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EP0246412A1 - Disintegrating projectile for a practice round - Google Patents

Disintegrating projectile for a practice round Download PDF

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Publication number
EP0246412A1
EP0246412A1 EP87103741A EP87103741A EP0246412A1 EP 0246412 A1 EP0246412 A1 EP 0246412A1 EP 87103741 A EP87103741 A EP 87103741A EP 87103741 A EP87103741 A EP 87103741A EP 0246412 A1 EP0246412 A1 EP 0246412A1
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EP
European Patent Office
Prior art keywords
decay
circular
insert
bowl
projectile according
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.)
Granted
Application number
EP87103741A
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German (de)
French (fr)
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EP0246412B1 (en
Inventor
J.S. Leemans
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NWM de Kruithoorn BV
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NWM de Kruithoorn BV
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Priority to AT87103741T priority Critical patent/ATE48471T1/en
Publication of EP0246412A1 publication Critical patent/EP0246412A1/en
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Publication of EP0246412B1 publication Critical patent/EP0246412B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • F42B8/14—Projectiles or missiles disintegrating in flight or upon impact
    • F42B8/16—Projectiles or missiles disintegrating in flight or upon impact containing an inert filler in powder or granular form

Definitions

  • the invention relates to a decay projectile according to the preamble of patent claim 1.
  • a generic decay is the subject of DE-PS 12 39 961.
  • the stiffening insert consists of two thin-walled circular cylinders closed on one side, the inside diameter of one being adapted to the outside diameter of the other for insertion.
  • a circular cylinder space closed in this way on all sides contains a compact made of metal powder.
  • the circular disk-shaped bottoms are provided with radial recesses as a predetermined breaking point.
  • the known decay projectile is sufficiently resistant to transverse forces which occur during feeding (for example in a box for belted ammunition or in a belt feeder).
  • the bullet with its tip-side oval surface wants to strike on one side in the rear wall area of the cargo space.
  • one of the two ejectors is located in the area mentioned (for removing an empty shot sleeve from the cargo space).
  • the projectile in the relevant area of the oval surface is sufficiently resistant and insensitive: it slides past the claw of the ejector projecting against the tube core axis, so that it does not hinder the insertion process. If the cartridge is inserted, the respective ejector claw lies on the front of the bottom of the propellant charge sleeve after the ejector has moved forward.
  • the thin ejector claw can strike the relevant ejector claw in the case when the thin plastic casing hits the casing. It can hook in there, and the ejector therefore does not get behind the bottom of the propellant charge shell, but is already taken along prematurely by the damaged shell shell, interrupts the insertion process and thus leads to a weapon malfunction. If the claw only strikes a leak and does not hook into it, but slides off, it can pull a piece of the cover that has been torn off on one side to the rear, so that it increases the diameter of the lock in the area concerned by the sleeve wall thickness. Even if this does not necessarily result in an immediate weapon disruption metal powder can escape from the leak and lead to premature unusability of the weapon due to considerable wear in the barrel.
  • the invention has for its object to provide a generic decay storey, the shell of which is sufficiently resilient in the ogival area on the one hand, but on the other hand does not result in the formation of dangerous broken pieces which can exceed the safety limit in front of the pipe mouth.
  • a thin-walled sleeve 10 made of plastic or the like consists of a cup-shaped base part 12 and a main part 16.
  • the latter is formed by a circular cylindrical part 18, to which a hollow tip 20 is connected on the front side.
  • the base 12 and the main part 16 are connected to one another in an area 14.
  • a transition region 28 and an outer surface 24 of the hollow tip 20 adjoin a peripheral surface 22 of the circular cylindrical part 18.
  • An inner wall surface 26 of the casing 10 encloses an interior space (not designated in more detail) with a content which is formed in sequence from a rear buffer 74 made of metal powder, followed by rotationally symmetrical pressing bodies 70, 68 and 60 made of metal powder.
  • the pressing bodies 70 and 68 are completely encased by the inner wall surface 26. This is only partially the case with the front press body 60. This is because it has a frustoconical end face region 64, of which only a largest circumferential circle 65 lies on the inner wall surface 26. From the circumferential circle 65, a stiffening insert 30, which is made of plastic or the like, extends in the direction of the hollow tip 20. It consists of a front 32 and a rear cup 34 and is front of a circular edge 33 and rear of a circular edge 35 limited. An outer wall surface 36 of the front bowl 32 and an outer wall surface 46 of the rear bowl 34 merge continuously into one another and are in intimate contact with the inner wall surface 26.
  • a circular disk part 40 connects the two bowls 32 and 34, but separates their interior spaces, which are not shown.
  • the interior of the front bowl 32 is delimited by the circular edge 33, a circular cylindrical inner surface 38 and a front surface 42 of the circular disk part 40 and is open on the front. Since the circular edge 33 also lies on the inner wall surface 26, the wall thickness of the front cup increases continuously up to the surface 42.
  • the wall thickness of the circular edge 35 coinciding with the circumferential circle 65 to a groove 52 of the inner surface 48 with the surface 44 of the circular disk part 40 increases continuously, the groove 52 coinciding with a smallest circumferential circle 67 of the end face region 64.
  • the one from the Inner space 38 and space 42 delimited space is supplemented by the front boundary 33 by a space which is delimited by the inner wall surface 26 in the region of the hollow tip 20.
  • This space is filled with a body made of elastic hard foam 76 of low density.
  • the decay projectile according to the invention when inserted with its outer surface 24 against an obstacle, such as the pull-out claw mentioned at the beginning, strong pressure is successively exerted on a narrow strip.
  • the sheath 10 in the hollow tip region 20 can, however, yield and is dented inwards.
  • a corresponding dent movement is initially counteracted by the hard foam 76, but then increasingly by the wall of the front bowl 32. This effect increases as the area of greatest wall thickness in the vicinity of the circular disk part 40 is approached, and there is a transition to the circular edge 35. Since the disruptive contact between the decay storey and the extractor claw takes place regularly within narrow limits, it has no damaging consequences.
  • the casing 10 After leaving a gun barrel, the casing 10 is torn open by the swirl and under the action of conventional predetermined breaking points. Shape and low average density of the fragment formed from the insert 30 and the rigid foam body 76 lead to its rapid deceleration, so that there is no danger within narrow limits.
  • the hard foam 46 can advantageously be integrated into the insert 30. Also, if necessary, to reduce mass in the area concerned or from Ferti For reasons of supply, a central-axial bore 43 can be provided, which extends at least through the circular disk part 40.

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  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Pens And Brushes (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Catalysts (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

Im Bereich der vorderseitigen Hohlspitze (20) einer aus Kunststoff gefertigte dünnwandige Hülle (10) ist an der Innenwandfläche (26) eine Rotationssymmetrische Einlage (30) aus Kunststoff angepaßt. Die Einlage (20) ist derart gestaltet, daß sie die Hülle (10) in einem Übergangsbereich (28) von der vorderen Begrenzung (33) aus zunehmend aussteift und damit sowohl einerseits eine aus­reichende Widerstandsfähigkeit gegen einführbedingte schlagartige Beanspruchungen wie auch andererseits gewähr­leistet, daß hierdurch kein gefährliches, eine Sicherheits­grenze vor einer Rohrwaffe überschreitendes Bruchstück ge­bildet wird.

Figure imgaf001
In the area of the front hollow tip (20) of a thin-walled casing (10) made of plastic, a rotationally symmetrical insert (30) made of plastic is adapted to the inner wall surface (26). The insert (20) is designed in such a way that it increasingly stiffens the sheath (10) in a transition region (28) from the front boundary (33) and thus on the one hand ensures sufficient resistance to sudden stresses caused by insertion and on the other hand ensures that this results no dangerous fragment that exceeds a safety limit in front of a barrel weapon is formed.
Figure imgaf001

Description

Die Erfindung betrifft ein Zerfallgeschoß nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a decay projectile according to the preamble of patent claim 1.

Ein gattungsgleiches Zerfallgeschoß ist Gegenstand der DE-PS 12 39 961. Die aussteifende Einlage besteht aus zwei dünnwandigen, einseitig geschlossenen Kreis­zylindern, wobei der Innendurchmesser des einen dem Außendurchmesser des anderen zum Ineinanderstecken angepaßt ist. Ein dieserart allseitig geschlossener Kreiszylinderraum enthält einen Preßkörper aus Metall­pulver. Die kreisscheibenförmigen Böden sind mit radialen Ausnehmungen als Sollbruchstelle versehen. Das bekannte Zerfallgeschoß ist ausreichend widerstandsfähig gegen­über beim Zuführen (beispielsweise in einem Kasten für gegurtete Munition oder in einem Gurtzuführer) auftretenden Querkräften. Bei einer Waffe mit Keilverschluß und zwei axial verschiebbaren Auswerfern im Bereich des Ladungs­raums traten aber Störungen auf, welche die Einführbe­dingungen zurückzuführen sind: wenn die Patrone achs­fluchtend mit der Rohrseelenachse in Einführstellung liegt, kann sie von dem Mitnehmer des Ansetzers nicht genau mittig, d. h. in Verlängerung ihrer Längsachse, zum Einführen angestoßen und mitgenommen werden, weil dies die Gefahr einer ungewollten Anzündung der Treibladung bedeutete. Greift aber der Mitnehmer am Boden der Treibladungshülse außermittig an, dann neigt die Patrone dazu, aus der Achsrichtung auszubrechen. Bei der hohen Einführgeschwindigkeit macht sich das derart bemerkbar, daß das Geschoß mit seiner spitzenseitigen Ogivalfläche einseitig im rückseitigen Wandbereich des Ladungsraums an­schlagen will. Bei der bekannten Maschinenenwaffe befindet sich jedoch im besagten Bereich einer der beiden Auswerfer (zum Entfernen einer leerge­schossenen Treibladungshülse aus dem Ladungsraum). Bei scharfer Munition ist das Geschoß im betreffen­den Bereich der Ogivalfläche ausreichend widerstands­fähig und unempfindlich: es gleitet an der gegen die Rohrseelenachse vorstehenden Kralle des Auswerfers vorbei, so daß sie den Einführvorgang nicht behindert. Wenn bei Patrone eingeführt ist, liegt die jeweilige Auswerferkralle nach einer Vorwärtsbewegung des Auswerfers an der Vorderseite des Bodens der Treib­ladungshülse. Beim Verschießen von Manöverpatronen mit einem gattungsgleichen Zerfallgeschoß kann beim Auftreffen der dünnen Kunststoffhülle im Ogivalbereich auf die betreffende Auswerferkralle letztere ein Leck in die Hülle schlagen. Sie kann sich dort einhaken, und der Auswerfer gelangt folglich nicht hinter den Boden der Treibladungshülse, sondern wird bereits von der beschädig­ten Geschoßhülle vorzeitig mitgenommen, unterbricht den Einführvorgang und führt so zu einer Waffenstörung. Schlägt die Kralle nur ein Leck und hakt sich dort nicht ein, son­dern gleitet ab, dann kann sie dabei ein einseitig los­gerissenes Stück der Hülle nach hinten ziehen, so daß es in dem betreffenden Bereich den Durchmesser des Geschlosses um die Hülsenwandstärke vergrößert. Wenn auch hieraus nicht zwingend eine unmittelbare Waffenstörung zu resultieren braucht, so kann doch Metallpulver aus dem Leck aus­treten und über erheblichen Verschleiß im Rohr zu einer vorzeitigen Unbrauchbarkeit der Waffe führen.A generic decay is the subject of DE-PS 12 39 961. The stiffening insert consists of two thin-walled circular cylinders closed on one side, the inside diameter of one being adapted to the outside diameter of the other for insertion. A circular cylinder space closed in this way on all sides contains a compact made of metal powder. The circular disk-shaped bottoms are provided with radial recesses as a predetermined breaking point. The known decay projectile is sufficiently resistant to transverse forces which occur during feeding (for example in a box for belted ammunition or in a belt feeder). In the case of a weapon with a wedge lock and two axially displaceable ejectors in the area of the cargo space, malfunctions occurred which are due to the insertion conditions: if the cartridge is in alignment with the barrel core axis in the insertion position, it cannot be exactly centered by the driver of the rammer, i.e. in an extension their longitudinal axis, to be pushed for insertion and taken along because this meant the risk of an undesired ignition of the propellant charge. However, if the driver attacks the bottom of the propellant charge sleeve off-center, the cartridge tends to break out of the axial direction. This is so noticeable at the high insertion speed that the bullet with its tip-side oval surface wants to strike on one side in the rear wall area of the cargo space. In the case of the known machine gun, however, one of the two ejectors is located in the area mentioned (for removing an empty shot sleeve from the cargo space). In the case of live ammunition, the projectile in the relevant area of the oval surface is sufficiently resistant and insensitive: it slides past the claw of the ejector projecting against the tube core axis, so that it does not hinder the insertion process. If the cartridge is inserted, the respective ejector claw lies on the front of the bottom of the propellant charge sleeve after the ejector has moved forward. When firing maneuver cartridges with a decay bullet of the same type, the thin ejector claw can strike the relevant ejector claw in the case when the thin plastic casing hits the casing. It can hook in there, and the ejector therefore does not get behind the bottom of the propellant charge shell, but is already taken along prematurely by the damaged shell shell, interrupts the insertion process and thus leads to a weapon malfunction. If the claw only strikes a leak and does not hook into it, but slides off, it can pull a piece of the cover that has been torn off on one side to the rear, so that it increases the diameter of the lock in the area concerned by the sleeve wall thickness. Even if this does not necessarily result in an immediate weapon disruption metal powder can escape from the leak and lead to premature unusability of the weapon due to considerable wear in the barrel.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungs­gleiches Zerfallgeschoß zu schaffen, dessen Hülle im Ogivalbereich einerseits ausreichend widerstands­fähig ist, andererseits aber hierdurch nicht zum Entstehen von gefährlichen Bruchstrücken führt, welche die Sicher­heitsgrenze vor der Rohrmündung überschreiten können.The invention has for its object to provide a generic decay storey, the shell of which is sufficiently resilient in the ogival area on the one hand, but on the other hand does not result in the formation of dangerous broken pieces which can exceed the safety limit in front of the pipe mouth.

Gelöst wird diese Aufgabe nach der vom Patentanspruch 1 repräsentierten Lehre mit den in seinem kennzeich­nenden Teil angegebenen erfinderischen Merkmalen.This object is achieved according to the teaching represented by claim 1 with the inventive features specified in its characterizing part.

Die Erfindung wird nachstehend anhand eines in der Zeichnung in einem längsaxialen Schnitt dargestellten bevorzugten Ausführungsbeispiels näher erläutert.The invention is explained below with reference to a preferred embodiment shown in the drawing in a longitudinal axial section.

Eine dünnwändige Hülle 10 aus Kunststoff o. dgl. besteht aus einem becherförmigen Bodenteil 12 und einem Haupt­teil 16. Letzterer wird gebildet von einem kreiszylin­drischen Teil 18, an welchen sich vorderseitig eine Hohl­spitze 20 anschließt. In einem Bereich 14 sind Boden- 12 und Hauptteil 16 miteinander verbunden. An eine Um­fangsfläche 22 des kreiszylindrischen Teils 18 schließen sich vorderseitig ein Übergangsbereich 28 und eine Außenfläche 24 der Hohlspitze 20 an. Eine Innenwand­fläche 26 der Hülle 10 umschließt einen nicht näher bezeichneten Innenraum mit einem Inhalt, welcher der Reihe nach gebildet wird aus einem rückseitigen Puffer 74 aus Metallpulver, auf welchen rotationssymmetrische Preßkörper 70, 68 und 60 aus Metallpulver folgen.A thin-walled sleeve 10 made of plastic or the like consists of a cup-shaped base part 12 and a main part 16. The latter is formed by a circular cylindrical part 18, to which a hollow tip 20 is connected on the front side. The base 12 and the main part 16 are connected to one another in an area 14. A transition region 28 and an outer surface 24 of the hollow tip 20 adjoin a peripheral surface 22 of the circular cylindrical part 18. An inner wall surface 26 of the casing 10 encloses an interior space (not designated in more detail) with a content which is formed in sequence from a rear buffer 74 made of metal powder, followed by rotationally symmetrical pressing bodies 70, 68 and 60 made of metal powder.

Die Preßkörper 70 und 68 werden umfangsseitig voll­ständig von der Innenwandfläche 26 dicht eingehüllt. Bei dem vorderen Preßkörper 60 ist das nur teilweise der Fall. Er weist nämlich einen kegelstumpfförmigen Stirnflächenbereich 64 auf, von welchem nur ein größter Umfangskreis 65 auf der Innenwandfläche 26 liegt. Vom Umfangskreis 65 aus erstreckt sich eine aussteifende Einlage 30, welche aus Kunststoff o. dgl. besteht, in Richtung der Hohlspitze 20. Sie besteht aus einem vorderen 32 und einem hinteren Napf 34 und wird vorn von einer Kreiskante 33 und hinten von einer Kreiskante 35 begrenzt. Eine Außen­wandfläche 36 des vorderen Napfs 32 und eine Außen­wandfläche 46 des hinteren Napfs 34 gehen stetig inein­ander über und stehen im innigen Kontakt mit der Innen­wandfläche 26. Ein Kreisscheibenteil 40 verbindet die beiden Näpfe 32 und 34, trennt aber ihre nicht bezeichne­ten Innenräume voneinander. Der Innenraum des vorderen Napfs 32 wird von der Kreiskante 33, einer kreiszylindri­schen Innenfläche 38 und einer Vorderfläche 42 des Kreisscheibenteils 40 begrenzt und ist vorderseitig offen. Da auch die Kreiskante 33 auf der Innenwand­fläche 26 liegt, ergibt sich für den vorderen Napf eine bis zur Fläche 42 stetig zunehmende Wandstärke. Beim hinteren Napf 34 nimmt dessen Wandstärke von der mit dem Umfangskreis 65 zusammenfallenden Kreis­kante 35 bis zu einer Kehle 52 der Innenfläche 48 mit der Fläche 44 des Kreisscheibenteils 40 stetig zu, wobei die Kehle 52 mit einem kleinsten Umfangskreis 67 des Stirnflächenbereichs 64 zusammenfällt. Der von der Innenfläche 38 und der Fläche 42 begrenzte Raum wird über die vordere Begrenzung 33 ergänzt von einem Raum, welcher von der Innenwandfläche 26 im Bereich der Hohlspitze 20 begrenzt wird. Dieser Raum ist mit einem Körper aus elastischem Hartschaum 76 geringer Dichte gefüllt.The pressing bodies 70 and 68 are completely encased by the inner wall surface 26. This is only partially the case with the front press body 60. This is because it has a frustoconical end face region 64, of which only a largest circumferential circle 65 lies on the inner wall surface 26. From the circumferential circle 65, a stiffening insert 30, which is made of plastic or the like, extends in the direction of the hollow tip 20. It consists of a front 32 and a rear cup 34 and is front of a circular edge 33 and rear of a circular edge 35 limited. An outer wall surface 36 of the front bowl 32 and an outer wall surface 46 of the rear bowl 34 merge continuously into one another and are in intimate contact with the inner wall surface 26. A circular disk part 40 connects the two bowls 32 and 34, but separates their interior spaces, which are not shown. The interior of the front bowl 32 is delimited by the circular edge 33, a circular cylindrical inner surface 38 and a front surface 42 of the circular disk part 40 and is open on the front. Since the circular edge 33 also lies on the inner wall surface 26, the wall thickness of the front cup increases continuously up to the surface 42. In the case of the rear bowl 34, the wall thickness of the circular edge 35 coinciding with the circumferential circle 65 to a groove 52 of the inner surface 48 with the surface 44 of the circular disk part 40 increases continuously, the groove 52 coinciding with a smallest circumferential circle 67 of the end face region 64. The one from the Inner space 38 and space 42 delimited space is supplemented by the front boundary 33 by a space which is delimited by the inner wall surface 26 in the region of the hollow tip 20. This space is filled with a body made of elastic hard foam 76 of low density.

Gerät das Zerfallgeschoß nach der Erfindung beim Einführen mit seiner Außenfläche 24 gegen ein Hinder­nis, wie es die eingangs erwähnte Auszieherkralle darstellt, wird auf einen schmalen Streifen nacheinander ein starker Druck ausgeübt. Die Hülle 10 im Hohlspitzen­bereich 20 kann aber nachgeben und wird nach innen ein­gebeult. Dabei wird eine betreffenden Einbeulbewegung zunächst von dem Hartschaum 76, dann aber zunehmend auf von der Wand des vorderen Napfs 32 entgegengewirkt. Diese Wirkung nimmt mit Annäherung an den Bereich größter Wandstärke in der Nachbarschaft des Kreisscheiben­teils 40 zu, und es erfolgt eine Überleitung zur Kreis­kante 35. Da der störende Kontakt zwischen Zerfallge­schoß und Auszieherkralle regelmäßig innerhalb engerer Grenzen stattfindet, bleibt er ohne schädigende Folge. Nach dem Verlassen eines Waffenrohres wird die Hülle 10 durch den Drall und unter Wirkung üblicher Sollbruchstellen aufgerissen. Gestalt und geringe durchschnittliche Dichte des aus der Einlage 30 und dem Hartschaumkörper 76 ge­bildeten Bruchstücks führen zu dessen rascher Abbremsung, so daß innerhalb enger Grenzen keine Gefähr besteht.If the decay projectile according to the invention, when inserted with its outer surface 24 against an obstacle, such as the pull-out claw mentioned at the beginning, strong pressure is successively exerted on a narrow strip. The sheath 10 in the hollow tip region 20 can, however, yield and is dented inwards. A corresponding dent movement is initially counteracted by the hard foam 76, but then increasingly by the wall of the front bowl 32. This effect increases as the area of greatest wall thickness in the vicinity of the circular disk part 40 is approached, and there is a transition to the circular edge 35. Since the disruptive contact between the decay storey and the extractor claw takes place regularly within narrow limits, it has no damaging consequences. After leaving a gun barrel, the casing 10 is torn open by the swirl and under the action of conventional predetermined breaking points. Shape and low average density of the fragment formed from the insert 30 and the rigid foam body 76 lead to its rapid deceleration, so that there is no danger within narrow limits.

Bei der Wahl eines entsprechenden Werkstoffs, beispielsweise Polyurethan, läßt sich der Hartschaum 46 vorteilhafter Weise in die Einlage 30 integrieren. Auch kann im Bedarfsfall zur Massereduzierung im betreffenden Bereich oder aus Ferti­ gungsgründen eine zentralaxiale Bohrung 43 vorgesehen sein, welche sich wenigstens durch den Kreisscheibenteil 40 hindurcherstreckt.When choosing an appropriate material, for example polyurethane, the hard foam 46 can advantageously be integrated into the insert 30. Also, if necessary, to reduce mass in the area concerned or from Ferti For reasons of supply, a central-axial bore 43 can be provided, which extends at least through the circular disk part 40.

Claims (6)

1. Zerfallgeschoß für patronierte Manövermunition für Maschinenwaffen mit gezogenem Rohr mit einer dünnwandigen und geschlossenen Hülle aus Kunst­stoff o. dgl., welche von einem rückseitigen, becherförmigen Bodenteil und einem mit diesem verbundenen Hauptteil mit einem in eine sich verjüngende Hohlspitze übergehenden Kreiszylinder­teil gebildet wird und eine vorgebbare Anzahl axial hintereinander angeordneter rotationssymmetrischer Preßkörper aus Metallpulver und im vorderen Bereich eine rotationssymmetrische aussteifende Einlage aus Kunststoff dicht umschließt, wobei die Einlage aus zwei einseitig offenen Napfteilen besteht, von welchen einer mit der Innenfläche seiner Wandung und der Rückseitenfläche eines von der Geschoßlängs­achse senkrecht durchquerten Kreisscheibenteils mit gepreßtem Metallpulver in unmittelbarer Berührung steht, gekennzeichnet durch folgende Merkmale: a) die Einlage (30) ist einstückig ausgebildet und er­streckt sich längsaxial zwischen einer rückseitigen (35) und einer vorderseitigen Begrenzung (33) im we­sentlichen aus dem Kreiszylinderbereich (18) des Haupt­teils (16) bis in die Hohlspitze (20), wobei der Kreisscheibenteil (40) den vorderen (32) und hinteren Napf (34) innenseitig begrenzt; b) bei jedem Napf (32, 34) nimmt die Wandstärke von der Begrenzung (33, 35) bis zur benach­barten Fläche (42, 44) des Kreisscheibenteils (40) jeweils stetig zu, c) die Innenfläche (48) des hinteren Napfs (34) schmiegt sich dem Stirnflächenbereich (64) des vorderen Preßkörpers (60) an und d) ein von der Innenfläche (38) des vorderen Napfs (32) und der angrenzenden Innenwandfläche (26) des Haupt­teils (16) in der Hohlspitze (20) begrenzter Raum ist mit einem elastischen Hartschaum (76) gefüllt. 1. Decay bullet for cartridge maneuvering for machine guns with a drawn barrel with a thin-walled and closed shell made of plastic or the like, which is formed by a rear, cup-shaped base part and a main part connected to this with a circular cylinder part merging into a tapering hollow tip and one Predeterminable number of axially successively arranged rotationally symmetrical pressing bodies made of metal powder and in the front area tightly encloses a rotationally symmetrical stiffening insert made of plastic, the insert consisting of two cup parts that are open on one side, one of which has the inner surface of its wall and the rear surface of a circular disk part perpendicularly crossed by the longitudinal axis of the projectile is in direct contact with pressed metal powder, characterized by the following features: a) the insert (30) is integrally formed and extends longitudinally axially between a rear (35) and a front boundary (33) essentially from the circular cylinder region (18) of the main part (16) into the hollow tip (20), the Circular disk part (40) delimits the inside of the front (32) and rear bowl (34); b) for each bowl (32, 34) the wall thickness increases continuously from the boundary (33, 35) to the adjacent surface (42, 44) of the circular disk part (40), c) the inner surface (48) of the rear bowl (34) nestles against the end face region (64) of the front pressing body (60) and d) a space delimited by the inner surface (38) of the front bowl (32) and the adjacent inner wall surface (26) of the main part (16) in the hollow tip (20) is filled with an elastic hard foam (76). 2. Zerfallgeschoß nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens die rückseitige Begrenzung (35) der Einlage (30) im wesentlichen als Kreiskante ausgebildet ist.2. decay projectile according to claim 1, characterized in that at least the rear boundary (35) of the insert (30) is substantially formed as a circular edge. 3. Zerfallgeschoß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Innenfläche (38) des vorderen Napfs (32) einen Kreiszylinder begrenzt.3. Decay projectile according to claim 1 or 2, characterized in that the inner surface (38) of the front cup (32) delimits a circular cylinder. 4. Zerfallgeschoß nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die vordere Begrenzung (33) als Kreiskante ausgebildet ist.4. decay projectile according to claim 1, 2 or 3, characterized in that the front boundary (33) is designed as a circular edge. 5. Zerfallgeschoß nach einem der Ansprüche 1 bis 4, da­durch gekennzeichnet, daß der Hartschaum (76) in die Einlage (30) integriert ist.5. decay projectile according to one of claims 1 to 4, characterized in that the hard foam (76) is integrated into the insert (30). 6. Zerfallgeschoß nach Anspruch 1 bis 5, gekenn­zeichnet durch eine zentralaxiale Bohrung (43), welche sich wenigstens durch den Kreisschei­benteil (40) hindurch erstreckt.6. decay projectile according to claim 1 to 5, characterized by a central axial bore (43) which extends at least through the circular disc part (40).
EP87103741A 1986-05-23 1987-03-14 Disintegrating projectile for a practice round Expired EP0246412B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103741T ATE48471T1 (en) 1986-05-23 1987-03-14 DECAYING BULLET FOR CARTRIDGE CARTRIDGE AMMUNITION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3617460 1986-05-23
DE3617460A DE3617460C1 (en) 1986-05-23 1986-05-23 Decay bullet for cartridge maneuvering

Publications (2)

Publication Number Publication Date
EP0246412A1 true EP0246412A1 (en) 1987-11-25
EP0246412B1 EP0246412B1 (en) 1989-12-06

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Application Number Title Priority Date Filing Date
EP87103741A Expired EP0246412B1 (en) 1986-05-23 1987-03-14 Disintegrating projectile for a practice round

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US (1) US4716835A (en)
EP (1) EP0246412B1 (en)
AT (1) ATE48471T1 (en)
DE (2) DE3617460C1 (en)
FI (1) FI88748C (en)
NO (1) NO160471C (en)

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DE4029876A1 (en) * 1990-09-21 1992-03-26 Diehl Gmbh & Co AMMUNITION WITH A FOAM SUPPORT BODY
EP0597142B1 (en) * 1992-11-10 1998-06-17 Raufoss A/S A practice projectile
US5847313A (en) * 1997-01-30 1998-12-08 Cove Corporation Projectile for ammunition cartridge
US6317946B1 (en) 1997-01-30 2001-11-20 Harold F. Beal Method for the manufacture of a multi-part projectile for gun ammunition and product produced thereby
US5789698A (en) * 1997-01-30 1998-08-04 Cove Corporation Projectile for ammunition cartridge
US6551376B1 (en) 1997-03-14 2003-04-22 Doris Nebel Beal Inter Vivos Patent Trust Method for developing and sustaining uniform distribution of a plurality of metal powders of different densities in a mixture of such metal powders
US6371029B1 (en) * 2000-01-26 2002-04-16 Harold F. Beal Powder-based disc for gun ammunition having a projectile which includes a frangible powder-based core disposed within a metallic jacket
WO2001069165A2 (en) * 2000-03-08 2001-09-20 Beal Harold F A multi-part projectile and method of making
US7207276B1 (en) * 2004-08-25 2007-04-24 United States Of America As Represented By The Secretary Of The Army Non-lethal ammunition utilizing a dense powder ballast and a two-stage firing sequence
US7314006B1 (en) * 2004-09-30 2008-01-01 United States Of America As Represented By The Secretary Of The Army Nonlethal canister tank round
US8117967B2 (en) * 2005-02-16 2012-02-21 Saltech Ag Bullet
US20100212535A1 (en) * 2007-07-11 2010-08-26 Beal Harold F Traceable Frangible Projectile
US9052174B2 (en) 2007-08-31 2015-06-09 Ra Brands, L.L.C. Tipped projectiles
US20180156588A1 (en) * 2016-12-07 2018-06-07 Russell LeBlanc Frangible Projectile and Method of Manufacture
SG11202001446SA (en) * 2017-08-24 2020-03-30 Companhia Brasileira De Cartuchos Mid-body marking projectile

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DE1016163B (en) * 1955-08-31 1957-09-19 Robert Huck Dipl Ing Blank cartridge
BE662881A (en) * 1964-04-23 1965-08-17
GB1157555A (en) * 1966-09-29 1969-07-09 Rheinmetall Gmbh Improvements in or relating to Target Practice Rounds.

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DE1239961B (en) * 1960-05-20 1967-05-03 Nl Wapen En Munitiefabriek N V Maneuver cartridge for machine weapons
NL135092C (en) * 1962-03-17
DE1273373B (en) * 1966-01-07 1968-07-18 Rheinmetall Gmbh Decay bullet for practice cartridges for handguns or machine guns
DE1286703B (en) * 1966-03-11 1969-01-09 Rheinmetall Gmbh Process for the production of disintegrated bodies for practice ammunition
NL145953B (en) * 1973-09-18 1975-05-15 Nederl Wapen & Munitie DISCONTINUATION PROJECTILE.

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DE1016163B (en) * 1955-08-31 1957-09-19 Robert Huck Dipl Ing Blank cartridge
BE662881A (en) * 1964-04-23 1965-08-17
GB1157555A (en) * 1966-09-29 1969-07-09 Rheinmetall Gmbh Improvements in or relating to Target Practice Rounds.

Also Published As

Publication number Publication date
NO871829L (en) 1987-11-24
ATE48471T1 (en) 1989-12-15
DE3617460C1 (en) 1987-10-01
NO160471B (en) 1989-01-09
FI88748B (en) 1993-03-15
NO871829D0 (en) 1987-05-04
NO160471C (en) 1989-04-19
DE3761110D1 (en) 1990-01-11
EP0246412B1 (en) 1989-12-06
FI88748C (en) 1993-06-28
FI871221A0 (en) 1987-03-19
US4716835A (en) 1988-01-05
FI871221L (en) 1987-11-24

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