EP0016701B1 - Safety device for a pyrotechnic chain - Google Patents

Safety device for a pyrotechnic chain Download PDF

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Publication number
EP0016701B1
EP0016701B1 EP80400352A EP80400352A EP0016701B1 EP 0016701 B1 EP0016701 B1 EP 0016701B1 EP 80400352 A EP80400352 A EP 80400352A EP 80400352 A EP80400352 A EP 80400352A EP 0016701 B1 EP0016701 B1 EP 0016701B1
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EP
European Patent Office
Prior art keywords
projectile
safety device
rotor
axis
mobile member
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
Application number
EP80400352A
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German (de)
French (fr)
Other versions
EP0016701A1 (en
Inventor
Maurice René Petiteau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SORMEL SA
Original Assignee
SORMEL SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SORMEL SA filed Critical SORMEL SA
Priority to AT80400352T priority Critical patent/ATE2286T1/en
Publication of EP0016701A1 publication Critical patent/EP0016701A1/en
Application granted granted Critical
Publication of EP0016701B1 publication Critical patent/EP0016701B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/041—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • F42C15/188—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier

Definitions

  • the present invention relates to a safety device for a pyrotechnic chain.
  • a safety device housed in a recess of a projectile provided with an explosive charge, said device being intended for the pyrotechnic chain of the projectile and comprising a movable member, again called fire switch shutter, actuated by a clockwork mechanism with tilting regulator and mobile motor and able to occupy two different positions, for the first of which the ignition of said explosive charge is prevented, while for the second of said positions the ignition of this explosive charge is possible, a trigger lever blocking in said first position any movement of said member relative to the projectile, but the action of this lever being capable of being inhibited by said clock mechanism.
  • the present invention relates to a safety device for a pyrotechnic chain which can be miniaturized to the point that its largest dimension can be lowered below 10 mm.
  • the safety device housed in a recess of a rotating projectile provided with an explosive charge said device being intended for the pyrotechnic chain of the projectile and comprising a mobile member actuated by a mechanism of timepiece with tilting regulator and mobile motor and able to occupy two different positions, for the first of which the ignition of said explosive charge is prevented, while for the second of said positions the ignition of this explosive charge is possible, a lever trigger blocking in said first position any movement of said member relative to the projectile, but the action of this lever being capable of being inhibited by said clock mechanism, is remarkable in that said movable member is in the form of '' a housing mounted so as to be able to move in the recess of said projectile and enclosing said clock mechanism, its regulator, as well as said levi er of triggering and in that, in the first position, the axis of the tilting regulator coincides with the axis of rotation of said projectile.
  • a compact assembly is obtained, the thickness of which can be limited, since the movable member performs the switch functions while incorporating the control mechanism.
  • the organ itself and the whole becomes a protective element contributing to safety, while in known devices only a part of them acted as a switch.
  • the movable member is constituted by a rotor capable of turning around an axis parallel to the axis of rotation of the projectile.
  • the displacement of the rotor from the first to the second position may be due to the action of centrifugal force on the rotor whose center of gravity is eccentric, even if its geometric shape is of revolution, or to the action of at least one spring, or else the combined action of centrifugal force and a spring.
  • the movable member is constituted by a slide whose sliding direction is perpendicular to the axis of rotation of the projectile.
  • the displacement of the slide between its two positions may be due to the centrifugal force alone, to at least one spring or to a combination of the two.
  • the movable member may include a central body on either side of which are provided covers which are integral with it and which, in the case of a rotor, each carry a pivot, for mounting the rotor in said recess of the projectile , the clock mechanism being housed at least partly in the central body.
  • the trigger lever comprises at one of its ends a hook cooperating with a first notch of the periphery of the recess of the housing of the movable member in the projectile, to maintain this member in the first position.
  • This trigger lever may further include a locking finger inhibited in the first position but capable of cooperating with a second notch of the periphery of the recess of said housing, to maintain the movable member in its second position.
  • This safety device can comprise an inertia lock and this can be provided either for blocking simultaneously, or for simultaneously unlocking the regulator of the clock mechanism and the release lever.
  • the moving mechanism of the clock mechanism may have an eccentric mass; however, it can also be attached to a more eccentric arm.
  • the device according to the invention shown in FIGS. 1 to 4, consists of a rotor 1, provided with axial pivots of rotation 2 and 3 and comprising an intermediate cylindrical body 4, closed by two end covers 5 and 6, of which the pivots 2 and 3 are respectively attached.
  • the cover 5 is also cylindrical and covers the entire face opposite the intermediate body 4.
  • the cover 6 has the shape of a disk sector and covers only part of the face opposite the intermediate body 4.
  • the latter comprises an eccentric primer housing 7, capable of being brought by rotation of the rotor 1, in the axis of rotation 13 of the projectile which happens to be the axis of the pyrotechnic chain, said eccentric primer housing 7 not being covered by the cover 6.
  • the rotor 1 is mounted in a cylindrical housing 8, provided in the rotating projectile 9 for which it is intended.
  • This cylindrical housing 8 comprises bearings (not shown) in which the pivots 2 and 3 are mounted and which define therewith an axis of rotation 14 for the rotor, the axes 13 and 14 being parallel.
  • the rotor is normally prevented from rotating relative to the projectile 9 by the hook 10 of a trigger lever 11, engaged in a peripheral notch 12 of the housing 8.
  • the housing 8 is eccentric relative to the axis of rotation 13 of the projectile, but said axis 13 is located inside said housing 8.
  • the center of gravity of the rotor 1 is eccentric relative to the axis 14 .
  • the pinion 16 acts as an escapement mobile for a clockwork mechanism further comprising a motor mobile 17, a first intermediate mobile 18 and a second intermediate mobile 19.
  • the axes of the various pinions 16 to 19 are parallel to the axis 13.
  • Figure 4 illustrates the kinematic chain formed by these pinions 16 to 19
  • the motor mobile 17 comprises an eccentric mass 20, on which a force of inertia F 1 is exerted.
  • the axis of the moving motor 17 passes through the intermediate body 4 and comprises, at its end directed towards the cover 6, a half-moon section 21, cooperating with the end 22 of the trigger lever 11, opposite the hook 10.
  • the trigger lever 11 is mounted between the intermediate body 4 and the cover 6, so as to be able to pivot around an axis 23, parallel to axes 13 and 14.
  • the trigger lever 11 further comprises a locking finger 24, capable of cooperating with a locking notch 25, provided at the periphery of the housing 8, when the rotor 1 has been able to rotate relative to the projectile 9.
  • the position of the mobile motor 17 is adjusted so that, via the half-moon 21 and the end 22, the rotor 1 is locked in the housing 8 by the cooperation of the hook 10 and the notch 12 and so that the primer disposed in the housing 7 is outside the pyrotechnic chain.
  • the device according to the invention comprises an anchor lock 26 pressed by a spring 27 against the anchor 15, to prevent the latter from tilting about its axis.
  • the latch 26 moves outwards by unlocking the clock mechanism and the rotor.
  • the force Fi exerted on the eccentric mass 20 of the movable motor 17 starts the clock mechanism.
  • the rotation of the mobile motor 17 rotates the half-moon 21 (arrow F 3 ) and the trigger lever 11 rotates around the axis 23, in the direction of the arrow F 4 under the action of centrifugal force.
  • the hook 10 then leaves the notch 12, which unlocks the rotor 1 of the projectile 9.
  • the rotor 1 therefore rotates in its housing 8 around the axis 14 in the direction of the arrow F 5 .
  • the rotor 1 consists of a cylindrical intermediate body 4, closed at its two ends by covers 5 and 6 also cylindrical, carrying the pivots 2 and 3.
  • the housing d the primer 7 is located in the body 4 and opens into the cover 5.
  • the rotor 1 is rotatably mounted in the housing 8 provided in the rotating projectile 9 and is prevented from rotating by the hook 10 of the trigger lever 11, engaged in the peripheral notch 12.
  • an anchor 15 Between the intermediate cylindrical body 4 and the cover 6 are mounted, an anchor 15, a pinion 16, a motor mobile 17, a first intermediate mobile 18 and a second intermediate mobile 19.
  • the movable motor 17 is integral, by its half-moon end 21, with an eccentric arm 30 housed between the intermediate body 4 and the cover 5.
  • the trip lever 11 mounted pivoting about its axis 23.
  • the device according to FIGS. 5 to 9 comprises a sliding inertia lock 32 passing through the central body 4 and capable of either blocking the trigger lever 11 and the anchor 15 simultaneously, or of simultaneously releasing the trigger lever 11 and anchor 15.
  • the mobile motor 17 has been omitted, and an anchor lock 26 is pressed elastically for a spring 27, and an interlocked lock 32, blocking the trigger lever 11.
  • a toothed wheel 33 integral with the rotor 1 and concentric with it is engaged with a pinion 34 integral in rotation with the intermediate mobile 18 and concentric with it.
  • the clock mechanism begins to count and the hook retracts under the action of the force F 4 .
  • the action of the centrifugal force turns the rotor 1, whose center of gravity is eccentric relative to the axis 14, the pinion 34 rolling without sliding on the fixed toothed wheel 33.
  • a spiral spring 35 is provided to promote or cause the rotation of the rotor 1, depending on whether the center of gravity of the rotor is offset or not by relative to the axis 14.
  • a spring 36 is provided to assist in the tilting of the trigger lever 11.
  • FIGS. 12 to 15 illustrate embodiments of the device according to the invention, in which the movable member consists of a slide 40, housed in a radial recess 41 of the projectile 9.
  • the slide 40 carries a mechanism 15, 19, 21, 30 to 32 similar to that of the device in FIGS. 5 to 9.
  • the hook 10 is engaged in a notch 12 provided in the wall of the recess 41 in the projectile 9.
  • the eccentric arm 30 has been omitted and replaced by a spiral spring 42, serving as a motor for the mobile 17.
  • a spring 43 is provided for exerting a force, in the direction of the force F 5 , on the slide 40.
  • a spring 44 is provided to assist in the tilting of the trigger lever 11.
  • the device of FIG. 14 does not include a mobile motor 17, a half-moon 21, nor a release lever 30.
  • the mobile 18 is engaged with a pinion 45, itself engaged with a rack 46 secured to the wall of the housing 41.
  • the slide 40 moves under the action of the force F 5 so that the pinion 45 rolls on the rack 46.
  • housings 7 were intended to contain a primer for fire initiation, it goes without saying that these housings 7 could contain an intermediate charge between an initiation primer and explosives arranged outside the rotors or slides or else could be only a fire transmission channel between this primer and these explosives external to the movable member. In these cases, the movable member which would be interposed in the pyrotechnic chain instead of being the beginning, would act as a retractable screen.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Air Bags (AREA)
  • Emergency Lowering Means (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Lock And Its Accessories (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

The present invention relates to a safety device for a pyrotechnic assembly in a projectile, provided with an explosive charge, and comprising a mobile member actuated by a clockwork mechanism with pivoting regulator and with drive pinion and able to occupy two different positions, for the first of which the ignition of said explosive charge is prevented, while for the second of said positions the ignition of this explosive charge is possible, wherein said mobile member is housed in a recess in said projectile and encloses the clockwork mechanism, as well as a disengagement lever blocking in said first position any movement of said member with respect to the projectile but whose action may be inhibited by said clockwork mechanism and, in the first position, the axis of the pivoting regulator is merged with the axis of rotation of said projectile.

Description

La présente invention concerne un dispositif de sécurité pour chaîne pyrotechnique.The present invention relates to a safety device for a pyrotechnic chain.

On connaît déjà, notamment par le document US-A-2479851, un dispositif de sécurité logé dans un évidement d'un projectile pourvu d'une charge explosive, ledit dispositif étant destiné à la chaîne pyrotechnique du projectile et comportant un organe mobile, encore appelé volet interrupteur de feu, actionné par un mécanisme d'horlogerie à régulateur basculant et à mobile moteur et pouvant occuper deux positions différentes, pour la première desquelles la mise à feu de ladite charge explosive est empêchée, tandis que pour la seconde desdites positions la mise à feu de cette charge explosive est possible, un levier de déclenchement bloquant dans ladite première position tout mouvement dudit organe par rapport au projectile, mais l'action de ce levier étant susceptible d'être inhibée par ledit mécanisme d'horlogerie.Already known, in particular from document US-A-2479851, a safety device housed in a recess of a projectile provided with an explosive charge, said device being intended for the pyrotechnic chain of the projectile and comprising a movable member, again called fire switch shutter, actuated by a clockwork mechanism with tilting regulator and mobile motor and able to occupy two different positions, for the first of which the ignition of said explosive charge is prevented, while for the second of said positions the ignition of this explosive charge is possible, a trigger lever blocking in said first position any movement of said member relative to the projectile, but the action of this lever being capable of being inhibited by said clock mechanism.

Dans un tel dispositif de sécurité connu, l'organe mobile, le mécanisme d'horlogerie et le levier de déclenchement sont enfermés dans un boîtier qui, lui-même, est vissé dans ledit évidement du projectile. Il en résulte que les dimensions de ce dispositif de sécurité connu sont relativement importantes.In such a known safety device, the mobile member, the clock mechanism and the trigger lever are enclosed in a housing which itself is screwed into said recess of the projectile. As a result, the dimensions of this known safety device are relatively large.

Afin d'obtenir un dispositif de sécurité qui présente un faible encombrement de manière à pouvoir être monté dans des munitions de petit calibre, on a déjà songé à monter le régulateur du mécanisme d'horlogerie sur le volet lui-même. Un tel dispositif est décrit dans le document FR-A-2 370 259.In order to obtain a safety device which has a small footprint so that it can be mounted in small caliber ammunition, consideration has already been given to mounting the regulator of the clock mechanism on the flap itself. Such a device is described in document FR-A-2 370 259.

Cependant, quoiqu'une telle solution permette une réduction d'encombrement notable par rapport aux dispositifs mentionnés en premier lieu, un tel dispositif reste encore encombrant et ne peut pratiquement être monté dans des munitions dont le diamètre est inférieur à 30 mm.However, although such a solution allows a significant reduction in size compared to the devices mentioned in the first place, such a device still remains bulky and cannot practically be mounted in ammunition whose diameter is less than 30 mm.

La présente invention a pour objet un dispositif de sécurité pour chaîne pyrotechnique pouvant être miniaturisé au point que sa plus grande dimension peut être abaissée en dessous de 10 mm.The present invention relates to a safety device for a pyrotechnic chain which can be miniaturized to the point that its largest dimension can be lowered below 10 mm.

A cette fin, selon l'invention, le dispositif de sécurité logé dans un évidement d'un projectile tournant pourvu d'une charge explosive, ledit dispositif étant destiné à la chaîne pyrotechnique du projectile et comportant un organe mobile actionné par un mécanisme d'horlogerie à régulateur basculant et à mobile moteur et pouvant occuper deux positions différentes, pour la première desquelles la mise à feu de ladite charge explosive est empêchée, tandis que pour la seconde desdites positions la mise à feu de cette charge explosive est possible, un levier de déclenchement bloquant dans ladite première position tout mouvement dudit organe par rapport au projectile, mais l'action de ce levier étant susceptible d'être inhibée par ledit mécanisme d'horlogerie, est remarquable en ce que ledit organe mobile se présente sous la forme d'un boîtier monté de façon à pouvoir se déplacer dans l'évidement dudit projectile et enfermant ledit mécanisme d'horlogerie, son régulateur, ainsi que ledit levier de déclenchement et en ce que, dans la première position, l'axe du régulateur basculant est confondu avec l'axe de rotation dudit projectile.To this end, according to the invention, the safety device housed in a recess of a rotating projectile provided with an explosive charge, said device being intended for the pyrotechnic chain of the projectile and comprising a mobile member actuated by a mechanism of timepiece with tilting regulator and mobile motor and able to occupy two different positions, for the first of which the ignition of said explosive charge is prevented, while for the second of said positions the ignition of this explosive charge is possible, a lever trigger blocking in said first position any movement of said member relative to the projectile, but the action of this lever being capable of being inhibited by said clock mechanism, is remarkable in that said movable member is in the form of '' a housing mounted so as to be able to move in the recess of said projectile and enclosing said clock mechanism, its regulator, as well as said levi er of triggering and in that, in the first position, the axis of the tilting regulator coincides with the axis of rotation of said projectile.

Ainsi, grâce à l'invention, on obtient un ensemble compact dont l'épaisseur peut être limitée, puisque l'organe mobile effectue les fonctions d'interrupteur tout en incorporant le mécanisme de commande. De plus, l'organe lui-même et tout entier devient un élément de protection participant à la sécurité, alors que dans les dispositifs connus seule une partie de ceux-ci agissait comme interrupteur.Thus, thanks to the invention, a compact assembly is obtained, the thickness of which can be limited, since the movable member performs the switch functions while incorporating the control mechanism. In addition, the organ itself and the whole becomes a protective element contributing to safety, while in known devices only a part of them acted as a switch.

Dans un mode de réalisation avantageux, l'organe mobile est constitué par un rotor susceptible de tourner autour d'un axe parallèle à l'axe de rotation du projectile.In an advantageous embodiment, the movable member is constituted by a rotor capable of turning around an axis parallel to the axis of rotation of the projectile.

Le déplacement du rotor de la première à la seconde positions peut être dû à l'action de la force centrifuge sur le rotor dont le centre de gravité est excentré, même si sa forme géométrique est de révolution, ou bien à l'action d'au moins un ressort, ou bien encore à l'action combinée de la force centrifuge et d'un ressort.The displacement of the rotor from the first to the second position may be due to the action of centrifugal force on the rotor whose center of gravity is eccentric, even if its geometric shape is of revolution, or to the action of at least one spring, or else the combined action of centrifugal force and a spring.

Dans une variante de réalisation, l'organe mobile est constitué par un coulisseau dont la direction de coulissement est perpendiculaire à l'axe de rotation du projectile.In an alternative embodiment, the movable member is constituted by a slide whose sliding direction is perpendicular to the axis of rotation of the projectile.

Dans ce cas également, le déplacement du coulisseau entre ses deux positions peut être dû à la seule force centrifuge, à au moins un ressort ou à une combinaison des deux.In this case also, the displacement of the slide between its two positions may be due to the centrifugal force alone, to at least one spring or to a combination of the two.

L'organe mobile peut comporter un corps central de part et d'autre duquel sont prévus des couvercles qui en sont solidaires et qui, dans le cas d'un rotor, portent chacun un pivot, pour le montage du rotor dans ledit évidement du projectile, le mécanisme d'horlogerie étant logé au moins en partie dans le corps central.The movable member may include a central body on either side of which are provided covers which are integral with it and which, in the case of a rotor, each carry a pivot, for mounting the rotor in said recess of the projectile , the clock mechanism being housed at least partly in the central body.

Avantageusement, le levier de déclenchement comporte à l'une de ses extrémités un crochet coopérant avec une première encoche de la périphérie de l'évidement du logement de l'organe mobile dans le projectile, pour maintenir cet organe dans la première position. Ce levier de déclenchement peut comporter de plus un doigt de verrouillage inhibé dans la première position mais susceptible de coopérer avec une seconde encoche de la périphérie de l'évidement dudit logement, pour maintenir l'organe mobile dans sa seconde position.Advantageously, the trigger lever comprises at one of its ends a hook cooperating with a first notch of the periphery of the recess of the housing of the movable member in the projectile, to maintain this member in the first position. This trigger lever may further include a locking finger inhibited in the first position but capable of cooperating with a second notch of the periphery of the recess of said housing, to maintain the movable member in its second position.

Ce dispositif de sécurité selon l'invention peut comporter un verrou à inertie et celui-ci peut être prévu soit pour bloquer simultanément, soit pour débloquer simultanément le régulateur du mécanisme d'horlogerie et le levier de déclenchement.This safety device according to the invention can comprise an inertia lock and this can be provided either for blocking simultaneously, or for simultaneously unlocking the regulator of the clock mechanism and the release lever.

Le mobile moteur du mécanisme d'horlogerie peut comporter une masse excentrée; toutefois, il peut également être solidaire d'un bras plus excentré.The moving mechanism of the clock mechanism may have an eccentric mass; however, it can also be attached to a more eccentric arm.

Le dispositif de sécurité selon l'invention peut:

  • - soit servir d'interrupteur seulement; dans ce cas, le feu passe à travers un trou est relayé par un élément pyrotechnique placé dans ledittrou;
  • - soit servir de transporteur d'amore primaire ou électrique; dans ce cas, la connexion de mise à feu s'établit en fin de course de l'organe mobile, ou par percussion, l'amorce transportée se mettant alors dans l'alignement d'un percuteur.
The safety device according to the invention can:
  • - either act as a switch only; in this case, the fire passes through a hole is relayed by a pyrotechnic element placed in said hole;
  • - either serve as a primary or electric amore transporter; in this case, the firing connection is established at the end of the travel of the movable member, or by percussion, the transported primer then being put in alignment with a striker.

Les figures du dessin annexé feront bien comprendre comment l'invention peut être réalisée.

  • La figure 1 est une vue extérieure, grandeur nature, d'une première forme de réalisation du dispositif de sécurité selon l'invention, sous la forme d'un rotor.
  • La figure 2 est une vue schématique en coupe développée agrandie du dispositif de la figure 1.
  • La figure 3 est une coupe transversale du dispositif au niveau de la ligne de coupe III-III de la figure 2.
  • La figure 4 illustre la cinématique du mécanisme du dispositif des figures 1 à 3.
  • La figure 5 est une vue extérieure, grandeur nature, d'une seconde forme de réalisation du dispositif de sécurité selon l'invention, également sous la forme d'un rotor.
  • La figure 6 est une vue schématique en coupe développée agrandie du dispositif de la figure 5.
  • La figure 7 est une coupe transversale selon la ligne VII-VII de la figure 6.
  • La figure 8 illustre la cinématique du mécanisme du dispositif des figures 5 à 7.
  • La figure 9 montre en détail le verrou à inertie du dispositif des figures 5 à 8.
  • Les figures 10 et 11 montrent, en coupe schématique, une troisième et une quatrième formes de réalisation du dispositif de sécurité selon l'invention, également sous la forme d'un rotor.
  • Les figures 12 à 15 illustrent, en coupe schematique, des variantes de réalisation du dispositif de sécurité selon l'invention, se présentant sous la forme d'un coulisseau.
The figures of the appended drawing will make it clear how the invention can be implemented.
  • Figure 1 is a full-size exterior view of a first embodiment of the safety device according to the invention, in the form of a rotor.
  • FIG. 2 is a diagrammatic view in enlarged developed section of the device of FIG. 1.
  • FIG. 3 is a cross section of the device at the level of the section line III-III of FIG. 2.
  • FIG. 4 illustrates the kinematics of the mechanism of the device of FIGS. 1 to 3.
  • FIG. 5 is a full-size exterior view of a second embodiment of the safety device according to the invention, also in the form of a rotor.
  • FIG. 6 is a diagrammatic view in enlarged developed section of the device of FIG. 5.
  • FIG. 7 is a cross section along the line VII-VII of FIG. 6.
  • FIG. 8 illustrates the kinematics of the mechanism of the device of FIGS. 5 to 7.
  • FIG. 9 shows in detail the inertia lock of the device of FIGS. 5 to 8.
  • Figures 10 and 11 show, in schematic section, a third and a fourth embodiment of the safety device according to the invention, also in the form of a rotor.
  • Figures 12 to 15 illustrate, in schematic section, alternative embodiments of the safety device according to the invention, being in the form of a slide.

Sur ces figures, des éléments semblables sont indiqués par des références identiques.In these figures, similar elements are indicated by identical references.

Le dispositif selon l'invention, montré par les figures 1 à 4, est constitué par un rotor 1, muni de pivots axiaux de rotation 2 et 3 et comportant un corps cylindrique intermédiaire 4, fermé par deux couvercles d'extrémité 5 et 6, dont sont solidaires respectivement les pivots 2 et 3. Le couvercle 5 est également cylindrique et recouvre la totalité de la face en regard du coprs intermédiaire 4. En revanche, le couvercle 6 présente la forme d'un secteur de disque et ne recouvre qu'une partie de la face en regard du corps intermédiaire 4. Celui-ci comporte un logement d'amorce excentré 7, susceptible d'être amené par rotation du rotor 1, dans l'axe de rotation 13 du projectile qui se trouve être l'axe de la chaine pyrotechnique, ledit logement d'amorce excentré 7 n'étant pas recouvert par le couvercle 6. Le rotor 1 est monté dans un logement cylindrique 8, prévu dans le projectile tournant 9 auquel il est destiné. Ce logement cylindrique 8 comporte des paliers (non représentés) dans lesquels sont montés les pivots 2 et 3 et qui définissent avec ceux-ci un axe de rotation 14 pour le rotor, les axes 13 et 14 étant parallèles. Toutefois, le rotor est normalement empêché de tourner par rapport au projectile 9 par le crochet 10 d'un levier de déclenchement 11, engagé dans une encoche périphérique 12 du logement 8.The device according to the invention, shown in FIGS. 1 to 4, consists of a rotor 1, provided with axial pivots of rotation 2 and 3 and comprising an intermediate cylindrical body 4, closed by two end covers 5 and 6, of which the pivots 2 and 3 are respectively attached. The cover 5 is also cylindrical and covers the entire face opposite the intermediate body 4. On the other hand, the cover 6 has the shape of a disk sector and covers only part of the face opposite the intermediate body 4. The latter comprises an eccentric primer housing 7, capable of being brought by rotation of the rotor 1, in the axis of rotation 13 of the projectile which happens to be the axis of the pyrotechnic chain, said eccentric primer housing 7 not being covered by the cover 6. The rotor 1 is mounted in a cylindrical housing 8, provided in the rotating projectile 9 for which it is intended. This cylindrical housing 8 comprises bearings (not shown) in which the pivots 2 and 3 are mounted and which define therewith an axis of rotation 14 for the rotor, the axes 13 and 14 being parallel. However, the rotor is normally prevented from rotating relative to the projectile 9 by the hook 10 of a trigger lever 11, engaged in a peripheral notch 12 of the housing 8.

Le logement 8 est excentré par rapport à l'axe de rotation 13 du projectile, mais ledit axe 13 se trouve à l'intérieur dudit logement 8. De plus, le centre de gravité du rotor 1 est excentré par rapport à l'axe 14.The housing 8 is eccentric relative to the axis of rotation 13 of the projectile, but said axis 13 is located inside said housing 8. In addition, the center of gravity of the rotor 1 is eccentric relative to the axis 14 .

Entre le corps cylindrique intermédiaire 4 et le couvercle 5 sont montés, de façon à pouvoir tourner, une ancre 15 et un pignon 16, en prise avec cette ancre 15, dont l'axe de rotation est confondu avec l'axe 13 de rotation du projectile. Le pignon 16 joue le rôle de mobile d'échappement pour un mécanisme d'horlogerie comprenant de plus un mobile moteur 17, un premier mobile intermédiaire 18 et un second mobile intermédiaire 19. Les axes des différents pignons 16 à 19 sont parallèles à l'axe 13. La figure 4 illustre la chaîne cinématique formée par ces pignons 16 à 19Between the intermediate cylindrical body 4 and the cover 5 are mounted, so as to be able to rotate, an anchor 15 and a pinion 16, engaged with this anchor 15, the axis of rotation of which coincides with the axis 13 of rotation of the projectile. The pinion 16 acts as an escapement mobile for a clockwork mechanism further comprising a motor mobile 17, a first intermediate mobile 18 and a second intermediate mobile 19. The axes of the various pinions 16 to 19 are parallel to the axis 13. Figure 4 illustrates the kinematic chain formed by these pinions 16 to 19

Le mobile moteur 17 comporte une masse excentrée 20, sur laquelle s'exerce une force d'inertie F1. lorsque le rotor 1 est entraîné en rotation autour de l'axe 13, du fait qu'il est lié en rotation par le crochet 10 avec le projectile 9. L'axe du mobile moteur 17 traverse le corps intermédiaire 4 et comporte, à son extrémité dirigée vers le couvercle 6, une section en demi-lune 21, coopérant avec l'extrémité 22 du levier de déclenchement 11, opposée au crochet 10. Le levier de déclenchement 11 est monté entre le corps intermédiaire 4 et le couvercle 6, de façon à pouvoir pivoter autour d'un axe 23, parallèle aux axes 13 et 14.The motor mobile 17 comprises an eccentric mass 20, on which a force of inertia F 1 is exerted. when the rotor 1 is rotated about the axis 13, owing to the fact that it is linked in rotation by the hook 10 with the projectile 9. The axis of the moving motor 17 passes through the intermediate body 4 and comprises, at its end directed towards the cover 6, a half-moon section 21, cooperating with the end 22 of the trigger lever 11, opposite the hook 10. The trigger lever 11 is mounted between the intermediate body 4 and the cover 6, so as to be able to pivot around an axis 23, parallel to axes 13 and 14.

Le levier de déclenchement 11 comporte de plus un doigt de verrouillage 24, susceptible de coopérer avec une encoche de verrouillage 25, prévue à la périphérie du logement 8, lorsque le rotor 1 a pu tourner par rapport au projectile 9.The trigger lever 11 further comprises a locking finger 24, capable of cooperating with a locking notch 25, provided at the periphery of the housing 8, when the rotor 1 has been able to rotate relative to the projectile 9.

Au repos, la position du mobile moteur 17 est réglé pour que, par l'intermédiaire de la demi-lune 21 et de l'extrémité 22, le rotor 1 soit verrouillé dans le logement 8 par la coopération du crochet 10 et de l'encoche 12 et pour que l'amorce disposée dans le logement 7 se trouve en dehors de la chaîne pyrotechnique.At rest, the position of the mobile motor 17 is adjusted so that, via the half-moon 21 and the end 22, the rotor 1 is locked in the housing 8 by the cooperation of the hook 10 and the notch 12 and so that the primer disposed in the housing 7 is outside the pyrotechnic chain.

Par ailleurs, le dispositif selon l'invention comporte un verrou d'ancre 26 pressé par un ressort 27 contre l'ancre 15, pour empêcher celle-ci de basculer autour de son axe.Furthermore, the device according to the invention comprises an anchor lock 26 pressed by a spring 27 against the anchor 15, to prevent the latter from tilting about its axis.

Par suite, lorsque le rotor 1 selon l'invention est monté dans un projectile tournant 9 de la façon décrite et que ce projectile décrit sa trajectoire en tournant autour de son axe 13, le verrou d'ancre 26, qui bloque la chaîne 15 à 19 et donc indirectement le rotor 1 dans son logement 8, est soumis à une force d'inertie F2. Tant que cette force F2 est inférieure à la force exercée par le ressort 27 en direction de l'ancre 15, le verrou 26 reste en place, bloquant le mécanisme d'horlogerie et le rotor.As a result, when the rotor 1 according to the invention is mounted in a rotating projectile 9 in the manner described and this projectile describes its trajectory by turning around its axis 13, the anchor lock 26, which blocks the chain 15 at 19 and therefore indirectly the rotor 1 in its housing 8, is subjected to an inertial force F 2 . As long as this force F 2 is less than the force exerted by the spring 27 in the direction of the anchor 15, the latch 26 remains in place, blocking the clock mechanism and the rotor.

Dès que la force d'inertie F2 est supérieure à la force du ressort 27, le verrou 26 se déplace vers l'extérieur en déverrouillant le mécanisme d'horlogerie et le rotor. Par suite, la force Fi s'exerçant sur la masse excentrée 20 du mobile moteur 17 met en marche le mécanisme d'horlogerie. Au bout d'un certain temps, déterminé par ce mécanisme, la rotation du mobile moteur 17 fait tourner la demi-lune 21 (flèche F3) et le levier de déclenchement 11 tourne autour de l'axe 23, dans le sens de la flèche F4 sous l'action de la force centrifuge. Le crochet 10 sort alors de l'encoche 12, ce qui déverrouille le rotor 1 du projectile 9. Le rotor 1 tourne donc dans son logement 8 autour de l'axe 14 dans la direction de la flèche F5. Lorsque le doigt de verrouillage 24 passe en regard de l'encoche 25, il pénètre dans celle-ci sous l'action de la force centrifuge (flèche F4). Le rotor 1 est de nouveau verrouillé par rapport au projectile 9, mais alors l'amorce logée dans le logement 7 se trouve interposée de la chaîne pyrotechnique.As soon as the inertial force F 2 is greater than the force of the spring 27, the latch 26 moves outwards by unlocking the clock mechanism and the rotor. As a result, the force Fi exerted on the eccentric mass 20 of the movable motor 17 starts the clock mechanism. After a certain time, determined by this mechanism, the rotation of the mobile motor 17 rotates the half-moon 21 (arrow F 3 ) and the trigger lever 11 rotates around the axis 23, in the direction of the arrow F 4 under the action of centrifugal force. The hook 10 then leaves the notch 12, which unlocks the rotor 1 of the projectile 9. The rotor 1 therefore rotates in its housing 8 around the axis 14 in the direction of the arrow F 5 . When the locking finger 24 passes opposite the notch 25, it enters the latter under the action of centrifugal force (arrow F 4 ). The rotor 1 is again locked relative to the projectile 9, but then the primer housed in the housing 7 is interposed in the pyrotechnic chain.

Dans la variante de réalisation montrée par les figures 5 à 9, le rotor 1 se compose d'un corps intermédiaire cylindrique 4, obturé à ses deux extrémités par des couvercles 5 et 6 également cylindriques, portant les pivots 2 et 3. Le logement d'amorce 7 se trouve dans le corps 4 et débouche dans le couvercle 5.In the alternative embodiment shown in Figures 5 to 9, the rotor 1 consists of a cylindrical intermediate body 4, closed at its two ends by covers 5 and 6 also cylindrical, carrying the pivots 2 and 3. The housing d the primer 7 is located in the body 4 and opens into the cover 5.

Le rotor 1 est monté rotatif dans le logement 8 prévu dans le projectile tournant 9 et est empêché de tourner par le crochet 10 du levier de déclenchement 11, engagé dans l'encoche périphérique 12.The rotor 1 is rotatably mounted in the housing 8 provided in the rotating projectile 9 and is prevented from rotating by the hook 10 of the trigger lever 11, engaged in the peripheral notch 12.

Entre le corps cylindrique intermédiaire 4 et le couvercle 6 sont montés, une ancre 15, un pignon 16, un mobile moteur 17, un premier mobile intermédiaire 18 et un second mobile intermédiaire 19. Au lieu de comporter une masse excentrée comme dans le cas des figures 1 à 4, le mobile moteur 17 est solidaire, par son extrémité en demi-lune 21, d'un bras excentré 30 logé entrele corps intermédiaire 4 et le couvercle 5. De même, entre le corps 4 et le couvercle 5 est logé le levier de déclechement 11, monté pivotant autour de son axe 23. Une lame de ressort centrifuge de sécurité 31, solidaire d'un projectile 9 et coopérant avec le doigt de verrouillage 24, presse le crochet 10 dans l'encoche 12.Between the intermediate cylindrical body 4 and the cover 6 are mounted, an anchor 15, a pinion 16, a motor mobile 17, a first intermediate mobile 18 and a second intermediate mobile 19. Instead of having an eccentric mass as in the case of Figures 1 to 4, the movable motor 17 is integral, by its half-moon end 21, with an eccentric arm 30 housed between the intermediate body 4 and the cover 5. Similarly, between the body 4 and the cover 5 is housed the trip lever 11, mounted pivoting about its axis 23. A centrifugal safety leaf spring 31, integral with a projectile 9 and cooperating with the locking finger 24, presses the hook 10 into the notch 12.

Par ailleurs, le dispositif selon les figures 5 à 9 comporte un verrou coulissant à inertie 32 traversant le corps central 4 et susceptible soit de bloquer simultanément le levier de déclenchement 11 et l'ancre 15, soit de libérer simultanément le levier de déclenchement 11 et l'ancre 15.Furthermore, the device according to FIGS. 5 to 9 comprises a sliding inertia lock 32 passing through the central body 4 and capable of either blocking the trigger lever 11 and the anchor 15 simultaneously, or of simultaneously releasing the trigger lever 11 and anchor 15.

Ainsi, lorsque le rotor 1, dont le centre de gravité est excentré par rapport à l'axe 14, est monté dans un projectile tournant 9 et que ce projectile décrit sa trajectoire en tournant autour de son axe 13, le verrou à inertie 32 qui bloque directement la chaîne 15 à 19 et le rotor 1 dans son sogement 8, est soumis à une force d'inertie F2. Tant que cette force F2 est insuffisante pour faire coulisser complètement le verrou 32, celui-ci bloque le mécanisme d'horlogerie et le rotor.Thus, when the rotor 1, whose center of gravity is eccentric with respect to the axis 14, is mounted in a rotating projectile 9 and this projectile describes its trajectory by turning around its axis 13, the inertia lock 32 which directly blocks the chain 15 to 19 and the rotor 1 in its base 8, is subjected to an inertial force F 2 . As long as this force F 2 is insufficient to make the bolt 32 slide completely, the latter blocks the clock mechanism and the rotor.

Dès que la force d'inertie F2 est suffisamment importante pour que le verrou se déplace en coulissement, le mécanisme d'horlogerie et le rotor sont déverrouillés. Par suite, la force F, s'exerçant sur le bras excentré 30 du mobile moteur 17 met en marche le mécanisme d'horlogerie. Au bout d'un certain temps, déterminé par ce mécanisme, la rotation du mobile moteur 17 fait tourner la demi-lune 21 et le levier de déclenchement 11, après effacement du ressort centrifuge 31, tourne autour de l'axe 23, dans le sens de la flèche F4 sous l'action de la force centrifuge. Le crochet 10 sort alors de l'encoche 12 et le rotor 1 peut tourner autour de l'axe 14 jusqu'à ce que le doigt de verrouillage 24 pénètre dans l'encoche 25.As soon as the inertial force F 2 is large enough for the bolt to slide, the clock mechanism and the rotor are unlocked. As a result, the force F, exerted on the eccentric arm 30 of the movable motor 17 starts the clock mechanism. After a certain time, determined by this mechanism, the rotation of the mobile motor 17 rotates the half-moon 21 and the trigger lever 11, after erasing the centrifugal spring 31, rotates around the axis 23, in the direction of arrow F 4 under the action of centrifugal force. The hook 10 then leaves the notch 12 and the rotor 1 can rotate around the axis 14 until the locking finger 24 enters the notch 25.

Dans la variante de réalisation de la figure 10, le mobile moteur 17 a été supprimé, et on a prévu un verrou d'ancre 26 pressé élastiquement pour un ressort 27, et un verrou à intertie 32, bloquant le levier de déclenchement 11. Par ailleurs, une roue dentée 33 solidaire du rotor 1 et concentrique à celui-ci est en prise avec un pignon 34 solidaire en rotation du mobile intermédiaire 18 et concentrique à celui-ci. Ainsi, lorsque sous l'action de la force centrifuge les verrous 26 et 32 ont respectivement débloqué l'ancre 15 et le levier de déclenchement 11, le mécanisme d'horlogerie se met à compter et le crochet se rétracte sous l'action de la force F4. L'action de la force centrifuge fait tourner le rotor 1, dont le centre de gravité est excentré par rapport à l'axe 14, le pignon 34 roulant sans glissement sur la roue dentée fixe 33. La variante de réalisation de la figure 11 est proche du dispositif de la figure 10. Cependant, le verrou 26 a été supprimé, mais en revanche, un ressort spiral 35 est prévu pour favoriser ou provoquer la rotation du rotor 1, suivant que le centre de gravité du rotor est excentré ou non par rapport à l'axe 14. De plus, on prévoit un ressort 36 pour aider au basculement du levier de déclenchement 11.In the alternative embodiment of FIG. 10, the mobile motor 17 has been omitted, and an anchor lock 26 is pressed elastically for a spring 27, and an interlocked lock 32, blocking the trigger lever 11. By elsewhere, a toothed wheel 33 integral with the rotor 1 and concentric with it is engaged with a pinion 34 integral in rotation with the intermediate mobile 18 and concentric with it. Thus, when under the action of the centrifugal force the latches 26 and 32 have respectively released the anchor 15 and the trigger lever 11, the clock mechanism begins to count and the hook retracts under the action of the force F 4 . The action of the centrifugal force turns the rotor 1, whose center of gravity is eccentric relative to the axis 14, the pinion 34 rolling without sliding on the fixed toothed wheel 33. The alternative embodiment of FIG. 11 is close to the device of FIG. 10. However, the lock 26 has been removed, but on the other hand, a spiral spring 35 is provided to promote or cause the rotation of the rotor 1, depending on whether the center of gravity of the rotor is offset or not by relative to the axis 14. In addition, a spring 36 is provided to assist in the tilting of the trigger lever 11.

Les figures 12 à 15 illustrent des modes de réalisation du dispositif selon l'invention, dans lesquels l'organe mobile est constitué par un coulisseau 40, logé dans un évidement radial 41 du projectile 9. Le coulisseau 40 porte un mécanisme 15, 19, 21, 30 à 32 semblable à celui du dispositif des figures 5 à 9.FIGS. 12 to 15 illustrate embodiments of the device according to the invention, in which the movable member consists of a slide 40, housed in a radial recess 41 of the projectile 9. The slide 40 carries a mechanism 15, 19, 21, 30 to 32 similar to that of the device in FIGS. 5 to 9.

De plus, il comporte un verrou d'ancre 26, 27. Le crochet 10 est engagé dans une encoche 12 prévue dans le paroi de l'évidement 41 dans le projectile 9.In addition, it includes an anchor lock 26, 27. The hook 10 is engaged in a notch 12 provided in the wall of the recess 41 in the projectile 9.

Lorsque la force centrifuge atteint une valeur suffisante, les verrous 26 et 32 sont effacés et, de la façon décrite ci-dessus, le crochet 10 sort de l'encoche 12. Sous l'action de la force centrifuge, le coulisseau 40 est soumis à une force F5 et se déplace jusqu'à ce que l'ancre où le trou d'amorce 7 vienne prendre sa place dans la chaïne pyrotechnique.When the centrifugal force reaches a sufficient value, the latches 26 and 32 are erased and, as described above, the hook 10 comes out of the notch 12. Under the action of the centrifugal force, the slide 40 is subjected at a force F 5 and moves until the anchor where the primer hole 7 comes to take its place in the pyrotechnic chain.

Dans la variante de réalisation de la figure 13, le bras excentré 30 a été supprimé et remplacé par un ressort spiral 42, servant de moteur au mobile 17. De plus, un ressort 43 est prévu pour exercé une force, dans le sens de la force F5, sur le coulisseau 40. Enfin, un ressort 44 est prévu pour aider au basculement du levier de déclenchement 11.In the alternative embodiment of FIG. 13, the eccentric arm 30 has been omitted and replaced by a spiral spring 42, serving as a motor for the mobile 17. In addition, a spring 43 is provided for exerting a force, in the direction of the force F 5 , on the slide 40. Finally, a spring 44 is provided to assist in the tilting of the trigger lever 11.

Par rapport au dispositif de la figure 12, le dispositif de la figure 14 ne comporte pas de mobile moteur 17, de demi-lune 21, ni de levier de déclenchement 30. En revanche, le mobile 18 est en prise avec un pignon 45, lui-même en prise avec une crémaillère 46 solidaire de la paroi du logement 41. Ainsi, pour passer de sa position de repos à sa position active, le coulisseau 40 se déplace sous l'action de la force F5 de sorte que le pignon 45 roule sur la crémaillère 46.Compared to the device of FIG. 12, the device of FIG. 14 does not include a mobile motor 17, a half-moon 21, nor a release lever 30. On the other hand, the mobile 18 is engaged with a pinion 45, itself engaged with a rack 46 secured to the wall of the housing 41. Thus, to pass from its rest position to its active position, the slide 40 moves under the action of the force F 5 so that the pinion 45 rolls on the rack 46.

Dans le dispositif de la figure 15, on retrouve le pignon 45 et la crémaillère 46. De plus, on a prévu des ressorts 43 et 44 comme dans le dispositif de la figure 13.In the device of FIG. 15, we find the pinion 45 and the rack 46. In addition, springs 43 and 44 have been provided as in the device of FIG. 13.

Quoique dans les exemples décrits ci-dessus, on ait mentionné que les logements 7 étaient destinés à contenir une amorce d'initation de feu, il va de soi que ces logements 7 pourraient contenir une charge intermédiaire entre une amorce d'initiation et des explosifs disposés en dehors des rotors ou coulisseaux ou bien encore pourraient n'être qu'un canal de transmission de feu entre cette amorce et ces explosifs extérieurs à l'organe mobile. Dans ces cas, l'organe mobile qui serait interposé dans la chaîne pyrotechnique au lieu d'en être le commencement, ferait office d'écran escamotable.Although in the examples described above, it was mentioned that the housings 7 were intended to contain a primer for fire initiation, it goes without saying that these housings 7 could contain an intermediate charge between an initiation primer and explosives arranged outside the rotors or slides or else could be only a fire transmission channel between this primer and these explosives external to the movable member. In these cases, the movable member which would be interposed in the pyrotechnic chain instead of being the beginning, would act as a retractable screen.

Claims (10)

1. Safety device housed in a recess (8) of a rotating projectile (9) provided with an explosive charge, said device being intended for the pyrotechnic chain of the projectile and comprising a mobile member (1) actuated by a clockwork mechanism with pivoting regulator (15) and with driving mobile (17) and able to occupy two different positions, for the first of which the firing of said explosive charge is prevented, whilst for the second of said positions firing of this explosive charge is possible, a triggering lever (11) blocking in said first position any movement of said mobile member (1) with respect to the projectile (9), but the action of this lever being capable of being inhibited by said clockwork mechanism, characterised in that said mobile member (1) is in the form of a casing mounted so as to able to move in the recess (8) in said projectile (9) and enclosing the clockwork mechanism, as well as the triggering lever and in that, in the first position, the axis (13) of the pivoting regulator (15) is merged with the axis of rotation of said projectile (9).
2. Safety device according to Claim 1, characterised in that said mobile member (1) is in the form of a rotor.
3. Safety device according to Claim 1, characterised in that said mobile member (1) is in the form of a slide block.
4. Safety device according to Claim 2, characterised in that the centre of gravity of the rotor is eccentric with respect to its axis of rotation (14).
5. Safety device according to Claim 3, characterised in that the direction of slide of said slide block is perpendicular to the axis of rotation of the projectile (9).
6. Safety device according to one of Claims 1 to 5, characterised in that the displacement of the mobile member (1) form its first to its second position is due at least partially to the action of elastic means (43).
7. Safety device according to any one of Claims 1 to 6, characterised in that said rotor (1) comprises a central body (4) on either side of which are provided covers (5, 6) which are fast therewith and in that the clockwork mechanism (15 to 20) is housed at least partially in said central body.
8. Safety device according to any one of Claims 1 to 7, characterised in that the triggering lever (11) comprises at one of its ends a hook (10) cooperating with a first notch (12) in the peripheriy of the recess housing said mobile member, to maintain the latter in the first position.
9. Safety device according to Claim 8, characterised in that the triggering lever (11) further comprises a locking finger (24) inhibited in the first position of the mobile member but cooperating with a second notch (25) in the periphery of the recess (8) housing said mobile member (1) to maintain the latter in its second position.
10. Device according to one of Claims 1 to 9, characterised in that it comprises an inertia locking means (32) either for simultaneously blocking or simultaneously unblocking the regulator of the clockwork mechanism and the triggering lever.
EP80400352A 1979-03-19 1980-03-17 Safety device for a pyrotechnic chain Expired EP0016701B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400352T ATE2286T1 (en) 1979-03-19 1980-03-17 SAFETY DEVICE FOR PYROTECHNIC ELEMENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7906883 1979-03-19
FR7906883A FR2452082B1 (en) 1979-03-19 1979-03-19 SECURITY DEVICE FOR PYROTECHNIC CHAIN

Publications (2)

Publication Number Publication Date
EP0016701A1 EP0016701A1 (en) 1980-10-01
EP0016701B1 true EP0016701B1 (en) 1983-01-19

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Application Number Title Priority Date Filing Date
EP80400352A Expired EP0016701B1 (en) 1979-03-19 1980-03-17 Safety device for a pyrotechnic chain

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US (1) US4320705A (en)
EP (1) EP0016701B1 (en)
AT (1) ATE2286T1 (en)
AU (1) AU534242B2 (en)
CA (1) CA1139990A (en)
DE (1) DE3061661D1 (en)
ES (1) ES490301A0 (en)
FR (1) FR2452082B1 (en)

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Also Published As

Publication number Publication date
CA1139990A (en) 1983-01-25
FR2452082A1 (en) 1980-10-17
FR2452082B1 (en) 1986-07-25
ATE2286T1 (en) 1983-02-15
EP0016701A1 (en) 1980-10-01
ES8103370A1 (en) 1981-02-16
AU534242B2 (en) 1984-01-12
AU5635480A (en) 1980-09-25
US4320705A (en) 1982-03-23
ES490301A0 (en) 1981-02-16
DE3061661D1 (en) 1983-02-24

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