EP0189563B1 - Fuze for a bomblet - Google Patents

Fuze for a bomblet Download PDF

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Publication number
EP0189563B1
EP0189563B1 EP85115613A EP85115613A EP0189563B1 EP 0189563 B1 EP0189563 B1 EP 0189563B1 EP 85115613 A EP85115613 A EP 85115613A EP 85115613 A EP85115613 A EP 85115613A EP 0189563 B1 EP0189563 B1 EP 0189563B1
Authority
EP
European Patent Office
Prior art keywords
bomblet
detonator
lever
fuze
respect
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
Application number
EP85115613A
Other languages
German (de)
French (fr)
Other versions
EP0189563A1 (en
Inventor
Wilhelm Fürst
Erwin Haas
Werner Rüdenauer
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0189563A1 publication Critical patent/EP0189563A1/en
Application granted granted Critical
Publication of EP0189563B1 publication Critical patent/EP0189563B1/en
Expired 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
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • F42C15/184—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a slidable carrier

Definitions

  • the invention relates to a detonator for a bomblet of an artillery grenade according to the preamble of claim 1.
  • a detonator for a parachute-delayed submunition of an artillery grenade, in which a detonator carrier which is pivotable about an axis is provided.
  • a spring rests on the detonator carrier; this tries to move the detonator carrier from the safeguard to the focus.
  • the detonator carrier is secured by a spring pin. The spring pin is unlocked by unfolding the parachute. Because of the two aforementioned spring elements, there is a risk that the igniter will not work properly due to material fatigue or breakage of the springs. This creates unwanted duds.
  • a fuse for an axially movable striker with a firing pin to ignite the detonator consists of detachable pins that fix the striker in a guide tube. The pins are only sheared off and the detonator fired when the ammunition accelerates accordingly.
  • the loads on the fuse parts of a bomblet are very high when an artillery shell is fired. Accordingly, the igniter parts should be robust and simple.
  • the invention is therefore based on the object of proposing a simple detonator for a bomblet which has two fuses which are independent of one another.
  • bomblet 2 In an artillery grenade 1, several bomblets 2 to 4 are stacked one behind the other.
  • the bomblet 2 which will be described in detail here, has an envelope 6 filled with explosives 5, the envelope 6 abutting on the front side of an envelope 7 of the bomblet 3.
  • the cover 7 completely covers part of the bomblet 2 with a detonator 8 and a folded parachute 9 with lines 13 of the bomblet 2.
  • the igniter 8 lies predominantly in a shaped charge lining 10 for an explosive charge 11 of the bomblet 3.
  • the lining 10 is fixed in the shell 7 by a ring 12.
  • the igniter 8 consists of a slide 16 which can be moved in the direction of the arrow 15.
  • the slide 16 contains a tapping-sensitive detonator 17 and has openings 18 and 19 for the piercing needle 20 of a racket 22 which is movable against spring force and for a driving lever 25.
  • the lever 25 is rotationally connected to a locking lever 26.
  • the locking lever 26 consists of spring plate and rests against the casing 7 in the prestressed state.
  • the striker 22 abuts a deformable locking washer 30.
  • the locking washer 30 is attached to a post 31 of a plate 34 crimped into a housing 33.
  • the function of the igniter can be seen from FIGS. 2 and 3.
  • the locking disk is deformed by the striker 22 according to FIG. 2 as a result of the launch acceleration, the striker 22 being moved in the direction of arrow 56.
  • the ignition needle 20 is disengaged from the slide 16.
  • the spring 21 holds the striker 22 in the position shown in FIG. 2.
  • the bomblets 2 to 4 are now separated from one another.
  • the prestressed securing lever 26 swings radially outward so that it is exposed to the flow of air, see arrow 57.
  • the air inflow force will now tear the safety lever 26 in the direction of arrow 56.
  • the securing lever 26 pushes the slide 16 into the armed position according to FIG. 3 via the driving lever 25.
  • the safety lever 26 disengages and flies away.
  • the lever 25 secures the slide by engaging a step 27.
  • the detonator 8 is now fully unlocked.
  • the striker 22 now moves in the direction of arrow 58 due to the delay and stings the detonator 17.
  • the ignition of the explosive charge 5 is thus initiated.

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

Description

Die Erfindung bezieht sich auf einen Zünder für ein Bomblet einer Artilleriegranate nach dem Oberbegriff des Anspruches 1.The invention relates to a detonator for a bomblet of an artillery grenade according to the preamble of claim 1.

Aus der französischen Patentschrift FR-A-2 140 693 ist für eine fallschirmverzögerte Submunition einer Artilleriegranate ein Zünder bekannt, bei dem ein um eine Achse schwenkbarer Detonatorträger vorgesehen ist. An dem Detonatorträger liegt einerseits eine Feder an; diese versucht den Detonatorträger aus der Sicherstellung in die Scharfstellung zu bewegen. Andererseits ist der Detonatorträger durch einen Federstift in Sicherstellung festgelegt. Entriegelt wird der Federstift durch das Entfalten des Fallschirmes. Aufgrund der beiden vorgenannten Federelemente besteht die Gefahr, daß aufgrund von Materialermüdungen oder Bruch der Federn der Zünder nicht ordnungsgemäß arbeitet. Dadurch entstehen unerwünschte Blindgänger. Eine Sicherung für ein axial bewegliches Schlagstück mit Zündstift zur Zündung des Detonators besteht aus abschwerbaren Stiften, die das Schlagstück in einem Führungsrohr festlegen. Erst bei entsprechend großer Beschleunigung der Submunition werden die Stifte abgeschert und der Detonator gezündet.From the French patent FR-A-2 140 693, a detonator is known for a parachute-delayed submunition of an artillery grenade, in which a detonator carrier which is pivotable about an axis is provided. On the one hand, a spring rests on the detonator carrier; this tries to move the detonator carrier from the safeguard to the focus. On the other hand, the detonator carrier is secured by a spring pin. The spring pin is unlocked by unfolding the parachute. Because of the two aforementioned spring elements, there is a risk that the igniter will not work properly due to material fatigue or breakage of the springs. This creates unwanted duds. A fuse for an axially movable striker with a firing pin to ignite the detonator consists of detachable pins that fix the striker in a guide tube. The pins are only sheared off and the detonator fired when the ammunition accelerates accordingly.

Aus der deutschen Offenlegungsschrift DE-A-1 912 750 ist ein Zünder bekannt, bei dem durch die beim Abschuß entstehende Beschleunigung eine Sicherungsscheibe durch ein Detonatorsperrglied verformt wird. Die Sicherungsscheibe ist als Federscheibe mit elastischen Zungen ausgebildet.From the German patent application DE-A-1 912 750 an igniter is known in which a locking washer is deformed by a detonator locking element due to the acceleration occurring during the launch. The locking washer is designed as a spring washer with elastic tongues.

Die Herstellung einer derartigen Sicherungsscheibe ist relativ aufwendig. Auch kann nicht ausgeschlossen werden, daß einzelne Zungen vorzeitig brechen.The production of such a locking washer is relatively complex. It cannot be excluded that individual tongues break prematurely.

Die Beanspruchungen von Zünderteilen eines Bomblets sind beim Abschuß einer Artilleriegranate sehr groß. Dementsprechend sollten die Zünderteile robust und einfach aufgebaut sein.The loads on the fuse parts of a bomblet are very high when an artillery shell is fired. Accordingly, the igniter parts should be robust and simple.

Der Erfindung liegt daher die Aufgabe zugrunde, einen einfachen Zünder für ein Bomblet vorzuschlagen, der zwei voneinander unabhängige Sicherungen aufweist.The invention is therefore based on the object of proposing a simple detonator for a bomblet which has two fuses which are independent of one another.

Die Neuerung löst diese Aufgabe entsprechend den kennzeichnenden Merkmalen des Patentanspruches.The innovation solves this problem in accordance with the characterizing features of the claim.

Wesentlich führ die Neuerung ist, daß der Verband der Bomblets untereinander und die Luftanströmung am Sicherungshebel die zwei voneinander unabhängigen Entsicherungskriterien darstellen. Hierzu werden einfache Mittel eingesetzt.What is essential for the innovation is that the association of the bomblets with each other and the air flow at the safety lever are the two independent safety criteria. Simple means are used for this.

Für die Zündung des Bomblets ist es erforderlich, daß es sich von dem benachbarten Bomblet gelöst hat und einen entsprechenden Energieinhalt aufweist, der dann zur Entsicherung - mittels der Luftanströmung an dem Sicherungshebel - ausgenützt wird.For the ignition of the bomblet, it is necessary that it has detached from the neighboring bomblet and has a corresponding energy content, which is then used for unlocking - by means of the air flow at the safety lever.

Wesentlich hierbei ist, daß zur Scharfstellung des Detonators nur die Bewegungsenergie des in der Luftströmung liegenden Sicherungshebel verwendet wird. Zum unmittelbaren Antrieb des Schiebers ist also keine gespeicherte Energie in Form einer vorgespannten Antriebsfeder nötig.It is essential here that only the kinetic energy of the safety lever lying in the air flow is used to focus the detonator. No stored energy in the form of a pretensioned drive spring is therefore necessary for the direct drive of the slide.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt. Es zeigen:

  • Fig. 1 Bomblet im Verband in einer Artilleriegranate;
  • Fig. 2,
  • Fig. 3 zwei verschiedene Bewegungsphasen der Anordnung nach Fig. 1;
Embodiments of the invention are shown in the drawing. Show it:
  • Fig. 1 Bomblet in a bandage in an artillery shell;
  • Fig. 2,
  • 3 shows two different movement phases of the arrangement according to FIG. 1;

In einer Artilleriegranate 1 sind mehrere Bomblets 2 bis 4 hintereinander gestappelt angeordnet. Das Bomblet 2, das hier im einzelnen beschrieben werden soll, weist eine mit Sprengstoff 5 gefüllte Hülle 6 auf, wobei die Hülle 6 stirnseitig an einer Hülle 7 des Bomblets 3 anliegt.In an artillery grenade 1, several bomblets 2 to 4 are stacked one behind the other. The bomblet 2, which will be described in detail here, has an envelope 6 filled with explosives 5, the envelope 6 abutting on the front side of an envelope 7 of the bomblet 3.

Die Hülle 7 umhüllt einen Teil des Bomblets 2 mit einen Zünder 8 sowie einen gefalteten Fallschirm 9 mit Leinen 13 des Bomblets 2 vollständig.The cover 7 completely covers part of the bomblet 2 with a detonator 8 and a folded parachute 9 with lines 13 of the bomblet 2.

Der Zünder 8 liegt überwiegend in einer Hohlladungsauskleidung 10 für eine Sprengladung 11 des Bomblets 3. Die Auskleidung 10 ist durch einen Ring 12 in der Hülle 7 fixiert.The igniter 8 lies predominantly in a shaped charge lining 10 for an explosive charge 11 of the bomblet 3. The lining 10 is fixed in the shell 7 by a ring 12.

Der Zünder 8 besteht aus einem in Pfeilrichtung 15 bewegbaren Schieber 16. Der Schieber 16 enthält einen anstichempfindlichen Detonator 17 und weist Öffnungen 18 und 19 für die Anstichnadel 20 eines gegen Federkraft beweglichen Schlägers 22 und für einen Mitnehmerhebel 25 auf.The igniter 8 consists of a slide 16 which can be moved in the direction of the arrow 15. The slide 16 contains a tapping-sensitive detonator 17 and has openings 18 and 19 for the piercing needle 20 of a racket 22 which is movable against spring force and for a driving lever 25.

Der Hebel 25 ist mit einem Sicherungshebel 26 drehschlüssig verbunden.The lever 25 is rotationally connected to a locking lever 26.

Der Sicherungshebel 26 besteht aus Federblech und liegt in vorgespanntem Zustand an der Hülle 7 an.The locking lever 26 consists of spring plate and rests against the casing 7 in the prestressed state.

Der Schläger 22 liegt an einer verformbaren Sicherungsscheibe 30 an. Die Sicherungsscheibe 30 ist an einem Pfosten 31 einer, in ein Gehäuse 33 eingebördelten Platte 34 befestigt.The striker 22 abuts a deformable locking washer 30. The locking washer 30 is attached to a post 31 of a plate 34 crimped into a housing 33.

Die Funktion des Zünders ist aus den Figuren 2 und 3 ersichtlich. Beim Abschuß des Artilleriegeschosses 1 aus einer nicht gezeigten Waffe wird durch die Abschußbeschleunigung die Sicherungsscheibe vom Schläger 22 gemäß Fig. 2 verformt, wobei der Schläger 22 in Pfeilrichtung 56 bewegt wird. Dabei gerät die Zündnadel 20 außer Eingriff mit dem Schieber 16. Die Feder 21 hält den Schläger 22 in der in Fig. 2 gezeigten Stellung.The function of the igniter can be seen from FIGS. 2 and 3. When the artillery projectile 1 is fired from a weapon (not shown), the locking disk is deformed by the striker 22 according to FIG. 2 as a result of the launch acceleration, the striker 22 being moved in the direction of arrow 56. The ignition needle 20 is disengaged from the slide 16. The spring 21 holds the striker 22 in the position shown in FIG. 2.

Es folgt nun der Trennvorgang der Bomblets 2 bis 4 untereinander. Wenn sich die Bomblets 2 und 3 voneinander gelöst haben, schwenkt der vorgespannte Sicherungshebel 26 radial nach außen, so daß dieser der Luftanströmung, siehe Pfeil 57, ausgesetzt ist. Die Luftanströmkraft wird nun den Sicherungshebel 26 in Pfeilrichtung 56 reißen. Der Sicherungshebel 26 schiebt über den Mitnehmerhebel 25 den Schieber 16 in Scharfstellung nach Fig. 3.The bomblets 2 to 4 are now separated from one another. When the bomblets 2 and 3 have separated from one another, the prestressed securing lever 26 swings radially outward so that it is exposed to the flow of air, see arrow 57. The air inflow force will now tear the safety lever 26 in the direction of arrow 56. The securing lever 26 pushes the slide 16 into the armed position according to FIG. 3 via the driving lever 25.

Wenn der Schieber 16 in Scharfstellung steht, klinkt der Sicherungshebel 26 aus und fliegt weg. Der Hebel 25 sichert den Schieber durch Eingriff in eine Stufe 27.When the slider 16 is in the arming position, the safety lever 26 disengages and flies away. The lever 25 secures the slide by engaging a step 27.

Der Zünder 8 ist nun voll entsichert. Beim Zielaufschlag bewegt sich nun der Schläger 22 durch die Verzögerung in Pfeilrichtung 58 und sticht den Detonator 17 an. Damit wird die Zündung der Sprengladung 5 eingeleitet.The detonator 8 is now fully unlocked. When striking the target, the striker 22 now moves in the direction of arrow 58 due to the delay and stings the detonator 17. The ignition of the explosive charge 5 is thus initiated.

Claims (1)

1. A fuze for a bomblet (2) of an artillery shell with impact fuze (8), consisting of a percussion piece (22) with firing pin (20) and a detonator (17), in which respect the detonator (17) is arranged in a part (16) which is movable out of the safe position into the live position, and in which respect the percussion piece (22) is secured in the safe position by means (30) and these through a shock stressing unlock the percussion piece (22), characterised in that the part is designed as a slider (16) with an aperture (19) for an entrainment lever (25) which engages into this aperture and which is connected in entrainment- locking manner to a safety lever (26) consisting of spring plate, in which respect the safety lever (26) butts in resiliently biassed manner against the inner wall (7) of a further bomblet (3), and the percussion piece (22) is secured between the slider (16) and a safety disc (30) which is deformable through the firing acceleration of the artillery shell (1).
EP85115613A 1984-12-19 1985-12-07 Fuze for a bomblet Expired EP0189563B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8437159U 1984-12-19
DE8437159U DE8437159U1 (en) 1984-12-19 1984-12-19 Detonator for a bomblet

Publications (2)

Publication Number Publication Date
EP0189563A1 EP0189563A1 (en) 1986-08-06
EP0189563B1 true EP0189563B1 (en) 1989-03-29

Family

ID=6773919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115613A Expired EP0189563B1 (en) 1984-12-19 1985-12-07 Fuze for a bomblet

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US (1) US4658725A (en)
EP (1) EP0189563B1 (en)
DE (2) DE8437159U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL81198A0 (en) * 1987-01-08 1987-08-31 Israel State Safetied demolition charge fuse
EP0573328B1 (en) * 1992-06-02 1997-10-29 GIAT Industries Self-destruction system for submunition by chemical etching
FR2691799B1 (en) * 1992-06-02 1995-08-11 Giat Ind Sa AMMUNITION IN PARTICULAR SUB-AMMUNITION FOR EJECTING A CARRIER PROJECTILE.
CN102967181B (en) * 2012-11-29 2015-03-04 中国人民解放军济南军区72465部队 Accurate fuse transferring powder box structure
FR3039267B1 (en) * 2015-07-24 2017-07-14 Nexter Munitions SAFETY AND ARMING DEVICE FOR AN OGIVE ROCKET AND ROCKER COMPRISING SUCH A DEVICE
SE540780C2 (en) * 2016-04-06 2018-11-06 Bae Systems Bofors Ab Divisible grenade with parachute

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392672A (en) * 1967-05-29 1968-07-16 Navy Usa Flare lighter
US3532057A (en) * 1968-04-23 1970-10-06 Us Navy Underwater explosive firing mechanism
CA922163A (en) * 1969-03-13 1973-03-06 B. Arnell Anders Fuse with primer safety comprising a rotor
FR2140693A5 (en) * 1969-12-30 1973-01-19 Societe D'etudes,De Realisations Et D'applications Techniques MOTHER PROJECTILE WITH ELEMENTARY LOADS WITH AERODYNAMIC DEVICES
US3744424A (en) * 1970-08-05 1973-07-10 Ministry Of Defense Device for providing an indication of the distance travelled by an object under conditions of acceleration
US3962974A (en) * 1973-01-04 1976-06-15 The United States Of America As Represented By The Secretary Of The Navy Pressure-armed ordnance fuze
DE2523644A1 (en) * 1975-05-28 1976-12-09 Diehl Fa Acceleration dependent safety plate for projectile fuse - has radial spokes which fail for releasing fuse blocking pin
DE3045521A1 (en) * 1980-12-03 1982-07-01 Dynamit Nobel Ag, 5210 Troisdorf Warhead for releasing multiple charges - has each stack of charges swung outwards by spring after ejection of nose cone
DE3111907A1 (en) * 1981-03-26 1982-10-07 Dynamit Nobel Ag, 5210 Troisdorf METHOD FOR DISTRIBUTING SUBMUNITION
US4393780A (en) * 1981-08-17 1983-07-19 The United States Of America As Represented By The Secretary Of The Army Omni directional fuze
US4455940A (en) * 1982-06-28 1984-06-26 The United States Of America As Represented By The Secretary Of The Army Random time delay fuze

Also Published As

Publication number Publication date
DE8437159U1 (en) 1986-04-10
EP0189563A1 (en) 1986-08-06
DE3569152D1 (en) 1989-05-03
US4658725A (en) 1987-04-21

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