EP0571285A1 - Automatic firearm having a tiltable cartridge chamber for firing telescopic cyclindrical ammunition - Google Patents

Automatic firearm having a tiltable cartridge chamber for firing telescopic cyclindrical ammunition Download PDF

Info

Publication number
EP0571285A1
EP0571285A1 EP93401294A EP93401294A EP0571285A1 EP 0571285 A1 EP0571285 A1 EP 0571285A1 EP 93401294 A EP93401294 A EP 93401294A EP 93401294 A EP93401294 A EP 93401294A EP 0571285 A1 EP0571285 A1 EP 0571285A1
Authority
EP
European Patent Office
Prior art keywords
chamber
ammunition
carriage
firing
weapon according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93401294A
Other languages
German (de)
French (fr)
Other versions
EP0571285B1 (en
Inventor
Marc Rochelle
Jean-François Lescure
Julien Jimenez
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.)
CTA International SAS
Original Assignee
Giat Industries SA
CTA International SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Giat Industries SA, CTA International SAS filed Critical Giat Industries SA
Publication of EP0571285A1 publication Critical patent/EP0571285A1/en
Application granted granted Critical
Publication of EP0571285B1 publication Critical patent/EP0571285B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/45—Loading arrangements, i.e. for bringing the ammunition into the firing position the cartridge chamber or the barrel as a whole being tiltable or transversely slidable between a loading and a firing position
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/02—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for revolver-type guns, e.g. revolvers
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/20—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun specially adapted for caseless-ammunition duds

Definitions

  • the invention relates to an automatic weapon with tilting chamber for firing telescoped cylindrical ammunition, such as for example a medium caliber cannon.
  • Telescoped cylindrical ammunition has been known since the early 1970s and has the advantage over conventional ammunition of being lighter and less bulky, the projectile being housed entirely inside a cylindrical shell of constant section, of so that these munitions can be loaded axially by one end of a chamber of the weapon and axially extract the empty casings by the other end of the chamber, which simplifies the mechanisms for extracting the empty casings.
  • the recoil movement resulting from the firing of an ammunition is used for the angular displacement of the chamber between its firing and loading positions, and for the loading of a new ammunition into the chamber and the ejection of the empty cartridge case of the previously fired ammunition.
  • the operation of the weapon therefore depends on the operation of the ammunition and results in significant accelerations and shocks, which stress the mechanisms severely.
  • almost all of the movements necessary for loading ammunition is performed by the chamber, which is a very heavy piece whose displacement consumes a lot of energy and causes violent shocks.
  • ammunition loaded in the chamber can only be fired when the receding parts of the weapon have been brought back into battery, which limits the rate of fire.
  • the invention relates to an automatic weapon with tilting chamber for firing telescoped cylindrical ammunition, which is not subject to these drawbacks.
  • It also relates to an automatic weapon of the aforementioned type allowing a floating shot, that is to say that a munition loaded in the chamber can be fired before the recoil of the receding parts of the weapon, thereby increasing the rate of fire.
  • an automatic weapon with a tilting chamber for firing telescoped cylindrical munitions such as for example a medium caliber cannon, comprising a chamber for receiving an ammunition, arranged between a breech and a tube and tilting climb between a loading position and a firing position by pivoting around an eccentric shaft parallel to the tube, means for moving the chamber between these two positions, and means for supplying the chamber with ammunition, characterized in that the cylinder head, the tube and the pivot shaft of the chamber are fixedly carried by the same rigid structure which also carries the means for supplying ammunition as well as means with an electric motor for driving the means for moving the chamber and means for supplying munitlons, the latter being arranged behind the chamber in axial alignment with the latter in its loading position and comprising nt means movement of a munition in axial translation between a supply position and said chamber in its loading position, the introduction of a munition by the rear end of the chamber causing the extraction by the front end of the chamber of an empty cartridge case of a previously fired ammunition
  • the operation of the weapon is ensured by an electric motor, which makes it possible to obtain greater regularity of the operating cycles and independence from the operation of the ammunition.
  • the controlled movements of the chamber are limited to an alternating angular movement between its firing and loading positions, supply means driven by the electric motor being provided for axially displacing the munitions and introducing them one by one into the bedroom. This results in a significant reduction in the inertia of the parts of the weapon, the movements of which are controlled by the electric motor, and therefore a possible increase in the rate of fire.
  • the pivot shaft of the chamber is driven in rotation about its axis by the aforementioned electric motor means and is connected to the chamber by transmission means transforming the rotational movement of the 'shaft in an alternative oscillation of the chamber between its loading and firing positions.
  • these transmission means comprise on the one hand a carriage guided in translation on said rigid structure parallel to the pivot shaft of the chamber and moved in rectilinear reciprocating movement by said shaft by means a roller carried by the carriage and engaged in a helical groove of the shaft, and on the other hand a roller integral with the chamber and engaged in an oblique groove of said carriage.
  • the chamber comprises at its axial ends circular flanges intended to engage, when the chamber is brought into its firing position, in corresponding grooves of the cylinder head and of a cylindrical sleeve of tube support.
  • the means for supplying the chamber with ammunition comprise a supply carriage guided in translation on the aforementioned rigid structure and movable in rectilinear reciprocating movement to drive a munition from a position feed located behind the chamber in its loading position and introduce it into the chamber by axial translation, this carriage comprising a roller engaged in a helical groove of a longitudinal screw driven in rotation by the above-mentioned means with an electric motor .
  • the means for supplying ammunition also comprise a supply star carrying a certain number of munitions and rotatably mounted around a longitudinal axis on said rigid structure, behind the chamber, for successively positioning the ammunition in the axis of the chamber in its loading position.
  • the weapon allows a floating shot in burst at a rate high, the firing of an ammunition being carried out before the return to battery of all the recoiling parts.
  • FIGS. 1 and 2 schematically represent the essential means of the weapon according to the invention.
  • the rear end of the barrel 10 of the weapon is fixedly mounted in a sleeve 12 carried by a support 14 which is rigidly connected to the breech 16 by a lower beam 18 as well as by the longitudinal slides of a pivoting carriage of the tilting chamber, as will be seen below.
  • the tilting chamber 20 arranged between the cylinder head 16 and the rear end of the tube 10 is a cylindrical part comprising an axial bore whose diameter and length are very slightly greater than the diameter and the length of the munitions to be fired. It pivots about the axis of a longitudinal shaft 22 parallel to the tube 10 and which is supported at its ends by the cylinder head 16 and the sleeve support 14.
  • the front end of the shaft 22 carries a pinion 24 of rotary drive, which is itself connected by a gear train at the output shaft of an electric motor 26 placed under the tube 10 and the sleeve 12.
  • the ammunition supply means which essentially comprise a supply star 28 carried by a rotation shaft 30 parallel to the tube 10, a supply carriage 32 movable in reciprocating rectilinear movement parallel to the tube 10 by a feed screw 34 carrying at its front end a pinion 36 connected by a gear train to the output shaft of the motor 26.
  • the shaft 30 of the feed star 28 and the shaft of the feed screw 34 are carried at their ends by the cylinder head 16 and by a rear transmission and control box 38 which is rigidly connected to the cylinder head 16 by a longitudinal lower beam 40 and by longitudinal guides for guiding the feed carriage 32, as will be seen below.
  • a percussion system 42 extends between the rear box 38 and the cylinder head 16, in the axis of the tube 10, and is controlled in axial displacement by the rear box 38. On this rear box is also fixed an electromagnet 44 trigger control.
  • the sleeve 12 for fixing the tube 10 the cylinder head 16 and the rear box 38 are part of the same rigid structure which carries the tilting chamber 20 and its means of movement, as well as the means for supplying ammunition, the electric motor 20 and the associated gears. This entire assembly is subjected to a recoil movement when firing an ammunition, then to a battery return movement.
  • the longitudinal shaft 22 mounted between the cylinder head 16 and the sleeve support 14 supports a screw 46 with a helical groove 48 in which is engaged the lower roller 50 of a carriage 52 guided in displacement in longitudinal slides 54 which rigidly connect the support sleeve 14 and cylinder head 16.
  • the carriage 52 and its guide rails 54 are arranged between the shaft 22 and the tilting chamber 20.
  • the latter is of substantially cylindrical shape and is fixedly mounted in a part 56 comprising at its ends axial two parallel arms 58 for pivotally mounting on the ends of the shaft 22.
  • the lower face of this part 56 carries a roller 60 which is received in an oblique groove 62 of the upper face of the carriage 52 and whose ends 64 and 66 respectively define the loading position and the firing position of the tilting chamber 20.
  • the shaft 22 performs one complete revolution per operating cycle of the weapon. It rotates the screw 46 which, by means of the lower roller 50 of the carriage 52, transforms the rotation of the shaft 22 into a rectilinear back and forth movement of the carriage 52 in its guide rails 54. This rectilinear movement of the carriage 52 is, by means of the roller 60 engaged in the oblique groove 62, transformed into an oscillating movement back and forth of the chamber 20 between its loading position shown in FIG. 3, and its firing position shown in FIG. 4.
  • the roller 60 of the part 56 is at the rear end 64 of the groove 62 and the chamber 20 is in the loading position, while, when the carriage 52 is in its extreme rear position, the roller 60 of the part 56 is at the front end 66 of the groove 62 and the chamber 20 is in the firing position.
  • the chamber 20 has at its axial ends two circular flanges 68 (Figure 5) intended to engage in grooves 70 of corresponding shape which are machined at the ends of the sleeve 12 and the cylinder head 16 ( Figures 8 and 9).
  • each groove 70 extends circularly over 180 ° and is extended at its ends by two parallel guide ramps 72 between which the axial end engages corresponding to the chamber 20 when the latter is brought into its firing position.
  • the circular flanges 68 engaged in the grooves 70 of the sleeve 12 and of the breech 16 ensure the connection between the breech, the chamber and the sleeve during firing of a munition, without the 'we have to provide a breech box as in a conventional weapon. Under these conditions, it is the chamber 20 which collects the tensile forces during the firing of an ammunition.
  • the sleeve 12 comprises a longitudinal groove 74 which is formed throughout the thickness of its cylindrical wall and which extends from the rear end of the sleeve to the vicinity of its front end, to allow the extraction of an empty ammunition socket from the front of the chamber 20 when this chamber is in the loading position.
  • the angular movement of the chamber 20 between its firing and loading positions is just sufficient so that the bore of the chamber is entirely released from the rear end of the tube 10, which makes it possible to limit the angular displacement from chamber 20 to around 30 and thus accelerate the rate of fire.
  • an ejection arm 76 shown diagrammatically in FIGS. 10 and 11 is provided for moving an empty sleeve from an extraction position where it is partially engaged in the groove 74 of the sleeve 12 as far as an ejection position where it is released from this groove and aligned with an ejection chute (not shown).
  • the ejection arm 76 is, in its middle part, pivotally mounted around a longitudinal axis 78 on the sleeve support 14, its upper end being intended to be applied under an empty socket 80 extracted from the chamber, while its lower end comprises a slot 82 in which is engaged a finger 84 carried by one of the arms 58 of the part 56 for supporting the chamber 20.
  • the chamber 20 In the position of FIG. 10, the chamber 20 is in the loading position, the upper end of the arm 76 is applied under an empty socket 80 extracted from the chamber and the front end of which is supported on a retaining carriage 86 movable in reciprocating rectilinear movement as will be seen below, the empty socket 80 also being supported in this position by the longitudinal groove 74 of the sleeve 12.
  • FIGS. 12 et seq. To describe the means for supplying ammunition and their operation.
  • the feed star 28 mounted on the longitudinal shaft 30 can carry four telescoped cylindrical munitions 88 which are brought successively, by rotation of the star 28 on a fifth of a turn, in a position lower than the level of the feed carriage 32 and in axial alignment with the chamber 20 brought into its loading position .
  • This feed carriage 32 is guided in rectilinear movement in two longitudinal slides 90 which rigidly connect the rear box 38 to the cylinder head 16, the carriage 32 thus being disposed between the feed star 28 and the feed screw 34.
  • This comprises a stepped helical groove 92 ( Figures 1 and 2) in which are engaged a roller 94 and a sliding shoe 96 which are vertically superimposed and fixed under the carriage 32.
  • the roller 94 is engaged in the widest part of the groove 92 while the shoe 96 is engaged in the narrowest part and contributes to the passage of the roller in the intersections of the groove 92 of the screw during the rotation of the latter, this groove 92 being not crossed to allow a back and forth movement of the carriage 32 during the continuous rotation of the screw 34 in a determined direction.
  • the screw 34 is rotated at a speed three times higher than the shaft 22 for moving the tilting chamber 20.
  • the feed carriage 32 is connected to the retaining carriage 86 described with reference to FIGS. 10 and 11, by means of a rigid rod 98 and a latch support 100 (FIGS. 13 et seq.), The carriage retainer 86 being itself guided in translation on two parallel longitudinal rods 102 which are fixed at their ends to the sleeve 12 and to the sleeve support 14, respectively (FIG. 1).
  • the carriage 32 comprises a lateral tab 104 engaged in an elongated opening in the latch support 100 and allowing limited longitudinal movement of the carriage 32 relative to the latch support 100.
  • a latch 106 such as a roller or a ball, is engaged in a small transverse groove of the support 100 and in a longitudinal groove 108 of the rigid structure, at the ends of which are provided locking pins 110 biased by springs to come to engage in a notch 112 of the lock support and immobilize that here in position.
  • the tab 104 of the carriage 32 has two parallel grooves 114 in each of which the lock 106 can partially engage in order to secure the carriage 32 and the lock support 100.
  • the chamber 20 is in its loading position, in axial alignment with the carriage 32 and a munition 88 carried by the star 28.
  • the chamber 20 comprises the empty socket 80 of a munition which has just been fired , the retaining carriage 86 being a few millimeters from the front face of the chamber 20, while the supply carriage 32 is a few millimeters from the ammunition 88 to be loaded into the chamber 20.
  • the latch support 100 is immobilized by a pin 110 which is engaged in the notch 112 of this support.
  • the lock 106 As soon as the clearances have been caught up and the side tab 104 of the carriage 32 is in abutment on the front end of the slot of the lock support, the lock 106, guided by the groove 108, engages in a groove 114 of the tab 104 and secures the carriage 32 and the lock support 100. The lock support is then driven forward by the carriage 32 and emerges from the pin 110, compressing the spring of this pin.
  • the carriage 32 continues to move forward ( Figures 17 to 20) to introduce the ammunition 88 into the chamber 20, this ammunition 88 pushing the empty socket 80 outside the chamber to engage it on the longitudinal groove 74 sleeve support 12 ( Figure 8), where it is also supported by the upper end of the ejection arm 76 ( Figure 10).
  • the front end of the empty socket 80 is in abutment on the retaining carriage 86, which is itself moved forward on the rods 102.
  • the carriage 32 can then move rearward over a short distance to disengage from the chamber 20 (FIGS. 23 and 24), without driving the lock support and therefore without moving the retaining carriage 86 backwards.
  • the empty socket 80 is moved from its extraction position to its ejection position by the ejection arm 76 (FIG. 11), which frees the passage to the rear of the retaining carriage 86.
  • the chamber 20 is moved to its firing position to bring the ammunition 88 into axial alignment with the percussion system 42 and with the tube 10.
  • a calibration cam 116 located at the front of the chamber 20 makes it possible to correctly reposition the ammunition 88 inside the chamber 20.
  • the feed carriage 32 is again secured to the latch support 100 by the latch 106 engaged in a groove 114 in the side tab of the carriage 32, so that the carriage 32, the latch support 100 and the retaining carriage 86 can be brought back into their rear position of Figures 13 and 14.
  • the weapon according to the invention makes it possible to carry out a floating shot without waiting for the receding parts to return to the battery, that is to say a shot at a very high rate.
  • the supply star 28 is, in known manner, itself supplied with ammunition from a magazine by means which automatically follow the movements of recoil and return to the battery of the weapon.

Abstract

Automatic firearm for firing telescopic cylindrical ammunition, comprising a sleeve (12) for supporting a barrel (10), a breech (16) and a rear box (38) which are connected rigidly to one another by means of beams, with a chamber (20) arranged between the breech (16) and the barrel (10) and being mounted tiltably by pivoting about an eccentric shaft (22), and means (28, 32, 34), carried by the breech (16) and the rear box (38), for feeding the chamber with ammunition. <IMAGE>

Description

L'invention concerne une arme automatique à chambre basculante pour le tir de munitions cylindriques télescopées, telle par exemple qu'un canon de moyen calibre.The invention relates to an automatic weapon with tilting chamber for firing telescoped cylindrical ammunition, such as for example a medium caliber cannon.

Les munitions cylindriques télescopées sont connues depuis le début des années 1970 et présentent l'avantage par rapport aux munitions classiques d'être moins lourdes et moins encombrantes, le projectile étant logé entièrement à l'intérieur d'une douille cylindrique à section constante, de sorte qu'on peut charger ces munitions axialement par une extrémité d'une chambre de l'arme et extraire axialement les douilles vides par l'autre extrémité de la chambre, ce qui simplifie les mécanismes d'extraction des douilles vides.Telescoped cylindrical ammunition has been known since the early 1970s and has the advantage over conventional ammunition of being lighter and less bulky, the projectile being housed entirely inside a cylindrical shell of constant section, of so that these munitions can be loaded axially by one end of a chamber of the weapon and axially extract the empty casings by the other end of the chamber, which simplifies the mechanisms for extracting the empty casings.

On connaît déjà, par le brevet US-4 357 857, une arme automatique pour le tir de munitions cylindriques télescopées, dans laquelle une chambre agencée entre une culasse et un tube de canon est montée basculante autour d'un axe parallèle à l'axe du tube entre une position de tir où elle est disposée coaxialement au tube, et une position de chargement où elle est écartée angulairement de la culasse et du tube pour recevoir une nouvelle munition et permettre l'éjection de la douille vide de la munition précédemment tirée.Already known, from patent US-4 357 857, an automatic weapon for firing telescoped cylindrical ammunition, in which a chamber arranged between a breech and a barrel tube is pivotally mounted around an axis parallel to the axis of the tube between a firing position where it is arranged coaxially with the tube, and a loading position where it is angularly separated from the breech and the tube to receive a new ammunition and allow the ejection of the empty casing of the ammunition previously fired .

Dans cette arme connue, on utilise le mouvement de recul résultant du tir d'une munition pour le déplacement angulaire de la chambre entre ses positions de tir et de chargement, et pour le chargement d'une nouvelle munition dans la chambre et l'éjection de la douille vide de la munition précédemment tirée. Le fonctionnement de l'arme dépend donc du fonctionnement des munitions et se traduit par des accélérations et des chocs importants, qui sollicitent les mécanismes de façon sévère. De plus, dans cette arme, la quasi-totalité des mouvements nécessaires au chargement d'une munition est effectuée par la chambre, qui est une pièce très lourde dont le déplacement consomme beaucoup d'énergie et provoque des chocs violents. Par ailleurs, une munition chargée dans la chambre ne peut être tirée que lorsque les pièces reculantes de l'arme ont été ramenées en batterie ce qui limite la cadence de tir.In this known weapon, the recoil movement resulting from the firing of an ammunition is used for the angular displacement of the chamber between its firing and loading positions, and for the loading of a new ammunition into the chamber and the ejection of the empty cartridge case of the previously fired ammunition. The operation of the weapon therefore depends on the operation of the ammunition and results in significant accelerations and shocks, which stress the mechanisms severely. In addition, in this weapon, almost all of the movements necessary for loading ammunition is performed by the chamber, which is a very heavy piece whose displacement consumes a lot of energy and causes violent shocks. Furthermore, ammunition loaded in the chamber can only be fired when the receding parts of the weapon have been brought back into battery, which limits the rate of fire.

L'invention a pour objet une arme automatique à chambre basculante pour le tir de munitions cylindriques télescopées, qui ne soit pas soumise à ces inconvénients.The invention relates to an automatic weapon with tilting chamber for firing telescoped cylindrical ammunition, which is not subject to these drawbacks.

Elle a également pour objet une arme automatique du type précité permettant un tir flottant, c'est-à-dire qu'une munition chargée dans la chambre peut être tirée avant le retour en batterie des pièces reculantes de l'arme, en augmentant ainsi la cadence de tir.It also relates to an automatic weapon of the aforementioned type allowing a floating shot, that is to say that a munition loaded in the chamber can be fired before the recoil of the receding parts of the weapon, thereby increasing the rate of fire.

Elle a encore pour objet une arme du type précité dont le fonctionnement est indépendant du fonctionnement des munitions.It also relates to a weapon of the aforementioned type, the operation of which is independent of the operation of the ammunition.

L'invention propose à cet effet une arme automatique à chambre basculante pour le tir de munitions cylindriques télescopées, telle par exemple qu'un canon de moyen calibre, comprenant une chambre de réception d'une munition, agencée entre une culasse et un tube et montée basculante entre une position de chargement et une position de tir par pivotement autour d'un arbre excentré parallèle au tube, des moyens de déplacement de la chambre entre ces deux positions, et des moyens d'alimentation de la chambre en munitions, caractérisée en ce que la culasse, le tube et l'arbre de pivotement de la chambre sont portés fixement par une même structure rigide qui porte également les moyens d'alimentation en munitions ainsi que des moyens à moteur électrique d'entraînement des moyens de déplacement de la chambre et des moyens d'alimentation en munitlons, ces derniers étant disposés derrière la chambre en alignement axial avec celle-ci dans sa position de chargement et comprenant des moyens de déplacement d'une munition en translation axiale entre une position d'alimentation et ladite chambre dans sa position de chargement, l'introduction d'une munition par l'extrémité arrière de la chambre provoquant l'extraction par l'extrémité avant de la chambre d'une douille vide d'une munition précédemment tirée.To this end, the invention proposes an automatic weapon with a tilting chamber for firing telescoped cylindrical munitions, such as for example a medium caliber cannon, comprising a chamber for receiving an ammunition, arranged between a breech and a tube and tilting climb between a loading position and a firing position by pivoting around an eccentric shaft parallel to the tube, means for moving the chamber between these two positions, and means for supplying the chamber with ammunition, characterized in that the cylinder head, the tube and the pivot shaft of the chamber are fixedly carried by the same rigid structure which also carries the means for supplying ammunition as well as means with an electric motor for driving the means for moving the chamber and means for supplying munitlons, the latter being arranged behind the chamber in axial alignment with the latter in its loading position and comprising nt means movement of a munition in axial translation between a supply position and said chamber in its loading position, the introduction of a munition by the rear end of the chamber causing the extraction by the front end of the chamber of an empty cartridge case of a previously fired ammunition.

Ainsi, selon l'invention, le fonctionnement de l'arme est assuré par un moteur électrique, ce qui permet d'obtenir une plus grande régularité des cycles de fonctionnement et une indépendance vis-à-vis du fonctionnement des munitions. Par ailleurs, les déplacements commandés de la chambre sont limités à un déplacement angulaire alternatif entre ses positions de tir et de chargement, des moyens d'alimentation entraînés par le moteur électrique étant prévus pour déplacer axialement les munitions et les introduire une à une dans la chambre. Il en résulte une réduction importante de l'inertie des pièces de l'arme dont les mouvements sont commandés par le moteur électrique, et donc une augmentation possible de la cadence de tir.Thus, according to the invention, the operation of the weapon is ensured by an electric motor, which makes it possible to obtain greater regularity of the operating cycles and independence from the operation of the ammunition. Furthermore, the controlled movements of the chamber are limited to an alternating angular movement between its firing and loading positions, supply means driven by the electric motor being provided for axially displacing the munitions and introducing them one by one into the bedroom. This results in a significant reduction in the inertia of the parts of the weapon, the movements of which are controlled by the electric motor, and therefore a possible increase in the rate of fire.

Selon une autre caractéristique de l'invention, l'arbre de pivotement de la chambre est entraîné en rotation autour de son axe par les moyens à moteur électrique précites et est relié à la chambre par des moyens de transmission transformant le mouvement de rotation de l'arbre en une oscillation alternative de la chambre entre ses positions de chargement et de tir.According to another characteristic of the invention, the pivot shaft of the chamber is driven in rotation about its axis by the aforementioned electric motor means and is connected to the chamber by transmission means transforming the rotational movement of the 'shaft in an alternative oscillation of the chamber between its loading and firing positions.

Dans un mode de réalisation particulier de l'invention, ces moyens de transmission comprennent d'une part un chariot guidé en translation sur ladite structure rigide parallèlement à l'arbre de pivotement de la chambre et déplacé en mouvement alternatif rectiligne par ledit arbre au moyen d'un galet porté par le chariot et engagé dans une rainure hélicoïdale de l'arbre, et d'autre part un galet solidaire de la chambre et engagé dans une rainure oblique dudit chariot.In a particular embodiment of the invention, these transmission means comprise on the one hand a carriage guided in translation on said rigid structure parallel to the pivot shaft of the chamber and moved in rectilinear reciprocating movement by said shaft by means a roller carried by the carriage and engaged in a helical groove of the shaft, and on the other hand a roller integral with the chamber and engaged in an oblique groove of said carriage.

Ces moyens de déplacement de la chambre permettent de contrôler les accélérations de la chambre au cours de ses déplacements, et donc de réduire les chocs en fin de déplacement.These means of displacement of the chamber make it possible to control the accelerations of the chamber during its displacements, and therefore to reduce the shocks at the end of displacement.

Selon une autre caractéristique de l'invention, la chambre comporte à ses extrémités axiales des collerettes circulaires destinées à s'engager, quand la chambre est amenée dans sa position de tir, dans des rainures correspondantes de la culasse et d'un manchon cylindrique de support du tube.According to another characteristic of the invention, the chamber comprises at its axial ends circular flanges intended to engage, when the chamber is brought into its firing position, in corresponding grooves of the cylinder head and of a cylindrical sleeve of tube support.

Ces collerettes circulaires engagées dans les rainures correspondantes de la culasse et du manchon de support du tube, assurent alors la liaison de la culasse et du tube à la chambre en position de tir, ce qui se traduit par un allégement important de l'arme du fait de la suppression de la boîte de culasse généralement prévue dans une arme de type classique.These circular flanges engaged in the corresponding grooves of the breech and of the tube support sleeve, then ensure the connection of the breech and the tube to the chamber in the firing position, which results in a significant reduction in the weapon of the made the removal of the breech box generally provided in a conventional type weapon.

Selon encore une autre caractéristique de l'invention, les moyens d'alimentation de la chambre en munitions comprennent un chariot d'alimentation guidé en translation sur la structure rigide précitée et déplaçable en mouvement alternatif rectiligne pour entraîner une munition à partir d'une position d'alimentation située en arrière de la chambre dans sa position de chargement et l'introduire dans la chambre par translation axiale, ce chariot comportant un galet engagé dans une rainure hélicoïdale d'une vis longitudinale entraînée en rotation par les moyens précités à moteur électrique.According to yet another characteristic of the invention, the means for supplying the chamber with ammunition comprise a supply carriage guided in translation on the aforementioned rigid structure and movable in rectilinear reciprocating movement to drive a munition from a position feed located behind the chamber in its loading position and introduce it into the chamber by axial translation, this carriage comprising a roller engaged in a helical groove of a longitudinal screw driven in rotation by the above-mentioned means with an electric motor .

Cela permet notamment de contrôler l'accélération d'une munition tout au long de son déplacement d'introduction dans la chambre en réduisant notamment les accélérations en fin de déplacement, ce qui facilite et régularise le chargement des munitions.This makes it possible in particular to control the acceleration of a munition throughout its movement of introduction into the chamber, in particular by reducing the accelerations at the end of movement, which facilitates and regularizes the loading of the ammunition.

Selon encore une autre caractéristique de l'invention, les moyens d'alimentation en munitions comprennent également une étoile d'alimentation portant un certain nombre de munitions et montée rotative autour d'un axe longitudinal sur ladite structure rigide, en arrière de la chambre, pour positionner successivement les munitions dans l'axe de la chambre dans sa position de chargement.According to yet another characteristic of the invention, the means for supplying ammunition also comprise a supply star carrying a certain number of munitions and rotatably mounted around a longitudinal axis on said rigid structure, behind the chamber, for successively positioning the ammunition in the axis of the chamber in its loading position.

Grâce au fait que la culasse et le tube de l'arme, la chambre basculante et les moyens d'alimentation en munitions sont montés sur une même structure rigide qui fait partie des pièces reculantes, l'arme permet un tir flottant en rafale à cadence élevée, le tir d'un munition étant effectué avant le retour en batterie de l'ensemble des pièces reculantes.Thanks to the fact that the breech and the barrel of the weapon, the tilting chamber and the means for supplying ammunition are mounted on the same rigid structure which is part of the receding parts, the weapon allows a floating shot in burst at a rate high, the firing of an ammunition being carried out before the return to battery of all the recoiling parts.

L'invention sera mieux comprise et d'autres caractéristiques, détails et avantages de celle-ci apparaitront plus clairement à la lecture de la description qui suit, faite à titre d'exemple en réference aux dessins annexés dans lesquels :

  • les figures 1 et 2 sont des vues schématiques partielles en coupe longitudinale de l'arme selon l'invention, la figure 1 représentant la chambre basculante dans sa position de chargement, et la figure 2 la représentant dans sa position de tir;
  • la figure 3 est une vue schématique à plus grande échelle en coupe transversale selon la ligne A-A de la figure 1, représentant la chambre dans sa position de chargement;
  • la figure 4 est une vue semblable à la figure 3, mais représentant la chambre dans sa position de tir;
  • la figure 5 est une vue schématique en perspective de la chambre, de son support et de sa vis de pivotement;
  • les figures 6 et 7 sont des vues schématiques en plan et de côté du chariot de déplacement de la chambre;
  • la figure 8 est une vue schématique en perspective, à plus grande échelle, du manchon de support du tube de l'arme;
  • la figure 9 est une vue schématique partielle en coupe axiale, représentant la solidarisation de la chambre à la culasse et au manchon de support du tube;
  • les figures 10 et 11 représentent schématiquement le bras d'éjection d'une douille vide et son fonctionnement;
  • la figure 12 est une vue schématique à plus grande échelle en coupe transversale selon la ligne B-B de la figure 1;
  • les figures 13 à 24 sont des vues de dessus illustrant le fonctionnement des moyens d'alimentation, les figures 14, 16, 18, 20, 22 et 24 représentant à plus grande échelle un détail des moyens d'alimentation représentés dans les figures 13, 15, 17, 19, 21 et 23.
The invention will be better understood and other characteristics, details and advantages thereof will appear more clearly on reading the description which follows, given by way of example with reference to the appended drawings in which:
  • Figures 1 and 2 are partial schematic views in longitudinal section of the weapon according to the invention, Figure 1 showing the tilting chamber in its loading position, and Figure 2 showing it in its firing position;
  • Figure 3 is a schematic view on a larger scale in cross section along the line AA of Figure 1, showing the chamber in its loading position;
  • Figure 4 is a view similar to Figure 3, but showing the chamber in its firing position;
  • Figure 5 is a schematic perspective view of the chamber, its support and its pivot screw;
  • Figures 6 and 7 are schematic plan and side views of the carriage for moving the chamber;
  • Figure 8 is a schematic perspective view, on a larger scale, of the gun barrel support sleeve;
  • Figure 9 is a partial schematic view in axial section, showing the attachment of the chamber to the cylinder head and the tube support sleeve;
  • Figures 10 and 11 schematically show the ejection arm of an empty socket and its operation;
  • Figure 12 is a schematic view on a larger scale in cross section along the line BB of Figure 1;
  • FIGS. 13 to 24 are top views illustrating the operation of the supply means, FIGS. 14, 16, 18, 20, 22 and 24 showing on a larger scale a detail of the supply means represented in FIGS. 13, 15, 17, 19, 21 and 23.

On se réfère d'abord aux figures 1 et 2, qui représentent schématiquement les moyens essentiels de l'arme selon l'invention.Reference is first made to FIGS. 1 and 2, which schematically represent the essential means of the weapon according to the invention.

L'extrémité arrière du tube 10 de l'arme est montée fixement dans un manchon 12 porté par un support 14 qui est relié rigidement à la culasse 16 par une poutre inférieure 18 ainsi que par les glissières longitudinales d'un chariot de pivotement de la chambre basculante, comme on le verra ci-après.The rear end of the barrel 10 of the weapon is fixedly mounted in a sleeve 12 carried by a support 14 which is rigidly connected to the breech 16 by a lower beam 18 as well as by the longitudinal slides of a pivoting carriage of the tilting chamber, as will be seen below.

La chambre basculante 20 agencée entre la culasse 16 et l'extrémité arrière du tube 10 est une pièce cylindrique comportant un alésage axial dont le diamètre et la longueur sont très légèrement supérieurs au diamètre et à la longueur des munitions à tirer. Elle pivote autour de l'axe d'un arbre longitudinal 22 parallèle au tube 10 et qui est supporté à ses extrémités par la culasse 16 et le support de manchon 14. L'extrémité avant de l'arbre 22 porte un pignon 24 d'entraînement en rotation, qui est lui-même relié par un train d'engrenage à l'arbre de sortie d'un moteur électrique 26 disposé sous le tube 10 et le manchon 12.The tilting chamber 20 arranged between the cylinder head 16 and the rear end of the tube 10 is a cylindrical part comprising an axial bore whose diameter and length are very slightly greater than the diameter and the length of the munitions to be fired. It pivots about the axis of a longitudinal shaft 22 parallel to the tube 10 and which is supported at its ends by the cylinder head 16 and the sleeve support 14. The front end of the shaft 22 carries a pinion 24 of rotary drive, which is itself connected by a gear train at the output shaft of an electric motor 26 placed under the tube 10 and the sleeve 12.

A l'arrière de la culasse 16 se trouvent les moyens d'alimentation en munitions, qui comprennent essentiellement une étoile d'alimentation 28 portée par un arbre de rotation 30 parallèle au tube 10, un chariot d'alimentation 32 déplaçable en mouvement rectiligne alternatif parallèlement au tube 10 par une vis d'alimentation 34 portant à son extrémité avant un pignon 36 relié par un train d'engrenage à l'arbre de sortie du moteur 26.At the rear of the cylinder head 16 are the ammunition supply means, which essentially comprise a supply star 28 carried by a rotation shaft 30 parallel to the tube 10, a supply carriage 32 movable in reciprocating rectilinear movement parallel to the tube 10 by a feed screw 34 carrying at its front end a pinion 36 connected by a gear train to the output shaft of the motor 26.

L'arbre 30 de l'étoile d'alimentation 28 et l'arbre de la vis d'alimentation 34 sont portés à leurs extrémités par la culasse 16 et par une boîte arrière 38 de transmission et de commande qui est reliée rigidement à la culasse 16 par une poutre inférieure longitudinale 40 et par des glissières longitudinales de guidage du chariot d'alimentation 32, comme on le verra ci-après.The shaft 30 of the feed star 28 and the shaft of the feed screw 34 are carried at their ends by the cylinder head 16 and by a rear transmission and control box 38 which is rigidly connected to the cylinder head 16 by a longitudinal lower beam 40 and by longitudinal guides for guiding the feed carriage 32, as will be seen below.

Un système de percussion 42 s'étend entre la boîte arrière 38 et la culasse 16, dans l'axe du tube 10, et est commandé en déplacement axial par la boîte arrière 38. Sur cette boîte arrière est également fixé un électro-aimant 44 de commande de détente.A percussion system 42 extends between the rear box 38 and the cylinder head 16, in the axis of the tube 10, and is controlled in axial displacement by the rear box 38. On this rear box is also fixed an electromagnet 44 trigger control.

Les caractéristiques de la chambre basculante 20, de ses moyens de déplacement, et des moyens d'alimentation vont être décrits plus en détail en référence aux figures 3 et suivantes. On constate cependant déjà que le manchon 12 de fixation du tube 10, la culasse 16 et la boîte arrière 38 font partie d'une même structure rigide qui porte la chambre basculante 20 et ses moyens de déplacement, ainsi que les moyens d'alimentation en munitions, le moteur électrique 20 et les engrenages associés. Tout cet ensemble est soumis à un mouvement de recul lors du tir d'une munition, puis à un mouvement de retour en batterie.The characteristics of the tilting chamber 20, of its displacement means, and of the supply means will be described in more detail with reference to Figures 3 and following. However, it can already be seen that the sleeve 12 for fixing the tube 10, the cylinder head 16 and the rear box 38 are part of the same rigid structure which carries the tilting chamber 20 and its means of movement, as well as the means for supplying ammunition, the electric motor 20 and the associated gears. This entire assembly is subjected to a recoil movement when firing an ammunition, then to a battery return movement.

On va maintenant décrire plus en détaii la structure de la chambre basculante 20 et ses moyens de déplacement, en référence aux figures 3 à 7.We will now describe in more detail the structure of the tilting chamber 20 and its displacement means, with reference to FIGS. 3 to 7.

L'arbre longitudinal 22 monté entre la culasse 16 et le support de manchon 14 supporte une vis 46 à rainure hélicoïdale 48 dans laquelle est engagé le galet inférieur 50 d'un chariot 52 guidé en déplacement dans des glissières longitudinales 54 qui relient rigidement le support de manchon 14 et la culasse 16. Le chariot 52 et ses glissières de guidage 54 sont disposés entre l'arbre 22 et la chambre basculante 20. Celle-ci est de forme sensiblement cylindrique et est montée fixement dans une pièce 56 comprenant à ses extrémités axiales deux bras parallèles 58 de montage en pivotement sur les extrémités de l'arbre 22. La face inférieure de cette pièce 56 porte un galet 60 qui est reçu dans une rainure oblique 62 de la face supérieure du chariot 52 et dont les extrémités 64 et 66 définissent respectivement la position de chargement et la position de tir de la chambre basculante 20.The longitudinal shaft 22 mounted between the cylinder head 16 and the sleeve support 14 supports a screw 46 with a helical groove 48 in which is engaged the lower roller 50 of a carriage 52 guided in displacement in longitudinal slides 54 which rigidly connect the support sleeve 14 and cylinder head 16. The carriage 52 and its guide rails 54 are arranged between the shaft 22 and the tilting chamber 20. The latter is of substantially cylindrical shape and is fixedly mounted in a part 56 comprising at its ends axial two parallel arms 58 for pivotally mounting on the ends of the shaft 22. The lower face of this part 56 carries a roller 60 which is received in an oblique groove 62 of the upper face of the carriage 52 and whose ends 64 and 66 respectively define the loading position and the firing position of the tilting chamber 20.

L'arbre 22 effectue un tour complet par cycle de fonctionnement de l'arme. Il entraîne en rotation la vis 46 qui, par l'intermédiaire du galet inférieur 50 du chariot 52, transforme la rotation de l'arbre 22 en un déplacement rectiligne aller et retour du chariot 52 dans ses glissières de guidage 54. Ce déplacement rectiligne du chariot 52 est, par l'intermédiaire du galet 60 engagé dans la rainure oblique 62, transformé en un mouvement oscillant aller et retour de la chambre 20 entre sa position de chargement représentée en figure 3, et sa position de tir représentée en figure 4. De façon plus précise, lorsque le chariot 52 est dans sa position extrême avant, le galet 60 de la pièce 56 est à l'extrémité arrière 64 de la rainure 62 et la chambre 20 est en position de chargement, tandis que, quand le chariot 52 est dans sa position extrême arrière, le galet 60 de la pièce 56 est à l'extrémité avant 66 de la rainure 62 et la chambre 20 est en position de tir.The shaft 22 performs one complete revolution per operating cycle of the weapon. It rotates the screw 46 which, by means of the lower roller 50 of the carriage 52, transforms the rotation of the shaft 22 into a rectilinear back and forth movement of the carriage 52 in its guide rails 54. This rectilinear movement of the carriage 52 is, by means of the roller 60 engaged in the oblique groove 62, transformed into an oscillating movement back and forth of the chamber 20 between its loading position shown in FIG. 3, and its firing position shown in FIG. 4. More precisely, when the carriage 52 is in its extreme front position, the roller 60 of the part 56 is at the rear end 64 of the groove 62 and the chamber 20 is in the loading position, while, when the carriage 52 is in its extreme rear position, the roller 60 of the part 56 is at the front end 66 of the groove 62 and the chamber 20 is in the firing position.

La chambre 20 comporte à ses extrémités axiales deux collerettes circulaires 68 (figure 5) destinées à s'engager dans des rainures 70 de forme correspondante qui sont usinées aux extrémités du manchon 12 et de la culasse 16 (figures 8 et 9). Comme on peut le voir en figure 8 qui est une vue en perspective du manchon 12, chaque rainure 70 s'étend circulairement sur 180° et est prolongée à ses extrémités par deux rampes parallèles 72 de guidage entre lesquelles s'engage l'extrémité axiale correspondante de la chambre 20 lorsque celle- ci est amenée dans sa position de tir.The chamber 20 has at its axial ends two circular flanges 68 (Figure 5) intended to engage in grooves 70 of corresponding shape which are machined at the ends of the sleeve 12 and the cylinder head 16 (Figures 8 and 9). As can be seen in FIG. 8 which is a perspective view of the sleeve 12, each groove 70 extends circularly over 180 ° and is extended at its ends by two parallel guide ramps 72 between which the axial end engages corresponding to the chamber 20 when the latter is brought into its firing position.

Dans la position de tir de la chambre 20, les collerettes circulaires 68 engagées dans les rainures 70 du manchon 12 et de la culasse 16 assurent la liaison entre la culasse, la chambre et le manchon pendant le tir d'une munition, sans que l'on ait à prévoir une boîte de culasse comme dans une arme de type classique. Dans ces conditions, c'est la chambre 20 qui encaisse les efforts de traction pendant le tir d'une munition.In the firing position of the chamber 20, the circular flanges 68 engaged in the grooves 70 of the sleeve 12 and of the breech 16 ensure the connection between the breech, the chamber and the sleeve during firing of a munition, without the 'we have to provide a breech box as in a conventional weapon. Under these conditions, it is the chamber 20 which collects the tensile forces during the firing of an ammunition.

Comme on le voit également en figure 8, le manchon 12 comprend une rainure longitudinale 74 qui est formée dans toute l'épaisseur de sa paroi cylindrique et qui s'étend de l'extrémité arrière du manchon jusqu'au voisinage de son extrémité avant, pour permettre l'extraction d'une douille vide de munition par l'avant de la chambre 20 lorsque cette chambre est en position de chargement. Dans ces conditions, le débattement angulaire de la chambre 20 entre ses positions de tir et de chargement est juste suffisant pour que l'alésage de la chambre soit entièrement dégagé de l'extrémité arrière du tube 10, ce qui permet de limiter le déplacement angulaire de la chambre 20 à environ 30 et d'accélérer ainsi la cadence de tir.As can also be seen in FIG. 8, the sleeve 12 comprises a longitudinal groove 74 which is formed throughout the thickness of its cylindrical wall and which extends from the rear end of the sleeve to the vicinity of its front end, to allow the extraction of an empty ammunition socket from the front of the chamber 20 when this chamber is in the loading position. Under these conditions, the angular movement of the chamber 20 between its firing and loading positions is just sufficient so that the bore of the chamber is entirely released from the rear end of the tube 10, which makes it possible to limit the angular displacement from chamber 20 to around 30 and thus accelerate the rate of fire.

Par ailleurs, on prévoit un bras d'éjection 76 représenté schématiquement aux figures 10 et 11 pour déplacer une douille vide d'une position d'extraction où elle est partiellement engagée dans la rainure 74 du manchon 12 jusque dans une position d'éjection où elle est dégagée de cette rainure et alignée avec une goulotte d'éjection (non représentée).Furthermore, an ejection arm 76 shown diagrammatically in FIGS. 10 and 11 is provided for moving an empty sleeve from an extraction position where it is partially engaged in the groove 74 of the sleeve 12 as far as an ejection position where it is released from this groove and aligned with an ejection chute (not shown).

Le bras d'éjection 76 est, dans sa partie médiane, monté pivotant autour d'un axe longitudinal 78 sur le support de manchon 14, son extrémité supérieure étant destinée à s'appliquer sous une douille vide 80 extraite de la chambre, tandis que son extrémité inférieure comporte une lumière 82 dans laquelle est engagé un doigt 84 porté par l'un des bras 58 de la pièce 56 de support de la chambre 20. Dans la position de la figure 10, la chambre 20 est en position de chargement, l'extrémité supérieure du bras 76 s'applique sous une douille vide 80 extraite de la chambre et dont l'extrémité avant est en appui sur un chariot de retenue 86 déplaçable en mouvement rectiligne alternatif comme on le verra ci-après, la douille vide 80 étant également supportée dans cette position par la rainure longitudinale 74 du manchon 12. Lorsque la chambre basculante est amenée dans sa position de tir comme représenté en figure 11, le pivotement du bras 58 se traduit par une rotation du bras d'éjection 76 autour de l'axe 78 dans le sens des aiguilles d'une montre pour amener la douille 80 en position d'éjection.The ejection arm 76 is, in its middle part, pivotally mounted around a longitudinal axis 78 on the sleeve support 14, its upper end being intended to be applied under an empty socket 80 extracted from the chamber, while its lower end comprises a slot 82 in which is engaged a finger 84 carried by one of the arms 58 of the part 56 for supporting the chamber 20. In the position of FIG. 10, the chamber 20 is in the loading position, the upper end of the arm 76 is applied under an empty socket 80 extracted from the chamber and the front end of which is supported on a retaining carriage 86 movable in reciprocating rectilinear movement as will be seen below, the empty socket 80 also being supported in this position by the longitudinal groove 74 of the sleeve 12. When the tilting chamber is brought into its firing position as shown in FIG. 11, the pivoting of the arm 58 results in a rotat ion of the ejection arm 76 around the axis 78 clockwise to bring the socket 80 into the ejection position.

Dans cette position d'éjection, la douille vide 80 a été dégagée à son extrémité avant du chariot de retenue 86 qui peut alors être déplacé vers l'arrière comme on le verra également dans ce qui suit.In this ejection position, the empty socket 80 has been released at its front end from the retaining carriage 86 which can then be moved rearward as will also be seen in the following.

On se réfère maintenant aux figures 12 et suivantes pour décrire les moyens d'alimentation en munitions et leur fonctionnement.Reference is now made to FIGS. 12 et seq. To describe the means for supplying ammunition and their operation.

Dans l'exemple de la figure 12, l'étoile d'alimentation 28 montée sur l'arbre longitudinal 30 peut porter quatre munitions cylindriques télescopées 88 qui sont amenées successivement, par rotation de l'étoile 28 sur un cinquième de tour, dans une position inférieure au niveau du chariot d'alimentation 32 et en alignement axial avec la chambre 20 amenée dans sa position de chargement.In the example of FIG. 12, the feed star 28 mounted on the longitudinal shaft 30 can carry four telescoped cylindrical munitions 88 which are brought successively, by rotation of the star 28 on a fifth of a turn, in a position lower than the level of the feed carriage 32 and in axial alignment with the chamber 20 brought into its loading position .

Ce chariot d'alimentation 32 est guidé en déplacement rectiligne dans deux glissières longitudinales 90 qui relient rigidement la boîte arrière 38 à la culasse 16, le chariot 32 étant ainsi disposé entre l'étoile d'alimentation 28 et la vis d'alimentation 34.This feed carriage 32 is guided in rectilinear movement in two longitudinal slides 90 which rigidly connect the rear box 38 to the cylinder head 16, the carriage 32 thus being disposed between the feed star 28 and the feed screw 34.

Celle-ci comporte une rainure hélicoïdale étagée 92 (figures 1 et 2) dans laquelle sont engagés un galet 94 et un patin de glissement 96 qui sont verticalement superposés et fixés sous le chariot 32. Le galet 94 est engagé dans la partie la plus large de la rainure 92 tandis que le patin 96 est engagé dans la partie la plus étroite et contribue au passage du galet dans les intersections de la rainure 92 de la vis pendant la rotation de celle-ci, cette rainure 92 étant à pas croisés pour permettre un mouvement aller retour du chariot 32 lors de la rotation continue de la vis 34 dans un sens déterminé. La vis 34 est entraînée en rotation à une vitesse trois fois plus élevée que l'arbre 22 de déplacement de la chambre basculante 20.This comprises a stepped helical groove 92 (Figures 1 and 2) in which are engaged a roller 94 and a sliding shoe 96 which are vertically superimposed and fixed under the carriage 32. The roller 94 is engaged in the widest part of the groove 92 while the shoe 96 is engaged in the narrowest part and contributes to the passage of the roller in the intersections of the groove 92 of the screw during the rotation of the latter, this groove 92 being not crossed to allow a back and forth movement of the carriage 32 during the continuous rotation of the screw 34 in a determined direction. The screw 34 is rotated at a speed three times higher than the shaft 22 for moving the tilting chamber 20.

Quand le chariot 32 est en position arrière et qu'il commence à se déplacer vers l'avant, il vient prendre appui sur l'extrémité arrière d'une munition 88 de l'étoile d'alimentation 28 et pousse cette munition vers l'avant pour l'introduire dans la chambre 20 en position de chargement.When the carriage 32 is in the rear position and it begins to move forward, it comes to bear on the rear end of a munition 88 of the supply star 28 and pushes this ammunition towards the before to introduce it into chamber 20 in the loading position.

Le chariot d'alimentation 32 est relié au chariot de retenue 86 décrit en référence aux figures 10 et 11, par l'intermédiaire d'une tige rigide 98 et d'un support de verrou 100 (figures 13 et suivantes), le chariot de retenue 86 étant lui-même guidé en translation sur deux tiges longitudinales parallèles 102 qui sont fixées à leurs extrémités sur le manchon 12 et sur le support 14 de manchon, respectivement (figure 1).The feed carriage 32 is connected to the retaining carriage 86 described with reference to FIGS. 10 and 11, by means of a rigid rod 98 and a latch support 100 (FIGS. 13 et seq.), The carriage retainer 86 being itself guided in translation on two parallel longitudinal rods 102 which are fixed at their ends to the sleeve 12 and to the sleeve support 14, respectively (FIG. 1).

Le chariot 32 comprend une patte latérale 104 engagée dans une lumière allongée du support de verrou 100 et permettant un déplacement longitudinal limité du chariot 32 par rapport au support de verrou 100. Un verrou 106, tel qu'un rouleau ou une bille, est engagé dans une petite rainure transversale du support 100 et dans une rainure longitudinale 108 de la structure rigide, aux extrémités de laquelle sont prévus des pions de blocage 110 sollicités par des ressorts pour venir s'engager dans une encoche 112 du support de verrou et immobiliser celui-ci en position. Par ailleurs, la patte 104 du chariot 32 comporte deux rainures parallèles 114 dans chacune desquelles le verrou 106 peut s'engager partiellement pour solidariser le chariot 32 et le support de verrou 100.The carriage 32 comprises a lateral tab 104 engaged in an elongated opening in the latch support 100 and allowing limited longitudinal movement of the carriage 32 relative to the latch support 100. A latch 106, such as a roller or a ball, is engaged in a small transverse groove of the support 100 and in a longitudinal groove 108 of the rigid structure, at the ends of which are provided locking pins 110 biased by springs to come to engage in a notch 112 of the lock support and immobilize that here in position. Furthermore, the tab 104 of the carriage 32 has two parallel grooves 114 in each of which the lock 106 can partially engage in order to secure the carriage 32 and the lock support 100.

Ces moyens d'alimentation en munitions fonctionnent de la façon suivante, décrite en référence aux figures 13 et suivantes.These ammunition supply means operate in the following manner, described with reference to FIGS. 13 and following.

En figure 13, la chambre 20 est dans sa position de chargement, en alignement axial avec le chariot 32 et une munition 88 portée par l'étoile 28. La chambre 20 comprend la douille vide 80 d'une munition qui vient d'être tirée, le chariot de retenue 86 étant à quelques millimètres de la face avant de la chambre 20, tandis que le chariot d'alimentation 32 est à quelques millimètres de la munition 88 à charger dans la chambre 20.In FIG. 13, the chamber 20 is in its loading position, in axial alignment with the carriage 32 and a munition 88 carried by the star 28. The chamber 20 comprises the empty socket 80 of a munition which has just been fired , the retaining carriage 86 being a few millimeters from the front face of the chamber 20, while the supply carriage 32 is a few millimeters from the ammunition 88 to be loaded into the chamber 20.

Dans la position des figures 13 et 14, le verrou 106 n'est pas engagé dans une rainure 114 de la patte latérale du chariot 32, de sorte que celui-ci peut être déplacé vers l'avant sur une faible distance sans entraîner le support de verrou 100, pour rattraper les jeux nécessaires au fonctionnement (jeux entre l'extrémité avant du chariot 32 et l'extrémité arrière de la munition 88, entre l'extrémité avant de la munition 88 et l'extrémité arrière de la chambre 20, et entre l'extrémité avant de la chambre 20 et le chariot de retenue 86).In the position of FIGS. 13 and 14, the lock 106 is not engaged in a groove 114 on the side tab of the carriage 32, so that the latter can be moved forward over a short distance without driving the support. lock 100, to make up for the play required for operation (play between the front end of the carriage 32 and the rear end of the ammunition 88, between the front end of the ammunition 88 and the rear end of the chamber 20, and between the front end of the chamber 20 and the retaining carriage 86).

Pendant ce petit déplacement vers l'avant du chariot 32 (figures 15 et 16), le support de verrou 100 est immobilisé par un pion 110 qui est engagé dans l'encoche 112 de ce support.During this small forward movement of the carriage 32 (Figures 15 and 16), the latch support 100 is immobilized by a pin 110 which is engaged in the notch 112 of this support.

Dès que les jeux ont été rattrapés et que la patte latérale 104 du chariot 32 est en appui sur l'extrémité avant de la lumière du support de verrou, le verrou 106, guidé par la rainure 108, vient s'engager dans une rainure 114 de la patte 104 et solidarise le chariot 32 et le support de verrou 100. Le support de verrou est alors entraîné vers l'avant par le chariot 32 et se dégage du pion 110, en comprimant le ressort de ce pion.As soon as the clearances have been caught up and the side tab 104 of the carriage 32 is in abutment on the front end of the slot of the lock support, the lock 106, guided by the groove 108, engages in a groove 114 of the tab 104 and secures the carriage 32 and the lock support 100. The lock support is then driven forward by the carriage 32 and emerges from the pin 110, compressing the spring of this pin.

Le chariot 32 continue son déplacement vers l'avant (figures 17 à 20) pour introduire la munition 88 dans la chambre 20, cette munition 88 poussant la douille vide 80 à l'extérieur de la chambre pour l'engager sur la rainure longitudinale 74 du support de manchon 12 (figure 8), où elle est également supportée par l'extrémité supérieure du bras d'éjection 76 (figure 10). Pendant ce mouvement d'extraction, l'extrémité avant de la douille vide 80 est en appui sur le chariot de retenue 86, qui est lui-même déplacé vers l'avant sur les tiges 102.The carriage 32 continues to move forward (Figures 17 to 20) to introduce the ammunition 88 into the chamber 20, this ammunition 88 pushing the empty socket 80 outside the chamber to engage it on the longitudinal groove 74 sleeve support 12 (Figure 8), where it is also supported by the upper end of the ejection arm 76 (Figure 10). During this extraction movement, the front end of the empty socket 80 is in abutment on the retaining carriage 86, which is itself moved forward on the rods 102.

En fin de course (figures 21 et 22), l'extrémité avant du chariot 32 pénètre légèrement à l'intérieur de la chambre 20, ce qui permet de garantir que la douille vide 80 a été complètement extraite de la chambre 20, en dépit des variations de longueur des douilles, qui sont dues aux tolérances de fabrication, aux variations des conditions d'ambiance et aux variations des conditions de tir.At the end of the race (Figures 21 and 22), the front end of the carriage 32 penetrates slightly inside the chamber 20, which guarantees that the empty socket 80 has been completely extracted from the chamber 20, despite variations in the length of the casings, which are due to manufacturing tolerances, variations in the ambient conditions and variations in the firing conditions.

Dans cette position extrême avant, le verrou 106 est dégagé de la rainure 114 de la patte latérale du chariot 32, le support de verrou 100 est immobilisé par un pion 110 et le chariot 32 est désolidarisé du support de verrou (figure 22).In this extreme forward position, the latch 106 is released from the groove 114 of the side tab of the carriage 32, the lock support 100 is immobilized by a pin 110 and the carriage 32 is detached from the lock support (FIG. 22).

Le chariot 32 peut alors se déplacer vers l'arrière sur une courte distance pour se dégager de la chambre 20 (figures 23 et 24), sans entraîner le support de verrou et donc sans déplacer vers l'arrière le chariot de retenue 86. Pendant ce temps, la douille vide 80 est déplacée de sa position d'extraction dans sa position d'éjection par le bras d'éjection 76 (figure 11), ce qui libère le passage vers l'arrière du chariot de retenue 86. Simultanément, la chambre 20 est déplacée vers sa position de tir pour amener la munition 88 en alignement axial avec le système de percussion 42 et avec le tube 10.The carriage 32 can then move rearward over a short distance to disengage from the chamber 20 (FIGS. 23 and 24), without driving the lock support and therefore without moving the retaining carriage 86 backwards. this time, the empty socket 80 is moved from its extraction position to its ejection position by the ejection arm 76 (FIG. 11), which frees the passage to the rear of the retaining carriage 86. Simultaneously, the chamber 20 is moved to its firing position to bring the ammunition 88 into axial alignment with the percussion system 42 and with the tube 10.

Pendant ce mouvement, une came de calibrage 116 située à l'avant de la chambre 20 permet de repositionner correctement la munition 88 à l'intérieur de la chambre 20. Quand la chambre 20 est dans sa position de tir, le chariot d'alimentation 32 est à nouveau solidarisé du support de verrou 100 par le verrou 106 engagé dans une rainure 114 de la patte latérale du chariot 32, de sorte que le chariot 32, le support de verrou 100 et le chariot de retenue 86 peuvent être ramenés dans leur position arrière des figures 13 et 14.During this movement, a calibration cam 116 located at the front of the chamber 20 makes it possible to correctly reposition the ammunition 88 inside the chamber 20. When the chamber 20 is in its firing position, the feed carriage 32 is again secured to the latch support 100 by the latch 106 engaged in a groove 114 in the side tab of the carriage 32, so that the carriage 32, the latch support 100 and the retaining carriage 86 can be brought back into their rear position of Figures 13 and 14.

De façon générale, le fonctionnement de l'arme selon l'invention est le suivant :

  • en position arrêt sur détente, la chambre 20 est dans sa position de chargement, le chariot 52 de déplacement de la chambre est en position avant, le chariot d'alimentation 32 est en position arrière, une munition 88 portée par l'étoile d'alimentation 28 est prête à être introduite dans la chambre, et un système détente-sécurité long feu prévu dans la boîte arrière 38 bloque tout déplacement de pièces et donc tout mouvement dans l'ensemble de l'arme;
  • en début de cycle de tir, l'électro-aimant 44 associé à la boîte arrière 38 commande le déblocage du système détente-sécurité long feu, le moteur électrique 26 commence à tourner et entraîne en rotation l'arbre 22 et la vis d'alimentation 34. Le chariot d'alimentation 32 introduit une munition dans la chambre 20, ce qui provoque l'extraction de la douille vide de la munition précédemment tirée et son amenée en position d'éjection;
  • la chambre 20 entraînée par le chariot 52 qui recule est amenée en position de tir dans l'axe du tube, le chariot 52 cesse de déplacer la chambre 20 et la percussion de la munition est commandée par la boîte arrière 38. Le chariot d'alimentation 32 commence à reculer dès que la chambre 20 se trouve au voisinage immédiat de sa position de tir;
  • la sécurité long feu est utilisée dans le cas d'un mauvais fonctionnement du système de percussion, de l'amorce de la munition ou de tout autre incident n'indiquant pas un recul de l'arme et donc une possibilité de long feu. Cette sécurité permet de bloquer instantanément tout mouvement dans la boîte arrière et dans l'ensemble de l'arme, de façon à ce que la chambre reste dans l'axe du tube, et une temporisation coupe le circuit d'alimentation du moteur électrique. Une autre temporisation permet ensuite de débloquer la sécurité long feu et d'alimenter à nouveau le moteur électrique, l'arme venant se remettre en position arrêt sur détente;
  • après le tir d'une munition, l'arbre 22 est entraîné en rotation pour renvoyer le chariot 52 vers l'avant et déplacer la chambre basculante 20 vers la position de chargement. Le chariot d'alimentation 32 termine son mouvement de recul et l'étoile d'alimentation est entraînée sur une fraction de tour pour placer une nouvelle munition dans l'axe de la chambre;
  • si l'on décide alors d'arrêter le tir, l'électro-aimant 44 n'est plus excité, le système détente-sécurité long feu bloque l'arme en position arrêt sur détente, et le moteur électrique 26 n'est plus alimenté;
  • si l'on décide au contraire de continuer le tir, l'électro-aimant 44 excité débloque la boîte arrière pour le chargement d'une nouvelle munition dans la chambre 20, et ainsi de suite.
In general, the operation of the weapon according to the invention is as follows:
  • in the stop on trigger position, the chamber 20 is in its loading position, the carriage 52 for moving the chamber is in the front position, the supply carriage 32 is in the rear position, a munition 88 carried by the star power supply 28 is ready to be introduced into the chamber, and a long-range trigger-safety system provided in the rear box 38 blocks any movement of parts and therefore any movement throughout the weapon;
  • at the start of the firing cycle, the electromagnet 44 associated with the rear box 38 controls the release of the long-range trigger-safety system, the electric motor 26 begins to rotate and rotates the shaft 22 and the screw supply 34. The supply trolley 32 introduces ammunition into the chamber 20, which causes the empty cartridge case to be extracted from the ammunition previously drawn and brought into the ejection position;
  • the chamber 20 driven by the carriage 52 which moves back is brought into the firing position in the axis of the tube, the carriage 52 ceases to move the chamber 20 and the percussion of the ammunition is controlled by the rear box 38. The carriage supply 32 begins to recede as soon as the chamber 20 is in the immediate vicinity of its firing position;
  • Long-term safety is used in the event of a malfunction of the percussion system, the initiation of the ammunition or any other incident not indicating a retreat of the weapon and therefore a possibility of long-term fire. This security makes it possible to instantly block any movement in the rear box and in the whole of the weapon, so that the chamber remains in the axis of the tube, and a time delay cuts the power supply circuit of the electric motor. Another time delay then enables the long-term security to be released and the electric motor to be powered again, the weapon coming back to the stop on trigger position;
  • after firing an ammunition, the shaft 22 is rotated to return the carriage 52 forward and move the tilting chamber 20 to the loading position. The feed carriage 32 ends its recoil movement and the feed star is driven on a fraction of a turn to place a new munition in the axis of the chamber;
  • if we then decide to stop firing, the electromagnet 44 is no longer energized, the trigger-safety system long fire blocks the weapon in the stop on trigger position, and the electric motor 26 is no longer supplied;
  • if on the contrary it is decided to continue firing, the energized electromagnet 44 unlocks the rear box for loading new ammunition into chamber 20, and so on.

On comprend que l'arme selon l'invention permet d'effectuer un tir flottant sans attendre le retour en batterie des pièces reculantes, c'est-à-dire un tir à cadence très élevée. Dans ce cas, l'étoile d'alimentation 28 est, de façon connue, elle-même alimentée en munitions à partir d'un magasin par des moyens qui suivent automatiquement les mouvements de recul et de retour en batterie de l'arme.It will be understood that the weapon according to the invention makes it possible to carry out a floating shot without waiting for the receding parts to return to the battery, that is to say a shot at a very high rate. In this case, the supply star 28 is, in known manner, itself supplied with ammunition from a magazine by means which automatically follow the movements of recoil and return to the battery of the weapon.

Claims (13)

Arme automatique à chambre basculante pour le tir de munitions cylindriques télescopées, telle par exemple qu'un canon de moyen calibre, comprenant une chambre (20) de réception d'une munition, agencée entre une culasse (16) et un tube (10) et montée basculante entre une position de chargement et une position de tir par pivotement autour d'un arbre excentré (22) parallèle au tube (10), des moyens de déplacement de la chambre entre ces deux positions, et des moyens d'alimentation de la chambre en munitions, caractérisée en ce que la culasse (16), le tube (10) et l'arbre (22) de pivotement de la chambre (20) sont portés fixement par une même structure rigide qui porte également les moyens (28, 32, 34) d'alimentation en munitions ainsi que des moyens à moteur électrique (26) d'entraînement des moyens de déplacement de la chambre (20) et des moyens d'alimentation en munitions, ces derniers étant disposés derrière la chambre en alignement axial avec celle-ci dans sa position de chargement et comprenant des moyens (32) de déplacement d'une munition (88) en translation axiale entre une position d'alimentation et la chambre (20) dans sa position de chargement, l'introduction d'une munition (88) par l'extrémité arrière de la chambre provoquant l'extraction par l'extrémité avant de cette chambre d'une douille vide (80) d'une munition précédemment tirée.Automatic weapon with tilting chamber for firing telescoped cylindrical munitions, such as for example a medium caliber cannon, comprising a chamber (20) for receiving an ammunition, arranged between a breech (16) and a tube (10) and pivotally mounted between a loading position and a firing position by pivoting around an eccentric shaft (22) parallel to the tube (10), means for moving the chamber between these two positions, and means for feeding the ammunition chamber, characterized in that the cylinder head (16), the tube (10) and the pivot shaft (22) of the chamber (20) are fixedly carried by the same rigid structure which also carries the means (28 , 32, 34) for supplying ammunition as well as means with an electric motor (26) for driving the means for moving the chamber (20) and means for supplying ammunition, the latter being arranged behind the chamber in axial alignment with it in its pos loading ition and comprising means (32) for moving a munition (88) in axial translation between a feeding position and the chamber (20) in its loading position, introducing a munition (88) by the rear end of the chamber causing the extraction by the front end of this chamber of an empty socket (80) of a previously fired ammunition. Arme selon la revendication 1, caractérisée en ce que l'arbre (22) de pivotement de la chambre (20) est entraîné en rotation autour de son axe par les moyens à moteur électrique (26) et est relié à la chambre par des moyens de transmission (50, 52, 60) transformant le mouvement de rotation de l'arbre (22) en une oscillation alternative de la chambre entre ses positions de chargement et de tir.Weapon according to claim 1, characterized in that the pivot shaft of the chamber (20) is rotated about its axis by the electric motor means (26) and is connected to the chamber by means transmission (50, 52, 60) transforming the rotational movement of the shaft (22) into an alternative oscillation of the chamber between its loading and firing positions. Arme selon la revendication 2, caractérisée en ce que les moyens de transmission comprennent d'une part un chariot (52) guidé en translation sur ladite structure rigide parallèlement à l'arbre (22) de pivotement de la chambre et déplacé en mouvement alternatif rectiligne par ledit arbre (22) au moyen d'un galet (50) porté par le chariot et engagé dans une rainure hélicoï- dale (48) de l'arbre, et d'autre part un galet (60) solidaire de la chambre et engagé dans une rainure oblique (62) dudit chariot (52).Weapon according to claim 2, characterized in that the transmission means comprise of share a carriage (52) guided in translation on said rigid structure parallel to the shaft (22) for pivoting the chamber and moved in rectilinear reciprocating movement by said shaft (22) by means of a roller (50) carried by the carriage and engaged in a helical groove (48) of the shaft, and on the other hand a roller (60) integral with the chamber and engaged in an oblique groove (62) of said carriage (52). Arme selon la revendication 3, caractérisée en ce que la chambre (20) est portée à ses extrémités axiales par deux bras parallèles (58) montés à rotation sur l'arbre (22) précité, ledit chariot (52) étant disposé entre la chambre (20) et l'arbre (22).Weapon according to claim 3, characterized in that the chamber (20) is carried at its axial ends by two parallel arms (58) mounted for rotation on the aforementioned shaft (22), said carriage (52) being disposed between the chamber (20) and the tree (22). Arme selon l'une des revendications précédentes, caractérisée en ce que la chambre (20) comporte à ses extrémités axiales des collerettes circulaires (68) destinées à s'engager, quand la chambre est amenée dans sa position de tir, dans des rainures correspondantes (70) de la culasse (16) et d'un manchon (12) de support du tube (10).Weapon according to one of the preceding claims, characterized in that the chamber (20) has at its axial ends circular flanges (68) intended to engage, when the chamber is brought into its firing position, in corresponding grooves (70) of the cylinder head (16) and of a sleeve (12) for supporting the tube (10). Arme selon la revendication 5, caractérisée en ce que la paroi du manchon (12) de support du tube (10) comporte une rainure longitudinale (74) formée sur une partie de sa longueur depuis son extrémité arrière, pour la réception d'une douille vide (80) extraite de la chambre (20) dans sa position de chargement.Weapon according to claim 5, characterized in that the wall of the sleeve (12) for supporting the tube (10) has a longitudinal groove (74) formed over part of its length from its rear end, for receiving a socket vacuum (80) extracted from the chamber (20) in its loading position. Arme selon la revendication 6, caractérisée en ce qu'un bras (76) d'éjection de douilles est monté pivotant autour d'un axe longitudinal (78) sur ladite structure rigide, l'extrémité supérieure de ce bras étant destinée à s'appuyer sur une douille vide (80) extraite de la chambre, l'extrémité inférieure de ce bras étant liée à un bras (58) de support de la chambre, de sorte qu'une douille vide extraite de la chambre est déplacée vers une position d'éjection par l'extrémité supérieure du bras d'éjection (76) quand la chambre (20) est déplacée de sa position de chargement vers sa position de tir.Weapon according to claim 6, characterized in that a sleeve ejection arm (76) is pivotally mounted about a longitudinal axis (78) on said rigid structure, the upper end of this arm being intended to press an empty socket (80) extracted from the chamber, the lower end of this arm being linked to a support arm (58) of the chamber, so that an empty socket extracted from the chamber is moved to a position ejection by the upper end of the ejection arm (76) when the chamber (20) is moved from its loading position to its firing position. Arme selon la revendication 6 ou 7, caractérisée en ce que le déplacement axial d'une douille vide (80) extraite de la chambre est limité par un chariot de retenue (86) guidé en translation sur ladite structure rigide et formant butée d'appui de l'extrémité avant de la douille vide (80), ce chariot de retenue (86) étant entraîné en mouvement alternatif rectiligne par les moyens d'alimentation de la chambre en munitions.Weapon according to claim 6 or 7, characterized in that the axial displacement of an empty socket (80) extracted from the chamber is limited by a retaining carriage (86) guided in translation on said rigid structure and forming a support stop from the front end of the empty socket (80), this retaining carriage (86) being driven in rectilinear reciprocating movement by the means for supplying the chamber with ammunition. Arme selon l'une des revendications précédentes, caractérisée en ce que les moyens d'alimentation de la chambre en munitions comprennent un chariot d'alimentation (32) guidé en translation sur ladite structure rigide et déplaçable en mouvement alternatif rectiligne pour entraîner une munition (88) à partir d'une position d'alimentation située en arrière de la chambre dans sa position de chargement et l'introduire dans la chambre par translation axiale, ce chariot (32) comportant un galet (94) engagé dans une rainure hélicoï- dale (92) d'une vis longitudinale (43) entraînée en rotation par les moyens à moteur électrique (26).Weapon according to one of the preceding claims, characterized in that the means for supplying the chamber with ammunition comprise a supply carriage (32) guided in translation on said rigid structure and movable in rectilinear reciprocating movement to drive ammunition ( 88) from a feed position located behind the chamber in its loading position and introduce it into the chamber by axial translation, this carriage (32) comprising a roller (94) engaged in a helical groove dale (92) of a longitudinal screw (43) rotated by the electric motor means (26). Arme selon l'ensemble des revendications 8 et 9, caractérisée en ce que le chariot d'alimentation (32) est relié au chariot de retenue (86) par une tige rigide (98) et par des moyens (100, 106) de rattrapage des jeux de fonctionnement.Weapon according to all of claims 8 and 9, characterized in that the feed carriage (32) is connected to the retaining carriage (86) by a rigid rod (98) and by means (100, 106) of take-up working games. Arme selon l'une des revendications précédentes, caractérisée en ce que les moyens d'alimentation en munitions comprennent également une étoile d'alimentation (28) portant un certain nombre de munitions et montée rotative autour d'un axe longitudinal (30) sur ladite structure rigide, en arrière de la chambre (20), pour positionner successivement les munitions dans l'axe de la chambre dans sa position de chargement.Weapon according to one of the preceding claims, characterized in that the ammunition supply means also comprise a supply star (28) carrying a certain number of ammunition and rotatably mounted about a longitudinal axis (30) on said rigid structure, behind the chamber (20), for successively positioning the ammunition in the axis of the chamber in its loading position. Arme selon l'une des revendications précédentes, caractérisée en ce que le déplacement angulaire de la chambre (20) entre ses positions de chargement et de tir est de l'ordre de 30°.Weapon according to one of the preceding claims, characterized in that the angular displacement of the chamber (20) between its loading and firing positions is of the order of 30 °. Arme selon l'une des revendications précédentes, caractérisée en ce qu'elle permet un tir flottant à cadence élevée, le tir d'une munition pouvant être effectué avant le retour en batterie de la structure rigide précitée.Weapon according to one of the preceding claims, characterized in that it allows a floating shot at a high rate, the firing of an ammunition being able to be carried out before the above-mentioned rigid structure is returned to the battery.
EP93401294A 1992-05-22 1993-05-19 Automatic firearm having a tiltable cartridge chamber for firing telescopic cyclindrical ammunition Expired - Lifetime EP0571285B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206278 1992-05-22
FR929206278A FR2691531B1 (en) 1992-05-22 1992-05-22 Automatic weapon with tilting chamber for firing telescoped cylindrical ammunition.

Publications (2)

Publication Number Publication Date
EP0571285A1 true EP0571285A1 (en) 1993-11-24
EP0571285B1 EP0571285B1 (en) 1996-12-27

Family

ID=9430080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401294A Expired - Lifetime EP0571285B1 (en) 1992-05-22 1993-05-19 Automatic firearm having a tiltable cartridge chamber for firing telescopic cyclindrical ammunition

Country Status (5)

Country Link
US (1) US5353678A (en)
EP (1) EP0571285B1 (en)
JP (1) JPH0634297A (en)
DE (1) DE69306857D1 (en)
FR (1) FR2691531B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9903440L (en) 1999-09-23 2001-02-26 Bofors Weapon Sys Ab Method and apparatus for loading artillery pieces by casting
US6637310B2 (en) 2001-03-01 2003-10-28 United Defense L.P. Rotatable breech gun
JP5102173B2 (en) * 2008-10-20 2012-12-19 住友重機械工業株式会社 Loading device and machine gun unit
DE102008060215A1 (en) 2008-12-04 2010-06-10 Rheinmetall Waffe Munition Gmbh Drive and quick stop for a weapon with preferably linear closure or ammunition supply
DE102008060214A1 (en) 2008-12-04 2010-06-10 Rheinmetall Waffe Munition Gmbh Shutter drive for a weapon with linear shutter or ammunition supply
DE102008060217A1 (en) 2008-12-04 2010-06-10 Rheinmetall Waffe Munition Gmbh Shutter drive for a weapon
DE102008060216A1 (en) * 2008-12-04 2010-06-10 Rheinmetall Waffe Munition Gmbh Drive and quick stop for a weapon with preferably linear closure or ammunition supply
KR101222463B1 (en) 2010-09-03 2013-01-15 국방과학연구소 Electric percussion apparatus for bullet and fragment impact test and driving method for the same
RS59153B1 (en) * 2015-07-10 2019-10-31 Rheinmetall Waffe Munition Gmbh Weapon drive and weapon drive with an emergency weapon stop
US10168119B2 (en) 2016-12-23 2019-01-01 Magpul Industries Corp. Firearm bipod

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760683A (en) * 1971-06-01 1973-09-25 Gen Electric Multi barrel automatic weapon
US4357857A (en) * 1979-07-05 1982-11-09 Paccar Inc. Loading apparatus for rapid fire weapon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318191A (en) * 1965-07-09 1967-05-09 Frederick P Reed Machine gun with a mount for reducing the recoil forces applied to the trunnions
DE3118383A1 (en) * 1981-05-09 1982-11-25 Rheinmetall GmbH, 4000 Düsseldorf LOADING DEVICE FOR AN AUTOMATIC CROSS-LOCKING TUBE ARM
US4697496A (en) * 1985-06-17 1987-10-06 Hughes Helicopters, Inc. Method and apparatus for handling beltless ammunition in a twin-barreled gun

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760683A (en) * 1971-06-01 1973-09-25 Gen Electric Multi barrel automatic weapon
US4357857A (en) * 1979-07-05 1982-11-09 Paccar Inc. Loading apparatus for rapid fire weapon

Also Published As

Publication number Publication date
FR2691531B1 (en) 1994-08-12
JPH0634297A (en) 1994-02-08
US5353678A (en) 1994-10-11
EP0571285B1 (en) 1996-12-27
FR2691531A1 (en) 1993-11-26
DE69306857D1 (en) 1997-02-06

Similar Documents

Publication Publication Date Title
EP0717254B1 (en) Fire arm
EP0571285B1 (en) Automatic firearm having a tiltable cartridge chamber for firing telescopic cyclindrical ammunition
CA1332524C (en) Automatic cylinder firearm with high rate of fire
EP0023441A1 (en) Military equipment comprising a turret supporting a heavy gun on the outside
EP0200584B1 (en) Externally powered automatic gun
EP0140782B1 (en) Device for feeding and loading a gun with ammunition in any elevation or azimuth position
EP0129457B1 (en) Double ammunition feed mechanism for automatic weapons
FR2624961A1 (en) HEART CORNER FOR ARTILLERY GUN
EP0571265A1 (en) Ammunition loading system for a pivoting cartridge chamber
EP0786068B1 (en) Small or medium gauge multitube automatic fire arm of the gatling type, particularly intended to the firing of telescoped ammunition
EP0125176B1 (en) Military equipment comprising a turret provided with a mainly external gun
EP0571266B1 (en) Ammunition loading system for a pivoting cartridge chamber
FR2485714A1 (en) ALTERNATE FEEDING MECHANISM ON AN AUTOMATIC CYLINDER HEAD GUN WITH AXIAL OPENING
EP0733872B1 (en) Multibarrel fire arm of the Gatling type having sliding cartridge chambers
CH690285A5 (en) An ammunition feed for a gun.
WO2023242648A1 (en) Large-calibre firearm with multiple-chamber breech assembly
FR2925149A1 (en) Semi-automatic ammunition feed magazine, has cells arranged along drive train following pitch delimited by spacing of axles of consecutive cells, where drive train drives set of cells in rotation
FR2623607A1 (en) RECTILINE-MOVED CYLINDER HEAD FOR AN AUTOMATIC FIREARM, ESPECIALLY FOR A QUICK-FIRE GUN
EP0024997B1 (en) Automatic feeding device for primer cartridges of a gun
EP0362066A1 (en) Quick-firing medium-calibre automatic gun
FR2729463A1 (en) CONTINUOUS LOADING DEVICE, FOR A BARREL WEAPON IN PARTICULAR DRIVEN BY A GAS PRESSURE
BE1010259A5 (en) System of a gun; charger and was to such a system.
EP0599683A1 (en) Ammunition loading method for a pivoting cartridge chamber, and system for application
FR2667685A1 (en) Automatic loading device for a firearm
EP0153242A1 (en) Automatic ammunition loading system for a gun

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE GB LI SE

17P Request for examination filed

Effective date: 19940509

17Q First examination report despatched

Effective date: 19950830

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CTA INTERNATIONAL

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE GB LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19961227

REF Corresponds to:

Ref document number: 69306857

Country of ref document: DE

Date of ref document: 19970206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970328

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970531

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19961227

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL