EP0376826B1 - Safety device for a releasable airborne charge - Google Patents

Safety device for a releasable airborne charge Download PDF

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Publication number
EP0376826B1
EP0376826B1 EP89403625A EP89403625A EP0376826B1 EP 0376826 B1 EP0376826 B1 EP 0376826B1 EP 89403625 A EP89403625 A EP 89403625A EP 89403625 A EP89403625 A EP 89403625A EP 0376826 B1 EP0376826 B1 EP 0376826B1
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EP
European Patent Office
Prior art keywords
cable
pylon
safety device
load
feeler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP89403625A
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German (de)
French (fr)
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EP0376826A1 (en
Inventor
Jean Boucard
Jean Deliance
André Winaver
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Thomson Brandt Armements SA
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Thomson Brandt Armements SA
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Publication of EP0376826A1 publication Critical patent/EP0376826A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C14/00Mechanical fuzes characterised by the ammunition class or type
    • F42C14/06Mechanical fuzes characterised by the ammunition class or type for fall bombs

Definitions

  • the object of the invention is a beam safety device as defined in claims 1 to 13.
  • This cable 1 is separated into two parts 1 ′ and 1 ⁇ connected together by an element 10 which can slide inside a tube 11 to one end 12
  • This flexible or semi-rigid cable passes inside a probe 13 placed in a support or threaded plug 14 fixed relative to an outer ring 26 which prevents any movement of the support 14 and located on the periphery of the load A; a hole 27, allowing the passage of the probe 13 inside the support 14, is located opposite the hole of the conduit 9.
  • the probe 13 is, for example, a hollow cylinder, where, at its periphery, a vertical groove 15 allowing the insertion of the cable 1 inside the hollow cylinder.
  • the position of the ball 21 on the cable 1 ensures the translational movement of the probe under the effect of a certain traction and the latter, when placed under the aircraft, prevents, by striking the beam of the aircraft , the course of the traction of the cable, that is to say the triggering of the arming means.
  • FIG. 4 represents the load A provided with the device according to the invention after stretching of the "SL" and after its release from the aircraft.
  • the ball 21 positioned on the cable 1 comes into contact with the feeler 13 and drives it under the effect of traction, thus unlocking the holding system 25.
  • the element 10 slides longitudinally inside the tube 11 under the effect of this traction.
  • the probe is no longer limited in its stroke by the aircraft, it allows the element 10 to come into abutment on the end 12.
  • the connecting cable 1, linked to the mechanical device C, not shown but described in FIG. 1, has then traveled the sufficient distance allowing the activation of the triggering means D of the load A.
  • the launching rocket being armed, the other safety devices having been removed, load A can operate.
  • a sealing capsule can be fixed, for example, on the element 26 fixing the support 14. This capsule is very useful when storing the charges A in an unsheltered place.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Tires In General (AREA)

Description

L'invention concerne le domaine des charges largables à partir d'un aéronef auquel elles sont fixées et, en particulier, le dispositif de sécurité de poutre qui interdit l armement de la charge lorsque celle-ci est accrochée sous l'aéronef.The invention relates to the field of jettisonable loads from an aircraft to which they are attached and, in particular, the beam safety device which prohibits the arming of the load when the latter is hung under the aircraft.

La plupart des charges largables, telles que des bombes, sont équipées d'un certain nombre de systèmes de commande ou d'armement, par exemple des fusées, qu'il est nécessaire d'armer, après largage, à un moment déterminé de la trajectoire de la charge. L'autorisation d'armer est effectuée, dans la plupart des cas, au moyen d'une sécurité largable appelée plus communément "SL" constituée par un câble souple ou semi-rigide, relié à l'une de ses extrémités à la poutre de l'aéronef, c'est-à-dire la partie métallique fixée à la structure de l'avion sur laquelle on accroche les charges, et à l'autre, à la charge à larguer ou, dans certains cas, à la fusée de la bombe.Most droppable loads, such as bombs, are equipped with a number of control or arming systems, such as rockets, which must be cocked after dropping at a specified time in the load trajectory. The authorization to arm is carried out, in most cases, by means of a releasable safety device more commonly called "SL" constituted by a flexible or semi-rigid cable, connected at one of its ends to the beam of the aircraft, that is to say the metal part fixed to the structure of the aircraft on which the loads are attached, and to the other, to the load to be dropped or, in certain cases, to the rocket of the bomb.

La traction intempestive de ce câble soit au moment de la mise en place sous l'aéronef, soit pendant le vol d'emport de la charge sous aéronef, par exemple sous l'effet de l'impact d'un volatile, peut provoquer l'armement inopiné partiel ou total de la charge à larguer ou de la fusée de la bombe.The untimely pulling of this cable either at the time of installation under the aircraft, or during the flight of carrying the load under aircraft, for example under the effect of the impact of a volatile, can cause l '' partial or total unintentional arming of the load to be dropped or of the bomb rocket.

Pour pallier cet inconvénient la demande de brevet FR-A-2.443.663 propose d'utiliser un dispositif d'activation, comprenant par exemple un câble de traction accrochable à l'aéronef, le dispositif étant commandé par le déplacement d'un organe d'accrochage, consécutif à la séparation de l'engin et de l'aéronef, ce déplacement éliminant en outre une sécurité d'emport équipant le dispositif d'activation.To overcome this drawback, patent application FR-A-2,443,663 proposes using an activation device, comprising for example a traction cable hookable to the aircraft, the device being controlled by the movement of a attachment member, consecutive to the separation of the machine and the aircraft, this movement further eliminating carrying safety equipping the activation device.

D'une manière générale, les dispositifs de sécurité de poutre peuvent être soit électriques, soit mécaniques. Dans ce dernier cas qui correspond au domaine de l'invention décrite, le dispositif de sécurité interdit partiellement ou totalement le mouvement du câble "SL" lorsque la bombe est accrochée sous l'aéronef ; ces dispositifs doivent permettre, dans leur application, à la fois :

  • l'accrochage de la "SL" à n'importe quel point de la poutre aéronef,
  • de fonctionner lorsque la distance entre la partie supérieure de la charge embarquée et la poutre de l'aéronef, sont comprises entre quelques millimètres et quelques centimètres,
  • d'interdire, dans une même charge, l'armement de deux fusées.
Generally, beam safety devices can be either electrical or mechanical. In the latter case, which corresponds to the field of the invention described, the safety device partially or totally prohibits the movement of the "SL" cable when the bomb is hung under the aircraft; these devices must allow, in their application, both:
  • the attachment of the "SL" at any point on the aircraft beam,
  • operate when the distance between the upper part of the on-board load and the beam of the aircraft is between a few millimeters and a few centimeters,
  • to prohibit, in the same charge, the arming of two rockets.

Ils doivent, d'autre part, occuper le volume le plus restreint possible pour éviter de nuire :

  • à la rigidité générale de la charge
  • à ses performances en tant que générateur d'éclats
  • à la balistique de la charge si les dispositifs sont externes.
They must, on the other hand, occupy the smallest possible volume to avoid harming:
  • the general rigidity of the load
  • to its performance as a shard generator
  • load ballistics if the devices are external.

L'objet de l'invention est un dispositif de sécurité de poutre tel que défini dans les revendications 1 à 13.The object of the invention is a beam safety device as defined in claims 1 to 13.

L'invention sera mieux comprise à l'aide de la description suivante donnée à titre d'exemple non limitatif et illustrée par les dessins qui représentent :

  • Figure 1, le schéma d'une charge munie du dispositif selon l'invention après son montage dans la charge,
  • Figure 2, le schéma d'une charge munie du dispositif selon l'invention après son accrochage sous un aéronef,
  • Figure 3, le schéma d'une charge munie du dispositif selon l'invention après étirement d'un câble avant le largage de la charge,
  • Figure 4, le schéma d'une charge munie du dispositif selon l'invention après le largage de la charge, de l'aéronef.
  • Figure 5, le schéma d'une charge munie de deux dispositifs selon l'invention.
The invention will be better understood with the aid of the following description given by way of nonlimiting example and illustrated by the drawings which represent:
  • FIG. 1, the diagram of a load fitted with the device according to the invention after it has been mounted in the load,
  • FIG. 2, the diagram of a load fitted with the device according to the invention after it is hooked up under an aircraft,
  • FIG. 3, the diagram of a load provided with the device according to the invention after stretching a cable before the load is released,
  • Figure 4, the diagram of a load provided with the device according to the invention after the release of the load from the aircraft.
  • Figure 5, the diagram of a load provided with two devices according to the invention.

La figure 1 représente une charge A munie du dispositif B selon l'invention, après le montage de ce dernier dans la charge et avant toute manipulation. Ce dispositif est relié par l'intermédiaire d'un câble de liaison 1, à un dispositif mécanique C qui arme des moyens de déclenchement D constitués, entre autres, d'une liaison 30 qui arme une fusée de mise à feu 7 de la charge. Ce dispositif mécanique C est constitué, par exemple, d'une tige 2 sur laquelle est fixée une poulie 3 dont la jante reçoit le câble 1 qui a l'une de ses extrémités fixée à un point d'accrochage 4 positionné à la périphérie d'un tube 29 placé à l'intérieur de la charge relié au dispositif selon l'invention par un conduit 9 et contenant entre autres, le dispositif mécanique C et la fusée de mise à feu de la charge 7. Lorsque le câble 1 est tiré, la poulie 3 comprime un ressort 5 entre elle-même et une butée 28 placée à l'intérieur du tube 29 et fait translater la tige 2 en direction d'une tige d'armement 6 jusqu'à ce qu'il la pousse de quelques centimètres de façon à armer la fusée de mise à feu 7 par l'intermédiaire de la liaison 30. Selon les techniques connues, ce déplacement était limité à une course de 40 mm et ne permettait pas une grande liberté de manoeuvre de la "SL" et du palpeur de poutre ; l'invention comporte des moyens d'allongement de la course constitués par exemple d'un système mécanique tel qu'un système à deux poulies où la course du câble est doublée (80 mm). Le dispositif B selon l'invention comporte le câble de liaison 1 dont l'une des extrémités 8 est destinée à être fixée sous un aéronef non représenté, la fixation sous cet aéronef pouvant être réalisée à différents endroits en ajoutant, par exemple, à l'extrémité 8, un câble d'allongement permettant d'atteindre un point d'accrochage déterminé. Ce câble de liaison 1 est positionné à l'intérieur d'un conduit 9 dont les dimensions ont été calculées par rapport à l'emplacement des différents modules composant la charge A ainsi qu'à la position du système d'accrochage de la "SL", c'est-à-dire du câble 1, sous l'aéronef. Ce câble 1 assure la liaison avec les moyens de déclenchement D. Ce câble 1 est séparé en deux parties 1′ et 1˝ reliées entre elles par un élément 10 pouvant coulisser à l'intérieur d'un tube 11 jusqu'à une extrémité 12. Ce câble souple ou semi-rigide, par exemple, en multi-brins inox, passe à l'intérieur d'un palpeur 13 placé dans un support ou bouchon fileté 14 fixe par rapport à une bague externe 26 qui empêche tout mouvement du support 14 et située sur la périphérie de la charge A ; un trou 27, permettant le passage du palpeur 13 à l'intérieur du support 14, se trouve en face du trou du conduit 9. Le palpeur 13 est, par exemple, un cylindre creux, où, à sa périphérie, on a usiné une rainure verticale 15 permettant l'insertion du câble 1 à l'intérieur du cylindre creux. L'extrémité supérieure de ce palpeur 13 est obturée par une tête 16 n'autorisant pas la sortie du câble par cette extrémité supérieure mais sur une surface latérale. D'autre part, ce palpeur 13 est laissé libre en rotation à l'intérieur du support 14 pour faciliter l'accrochage du câble 1 sous l'aéronef. Il est maintenu dans sa position initiale grâce à un système de maintien 25, par exemple, un système comprenant un ressort 18 poussant un clapet 17 contre une bille 19 se logeant dans une gorge 20 réalisée à la périphérie du palpeur de manière à ce que la bille 19 du système de maintien 25 vienne en appui sur cette gorge 20 et maintienne le palpeur 13 dans la position représentée lorsqu'aucune traction n'est exercée sur le câble 1. En effet, le câble 1 est muni d'une butée, par exemple une bille 21, située à une distance déterminée d'une autre butée fixée sur l'extrémité inférieure du palpeur de façon à ce que, lorsqu'une traction est effectuée sur le câble, la bille 21 vient au contact de l'extrémité inférieure du palpeur entraînant ainsi, après déverrouillage du système de maintien 25 dû à la force de traction, le palpeur 13. La butée est réalisée, par exemple, par un élément 22 venant se visser sur l'extrémité inférieure du palpeur ; cet élément 22 possède, en son centre, un creux permettant le centrage du câble et une rainure sur sa périphérie autorisant l'insertion du câble en son centre. La position de la bille 21 sur le câble 1 assure le mouvement de translation du palpeur sous l'effet d'une certaine traction et ce dernier, lorsqu'il est placé sous l'aéronef, empêche, en heurtant la poutre de l'aéronef, le déroulement de la traction du câble c'est-à-dire le déclenchement des moyens d'armement.FIG. 1 represents a load A provided with the device B according to the invention, after mounting the latter in the load and before any manipulation. This device is connected via a connecting cable 1, to a mechanical device C which arms triggering means D consist, inter alia, of a link 30 which arms a firing rocket 7 of the charge. This mechanical device C consists, for example, of a rod 2 on which is fixed a pulley 3 whose rim receives the cable 1 which has one of its ends fixed to a hooking point 4 positioned at the periphery d 'a tube 29 placed inside the load connected to the device according to the invention by a conduit 9 and containing inter alia, the mechanical device C and the firing rocket of the load 7. When the cable 1 is pulled , the pulley 3 compresses a spring 5 between itself and a stop 28 placed inside the tube 29 and causes the rod 2 to translate in the direction of an arming rod 6 until it pushes it out. a few centimeters so as to arm the firing rocket 7 via the link 30. According to known techniques, this displacement was limited to a stroke of 40 mm and did not allow great freedom of maneuver of the "SL "and the beam probe; the invention comprises means for lengthening the stroke constituted for example by a mechanical system such as a two-pulley system where the cable stroke is doubled (80 mm). The device B according to the invention comprises the connecting cable 1, one of the ends 8 of which is intended to be fixed under an aircraft not shown, the fixing under this aircraft being able to be carried out at different places by adding, for example, to the 'end 8, an extension cable making it possible to reach a determined attachment point. This connecting cable 1 is positioned inside a conduit 9 whose dimensions have been calculated relative to the location of the different modules making up the load A as well as to the position of the attachment system of the "SL ", that is to say cable 1, under the aircraft. This cable 1 provides the connection with the triggering means D. This cable 1 is separated into two parts 1 ′ and 1˝ connected together by an element 10 which can slide inside a tube 11 to one end 12 This flexible or semi-rigid cable, for example in stainless steel multi-strand, passes inside a probe 13 placed in a support or threaded plug 14 fixed relative to an outer ring 26 which prevents any movement of the support 14 and located on the periphery of the load A; a hole 27, allowing the passage of the probe 13 inside the support 14, is located opposite the hole of the conduit 9. The probe 13 is, for example, a hollow cylinder, where, at its periphery, a vertical groove 15 allowing the insertion of the cable 1 inside the hollow cylinder. The upper end of this probe 13 is closed off by a head 16 which does not allow the cable to exit through this upper end but on a lateral surface. On the other hand, this probe 13 is left free to rotate inside the support 14 to facilitate the attachment of the cable 1 under the aircraft. It is held in its initial position by a holding system 25, for example, a system comprising a spring 18 pushing a valve 17 against a ball 19 being housed in a groove 20 produced at the periphery of the probe so that the ball 19 of the retaining system 25 comes to bear on this groove 20 and maintains the probe 13 in the position shown when no traction is exerted on the cable 1. In fact, the cable 1 is provided with a stop, by example a ball 21, located at a determined distance from another stop fixed on the lower end of the probe so that, when a pull is made on the cable, the ball 21 comes into contact with the lower end of the probe thus driving, after unlocking of the holding system 25 due to the traction force, the probe 13. The stop is produced, for example, by an element 22 which is screwed onto the lower end of the probe; this element 22 has, in its center, a recess allowing the centering of the cable and a groove on its periphery allowing the insertion of the cable at its center. The position of the ball 21 on the cable 1 ensures the translational movement of the probe under the effect of a certain traction and the latter, when placed under the aircraft, prevents, by striking the beam of the aircraft , the course of the traction of the cable, that is to say the triggering of the arming means.

Les figures 2, 3 et 4 représentent les différentes phases de fonctionnement du dispositif lorsqu'il est placé sous un aéronef. La figure 2 représente la charge A munie du dispositif B selon l'invention après son accrochage sous un aéronef E. L'anneau d'accrochage 8 est accroché sous l'aéronef E à un endroit 24 fixé par les conditions de réalisation et de montage de l'aéronef et à une distance quelconque de la sortie du câble de sécurité 1. A cet instant, aucun élément du dispositif ne subit de contrainte et la charge reste donc inactive.Figures 2, 3 and 4 show the different operating phases of the device when it is placed under an aircraft. FIG. 2 represents the load A provided with the device B according to the invention after its attachment to an aircraft E. The attachment ring 8 is attached to the aircraft E at a location 24 fixed by the conditions of construction and assembly of the aircraft and at any distance from the exit of the safety cable 1. At this instant, no element of the device is subjected to stress and the load therefore remains inactive.

La figure 3 représente la charge A munie du dispositif selon l'invention après étirement de la "SL" avant le largage de la charge A. On réalise une traction sur le câble 1, la bille 21 fixée sur ce câble 1 vient en appui sur l'élément 22 fixé à l'extrémité du palpeur 13 et elle entraîne ce dernier, après déverrouillage du système de maintien 25 dû à une tension suffisante sur le câble 1, dans un mouvement vertical de translation. La charge étant placée sous l'aéronef E, le palpeur 13, après une course de quelques centimètres, heurte ce dernier et évite ainsi tout armement des moyens de déclenchement D de la fusée de mise à feu de la charge.FIG. 3 represents the load A provided with the device according to the invention after stretching the "SL" before the release of the load A. A traction is carried out on the cable 1, the ball 21 fixed on this cable 1 comes to bear on the element 22 fixed to the end of the probe 13 and it drives the latter, after unlocking of the holding system 25 due to sufficient tension on the cable 1, in a vertical translational movement. The load being placed under the aircraft E, the probe 13, after a stroke of a few centimeters, strikes the latter and thus avoids arming the triggering means D of the firing rocket of the load.

La figure 4 représente la charge A munie du dispositif selon l'invention après étirement de la "SL" et après son largage de l'aéronef. Dans la première phase suivant l'instant du largage, la bille 21 positionnée sur le câble 1 vient au contact du palpeur 13 et l'entraîne sous l'effet de la traction, débloquant ainsi le système de maintien 25. L'élément 10 coulisse longitudinalement à l'intérieur du tube 11 sous l'effet de cette traction. Le palpeur n'étant plus limité dans sa course par l'aéronef, il permet à l'élément 10 d'arriver en butée sur l'extrémité 12. Le câble de liaison 1, lié au dispositif mécanique C non représenté mais décrit à la figure 1 a parcouru, alors, la distance suffisante permettant l'activation des moyens de déclenchement D de la charge A. La fusée de mise à feu étant armée, les autres sécurités ayant été retirées, la charge A peut fonctionner.FIG. 4 represents the load A provided with the device according to the invention after stretching of the "SL" and after its release from the aircraft. In the first phase following the instant of the release, the ball 21 positioned on the cable 1 comes into contact with the feeler 13 and drives it under the effect of traction, thus unlocking the holding system 25. The element 10 slides longitudinally inside the tube 11 under the effect of this traction. The probe is no longer limited in its stroke by the aircraft, it allows the element 10 to come into abutment on the end 12. The connecting cable 1, linked to the mechanical device C, not shown but described in FIG. 1, has then traveled the sufficient distance allowing the activation of the triggering means D of the load A. The launching rocket being armed, the other safety devices having been removed, load A can operate.

Pour éviter des infiltrations dans le système décrit, une capsule d'étanchéité peut être fixée, par exemple, sur l'élément 26 fixant le support 14. Cette capsule est très utile lors du stockage des charges A dans un endroit non abrité.To avoid infiltration into the system described, a sealing capsule can be fixed, for example, on the element 26 fixing the support 14. This capsule is very useful when storing the charges A in an unsheltered place.

Dans l'exemple du mode de réalisation décrit, un seul palpeur a été utilisé et mis en place à l'intérieur de la charge A mais pour des applications particulières, par exemple, lorsque la charge comporte une fusée d'ogive et une fusée de culot, il est envisageable de réaliser un support muni de deux palpeurs équipés du même dispositif selon l'invention, comme le montre la figure 5. Ce dispositif permet donc l'armement de deux fusées non représentées sur le dessin de la figure 5. Pour ce faire, le support 14 comporte deux trous 27 et 27′ à l'intérieur desquels on place deux palpeurs 13 et 13′ selon l'invention. Le système de maintien 25 fonctionne suivant le même principe que celui de l'invention, à savoir qu'il est déverrouillé lorsqu'une traction suffisante est exercée sur les câbles 1 et 31, la seule différence est que son encombrement doit être réduit.In the example of the embodiment described, a single probe was used and placed inside the load A but for specific applications, for example, when the load comprises a warhead rocket and a rocket of base, it is conceivable to produce a support provided with two feelers equipped with the same device according to the invention, as shown in FIG. 5. This device therefore allows the arming of two rockets not shown in the drawing of FIG. 5. For to do this, the support 14 has two holes 27 and 27 ′ inside which two probes 13 and 13 ′ are placed according to the invention. The holding system 25 operates on the same principle as that of the invention, namely that it is unlocked when sufficient traction is exerted on the cables 1 and 31, the only difference is that its size must be reduced.

Le dispositif selon l'invention s'applique plus particulièrement aux bombes à canal axial c'est-à-dire dont la fusée de mise à feu est vissée suivant l'axe de la bombe. En effet, sur certaines bombes, par exemple, toutes les bombes du type MK, le dispositif selon l'invention répond à toutes les exigences de sécurité et de réalisation pour être utilisé. Ce dispositif peut être réalisé suivant des dimensions différentes notamment suivant la place disponible dans la charge mais aussi suivant les différents éléments constituant l'invention, par exemple, la taille du palpeur peut varier suivant la distance de la poutre de l'aéronef à la charge embarquée.The device according to the invention applies more particularly to bombs with an axial channel, that is to say one whose firing rocket is screwed along the axis of the bomb. Indeed, on certain bombs, for example, all bombs of the MK type, the device according to the invention meets all the security and construction requirements to be used. This device can be produced according to different dimensions, in particular according to the space available in the load but also according to the various elements constituting the invention, for example, the size of the probe can vary according to the distance from the beam of the aircraft to the on-board load.

Claims (13)

  1. Pylon safety device for an aircraft for a load which can be released from this pylon, including a cable (1) placed within a load (A), one of the extremities (8) of the cable being fixed to the pylon, a support (14) positioned at the periphery of the load, a feeler (13) detecting the presence of the pylon and locked by a holding system (25), as well as means (D) for arming a firing fuse (7) of the load, the said device being characterised in that the feeler (13) is fixed into the support (4) within the load, in that the cable (1) passes into a conduit (9) fixed, on the one hand, to the support (14) and, on the other hand, to the arming means (D), and also passes into the feeler (13) by way of insertion means allowing a lateral exit for the cable, and in that this cable (1) is equipped with a stop (21) situated at a defined distance from the feeler (21), which, under the effect of sufficient traction on the cable (1) unlocks the holding system (25), which gives the feeler, which is free in rotation, a translation movement which is limited by the pylon of the aircraft when the load is placed under this pylon, thus blocking the traction on the cable, and which allows activation of the arming means (D) after the release of this load.
  2. Pylon safety device according to Claim 1, characterised in that the feeler (13) possesses a groove (15) allowing the insertion of the cable (1) within the feeler (13).
  3. Pylon safety device according to one of the preceding claims, characterised in that the feeler (13) possesses, at its lower extremity, an element (22) allowing a ball (21) of the cable (1) to come to abut on the feeler (13) in order then to pull it along.
  4. Pylon safety device according to one of the preceding claims, characterised in that the support (14) has at least one hole (27), allowing the passage of the feeler (13), positioned opposite at least one conduit (9).
  5. Pylon safety device according to one of the preceding claims, characterised in that the holding system includes a spring (18) pushing a flap (17) against a ball (19) lodging in a groove (20) thus blocking any translation movement of the feeler when no traction is exerted on the cable (1).
  6. Pylon safety device according to one of the preceding claims, characterised in that the support (14) is fixed with respect to an external ring (26) which prevents any movement of the support (14).
  7. Pylon safety device according to one of the preceding claims, characterised in that the external ring (26) supports a sealing capsule closing the support (14).
  8. Pylon safety device according to one of the preceding claims, characterised in that a mechanical system (C) includes means for lengthening the travel of the cable (1) triggering the arming means (D).
  9. Pylon safety device according to Claim 8, characterised in that the lengthening means consist of a double-pulley mechanical system.
  10. Pylon safety device according to one of the preceding claims, characterised in that the cable (1) is flexible or semi-rigid.
  11. Pylon safety device according to one of the preceding claims, characterised in that the cable (1) includes two parts (1') and (1'') linked by an element (10) placed within a tube (11).
  12. Pylon safety device according to Claim 10, characterised in that the element (10) slides longitudinally under the action of the cable (1), inside the tube (11) as far as the extremity (12) providing for the triggering of the arming device for the load A.
  13. Bomb with arming system, characterised in that it comprises a pylon safety device according to any one of Claims 1 to 12.
EP89403625A 1988-12-30 1989-12-22 Safety device for a releasable airborne charge Expired - Lifetime EP0376826B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817486 1988-12-30
FR8817486A FR2641859B1 (en) 1988-12-30 1988-12-30 SECURITY FOR WIDER AIRPORT LOAD

Publications (2)

Publication Number Publication Date
EP0376826A1 EP0376826A1 (en) 1990-07-04
EP0376826B1 true EP0376826B1 (en) 1993-11-18

Family

ID=9373623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403625A Expired - Lifetime EP0376826B1 (en) 1988-12-30 1989-12-22 Safety device for a releasable airborne charge

Country Status (5)

Country Link
US (1) US4989492A (en)
EP (1) EP0376826B1 (en)
CA (1) CA2006830A1 (en)
DE (1) DE68910795T2 (en)
FR (1) FR2641859B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8443726B2 (en) * 2010-02-10 2013-05-21 Omnitek Partners, Llc Miniature safe and arm (S and A) mechanisms for fuzing of gravity dropped small weapons

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2173669B1 (en) * 1972-01-28 1976-06-11 Rafaut & Cie
US3872770A (en) * 1973-04-09 1975-03-25 Motorola Inc Arming system safety device
US3960086A (en) * 1975-02-28 1976-06-01 The United States Of America As Represented By The Secretary Of The Army Air valve safety device for bomb fuzes
FR2443663B1 (en) * 1978-08-31 1985-09-06 Matra IMPROVEMENTS ON AVIATION BOMBS AND THEIR ACTIVATION DEVICE
FR2457218A1 (en) * 1979-05-23 1980-12-19 Thomson Brandt SECURITY DEVICE FOR WIDENING A LOAD, SUSPENDED FROM AN AIRCRAFT FOR TRANSPORT, AND LOAD EQUIPPED WITH SUCH A DEVICE
FR2619902B1 (en) * 1987-08-28 1993-05-14 Thomson Brandt Armements ARMING DEVICE WITH SECURITY FOR A LOADABLE LOAD OF A CARRIER

Also Published As

Publication number Publication date
FR2641859A1 (en) 1990-07-20
US4989492A (en) 1991-02-05
DE68910795D1 (en) 1993-12-23
CA2006830A1 (en) 1990-06-30
EP0376826A1 (en) 1990-07-04
FR2641859B1 (en) 1991-03-22
DE68910795T2 (en) 1994-03-31

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