EP3877718B1 - Weapon assembly and turret comprising such an assembly - Google Patents

Weapon assembly and turret comprising such an assembly Download PDF

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Publication number
EP3877718B1
EP3877718B1 EP19813651.7A EP19813651A EP3877718B1 EP 3877718 B1 EP3877718 B1 EP 3877718B1 EP 19813651 A EP19813651 A EP 19813651A EP 3877718 B1 EP3877718 B1 EP 3877718B1
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EP
European Patent Office
Prior art keywords
weapon
mass
assembly
turret
recoiling
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EP19813651.7A
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German (de)
French (fr)
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EP3877718A1 (en
Inventor
Xavier DESCATOIRE
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Nexter Systems SA
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Nexter Systems SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
    • F41A27/30—Stabilisation or compensation systems, e.g. compensating for barrel weight or wind force on the barrel
    • 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
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/24—Turret gun mountings
    • 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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes

Definitions

  • the technical field of the invention is that of weapon mounts for military vehicles and turrets comprising such mounts.
  • Such a mounting on a turret requires during firing to have a clearance in the central part of the turret located under the plane of rotation in bearing of the turret so that the pointing and the recoil of the weapon can be done until under this plane without interference.
  • This clearance is conventionally formed by a turret well penetrating the chassis of the vehicle as visible in the patent US4838144 .
  • This type of turret well is cumbersome and constitutes a zone of vulnerability for the vehicle which is obliged to include a substantial opening at the level of the chassis in order to be able to receive the turret basket.
  • the invention proposes to solve this problem of bulk and vulnerability.
  • the invention also solves a problem of accessibility to the superstructure through the turret which, according to the state of the art, is made difficult by the presence of the breech of the weapon.
  • the subject of the invention is thus a weapon assembly comprising an oscillating mass which pivots in elevation with respect to a mounting, to allow aiming, and thus comprises pins intended to interface with a tank turret, the oscillating mass also incorporating a recoiling mass which translates relative to the trunnions when fired, the recoiling mass comprising in particular a weapon, weapon mounting in which the trunnions are located behind the center of gravity of the recoiling mass and in that a counterweight is intended to longitudinally counterbalance the weight of the recoiling mass at rest so as to place the center of gravity of the oscillating mass at the level of the trunnions, weapon assembly characterized in that at least one trunnion is integral with a first end of an arm which is therefore integral with the oscillating weight, arm carrying the counterweight at its second end, the counterweight comprising at least one ballistic armor plate and/or at least one functional means constituted by a sight and/or by secondary armament.
  • the assembly comprises two arms each located on either side of the oscillating weight, each arm carrying a counterweight.
  • the secondary armament may comprise a grenade launcher.
  • the secondary armament may include a medium-caliber machine gun.
  • the invention also relates to a turret for a military vehicle pivoting in bearing around a bearing separating the turret from the vehicle and defining a laying plane, turret characterized in that it comprises a weapon mounting according to one of the previous characteristics, an assembly in which the distance D between the journals and the center of gravity of the recoiling mass for a given mounting plane height is chosen so that when the oscillating mass is at its maximum site and the recoiling mass at its maximum recoil, the recoiling mass is above the landing plane.
  • a tank turret 100 includes a weapon mounting 1.
  • Weapon mount 1 has 2 trunnions (which will be best seen at the picture 2 ), integral with the turret 100 at the level of a mounting 3 integral with the shell 4 of the turret 100.
  • the weapon assembly 1 comprises a large caliber weapon 5a (caliber greater than 40 mm) integral with the assembly 1 at the level of the pins which constitute axes 2 of pivoting in elevation for the oscillating weight 10 carrying the weapon 5a.
  • a large caliber weapon 5a caliber greater than 40 mm
  • oscillating weight 10 designates all the elements of the weapon assembly 1 which pivot in elevation around the journals 2.
  • recoiling mass 5 designates all the elements of the weapon assembly 1 which recoil when shooting.
  • an oscillating mass 10 comprises in particular the recoiling mass 5 and the cradle which receives and guides the latter during recoil.
  • a recoiling mass 5 comprises in particular the weapon 5a itself with its tube and its breech 8 and the part of the recoil brakes (not shown) which accompanies the recoil (the fixed part of the brakes remains linked to the cradle).
  • Each pin 2 is secured to a first end of an arm 6 located on either side of the oscillating weight 10.
  • the second end of each arm 6 includes a counterweight 7.
  • Each counterweight 7 here comprises an armor plate 7a substantially perpendicular to the longitudinal axis of the recoiling mass 5 of the weapon 5a in order to ballistically protect the parts of the turret 100 situated behind these plates 7a.
  • the counterweights may advantageously comprise functional means of the turret, that is to say means exercising an operational function other than that of counterweight, for example target acquisition equipment (sights, designators) or defense equipment (secondary armaments, turrets, close defense systems).
  • a first counterweight 7 located to the right of the recoiling mass 5 comprises for example a sight 7b whereas a second counterweight 7 here comprises a secondary armament 7e which comprises a grenade launcher 7c as well as a medium caliber machine gun 7d.
  • the weapon assembly 1 alone with the recoiling mass 5 of the weapon 5a and its counterweights 7 is best seen on the picture 2 .
  • the counterweights 7 formed by the armor plates and the various equipment have the function, thanks to the position of their center of gravity T, of counterbalancing the weight of the recoiling mass 5 which is exerted at its center of gravity G, by placing the center of gravity I of the oscillating mass 10 of the weapon assembly 1 at the level of the pins 2. In this way the pointing efforts in elevation of the weapon 5 are minimal.
  • the position of the center of gravity G of the recoiling mass is located in front of the journals 2 and creates an imbalance leading to a pivoting of the oscillating mass 10 around the journals 2.
  • the center of gravity of the part of the oscillating weight 10 which does not incorporate the recoiling weight 5 has a fixed location and it depends in particular on the importance of the unbalance constituted by the counterweights 7.
  • the skilled person places the recoiling weight 5 of the weapon 5a at its maximum recoil R and he also orients the oscillating weight 10 at its site ⁇ maximum in such a way that the breech 8 is above the mounting plane 101 of the weapon assembly 1.
  • Such a forward position with respect to the trunnions 2 implies that during firing at maximum power, the maximum recoil of the recoiling mass 5 places the end of travel of the breech 8 also notably further forward and close to the trunnions 2 compared to a weapon according to the state of the art which has the center of gravity of its recoiling mass 5 merged with the journals 2 when it is at rest.
  • This positioning of the center of gravity of the oscillating mass 10 at the level of the journals 2 is of course effective when the recoiling mass 5 is at rest.
  • the fact of moving the recoiling mass 5 forward AV releases space behind the cylinder head 8 which is favorable for example to the passage of a crew member 102 during maintenance operations or for the evacuation of the vehicle as visible on the figure 5 .
  • the counterweight 7 can incorporate at least one functional means such as a secondary weapon 7d.
  • This armament may include its own means of aiming in elevation to allow firing with a different orientation than that of the recoiling mass 5.
  • the functional means is constituted by a sight 7b it may also be associated with means allowing the orientation of the sight independently of that of the recoiling mass 5.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Golf Clubs (AREA)

Description

Le domaine technique de l'invention est celui des montages d'arme pour véhicules militaires et des tourelles comportant de tels montages.The technical field of the invention is that of weapon mounts for military vehicles and turrets comprising such mounts.

Les montages d'armes traditionnels sur les tourelles de char de combat comportent des tourillons servant de point de pivot en site à l'arme. Afin de limiter les efforts de pointage en site de l'arme, il est connu de positionner longitudinalement les tourillons au niveau du centre de gravité de la masse oscillante de l'arme.Traditional weapon mounts on main battle tank turrets feature trunnions serving as the pivot point in elevation for the weapon. In order to limit the elevation efforts of the weapon, it is known to position the pins longitudinally at the level of the center of gravity of the oscillating mass of the weapon.

Un tel montage sur une tourelle oblige lors du tir à avoir un dégagement dans la partie centrale de la tourelle située sous le plan de rotation en gisement de la tourelle afin que le pointage et le recul de l'arme puisse se faire jusque sous ce plan sans interférences. Ce dégagement est classiquement formé par un puits de tourelle pénétrant dans le châssis du véhicule tel que visible dans le brevet US4838144 .Such a mounting on a turret requires during firing to have a clearance in the central part of the turret located under the plane of rotation in bearing of the turret so that the pointing and the recoil of the weapon can be done until under this plane without interference. This clearance is conventionally formed by a turret well penetrating the chassis of the vehicle as visible in the patent US4838144 .

Ce type de puits de tourelle est encombrant et constitue une zone de vulnérabilité pour le véhicule qui est obligé de comporter une ouverture conséquente au niveau du châssis pour pouvoir recevoir le panier de tourelle.This type of turret well is cumbersome and constitutes a zone of vulnerability for the vehicle which is obliged to include a substantial opening at the level of the chassis in order to be able to receive the turret basket.

On connaît également par le brevet FR390931 un système d'arme de type artillerie de campagne dans lequel la masse oscillante incorpore un berceau qui assure le guidage de la masse reculante et qui porte à son extrémité arrière un contre poids permettant d'équilibrer la masse du canon lors du pointage le plus élevé. Ce dispositif n'est pas adapté à un montage d'arme en tourelle.We also know from the patent FR390931 a weapon system of the field artillery type in which the oscillating weight incorporates a cradle which ensures the guidance of the recoiling weight and which carries at its rear end a counterweight making it possible to balance the weight of the gun during the highest pointing . This device is not suitable for mounting a weapon in a turret.

L'invention se propose de résoudre ce problème d'encombrement et de vulnérabilité.The invention proposes to solve this problem of bulk and vulnerability.

Avantageusement l'invention résout également un problème d'accessibilité en superstructure au travers de la tourelle qui selon l'état de la technique est rendu difficile par la présence de la culasse de l'arme.Advantageously, the invention also solves a problem of accessibility to the superstructure through the turret which, according to the state of the art, is made difficult by the presence of the breech of the weapon.

L'invention a ainsi pour objet un montage d'arme comprenant une masse oscillante qui pivote en site par rapport à un affût, pour permettre le pointage, et comporte ainsi des tourillons destinés à s'interfacer avec une tourelle de char, la masse oscillante incorporant également une masse reculante qui se translate par rapport aux tourillons lors du tir, masse reculante comportant en particulier une arme, montage d'arme dans lequel les tourillons sont situés en arrière du centre de gravité de la masse reculante et en ce qu'un contrepoids est destiné à contrebalancer longitudinalement le poids de la masse reculante au repos de manière à placer le centre de gravité de la masse oscillante au niveau des tourillons, montage d'arme caractérisé en ce qu'au moins un tourillon est solidaire d'une première extrémité d'un bras qui est donc solidaire de la masse oscillante, bras portant le contrepoids à sa seconde extrémité, le contrepoids comprenant au moins une plaque de blindage balistique et/ou au moins un moyen fonctionnel constitué par un viseur et/ou par un armement secondaire.The subject of the invention is thus a weapon assembly comprising an oscillating mass which pivots in elevation with respect to a mounting, to allow aiming, and thus comprises pins intended to interface with a tank turret, the oscillating mass also incorporating a recoiling mass which translates relative to the trunnions when fired, the recoiling mass comprising in particular a weapon, weapon mounting in which the trunnions are located behind the center of gravity of the recoiling mass and in that a counterweight is intended to longitudinally counterbalance the weight of the recoiling mass at rest so as to place the center of gravity of the oscillating mass at the level of the trunnions, weapon assembly characterized in that at least one trunnion is integral with a first end of an arm which is therefore integral with the oscillating weight, arm carrying the counterweight at its second end, the counterweight comprising at least one ballistic armor plate and/or at least one functional means constituted by a sight and/or by secondary armament.

Avantageusement, le montage comporte deux bras situés chacun de part et d'autre de la masse oscillante, chaque bras portant un contrepoids.Advantageously, the assembly comprises two arms each located on either side of the oscillating weight, each arm carrying a counterweight.

Selon un mode particulier de réalisation, l'armement secondaire pourra comporter un lance grenade.According to a particular embodiment, the secondary armament may comprise a grenade launcher.

Selon un autre mode de réalisation, l'armement secondaire pourra comporter une mitrailleuse de moyen calibre.According to another embodiment, the secondary armament may include a medium-caliber machine gun.

L'invention a également pour objet une tourelle pour véhicule militaire pivotante en gisement autour d'un roulement séparant la tourelle du véhicule et définissant un plan de pose, tourelle caractérisée en ce qu'elle comporte un montage d'arme selon l'une des caractéristiques précédentes, montage dans lequel la distance D entre les tourillons et le centre de gravité de la masse reculante pour une hauteur de plan de pose donnée est choisie de manière à ce que lorsque la masse oscillante est à son site maximum et la masse reculante à son recul maximum, la masse reculante se trouve au-dessus du plan de pose.The invention also relates to a turret for a military vehicle pivoting in bearing around a bearing separating the turret from the vehicle and defining a laying plane, turret characterized in that it comprises a weapon mounting according to one of the previous characteristics, an assembly in which the distance D between the journals and the center of gravity of the recoiling mass for a given mounting plane height is chosen so that when the oscillating mass is at its maximum site and the recoiling mass at its maximum recoil, the recoiling mass is above the landing plane.

L'invention sera mieux comprise à la lecture de la description suivante, description faite à la lumière des dessins annexés, dessins dans lesquels:

  • [Fig.1] : vue de trois quarts avant d'une tourelle selon l'invention ;
  • [Fig.2] : vue de trois quarts avant d'un montage d'arme selon l'invention ;
  • [Fig.3] : vue schématique latérale d'une tourelle et d'un montage d'arme selon l'invention et selon une première configuration de pointage ;
  • [Fig.4] : vue schématique latérale d'une tourelle et d'un montage d'arme selon l'invention et selon une seconde configuration de pointage ;
  • [Fig.5] : vue de trois quarts avant d'une tourelle selon l'invention avec un personnel à bord.
The invention will be better understood on reading the following description, description given in the light of the appended drawings, drawings in which:
  • [ Fig.1 ]: front three-quarter view of a turret according to the invention;
  • [ Fig.2 ]: front three-quarter view of a weapon assembly according to the invention;
  • [ Fig.3 ]: schematic side view of a turret and a weapon mounting according to the invention and according to a first aiming configuration;
  • [ Fig.4 ]: schematic side view of a turret and a weapon mounting according to the invention and according to a second pointing configuration;
  • [ Fig.5 ]: front three-quarter view of a turret according to the invention with personnel on board.

Selon la figure 1, une tourelle 100 de char comporte un montage 1 d'arme. Le montage d'arme 1 comporte des tourillons 2 (qui seront mieux vus à la figure 2), solidaires de la tourelle 100 au niveau d'un affût 3 solidaire de la carapace 4 de la tourelle 100.According to figure 1 , a tank turret 100 includes a weapon mounting 1. Weapon mount 1 has 2 trunnions (which will be best seen at the picture 2 ), integral with the turret 100 at the level of a mounting 3 integral with the shell 4 of the turret 100.

Le montage d'arme 1 comporte une arme 5a de gros calibre (calibre supérieur à 40 mm) solidaire du montage 1 au niveau des tourillons qui constituent des axes 2 de pivotement en site pour la masse oscillante 10 portant l'arme 5a.The weapon assembly 1 comprises a large caliber weapon 5a (caliber greater than 40 mm) integral with the assembly 1 at the level of the pins which constitute axes 2 of pivoting in elevation for the oscillating weight 10 carrying the weapon 5a.

D'une façon classique et bien connue de l'Homme du Métier on désigne par masse oscillante 10 tous les éléments du montage d'arme 1 qui pivotent en site autour des tourillons 2.In a conventional manner well known to those skilled in the art, oscillating weight 10 designates all the elements of the weapon assembly 1 which pivot in elevation around the journals 2.

On désigne par masse reculante 5 tous les éléments du montage d'arme 1 qui reculent lors du tir.The term recoiling mass 5 designates all the elements of the weapon assembly 1 which recoil when shooting.

Plus précisément une masse oscillante 10 comprend en particulier la masse reculante 5 et le berceau qui reçoit et guide cette dernière lors du recul.More precisely, an oscillating mass 10 comprises in particular the recoiling mass 5 and the cradle which receives and guides the latter during recoil.

Une masse reculante 5 comprend en particulier l'arme 5a elle-même avec son tube et sa culasse 8 et la partie des freins de recul (non représentés) qui accompagne le recul (la partie fixe des freins reste liée au berceau).A recoiling mass 5 comprises in particular the weapon 5a itself with its tube and its breech 8 and the part of the recoil brakes (not shown) which accompanies the recoil (the fixed part of the brakes remains linked to the cradle).

Chaque tourillon 2 est solidaire d'une première extrémité d'un bras 6 situé de part et d'autre de la masse oscillante 10. La seconde extrémité de chaque bras 6 comporte un contrepoids 7.Each pin 2 is secured to a first end of an arm 6 located on either side of the oscillating weight 10. The second end of each arm 6 includes a counterweight 7.

Chaque contrepoids 7 comporte ici une plaque de blindage 7a sensiblement perpendiculaire à l'axe longitudinal de la masse reculante 5 de l'arme 5a afin de protéger balistiquement les parties de la tourelle 100 situées derrière ces plaques 7a. Les contrepoids pourront avantageusement comprendre des moyens fonctionnels de la tourelle, c'est-à-dire des moyens exerçant une fonction opérationnelle autre que celle de contrepoids, par exemple des équipements d'acquisition de cible (viseurs, désignateurs) ou des équipements de défense (armements secondaire, tourelleaux, systèmes de défense rapprochée...).Each counterweight 7 here comprises an armor plate 7a substantially perpendicular to the longitudinal axis of the recoiling mass 5 of the weapon 5a in order to ballistically protect the parts of the turret 100 situated behind these plates 7a. The counterweights may advantageously comprise functional means of the turret, that is to say means exercising an operational function other than that of counterweight, for example target acquisition equipment (sights, designators) or defense equipment (secondary armaments, turrets, close defense systems...).

Un premier contrepoids 7 situé à droite de la masse reculante 5 comporte par exemple un viseur 7b alors qu'un second contrepoids 7 comporte ici un armement secondaire 7e qui comporte un lance-grenade 7c ainsi qu'une mitrailleuse de moyen calibre 7d. Le montage d'arme 1 seul avec la masse reculante 5 de l'arme 5a et ses contrepoids 7 est mieux vu sur la figure 2.A first counterweight 7 located to the right of the recoiling mass 5 comprises for example a sight 7b whereas a second counterweight 7 here comprises a secondary armament 7e which comprises a grenade launcher 7c as well as a medium caliber machine gun 7d. The weapon assembly 1 alone with the recoiling mass 5 of the weapon 5a and its counterweights 7 is best seen on the picture 2 .

Comme visible à la figure 3 les contrepoids 7 formés par les plaques de blindages et les divers équipements ont pour fonction, grâce à la position de leur centre de gravité T, de contrebalancer le poids de la masse reculante 5 qui s'exerce au niveau de son centre de gravité G, en plaçant le centre de gravité I de la masse oscillante 10 du montage d'arme 1 au niveau des tourillons 2. De cette manière les efforts de pointage en site de l'arme 5 sont minimes.As seen at picture 3 the counterweights 7 formed by the armor plates and the various equipment have the function, thanks to the position of their center of gravity T, of counterbalancing the weight of the recoiling mass 5 which is exerted at its center of gravity G, by placing the center of gravity I of the oscillating mass 10 of the weapon assembly 1 at the level of the pins 2. In this way the pointing efforts in elevation of the weapon 5 are minimal.

Pour dimensionner les contrepoids 7 et leur distance relativement aux tourillons, l'Homme du Métier a besoin de connaître la distance D du centre de gravité G de la masse reculante 5 relativement aux tourillons 2.To size the counterweights 7 and their distance relative to the journals, the skilled person needs to know the distance D from the center of gravity G of the recoil mass 5 relative to the journals 2.

Cette évaluation se fait classiquement aujourd'hui à l'aide des moyens de conception assistée par ordinateur.This evaluation is conventionally done today using computer-aided design means.

Il est bien entendu que conformément à l'invention la position du centre de gravité G de la masse reculante se trouve en avant des tourillons 2 et crée un déséquilibre conduisant à un pivotement de la masse oscillante 10 autour des tourillons 2. Le centre de gravité de la partie de la masse oscillante 10 qui n'incorpore pas la masse reculante 5 a une localisation fixe et elle dépend en particulier de l'importance du balourd constitué par les contrepoids 7.It is understood that in accordance with the invention the position of the center of gravity G of the recoiling mass is located in front of the journals 2 and creates an imbalance leading to a pivoting of the oscillating mass 10 around the journals 2. The center of gravity of the part of the oscillating weight 10 which does not incorporate the recoiling weight 5 has a fixed location and it depends in particular on the importance of the unbalance constituted by the counterweights 7.

Il est aisé par conception assistée par ordinateur de déterminer l'ampleur des contrepoids à mettre en place (masse du contrepoids 7 et longueur du bras 6) pour compenser une avance donnée G du centre de gravité de la masse reculante 5 par rapport à l'axe des tourillons 2.It is easy by computer-aided design to determine the magnitude of the counterweights to be put in place (mass of the counterweight 7 and length of the arm 6) to compensate for a given advance G of the center of gravity of the recoiling mass 5 with respect to the trunnion axis 2.

En effet, conformément à l'invention, afin d'éviter une intrusion de la masse reculante 5 en dessous du plan de pose 101, on va tout d'abord avancer le centre de gravité G de la masse reculante 5 en procédant de la façon suivante :Indeed, in accordance with the invention, in order to avoid an intrusion of the recoiling mass 5 below the laying plane 101, we will first of all advance the center of gravity G of the recoiling mass 5 by proceeding as next :

Pour cela comme à la figure 4, pour une hauteur H donnée des tourillons 2 relativement au plan de pose 101, l'Homme du Métier, place la masse reculante 5 de l'arme 5a à son recul R maximum et il oriente par ailleurs la masse oscillante 10 à son site α maximal d'une façon telle que la culasse 8 se trouve au-dessus du plan de pose 101 du montage d'arme 1.For this as the figure 4 , for a given height H of the trunnions 2 relative to the laying plane 101, the skilled person places the recoiling weight 5 of the weapon 5a at its maximum recoil R and he also orients the oscillating weight 10 at its site α maximum in such a way that the breech 8 is above the mounting plane 101 of the weapon assembly 1.

En laissant revenir l'arme en batterie, l'Homme du Métier obtient donc quelle doit être la position du centre de gravité G de la masse reculante 5 au repos par rapport aux tourillons 2.By letting the weapon return to battery, the skilled person therefore obtains what must be the position of the center of gravity G of the recoiling mass 5 at rest with respect to the journals 2.

Une telle position avancée par rapport aux tourillons 2 implique que lors d'un tir à puissance maximale, le recul maximal de la masse reculante 5 place la fin de course de la culasse 8 également notablement plus vers l'avant et à proximité des tourillons 2 comparativement à une arme selon l'état de la technique qui a le centre de gravité de sa masse reculante 5 confondu avec les tourillons 2 lorsqu'elle est au repos.Such a forward position with respect to the trunnions 2 implies that during firing at maximum power, the maximum recoil of the recoiling mass 5 places the end of travel of the breech 8 also notably further forward and close to the trunnions 2 compared to a weapon according to the state of the art which has the center of gravity of its recoiling mass 5 merged with the journals 2 when it is at rest.

Grâce à ce déport du centre de gravité G de la masse reculante 5 de l'arme vers l'avant, on peut se dispenser d'équiper la tourelle d'un puits de tourelle et le châssis du véhicule n'aura pas à comporter d'ouverture vulnérante.Thanks to this offset of the center of gravity G of the recoiling mass 5 of the weapon forward, it is possible to dispense with equipping the turret with a turret well and the chassis of the vehicle will not have to include offensive opening.

En fonction de la position du centre de gravité G de la masse reculante 5 qu'il aura choisi relativement aux tourillons 2, l'Homme du Métier n'aura plus qu'à positionner le centre de gravité des contrepoids et choisir leur masse pour contrebalancer le balourd créé par la masse reculante 5 et positionner ainsi le centre de gravité de la masse oscillante 10 au niveau des tourillons 2. Le mode opératoire a été décrit précédemment et fera intervenir les outils de conception assistée par ordinateur.Depending on the position of the center of gravity G of the recoiling mass 5 that he has chosen relative to the journals 2, the person skilled in the art will only have to position the center of gravity of the counterweights and choose their mass to counterbalance the unbalance created by the recoiling weight 5 and thus positioning the center of gravity of the oscillating weight 10 at the level of the journals 2. The operating mode has been described above and will involve computer-aided design tools.

Ce positionnement du centre de gravité de la masse oscillante 10 au niveau des tourillons 2 est bien entendu effectif lorsque la masse reculante 5 est au repos.This positioning of the center of gravity of the oscillating mass 10 at the level of the journals 2 is of course effective when the recoiling mass 5 is at rest.

Avantageusement, le fait de déplacer la masse reculante 5 vers l'avant AV dégage de l'espace en arrière de la culasse 8 ce qui est favorable par exemple au passage d'un membre d'équipage 102 lors d'interventions de maintenance ou pour l'évacuation du véhicule comme visible à la figure 5.Advantageously, the fact of moving the recoiling mass 5 forward AV releases space behind the cylinder head 8 which is favorable for example to the passage of a crew member 102 during maintenance operations or for the evacuation of the vehicle as visible on the figure 5 .

On a vu que le contrepoids 7 peut incorporer au moins un moyen fonctionnel tel qu'un armement secondaire 7d. Cet armement pourra comporter ses propres moyens de pointage en site pour permettre un tir avec une orientation différente de celle de la masse reculante 5.We have seen that the counterweight 7 can incorporate at least one functional means such as a secondary weapon 7d. This armament may include its own means of aiming in elevation to allow firing with a different orientation than that of the recoiling mass 5.

Lorsque le moyen fonctionnel est constitué par un viseur 7b il pourra lui aussi être associé à des moyens permettant l'orientation du viseur indépendamment de celle de la masse reculante 5.When the functional means is constituted by a sight 7b it may also be associated with means allowing the orientation of the sight independently of that of the recoiling mass 5.

Claims (5)

  1. - A weapon assembly (1) comprising an oscillating mass (10) which pivots in elevation relative to a carriage (3), to allow the aiming, and thus comprises trunnions (2) intended to interface with a tank turret (100), the oscillating mass (10) also incorporating a recoiling mass (5) which translates relative to the trunnions (2) during firing, the recoiling mass (5) in particular comprising a weapon (5a), in which weapon assembly (1) the trunnions (2) are located behind the center of gravity (G) of the recoiling mass (5) and a counterweight (7) is intended to longitudinally counterbalance the weight of the recoiling mass (5) at rest so as to place the center of gravity of the oscillating mass (10) at the trunnions (2), at least one trunnion (2) being secured to a first end of an arm (6) which is therefore secured to the oscillating mass (10), the arm (6) carrying the counterweight (7) at its second end, the counterweight (7) comprising at least one ballistic armor plate (7a) and/or at least one functional means consisting of a sight (7b) and/or of a secondary weapon (7e).
  2. - The weapon assembly (1) according to claim 1, characterised in that it comprises two arms (6) located on either side of the oscillating mass (10), each arm (6) carrying a counterweight (7).
  3. - The weapon assembly (1) according to one of claims 1 or 2, characterised in that the secondary weapon (7e) comprises a grenade launcher (7c).
  4. - The weapon assembly (1) according to one of claims 1 or 2, characterised in that the secondary weapon (7e) comprises a medium-caliber machine gun (7d).
  5. - A turret (100) for a military vehicle, able to pivot in relative bearing about a rolling bearing separating the turret (100) from the vehicle and defining a mounting plane (101), which turret (100) is characterised in that it comprises a weapon assembly (1) according to one of the preceding claims, in which assembly (1) the distance D between the trunnions (2) and the center of gravity (G) of the recoiling mass (5) for a given height (H) of the mounting plane (101) is chosen such that when the oscillating mass (10) is at its maximum elevation and the recoiling mass (5) is at its maximum recoil, the recoiling mass (5) is located above the mounting plane (101).
EP19813651.7A 2018-11-08 2019-11-06 Weapon assembly and turret comprising such an assembly Active EP3877718B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1801168A FR3088419B1 (en) 2018-11-08 2018-11-08 WEAPON MOUNT AND TURRET INCLUDING SUCH MOUNT
PCT/IB2019/059539 WO2020095229A1 (en) 2018-11-08 2019-11-06 Weapon assembly and turret comprising such an assembly

Publications (2)

Publication Number Publication Date
EP3877718A1 EP3877718A1 (en) 2021-09-15
EP3877718B1 true EP3877718B1 (en) 2022-11-02

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EP19813651.7A Active EP3877718B1 (en) 2018-11-08 2019-11-06 Weapon assembly and turret comprising such an assembly

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EP (1) EP3877718B1 (en)
KR (1) KR20210099578A (en)
AU (1) AU2019375544A1 (en)
ES (1) ES2934475T3 (en)
FI (1) FI3877718T3 (en)
FR (1) FR3088419B1 (en)
HU (1) HUE061205T2 (en)
IL (1) IL282709A (en)
PL (1) PL3877718T3 (en)
WO (1) WO2020095229A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203003C (en) *
DE3717857A1 (en) 1987-05-27 1988-12-15 Rheinmetall Gmbh AUTOMATIC LOADING DEVICE FOR A TUBE ARM
FR2824896B1 (en) * 2001-05-17 2003-08-15 Giat Ind Sa WEAPON POINTING SYSTEM

Also Published As

Publication number Publication date
KR20210099578A (en) 2021-08-12
EP3877718A1 (en) 2021-09-15
ES2934475T3 (en) 2023-02-22
PL3877718T3 (en) 2023-01-09
AU2019375544A1 (en) 2021-05-27
FR3088419A1 (en) 2020-05-15
FR3088419B1 (en) 2022-04-01
IL282709A (en) 2021-06-30
HUE061205T2 (en) 2023-05-28
FI3877718T3 (en) 2023-02-28
WO2020095229A1 (en) 2020-05-14

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