EP2108916B1 - Large-gauge rear-loaded ammunition - Google Patents

Large-gauge rear-loaded ammunition Download PDF

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Publication number
EP2108916B1
EP2108916B1 EP09290227A EP09290227A EP2108916B1 EP 2108916 B1 EP2108916 B1 EP 2108916B1 EP 09290227 A EP09290227 A EP 09290227A EP 09290227 A EP09290227 A EP 09290227A EP 2108916 B1 EP2108916 B1 EP 2108916B1
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EP
European Patent Office
Prior art keywords
dome
skirt
base
large calibre
ammunition according
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EP09290227A
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German (de)
French (fr)
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EP2108916A1 (en
Inventor
Nicolas Caillaut
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nexter Munitions SA
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Nexter Munitions SA
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Publication date
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Publication of EP2108916A1 publication Critical patent/EP2108916A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/181—Caseless ammunition; Cartridges having combustible cases consisting of a combustible casing wall and a metal base; Connectors therefor

Definitions

  • the technical sector of the present invention is that of large caliber ammunition for tank gun and having a fuel sleeve or skirt which is charged with propellant powder from the rear of the bushing.
  • Munitions with a combustible skirt are well known.
  • the skirt or fuel case carries at one end a projectile and is closed at its other end by a metal base.
  • the patent FR-A-2799831 describes an ammunition of this type in which the combustible skirt is attached to a dome by rivets, the dome being capped by the cap. Fixing means are provided between the dome and the base.
  • a major disadvantage of this munition lies in the complex organization of the assembly requiring many manipulations.
  • Another disadvantage lies in the risk of separation of the connecting rivets between the skirt and the dome.
  • the object of the present invention is to provide a rear loadable ammunition comprising means for fixing the base in a simple manner offering great strength when the ammunition is subjected to tensile and torsional forces.
  • the invention therefore relates to a large caliber ammunition consisting of a projectile attached to a fuel skirt closed by a base, a connecting dome being provided between the skirt and the base, the connecting dome having a first cooperating side wall with the skirt and a second side wall extending the first and cooperating with the base, said dome comprising means ensuring its connection with the skirt, characterized in that the connecting means can be folded by the cap on the side wall of the skirt combustible.
  • the connecting means are fixed at the junction of the first and second side walls.
  • the connecting means are constituted by flexible tongues.
  • the flexible tabs are provided with grooves for locking the dome on the skirt.
  • the tabs are integrated in the dome.
  • the tabs are attached to the dome by a fixing means.
  • the dome comprises a central ring secured to the side wall by arms, said ring having a receiving bore of an igniter.
  • the arms are in the form of convex curvature arcs provided with means for centering the base.
  • the centering means are constituted by bosses intended to cooperate with complementary notches of the base.
  • the igniter is maintained in the bore on one side by a lugs / notches system and on the other by an elastic ring.
  • the igniter is connected to the base using a nut.
  • a first advantage of the munition according to the invention lies in the simplification of manufacture which requires only simple manipulations and requiring no qualification.
  • Another advantage lies in the resistance obtained from the skirt / dome / base connection.
  • Another advantage lies in the fact that the assembly does not require any assembly rivet.
  • a large caliber ammunition for a tank gun includes a projectile (not shown in the figures), which is integral with a fuel skirt containing a propellant charge.
  • a cap closes the fuel skirt at its back and allows firing from the barrel.
  • This type of ammunition is intended to be fired by a tank gun.
  • different devices have been devised, and the invention relates to the use of an intermediate dome between the skirt and the metal base of the munition.
  • FIG. 1 That's why on the figure 1 , there is shown a section of the rear part of a munition 1 having a fuel skirt 2, a dome 3 and a base 4.
  • the skirt 2 is combustible and conventionally made of cardboard impregnated with nitrocellulose.
  • the dome 3 is a plastic part and the base 4 is a massive metal piece.
  • the skirt 2 is provided with two successive taper 5 and 6 whose role will be explained below.
  • the dome 3 carries an igniter 7 held by an elastic ring 8 which engages in a groove of this dome.
  • the dome comprises connecting means 10 cooperating with the skirt and the base.
  • the base 4 is provided with a lip 9 (for example of rubber) which is intended to seal during the initiation of loading at the start of the gun.
  • the dome 3 comprises a first side wall 11 intended to cooperate with the skirt 2 and a second side wall 12 extending the first and intended to cooperate with the base 4.
  • the side wall 12 has an outside diameter slightly greater than that of the wall 11 so as to form a stop means of the skirt 2.
  • the dome comprises the connecting means 10 and in the figure we see that they are fixed at the junction of the first 11 and second 12 side walls.
  • the connecting means 10 are either integrated into the dome during the manufacture thereof or reported in any manner for example by gluing. They are in the form of flexible tongues 10a and 10b. In an advantageous embodiment, it is possible to provide four pairs of tongues regularly distributed around the outer wall of the dome.
  • the dome 3 comprises a central ring 13 secured to the side wall 11, 12 by arms 14.
  • the ring 13 has a bore 15 for receiving the igniter 7.
  • the arms 14 are in the form of arches of curvature convex each provided with centering means of the base 4. These centering means are constituted by bosses 18 intended to cooperate with complementary notches 19 carried by the base 4 (and visible on the figure 3 ).
  • the free space 16 between each arm 14 allows the introduction of the powder of the load. It is also seen that the igniter 7 is provided with notches 17 intended to cooperate with the dome 3 during its fixing.
  • the exploded view shows the initial disposition of the igniter 7 of the dome 3 and the elastic ring 8.
  • the assembled view shows the attachment of the igniter 7 in the hole 15 of the dome being fixed by the elastic ring 8 15, the igniter 7 is fixed rigidly to the dome 3. It can be seen that the igniter 7 has, after fixing, a threaded portion which projects from the dome.
  • the dome 3 is represented vertically 4. This view makes it possible to see, on the one hand, part of the connecting means of the dome 3 and of the base 4 and, on the other hand, a part of the connection means with the igniter.
  • the base 4 is provided with notches 19 in which the bosses 18 (visible on the figure 2 ) come to engage. The introduction of these bosses into the notches 19 makes it possible to rotate the base 4 and the dome 3 in rotation.
  • the dome 3 is provided at the level of the central ring 13 with lugs 20 on which the notches 17 of the igniter 7 engage, thus ensuring immobilization in rotation of this lighter with respect to the dome 3 .
  • FIG 4 there is shown a section showing an intermediate phase of mounting the three elements.
  • the dome 3, assembled with the igniter as shown on the figure 2 is introduced into the skirt 2.
  • the skirt 2 is positioned at the wall 11 and therefore abuts against the edge of the wall 12.
  • the base 4 then caps the dome 3 causing the application of the tabs 10a 10b against the shrinkage 6 of the skirt.
  • the striations 21 of the tongues ensure the maintenance of the dome 3 on the skirt 2. It is arranged that, once folded, the tabs 10 are not in excess relative to the profile of the narrowing 5 of the skirt.
  • this structure makes it possible to improve the chargeability of the skirt and to simplify the integration of the ammunition during the embedding.

Abstract

The ammunition (1) has a projectile attached to a combustible skirt (2) closed by a cap (4), and a connection dome (3) provided between the skirt and the cap. The dome includes a sidewall cooperating with the skirt and another side wall extending from the former sidewall and cooperating with the cap. The dome includes connection units e.g. tabs (10), assuring connection with the skirt when the units are folded by the cap on one of the side walls of the skirt.

Description

Le secteur technique de la présente invention est celui des munitions de gros calibre pour canon de char et comportant une douille ou jupe combustible qui est chargée en poudre propulsive par l'arrière de la douille.The technical sector of the present invention is that of large caliber ammunition for tank gun and having a fuel sleeve or skirt which is charged with propellant powder from the rear of the bushing.

Les munitions comportant une jupe combustible sont bien connues. La jupe ou étui combustible porte à une extrémité avant un projectile et elle est fermée à son autre extrémité par un culot métallique.Munitions with a combustible skirt are well known. The skirt or fuel case carries at one end a projectile and is closed at its other end by a metal base.

Ainsi, le brevet FR-A-2799831 décrit une munition de ce type selon laquelle la jupe combustible est fixée à un dôme par des rivets, le dôme étant coiffé par le culot. Des moyens de fixation sont prévus entre le dôme et le culot. Un inconvénient important de cette munition réside dans l'organisation complexe de l'assemblage nécessitant de nombreuses manipulations. Un autre inconvénient réside dans le risque de désolidarisation des rivets de liaison entre la jupe et le dôme.Thus, the patent FR-A-2799831 describes an ammunition of this type in which the combustible skirt is attached to a dome by rivets, the dome being capped by the cap. Fixing means are provided between the dome and the base. A major disadvantage of this munition lies in the complex organization of the assembly requiring many manipulations. Another disadvantage lies in the risk of separation of the connecting rivets between the skirt and the dome.

Le but de la présente invention est de fournir une munition chargeable par l'arrière comportant des moyens permettant la fixation du culot de manière simple offrant une grande résistance lorsque cette munition est soumise à des efforts en traction et en torsion.The object of the present invention is to provide a rear loadable ammunition comprising means for fixing the base in a simple manner offering great strength when the ammunition is subjected to tensile and torsional forces.

L'invention a donc pour objet une munition de gros calibre constituée d'un projectile fixé à une jupe combustible fermée par un culot, un dôme de liaison étant prévu entre la jupe et le culot, le dôme de liaison comportant une première paroi latérale coopérant avec la jupe et une seconde paroi latérale prolongeant la première et coopérant avec le culot, ledit dôme comprenant des moyens assurant sa liaison avec la jupe, caractérisée en ce que les moyens de liaison peuvent être rabattus par le culot sur la paroi latérale de la jupe combustible.The invention therefore relates to a large caliber ammunition consisting of a projectile attached to a fuel skirt closed by a base, a connecting dome being provided between the skirt and the base, the connecting dome having a first cooperating side wall with the skirt and a second side wall extending the first and cooperating with the base, said dome comprising means ensuring its connection with the skirt, characterized in that the connecting means can be folded by the cap on the side wall of the skirt combustible.

Selon une caractéristique de l'invention, les moyens de liaison sont fixés au niveau de la jonction des première et seconde parois latérales.According to a characteristic of the invention, the connecting means are fixed at the junction of the first and second side walls.

Avantageusement, les moyens de liaison sont constitués par des languettes flexibles.Advantageously, the connecting means are constituted by flexible tongues.

Selon une autre caractéristique de l'invention, les languettes flexibles sont munies de stries permettant le blocage du dôme sur la jupe.According to another characteristic of the invention, the flexible tabs are provided with grooves for locking the dome on the skirt.

Avantageusement, les languettes sont intégrées au dôme. Selon une variante de réalisation, les languettes sont rapportées sur le dôme par un moyen de fixation.Advantageously, the tabs are integrated in the dome. According to an alternative embodiment, the tabs are attached to the dome by a fixing means.

Selon une autre caractéristique de l'invention le dôme comporte un anneau central solidaire de la paroi latérale par des bras, ledit anneau présentant un perçage de réception d'un allumeur.According to another characteristic of the invention the dome comprises a central ring secured to the side wall by arms, said ring having a receiving bore of an igniter.

Selon une autre caractéristique de l'invention, les bras se présentent sous la forme d'arcs de courbure convexe munis de moyens de centrage du culot.According to another characteristic of the invention, the arms are in the form of convex curvature arcs provided with means for centering the base.

Selon une autre caractéristique de l'invention, les moyens de centrage sont constitués par des bossages destinés à coopérer avec des encoches complémentaires du culot.According to another characteristic of the invention, the centering means are constituted by bosses intended to cooperate with complementary notches of the base.

Selon une autre caractéristique de l'invention, l'allumeur est maintenu dans le perçage d'un côté par un système ergots/entailles et de l'autre par un anneau élastique.According to another characteristic of the invention, the igniter is maintained in the bore on one side by a lugs / notches system and on the other by an elastic ring.

Avantageusement, l'allumeur est relié au culot à l'aide d'un écrou.Advantageously, the igniter is connected to the base using a nut.

Un tout premier avantage de la munition selon l'invention réside dans la simplification de la fabrication qui ne nécessite que des manipulations simples et ne nécessitant aucune qualification.A first advantage of the munition according to the invention lies in the simplification of manufacture which requires only simple manipulations and requiring no qualification.

Un autre avantage réside dans la résistance obtenue de la liaison jupe/dôme/culot.Another advantage lies in the resistance obtained from the skirt / dome / base connection.

Un autre avantage réside dans le fait que le montage ne nécessite aucun rivet d'assemblage.Another advantage lies in the fact that the assembly does not require any assembly rivet.

D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement de la description donnée ci-après à titre indicatif en relation avec des dessins dans lesquels :

  • la figure 1 représente une coupe de l'extrémité arrière d'une munition,
  • la figure 2 représente les deux phases de montage de l'allumeur sur le dôme,
  • la figure 3 représente une vue montrant le positionnement du dôme par rapport au culot,
  • les figures 4 et 5 sont des coupes de la partie arrière d'une munition montrant le positionnement intermédiaire et le positionnement final des éléments de la munition,
  • les figures 6 et 7 sont des vues illustrant la mise en place du dôme sur la jupe combustible, et
  • la figure 8 est une vue illustrant le positionnement du culot sur le dôme.
Other characteristics, details and advantages of the invention will emerge more clearly from the description given below as an indication in relation to drawings in which:
  • the figure 1 represents a section of the rear end of a munition,
  • the figure 2 represents the two phases of mounting the igniter on the dome,
  • the figure 3 represents a view showing the positioning of the dome with respect to the base,
  • the Figures 4 and 5 are sections of the rear part of an ammunition showing the intermediate positioning and the final positioning of the ammunition elements,
  • the Figures 6 and 7 are views illustrating the placement of the dome on the combustible skirt, and
  • the figure 8 is a view illustrating the positioning of the base on the dome.

Comme il ressort de ce qui précède, une munition de gros calibre pour canon de char comprend un projectile (non représenté sur les figures), qui est solidaire d'une jupe combustible renfermant un chargement propulsif. Un culot ferme la jupe combustible à sa partie arrière et permet le tir à partir du canon. Ce type de munition est destiné à être tirée par un canon de char. Pour introduire le chargement dans la jupe combustible, on a imaginé différents dispositifs, et l'invention concerne l'utilisation d'un dôme intermédiaire entre la jupe et le culot métallique de la munition.As is apparent from the above, a large caliber ammunition for a tank gun includes a projectile (not shown in the figures), which is integral with a fuel skirt containing a propellant charge. A cap closes the fuel skirt at its back and allows firing from the barrel. This type of ammunition is intended to be fired by a tank gun. To introduce the loading into the combustible skirt, different devices have been devised, and the invention relates to the use of an intermediate dome between the skirt and the metal base of the munition.

Dans la suite de la description, on s'attachera à la solidarisation entre la jupe combustible, le dôme et le culot, les autres éléments et les procédés de fabrication de la munition étant connus de l'homme du métier.In the following description, we will focus on the connection between the fuel skirt, the dome and the base, the other elements and manufacturing processes of the munition being known to those skilled in the art.

C'est pourquoi sur la figure 1, on a représenté une coupe de la partie arrière d'une munition 1 comportant une jupe combustible 2, un dôme 3 et un culot 4. La jupe 2 est combustible et constituée classiquement en carton imprégné de nitrocellulose. Le dôme 3 est une pièce en matière plastique et le culot 4 est une pièce métallique massive.That's why on the figure 1 , there is shown a section of the rear part of a munition 1 having a fuel skirt 2, a dome 3 and a base 4. The skirt 2 is combustible and conventionally made of cardboard impregnated with nitrocellulose. The dome 3 is a plastic part and the base 4 is a massive metal piece.

La jupe 2 est munie de deux rétreints successifs 5 et 6 dont le rôle sera expliqué ci-après. Le dôme 3 porte un allumeur 7 maintenu par un anneau élastique 8 qui vient s'engager dans une rainure de ce dôme. Le dôme comprend des moyens de liaison 10 coopérant avec la jupe et le culot. Le culot 4 est muni d'une lèvre 9 (par exemple en caoutchouc) qui est destinée à assurer l'étanchéité lors de l'initiation du chargement au départ du coup de canon.The skirt 2 is provided with two successive taper 5 and 6 whose role will be explained below. The dome 3 carries an igniter 7 held by an elastic ring 8 which engages in a groove of this dome. The dome comprises connecting means 10 cooperating with the skirt and the base. The base 4 is provided with a lip 9 (for example of rubber) which is intended to seal during the initiation of loading at the start of the gun.

Sur la figure 2, on a représenté une vue éclatée du dôme 3 et une vue assemblée. Le dôme 3 comporte une première paroi latérale 11 destinée à coopérer avec la jupe 2 et une seconde paroi latérale 12 prolongeant la première et destinée à coopérer avec le culot 4. La paroi latérale 12 présente un diamètre extérieur légèrement supérieur à celui de la paroi 11 de façon à constituer un moyen de butée de la jupe 2. Le dôme comprend les moyens de liaison 10 et sur la figure on voit que ceux-ci sont fixés au niveau de la jonction des première 11 et seconde 12 parois latérales.On the figure 2 there is shown an exploded view of the dome 3 and an assembled view. The dome 3 comprises a first side wall 11 intended to cooperate with the skirt 2 and a second side wall 12 extending the first and intended to cooperate with the base 4. The side wall 12 has an outside diameter slightly greater than that of the wall 11 so as to form a stop means of the skirt 2. The dome comprises the connecting means 10 and in the figure we see that they are fixed at the junction of the first 11 and second 12 side walls.

Les moyens de liaison 10 sont soit intégrés au dôme lors de la fabrication de celui-ci soit rapportés de manière quelconque par exemple par collage. Ils se présentent sous la forme de languettes flexibles 10a et 10b. Dans une réalisation avantageuse, on peut prévoir quatre paires de languettes réparties régulièrement autour de la paroi extérieure du dôme.The connecting means 10 are either integrated into the dome during the manufacture thereof or reported in any manner for example by gluing. They are in the form of flexible tongues 10a and 10b. In an advantageous embodiment, it is possible to provide four pairs of tongues regularly distributed around the outer wall of the dome.

Le dôme 3 comporte un anneau central 13 solidaire de la paroi latérale 11, 12 par des bras 14. L'anneau 13 présente un perçage 15 de réception de l'allumeur 7. Les bras 14 se présentent sous la forme d'arcs de courbure convexe munis chacun de moyens de centrage du culot 4. Ces moyens de centrage sont constitués par des bossages 18 destinés à coopérer avec des encoches complémentaires 19 portées par le culot 4 (et visibles sur la figure 3). L'espace libre 16 entre chaque bras 14 permet l'introduction de la poudre du chargement. On voit encore que l'allumeur 7 est muni d'entailles 17 destinées à coopérer avec le dôme 3 lors de sa fixation.The dome 3 comprises a central ring 13 secured to the side wall 11, 12 by arms 14. The ring 13 has a bore 15 for receiving the igniter 7. The arms 14 are in the form of arches of curvature convex each provided with centering means of the base 4. These centering means are constituted by bosses 18 intended to cooperate with complementary notches 19 carried by the base 4 (and visible on the figure 3 ). The free space 16 between each arm 14 allows the introduction of the powder of the load. It is also seen that the igniter 7 is provided with notches 17 intended to cooperate with the dome 3 during its fixing.

La vue éclatée montre la disposition initiale de l'allumeur 7 du dôme 3 et de l'anneau élastique 8. La vue assemblée montre la fixation de l'allumeur 7 dans le perçage 15 du dôme en étant fixé par l'anneau élastique 8 en appui sur un épaulement du perçage 15. Ainsi, l'allumeur 7 est fixé rigidement au dôme 3. On voit que l'allumeur 7 présente après fixation une partie filetée qui est en saillie par rapport au dôme.The exploded view shows the initial disposition of the igniter 7 of the dome 3 and the elastic ring 8. The assembled view shows the attachment of the igniter 7 in the hole 15 of the dome being fixed by the elastic ring 8 15, the igniter 7 is fixed rigidly to the dome 3. It can be seen that the igniter 7 has, after fixing, a threaded portion which projects from the dome.

Sur la figure 3, on a représenté le dôme 3 à la verticale du culot 4. Cette vue permet de voir d'une part une partie des moyens de liaison du dôme 3 et du culot 4 et d'autre part une partie des moyens de liaison avec l'allumeur. Le culot 4 est muni d'encoches 19 dans lesquelles les bossages 18 (visibles sur la figure 2) viennent s'engager. L'introduction de ces bossages dans les encoches 19 permet de solidariser en rotation le culot 4 et le dôme 3. Sur la figure 3, on voit encore que le dôme 3 est muni au niveau de l'anneau central 13 d'ergots 20 sur lesquels viennent s'engager les entailles 17 de l'allumeur 7 assurant ainsi une immobilisation en rotation de cet allumeur par rapport au dôme 3.On the figure 3 , the dome 3 is represented vertically 4. This view makes it possible to see, on the one hand, part of the connecting means of the dome 3 and of the base 4 and, on the other hand, a part of the connection means with the igniter. The base 4 is provided with notches 19 in which the bosses 18 (visible on the figure 2 ) come to engage. The introduction of these bosses into the notches 19 makes it possible to rotate the base 4 and the dome 3 in rotation. figure 3 it can also be seen that the dome 3 is provided at the level of the central ring 13 with lugs 20 on which the notches 17 of the igniter 7 engage, thus ensuring immobilization in rotation of this lighter with respect to the dome 3 .

Sur la figure 3, on voit encore que les languettes 10 sont munies de stries 21 destinées à venir s'accrocher sur la jupe 2 lors du montage.On the figure 3 , we still see that the tabs 10 are provided with ridges 21 intended to catch on the skirt 2 during assembly.

Sur la figure 4, on a représenté une coupe montrant une phase intermédiaire de montage des trois éléments. Le dôme 3, assemblé avec l'allumeur comme montré sur la figure 2, est introduit dans la jupe 2. La jupe 2 se positionne au niveau de la paroi 11 et vient donc en butée contre le bord de la paroi 12. Le culot 4 vient alors coiffer le dôme 3 en provoquant l'application des languettes 10a 10b contre le rétreint 6 de la jupe. Les stries 21 des languettes assurent le maintien du dôme 3 sur la jupe 2. On s'arrange pour que, une fois rabattues, les languettes 10 ne soient pas en surépaisseur par rapport au profil du rétreint 5 de la jupe.On the figure 4 , there is shown a section showing an intermediate phase of mounting the three elements. The dome 3, assembled with the igniter as shown on the figure 2 is introduced into the skirt 2. The skirt 2 is positioned at the wall 11 and therefore abuts against the edge of the wall 12. The base 4 then caps the dome 3 causing the application of the tabs 10a 10b against the shrinkage 6 of the skirt. The striations 21 of the tongues ensure the maintenance of the dome 3 on the skirt 2. It is arranged that, once folded, the tabs 10 are not in excess relative to the profile of the narrowing 5 of the skirt.

Sur la figure 5, on a représenté la position finale des trois éléments où on voit que le culot 4 est en appui de manière intime avec le dôme 3. On voit que la solidarisation du culot 4 et du dôme 3 par l'intermédiaire de l'allumeur 7 et de l'écrou 22 assure aussi le pincement de la jupe 2 entre le dôme 3 et les languettes 10. On assure donc ainsi la solidarisation du dôme 3 et de la jupe 4, donc la solidarisation effective de la jupe du dôme et du culot.On the figure 5 the final position of the three elements is shown, in which it is seen that the base 4 bears closely with the dome 3. It can be seen that the base 4 and the dome 3 are connected via the igniter 7 and the nut 22 also clamps the skirt 2 between the dome 3 and the tongues 10. This ensures the fastening of the dome 3 and the skirt 4, thus effectively securing the skirt of the dome and the base.

On voit que cette structure permet d'améliorer la chargeabilité de la jupe et de simplifier l'intégration des munitions lors de l'encartouchage.It can be seen that this structure makes it possible to improve the chargeability of the skirt and to simplify the integration of the ammunition during the embedding.

Afin d'illustrer la réalisation de la munition, on se reporte aux figures 6 à 8. Après avoir mis en place l'allumeur 7 dans le dôme comme cela a été expliqué en relation avec la figure 2, on présente le dôme 3 au-dessus de la jupe 2 comme cela est montré sur la figure 6. On insère le dôme 3 en engageant la paroi 11 dans la jupe jusqu'en butée avec la paroi 12 comme cela est montré sur la figure 7. On peut alors introduire la poudre du chargement propulsif par un des espaces libres 16 se trouvant à l'arrière du dôme de chargement. A la fin de ce chargement, on met en place le culot 4 comme cela est visible sur la figure 8 jusqu'à l'appui sur les languettes 10. On s'arrange bien entendu pour que les rainures 19 soient positionnées en regard des bossages 18. On exerce alors un effort supplémentaire sur le culot 4 afin de plier grâce au culot les languettes striées 10 en les rabattant contre la surface externe de la jupe 2. On enfonce le culot 4 jusqu'à faire apparaître la partie filetée de l'allumeur 7 en saillie par rapport au culot. On visse alors l'écrou 22 (visible sur la figure 5) pour bloquer l'ensemble sur la jupe.In order to illustrate the realization of the ammunition, we refer to Figures 6 to 8 . After setting up the lighter 7 in the dome as has been explained in connection with the figure 2 , we present the dome 3 above the skirt 2 as shown on the figure 6 . The dome 3 is inserted by engaging the wall 11 in the skirt as far as the stop with the wall 12 as shown in FIG. figure 7 . It is then possible to introduce the powder of the propellant charge by one of the free spaces 16 located at the rear of the loading dome. At the end of this loading, we put in place the base 4 as is visible on the figure 8 until the support on the tabs 10. It is of course arranged so that the grooves 19 are positioned opposite the bosses 18. It then exerts an extra effort on the base 4 to bend thanks to the base the striated tongues 10 by folding them against the outer surface of the skirt 2. It sinks the base 4 until the threaded portion of the igniter 7 protrudes from the base. Then screw the nut 22 (visible on the figure 5 ) to lock the assembly on the skirt.

Par le serrage de l'écrou on assure à la fois la liaison du culot 4 et du dôme 3 ainsi que la liaison de la jupe 2 et du dôme 3.By tightening the nut, both the connection of the base 4 and the dome 3 and the connection of the skirt 2 and the dome 3 are ensured.

Claims (11)

  1. Large calibre ammunition constituted by a projectile attached to a combustible skirt (2) and closed by a base (4), a linking dome (3) being provided between the skirt and the base, the linking dome (3) incorporating a first lateral wall (11) cooperating with the skirt and a second lateral wall (12) extending the first one and cooperating with the base (4), and said dome comprising means (10) to ensure its joining with the skirt (2), characterised in that the joining means (10) may be able to be bent back by the base (4) onto the lateral wall of the combustible skirt.
  2. Large calibre ammunition according to Claim 1, characterised in that the linking means (10) are integral with the dome (3) and fastened at the junction between the first (11) and second (12) lateral walls.
  3. Large calibre ammunition according to Claims 1 or 2, characterised in that the linking means (10) are constituted by flexible tabs (10a, 10b).
  4. Large calibre ammunition according to Claim 3, characterised in that the flexible tabs (10a, 10b) are provided with ridges (21) enabling the dome (3) to be immobilised on the skirt (2).
  5. Large calibre ammunition according to Claims 3 or 4, characterised in that the tabs (10a, 10b) are part of the dome (3).
  6. Large calibre ammunition according to Claims 3 or 4, characterised in that the tabs (10a, 10b) are attached to the dome (3) by attachment means.
  7. Large calibre ammunition according to any one of the previous Claims, characterised in that the dome (3) incorporates a central ring (13) integral with the lateral walls (11, 12) by arms, said ring (13) having a drill hole (15) to accommodate an igniter (7).
  8. Large calibre ammunition according to Claim 7, characterised in that the arms (14) are in the shape of convex-curved arcs fitted with means (18) to centre the base.
  9. Large calibre ammunition according to Claim 8, characterised in that the centring means (18) are constituted by bosses (18) intended to cooperate with matching notches (19) in the base (4)
  10. Large calibre ammunition according to Claim 7, characterised in that the igniter is held in the drill hole (15) on one side by a system of snugs/notches and on the other by an elastic ring (8).
  11. Large calibre ammunition according to Claim 10, characterised in that the igniter (7) is linked to the base (4) by a nut (22).
EP09290227A 2008-04-09 2009-03-30 Large-gauge rear-loaded ammunition Active EP2108916B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0801943A FR2930026B1 (en) 2008-04-09 2008-04-09 MUNITION OF BIG SIZE CHARGED BY THE BACK

Publications (2)

Publication Number Publication Date
EP2108916A1 EP2108916A1 (en) 2009-10-14
EP2108916B1 true EP2108916B1 (en) 2011-08-17

Family

ID=40225452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290227A Active EP2108916B1 (en) 2008-04-09 2009-03-30 Large-gauge rear-loaded ammunition

Country Status (6)

Country Link
US (1) US8015923B2 (en)
EP (1) EP2108916B1 (en)
AT (1) ATE520953T1 (en)
ES (1) ES2371812T3 (en)
FR (1) FR2930026B1 (en)
IL (1) IL198019A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930026B1 (en) * 2008-04-09 2010-05-07 Nexter Munitions MUNITION OF BIG SIZE CHARGED BY THE BACK
US9625242B1 (en) * 2015-02-12 2017-04-18 The United States Of America As Represented By The Secretary Of The Army Igniter for modular artillery charge system
FR3092660B1 (en) 2019-02-13 2022-04-01 Nexter Munitions ROCKET FOR A PROJECTILE INTENDED TO BE FIRED BY A CANNON

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US498856A (en) * 1893-06-06 Cartridge-shell
US189069A (en) * 1877-04-03 Improvement in cartridges
US546936A (en) * 1892-04-16 1895-09-24 James Pinfold Cartridge case
US1002038A (en) * 1911-01-03 1911-08-29 Western Cartridge Co Cartridge.
US3590740A (en) * 1968-11-12 1971-07-06 Herter Inc S Plastic shot shell and base wad
NL156011B (en) * 1970-08-31 1978-02-15 Philips Nv ELECTRIC CABLE WITH TERMINAL CONTACT.
US3732821A (en) * 1971-05-25 1973-05-15 Us Army Nose ogive for nonlethal projectile
DE2705278C2 (en) * 1977-02-09 1984-02-23 Rheinmetall GmbH, 4000 Düsseldorf Stubby sleeve with eyelid
US4187271A (en) * 1977-04-18 1980-02-05 Owens-Corning Fiberglas Corporation Method of making same
CA1332321C (en) * 1988-02-10 1994-10-11 Wilford E. Martwick Cased telescoped ammunition having features augmenting cartridge case dimensional recovery by case skin tube
DE8812000U1 (en) * 1988-09-22 1990-02-08 Rheinmetall Gmbh, 4000 Duesseldorf, De
US5069137A (en) * 1990-05-17 1991-12-03 Honeywell Inc. Cased telescoped ammunition round
DE29607840U1 (en) * 1996-03-14 1996-09-05 Comet Pyrotech Missile simulation means
US5747723A (en) * 1996-11-26 1998-05-05 The United States Of America As Represented By The Secretary Of The Army Modular artillery charge system
US5834681A (en) * 1997-06-20 1998-11-10 Defense Technology Corporation Of America Reloadable high-low pressure ammunition cartridge
FR2799831B1 (en) * 1999-10-13 2001-11-30 Giat Ind Sa DEVICE FOR FIXING A SHUTTERING BASE ON AN AMMUNITION CASE AND BASE SUITABLE FOR SUCH A DEVICE
US6343552B1 (en) * 2000-06-06 2002-02-05 Alliant Techsystems Inc. Solvent application system
US7165496B2 (en) * 2003-11-06 2007-01-23 Reynolds S Paul Piston head cartridge for a firearm
FR2869101B1 (en) * 2004-04-15 2006-06-02 Giat Ind Sa MUNITION WITHOUT SLEEVE AND METHOD FOR MOUNTING SUCH AMMUNITION
FR2930026B1 (en) * 2008-04-09 2010-05-07 Nexter Munitions MUNITION OF BIG SIZE CHARGED BY THE BACK

Also Published As

Publication number Publication date
FR2930026A1 (en) 2009-10-16
ATE520953T1 (en) 2011-09-15
US8015923B2 (en) 2011-09-13
IL198019A0 (en) 2009-12-24
FR2930026B1 (en) 2010-05-07
US20100071578A1 (en) 2010-03-25
EP2108916A1 (en) 2009-10-14
IL198019A (en) 2013-01-31
ES2371812T3 (en) 2012-01-10

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