EP0072584B1 - Liaison entre l'enveloppe et la partie arrière d'un sabot pour projectile - Google Patents

Liaison entre l'enveloppe et la partie arrière d'un sabot pour projectile Download PDF

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Publication number
EP0072584B1
EP0072584B1 EP82200847A EP82200847A EP0072584B1 EP 0072584 B1 EP0072584 B1 EP 0072584B1 EP 82200847 A EP82200847 A EP 82200847A EP 82200847 A EP82200847 A EP 82200847A EP 0072584 B1 EP0072584 B1 EP 0072584B1
Authority
EP
European Patent Office
Prior art keywords
sabot
projectile
circumferential groove
jacket
connection
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
EP82200847A
Other languages
German (de)
English (en)
Other versions
EP0072584B2 (fr
EP0072584A1 (fr
Inventor
Rudolf Rossmann
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
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Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0072584A1 publication Critical patent/EP0072584A1/fr
Application granted granted Critical
Publication of EP0072584B1 publication Critical patent/EP0072584B1/fr
Publication of EP0072584B2 publication Critical patent/EP0072584B2/fr
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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 connection between the sabot jacket and the sabot rear of a sabot projectile with a circumferential groove on the sabot rear, into which a flange of the sabot jacket protrudes, to form a connection between the sabot jacket and sabot rear, which on the one hand resists the mechanical forces during firing and on the other hand is gas-tight.
  • connection between the sabot jacket and the sabot rear is designed in such a way that, with large mechanical forces and high gas pressure, there is a risk that the sabot jacket may prematurely detach itself from the sabot when the projectile is fired replaces or that the connection is not up to the high gas pressure, ie is not sufficiently gas-tight.
  • a higher cadence of the firearm results in greater acceleration and deceleration forces when the cartridges are fed to the weapon, which means that there is a risk that the connection between the sabot rear and sabot jacket will be damaged even before the bullet enters the weapon.
  • the cartridge case is attached to a circumferential groove of the projectile or the sabot rear.
  • This circumferential groove the greater the forces required to eject the projectile from the cartridge case, so that the gas pressure at the moment when the projectile emerges from the cartridge case is also greater. For this reason, greater demands are also made on the gas-tight connection between the sabot jacket and the sabot rear.
  • the object is achieved to create a connection between the sabot jacket and sabot rear end, which can withstand great mechanical forces and large gas pressure when the sabot projectile is fired.
  • connection according to the invention is characterized in that the sabot tail has a second circumferential groove in addition to the said circumferential groove and that the sabot jacket also has a second flange in addition to the flange mentioned, one flange serving for sealing and the second flange for fastening.
  • the side walls of the one circumferential groove are preferably parallel to one another and inclined forward at an angle of 75 ° with respect to the projectile axis.
  • the side walls of the other circumferential groove are preferably inclined at an angle of 75 ° forwards or backwards relative to the projectile axis.
  • the sabot projectile consists of a projectile body 10, a sabot rear 11 and a sabot jacket 12.
  • a ballistic hood 13 is placed on the projectile body 10.
  • a hard metal or a tungsten alloy is used for the projectile body 10, for example.
  • the sabot tail 11 is made of light metal, for example, and the sabot jacket 12 is e.g. made of plastic.
  • the sabot jacket 12 usually consists of three segments which are connected to one another via predetermined breaking points 14. Only one predetermined breaking point 14 is visible in the drawing.
  • the sabot jacket 12 also has cutouts 15 and a guide band 16.
  • the projectile body 10 has two circumferential grooves 17, which are used to fasten the sabot rear 11.
  • the sabot tail 11 is provided with six tongues 18 which protrude with cams 25 into the circumferential grooves 17 of the projectile body.
  • the structure of the sabot projectile described so far is known.
  • the invention relates to the connection between the sabot jacket 12 and the sabot rear end 11.
  • the sabot rear end 11 has a first circumferential groove 19 which is formed by two side walls 21 and 22 which are parallel to one another. These side walls 21 and 22 are inclined forward at an angle of 75 ° with respect to the projectile axis. There is also a second circumferential groove 26 which is formed by two side walls 24 and 28, one side wall 24 being inclined rearward at an angle of 75 ° and the other side wall 28 being inclined forward by the same angle of 75 °.
  • a reliable, gas-tight connection is achieved through the first circumferential groove 19, and a reliable connection that withstands mechanical forces is achieved through the second circumferential groove.
  • a corresponding flange 20 of the sabot jacket 12 projects into the first circumferential groove 19 and a corresponding protrudes into the second circumferential groove 26 chender second flange 27 of the sabot jacket 12 into.
  • the side walls of the circumferential grooves 19 and 26 do not have to be inclined. They can also be perpendicular to the floor axis. Wedge-shaped or dovetail-shaped circumferential grooves are conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Gasket Seals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Claims (4)

1. Liaison entre l'enveloppe du sabot (12) et l'arrière du sabot (11 ) d'un obus à sabot avec une rainure périphérique (19, 26) à l'arrière du sabot, dans laquelle pénètre une bride (20, 27) de l'enveloppe (12) du sabot pour former une liaison entre l'enveloppe (12) du sabot et l'arrière (11 ) du sabot, qui d'une part résiste aux efforts mécaniques lors du tir et est étanche aux gaz d'autre part, caractérisée en ce que l'arrière (11) du sabot comporte, en plus de la rainure périphérique (19, 26) ci-dessus, une seconde rainure périphérique (26, 19), et en ce que l'enveloppe du sabot (12) comporte, en plus de ladite bride (20, 27), une seconde bride (27, 20), l'une des brides (20) servant à l'étanchéité et l'autre bride (27) à la fixation.
2. Liaison selon la revendication 1, caractérisée en ce que les parois latérales (21,22) de la rainure périphérique (19) recevant la bride (20) pour l'étanchéité sont parallèles entre elles et sont inclinées vers l'avant, par rapport à l'axe de l'obus, suivant un angle de 75°.
3. Liaison selon la revendication 1, caractérisée en ce que les parois latérales (24, 28) de l'autre rainure périphérique (26) sont inclinées vers l'avant ou vers l'arrière, par rapport à l'axe de l'obus, suivant un angle de 75°.
4. Liaison selon la revendication 1, caractérisée en ce que les deux rainures périphériques (19, 26) de l'arrière (11) du sabot sont séparées l'une de l'autre par une nervure périphérique (23).
EP82200847A 1981-08-13 1982-07-07 Liaison entre l'enveloppe et la partie arrière d'un sabot pour projectile Expired - Lifetime EP0072584B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5210/81 1981-08-13
CH521081 1981-08-13

Publications (3)

Publication Number Publication Date
EP0072584A1 EP0072584A1 (fr) 1983-02-23
EP0072584B1 true EP0072584B1 (fr) 1985-01-16
EP0072584B2 EP0072584B2 (fr) 1991-07-24

Family

ID=4289783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200847A Expired - Lifetime EP0072584B2 (fr) 1981-08-13 1982-07-07 Liaison entre l'enveloppe et la partie arrière d'un sabot pour projectile

Country Status (7)

Country Link
US (2) US4773331A (fr)
EP (1) EP0072584B2 (fr)
JP (1) JPS5837500A (fr)
CA (1) CA1193138A (fr)
DE (1) DE3261947D1 (fr)
NO (1) NO150934C (fr)
ZA (1) ZA825213B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0236705A1 (fr) 1986-03-07 1987-09-16 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Assemblage de l'enveloppe et du fond d'un sabot pour projectile sous-calibré

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072584B2 (fr) * 1981-08-13 1991-07-24 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Liaison entre l'enveloppe et la partie arrière d'un sabot pour projectile
EP0104587A1 (fr) * 1982-09-23 1984-04-04 Honeywell Inc. Projectile sous-calibre
DE3245540C2 (de) * 1982-12-09 1985-10-03 Precitronic Gesellschaft für Feinmechanik und Electronic mbH, 2000 Hamburg Treibspiegel-Geschoßführung
DE3635738A1 (de) * 1986-10-21 1988-05-19 Rheinmetall Gmbh Treibkaefig-fluggeschoss-anordnung
NO163425C (no) * 1987-04-30 1990-05-23 Oerlikon Buehrle Ag Utformning av et oenskebruddsted ved hekkdelen av et drivspeil for et drivspeilprosjektil.
DE3909836A1 (de) * 1989-03-25 1990-09-27 Diehl Gmbh & Co Treibtopf fuer drallstabilisierte unterkalibergeschosse
JPH0334010U (fr) * 1989-08-08 1991-04-03
FR2653873B1 (fr) * 1989-10-26 1992-01-03 France Etat Armement Projectile sous-calibre comportant un noyau, un sabot et une chemise.
JPH0685317U (ja) * 1993-05-27 1994-12-06 島津衣料株式会社 衣 服
US5479861A (en) * 1994-01-03 1996-01-02 Kinchin; Anthony E. Projectile with sabot
EP0918209B1 (fr) * 1997-11-19 2002-12-18 Oerlikon Contraves Ag Projectile avec fusée à temps programmable
CA2437515A1 (fr) * 2002-08-21 2004-02-21 Christopher R. Mcmurray Balle de plomb avec sabot
FR2875595B1 (fr) * 2004-09-21 2007-10-05 Jean Pierre Denis Projectile sous-calibre compose d'une fleche et d'une masse marteau logee dans un conteneur
US8100746B2 (en) * 2006-01-04 2012-01-24 Broan-Nutone Llc Indoor air quality systems and methods
DE102010045474A1 (de) 2010-09-16 2012-03-22 Rheinmetall Waffe Munition Gmbh Geschoss mit abwerfbarem Treibspiegel
US8887641B1 (en) * 2012-02-16 2014-11-18 The United States Of America As Represented By The Secretary Of The Army 40 mm low drag extended range projectile
US9714819B1 (en) * 2013-07-15 2017-07-25 The Boeing Company Stepped sabots for projectiles

Family Cites Families (4)

* 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
CH622883A5 (fr) * 1977-07-21 1981-04-30 Oerlikon Buehrle Ag
CH627550A5 (de) * 1978-05-30 1982-01-15 Oerlikon Buehrle Ag Drallstabilisiertes treibspiegelgeschoss zur ueberwindung eines heterogenen widerstandes.
EP0072584B2 (fr) * 1981-08-13 1991-07-24 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Liaison entre l'enveloppe et la partie arrière d'un sabot pour projectile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0236705A1 (fr) 1986-03-07 1987-09-16 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Assemblage de l'enveloppe et du fond d'un sabot pour projectile sous-calibré

Also Published As

Publication number Publication date
US4773331A (en) 1988-09-27
NO822444L (no) 1983-02-14
NO150934B (no) 1984-10-01
EP0072584B2 (fr) 1991-07-24
CA1193138A (fr) 1985-09-10
US4846072A (en) 1989-07-11
ZA825213B (en) 1983-04-27
EP0072584A1 (fr) 1983-02-23
DE3261947D1 (en) 1985-02-28
JPS5837500A (ja) 1983-03-04
NO150934C (no) 1985-01-16
JPS6364717B2 (fr) 1988-12-13

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