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WO1997017587A1 - Fusee detonatrice, notamment pour grenades - Google Patents

Fusee detonatrice, notamment pour grenades Download PDF

Info

Publication number
WO1997017587A1
WO1997017587A1 PCT/EP1996/004870 EP9604870W WO9717587A1 WO 1997017587 A1 WO1997017587 A1 WO 1997017587A1 EP 9604870 W EP9604870 W EP 9604870W WO 9717587 A1 WO9717587 A1 WO 9717587A1
Authority
WO
WIPO (PCT)
Prior art keywords
detonator
housing
carrier tube
tube
tubular
Prior art date
Application number
PCT/EP1996/004870
Other languages
German (de)
English (en)
Inventor
Christof Hostert
Gottfried Koger
Original Assignee
Oregon Etablissement Für Patentverwertung
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 Oregon Etablissement Für Patentverwertung filed Critical Oregon Etablissement Für Patentverwertung
Publication of WO1997017587A1 publication Critical patent/WO1997017587A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C14/00—Mechanical fuzes characterised by the ammunition class or type
    • F42C14/02—Mechanical fuzes characterised by the ammunition class or type for hand grenades

Definitions

  • the invention relates to a detonator, in particular for hand grenades, with a tubular detonator housing which has a primer at one (upper) end, including a gas-generating pyrotechnic charge, which is at least partially designed as a delay charge, and a pyrotechnic charge below this Includes propulsive force from the assurance to the focus position detonator, the pyrotechnic set being arranged in an inner support tube, preferably concentric with the tubular igniter housing, which carries the detonator at its lower end and in the tubular igniter housing due to the gas pressure which passes through the pyrotechnic set builds up the erosion of the same, is axially displaceably mounted, whereby the detonator moves from the safeguard to the arming position.
  • Such a safety fuse is already known from WO-A 94/25819.
  • the carrier tube of the delay charge which also carries the detonator, is acted upon by a sufficiently strong compression spring towards the upper end of the detonator housing .
  • a sufficiently large frictional force i.e. a press fit between the inner support tube and the outer igniter housing keep the support tube and thus the detonator in safety.
  • a fusible link made of low-melting solder can be arranged between the inner support tube and the outer igniter housing, at least in a supportive manner (e.g. in addition to spring loading).
  • the object of the invention is therefore to eliminate the disadvantages of a detonator of the type mentioned at the outset and to create a detonator-safe detonator which guarantees particularly good securing of the detonator until the grenade is fired or the hand grenade is ejected.
  • the inner support tube is connected to the detonator housing and / or the primer support in a form-fitting manner or (with the exception of fusible link) in a form-fitting manner, and in that the displacement of the inner support tube together with the detonator is brought into focus after loosening or destroying the positive or material connection under the force of the pyrotechnic charge generated above the gas-generating set by burning off the gas pressure building up.
  • the positive connection provided for the securing of the carrier tube to the detonator housing or the primer carrier can, according to a preferred embodiment
  • Detonator housing or primer holder engages.
  • the projection can be formed on a securing sleeve, preferably made of plastic, which is firmly, preferably positively, connected to the upper end region of the carrier tube, it being expedient for a good hold of the securing sleeve on the carrier tube if the upper end region of the carrier tube is used for Connection with the securing sleeve is profiled, a preferably annular predetermined breaking zone being formed on the carrier tube, in particular in the case of a cohesive connection between the carrier tube on the one hand and the primer housing or primer carrier on the other hand.
  • the profile can also be a thread.
  • a material connection (for example by gluing, welding, soldering) can also be provided, but not - as in the known prior art - a solder joint that is produced when firing or Discharge softened by the heat that occurs when the deceleration set burns off and thereby dissolves, but rather by a material connection that can be mechanically destroyed by the force effect resulting from the pyrotechnic (deceleration) set burning up.
  • Fig. 1 shows a grenade detonator including detonator head in longitudinal section and Fig. 2 shows the enlarged sectional view of the detonator tube.
  • the hand grenade detonator shown in Fig. 1 consists - as usual - of an igniter head 1, e.g. made of plastic, on which a racket 2 is rotatably mounted. In the secured state, the racket is tensioned by a spring 3.
  • a securing bracket 4 holds the racket 2 in its cocked position, the securing bracket 4 being in turn secured by a split pin 5.
  • the ignition tube (Fig. 2) with the tubular igniter housing 6, e.g. made of brass, inserted (screwed in).
  • the detonator housing 6 contains a detonator cap 8 upwards in a primer carrier 7. It is important that the primer carrier 7 and the primer cap 8 close the interior of the primer housing 6 in a gas-tight manner.
  • the gas tightness must also be maintained if the nipple 9 of the striker 2 strikes the outer brass cap of the primer 8 when the hand grenade is ejected and this brass cap is dented, the pyrotechnic priming compound located in the interior of the primer 8 being activated and its fire jet enters the interior of the igniter housing 6 through exclusively inward openings of the primer 8 and primer carrier 7.
  • a coaxial cylindrical support tube 10 In the cylindrical interior of the igniter housing 6 there is a coaxial cylindrical support tube 10, e.g. made of brass.
  • the carrier tube 10 contains a pyrotechnic delay set 11.
  • a detonator housing 12 is formed on the carrier tube 10, which detonator sets of the detonator charge 13, e.g. contains lead acid as primary charge and nitropenta as secondary charge.
  • the connection between the space for the delay set 11 and the interior of the detonator housing 12 either remains open or is closed by a fuse plate (not shown) which can be blown through or blown through by the fire jet of the lowest subset of the delay set 11.
  • the carrier tube 10 of the delay set 11 is arranged with the detonator housing 12 integrally formed thereon in the igniter housing 6, the
  • the gap between the outside of the carrier tube 10 and the inside of the detonator housing 6 is so small, at least in places, that one can speak practically of a gastight guidance of the carrier tube 10 in the detonator housing.
  • the lower end of the igniter housing 6 is formed by a screwed-on housing part 15, which in the lower part is a thin-walled housing 15 'for an ignition amplifier charge 16, e.g. is formed from pressed nitropenta and contains above a pot-shaped insert 17, the bottom of which is designed as a spacer 18 with an opening 19.
  • a sealing ring (O-ring) 20 is arranged which (partially) projects into the interior of the detonator housing 6 .
  • the upper end of the carrier tube 10 is in a positive connection with the igniter housing, namely via a securing sleeve 21 made of plastic, e.g. Polyamide, which is pressed onto the upper, outer profiled end region 22 of the carrier tube 10.
  • a securing sleeve 21 made of plastic, e.g. Polyamide, which is pressed onto the upper, outer profiled end region 22 of the carrier tube 10.
  • the securing sleeve 21 engages with a protruding annular projection 23 in a recess (recess, shoulder) 24 of the inner wall of the carrier tube 10 and thereby forms a positive connection between the carrier tube 10 and the fuse housing 6.
  • a further positive connection is located between
  • the projection 23 also serves as a seal between the carrier tube 10, the fuse housing 6 and the primer carrier 7.
  • the lower end of the carrier tube 10 has a conical taper 25.
  • the function of the hand grenade detonator shown and described above is as follows: After removing the safety pin 5 and after throwing off the hand grenade, the safety bracket 4 is detached from the detonator head 1 and the striker 2 strikes the outer brass cap of the primer 8 with its nipple 9 Primer initially activates the uppermost subset of the deceleration set 11, which now burns off and thereby generates a high pressure of the order of approximately 100 bar in the space at the upper end of the carrier tube 10 (high-pressure space).
  • the uppermost part of the sentence can consist of a pyrotechnic material which is characterized by particularly strong gas development.
  • the high gas pressure causes the carrier tube 10 to be released from the form-fitting connection 21/22 or 23/24 with the igniter housing 6.
  • the "weaker" of the two positive connections which in the illustrated embodiment is generally the positive connection 21/22 between the profiled end region 22 of the support tube 10 and the securing sleeve 21 made of plastic, the positive connection 21/22 thus being a kind of target separating zone.
  • the O-ring 20 serves on the one hand to support the seal, and on the other hand to brake the carrier tube 10, which with its conical taper 25 slides into the O-ring 20.
  • the lower conical taper of the carrier tube 10 in cooperation with the O-ring 20 would also be advantageous in the case of an igniter of the type in question if the position of the carrier tube 10 in the securing is not exactly due to a positive or material connection of the carrier tube 10 the detonator housing (6) or primer support 7 is held (but for example by a press fit or under the action of a counter spring).
  • the detonator arrives in the pot-shaped insert 17 above the ignition amplifier charge 16, that is to say in the focus.
  • the detonator charge 13 is detonated after the delay set 11 has burned down, it in turn ignites the ignition amplifier charge 16 through the opening 19, which also detonates the explosive charge of the hand grenade.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne une fusée détonatrice pour grenades, comportant un boîtier (6) tubulaire qui contient à une extrémité (supérieure), une capsule-amorce (8), une charge fulminante (11) pyrotechnique produisant du gaz, placée dessous, et un détonateur (12, 13) pouvant passer d'une position de sécurité à une position d'amorce, sous l'effet de la traction propulsive, qui est situé en dessous de la charge fulminante (11) pyrotechnique. La charge fulminante (11) pyrotechnique est placée dans un support tubulaire (10) intérieur de préférence concentrique au boîtier (6) tubulaire de la fusée détonatrice. A son extrémité inférieure, le support tubulaire (10) porte le détonateur (12, 13) et est monté dans le boîtier (6) tubulaire de la fusée détonatrice, de manière à se déplacer dans le sens axial, sous l'effet de la pression gazeuse produite au-dessus de la charge fulminante (11) pyrotechnique, par suite de la combustion de ladite charge, ce qui fait passer le détonateur (12, 13) de la position de sécurité à la position d'amorce. En position de sécurité, le support tubulaire (10) intérieur est solidarisé par liaison de forme (21/22; 23/24) ou par liaison de matière avec le boîtier (6) de la fusée détonatrice et/ou le support de capsule-amorce (7). Le déplacement du support tubulaire (10) intérieur conjointement avec le détonateur (12, 13) en position d'amorce intervient après désolidarisation ou destruction de l'assemblage par liaison de forme ou de matière, sous l'effet de la force exercée par la pression gazeuse produite au-dessus de la charge fulminante (11) pyrotechnique, par suite de la combustion de ladite charge.
PCT/EP1996/004870 1995-11-08 1996-11-07 Fusee detonatrice, notamment pour grenades WO1997017587A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT183795 1995-11-08
ATA1837/95 1995-11-08

Publications (1)

Publication Number Publication Date
WO1997017587A1 true WO1997017587A1 (fr) 1997-05-15

Family

ID=3522093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/004870 WO1997017587A1 (fr) 1995-11-08 1996-11-07 Fusee detonatrice, notamment pour grenades

Country Status (1)

Country Link
WO (1) WO1997017587A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1094293A1 (fr) * 1999-10-18 2001-04-25 Forsvarets Forskingsinstitutt Avdeling for Vapen op Materiell Goupille de sécurité pour grenades à main
RU2778701C1 (ru) * 2021-12-09 2022-08-23 Акционерное общество "Федеральный научно-производственный центр "Научно-исследовательский институт прикладной химии" Запал к ручной гранате нелетального действия

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1009204A (fr) * 1948-05-26 1952-05-27 Perfectionnements aux dispositifs de percussion à retard pour les allumeurs et détonateurs automatiques ou commandés
FR2142632A1 (fr) * 1971-06-22 1973-02-02 Lacroix
GB2026656A (en) * 1978-07-27 1980-02-06 Redon Trust Device actuated electrically to trigger a mechanical percussion detonator
FR2437607A1 (fr) * 1978-09-26 1980-04-25 France Etat Bouchon allumeur a retard, a securite de stockage
DE3033060A1 (de) * 1980-09-03 1982-04-01 Dynamit Nobel Ag, 5210 Troisdorf Aufschlagzuender
FR2500619A1 (fr) * 1981-02-20 1982-08-27 France Etat Bouchon allumeur pour grenade a temporisateur pyrotechnique
FR2557969A1 (fr) * 1984-01-11 1985-07-12 France Etat Armement Dispositif de freinage d'un mobile pyrotechnique et application a une fusee d'ogive d'obus
EP0554149A1 (fr) * 1992-01-29 1993-08-04 Ruggieri Bouchon allumeur
WO1994025819A1 (fr) * 1993-04-29 1994-11-10 Assman, Hans Fusee, notamment pour grenades a main
EP0687888A1 (fr) * 1994-06-16 1995-12-20 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Dispositif de mise à feu d'une charge pyrotechnique du type bouchon allumeur notamment pour grenade à main ayant trois modes de fonctionnement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1009204A (fr) * 1948-05-26 1952-05-27 Perfectionnements aux dispositifs de percussion à retard pour les allumeurs et détonateurs automatiques ou commandés
FR2142632A1 (fr) * 1971-06-22 1973-02-02 Lacroix
GB2026656A (en) * 1978-07-27 1980-02-06 Redon Trust Device actuated electrically to trigger a mechanical percussion detonator
FR2437607A1 (fr) * 1978-09-26 1980-04-25 France Etat Bouchon allumeur a retard, a securite de stockage
DE3033060A1 (de) * 1980-09-03 1982-04-01 Dynamit Nobel Ag, 5210 Troisdorf Aufschlagzuender
FR2500619A1 (fr) * 1981-02-20 1982-08-27 France Etat Bouchon allumeur pour grenade a temporisateur pyrotechnique
FR2557969A1 (fr) * 1984-01-11 1985-07-12 France Etat Armement Dispositif de freinage d'un mobile pyrotechnique et application a une fusee d'ogive d'obus
EP0554149A1 (fr) * 1992-01-29 1993-08-04 Ruggieri Bouchon allumeur
WO1994025819A1 (fr) * 1993-04-29 1994-11-10 Assman, Hans Fusee, notamment pour grenades a main
EP0687888A1 (fr) * 1994-06-16 1995-12-20 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Dispositif de mise à feu d'une charge pyrotechnique du type bouchon allumeur notamment pour grenade à main ayant trois modes de fonctionnement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1094293A1 (fr) * 1999-10-18 2001-04-25 Forsvarets Forskingsinstitutt Avdeling for Vapen op Materiell Goupille de sécurité pour grenades à main
RU2778701C1 (ru) * 2021-12-09 2022-08-23 Акционерное общество "Федеральный научно-производственный центр "Научно-исследовательский институт прикладной химии" Запал к ручной гранате нелетального действия

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