EP1370825B1 - Dispositif d'allumage dote d'un dispositif de securite, destine a un projectile devant etre tire d'un tube avec un moment angulaire - Google Patents

Dispositif d'allumage dote d'un dispositif de securite, destine a un projectile devant etre tire d'un tube avec un moment angulaire Download PDF

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Publication number
EP1370825B1
EP1370825B1 EP02727213A EP02727213A EP1370825B1 EP 1370825 B1 EP1370825 B1 EP 1370825B1 EP 02727213 A EP02727213 A EP 02727213A EP 02727213 A EP02727213 A EP 02727213A EP 1370825 B1 EP1370825 B1 EP 1370825B1
Authority
EP
European Patent Office
Prior art keywords
projectile
disk
central portion
igniter according
shaped element
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
EP02727213A
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German (de)
English (en)
Other versions
EP1370825A1 (fr
Inventor
Detlef Haeselich
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP1370825A1 publication Critical patent/EP1370825A1/fr
Application granted granted Critical
Publication of EP1370825B1 publication Critical patent/EP1370825B1/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
    • 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
    • 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
    • F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge

Definitions

  • the invention relates to an igniter for a projectile to be shot from a pipe with a swirl according to the preamble of claim 1.
  • Such projectiles that have a detonating z. B. from several pyrotechnic charges to trigger an active effect, should be equipped with a safety device that interrupts the ignition chain in a first position and merges with the firing of the projectile by its initial acceleration and its spin from this first position in a release the ignition priming second position , This rules out that the ignition chain ignites, although the floor is at rest, z. B. is still in progress.
  • an igniter for projectiles which is a safety device with disk-shaped elements, for. B. has a plastically deformable plate. This plate is arranged between a body containing the primer and the part of the projectile which contains an opening leading to the charge to be ignited. With this arrangement, it is intended to prevent the explosive charge of the projectile from being ignited in the event of an unwanted ignition of the squib in the securing position of the body receiving it. In an unwanted ignition of the squib then the hot explosive gases under high pressure on the plastically deformable plate, whereby this deformed and firmly pressed into the joints between the support for the squib and the receiving parts, so that the hot explosive gases to reach the opening of the explosive charge.
  • Such projectiles are also used as so-called effect ammunition, z.
  • This effect ammunition is derived from the sharp ammunition, z. B. a cartridge ammunition with a caliber of 40 mm.
  • effect effects z.
  • CS tear gas, fog, star-generating charges, lightning charges, etc. applied.
  • This effect ammunition has an impact fuze, which ignites the effect on impact. If this detonator does not work, it must be ensured that the effect is nevertheless triggered or self-decomposed at least after a certain time, in order to allow the safe cleaning of the effect ammunition.
  • an additional safety fuse is provided with a detonating chain, which consists of at least one ignited at the launch of the effect projectile launcher and at least one other charge, in particular a delay charge on the after their burning the actual effective charge z.
  • a detonating chain which consists of at least one ignited at the launch of the effect projectile launcher and at least one other charge, in particular a delay charge on the after their burning the actual effective charge z.
  • Such effect ammunition is usually fired from short-barreled weapons or from short drum magazines.
  • magazine weapons the magazine is usually covered by a disc that releases only the actually fired cartridge, whereas all other magazine runs are covered by the disc.
  • the delay charge for the safety fuse is ignited anyway, for example, by a too weak propellant charge or solely by the primer cap.
  • the effect ammunition now does not leave the barrel of the firearm, be it a normal barrel weapon or a magazine weapon, the active area is triggered after the given delay time of about 4 seconds. This can be for bystanders and for the shooter himself be associated with a high risk of injury, especially if a magazine weapon is used.
  • the magazine drum although the bullet does not leave the magazine, further rotated by one point, so now the magazine barrel, in which cartridge ammunition with burning retardation ignition chain is located, is closed at the front. Is then released after the predetermined delay time of the effect effect, such. As a tear gas released, it can practically only escape backwards towards the shooter, so that a high risk of injury is given for this.
  • a safety device that interrupts the ignition chain in a first position and the launch of the projectile by its initial acceleration and its spin from this first position in a release the ignition second Position passes.
  • security devices are known for projectile fuze in a variety of variants.
  • the invention has for its object to provide such a safety device for a projectile of the type in question, which is simple in design, inexpensive to manufacture and reliably ensures that the effect is actually ignited only when the projectile associated with a launch initial acceleration and experienced the twist.
  • the securing device has a disc-shaped element with a central region and an edge region surrounding it. Only the central area interrupts the ignition chain and is mechanically supported by a holding device and on Place held. The central region and the edge region are connected to one another via a predetermined breaking point which ruptures during the initial acceleration of the projectile.
  • a collecting space is provided which receives the separated at the initial acceleration of the projectile from the central region at the predetermined breaking point edge region and then removed by the spin of the projectile from the ignition chain central region.
  • Such a fuse device for a detonator is very simple and inexpensive to manufacture, since the safety device z. B. is a suitably prepared simple plastic disc.
  • the initial acceleration acts both on the central area and on the edge area. However, since only the central area is supported, this initial acceleration shears off the edge area at the predetermined breaking point from the central area and falls into the collecting space located behind the edge area in the direction of flight of the projectile. This has a thickness which is at least twice the thickness of the edge region, so that when the edge region is located in the receiving space, it is removed from the plane of the central region. The swirl now acts on this central area, so that this central area is more or less removed from the detonating chain, thereby releasing it.
  • the swirl and swirl acceleration are usually so large that the central region is eccentric to the spin axis of the projectile solely by the remains of the predetermined breaking point with its center of gravity, so that the centrifugal forces remove the central region from the ignition chain. It is of course possible to intentionally place the center of gravity of the central region eccentrically to the spin axis of the projectile.
  • the breaking point can z. B. be formed by a reduction in the thickness of the material of the disc-shaped element in the boundary region between the central region and edge region. Furthermore, central area and edge area can be connected to one another via webs. Another possibility is to form the central area and edge area each as individual parts and this by a connecting element, for. B. to connect a self-adhesive film together, which forms the predetermined breaking point.
  • FIG. 1 an effect ammunition with a cartridge case 2 and a projectile 3 inserted therein is shown partially cut.
  • a primer cap 4 is arranged, with one in a Cartridge 5 located propellant 6 is lit.
  • the cartridge 5 in this case has overflow openings, which open into a pressure chamber 8 between the cartridge case 2 and projectile 3.
  • the projectile 3 has in its bow on a cargo space 10, in which an effect charge, z.
  • an effect charge z.
  • CS tear gas or the like As CS tear gas or the like is located, which can be triggered pyrotechnic. This is usually done by an impact igniter 11, which is indicated here merely as a switch and which ignites a pyrotechnic ignition charge 12 when the projectile impacts, which in turn triggers the active charge present in the cargo space 10.
  • a delay charge 13 is ignited by the propellant gases, which, however, is divided into two parts 13a and 13b.
  • the partial charges 13a and 13b are separated by a Studentszündspalt 14.
  • the central area 16 is surrounded by a holding device surrounding the delay charge 13a, e.g. B. a pedestal 19 supported.
  • the edge region 17 has a greater thickness than the central region 16, wherein the step between the central region 16 and the edge region 17 is given essentially by the predetermined breaking point 18.
  • the disc 15 abuts with this step on the base 19, whereby the disc 15 is held in its radial position.
  • the disc 15 is also located with its seen in the direction of flight of the projectile 3 top on the ceiling of a Collection space 21, in which the disc 15 is held laterally with little play.
  • This collecting space 21 has a thickness which, viewed in the direction of flight of the projectile 3, corresponds to at least twice the thickness of the edge region 17.
  • the delay charge 13a may comprise in a known manner a conical recess through which the detonation waves within the delay charge 13a are focused and centered on the delay charge 13b and light them.
  • the ignition of the propellant charge 6 be incomplete and yet the delay charge 13 are ignited, ie that the projectile does not escape from the barrel of the weapon, then no initial acceleration occurs or a spin acceleration, so that the disc 15 remains in place and at the end of the burnup of the delay charge 13a prevents ignition of the delay charge 13b. This does not ignite the active charge in the cargo space 10 and the projectile 3 can be removed without risk from the barrel of the weapon.
  • the delay charge 13a ignites the second delay charge 13b of the delay charge 13. Should then the impact fuze 11 does not work at the impact of the projectile 3 and thus also the active charge in the cargo space 10 are not ignited, this is ignited after the burnup of the delay charge 13b.
  • FIG. 2 is the detonator according to FIG. 1 shown with a small modification of the disc 15.
  • the circular disk 15 in turn consists of a central region 16 and an edge region 17 surrounding it, which is separated from the central region 16 by a predetermined breaking point 18 in the form of a notch.
  • FIG. 3 how out FIG. 3 can be seen, the center of mass S of the central region 16 is located outside the longitudinal and spin axis A of the projectile.
  • the eccentric position of the center of gravity S also removes the central region 16 very quickly from the ignition chain, so that these are transferred via the delay charges 13a and 13b can ignite.
  • FIG. 4 a disc 15 is shown with a central region 16 and an edge region 17, which over several Webs 24 are connected to each other, which form the predetermined breaking point 18.
  • a disc 15 is shown, which in turn is made up of a central region 16 and an edge region 17.
  • the central region 16 and the edge region 17 are individual parts, ie in the simplest case a small circular disk or an annular disk.
  • the annular disc as edge region 17 in turn has a greater thickness than the central region 16.
  • the two individual parts 16 and 17 are connected to each other by a self-adhesive plastic film 25, which takes over the function of the predetermined breaking point 18.
  • the plastic film 25 is connected to the underside of the central region 16 and a step 26 in the edge region 17, so that when separating the edge region 17 from the central region 16 at the initial acceleration of the projectile 3, the plastic film 25 is also detached from the central region 16.
  • the central region 16 preferably again has a center of mass S eccentric to the spin axis A of the projectile 3, so that after shearing off the edge region 17, the central region 16 is quickly conveyed into the catchment space 21.
  • the plastic film 25 is formed so as to allow a strike-through between the delay charges 13a and 13b.
  • the disc 15 should be made of a material having a low specific mass, so that only a small imbalance is exerted on the projectile 3 by the recorded in the collecting space 21 small disc corresponding to the central region 16 that the trajectory of the projectile 3 not is disturbed.
  • the shape of the disc 15 are possible, for. As oblong, rectangular or square slices.
  • the base does not have to be a compact base 19, but can be replaced by z. B. several support points or support sections can be realized.
  • the predetermined breaking point 18 of the disc 15 breaks even during the initial acceleration of the projectile 3 in the launching run, so that afterwards the central region 16, which interrupts the ignition chain, is also quickly transported from the ignition chain.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Emergency Lowering Means (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Air Bags (AREA)
  • Catching Or Destruction (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (13)

  1. Amorce pour un projectile (3) à tirer avec giration depuis un canon d'arme, comportant une chaîne d'amorçage déclenchant un effet, dans laquelle est prévu un dispositif de sécurité (15, 19, 21) qui, dans une première position, interrompt la chaîne d'amorçage et, lors du tir du projectile (3) passe par son accélération initiale et sa giration dans une deuxième position libérant la chaîne d'amorçage, le dispositif de sécurité (15, 19, 21) présentant un élément en forme de disque (15) avec une zone centrale (16) et une zone de bord (17) entourant celle-ci, caractérisée en ce que seulement la zone centrale (16) interrompt la chaîne d'amorçage, en ce que la zone centrale (16) de l'élément en forme de disque (15), mais toutefois pas la zone de bord (17), est soutenue par un dispositif de retenue (19) et maintenue en place, en ce que la zone centrale (16) et la zone de bord (17) sont reliées l'une à l'autre par l'intermédiaire d'un point destiné à la rupture (18) qui se déchire à l'accélération initiale du projectile (3), et en ce qu'il est prévu autour du dispositif de retenue (19) un espace de réception (21) qui reçoit la zone de bord (17) séparée de la zone centrale (16) lors de l'accélération initiale du projectile (3) et la zone centrale (16) qui est ensuite éloignée de la chaîne d'amorçage par la giration du projectile (3).
  2. Amorce selon la revendication 1, caractérisée en ce que le dispositif de retenue (19) est un support entourant la chaîne d'amorçage, pour la zone centrale (16), et en ce que la zone de bord (17) présente un gradin qui prend appui sur le support et qui assure ainsi l'élément en forme de disque (15) dans sa première position interrompant la chaîne d'amorçage.
  3. Amorce selon l'une des revendications 1 ou 2, caractérisée en ce que la zone de bord (17) présente une épaisseur plus importante que la zone centrale (16).
  4. Amorce selon l'une des revendications 1 à 3, caractérisée en ce que l'espace de réception (21), vu en direction de vol du projectile (3), se trouve derrière la zone de bord (17) et présente une profondeur qui correspond au moins au double de l'épaisseur de la zone de bord (17).
  5. Amorce selon l'une des revendications 1 à 4, caractérisée en ce que dans la première position, le bord de l'élément en forme de disque (15) est en appui avec jeu sur les parois latérales de l'espace de réception (21).
  6. Amorce selon l'une des revendications 1 à 5, caractérisée en ce qu'il est prévu un dispositif de retenue, de préférence un dispositif de serrage, pour l'élément en forme de disque (15) dans deuxième la position dans laquelle il repose sur le fond de l'espace de réception (21).
  7. Amorce selon l'une des revendications 1 à 6, caractérisée en ce que le centre de gravité de masse (S) de la zone centrale (16) est excentré par rapport à l'axe de giration (A) du projectile (3).
  8. Amorce selon l'une des revendications 1 à 7, caractérisée en ce que l'élément en forme de disque (15) est circulaire ou rectangulaire.
  9. Amorce selon l'une des revendications 1 à 8, caractérisée en ce que l'élément en forme de disque (15) est en matière plastique.
  10. Amorce selon l'une des revendications 1 à 9, caractérisée en ce que le point destiné à la rupture (18) est formé par une réduction de l'épaisseur du matériau de l'élément en forme de disque (15).
  11. Amorce selon l'une des revendications 1 à 10, caractérisée en ce que la zone centrale (16) et la zone de bord (17) de l'élément en forme de disque (15) sont reliées l'une à l'autre par l'intermédiaire de barrettes (24) servant de point destiné à la rupture (18).
  12. Amorce selon l'une des revendications 1 à 11, caractérisée en ce que la zone centrale (16) et la zone de bord (17) sont chacune des pièces individuelles qui sont reliées entre elles par un élément de liaison formant le point destiné à la rupture (18).
  13. Amorce selon la revendication 12, caractérisée en ce que l'élément de liaison est une feuille autocollante (25).
EP02727213A 2001-03-12 2002-03-12 Dispositif d'allumage dote d'un dispositif de securite, destine a un projectile devant etre tire d'un tube avec un moment angulaire Expired - Lifetime EP1370825B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10111714 2001-03-12
DE10111714A DE10111714C1 (de) 2001-03-12 2001-03-12 Zünder für ein aus einem Rohr mit Drall abzuschießendes Geschoss
PCT/DE2002/000864 WO2002073119A1 (fr) 2001-03-12 2002-03-12 Dispositif d'allumage dote d'un dispositif de securite, destine a un projectile devant etre tire d'un tube avec un moment angulaire

Publications (2)

Publication Number Publication Date
EP1370825A1 EP1370825A1 (fr) 2003-12-17
EP1370825B1 true EP1370825B1 (fr) 2009-02-11

Family

ID=7677088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02727213A Expired - Lifetime EP1370825B1 (fr) 2001-03-12 2002-03-12 Dispositif d'allumage dote d'un dispositif de securite, destine a un projectile devant etre tire d'un tube avec un moment angulaire

Country Status (11)

Country Link
US (1) US6880464B2 (fr)
EP (1) EP1370825B1 (fr)
JP (1) JP4053428B2 (fr)
KR (1) KR20030090667A (fr)
AT (1) ATE422657T1 (fr)
AU (1) AU2002257524B2 (fr)
CA (1) CA2440731C (fr)
DE (2) DE10111714C1 (fr)
ES (1) ES2324096T3 (fr)
NO (1) NO327470B1 (fr)
WO (1) WO2002073119A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020177A1 (de) 2005-04-28 2006-11-02 Rheinmetall Waffe Munition Gmbh Wurfanlage
DE102007054777B3 (de) * 2007-11-16 2009-08-13 Junghans Microtec Gmbh Sicherungseinrichtung für einen Zünder
FI120708B (fi) * 2008-01-31 2010-01-29 Patria Weapon Systems Oy Sovitelma ammuksen tukemiseksi aseen putkeen, tukielementti ja menetelmä
US8424456B2 (en) 2009-10-05 2013-04-23 Amtec Corporation Non-dud signature training cartridge and projectile
SG181192A1 (en) 2010-11-25 2012-06-28 Advanced Material Engineering Pte Ltd A cartridged projectile
US10495425B1 (en) * 2018-10-04 2019-12-03 United States Of America, As Represented By The Secretary Of The Navy Thermoformed projectile cartridge

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB100046A (en) * 1914-04-29 1917-01-04 John Bonner Semple Improvements in Projectiles.
NL49282C (fr) * 1937-09-28
BE510153A (fr) * 1946-11-02 Energa
US3640225A (en) * 1969-06-20 1972-02-08 Honeywell Inc Fuze apparatus
US3750589A (en) * 1971-12-13 1973-08-07 Honeywell Inc Centrifugally driven spin device
SE407286B (sv) * 1975-11-07 1979-03-19 Bofors Ab Sekringsanordning
FR2349817A1 (fr) * 1976-04-29 1977-11-25 Europ Propulsion Dispositif de securite et d'armement pour l'allumage de chaines pyrotechniques
NO153441C (no) * 1980-12-11 1986-03-19 Junghans Gmbh Geb Prosjektilsikring for roterende prosjektiler.
GB2169691B (en) * 1984-12-10 1988-08-03 British Aerospace Projectiles
DE3660940D1 (en) * 1985-04-04 1988-11-17 Oerlikon Buehrle Ag Safety device for a fuze activated by the rotation of a projectile
US4699058A (en) * 1986-05-09 1987-10-13 Interdyne Service Corporation Safing and arming device and method
US4744298A (en) * 1986-05-09 1988-05-17 Dragolyoub Popovitch Safing and arming device and method
US5033382A (en) * 1987-03-25 1991-07-23 Magnavox Government And Industrial Electronics Company Piezoelectric fuse for projectile with safe and arm mechanism
US4938138A (en) * 1989-08-07 1990-07-03 Honeywell Inc. Safing and arming mechanism with creep ribbon arming delay
USH1603H (en) * 1995-11-07 1996-11-05 The United States Of America As Represented By The Secretary Of The Navy Flare with safe-and-arm ignition system

Also Published As

Publication number Publication date
WO2002073119A1 (fr) 2002-09-19
DE50213267D1 (de) 2009-03-26
KR20030090667A (ko) 2003-11-28
CA2440731C (fr) 2010-05-25
NO20033952D0 (no) 2003-09-08
ATE422657T1 (de) 2009-02-15
US20040074411A1 (en) 2004-04-22
AU2002257524B2 (en) 2006-05-18
JP2004521309A (ja) 2004-07-15
US6880464B2 (en) 2005-04-19
NO20033952L (no) 2003-09-08
DE10111714C1 (de) 2002-10-10
JP4053428B2 (ja) 2008-02-27
EP1370825A1 (fr) 2003-12-17
ES2324096T3 (es) 2009-07-30
CA2440731A1 (fr) 2002-09-19
NO327470B1 (no) 2009-07-13

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