EP1067353A1 - Firing device for ordnance by percussion of a fuse - Google Patents

Firing device for ordnance by percussion of a fuse Download PDF

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Publication number
EP1067353A1
EP1067353A1 EP00401872A EP00401872A EP1067353A1 EP 1067353 A1 EP1067353 A1 EP 1067353A1 EP 00401872 A EP00401872 A EP 00401872A EP 00401872 A EP00401872 A EP 00401872A EP 1067353 A1 EP1067353 A1 EP 1067353A1
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EP
European Patent Office
Prior art keywords
lever
striker
firing device
pawl
support
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
EP00401872A
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German (de)
French (fr)
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EP1067353B1 (en
Inventor
Patrick Pochard
Jean-Claude Bourdin
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Giat Industries SA
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Giat Industries SA
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Publication date
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Publication of EP1067353A1 publication Critical patent/EP1067353A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/57—Firing mechanisms operating with primer cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/36—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in block-action guns
    • F41A19/37—Cocking mechanisms
    • F41A19/38—Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement

Definitions

  • the technical field of the present invention is that of firing devices for artillery by percussion of the nipples.
  • Artillery firing devices include in a known manner a striker subjected to the action of a spring.
  • This spring being compressed, it constrains the striker in a rear armed position throughout the use of the weapon, that is to say as long as the fire is not started.
  • the striker is released, the spring projects it onto the primer the choke to ensure ignition.
  • US-A-2,245,621 which describes a striker like this where this one is returned to the armed position when the cylinder head. It is not desirable to use such a system as it is likely to lead to updates untimely fire, which can be very dangerous for the servants of the weapon.
  • Patent DE147526 describes a firing device for an artillery comprising a striker subjected to the action of a spring.
  • a latch stopper allows roll back the striker by bandaging its spring, when of the rotation of an arming lever. This last fact pivot a second lever around an axis which has a pawl cooperating with the latch. At the end of rotation cocking lever, the pawl detaches from the latch that releases the striker.
  • the object of the present invention is to provide a new concept for maneuvering a non-entraining striker no constant tensioning of a spring coupled to it striker and reduced size.
  • a first notch presents a cylindrical profile, in which the pawl begins its rotation, followed by a second notch in which clears the pawl to allow rotation of the lever around its axis.
  • the second notch has a depth corresponding to the percussion stroke of the striker.
  • the heel is located beyond the second notch to cooperate with a ramp fitted on the lever to return it to the initial position.
  • the rod is returned to the initial position by a return spring and it is driven in translation at using a hydraulic cylinder.
  • the lever projection means consists of a arm of which one end is supported on the lever and the other rigidly attached to a torsion bar, the other end of the arm and the bar being fixed to the support.
  • the lever has one end fixed to the striker and the other fixed to an axis of rotation relative to the support, the pawl being rotatably mounted relative to this lever at a point between its two ends.
  • the torsion bar is initially put in prestressing.
  • the lever can be realized in the form of a plate with days to reduce its moment of inertia.
  • the pawl is coupled to the lever by through a spring.
  • the striker has a first groove perpendicular to the axis of the striker in which the end of the lever is engaged and a pawn emerging therein, to maintain the lever in this groove.
  • the striker is provided with means allowing its extraction comprising at least two notches on its face rear to allow its grip, and a second groove parallel to the striker axis communicating with the first groove, the lever traversing the second groove after erasing the pawn and rotating the striker.
  • a very first result of the device according to the invention resides in that the striker is always in rest position even when the breech of the weapon is closed.
  • Another advantage is the possibility of adjusting the prestressing of the torsion bar.
  • Another advantage is the compactness of the Firing.
  • FIG. 1 there is shown a partial section of the weapon at the pin striker in the longitudinal direction.
  • the support 1 corresponding to the rear part of the weapon (no shown) on which the different elements necessary for understanding the invention are represented.
  • the weapon is equipped with a striker 2 slidably mounted in an integral housing 3 of the support 1.
  • a set of pins (not shown) is arranged facing the tip of this striker and these nipples are initiated as and when percussion during translation of the striker.
  • the striker 2 is coupled to actuation means consisting mainly of a lever 4, a pawl 9, a projection means in the form of an arm 11 and a bar twist 18 and drive means appearing under the shape of a movable rod 12.
  • the lever 4 is articulated in a yoke 5 secured to the support 1.
  • Lever 4 has a number of 7 days intended to lighten it to decrease its moment of inertia with respect to its axis of rotation 6 and decrease thus the response time of the percussion.
  • Leverage 4 is provided with a face 8 on which a pawl 9, mounted rotatable relative to this lever around an axis 10, is maintained in constant support (in the direction of the arrow) via a return spring not represented.
  • Arm 11 is engaged in one of the days, day 7a for example, to drive lever 4 as it will explained below.
  • the rod 12 arranged substantially parallel to the lever 4 is slidably mounted in a clevis 13 fixed to support 1 and is coupled to a spring 14 whose role is to bring it back to its original position such that shown schematically in Figure 1.
  • the rod 12 is provided a first cylindrical notch 15, a second notch 16 and a heel 17.
  • the pawl 9 is susceptible to occupy the first and second notches like this will be explained later when a movement of traction is exerted on the rod 12.
  • FIG 2 there is shown in bottom view the support 1, striker 2, lever 4 and rod 12 coupled to its spring 14.
  • the arm 11 is linked mechanically at the end of a torsion bar 18 arranged in a housing 19 formed in the support 1.
  • the other end of the torsion bar 18 is fixed rigidly in the housing 19, for example using of a plate 20.
  • Percussion is performed as follows.
  • Figure 4 illustrates a final phase of operation in which the pawl 9 has engaged in the notch 16 as a result of a translation additional rod 12.
  • the pawl 9 being suddenly escaped into notch 16, the bar of twist 18 can then relax and project strongly the striker 2 under the action of the arm 11 towards the initiation of the suffocation to initiate it.
  • the rearming is done as follows.
  • the striker 2 is returned to the initial position, that is to say in the rest position shown on the Figure 1, under the action of the spring 14.
  • the spring 14 is compressed when the rod 12 is pulled by the hydraulic cylinder.
  • the spring 14 brings the rod 12 in the direction opposite of arrow F and heel 17 of rod runs along a ramp 21 arranged on the lever 4 as shown in Figure 4.
  • This lever 4 is pushed back and the pawl 9 is released from notch 16 by pivoting around its axis 10 passing through the position intermediate shown in Figure 3 and comes occupy the initial position shown in Figure 1 going back to notch 15.
  • the pawl 9 returns to bear on the face 8 of the lever 4.
  • a new cycle can then start again.
  • FIG 5 there is shown the arm 11 actuating the lever 4.
  • the arm 11 is housed in a housing 22 made in the support 1.
  • a end of the arm 11 is integral with the torsion bar 18 and the other end is engaged in day 7a of lever 4.
  • FIG 6 there is shown a section longitudinal of striker 2 which has a first groove 23 perpendicular to the axis of the striker, a second groove 24 parallel to the axis of the striker and a connection 25 of these two grooves.
  • the lever 4 is positioned in the first groove 23 and its travel is limited by a pin 26 opening into the first groove 23 (see Figure 7).
  • This pawn is placed in a housing 27 of the striker and is located pushed by a spring 28 blocked by a screwed plug 29 in the housing 27.
  • the housing 27 and the pin 26 are each provided with a shoulder allowing fix the final position of the pawn.
  • the striker 2 can be removed from its housing in case exchange or to neutralize it.
  • the striker 2 is provided on its rear face with two notches 30 (FIG. 6) in which there is positioned a tool that turns the striker a quarter of turn.
  • the rotation of the striker 2 causes the counter to move back 26 against the elastic thrust of the spring 28 and the lever 4 can then pass from the first groove 23 to the second groove 24.
  • the striker can then be extract from his home. To replace the striker, does the opposite.

Abstract

The percussion igniter for an artillery piece has a lever (4) connected to a firing pin (2) and pivoted to support (1). A catch (9) can be released by the lever. A projection arm (11) is fixed to the support to engage the lever. A drive (12) moves the catch to operate the lever and arm the firing pin. The arm has a linkage having notches co-operating with the catch and a heel (17) co-operating with the lever.

Description

Le domaine technique de la présente invention est celui des dispositifs de mise à feu pour artillerie par percussion des étoupilles.The technical field of the present invention is that of firing devices for artillery by percussion of the nipples.

Les dispositifs de mise à feu pour artillerie comportent de façon connue un percuteur soumis à l'action d'un ressort. Ce ressort étant comprimé, il contraint le percuteur dans une position arrière armée pendant toute l'utilisation de l'arme, c'est-à-dire tant que la mise à feu n'est pas déclenchée. Lorsque le percuteur est libéré, le ressort le projette sur l'amorce de l'étoupille pour assurer la mise à feu. On comprend qu'avec un tel dispositif, il est impératif de prévoir des moyens de libération du percuteur et des moyens pour ramener en position initiale ce percuteur et assurer son blocage. On peut se reporter au brevet US-A- 2 245 621 qui décrit un percuteur de ce genre où celui-ci est replacé en position armée lors de la fermeture de la culasse. Il n'est pas souhaitable d'utiliser un tel système, car il est susceptible de conduire à des mises à feu intempestives, ce qui peut être très dangereux pour les servants de l'arme.Artillery firing devices include in a known manner a striker subjected to the action of a spring. This spring being compressed, it constrains the striker in a rear armed position throughout the use of the weapon, that is to say as long as the fire is not started. When the striker is released, the spring projects it onto the primer the choke to ensure ignition. We understand that with such a device, it is imperative to plan means for releasing the striker and means for return this striker to the initial position and ensure its blocking. Reference may be made to US-A-2,245,621 which describes a striker like this where this one is returned to the armed position when the cylinder head. It is not desirable to use such a system as it is likely to lead to updates untimely fire, which can be very dangerous for the servants of the weapon.

Le brevet DE147526 décrit un dispositif de mise à feu pour une artillerie comportant un percuteur soumis à l'action d'un ressort. Une butée d'un loquet permet de faire reculer le percuteur en bandant son ressort, lors de la rotation d'un levier d'armement. Ce dernier fait pivoter un deuxième levier autour d'un axe qui comporte un cliquet coopérant avec le loquet. En fin de rotation du levier d'armement, le cliquet se désolidarise du loquet qui libère le percuteur.Patent DE147526 describes a firing device for an artillery comprising a striker subjected to the action of a spring. A latch stopper allows roll back the striker by bandaging its spring, when of the rotation of an arming lever. This last fact pivot a second lever around an axis which has a pawl cooperating with the latch. At the end of rotation cocking lever, the pawl detaches from the latch that releases the striker.

Ce concept permet de bander le ressort du percuteur seulement au moment de la mise à feu, ce qui évite les inconvénients précités. Néanmoins dans ce concept, la manoeuvre de rotation du levier d'armement nécessite un volume de dégagement important sous le dispositif de mise à feu. This concept makes it possible to band the spring of the striker only at the time of ignition, which avoids aforementioned drawbacks. However in this concept, the cocking lever rotation operation requires a large clearance volume under the delivery device fire.

Le but de la présente invention est de fournir un nouveau concept de manoeuvre d'un percuteur n'entraínant aucune mise en tension constante d'un ressort attelé à ce percuteur et d'encombrement réduit.The object of the present invention is to provide a new concept for maneuvering a non-entraining striker no constant tensioning of a spring coupled to it striker and reduced size.

L'invention a donc pour objet un dispositif de mise à feu pour artillerie par percussion d'étoupilles à l'aide d'un percuteur mobile en translation par rapport à un support, le percuteur étant entraíné en translation par des moyens d'actionnement assurant successivement :

  • le passage du percuteur d'une position de repos à une position d'armement dans laquelle un moyen de projection du percuteur est armé,
  • le passage du percuteur de la position d'armement à une position de mise à feu dans laquelle il se trouve poussé par le moyen de projection sur une étoupille,
  • le retour du percuteur à la position de repos, les moyens d'actionnement assurant un maintien du percuteur dans cette position de repos,
   dispositif de mise à feu caractérisé en ce que les moyens d'actionnement comprennent :
  • un levier relié au percuteur et articulé par rapport au support,
  • un cliquet pivotant apte à libérer le levier,
  • un moyen de projection agissant sur le levier et solidaire du support,
  • des moyens d'entraínement agissant sur le cliquet et provoquant par son intermédiaire la rotation du levier et par suite l'armement du percuteur, puis la libération de ce levier,
   et en ce que le moyen d'entraínement en rotation du levier est constitué par une tringle de commande mobile en translation par rapport au support, ladite tringle étant munie d'encoches coopérant avec le cliquet d'une part et d'un talon coopérant avec le levier d'autre part.The invention therefore relates to a firing device for artillery by percussion of pins using a movable striker in translation relative to a support, the striker being driven in translation by actuating means ensuring successively:
  • the passage of the striker from a rest position to an arming position in which a means for projecting the striker is armed,
  • the passage of the striker from the cocking position to a firing position in which it is pushed by the projection means on a choke,
  • the return of the striker to the rest position, the actuation means ensuring that the striker is held in this rest position,
firing device characterized in that the actuation means comprise:
  • a lever connected to the striker and articulated relative to the support,
  • a pivoting pawl capable of releasing the lever,
  • a projection means acting on the lever and integral with the support,
  • drive means acting on the pawl and causing through it the rotation of the lever and consequently arming the striker, then the release of this lever,
and in that the means for driving the lever in rotation consists of a control rod movable in translation relative to the support, said rod being provided with notches cooperating with the pawl on the one hand and a heel cooperating with the lever on the other hand.

Avantageusement une première encoche présente un profil cylindrique, dans lequel le cliquet entame sa rotation, suivi d'une seconde encoche dans laquelle s'efface le cliquet pour permettre la rotation du levier autour de son axe.Advantageously, a first notch presents a cylindrical profile, in which the pawl begins its rotation, followed by a second notch in which clears the pawl to allow rotation of the lever around its axis.

La seconde encoche présente une profondeur correspondant à la course de percussion du percuteur.The second notch has a depth corresponding to the percussion stroke of the striker.

Avantageusement le talon est situé au delà de la seconde encoche pour coopérer avec une rampe aménagée sur le levier pour ramener celui-ci en position initiale.Advantageously, the heel is located beyond the second notch to cooperate with a ramp fitted on the lever to return it to the initial position.

La tringle est ramenée en position initiale par un ressort de rappel et elle est entraínée en translation à l'aide d'un vérin hydraulique.The rod is returned to the initial position by a return spring and it is driven in translation at using a hydraulic cylinder.

Le moyen de projection du levier est constitué d'un bras dont une extrémité est en appui sur le levier et l'autre fixée rigidement à une barre de torsion, l'autre extrémité du bras et de la barre étant fixée au support.The lever projection means consists of a arm of which one end is supported on the lever and the other rigidly attached to a torsion bar, the other end of the arm and the bar being fixed to the support.

Le levier présente une extrémité fixée au percuteur et l'autre fixée à un axe de rotation par rapport au support, le cliquet étant monté rotatif par rapport à ce levier en un point situé entre ses deux extrémités.The lever has one end fixed to the striker and the other fixed to an axis of rotation relative to the support, the pawl being rotatably mounted relative to this lever at a point between its two ends.

La barre de torsion est mise initialement en précontrainte.The torsion bar is initially put in prestressing.

Le levier peut être réalisé sous la forme d'une plaque présentant des jours permettant de réduire son moment d'inertie.The lever can be realized in the form of a plate with days to reduce its moment of inertia.

Avantageusement le cliquet est attelé au levier par l'intermédiaire d'un ressort.Advantageously, the pawl is coupled to the lever by through a spring.

Selon une réalisation particulière, le percuteur présente une première rainure perpendiculaire à l'axe du percuteur dans laquelle l'extrémité du levier est engagée et un pion débouchant dans celle-ci, pour maintenir le levier dans cette rainure.According to a particular embodiment, the striker has a first groove perpendicular to the axis of the striker in which the end of the lever is engaged and a pawn emerging therein, to maintain the lever in this groove.

Le percuteur est muni de moyens permettant son extraction comprenant au moins deux encoches sur sa face arrière pour permettre sa préhension, et une seconde rainure parallèle à l'axe du percuteur communiquant avec la première rainure, le levier parcourant la seconde rainure après effacement du pion et rotation du percuteur.The striker is provided with means allowing its extraction comprising at least two notches on its face rear to allow its grip, and a second groove parallel to the striker axis communicating with the first groove, the lever traversing the second groove after erasing the pawn and rotating the striker.

Un tout premier résultat du dispositif selon l'invention réside en ce que le percuteur est toujours en position de repos même lorsque la culasse de l'arme est fermée.A very first result of the device according to the invention resides in that the striker is always in rest position even when the breech of the weapon is closed.

Un autre résultat réside dans le fait que le percuteur n'est pas maintenu par un moyen d'arrêt prévenant la détente d'un ressort.Another result is that the striker is not maintained by a stop means preventing the relaxation of a spring.

Un autre avantage est la possibilité de régler la précontrainte de la barre de torsion.Another advantage is the possibility of adjusting the prestressing of the torsion bar.

Un autre avantage est la compacité du dispositif de mise à feu.Another advantage is the compactness of the Firing.

D'autres caractéristiques, détails et avantages de l'invention apparaítront plus clairement à la lecture du complément de description donné ci-après de modes de réalisation donnés à titre d'illustration en relation avec des dessins sur lesquels :

  • la figure 1 est une coupe longitudinale partielle de la partie arrière d'une arme passant par le percuteur,
  • la figure 2 représente une vue de dessous de la figure 1,
  • la figure 3 montre une phase de fonctionnement,
  • la figure 4 montre une autre phase de fonctionnement,
  • la figure 5 est une coupe AA de la figure 2,
  • la figure 6 est une vue extérieure du percuteur,
  • la figure 7 est une coupe transversale BB de la figure 6.
Other characteristics, details and advantages of the invention will appear more clearly on reading the additional description given below of embodiments given by way of illustration in relation to the drawings in which:
  • FIG. 1 is a partial longitudinal section of the rear part of a weapon passing through the striker,
  • FIG. 2 represents a bottom view of FIG. 1,
  • FIG. 3 shows an operating phase,
  • FIG. 4 shows another phase of operation,
  • FIG. 5 is a section AA of FIG. 2,
  • FIG. 6 is an external view of the striker,
  • FIG. 7 is a cross section BB of FIG. 6.

Sur la figure 1, on a représenté une coupe partielle de l'arme au niveau du percuteur d'étoupilles dans le sens longitudinal. Sur cette figure, on repère le support 1 correspondant à la partie arrière de l'arme (non représentée) sur lequel les différents éléments nécessaires à la compréhension de l'invention sont représentés. Pour la mise à feu, l'arme est équipée d'un percuteur 2 monté coulissant dans un logement 3 solidaire du support 1. Bien entendu, un ensemble d'étoupilles (non représenté) est disposé face à la pointe de ce percuteur et ces étoupilles sont initiées au fur et à mesure par percussion au cours de la translation du percuteur.In Figure 1, there is shown a partial section of the weapon at the pin striker in the longitudinal direction. In this figure, we identify the support 1 corresponding to the rear part of the weapon (no shown) on which the different elements necessary for understanding the invention are represented. For firing, the weapon is equipped with a striker 2 slidably mounted in an integral housing 3 of the support 1. Of course, a set of pins (not shown) is arranged facing the tip of this striker and these nipples are initiated as and when percussion during translation of the striker.

Suivant l'invention, le percuteur 2 est attelé à des moyens d'actionnement constitués principalement d'un levier 4, d'un cliquet 9, d'un moyen de projection se présentant sous la forme d'un bras 11 et d'une barre de torsion 18 et de moyens d'entraínement se présentant sous la forme d'une tringle mobile 12. Le levier 4 est articulé dans une chape 5 solidaire du support 1. Sur la figure 1, on voit l'axe d'articulation 6 permettant au levier 4 d'exécuter son mouvement de rotation dans le plan de la figure. Le levier 4 présente un certain nombre de jours 7 destinés à l'alléger pour diminuer son moment d'inertie par rapport à son axe de rotation 6 et diminuer ainsi le temps de réponse de la percussion. Le levier 4 est muni d'une face 8 sur laquelle un cliquet 9, monté rotatif par rapport à ce levier autour d'un axe 10, est maintenu en appui constant (suivant le sens de la flèche) par l'intermédiaire d'un ressort de rappel non représenté.According to the invention, the striker 2 is coupled to actuation means consisting mainly of a lever 4, a pawl 9, a projection means in the form of an arm 11 and a bar twist 18 and drive means appearing under the shape of a movable rod 12. The lever 4 is articulated in a yoke 5 secured to the support 1. On the Figure 1, we see the hinge axis 6 allowing the lever 4 to execute its rotational movement in the plan of the figure. Lever 4 has a number of 7 days intended to lighten it to decrease its moment of inertia with respect to its axis of rotation 6 and decrease thus the response time of the percussion. Leverage 4 is provided with a face 8 on which a pawl 9, mounted rotatable relative to this lever around an axis 10, is maintained in constant support (in the direction of the arrow) via a return spring not represented.

Le bras 11 est engagé dans l'un des jours, le jour 7a par exemple, pour entraíner le levier 4 comme il sera expliqué ci-après.Arm 11 is engaged in one of the days, day 7a for example, to drive lever 4 as it will explained below.

La tringle 12 disposée sensiblement parallèlement au levier 4 est montée coulissante dans une chape 13 fixée au support 1 et est attelée à un ressort 14 dont le rôle est de la ramener dans sa position initiale telle que schématisée sur la figure 1. La tringle 12 est munie d'une première encoche 15 cylindrique, d'une seconde encoche 16 et d'un talon 17. Le cliquet 9 est susceptible d'occuper la première et la seconde encoches comme cela sera expliqué ultérieurement lorsqu'un mouvement de traction est exercé sur la tringle 12. The rod 12 arranged substantially parallel to the lever 4 is slidably mounted in a clevis 13 fixed to support 1 and is coupled to a spring 14 whose role is to bring it back to its original position such that shown schematically in Figure 1. The rod 12 is provided a first cylindrical notch 15, a second notch 16 and a heel 17. The pawl 9 is susceptible to occupy the first and second notches like this will be explained later when a movement of traction is exerted on the rod 12.

Sur la figure 1, on voit que le percuteur 2 est légèrement en saillie par rapport au support 1 suivant une distance d1, mais il est bien entendu suffisamment écarté de l'amorce de l'étoupille dans la position repos.In Figure 1, we see that the striker 2 is slightly protruding from the next support 1 a distance d1, but it is of course enough away from the start of the towing rod in the rest position.

Sur la figure 2, on a représenté en vue de dessous le support 1, le percuteur 2, le levier 4 et la tringle 12 attelée à son ressort 14. Le bras 11 est lié mécaniquement à l'extrémité d'une barre de torsion 18 disposée dans un logement 19 pratiqué dans le support 1. L'autre extrémité de la barre de torsion 18 est fixée rigidement dans le logement 19, par exemple à l'aide d'une plaque 20. On s'arrange au montage pour que la barre 18 soit soumise à une légère torsion de précontrainte.In Figure 2, there is shown in bottom view the support 1, striker 2, lever 4 and rod 12 coupled to its spring 14. The arm 11 is linked mechanically at the end of a torsion bar 18 arranged in a housing 19 formed in the support 1. The other end of the torsion bar 18 is fixed rigidly in the housing 19, for example using of a plate 20. We arrange the assembly so that the bar 18 is subjected to a slight twist of prestressing.

La percussion est réalisée de la manière suivante.Percussion is performed as follows.

A partir de la phase initiale de repos représentée sur la figure 1, on exerce une traction sur la tringle 12 par exemple à l'aide d'un vérin hydraulique non représenté, pour arriver à la phase de fonctionnement illustrée sur la figure 3. Dans cette position intermédiaire, le cliquet 9 a parcouru l'encoche 15 et se trouve proche de l'encoche 16. La tringle 12 pousse le cliquet et provoque une rotation du levier 4 et par suite l'escamotage du percuteur 2 par rapport au support 1 suivant la distance d2. Durant cette phase, le percuteur est déplacé d'une distance d2 par rapport au support 1 et la torsion de la barre 18 se trouve augmentée.From the initial rest phase shown in FIG. 1, traction is exerted on the rod 12 for example using a hydraulic cylinder not shown, to arrive at the operating phase illustrated in Figure 3. In this position intermediate, the pawl 9 has passed through the notch 15 and is found near the notch 16. The rod 12 pushes the ratchet and causes rotation of lever 4 and consequently the retraction of the striker 2 relative to the support 1 along the distance d2. During this phase, the striker is moved by a distance d2 relative to the support 1 and the torsion of the bar 18 is increased.

La figure 4 illustre une phase finale de fonctionnement dans laquelle le cliquet 9 s'est engagé dans l'encoche 16 par suite d'une translation supplémentaire de la tringle 12. Le cliquet 9 s'étant échappé brutalement dans l'encoche 16, la barre de torsion 18 peut alors se détendre et projeter fortement le percuteur 2 sous l'action du bras 11 vers l'amorce de l'étoupille pour venir l'initier. Sur la figure, on voit la saillie d3 très importante du percuteur par rapport au support 1 qui est suffisante pour provoquer l'initiation de l'étoupille placée en regard.Figure 4 illustrates a final phase of operation in which the pawl 9 has engaged in the notch 16 as a result of a translation additional rod 12. The pawl 9 being suddenly escaped into notch 16, the bar of twist 18 can then relax and project strongly the striker 2 under the action of the arm 11 towards the initiation of the suffocation to initiate it. In the figure, we see the very large protrusion d3 of the striker relative to the support 1 which is sufficient to cause initiation of the suffocation placed opposite.

Le réarmement se fait de la manière suivante.The rearming is done as follows.

Le percuteur 2 est ramené en position initiale, c'est-à-dire dans la position de repos représentée sur la figure 1, sous l'action du ressort 14. En effet, le ressort 14 est comprimé lorsque la tringle 12 est tirée par le vérin hydraulique. Au cours de son mouvement de détente, le ressort 14 ramène la tringle 12 dans le sens contraire de la flèche F et le talon 17 de la tringle parcourt une rampe 21 aménagée sur le levier 4 comme montré sur la figure 4. Ce levier 4 est repoussé et le cliquet 9 est dégagé de l'encoche 16 par pivotement autour de son axe 10 en passant par la position intermédiaire représentée sur la figure 3 et vient occuper la position initiale représentée sur la figure 1 en revenant dans l'encoche 15. A la fin de ce mouvement, le cliquet 9 revient en appui sur la face 8 du levier 4.The striker 2 is returned to the initial position, that is to say in the rest position shown on the Figure 1, under the action of the spring 14. Indeed, the spring 14 is compressed when the rod 12 is pulled by the hydraulic cylinder. During its movement of rebound, the spring 14 brings the rod 12 in the direction opposite of arrow F and heel 17 of rod runs along a ramp 21 arranged on the lever 4 as shown in Figure 4. This lever 4 is pushed back and the pawl 9 is released from notch 16 by pivoting around its axis 10 passing through the position intermediate shown in Figure 3 and comes occupy the initial position shown in Figure 1 going back to notch 15. At the end of this movement, the pawl 9 returns to bear on the face 8 of the lever 4.

Un nouveau cycle peut alors recommencer.A new cycle can then start again.

Sur la figure 5, on a représenté le bras 11 actionnant le levier 4. On voit que le bras 11 est logé dans un logement 22 pratiqué dans le support 1. Une extrémité du bras 11 est solidaire de la barre de torsion 18 et l'autre extrémité est engagée dans le jour 7a du levier 4.In Figure 5, there is shown the arm 11 actuating the lever 4. We see that the arm 11 is housed in a housing 22 made in the support 1. A end of the arm 11 is integral with the torsion bar 18 and the other end is engaged in day 7a of lever 4.

Sur la figure 6, on a représenté une coupe longitudinale du percuteur 2 qui présente une première rainure 23 perpendiculaire à l'axe du percuteur, une seconde rainure 24 parallèle à l'axe du percuteur et un raccord 25 de ces deux rainures. En fonctionnement, le levier 4 est positionné dans la première rainure 23 et son débattement est limité par un pion 26 débouchant dans la première rainure 23 (voir la figure 7). Ce pion est placé dans un logement 27 du percuteur et se trouve poussé par un ressort 28 bloqué par un bouchon 29 vissé dans le logement 27. Bien entendu, le logement 27 et le pion 26 sont munis chacun d'un épaulement permettant de fixer la position finale du pion. D'autre part, le percuteur 2 peut être retiré de son logement en cas d'échange ou pour le neutraliser. A cette fin, le percuteur 2 est muni sur sa face arrière de deux encoches 30 (figure 6) dans lesquelles on vient positionner un outil qui permet de faire tourner le percuteur d'un quart de tour. La rotation du percuteur 2 fait reculer le pion 26 contre la poussée élastique du ressort 28 et le levier 4 peut alors passer de la rainure première 23 à la seconde rainure 24. Le percuteur peut être ensuite extrait de son logement. Pour replacer le percuteur on procède de manière inverse.In Figure 6, there is shown a section longitudinal of striker 2 which has a first groove 23 perpendicular to the axis of the striker, a second groove 24 parallel to the axis of the striker and a connection 25 of these two grooves. In operation, the lever 4 is positioned in the first groove 23 and its travel is limited by a pin 26 opening into the first groove 23 (see Figure 7). This pawn is placed in a housing 27 of the striker and is located pushed by a spring 28 blocked by a screwed plug 29 in the housing 27. Of course, the housing 27 and the pin 26 are each provided with a shoulder allowing fix the final position of the pawn. On the other hand, the striker 2 can be removed from its housing in case exchange or to neutralize it. To this end, the striker 2 is provided on its rear face with two notches 30 (FIG. 6) in which there is positioned a tool that turns the striker a quarter of turn. The rotation of the striker 2 causes the counter to move back 26 against the elastic thrust of the spring 28 and the lever 4 can then pass from the first groove 23 to the second groove 24. The striker can then be extract from his home. To replace the striker, does the opposite.

Claims (13)

Dispositif de mise à feu pour artillerie par percussion d'étoupilles à l'aide d'un percuteur (2) mobile en translation par rapport à un support (1), le percuteur (2) étant entraíné en translation par des moyens d'actionnement (4, 9, 11, 12, 18) assurant successivement : le passage du percuteur d'une position de repos à une position d'armement dans laquelle un moyen de projection du percuteur est armé, le passage du percuteur de la position d'armement à une position de mise à feu dans laquelle il se trouve poussé par le moyen de projection sur une étoupille, le retour du percuteur à la position de repos, les moyens d'actionnement assurant un maintien du percuteur dans cette position de repos,    dispositif de mise à feu caractérisé en ce que les moyens d'actionnement comprennent : un levier (4) relié au percuteur (2) et articulé par rapport au support (1), un cliquet (9) pivotant apte à libérer le levier (4), un moyen de projection (11, 18) agissant sur le levier et solidaire du support (1), des moyens d'entraínement (12) agissant sur le cliquet (9) et provoquant par son intermédiaire la rotation du levier (4) et par suite l'armement du percuteur (2), puis la libération de ce levier (4),    et en ce que le moyen d'entraínement en rotation du levier est constitué par une tringle (12) de commande mobile en translation par rapport au support (1), ladite tringle étant munie d'encoches (15, 16) coopérant avec le cliquet (9) d'une part et d'un talon (17) coopérant avec le levier (4) d'autre part. Firing device for artillery by percussion of pins using a striker (2) movable in translation relative to a support (1), the striker (2) being driven in translation by actuating means (4, 9, 11, 12, 18) successively ensuring: the passage of the striker from a rest position to an arming position in which a means for projecting the striker is armed, the passage of the striker from the cocking position to a firing position in which it is pushed by the projection means on a choke, the return of the striker to the rest position, the actuation means ensuring that the striker is held in this rest position, firing device characterized in that the actuation means comprise: a lever (4) connected to the striker (2) and articulated relative to the support (1), a pivoting pawl (9) capable of releasing the lever (4), a projection means (11, 18) acting on the lever and secured to the support (1), drive means (12) acting on the pawl (9) and causing through it the rotation of the lever (4) and consequently arming the striker (2), then the release of this lever (4), and in that the means for driving the lever in rotation consists of a rod (12) for movable control in translation relative to the support (1), said rod being provided with notches (15, 16) cooperating with the pawl (9) on the one hand and a heel (17) cooperating with the lever (4) on the other hand. Dispositif de mise à feu selon la revendication 1, caractérisé en ce qu'une première encoche (15) présente un profil cylindrique, dans lequel le cliquet (9) entame sa rotation, suivi d'une seconde encoche (16) dans laquelle s'efface le cliquet (9) pour permettre la rotation du levier (4) autour de son axe (6).Firing device according to claim 1, characterized in that a first notch (15) has a cylindrical profile, in which the pawl (9) starts its rotation, followed by a second notch (16) in which clears the pawl (9) to allow the rotation of the lever (4) about its axis (6). Dispositif de mise à feu selon la revendication 2, caractérisé en ce que la seconde encoche (16) présente une profondeur correspondant à la course de percussion du percuteur.Firing device according to claim 2, characterized in that the second notch (16) has a depth corresponding to the percussion stroke of the striker. Dispositif de mise à feu selon la revendication 3, caractérisé en ce que le talon (17) est situé au delà de la seconde encoche (16) pour coopérer avec une rampe (21) aménagée sur le levier (4) pour ramener celui-ci en position initiale.Firing device according to claim 3, characterized in that the heel (17) is located beyond the second notch (16) for cooperating with a ramp (21) fitted on the lever (4) to bring the latter back initial position. Dispositif de mise à feu selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la tringle (12) est ramenée en position initiale par un ressort de rappel.Firing device according to any one of claims 1 to 4, characterized in that the rod (12) is returned to the initial position by a spring. Dispositif de mise à feu selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la tringle (12) est entraínée en translation à l'aide d'un vérin hydraulique.Firing device according to any one of claims 1 to 5, characterized in that the rod (12) is driven in translation using a hydraulic cylinder. Dispositif de mise à feu selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le moyen de projection du levier est constitué d'un bras (11) dont une extrémité est en appui sur le levier (4) et l'autre fixée rigidement à une barre de torsion (18), l'autre extrémité du bras et de la barre étant fixée au support (1) .Firing device according to any one claims 1 to 6, characterized in that the means projection lever consists of an arm (11) of which one end is supported on the lever (4) and the other rigidly attached to a torsion bar (18), the other end of the arm and bar being fixed to the support (1). Dispositif de mise à feu selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le levier (4) présente une extrémité fixée au percuteur (2) et l'autre fixée à un axe (6) de rotation par rapport au support (1), le cliquet (9) étant monté rotatif par rapport à ce levier (4) en un point situé entre ses deux extrémités.Firing device according to any one claims 1 to 7, characterized in that the lever (4) has one end fixed to the striker (2) and the other fixed to an axis (6) of rotation relative to the support (1), the pawl (9) being rotatably mounted by relative to this lever (4) at a point between its two extremities. Dispositif de mise à feu selon la revendication 7, caractérisé en ce que la barre de torsion (18) est mise initialement en précontrainte.Firing device according to claim 7, characterized in that the torsion bar (18) is placed initially prestressed. Dispositif de mise à feu selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le levier (4) est réalisé sous la forme d'une plaque présentant des jours (7) permettant de réduire son moment d'inertie.Firing device according to any one claims 1 to 9, characterized in that the lever (4) is produced in the form of a plate having days (7) to reduce its moment of inertia. Dispositif de mise à feu selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le cliquet (9) est attelé au levier (4) par l'intermédiaire d'un ressort.Firing device according to any one of claims 1 to 10, characterized in that the pawl (9) is coupled to the lever (4) via of a spring. Dispositif de mise à feu selon l'une quelconque des revendications précédentes, caractérisé en ce que le percuteur (2) présente une première rainure (23) perpendiculaire à l'axe du percuteur dans laquelle l'extrémité du levier (4) est engagée et un pion (26) débouchant dans celle-ci, pour maintenir le levier dans cette rainure.Firing device according to any one of the preceding claims, characterized in that the striker (2) has a first groove (23) perpendicular to the axis of the striker in which the end of the lever (4) is engaged and a pin (26) opening into it, to keep the lever in this groove. Dispositif de mise à feu selon la revendication 12, caractérisé en ce que le percuteur (2) est muni de moyens permettant son extraction comprenant au moins deux encoches (30) sur sa face arrière pour permettre sa préhension, et une seconde rainure (24) parallèle à l'axe du percuteur communiquant avec la première rainure (23), le levier (4) parcourant la seconde rainure (24) après effacement du pion (26) et rotation du percuteur.Firing device according to claim 12, characterized in that the striker (2) is provided with means allowing its extraction comprising at least two notches (30) on its rear face to allow its grip, and a second groove (24) parallel to the axis of the striker communicating with the first groove (23), the lever (4) traversing the second groove (24) after erasure of the pin (26) and rotation of the striker.
EP00401872A 1999-07-09 2000-06-30 Firing device for ordnance by percussion of a fuse Expired - Lifetime EP1067353B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908911 1999-07-09
FR9908911A FR2796140B1 (en) 1999-07-09 1999-07-09 FIRE-FIGHTING DEVICE FOR PERCUSSION ARTILLERY OF A SHUTTER

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EP1067353A1 true EP1067353A1 (en) 2001-01-10
EP1067353B1 EP1067353B1 (en) 2003-08-27

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EP00401872A Expired - Lifetime EP1067353B1 (en) 1999-07-09 2000-06-30 Firing device for ordnance by percussion of a fuse

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US (1) US6450080B1 (en)
EP (1) EP1067353B1 (en)
DE (1) DE60004740T2 (en)
ES (1) ES2206160T3 (en)
FR (1) FR2796140B1 (en)

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US7555977B2 (en) 2005-09-23 2009-07-07 Bae Systems Land & Armaments L.P. Firing pin and valve assembly
US9546840B1 (en) * 2015-01-14 2017-01-17 The United States Of America As Represented By The Secretary Of The Army Bi-directional recoil containment and double strike prevention system

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GB191419934A (en) * 1914-09-18 1915-09-20 Arthur Trevor Dawson Improvements in or relating to the Firing Mechanism of Breech Loading Ordnance.
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Also Published As

Publication number Publication date
ES2206160T3 (en) 2004-05-16
DE60004740D1 (en) 2003-10-02
DE60004740T2 (en) 2004-03-25
FR2796140B1 (en) 2002-08-23
FR2796140A1 (en) 2001-01-12
EP1067353B1 (en) 2003-08-27
US6450080B1 (en) 2002-09-17

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