EP0144293B1 - Einrichtung zum Ausstreuen von Submunition aus drallfreien Trägergeschossen - Google Patents

Einrichtung zum Ausstreuen von Submunition aus drallfreien Trägergeschossen Download PDF

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Publication number
EP0144293B1
EP0144293B1 EP84830249A EP84830249A EP0144293B1 EP 0144293 B1 EP0144293 B1 EP 0144293B1 EP 84830249 A EP84830249 A EP 84830249A EP 84830249 A EP84830249 A EP 84830249A EP 0144293 B1 EP0144293 B1 EP 0144293B1
Authority
EP
European Patent Office
Prior art keywords
submunitions
projectile
spring
flat spring
layer
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
EP84830249A
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English (en)
French (fr)
Other versions
EP0144293A1 (de
Inventor
Rodolfo Andreetta
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.)
KNDS Ammo Italy SpA
Original Assignee
Simmel Difesa SpA
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 Simmel Difesa SpA filed Critical Simmel Difesa SpA
Priority to AT84830249T priority Critical patent/ATE37085T1/de
Publication of EP0144293A1 publication Critical patent/EP0144293A1/de
Application granted granted Critical
Publication of EP0144293B1 publication Critical patent/EP0144293B1/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
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile

Definitions

  • the present invention relates to spinless subammunition projectiles of the type of the mortar bombs or warheads, in which the submunitions are disposed in parallel layers, and more particularly to a device for the mutual drawing away of the submunitions once they have been ejected from the projectile in which they were contained.
  • DE-B-1 208 220 (Claim 1, lines 26 to 35) provides for submunitions in tubes (Abschuss- rohren 9) each of which is joined through a corrugated flexible section (10) to a center tube (2). Each tube can be spread out angularly with respect to the center tube (2) by a flat spring (12) whose action and reaction forces are applied respectively to the spreadable tubes (9) and the center tube (2).
  • the preamble of claim 1 is based on DE-B-1 208 220.
  • FR-A-2 275 748 covers the mutual drawing away of reflecting material, and the characteristics of the drawing away system are suited to this particular contents of a multitude of lightweight elements.
  • the element (11, fig. 3 and Claim 1) which causes the content to be drawn away when it is stretched out is defined as a "bande d'ejection" (Claim 1, line 9) represented, for example, by a wire (page 3, line 12), and it is not expected to be or to act as a spring. Its stretching out is not obtained by spring action but by its being pulled out of the projectile by the separation of the two parts (1 and 3) of the projectile to at least one of which the wire is attached.
  • reaction forces are partly borne by the structure consisting of the wire and the projectile part to which it is attached and by which it is taut.
  • the drawing away could also work if there were a single charge.
  • FR-A-2 196 456 provides a totally different charge spreading out system, a plurality of heads being secured at different heights to flexible bands 50 axially extended along the projectile and whose upper ends are secured to the upper part of the projectile. In their spread-out condition the heads remain fastened to the bands and to the projectile.
  • FR-A-2 101 786 provides .
  • springs 53 which in their constrained state are axially oriented and which are shown to be secured to a central structure by which the reaction forces are borne.
  • the device for drawing away the submunitions according to the invention is characterized in that it comprises at least one flat spring for each submunition layer, said spring being disposed under preloaded conditions among the submunitions of its respective layer, and being adapted to stretch out when the submunitions are ejected from the projectile thus mutually drawing away radially the submunitions from one another and further characterized in that the spring of each layer in its preloaded condition inside the projectile is oriented on a plane substantially perpendicular to the longitudinal axis of the projectile, that said spring is in contact, radially inwards, directly and only with submunitions of the layer, at least with two of them and, radially outwards, with the peripheral restraining elements of the projectile.
  • both the action and the reaction forces are directly applied by the spring to submunitions only, namely to at least two submunitions of the layer. There is not a central supporting element to provide for the reaction force. This results in an improvement in space, weight, simplicity of manufacture, assembly and cost of the projectile with respect to the prior art.
  • a submunition projectile of the spinless type, provided with the device for the mutual drawing away of the submunitions according to the invention.
  • the submunitions 2 are disposed in five layers, each layer consisting of three submunitions 2.
  • the submunitions of each layer are kept in position by three spacer elements 3, generally of plastic material shaped so as to mate the outer surface of the submunitions 2 and the inner surface of the shell of the projectile 1.
  • These elements 3 are not indispensable and anyway we will consider them as a part of the shell of the projectile 1 and not as a part of the device for the mutual drawing away of the submunitions 2.
  • a flat spring 4 Disposed between the submunitions 2 of each layer is a flat spring 4, in the preloaded state, shaped as illustrated in Fig. 1, where the spring 4 encompasses almost completely the uppermost submunitions and partially the other two lower submunitions.
  • This spring 4 is nothing but a piece of spring steel strip and has normally a constant width and thickness. It may, as well, however, for particular requirements, have a variable width and/or thickness.
  • the springs 4 are disposed normally substantially in the central portion of each layer of submunitions 2 even though it is not impossible that, in order to obtain particular effects, f.e. a spin of the submunitions, this position may be not central.
  • the spacer elements 3 While not indispensable for the operation of the device according to the invention, the spacer elements 3 have on their concave faces, turned towards the submunitions 2, grooves adapted to receive the spring 4.
  • the action of an ejection charge intervenes which is normally enclosed in the tip 5 of the projectile 1.
  • the action of this ejection charge causes the tail 6 of the projectile 1 to detach and ejects successively the various layers of submunitions 2 from the rear side of the projectile 1.
  • the spring 4 is free to act, whereby, because of the action of the spring, the various submunitions are thrown radially with respect to the trajectory of the projectile 1.
  • the first steps of the stretching out of the spring 4 and of the mutual drawing away of the three submunitions forming one layer are shown diagrammatically in Fig. 3, in which, for the sake of clearness, the longitudinal dimensions of the spring 4 have been partially altered.
  • the arrows of Fig. 3 indicate the projection directions of the individual submunitions under the action of the spring 4.
  • Fig. 4 is a side view, looking from the bottom of the drawing sheet, of the sole spring 4 at the same instant shown in Fig. 3.
  • the device according to the invention can be also used in submunitions projectiles provided with a spin in which the effect of the centrifugal force is insufficient to obtain the desired distribution of the submunitions on the ground.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Radiation-Therapy Devices (AREA)
  • Peptides Or Proteins (AREA)

Claims (7)

1. Vorrichtung zum Wegschleudern der Submunitionen eines im wesentlichen drallfreien Submunitionsgeschosses oder eines Submunitionsgefechtskopfes, in welchem die Submunitionen in parallelen Lagen mittels einer Flachfeder angeordnet sind, dadurch gekennzeichnet, dass sie fuer jede Submunitionslage wenigstens eine Flachfeder (4, 4') aufweist, welche Flachfeder (4, 4') unter Vorspannung (1,3) zwischen den Submunitionen (2) der sie betreffenden Schicht angeordnet und befaehigt ist, sich zu strecken, wenn die Submunitionen (2) aus dem Geschoss (1) ausgestossen werden, so dass die Submunitionen (2) gegenseitig radial voneinander weggeschleudert werden, und weiters dadurch gekennzeichnet, dass die Feder (4) einer jeden Lage in ihrem vorgespannten Zustand im inneren des Geschosses (1) auf einer Ebene orientiert ist, die im wesentlichen senkrecht zur Laengsachse des Geschosses verlaeuft, so dass die genannte Feder (4), radial nach innen direkt und nur mit den Submunitionen (2) der Lage mit wenigstens zwei hiervon und, radial nach aussen, mit den peripheren Umfassungselementen des Geschosses (1) in Beruehrung steht.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Flachfeder (4) einen Abschnitt der Seitenflaeche der Submunitionen (2), mit denen sie in Beruehrung steht, umfasst.
3. Vorrichtung nach den vorhergehenden Anspruechen, dadurch gekennzeichnet, dass die Flachfeder (4) auch mit der Innenwand des Geschosses (1) in Beruehrung steht.
4. Vorrichtung nach den Anspruechen 1 und 2, dadurch gekennzeichnet, dass die Flachfeder (4) mit den Abstandselementen (3), die zwischen der Innenwand des Geschosses (1) und den Submunitionen (2) angeordnet sind, in Beruehrung steht.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Abstandselemente (3), die zwischen der Innenwand der Geschosse (1) und den Submunitionen angeordnet sind, auf ihren konkaven, mit den Submunitionen in Beruehrung stehenden Seiten, Rillen fuer die Aufnahme der Flachfedern (4) besitzen.
6. Vorrichtung nach einem der vorhergehenden Ansprueche, dadurch gekennzeichnet, dass die Flachfeder eine variable Breite besitzt.
7. Vorrichtung nach einem der vorhergehenden Ansprueche, dadurch gekennzeichnet, dass die Flachfeder (4) eine variable Dicke besitzt.
EP84830249A 1983-11-30 1984-09-10 Einrichtung zum Ausstreuen von Submunition aus drallfreien Trägergeschossen Expired EP0144293B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84830249T ATE37085T1 (de) 1983-11-30 1984-09-10 Einrichtung zum ausstreuen von submunition aus drallfreien traegergeschossen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT23946/83A IT1167034B (it) 1983-11-30 1983-11-30 Dispositivo di allontanamento reciproco delle submunizioni di un proiettile non rotante a submunizioni
IT2394683 1983-11-30

Publications (2)

Publication Number Publication Date
EP0144293A1 EP0144293A1 (de) 1985-06-12
EP0144293B1 true EP0144293B1 (de) 1988-09-07

Family

ID=11211059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830249A Expired EP0144293B1 (de) 1983-11-30 1984-09-10 Einrichtung zum Ausstreuen von Submunition aus drallfreien Trägergeschossen

Country Status (5)

Country Link
EP (1) EP0144293B1 (de)
AT (1) ATE37085T1 (de)
DE (1) DE3473918D1 (de)
ES (1) ES8700424A1 (de)
IT (1) IT1167034B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1266202A (en) * 1986-06-05 1990-02-27 William J. Robertson Multiple flechette warhead
DE3629668C1 (de) * 1986-08-30 1988-03-10 Rheinmetall Gmbh Drallstabilisiertes Bomblettraegergeschoss
DE4000902A1 (de) * 1990-01-15 1991-07-18 Diehl Gmbh & Co Sperrwaffe mit verschiessbaren wirkkoerpern
FR2702557B1 (fr) * 1993-03-08 1995-04-28 Giat Ind Sa Dispositif de calage pour sous-munition.
RU2138763C1 (ru) * 1998-07-06 1999-09-27 Государственное научно-производственное предприятие "Сплав" Кассетная боевая часть реактивного снаряда

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117967A1 (de) * 1983-01-05 1984-09-12 SIMMEL S.p.A. Augenblicklich öffnende, einen Fallschirm enthaltende Vorrichtung für Mörser-Leuchtgranaten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208220B (de) * 1960-04-30 1965-12-30 Heinrich Klein Dr Ing Gefechtskopf fuer einen angetriebenen Flugkoerper
CH526764A (de) * 1970-07-17 1972-08-15 Oerlikon Buehrle Ag Geschoss mit einem Geschossmantel
DE2340652A1 (de) * 1972-08-18 1974-04-04 Fmc Corp Geschosswaffe
SE383040B (sv) * 1974-06-20 1976-02-23 Bofors Ab For momentan och utbredd spridning av reflekterande material avsedd berare, exv. i form av en granat

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117967A1 (de) * 1983-01-05 1984-09-12 SIMMEL S.p.A. Augenblicklich öffnende, einen Fallschirm enthaltende Vorrichtung für Mörser-Leuchtgranaten

Also Published As

Publication number Publication date
ES8700424A1 (es) 1986-10-01
ATE37085T1 (de) 1988-09-15
IT1167034B (it) 1987-05-06
DE3473918D1 (en) 1988-10-13
ES538080A0 (es) 1986-10-01
IT8323946A0 (it) 1983-11-30
EP0144293A1 (de) 1985-06-12

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