EP1533590A1 - Explosive ammuniton with increased resistance against shocks - Google Patents

Explosive ammuniton with increased resistance against shocks Download PDF

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Publication number
EP1533590A1
EP1533590A1 EP04292486A EP04292486A EP1533590A1 EP 1533590 A1 EP1533590 A1 EP 1533590A1 EP 04292486 A EP04292486 A EP 04292486A EP 04292486 A EP04292486 A EP 04292486A EP 1533590 A1 EP1533590 A1 EP 1533590A1
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EP
European Patent Office
Prior art keywords
shell
ring
explosive
envelope
washer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04292486A
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German (de)
French (fr)
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EP1533590B1 (en
Inventor
Dominique Dion
Sylvain Jayet
Régis Aumasson
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
Original Assignee
Giat Industries SA
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Publication date
Application filed by Giat Industries SA filed Critical Giat Industries SA
Priority to PL04292486T priority Critical patent/PL1533590T3/en
Publication of EP1533590A1 publication Critical patent/EP1533590A1/en
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Publication of EP1533590B1 publication Critical patent/EP1533590B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/02—Fuze bodies; Fuze housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/08—Ordnance projectiles or missiles, e.g. shells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/24—Shock-absorbing arrangements in packages, e.g. for shock waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/04—Protective caps

Definitions

  • the technical field of the invention is that of shells explosives.
  • Explosive shells typically include a cargo cast explosive arranged in a metal casing.
  • the envelope has an opening for casting loading. This opening is also intended to receive a rocket allowing the initiation of loading.
  • the shells must be able to be used in important temperature ranges (between - 46 ° C and + 63 ° VS). These important variations induce dilations not negligible amount of explosive millimeters (2 to 5 mm). In addition, the shells are subject to severe mechanical environments (falls and vibrations).
  • Patent EP1338860 discloses a shell comprising a loading in composite explosive.
  • this shell includes a bag-shaped case made of a material elastic, holster that is interposed between the shell of the shell and loading.
  • a holding washer is applied to a surface of the explosive charge by the screwing a ring fixing the rocket.
  • the invention relates to an explosive shell comprising a mergeable explosive charge arranged in an envelope with an opening, shells comprising a means of wedging disposed in the vicinity of the opening of the shell, a wedging means comprising a ring made in one elastic material and which is interposed between a part before the shell of the shell and the explosive charge, ring which is compressed by compression means, shells characterized in that the wedging ring has a collar that fits into a throat of the envelope of the shell.
  • the means of compression comprises a connection piece screwed into the opening of the shell and which exerts a constraint of compression on the setting ring.
  • the compression means will advantageously comprise a washer interposed between the connecting piece and the timing ring.
  • the setting ring may have an axial bore cylindrical and an external profile matching the profile internal envelope.
  • the shell may include a priming tablet arranged in the cylindrical axial bore of the setting ring.
  • the setting ring will be made of a material elastomer.
  • an explosive shell 1 according to the invention comprises an explosive charge 2 mergeable and which is cast inside a metal shell 3.
  • the loading may contain trinitrotoluene wax and a complementary explosive such as Hexogen or Octogen. It may also include an explosive not very sensitive, such as oxynitrotriazole (ONTA).
  • ONTA oxynitrotriazole
  • the envelope 3 has a opening 4 which will have a tapping 5 for fixing subsequent firing rocket (not shown).
  • this shell comprises a means of blocking the explosive charge 2 which is disposed in the vicinity of the opening 4 of the shell.
  • This locking means comprises a ring 6 which is made in an elastic material and which is interposed between a front part 7 of the envelope 3 of the shell and the loading explosive 2.
  • This wedging ring is made of a material elastomer, chemically compatible with the explosive 2, and having a good resistance to aging. We will be able example to make the ring in a hardness silicone rubber 45 Shore.
  • Figure 2 shows the ring 6 alone. She presents a conical outer profile 6a which is intended to come to marry the internal profile 7 of the envelope 3. It also comprises a axial bore 6b cylindrical which allows the loading of the shell 1 by casting and after setting up the ring 6.
  • the wedging ring 6 finally has a collar cylindrical outer 6c which is intended to be housed in a 8 throat of the envelope 3 of the shell 1.
  • the flexibility of the material of the ring 6 allows its manual introduction, by elastic deformation, into the opening 4 of the shell 1 and before the casting of the load 2.
  • the flange 6c is introduced into the groove 8 and ensures the maintenance of the ring 6 relative to the shell 1 before the casting of the load 2.
  • the explosive charge is poured up to back to inside the axial bore 6b.
  • the ring 6 is interposed between the explosive 2 and the inner wall 7 of the envelope 3.
  • This washer 9 has an external diameter less than inner diameter of the opening 4 and has a flange 9a which is positioned in the axial bore 6b of the Ring.
  • the connecting piece 10 and the washer 9 constitute means for compressing the ring 6.
  • This means allows to exercise permanently and reversible a compressive stress on the ring of setting 6 throughout the entire temperature range of the shell (from -46 ° C to + 63 ° C).
  • the ring 6 transmits this explosive charge constraint 2 which is therefore also maintained.
  • This maintenance makes it possible to avoid the appearance of defects or cracks, especially during rough handling operations lowest temperatures.
  • the connecting piece 10 has an internal bore 11 which allows the fixation of a rocket (not shown).
  • the shell is here represented in its configuration of storage in which a transport ring 12 is screwed to the connecting piece 10 instead of the rocket.
  • the connecting piece 10 has a bottom 13 which isolates the explosive charge 2 from moisture. This background will be broken during the initiation of the rocket. he will have a circular initiation of rupture allowing the projection of part of the bottom on the explosive charge 2 to allow it to boot.
  • Figure 4 shows another embodiment of a shell according to the invention.
  • This mode differs from the previous one in that one tablet 14 is disposed in the cylindrical axial bore 6b of the timing ring 6.
  • This tablet is intended to come facilitate the priming of the explosive charge 2 from the rocket (not shown).
  • Such a tablet is conventional and its composition (which depends on the nature of the explosive charge) is not the subject of the present invention.
  • the priming tablet is glued to explosive charge.
  • the glue at the interface compressed / loaded causes poor transmission of the detonation. If the tablet is not stuck, there is a risk that elsewhere to move around when handling the shell and to deteriorate by crumbling.
  • the compression of the ring 6 by screwing the connecting piece 10 causes a radial expansion of the ring 6 which translates also by reducing the diameter of its bore 6b. More of the setting of the explosive charge 2, the ring 6 then ensures the firm maintenance of the priming tablet 14 in contact with the explosive charge 2.
  • This embodiment also makes it easier to demilitarization of shells at the end of their life. It is enough unscrew the connecting piece 10.
  • the timing ring 6 then releases the priming tablet 14 which can easily be removed.
  • the explosive charge 2 which has been implemented by casting is mergeable and it is then easily removed from the shell by heating.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Toys (AREA)

Abstract

The shell has a washer (9) placed on an upper side of an elastic ring (6). The outer diameter of the washer is lower than an inner diameter of an opening of an envelope. A connecting unit (10) pushes the washer to compress the ring. The washer allows friction of the unit (10). The washer and the unit (10) form a compression unit that exerts a compressive stress, on the ring, that is transmitted to a load for maintaining the load. The load slides inside the envelope. The ring is placed between a front part of the envelope and the load. The ring has a collar housed in a groove of the envelope.

Description

Le domaine technique de l'invention est celui des obus explosifs.The technical field of the invention is that of shells explosives.

Les obus explosifs comprennent généralement un chargement explosif coulé disposé dans une enveloppe métallique.Explosive shells typically include a cargo cast explosive arranged in a metal casing.

L'enveloppe comporte une ouverture permettant la coulée du chargement. Cette ouverture est destinée par ailleurs à recevoir une fusée permettant l'initiation du chargement.The envelope has an opening for casting loading. This opening is also intended to receive a rocket allowing the initiation of loading.

Les obus doivent pouvoir être mis en oeuvre dans des plages de températures importantes (entre - 46° C et + 63° C). Ces variations importantes induisent des dilatations non négligeables de l'explosif pouvant atteindre plusieurs millimètres (2 à 5 mm). Par ailleurs les obus sont soumis à des environnements mécaniques sévères (chutes et vibrations).The shells must be able to be used in important temperature ranges (between - 46 ° C and + 63 ° VS). These important variations induce dilations not negligible amount of explosive millimeters (2 to 5 mm). In addition, the shells are subject to severe mechanical environments (falls and vibrations).

La combinaison des chocs thermiques et mécaniques conduit à l'apparition de fissures dans le chargement explosif. Ces fissures peuvent conduire à une initiation prématurée lors de l'utilisation de l'obus.The combination of thermal and mechanical shocks leads at the appearance of cracks in the explosive charge. These cracks can lead to premature initiation when the use of the shell.

On connaít par le brevet EP1338860 un obus comprenant un chargement en explosif composite. Afin de pallier les problèmes liés à la dilatation du chargement explosif, cet obus comprend un étui en forme de sac réalisé en un matériau élastique, étui qui est interposé entre l'enveloppe de l'obus et le chargement. Par ailleurs une rondelle de maintien est appliquée sur une surface du chargement explosif par le vissage d'une bague de fixation de la fusée.Patent EP1338860 discloses a shell comprising a loading in composite explosive. In order to mitigate problems related to the expansion of the explosive charge, this shell includes a bag-shaped case made of a material elastic, holster that is interposed between the shell of the shell and loading. In addition, a holding washer is applied to a surface of the explosive charge by the screwing a ring fixing the rocket.

Avec un tel obus il est nécessaire de charger l'obus avec la composition, de procéder à sa polymérisation par cuisson, puis d'usiner une face supérieure du chargement avant de positionner la rondelle de calage.With such a shell it is necessary to load the shell with the composition, to carry out its polymerization by cooking, then machine an upper face of the load before position the lock washer.

C'est le but de l'invention que de proposer un obus explosif dont le mode de chargement est simplifié mais qui comporte néanmoins des moyens permettant d'éviter l'apparition de fissures, dommages ou décollements dans le chargement explosif.It is the goal of the invention to propose a shell explosive whose mode of loading is simplified but which nevertheless has means to avoid the appearance of cracks, damage or delamination in the explosive charge.

Ainsi l'invention a pour objet un obus explosif comprenant un chargement explosif fusionnable disposé dans une enveloppe comportant une ouverture, obus comprennant un moyen de calage disposé au voisinage de l'ouverture de l'obus, moyen de calage comprenant une bague réalisée en un matériau élastique et qui est interposée entre une partie avant de l'enveloppe de l'obus et le chargement explosif, bague qui est comprimée par un moyen de compression, obus caractérisé en ce que la bague de calage comporte une collerette qui se loge dans une gorge de l'enveloppe de l'obus.Thus the invention relates to an explosive shell comprising a mergeable explosive charge arranged in an envelope with an opening, shells comprising a means of wedging disposed in the vicinity of the opening of the shell, a wedging means comprising a ring made in one elastic material and which is interposed between a part before the shell of the shell and the explosive charge, ring which is compressed by compression means, shells characterized in that the wedging ring has a collar that fits into a throat of the envelope of the shell.

Selon un mode particulier de réalisation, le moyen de compression comprend une pièce de raccordement vissée dans l'ouverture de l'obus et qui exerce une contrainte de compression sur la bague de calage.According to a particular embodiment, the means of compression comprises a connection piece screwed into the opening of the shell and which exerts a constraint of compression on the setting ring.

Le moyen de compression comprendra avantageusement une rondelle interposée entre la pièce de raccordement et la bague de calage.The compression means will advantageously comprise a washer interposed between the connecting piece and the timing ring.

La bague de calage pourra présenter un alésage axial cylindrique ainsi qu'un profil externe épousant le profil interne de l'enveloppe.The setting ring may have an axial bore cylindrical and an external profile matching the profile internal envelope.

Selon un autre mode de réalisation de l'invention, l'obus pourra comprendre un comprimé d'amorçage disposé dans l'alésage axial cylindrique de la bague de calage.According to another embodiment of the invention, the shell may include a priming tablet arranged in the cylindrical axial bore of the setting ring.

La bague de calage sera réalisée en un matériau élastomère.The setting ring will be made of a material elastomer.

D'autres avantages de l'invention apparaítront à la lecture de la description qui va suivre de modes particuliers de réalisation, description faite en référence aux dessins annexés et dans lesquels :

  • la figure 1 représente en coupe longitudinale partielle une partie avant d'un obus selon l'invention après la coulée de l'explosif et avant la mise en place de la pièce de raccordement,
  • la figure 2 est une vue de la bague de calage seule,
  • la figure 3 représente ce même obus après fixation d'une pièce de raccordement destinée à recevoir une fusée,
  • la figure 4 est analogue à la figure 3 mais représente un obus suivant un autre mode de réalisation de l'invention.
Other advantages of the invention will appear on reading the following description of particular embodiments, a description given with reference to the accompanying drawings and in which:
  • FIG. 1 represents in partial longitudinal section a front part of a shell according to the invention after the casting of the explosive and before setting up the connecting piece,
  • FIG. 2 is a view of the wedging ring alone,
  • FIG. 3 represents this same shell after fixing a connection piece intended to receive a rocket,
  • Figure 4 is similar to Figure 3 but shows a shell according to another embodiment of the invention.

En se reportant à la figure 1, un obus explosif 1 selon l'invention comprend un chargement explosif 2 fusionnable et qui est coulé à l'intérieur d'une enveloppe métallique 3. Le chargement pourra comporter du trinitrotoluène associé à de la cire et à un explosif complémentaire tel que de l'Hexogène ou de l'Octogène. Il pourra également comporter un explosif peu sensible tel que l'oxynitrotriazole (ONTA).Referring to FIG. 1, an explosive shell 1 according to the invention comprises an explosive charge 2 mergeable and which is cast inside a metal shell 3. The loading may contain trinitrotoluene wax and a complementary explosive such as Hexogen or Octogen. It may also include an explosive not very sensitive, such as oxynitrotriazole (ONTA).

Pour permettre la coulée, l'enveloppe 3 comporte une ouverture 4 qui portera un taraudage 5 permettant la fixation ultérieure d'une fusée d'amorçage (non représentée).To allow pouring, the envelope 3 has a opening 4 which will have a tapping 5 for fixing subsequent firing rocket (not shown).

Conformément à l'invention cet obus comprend un moyen de calage du chargement explosif 2 qui est disposé au voisinage de l'ouverture 4 de l'obus.According to the invention this shell comprises a means of blocking the explosive charge 2 which is disposed in the vicinity of the opening 4 of the shell.

Ce moyen de calage comprend une bague 6 qui est réalisée en un matériau élastique et qui est interposée entre une partie avant 7 de l'enveloppe 3 de l'obus et le chargement explosif 2.This locking means comprises a ring 6 which is made in an elastic material and which is interposed between a front part 7 of the envelope 3 of the shell and the loading explosive 2.

Cette bague de calage est réalisée en un matériau élastomère, compatible chimiquement avec l'explosif 2, et ayant une bonne tenue au vieillissement. On pourra par exemple réaliser la bague en un caoutchouc silicone de dureté 45 Shore.This wedging ring is made of a material elastomer, chemically compatible with the explosive 2, and having a good resistance to aging. We will be able example to make the ring in a hardness silicone rubber 45 Shore.

La figure 2 montre la bague 6 seule. Elle présente un profil externe 6a conique qui est destiné à venir épouser le profil interne 7 de l'enveloppe 3. Elle comporte également un alésage axial 6b cylindrique qui autorise le chargement de l'obus 1 par coulée et après mise en place de la bague 6.Figure 2 shows the ring 6 alone. She presents a conical outer profile 6a which is intended to come to marry the internal profile 7 of the envelope 3. It also comprises a axial bore 6b cylindrical which allows the loading of the shell 1 by casting and after setting up the ring 6.

La bague de calage 6 comporte enfin une collerette cylindrique externe 6c qui est destinée à se loger dans une gorge 8 de l'enveloppe 3 de l'obus 1.The wedging ring 6 finally has a collar cylindrical outer 6c which is intended to be housed in a 8 throat of the envelope 3 of the shell 1.

La souplesse du matériau de la bague 6 autorise son introduction manuelle, par déformation élastique, dans l'ouverture 4 de l'obus 1 et avant la coulée du chargement 2.The flexibility of the material of the ring 6 allows its manual introduction, by elastic deformation, into the opening 4 of the shell 1 and before the casting of the load 2.

La collerette 6c est introduite dans la gorge 8 et elle assure le maintien de la bague 6 par rapport à l'obus 1 avant la coulée du chargement 2.The flange 6c is introduced into the groove 8 and ensures the maintenance of the ring 6 relative to the shell 1 before the casting of the load 2.

Une fois mis en place, le profil externe 6a conique de la bague 6 est en contact avec la paroi interne de l'enveloppe 3.Once put in place, the external profile 6a conic of the ring 6 is in contact with the inner wall of the envelope 3.

On procède alors à la coulée de l'explosif au travers de l'alésage axial 6b de la bague. We then proceed to the casting of the explosive through the axial bore 6b of the ring.

Le chargement explosif est coulé jusqu'à remonter à l'intérieur de l'alésage axial 6b.The explosive charge is poured up to back to inside the axial bore 6b.

Ainsi, au niveau d'une partie avant de l'obus 1, la bague 6 est interposée entre l'explosif 2 et la paroi interne 7 de l'enveloppe 3.Thus, at the level of a front part of the shell 1, the ring 6 is interposed between the explosive 2 and the inner wall 7 of the envelope 3.

Après solidification du chargement explosif 2, on place une rondelle métallique 9 sur la face supérieure de la bague 6 (voir figure 3) .After solidification of the explosive charge 2, one places a metal washer 9 on the upper face of the ring 6 (see Figure 3).

Cette rondelle 9 a un diamètre externe inférieur au diamètre interne de l'ouverture 4 et elle porte un rebord interne 9a qui se positionne dans l'alésage axial 6b de la bague.This washer 9 has an external diameter less than inner diameter of the opening 4 and has a flange 9a which is positioned in the axial bore 6b of the Ring.

Il n'est donc pas ici nécessaire de réaliser un usinage de la face supérieure du chargement explosif après la coulée.It is not necessary here to perform a machining the upper face of the explosive charge after casting.

On visse ensuite simplement une pièce de raccordement 10 dans l'ouverture 5 de l'obus 1. Lors du vissage cette pièce vient en appui contre la rondelle 9 et elle pousse cette dernière qui vient comprimer axialement la bague 6 d'environ 7 à 10 mm. La rondelle autorise le frottement de la pièce 10. Elle permet ainsi le vissage de la pièce 10 sans détérioration de la bague 6.Then simply screw a connecting piece 10 in the opening 5 of the shell 1. When screwing this piece comes to bear against the washer 9 and she pushes this last which compresses axially the ring 6 approximately 7 to 10 mm. The washer allows the friction of the piece 10. It thus allows the screwing of the piece 10 without deterioration of the ring 6.

La pièce de raccordement 10 et la rondelle 9 constituent un moyen de compression de la bague 6.The connecting piece 10 and the washer 9 constitute means for compressing the ring 6.

Ce moyen permet d'exercer de façon permanente et réversible une contrainte de compression sur la bague de calage 6 dans toute la plage de température d'emploi de l'obus (de -46°C à +63°C). La bague 6 transmet cette contrainte au chargement explosif 2 qui se trouve donc également maintenu.This means allows to exercise permanently and reversible a compressive stress on the ring of setting 6 throughout the entire temperature range of the shell (from -46 ° C to + 63 ° C). The ring 6 transmits this explosive charge constraint 2 which is therefore also maintained.

Ce maintien permet d'éviter l'apparition de défauts ou fissures, notamment lors de manipulations brutales aux températures les plus basses.This maintenance makes it possible to avoid the appearance of defects or cracks, especially during rough handling operations lowest temperatures.

La pièce de raccordement 10 comporte un alésage interne 11 qui permet la fixation d'une fusée (non représentée).The connecting piece 10 has an internal bore 11 which allows the fixation of a rocket (not shown).

L'obus est ici représenté dans sa configuration de stockage dans laquelle un anneau de transport 12 est vissé à la pièce de raccordement 10 à la place de la fusée. The shell is here represented in its configuration of storage in which a transport ring 12 is screwed to the connecting piece 10 instead of the rocket.

La pièce de raccordement 10 comporte un fond 13 qui permet d'isoler le chargement explosif 2 de l'humidité. Ce fond sera rompu lors de l'initiation de la fusée. Il comportera une amorce de rupture circulaire permettant la projection d'une partie du fond sur le chargement explosif 2 pour permettre son amorçage.The connecting piece 10 has a bottom 13 which isolates the explosive charge 2 from moisture. This background will be broken during the initiation of the rocket. he will have a circular initiation of rupture allowing the projection of part of the bottom on the explosive charge 2 to allow it to boot.

Une telle pièce de raccordement fait l'objet de la demande de brevet FR2781877 et ne sera donc pas décrite plus en détails.Such a connecting piece is the subject of the patent application FR2781877 and will not be described more in detail.

La figure 4 montre un autre mode de réalisation d'un obus selon l'invention.Figure 4 shows another embodiment of a shell according to the invention.

Ce mode diffère du précédent en ce qu'un comprimé d'amorçage 14 est disposé dans l'alésage axial cylindrique 6b de la bague de calage 6. Ce comprimé est destiné à venir faciliter l'amorçage du chargement explosif 2 à partir de la fusée (non représentée). Un tel comprimé est classique et sa composition (qui dépend de la nature du chargement explosif) ne fait pas l'objet de la présente invention.This mode differs from the previous one in that one tablet 14 is disposed in the cylindrical axial bore 6b of the timing ring 6. This tablet is intended to come facilitate the priming of the explosive charge 2 from the rocket (not shown). Such a tablet is conventional and its composition (which depends on the nature of the explosive charge) is not the subject of the present invention.

Il est plus particulièrement utilisé lorsque le chargement explosif présente une sensibilité réduite aux agressions (chargement d'un obus qualifié de MURAT comme MUnition à Risques ATténués).It is more particularly used when the explosive charge has a reduced sensitivity to the attacks (loading of a MURAT qualified shell like MU nition to R isques AT tenuous).

Ces chargements fusionnables peu sensibles sont décrits par le brevet FR2750131, ils incorporent généralement un explosif insensible comme l'ONTA (oxynitrotriazole).These mismatched, insensitive loadings are described by the patent FR2750131, they generally incorporate a explosive insensitive like ONTA (oxynitrotriazole).

Dans les obus connus le comprimé d'amorçage est collé au chargement explosif. Cependant la colle à l'interface comprimé/chargement entraíne une mauvaise transmission de la détonation. Si le comprimé n'est pas collé, il risque par ailleurs de se déplacer lors des manipulations de l'obus et de se détériorer par effritement.In known shells the priming tablet is glued to explosive charge. However the glue at the interface compressed / loaded causes poor transmission of the detonation. If the tablet is not stuck, there is a risk that elsewhere to move around when handling the shell and to deteriorate by crumbling.

Dans l'obus selon l'invention, la compression de la bague de calage 6 par le vissage de la pièce de raccordement 10 entraíne une expansion radiale de la bague 6 qui se traduit aussi par la réduction du diamètre de son alésage 6b. En plus du calage du chargement explosif 2, la bague 6 assure alors le maintien ferme du comprimé d'amorçage 14 au contact du chargement explosif 2. In the shell according to the invention, the compression of the ring 6 by screwing the connecting piece 10 causes a radial expansion of the ring 6 which translates also by reducing the diameter of its bore 6b. More of the setting of the explosive charge 2, the ring 6 then ensures the firm maintenance of the priming tablet 14 in contact with the explosive charge 2.

Il n'est donc plus nécessaire grâce à invention de coller le comprimé d'amorçage 14. On augmente ainsi la fiabilité de l'obus 1.It is no longer necessary thanks to the invention to stick the starter tablet 14. This increases the reliability of the shell 1.

Avec ce mode de réalisation de l'invention, et afin de faciliter l'allumage du chargement 2 par le comprimé 14, il est bien entendu nécessaire de réaliser un usinage de la face supérieure du chargement explosif après la coulée.With this embodiment of the invention, and in order to facilitate the ignition of the load 2 by the tablet 14, it is of course necessary to perform a machining of the face top of the explosive charge after casting.

Ce mode de réalisation permet également de faciliter la démilitarisation des obus en fin de vie. Il suffit en effet de dévisser la pièce de raccordement 10.This embodiment also makes it easier to demilitarization of shells at the end of their life. It is enough unscrew the connecting piece 10.

La bague de calage 6 libère alors le comprimé d'amorçage 14 qui peut facilement être retiré. Le chargement explosif 2 qui a été mis en oeuvre par coulée est fusionnable et il est ensuite retiré aisément de l'obus par chauffage.The timing ring 6 then releases the priming tablet 14 which can easily be removed. The explosive charge 2 which has been implemented by casting is mergeable and it is then easily removed from the shell by heating.

Claims (6)

Obus explosif (1) comprenant un chargement explosif (2) fusionnable disposé dans une enveloppe (3) comportant une ouverture (4), obus comprennant un moyen de calage (6) disposé au voisinage de l'ouverture (4) de l'obus (1), moyen de calage comprenant une bague (6) réalisée en un matériau élastique et qui est interposée entre une partie avant de l'enveloppe (3) de l'obus et le chargement explosif (2), bague qui est comprimée par un moyen de compression (9,10), obus caractérisé en ce que la bague de calage (6) comporte une collerette (6c) qui se loge dans une gorge (8) de l'enveloppe (3) de l'obus (1).Explosive shell (1) comprising a fusible explosive charge (2) disposed in an envelope (3) having an opening (4), a shell comprising a setting means (6) disposed in the vicinity of the opening (4) of the shell (1), a wedging means comprising a ring (6) made of an elastic material and which is interposed between a front part of the envelope (3) of the shell and the explosive charge (2), which ring is compressed by a compression means (9, 10), shell characterized in that the wedge ring (6) comprises a flange (6c) which is housed in a groove (8) of the envelope (3) of the shell (1 ). Obus explosif selon la revendication 1, caractérisé en ce que le moyen de compression comprend une pièce de raccordement (10) vissée dans l'ouverture (4) de l'obus (1) et qui exerce une contrainte de compression sur la bague de calage (6).Explosive shell according to claim 1, characterized in that the compression means comprises a connecting piece (10) screwed into the opening (4) of the shell (1) and which exerts a compressive stress on the setting ring (6). Obus explosif selon la revendication 2, caractérisé en ce que le moyen de compression comprend une rondelle (9) interposée entre la pièce de raccordement (10) et la bague de calage (6).Explosive shell according to claim 2, characterized in that the compression means comprises a washer (9) interposed between the connecting piece (10) and the clamping ring (6). Obus explosif selon une des revendications 1 à 3, caractérisé en ce que la bague de calage (6) présente un alésage axial (6b) cylindrique ainsi qu'un profil externe (6a) épousant le profil interne (7) de l'enveloppe (3).Explosive shell according to one of claims 1 to 3, characterized in that the clamping ring (6) has a cylindrical axial bore (6b) and an external profile (6a) matching the internal profile (7) of the envelope ( 3). Obus explosif selon la revendication 4, caractérisé en ce qu'il comprend un comprimé d'amorçage (14) disposé dans l'alésage axial cylindrique (6b) de la bague de calage (6).Explosive shell according to claim 4, characterized in that it comprises a priming tablet (14) arranged in the cylindrical axial bore (6b) of the setting ring (6). Obus explosif selon une des revendications 1 à 5, caractérisé en ce que la bague de calage (6) est réalisée en un matériau élastomère.Explosive shell according to one of claims 1 to 5, characterized in that the locking ring (6) is made of an elastomeric material.
EP04292486A 2003-11-17 2004-10-20 Explosive ammuniton with increased resistance against shocks Expired - Lifetime EP1533590B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04292486T PL1533590T3 (en) 2003-11-17 2004-10-20 Explosive ammuniton with increased resistance against shocks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313523 2003-11-17
FR0313523A FR2862378B1 (en) 2003-11-17 2003-11-17 EXPLOSIVE OBUS HAVING IMPROVED SHOCK RESISTANCE

Publications (2)

Publication Number Publication Date
EP1533590A1 true EP1533590A1 (en) 2005-05-25
EP1533590B1 EP1533590B1 (en) 2012-06-20

Family

ID=34430017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04292486A Expired - Lifetime EP1533590B1 (en) 2003-11-17 2004-10-20 Explosive ammuniton with increased resistance against shocks

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Country Link
US (1) US7174834B2 (en)
EP (1) EP1533590B1 (en)
AU (1) AU2004226912B8 (en)
CA (1) CA2484782C (en)
DK (1) DK1533590T3 (en)
ES (1) ES2389652T3 (en)
FR (1) FR2862378B1 (en)
NO (1) NO338258B1 (en)
PL (1) PL1533590T3 (en)
ZA (1) ZA200408928B (en)

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FR2924494A1 (en) 2007-12-03 2009-06-05 Nexter Munitions Sa Ammunition e.g. artillery shell, body unloading method, involves pivoting ammunition body around specific degrees to cause gravity flow of fused load via orifice, and vibrating body or applying shock to body to facilitate evacuation of load
CN101592462B (en) * 2009-07-02 2014-04-16 蒙宝林 Process for charging and packing industrial powder explosive cartridge and vibratory charging machine
EP3267143B1 (en) 2016-07-09 2019-03-06 Diehl Defence GmbH & Co. KG Bullet
CN110030884A (en) * 2019-04-08 2019-07-19 南京理工大学 A kind of split type mortar projectile and its assemble method that can quickly connect

Families Citing this family (3)

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US9459080B2 (en) 2013-03-15 2016-10-04 Hunting Titan, Inc. Venting system for a jet cutter in the event of deflagration
KR101399149B1 (en) * 2014-01-28 2014-05-27 최홍준 Ammunition container
KR101929667B1 (en) * 2017-06-14 2018-12-14 (주)수아 Lifting Plug for High Explosives Having Improved Insensitive Performance

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US4760795A (en) * 1985-10-22 1988-08-02 Royal Ordnance Plc Explosive projectiles
US4945834A (en) * 1985-10-22 1990-08-07 Royal Ordnance Plc Explosive projectiles
DE3929020A1 (en) * 1989-09-01 1991-03-21 Diehl Gmbh & Co Detonator for shell - which hollow charge booster and plastic shock absorber ring
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924494A1 (en) 2007-12-03 2009-06-05 Nexter Munitions Sa Ammunition e.g. artillery shell, body unloading method, involves pivoting ammunition body around specific degrees to cause gravity flow of fused load via orifice, and vibrating body or applying shock to body to facilitate evacuation of load
CN101592462B (en) * 2009-07-02 2014-04-16 蒙宝林 Process for charging and packing industrial powder explosive cartridge and vibratory charging machine
EP3267143B1 (en) 2016-07-09 2019-03-06 Diehl Defence GmbH & Co. KG Bullet
CN110030884A (en) * 2019-04-08 2019-07-19 南京理工大学 A kind of split type mortar projectile and its assemble method that can quickly connect
CN110030884B (en) * 2019-04-08 2021-08-03 南京理工大学 Split type mortar shell capable of being quickly connected and assembling method thereof

Also Published As

Publication number Publication date
FR2862378B1 (en) 2007-11-23
NO20044980L (en) 2005-05-18
CA2484782A1 (en) 2005-05-17
AU2004226912B8 (en) 2010-05-06
ZA200408928B (en) 2005-08-31
US20050155512A1 (en) 2005-07-21
PL1533590T3 (en) 2012-11-30
CA2484782C (en) 2012-10-02
US7174834B2 (en) 2007-02-13
EP1533590B1 (en) 2012-06-20
DK1533590T3 (en) 2012-07-23
NO338258B1 (en) 2016-08-08
AU2004226912B2 (en) 2010-01-14
AU2004226912A1 (en) 2005-06-02
FR2862378A1 (en) 2005-05-20
ES2389652T3 (en) 2012-10-30

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