EP1464916A1 - Data transmission device between a firing system and a round - Google Patents

Data transmission device between a firing system and a round Download PDF

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Publication number
EP1464916A1
EP1464916A1 EP04290520A EP04290520A EP1464916A1 EP 1464916 A1 EP1464916 A1 EP 1464916A1 EP 04290520 A EP04290520 A EP 04290520A EP 04290520 A EP04290520 A EP 04290520A EP 1464916 A1 EP1464916 A1 EP 1464916A1
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EP
European Patent Office
Prior art keywords
coupling
cartridges
coupling device
firing system
cylinder head
Prior art date
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Granted
Application number
EP04290520A
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German (de)
French (fr)
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EP1464916B1 (en
Inventor
Joel Bansard
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Alkan SAS
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Alkan SAS
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Publication date
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Publication of EP1464916A1 publication Critical patent/EP1464916A1/en
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Publication of EP1464916B1 publication Critical patent/EP1464916B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms
    • F41A19/63—Electric firing mechanisms having means for contactless transmission of electric energy, e.g. by induction, by sparking gap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C17/00—Fuze-setting apparatus
    • F42C17/04—Fuze-setting apparatus for electric fuzes

Definitions

  • the present invention relates to a coupling device intended for the transmission of information and ignition energy between a weapon and ammunition.
  • the weapon in the association of a weapon and an ammunition, includes an electronic firing system allowing to act on the ammunition which, as to it, is equipped with electronic means programmable by the firing system and includes a pyrotechnic charge and an initiator to fire the ammunition under the control of the firing system.
  • This one is able to send to the ammunition not only programming and control signals, but also the firing pulse which makes it possible to ignite the pyrotechnic charge via initiator.
  • the ammunition includes a container that can be placed on the firing system and housing a plurality of cartridges.
  • Each of these cartridges includes a charge of decoy elements, a pyrotechnic charge and a electric initiator intended to ignite this pyrotechnic charge.
  • cartridges are drawn successively by a sequential control provided by the shooting system.
  • EP 0 798 535 it is known to communicate an initiator of a ammunition with a weapon firing system via a firing circuit in which is inserted a connection which galvanically establishes electrical continuity between the weapon and the ammunition.
  • the electric initiator comprises at least one contact to connect to the firing system to pass the current, the return of this can be ensured by the case, the socket or the body of the cartridge or of the ammunition.
  • this contact must include a part housed in the ammunition and a part complementary disposed in the firing system, an elastic device being necessary to guarantee good electrical contact and to overcome constraints geometric positioning of the cartridge relative to the firing system, when the ammunition is placed relative to the latter.
  • the initiator includes a current transformer whose primary is part of the ignition circuit and whose secondary transmits to the electronics of this initiator the energy necessary to its operation, as well as the signals carrying the information to be communicated.
  • This current transformer is located entirely in the cartridge (or in the ammunition).
  • the object of the invention is to provide a coupling device between a shooting and its ammunition to overcome the drawbacks of the technique earlier.
  • the subject of the invention is therefore a coupling device intended for the transmission of information and ignition energy between a firing system and a ammunition comprising at least one pyrotechnic unit placed against a surface support of a breech belonging to the firing system, the coupling device comprising, to allow the transfer of said information and said energy, to at least a first coupling part housed in said surface of the cylinder head and at at least a second coupling part housed in said pyrotechnic unit, characterized in that said first and second coupling parts are respectively in relation of energy coupling between them by being galvanically separate from each other.
  • the pyrotechnic unit of the ammunition can be simply placed against the bearing surface of the cylinder head without engagement mechanics of the coupling parts. Furthermore, the coupling parts which can be incorporated respectively in the cylinder head and in the pyrotechnic unit, it becomes easy to ensure perfect sealing of the cylinder head and the unit pyrotechnics facilitating the use of the firing / ammunition system assembly in severe humidity and / or pressure conditions. Finally, no mechanical part elastic is no longer necessary.
  • the invention also relates to a decoy system with ammunition with multiple cartridge comprising a coupling device as defined above in its version comprising a plurality of first coupling parts distributed in said bearing surface and second coupling parts placed respectively in said cartridges.
  • the embodiment of the invention which will be described relates to a ammunition for decoy launchers.
  • the invention can be applied in a more general to any set of a weapon and ammunition, the latter being have one or more cartridges, it being understood that a munition for decoy launchers in most cases includes a plurality of cartridges.
  • FIG. 1 shows such a cartridge designated by the reference 1. It is placed in a container 2 against the bearing surface 3 of a cylinder head 4 forming part a firing system 5 comprising a mechanical part 5a and a device control and ignition electronics 5b.
  • the cartridge 1 includes in particular an initiator 6 of the pyrotechnic charge (not drawn) of the cartridge 1.
  • the firing system 5 can be mounted on the structure of an aircraft A for example.
  • the electronics 5b of the firing system 5 and that of the initiator 6 can be designed in accordance with the description of the aforementioned European patent. They are not therefore not described in detail. It will be recalled, however, that the electronics 5b is capable of sending to initiator 6 a chopped current with a duty cycle and a frequency corresponding to the data to be transmitted to the initiator 6. The electronics 5b is also able to send the initiator an ignition pulse to bring fire the cartridge 1. Furthermore, preferably, the electronics of the initiator 6 can return information in the form of pulses to the firing system, in particular for let him know his status.
  • This coupling device 7 comprises a first coupling part 8 housed in the base 4 of the firing system 5 and flush with the support surface 3. It also includes a second coupling part 9 housed in the part lower part of the cartridge 1 by being flush with its lower surface, that is to say that which is intended to come into contact with the bearing surface 3. It will be noted that the term "lower” is used here for the convenience of description, the munition being able to principle be implemented in any position in space.
  • the cartridge 1 is coupled to the firing system 5 without any galvanic contact between them.
  • cartridge 1 is simply placed on the support surface 3 and held in the container 2 so as to be blocked only laterally in it (by means which have not been shown).
  • the coupling device 7 is of the inductive type.
  • cartridge 1 and the 5 firing system can also use an electro-optical coupling device.
  • it may include at least one bidirectional optical coupler a first part of which is arranged in the firing system 3 and the second part in the cartridge 1.
  • bidirectional couplers are commercially available and therefore do not require a detailed description here. Note, however, that it is better to use laser couplers in order to transmit enough power to the initiator 6 during the ignition of the cartridge 1.
  • the first coupling part 8 (hereinafter called "primary") comprises a block 10 in one magnetic material, ferrite being a preferred material.
  • This block 10 constitutes a magnetic half-circuit. It is housed in a cavity 11 of the cylinder head 4 and in the example described, it has a generally cylindrical shape. An annular groove central 12 is provided on the side facing the bearing surface 3. A coil 13 is placed in the groove 12. It is connected to the electronics 5b of the firing system 5.
  • the second coupling part 9 (hereinafter called “secondary") of the device coupling 7 comprises a block 14 made of a magnetic material such as ferrite, and housed in a cavity 15 of the cartridge 1.
  • the block 14 has a general shape cylindrical and an annular central groove 16 is formed there. In this groove 16 a coil 17 is placed. It is connected to the electronics of the initiator 6.
  • Block 14 constitutes a magnetic half-circuit, complementary to that of the firing system 5, when the cartridge 1 is correctly placed in the container 2.
  • the coils 13 and 17, as blocks 10 and 14 must be coaxial, which results in a good inductive coupling between primary 8 and secondary 9. It is also important that the primary and secondary are respectively flush with the surfaces opposite cartridge 1 and cylinder head 4 in order to reduce the air gap to a negligible value between the two magnetic blocks 10 and 14. However, they do not have to be centered relative to the body of the cartridge 1.
  • the ammunition used includes a plurality of cartridges 1 and the container 2 has a suitable shape to house these cartridges.
  • the firing system 3 can then be arranged to put them fire sequentially according to a procedure known to specialists.
  • decoy launchers generally use cartridges having a dimensioning which is now standardized according to essentially two forms.
  • cartridges of generally cylindrical shape based circular These circular-based cartridges are standardized with diameters of 19 mm, 40 mm or 60 mm, and an equal height for all these versions of 150 mm.
  • the other shape has a body with a square or rectangular base, respectively an area of one square inch or 1 x 2 square inches. In this case, the height is eight inches.
  • the coupling device which has just been described, whether it is of the inductive type or of the type electro-optic, allows not to use for each of the types of forms mentioned only one type of combination of a firing system and a cartridge ammunition despite the differentiation of standardized dimensions that we can find in both types of shapes.
  • Figures 1 to 3 illustrate this dimensional adaptability of a network of coupling devices according to the invention as regards the circular base cartridges.
  • the network of coupling devices 7 comprises in the system firing 5 a plurality of primaries 8 arranged in a network. These 8 primaries are distributed in this network in such a way that they form a subset for each standardized dimensional version of the cartridges 1 and that, when the cartridges are placed in container 2, the primaries 8 of such a sub-assembly are in the position of inductive coupling (or if necessary electro-optical) with a secondary 9 of a cartridge 1.
  • Each of the primaries 8 of this network is designed in the manner already described previously, while the cavities 11 are juxtaposed and separated by recesses 18 in which interconnections 19 pass between the coils 13.
  • These and these interconnections 19 are preferably made in the form of a multilayer printed circuit, the terminals of the coils 13 passing through notches 20 ( Figure 2) made in the blocks 10 of magnetic material.
  • the cartridges of the embodiment described being of circular base and account given that three dimensions of such cartridges are standardized, the distribution of the primaries 8 is that shown in FIG. 3.
  • the circles A, B and C respectively indicate the perimeters of the 19 mm cartridges, 40 mm and 60 mm in diameter to be accommodated in container 2 and the shaded circles D the perimeters of the primaries 8 placed in the cylinder head 4.
  • 90 primaries 8 arranged in staggered rows in groups of five; they are numbered from 1 to 90 in figure 3.
  • the coupling device that it is made in a single or networked, can easily be waterproofed for relates to these two coupling parts 8 and 9, whether they are of the inductive type or electro-optics.
  • Figures 4 and 5 show two possible embodiments of the coils of a coupling device according to the invention.
  • the turns of these coils are made in the form of conductive tracks of a multilayer printed circuit 21 the conductive tracks being suitably connected to each other to obtain a winding using bushings conductors 22 passing through the insulating layers of the printed circuit (see Figures 4 and 5 in a)).
  • each of the superimposed tracks 25 and 26 is formed of a spiral with several turns which are wound in opposite directions in the overlapping tracks.
  • Crossings 22 connect the tracks of the different layers 25 and 26.
  • the distribution primaries 8 in the bearing surface 3 will be made with a pitch between them equal to the length of one side of a square-based cartridge in an X-Y matrix (not one thumb). In this way, the ammunition can accommodate the two dimensions of cartridges whether square or rectangular.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Near-Field Transmission Systems (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The coupling device transmits information and ignition energy between a firing system (5) and ammunition comprising a pyrotechnic unit (1) placed against a support surface (3) of a breech block (4) belonging to the firing system. A first part of the coupling (8) is housed in the breech block surface and a second part (9) is located in the pyrotechnic unit. An independent claim is included for a decoy system comprising a coupling device.

Description

La présente invention est relative à un dispositif de couplage destiné à la transmission d'information et d'énergie d'allumage entre une arme et une munition.The present invention relates to a coupling device intended for the transmission of information and ignition energy between a weapon and ammunition.

Généralement, dans l'association d'une arme et d'une munition, l'arme comprend un système de tir électronique permettant d'agir sur la munition qui, quant à elle, est équipée de moyens électroniques programmables par le système de tir et comporte une charge pyrotechnique et un initiateur permettant de tirer la munition sous la commande du système de tir. Celui-ci est à même d'envoyer à la munition non seulement des signaux de programmation et de commande, mais également l'impulsion de tir qui permet d'allumer la charge pyrotechnique par l'intermédiaire de l'initiateur.Generally, in the association of a weapon and an ammunition, the weapon includes an electronic firing system allowing to act on the ammunition which, as to it, is equipped with electronic means programmable by the firing system and includes a pyrotechnic charge and an initiator to fire the ammunition under the control of the firing system. This one is able to send to the ammunition not only programming and control signals, but also the firing pulse which makes it possible to ignite the pyrotechnic charge via initiator.

Un domaine particulier, dans lequel on utilise cette conception générale est celui du leurrage passif dans lequel un lance-leurres doit être capable de leurrer des menaces utilisant du rayonnement infra-rouge, électromagnétique ou électro-optique selon la nature de son contenant qui est éjecté lors de la mise à feu du lance-leurres.One particular area in which this general conception is used is that of passive decoy in which a decoy launcher must be able to decoy threats using infrared, electromagnetic or electro-optical radiation according to the nature of its container which is ejected during the ignition of the decoy launcher.

Dans ce cas, la munition comporte un container pouvant être placé sur le système de tir et logeant une pluralité de cartouches. Chacune de ces cartouches comprend une charge d'éléments de leurrage, une charge pyrotechnique et un initiateur électrique destiné à allumer cette charge pyrotechnique. En général, les cartouches sont tirées successivement par une commande séquentielle assurée par le système de tir.In this case, the ammunition includes a container that can be placed on the firing system and housing a plurality of cartridges. Each of these cartridges includes a charge of decoy elements, a pyrotechnic charge and a electric initiator intended to ignite this pyrotechnic charge. In general, cartridges are drawn successively by a sequential control provided by the shooting system.

Par EP 0 798 535, il est connu de faire communiquer un initiateur d'une munition avec un système de tir de l'arme par l'intermédiaire d'un circuit de tir dans lequel est insérée une connectique qui établit galvaniquement la continuité électrique entre l'arme et la munition. A cet effet, l'initiateur électrique comporte au moins un contact à brancher sur le système de tir pour faire passer le courant, le retour de celui-ci pouvant être assuré par l'étui, la douille ou le corps de la cartouche ou de la munition. Bien que cela ne soit pas décrit en détail dans ce document antérieur, ce contact doit comporter une partie logée dans la munition et une partie complémentaire disposée dans le système de tir, un dispositif élastique étant nécessaire pour garantir un bon contact électrique et pour s'affranchir des contraintes de positionnement géométriques de la cartouche par rapport au système de tir, lorsque la munition est mise en place par rapport à ce dernier. By EP 0 798 535, it is known to communicate an initiator of a ammunition with a weapon firing system via a firing circuit in which is inserted a connection which galvanically establishes electrical continuity between the weapon and the ammunition. For this purpose, the electric initiator comprises at least one contact to connect to the firing system to pass the current, the return of this can be ensured by the case, the socket or the body of the cartridge or of the ammunition. Although not described in detail in this prior document, this contact must include a part housed in the ammunition and a part complementary disposed in the firing system, an elastic device being necessary to guarantee good electrical contact and to overcome constraints geometric positioning of the cartridge relative to the firing system, when the ammunition is placed relative to the latter.

Cette liaison électrique entre le système de tir et la munition ou les cartouches de la munition est fragile et a donc une influence défavorable sur la fiabilité. En particulier, elle est très sensible à l'humidité et à la pression ambiante de sorte qu'en particulier, elle n'autorise pas toutes les attitudes dans l'espace de la munition par exemple par temps de pluie. Au moment de sa mise en place, il faut en outre veiller à ce que les parties complémentaires du contact soient correctement assemblées, ce qui impose à l'opérateur une attention particulière.This electrical connection between the firing system and the ammunition or the cartridges ammunition is fragile and therefore has an unfavorable influence on reliability. In particular, it is very sensitive to humidity and ambient pressure so that particular, it does not allow all attitudes in the space of ammunition by example in rainy weather. At the time of its installation, it is also necessary to take care to that the complementary parts of the contact are correctly assembled, this which requires special attention from the operator.

Il est encore à noter que dans le brevet européen précité, l'initiateur comporte un transformateur de courant dont le primaire fait partie du circuit de mise à feu et dont le secondaire transmet à l'électronique de cet initiateur l'énergie nécessaire à son fonctionnement, ainsi que les signaux porteurs de l'information à communiquer. Ce transformateur de courant est situé entièrement dans la cartouche (ou dans la munition).It should also be noted that in the aforementioned European patent, the initiator includes a current transformer whose primary is part of the ignition circuit and whose secondary transmits to the electronics of this initiator the energy necessary to its operation, as well as the signals carrying the information to be communicated. This current transformer is located entirely in the cartridge (or in the ammunition).

L'invention a pour but de fournir un dispositif de couplage entre un système de tir et sa munition permettant de remédier aux inconvénients de la technique antérieure.The object of the invention is to provide a coupling device between a shooting and its ammunition to overcome the drawbacks of the technique earlier.

L'invention a donc pour objet un dispositif de couplage destiné à la transmission d'information et d'énergie d'allumage entre un système de tir et une munition comprenant au moins une unité pyrotechnique placée contre une surface d'appui d'une culasse appartenant au système de tir, le dispositif de couplage comprenant, pour permettre le transfert de ladite information et de ladite énergie, au moins une première partie de couplage logée dans ladite surface de la culasse et au moins une seconde partie de couplage logée dans ladite unité pyrotechnique, caractérisé en ce que lesdites première et deuxième parties de couplage sont respectivement en relation de couplage d'énergie entre elles en étant galvaniquement distinctes l'une de l'autre.The subject of the invention is therefore a coupling device intended for the transmission of information and ignition energy between a firing system and a ammunition comprising at least one pyrotechnic unit placed against a surface support of a breech belonging to the firing system, the coupling device comprising, to allow the transfer of said information and said energy, to at least a first coupling part housed in said surface of the cylinder head and at at least a second coupling part housed in said pyrotechnic unit, characterized in that said first and second coupling parts are respectively in relation of energy coupling between them by being galvanically separate from each other.

Grâce à ces caractéristiques, l'unité pyrotechnique de la munition peut être placée simplement contre la surface d'appui de la culasse sans engagement mécanique des parties de couplage. Par ailleurs, les parties de couplage pouvant être incorporées respectivement dans la culasse et dans l'unité pyrotechnique, il devient aisé d'assurer une étanchéité parfaite de la culasse et de l'unité pyrotechnique facilitant l'emploi de l'ensemble système de tir/munition dans des conditions sévères d'humidité et/ou de pression. Enfin, aucune partie mécanique élastique n'est désormais nécessaire.Thanks to these characteristics, the pyrotechnic unit of the ammunition can be simply placed against the bearing surface of the cylinder head without engagement mechanics of the coupling parts. Furthermore, the coupling parts which can be incorporated respectively in the cylinder head and in the pyrotechnic unit, it becomes easy to ensure perfect sealing of the cylinder head and the unit pyrotechnics facilitating the use of the firing / ammunition system assembly in severe humidity and / or pressure conditions. Finally, no mechanical part elastic is no longer necessary.

Selon d'autres particularités avantageuses de l'invention,

  • lesdites première et seconde parties de couplage sont couplées entre elles par induction électromagnétique;
  • lesdites première et seconde parties de couplage sont respectivement le primaire et le secondaire d'un transformateur de courant;
  • chacune desdites première et seconde parties de couplage comprend une bobine disposée dans un demi-circuit magnétique affleurant la surface de ladite culasse, respectivement la surface de ladite unité pyrotechnique en regard de ladite culasse, lorsqu'elle est en appui sur la surface de celle-ci, position dans laquelle les demi-circuits magnétiques forment un circuit magnétique fermé sur lui-même;
  • chaque bobine est formée d'une pluralité de spires formant les pistes conductrices d'un circuit imprimé multi-couches, reçu dans ladite culasse;
  • lesdites première et seconde parties de couplage sont couplées entre elles par voie optique;
  • le dispositif de couplage étant destiné à établir un couplage entre un système de tir et une munition comprenant une pluralité de cartouches formant unités pyrotechniques placées les unes à côté des autres contre ladite surface d'appui, les cartouches pouvant se présenter sous différentes versions occupant sur ladite surface des aires de différentes formes et/ou dimensions, le dispositif de couplage comprenant une pluralité de premières parties de couplage, une seconde partie de couplage étant logée dans chacune desdites cartouches, lesdites premières parties de couplage sont distribuées dans ladite surface d'appui de manière à former un sous-ensemble de premières parties de couplage pour chaque version desdites cartouches dans lequel, lorsque lesdites cartouches de cette version sont placées dans ledit container, chacune des premières parties de couplage de ce sous-ensemble se trouve en position de couplage avec une seconde partie de couplage d'une cartouche;
  • lesdites cartouches se présentant avec une base circulaire de trois diamètres normalisés, lesdites premières parties de couplage sont distribuées dans ladite culasse par groupes contigus de cinq, en formant une disposition par rangées en quinconce;
  • lesdites cartouches se présentant avec une base carrée ou une base rectangulaire, double de la base carrée, lesdites premières parties de couplage sont distribuées dans ladite surface d'appui avec un pas égal au côté de ladite base carrée selon une matrice X-Y.
According to other advantageous features of the invention,
  • said first and second coupling parts are coupled together by electromagnetic induction;
  • said first and second coupling parts are respectively the primary and the secondary of a current transformer;
  • each of said first and second coupling parts comprises a coil disposed in a magnetic half-circuit flush with the surface of said cylinder head, respectively the surface of said pyrotechnic unit opposite said cylinder head, when it is supported on the surface of this ci, position in which the magnetic half-circuits form a magnetic circuit closed on itself;
  • each coil is formed of a plurality of turns forming the conductive tracks of a multi-layer printed circuit, received in said cylinder head;
  • said first and second coupling parts are coupled together optically;
  • the coupling device being intended to establish a coupling between a firing system and an ammunition comprising a plurality of cartridges forming pyrotechnic units placed one beside the other against said bearing surface, the cartridges being able to be presented in different versions occupying on said surface of areas of different shapes and / or dimensions, the coupling device comprising a plurality of first coupling parts, a second coupling part being housed in each of said cartridges, said first coupling parts are distributed in said bearing surface so as to form a subset of first coupling parts for each version of said cartridges in which, when said cartridges of this version are placed in said container, each of the first coupling parts of this subassembly is in the coupling position with a second coupling part of a cartridge;
  • said cartridges having a circular base of three standardized diameters, said first coupling parts are distributed in said cylinder head in contiguous groups of five, forming an arrangement in staggered rows;
  • said cartridges having a square base or a rectangular base, double the square base, said first coupling parts are distributed in said bearing surface with a pitch equal to the side of said square base according to an XY matrix.

L'invention a également pour objet un système de leurrage avec une munition à cartouche multiple comprenant un dispositif de couplage tel que défini ci-dessus dans sa version comprenant une pluralité de premières parties de couplage distribuées dans ladite surface d'appui et de secondes parties de couplage placées respectivement dans lesdites cartouches.The invention also relates to a decoy system with ammunition with multiple cartridge comprising a coupling device as defined above in its version comprising a plurality of first coupling parts distributed in said bearing surface and second coupling parts placed respectively in said cartridges.

D'autres caractéristiques et avantages de la présente invention apparaítront au cours de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels:

  • la figure 1 est une vue en élévation et en coupe d'une munition de leurrage placée sur la culasse d'un système de tir, cette vue montrant un dispositif de couplage selon le mode de réalisation préféré de l'invention, la vue étant prise selon la ligne I-I de la figure 3;
  • la figure 2 est une vue en plan d'une partie de la surface d'appui montrant plus en détail des primaires de quelques dispositifs de couplage selon l'invention;
  • la figure 3 est une vue schématique en plan et à plus petite échelle que les figures 1 et 2, de la surface d'appui de la culasse montrant comment peuvent être disposées dans la munition différentes versions normalisées de cartouches, chacune pouvant être desservie par un dispositif de couplage selon l'invention;
  • la figure 4 représente par plusieurs vues schématiques d'un mode de bobinage des bobines d'un dispositif de couplage de type inductif selon l'invention; et
  • la figure 5 montre un autre mode de bobinage possible d'un dispositif de couplage de type inductif.
Other characteristics and advantages of the present invention will become apparent during the description which follows, given solely by way of example and made with reference to the appended drawings in which:
  • Figure 1 is an elevational and sectional view of a decoy ammunition placed on the breech of a firing system, this view showing a coupling device according to the preferred embodiment of the invention, the view being taken along line II of Figure 3;
  • Figure 2 is a plan view of a portion of the bearing surface showing in more detail the primaries of some coupling devices according to the invention;
  • Figure 3 is a schematic plan view and on a smaller scale than Figures 1 and 2, of the bearing surface of the breech showing how can be arranged in the ammunition different standard versions of cartridges, each of which can be served by a coupling device according to the invention;
  • FIG. 4 represents by several schematic views of a mode of winding of the coils of an inductive type coupling device according to the invention; and
  • Figure 5 shows another possible winding mode of an inductive type coupling device.

L'exemple de réalisation de l'invention qui va être décrit concerne une munition pour lance-leurres. Toutefois, l'invention peut s'appliquer d'une façon plus générale à tout ensemble d'une arme et d'une munition, cette dernière pouvant comporter une ou plusieurs cartouches, étant entendu qu'une munition pour lance-leurres comprend dans la plupart des cas une pluralité de cartouches.The embodiment of the invention which will be described relates to a ammunition for decoy launchers. However, the invention can be applied in a more general to any set of a weapon and ammunition, the latter being have one or more cartridges, it being understood that a munition for decoy launchers in most cases includes a plurality of cartridges.

La figure 1 montre une telle cartouche désignée par la référence 1. Elle est placée dans un conteneur 2 contre la surface d'appui 3 d'une culasse 4 faisant partie d'un système de tir 5 comprenant une partie mécanique 5a et un dispositif électronique de commande et d'allumage 5b. La cartouche 1 comprend notamment un initiateur 6 de la charge pyrotechnique (non dessinée) de la cartouche 1. Le système de tir 5 peut être monté sur la structure d'un aéronef A par exemple. FIG. 1 shows such a cartridge designated by the reference 1. It is placed in a container 2 against the bearing surface 3 of a cylinder head 4 forming part a firing system 5 comprising a mechanical part 5a and a device control and ignition electronics 5b. The cartridge 1 includes in particular an initiator 6 of the pyrotechnic charge (not drawn) of the cartridge 1. The firing system 5 can be mounted on the structure of an aircraft A for example.

L'électronique 5b du système de tir 5 et celle de l'initiateur 6 peuvent être conçues conformément à la description du brevet européen précité. Elles ne sont donc pas décrites en détail. On rappellera cependant que l'électronique 5b est capable d'envoyer à l'initiateur 6 un courant découpé avec un rapport cyclique et une fréquence correspondant aux données à transmettre à l'initiateur 6. L'électronique 5b est également capable d'envoyer à l'initiateur une impulsion d'allumage pour mettre à feu la cartouche 1. Par ailleurs, de préférence, l'électronique de l'initiateur 6 peut renvoyer de l'information sous forme d'impulsions au système de tir, notamment pour lui faire connaítre son statut.The electronics 5b of the firing system 5 and that of the initiator 6 can be designed in accordance with the description of the aforementioned European patent. They are not therefore not described in detail. It will be recalled, however, that the electronics 5b is capable of sending to initiator 6 a chopped current with a duty cycle and a frequency corresponding to the data to be transmitted to the initiator 6. The electronics 5b is also able to send the initiator an ignition pulse to bring fire the cartridge 1. Furthermore, preferably, the electronics of the initiator 6 can return information in the form of pulses to the firing system, in particular for let him know his status.

Entre le système de tir 5 et l'initiateur 6 de la cartouche est interposé un dispositif de couplage selon l'invention désigné globalement par la référence 7.Between the firing system 5 and the initiator 6 of the cartridge is interposed a coupling device according to the invention generally designated by the reference 7.

Ce dispositif de couplage 7 comprend une première partie de couplage 8 logée dans l'embase 4 du système de tir 5 et affleurant la surface d'appui 3. Il comprend également une seconde partie de couplage 9 logée dans la partie inférieure de la cartouche 1 en affleurant sa surface inférieure, c'est à dire celle qui est destinée à venir en contact avec la surface d'appui 3. On notera que le terme "inférieur" est utilisé ici pour la commodité de la description, la munition pouvant en principe être mise en oeuvre dans une position quelconque dans l'espace.This coupling device 7 comprises a first coupling part 8 housed in the base 4 of the firing system 5 and flush with the support surface 3. It also includes a second coupling part 9 housed in the part lower part of the cartridge 1 by being flush with its lower surface, that is to say that which is intended to come into contact with the bearing surface 3. It will be noted that the term "lower" is used here for the convenience of description, the munition being able to principle be implemented in any position in space.

Selon l'invention, la cartouche 1 est couplée au système de tir 5 sans aucun contact galvanique entre eux. En d'autres termes, la cartouche 1 est simplement posée sur la surface d'appui 3 et maintenue dans le container 2 de façon à être bloquée seulement latéralement dans celui-ci (par des moyens qui n'ont pas été représentés).According to the invention, the cartridge 1 is coupled to the firing system 5 without any galvanic contact between them. In other words, cartridge 1 is simply placed on the support surface 3 and held in the container 2 so as to be blocked only laterally in it (by means which have not been shown).

Dans le mode de réalisation préféré de l'invention, le dispositif de couplage 7 est du type inductif. Cependant, pour communiquer entre eux, la cartouche 1 et le système de tir 5 peuvent également utiliser un dispositif de couplage de type électro-optique. Dans ce cas, il peut comporter au moins un coupleur optique bidirectionnel dont une première partie est disposée dans le système de tir 3 et la deuxième dans la cartouche 1. De tels coupleurs bidirectionnels sont disponibles dans le commerce et ne nécessitent donc pas de description détaillée ici. On notera cependant, qu'il est préférable d'utiliser des coupleurs à laser afin de pouvoir transmettre suffisamment de puissance vers l'initiateur 6 durant l'allumage de la cartouche 1.In the preferred embodiment of the invention, the coupling device 7 is of the inductive type. However, to communicate with each other, cartridge 1 and the 5 firing system can also use an electro-optical coupling device. In this case, it may include at least one bidirectional optical coupler a first part of which is arranged in the firing system 3 and the second part in the cartridge 1. Such bidirectional couplers are commercially available and therefore do not require a detailed description here. Note, however, that it is better to use laser couplers in order to transmit enough power to the initiator 6 during the ignition of the cartridge 1.

Dans le cas où le dispositif de couplage 7 est de type inductif, la première partie de couplage 8 (appelé "primaire" ci-après) comprend un bloc 10 en un matériau magnétique, la ferrite étant un matériau préféré. Ce bloc 10 constitue un demi-circuit magnétique. Il est logé dans une cavité 11 de la culasse 4 et dans l'exemple décrit, il présente une forme générale cylindrique. Une rainure annulaire centrale 12 y est prévue à la face tournée vers la surface d'appui 3. Une bobine 13 est placée dans la rainure 12. Elle est connectée à l'électronique 5b du système de tir 5.In the case where the coupling device 7 is of the inductive type, the first coupling part 8 (hereinafter called "primary") comprises a block 10 in one magnetic material, ferrite being a preferred material. This block 10 constitutes a magnetic half-circuit. It is housed in a cavity 11 of the cylinder head 4 and in the example described, it has a generally cylindrical shape. An annular groove central 12 is provided on the side facing the bearing surface 3. A coil 13 is placed in the groove 12. It is connected to the electronics 5b of the firing system 5.

La seconde partie de couplage 9 (appelé ci-après "secondaire") du dispositif de couplage 7 comprend un bloc 14 en un matériau magnétique tel que la ferrite, et logé dans une cavité 15 de la cartouche 1. Le bloc 14 présente une forme générale cylindrique et une rainure centrale annulaire 16 y est pratiquée. Dans cette rainure 16 est placée une bobine 17. Elle est reliée à l'électronique de l'initiateur 6. Le bloc 14 constitue un demi-circuit magnétique, complémentaire à celui du système de tir 5, lorsque la cartouche 1 est correctement placée dans le container 2.The second coupling part 9 (hereinafter called "secondary") of the device coupling 7 comprises a block 14 made of a magnetic material such as ferrite, and housed in a cavity 15 of the cartridge 1. The block 14 has a general shape cylindrical and an annular central groove 16 is formed there. In this groove 16 a coil 17 is placed. It is connected to the electronics of the initiator 6. Block 14 constitutes a magnetic half-circuit, complementary to that of the firing system 5, when the cartridge 1 is correctly placed in the container 2.

Dans la description qui précède, on a supposé que la munition coopérant avec le système de tir 5 ne comporte qu'une seule cartouche 1 reçue dans un container 2 dont les dimensions sont ajustées à cette seule cartouche (contrairement à ce qui est représentée à la figure 1). Comme cette cartouche 1 ne possède aucune liaison électrique galvanique avec la culasse 4 pour communiquer avec le système de tir 5, la fiabilité est nettement accrue et l'étanchéité des parties électroniques fragiles tant de la cartouche 1 que du système de tir 3 peut facilement être assurée. Par ailleurs, la cartouche étant simplement en appui contre la surface d'appui 3 du système de tir 5, l'association d'une cartouche 1 avec ce dernier est une opération qui ne demande aucune précaution particulière.In the above description, it has been assumed that the ammunition cooperating with the firing system 5 has only one cartridge 1 received in a container 2 whose dimensions are adjusted to this single cartridge (unlike what is shown in Figure 1). As this cartridge 1 has no connection electric galvanic with the cylinder head 4 to communicate with the firing system 5, reliability is clearly increased and the sealing of fragile electronic parts is cartridge 1 as the firing system 3 can easily be ensured. Otherwise, the cartridge being simply in abutment against the bearing surface 3 of the firing system 5, the association of a cartridge 1 with the latter is an operation which does not require no special precautions.

Pour pouvoir assurer une communication fiable et efficace, les bobines 13 et 17, comme les blocs 10 et 14 doivent être coaxiaux, ce dont il résulte un bon couplage inductif entre le primaire 8 et le secondaire 9. Il est également important que le primaire et le secondaire affleurent respectivement les surfaces en regard de la cartouche 1 et de la culasse 4 afin de réduire à une valeur négligeable l'entrefer entre les deux blocs magnétiques 10 et 14. Cependant, ils n'ont pas à être centrés par rapport au corps de la cartouche 1.To be able to ensure reliable and efficient communication, the coils 13 and 17, as blocks 10 and 14 must be coaxial, which results in a good inductive coupling between primary 8 and secondary 9. It is also important that the primary and secondary are respectively flush with the surfaces opposite cartridge 1 and cylinder head 4 in order to reduce the air gap to a negligible value between the two magnetic blocks 10 and 14. However, they do not have to be centered relative to the body of the cartridge 1.

Dans le cas où l'invention est appliquée à un lance-leurres, la munition utilisée comprend une pluralité de cartouches 1 et le container 2 présente une forme adaptée pour loger ces cartouches. Le système de tir 3 peut alors être agencé pour les mettre à feu séquentiellement selon une procédure connue des spécialistes.In the case where the invention is applied to a decoy launcher, the ammunition used includes a plurality of cartridges 1 and the container 2 has a suitable shape to house these cartridges. The firing system 3 can then be arranged to put them fire sequentially according to a procedure known to specialists.

Il est à noter que les lance-leurres utilisent en général des cartouches ayant un dimensionnement qui est désormais standardisé selon essentiellement deux formes. Ainsi, on rencontre des cartouches de forme générale cylindrique à base circulaire. Ces cartouches à base circulaire sont normalisées avec des diamètres de 19 mm, 40 mm ou 60 mm, et une hauteur égale pour toutes ces versions de 150 mm. L'autre forme présente un corps à base carrée ou rectangulaire, respectivement d'une aire d'un pouce carré ou 1 x 2 pouces carrés. Dans ce cas, la hauteur est de huit pouces.It should be noted that decoy launchers generally use cartridges having a dimensioning which is now standardized according to essentially two forms. Thus, one meets cartridges of generally cylindrical shape based circular. These circular-based cartridges are standardized with diameters of 19 mm, 40 mm or 60 mm, and an equal height for all these versions of 150 mm. The other shape has a body with a square or rectangular base, respectively an area of one square inch or 1 x 2 square inches. In this case, the height is eight inches.

Selon d'autres caractéristiques essentielles et avantageuses de l'invention, le dispositif de couplage qui vient d'être décrit, qu'il soit de type inductif ou de type électro-optique, permet de n'utiliser pour chacun des types de formes mentionnées qu'un seul type d'association d'un système de tir et d'une munition à cartouches multiples et ce malgré la différentiation de dimensions standardisées que l'on puisse trouver dans les deux types de formes.According to other essential and advantageous features of the invention, the coupling device which has just been described, whether it is of the inductive type or of the type electro-optic, allows not to use for each of the types of forms mentioned only one type of combination of a firing system and a cartridge ammunition despite the differentiation of standardized dimensions that we can find in both types of shapes.

Les figures 1 à 3 illustrent cette faculté d'adaptation dimensionnelle d'un réseau de dispositifs de couplage suivant l'invention pour ce qui concerne les cartouches à base circulaire.Figures 1 to 3 illustrate this dimensional adaptability of a network of coupling devices according to the invention as regards the circular base cartridges.

On voit que le réseau de dispositifs de couplage 7 comprend dans le système de tir 5 une pluralité de primaires 8 agencés en réseau. Ces primaires 8 sont distribués dans ce réseau de telle manière qu'ils forment un sous-ensemble pour chaque version dimensionnelle normalisée des cartouches 1 et que, lorsque les cartouches sont placées dans le container 2, les primaires 8 d'un tel sous-ensemble se trouvent en position de couplage inductif (ou le cas échéant électro-optique) avec un secondaire 9 d'une cartouche 1.It can be seen that the network of coupling devices 7 comprises in the system firing 5 a plurality of primaries 8 arranged in a network. These 8 primaries are distributed in this network in such a way that they form a subset for each standardized dimensional version of the cartridges 1 and that, when the cartridges are placed in container 2, the primaries 8 of such a sub-assembly are in the position of inductive coupling (or if necessary electro-optical) with a secondary 9 of a cartridge 1.

Chacun des primaires 8 de ce réseau est conçu de la façon déjà décrite précédemment, cependant que les cavités 11 sont juxtaposées et séparées par des évidements 18 dans lesquels passent des interconnexions 19 entre les bobines 13. Celles-ci et ces interconnexions 19 sont réalisées de préférence sous la forme d'un circuit imprimé multicouches, les bornes des bobines 13 passant dans des encoches 20 (figure 2) pratiquées dans les blocs 10 en matériau magnétique.Each of the primaries 8 of this network is designed in the manner already described previously, while the cavities 11 are juxtaposed and separated by recesses 18 in which interconnections 19 pass between the coils 13. These and these interconnections 19 are preferably made in the form of a multilayer printed circuit, the terminals of the coils 13 passing through notches 20 (Figure 2) made in the blocks 10 of magnetic material.

Les cartouches du mode de réalisation décrit étant à base circulaire et compte tenu du fait que trois dimensions de telles cartouches sont normalisées, la distribution des primaires 8 est celle représentée à la figure 3. Dans cette représentation, les cercles A, B et C indiquent respectivement les périmètres des cartouches de 19 mm, 40 mm et 60 mm de diamètre devant être accueillies dans le container 2 et les cercles D hachurés les périmètres des primaires 8 placés dans la culasse 4. Compte tenu des dimensions choisies du container 2 dans cet exemple, on prévoit 90 primaires 8, agencés en quinconce par groupe de cinq; ils sont numérotés de 1 à 90 sur la figure 3.The cartridges of the embodiment described being of circular base and account given that three dimensions of such cartridges are standardized, the distribution of the primaries 8 is that shown in FIG. 3. In this representation, the circles A, B and C respectively indicate the perimeters of the 19 mm cartridges, 40 mm and 60 mm in diameter to be accommodated in container 2 and the shaded circles D the perimeters of the primaries 8 placed in the cylinder head 4. Account given the chosen dimensions of container 2 in this example, 90 primaries 8, arranged in staggered rows in groups of five; they are numbered from 1 to 90 in figure 3.

Dans ces conditions, les trois sous-ensembles suivants de primaires 8 peuvent être mis en oeuvre en fonction des diamètres respectifs des cartouches: sous-ensemble n° primaires diamètre 1 1 à 72 19mm 2 73 à 90 40 mm 3 14, 17, 20, 53, 56, 59 60 mm Under these conditions, the following three subsets of primers 8 can be used as a function of the respective diameters of the cartridges: subset primary numbers diameter 1 1 to 72 19mm 2 73 to 90 40 mm 3 14, 17, 20, 53, 56, 59 60 mm

Il est à noter que cette distribution des cartouches et l'agencement des dispositifs de couplage permet un positionnement quelconque des cartouches par rapport à leur axe longitudinal et une pose par simple appui contre la surface d'appui 3, ce qui facilite considérablement la préparation des munitions.It should be noted that this distribution of cartridges and the arrangement of coupling devices allows any positioning of the cartridges by relative to their longitudinal axis and laying by simple pressing against the bearing surface 3, which considerably facilitates the preparation of ammunition.

On remarquera également que le dispositif de couplage qu'il soit réalisé en un seul exemplaire ou en réseau, peut facilement être rendu étanche pour ce qui concerne ces deux parties de couplage 8 et 9, qu'elles soient de type inductif ou électro-optique.It will also be noted that the coupling device that it is made in a single or networked, can easily be waterproofed for relates to these two coupling parts 8 and 9, whether they are of the inductive type or electro-optics.

Les figures 4 et 5 montrent deux variantes possibles de réalisation des bobines d'un dispositif de couplage selon l'invention.Figures 4 and 5 show two possible embodiments of the coils of a coupling device according to the invention.

Les spires de ces bobines sont réalisées sous la forme de pistes conductrices d'un circuit imprimé multicouches 21 les pistes conductrices étant convenablement connectées les unes aux autres pour l'obtention d'un bobinage à l'aide de traversées conductrices 22 passant à travers les couches isolantes du circuit imprimé (voir figures 4 et 5 en a)).The turns of these coils are made in the form of conductive tracks of a multilayer printed circuit 21 the conductive tracks being suitably connected to each other to obtain a winding using bushings conductors 22 passing through the insulating layers of the printed circuit (see Figures 4 and 5 in a)).

Dans la variante de la figure 4, deux jeux de pistes conductrices 23 et 24 sont disposés de façon imbriquée. Chaque piste est alors formée d'une seule spire, les spires de deux pistes superposées étant inversées l'une par rapport à l'autre. La section des pistes est déterminée de telle façon qu'un courant relativement important puisse y circuler. On peut alors se contenter d'un nombre de spires relativement faible pour obtenir le nombre d'ampères-tours nécessaires à un bon couplage inductif (figure 4 en b) et c).In the variant of FIG. 4, two sets of conductive tracks 23 and 24 are nested. Each track is then formed of a single turn, the turns of two superimposed tracks being reversed with respect to each other. The track section is determined so that a relatively large current can circulate there. We can then be satisfied with a relatively large number of turns low to obtain the number of ampere-turns necessary for a good inductive coupling (Figure 4 in b) and c).

Dans la variante de la figure 5, chacune des pistes 25 et 26 superposées est formée d'une spirale à plusieurs tours qui sont enroulées en sens inverse dans les pistes superposées. Des traversées 22 connectent entre elles les pistes des différentes couches 25 et 26.In the variant of FIG. 5, each of the superimposed tracks 25 and 26 is formed of a spiral with several turns which are wound in opposite directions in the overlapping tracks. Crossings 22 connect the tracks of the different layers 25 and 26.

Lorsque les cartouches ont une base carrée ou rectangulaire, la distribution des primaires 8 dans la surface d'appui 3 sera faite avec un pas entre eux égal à la longueur d'un côté d'une cartouche à base carrée selon une matrice X-Y (pas d'un pouce). De la sorte, la munition pourra accueillir les deux dimensions de cartouches qu'elles soient à base carré ou à base rectangulaire.When the cartridges have a square or rectangular base, the distribution primaries 8 in the bearing surface 3 will be made with a pitch between them equal to the length of one side of a square-based cartridge in an X-Y matrix (not one thumb). In this way, the ammunition can accommodate the two dimensions of cartridges whether square or rectangular.

Claims (10)

Dispositif de couplage (7) destiné à la transmission d'information et d'énergie d'allumage entre un système de tir (5) et une munition comprenant au moins une unité pyrotechnique (1) placée contre une surface d'appui (3) d'une culasse (4) appartenant au système de tir (5), le dispositif de couplage (7) comprenant, pour permettre le transfert de ladite information et de ladite énergie, au moins une première partie de couplage (8) logée dans ladite surface de la culasse et au moins une seconde partie de couplage (9) logée dans ladite unité pyrotechnique (1),
   caractérisé en ce que lesdites première et deuxième parties de couplage (8, 9) sont respectivement en relation de couplage d'énergie entre elles en étant galvaniquement distinctes l'une de l'autre.Coupling device (7) intended for the transmission of information and ignition energy between a firing system (5) and a munition comprising at least one pyrotechnic unit (1) placed against a bearing surface (3) a cylinder head (4) belonging to the firing system (5), the coupling device (7) comprising, to allow the transfer of said information and said energy, at least a first coupling part (8) housed in said surface of the cylinder head and at least a second coupling part (9) housed in said pyrotechnic unit (1),
characterized in that said first and second coupling parts (8, 9) are respectively in energy coupling relation to each other by being galvanically distinct from each other. Dispositif de couplage suivant la revendication 1, caractérisé en ce que lesdites première et seconde parties de couplage (8, 9) sont couplées entre elles par induction électromagnétique.Coupling device according to claim 1, characterized in that said first and second coupling parts (8, 9) are coupled together by electromagnetic induction. Dispositif de couplage suivant la revendication 2, caractérisé en ce que lesdites première et seconde parties de couplage (8, 9) sont respectivement le primaire et le secondaire d'un transformateur de courant.Coupling device according to claim 2, characterized in that said first and second coupling parts (8, 9) are respectively the primary and the secondary of a current transformer. Dispositif de couplage suivant l'une quelconque des revendications 2 et 3, caractérisé en ce que chacune desdites première et seconde parties de couplage (8, 9) comprend une bobine (13, 17) disposée dans un demi-circuit magnétique (10, 14) affleurant la surface (3) de ladite culasse (4), respectivement la surface de ladite unité pyrotechnique (1) en regard de ladite culasse, lorsqu'elle est en appui sur la surface de celle-ci, position dans laquelle les demi-circuits magnétiques (10, 14) forment un circuit magnétique fermé sur lui-même.Coupling device according to either of Claims 2 and 3, characterized in that each of the said first and second coupling parts (8, 9) comprises a coil (13, 17) arranged in a magnetic half-circuit (10, 14 ) flush with the surface (3) of said cylinder head (4), respectively the surface of said pyrotechnic unit (1) facing said cylinder head, when it is supported on the surface thereof, position in which the half magnetic circuits (10, 14) form a closed magnetic circuit. Dispositif de couplage suivant la revendication 4, caractérisé en ce chaque bobine (13, 17) comprend une pluralité de spires (23, 24; 25, 26) formant les pistes conductrices (22) d'un circuit imprimé multi-couches (21), reçue dans ladite culasse (4).Coupling device according to claim 4, characterized in that each coil (13, 17) comprises a plurality of turns (23, 24; 25, 26) forming the conductive tracks (22) of a multi-layer printed circuit (21) , received in said cylinder head (4). Dispositif de couplage suivant la revendication 1, caractérisé en ce que lesdites première et seconde parties de couplage sont couplées entre elles par voie optique.Coupling device according to claim 1, characterized in that said first and second coupling parts are coupled together optically. Dispositif de couplage suivant l'une quelconque des revendications 1 à 6, établissant un couplage entre un système de tir (1) et une munition comprenant une pluralité de cartouches (1) formant unités pyrotechniques placées les unes à côté des autres contre ladite surface d'appui (3), les cartouches (1) pouvant se présenter sous différentes versions occupant sur ladite surface des aires de différentes formes et/ou dimensions, le dispositif de couplage comprenant une pluralité de premières parties de couplage (8), une seconde partie (9) de couplage étant logée dans chacune desdites cartouches (1),
   caractérisé en ce que lesdites premières parties de couplage (8) sont distribuées dans ladite surface d'appui (3) de manière à former un sous-ensemble de premières parties de couplage pour chaque version (A, B, C) desdites cartouches dans lequel, lorsque lesdites cartouches de cette version sont placées dans ledit container, chacune des premières parties de couplage (8) de ce sous-ensemble se trouve en position de couplage avec une seconde partie de couplage (9) d'une cartouche.Coupling device according to any one of claims 1 to 6, establishing a coupling between a firing system (1) and an ammunition comprising a plurality of cartridges (1) forming pyrotechnic units placed one beside the other against said surface d support (3), the cartridges (1) being able to come in different versions occupying on said surface areas of different shapes and / or dimensions, the coupling device comprising a plurality of first coupling parts (8), a second part (9) of coupling being housed in each of said cartridges (1),
characterized in that said first coupling parts (8) are distributed in said bearing surface (3) so as to form a subset of first coupling parts for each version (A, B, C) of said cartridges in which , when said cartridges of this version are placed in said container, each of the first coupling parts (8) of this subassembly is in the coupling position with a second coupling part (9) of a cartridge. Dispositif de couplage selon la revendication 7, caractérisé en ce que, lesdites cartouches se présentant avec une base circulaire de trois diamètres normalisés, lesdites premières parties de couplage (8) sont distribuées dans ladite culasse (4) par groupes contigus de cinq, en formant une disposition par rangées en quinconce.Coupling device according to claim 7, characterized in that , said cartridges having a circular base of three standardized diameters, said first coupling parts (8) are distributed in said cylinder head (4) in contiguous groups of five, forming a staggered row arrangement. Dispositif de couplage selon la revendication 7, caractérisé en ce que lesdites cartouches (1) se présentant avec une base carrée ou une base rectangulaire, double de la base carrée, lesdites premières parties de couplage (8) sont distribuées dans ladite surface d'appui (3) avec un pas égal au côté de ladite base carrée selon une matrice X-Y.Coupling device according to Claim 7, characterized in that the said cartridges (1) having a square base or a rectangular base, double the square base, the said first coupling parts (8) are distributed in the said bearing surface (3) with a pitch equal to the side of said square base according to an XY matrix. Système de leurrage comprenant un système de tir et une munition comportant une pluralité de cartouches, caractérisé en ce qu'il est doté d'un dispositif de couplage suivant l'une quelconque des revendications 7 à 9.A decoy system comprising a firing system and an ammunition comprising a plurality of cartridges, characterized in that it is provided with a coupling device according to any one of claims 7 to 9.
EP04290520A 2003-02-28 2004-02-26 Firing system with a device for data transmission to the round Expired - Lifetime EP1464916B1 (en)

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FR0302477A FR2851817B1 (en) 2003-02-28 2003-02-28 COUPLING DEVICE BETWEEN A SHOOTING SYSTEM AND A MUNITION
FR0302477 2003-02-28

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EP1464916B1 (en) 2011-04-06
FR2851817A1 (en) 2004-09-03
DE602004032083D1 (en) 2011-05-19
FR2851817B1 (en) 2014-08-15

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