EP0255570A1 - Sabot projectile, especially an arrow-type projectile - Google Patents

Sabot projectile, especially an arrow-type projectile Download PDF

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Publication number
EP0255570A1
EP0255570A1 EP87105617A EP87105617A EP0255570A1 EP 0255570 A1 EP0255570 A1 EP 0255570A1 EP 87105617 A EP87105617 A EP 87105617A EP 87105617 A EP87105617 A EP 87105617A EP 0255570 A1 EP0255570 A1 EP 0255570A1
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EP
European Patent Office
Prior art keywords
sabot
projectile
projectile body
thread
arrow
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
EP87105617A
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German (de)
French (fr)
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EP0255570B1 (en
Inventor
Hanspeter Sigg
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Rheinmetall Air Defence AG
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Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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Publication of EP0255570A1 publication Critical patent/EP0255570A1/en
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Publication of EP0255570B1 publication Critical patent/EP0255570B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
    • F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile

Definitions

  • the invention relates to a sabot projectile, in particular an arrow projectile, comprising: a projectile body, in particular arrow-shaped, with an external thread, in particular a saw thread, a sabot, in particular made of light metal, with predetermined breaking points, cartridge grooves and an internal thread into which the projectile body can be screwed, - A sabot jacket made of plastic with pipe guide sections and predetermined breaking points, and a hood made of plastic.
  • the swirl of the sabot should be transmitted as completely as possible to the projectile body.
  • the projectile body therefore has recesses as holding means, in which the sabot engages on the sabot for the purpose of transmitting the forces occurring between the sabot and projectile body via holding means designed as cams.
  • a disadvantage of these known arrow projectiles is that the stability of the projectile body, in particular an arrow-shaped projectile body, is no longer guaranteed in the event of a large swirl.
  • the object which is to be achieved with the present invention is to create a sabot projectile which remains completely stable in its trajectory and whose swirl is correspondingly small.
  • the projectile according to the invention is characterized in that the projectile body 10 is rotatably mounted in the sabot 19 and that the thread 11, 20 has the direction of rotation of the tubular twist and the size of the thread pitch angle ⁇ , the sliding friction angle ⁇ between the projectile body 10 and Sabot 19 approximately corresponds.
  • This sabot bullet contains: - An arrow-shaped projectile body 10, which is also referred to as a heavy metal core and which has a thread, preferably a saw thread 11, in the central section. This thread 11 has a pitch angle ⁇ , which is shown in the drawing and the meaning of which is explained below.
  • a light set sleeve 16 with a light set 17, is located in the rear end of the sleeve 12.
  • a flange 18 prevents the light set sleeve 16 with the light set 17 from falling out of the sleeve 12.
  • This sabot 19 has grooves 21 which form a labyrinth seal, the purpose of which is explained below.
  • Two pins 22 which through radial holes in Sabot 19 project into corresponding blind holes on the projectile body 10 and secure the sabot 19 against rotation relative to the projectile body 10.
  • pins 22 are held by a cartridge case, not shown, and are radially displaced by the swirl, so that the projectile body 10 can already rotate in the weapon barrel, relative to the sabot 19, as explained further below.
  • a sabot jacket 23 which surrounds the sabot 19 and which has two pipe guide sections 24 which penetrate into swirl grooves (not shown) of the weapon barrel and impart a swirl to the sabot projectile when fired.
  • the sabot jacket 23 is preferably made of plastic.
  • a hood 25 which is fastened to the sabot jacket 23 by a snap lock 26.
  • This hood which is closed at the front, is hollow and can be filled with propellant gas via the aforementioned labyrinth seal and a longitudinal groove 27 in such a way that it is torn open by the gas pressure when it exits the weapon barrel.
  • An ogive 28 or a truncated cone which is located at the front end of the projectile body 10 and protrudes into the hood 25 mentioned.
  • the sabot projectile described protrudes into a cartridge case, not shown.
  • a cartridge case not shown.
  • two so-called cartridge grooves 29 are provided, to which the cartridge case is attached with the cartridge case mouth.
  • the operation of the sabot projectile described is as follows:
  • the cartridge case mouth of the cartridge case, not shown, protrudes into the cartridge grooves 29 and prevents the sabot projectile from the Cartridge case can fall out.
  • the two pins prevent the projectile body 10 from rotating in the sabot 19.
  • the pins 22 move radially outward by centrifugal forces to such an extent that the projectile body 10 can rotate in the sabot 19, i.e. a rotational slip between the projectile body 10 and the sabot 19 is made possible.
  • the size of the pitch angle ⁇ on the saw thread 11 and the direction of rotation are selected such that the frictional forces between the projectile body 10 and the sabot 19 are not sufficient to transmit the swirl acceleration from the sabot 19 completely to the projectile body 10. It is thereby achieved that the projectile body 10 emerges from the weapon barrel with a smaller swirl or without swirl than the sabot 19.
  • the invention now consists in choosing the size of the pitch angle ⁇ such that the rotation of the projectile body 10 corresponds to the optimum speed for an arrow projectile in order to ensure a stable flight of the projectile body. With a large swirl, a stable flight on arrow projectiles is not guaranteed.
  • a lubricating varnish is preferably inserted between the external thread 11 of the projectile body 10 and the internal thread 20 of the sabot 19 to ensure a constant frictional force.
  • the pins 22 located in the sabot 19 are preferably supported on flats 31 on the projectile body 10 and do not protrude into blind holes in the projectile body 10, as described above. Because with such blind holes there is a risk that each pin 22 is jammed in this blind hole before being pushed out by the swirl. On the other hand, the flat 31 is able to move the pin 22 itself radially outwards as soon as the projectile body 10 moves relative to the sabot 19.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Testing Of Engines (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Materials For Medical Uses (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

Treibspiegelgeschosse, insbesondere Pfeilgeschosse, sollten einen möglichst kleinen Drall aufweisen, damit sie nicht in der Luft zu pendeln beginnen (Nutation). Anderseits ist es für die Ablösung des Treibspiegels vom Geschosskörper an der Mündung des Waffenrohres vorteilhaft, wenn der Treibspiegel einen Drall aufweist. Dieses Ziel wird erfindungsgemäss dadurch erreicht, dass der Geschosskörper (10) in den Treibspiegel (19) eingeschraubt ist und sich relativ zum Treibspiegel (19) drehen kann, wobei das Gewinde (11,20) die Drehrichtung des Rohrdralles hat und die Grösse des Gewindesteigungswinkels (α ) dem Gleitreibungswinkel (µ) zwischen Geschosskörper (10) und Treibspiegel (19) entspricht.Sabot projectiles, in particular arrow projectiles, should have the smallest possible twist so that they do not start to oscillate in the air (nutation). On the other hand, it is advantageous for the sabot to be detached from the projectile body at the muzzle of the weapon barrel if the sabot has a swirl. According to the invention, this aim is achieved in that the projectile body (10) is screwed into the sabot (19) and can rotate relative to the sabot (19), the thread (11, 20) having the direction of rotation of the tube twist and the size of the thread pitch angle (α) corresponds to the sliding friction angle (µ) between the projectile body (10) and the sabot (19).

Description

Die Erfindung betrifft ein Treibspiegelgeschoss, insbesondere ein Pfeilgeschoss, enthaltend:

- einen Geschosskörper, insbesondere pfeilförmig, mit einem Aussengewinde, insbesondere Sägengewinde,
- einen Treibspiegel insbesondere aus Leichtmetall, mit Sollbruchstellen, Patronierungsrillen und einem Innengewinde, in welches der Geschosskörper einschraubbar ist,
- einen Treibspiegelmantel aus Kunststoff mit Rohrführungssektionen und Sollbruchstellen, und eine Haube aus Kunststoff.The invention relates to a sabot projectile, in particular an arrow projectile, comprising:

a projectile body, in particular arrow-shaped, with an external thread, in particular a saw thread,
a sabot, in particular made of light metal, with predetermined breaking points, cartridge grooves and an internal thread into which the projectile body can be screwed,
- A sabot jacket made of plastic with pipe guide sections and predetermined breaking points, and a hood made of plastic.

Bei einem bekannten Treibspiegelgeschoss dieser Art (siehe DE-A-2924036), insbesondere einem Pfeilgeschoss, soll der Drall des Treibspiegels möglichst vollständig auf den Geschosskörper übertragen werden. Der Geschosskörper weist daher als Haltemittel Ausnehmungen auf, in welche der Treibspiegel zwecks Übertragung der zwischen Treibspiegel und Geschosskörper auftretenden Kräfte über als Nocken ausgebildete Haltemittel am Treibspiegel eingreift. Diese Haltemittel bilden Rillen oder ein Gewinde mit Steigungswinkel α = 0°.In a known sabot projectile of this type (see DE-A-2924036), in particular an arrow projectile, the swirl of the sabot should be transmitted as completely as possible to the projectile body. The projectile body therefore has recesses as holding means, in which the sabot engages on the sabot for the purpose of transmitting the forces occurring between the sabot and projectile body via holding means designed as cams. These holding means form grooves or a thread with a lead angle α = 0 °.

Es ist aber auch bekannt, ein normales Gewinde zwischen Geschosskörper und Treibspiegel anzuordnen (siehe insbesondere DE-A-2924036 und DE-A-1703507).However, it is also known to arrange a normal thread between the projectile body and the sabot (see in particular DE-A-2924036 and DE-A-1703507).

Nachteilig bei diesen bekannten Pfeilgeschossen ist, dass bei grossem Drall die Stabilität des Geschosskörpers, insbesondere eines pfeilförmigen Geschosskörpers, nicht mehr gewährleistet ist.A disadvantage of these known arrow projectiles is that the stability of the projectile body, in particular an arrow-shaped projectile body, is no longer guaranteed in the event of a large swirl.

Die Aufgabe, welche mit der vorliegenden Erfindung gelöst werden soll, besteht in der Schaffung eines Treibspiegelgeschosses, das auf seiner Flugbahn vollständig stabil bleibt und dessen Drall entsprechend klein ist.The object which is to be achieved with the present invention is to create a sabot projectile which remains completely stable in its trajectory and whose swirl is correspondingly small.

Das erfindungsgemässe Geschoss, mit dem diese Aufgabe gelöst wird, ist dadurch gekennzeichnet, dass der Geschosskörper 10 im Treibspiegel 19 drehbar gelagert ist und dass das Gewinde 11,20 die Drehrichtung des Rohrdralles hat und die Grösse des Gewindesteigungswinkels α dem Gleitreibungswinkel µ zwischen Geschosskörper 10 und Treibspiegel 19 annähernd entspricht.The projectile according to the invention, with which this object is achieved, is characterized in that the projectile body 10 is rotatably mounted in the sabot 19 and that the thread 11, 20 has the direction of rotation of the tubular twist and the size of the thread pitch angle α, the sliding friction angle μ between the projectile body 10 and Sabot 19 approximately corresponds.

Das erfindungsgemässe Treibspiegelgeschoss hat folgende Vorteile:

  • a) Es ist eine saubere Trennung des Treibspiegels vom Geschosskörper gewährleistet, da der Treibspiegel den vollen Drall erhält und unter der Wirkung der Zentrifugalkraft radial wegfliegt, sobald das Geschoss das Waffenrohr verlässt.
  • b) Dem Geschosskörper kann jeder beliebige Drall erteilt werden, zwischen 0 bis zum maximalen Drall, der gleich gross ist, wie der Drall des Treibspiegels, d.h., dem Geschosskörper kann der, für seine Stabilität während des Fluges, günstigste Drall erteilt werden.
  • c) Es kann Treibgas unter die Haube geleitet werden, um die Haube beim Austritt des Geschosses aus dem Waffenrohr abzusprengen.
The sabot projectile according to the invention has the following advantages:
  • a) A clean separation of the sabot from the projectile body is guaranteed, since the sabot receives the full swirl and, under the action of the centrifugal force, flies away radially as soon as the projectile leaves the weapon barrel.
  • b) The projectile body can be given any swirl, between 0 and the maximum swirl, which is the same size as the swirl of the sabot, ie the projectile body can be given the most favorable swirl for its stability during flight.
  • c) Propellant gas can be passed under the hood to detonate the hood when the projectile emerges from the gun barrel.

Ein Ausführungsbeispiel des erfindungsgemässen Treibspiegelgechosses ist im folgenden, anhand der beigefügten Zeichnung, ausführlich beschrieben.An embodiment of the sabot projectile according to the invention is described in detail below with reference to the accompanying drawing.

Es zeigt:

  • Fig.1 einen Längsschnitt durch das erfindungsgemässe Treibspiegelgeschoss,
  • Fig.2 eine perspektivische Darstellung des hinteren Geschosskörperabschnittes.
It shows:
  • 1 shows a longitudinal section through the sabot projectile according to the invention,
  • 2 shows a perspective view of the rear projectile body section.

Dieses Treibspiegelgeschoss enthält:
- einen pfeilförmigen Geschosskörper 10, der auch als Schwermetallkern bezeichnet wird und der im mittleren Abschnitt ein Gewinde, vorzugsweise ein Sägegewinde 11 aufweist. Dieses Gewinde 11 weist einen Steigungswinkel α auf, der auf der Zeichnung dargestellt ist und dessen Bedeutung weiter unten erläutert ist.
- eine Hülse 12, an der sechs Stabilisierungsflügel 13 befestigt sind. Diese Hülse 12 ist auf einen Zapfen 14 des Geschosskörpers 10 aufgesetzt, der sich am hinteren Ende des Geschosskörpers befindet. Der Zapfen 14 weist Rillen 15 auf, in welche die Hülse 1k hineingepresst wird, wodurch sie auf dem Zapfen 14 befestigt ist.
- eine Leuchtsatzhülse 16, mit einem Leuchtsatz 17, befindet sich im hinteren Ende der genannten Hülse 12.This sabot bullet contains:
- An arrow-shaped projectile body 10, which is also referred to as a heavy metal core and which has a thread, preferably a saw thread 11, in the central section. This thread 11 has a pitch angle α, which is shown in the drawing and the meaning of which is explained below.
- A sleeve 12 on which six stabilizing wings 13 are attached. This sleeve 12 is placed on a pin 14 of the projectile body 10, which is located at the rear end of the projectile body. The pin 14 has grooves 15 into which the sleeve 1k is pressed, as a result of which it is fastened on the pin 14.
- A light set sleeve 16, with a light set 17, is located in the rear end of the sleeve 12.

Eine Bördelung 18 verhindert, dass die Leuchtsatzhülse 16 mit dem Leuchtsatz 17 aus der Hülse 12 herausfällt.
- einen Treibspiegel 19, der auch als Treibkäfig bezeichnet wird, der ein Innengewinde 20 aufweist und der auf das Gewinde 11 des Geschosskörpers 10 aufgeschraubt ist. Dieser Treibspiegel 19 weist Rillen 21 auf, welche eine Labyrinthdichtung bilden, deren Zweck weiter unten erläutert ist.
- zwei Stifte 22, welche durch Radialbohrungen im Treibspiegel 19, in entsprechende Sacklöcher am Geschosskörper 10 hineinragen und den Treibspiegel 19 gegen eine Drehung, relativ zum Geschosskörper 10, sichern. Diese Stifte 22 werden durch eine nicht dargestellte Patronenhülse gehalten und durch den Drall radial verschoben, so dass der Geschosskörper 10 sich bereits im Waffenrohr, relativ zum Treibspiegel 19, drehen kann, wie weiter unten erläutert.
- einen Treibspiegelmantel 23, der den Treibspiegel 19 umgibt und der zwei Rohrführungssektionen 24 aufweist, welche in nicht dargestellte Drallnuten des Waffenrohres eindringen und dem Treibspiegelgeschoss beim Abschuss einen Drall erteilen.Der Treibspiegelmantel 23 besteht vorzugsweise aus Kunststoff.
- eine Haube 25, die durch einen Schnappverschluss 26 am Treibspiegelmantel 23 befestigt ist. Diese, vorne geschlossene Haube ist hohl und kann über die erwähnte Labyrinthdichtung und eine Längsnut 27 derart mit Treibgas gefüllt werden,dass sie beim Austritt aus dem Waffenrohr durch den Gasdruck aufgerissen wird.
- eine Ogive 28 oder einen Kegelstumpf, der sich am vorderen Ende des Geschosskörpers 10 befindet und in die erwähnte Haube 25 hineinragt.A flange 18 prevents the light set sleeve 16 with the light set 17 from falling out of the sleeve 12.
- A sabot 19, which is also referred to as a sabot, which has an internal thread 20 and which is screwed onto the thread 11 of the projectile body 10. This sabot 19 has grooves 21 which form a labyrinth seal, the purpose of which is explained below.
- Two pins 22 which through radial holes in Sabot 19 project into corresponding blind holes on the projectile body 10 and secure the sabot 19 against rotation relative to the projectile body 10. These pins 22 are held by a cartridge case, not shown, and are radially displaced by the swirl, so that the projectile body 10 can already rotate in the weapon barrel, relative to the sabot 19, as explained further below.
- A sabot jacket 23 which surrounds the sabot 19 and which has two pipe guide sections 24 which penetrate into swirl grooves (not shown) of the weapon barrel and impart a swirl to the sabot projectile when fired. The sabot jacket 23 is preferably made of plastic.
- A hood 25 which is fastened to the sabot jacket 23 by a snap lock 26. This hood, which is closed at the front, is hollow and can be filled with propellant gas via the aforementioned labyrinth seal and a longitudinal groove 27 in such a way that it is torn open by the gas pressure when it exits the weapon barrel.
- An ogive 28 or a truncated cone, which is located at the front end of the projectile body 10 and protrudes into the hood 25 mentioned.

Das beschriebene Treibspiegelgeschoss ragt in eine nicht dargestellt Patronenhülse hinein. Am Treibspiegel 19 sind zwei sogenannte Patronierungsrillen 29 vorgesehen, an denen die Patronenhülse mit dem Patronenhülsenmund befestigt wird.The sabot projectile described protrudes into a cartridge case, not shown. On the sabot 19, two so-called cartridge grooves 29 are provided, to which the cartridge case is attached with the cartridge case mouth.

Die Wirkungsweise des beschriebenen Treibspiegelgeschosses ist wie folgt:
Der Patronenhülsenmund der nicht dargestellten Patronenhülse ragt in die Patronierungsrillen 29 und verhindert, dass das Treibspiegelgeschoss aus der Patronenhülse herausfallen kann. Die beiden Stifte verhindern, dass sich der Geschosskörper 10 im Treibspiegel 19 drehen kann.The operation of the sabot projectile described is as follows:
The cartridge case mouth of the cartridge case, not shown, protrudes into the cartridge grooves 29 and prevents the sabot projectile from the Cartridge case can fall out. The two pins prevent the projectile body 10 from rotating in the sabot 19.

Beim Abschuss des Geschosses verschieben sich die Stifte 22 durch Zentrifugalkräfte radial soweit nach aussen, dass sich der Geschosskörper 10 im Treibspiegel 19 drehen kann, d.h. es wird ein Drehschlupf zwischen Geschosskörper 10 und Treibspiegel 19 ermöglicht.When the projectile is fired, the pins 22 move radially outward by centrifugal forces to such an extent that the projectile body 10 can rotate in the sabot 19, i.e. a rotational slip between the projectile body 10 and the sabot 19 is made possible.

Die Grösse des Steigungswinkels α am Sägegewinde 11 und die Drehrichtung sind so gewählt, dass die Reibungskräfte zwischen Geschosskörper 10 und Treibspiegel 19 nicht ausreichen, um die Drallbeschleunigung vom Treibspiegel 19 vollständig auf den Geschosskörper 10 zu übertragen. Dadurch wird erreicht, dass der Geschosskörper 10 mit einem kleineren Drall oder ohne Drall aus dem Waffenrohr austritt, als der Treibspiegel 19.The size of the pitch angle α on the saw thread 11 and the direction of rotation are selected such that the frictional forces between the projectile body 10 and the sabot 19 are not sufficient to transmit the swirl acceleration from the sabot 19 completely to the projectile body 10. It is thereby achieved that the projectile body 10 emerges from the weapon barrel with a smaller swirl or without swirl than the sabot 19.

Die Erfindung besteht nun darin, die Grösse des Steigungswinkels α derart zu wählen, dass die Drehung des Geschosskörpers 10 der optimalen Drehzahl für ein Pfeilgeschoss entspricht, um einen stabilen Flug des Geschosskörpers zu gewährleisten. Bei grossem Drall ist ein stabiler Flug bei Pfeilgeschossen nicht gewährleistet.The invention now consists in choosing the size of the pitch angle α such that the rotation of the projectile body 10 corresponds to the optimum speed for an arrow projectile in order to ensure a stable flight of the projectile body. With a large swirl, a stable flight on arrow projectiles is not guaranteed.

Zwischen dem Aussengewinde 11 des Geschosskörpers 10 und dem Innengewinde 20 des Treibspiegels 19 wird vorzugsweise ein Gleitlack eingefügt, um eine konstante Reibungskraft zu gewährleisten.A lubricating varnish is preferably inserted between the external thread 11 of the projectile body 10 and the internal thread 20 of the sabot 19 to ensure a constant frictional force.

Vorzugsweise stützen sich die im Treibspiegel 19 befindlichen Stifte 22 auf Abflachungen 31 am Geschosskörper 10 ab und ragen nicht, wie weiter oben beschrieben, in Sacklöcher im Geschosskörper 10 hinein. Denn bei solchen Sacklöchern besteht die Gefahr, dass sich jeder Stift 22 in diesem Sackloch verklemmt, bevor er durch den Drall herausgeschoben wird. Hingegen ist die Abflachung 31 in der Lage, den Stift 22 selber radial nach aussen zu verschieben, sobald sich der Geschosskörper 10 relativ zum Treibspiegel 19 verschiebt.The pins 22 located in the sabot 19 are preferably supported on flats 31 on the projectile body 10 and do not protrude into blind holes in the projectile body 10, as described above. Because with such blind holes there is a risk that each pin 22 is jammed in this blind hole before being pushed out by the swirl. On the other hand, the flat 31 is able to move the pin 22 itself radially outwards as soon as the projectile body 10 moves relative to the sabot 19.

Statt der erwähnten sechs Stabilisierungsflügel 13 können auch bloss 2, 3 oder 4 solche Flügel 13 vorhanden sein.Instead of the six stabilizing wings 13 mentioned, only 2, 3 or 4 such wings 13 can also be present.

Claims (4)

1. Treibspiegelgeschoss (9), insbesondere ein Pfeilgeschoss, enthaltend:
- einen Geschosskörper (10), insbesondere pfeilförmig, mit einem Aussengewinde (11)), insbesondere Sägegewinde;
- einen Treibspiegel (19), insbesondere aus Leichtmetall, mit Sollbruchstellen (27), Patronierungsrillen (29) und einem Innengewinde (20), in welches der Geschosskörper (10) einschraubbar ist;
- einen Treibspiegelmantel (23), aus Kunststoff, mit Rohrführungssektionen (24) und Sollbruchstellen (27) und
- eine Kunststoffhaube (25),
dadurch gekennzeichnet, dass der Geschosskörper (10) im Treibspiegel (19) drehbar gelagert ist und dass das Gewinde (11,20) die Drehrichtung des Rohrdralles hat und die Grösse des Gewindesteigungswinkels (α ) dem Gleitreibungswinkel (µ ) zwischen Geschosskörper (10) und Treibspiegel (19) entspricht.1. sabot projectile (9), in particular an arrow projectile, comprising:
- a projectile body (10), in particular arrow-shaped, with an external thread (11)), in particular saw thread;
- A sabot (19), in particular made of light metal, with predetermined breaking points (27), cartridge grooves (29) and an internal thread (20) into which the projectile body (10) can be screwed;
- A sabot jacket (23), made of plastic, with pipe guide sections (24) and predetermined breaking points (27) and
- a plastic hood (25),
characterized in that the projectile body (10) is rotatably mounted in the sabot (19) and in that the thread (11, 20) has the direction of rotation of the pipe twist and the size of the thread pitch angle (α) the sliding friction angle (µ) between the projectile body (10) and Sabot (19) corresponds. 2. Treibspiegelgeschoss nach Anspruch 1, gekennzeichnet durch eine Labyrinthdichtung (21) und eine Treibgasführung (27) zum Wegsprengen der Haube (25) durch die Treibgase, beim Austritt des Geschosses.2. sabot projectile according to claim 1, characterized by a labyrinth seal (21) and a propellant gas guide (27) for blasting away the hood (25) by the propellant gases when the projectile emerges. 3. Treibspiegelgeschoss nach Anspruch 1, dadurch gekennzeichnet, dass zwischen dem Aussengewinde (11) des Geschosskörpers (10) und dem Innengewinde (20) des Treibspiegels (19) ein Gleitlack vorhanden ist, um eine konstante Reibungskraft zu gewährleisten.3. sabot projectile according to claim 1, characterized in that a lubricating varnish is present between the external thread (11) of the projectile body (10) and the internal thread (20) of the sabot (19) in order to ensure a constant frictional force. 4. Treibspiegelgeschoss nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Stift (22) sich in einer Radialbohrung (30) des Treibspiegels (19) befindet und sich auf einer Abflachung (31) des Geschosskörpers (10) abstützt, um eine unbeabsichtigte Drehung des Geschosskörpers (10) im Treibspiegel (19) zu verhindern.4. sabot projectile according to claim 1, characterized in that at least one pin (22) is located in a radial bore (30) of the sabot (19) and is supported on a flattened portion (31) of the projectile body (10) to prevent unintentional rotation of the Prevent the projectile body (10) in the sabot (19).
EP87105617A 1986-07-07 1987-04-15 Sabot projectile, especially an arrow-type projectile Expired - Lifetime EP0255570B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2732/86 1986-07-07
CH273286 1986-07-07

Publications (2)

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EP0255570A1 true EP0255570A1 (en) 1988-02-10
EP0255570B1 EP0255570B1 (en) 1990-05-23

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EP87105617A Expired - Lifetime EP0255570B1 (en) 1986-07-07 1987-04-15 Sabot projectile, especially an arrow-type projectile

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US (1) US4733612A (en)
EP (1) EP0255570B1 (en)
JP (1) JPS6315099A (en)
DE (1) DE3762922D1 (en)
NO (1) NO161403C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195419B (en) * 1985-03-26 1990-01-10 Diehl Gmbh & Co Projectile
FR2654506A1 (en) * 1989-11-11 1991-05-17 Rheinmetall Gmbh SUB-CALIBER PROJECTILE ASSEMBLY.
FR2660993A1 (en) * 1990-04-14 1991-10-18 Rheinmetall Gmbh UNDER CALIBER PROJECTILE INCLUDING A PUSH SHOE.
FR2665765A1 (en) * 1990-08-13 1992-02-14 Giat Ind Sa STOP DEVICE IN ROTATION BETWEEN A BAR AND A SHAFT.

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US4901646A (en) * 1987-07-20 1990-02-20 Pacific Armatechnica Corporation Fin-stabilized subcaliber projectile
US5223667A (en) * 1992-01-21 1993-06-29 Bei Electronics, Inc. Plural piece flechettes affording enhanced penetration
JP2008057945A (en) * 2006-08-30 2008-03-13 Sefa-Japan:Kk Cartridge for gun having single body or composite body sabot allowed to fire from smooth barrel or barrel with rifling and having sufficient hit accuracy
JP5325467B2 (en) * 2008-06-10 2013-10-23 株式会社Ｉｈｉエアロスペース Bullet
US10502515B2 (en) * 2017-01-17 2019-12-10 Raytheon Company Launch piston brake

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US2996011A (en) * 1944-06-30 1961-08-15 Henry F Dunlap Projectile
US3000316A (en) * 1944-07-10 1961-09-19 Henry F Dunlap Projectile
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US3738279A (en) * 1970-07-24 1973-06-12 Us Navy Sabot for sub-calibre projectile
US4469027A (en) * 1983-04-15 1984-09-04 The United States Of America As Represented By The Secretary Of The Army Armor piercing ammunition having interlocking means

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US2996011A (en) * 1944-06-30 1961-08-15 Henry F Dunlap Projectile
US3000316A (en) * 1944-07-10 1961-09-19 Henry F Dunlap Projectile
DE2007822A1 (en) * 1969-03-17 1970-09-24 Brevets Aero Mecaniques Grenade with an under-calibrated core
US3738279A (en) * 1970-07-24 1973-06-12 Us Navy Sabot for sub-calibre projectile
US4469027A (en) * 1983-04-15 1984-09-04 The United States Of America As Represented By The Secretary Of The Army Armor piercing ammunition having interlocking means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195419B (en) * 1985-03-26 1990-01-10 Diehl Gmbh & Co Projectile
FR2654506A1 (en) * 1989-11-11 1991-05-17 Rheinmetall Gmbh SUB-CALIBER PROJECTILE ASSEMBLY.
FR2660993A1 (en) * 1990-04-14 1991-10-18 Rheinmetall Gmbh UNDER CALIBER PROJECTILE INCLUDING A PUSH SHOE.
FR2665765A1 (en) * 1990-08-13 1992-02-14 Giat Ind Sa STOP DEVICE IN ROTATION BETWEEN A BAR AND A SHAFT.
EP0471616A1 (en) * 1990-08-13 1992-02-19 GIAT Industries Rotational motion prevention device between an arrow-type projectile and its support
US5138951A (en) * 1990-08-13 1992-08-18 Giat Industries Device for stopping rotation between a bar and a sabot

Also Published As

Publication number Publication date
DE3762922D1 (en) 1990-06-28
EP0255570B1 (en) 1990-05-23
JPS6315099A (en) 1988-01-22
NO872014D0 (en) 1987-05-14
NO872014L (en) 1988-01-08
NO161403C (en) 1989-08-09
US4733612A (en) 1988-03-29
NO161403B (en) 1989-05-02

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