practice round

3

driving part

4

Projectile tail section

5

training projectile

6

shank part

7

folding wings

8th

renewal

9

recess

10

Warhead fuze

11

admission

12

guide band

13

attack

14

End face (projectile head)

15

distance

16

Face (warhead detonator)

17

headboard

18

drilling

19

Projectile nose wall

20

Blind hole

21

longitudinal axis

Claims (6)

1. Projectile nose for a blank cartridge (2) which has a drive part (3), which can be used both for blank cartridges and for live cartridges of the same calibre and has an integrated projectile tail part (4), in which the projectile nose (1) of the blank cartridge or live cartridge can be connected to an extension (8) of the projectile tail part (4), which is in the form of a pin and can be inserted into a holder (11) in the projectile nose (1), and in which the extension (8) includes a recess (9), which is open at the front end, for a warhead fuze (10), characterized in that the projectile nose (1) of the blank cartridge (2) has on its side facing the drive part (3) a stop (13) which extends into the interior of the holder (11), such that, when the warhead fuze (10) is fitted, this abuts against the stop (13) on connection of the drive part (3) and projectile nose (1) and prevents the extension (8) from reaching its final position in the holder (11) in the projectile nose (1).
2. Projectile nose according to Claim 1, characterized in that the projectile nose (1) can be connected to the drive part (3) via a screw connection, and in that the stop (13) is arranged in the projectile nose (1) such that, when a warhead fuze (10) is present, this abuts against the stop (13) at such an early stage during the connection of the drive part (3) and the projectile nose (1) that the thread pitches of the drive part (3) and projectile nose (1) cannot touch each other, so that it is therefore impossible to screw the drive part (3) and the projectile nose (1) together.
3. Projectile nose according to Claim 1 or 2, characterized in that the stop (13) is in the form of a pin and extends through the holder (11) at right angles to the longitudinal axis (21) of the projectile nose (1).
4. Projectile nose according to Claim 3, characterized in that the stop (13), which is in the form of a pin, extends into or through the holder (11) underneath the guide band (12) in the case of a projectile nose (1) with a guide band (12), and is guided at the side by at least one hole (18) which extends as far as the guide band (12).
5. Projectile nose according to Claim 4, characterized in that the stop (13) which is in the form of a pin has a head part (17) which is arranged within a widened hole (18) which is directly adjacent to the guide band (12).
6. Projectile nose according to Claim 5, characterized in that the stop (13) which is in the form of a pin engages on its side opposite the head part (17) in a blind hole (20) in the projectile nose wall (19).

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