EP0546888B1 - Shell where the base plate serves as a parachute pot for a submunition - Google Patents

Shell where the base plate serves as a parachute pot for a submunition Download PDF

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Publication number
EP0546888B1
EP0546888B1 EP92403239A EP92403239A EP0546888B1 EP 0546888 B1 EP0546888 B1 EP 0546888B1 EP 92403239 A EP92403239 A EP 92403239A EP 92403239 A EP92403239 A EP 92403239A EP 0546888 B1 EP0546888 B1 EP 0546888B1
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EP
European Patent Office
Prior art keywords
shell
submunitions
submunition
parachute
base plate
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Expired - Lifetime
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EP92403239A
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German (de)
French (fr)
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EP0546888A1 (en
Inventor
Jean-Pierre Frehaut
Pascal Laurend
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TDA Armements SAS
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TDA Armements SAS
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Publication of EP0546888A1 publication Critical patent/EP0546888A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, 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
    • F42B12/56—Projectiles, 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
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile

Definitions

  • the present invention relates to a cargo shell whose base is parachute jar office of a submunition. It applies in particular to shells containing submunitions equipped with parachutes and intended to be dropped by these shells.
  • Some shells may contain several submunitions stacked one after the other. These submunitions are generally equipped with a parachute slowing their fall towards the ground. Each submunition is then equipped at the rear with a containment pot now his parachute folded. They are ejected from the shell from the rear of this one following the combustion of a pyrotechnic charge of stripping commanded chrono-metrically at the front of the shell.
  • German patent application DE 3,635,361 the description of which summarizes the preamble of independent claim 1, presents a shells with submunitions equipped with parachutes.
  • the submunitions Although ejected from the shell from the rear, the submunitions nevertheless continue their course according to the direction and direction of the shell at time of ejection. At this time, the submunitions remain stacked as they were in the shell. Their ejection having taken place from the rear, this which advantageously contributes to slowing them down, it follows that the base of the shell accompanies them in their race, from the rear. Submunitions before opening their parachute should generally be slowed down. In this Indeed, they each have their own braking means, a small parachute or flexible sipes deploying laterally, for example.
  • These submunitions can be equipped with fragile elements, sensors in particular, sensitive to mechanical shock. It is therefore necessary when the braking phase, that the submunitions do not collide. In especially the base must be braked more strongly than the submunitions in order let him not come up against them. This requires equipping it with means more braking than those in submunitions, so relatively bulky.
  • the object of the invention is to overcome the aforementioned drawbacks.
  • the invention relates to a shell as described in the claim 1.
  • the main advantages of the invention are that it increases the volume available inside the shell, which eliminates the risk of shocks between the submunitions and the shell of the shell, finally that they decrease the number of elements therefore the cost of the shell.
  • Figure 1 shows a shell 1, having a envelope 11 and containing unloading means 7 and submunitions 3, 5.
  • the shell 1 is closed by a base 2 according to prior art.
  • the submunitions 3, 5 are equipped on their part rear of parachutes contained in pots 4, 6 closed by submunitions.
  • the base 2 is capable of supporting on its external face 8 of very strong pressures, in particular at the time of its launch by a cannon; these pressures can for example reach 4000 bars.
  • the base 2 also includes means for braking 9, not deployed when it is integral with shell 1.
  • the base 2 is for example screwed onto shell 1 so as to maintain solidarity with it.
  • the submunitions are ejected following the combustion of a gas generator unloading 7 for example, placed in front of the shell. This combustion is started after a delay predetermined by example using a chronometric rocket.
  • the pressure pushes submunitions 3, 5 towards the rear of shell 1, the thrust being strong enough to separate base 2 from the shell 1 by destroying the means 10 for holding the base 2 on the shell 1, these holding means 10 can be a thread by example, allowing to screw the base 2 on the shell 1.
  • the submunitions 3, 5, ejected from shell 1 from the rear nevertheless continue their course in the same direction and the same direction as the shell with a lower speed because of the thrust they suffered.
  • Base 2 has the same speed that submunitions 3, 5 and therefore accompanies them in their race.
  • Figure 2 illustrates the relative position of the submunitions 3, 5 and pellet 2 after their ejection from the shell 1.
  • the submunitions 3, 5 are always provided with their pots 4, 6 in order to protect and keep folded their parachutes.
  • braking means 21, 22, lamellae for example are deployed and put into action to slow the speed of submunitions 3, 5.
  • the braking means 9 of the base 2 also slow it down. They must act in such a way that it does not come up against the submunition 5 placed directly in front of him. To avoid any risk of shock, it must be slower than submunitions 3, 5. It follows that its braking means 9 must be significant and therefore bulky.
  • FIG. 3 shows a possible example of shell 1 produced according to the invention.
  • This shell contains means of stripping 7, a gas generator for example, and submunitions 3, 5 identical to those of the preceding figures. It contains at the rear a submunition 31 whose body is identical to the bodies of other submunitions 3, 5 but whose jar containing its parachute is constituted by the base 2 of shell 1.
  • Pellet 2 while being integral with the submunition 31 is held integral with shell 1 by holding means 10, a thread for example allowing it to be screwed on the shell.
  • the base 2 can also for example be made integral shell 1 by means of screws and pins likely to be sheared, means known to those skilled in the art.
  • the submunition 31 is secured with the base 2 to using screws for example.
  • the submunitions 3, 5, 31 are ejected from shell 1 from the back of it, as previously described, i.e. following a combustion of the gas generator unloading 7 at the front of shell 1 and following the destruction of means 10 for holding the base 2 on the shell 1.
  • Figure 4 shows submunitions 3, 5, 31 after their ejection from shell 1 continuing their course in the same direction than this one.
  • the parachutes not yet being deployed, the pots 4, 6, 2 are still integral with the submunitions 3, 5, 31.
  • the parachute jar of the submunition 31 which was placed at the rear of shell 1 is in makes the shell of this shell 1. This one contains in its interior 42 the parachute of the submunition 31.
  • the base 2 being integral with the submunition 31, it no longer risks colliding with it.
  • the braking means 41 may for example be deployed slats.
  • Base 2 having had to undergo strong pressures when ejecting shell 1 from a cannon, this base 2 serving as a parachute jar for the submunition 31 is more resistant, therefore heavier than the others pots 4, 6 of the other submunitions 3, 5. Consequently, the braking means 41 of the submunition 31 are more powerful than those of other submunitions 3, 5.
  • these braking means 41 being common to submunition 31 and at base 2, braking of the base no longer wastes space inside the shell 1, since these braking means are shared between the submunition 31 and base 2.
  • the shell base according to the invention by acting as a pot the parachute allows increase the number of submunitions inside the shell.
  • Figure 5 illustrates the deployment of parachute 51 of submunition 31 by separating it from its pot or shell 2. This separation can be for example triggered according to a predetermined delay.
  • the means maintenance and separation of base 2 from submunition 31 are identical to those of other submunitions 3, 5, the separation means can for example be means pyrotechnics.
  • To allow the deployment of parachute 51 this one is connected at one of its ends to a rope 52, itself connected to the base 2. Under the action of force drive base 2 whose thrust is direction opposite the speed of the submunition 31, the rope 52 cut when the parachute 51 is completely unfolded.
  • shells according to the invention presented by the figure 3 contains three submunitions, this number is given to title of example and can vary in particular according to the length of shell or submunitions, or following other settings.

Description

La présente invention concerne un obus cargo dont le culot fait office de pot de parachute d'une sous-munition. Elle s'applique notamment à des obus contenant des sous-munitions équipées de parachutes et destinées à être larguées par ces obus.The present invention relates to a cargo shell whose base is parachute jar office of a submunition. It applies in particular to shells containing submunitions equipped with parachutes and intended to be dropped by these shells.

Certains obus peuvent contenir plusieurs sous-munitions empilées les unes à la suite des autres. Ces sous-munitions sont généralement équipées d'un parachute ralentissant leur chute vers le sol. Chaque sous-munition est alors équipée à l'arrière d'un pot de confinement maintenant son parachute plié. Elles sont éjectées de l'obus par l'arrière de celui-ci suite à la combustion d'une charge pyrotechnique de dépotage commandée chrono-métriquement à l'avant de l'obus.Some shells may contain several submunitions stacked one after the other. These submunitions are generally equipped with a parachute slowing their fall towards the ground. Each submunition is then equipped at the rear with a containment pot now his parachute folded. They are ejected from the shell from the rear of this one following the combustion of a pyrotechnic charge of stripping commanded chrono-metrically at the front of the shell.

Une demande de brevet allemand DE 3 635 361 dont l'exposé résume le préambule de la revendication indépendante 1, présente un obus avec des sous-munitions équipées de parachutes.German patent application DE 3,635,361 the description of which summarizes the preamble of independent claim 1, presents a shells with submunitions equipped with parachutes.

Bien qu'éjectées de l'obus par l'arrière, les sous-munitions continuent néanmoins leur course suivant le sens et la direction de l'obus au moment de l'éjection. A cet instant, les sous-munitions restent empilées comme elles l'étaient dans l'obus. Leur éjection ayant eu lieu par l'arrière, ce qui contribue avantageusement à les ralentir, il s'ensuit que le culot de l'obus les accompagne dans leur course, par l'arrière. Les sous-munitions avant l'ouverture de leur parachute doivent en général être ralenties. A cet effet, elles possèdent chacune leurs propres moyens de freinage, un petit parachute ou des lamelles flexibles se déployant latéralement, par exemple. Ces sous-munitions peuvent être équipées d'éléments fragiles, des capteurs notamment, sensibles aux chocs mécaniques. Il est donc nécessaire lors de la phase de freinage, que les sous-munitions ne s'entrechoquent pas. En particulier le culot doit être freiné plus fortement que les sous-munitions afin qu'il ne vienne pas buter contre elles. Cela nécessite de l'équiper de moyens de freinage plus important que ceux des sous-munitions, donc relativement encombrants.Although ejected from the shell from the rear, the submunitions nevertheless continue their course according to the direction and direction of the shell at time of ejection. At this time, the submunitions remain stacked as they were in the shell. Their ejection having taken place from the rear, this which advantageously contributes to slowing them down, it follows that the base of the shell accompanies them in their race, from the rear. Submunitions before opening their parachute should generally be slowed down. In this Indeed, they each have their own braking means, a small parachute or flexible sipes deploying laterally, for example. These submunitions can be equipped with fragile elements, sensors in particular, sensitive to mechanical shock. It is therefore necessary when the braking phase, that the submunitions do not collide. In especially the base must be braked more strongly than the submunitions in order let him not come up against them. This requires equipping it with means more braking than those in submunitions, so relatively bulky.

Or, afin d'augmenter l'efficacité des obus, il est souhaitable d'augmenter le nombre de sous-munitions qu'ils contiennent. Les dimensions des obus étant imposées et normalisées, il faut donc jouer sur leur agencement intérieur. En particulier, l'espace intérieur disponible est en partie diminué par la place occupée par les moyens de freinage du culot de l'obus, ce qui peut limiter le nombre de sous-munitions contenues dans celui-ci.However, in order to increase the effectiveness of shells, it is desirable increase the number of submunitions they contain. The shell dimensions being imposed and normalized, it is therefore necessary to play on their interior layout. In particular, the available interior space is part reduced by the space occupied by the braking means of the base of the shell, which can limit the number of submunitions contained in this one.

Le but de l'invention est de pallier les inconvénients précités.The object of the invention is to overcome the aforementioned drawbacks.

A cet effet, l'invention a pour objet un obus tel que décrit dans la revendication 1.To this end, the invention relates to a shell as described in the claim 1.

L'invention a pour principaux avantages qu'elle augmente le volume disponible à l'intérieur de l'obus, qu'elle élimine le risque de chocs entre les sous-munitions et le culot de l'obus, enfin qu'elles diminue le nombre d'éléments donc le coût de l'obus.The main advantages of the invention are that it increases the volume available inside the shell, which eliminates the risk of shocks between the submunitions and the shell of the shell, finally that they decrease the number of elements therefore the cost of the shell.

D'autres caractéristiques et avantages de l'invention apparaítront à l'aide de la description qui suit faite en regard des dessins annexés qui représentent :

  • la figure 1, un obus contenant des sous-munitions selon l'art antérieur :
  • la figure 2, une illustration de la course des sous-munition et du culot de l'obus après leur éjection de l'obus :
  • la figure 3, un exemple possible d'obus contenant des sous-munitions selon l'invention ;
  • la figure 4, une illustration de la course des sous-munitions et du culot de l'obus après leur éjection de l'obus selon l'invention ;
  • la figure 5, une illustration du déploiement du parachute de la sous-munition placée à l'arrière de l'obus selon l'invention.
Other characteristics and advantages of the invention will become apparent from the following description given with reference to the appended drawings which represent:
  • FIG. 1, a shell containing submunitions according to the prior art:
  • FIG. 2, an illustration of the course of the submunitions and of the shell of the shell after their ejection from the shell:
  • Figure 3, a possible example of shells containing submunitions according to the invention;
  • FIG. 4, an illustration of the course of the submunitions and of the shell of the shell after their ejection from the shell according to the invention;
  • Figure 5, an illustration of the deployment of the parachute of the submunition placed at the rear of the shell according to the invention.

Sur toutes ces figures, le culot et l'enveloppe de l'obus, sont vus en coupe.In all these figures, the base and the envelope of the shell, are seen in section.

La figure 1 représente un obus 1, ayant une enveloppe 11 et contenant des moyens de dépotage 7 et des sous-munitions 3, 5. L'obus 1 est fermé par un culot 2 selon l'art antérieur.Figure 1 shows a shell 1, having a envelope 11 and containing unloading means 7 and submunitions 3, 5. The shell 1 is closed by a base 2 according to prior art.

Les sous-munitions 3, 5 sont équipées sur leur partie arrière de parachutes contenus dans des pots 4, 6 fermés par les sous-munitions. Le culot 2 est capable de supporter sur sa face externe 8 de très fortes pressions, notamment au moment de son lancement par un canon ; ces pressions peuvent par exemple atteindre 4000 bars. Le culot 2 comporte aussi des moyens de freinage 9, non déployés quand il est solidaire de l'obus 1. Le culot 2 est par exemple vissé sur l'obus 1 de manière à le maintenir solidaire de celui-ci. Les sous-munitions sont éjectées suite à la combustion d'un générateur de gaz de dépotage 7 par exemple, placé à l'avant de l'obus. Cette combustion est déclenchée suivant un retard prédéterminé par exemple à l'aide d'une fusée chronométrique. La pression pousse les sous-munitions 3, 5 vers l'arrière de l'obus 1, la poussée étant suffisamment forte pour désolidariser le culot 2 de l'obus 1 en détruisant les moyens de maintien 10 du culot 2 sur l'obus 1, ces moyens de maintien 10 peuvent être un filetage par exemple, permettant de visser le culot 2 sur l'obus 1. Les sous-munitions 3, 5, éjectées de l'obus 1 par l'arrière continuent néanmoins leur course dans la même direction et le même sens que l'obus avec une vitesse inférieure à cause de la poussée qu'elles ont subie. Le culot 2, possède la même vitesse que les sous-munitions 3, 5 et les accompagne donc dans leur course.The submunitions 3, 5 are equipped on their part rear of parachutes contained in pots 4, 6 closed by submunitions. The base 2 is capable of supporting on its external face 8 of very strong pressures, in particular at the time of its launch by a cannon; these pressures can for example reach 4000 bars. The base 2 also includes means for braking 9, not deployed when it is integral with shell 1. The base 2 is for example screwed onto shell 1 so as to maintain solidarity with it. The submunitions are ejected following the combustion of a gas generator unloading 7 for example, placed in front of the shell. This combustion is started after a delay predetermined by example using a chronometric rocket. The pressure pushes submunitions 3, 5 towards the rear of shell 1, the thrust being strong enough to separate base 2 from the shell 1 by destroying the means 10 for holding the base 2 on the shell 1, these holding means 10 can be a thread by example, allowing to screw the base 2 on the shell 1. The submunitions 3, 5, ejected from shell 1 from the rear nevertheless continue their course in the same direction and the same direction as the shell with a lower speed because of the thrust they suffered. Base 2, has the same speed that submunitions 3, 5 and therefore accompanies them in their race.

La figure 2 illustre la position relative des sous-munitions 3, 5 et du culot 2 après leur éjection de l'obus 1. Les sous-munitions 3, 5 sont toujours munies de leurs pots 4, 6 afin de protéger et de maintenir pliés leurs parachutes. Des moyens de freinage 21, 22, des lamelles par exemples, sont déployés et mis en action afin de ralentir la vitesse des sous-munitions 3, 5. Les moyens de freinage 9 du culot 2 ralentissent aussi celui-ci. Ils doivent agir de manière à ce qu'il ne vienne pas buter contre la sous-munition 5 placée directement devant lui. Pour éviter tout risque de choc, il doit être plus ralenti que les sous-munitions 3, 5. Il s'ensuit que ses moyens de freinage 9 doivent être importants et donc volumineux. S'ils sont constitués par des lamelles par exemple, celles-ci doivent avoir une surface supérieure aux lamelles des sous-munitions, de façon à subir une plus grande prise d'air afin d'augmenter le freinage. Cette surface doit encore être augmentée à cause du fait que les lamelles du culot 2 étant proches de celles de la sous-munition 5, elles sont masquées en partie par ces dernières. Les moyens de freinage 9 du culot 2 sont donc encombrants et gaspillent de la place à l'intérieur de l'obus 1.Figure 2 illustrates the relative position of the submunitions 3, 5 and pellet 2 after their ejection from the shell 1. The submunitions 3, 5 are always provided with their pots 4, 6 in order to protect and keep folded their parachutes. Of braking means 21, 22, lamellae for example, are deployed and put into action to slow the speed of submunitions 3, 5. The braking means 9 of the base 2 also slow it down. They must act in such a way that it does not come up against the submunition 5 placed directly in front of him. To avoid any risk of shock, it must be slower than submunitions 3, 5. It follows that its braking means 9 must be significant and therefore bulky. If they consist of strips for example, these must have a surface greater than the slats of the submunitions, so as to undergo a greater air intake to increase braking. This surface must still be increased due to the fact that the lamellae of the base 2 being close to those of submunition 5, they are hidden in part by these. The braking means 9 of the base 2 are therefore bulky and waste space inside shell 1.

La figure 3 présente un exemple possible d'obus 1 réalisé selon l'invention. Cet obus contient des moyens de dépotage 7, un générateur de gaz par exemple, et des sous-munitions 3, 5 identiques à celles des figures précédentes. Il contient à l'arrière une sous-munition 31 dont le corps est identique aux corps des autres sous-munitions 3, 5 mais dont le pot contenant son parachute est constitué par le culot 2 de l'obus 1. Le culot 2 tout en étant solidaire de la sous-munition 31 est maintenu solidaire de l'obus 1 par des moyens de maintien 10, un filetage par exemple lui permettant de se visser sur l'obus. Le culot 2 peut aussi par exemple être rendu solidaire de l'obus 1 au moyen de vis et de goupilles susceptibles d'être cisaillées, moyen connu de l'homme de l'art.Figure 3 shows a possible example of shell 1 produced according to the invention. This shell contains means of stripping 7, a gas generator for example, and submunitions 3, 5 identical to those of the preceding figures. It contains at the rear a submunition 31 whose body is identical to the bodies of other submunitions 3, 5 but whose jar containing its parachute is constituted by the base 2 of shell 1. Pellet 2 while being integral with the submunition 31 is held integral with shell 1 by holding means 10, a thread for example allowing it to be screwed on the shell. The base 2 can also for example be made integral shell 1 by means of screws and pins likely to be sheared, means known to those skilled in the art.

La sous-munition 31 est solidarisée avec le culot 2 à l'aide de vis par exemple.The submunition 31 is secured with the base 2 to using screws for example.

Les sous-munitions 3, 5, 31 sont éjectées de l'obus 1 par l'arrière de celui-ci, comme cela a été précédemment décrit, c'est à dire suite à une combustion du générateur de gaz de dépotage 7 à l'avant de l'obus 1 et suite à une destruction des moyens de maintien 10 du culot 2 sur l'obus 1.The submunitions 3, 5, 31 are ejected from shell 1 from the back of it, as previously described, i.e. following a combustion of the gas generator unloading 7 at the front of shell 1 and following the destruction of means 10 for holding the base 2 on the shell 1.

La figure 4 présente les sous-munitions 3, 5, 31 après leur éjection de l'obus 1 continuant leur course dans la même direction que celui-ci. Les parachutes n'étant pas encore déployés, les pots 4, 6, 2 sont encore solidaires des sous-munitions 3, 5, 31. Le pot de parachute de la sous-munition 31 qui était placée à l'arrière de l'obus 1 est en fait le culot de cet obus 1. Celui-ci contient dans son intérieur 42 le parachute de la sous-munition 31.Figure 4 shows submunitions 3, 5, 31 after their ejection from shell 1 continuing their course in the same direction than this one. The parachutes not yet being deployed, the pots 4, 6, 2 are still integral with the submunitions 3, 5, 31. The parachute jar of the submunition 31 which was placed at the rear of shell 1 is in makes the shell of this shell 1. This one contains in its interior 42 the parachute of the submunition 31.

Le culot 2 étant solidaire de la sous-munition 31, il ne risque plus de rentrer en collision avec elle.The base 2 being integral with the submunition 31, it no longer risks colliding with it.

Des moyens de freinage 41 de la sous-munition 31, analogues à ceux 21, 22 des autres sous-munitions 3, 5, sont activés. Les moyens de freinage 41 peuvent être par exemple des lamelles déployées. Le culot 2 ayant dû subir de fortes pressions au moment de l'éjection de l'obus 1 d'un canon, ce culot 2 faisant office de pot de parachute de la sous-munition 31 est cependant plus résistant, donc plus lourd que les autres pots 4, 6 des autres sous-munitions 3, 5. En conséquence, les moyens de freinage 41 de la sous-munition 31 sont plus puissants que ceux des autres sous-munitions 3, 5.Braking means 41 of the submunition 31, similar to those 21, 22 of the other submunitions 3, 5, are activated. The braking means 41 may for example be deployed slats. Base 2 having had to undergo strong pressures when ejecting shell 1 from a cannon, this base 2 serving as a parachute jar for the submunition 31 is more resistant, therefore heavier than the others pots 4, 6 of the other submunitions 3, 5. Consequently, the braking means 41 of the submunition 31 are more powerful than those of other submunitions 3, 5.

Si ces moyens de freinage sont réalisés par des lamelles, celles-ci devront par exemple être plus nombreuses.If these braking means are produced by lamellae, these should for example be more numerous.

Néanmoins, ces moyens de freinage 41 étant communs à la sous-munition 31 et au culot 2, le freinage du culot n'entraíne plus un gaspillage de place à l'intérieur de l'obus 1, puisque ces moyens de freinage sont partagés entre la sous-munition 31 et le culot 2. Au contraire, le culot de l'obus selon l'invention en faisant office de pot le parachute permet d'augmenter le nombre de sous-munitions à l'intérieur de l'obus.However, these braking means 41 being common to submunition 31 and at base 2, braking of the base no longer wastes space inside the shell 1, since these braking means are shared between the submunition 31 and base 2. On the contrary, the shell base according to the invention by acting as a pot the parachute allows increase the number of submunitions inside the shell.

La figure 5 illustre le déploiement du parachute 51 de la sous-munition 31 par séparation de celle-ci d'avec son pot ou culot 2 d'obus. Cette séparation peut être par exemple déclenchée selon un retard pré-déterminé. Les moyens le maintien et de séparation du culot 2 d'avec la sous-munition 31 sont identiques à ceux des autres sous-munitions 3, 5, les moyens de séparation peuvent par exemple être des moyens pyrotechniques. Pour permettre le déploiement du parachute 51, celui-ci est relié à une de ses extrémités à une corde 52, elle-même reliée au culot 2. Sous l'action de la force d'entraínement du culot 2 dont la poussée subie est de sens opposée à la vitesse de la sous-munition 31, la corde 52 se coupe au moment où le parachute 51 est complétement déplié.Figure 5 illustrates the deployment of parachute 51 of submunition 31 by separating it from its pot or shell 2. This separation can be for example triggered according to a predetermined delay. The means maintenance and separation of base 2 from submunition 31 are identical to those of other submunitions 3, 5, the separation means can for example be means pyrotechnics. To allow the deployment of parachute 51, this one is connected at one of its ends to a rope 52, itself connected to the base 2. Under the action of force drive base 2 whose thrust is direction opposite the speed of the submunition 31, the rope 52 cut when the parachute 51 is completely unfolded.

L'exemple d'obus selon l'invention présenté par la figure 3 contient trois sous-munitions, ce nombre est donné à titre d'exemple et peut varier notamment suivant la longueur de l'obus ou des sous-munitions, ou encore suivant d'autres paramètres.The example of shells according to the invention presented by the figure 3 contains three submunitions, this number is given to title of example and can vary in particular according to the length of shell or submunitions, or following other settings.

Claims (6)

  1. Shell (1) containing submunitions (3, 5, 31) which are stacked one behind the other, the shell being closed at the rear by a base plate (2), the submunitions (3, 5, 31) each being equipped at their rear with a parachute and with a pot (4, 6, 2) containing the folded parachute, the separation of each submunition (3, 5, 31) from its pot (4, 6, 2) allowing its parachute to deploy, the pot (2) for the submunition (31) placed at the rear of the shell (1) consisting of the base plate (2) of the shell (1), characterized in that since each pot is equipped with braking means (21, 22, 9) for slowing down the path of its submunition, the base plate (2) of the shell is kept attached to the said submunition (31) after the latter has been ejected from the shell (1).
  2. Shell according to Claim 1, characterized in that the base plate (2) is screwed into the shell (1).
  3. Shell according to Claim 1, characterized in that the base plate (2) is kept attached to the shell (1) by screws and pins which can be sheared.
  4. Shell according to any one of the preceding claims, characterized in that the submunition (31) placed at the rear of the shell (1) is attached to the base plate (2) using screws.
  5. Shell according to any one of the preceding claims, characterized in that the braking means (21, 22, 41) consist of thin strips which deploy after the submunitions (3, 5, 31) have been ejected from the shell (1).
  6. Shell according to any one of the preceding claims, characterized in that one end of the parachute (51) of the submunition (31) placed at the rear of the shell (1) is connected to a cord (52) itself connected to the base plate (2), the cord (52) snapping at the moment the parachute (51) is practically fully deployed.
EP92403239A 1991-12-10 1992-12-01 Shell where the base plate serves as a parachute pot for a submunition Expired - Lifetime EP0546888B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115268A FR2684754B1 (en) 1991-12-10 1991-12-10 SHELL OF WHICH THE PANT IS A PARACHUTE POT OF A SUBMUNITION.
FR9115268 1991-12-10

Publications (2)

Publication Number Publication Date
EP0546888A1 EP0546888A1 (en) 1993-06-16
EP0546888B1 true EP0546888B1 (en) 1998-03-04

Family

ID=9419850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403239A Expired - Lifetime EP0546888B1 (en) 1991-12-10 1992-12-01 Shell where the base plate serves as a parachute pot for a submunition

Country Status (4)

Country Link
US (1) US5299503A (en)
EP (1) EP0546888B1 (en)
DE (1) DE69224601T2 (en)
FR (1) FR2684754B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015025145A1 (en) 2013-08-20 2015-02-26 Bae Systems Plc Illumination munition
SE540780C2 (en) * 2016-04-06 2018-11-06 Bae Systems Bofors Ab Divisible grenade with parachute
SE540399C2 (en) 2016-04-20 2018-09-11 Bae Systems Bofors Ab Support device for divisible parachute grenade
SE541612C2 (en) * 2016-09-15 2019-11-12 Bae Systems Bofors Ab Modifiable divisible projectile and method for modifying a projectile
RU2694457C1 (en) * 2018-10-01 2019-07-15 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Jet projectile head part

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DE2518645C2 (en) * 1975-04-26 1986-07-17 Rheinmetall GmbH, 4000 Düsseldorf Twist brake for a payload that can be ejected from a twist projectile
SE416078B (en) * 1976-08-23 1980-11-24 Foerenade Fabriksverken DEVICE FOR SUSPENSION AND SEPARATION OF MULTIPLE BODIES OF A GRANATE OR SIMILAR
DE3111907A1 (en) * 1981-03-26 1982-10-07 Dynamit Nobel Ag, 5210 Troisdorf METHOD FOR DISTRIBUTING SUBMUNITION
DE3635361A1 (en) * 1986-10-17 1988-04-21 Diehl Gmbh & Co Artillery shell with submunitions
DE3643293A1 (en) * 1986-12-18 1988-06-30 Rheinmetall Gmbh SWIRL-STABILIZED SHOULDER FLOOR WITH AT LEAST TWO SUBMUNITION SHELLS
DE3643291A1 (en) * 1986-12-18 1988-06-23 Rheinmetall Gmbh SWIRL-STABILIZED SHELTER FLOOR
FR2616217B1 (en) * 1987-06-02 1993-02-05 Thomson Brandt Armements SYSTEM FOR HOLDING MULTIPLE LOADS ON BOARD IN A PROJECTILE ROTATING AROUND ITS LONGITUDINAL AXIS
DE3743840A1 (en) * 1987-12-23 1989-07-06 Diehl Gmbh & Co Projectile having a submunition
FR2629908B1 (en) * 1988-04-12 1993-05-14 Thomson Brandt Armements AERODYNAMIC BRAKING DEVICE OF A BODY
FR2639106B1 (en) * 1988-11-15 1990-12-21 Thomson Brandt Armements DEVICE FOR LOCKING AND UNLOCKING TWO ELEMENTS OF A PROJECTILE, PARTICULARLY A PARACHUTE POT
FR2642159B1 (en) * 1989-01-20 1991-03-29 Thomson Brandt Armements DEVICE FOR INCLINED POSITIONING OF A SUBMUNITION UNDER A PARACHUTE
FR2644881B1 (en) * 1989-03-22 1991-05-31 France Etat Armement CONNECTION DEVICE BETWEEN A FIRST AND SECOND SECTION OF A GYROSTABILIZED PROJECTILE
DE3926711C2 (en) * 1989-08-12 1995-12-07 Rheinmetall Ind Gmbh Storey with interior
DE3937762C2 (en) * 1989-11-14 1993-11-25 Diehl Gmbh & Co Artillery shell submunition

Also Published As

Publication number Publication date
FR2684754B1 (en) 1995-04-07
EP0546888A1 (en) 1993-06-16
DE69224601D1 (en) 1998-04-09
US5299503A (en) 1994-04-05
FR2684754A1 (en) 1993-06-11
DE69224601T2 (en) 1998-06-18

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