EP0207827B1 - Controlled percussion device for an automatic gun - Google Patents

Controlled percussion device for an automatic gun Download PDF

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Publication number
EP0207827B1
EP0207827B1 EP86401122A EP86401122A EP0207827B1 EP 0207827 B1 EP0207827 B1 EP 0207827B1 EP 86401122 A EP86401122 A EP 86401122A EP 86401122 A EP86401122 A EP 86401122A EP 0207827 B1 EP0207827 B1 EP 0207827B1
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EP
European Patent Office
Prior art keywords
pin
firing device
counterpin
breech head
striker
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Expired
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EP86401122A
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German (de)
French (fr)
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EP0207827A1 (en
Inventor
Joel Marcon
Jacques Durant
Georges Simon
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Direction General pour lArmement DGA
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Direction General pour lArmement DGA
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Publication of EP0207827A1 publication Critical patent/EP0207827A1/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
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/18—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms for multibarrel guns or multiple guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F1/00—Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons; Harpoon guns
    • F41F1/08—Multibarrel guns, e.g. twin guns
    • F41F1/10—Revolving-cannon guns, i.e. multibarrel guns with the barrels and their respective breeches mounted on a rotor; Breech mechanisms therefor

Definitions

  • the present invention relates to a percussion device for an automatic weapon with a tube of the type with internal energy source (for example of the gas borrowing type) or with external energy source.
  • US-A-4,494,439 describes a device adapted to a rotary drum weapon, of the Gatling type, making it possible to act on different strikers without the use of springs.
  • Patent US-A-2,512,014 describes a system suitable for an automatic weapon with inertia locking, making it possible to prohibit percussion if the chamber is not properly closed.
  • the object of the present invention is to propose a percussion device overcoming the drawbacks of the devices according to the state of the art.
  • the invention consists in securing the striker to the operating part during the locking phase, then to the movable head during the start phase of the blow.
  • the device offers a very high level of security because the percussion is controlled, that is to say carried out at a very precise instant determined during the design of the mechanism.
  • Another advantage is due to the fact that the impact energy is very high since the complete inertia of the moving parts of the weapon participates in the percussion, the striker being linked to the operating part.
  • the percussion device according to the invention is completely passive when the bolt is in the rear position because there is no stored energy. This is not always the case for known devices using springs, which can be detrimental for safety in the event that the spring retaining stop would break.
  • the percussion device for an automatic weapon with a tube comprises: an operating part moving alternately and parallel to the axis of the tube, a movable head intended to come to bear on the tube, carried by the operating part and slide relative to the latter following a first so-called locking stroke ensuring the attachment of the movable head to the tube and at the end of which the percussion takes place, then a second so-called damping stroke, and a striker sliding in the movable head, such a device being part of the state of the art, characterized in that it comprises on the one hand a first connecting means ensuring the joining between the striker and the operating part during the locking stroke and on the other hand a second means connecting ensuring the connection between the striker and the movable head during the course of damping, said connecting means acting consecutively.
  • FIG. 1 represents a percussion device comprising an operating part 1 constituted by a tubular part of XX 'coinciding with the barrel of the weapon surmounting a prismatic part on which are fixed four guide rollers 2 bearing on a beam not shown secured to the frame and the barrel of the weapon.
  • This operating part comprises a bore 3 of axis YY 'perpendicular to the axis XX' in which is housed an axis 4 carrying a roller 5 and a shoe 6 circulating along a groove of a rotary drum not shown, thus ensuring the reciprocating movement of the mobile assembly to allow the introduction of the ammunition into the barrel of the weapon.
  • the axis 4 is extended by a cylindrical part 4a passing through the tubular part of the operating part 1.
  • the movable head 7 is constituted by a tubular part 7a sliding in the tubular part of the operating part and by a cylinder head 7b coming to take support on the barrel of the weapon (not shown) to close the propulsion chamber when the ammunition is inserted.
  • This movable head 7 further comprises two diametrically opposite ramps 8A and 8B through which the cylindrical part 4a of the axis 4 passes.
  • This ramp consists of a helical part A - B (see FIG. 2) and a straight part B - C.
  • the helical part A - B is used to ensure the locking of the movable head on the barrel of the weapon.
  • the maneuvering piece advances towards the barrel of the weapon, the movable head abuts on the latter, then the axis 4 following the ramp A - B rotates the head which locks at the level of the rear surface 9 of the teeth 10 on a shape complementary to the barrel of the weapon.
  • the rectilinear part B - C of the ramp is a damping stroke used, in this particular example, in the event of a long-term fire, that is to say a delay in initiating the propellant charge or no start of the blow .
  • the rotary drum providing alternative guidance for the mobile assembly is driven by an external energy motor of the electric motor type.
  • this type of percussion device can be used by a conventional weapon with internal energy source, the stroke A - B serving to ensure the locking of the movable head on the barrel of the weapon and the stroke B - C being used to cushion the end of travel of the mobile assembly.
  • the device according to the invention further comprises a striker 12, sliding along a bore 13 produced in the movable head 7, in which a counter striker 14 can be moved linked to the operating part 1 by the axis 4.
  • the striker and counter-striker are held by a pin 15, the ends of which are linked to the striker and sliding in an oblong groove 16 produced in the counter striker 14.
  • the connecting device (FIG. 4) of the movable head 7 with the striker 12 and of the striker with the counter-striker 14 comprises two crutches 17 articulated on the striker along axes 18 orthogonal to the axis XX '.
  • the pins have a first cylindrical surface 19 capable of sliding inside the surface 13 of the movable head when said crutches are in the retracted position, and a second surface 20 that can slide on the lateral surface 21 of the counter-striker when the crutches link the striker to the moving part.
  • a flat 22 is formed at the end of the crutches so as to secure the striker-movable head block, by bearing on the surface 23 of a notch 24 produced on the movable head.
  • a second flat 25 cooperates with a shoulder 26 of the counter-striker 14 to ensure the connection between striker and striker. It should be noted that all the surfaces 22, 23, 25 and 26 are inclined relative to the axis XX 'so as to facilitate the movement of the crutches.
  • the crutches 17 tilt so as to secure the striker 12 to the movable head while the striker is detached from the counter-striker (see FIG. 3), the movable head continues its relative movement (stroke B - C) relative to the operating part 1.
  • the percussion takes place at a position determined very precisely at the design of the weapon and invariable during its entire lifetime, unlike spring devices, the latter tending to lose their characteristic after many uses .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Electrophonic Musical Instruments (AREA)

Description

La présente invention concerne un dispositif de percussion pour arme automatique à tube du type à source d'énergie interne (par exemple du type à emprunt de gaz) ou à source d'énergie externe.The present invention relates to a percussion device for an automatic weapon with a tube of the type with internal energy source (for example of the gas borrowing type) or with external energy source.

Les dispositifs à percussion selon l'état de la technique sont de trois types:

  • - les mécanismes à ressort, tels que ceux utilisés dans les armes du type GATLING, sont constitués par un percuteur coulissant dans une culasse et mu par un ressort comprimé pendant la phase d'avance de la culasse vers l'avant de l'arme, maintenu en position par une butée puis libéré par escamotage de ladite butée après verrouillage de la culasse sur le tube de l'arme.
There are three types of percussion devices according to the state of the art:
  • - spring mechanisms, such as those used in GATLING type weapons, are constituted by a striker sliding in a breech and driven by a compressed spring during the advance phase of the breech towards the front of the weapon, held in position by a stop and then released by retraction of said stop after locking the breech on the barrel of the weapon.

Ces mécanismes présentent pour inconvénient majeur d'une part d'avoir une vitesse du percuteur, donc une énergie de percussion liée à la raideur du ressort qui peut varier au cours de la vie de l'arme, et d'autre part, puisque le percuteur n'est pas lié à la culasse après la percussion et pendant la course d'amortissement, cela peut entraîner un retour violent du percuteur vers l'arrière, retour dû aux pressions importantes développées sur l'amorce lors de la combustion de la charge propulsive:

  • - les mécanismes à inertie sont constitués par un percuteur de masse déterminée, coulissamt dans une culasse sous l'effet des forces d'inertie. Lors du choc et du verrouillage de la culasse sur le tube de l'arme, le percuteur est projeté vers la munition et l'initie. Ce type de dispositif présente des inconvénients similaires à ceux du mécanisme décrit précédement. En effet, l'énergie de percussion peut varier en fonction des frottements (état de surface, lubrification, encrassement) du percuteur sur la culasse. Le percuteur n'est pas solidaire de cette dernière pendant les phases de verrouillage et de percussion.
These mechanisms have the major drawback on the one hand of having a striker speed, therefore a percussion energy linked to the stiffness of the spring which can vary during the life of the weapon, and on the other hand, since the striker is not linked to the bolt after percussion and during the damping stroke, this can lead to a violent return of the striker to the rear, return due to the significant pressures developed on the primer during the combustion of the charge propellant:
  • - the inertia mechanisms are constituted by a striker of determined mass, sliding in a cylinder head under the effect of inertial forces. During the impact and the locking of the breech on the barrel of the weapon, the striker is projected towards the ammunition and initiates. This type of device has drawbacks similar to those of the mechanism described above. In fact, the impact energy can vary depending on the friction (surface condition, lubrication, fouling) of the striker on the breech. The striker is not integral with the latter during the locking and percussion phases.

Le brevet US-A-4 494 439 décrit un dispositif adapté à une arme à tambour rotatif, de type Gatling, permettant d'agir sur différents percuteurs sans utilisation de ressorts.US-A-4,494,439 describes a device adapted to a rotary drum weapon, of the Gatling type, making it possible to act on different strikers without the use of springs.

Le brevet US-A-2 512 014 décrit un système adapte à une arme automatique à verrouillage par inertie, permettant d'interdire la percussion si la chambre n'est pas correctement fermée.Patent US-A-2,512,014 describes a system suitable for an automatic weapon with inertia locking, making it possible to prohibit percussion if the chamber is not properly closed.

Dans ces deux brevets, on ne retrouve pas la structure particulière mise en oeuvre dans l'invention, c'est-à-dire une pièce de manoeuvre équipée d'une tête mobile venant en appui sur le tube de l'arme.In these two patents, we do not find the particular structure implemented in the invention, that is to say an operating part equipped with a movable head bearing on the barrel of the weapon.

Le but de la présente invention est de proposer un dispositif de percussion palliant les inconvénients des dispositifs selon l'état de la technique. Pour ce faire, l'invention consiste à solidariser le percuteur à la pièce de manoeuvre pendant la phase de verrouillage, puis à la tête mobile pendant la phase de départ du coup.The object of the present invention is to propose a percussion device overcoming the drawbacks of the devices according to the state of the art. To do this, the invention consists in securing the striker to the operating part during the locking phase, then to the movable head during the start phase of the blow.

Ainsi, le dispositif offre un très grand niveau de sécurité car la percussion est contrôlée c'est-à-dire effectuée à un instant très précis déterminé lors de la conception du mécanisme.Thus, the device offers a very high level of security because the percussion is controlled, that is to say carried out at a very precise instant determined during the design of the mechanism.

Un autre avantage tient au fait que l'énergie de percussion est très élevée car l'inertie complète des pièces en mouvement de l'arme participe à la percution, le percuteur étant lié à la pièce de manoeuvre.Another advantage is due to the fact that the impact energy is very high since the complete inertia of the moving parts of the weapon participates in the percussion, the striker being linked to the operating part.

D'autre part, le dispositif de percussion selon l'invention est complétement passif lorsque la culasse est en position arrière car il n'y a pas d'énergie emmagasinnée. Cela n'est pas toujours le cas pour les dispositifs connus mettant en oeuvre des ressorts, ce qui peut être préjudiciable pour la sécurité dans le cas ou la butée de retenue du ressort viendrait à se rompre.On the other hand, the percussion device according to the invention is completely passive when the bolt is in the rear position because there is no stored energy. This is not always the case for known devices using springs, which can be detrimental for safety in the event that the spring retaining stop would break.

Le dispositif de percussion pour arme automatique à tube comprend: une pièce de manoeuvre se déplaçant alternativement et parallèlement à l'axe du tube, une tête mobile destinée à venir en appui sur le tube, portée par la pièce de manoeuvre et coulissat par rapport à cette dernière suivant une première course dite de verrouillage assurant la solidarisation de la tête mobile sur le tube et au bout de laquelle a lieu la percussion, puis une deuxième course dite d'amortissement, et un percuteur coulissant dans la tête mobile, un tel dispositif faisant partie de l'état de la technique, caractérisé en ce qu'il comprend d'une part un premier moyen de liaison assurant la solidarisation entre le percuteur et la pièce de manoeuvre pendant la course de verrouillage et d'autre part un second moyen de liaison assurant la solidarisation entre le percuteur et la tête mobile pendant la cour se d'amortissement, lesdits moyens de liaison agissant consécutivement.The percussion device for an automatic weapon with a tube comprises: an operating part moving alternately and parallel to the axis of the tube, a movable head intended to come to bear on the tube, carried by the operating part and slide relative to the latter following a first so-called locking stroke ensuring the attachment of the movable head to the tube and at the end of which the percussion takes place, then a second so-called damping stroke, and a striker sliding in the movable head, such a device being part of the state of the art, characterized in that it comprises on the one hand a first connecting means ensuring the joining between the striker and the operating part during the locking stroke and on the other hand a second means connecting ensuring the connection between the striker and the movable head during the course of damping, said connecting means acting consecutively.

Selon d'autres caractéristiques particulières:

  • - il comprend un contre percuteur solidaire de la pièce de manoeuvre pouvant coulisser par rapport au percuteur et coopérant avec lesdits moyens de liaison,
  • - la course du contre-percuteur par rapport au percuteur est sensiblement égale à la course d'amortissement,
  • - le premier moyen de liaison est constitué par au moins ume béquille articulée sur le percuteur suivant un axe orthogonal à celui du tube ayant une surface d'appui avec une surface interne correspondante de la tête mobile, coopérant avec un épaulement pratiqué sur le contre-percuteur et s'escamotant dans un logement disposé sur la tête mobile pour rompre ladite liaison,
  • - le second moyen de liaison est constitué par au moins une béquille articulée sur le percuteur suivant un axe orthogonal à celui du tube de canon, ayant une surface d'appui avec une surface externe correspondante du contre-percuteur, coopérant avec une encoche disposée sur la surface interne de la tête mobile et s'escamotant dans un logement disposé sur le contre-percuteur pour rompre ladite liaison,
  • - l'épaulment pratiqué sur le contre-percuteur possède une dépouille participant à la pénétration de la béquille dans l'encoche disposée sur la surface interne de la tête mobile,
  • - l'encoche pratiquée sur la surface interne de la tête mobile possède une dépouille participant à la pénétration de la béquille dans l'épaulement du contre-percuteur,
  • - le logement disposé dans la tête mobile est utilisé comme encoche pour le verrouillage du percuteur avec la tête mobile,
  • - le logment disposé dans le contre-percuteur est utilisé comme épaulement pour le verrouillage du percuteur avec la tête mobile,
  • - la béquille est utilisée pour le premier et le second moyen de liaison.
According to other particular characteristics:
  • - it includes a striker against secured to the operating part which can slide relative to the striker and cooperating with said connecting means,
  • the stroke of the counter-striker with respect to the striker is substantially equal to the damping stroke,
  • - The first connecting means is constituted by at least one crutch articulated on the striker along an axis orthogonal to that of the tube having a bearing surface with a corresponding internal surface of the movable head, cooperating with a shoulder formed on the counter striker and retracting into a housing disposed on the movable head to break said connection,
  • - The second connection means is constituted by at least one crutch articulated on the striker along an axis orthogonal to that of the barrel tube, having a bearing surface with a corresponding external surface of the counter-striker, cooperating with a notch arranged on the internal surface of the moving head and retracting into a housing disposed on the counter-striker to break said connection,
  • - the shoulder made on the counter-striker has a draft participating in the penetration of the crutch into the notch arranged on the internal surface of the movable head,
  • - the notch formed on the internal surface of the movable head has a draft participating in the penetration of the crutch into the shoulder of the counter-striker,
  • - the housing arranged in the movable head is used as a notch for locking the striker with the movable head,
  • - the housing arranged in the striker is used as a shoulder for locking the striker with the movable head,
  • - the stand is used for the first and second connecting means.

L'invention sera mieux comprise après lecture de la description qui va suivre d'un mode particulier de réalisation fait en regard des dessins annexés dans lesquels:

  • - la figure 1 représente une coupe longitudinale d'un mécanisme de percussion selon l'invention avec le percuteur rétracté,
  • - la figure 2 représente une coupe selon AA de la figure 1,
  • - la figure 3 représente une coupe selon AA de la figure 1 après percussion,
  • - la figure 4 représente un détail du dispositif de verrouillage.
The invention will be better understood after reading the description which follows of a particular embodiment made with reference to the appended drawings in which:
  • FIG. 1 represents a longitudinal section of a percussion mechanism according to the invention with the striker retracted,
  • FIG. 2 represents a section along AA of FIG. 1,
  • FIG. 3 represents a section along AA of FIG. 1 after percussion,
  • - Figure 4 shows a detail of the locking device.

La figure 1 représente un dispositif de percussion comprenant une pièce de manoeuvre 1 constituée par une partie tubulaire d'une XX' confondu avec le tube de l'arme surmontant une partie prismatique sur laquelle sont fixées quatre roulettes de guidage 2 prenant appui sur une poutrelle non représentée solidaire du bati et du tube de l'arme. Cette pièce de manoeuvre comporte un alésage 3 d'axe YY' perpendiculaire à l'axe XX' dans lequel est logé un axe 4 portant un galet 5 et un patin 6 circulant le long d'une rainure d'un tambour rotatif non représenté, assurant ainsi le mouvement alternatif de l'ensemble mobile pour permettre l'introduction de la munition dans le tube de l'arme. L'axe 4 se prolonge par une partie cylindrique 4a traversant la partie tubulaire de la pièce de manoeuvre 1. La tête mobile 7 est constituée par une partie tubulaire 7a coulissant dans la partie tubulaire de la pièce de manoeuvre et par une culasse 7b venant prendre appui sur le tube de l'arme (non représenté) pour fermer la chambre de propulsion lorsque la munition est introduite. Cette tête mobile 7 comprend de plus deux rampes 8A et 8B diamétralement opposées que traverse la partie cylindrique 4a de l'axe 4. Cette rampe est constituée d'une partie hélicoïdale A - B (voir figure 2) et d'une partie rectiligne B - C. La partie hélicoïdale A - B est utilisée pour assurer le verrouillage de la tête mobile sur le tube de l'arme. En effet, lors du fonctiomement, la pièce de manoeuvre avance vers le tube de l'arme, la tête mobile vient buter sur ce dernier, puis l'axe 4 en suivant la rampe A - B fait pivoter la tête qui se verrouille au niveau de la surface arrière 9 des adents 10 sur une forme complémentaire du tube de l'arme.FIG. 1 represents a percussion device comprising an operating part 1 constituted by a tubular part of XX 'coinciding with the barrel of the weapon surmounting a prismatic part on which are fixed four guide rollers 2 bearing on a beam not shown secured to the frame and the barrel of the weapon. This operating part comprises a bore 3 of axis YY 'perpendicular to the axis XX' in which is housed an axis 4 carrying a roller 5 and a shoe 6 circulating along a groove of a rotary drum not shown, thus ensuring the reciprocating movement of the mobile assembly to allow the introduction of the ammunition into the barrel of the weapon. The axis 4 is extended by a cylindrical part 4a passing through the tubular part of the operating part 1. The movable head 7 is constituted by a tubular part 7a sliding in the tubular part of the operating part and by a cylinder head 7b coming to take support on the barrel of the weapon (not shown) to close the propulsion chamber when the ammunition is inserted. This movable head 7 further comprises two diametrically opposite ramps 8A and 8B through which the cylindrical part 4a of the axis 4 passes. This ramp consists of a helical part A - B (see FIG. 2) and a straight part B - C. The helical part A - B is used to ensure the locking of the movable head on the barrel of the weapon. Indeed, during operation, the maneuvering piece advances towards the barrel of the weapon, the movable head abuts on the latter, then the axis 4 following the ramp A - B rotates the head which locks at the level of the rear surface 9 of the teeth 10 on a shape complementary to the barrel of the weapon.

La partie rectiligne B - C de la rampe est une course d'amortissement utilisée, dans cet exemple particulier, en cas de long-feu, c'est à dire de retard à l'amorçage de la charge propulsive ou de non départ du coup. En effet, le tambour rotatif assurant le guidage alternatif de l'ensemble mobile est entraîné par un moteur à énergie externe du type moteur électrique. Avec ce type d'arme, l'information sur le départ ou non départ du coup n'est pas fournie automatiquement à la logique de l'automatisme, contrairement à ce qui se passe dans une arme classique à source d'énergie interne du type à prise de gaz par exemple. En conséquence, une munition présentant un long feu peut être extraite et éjectée de la chambre de tir avant son fonctionement normal et par là même fonctionner, c'est à dire brûler, dans les parties peu ou pas protégées de l'arme et du système porteur mettant ainsi en jeu la sécurité du tireur.The rectilinear part B - C of the ramp is a damping stroke used, in this particular example, in the event of a long-term fire, that is to say a delay in initiating the propellant charge or no start of the blow . In fact, the rotary drum providing alternative guidance for the mobile assembly is driven by an external energy motor of the electric motor type. With this type of weapon, the information on the start or not start of the shot is not automatically supplied to the logic of the automation, unlike what happens in a conventional weapon with internal energy source of the type gas outlet for example. Consequently, a munition with a long fire can be extracted and ejected from the firing chamber before its normal operation and thereby operate, i.e. burn, in the poorly or not protected parts of the weapon and the system wearer thus putting the shooter's security at stake.

Pour ce faire, il a été prévu d'équiper ce type d'arme d'un dispositif dit de "sécurité long-feu" tel que celui décrit dans le brevet FR-A-2 372 409 (dmande de brevet FR-7 635 639). Ce dispositif comprend des moyens sensibles à l'information "départ du coup" constitués par des capteurs déterminant la position longitudinale de l'arme par rapport au berceau sur lequel elle est disposée. Ainsi en cas de long-feu, l'arme n'est pas sollicitée vers l'arrière, les capteurs transmettent l'ordre de blocage de l'ensemble mobile de façon à interdire l'ouverture de la chambre de l'arme. Les moyens de blocage sont constitués par des verrous 11 (schématisés à la figure 3) venant prendre appui à l'arrière de la pièce de manoeuvre 1. Ces verrous sont montés élastiquement par rapport au bâti de l'arme de façon à permettré un recul amorti de l'ensemble mobile 7 jusqu'à son arrêt complet, l'énergie absorbée par le lien élastique étant alors égale à l'énergie cinétique de l'ensemble du mécanisme de l'arme.To do this, provision has been made to equip this type of weapon with a so-called "long-fire safety" device such as that described in patent FR-A-2,372,409 (patent application FR-7,635 639). This device includes means sensitive to the information "start of the shot" constituted by sensors determining the longitudinal position of the weapon relative to the cradle on which it is arranged. Thus in the event of a long fire, the weapon is not biased towards the rear, the sensors transmit the blocking order of the mobile assembly so as to prevent the opening of the chamber of the weapon. The locking means consist of locks 11 (shown diagrammatically in FIG. 3) coming to bear at the rear of the operating part 1. These locks are mounted resiliently relative to the frame of the weapon so as to allow recoil damping of the movable assembly 7 until it comes to a complete stop, the energy absorbed by the elastic link then being equal to the kinetic energy of the entire mechanism of the weapon.

Cette course de recul est due au fait que le galet continue à parcourir la rampe du tambour. La tête mobile 7 étant toujours verrouillée sur le tube de l'arme, il était nécessaire de prévoir une course relative des deux organes tête mobile - pièce de manoeuvre (7, 1) (course B - C).This recoil stroke is due to the fact that the roller continues to travel the ramp of the drum. The movable head 7 being always locked on the barrel of the weapon, it was necessary to provide a relative stroke of the two movable head members - operating part (7, 1) (stroke B - C).

Il est à noter, que ce type de dispositif de percussion peut être utilisé par une arme classique à source d'énergie interne, la course A - B servant à assurer le verrouillage de la tête mobile sur le tube de l'arme et la course B - C étant utilisée pour amortir la fin de course de l'ensemble mobile.It should be noted that this type of percussion device can be used by a conventional weapon with internal energy source, the stroke A - B serving to ensure the locking of the movable head on the barrel of the weapon and the stroke B - C being used to cushion the end of travel of the mobile assembly.

Le dispositif selon l'invention comporte de plus un percuteur 12, coulissant le long d'un alésage 13 réalisé dans la tête mobile 7, dans lequel peut se déplacer un contre percuteur 14 lié à la pièce de manoeuvre 1 par l'axe 4. Le percuteur et le contre-percuteur sont maintenus par une goupille 15 dont les extrémités sont liées au percuteur et coulissant dans une rainure oblongue 16 réalisée dans le contre percuteur 14.The device according to the invention further comprises a striker 12, sliding along a bore 13 produced in the movable head 7, in which a counter striker 14 can be moved linked to the operating part 1 by the axis 4. The striker and counter-striker are held by a pin 15, the ends of which are linked to the striker and sliding in an oblong groove 16 produced in the counter striker 14.

Le dispositif de liaison (figure 4) de la tête mobile 7 avec le percuteur 12 et du percuteur avec le contre-percuteur 14 comprend deux béquilles 17 articulées sur le percuteur selon des axes 18 orthogonaux à l'axe XX'. Les béguilles comportent une première surface cylindrique 19 susceptible de coulisser à l'intérieur de la surface 13 de la tête mobile lorsque les dites béquilles sont en position rétractées, et une seconde surface 20 pouvant glisser sur la surface latérale 21 du contre-percuteur lorsque les béquilles lient le percuteur à la pièce mobile. Un méplat 22 est pratiqué à l'extrémité des béquilles de façon à assurer le blocage percuteur - tête mobile, en prenant appui sur la surface 23 d'une encoche 24 réalisée sur la tête mobile. De la même façon, un second méplat 25 coopère avec un épaulement 26 du contre-percuteur 14 pour assurer la liaison percuteur - contre percuteur. Il est à noter que toutes les surfaces 22, 23, 25 et 26 sont inclinées par rapport à l'axe XX' de façon à faciliter le déplacement des béquilles.The connecting device (FIG. 4) of the movable head 7 with the striker 12 and of the striker with the counter-striker 14 comprises two crutches 17 articulated on the striker along axes 18 orthogonal to the axis XX '. The pins have a first cylindrical surface 19 capable of sliding inside the surface 13 of the movable head when said crutches are in the retracted position, and a second surface 20 that can slide on the lateral surface 21 of the counter-striker when the crutches link the striker to the moving part. A flat 22 is formed at the end of the crutches so as to secure the striker-movable head block, by bearing on the surface 23 of a notch 24 produced on the movable head. In the same way, a second flat 25 cooperates with a shoulder 26 of the counter-striker 14 to ensure the connection between striker and striker. It should be noted that all the surfaces 22, 23, 25 and 26 are inclined relative to the axis XX 'so as to facilitate the movement of the crutches.

Le dispositif fonctionne de la façon suivante:

  • le galet 5 parcourt la rainure du tambour rotatif de façon à introduire une munition dans la chambre de l'arme, la face avant de la tête mobile vient en appui sur l'arrière du tube de l'age et le verrouillage s'effectue grâce aux rampes 8A et 8B. Pendant cette course A - B de verrouillage, le percuteur 12 est lié au contre-percuteur 14 par les béquilles 17 (voir figure 2) et avance à la vitesse de la pièce de manoeuvre 1.
The device works as follows:
  • the roller 5 traverses the groove of the rotary drum so as to introduce a munition into the chamber of the weapon, the front face of the movable head comes to bear on the rear of the age tube and the locking is effected by at ramps 8A and 8B. During this locking stroke A - B, the striker 12 is linked to the counter-striker 14 by the crutches 17 (see FIG. 2) and advances at the speed of the operating part 1.

A la fin de la course de verrouillage la percussion de la munition a lieu, les béquilles 17 basculent de façon à solidariser le percuteur 12 à la tête mobile alors que le percuteur est désolidarisé du contre-percuteur (voir figure 3), la tête mobile continue son déplacement relatif (course B - C) par rapport à la pièce de manoeuvre 1.At the end of the locking stroke the percussion of the ammunition takes place, the crutches 17 tilt so as to secure the striker 12 to the movable head while the striker is detached from the counter-striker (see FIG. 3), the movable head continues its relative movement (stroke B - C) relative to the operating part 1.

Lors du retour du dispositif vers l'arrière de l'arme, les mêmes évènements se produisent dans l'ordre inverse.When the device returns to the rear of the weapon, the same events occur in reverse order.

On voit ainsi que le percuteur est toujours solidaire d'une autre pièce, ce qui offre une grande sécurité d'utilisation comparativement aux dispositifs de percussion selon l'état de la technique.It can thus be seen that the striker is always secured to another part, which offers great safety in use compared to percussion devices according to the state of the art.

D'autre part, la percussion a lieu à une position déterminée très précisément à la conception de l'arme et invariable lors de toute sa durée de vie, contrairement aux dispositifs à ressorts, ces derniers ayant tendance à perdre leur caractéristique après de nombreuses utilisations.On the other hand, the percussion takes place at a position determined very precisely at the design of the weapon and invariable during its entire lifetime, unlike spring devices, the latter tending to lose their characteristic after many uses .

Claims (10)

1. Percussion firing device for automatic weapon with tube including one control member in alternating motion parallel to the tube centerline axis, one breech head designed to press against the breech, carried by the said control member and sliding with respect to it in a locking course of travel ensuring that the breech head is secured to the breech, and at the end of which the firing takes place, then a second damping course of travel, and a pin sliding in the breech head, wherein the firing system includes a first linking means to secure the said pin to the said control member during the said locking course and a second linking means to connect the said pin to the said breech head during the damping course, with the said linking means operating consecutively.
2. The firing device of claim 1, wherein it includes a counterpin, integral with the control member, which can slide with respect to the pin and cooperate with the said linking means.
3. The firing device of claim 2, wherein the course of the said counterpin with respect to the said pin is roughly equal to the said damping course.
4. The firing device of claim 2 or 3, wherein the first linking means consists of at least one crutch pivoting on the said pin about an axis orthogonal to that of the tube centerline, having a surface bearing on the corresponding inner surface of the said breech head, cooperating with a shoulder in the counterpin and retracting into a lodging in the breech head to break the link.
5. The firing device of any one claim 1 to 4, wherein the second linking means consists of at least one crutch pivoting on the said pin about an axis orthogonal to that of the tube centerline, having a surface bearing on a corresponding external surface on the said counterpin, cooperating with a notch arranged on the inner surface of the breech head and retracting into a lodging in the counterpin to break the said link.
6. The firing device of any one claim 1 to 5, wherein the shoulder in the counterpin has a taper participating in the penetration of the said crutch into the said notch in the inner surface of the said breech head.
7. The firing device of any one claim 1 to 6, wherein the said notch in the inner surface of the breech head has a taper participating in the penetration of the said crutch in the shoulder of the said counterpin.
8. The firing device of any one claim from 1 to 7, wherein the said lodging in the said breech head is used as a notch for locking the pin with the breech head.
9. The firing device of any one claim 1 to 8, wherein the lodging in the counterpin is used as a shoulder for locking the said pin with the said breech head.
10. The firing device of any one claim 1 to 0, wherein the said crutch is used for the said first and second linking means.
EP86401122A 1985-06-07 1986-05-27 Controlled percussion device for an automatic gun Expired EP0207827B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8508601 1985-06-07
FR8508601A FR2583155B1 (en) 1985-06-07 1985-06-07 CONTROLLED PERCUSSION DEVICE FOR AUTOMATIC WEAPON

Publications (2)

Publication Number Publication Date
EP0207827A1 EP0207827A1 (en) 1987-01-07
EP0207827B1 true EP0207827B1 (en) 1989-07-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401122A Expired EP0207827B1 (en) 1985-06-07 1986-05-27 Controlled percussion device for an automatic gun

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US (1) US4704945A (en)
EP (1) EP0207827B1 (en)
DE (1) DE3664376D1 (en)
FR (1) FR2583155B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930399A (en) * 1989-01-09 1990-06-05 Trevor Jr John High volume automatic and semi-automatic firearm
US5663522A (en) * 1993-08-20 1997-09-02 Kuehl; Robert Arnold M60 semi-automatic conversion
US6634129B1 (en) 2000-08-22 2003-10-21 Richard N. Freeman, Jr. Modified bolt assembly and firing mechanism for an MG 34 Mauser rifle
AT510039B1 (en) * 2010-09-24 2012-01-15 Steyr Mannlicher Holding Gmbh ATTACHMENT MECHANISM FOR A FIREARM

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US884065A (en) * 1907-04-27 1908-04-07 Karl August Braeuning Hand-firearm.
US2251304A (en) * 1939-07-13 1941-08-05 Summerbell William Breech closure for guns
CH233877A (en) * 1942-11-13 1944-08-31 Oerlikon Buehrle Ag Automatic mass-locked firearm.
CH432298A (en) * 1965-03-10 1967-03-15 Oerlikon Buehrle Holding Ag Automatic firearm
US3620124A (en) * 1970-01-12 1971-11-16 Us Army Firing mechanism for reversible automatic cannon
FR2372409A1 (en) * 1976-11-26 1978-06-23 France Etat IMPROVEMENTS IN AUTOMATIC WEAPONS WITH EXTERNAL ENGINE
US4494439A (en) * 1983-04-25 1985-01-22 General Electric Company Firing mechanism for high rate of fire revolving battery gun

Also Published As

Publication number Publication date
US4704945A (en) 1987-11-10
FR2583155A1 (en) 1986-12-12
DE3664376D1 (en) 1989-08-17
EP0207827A1 (en) 1987-01-07
FR2583155B1 (en) 1989-06-09

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