EP3864365B1 - Anzündeinheit mit einstellbarer verzögerungszeit - Google Patents

Anzündeinheit mit einstellbarer verzögerungszeit Download PDF

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Publication number
EP3864365B1
EP3864365B1 EP19786298.0A EP19786298A EP3864365B1 EP 3864365 B1 EP3864365 B1 EP 3864365B1 EP 19786298 A EP19786298 A EP 19786298A EP 3864365 B1 EP3864365 B1 EP 3864365B1
Authority
EP
European Patent Office
Prior art keywords
delay
igniter
igniter unit
relief bore
delay time
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
EP19786298.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3864365A1 (de
Inventor
Dirk Cegiel
Ernest Schulz
Julia Strenger
Frank Habel
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
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Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP3864365A1 publication Critical patent/EP3864365A1/de
Application granted granted Critical
Publication of EP3864365B1 publication Critical patent/EP3864365B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/20—Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable ; Blow-out panels; Venting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/16—Pyrotechnic delay initiators
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • 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 an ignition unit with an adjustable delay time.
  • the delay time can be permanently defined or set individually and depending on the situation on site.
  • the invention relates to an adjustable delay time for an irritation body, a hand grenade, etc. with the possibility of individual adjustment and situation-dependent or situation-related adaptation of the delay time, and thus the effect of the effective masses on site.
  • Effective masses include bangs, flashes, noises (e.g. whistle), etc., i.e. so-called shock effects, as well as explosives.
  • Irritation bodies of this type are used for non-lethal defense against people and are also used to support police operations. They are similar to hand grenades, which are usually manually detonated and then discarded, but should not fragment. Hand grenades often have a lethal background.
  • the DE 199 44 486 C2 discloses an irritation body for manual ignition and ejection with a cylindrical container, which has a plurality of compartments running parallel to the central axis of the container, which can accommodate effect charges.
  • the effect charges are ignited with a manually operated ignition device on one side of the cylindrical container. After ignition, all the effect charges in the container are successively ignited in chronological order, ie with a time delay, and fired radially outwards.
  • the one cited in this document DE 92 13 375 U1 describes an irritation body that provides charge containers for delay times in the compartments to accommodate the respective delay and effect charge. Through this delay charges with different delay times, the effect charges are then ignited sequentially by these.
  • the US 3,439,614A discloses an adjustable time fuze and propellant assembly and relates to a variable time delay propellant ejector assembly.
  • an adjustable time fuze and propellant assembly which can be incorporated into a grenade-type launcher is disclosed.
  • the timer can be set by an operator prior to use.
  • the assembly is seated in a well and includes a selector, a propellant housing and a delay tube.
  • the selector and delay tube form a unit which is angularly movable relative to the cartridge case through a range of angular movements to selectively position the delay tube with a link fuze provided in the body of the cartridge case.
  • Two or more communication ports are provided in the wall of the delay tube for establishing communication between the delay mixture and an igniter located in a longitudinal igniter slot.
  • the connection openings are filled with an igniter mixture, which serves to ensure ignition of the igniter.
  • the WO 2009/151702 A1 discloses a selectable delay mechanism for a pyrotechnic munition that allows its use in different operational regimes.
  • the delay times can be physically selected by an operator prior to deployment of the munition.
  • the delay mechanism includes an igniter core positioned within a switch sleeve.
  • the igniter core includes a number of openings in the lower portion that extend longitudinally along a centerline of the lower portion.
  • the delay time is set by turning the igniter core in the index sleeve.
  • a delay composition is contained in the igniter core. As the igniter core rotates in the index sleeve, a rotational force pushes the index ring up and out of an index groove. In each index position, an opening is aligned in both the igniter core and the index sleeve. The farther the ports are from the initiation of delay composition, the longer the delay.
  • the object of the invention is to show a possibility with which an adaptation of the delay or delay time can be achieved in particular on site.
  • the invention is based on the idea of setting the delay time (Vz) in such a way that the delay charge or the delay set burns off normally or for a long time. This idea is based on the knowledge that a pyrotechnic charge that burns without pressure burns more slowly than one that is under pressure.
  • a pyrotechnic delay charge with a burning speed of max. 5mm/sec. known is used in a delay element for the seconds range, with a sleeve in which an ignition set and a firing device are also arranged.
  • the delay set has a firing bore. Together with the case, the ignition charge and the delay charge with the firing bore form a pyrotechnic delay element.
  • the firing bore is operatively connected to an ejection charge via a further bore in the base and a further bore in the headpiece.
  • the DE 10 2012 014 150 A1 discloses a delay element for an ammunition.
  • This consists of a tube, a sleeve, a preload and a chemical delay set placed in the tube.
  • the tube has an axial slit over a portion of its length and is mounted for axial displacement in the sleeve.
  • a narrow annular surface of the case covers the end of the slot on the firing side so that the priming charge does not come into contact with the delaying charge in the tube's slot. This position means that the maximum delay time is used.
  • a so-called relief bore is provided, which can set an unpressurized state in the ignition housing.
  • This relief bore is therefore preferably provided in the ignition housing.
  • the relief bore can be closed with a means such as a pin Splint or the like, done in the relief hole, which can be removed from this to open the relief hole.
  • the invention relates to an ignition unit with an adjustable delay time.
  • the delay time can be permanently defined or set individually and depending on the situation on site.
  • the invention relates to an adjustable delay time for an irritation body, a hand grenade, etc. with the possibility of individual adjustment and situation-dependent or situation-related adaptation of the delay time and the associated effect of the effective masses on site.
  • the opening of the relief bore if this is located in the igniter housing or igniter head, can also be carried out by slightly shifting the igniter head upwards relative to the housing (igniter housing). This allows the combustion gases to escape from the deceleration section (Vz section).
  • a means such as a pin
  • it is envisaged that it can be pulled or pushed to uncover the relief hole. Twisting a contour pin as a means is another of many ways to open or close the relief bore. However, the proposed options should be designed in such a way that the relief bore can also be closed again by the means.
  • the adjustable delay time can be designed simply and preferably in two freely selectable variants. Delay times of e.g. 0.5s or 1.0s, 1.0s or 1.5s etc. can be set here. There are other options.
  • the adjustment option is realized in that two different delay times Vz can be set via a relief hole.
  • a relief bore is provided in the delay section, preferably in the fuse head, which can be closed or opened.
  • the only figure shows an ignition unit 1, here an igniter head, a known irritation body not shown in detail.
  • This figure shows the igniter head 1' in a view in which a rocker arm 3 is to the left of the igniter head 1' and in a sectional view in which the rocker arm 3 is to the right of it.
  • the rocker arm 3 is secured by a cotter pin 4 in a known manner and keeps a spring-loaded firing pin 17 or striker/fuze (a detonator), ie an object with explosives, from striking a primer 18 .
  • the detonator head 1' has a relief bore 15 in a delay section 24, which can be released by a further cotter pin, pin 16 or the like.
  • the relief bore 15 is located in the delay section 24 (channel) and this is preferably within the fuse head 1'.
  • the irritation body is secured by the fuses 20.
  • the fuse 20 is pressed into the gap 22, for example, during assembly.
  • this safety device 20 prevents the detonator 17 from accidentally hitting the primer cap 18 through the tab 23 protruding laterally into the detonator head 1'.
  • This additional safety device 20 is only removed directly before use. It therefore also prevents any manipulation of the Vz adjustment and the cotter pin 4 (e.g. rotary cotter pin). Only after the fuse 20 has been removed does a non-illustrated pressure fuse release and release the cotter pin 4 .
  • the cotter pin 16 can remain in the relief bore 15 or be pulled out of it.
  • the relief bore 15 is open, the pyrotechnic delay charge 12 burns without pressure and therefore more slowly than under pressure. This achieves a longer Vz compared to a closed relief bore 15. If the relief bore 15 remains closed, however, the pyrotechnic delay charge 12 burns up as originally set by means of the quantity of the delay charge, i.e. normally.
  • this exemplary embodiment relates to an irritation body.
  • the use of the inventive idea of simply setting the delay time is not limited to this use.
  • An application in a hand grenade is also conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Lowering Means (AREA)
  • Air Bags (AREA)
  • Catching Or Destruction (AREA)
EP19786298.0A 2018-10-08 2019-10-07 Anzündeinheit mit einstellbarer verzögerungszeit Active EP3864365B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018124363.4A DE102018124363B4 (de) 2018-10-08 2018-10-08 Anzündeinheit mit einstellbarer Verzögerungszeit
PCT/EP2019/077102 WO2020074452A1 (de) 2018-10-08 2019-10-07 Anzündeinheit mit einstellbarer verzögerungszeit

Publications (2)

Publication Number Publication Date
EP3864365A1 EP3864365A1 (de) 2021-08-18
EP3864365B1 true EP3864365B1 (de) 2022-11-30

Family

ID=68208289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19786298.0A Active EP3864365B1 (de) 2018-10-08 2019-10-07 Anzündeinheit mit einstellbarer verzögerungszeit

Country Status (7)

Country Link
US (1) US11835326B2 (pl)
EP (1) EP3864365B1 (pl)
AU (1) AU2019358117B2 (pl)
CA (1) CA3112896A1 (pl)
DE (1) DE102018124363B4 (pl)
PL (1) PL3864365T3 (pl)
WO (1) WO2020074452A1 (pl)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439614A (en) * 1965-09-24 1969-04-22 Aai Corp Variable combustible delay arrangement
CH512406A (de) * 1968-11-29 1971-09-15 Oerlikon Buehrle Ag Pyrotechnisches Verzögerungselement
US3830158A (en) * 1973-03-01 1974-08-20 Us Army Initiator assembly
DE9213375U1 (pl) 1992-10-05 1992-12-17 Nico Pyrotechnik Hanns-Juergen Diederichs Gmbh & Co Kg, 2077 Trittau, De
AT403410B (de) * 1994-01-31 1998-02-25 Oregon Ets Patentverwertung Zünder für eine granate
DE19944486C2 (de) 1999-09-16 2003-06-26 Nico Pyrotechnik Irritationskörper
US20090235838A1 (en) 2008-03-19 2009-09-24 Hultman John A Selectable delay mechanism for pyrotechnic munitions
DE102012014150A1 (de) * 2012-07-18 2014-01-23 Rheinmetall Waffe Munition Gmbh Druckgesteuertes Verzögerungselement sowie Munition
US9329010B1 (en) * 2013-11-13 2016-05-03 The United States Of America As Represented By The Secretary Of The Army Water-lined munition container
DE102017108938B4 (de) 2017-04-26 2023-05-17 Rheinmetall Waffe Munition Gmbh Irritationskörper mit Mitteln zur Einstellung einer Wirkleistung

Also Published As

Publication number Publication date
WO2020074452A1 (de) 2020-04-16
AU2019358117B2 (en) 2022-08-04
DE102018124363A1 (de) 2020-04-09
DE102018124363B4 (de) 2021-06-02
CA3112896A1 (en) 2020-04-16
US20210389105A1 (en) 2021-12-16
EP3864365A1 (de) 2021-08-18
PL3864365T3 (pl) 2023-05-02
US11835326B2 (en) 2023-12-05
AU2019358117A1 (en) 2021-04-08

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