EP0666464B1 - Fusée pour grenade - Google Patents

Fusée pour grenade Download PDF

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Publication number
EP0666464B1
EP0666464B1 EP95100276A EP95100276A EP0666464B1 EP 0666464 B1 EP0666464 B1 EP 0666464B1 EP 95100276 A EP95100276 A EP 95100276A EP 95100276 A EP95100276 A EP 95100276A EP 0666464 B1 EP0666464 B1 EP 0666464B1
Authority
EP
European Patent Office
Prior art keywords
burning
fuse
receiving passage
charge
self
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
Application number
EP95100276A
Other languages
German (de)
English (en)
Other versions
EP0666464A1 (fr
Inventor
Gottfried Koger
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.)
Oregon Etablissements fuer Patentverwertung
Original Assignee
Oregon Etablissements fuer 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 Etablissements fuer Patentverwertung filed Critical Oregon Etablissements fuer Patentverwertung
Publication of EP0666464A1 publication Critical patent/EP0666464A1/fr
Application granted granted Critical
Publication of EP0666464B1 publication Critical patent/EP0666464B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14—Double fuzes; Multiple fuzes
    • F42C9/142—Double fuzes; Multiple fuzes combined time and percussion fuzes in which the timing is caused by combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/36—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein arming is effected by combustion or fusion of an element; Arming methods using temperature gradients
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/44—Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/10—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by combustion

Definitions

  • the invention relates to a detonator for a grenade, which can be fired from a tube with a propellant charge, with an impact ignition device and with a self-dismantling device which has a receiving channel for a delay set which ignites when fired, after the combustion of which the self-dismantling can take place.
  • Such an igniter designed as a ground igniter can be found, for example, in EP-A 387 675. If the impact detonator is decelerated, self-dismantling becomes effective in that the firing pin of the impact detonator is acted upon by a gas pressure which is generated by a rapid-burning charge following the deceleration charge and which is available after breaking through a partition wall at a sufficient minimum height defined thereby.
  • the delay set is ignited by the inertia of a second striking piece, which hits a primer when fired, which burns the delay set. A distance is provided between the primer and the delay set, through which a space for the combustion gases of the delay set is formed.
  • a similar design, but as a head detonator, is shown in US Pat.
  • Detonators are also known (WO-A 87/1192 and WO-A 87/1193), in which the self-decomposition takes place directly in a second ignition chain which closes after firing by means of a transfer charge ignited by the delay set.
  • combustion gases of the delay set can escape through a relief channel after it has burned up, which is only available when the ignition chain is interrupted.
  • the invention has now set itself the task of remedying this problem and suggests that the burning-side, first end of the receiving channel is fluidly connected to an outwardly leading relief opening.
  • the combustion gases of the delay charge can escape through the relief opening, so that the actual burning time of the delay rate corresponds to the desired burning time.
  • the subsequent fast-burning charge which can be, for example, a booster charge, quickly leads to a very high gas pressure, which is sufficient in any case for the firing pin to be fired or for the ignition of a transfer charge, a detonator charge, etc., since the diameter of the relief opening is so is chosen small that the very high gas pressure is only slightly reduced.
  • a preferred embodiment of the detonator in which the receiving channel is closed on the burning side by a screw plug accessible from the housing periphery, provides that a bore in the screw plug forms the relief opening. That makes the manufacturing easier.
  • the relief opening it is also conceivable to design the relief opening at a different location, a connection channel or connection space being provided between the end of the receiving channel on the burning side and the relief opening.
  • a further preferred embodiment provides that the delay set is arranged in a tube inserted into the receiving channel, which has a ring of circumferential openings in the region of the mouth of the striking hole.
  • the placement of the deceleration set in a tube facilitates the introduction of the deceleration set, whereby thanks to the circumferentially arranged circumferential openings, it is not necessary to pay attention to a specific installation position.
  • the tube on the burning side has a bottom provided with the relief opening and formed by the locking screw.
  • the igniter according to the invention is preferably designed as a floor igniter in which the receiving channel is parallel to the floor, but the same essential features can also be realized in a design as a head igniter.
  • the fast-burning charge which is preferably also contained in the tube and is connected to the delay set at the second end on the combustion side, is preferably designed as a booster set.
  • This can be provided as a transfer charge in a direct ignition chain with a detonator charge for self-decomposition.
  • the booster set is preferably used for the rapid generation of a large amount of gas with high gas pressure, which acts on the firing pin of the impact ignition device through a connecting channel if the latter has failed.
  • a booster set to achieve a high gas pressure and the application of a displaceable firing pin is not essential to the formation of a relief opening for the rest the retardation combustion gases are bound, but can also be used for this purpose in other igniters, for example according to EP-A 387 675 or WO-A 87/1192, as a replacement for the burstable partition or in an igniter according to US Pat. No. 2,005,053 to build up pressure will.
  • the detonator which can be inserted into a grenade (not shown), in particular a 40 mm grenade, has a housing 1 with a base 2.
  • a swivel body 20 with a detonator charge 21 and an inhibitor 22 are arranged, by means of which the swirl-related swiveling of the swivel body 20 into the active position, aligned with the firing pin 16 in the center, is braked during a flight time serving to protect the casing .
  • the firing pin 16 strikes against the pivoted-in detonator charge 21 when the grenade strikes.
  • Primer 12 has a delay set 13, the burning time of which corresponds at least to the flight duration during the required fore-pipe safety, and ignites a fast-burning charge 14, in particular a booster charge.
  • the centrally located firing pin 16 is then acted upon by their gas pressure via a radial connecting channel 15.
  • the connecting channel 15 lies outside the cutting plane parallel to the bottom 2 and is in the Drawing visible because parts of the bottom 2 are shown here torn.
  • the striking piece 1 is arranged in a striking hole 3 against a spring and fixed in the rest state shown by a safety device, not shown. In the drawing, a mixed state is shown for better understanding, since when the striker position is secured and the primer 12 is not ignited, the detonator charge 21 does not lie in the extension of the striker 16, but rather in the center position in the rest position.
  • the striking hole 3 cuts axially offset a receiving channel 4, which is located off-center in a circular chord and in which a tube is arranged, which is inserted through a peripheral opening of the receiving channel 4.
  • the tube 7 has a bottom and an external thread in the area of the bottom, so that this area of the tube 7 represents a screw plug 8 of the receiving channel 4.
  • a relief opening 9 leads from the outside to the burning-side end 5 of the receiving channel 4.
  • the relief opening 9 can also be provided to the outside at any other suitable location of the igniter housing 1.
  • the mentioned connecting channel 15 leads from the second end 6 of the receiving channel 4 on the burning side, the transition between the second end 6 and the connecting channel 15 being ensured by an insert pin 17 having a recess 18.
  • a ring of circumferential openings 10 is provided, through which the ignition jet of the primer 12 strikes the burning side of the deceleration set 13 arranged in the tube 7.
  • the combustion gases of the delay set 13 are passed to the outside via the relief opening 9, so that the burning rate of the delay set 13 is not influenced by a gas pressure of the combustion gases of the delay set 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Vibration Dampers (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (5)

  1. Détonateur pour une grenade apte à être lancée à partir d'un tube à l'aide d'une charge propulsive, comportant un dispositif percutant et un dispositif d'autodestruction qui comprend un conduit de logement (4) pour une composition retardatrice (13) qui s'enflamme lors du lancement et après la mise à feu de laquelle l'autodestruction peut avoir lieu, caractérisé en ce que la première extrémité (5), située côté allumage, du conduit de logement (4) est reliée à une ouverture de décharge (9) qui mène à l'extérieur.
  2. Détonateur selon la revendication 1, dont le conduit de logement (4) est fermé, côté allumage, par une vis de fermeture (8) accessible par la circonférence de l'enveloppe, caractérisé en ce qu'un perçage prévu dans la vis de fermeture (8) définit l'ouverture de décharge (9).
  3. Détonateur selon la revendication 2, avec lequel le dispositif d'autodestruction comporte un élément percuteur (11) et une capsule-amorce (12) dans un perçage (3) qui débouche dans le conduit de logement (4), caractérisé en ce que la composition retardatrice (13) est disposée dans un tube (7) placé dans le conduit de logement (4) et pourvu, dans la zone où débouche le perçage d'élément percuteur (3), d'une couronne d'ouvertures périphériques.
  4. Détonateur selon la revendication 3, caractérisé en ce que le tube (7) présente, côté allumage, un fond pourvu de l'ouverture de décharge (9) et formée par la vis de fermeture (8).
  5. Détonateur dans lequel il est prévu, à la seconde extrémité (6) du canal de logement (4) située côté mise à feu, à la suite de la composition retardatrice (13), une charge à combustion rapide (14), et dans lequel un conduit de liaison (15) va de préférence de l'extrémité de conduit (6) située côté mise à feu au percuteur (16) du dispositif de percussion, qui est sollicité pour l'autodestruction par la pression gazeuse de la charge à combustion rapide (14), en particulier selon l'une des revendications 1 à 4, caractérisé en ce que la charge à combustion rapide (14) est conçue comme un propulseur.
EP95100276A 1994-01-31 1995-01-11 Fusée pour grenade Expired - Lifetime EP0666464B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT171/94 1994-01-31
AT0017194A AT403410B (de) 1994-01-31 1994-01-31 Zünder für eine granate

Publications (2)

Publication Number Publication Date
EP0666464A1 EP0666464A1 (fr) 1995-08-09
EP0666464B1 true EP0666464B1 (fr) 1997-12-17

Family

ID=3483462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100276A Expired - Lifetime EP0666464B1 (fr) 1994-01-31 1995-01-11 Fusée pour grenade

Country Status (3)

Country Link
EP (1) EP0666464B1 (fr)
AT (2) AT403410B (fr)
DE (1) DE59501109D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008032744B4 (de) * 2008-07-11 2010-04-01 Junghans Microtec Gmbh Zünder für ein Geschoss
DE102018124363B4 (de) 2018-10-08 2021-06-02 Rheinmetall Waffe Munition Gmbh Anzündeinheit mit einstellbarer Verzögerungszeit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005053A (en) * 1932-07-13 1935-06-18 Rheinische Metallw & Maschf Fuse for projectiles and particularly for small caliber high explosive projectiles
US3750590A (en) * 1967-10-18 1973-08-07 Us Army Fluid safety and arming system
US3945323A (en) * 1974-06-14 1976-03-23 The United States Of America As Represented By The Secretary Of The Army Impact and self-destruct fuze
DE3670536D1 (de) * 1985-08-22 1990-05-23 Oregon Ets Patentverwertung Doppelzuender fuer geschoss.
DE3740967A1 (de) * 1987-12-03 1989-06-15 Diehl Gmbh & Co Pyrotechnischer zuender fuer geschosse
AT393322B (de) * 1989-03-17 1991-09-25 Oregon Ets Patentverwertung Bodenzuender fuer eine granate

Also Published As

Publication number Publication date
EP0666464A1 (fr) 1995-08-09
DE59501109D1 (de) 1998-01-29
AT403410B (de) 1998-02-25
ATA17194A (de) 1997-06-15
ATE161325T1 (de) 1998-01-15

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