EP0238817B1 - Sabot-type projectile having a tail part on which a socket of said sabot is fixed through a line of weakness - Google Patents

Sabot-type projectile having a tail part on which a socket of said sabot is fixed through a line of weakness Download PDF

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Publication number
EP0238817B1
EP0238817B1 EP87101709A EP87101709A EP0238817B1 EP 0238817 B1 EP0238817 B1 EP 0238817B1 EP 87101709 A EP87101709 A EP 87101709A EP 87101709 A EP87101709 A EP 87101709A EP 0238817 B1 EP0238817 B1 EP 0238817B1
Authority
EP
European Patent Office
Prior art keywords
sabot
projectile
tail
weakness
projectile core
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
EP87101709A
Other languages
German (de)
French (fr)
Other versions
EP0238817A1 (en
Inventor
Hanspeter Sigg
Harald Katzmann
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0238817A1 publication Critical patent/EP0238817A1/en
Application granted granted Critical
Publication of EP0238817B1 publication Critical patent/EP0238817B1/en
Expired 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 sabot projectile with a sabot rear, to which a fastening sleeve is attached via a predetermined breaking point, which is divided into segments by slots, with a projectile core which has a cylindrical middle part, a conical tip and a conical rear part, and with its rear part protrudes into the fastening sleeve of the sabot rear, and with a sabot jacket, which is anchored to the sabot rear, surrounds the fastening sleeve and is divided into segments by slots.
  • the projectile body has a circumferential groove on its rear part protruding into the fastening sleeve and on the inside of the fastening sleeve there are arranged cams which project radially inwards and protrude into the circumferential groove the mounting sleeve are in one piece.
  • a disadvantage of this known sabot projectile is the circumferential groove in the projectile body or projectile core, which undesirably increases the air resistance.
  • the sabot In another known sabot projectile of this type (see GB-A-576 217), the sabot consists of two parts which are connected to one another via a predetermined breaking point, these two parts being displaceable relative to one another when the projectile is fired under the action of the inertial forces.
  • the projectile body is supported on the rear part of the sabot and the front part of the sabot lies against the tip of the projectile body and consists of segments which disintegrate when the sabot emerges from the muzzle and release the projectile core.
  • the disadvantage of this other known sabot projectile is that the sabot rear must either be in two parts so that the Gechosskem can be fastened in the sabot rear, or that the sabot jacket must be used to fasten the projectile core to the sabot rear.
  • the object that is to be achieved by the invention is to create a sabot projectile in which the projectile core is fastened in the sabot rear regardless of the sabot jacket without circumferential grooves in the projectile core for fastening the projectile core in the sabot rear and without the sabot jacket Attachment of the projectile core in the sabot rear contributes somewhat.
  • this object is achieved in that the fastening sleeve of the sabot tail extends to the conical tip of the projectile core and bears against this conical tip in order to prevent the projectile core from falling out of the sabot tail.
  • This type of attachment of the projectile core to the sabot rear has the advantage that the sabot rear holds the projectile core directly without the aid of the sabot casing, which means that relatively light material can be used for this casing.
  • This sabot projectile 10 has a projectile core 11, which is preferably made of heavy metal.
  • This projectile core 11 has a conical rear part 12 and a conical tip 13.
  • the conical rear part 12 and the conical tip 13 consist of one piece with a cylindrical middle part 14.
  • the projectile core 11 is in an annular sabot rear 15, which is preferably made of light metal, in particular aluminum.
  • the sabot rear 15 has various circumferential grooves on the outside.
  • a first circumferential groove 16 serves essentially for anchoring a cartridge case, not shown, which is filled with a propellant charge.
  • a second circumferential groove 17 serves essentially to anchor a sabot jacket 18, which is preferably made of plastic.
  • the sleeve-shaped sabot jacket 18 consists of several segments which are connected to one another by thin webs 19. When the sabot projectile 10 emerges, the surface mirror jacket 18 disintegrates under the effect of the swirl, the individual segments along the webs 19 separating from one another.
  • the sabot jacket 18 has at its rear end a guide band 20 which projects into the above-mentioned circumferential groove 17 of the sabot rear 15 and serves to seal off the propellant gases and to anchor the sabot jacket 18 to the sabot rear 15.
  • a protective hood 21 is attached, which is preferably made of plastic and is anchored with a bead 22 in a circumferential groove 23 of the sabot jacket 18.
  • the sabot tail 15 has a fastening sleeve 24 which bears against the cylindrical middle part 14 and partly against the conical tip 13 of the projectile core 11.
  • the fastening sleeve 24 is divided by a number of slots 25 into segments which are fastened to the sabot rear part 15 via a predetermined breaking point 26.
  • This predetermined breaking point 26 is formed by an inner circumferential groove 27 which is so deep that the individual segments of the fastening sleeve 24 break off when the sabot projectile 10 is fired under the action of the swirl.
  • the fastening sleeve 24 has a ring 28 which is anchored in the sabot jacket 18. This ring 28 is also divided into individual segments by the slots 25 mentioned.
  • the individual segments of the fastening sleeve 24 can be bent radially to the extent that the projectile core 11 can be inserted into the fastening sleeve 24 from the front.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Air Bags (AREA)

Description

Die Erfindung betrifft ein Treibspiegelgeschoss mit einem Treibspiegelheck, an dem eine Befestigungshülse über eine Sollbruchstelle befestigt ist, die durch Schlitze in Segmente unterteilt ist, mit einem Geschosskern, der einen zylindrischen Mittelteil, eine kegelförmige Spitze und einen konischen Heckteil aufweist, und mit seinem hinteren Teil in die Befestigungshülse des Treibspiegelhecks hineinragt,und mit einem Treibspiegelmantel, der am Treibspiegelheck verankert ist, die Befestigungshülse umgibt und durch Schlitze in Segmente unterteilt ist.The invention relates to a sabot projectile with a sabot rear, to which a fastening sleeve is attached via a predetermined breaking point, which is divided into segments by slots, with a projectile core which has a cylindrical middle part, a conical tip and a conical rear part, and with its rear part protrudes into the fastening sleeve of the sabot rear, and with a sabot jacket, which is anchored to the sabot rear, surrounds the fastening sleeve and is divided into segments by slots.

Bei einem bekannten Treibspiegelgeschoss dieser Art (siehe GH-A-536 481) weist der Geschosskörper an seinem hinteren in die Befestigungshülse hineinragenden Teil eine Umfangsnut auf und an der Innenseite der Befestigungshülse sind radial nach innen gerichtete, in die Umfangsnut hineinragende Nocken angeordnet, welche mit der Befestigungshülse aus einem Stück sind.In a known sabot projectile of this type (see GH-A-536 481), the projectile body has a circumferential groove on its rear part protruding into the fastening sleeve and on the inside of the fastening sleeve there are arranged cams which project radially inwards and protrude into the circumferential groove the mounting sleeve are in one piece.

Nachteilig an diesem bekannten Treibspiegelgeschoss ist die Umfangsnut im Geschosskörper oder Geschosskern, die den Luftwiderstand in unerwünschter Weise vergrössert.A disadvantage of this known sabot projectile is the circumferential groove in the projectile body or projectile core, which undesirably increases the air resistance.

Bei einem anderen bekannten Treibspiegelgeschoss dieser Art (siehe GB-A-576 217) besteht der Treibspiegel aus zwei Teilen, welche miteinander über eine Sollbruchstelle verbunden sind, wobei sich diese beiden Teile beim Abschuss des Geschosses unter der Wirkung der Trägheitskräfte relativ zueinander verschieben lassen. Der Geschosskörper stützt sich auf den hinteren Teil des Treibspiegels ab und der vordere Teil des Treibspiegels liegt an der Spitze des Geschosskörpers an und besteht aus Segmenten, die beim Austritt des Treibspiegels aus der Waffenrohrmündung zerfallen und den Geschosskern freigeben.In another known sabot projectile of this type (see GB-A-576 217), the sabot consists of two parts which are connected to one another via a predetermined breaking point, these two parts being displaceable relative to one another when the projectile is fired under the action of the inertial forces. The projectile body is supported on the rear part of the sabot and the front part of the sabot lies against the tip of the projectile body and consists of segments which disintegrate when the sabot emerges from the muzzle and release the projectile core.

Nachteilig an diesem anderen bekannten Treibspiegelgeschoss ist, dass das Treibspiegelheck entweder zweiteilig sein muss, damit sich der Gechosskem im Treibspiegetheck befestigen lässt, oder dass der Treibspiegelmantel zur Befestigung des Geschosskernes am Treibspiegelheck mit verwendet werden muss.The disadvantage of this other known sabot projectile is that the sabot rear must either be in two parts so that the Gechosskem can be fastened in the sabot rear, or that the sabot jacket must be used to fasten the projectile core to the sabot rear.

Die Aufgabe, welche durch die Erfindung gelöst werden soll, besteht in der Schaffung eines Treibspiegelgeschosses, bei dem der Geschosskern im Treibspiegelheck unabhängig vom Treibspiegelmantel befestigt ist, ohne dass im Geschosskern Umfangsnuten zur Befestigung des Geschosskernes im Treibspiegelheck erforderlich sind, und ohne dass der Treibspiegelmantel zur Befestigung des Geschosskernes im Treibspiegelheck etwas beiträgt.The object that is to be achieved by the invention is to create a sabot projectile in which the projectile core is fastened in the sabot rear regardless of the sabot jacket without circumferential grooves in the projectile core for fastening the projectile core in the sabot rear and without the sabot jacket Attachment of the projectile core in the sabot rear contributes somewhat.

Erfindungsgemäss ist diese Aufgabe dadurch gelöst, dass sich die Befestigungshülse des Treibspiegelheckes bis an die kegelförmige Spitze des Geschosskernes erstreckt und an dieser kegelförmigen Spitze anliegt, um ein Herausfallen des Geschosskemes aus dem Treibsptegeiheck zu verhindern.According to the invention, this object is achieved in that the fastening sleeve of the sabot tail extends to the conical tip of the projectile core and bears against this conical tip in order to prevent the projectile core from falling out of the sabot tail.

Diese Art der Befestigung des Geschosskernes am Treibspiegelheck hat den Vorteil, dass das Treibspiegelheck direkt den Geschosskern festhält ohne Hilfe des Treibspiegelmantels, wodurch für diesen Mantel relativ leichtes Material verwendet werden kann.This type of attachment of the projectile core to the sabot rear has the advantage that the sabot rear holds the projectile core directly without the aid of the sabot casing, which means that relatively light material can be used for this casing.

Ein Ausführungsbeispiel des erfindungsgemässen Treibspiegelgeschosses ist im folgenden anhand der beigefügten Zeichnung ausführlich beschrieben. Die einzige Figur der Zeichnung zeigt einen Längsschnitt durch das erfindungsgemässe Treibspiegelgeschoss.An embodiment of the sabot projectile according to the invention is described in detail below with reference to the accompanying drawing. The only figure in the drawing shows a longitudinal section through the sabot projectile according to the invention.

Dieses Treibspiegelgeschoss 10 besitzt einen Geschosskern 11, der vorzugsweise aus Schwermetall hergestellt wird. Dieser Geschosskern 11 weist ein konisches Heckteil 12 und eine kegelförmige Spitze 13 auf. Der konische Heckteil 12 und die kegelförmige Spitze 13 bestehen aus einem Stück mit einem zylindrischen Mittelteil 14. Der Geschosskern 11 steckt in einem ringförmigen Treibspiegelheck 15, das vorzugsweise aus Leichtmetall, insbesondere Aluminium, hergestellt wird. Das Treibspiegelheck 15 weist aussen verschiedene Umfangsnuten auf. Eine erste Umfangsnut 16 dient im wesentlichen zur Verankerung einer nicht dargestellten Patronenhülse, welche mit einer Treibladung gefüllt ist. Eine zweite Umfangsnut 17 dient im wesentlichen zur Verankerung eines Treibspiegelmantels 18, der vorzugsweise aus Kunststoff hergestellt ist. Der hülsenförmige Treibspiegelmantel 18 besteht aus mehreren Segmenten, welche durch dünne Stege 19 miteinander verbunden sind. Beim Austritt des Treibspiegelgeschosses 10 zerfällt der Teibspiegelmantel 18 unter der Wirkung des Dralles, wobei sich die einzelnen Segmente entlang der Stege 19 voneinander trennen. Der Treibspiegelmantel 18 besitzt an seinem hinteren Ende ein Führungsband 20, das in die erwähnte Umfangsnut 17 des Treibspiegelheckes 15 hineinragt und zur Abdichtung gegenüber den Treibladungsgasen sowie zur Verankerung des Treibspiegelmantels 18 am Treibspiegelheck 15 dient. Am vorderen Ende des Treibspiegelmantels 18 ist eine Schutzhaube 21 befestigt, die vorzugsweise aus Kunststoff besteht und mit einem Wulst 22 in einer Umfangsnut 23 des Treibspiegelmantels 18 verankert ist. Das Treibspiegelheck 15 weist eine Befestigungshülse 24 auf, welche am zylindrischen Mittelteil 14 und teilweise an der kegelförmigen Spitze 13 des Geschosskernes 11 anliegt. Die Befestigungshülse 24 wird durch eine Anzahl Schlitze 25 in Segmente unterteilt, die über eine Sollbruchstelle 26 am Treibspiegelheckteil 15 befestigt sind. Diese Sollbruchstelle 26 wird durch eine innere Umfangsnut 27 gebildet, die so tief ist, dass beim Abschuss des Treibspiegelgeschosses 10 unter der Wirkung des 'Dralles die einzelnen Segmente der Befestigungshülse 24 abbrechen.This sabot projectile 10 has a projectile core 11, which is preferably made of heavy metal. This projectile core 11 has a conical rear part 12 and a conical tip 13. The conical rear part 12 and the conical tip 13 consist of one piece with a cylindrical middle part 14. The projectile core 11 is in an annular sabot rear 15, which is preferably made of light metal, in particular aluminum. The sabot rear 15 has various circumferential grooves on the outside. A first circumferential groove 16 serves essentially for anchoring a cartridge case, not shown, which is filled with a propellant charge. A second circumferential groove 17 serves essentially to anchor a sabot jacket 18, which is preferably made of plastic. The sleeve-shaped sabot jacket 18 consists of several segments which are connected to one another by thin webs 19. When the sabot projectile 10 emerges, the surface mirror jacket 18 disintegrates under the effect of the swirl, the individual segments along the webs 19 separating from one another. The sabot jacket 18 has at its rear end a guide band 20 which projects into the above-mentioned circumferential groove 17 of the sabot rear 15 and serves to seal off the propellant gases and to anchor the sabot jacket 18 to the sabot rear 15. At the front end of the sabot jacket 18, a protective hood 21 is attached, which is preferably made of plastic and is anchored with a bead 22 in a circumferential groove 23 of the sabot jacket 18. The sabot tail 15 has a fastening sleeve 24 which bears against the cylindrical middle part 14 and partly against the conical tip 13 of the projectile core 11. The fastening sleeve 24 is divided by a number of slots 25 into segments which are fastened to the sabot rear part 15 via a predetermined breaking point 26. This predetermined breaking point 26 is formed by an inner circumferential groove 27 which is so deep that the individual segments of the fastening sleeve 24 break off when the sabot projectile 10 is fired under the action of the swirl.

Am vorderen Ende weist die Befestigungshülse 24 einen Ring 28 auf, der im Treibspiegelmantel 18 verankert ist. Dieser Ring 28 ist durch die erwähnten Schlitze 25 ebenfalls in einzelne Segmente unterteilt. Zum Einsetzen des Geschosskernes 11 in das Treibspiegelheck 15 und in die Befestigungshülse 24 können die einzelnen Segmente der Befestigungshülse 24 soweit radial aufgebogen werden, dass sich der Geschosskern 11 von vorne in die Befestigungshülse 24 einschieben lässt.At the front end, the fastening sleeve 24 has a ring 28 which is anchored in the sabot jacket 18. This ring 28 is also divided into individual segments by the slots 25 mentioned. To insert the projectile core 11 into the sabot rear 15 and into the fastening sleeve 24, the individual segments of the fastening sleeve 24 can be bent radially to the extent that the projectile core 11 can be inserted into the fastening sleeve 24 from the front.

Claims (1)

  1. Sabot-type projectile (10) including a sabot tail (15) onto which is mounted a fixing sleeve (24) over a line of weakness (26) which is divided by slits (25) into segments; with a projectile core (11) which has a cylindrical centre section (14), a cone-shaped point (13) and a tail section (12), and the tail section of which enters into the fixing sleeve (24) of the sabot tail (15); and with a sabot cover (18) which is anchored onto the sabot tail (15), embraces the fixing sleeve (24) and is divided into segments by way of slits (25), characterised in that the fixing sleeve (24) of the sabot tail (15) extends to the cone-shaped point (13) of the projectile core (11) and abuts on this cone-shaped point (13) so as to prevent the projectile core (11) from falling out of the sabot tail (15).
EP87101709A 1986-03-21 1987-02-07 Sabot-type projectile having a tail part on which a socket of said sabot is fixed through a line of weakness Expired EP0238817B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1152/86 1986-03-21
CH115286 1986-03-21

Publications (2)

Publication Number Publication Date
EP0238817A1 EP0238817A1 (en) 1987-09-30
EP0238817B1 true EP0238817B1 (en) 1989-12-20

Family

ID=4203694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101709A Expired EP0238817B1 (en) 1986-03-21 1987-02-07 Sabot-type projectile having a tail part on which a socket of said sabot is fixed through a line of weakness

Country Status (8)

Country Link
US (1) US4750425A (en)
EP (1) EP0238817B1 (en)
JP (1) JPS62233698A (en)
CA (1) CA1290978C (en)
DE (1) DE3761234D1 (en)
IL (1) IL81896A0 (en)
NO (1) NO870925L (en)
ZA (1) ZA871983B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642161B1 (en) * 1989-01-26 1991-04-26 France Etat Armement UNDER CALIBER PROJECTILE AND METHOD FOR MOUNTING AND FIXING A SHELL BODY IN AN UNDER CALIBER PROJECTILE
DE4007103A1 (en) * 1990-03-07 1991-09-12 Rheinmetall Gmbh Sabot for sub-calibre projectile
US5323708A (en) * 1993-03-29 1994-06-28 Aerojet-General Corporation Clip-lock sabot cap
US6564720B1 (en) 2000-01-14 2003-05-20 Olin Corporation Sabot for a bullet
US10584947B1 (en) * 2017-01-11 2020-03-10 The United States Of America As Represented By The Secretary Of The Army Drag separating reduced dispersion pusher
US11402188B1 (en) 2020-08-28 2022-08-02 The United States Of America As Represented By The Secretary Of The Army Pyrotechnic delayed extended range shotgun munition
US11674782B1 (en) 2020-08-28 2023-06-13 The United States Of America As Represented By The Secretary Of The Army Piston actuated extended range projectile with segmented slip band

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927618A (en) * 1971-03-29 1975-12-23 Oerlikon Buehrle Ag Sabot projectile
US3808973A (en) * 1971-05-31 1974-05-07 Giulo Fiocchi Spa Self-propelling projectile for firearms
DE2336904C2 (en) * 1973-07-20 1983-12-22 Rheinmetall GmbH, 4000 Düsseldorf Sabot
DE2738121A1 (en) * 1977-08-24 1979-03-01 Rheinmetall Gmbh RIFLE CARTRIDGE WITH A PLASTIC COAT ENCLOSING THE LOWER CALIBER BULLET
DE2824703C2 (en) * 1978-06-06 1982-11-25 Diehl GmbH & Co, 8500 Nürnberg Bullet with a punch body
CH632086A5 (en) * 1978-08-08 1982-09-15 Oerlikon Buehrle Ag METHOD FOR PRODUCING A DRIVING MIRROR BULLET AND DRIVING MIRROR BULLET PRODUCED BY THE METHOD.
US4296687A (en) * 1979-07-16 1981-10-27 The United States Of America As Represented By The Secretary Of The Army Segmented sabot projectile
DE3131540C2 (en) * 1981-08-08 1986-02-13 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Sabot projectile
SE444984B (en) * 1982-05-28 1986-05-20 Bofors Ab DRIVING ORGANIZATION FOR UNDER-CALIBRATED ROTATION STABILIZED PROJECTIL
EP0104587A1 (en) * 1982-09-23 1984-04-04 Honeywell Inc. Subcaliber munition
US4648324A (en) * 1985-10-01 1987-03-10 Olin Corporation Projectile with enhanced target penetrating power

Also Published As

Publication number Publication date
NO870925L (en) 1987-09-22
JPS62233698A (en) 1987-10-14
DE3761234D1 (en) 1990-01-25
IL81896A0 (en) 1987-10-20
ZA871983B (en) 1987-11-25
EP0238817A1 (en) 1987-09-30
CA1290978C (en) 1991-10-22
NO870925D0 (en) 1987-03-05
US4750425A (en) 1988-06-14

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