EP0945702B1 - Packaging for big calibre cartridge - Google Patents

Abstract

The packing container (1) comprises a support tube (8) that is closed at the front, and can be closed at the rear by a cover (7). A form part (9) is fixed in the front area of the support tube, which has a central recess (11) to support the front of the cartridge (2). The recess is matched to the point part (10) of the bullet (5). An inner insert casing (12) is connected to the rear of the form part and extends to the rear of the support tube. A bracing ring (13) with radially sprung claws is fixed on its side facing the form part. The inner insert casing can slide longitudinally in the support tube between two positions. In a first position, in which the rear of the container is closed, the claws press against the outer wall of the front part (6) of the bullet, so that it frictionally abuts the claws. In a second position, the inner insert casing is slid to the rear end of the packing container, and the claws are pressed to the wall of the support tube by a guide par, to remove the frictional connection between the claws and the bullet front part.

Description

The invention relates to a packaging container for a large-caliber cartridge with a cartridge case and one Projectile, the front part of the projectile from the cartridge case protrudes.

DE 195 14 988 A1 describes a packaging container for large-caliber cartridges with a propellant sleeve and one known sub-caliber floor. Because with large-caliber cartridges, in particular with a combustible propellant charge case Projectile is usually much heavier than the drive part, the projectile must be inside the support tube corresponding form-fitting plastic or Fiber elements are supported so that the propellant charge sleeve if the packaging container falls towards the Sleeve bottom is not damaged.

In contrast, large-caliber full-caliber bullets point to Sub-caliber bullets usually have a smooth surface on, so that with appropriate packaging containers secure fixation of the bullet within the packaging container only by form-fitting support elements not achievable with reasonable effort is.

The present invention has for its object a Specify packaging container in which the floor of the respective Cartridge inside the packaging container - especially with regard to a possible displacement of the floor even then safely towards the rear end of the container is supported if it is a full-caliber bullet with smooth surface.

This object is solved by the features of claim 1. Disclose further advantageous refinements of the invention the subclaims.

Basically, the invention is based on the idea of the support tube on the rear of the packaging container or to arrange the inner socket supporting the sleeve bottom, which are connected at their front end with an expansion ring which has radially arranged resilient claws. With a cartridge in the packaging container press these claws against the outer wall of the front part of the projectile and form a frictional connection between the Inner socket and the projectile.

To ensure a secure frictional connection, it has proved to be advantageous, the claws of the expansion ring on their surfaces facing the floor with an additional one the friction increasing material layer, e.g. Rubber, too Mistake.

In a preferred embodiment of the invention, the area of the respective floor facing the floor Form claw curved so that a shift of the Bullet (relative to the inner socket) to the rear End of the packaging container towards an enlargement of the Friction zone between this surface and the outer surface of the Projectile leads.

In addition, to ensure that, on the one hand, removal of the Cartridge is possible in a simple way and on the other hand no removal of the cartridge from the packaging container loose parts fall out, it has continued to be beneficial proved the expansion ring with one on the support tube molded part fastened on the front, which is used to support the Cartridge against movements towards the top of the projectile is required, connectable. For this purpose, the molded part with a provided hook-shaped guide part, which in the hook-shaped ends of the claws intervenes. The respective hook-shaped end of the claws and / or the corresponding hook-shaped end of the guide part are wedge-shaped, such that in the event of a shift the inner socket and thus also the expansion ring for the claws towards the rear end of the packaging container through the guide part arranged on the molded part to the wall of the support tube.

To provide good shielding against electromagnetic radiation to achieve, the support tube is preferably around a metal pipe.

Fig.1

eine teilweise im Schnitt dargestellte Seitenansicht eines erfindungsgemäßen Verpackungsbehälters mit einer darin angeordneten Patrone;

Fig.2

einen vergrößerten Ausschnitt des in Fig.1 mit II bezeichneten Bereiches und

Fig.3

den in Fig.2 dargestellten Ausschnitt beim Herausziehen der Patrone aus dem Verpackungsbehälter.

Further details and advantages of the invention result from the following exemplary embodiments explained with reference to figures. Show it:

Fig.1

a partially sectioned side view of a packaging container according to the invention with a cartridge arranged therein;

Fig.2

an enlarged section of the area designated in Fig.1 with II and

Figure 3

the section shown in Figure 2 when pulling the cartridge out of the packaging container.

In Figure 1, 1 denotes a packaging container in which a cartridge 2 with propellant charge sleeve 3 and sleeve base 4 and a floor 5 is arranged, the floor front part 6 protrudes from the propellant charge sleeve 3.

The packaging container 1 includes a closed on the front and lockable at the rear by means of a cover 7 metallic support tube 8. In the front area of the support tube 8 is a molded part 9 attached to the front Support the cartridge 2 on the tip-side area 10 of the floor 5 adapted central recess 11 having.

At the rear of the molded part 9 there is an up to the rear region of the support tube 8 extending inner socket 12 made of cardboard or plastic on the on its side facing the molded part 9 with an expansion ring 13 radially resilient claws 14 is attached. With the expansion ring 13 is e.g. around one in the direction of the longitudinal axis 15 of the packaging container 1 provided with slits conical molded plastic ring.

The inner socket 12 and thus the expansion ring 13 are between a first and a second end position within of the support tube 8 is arranged to be longitudinally displaceable, such that the claws 14 in the first end position (Fig.2), in which the Packaging container 1 is closed at the rear against Outer wall 16 of the projectile front part 6 are pressed, so that the projectile front part 6 frictionally on the claws 14 supports. Thereby is to improve the frictional connection the floor 17 facing surfaces 17 an existing rubber Material layer 18 arranged. Besides, that is the Floor 5 facing surface 17 of the respective claw 14 curved trained such that a displacement of the projectile 5 to the rear end of the packaging container 1 an increase in the frictional zone between this surface 17 and the outer wall 16 of the front part 6 leads.

In the second to the rear end of the packaging container 1 shifted end position of the expansion ring 13 (Fig.3) the claws 14 arranged on the molded part 9 Guide part 20 pressed against the wall of the support tube 8, so that existing between the claws 14 and the floor 5 Frictional connection is canceled. For this are the guide part 20 and the respective end 21 of the claws 14 hook-shaped and wedge-shaped, such that in the event of a shift of the expansion ring 13 in its second end position Claws 14 are pressed against the wall of the support tube 8.

For inserting the cartridge 2 into the packaging container 1 after removal of the cover 7, the inner receptacle 12 first, e.g. by means of a for reasons of clarity Loop, not shown, as far as possible at the rear pulled out of the support tube 8 (see also Fig. 3). In this The cartridge 2 is then positioned as far into the container 1 pushed until the tip-side area 10 of the projectile 5 comes to rest on the molded part 9. Thereby the inner socket 12, which is supported on the base of the sleeve, to the front pressed so that the hook-shaped ends 21 of the claws 14th get out of engagement of the hook-shaped guide member 20 and due to their bias against the outer wall of the Projectile front part are pressed (Fig. 2).

If the cartridge 2 is removed from the packaging container 1 again are, the cover 7 is first removed. Subsequently then the cartridge 2 by pulling on the protruding part Sleeve bottom 4 together with the inner socket 12 the container 1 moved out until the hook-shaped guide part 20 engages in the hook-shaped ends 21 of the claws 14 and the claws release the projectile front part 6, so that the cartridge 2 without the inner sleeve 12th pulled out further and then the packaging container 1 can be removed.

To start pulling the cartridge out of the case base To be able to grip better, lateral recesses in the inner receptacle 12 provided, which is dashed in Fig.1 shown and provided with the reference numeral 22.

LIST OF REFERENCE NUMBERS

1

Packaging containers, containers

2

cartridge

3

Cartridge case

4

sleeve base

5

Bullet

6

Front part of the floor, front part of the floor

7

cover

8th

support tube

9

molding

10

tip-side area

11

Recess (molded part)

12

Inside receptacle

13

expanding ring

14

claw

15

longitudinal axis

16

Outer wall (front part of floor)

17

Surface (claw)

18

Material layer, rubber

20

guide part

21

End (claw), hook-shaped end

22

recess

Claims (9)

1. A packing container for a large-calibre cartridge (2) having a propellant charge case (3) and a projectile (5), wherein the front projectile part (6) projects out of the propellant charge case (3):

   a) the packing container (1) comprises a support tube (8) closed at the front and closable at the rear by means of a cover (7);

   b) in the front area of the support tube (8) there is attached a shaped element (9) which comprises a central recess (11) conformed to the tip area (10) of the projectile (5) for front support of the cartridge (2);
   characterised by the features:

   c) an inner receptacle (12) extending as far as the rear area of the support tube (8) adjoins the shaped element (9) to the rear and has attached to it, on the side facing the shaped element (9), an expanding ring (13) with radially resilient claws (14),

   d) the inner receptacle (12) is arranged so as to be longitudinally displaceable between a first and a second end position within the support tube (8), in such a way that,
   in the first end position, in which the packing container (1) is closed at the rear, the claws (14) are pressed against the outer wall (16) of the front part (6) of the projectile, such that the front part (6) of the projectile is supported in frictionally engaged manner against the claws (14), and,
   in the second end position of the inner receptacle (12), displaced towards the rear end of the packing container (1), the claws are forced towards the wall of the support tube (8) by means of a guide element (20), such that the frictional engagement between the claws (14) and the front part (6) of the projectile is removed.
2. A packing container according to claim 1, characterised in that the support tube (8) is a metal tube.
3. A packing container according to claim 1 or claim 2, characterised by the features:

   the guide element (20) for forcing apart the claws (14) of the expanding ring (13) is arranged on the shaped element (9) and hook-shaped,

   the respective end (21) of the claws (14) is likewise hook-shaped and engages in the corresponding hook-shaped end of the guide element (20) and

   the respective hook-shaped end (21) of the claws (14) and/or the corresponding hook-shaped end of the guide element (20) is wedge-shaped, in such a way that, when the inner receptacle (12) is displaced into the second end position, the claws (14) of the expanding ring (13) are forced towards the wall of the support tube (8).
4. A packing container according to one of claims 1 to 3, characterised in that the expanding ring (13) is a conically shaped plastics ring provided with slits in the direction of the longitudinal axis (15) of the packing container (1).
5. A packing container according to one of claims 1 to 4, characterised in that the claws (14) of the expanding ring (13) are provided on their faces (17) facing the front part (6) of the projectile with an additional friction-increasing material layer (18).
6. A packing container according to claim 5, characterised in that the additional material layer (18) consists of rubber.
7. A packing container according to one of claims 1 to 6, characterised in that the face (17), facing the projectile (5), of the respective claw (14) is of curved construction, in such a way that displacement of the projectile (5) relative to the inner receptacle (12) towards the rear end of the packing container (1) results in an enlargement of the zone of frictional engagement between this face (17) and the outer wall (16) of the front part (6) of the projectile.
8. A packing container according to one of claims 1 to 7, characterised in that the inner receptacle (12) is a paperboard or plastics tube.
9. A packing container according to one of claims 1 to 8, characterised in that the inner receptacle (12) is provided at the rear with recesses (22) for engaging behind the case base (4) of the cartridge (2).

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