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EP0346214A1 - Method for ejecting sub-projectiles, and projectile for carrying out such a method - Google Patents

Method for ejecting sub-projectiles, and projectile for carrying out such a method Download PDF

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Publication number
EP0346214A1
EP0346214A1 EP89401561A EP89401561A EP0346214A1 EP 0346214 A1 EP0346214 A1 EP 0346214A1 EP 89401561 A EP89401561 A EP 89401561A EP 89401561 A EP89401561 A EP 89401561A EP 0346214 A1 EP0346214 A1 EP 0346214A1
Authority
EP
European Patent Office
Prior art keywords
projectile
submunitions
tube
rear part
rod
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
EP89401561A
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German (de)
French (fr)
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EP0346214B1 (en
Inventor
Jean Deffayet
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Thomson Brandt Armements SA
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Thomson Brandt Armements SA
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Publication date
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Publication of EP0346214A1 publication Critical patent/EP0346214A1/en
Application granted granted Critical
Publication of EP0346214B1 publication Critical patent/EP0346214B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/60Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected radially

Definitions

  • the invention relates to a method of ejecting submunitions from a projectile whose natural roll speed is zero or low. It also relates to a projectile equipped with means allowing the implementation of this process.
  • projectile any vehicle launched by cannon, by self-propulsion, by aircraft, etc., and following a ballistic or corrected trajectory.
  • the invention relates more precisely to projectiles comprising sub-projectiles ejected at a given time on the trajectory of the carrier projectile.
  • Another solution is to generate a roll in the terminal phase of the trajectory shortly before the ejection sequence. Many means are possible such as turning, etc. All of these methods have the drawback of being specific to the desired effect and therefore of causing additional bulk, mass and a non-negligible cost.
  • the present invention aims to overcome these drawbacks and relates to a new method of ejecting submunitions from a projectile whose natural roll speed is practically zero, which method has the advantage of being part of the same sequence opening the vehicle without the need for additional heavy, bulky and expensive means.
  • the invention relates more precisely to a method of ejecting submunitions from the projectile which carries them, this projectile: - comprising, on the one hand, an envelope ending in a warhead forming a front part, this front part being locked by means of locking to a rear part called "base"; - comprising, on the other hand, a rod moving inside a tube to serve as a piston under the action of a pyrotechnic charge in order to separate the rear part from the front part; process characterized in that, after unlocking the locking means and igniting the pyrotechnic charge, rotating the front part of the projectile relative to the rear part of the latter, the submunitions being integral with the rear part by holding means, thanks to the combination of stripes produced on one of the parts of the projectile cooperating with a forcing belt itself comprising stripes and integral with the other part, to give each of the ammunition an initial transverse speed (v) allowing optimal dispersion of the submunitions to be obtained.
  • this projectile (1) As shown in FIG. 1, supplemented by FIG. 2 which represents the projectile of FIG. 1 in a configuration corresponding to the ejection of the submunitions, this projectile (1) according to the invention comprises an envelope (2) generally cylindrical ending in a warhead (3).
  • the latter is itself integral with an axial rod (4) intended, as will be explained below, to play a piston function.
  • the rod (4) enters a tube (5) integral with the rear part (base 13) of the projectile (1), leaving at the end a free space (chamber 6) occupied by a pyrotechnic charge (not shown in the figure).
  • the tube (5) is scratched and the rod (4) receives a forcing belt or machined teeth.
  • the combination (100) "stripes of the tube + forcing belt or teeth” is symbolized by a reinforced line in the figure, and this for the purpose of clarity.
  • This combination induces a rotational movement. It allows the implementation of the method of ejecting the submunitions (20) contained in the projectile (1).
  • the pyrotechnic charge is started by taking care to carry out the prior or simultaneous unlocking of the means (12) for securing to the base (13 )
  • the rod (4) plays its piston function and, as shown in FIG. 2, ejects the warhead (3), this ejection taking place with a rotational movement in a given direction (arrow f1) for the front of the projectile and an opposite direction (arrow f2) for the rear part.
  • the pitch of the scratches is chosen so as to obtain a roll speed of the rear part which results in an optimal transverse ejection speed (v) of the submunitions (20) depending on their initial distance to the axis (xx ') of the projectile (1).
  • this projectile comprises the casing (2) integral with the axial rod (4) which penetrates into the striped tube (5) thanks to the combination 100 as previously described.
  • this tube (5) are fixed, for example, elements (14), for example, metallic, to establish compartments (16) inside which the submunitions (20) are positioned.
  • the set of submunitions (20) is held in each compartment by holding means, for example, a belt (15) controlled, for example, by an explosive system not shown, which ensures that all of the tube submunitions (5); these holding means are generally unlocked when the assembly of submunitions (20) and tube (5) has reached a maximum speed which constitutes the initial speed of the submunitions (20) after ejection of the warhead (3) but they can be unlocked in a delayed manner and for each compartment.
  • holding means for example, a belt (15) controlled, for example, by an explosive system not shown, which ensures that all of the tube submunitions (5); these holding means are generally unlocked when the assembly of submunitions (20) and tube (5) has reached a maximum speed which constitutes the initial speed of the submunitions (20) after ejection of the warhead (3) but they can be unlocked in a delayed manner and for each compartment.
  • FIG. 4 which illustrates an alternative embodiment of the invention, a reverse architecture is produced.
  • the rod (4) acting as a piston is this time made integral with the base (13).
  • the tube (5) and the chamber (6) are then made integral with the warhead (3).
  • the submunitions (20) are connected to the rear part, that is to say to the base (13 ) by any known means (30);
  • This last speed is to be added to the initial roll speed of the vehicle, if it exists. If this speed is 10 revolutions / s and the submunitions are placed between 54 mm and 120 mm from the axis (xx ′) of the projectile, the ejection speeds perpendicular to this axis are between 9 and 20 ms ⁇ 1.
  • the release of the submunitions can be immediate, that is to say as soon as the envelope discovers the section concerned. It can also be deferred, submunitions being retained for example by a collar unlocked at the optimal time after moving away from the envelope.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The invention relates to a method for ejecting submunitions from a projectile of zero or low rolling speed. It also relates to a projectile equipped with means making it possible to carry out this method. …<??>The front part (2,3) of the projectile (1) is separated from the rear part (13) as a result of the displacement of a piston (4) in a tube (5) under the effect of a pyrotechnic charge. The combination in the region of this piston (4) and of this tube (5) of grooves interacting either with indentations or with a forcing band generates a sufficient rolling movement to impart to the submunitions (20) an ejection speed (v) perpendicular to the axis (xx') of the projectile. …<??>The invention is used especially on armaments which have a zero or virtually zero inherent rolling speed. …<IMAGE>…

Description

L'invention concerne un procédé d'éjection de sous-munitions à partir d'un projectile dont la vitesse propre de roulis est nulle ou faible. Elle concerne également un projectile équipé de moyens permettant la mise en oeuvre de ce procédé.The invention relates to a method of ejecting submunitions from a projectile whose natural roll speed is zero or low. It also relates to a projectile equipped with means allowing the implementation of this process.

Par projectile, on entend tout véhicule lancé par canon, par autopropulsion, par aéronef, etc, et suivant une trajectoire balistique ou corrigée. L'invention concerne plus précisément les projectiles comportant de sous-projectiles éjectés à un instant donné sur la trajectoire du projectile porteur.By projectile is meant any vehicle launched by cannon, by self-propulsion, by aircraft, etc., and following a ballistic or corrected trajectory. The invention relates more precisely to projectiles comprising sub-projectiles ejected at a given time on the trajectory of the carrier projectile.

On recherche généralement dans les projectiles à sous-munitions l'étalement latéral et axial de leur contenu, de façon à obtenir une dispersion optimale sans avoir recours au tir de nombreux projectiles, dits "cargo", dont le coût unitaire est souvent très élevé. Ce problème est relativement facilement résolu lorsque le projectile est animé d'une vitesse de roulis suffisante. On peut alors profiter de cette rotation pour donner aux sous-munitions une vitesse d'éloignement perpendiculaire à la trajectoire qui entraîne une dispersion latérale des impacts.We generally search in cluster munitions for lateral and axial spreading of their content, so as to obtain optimal dispersion without having to fire many projectiles, called "cargo", whose unit cost is often very high. This problem is relatively easily solved when the projectile has a sufficient roll speed. We can then take advantage of this rotation to give the submunitions a moving speed perpendicular to the trajectory which results in lateral dispersion of the impacts.

En revanche, lorsque le porteur ne peut être animé d'une vitesse propre de roulis suffisante, par exemple pour des problèmes de détection ou de pilotage, on doit le plus souvent faire appel à des systèmes tels que des sacs gonflables, des pistons, des moyens pyrotechniques, des ressorts, etc.On the other hand, when the carrier cannot be driven with a sufficient own roll speed, for example for detection or piloting problems, it is most often necessary to use systems such as airbags, pistons, pyrotechnic means, springs, etc.

Une autre solution consiste à générer un roulis dans la phase terminale de la trajectoire peu avant la séquence d'éjection. De nombreux moyens sont possibles tels que braquage, etc. Tous ces procédés ont le défaut d'être spécifiques de l'effet recherché et donc d'entraîner un encombrement supplémentaire, de la masse et un coût non négligeable.Another solution is to generate a roll in the terminal phase of the trajectory shortly before the ejection sequence. Many means are possible such as turning, etc. All of these methods have the drawback of being specific to the desired effect and therefore of causing additional bulk, mass and a non-negligible cost.

La présente invention a pour but de pallier ces inconvénients et concerne un nouveau procédé d'éjection de sous-munitions à partir d'un projectile dont la vitesse propre de roulis est pratiquement nulle, procédé qui a pour avantage de faire partie de la séquence même d'ouverture du véhicule sans qu'il soit nécessaire de recourir à des moyens supplémentaires lourds, encombrants et coûteux.The present invention aims to overcome these drawbacks and relates to a new method of ejecting submunitions from a projectile whose natural roll speed is practically zero, which method has the advantage of being part of the same sequence opening the vehicle without the need for additional heavy, bulky and expensive means.

L'invention concerne plus précisément un procédé d'éjection de sous-munitions à partir du projectile qui les porte, ce projectile :
- comportant, d'une part, une enveloppe se terminant par une ogive formant une partie avant, cette partie avant étant verrouillée par des moyens de verrouillage à une partie arrière dite "culot" ;
- comportant, d'autre part, une tige se déplaçant à l'intérieur d'un tube pour servir de piston sous l'action d'une charge pyrotechnique en vue de séparer la partie arrière de la partie avant ;
procédé caractérisé en ce qu'il consiste, après déverrouillage des moyens de verrouillage et mise à feu de la charge pyrotechnique, à faire tourner la partie avant du projectile par rapport à la partie arrière de ce dernier, les sous-munitions étant solidaires de la partie arrière par des moyens de maintien, grâce à la combinaison de rayures réalisées sur l'une des parties du projectile coopérant avec une ceinture de forcement comportant elle-même des rayures et solidaire de l'autre partie, pour donner à chacune des sous-munitions une vitesse transversale initiale (v) permettant d'obtenir une dispersion optimale des sous-munitions.
The invention relates more precisely to a method of ejecting submunitions from the projectile which carries them, this projectile:
- comprising, on the one hand, an envelope ending in a warhead forming a front part, this front part being locked by means of locking to a rear part called "base";
- comprising, on the other hand, a rod moving inside a tube to serve as a piston under the action of a pyrotechnic charge in order to separate the rear part from the front part;
process characterized in that, after unlocking the locking means and igniting the pyrotechnic charge, rotating the front part of the projectile relative to the rear part of the latter, the submunitions being integral with the rear part by holding means, thanks to the combination of stripes produced on one of the parts of the projectile cooperating with a forcing belt itself comprising stripes and integral with the other part, to give each of the ammunition an initial transverse speed (v) allowing optimal dispersion of the submunitions to be obtained.

L'invention sera mieux comprise à l'aide des explications qui vont suivre et des figures jointes parmi lesquelles :

  • - la figure 1 illustre schématiquement une variante de réalisation d'un projectile capable de mettre en oeuvre le procédé d'éjection des sous-projectiles selon l'invention ;
  • - la figure 2 illustre la phase d'éjection elle-même ;
  • - la figure 3 illustre une coupe transversale AA′ d'un projectile selon l'invention ;
  • - la figure 4 illustre schématiquement une autre variante d'un projectile selon l'invention.
The invention will be better understood with the aid of the explanations which follow and of the appended figures among which:
  • - Figure 1 schematically illustrates an alternative embodiment of a projectile capable of implementing the method of ejecting sub-projectiles according to the invention;
  • - Figure 2 illustrates the ejection phase itself;
  • - Figure 3 illustrates a cross section AA 'of a projectile according to the invention;
  • - Figure 4 schematically illustrates another variant of a projectile according to the invention.

Pour plus de clarté, les mêmes éléments portent les mêmes références dans toutes les figures.For the sake of clarity, the same elements are given the same references in all the figures.

Comme le montre la figure 1, complétée par la figure 2 qui représente le projectile de la figure 1 dans une configuration correspondant à l'éjection des sous-munitions, ce projectile (1) conforme à l'invention comporte une enveloppe (2) généralement cylindrique se terminant par une ogive (3).As shown in FIG. 1, supplemented by FIG. 2 which represents the projectile of FIG. 1 in a configuration corresponding to the ejection of the submunitions, this projectile (1) according to the invention comprises an envelope (2) generally cylindrical ending in a warhead (3).

Cette dernière est elle-même solidaire d'une tige axiale (4) destinée, comme cela sera expliqué plus loin, à jouer une fonction de piston. La tige (4) pénètre dans un tube (5) solidaire de la partie arrière (culot 13) du projectile (1), en laissant à l'extrémité un espace libre (chambre 6) occupé par un chargement pyrotechnique (non représenté sur la figure ).The latter is itself integral with an axial rod (4) intended, as will be explained below, to play a piston function. The rod (4) enters a tube (5) integral with the rear part (base 13) of the projectile (1), leaving at the end a free space (chamber 6) occupied by a pyrotechnic charge (not shown in the figure).

Selon une caractéristique importante de l'invention, le tube (5) est rayé et la tige (4) reçoit une ceinture de forcement ou des adents usinés. La combinaison (100) "rayures du tube + ceinture de forcement ou adents" est symbolisée par un trait renforcé sur la figure, et ceci dans un but de clarté. Cette combinaison, conformément à l'invention, induit un mouvement de rotation. Elle permet la mise en oeuvre du procédé d'éjection des sous-munitions (20) contenues dans le projectile (1).According to an important characteristic of the invention, the tube (5) is scratched and the rod (4) receives a forcing belt or machined teeth. The combination (100) "stripes of the tube + forcing belt or teeth" is symbolized by a reinforced line in the figure, and this for the purpose of clarity. This combination, according to the invention, induces a rotational movement. It allows the implementation of the method of ejecting the submunitions (20) contained in the projectile (1).

En effet, au moment où les sous-munitions (20) doivent être libérées, on initie la mise à feu de la charge pyrotechnique en ayant pris soin d'effectuer le déverrouillage préalable ou simultané des moyens (12) de solidarisation au culot (13)In fact, when the submunitions (20) must be released, the pyrotechnic charge is started by taking care to carry out the prior or simultaneous unlocking of the means (12) for securing to the base (13 )

La tige (4) joue sa fonction de piston et, comme le montre la figure 2, éjecte l'ogive (3), cette éjection se réalisant avec un mouvement de rotation selon un sens donné (flèche f1) pour l'avant du projectile et un sens opposé (flèche f2) pour la partie arrière.The rod (4) plays its piston function and, as shown in FIG. 2, ejects the warhead (3), this ejection taking place with a rotational movement in a given direction (arrow f1) for the front of the projectile and an opposite direction (arrow f2) for the rear part.

Le pas des rayures est choisi de façon à obtenir une vitesse de roulis de la partie arrière qui se traduit par une vitesse d'éjection transversale optimale (v) des sous-munitions (20) dépendant de leur distance initiale à l'axe (xx') du projectile (1).The pitch of the scratches is chosen so as to obtain a roll speed of the rear part which results in an optimal transverse ejection speed (v) of the submunitions (20) depending on their initial distance to the axis (xx ') of the projectile (1).

Comme le montre la figure 3 qui représente une coupe transversale AA′ du projectile de la figure 1, ce projectile comporte l'enveloppe (2) solidaire de la tige axiale (4) qui pénètre dans le tube rayé (5) grâce à la combinaison 100 comme décrit précédemment. Sur ce tube (5), sont fixés, par exemple, des éléments (14), par exemple, métalliques, pour établir des compartiments (16) à l'intérieur desquels les sous-munitions (20) sont positionnées. L'ensemble des sous-munitions (20) est maintenu dans chaque compartiment par des moyens de maintien, par exemple, une ceinture (15) commandée, par exemple, par un système explosif non représenté, qui assurent une solidarisation de l'ensemble des sous-munitions au tube (5) ; ces moyens de maintien sont généralement déverrouillés lorsque l'ensemble sous-munitions (20) et tube (5) a atteint une vitesse maximale qui constitue la vitesse initiale des sous-munitions (20) après éjection de l'ogive (3) mais ils peuvent être déverrouillés de manière différée et pour chaque compartiment.As shown in FIG. 3 which represents a cross section AA ′ of the projectile of FIG. 1, this projectile comprises the casing (2) integral with the axial rod (4) which penetrates into the striped tube (5) thanks to the combination 100 as previously described. On this tube (5) are fixed, for example, elements (14), for example, metallic, to establish compartments (16) inside which the submunitions (20) are positioned. The set of submunitions (20) is held in each compartment by holding means, for example, a belt (15) controlled, for example, by an explosive system not shown, which ensures that all of the tube submunitions (5); these holding means are generally unlocked when the assembly of submunitions (20) and tube (5) has reached a maximum speed which constitutes the initial speed of the submunitions (20) after ejection of the warhead (3) but they can be unlocked in a delayed manner and for each compartment.

Comme le montre la figure 4 qui illustre une variante de réalisation de l'invention, une architecture inverse est réalisée. La tige (4) faisant fonction de piston est cette fois rendue solidaire du culot (13). Le tube (5) et la chambre (6) sont alors rendus solidaires de l'ogive (3).As shown in FIG. 4 which illustrates an alternative embodiment of the invention, a reverse architecture is produced. The rod (4) acting as a piston is this time made integral with the base (13). The tube (5) and the chamber (6) are then made integral with the warhead (3).

Dans ces deux variantes, c'est le tube (4) qui est rayé mais une solution consiste à rayer extérieurement le piston. Dans ce cas, les adents ou la ceinture de forcement sont alors situés à la partie interne de la bouche du canon.In these two variants, it is the tube (4) which is scratched but one solution consists in scratching the piston externally. In this case, the teeth or the forcing belt are then located at the internal part of the muzzle of the barrel.

Dans la variante où le tube (5) est solidaire de l'arrière et le piston (4) solidaire de l'avant, les sous-munitions (20) sont liées au tube (5) (figure 1).In the variant where the tube (5) is secured to the rear and the piston (4) is secured to the front, the submunitions (20) are linked to the tube (5) (Figure 1).

Dans la variante où le piston (4) est à l'arrière et le tube (5) à l'avant, les sous-munitions (20) sont reliées à la partie arrière, c'est-à-dire au culot (13) par tout moyen connu (30);In the variant where the piston (4) is at the rear and the tube (5) at the front, the submunitions (20) are connected to the rear part, that is to say to the base (13 ) by any known means (30);

Quelle que soit la variante choisie, on obtient donc au moment de la libération des sous-munitions une vitesse de roulis qui imprime aux sous-munitions une vitesse d'éjection transversale.Whichever variant is chosen, a roll speed is thus obtained when the submunitions are released, which gives the submunitions a transverse ejection speed.

Un exemple des vitesses de roulis atteintes est donnée ci-dessous. Masse : partie avant 50 kg. partie arrière 350 kg. Inerties axiales : partie avant I₁= 1,13 m² kg. partie arrière I₂ = 1,97 m² kg. Calibre piston : 30 mm. Longueur piston : 1,70 m. Pression moyenne : 500 bars. Angle de rayure : 5°. Vitesse de séparation : 49 ms⁻¹. Vitesse de roulis ogive/culot : 45 tours/s. Vitesse de roulis partie arrière : 16,4 tours/s. An example of the roll speeds reached is given below. Mass : front part 50 kg. rear part 350 kg. Axial inertias: front part I₁ = 1.13 m² kg. rear part I₂ = 1.97 m² kg. Piston caliber: 30 mm. Piston length: 1.70 m. Average pressure: 500 bars. Stripe angle: 5 °. Separation speed: 49 ms⁻¹. Warhead / base roll speed: 45 rpm. Rolling speed rear part: 16.4 rpm.

Cette dernière vitesse est à ajouter à la vitesse de roulis initiale du véhicule, dans le cas où elle existe. Si cette vitesse est de 10 tours/s et que les sous-munitions sont disposées entre 54 mm et 120 mm de l'axe (xx′) du projectile, les vitesses d'éjection perpendiculaires à cet axe sont comprises entre 9 et 20 ms⁻¹.This last speed is to be added to the initial roll speed of the vehicle, if it exists. If this speed is 10 revolutions / s and the submunitions are placed between 54 mm and 120 mm from the axis (xx ′) of the projectile, the ejection speeds perpendicular to this axis are between 9 and 20 ms ⁻¹.

La libération des sous-munitions peut être immédiate, c'est-à-dire dès que l'enveloppe découvre la tranche concernée. Elle peut être aussi différée, les sous-munitions étant retenues par exemple par un collier déverrouillé au moment optimal après éloignement de l'enveloppe.The release of the submunitions can be immediate, that is to say as soon as the envelope discovers the section concerned. It can also be deferred, submunitions being retained for example by a collar unlocked at the optimal time after moving away from the envelope.

Claims (6)

1. Procédé d'éjection de sous-munitions à partir d'un projectile (1) qui les porte, ce projectile (1) :
- comportant, d'une part, une enveloppe (2) se terminant par une ogive (3) formant une partie avant, cette partie avant étant verrouillée par des moyens de verrouillage (12) à une partie arrière dite "culot" (13) ;
- comportant, d'autre part, une tige (6) se déplaçant à l'intérieur d'un tube (5) pour servir de piston sous l'action d'une charge pyrotechnique en vue de séparer la partie arrière de la partie avant ;
procédé caractérisé en ce qu'il consiste, après déverrouillage des moyens de verrouillage et mise à feu de la charge pyrotechnique, à faire tourner la partie avant du projectile par rapport à la partie arrière de ce dernier, les sous-munitions (20) étant solidaires de la partie arrière par des moyens de maintien (15), grâce à la combinaison de rayures réalisées sur l'une des parties du projectile coopérant avec une ceinture de forcement comportant elle-même des rayures et solidaire de l'autre partie, pour donner à chacune des sous-munitions (20) une vitesse transversale initiale (v) permettant d'obtenir une dispersion optimale des sous-munitions (20).
1. Method for ejecting submunitions from a projectile (1) which carries them, this projectile (1):
- comprising, on the one hand, an envelope (2) ending in a warhead (3) forming a front part, this front part being locked by locking means (12) to a rear part called "base"(13);
- comprising, on the other hand, a rod (6) moving inside a tube (5) to serve as a piston under the action of a pyrotechnic charge in order to separate the rear part from the front part ;
process characterized in that it consists, after unlocking the locking means and igniting the pyrotechnic charge, in rotating the front part of the projectile relative to the rear part of the latter, the submunitions (20) being integral with the rear part by holding means (15), by virtue of the combination of stripes produced on one of the parts of the projectile cooperating with a forcing belt itself comprising stripes and integral with the other part, for give each of the submunitions (20) an initial transverse speed (v) allowing optimal dispersion of the submunitions (20) to be obtained.
2. Projectile (1), caractérisé en ce qu'il met en oeuvre un procédé selon la revendication 1.2. Projectile (1), characterized in that it implements a method according to claim 1. 3. Projectile selon la revendication 2, caractérisé en ce que la tige (4) est solidaire de l'ogive et le tube (5) du culot, les rayures étant réalisées sur le tube (5) et les adents ou la ceinture de forcement réalisés sur la tige (4).3. Projectile according to claim 2, characterized in that the rod (4) is integral with the warhead and the tube (5) of the base, the stripes being produced on the tube (5) and the teeth or the forcing belt made on the rod (4). 4. Projectile selon la revendication 3, caractérisé en ce que le tube (5) est solidaire de l'ogive (3) et le piston du culot (13), les rayures étant réalisées sur ledit tube (5) et les adents ou la ceinture de forcement sur la tige (4).4. Projectile according to claim 3, characterized in that the tube (5) is integral with the warhead (3) and the piston of the base (13), the stripes being produced on said tube (5) and the forents or the forcing belt on the rod (4). 5. Projectile selon la revendication 1, caractérisé en ce que la tige (4) est rayée, les adents ou la ceinture de forcement étant alors situés à la partie interne du tube (5) jouant le rôle de bouche de canon.5. Projectile according to claim 1, characterized in that the rod (4) is scratched, the teeth or the forcing belt then being located in the internal part of the tube (5) playing the role of muzzle. 6. Projectile selon la revendication 1, caractérisé en ce que les moyens de maintien sont constitués par une ceinture (15) permettant la solidarisation de l'ensemble des sous-munitions (20) à la partie arrière (13) du projectile.6. Projectile according to claim 1, characterized in that the holding means consist of a belt (15) allowing the assembly of all the submunitions (20) to the rear part (13) of the projectile.
EP89401561A 1988-06-10 1989-06-06 Method for ejecting sub-projectiles, and projectile for carrying out such a method Expired - Lifetime EP0346214B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807767 1988-06-10
FR8807767A FR2632721B1 (en) 1988-06-10 1988-06-10 METHOD FOR EJECTING SUBMUNITIONS AND PROJECTILE IMPLEMENTING SUCH A METHOD

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EP0346214A1 true EP0346214A1 (en) 1989-12-13
EP0346214B1 EP0346214B1 (en) 1993-08-11

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EP89401561A Expired - Lifetime EP0346214B1 (en) 1988-06-10 1989-06-06 Method for ejecting sub-projectiles, and projectile for carrying out such a method

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US (1) US5005483A (en)
EP (1) EP0346214B1 (en)
DE (1) DE68908285T2 (en)
FR (1) FR2632721B1 (en)

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EP0481874A1 (en) * 1990-10-19 1992-04-22 Thomson-Brandt Armements Device for fixing grenades on board of a spinning projectile
FR2734899A1 (en) * 1990-08-24 1996-12-06 Rheinmetall Gmbh MISSILE FOR THE ATTACK OF A HELICOPTER
EP0821215A3 (en) * 1996-07-25 2001-11-07 Trw Inc. Countermeasure apparatus for deploying interceptor elements from a spin stabilized rocket
WO2009046798A1 (en) * 2007-10-05 2009-04-16 Rheinmetall Waffe Munition Gmbh Method for transferring sonar buoys to a target area and missile for carrying out said method
CN112414231A (en) * 2020-11-10 2021-02-26 北京理工大学 Distributed warhead-based multipoint detonation safety system and control method thereof
DE102022134714A1 (en) * 2022-12-23 2024-07-04 Globe UAV GmbH Device for defence against an aircraft

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US6279482B1 (en) * 1996-07-25 2001-08-28 Trw Inc. Countermeasure apparatus for deploying interceptor elements from a spin stabilized rocket
DE19749168A1 (en) * 1997-11-07 1999-05-12 Diehl Stiftung & Co Large caliber missile warhead has eccentrically arranged sub-munitions in several payload stages
RU2137086C1 (en) * 1997-11-10 1999-09-10 Государственное научно-производственное предприятие "Сплав" Cluster nose for antitank mine laying
RU2138763C1 (en) * 1998-07-06 1999-09-27 Государственное научно-производственное предприятие "Сплав" Jet projectile cluster warhead
RU2150078C1 (en) * 1999-02-11 2000-05-27 Государственный НИИМашиностроения Cluster warhead
RU2156428C1 (en) * 2000-01-19 2000-09-20 Федеральное государственное унитарное предприятие Производственное объединение "АЛМАЗ" Body of jet projectile cluster warhead
RU2166177C1 (en) * 2000-03-29 2001-04-27 Государственное унитарное предприятие "Государственное научно-производственное предприятие "Сплав" Cassette nose cone
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US6505561B1 (en) * 2001-04-25 2003-01-14 Raytheon Company Method and apparatus for inducing rotation of a dispensed payload from non-spin projectiles
US6672220B2 (en) * 2001-05-11 2004-01-06 Lockheed Martin Corporation Apparatus and method for dispersing munitions from a projectile
SE523695C2 (en) * 2001-06-12 2004-05-11 Saab Ab Ammunition device, such as grenade or similar, suitable for punching in walls or similar structures
US6910423B2 (en) 2001-08-23 2005-06-28 Raytheon Company Kinetic energy rod warhead with lower deployment angles
US6640723B2 (en) * 2002-03-25 2003-11-04 The United States Of America As Represented By The Secretary Of The Navy Mission responsive ordnance
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FR2860580B1 (en) * 2003-10-03 2005-12-16 Giat Ind Sa ANTI BUNKER MUNITION
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FR2734899A1 (en) * 1990-08-24 1996-12-06 Rheinmetall Gmbh MISSILE FOR THE ATTACK OF A HELICOPTER
EP0481874A1 (en) * 1990-10-19 1992-04-22 Thomson-Brandt Armements Device for fixing grenades on board of a spinning projectile
FR2668255A1 (en) * 1990-10-19 1992-04-24 Thomson Brandt Armements DEVICE FOR SOLIDARIZING GRENADES WITHIN A ROTATING PROJECTILE AROUND ITS LONGITUDINAL AXIS.
EP0821215A3 (en) * 1996-07-25 2001-11-07 Trw Inc. Countermeasure apparatus for deploying interceptor elements from a spin stabilized rocket
WO2009046798A1 (en) * 2007-10-05 2009-04-16 Rheinmetall Waffe Munition Gmbh Method for transferring sonar buoys to a target area and missile for carrying out said method
CN112414231A (en) * 2020-11-10 2021-02-26 北京理工大学 Distributed warhead-based multipoint detonation safety system and control method thereof
DE102022134714A1 (en) * 2022-12-23 2024-07-04 Globe UAV GmbH Device for defence against an aircraft

Also Published As

Publication number Publication date
FR2632721B1 (en) 1993-05-07
DE68908285T2 (en) 1994-02-17
EP0346214B1 (en) 1993-08-11
DE68908285D1 (en) 1993-09-16
FR2632721A1 (en) 1989-12-15
US5005483A (en) 1991-04-09

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