EP1067353B1 - 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
EP1067353B1
EP1067353B1 EP00401872A EP00401872A EP1067353B1 EP 1067353 B1 EP1067353 B1 EP 1067353B1 EP 00401872 A EP00401872 A EP 00401872A EP 00401872 A EP00401872 A EP 00401872A EP 1067353 B1 EP1067353 B1 EP 1067353B1
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EP
European Patent Office
Prior art keywords
lever
firing device
strike pin
pin
strike
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.)
Expired - Lifetime
Application number
EP00401872A
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German (de)
French (fr)
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EP1067353A1 (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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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • 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 bolts.
  • Firing devices for artillery comprise, in known manner, a striker subjected to the action of a spring.
  • This spring being compressed, it forces the striker in an armed rear position during any the use of the weapon, that is to say as long as the fire is not triggered.
  • the striker is released, the spring projects it on the primer of the pinch to ensure firing.
  • striker release means and means for bring this striker back into position and ensure blocking See US Pat. No. 2,245,621 who describes a firing pin of this kind where this one is placed in an armed position when closing the cylinder head. It is not desirable to use such system because it is likely to lead to fire, which can be very dangerous for the servants of the weapon.
  • DE147526 discloses a firing device for an artillery with a striker subject to the action of a spring.
  • a stop of a latch allows back the striker by binding his spring, when rotation of a cocking lever. This last fact pivot a second lever around an axis that has a pawl cooperating with the latch. At the end of rotation of the cocking lever, the pawl disengages from the latch that releases the striker.
  • the object of the present invention is to provide a new concept of maneuvering a striker no constant tensioning of a spring coupled to this striker and reduced size.
  • a first notch presents a cylindrical profile, in which the ratchet starts its rotation, followed by a second notch in which clears the ratchet to allow rotation of the lever around its axis.
  • the second notch has a depth corresponding to the firing stroke of the firing pin.
  • the heel is located beyond the second notch to cooperate with a ramp arranged on the lever to return it to the initial position.
  • the rod is returned to the initial position by a spring and is driven in translation to using a hydraulic cylinder.
  • the projection means of the lever consists of a arm whose 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 an end attached to the firing pin and the other attached to an axis of rotation with respect to support, the ratchet 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 via 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 opening into it, to maintain the lever in this groove.
  • the firing pin is equipped with means allowing its extraction comprising at least two notches on its face back to allow grip, and a second groove parallel to the axis of the firing pin communicating with the first groove, the lever traversing the second groove after erasing the pin and rotating the striker.
  • a 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 ability to adjust the prestressing of the torsion bar.
  • Another advantage is the compactness of the device Firing.
  • FIG 1 there is shown a partial section of the weapon at the striker striker in the longitudinal direction.
  • the support 1 corresponding to the rear part of the weapon (no represented) on which the different elements necessary for the understanding of the invention are represented.
  • the weapon is equipped with a striker 2 slidably mounted in a housing 3 secured of support 1.
  • a set of pins (no shown) is disposed opposite the tip of this firing pin and these loops are initiated as and when percussion during the translation of the striker.
  • the striker 2 is coupled to actuating means consisting mainly of a lever 4, a ratchet 9, a projection means presenting in the form of an arm 11 and a bar of torsion 18 and training means presented under the shape of a movable rod 12.
  • the lever 4 is articulated in a clevis 5 secured to the support 1.
  • FIG. 1 shows the hinge axis 6 allowing the lever 4 to execute its rotational motion in the plane of the figure.
  • Lever 4 has a number 7 days to lighten it to reduce its moment of inertia with respect to its axis of rotation 6 and decrease thus the response time of the percussion.
  • the lever 4 is provided with a face 8 on which a ratchet 9, mounted rotation relative to this lever about an axis 10, is maintained in constant support (in the direction of the arrow) via a non-return spring represent.
  • the arm 11 is engaged in one of the days, the day 7a for example, to drive lever 4 as it will be explained below.
  • the rod 12 disposed substantially parallel to the lever 4 is slidably mounted in a fixed yoke 13 to the support 1 and is coupled to a spring 14 whose role is to bring it back to its original position as schematically in Figure 1.
  • the rod 12 is provided a first notch 15 cylindrical, a second notch 16 and a heel 17.
  • the ratchet 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 hitched to its spring 14.
  • the arm 11 is linked mechanically at the end of a torsion bar 18 arranged in a housing 19 made 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.
  • the percussion is performed in the following manner.
  • Figure 4 illustrates a final phase of operation in which the ratchet 9 is engaged in the notch 16 as a result of a translation addition of the rod 12.
  • the ratchet 9 being escaped abruptly 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 primer of the starter to initiate him.
  • the projection d3 very important of the striker with respect to support 1 which is sufficient to provoke the initiation the pin placed opposite.
  • the rearming is done as follows.
  • Striker 2 is returned to the initial position, that is to say in the rest position represented on the Figure 1, under the action of the spring 14.
  • the spring 14 is compressed when the rod 12 is drawn by the hydraulic cylinder.
  • the spring 14 brings the rod 12 in the direction opposite of the arrow F and the heel 17 of the rod runs a ramp 21 fitted on the lever 4 as shown in FIG. 4.
  • This lever 4 is pushed back and the ratchet 9 is disengaged from the notch 16 by pivoting around its axis 10 through the position intermediate shown in Figure 3 and comes occupy the initial position shown in Figure 1 returning to the notch 15.
  • the pawl 9 rests on the face 8 of the lever 4.
  • a new cycle can then start again.
  • the arm 11 is shown actuating the lever 4. It can be seen that the arm 11 is housed in a housing 22 practiced in the support 1. A end of the arm 11 is integral with the torsion bar 18 and the other end is engaged in the day 7a of the lever 4.
  • FIG. 6 a section is shown longitudinal striker 2 which presents a first groove 23 perpendicular to the axis of the firing pin, a second groove 24 parallel to the axis of the firing pin and a connection 25 of these two grooves.
  • the lever 4 is positioned in the first groove 23 and its deflection is limited by a pawn 26 opening in 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 cap 29 in the dwelling 27.
  • the dwelling 27 and the 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 ( Figure 6) in which one comes to position a tool that makes it possible to turn the firing pin of a quarter of turn.
  • the rotation of the striker 2 makes the pawn move back 26 against the elastic thrust of the spring 28 and the lever 4 can then go from the first groove 23 to the second groove 24.
  • the striker can be next extracted from his home. To replace the striker proceeds in the opposite way.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Air Bags (AREA)

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 bolts.

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.Firing devices for artillery comprise, in known manner, a striker subjected to the action of a spring. This spring being compressed, it forces the striker in an armed rear position during any the use of the weapon, that is to say as long as the fire is not triggered. When the striker is released, the spring projects it on the primer of the pinch to ensure firing. We understand with such a device, it is imperative to provide striker release means and means for bring this striker back into position and ensure blocking. Reference may be made to US Pat. No. 2,245,621 who describes a firing pin of this kind where this one is placed in an armed position when closing the cylinder head. It is not desirable to use such system because it is likely to lead to 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.DE147526 discloses a firing device for an artillery with a striker subject to the action of a spring. A stop of a latch allows back the striker by binding his spring, when rotation of a cocking lever. This last fact pivot a second lever around an axis that has a pawl cooperating with the latch. At the end of rotation of the cocking lever, the pawl disengages 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 allows the firing pin spring to be bandaged only at the moment of firing, which avoids the aforementioned drawbacks. Nevertheless in this concept, the rotation maneuver of the cocking lever requires a large clearance volume under the setting 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 of maneuvering a striker no constant tensioning of a spring coupled to this 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 subject of the invention is therefore a firing device for artillery by percussion of bolts with the aid of a striker movable 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 projection means of the firing pin is armed,
  • the passage of the firing pin from the cocking position to a firing position in which it is pushed by the projection means on a pin,
  • the return of the striker to the rest position, the actuating means ensuring a holding of the striker in this rest position,
firing device characterized in that the actuating means comprise:
  • a lever connected to the striker and hinged relative to the support,
  • a pivoting ratchet capable of releasing the lever,
  • projection means acting on the lever and secured to the support,
  • actuating means acting on the pawl and causing through it the rotation of the lever and therefore the arming of the firing pin, and then the release of this lever,
and in that the means for rotating the lever is constituted by 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 ratchet starts its rotation, followed by a second notch in which clears the ratchet 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 firing stroke of the firing pin.

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 arranged 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 spring and is driven in translation to 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 projection means of the lever consists of a arm whose 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 an end attached to the firing pin and the other attached to an axis of rotation with respect to support, the ratchet 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 via 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 opening into it, 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 firing pin is equipped with means allowing its extraction comprising at least two notches on its face back to allow grip, and a second groove parallel to the axis of the firing pin communicating with the first groove, the lever traversing the second groove after erasing the pin 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 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 firing pin is not held by 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 ability to adjust 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 device 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 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 view from below of FIG. 1,
  • FIG. 3 shows a phase of operation,
  • 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,
  • Figure 7 is a cross section BB of Figure 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 striker striker in the longitudinal direction. In this figure, we find the support 1 corresponding to the rear part of the weapon (no represented) on which the different elements necessary for the understanding of the invention are represented. For firing, the weapon is equipped with a striker 2 slidably mounted in a housing 3 secured of support 1. Of course, a set of pins (no shown) is disposed opposite the tip of this firing pin and these loops are initiated as and when percussion during the 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 actuating means consisting mainly of a lever 4, a ratchet 9, a projection means presenting in the form of an arm 11 and a bar of torsion 18 and training means presented under the shape of a movable rod 12. The lever 4 is articulated in a clevis 5 secured to the support 1. On the FIG. 1 shows the hinge axis 6 allowing the lever 4 to execute its rotational motion in the plane of the figure. Lever 4 has a number 7 days to lighten it to reduce its moment of inertia with respect to its axis of rotation 6 and decrease thus the response time of the percussion. The lever 4 is provided with a face 8 on which a ratchet 9, mounted rotation relative to this lever about an axis 10, is maintained in constant support (in the direction of the arrow) via a non-return spring represent.

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.The arm 11 is engaged in one of the days, the day 7a for example, to drive lever 4 as it will be 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 disposed substantially parallel to the lever 4 is slidably mounted in a fixed yoke 13 to the support 1 and is coupled to a spring 14 whose role is to bring it back to its original position as schematically in Figure 1. The rod 12 is provided a first notch 15 cylindrical, a second notch 16 and a heel 17. The ratchet 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 FIG. 1, it can be seen that the striker 2 is slightly protruding from support 1 next a distance d1, but it is of course enough away from the primer of the chuck 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 hitched to its spring 14. The arm 11 is linked mechanically at the end of a torsion bar 18 arranged in a housing 19 made 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 subject to a slight twist of prestressing.

La percussion est réalisée de la manière suivante.The percussion is performed in the following manner.

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 represented in Figure 1, a pull is exerted on the rod 12 for example using a non-hydraulic cylinder represented, to reach the operating phase illustrated in Figure 3. In this position intermediate, the ratchet 9 has traveled through the notch 15 and is close to the notch 16. The rod 12 pushes the ratchet and causes a rotation of the lever 4 and consequently the retraction of the firing pin 2 relative to the support 1 following the distance d2. During this phase, the striker is displaced 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 ratchet 9 is engaged in the notch 16 as a result of a translation addition of the rod 12. The ratchet 9 being escaped abruptly 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 primer of the starter to initiate him. In the figure, we see the projection d3 very important of the striker with respect to support 1 which is sufficient to provoke the initiation the pin 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.Striker 2 is returned to the initial position, that is to say in the rest position represented on the Figure 1, under the action of the spring 14. Indeed, the spring 14 is compressed when the rod 12 is drawn by the hydraulic cylinder. During his movement of relaxation, the spring 14 brings the rod 12 in the direction opposite of the arrow F and the heel 17 of the rod runs a ramp 21 fitted on the lever 4 as shown in FIG. 4. This lever 4 is pushed back and the ratchet 9 is disengaged from the notch 16 by pivoting around its axis 10 through the position intermediate shown in Figure 3 and comes occupy the initial position shown in Figure 1 returning to the notch 15. At the end of this movement, the pawl 9 rests 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 FIG. 5, the arm 11 is shown actuating the lever 4. It can be seen that the arm 11 is housed in a housing 22 practiced in the support 1. A end of the arm 11 is integral with the torsion bar 18 and the other end is engaged in the day 7a of the 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 FIG. 6, a section is shown longitudinal striker 2 which presents a first groove 23 perpendicular to the axis of the firing pin, a second groove 24 parallel to the axis of the firing pin and a connection 25 of these two grooves. In operation, the lever 4 is positioned in the first groove 23 and its deflection is limited by a pawn 26 opening in 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 cap 29 in the dwelling 27. Of course, the dwelling 27 and the 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 (Figure 6) in which one comes to position a tool that makes it possible to turn the firing pin of a quarter of turn. The rotation of the striker 2 makes the pawn move back 26 against the elastic thrust of the spring 28 and the lever 4 can then go from the first groove 23 to the second groove 24. The striker can be next extracted from his home. To replace the striker proceeds in the opposite way.

Claims (13)

  1. An artillery firing device for striking a detonator with a strike pin (2) mounted for translation relative to a support (1), the strike pin (2) being translatable by actuation means (4, 9, 11, 12, 18) for sequentially:
    moving the strike pin from a rest position to an armed position in which a strike-pin propelling device is armed,
    moving the strike pin from an armed position into a firing position in which it is forced by the propelling device against a detonator; and
    returning the strike pin to its rest position, the actuation means retaining the strike-pin there, firing device wherein the actuation means comprises:
    a lever (4) connected to the strike pin (2) and pivotable relative to the support (1),
    a pivotable pawl (9) for releasing the lever (4),
    a propelling device (11, 18) affixed to support (1) for driving the lever,
    drive means (12) acting on the pawl (9) and through the pawl for rotating the lever (4), arming the strike pin (2), and then releasing the lever (4),
    and wherein the drive means in rotation of the lever comprises a movable command rod (12) translatable relative to said support (1), said rod having recesses (15, 16) therein which cooperate with the pawl (9) on the one hand and on the other hand with a heel (17) cooperating with the lever (4).
  2. The firing device of claim 1, wherein a first recess (15) has a cylindrical profile in which the pawl (9) begins its rotation, followed by a second recess (16) in which the pawl (9) is received to permit the lever (4) to rotate about its shaft (6).
  3. The firing device of claim 2, wherein the second recess (16) is of a depth which corresponds to the percussion course of the strike pin.
  4. The firing device of claim 3, wherein the heel (17) is situated beyond the second recess (16) for cooperating with a slope (21) on the lever (4) for returning the lever to an initial position.
  5. The firing device of any of the claims 1 to 4, wherein the rod (12) is taken back to its initial position by a return spring.
  6. The firing device of any of the claims 1 to 5, wherein the rod (12) is driven in translation by an hydraulic jack.
  7. The firing mechanism of any of the claims 1 to 6, wherein the lever propelling means is constituted of an arm (11) of which one end is affixed on the lever (4) and the other end is affixed to a rotating bar (18), the other end of the arm and of the bar being affixed to the support (1).
  8. The firing device of any of the claims 1 to 7, wherein the lever (4) has one end affixed to the strike pin (2) and another end affixed to a shaft (6) of rotation regarding this lever (4) on a point located between its two ends.
  9. The firing device of claim 7, wherein the rotation bar (18) is initially prestressed.
  10. The firing device of any of the claims 1 to 9, wherein the lever (4) is embodied as a plate having apertures (7) that enables reducing its inertial momentum.
  11. The firing device of any of the claims 1 to 10, wherein the pawl (9) is coupled to the lever (4) through a spring.
  12. The firing device of any of the preceding claims, wherein the strike pin (2) comprises a first groove (23) perpendicular to the axis of the strike pin in which the end of the lever (4) is engaged and a piece (26) opened into it, to maintain the lever in this groove.
  13. Firing device of claim 12, wherein the strike pin (2) is provided with means allowing it to be extracted comprising at least two recesses (30) on its rear face to allow its prehension, and a second groove (24) parallel to the axis of the strike pin communicating with the first groove (23), the lever (4) running through the second groove (24) after the piece having disappeared (26) and the strike pin having rotated.
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

Publications (2)

Publication Number Publication Date
EP1067353A1 EP1067353A1 (en) 2001-01-10
EP1067353B1 true 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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE195269C (en) *
DE147526C (en) *
DE26430C (en) * FARBWERKE, vormals MEISTER, LUCIUS & BRÜNING in Höchst a. M Process for the preparation of oxyquinolines
US681109A (en) * 1901-04-06 1901-08-20 Vickers Sons & Maxim Ltd Percussion firing-gear for breech-loading ordnance.
FR352492A (en) * 1904-04-25 1905-08-11 Dite Vickers Sons And Maxim Limited Improvements to semi-automatic rapid-fire guns and others
DE220343C (en) * 1906-01-17
US985171A (en) * 1910-02-16 1911-02-28 Krupp Ag Pull mechanism for guns.
GB191122209A (en) * 1911-02-14 1912-02-14 William Edward Lake Improvements in Dress-stands or Models.
GB191419934A (en) * 1914-09-18 1915-09-20 Arthur Trevor Dawson Improvements in or relating to the Firing Mechanism of Breech Loading Ordnance.
US2245621A (en) 1939-05-22 1941-06-17 Summerbell William Firing mechanism
NL108457C (en) * 1960-05-10
US4207795A (en) * 1978-07-24 1980-06-17 The United States Of America As Represented By The Secretary Of The Army Cam firing mechanism
DE3608260C2 (en) * 1986-03-12 1996-05-09 Heckler & Koch Gmbh Rotating firing pin on a firearm
FR2671866B1 (en) * 1991-01-22 1993-03-26 Giat Ind Sa PERCUSSION FIRE DEVICE FOR MORTAR OR THE LIKE AND MORTAR COMPRISING SUCH A DEVICE.
JPH0784991B2 (en) * 1992-11-28 1995-09-13 防衛庁技術研究本部長 Percussion mechanism
FR2714161B1 (en) * 1993-12-21 1996-02-09 Giat Ind Sa Improved percussion device for a firearm.
FR2721389B1 (en) * 1994-06-17 1996-08-14 Giat Ind Sa Firing device for artillery by percussion of a choke, and artillery piece comprising such a device.
DE19804652A1 (en) * 1998-02-06 1999-08-12 Rheinmetall W & M Gmbh Breech for a large-caliber barrel weapon with a firing device
US6070512A (en) * 1998-08-14 2000-06-06 Rohrbaugh; Karl Handgun and method of operating handgun

Also Published As

Publication number Publication date
ES2206160T3 (en) 2004-05-16
US6450080B1 (en) 2002-09-17
DE60004740D1 (en) 2003-10-02
FR2796140A1 (en) 2001-01-12
FR2796140B1 (en) 2002-08-23
DE60004740T2 (en) 2004-03-25
EP1067353A1 (en) 2001-01-10

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