EP2083239B1 - Tête de combat à multiple charges d'effet - Google Patents

Tête de combat à multiple charges d'effet Download PDF

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Publication number
EP2083239B1
EP2083239B1 EP20090380006 EP09380006A EP2083239B1 EP 2083239 B1 EP2083239 B1 EP 2083239B1 EP 20090380006 EP20090380006 EP 20090380006 EP 09380006 A EP09380006 A EP 09380006A EP 2083239 B1 EP2083239 B1 EP 2083239B1
Authority
EP
European Patent Office
Prior art keywords
fuse
pan
casings
wall
lid
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.)
Active
Application number
EP20090380006
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German (de)
English (en)
Other versions
EP2083239A2 (fr
EP2083239A3 (fr
Inventor
Jose Ignacio Bardisa Jorda
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.)
Falken SA
Original Assignee
Falken SA
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Filing date
Publication date
Application filed by Falken SA filed Critical Falken SA
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Publication of EP2083239A3 publication Critical patent/EP2083239A3/fr
Application granted granted Critical
Publication of EP2083239B1 publication Critical patent/EP2083239B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
    • F42B12/48—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances smoke-producing, e.g. infrared clouds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B27/00—Hand grenades

Definitions

  • the present invention refers to a fragmentable aerodynamic device, which can be launched manually or with a firearm, and which contains substances that produce smoke-generating gases, lachrymatory gases, signaling gases, etc.
  • the device of the invention comprises a cylindrical body containing a series of independent gas-generating units, coupled and axially fixed to one another, having one of the external units a fuse which can be manually or automatically activated, through firearm launching.
  • each smoke-generating unit comprises a cylindrical casing, which comprises a pan and a lid, where the combustible product resulting from the gases is located.
  • the pan and the lid are usually metallic, normally made of aluminum, which increases the cost and weight of each unit and of the smoke-generating device.
  • the fixing together of the pans can pose safety problems, including the risk of accidental separation of the pans, once the device is launched, before it reaches a convenient height or distance.
  • Document US5983801 constitutes the prior art closest to the invention as claimed and discloses a three-in-one smoke grenade to disperse unruly crowds, which emits three smoke trails and deploys at three separate locations on the assembly site of the unruly crowd to avoid the throwing of the smoke source by a crowd member to another location away from the assembly site.
  • Document DE4400545 shows a smoke charge artillery grenade with a front housing holding an ejection/ignition charge and a cylinder-shaped shell holding a plurality of axially, consecutively arranged smoke charge canisters (5) which are ejected through the bottom of the shell on ignition of the election charge.
  • Each canister (5) has a central tube (6) having one or more openings (24) through which the flames from the ejection/ignition charge initiates the ignition of the smoke charge (28) via a delay charge (26).
  • the openings (24) are provided only at one end of the tube (6) initiating an axial combustion of said smoke charge (28).
  • the tube (6) is also provided with holes which are initially closed by plugs (27) which are expelled therefrom by the heat and/or pressure generated by the burning charge (28).
  • Document FR2758879 discloses a launcher for a projectile, especially a tear-gas grenade, which consists of a launch tube (2) with a circular end face (7), an ignition system for the projectile and a propulsion unit.
  • the ignition system comprises an igniter button (3) with a handle (4) which can be fixed to the circular end face (7).
  • the grenade (5) has a cover (15) and a base (14) to which the propulsion unit (6) is attached, while the circular base (25) of the propulsion unit has a protective covering (26).
  • the free end of the launch tube, from which the grenade is ejected, is closed prior to use by a sealing cover (10).
  • Document EP1296112 which belongs to the same applicant as the present application, shows a device with combustible charge with smoke-generating, tear-generating or signaling effects, which comprises a casing (1) housing a series of charges (2) traversed by an ignition cord (16), which casing is closed by means of a cover (3) which delimits an inner chamber (25) and carries a fuse (18). Between the charges (2) and the end wall (6) of the casing (1) there is a spacer (7') which defines a chamber (8), between said end wall (6) and the nearest charge (2), and which may consist of a cylindrical wall, inside which are housed one or more parachutes (26), to each of which a charge (2) is connected.
  • a spacer (7') which defines a chamber (8), between said end wall (6) and the nearest charge (2), and which may consist of a cylindrical wall, inside which are housed one or more parachutes (26), to each of which a charge (2) is connected.
  • Document WO0203018 discloses a cargo device (1) carrying submunitions and incorporating guidance and target seeking functions.
  • the triggering or actuation of the submunitions is determinable by means of a programming function on the ground or on board another weapon platform or via a link from the ground or said weapon platform.
  • the submunitions are also actuatable by impact function.
  • the programming function incorporates or interacts with mode determining devices that cause the cargo device and its submunitions to operate either in a penetrator mode, in which the submunitions are essentially conjoined in a common triggering or actuation function, or in a separation mode, in which the submunitions sequentially leave the cargo device and from, or coordinated with, the triggering or actuation functions of the other submunitions.
  • the object of the present invention is to eliminate the aforementioned problems, using a device in which the casings and lids of the gas-generating units are preferably made of plastic, for example of a polyamide or tropicalized polyamide, which enables to lower the cost and weight of the pans, as well as avoiding the risk of oxidation.
  • Another object of the invention is to provide the pans with means to secure the fixing between the different smoke-generating units, preventing their accidental separation and guaranteeing that the separation between the units will only take place after shooting the device, once it reaches a convenient height or distance.
  • Another object of the invention is to make the device have a delay in the fire transmission, between the fuse and the nearest unit, as well as means that secure the fire transmission between the different units and their separation, once the fuse is activated and the device is launched.
  • each one of the pans has an internal central core, which is located between the casing bases and has a coaxial drill which goes through said bases, except for the external base of the end unit which does not bear the fuse.
  • the drill has the function of containing a fire-transmitting mix, said mix being in contact with a fire retardant device located between the fuse and the base adjacent to the unit bearing said fuse.
  • each unit which comprises a pan and a lid
  • This core can be a part of the lid and rest on the internal surface of the bottom of the pan.
  • the coaxial drill of said internal core has parts of different sections which guarantee the fire transmission between consecutive units and enough gas generation to guarantee the separation of the different units, once the fuse is activated and the device is launched.
  • the pan has on its wall an external peripheral recess, from the closed base, and an internal peripheral recess, from the free edge of the wall. These recesses have the same diameter and depth, so that the external peripheral recess of each unit can be coupled in the internal peripheral recess of the next unit, defining coupling means between casings.
  • pans have on their wall mutual fixing means which can be released, once the device is launched and the fuse is activated, when the pressure of the gases generated by the combustion of the transmission mixes and the combustible contained in each casing reaches a pre-established value, which guarantees that the device reaches a convenient height or distance.
  • the fixing means between consecutive casings consists of small flanges and complementary housings which the pans have on their wall in coincident positions, in mutual coupling areas.
  • the flanges protrude axially from the free edge of the wall of the pan and the housings are located in coincident axial positions from the bottom of the external peripheral recesses, having said flanges and recesses complementary end flaring finishes, whose coupling and separation requires a slight elastic strain, which is attained since the casings are made of a plastic material.
  • the unit having the fuse has a second lid coupled on its free edge where the fuse is mounted.
  • This second lid has a central housing in which a core is mounted, having said core a retardant combustible mix, which will be in contact with the combustible mix filling the drill of the adjacent unit core.
  • the fuse has a safety catch which is broken by the firing pin, during the launching of the device by a firearm.
  • the device of the invention is designed in such a way that it can be shot regardless of the position in which it is inserted in the launching gun.
  • the firing pin of the fuse is internally retained by the safety catch, which can be broken when the device inserted in a certain direction is shot, while it is externally locked by an airtight cover which has a weakening ring which can be broken in case the device is inserted in the gun in the opposite direction, that is to say, through the fuse side.
  • FIG. 1 shows a pyrotechnic device built according to the invention, which comprises a body which in the example represented in the drawings has three gas-generating units, which are indicated with the reference numbers 1, 2 and 3.
  • Each unit includes a cylindrical casing comprising a pan 4 and a closing lid 5. Inside each casing there is a load 6 of a combustible product which produces smoke-generating gases, lachrymator gases, signaling gases, etc., which flow outwards through holes 7 which are in the lids 5.
  • One of the end units which in the example represented in the drawings is indicated by the reference number 3, has a fuse 8, which includes a body 9 defining a housing for a bushing 10 which has the firing pin 11 and is externally closed by a airtight cover 12 which can be easily broken.
  • the firing pin 11 is held in a shrinkage position by a safety catch 13, easily breakable, and by a spring 14.
  • a detonator 15 against which the firing pin 11 will act when it is displaced towards said detonator by breaking of the safety catch 13 and compression of the spring 14.
  • the pans of the different units except for the end unit 1, have on their wall, from the closed base, an external peripheral recess 16, as well as an internal peripheral recess 17 from the free edge of its wall, being said external peripheral recess 16 of each pan attachable in the internal peripheral recess 17 of the next pan, as it is shown in the drawings.
  • the pan 4 of the end unit 1 lacks an external peripheral recess, in order to constitute a closing bottom 18.
  • the closing lid 5 of each pan is located immediately on the inside of the internal peripheral recess 17 of the wall so that the bottom of each pan rests on the lid 5 of the next unit.
  • each pan has a central core 19 which has a coaxial drill 20, with parts having different sections, which are filled by a fire-transmitting mix 20'.
  • the pan of unit 3 which has the fuse 8 is closed by a second lid 22, which has a central housing on which a core 23 is mounted, having a retardant 24.
  • each lid goes through the lid and the bottom of each pan, so that the fire-transmitting mix 20' passes between the retardant 24 and the end unit 1, guaranteeing the ignition of all the gas-generating loads 6.
  • the bottom of each pan 4, except for the end unit 1, has a flaring 24 capable of housing a larger amount of fire-transmitting mix, which can generate enough gases to cause the separation between consecutive units, when the device is fired.
  • the firing pin 11 breaks the safety catch 13 and overcoming the spring 14 resistance, impacts on the detonator 15 igniting it, which in turn causes the turning-on of the retardant 24 which is transmitted, through the fire-transmitting mix 20', to the chemical loads 6.
  • the ignition of the fire-transmitting mix 20' in the flaring 24 causes the separation between the different units 1, 2 and 3.
  • the gases generated by the combustion of these chemical loads 6 will flow outwards through the holes 7 of the lids 5.
  • the device of the invention can also include a manually activated fuse, as it can be seen in figure 2 , in which the detonator 15' is ignited by the firing pin 11' by means of the lever 26, being said detonator mounted on the body of the fuse 9'.
  • the lever 26 can also be made of polyamide or tropicalized polyamide.
  • the device of figure 2 has a constitution coinciding with the one described with reference to figure 1 .
  • the recesses 16 and 17, which have approximately the same diameter and depth, constitute the coupling means between consecutive casings. Furthermore, these casings have mutual fixing means on their wall which can be released by the pressure of the original gases by the combustion of the transmission mixes and combustible mixes contained in each casing.
  • the flanges 28 of each pan will be inserted in the housings 30 of the next pan, once they are placed in the opposite position and exerting a slight pressure, until getting the flaring 30 of the flanges 28 penetrate in the housings 29, thanks to the elastic strain which will be attained since the pans are made of plastic material.
  • the pan 4 of the end unit represented in figure 4
  • the lid 22 represented in figure 5
  • it will have housings 29 to receive the flanges of the pan of the adjacent unit 3.
  • there are also fixing means which prevent the different units of the device from separating. The separation of the units will only take place, once the device is fired and the fuse is activated, when the combustion of the transmission mix 20' and of the combustible mix 6 starts and the gases reach a pre-established pressure, thus guaranteeing that the device launched will reach the convenient height or distance.
  • the fuse 8 includes a body 9 which defines a housing for a bushing 10 which has the firing pin 11 and is externally closed by an airtight cover 12 which has a weakening ring 32 which can be broken, in case the device is inserted in the gun through the fuse side, due to the gases produced during the detonation of the gun when said device is launched.
  • the breaking of the cover 12 will cause the displacement of the firing pin 11 until the safety pin 13 is broken and the spring 14 resistance is overcome, so that it impacts against the detonator causing the ignition of the retardant 24.
  • the performance of the device is guaranteed, regardless of the direction in which it is inserted in the gun.
  • the fixing means between the pans of the different casings, constituted by the flanges 28 and the housings 29 also act as fixing means between the housings in order to prevent them from rotating. These fixing means also guarantee that the different units are not separated until the necessary internal pressure is reached.
  • the different casings can also have on the wall, on the interior, an annular channel 33 in which an O-ring can be mounted, which results in a better seal between consecutive units.
  • the device only includes three gas-generating units, as it can be understood, this number can change, either increasing or decreasing.

Claims (6)

  1. Dispositif aérodynamique fragmentable comprenant un corps qui contient une pluralité d'unités de génération de gaz (1, 2 et 3), dont chacune a un revêtement cylindrique comprenant un récipient (4), avec une base et un rebord libre, et un couvercle de fermeture (5), dans lequel à l'intérieur de chaque revêtement se trouve un mélange combustible (6), dans lequel les différents revêtements sont axialement accouplés entre eux, dans lequel l'une des unités d'extrémité (3) a un détonateur d'ignition (8), dans lequel chacun des revêtements a une perforation axiale (20) passant à travers lesdites bases et lesdits couvercles (5), à l'exception de la base de l'unité d'extrémité (1) qui n'a pas de détonateur (8), ladite unité d'extrémité (1) n'ayant pas de perforation axiale (20) passant à travers la base, dans lequel lesdits revêtements ont sur leur paroi un accouplement mutuel libérable et des moyens de fixation, dans lequel, pour définir les moyens d'accouplement et de fixation entre les revêtements, le récipient (4) de chacune des unités à l'exception de l'unité d'extrémité (1) n'ayant pas de détonateur (8) a sur sa paroi de sa base un renfoncement périphérique externe (16), et sur sa paroi du rebord libre un renfoncement périphérique interne (17), dans lequel le couvercle est situé à proximité dudit rebord et dans lequel lesdits renfoncements (16, 17) ont le même diamètre et la même profondeur pour définir les moyens d'accouplement entre les revêtements, le dispositif étant caractérisé en ce que :
    - chacun des revêtements a un noyau coaxial interne (19) qui est situé entre la base et le couvercle de fermeture (5) du revêtement,
    - la perforation (20) passe également à travers chaque noyau (19) et est désignée pour contenir un mélange de transmission de feu (20'),
    - les moyens d'accouplement et de fixation sont configurés pour être libérés par la pression des gaz générés par la combustion du mélange de transmission (20') et le mélange combustible (6) contenu dans chaque revêtement.
  2. Dispositif selon la revendication 1, caractérisé en ce que les moyens de fixation entre les revêtements consécutifs consistent en des petites brides (28) et des logements complémentaires (29) que les récipients ont sur leur paroi dans des positions correspondantes aux zones d'accouplement.
  3. Dispositif selon la revendication 2, caractérisé en ce que lesdites brides (28) dépassent axialement le rebord libre de la paroi du récipient et les logements (29) sont situés dans des positions axiales correspondantes, depuis la partie inférieure des renfoncements périphériques externes (16), lesdites brides et lesdits renfoncements ayant des finitions évasées d'extrémité (30) complémentaires.
  4. Dispositif selon la revendication 2, caractérisé en ce que l'unité (3) ayant le détonateur (8) a un deuxième couvercle (22) accouplé sur le rebord libre de sa paroi sur lequel le détonateur est fixé, ledit deuxième couvercle ayant des logements complémentaires (29) avec les petites brides (28) du récipient (4) de l'unité adjacente (3) et forme un logement central où un noyau (23) est monté, ledit noyau ayant un mélange combustible retardateur (24) qui est situé entre le détonateur (8) et la perforation (20) de l'unité (3) ayant ledit détonateur.
  5. Dispositif selon la revendication 1, caractérisé en ce que le récipient (4) et le couvercle (5) de chaque revêtement sont réalisés en matière plastique, en polyamide ou en polyamide tropicalisé.
  6. Dispositif selon les revendications précédentes, caractérisé en ce que le corps (9) du détonateur (8) est extérieurement fermé par une enveloppe hermétique (12) qui a une bague d'atténuation (32) de la rupture de l'enveloppe en raison de l'effet des gaz produits pendant la détonation de l'arme à feu lorsque ledit dispositif est lancé.
EP20090380006 2008-01-22 2009-01-22 Tête de combat à multiple charges d'effet Active EP2083239B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200800145A ES2376207A1 (es) 2008-01-22 2008-01-22 Artificio aerodinámico fragmentable.

Publications (3)

Publication Number Publication Date
EP2083239A2 EP2083239A2 (fr) 2009-07-29
EP2083239A3 EP2083239A3 (fr) 2013-08-07
EP2083239B1 true EP2083239B1 (fr) 2015-04-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090380006 Active EP2083239B1 (fr) 2008-01-22 2009-01-22 Tête de combat à multiple charges d'effet

Country Status (3)

Country Link
EP (1) EP2083239B1 (fr)
ES (2) ES2376207A1 (fr)
PT (1) PT2083239E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11307007B2 (en) 2018-06-14 2022-04-19 Liberty Dynamic, Llc Chemical agent delivery receptacle with reusable digital control cartridge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2540734A (en) * 2015-06-16 2017-02-01 Thomas Lowe Defence Diversionary device
CN113048847A (zh) * 2021-03-23 2021-06-29 哈尔滨工程大学 一种基于多点火位的梯度式均匀起爆中心爆管

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311054A (en) * 1965-06-21 1967-03-28 John E Foster Smoke marker arrangement
DE3421708A1 (de) * 1984-06-12 1985-12-12 Buck Chemisch-Technische Werke GmbH & Co, 7347 Bad Überkingen Einrichtung zur erzeugung einer scheinzielwolke, insbesondere einer infrarot-scheinzielwolke
NO176495C (no) * 1993-02-03 1995-04-19 Raufoss As Anordning ved röykgranat
FR2758879B1 (fr) * 1997-01-30 1999-02-19 Nobelsport Dispositif de lancement de grenade lacrymogene
US5874690A (en) * 1998-02-06 1999-02-23 Brunn; Michael Smoke grenade with rapid ignition
US5983801A (en) * 1998-04-29 1999-11-16 Brunn; Michael Separating smoke grenade
SE519807C2 (sv) * 2000-07-03 2003-04-08 Bofors Weapon Sys Ab Stridsdelar medbärande enhet
US20030056680A1 (en) * 2001-09-25 2003-03-27 Falken, S.A. Device with combustible charge with smoke-generating, tear-generating or signaling effects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11307007B2 (en) 2018-06-14 2022-04-19 Liberty Dynamic, Llc Chemical agent delivery receptacle with reusable digital control cartridge
US11320248B2 (en) * 2018-06-14 2022-05-03 Liberty Dynamic, Llc Chemical agent delivery receptacle with reusable digital control cartridge
US11604053B2 (en) 2018-06-14 2023-03-14 Liberty Dynamic, Llc Chemical agent delivery receptacle with reusable digital control cartridge

Also Published As

Publication number Publication date
ES2376207A1 (es) 2012-03-12
PT2083239E (pt) 2015-09-02
EP2083239A2 (fr) 2009-07-29
ES2541931T3 (es) 2015-07-28
EP2083239A3 (fr) 2013-08-07

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