EP0389845A1 - Sabot for spin-stabilized sub-calibre projectiles - Google Patents

Sabot for spin-stabilized sub-calibre projectiles Download PDF

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Publication number
EP0389845A1
EP0389845A1 EP90104487A EP90104487A EP0389845A1 EP 0389845 A1 EP0389845 A1 EP 0389845A1 EP 90104487 A EP90104487 A EP 90104487A EP 90104487 A EP90104487 A EP 90104487A EP 0389845 A1 EP0389845 A1 EP 0389845A1
Authority
EP
European Patent Office
Prior art keywords
pot
drive pot
sabot
drive
projectile
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
EP90104487A
Other languages
German (de)
French (fr)
Other versions
EP0389845B1 (en
Inventor
Heinrich Brand
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 EP0389845A1 publication Critical patent/EP0389845A1/en
Application granted granted Critical
Publication of EP0389845B1 publication Critical patent/EP0389845B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F42B14/064—Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base

Definitions

  • the invention relates to a drive pot for spin-stabilized sub-caliber projectiles.
  • a plastic drive pot for spin-stabilized sub-caliber projectiles is known.
  • the drive pot has a circumferential groove and axial slots in the area of a projectile rear in its wall enveloping the projectile, the slots projecting from the front end of the drive pot to almost the circumferential groove.
  • the section of the thin-walled drive pot should still be divided into four parts in the weapon barrel because of the four slots, which laterally move away when the gun barrel emerges from the gun barrel.
  • the bottom, closed part of the drive pot has a greater air resistance than the projectile after leaving the gun barrel, so that the drive pot is separated from the projectile. After detaching the floating pot remnant, it flies a larger distance directly behind the projectile.
  • a sabot for spin-stabilized lower-caliber projectiles in which a retaining ring with part of its length holds four wall sections together at the rear. These wall sections keep a projectile in a central position to the sabot. After the sabot and the projectile have been fired, the retaining ring tears after exiting the weapon barrel due to the centrifugal forces of the wall sections. Since the locking ring is not affected by the fields of the drawn weapon barrel when it is fired, it can happen that, due to the relatively high tensile strength of the locking ring, the sabot detachment occurs very late and thereby adversely affects the accuracy of the projectile.
  • the object of the invention is to propose a drive pot for spin-stabilized lower-caliber projectiles which separates from the projectile immediately after the weapon barrel muzzle.
  • the fields of the drawn weapon barrel advantageously cut the necessary predetermined breaking points into the guide band.
  • This ensures that the drive pot including the pot sleeve is torn open several times immediately after the pipe mouth due to the centrifugal force of the segments of the drive pot.
  • the segments can consist of steel, aluminum, titanium or plastic.
  • the guide band has predetermined breaking points exactly above the dividing joints of the drive pot. Irrespective of this, a trouble-free detachment of the segments of the drive pot is ensured in the case of offset predetermined breaking points with respect to the dividing joints. Further advantages lie in the simple and inexpensive manufacture of the drive pot with the guide belt.
  • the drive pot advantageously consists of three segments.
  • a thin-walled, metallic pot sleeve on the rear is provided for sealing the dividing joints. This reliably prevents leakages.
  • a drive pot 1 encloses a projectile tail 2.
  • the drive pot 1 has a guide band 4 with a rear cone 5 in a groove 3.
  • a pot sleeve 6 made of aluminum is crimped or glued into the cone 5.
  • the drive pot 1 consists of three segments 7. Between these there are dividing joints 8.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

A fault-free release of a sabot (1) from a spin-stabilised subcalibre projectile immediately after the muzzle of a weapon barrel is obtained by means of a multi-part sabot (1). For this, the sabot (1) has segments (7) which are separated from one another by parting lines (8). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Treibtopf für drallstabili­sierte Unterkalibergeschosse.The invention relates to a drive pot for spin-stabilized sub-caliber projectiles.

Aus der US-PS 3,311,061 ist ein Treibtopf aus Kunststoff für drall­stabilisierte Unterkalibergeschosse bekannt. Der Treibtopf weist im Bereich eines Geschoßhecks in seiner, das Geschoß einhüllenden Wand eine Umfangsnut und axiale Schlitze auf, wobei die Schlitze vom vor­deren Ende des Treibtopfes bis nahezu der Umfangsnut ragen. Beim Ab­schuß des Treibtopfes soll noch im Waffenrohr der Abschnitt des dünn­wandigen Treibtopfes aufgrund der vier Schlitze in vier Teile geteilt werden, die sich aufgrund der Drallwirkung beim Austritt aus dem Waf­fenrohr seitlich entfernen. Der bodenseitige, geschlossene Teil des Treibtopfes weist nach verlassen des Waffenrohres einen größeren Luft­widerstand auf als das Geschoß, so daß der Treibtopf vom Geschoß ge­trennt wird. Nach dem Ablösen des Treibtopfrestes fliegt dieser eine größere Strecke direkt hinter dem Projektil her. Es gibt Einsatzfälle, insbesondere bei Einsätzen auf kleine Entfernungen, in denen dieser Umstand das Projektilverhalten beeinträchtigt.From US-PS 3,311,061 a plastic drive pot for spin-stabilized sub-caliber projectiles is known. The drive pot has a circumferential groove and axial slots in the area of a projectile rear in its wall enveloping the projectile, the slots projecting from the front end of the drive pot to almost the circumferential groove. When the drive pot is fired, the section of the thin-walled drive pot should still be divided into four parts in the weapon barrel because of the four slots, which laterally move away when the gun barrel emerges from the gun barrel. The bottom, closed part of the drive pot has a greater air resistance than the projectile after leaving the gun barrel, so that the drive pot is separated from the projectile. After detaching the floating pot remnant, it flies a larger distance directly behind the projectile. There are cases of application, particularly in the case of missions at small distances, in which this fact impairs the projectile behavior.

Hierzu zählen folgende Möglichkeiten:

  • 1. Funktionen im oder am Fluggeschoß, die zu starker Verzögerung führen; der Treibspiegel trifft auf das verzögerte Flugge­schoß und führt zu Schäden.
  • 2. Tritt das Fluggeschoß nach der Abtrennung des Treibspiegels in ein Medium höherer Dichte, so kann das verzögerte Fluggeschoß vom Treibspiegel getroffen und in seiner "Flugbahn" gestört werden.
These include the following options:
  • 1. Functions on or on the flight floor that lead to severe deceleration; the sabot hits the delayed missile and causes damage.
  • 2. If the missile enters a medium of higher density after the sabot has been separated, the delayed missile can be hit by the sabot and its "trajectory" can be disturbed.

Weiterhin ist aus der DE-05 20 41 877 ein Treibspiegel für drallsta­bilisierte Unterkalibergeschosse bekannt, bei dem ein Sicherungsring mit einem Teil seiner Länge vier Wandabschnitte heckseitig zusammen­hält. Diese Wandabschnitte halten ein Projektil in zentrischer Lage zum Treibspiegel. Nach dem Abschuß des Treibspiegels und des Projek­tils reißt der Sicherungsring nach dem Austritt aus dem Waffenrohr aufgrund der Fliehkräfte der Wandabschnitte. Nachdem der Sicherungs­ring beim Abschuß von den Feldern des gezogenen Waffenrohres nicht beeinflußt wird, kann es vorkommen, daß aufgrund relativ hoher Zug­festigkeit des Sicherungsrings die Ablösung des Treibspiegels sehr spät erfolgt und dadurch die Zielgenauigkeit des Projektils nachteilig beeinflußt.Furthermore, from DE-05 20 41 877 a sabot for spin-stabilized lower-caliber projectiles is known, in which a retaining ring with part of its length holds four wall sections together at the rear. These wall sections keep a projectile in a central position to the sabot. After the sabot and the projectile have been fired, the retaining ring tears after exiting the weapon barrel due to the centrifugal forces of the wall sections. Since the locking ring is not affected by the fields of the drawn weapon barrel when it is fired, it can happen that, due to the relatively high tensile strength of the locking ring, the sabot detachment occurs very late and thereby adversely affects the accuracy of the projectile.

Der Erfindung liegt die Aufgabe zugrunde, einen Treibtopf für drall­stabilisierte Unterkalibergeschosse vorzuschlagen, der unmittelbar nach der Waffenrohrmündung sich vom Geschoß trennt.The object of the invention is to propose a drive pot for spin-stabilized lower-caliber projectiles which separates from the projectile immediately after the weapon barrel muzzle.

Die Erfindung löst diese Aufgabe entsprechend den kennzeichnenden Merkmalen des Ansprüches 1.The invention solves this problem in accordance with the characterizing features of claim 1.

Vorteilhafte Weiterbildungen in der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous developments in the invention can be found in the subclaims.

Vorteilhaft schneiden beim Abschuß die Felder des gezogenen Waffen­rohres die notwendigen Sollbruchstellen in das Führungsband. Damit ist sichergestellt, daß der Treibtopf einschließlich der Topfhülse unmittelbar nach der Rohrmündung aufgrund der Fliehkraftwirkung der Segmente des Treibtopfes mehrfach aufgerissen wird. Die Segmente können dabei aus Stahl, Aluminium, Titan oder Kunststoff bestehen. Im Idealfall weist das Führungsband nach dem Durchgang durch das Waffenrohr genau über den Teilungsfugen des Treibtopfes Sollbruch­stellen auf. Auch unabhängig davon ist bei versetzten Sollbruch­stellen in bezug auf die Teilungsfugen ein störungsfreies Ablösen der Segmente des Treibtopfes gewährleistet. Weitere Vorteile liegen in der einfachen und kostengünstigen Herstellung des Treibtopfes mit dem Führungsband begründet.When firing, the fields of the drawn weapon barrel advantageously cut the necessary predetermined breaking points into the guide band. This ensures that the drive pot including the pot sleeve is torn open several times immediately after the pipe mouth due to the centrifugal force of the segments of the drive pot. The segments can consist of steel, aluminum, titanium or plastic. Ideally, after passing through the weapon barrel, the guide band has predetermined breaking points exactly above the dividing joints of the drive pot. Irrespective of this, a trouble-free detachment of the segments of the drive pot is ensured in the case of offset predetermined breaking points with respect to the dividing joints. Further advantages lie in the simple and inexpensive manufacture of the drive pot with the guide belt.

Nach dem Anspruch 2 besteht der Treibtopf vorteilhaft aus drei Seg­menten.According to claim 2, the drive pot advantageously consists of three segments.

Entsprechend dem Anspruch 3 ist zur Abdichtung der Teilungsfugen eine heckseitige dünnwandige, metallische Topfhülse vorgesehen. Leckagen werden dadurch sicher vermieden.According to claim 3, a thin-walled, metallic pot sleeve on the rear is provided for sealing the dividing joints. This reliably prevents leakages.

Nach dem Anspruch 4 liegt ein vollständiger, heckseitig gasdich­ter Abschluß des Treibtopfes vor. Daneben ist die gasdichte Ver­bindung mit dem Führungsring in einfacher Weise herstellbar.According to claim 4, there is a complete, gas-tight closure of the drive pot at the rear. In addition, the gas-tight connection to the guide ring can be produced in a simple manner.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung darge­stellt.An embodiment of the invention is shown in the drawing.

Es zeigt:

  • Fig. 1 Einen Treibtopf im Teilschnitt
  • Fig. 2 Den Treibtopf nach Fig. 1 gemäß der Schnittlinie II/II
It shows:
  • Fig. 1 A drive pot in partial section
  • Fig. 2, the drive pot of FIG. 1 along the section line II / II

Ein Treibtopf 1 umschließt ein Projektilheck 2. Der Treibtopf 1 weist in einer Nut 3 ein Führungsband 4 mit einem heckseitigen Ko­nus 5 auf.
Eine Topfhülse 6 aus Aluminium ist in den Konus 5 eingebördelt oder aufgeklebt. Der Treibtopf 1 besteht aus drei Segmenten 7. Zwischen diesen sind Teilungsfugen 8.A drive pot 1 encloses a projectile tail 2. The drive pot 1 has a guide band 4 with a rear cone 5 in a groove 3.
A pot sleeve 6 made of aluminum is crimped or glued into the cone 5. The drive pot 1 consists of three segments 7. Between these there are dividing joints 8.

Beim Abschuß schneiden die Felder eines nicht gezeichneten, gezo­genen Waffenrohres die notwendigen Sollbruchstellen, siehe die strichpunktiert gezeichneten Linien 10, in das Führungsband 4. Der Treibtopf 1 zerfällt unmittelbar nach der Rohrmündung des Waffen­rohres und stört das Verhalten des Projektils nicht weiter.When firing, the fields of a not drawn, drawn weapon barrel cut the necessary predetermined breaking points, see the dash-dotted lines 10, into the guide band 4. The drive pot 1 disintegrates immediately after the barrel opening of the weapon barrel and does not further disturb the behavior of the projectile.

Claims (3)

1. Treibtopf (1) für drallstabilisierte Unterkalibergeschosse mit einem Treibtopf (1), der im Bereich eines Geschosses (2) in seiner das Geschoß einhüllenden Wand eine Umfangsnut (3) und axiale Schlitze (8) aufweist, wobei die Schlitze (8) vom voderen Ende des Treibtopfes (1) bis nahe zu der Umfangsnut (3) ragen,
dadurch gekennzeichnet,
daß in der Umfangsnut (3) ein separates Führungsband (4) angeord­net ist,
der Treibtopf (1) aus wenigstens zwei, durch das Führungsband (4) gehaltene Segmente (7) mit dazwischenliegenden Teilungsfugen (8) besteht und der gasdruckseitige Abschnitt des Treibtopfes (1) eine dünnwandige Topfhülse (1) aus Aluminium trägt.1. drive pot (1) for swirl-stabilized lower-caliber projectiles with a drive pot (1) which has a circumferential groove (3) and axial slots (8) in the area of a projectile (2) in its wall enveloping the projectile, the slots (8) from protrude from the end of the drive pot (1) up to close to the circumferential groove (3),
characterized,
that a separate guide band (4) is arranged in the circumferential groove (3),
the drive pot (1) consists of at least two segments (7) held by the guide band (4) with intermediate spacing joints (8) and the section of the drive pot (1) on the gas pressure side carries a thin-walled pot sleeve (1) made of aluminum. 2. Treibtopf nach Anspruch 1,
dadurch gekennzeichnet,
daß der Treibtopf (1) aus drei Segmenten (7) besteht.2. drive pot according to claim 1,
characterized,
that the drive pot (1) consists of three segments (7). 3. Treibtopf nach Anspruch 1,
dadurch gekennzeichnet,
daß die Topfhülse (6) mit dem Führungsband (4) formschlüssig verbunden ist.3. drive pot according to claim 1,
characterized,
that the pot sleeve (6) with the guide band (4) is positively connected.
EP90104487A 1989-03-25 1990-03-09 Sabot for spin-stabilized sub-calibre projectiles Expired - Lifetime EP0389845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909836A DE3909836A1 (en) 1989-03-25 1989-03-25 DRIVING POT FOR SWIRL-STABILIZED SUB-CALIBAR FLOORS
DE3909836 1989-03-25

Publications (2)

Publication Number Publication Date
EP0389845A1 true EP0389845A1 (en) 1990-10-03
EP0389845B1 EP0389845B1 (en) 1993-06-09

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ID=6377187

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EP90104487A Expired - Lifetime EP0389845B1 (en) 1989-03-25 1990-03-09 Sabot for spin-stabilized sub-calibre projectiles

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Country Link
EP (1) EP0389845B1 (en)
DE (2) DE3909836A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708097A1 (en) * 1993-07-22 1995-01-27 Giat Ind Sa Sealing belt for a projectile of medium and large calibre
EP0703428A1 (en) * 1994-09-21 1996-03-27 Rheinmetall Industrie GmbH Jettisonable sabot for sub-caliber projectiles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2041877A1 (en) * 1969-08-29 1971-03-04 Pacific Technica Corp Projectile launched through the barrel of a weapon
EP0048803A1 (en) * 1980-09-03 1982-04-07 Rheinmetall GmbH Sabot for a sub-calibre missile and manufacturing method for making the sabot
EP0072584A1 (en) * 1981-08-13 1983-02-23 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Connection between the casing and the rear part of a sabot for a projectile
EP0086711A1 (en) * 1982-02-16 1983-08-24 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Sabot for a subcaliber projectile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311061A (en) * 1964-06-25 1967-03-28 Ehoy C Roehrdanz Sabot
US3762332A (en) * 1971-07-08 1973-10-02 L Witherspoon Projectile sabot
US4296687A (en) * 1979-07-16 1981-10-27 The United States Of America As Represented By The Secretary Of The Army Segmented sabot projectile
DE3507408A1 (en) * 1985-03-02 1986-09-04 Diehl GmbH & Co, 8500 Nürnberg Spinning projectile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2041877A1 (en) * 1969-08-29 1971-03-04 Pacific Technica Corp Projectile launched through the barrel of a weapon
EP0048803A1 (en) * 1980-09-03 1982-04-07 Rheinmetall GmbH Sabot for a sub-calibre missile and manufacturing method for making the sabot
EP0072584A1 (en) * 1981-08-13 1983-02-23 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Connection between the casing and the rear part of a sabot for a projectile
EP0086711A1 (en) * 1982-02-16 1983-08-24 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Sabot for a subcaliber projectile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708097A1 (en) * 1993-07-22 1995-01-27 Giat Ind Sa Sealing belt for a projectile of medium and large calibre
EP0703428A1 (en) * 1994-09-21 1996-03-27 Rheinmetall Industrie GmbH Jettisonable sabot for sub-caliber projectiles

Also Published As

Publication number Publication date
DE3909836A1 (en) 1990-09-27
DE3909836C2 (en) 1992-08-27
EP0389845B1 (en) 1993-06-09
DE59001650D1 (en) 1993-07-15

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