EP0661514B1 - Firearm with a mobile breech block - Google Patents

Firearm with a mobile breech block Download PDF

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Publication number
EP0661514B1
EP0661514B1 EP94402656A EP94402656A EP0661514B1 EP 0661514 B1 EP0661514 B1 EP 0661514B1 EP 94402656 A EP94402656 A EP 94402656A EP 94402656 A EP94402656 A EP 94402656A EP 0661514 B1 EP0661514 B1 EP 0661514B1
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EP
European Patent Office
Prior art keywords
weapon
designed
chamber
breech block
locking means
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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.)
Expired - Lifetime
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EP94402656A
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German (de)
French (fr)
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EP0661514A1 (en
Inventor
Jean-Pierre Brauge
Patrick Balbo
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Giat Industries SA
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Giat Industries SA
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Publication of EP0661514A1 publication Critical patent/EP0661514A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/02—Block action, i.e. the main breech opening movement being transverse to the barrel axis
    • F41A3/10—Block action, i.e. the main breech opening movement being transverse to the barrel axis with sliding breech-block, e.g. vertically

Definitions

  • the weapons concerned by the present invention are of preferably large caliber artillery weapons which include a sleeve cylinder head system and a wedge cylinder head which can slide in the sleeve.
  • the placement of ammunition in the gun chamber is done using a repressor which pushes the ammunition on the upper part of the base of this one.
  • the ammunition is brought by a loading tube which comes place near the gun sleeve.
  • the ammunition is therefore not brought until the entry of the ammunition chamber.
  • the object of the present invention is to resolve the aforementioned problems, by proposing a weapon which allows facilitate the placement of ammunition, while with great safety in use during loading.
  • the weapon targeted by the invention includes a wedge movable breech between a closed position, in which the breech block closes an ammunition chamber, and a open position, in which the chamber is open for receive ammunition from a loading tube, latch means being adapted to hold the wedge cylinder head in open position, characterized in that unlocking means are mounted on the tube loading and are suitable for placing the means forming latch in the unlocked position, when the load is moved away from the ammunition chamber.
  • the breech wedge is unlocked by the loading tube, only when this one and moved away in the ammunition chamber, after having introduces ammunition.
  • means forming a lock exert a locking force substantially opposed to a restoring force exerted on the breech wedge by elastic return means and adapted to move said breech wedge from position open to the closed position.
  • the loading tube is suitable to be positioned adjacent to the chamber ammunition.
  • the weapon 10 targeted by the present invention comprises a breech wedge 12 movable between a closed position, in which the breech wedge 12 closes off a chamber 17, and an open position, in which the chamber 17 is open to receive ammunition from a loading tube 13.
  • means forming latch 16 are adapted to hold said corner of cylinder head 12 in the open position and means for unlocking 14 adapted to place the means forming latch in the unlocked position, when the load 13 is moved opposite chamber 17, are mounted on the loading tube 13.
  • the corner breech 12 is opened by a cocking lever 40 one end of which is engaged inside a housing 41 provided in the cylinder head corner, preferably near its base.
  • the latch means 16 exert a locking force substantially opposite to a force return force exerted on the breech wedge 12 by elastic return means adapted to move the breech wedge 12 from open position to position closed.
  • means of elastic return 36 can be a working spring in compression.
  • the force lock is applied directly to the corner of cylinder head 12, preferably near the part bottom of the breech wedge.
  • the automatic loading tube 13 comes thus in contact with chamber 17 and a repressor central (not shown) performs the stationing of the ammunition in the room.
  • Maintaining the munition at the interior of chamber 17 is produced by means of a retractable stop not shown and which is good described in patent application No. 8702241.
  • the loading tube 13 is therefore positioned above the cylinder head 12 when loading weapon 10.
  • the means forming lock 16 and the means of unlocking 14 are adapted to retract one by relative to each other when the loading tube 13 is moved to room 17, that is, when pass over the breech wedge 12, and coming in taken with each other when the loading tube 13 is moved opposite chamber 17 so as to place the latch means 16 in the position unlocked.
  • the retractable member 24 comprises at its projecting end, a surface 24a forming a pan tilted outward from weapon 10 and a surface 24b substantially vertical directed towards the interior of weapon 10.
  • the retractable member 24 can slide in translation inside the body 16b of the means forming a lock 16, in a T-shaped groove 19 as illustrated in Figures 4 and 5.
  • the return means 29 projecting from the organ 24 is a spring which is placed between two housings 28 and 30 which are drilled respectively at the interior of the retractable member 24 and of the body 16b means forming a lock 16.
  • Stop in translation of the organ retractable which is moved by the return force exerted by the spring 29, is produced by means of a pin 25 mounted in a bore 26, through the retractable member, which moves inside a light 18, formed in the body 16b and parallel to the direction of movement in translation of the retractable member, and which abuts the upper end of this light 18.
  • the surface 14b of the means of lock 14 is substantially vertical and comes therefore engaged with the corresponding surface 24b of the retractable member 24 when the loading tube 13 comes out of the weapon 10 away from the chamber 17.
  • cam 30 When the cam is rotated, a portion of cam 30, further from its axis of rotation than the rest of the cam, that is to say constituted by the part in tip 30a of the ovoid cam 30, comes into contact with a wall of the housing 22 and thus exerts a force on all of the means forming a lock 16. These are then displaced in pivoting around the axis of rotation 21, against the action of the return spring 23, so as to release the locking hooks 16a from the lugs 12a of the breech wedge 12.

Description

La présente invention concerne une arme à coin de culasse mobile entre une position fermée, dans laquelle le coin de culasse obture une chambre à munition, et une position ouverte, dans laquelle la chambre est ouverte pour recevoir une munition.The present invention relates to a wedge weapon movable breech between a closed position, in which the breech block closes an ammunition chamber, and a open position, in which the chamber is open for receive ammunition.

Les armes concernées par la présente invention sont de préférence des armes d'artillerie de gros calibre qui comprennent un système de culasse à manchon et un coin de culasse qui peut coulisser dans le manchon.The weapons concerned by the present invention are of preferably large caliber artillery weapons which include a sleeve cylinder head system and a wedge cylinder head which can slide in the sleeve.

Dans les armes connues, la mise à poste de la munition dans la chambre de l'arme se fait à l'aide d'un refouloir qui pousse la munition sur la partie haute du culot de celle-ci.In known weapons, the placement of ammunition in the gun chamber is done using a repressor which pushes the ammunition on the upper part of the base of this one.

Le refouloir poussant la munition suivant une direction oblique par rapport à la chambre et son axe d'ouverture, l'utilisateur éprouve souvent des difficultés pour la mise en place de la munition et risque de coincer la munition.The repeller pushing the ammunition in a direction oblique to the chamber and its opening axis, the user often experiences difficulties in setting in place of the ammunition and risk of jamming the ammunition.

De plus, dans les armes utilisées actuellement, la munition est amenée par un tube de chargement qui vient se placer à proximité du manchon de l'arme.In addition, in the weapons currently used, the ammunition is brought by a loading tube which comes place near the gun sleeve.

La munition n'est donc pas apportée jusqu'à l'entrée de la chambre à munition.The ammunition is therefore not brought until the entry of the ammunition chamber.

On connaít également par le brevet FR-A-2 639 426 une arme équipée d'un dispositif de blocage pour interrompre le mouvement de fermeture de la chambre par le coin de culasse avec des moyens formant verrou. Ces derniers sont adaptés à maintenir le coin de culasse en position ouverte. Ce dispositif vise à exclure des dégâts causés à un dispositif de chargement se trouvant sur la trajectoire du coin lorsque celui-ci remonte en position de fermeture.Also known by patent FR-A-2 639 426 a weapon fitted with a blocking device to interrupt the closing movement of the chamber through the breech corner with latch means. These are adapted to keep the cylinder head in the open position. This device aims to exclude damage to a device load on the corner path when it rises to the closed position.

La présente invention a pour but de résoudre les problèmes précités, en proposant une arme qui permette de faciliter la mise en poste de la munition, tout en présentant une grande sécurité d'utilisation lors du chargement.The object of the present invention is to resolve the aforementioned problems, by proposing a weapon which allows facilitate the placement of ammunition, while with great safety in use during loading.

L'arme visée par l'invention comprend un coin de culasse mobile entre une position fermée, dans laquelle le coin de culasse obture une chambre à munition, et une position ouverte, dans laquelle la chambre est ouverte pour recevoir une munition provenant d'un tube de chargement, des moyens formant verrou étant adaptés à maintenir le coin de culasse en position ouverte, caractérisé en ce que des moyens de déverrouillage sont montés sur le tube de chargement et sont adaptés pour placer les moyens formant verrou en position déverrouillée, lorsque le tube de chargement est déplacé à l'opposé de la chambre à munition.The weapon targeted by the invention includes a wedge movable breech between a closed position, in which the breech block closes an ammunition chamber, and a open position, in which the chamber is open for receive ammunition from a loading tube, latch means being adapted to hold the wedge cylinder head in open position, characterized in that unlocking means are mounted on the tube loading and are suitable for placing the means forming latch in the unlocked position, when the load is moved away from the ammunition chamber.

Ainsi, grâce à l'invention, le coin de culasse est déverrouillé par le tube de chargement, seulement lorsque celui-ci et éloigné dans la chambre à munition, après avoir introduit la munition.Thus, thanks to the invention, the breech wedge is unlocked by the loading tube, only when this one and moved away in the ammunition chamber, after having introduces ammunition.

On peut ainsi utiliser un refouloir central, ce qui permet de pousser la munition dans l'axe de l'ouverture de la chambre à munition de l'arme.It is thus possible to use a central repressor, which allows to push the ammunition in the axis of the opening of the ammunition chamber of the weapon.

Selon une version préférée de l'invention, des moyens formant verrou exercent une force de verrouillage sensiblement opposée à une force de rappel exercée sur le coin de culasse par des moyens de rappel élastique et adaptée à déplacer ledit coin de culasse de la position ouverte à la position fermée.According to a preferred version of the invention, means forming a lock exert a locking force substantially opposed to a restoring force exerted on the breech wedge by elastic return means and adapted to move said breech wedge from position open to the closed position.

Ainsi, dès que les moyens formant verrou sont placés en position déverrouillée, le coin de culasse est ramené dans sa position fermée par des moyens de rappel élastique.Thus, as soon as the latch means are placed in unlocked position, the breech wedge is brought back into its closed position by elastic return means.

Selon une version préférée, le tube de chargement est adapté à être positionné de manière adjacente à la chambre à munition.According to a preferred version, the loading tube is suitable to be positioned adjacent to the chamber ammunition.

La mise à poste de la munition est donc facilitée, le tube de chargement avançant jusqu'au niveau de l'entrée de la chambre.The placement of the ammunition is therefore facilitated, the loading tube advancing up to the entrance level of bedroom.

D'autres particularités et avantages de l'invention apparaítront encore dans la description ci-après. Other features and advantages of the invention will appear further in the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs:

  • la figure 1 est une vue d'ensemble illustrant une arme selon l'invention;
  • la figure 2 est une vue en coupe partielle de la culasse en position verrouillée;
  • la figure 3 est une vue analogue à la figure 2 de la culasse en position déverrouillée;
  • la figure 4 est une vue de face d'un moyen de verrouillage;
  • la figure 5 est une vue suivant F, en coupe partielle A-A à la figure 4;
  • la figure 6 est une vue en coupe d'un organe escamotable et d'un moyen de déverrouillage conformes à l'invention;
  • la figure 7 est une vue en perspective de l'organe escamotable de la figure 6;
  • la figure 8 est une vue en coupe transversale de l'arme montrant un dispositif de déverrouillage manuel; et
  • la figure 9 est une vue schématique illustrant le fonctionnement du dispositif de déverrouillage manuel de la figure 8.
In the appended drawings, given by way of nonlimiting examples:
  • Figure 1 is an overview illustrating a weapon according to the invention;
  • Figure 2 is a partial sectional view of the cylinder head in the locked position;
  • Figure 3 is a view similar to Figure 2 of the cylinder head in the unlocked position;
  • Figure 4 is a front view of a locking means;
  • Figure 5 is a view along F, in partial section AA in Figure 4;
  • Figure 6 is a sectional view of a retractable member and an unlocking means according to the invention;
  • Figure 7 is a perspective view of the retractable member of Figure 6;
  • Figure 8 is a cross-sectional view of the weapon showing a manual unlocking device; and
  • FIG. 9 is a schematic view illustrating the operation of the manual unlocking device of FIG. 8.

En référence tout d'abord à la figure 1, l'arme 10 visée par la présente invention comprend un coin de culasse 12 mobile entre une position fermée, dans laquelle le coin de culasse 12 obture une chambre 17, et une position ouverte, dans laquelle la chambre 17 est ouverte pour recevoir une munition provenant d'un tube de chargement 13.Referring first to Figure 1, the weapon 10 targeted by the present invention comprises a breech wedge 12 movable between a closed position, in which the breech wedge 12 closes off a chamber 17, and an open position, in which the chamber 17 is open to receive ammunition from a loading tube 13.

Le coin de culasse 12 peut coulisser à l'intérieur d'un manchon 11 disposé sur le côté arrière de l'arme 10.The breech wedge 12 can slide at the inside of a sleeve 11 disposed on the rear side weapon 10.

La chambre 17 est située juste en avant du tube d'artillerie 15. Room 17 is located just in front of the artillery tube 15.

Conformément à l'invention, des moyens formant verrou 16 sont adaptés à maintenir ledit coin de culasse 12 en position ouverte et des moyens de déverrouillage 14 adaptés à placer les moyens formant verrou en position déverrouillée, lorsque le tube de chargement 13 est déplacé à l'opposé de la chambre 17, sont montés sur le tube de chargement 13.According to the invention, means forming latch 16 are adapted to hold said corner of cylinder head 12 in the open position and means for unlocking 14 adapted to place the means forming latch in the unlocked position, when the load 13 is moved opposite chamber 17, are mounted on the loading tube 13.

Comme illustré sur les figures 2 et 3, le coin de culasse 12 est ouvert grâce à un levier d'armement 40 dont une extrémité est engagée à l'intérieur d'un logement 41 ménagée dans le coin de culasse, de préférence à proximité de sa base.As illustrated in Figures 2 and 3, the corner breech 12 is opened by a cocking lever 40 one end of which is engaged inside a housing 41 provided in the cylinder head corner, preferably near its base.

Le mouvement transmis au levier d'armement 40 s'effectue de manière connue lors de la rentrée en batterie de l'arme après le tir par un système de came et de plaque porte came non représentés sur les figures.The movement transmitted to the cocking lever 40 is carried out in a known manner during the return to school in weapon battery after firing by a cam system and of the cam plate not shown on the figures.

Les moyens formant verrou 16 exercent une force de verrouillage sensiblement opposée à une force de rappel exercée sur le coin de culasse 12 par des moyens de rappel élastique et adaptée à déplacer le coin de culasse 12 de la position ouverte à la position fermée.The latch means 16 exert a locking force substantially opposite to a force return force exerted on the breech wedge 12 by elastic return means adapted to move the breech wedge 12 from open position to position closed.

Comme illustré à la figure 1, des moyens de rappel élastique 36 peuvent être un ressort travaillant en compression.As illustrated in FIG. 1, means of elastic return 36 can be a working spring in compression.

Dans l'exemple de réalisation décrit, la force de verrouillage est appliquée directement sur le coin de culasse 12, de préférence à proximité de la partie basse du coin de culasse.In the example of embodiment described, the force lock is applied directly to the corner of cylinder head 12, preferably near the part bottom of the breech wedge.

Comme bien illustré à la figure 2, lors du chargement, le coin de culasse 12 est en position ouverte et le tube de chargement 13 est introduit (dans le sens de la flèche F) dans l'arme 10, à l'intérieur du manchon 11, et est positionné de manière adjacente à la chambre 17 (voir position en pointillés à la figure 2).As illustrated in Figure 2, when loading, the breech wedge 12 is in position open and the loading tube 13 is inserted (in the direction of arrow F) in weapon 10, inside of the sleeve 11, and is positioned adjacent to chamber 17 (see dotted position in figure 2).

Le tube de chargement 13 automatique vient ainsi en contact avec la chambre 17 et un refouloir central (non représenté) effectue la mise à poste de la munition dans la chambre.The automatic loading tube 13 comes thus in contact with chamber 17 and a repressor central (not shown) performs the stationing of the ammunition in the room.

Le maintien à poste de la munition à l'intérieur de la chambre 17 est réalisé grâce à une butée escamotable non représentée et qui est bien décrite dans la demande de brevet n° 8702241.Maintaining the munition at the interior of chamber 17 is produced by means of a retractable stop not shown and which is good described in patent application No. 8702241.

Le tube de chargement 13 est donc positionné au-dessus du coin de culasse 12 lors du chargement de l'arme 10.The loading tube 13 is therefore positioned above the cylinder head 12 when loading weapon 10.

Les moyens formant verrou 16 et les moyens de déverrouillage 14 sont adaptés à s'escamoter l'un par rapport à l'autre lorsque le tube de chargement 13 est déplacé vers la chambre 17, c'est-à-dire lorsqu'il passe au-dessus du coin de culasse 12, et à venir en prise l'un avec l'autre lorsque le tube de chargement 13 est déplacé à l'opposé de la chambre 17 de manière à placer les moyens formant verrou 16 dans la position déverrouillée.The means forming lock 16 and the means of unlocking 14 are adapted to retract one by relative to each other when the loading tube 13 is moved to room 17, that is, when pass over the breech wedge 12, and coming in taken with each other when the loading tube 13 is moved opposite chamber 17 so as to place the latch means 16 in the position unlocked.

Comme illustré à la figure 6, les moyens formant verrou 16 comprennent un organe escamotable 24 monté en coulissement entre une position en saillie et une position escamotée, un moyen de rappel élastique 29 étant adapté à rappeler en saillie l'organe escamotable 24.As illustrated in Figure 6, the means forming a lock 16 comprise a retractable member 24 slidably mounted between a projecting position and a retracted position, an elastic return means 29 being adapted to recall the projecting member retractable 24.

L'organe escamotable 24 comporte à son extrémité en saillie, une surface 24a formant un pan incliné vers l'extérieur de l'arme 10 et une surface 24b sensiblement verticale dirigée vers l'intérieur de l'arme 10.The retractable member 24 comprises at its projecting end, a surface 24a forming a pan tilted outward from weapon 10 and a surface 24b substantially vertical directed towards the interior of weapon 10.

De manière complémentaire, les moyens de déverrouillage 14 sont constitués d'un élément allongé en forme de doigt dont une extrémité comprend des surfaces 14a et 14b en concordance avec les surfaces 24a et 24b de l'organe escamotable 24.In addition, the means of release 14 consist of an elongated member finger-shaped, one end of which includes surfaces 14a and 14b in agreement with the surfaces 24a and 24b of the retractable member 24.

Ainsi, la surface 14a est inclinée de la même manière que la surface 24a de l'organe 24, de sorte que, lorsque ces deux surfaces 14a et 24a sont en contact, lorsque le tube de chargement 13 se déplace vers la chambre 17, la surface 14a escamote l'organe 24.Thus, the surface 14a is inclined by the same so that the surface 24a of the member 24, so that when these two surfaces 14a and 24a are in contact, when the loading tube 13 moves towards the chamber 17, the surface 14a retracts the member 24.

L'organe escamotable 24 peut coulisser en translation à l'intérieur du corps 16b des moyens formant verrou 16, dans une rainure 19 en forme de Té comme illustré sur les figures 4 et 5.The retractable member 24 can slide in translation inside the body 16b of the means forming a lock 16, in a T-shaped groove 19 as illustrated in Figures 4 and 5.

Le moyen de rappel 29 en saillie de l'organe 24 est un ressort qui se trouve placé entre deux logements 28 et 30 qui sont percés respectivement à l'intérieur de l'organe escamotable 24 et du corps 16b des moyens formant verrou 16.The return means 29 projecting from the organ 24 is a spring which is placed between two housings 28 and 30 which are drilled respectively at the interior of the retractable member 24 and of the body 16b means forming a lock 16.

L'arrêt en translation de l'organe escamotable, qui est déplacé grâce à la force de rappel exercée par le ressort 29, est réalisé grâce à une goupille 25 montée dans un alésage 26, traversant l'organe escamotable, qui se déplace à l'intérieur d'une lumière 18, ménagée dans le corps 16b et parallèle à la direction de déplacement en translation de l'organe escamotable, et qui vient en butée à l'extrémité supérieure de cette lumière 18.Stop in translation of the organ retractable, which is moved by the return force exerted by the spring 29, is produced by means of a pin 25 mounted in a bore 26, through the retractable member, which moves inside a light 18, formed in the body 16b and parallel to the direction of movement in translation of the retractable member, and which abuts the upper end of this light 18.

Inversement, la surface 14b des moyens de verrouillage 14 est sensiblement verticale et vient donc en prise avec la surface correspondante 24b de l'organe escamotable 24 lorsque le tube de chargement 13 ressort de l'arme 10 en s'éloignant de la chambre 17.Conversely, the surface 14b of the means of lock 14 is substantially vertical and comes therefore engaged with the corresponding surface 24b of the retractable member 24 when the loading tube 13 comes out of the weapon 10 away from the chamber 17.

Les moyens formant verrou 16 sont montés en pivotement sur un axe de rotation 21 entre une position verrouillée et la position déverrouillée. Cette réalisation est illustrée sur les figures 4 et 5.The latch means 16 are mounted in pivoting on a rotation axis 21 between a position locked and unlocked position. This embodiment is illustrated in FIGS. 4 and 5.

Lorsque la surface 14b des moyens de déverrouillage 14 vient en prise avec l'organe escamotable 24, l'ensemble des moyens formant verrou 16 est donc entraíné en rotation autour de l'axe 21.When the surface 14b of the means of unlocking 14 engages with the member retractable 24, all of the means forming a lock 16 is therefore rotated around the axis 21.

Les moyens formant verrou 16 comprennent un crochet de verrouillage 16a adapté à venir en prise avec un moyen formant ergot 12a solidaire du coin de culasse 12.The latch means 16 comprise a locking hook 16a adapted to engage with a lug-forming means 12a integral with the corner of cylinder head 12.

De préférence, le corps 16b comprend deux crochets de verrouillage 16a qui permettent de verrouiller le coin de culasse 12 en exerçant une force opposée à la force de rappel exercée par le ressort 36 en deux points du coin de culasse 12 situés à deux extrémités latérales de celui-ci.Preferably, the body 16b comprises two locking hooks 16a which allow lock the breech wedge 12 by exerting a force opposite to the restoring force exerted by the spring 36 at two points on the cylinder head 12 located two lateral ends of it.

Lorsque les moyens de déverrouillage 14 accrochent l'organe escamotable 24, les moyens formant verrou 16 pivotent autour de l'axe de rotation 21 et libèrent ainsi les ergots 12a du coin de culasse 12, des crochets de verrouillage 16a.When the unlocking means 14 hook the retractable member 24, the means forming latch 16 pivot around the axis of rotation 21 and thus release the pins 12a from the breech wedge 12, locking hooks 16a.

Le coin de culasse 12 peut ainsi venir, en position fermée, obturer la chambre 17, l'énergie nécessaire à ce mouvement étant fournie par le ressort 36.The breech wedge 12 can thus come in closed position, close chamber 17, energy necessary for this movement being provided by the spring 36.

En outre, deux ressorts de torsion 23 sont adaptés à rappeler les moyens formant verrou 16 dans leur position verrouillée.In addition, two torsion springs 23 are adapted to recall the means forming lock 16 in their locked position.

Ces ressorts de torsion sont situés de part et d'autre du corps 16b des moyens formant verrou 16. Il sont alignés avec l'axe de rotation 21 et sont disposés chacun entre le corps 16b et le manchon 11 de l'arme 10.These torsion springs are located on either side other of the body 16b of the means forming a lock 16. It are aligned with the axis of rotation 21 and are arranged each between the body 16b and the sleeve 11 of the weapon 10.

Des logements 20a sont prévus respectivement dans le manchon 11 et le corps 16b des moyens de verrouillage pour recevoir les extrémités 20 des ressorts de torsion.Housings 20a are provided respectively in the sleeve 11 and the body 16b means for lock to receive the ends 20 of torsion springs.

Ainsi, lorsque le coin de culasse 12 est placé en position ouverte grâce au levier d'armement 40, le ressort de torsion 23 place automatiquement les crochets de verrouillage 16a en prise avec les ergots 12a du coin de culasse, en faisant basculer les moyens formant verrou 16 autour de l'axe de rotation 21.So when the breech wedge 12 is placed in the open position thanks to the cocking lever 40, the torsion spring 23 automatically places the locking hooks 16a engaged with the lugs 12a of the breech corner, by tilting the means forming a lock 16 around the axis of rotation 21.

De préférence, le levier d'armement 40 est également monté, à son extrémité opposée à l'extrémité solidaire du coin de culasse 12, sur l'axe de rotation 21.Preferably, the cocking lever 40 is also mounted, at its end opposite the end integral with the cylinder head wedge 12, on the axis of rotation 21.

De préférence, l'arme 10 comprend en outre un dispositif de déverrouillage manuel comportant un levier 32 monté en rotation sur l'arme 10 et ayant une extrémité 32a extérieure à ladite arme 10, et une seconde extrémité 32b solidaire d'une came 30, cette came 30 étant adaptée à placer les moyens formant verrou 16 dans une position déverrouillée.Preferably, the weapon 10 further comprises a manual unlocking device comprising a lever 32 rotatably mounted on the weapon 10 and having a end 32a external to said weapon 10, and a second end 32b secured to a cam 30, this cam 30 being adapted to place the means forming latch 16 in an unlocked position.

Le déverrouillage se commande par un levier d'ouverture (non représenté), situé à l'extérieur du manchon 11 de l'arme 10 et solidaire de l'extrémité 32a de l'arbre 32, de manière à être à portée de main du tireur.Unlocking is controlled by a lever opening (not shown), located outside the sleeve 11 of the weapon 10 and integral with the end 32a of the shaft 32, so as to be within easy reach of the shooter.

La came 30 est liée à l'arbre 32 par une goupille élastique 31, de sorte que le mouvement de rotation du levier est transmis à la came 31.The cam 30 is linked to the shaft 32 by a spring pin 31, so that the movement of rotation of the lever is transmitted to cam 31.

Cette came 30 est sensiblement ovoïde et est logée à l'intérieur d'un logement 22 ménagé dans le corps 12b des moyens formant verrou 16.This cam 30 is substantially ovoid and is housed inside a housing 22 provided in the body 12b of the means forming a lock 16.

La disposition de cette came 30 dans le logement 22 est telle que, lorsque les moyens formant verrou 16 sont en position verrouillée, tel que représenté à la figure 9 en traits continus, la came est adjacente ou proche d'une paroi du logement 22 en un point proche de son axe de rotation.The arrangement of this cam 30 in the housing 22 is such that when the means forming lock 16 are in the locked position, such as shown in Figure 9 in solid lines, the cam is adjacent or close to a wall of the housing 22 in one point close to its axis of rotation.

Lorsque la came est entraínée en rotation, une portion de la came 30, plus éloignée de son axe de rotation que le reste de la came, c'est-à-dire constituée par la partie en pointe 30a de la came ovoïde 30, vient en contact avec une paroi du logement 22 et exerce ainsi une force sur l'ensemble des moyens formant verrou 16. Ceux-ci sont alors déplacés en pivotement autour de l'axe de rotation 21, contre l'action du ressort de rappel 23, de manière à libérer les crochets de verrouillage 16a des ergots 12a du coin de culasse 12.When the cam is rotated, a portion of cam 30, further from its axis of rotation than the rest of the cam, that is to say constituted by the part in tip 30a of the ovoid cam 30, comes into contact with a wall of the housing 22 and thus exerts a force on all of the means forming a lock 16. These are then displaced in pivoting around the axis of rotation 21, against the action of the return spring 23, so as to release the locking hooks 16a from the lugs 12a of the breech wedge 12.

Ce dernier est alors déverrouillé et remonte en position fermée pour obturer la chambre 17.The latter is then unlocked and goes back up closed position to close off chamber 17.

On peut envisager de verrouiller le coin de culasse sur sa partie haute au lieu de sa partie basse.We can consider locking the cylinder head corner on its upper part instead of its lower part.

Les moyens formant verrou pourraient être appliqués directement au ressort de fermeture du coin de culasse, les moyens de déverrouillage agissant alors sur ces moyens formant verrou de manière à libérer, par un dispositif mécanique, l'énergie continue dans le ressort de fermeture du coin.Lock means could be applied directly to the cylinder head closing spring, the unlocking means then acting on these means forming a lock so as to release, by a device mechanical, energy continues in the closing spring from the neighborhood.

Claims (10)

  1. A weapon with breech block (12) able to slide between a closed position, in which the breech block (12) obturates an ammunition chamber (17), and an open position, in which said chamber (17) is open in order to receive a piece of ammunition coming from a loading chute (13), means forming a lock (16) being designed to hold the breech block (12) in its open position, characterized in that the unlocking means (14) are mounted on the loading chute (13) and are designed to place said locking means (16) in an unlocked position when the loading chute (13) is moved to face said ammunition chamber (17).
  2. A weapon according to Claim 1, characterized in that the locking means (16) exert a locking force substantially opposed to a return force exerted on the breech block (12) by flexible return means (36) and designed to move said breech block (12) from its open to its closed position.
  3. A weapon according to Claim 2, characterized in that said locking force is applied directly to the breech block (12).
  4. A weapon according to one of Claims 1 to 3, characterized in that the loading chute (13) is designed to be positioned adjacently to the ammunition chamber (17).
  5. A weapon according to one of Claims 1 to 4, characterized in that the locking means (16) and the unlocking means (14) are designed to retract with respect to one another when the loading chute (13) is moved towards the chamber (17) and to mesh with one another when the loading chute (13) is moved to face the chamber (17) so as to place the locking means (16) is said unlocked position.
  6. A weapon according to Claim 5, characterized in that the locking means (16) comprise a retractable organ (24) mounted sliding between a protruding position and a retracted position, flexible return means (29) being designed to return said retractable organ (24) to its protruding position.
  7. A weapon according to one of Claims 1 to 6, characterized in that the locking means (16) are mounted on a spindle (21) between a locked position and said unlocked position.
  8. A weapon according to one of Claims 1 to 7, characterized in that said locking means (16) comprise a locking crotchet (16a) designed to mesh with snug-forming means (12a) integral with the breech block (12).
  9. A weapon according to Claim 7, characterized in that at least one torsion spring (23) is designed to return the locking means (16) to said locked position.
  10. A weapon according to one of Claims 1 to 9, characterized in that it comprises in addition a manual unlocking device incorporating a shaft (32) mounted rotating on said weapon (10) one end (32a) of which is outside said weapon (10) and a second end (32b) is integral with a cam (30), said cam (30) being designed to place the locking means (16) in an unlocked position.
EP94402656A 1993-12-07 1994-11-22 Firearm with a mobile breech block Expired - Lifetime EP0661514B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314633 1993-12-07
FR9314633A FR2713755B1 (en) 1993-12-07 1993-12-07 Movable breech wedge weapon.

Publications (2)

Publication Number Publication Date
EP0661514A1 EP0661514A1 (en) 1995-07-05
EP0661514B1 true EP0661514B1 (en) 1998-08-26

Family

ID=9453624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94402656A Expired - Lifetime EP0661514B1 (en) 1993-12-07 1994-11-22 Firearm with a mobile breech block

Country Status (5)

Country Link
US (1) US5481958A (en)
EP (1) EP0661514B1 (en)
DE (1) DE69412774T2 (en)
FR (1) FR2713755B1 (en)
IL (1) IL111766A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327115B (en) * 1997-07-09 2001-06-06 Rheinmetall Ind Ag Transverse action breech block for a weapon
US7296506B2 (en) * 2005-03-10 2007-11-20 Bae Systems Land & Armaments L.P. Make-break devices
DE102009037899A1 (en) * 2009-08-19 2011-02-24 Rheinmetall Waffe Munition Gmbh Wedge lock of a barrel weapon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR944047A (en) * 1945-09-13 1949-03-24 Semi-automatic rapid-fire servo-loading cannon
CH667719A5 (en) * 1985-10-23 1988-10-31 Oerlikon Buehrle Ag Weapon with wedge action breech block - uses pin sensing extraction groove on cartridge to release insertion arm and breech block
DE3839496A1 (en) * 1988-11-23 1990-05-31 Rheinmetall Gmbh LOCKING DEVICE FOR INTERRUPTING THE LOCKING KEY MOVEMENT

Also Published As

Publication number Publication date
FR2713755A1 (en) 1995-06-16
IL111766A (en) 1998-04-05
FR2713755B1 (en) 1996-02-09
IL111766A0 (en) 1995-01-24
EP0661514A1 (en) 1995-07-05
DE69412774D1 (en) 1998-10-01
US5481958A (en) 1996-01-09
DE69412774T2 (en) 1999-01-14

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