EP0559547A1 - Furtive projectile launcher - Google Patents

Furtive projectile launcher Download PDF

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Publication number
EP0559547A1
EP0559547A1 EP93400527A EP93400527A EP0559547A1 EP 0559547 A1 EP0559547 A1 EP 0559547A1 EP 93400527 A EP93400527 A EP 93400527A EP 93400527 A EP93400527 A EP 93400527A EP 0559547 A1 EP0559547 A1 EP 0559547A1
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EP
European Patent Office
Prior art keywords
projectile
tube
launching
launcher according
launcher
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93400527A
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German (de)
French (fr)
Inventor
Alain Bourel
René Thouron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Brandt Armements SA
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Thomson Brandt Armements SA
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Filing date
Publication date
Application filed by Thomson Brandt Armements SA filed Critical Thomson Brandt Armements SA
Publication of EP0559547A1 publication Critical patent/EP0559547A1/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B7/00—Spring guns

Definitions

  • the present invention relates to a stealth projectile launcher.
  • powder launchers are generally used which produce a flame when the projectile leaves. This flame makes it easy to identify the launch site, and therefore to easily direct the enemy's fire in order to destroy the launcher.
  • gas launching devices are known which are much more discreet, but require the transport to the launch site of heavy and bulky gas cylinders.
  • the subject of the present invention is a device for launching projectiles which is stealthy, visually and acoustically, very inexpensive, light and compact.
  • the projectile launching device comprises a launching base which can be orientated in deposit and / or in elevation, and which supports a launching tube comprising an energy accumulator with a launching spring which can be orientated in deposit.
  • the device described below makes it possible to launch a self-propelled projectile, guided or not, according to a fairly precise initial trajectory.
  • the projectile is launched vertically with a determined initial speed, and this without any noticeable noise or flames.
  • this projectile reaches its peak, it is tipped over and its self-propelling system is switched on to make it then follow a determined trajectory.
  • the projectile launcher making it possible to obtain said initial speed is schematically represented in FIG. 1. It comprises a base 1 provided with adjustable feet (not shown, or similar device, making it possible to orient the longitudinal axis vertically or at a determined angle) 2 of its launcher tube.
  • the base 1 supports, by means of a bearing or a bearing 3 a launching tube 4.
  • the bearing 3 makes it possible to orient the tube 4 in bearing.
  • a buffer is interposed between the tube 4 and the base 1 1A energy absorber, for example rubber.
  • the tube 4 contains, at its lower part, a device 5 for energy storage with springs.
  • the device 5 consists of a stack of Belleville washers (curved washers).
  • these Belleville washers are made of composite material (for example epoxy and reinforcement based on carbon or glass fibers, or based on KEVLAR).
  • the Belleville washers are kept compressed in the tube 4 using a locking device 6 described in more detail below with reference to FIG. 3. This compression can be carried out either in the factory during the manufacture of the base, either before use, using an appropriate mechanical, pneumatic or hydraulic device.
  • the device Lock 6 also serves to fix a projectile 7 in the tube 4.
  • the tube 4 is closed at its upper end by a cover 8.
  • the base 1 has a reference 9 allowing it to be oriented geographically with respect to the terrain on which it will be installed for shooting. For example, this marker should be oriented to the North.
  • the tube 4 also includes a mark 9A, which is for example aligned with the mark 9 in the initial position.
  • the tube 4 is rotated by the desired angular value around its axis 2.
  • the base 1 having a very precise orientation, it is therefore easy to orient the tube 4 (in rotating it around the axis 2) so that the projectile 7 is sent in the desired direction, the projectile itself having a determined orientation relative to the tube 4 (depending on the tilting impellers used, and described below) below).
  • the orientation of the tube 4 can be carried out either manually or automatically.
  • the tube 4 also carries a mark, corresponding to the direction in which the rocking of the projectile takes place (as described in more detail below).
  • the base 1 then has angular graduations on one of which it suffices to align the reference mark of the tube 4.
  • the tube 4 is driven by a motor (not shown) controlled by a servo device (not shown), and is integral with an angular measurement device connected to this servo device, which is also connected to a data input device (for example a keyboard) providing it with the desired angular value of the deposit of the 'goal.
  • the energy absorbing device 1A can be a simple rubber washer of the VlBTENE type (of density between 1.2 and 1.5 for example) which has a thickness of approximately 10 mm for a projectile weighing 10 Kg mass approximately.
  • the role of the locking device 6 shown in detail in FIG. 3 is to lock the projectile 7 in place in the tube 4, to retain the energy stored in the spring devices 5 as soon as they are compressed, and, when launching the projectile 7, to unlock the projectile and suddenly release said stored energy.
  • the device 6 comprises a tube 10 whose axis is coincident with the axis 2, which is fixed to the bottom 4A of the tube 4, and which is closed by a cover 10A at its upper end.
  • This tube 10 passes through the axial bore 11 of a retaining plate 12, the outside diameter of the tube 10 being practically equal to the diameter of the bore of the plate 11.
  • the bore 11 comprises, roughly half thickness of the plate 12, a groove 13 of semi-circular section. This groove 13 extends perpendicular to the axis 2, and the radius of its section is substantially equal to the radius of the retaining balls described below.
  • the length of the tube 10 is approximately equal to or slightly greater than the thickness of the stack of uncompressed Belleville washers 5 and of the plate 12.
  • the upper end of the tube 10 protrudes from the plate 12, and it is this end which is introduced into an axial housing 14 of corresponding dimensions formed in the lower part of the projectile 7.
  • a solid cylindrical core 16 is housed in the tube 10. Its diameter is practically equal to the inside diameter of the tube 10 in which it can move axially with gentle friction.
  • the core 16 is actuated by an axial rod 17 which is integral therewith and which passes through the bottom 4A of the tube 4.
  • the rod 17 is itself actuated, in a manner not shown, either manually or automatically, and can be locked axially in position.
  • the core 16 has at its periphery a first wide groove with flared edges 18, the depth of which is substantially equal to the radius of the locking balls 20 and the width slightly greater than twice the diameter of these balls.
  • the core 16 comprises a second flared groove 19 of the same depth as the groove 18, but of width substantially equal to the diameter of said balls.
  • These grooves 18, 19 are formed so as to be opposite the holes 10B when the core 16 is in the high unlocking position, that is to say in abutment against the cover 10A of the tube 10 and so that only the groove 18 is opposite the upper holes 10B when the core 16 is in the "medium" position.
  • Figure 3 there is shown to the left of the axis 2 the core 16 in the high position, and to the right in the middle position.
  • the core 16 is put in the high position, and the balls 20 are introduced into the corresponding holes 10B of the tube 10. Because the grooves 18 and 19 are opposite the holes 10B, the balls 20 arrive flush with the outer surface of the tube 10. They can be held in place while cocking the launcher using an appropriate paste.
  • the Belleville washers and the plate 12 are placed on which the necessary pressure is applied, and the core 16 is lowered to the middle position, for which the balls 20 of the lower holes 10B are driven by the core into the groove 13, thus locking the plate 12 in the position for which it keeps the washers 5 compressed.
  • the rod 17 can be blocked using an appropriate means, for example by a locking screw, which makes it possible to transport the launcher device with or without a projectile from the 'place where the washers 5 have been compressed with appropriate tools, and even to put the projectile in the launcher shortly before launching while keeping the washers 5 compressed (core 6 in the middle position).
  • the first phase of the trajectory of the projectile 7 is schematically represented in FIGS. 4 and 5.
  • the base 1 being adjusted in the firing position, that is to say that the axis 2 of the tube 4 is for example vertical, and the mark 9 of the base 1 as well as the mark 9A of the tube 4 are oriented geographically, for example to the North.
  • the deposit G of the target then being determined in a manner known per se, the tube 4 is rotated by the value G and it is blocked in this position (mark 9'A in the direction D of the target, in FIG. 5).
  • the rod 17 of the core 6 is pushed into the medium position to release the projectile, then into the high position to release the plate 12, which allows the washers 5 to suddenly relax and launch the projectile 7 vertically.
  • projectile 7 rises to a peak, at a height H, which is a function of the characteristics of the washers 5 and the weight of the projectile.
  • H a function of the characteristics of the washers 5 and the weight of the projectile.
  • a measuring device with which the projectile is provided triggers one or more impellers 21 arranged on the projectile and oriented so as to cause it to rock substantially around its center of gravity 22.
  • impellers for example pyrotechnic
  • the position of the projectile after rotation of 90 ° is shown in broken lines in FIG. 4.
  • the autonomous projectile propulsion device 7 is ignited, and this projectile heads in the direction D towards the designated target. .
  • the propulsion device of the projectile 7 Since the propulsion device of the projectile 7 is only ignited when this projectile is at a relatively high altitude, it is very difficult for an observer in the area of the target to determine the place of launching of the projectile , all the more that if it is based on the trajectory of the projectile after rotation of 90 °, it is brought to determine in a usual way a theoretical launching place which can be very far from the real launching place.
  • FIGS. 6 and 7 are similar to those of FIGS. 4 and 5, the difference residing in the fact that after having reached its peak, the projectile 7 performs, under the thrust of its impellers 21 'a rotation of one site angle other than 90 °.
  • the rotation S+ can for example make it possible to reach flying targets, while the rotation S ⁇ can for example make it possible to reach relatively close targets, but hidden by high obstacles (buildings, rocks) between them and the launch site. It then suffices that the apogee is at a height H greater than that of these obstacles.
  • an additional propulsion can be applied to the projectile when it reaches its peak, before it tips over.
  • the tube 4 can contain several "stages” each comprising a projectile and its stack of washers 5 (or equivalent spring device).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Abstract

The projectile launcher of the invention comprises a launching tube (4) having, at its base, a spring-type energy accumulator device (5). During launching, the device (5), which was in the compressed state, is released and makes it possible to launch the projectile (7) vertically, the projectile then tilts (with the ignition of boosters), and its conventional propulsion units are ignited. <IMAGE>

Description

La présente invention a pour objet un lanceur de projectiles furtif.The present invention relates to a stealth projectile launcher.

Pour lancer des projectiles tels que des roquettes, des fusées ou des missiles, on utilise généralement des lanceurs à poudre produisant une flamme lors du départ du projectile. Cette flamme permet de repérer facilement le lieu de lancement, et donc de diriger aisément le tir adverse en vue de détruire le lanceur.To launch projectiles such as rockets, rockets or missiles, powder launchers are generally used which produce a flame when the projectile leaves. This flame makes it easy to identify the launch site, and therefore to easily direct the enemy's fire in order to destroy the launcher.

Par ailleurs, on connaît des dispositifs de lancement à gaz qui sont beaucoup plus discrets, mais nécessitent le transport sur le lieu de lancement de bonbonnes de gaz lourdes et encombrantes.Furthermore, gas launching devices are known which are much more discreet, but require the transport to the launch site of heavy and bulky gas cylinders.

La présente invention a pour objet un dispositif de lancement de projectiles qui soit furtif, visuellement et acoustiquement, très peu onéreux, léger et peu encombrant.The subject of the present invention is a device for launching projectiles which is stealthy, visually and acoustically, very inexpensive, light and compact.

Le dispositif de lancement de projectiles conforme à l'invention comporte un socle de lancement orientable en gisement et/ou en site, et supportant un tube lanceur comprenant un accumulateur d'énergie à ressort lanceur orientable en gisement.The projectile launching device according to the invention comprises a launching base which can be orientated in deposit and / or in elevation, and which supports a launching tube comprising an energy accumulator with a launching spring which can be orientated in deposit.

La présente invention sera mieux comprise à la lecture de la description détaillée d'un mode de réalisation, pris à titre d'exemple non limitatif et illustré par le dessin annexé, sur lequel :

  • la figure 1 est une vue en coupe d'un dispositif de lancement conforme à l'invention avec son projectile prêt à être lancé ;
  • la figure 2 est une vue de dessus du dispositif de la figure 1 ;
  • la figure 3 est une vue en coupe du dispositif de verrouillage et de déclenchement du dispositif de la figure 1 ;
  • la figure 4 est une vue schématique expliquant le lancement de projectiles à l'aide du dispositif de la figure 1, avec rotation de 90° en site du projectile ;
  • la figure 5 est une vue de dessus du support de la figure 4 ;
  • la figure 6 est une vue schématique expliquant le lancement de projectiles à l'aide du dispositif de la figure 1, avec rotation d'un angle quelconque en site du projectile, et
  • la figure 7 est une vue de dessus du support de la figure 6.
The present invention will be better understood on reading the detailed description of an embodiment, taken by way of nonlimiting example and illustrated by the appended drawing, in which:
  • Figure 1 is a sectional view of a launch device according to the invention with its projectile ready to be launched;
  • Figure 2 is a top view of the device of Figure 1;
  • Figure 3 is a sectional view of the locking and triggering device of the device of Figure 1;
  • Figure 4 is a schematic view explaining the launching of projectiles using the device of Figure 1, with 90 ° rotation in elevation of the projectile;
  • Figure 5 is a top view of the support of Figure 4;
  • FIG. 6 is a schematic view explaining the launching of projectiles using the device of FIG. 1, with rotation of any angle in elevation of the projectile, and
  • FIG. 7 is a top view of the support of FIG. 6.

Le dispositif décrit ci-dessous permet de lancer un projectile, guidé ou non, autopropulsé, selon une trajectoire initiale assez précise. A cet effet, on lance verticalement le projectile avec une vitesse initiale déterminée, et ce, sans bruit notable ni flammes. Lorsque ce projectile arrive à son apogée, on le fait basculer et on allume son système d'autopropulsion pour lui faire suivre ensuite une trajectoire déterminée.The device described below makes it possible to launch a self-propelled projectile, guided or not, according to a fairly precise initial trajectory. For this purpose, the projectile is launched vertically with a determined initial speed, and this without any noticeable noise or flames. When this projectile reaches its peak, it is tipped over and its self-propelling system is switched on to make it then follow a determined trajectory.

Le lanceur de projectiles permettant d'obtenir ladite vitesse initiale est schématiquement représenté en figure 1. Il comprend un socle 1 muni de pieds réglables (non représentés, ou dispositif analogue, permettant d'orienter verticalement ou selon un angle déterminé) l'axe longitudinal 2 de son tube lanceur.The projectile launcher making it possible to obtain said initial speed is schematically represented in FIG. 1. It comprises a base 1 provided with adjustable feet (not shown, or similar device, making it possible to orient the longitudinal axis vertically or at a determined angle) 2 of its launcher tube.

Le socle 1 supporte, par l'intermédiaire d'un palier ou d'un roulement 3 un tube de lancement 4. Le palier 3 permet d'orienter en gisement le tube 4. On interpose entre le tube 4 et le socle 1 un tampon 1A absorbeur d'énergie par exemple en caoutchouc. Le tube 4 renferme, à sa partie inférieure, un dispositif 5 accumulateur d'énergie à ressorts. Selon le mode de réalisation préféré représenté sur le dessin, le dispositif 5 est constitué d'un empilement de rondelles Belleville (rondelles incurvées). De préférence, ces rondelles Belleville sont en matériau composite (par exemple époxyde et renfort à base de fibres de carbone ou de verre, où à base de KEVLAR). Les rondelles Belleville sont maintenues comprimées dans le tube 4 à l'aide d'un dispositif de verrouillage 6 décrit plus en détail ci-dessous en référence à la figure 3. Cette compression peut être effectuée soit en usine lors de la fabrication du socle, soit avant l'utilisation, à l'aide d'un dispositif mécanique, pneumatique ou hydraulique approprié. Le dispositif de verrouillage 6 sert également à fixer un projectile 7 dans le tube 4. Le tube 4 est fermé à son extrémité supérieure par un couvercle 8.The base 1 supports, by means of a bearing or a bearing 3 a launching tube 4. The bearing 3 makes it possible to orient the tube 4 in bearing. A buffer is interposed between the tube 4 and the base 1 1A energy absorber, for example rubber. The tube 4 contains, at its lower part, a device 5 for energy storage with springs. According to the preferred embodiment shown in the drawing, the device 5 consists of a stack of Belleville washers (curved washers). Preferably, these Belleville washers are made of composite material (for example epoxy and reinforcement based on carbon or glass fibers, or based on KEVLAR). The Belleville washers are kept compressed in the tube 4 using a locking device 6 described in more detail below with reference to FIG. 3. This compression can be carried out either in the factory during the manufacture of the base, either before use, using an appropriate mechanical, pneumatic or hydraulic device. The device Lock 6 also serves to fix a projectile 7 in the tube 4. The tube 4 is closed at its upper end by a cover 8.

Le socle 1 comporte un repère 9 permettant de l'orienter géographiquement par rapport au terrain sur lequel il va être installé pour le tir. Par exemple, ce repère devra être orienté au Nord. Le tube 4 comporte également un repère 9A, qui est par exemple aligné avec le repère 9 en position initiale. Lorsque l'on a désigné le gisement de la cible, on fait tourner le tube 4 de la valeur angulaire désirée autour de son axe 2. Le socle 1 ayant une orientation bien précise, il est donc facile d'orienter le tube 4 (en le faisant tourner autour de l'axe 2) de façon que le projectile 7 soit envoyé dans la direction désirée, le projectile ayant lui-même une orientation déterminée par rapport au tube 4 (en fonction des impulseurs de basculement utilisés, et décrits ci-dessous).The base 1 has a reference 9 allowing it to be oriented geographically with respect to the terrain on which it will be installed for shooting. For example, this marker should be oriented to the North. The tube 4 also includes a mark 9A, which is for example aligned with the mark 9 in the initial position. When the target deposit has been designated, the tube 4 is rotated by the desired angular value around its axis 2. The base 1 having a very precise orientation, it is therefore easy to orient the tube 4 (in rotating it around the axis 2) so that the projectile 7 is sent in the desired direction, the projectile itself having a determined orientation relative to the tube 4 (depending on the tilting impellers used, and described below) below).

L'orientation du tube 4 peut être réalisée soit manuellement, soit automatiquement. Dans le premier cas, le tube 4 porte également un repère, correspondant à la direction dans laquelle a lieu le basculement du projectile (de façon décrite plus en détail ci-dessous). Le socle 1 comporte alors des graduations angulaires sur l'une desquelles il suffit d'aligner le repère du tube 4. Dans le deuxième cas, le tube 4 est mû par un moteur (non représenté) commandé par un dispositif d'asservissement (non représenté), et est solidaire d'un dispositif de mesure angulaire relié à ce dispositif d'asservissement, qui est par ailleurs relié à un dispositif d'introduction de données (par exemple un clavier) lui fournissant la valeur angulaire désirée du gisement de l'objectif.The orientation of the tube 4 can be carried out either manually or automatically. In the first case, the tube 4 also carries a mark, corresponding to the direction in which the rocking of the projectile takes place (as described in more detail below). The base 1 then has angular graduations on one of which it suffices to align the reference mark of the tube 4. In the second case, the tube 4 is driven by a motor (not shown) controlled by a servo device (not shown), and is integral with an angular measurement device connected to this servo device, which is also connected to a data input device (for example a keyboard) providing it with the desired angular value of the deposit of the 'goal.

Le dispositif 1A absorbeur d'énergie peut être une simple rondelle de caoutchouc du type VlBTENE(de densité comprise entre 1,2 et 1,5 par exemple) qui a une épaisseur d'environ 10 mm pour un projectile d'un poids de 10 Kg masse environ.The energy absorbing device 1A can be a simple rubber washer of the VlBTENE type (of density between 1.2 and 1.5 for example) which has a thickness of approximately 10 mm for a projectile weighing 10 Kg mass approximately.

Le dispositif de verrouillage 6 représenté en détail en figure 3 a pour rôles de verrouiller en place le projectile 7 dans le tube 4, de retenir l'énergie emmagasinée dans les dispositifs à ressort 5 dès que ceux-ci sont comprimés, et, au moment du lancement du projectile 7, de déverrouiller le projectile et de libérer brusquement ladite énergie emmagasinée.The role of the locking device 6 shown in detail in FIG. 3 is to lock the projectile 7 in place in the tube 4, to retain the energy stored in the spring devices 5 as soon as they are compressed, and, when launching the projectile 7, to unlock the projectile and suddenly release said stored energy.

Selon le mode de réalisation de la figure 3, le dispositif 6 comporte un tube 10 dont l'axe est confondu avec l'axe 2, qui est fixé sur le fond 4A du tube 4, et qui est fermé par un couvercle 10A à son extrémité supérieure. Ce tube 10 passe dans l'alésage axial 11 d'une plaque de retenue 12, le diamètre extérieur du tube 10 étant pratiquement égal au diamètre de l'alésage de la plaque 11. L'alésage 11 comporte, à peu près à mi-épaisseur de la plaque 12, une gorge 13 à section semi-circulaire. Cette gorge 13 s'étend perpendiculairement à l'axe 2, et le rayon de sa section est sensiblement égale au rayon des billes de retenue décrites ci-dessous.According to the embodiment of Figure 3, the device 6 comprises a tube 10 whose axis is coincident with the axis 2, which is fixed to the bottom 4A of the tube 4, and which is closed by a cover 10A at its upper end. This tube 10 passes through the axial bore 11 of a retaining plate 12, the outside diameter of the tube 10 being practically equal to the diameter of the bore of the plate 11. The bore 11 comprises, roughly half thickness of the plate 12, a groove 13 of semi-circular section. This groove 13 extends perpendicular to the axis 2, and the radius of its section is substantially equal to the radius of the retaining balls described below.

La longueur du tube 10 est à peu près égale ou légèrement supérieure à l'épaisseur de l'empilement des rondelles Belleville 5 non comprimées et de la plaque 12. Ainsi, comme représenté en figure 3, lorsque les rondelles 5 sont comprimées contre la paroi inférieure plane du tube 4, l'extrémité supérieure du tube 10 dépasse de la plaque 12, et c'est cette extrémité qui est introduite dans un logement axial 14 de dimensions correspondantes pratiqué à la partie inférieure du projectile 7. On pratique dans le logement 14 une gorge 15, identique à la gorge 13, par exemple environ au tiers de la profondeur du logement 14 à partir de la face arrière du projectile (celle appliquée contre la plaque 12).The length of the tube 10 is approximately equal to or slightly greater than the thickness of the stack of uncompressed Belleville washers 5 and of the plate 12. Thus, as shown in FIG. 3, when the washers 5 are compressed against the wall lower plane of the tube 4, the upper end of the tube 10 protrudes from the plate 12, and it is this end which is introduced into an axial housing 14 of corresponding dimensions formed in the lower part of the projectile 7. It is practiced in the housing 14 a groove 15, identical to the groove 13, for example approximately one third of the depth of the housing 14 from the rear face of the projectile (that applied against the plate 12).

On pratique dans la paroi cylindrique du tube 10 en vis-à-vis des gorges 13 et 15 lorsque les rondelles 5 sont comprimées et le projectile 7 pressé contre la plaque 12, deux séries de trous traversants 10B. Ces trous, par exemple au nombre de trois ou quatre pour chaque série, sont régulièrement répartis à la périphérie du tube 10.There are two series of through holes 10B in the cylindrical wall of the tube 10 facing the grooves 13 and 15 when the washers 5 are compressed and the projectile 7 pressed against the plate 12. These holes, for example three in number or four for each series, are regularly distributed around the periphery of the tube 10.

Un noyau cylindrique plein 16 est logé dans le tube 10. Son diamètre est pratiquement égal au diamètre intérieur du tube 10 dans lequel il peut se déplacer axialement à frottement doux. Le noyau 16 est actionné par une tige axiale 17 qui en est solidaire et qui traverse le fond 4A du tube 4. La tige 17 est elle-même actionnée, de façon non représentée, soit manuellement, soit automatiquement, et peut être bloquée axialement en position.A solid cylindrical core 16 is housed in the tube 10. Its diameter is practically equal to the inside diameter of the tube 10 in which it can move axially with gentle friction. The core 16 is actuated by an axial rod 17 which is integral therewith and which passes through the bottom 4A of the tube 4. The rod 17 is itself actuated, in a manner not shown, either manually or automatically, and can be locked axially in position.

Le noyau 16 comporte à sa périphérie une première rainure large à bords évasés 18, dont la profondeur est sensiblement égale au rayon des billes de verrouillage 20 et la largeur légèrement supérieure à deux fois le diamètre de ces billes. Le noyau 16 comporte une deuxième rainure évasée 19 de même profondeur que la rainure 18, mais de largeur sensiblement égale au diamètre desdites billes. Ces rainures 18, 19 sont formées de façon à se trouver en vis-à-vis des trous 10B lorsque le noyau 16 est en position haute de déverrouillage, c'est-à-dire en butée contre le couvercle 10A du tube 10 et de façon que seule la rainure 18 se trouve en face des trous 10B supérieurs lorsque le noyau 16 est en position "moyenne". Sur la figure 3, on a représenté à gauche de l'axe 2 le noyau 16 en position haute, et à droite en position moyenne.The core 16 has at its periphery a first wide groove with flared edges 18, the depth of which is substantially equal to the radius of the locking balls 20 and the width slightly greater than twice the diameter of these balls. The core 16 comprises a second flared groove 19 of the same depth as the groove 18, but of width substantially equal to the diameter of said balls. These grooves 18, 19 are formed so as to be opposite the holes 10B when the core 16 is in the high unlocking position, that is to say in abutment against the cover 10A of the tube 10 and so that only the groove 18 is opposite the upper holes 10B when the core 16 is in the "medium" position. In Figure 3, there is shown to the left of the axis 2 the core 16 in the high position, and to the right in the middle position.

Pour verrouiller le dispositif lanceur, on met le noyau 16 en position haute, et on introduit les billes 20dans les trous correspondants 10B du tube 10. Du fait que les rainures 18 et 19 sont en vis-à-vis des trous 10B, les billes 20 arrivent au ras de la surface extérieure du tube 10. On peut les maintenir en place pendant l'armement du lanceur à l'aide d'une pâte appropriée. On met en place les rondelles Belleville et la plaque 12 sur laquelle on applique la pression nécessaire, et on abaisse le noyau 16 en position moyenne, pour laquelle les billes 20 des trous inférieurs 10B sont chassées par le noyau dans la gorge 13, verrouillant ainsi la plaque 12 dans la position pour laquelle elle maintient les rondelles 5 comprimées. On coiffe ensuite la partie supérieure du tube 10 avec le projectile 7, et on abaisse le noyau 6 en position basse, ce qui chasse les billes 20 des trous supérieurs 10B dans la gorge 15, verrouillant ainsi en place le projectile 7 contre la plaque 12. Du fait qu'en position basse, le noyau 6 ne présente pas de rainure en vis-à-vis des gorges 13 et 15, les deux séries de billes 20 verrouillent alors à la fois les rondelles 5 et le projectile 7 en position "prêt à lancer". Bien entendu, en position basse ou moyenne du noyau 6, la tige 17 peut être bloquée à l'aide d'un moyen approprié, par exemple par une vis de blocage, ce qui permet de transporter le dispositif lanceur avec ou sans projectile depuis l'endroit où l'on a comprimé les rondelles 5 avec un outillage approprié, et même de mettre en place dans le lanceur le projectile peu avant son lancement tout en gardant les rondelles 5 comprimées (noyau 6 en position moyenne).To lock the launcher device, the core 16 is put in the high position, and the balls 20 are introduced into the corresponding holes 10B of the tube 10. Because the grooves 18 and 19 are opposite the holes 10B, the balls 20 arrive flush with the outer surface of the tube 10. They can be held in place while cocking the launcher using an appropriate paste. The Belleville washers and the plate 12 are placed on which the necessary pressure is applied, and the core 16 is lowered to the middle position, for which the balls 20 of the lower holes 10B are driven by the core into the groove 13, thus locking the plate 12 in the position for which it keeps the washers 5 compressed. The upper part of the tube 10 is then capped with the projectile 7, and the core 6 is lowered to the low position, which drives the balls 20 from the upper holes 10B in the groove 15, thus locking the projectile 7 in place against the plate 12 Because the core 6 has no groove facing the grooves 13 and 15, the two series of balls 20 then lock both the washers 5 and the projectile 7 in position " ready to launch. " Of course, in the low or middle position of the core 6, the rod 17 can be blocked using an appropriate means, for example by a locking screw, which makes it possible to transport the launcher device with or without a projectile from the 'place where the washers 5 have been compressed with appropriate tools, and even to put the projectile in the launcher shortly before launching while keeping the washers 5 compressed (core 6 in the middle position).

On a schématiquement représenté en figures 4 et 5 la première phase de la trajectoire du projectile 7. Le socle 1 étant réglé en position de tir, c'est-à-dire que l'axe 2 du tube 4 est par exemple vertical, et le repère 9 du socle 1 ainsi que le repère 9A du tube 4 sont orientés géographiquement, par exemple au Nord. Le gisement G de la cible étant alors déterminé de façon connue en soi, on fait tourner le tube 4 de la valeur G et on le bloque dans cette position (repère 9'A dans la direction D de la cible, en figure 5). Au moment du tir, on pousse la tige 17 du noyau 6 en position moyenne pour libérer le projectile, puis en position haute pour libérer la plaque 12, ce qui permet aux rondelles 5 de se détendre brusquement et de lancer verticalement le projectile 7. Le projectile 7 s'élève jusqu'à un apogée, à une hauteur H, qui est fonction des caractéristiques des rondelles 5 et du poids du projectile. Par exemple, pour un projectile de 10 Kg masse, avec un empilement de 35 rondelles en acier d'un diamètre extérieur, au repos de 0,12 m, d'une épaisseur de 6 mm, cet empilement ayant une hauteur de 34 cm au repos et 21cm à l'état comprimé, on obtient un apogée d'une hauteur d'environ 50 m. La position du projectile 7 à cet apogée, dont la vitesse est alors nulle, est représentée en traits continus en figure 4. A cet instant, un dispositif de mesure dont est muni le projectile (mesure de la vitesse du projectile ou de la distance parcourue par le projectile, ou du temps par exemple) déclenche un ou plusieurs impulseurs 21 disposés sur le projectile et orientés de façon à le faire basculer sensiblement autour de son centre de gravité 22. Ces impulseurs, par exemple pyrotechniques, n'ont pas besoin d'être puissants, car leur action s'exerce lorsque le projectile a une vitesse pratiquement nulle. La position du projectile après rotation de 90° est représentée en traits interrompus en figure 4. Dès que cette rotation est effectuée le dispositif de propulsion autonome du projectile 7 est mis à feu, et ce projectile se dirige dans la direction D vers la cible désignée. Etant donné que le dispositif de propulsion du projectile 7 n'est mis à feu que lorsque ce projectile est à une altitude relativement élevée, il est très difficile à un observateur se trouvant dans la zone de la cible de déterminer le lieu de lancement du projectile, d'autant plus que s'il se base sur la trajectoire du projectile après rotation de 90°, il est amené à déterminer de façon habituelle un lieu de lancement théorique qui peut être très éloigné du lieu de lancement réel.The first phase of the trajectory of the projectile 7 is schematically represented in FIGS. 4 and 5. The base 1 being adjusted in the firing position, that is to say that the axis 2 of the tube 4 is for example vertical, and the mark 9 of the base 1 as well as the mark 9A of the tube 4 are oriented geographically, for example to the North. The deposit G of the target then being determined in a manner known per se, the tube 4 is rotated by the value G and it is blocked in this position (mark 9'A in the direction D of the target, in FIG. 5). At the time of the firing, the rod 17 of the core 6 is pushed into the medium position to release the projectile, then into the high position to release the plate 12, which allows the washers 5 to suddenly relax and launch the projectile 7 vertically. projectile 7 rises to a peak, at a height H, which is a function of the characteristics of the washers 5 and the weight of the projectile. For example, for a 10 Kg mass projectile, with a stack of 35 steel washers with an external diameter, at rest of 0.12 m, with a thickness of 6 mm, this stack having a height of 34 cm at rest and 21 cm in the compressed state, we obtain a climax of a height of around 50 m. The position of the projectile 7 at this apex, the speed of which is then zero, is shown in solid lines in FIG. 4. At this instant, a measuring device with which the projectile is provided (measurement of the speed of the projectile or of the distance traveled by the projectile, or time for example) triggers one or more impellers 21 arranged on the projectile and oriented so as to cause it to rock substantially around its center of gravity 22. These impellers, for example pyrotechnic, do not need 'be powerful, because their action is exerted when the projectile has a practically zero speed. The position of the projectile after rotation of 90 ° is shown in broken lines in FIG. 4. As soon as this rotation is carried out, the autonomous projectile propulsion device 7 is ignited, and this projectile heads in the direction D towards the designated target. . Since the propulsion device of the projectile 7 is only ignited when this projectile is at a relatively high altitude, it is very difficult for an observer in the area of the target to determine the place of launching of the projectile , all the more that if it is based on the trajectory of the projectile after rotation of 90 °, it is brought to determine in a usual way a theoretical launching place which can be very far from the real launching place.

Les schémas explicatifs des figures 6 et 7 sont similaires à ceux des figures 4 et 5, la différence résidant dans le fait qu'après avoir atteint son apogée, le projectile 7 effectue, sous la poussée de ses impulseurs 21' une rotation d'un angle de site différent de 90°. S⁺ pour une rotation inférieure à 90° ou S⁻ pour une rotation supérieure à 90°. La rotation S⁺ peut par exemple permettre d'atteindre des cibles volantes, tandis que la rotation S⁻ peut par exemple permettre d'atteindre des cibles relativement proches, mais cachées par des obstacles élevés (bâtiments, rochers) se trouvant entre elles et le lieu de lancement. Il suffit alors que l'apogée soit à une hauteur H supérieure à celle de ces obstacles.The explanatory diagrams of FIGS. 6 and 7 are similar to those of FIGS. 4 and 5, the difference residing in the fact that after having reached its peak, the projectile 7 performs, under the thrust of its impellers 21 'a rotation of one site angle other than 90 °. S⁺ for rotation less than 90 ° or S⁻ for rotation greater than 90 °. The rotation S⁺ can for example make it possible to reach flying targets, while the rotation S⁻ can for example make it possible to reach relatively close targets, but hidden by high obstacles (buildings, rocks) between them and the launch site. It then suffices that the apogee is at a height H greater than that of these obstacles.

Selon une variante de l'invention, on peut appliquer au projectile une propulsion additionnelle lorsqu'il atteint son apogée, avant qu'il ne bascule.According to a variant of the invention, an additional propulsion can be applied to the projectile when it reaches its peak, before it tips over.

Selon encore une autre variante, le tube 4 peut renfermer plusieurs "étages" comprenant chacun un projectile et son empilement de rondelles 5 (ou dispositif à ressort équivalent).According to yet another variant, the tube 4 can contain several "stages" each comprising a projectile and its stack of washers 5 (or equivalent spring device).

Claims (9)

Lanceur de projectiles furtif, caractérisé par le fait qu'il comporte un socle de lancement (1) orientable en gisement et/ou en site et supportant un tube lanceur (4) comprenant un accumulateur d'énergie à ressort (5), lanceur orientable en gisement.Stealth projectile launcher, characterized in that it comprises a launching base (1) orientable in bearing and / or in elevation and supporting a launching tube (4) comprising a spring energy accumulator (5), orientable launching in deposit. Lanceur selon la revendication 1, caractérisé par le fait que l'accumulateur d'énergie à ressort comporte un empilement de rondelles Belleville.Launcher according to claim 1, characterized in that the spring energy accumulator comprises a stack of Belleville washers. Lanceur selon la revendication 2, caractérisé par le fait que les rondelles Belleville sont en matériau composite.Launcher according to claim 2, characterized in that the Belleville washers are made of composite material. Lanceur selon l'une des revendications précédentes, caractérisé par le fait que le socle est disposé au sol, et orienté en gisement sur une direction repère (9).Launcher according to one of the preceding claims, characterized in that the base is arranged on the ground, and oriented in bearing on a reference direction (9). Lanceur selon l'une des revendications 1 ou 2, caractérisé par le fait que le socle est disposé sur un engin volant.Launcher according to one of claims 1 or 2, characterized in that the base is arranged on a flying vehicle. Lanceur selon l'une des revendications précédentes, caractérisé par le fait que le projectile (7) comporte des impulseurs qui lui font subir à son apogée une rotation.Launcher according to one of the preceding claims, characterized in that the projectile (7) comprises impellers which make it undergo its rotation at its peak. Lanceur selon la revendication 6, caractérisé par le fait que le projectile subit une poussée additionnelle avant de subir une rotation.Launcher according to claim 6, characterized in that the projectile undergoes an additional thrust before undergoing a rotation. Lanceur selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte des propulseurs qui sont activés lorsqu'il atteint son apogée.Launcher according to one of the preceding claims, characterized in that it includes thrusters which are activated when it reaches its peak. Lanceur selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte un dispositif de verrouillage (6) du dispositif accumulateur d'énergie.Launcher according to one of the preceding claims, characterized in that it comprises a locking device (6) of the energy storage device.
EP93400527A 1992-03-03 1993-03-02 Furtive projectile launcher Withdrawn EP0559547A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202495 1992-03-03
FR9202495A FR2688302B1 (en) 1992-03-03 1992-03-03 FURTIVE PROJECTILE LAUNCHER.

Publications (1)

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EP0559547A1 true EP0559547A1 (en) 1993-09-08

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EP (1) EP0559547A1 (en)
FR (1) FR2688302B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010036413A3 (en) * 2008-06-02 2010-06-10 Causwave, Inc. Projectile propulsion system
US8294287B2 (en) 2008-11-03 2012-10-23 Causwave, Inc. Electrical power generator
US8378509B2 (en) 2009-11-03 2013-02-19 Causwave, Inc. Multiphase material generator vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191422890A (en) * 1914-11-23 1915-09-23 William George A New or Improved Toy Gun applicable also as a Game Appliance.
US2600116A (en) * 1951-01-30 1952-06-10 Kopf Philip Toy mortar
SU927398A1 (en) * 1980-03-27 1982-05-15 Ростовский Ордена Трудового Красного Знамени Государственный Университет Tool for calibrating and hardening toothed gear teeth
US4689912A (en) * 1986-06-26 1987-09-01 Weapon Technology System R & D Ltd. Hand-held high-velocity grenade launcher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191422890A (en) * 1914-11-23 1915-09-23 William George A New or Improved Toy Gun applicable also as a Game Appliance.
US2600116A (en) * 1951-01-30 1952-06-10 Kopf Philip Toy mortar
SU927398A1 (en) * 1980-03-27 1982-05-15 Ростовский Ордена Трудового Красного Знамени Государственный Университет Tool for calibrating and hardening toothed gear teeth
US4689912A (en) * 1986-06-26 1987-09-01 Weapon Technology System R & D Ltd. Hand-held high-velocity grenade launcher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Week 8311, Derwent Publications Ltd., London, GB; AN 83-27222K & SU-A-927 398 (ROST UNIV) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010036413A3 (en) * 2008-06-02 2010-06-10 Causwave, Inc. Projectile propulsion system
US8181561B2 (en) 2008-06-02 2012-05-22 Causwave, Inc. Explosive decompression propulsion system
US8294287B2 (en) 2008-11-03 2012-10-23 Causwave, Inc. Electrical power generator
US8378509B2 (en) 2009-11-03 2013-02-19 Causwave, Inc. Multiphase material generator vehicle

Also Published As

Publication number Publication date
FR2688302A1 (en) 1993-09-10
FR2688302B1 (en) 1995-04-28

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