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EP0123978B1 - Coiffe pour projectile à noyau perforant - Google Patents

Coiffe pour projectile à noyau perforant Download PDF

Info

Publication number
EP0123978B1
EP0123978B1 EP84104043A EP84104043A EP0123978B1 EP 0123978 B1 EP0123978 B1 EP 0123978B1 EP 84104043 A EP84104043 A EP 84104043A EP 84104043 A EP84104043 A EP 84104043A EP 0123978 B1 EP0123978 B1 EP 0123978B1
Authority
EP
European Patent Office
Prior art keywords
projectile
sabot
cap
hood
nose
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
EP84104043A
Other languages
German (de)
English (en)
Other versions
EP0123978A3 (en
EP0123978A2 (fr
Inventor
Klaus Walter Klein
Klaus Gersbach
Jürgen Dr. Böcker
Jean-Claude Sauvestre
Patrick Montier
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 Industrie AG
Direction General pour lArmement DGA
Original Assignee
Rheinmetall GmbH
Direction General pour lArmement DGA
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 Rheinmetall GmbH, Direction General pour lArmement DGA filed Critical Rheinmetall GmbH
Priority to AT84104043T priority Critical patent/ATE31364T1/de
Publication of EP0123978A2 publication Critical patent/EP0123978A2/fr
Publication of EP0123978A3 publication Critical patent/EP0123978A3/de
Application granted granted Critical
Publication of EP0123978B1 publication Critical patent/EP0123978B1/fr
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
    • F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile

Definitions

  • the invention relates to a balancing bullet with a segmentable sabot with the features of the preamble of claim 1.
  • the sabot in the vicinity of the balancing ball front part has an air pocket for detaching the sabot segments from the balancing ball after leaving a weapon barrel under the incoming air.
  • an uneven detachment of the sabot segments from the balancing bullet was found. This can lead to a harmful swinging of the balancing bullet.
  • the swinging of the balancing bullet can impact its accuracy as well as its penetration performance. The latter primarily relates to the effect against new types of targets, which require both particularly long balancing bullets and the greatest possible freedom of oscillation. Investigations into the behavior of the balancing block / sabot arrangement showed that unstable flow conditions can occur in the area around the front part of the balancing block, which impair the uniform segment-wise detachment of the sabot.
  • the invention is based on the object of keeping pressure fluctuations away from the sabot in a balancing projectile and thereby achieving a uniform detachment of the sabot segments from the projectile body.
  • a hood connected to a driving ring on a projectile, which covers the projectile tip and which is provided with an air inflow surface is known.
  • the hood acting as a lever arm, is intended to decouple the drive ring from the projectile body by the inflowing air.
  • This arrangement is very complex.
  • the drawing shows embodiments of the new balancing projectile with a hood designated as a tip body.
  • the invention is explained in more detail below with reference to two preferred exemplary embodiments shown in the drawing.
  • a balancing bullet 1 which is only partially shown, has a bullet tip 10 with a circular-conical area 12.
  • the projectile tip 10 is an essentially circular cylindrical plastic hood 14 with longitudinally axial recesses 13 and a retracted front inflow surface 15 pushed on and glued.
  • the plastic hood 14 is supported with a rear inner surface 19 on a floor surface-side counter surface 18 and has an outer diameter 16 which approximately corresponds to a largest outer diameter 17 of the balancing bullet 1.
  • a body 20 is fastened on a projectile tip 11, which is only shown in part.
  • a diameter 22 of the projectile tip is increased by a predeterminable amount in an area 21.
  • the body 20 consists of a material that is consumed by melting, softening and / or burning under the friction of the incoming air after leaving the weapon barrel.
  • a material that is consumed by melting, softening and / or burning under the friction of the incoming air after leaving the weapon barrel In addition to a thermoplastic, Wood's or Rose's metal or a magnesium alloy are suitable.
  • a balancing bullet sabot arrangement with one of the tip bodies 14 or 20 according to the invention leaves the weapon barrel in the direction of an arrow S, the tip body in question, owing to its respective diameter, prevents pressure fluctuations from interfering with the detaching process of the sabot segments. For this, an unfavorable drag coefficient in the top range is accepted.
  • the predetermined breaking points 13 take effect in the plastic hood 14 under the dynamic pressure of the air in the region of the inflow surface 15. The plastic fragments separate from the projectile tip 10 and there is an instantaneous more favorable drag coefficient.
  • the invention is characterized by good effectiveness with simplicity and low costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Claims (4)

1. Projectile à effet cinétique d'un rapport longueur-diamètre élevé, comportant une cage de propulsion segmentable entourant le corps du projectile, dont les segments sont maintenus sur le corps du projectile par des moyens de liaison forcée pendant le parcours du tube de l'arme, et qui comporte en avant un évidement en forme d'auge qui, une fois que le projectile a quitté le tube de l'arme, provoque par l'avant l'écartement des segments en raison de la surpression qui y est établie par l'air qui s'écoule à son contact, caractérisé en ce que la pointe (10) du projectile comporte une calotte (14) agrandissant son diamètre, qui protège la cage de propulsion des variations de pression jusqu'à la séparation des segments du corps (1) du projectile et qui se sépare de la pointe (10) après la séparation de la cage du corps (1) du projectile et rétablit ainsi le coefficient de traînée cx initiale auquel la calotte (14) a donné une valeur plus défavorable.
2. Projectile selon la revendication 1, présentant les caractéristiques suivantes:
a) La calotte (14) a la forme d'un cylindre circulaire et présente un diamètre extérieur (16) correspondant approximativement au diamètre extérieur maximum (17) du projectile (1) et est placée sur une zone (12), ayant sensiblement la forme d'un cône circulaire, de la pointe (10).
b) La calotte (14) est délimitée antérieurement par une surface frontale à l'écoulement rentrante (15) et comporte des évidements (13) périphériques parallèles à l'axe longitudinal pour former des emplacements destinés à la rupture.
c) La surface frontale à l'écoulement (15) et les évidements (13) sont conformés de façon que, sous l'effet de la pression d'écoulement de l'air, après que le projectile ait quitté le tube de l'arme, ils n'entraînent la rupture et l'éloignement de la calotte (14) de la pointe (10) du projectile qu'après la séparation de la cage.
3. Projectile selon la revendication 2, caractérisé en ce que la calotte (14) est constituée par une matière de faible densité, par exemple une matière plastique.
4. Projectile selon la revendication 1, caractérisé en ce que la calotte (14) fixée à la pointe (11) du projectile est un corps (20) en une matière qui se consomme sous l'effet du frottement de l'air qui s'écoule à son contact, après que le projectile ait quitté le tube de l'arme et après que la cage se soit séparée, par fusion, ramollissement et/ou combustion.
EP84104043A 1983-04-23 1984-04-11 Coiffe pour projectile à noyau perforant Expired EP0123978B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104043T ATE31364T1 (de) 1983-04-23 1984-04-11 Spitzenkoerper fuer ein wuchtgeschoss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3314751 1983-04-23
DE19833314751 DE3314751A1 (de) 1983-04-23 1983-04-23 Spitzenkoerper fuer ein wuchtgeschoss

Publications (3)

Publication Number Publication Date
EP0123978A2 EP0123978A2 (fr) 1984-11-07
EP0123978A3 EP0123978A3 (en) 1985-05-15
EP0123978B1 true EP0123978B1 (fr) 1987-12-09

Family

ID=6197166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104043A Expired EP0123978B1 (fr) 1983-04-23 1984-04-11 Coiffe pour projectile à noyau perforant

Country Status (4)

Country Link
US (1) US4714024A (fr)
EP (1) EP0123978B1 (fr)
AT (1) ATE31364T1 (fr)
DE (2) DE3314751A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3419110A1 (de) * 1984-05-23 1992-04-02 Dynamit Nobel Ag Geschoss mit aufgesetzter haube
DE3609092A1 (de) * 1986-03-19 1990-11-22 Rheinmetall Gmbh Geschoss fuer eine rohrwaffe zum bekaempfen aktiv und passiv reagierender sonderpanzerungen
DE3632629A1 (de) * 1986-09-25 1988-04-07 Rodenstock Optik G Inklinierbare brille
US5138949A (en) * 1990-09-20 1992-08-18 Olin Corporation Combustible ammunition cartridge case
US5870647A (en) * 1992-11-09 1999-02-09 Canon Kabushiki Kaisha Pedestal for supporting equipment
US5323708A (en) * 1993-03-29 1994-06-28 Aerojet-General Corporation Clip-lock sabot cap
DE102019113325A1 (de) * 2019-05-20 2020-11-26 Rheinmetall Waffe Munition Gmbh Penetrator, Verwendung eines Penetrators und Geschoss
US12066276B2 (en) * 2022-05-05 2024-08-20 Raytheon Company Sabot or cover for seekers, sensitive windows and surface elements on gun launched munitions

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703507C (de) * 1968-05-31 1973-04-26 Rheinmetaü GmbH, 4000 Dusseldorf Flugelstabilisiertes Unterkahber geschoß

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401380A (en) * 1941-12-15 1946-06-04 Alfred F Teitscheid Projectile cap
US3148472A (en) * 1962-06-11 1964-09-15 Edward N Hegge Subcaliber projectile and sabot for high velocity firearms
CH453955A (de) * 1966-03-04 1968-03-31 Oerlikon Buehrle Holding Ag Treibspiegelgeschoss
BE755246A (fr) * 1969-09-23 1971-02-01 Pacific Technica Corp Projectile tracant
CH532240A (de) * 1970-12-08 1972-12-31 Oerlikon Buehrle Ag Kurzbahngeschoss
US3902424A (en) * 1973-12-07 1975-09-02 Us Army Projectile
BE882272A (fr) * 1980-03-18 1980-09-18 Herstal Sa Munition d'entrainement
DE3047517A1 (de) * 1980-12-17 1982-07-01 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Unterkalibriges treibringgeschoss
US4405100A (en) * 1981-02-20 1983-09-20 The United States Of America As Represented By The Secretary Of The Navy Turbulence generator for maximizing configuration tolerances of free flight ordnance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703507C (de) * 1968-05-31 1973-04-26 Rheinmetaü GmbH, 4000 Dusseldorf Flugelstabilisiertes Unterkahber geschoß

Also Published As

Publication number Publication date
DE3314751A1 (de) 1984-10-25
EP0123978A3 (en) 1985-05-15
ATE31364T1 (de) 1987-12-15
EP0123978A2 (fr) 1984-11-07
DE3468072D1 (en) 1988-01-21
US4714024A (en) 1987-12-22

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