EP0065435A1 - Granate für den zivilen Einsatz mit schwacher Zündladung - Google Patents

Granate für den zivilen Einsatz mit schwacher Zündladung Download PDF

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Publication number
EP0065435A1
EP0065435A1 EP82400719A EP82400719A EP0065435A1 EP 0065435 A1 EP0065435 A1 EP 0065435A1 EP 82400719 A EP82400719 A EP 82400719A EP 82400719 A EP82400719 A EP 82400719A EP 0065435 A1 EP0065435 A1 EP 0065435A1
Authority
EP
European Patent Office
Prior art keywords
grenade
block
ignition
composition
blocks
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.)
Granted
Application number
EP82400719A
Other languages
English (en)
French (fr)
Other versions
EP0065435B1 (de
Inventor
Paul-Philippe Cord
Etienne Dupin
Alain Fauconnier
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Publication of EP0065435A1 publication Critical patent/EP0065435A1/de
Application granted granted Critical
Publication of EP0065435B1 publication Critical patent/EP0065435B1/de
Expired legal-status Critical Current

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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
    • F42B12/50—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 by dispersion
    • 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

Definitions

  • the invention relates to a cylindrical type intervention grenade, usable in particular either as a tear gas grenade or as a smoke grenade, depending on the active pyrotechnic composition put in place, and this grenade comprises at least one block with a central channel of active pyrotechnic composition, which can be ignited by means of an ignition composition internal to the grenade, and being housed in an external box that can be opened under the thrust of the combustion gases, this grenade may be provided with an axial igniter plug attached to the end back.
  • the igniter plugs which equip intervention grenades have a pyrotechnic delay, for example of the order of two to three seconds, before the igniter of these plugs is ignited and produces a directed heat flow in the grenade.
  • the effective functioning of the grenade then requires placing all the blocks of active pyrotechnic composition, called active blocks, in a stable combustion regime, and breaking the outer casing so as to eject these active blocks which are placed inside boxes cylindrical metal with openings for diffusing gases and combustion fumes.
  • the ignition composition covers the entire initial combustion surface of the active blocks, which gives rise to difficulties in production. since it is necessary to coat both the surface of the channel of the block and the free section or sections of this block, and this leads to deposits of ignition composition which have variable thicknesses depending on the initial viscosity of this composition.
  • a relay load generally consisting of one or more pellets of black powder, is then interposed between the metal cans and one of the ends of the outer casing.
  • the ignition composition forms a projection in the central channel of the composition blocks and at least partially obstructs this channel in which the heat flow from the igniter plug.
  • This second technique makes it possible to avoid the use of an internal relay charge while improving the stable combustion of the active blocks, but on the one hand the mass of ignition composition required is substantially equal to the sum of the masses of the ignition composition and the relay charge, and on the other hand this composition mass is not strictly constant and depends on the absorption power of the support which constitutes the projection in the central channel.
  • the present invention aims, on the one hand to reduce the mass of the ignition composition while avoiding the need for a relay charge, and on the other hand to have a constant mass of ignition composition in each grenade produced in large series, and is characterized in that, on the one hand, the central channel of the block is provided with an inner tube which can be destroyed in the thermodynamic conditions of combustion of the block, the ignition coating being limited in the free section of this block, and in that on the other hand the outer casing has an opening resistance which is greater than 2 bars.
  • the inner tube is made of a combustible material and has a thickness of less than 2 millimeters, but such a tube can also be constituted by a thin metal sheet, made of aluminum or tin for example, and this combustible material is advantageously a rigid material. derived from the cellulose, such as celluloid or cellulose acetate.
  • the ignition coating adheres, to the block of active pyrotechnic composition, to the inner tube, and to the internal lateral surface of the container in which the block is placed, and the inner tube can itself be secured at the bottom of the container to form a resistant assembly.
  • this particular implementation can then be supplemented by a spacer which is placed between the coating of ignition and the cover of the container, a tubular spacer being particularly suitable.
  • the external housing of the grenade is a one-piece tube, each end of which is closed by a closure, at least one of these closures can be ejected when the ignition pressure between 2 and 12 bars is reached, and the resistance to the opening of the outer casing can even be increased to 20 bars when the closures have the same resistance to ejection, so that the two closures are ejected almost simultaneously so as not to increase the dispersion of the containers placed in this container too much.
  • each container is a metal box which contains two blocks of active composition stacked one on the other, only the terminal block being covered by an ignition coating.
  • the implementation of the present invention makes it possible in particular to have a mass of the ignition coating which is less than 10%, and even less than 7%, of the mass of the active pyrotechnic composition.
  • the single figure represents substantially on a scale of 1 a tear gas canister whose outer casing (1) is constituted by a monobloc tube (la) made of cardboard on which the front bottom (2) and the rear bottom (3) are set in tin.
  • the rear bottom consists essentially of the igniter cap holder (4) and the stamped crown (5), the outer edge of which is folded down to form a crimp enclosing the end of the monobloc tube, the depth of penetration of this crimp into the cardboard being determined so that the tearing of this rear bottom occurs for an average pressure of 6 bars.
  • the front bottom (2) consists of a stamped disc whose outer edge is folded down to form a crimp which encloses the other end of the monobloc tube, and the penetration depth of this crimp in the carton is determined so that the tearing of this front bottom occurs for an average pressure of 3.5 bars, which allows normal unloading from the front of the grenade, unloading from the rear intervening only exceptionally
  • Two identical metallic cylindrical boxes (6, 7) are arranged, and wedged by means of the washer (8) inside the external box, and the bottoms (9 and 10) of these boxes have an axial opening whose diameter is slightly less than the diameter of the thread of the igniter cap holder (4), while the covers (11, 12) of these boxes have an axial opening whose diameter is greater than the diameter of the opening of the bottoms, and corresponds substantially to the diameter inner tubes (13, 14) of cellulose acetate which are glued to the bottoms (9, 10).
  • Each of these cylindrical boxes (6, 7) comprises two blocks (15, 16) of tear gas composition comprising a central channel whose diameter is greater than the diameter of the axial openings of the boxes, and the ignition coating (17) which is poured on the terminal block (16) adheres to this block, to the inner tube (13) and to the internal lateral surface of the box (7).
  • This ignition coating is produced from a suspension of 12% silicon and 88% minium in a collodion consisting of one part of double base powder (nitrocellulose and nitroglycerine) per ten parts by weight of acetone , and after evaporation of the solvent, the ignition coating forms a hard layer on which can bear the tubular spacer (18) made of cardboard which is interposed between this coating and the cover (11) of the box (7).
  • Such an ignition coating exhibits excellent adhesion to a tear gas composition which is based on an alkaline perchlorate, an organic binder and mineral additives, and the active compound of which is orthochlorobenzaldehydemalononitrile (CS ).
EP19820400719 1981-05-11 1982-04-22 Granate für den zivilen Einsatz mit schwacher Zündladung Expired EP0065435B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8109301A FR2505480B1 (fr) 1981-05-11 1981-05-11 Grenade d'intervention comportant une faible charge d'allumage
FR8109301 1981-05-11

Publications (2)

Publication Number Publication Date
EP0065435A1 true EP0065435A1 (de) 1982-11-24
EP0065435B1 EP0065435B1 (de) 1985-07-17

Family

ID=9258275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820400719 Expired EP0065435B1 (de) 1981-05-11 1982-04-22 Granate für den zivilen Einsatz mit schwacher Zündladung

Country Status (5)

Country Link
EP (1) EP0065435B1 (de)
DE (1) DE3264753D1 (de)
ES (1) ES8303681A1 (de)
FR (1) FR2505480B1 (de)
PT (1) PT74866B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001479A2 (de) * 1989-07-19 1991-02-07 Gustav Thorban Farbnebelgenerator
EP0499033A1 (de) * 1991-02-14 1992-08-19 Piepenbrock Pyrotechnik Gmbh Reizstoffpatrone oder -wurfkörper mit vergossener bzw. pastöser Reizstoffladung
FR3020059A1 (fr) * 2014-04-16 2015-10-23 Nexter Munitions Pot de composition fumigene
DE102020004562B4 (de) 2020-07-28 2024-04-18 Franz Drexler Reizstoffpatronen 40 mm und 1,5 Zoll

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683626B1 (fr) * 1991-11-13 1995-03-31 Poudres & Explosifs Ste Nale Grenade generatrice de gaz reversible.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096698A (en) * 1935-02-20 1937-10-19 Fed Lab Inc Gas dispersing projectile
FR1256056A (fr) * 1960-02-03 1961-03-17 Artifices Titan Soc D Mine-piège éclairante perfectionnée
FR1292149A (fr) * 1961-06-14 1962-04-27 Schermuly Pistol Rocket App Engin pyrotechnique de signalisation, en particulier fumigène
GB1383963A (en) * 1972-04-04 1974-02-12 Pain Wessex Ltd Pyrotechnic devices
US3795197A (en) * 1972-07-27 1974-03-05 M Levenson Tear gas grenade
DE2416118A1 (de) * 1973-04-03 1974-10-24 Walde Rauchladungsbehaelter
FR2430591A1 (fr) * 1978-07-08 1980-02-01 Nico Pyrotechnik Charge fumigene pour fusees et projectiles
FR2456934A1 (fr) * 1979-05-16 1980-12-12 Poudres & Explosifs Ste Nale Grenade d'intervention a mise a feu directe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096698A (en) * 1935-02-20 1937-10-19 Fed Lab Inc Gas dispersing projectile
FR1256056A (fr) * 1960-02-03 1961-03-17 Artifices Titan Soc D Mine-piège éclairante perfectionnée
FR1292149A (fr) * 1961-06-14 1962-04-27 Schermuly Pistol Rocket App Engin pyrotechnique de signalisation, en particulier fumigène
GB1383963A (en) * 1972-04-04 1974-02-12 Pain Wessex Ltd Pyrotechnic devices
US3795197A (en) * 1972-07-27 1974-03-05 M Levenson Tear gas grenade
DE2416118A1 (de) * 1973-04-03 1974-10-24 Walde Rauchladungsbehaelter
FR2430591A1 (fr) * 1978-07-08 1980-02-01 Nico Pyrotechnik Charge fumigene pour fusees et projectiles
FR2456934A1 (fr) * 1979-05-16 1980-12-12 Poudres & Explosifs Ste Nale Grenade d'intervention a mise a feu directe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001479A2 (de) * 1989-07-19 1991-02-07 Gustav Thorban Farbnebelgenerator
WO1991001479A3 (de) * 1989-07-19 1991-03-07 Gustav Thorban Farbnebelgenerator
EP0499033A1 (de) * 1991-02-14 1992-08-19 Piepenbrock Pyrotechnik Gmbh Reizstoffpatrone oder -wurfkörper mit vergossener bzw. pastöser Reizstoffladung
FR3020059A1 (fr) * 2014-04-16 2015-10-23 Nexter Munitions Pot de composition fumigene
DE102020004562B4 (de) 2020-07-28 2024-04-18 Franz Drexler Reizstoffpatronen 40 mm und 1,5 Zoll

Also Published As

Publication number Publication date
ES512032A0 (es) 1983-02-16
PT74866B (fr) 1985-01-25
EP0065435B1 (de) 1985-07-17
PT74866A (fr) 1982-06-01
FR2505480B1 (fr) 1985-12-27
DE3264753D1 (en) 1985-08-22
FR2505480A1 (fr) 1982-11-12
ES8303681A1 (es) 1983-02-16

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