EP0640204B1 - Teleskopische munition - Google Patents

Teleskopische munition Download PDF

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Publication number
EP0640204B1
EP0640204B1 EP94909161A EP94909161A EP0640204B1 EP 0640204 B1 EP0640204 B1 EP 0640204B1 EP 94909161 A EP94909161 A EP 94909161A EP 94909161 A EP94909161 A EP 94909161A EP 0640204 B1 EP0640204 B1 EP 0640204B1
Authority
EP
European Patent Office
Prior art keywords
projectile
cap
munition
ring
plug
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 - Lifetime
Application number
EP94909161A
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English (en)
French (fr)
Other versions
EP0640204A1 (de
Inventor
Roland Boual
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.)
CTA International SAS
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CTA International SAS
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Filing date
Publication date
Application filed by CTA International SAS filed Critical CTA International SAS
Publication of EP0640204A1 publication Critical patent/EP0640204A1/de
Application granted granted Critical
Publication of EP0640204B1 publication Critical patent/EP0640204B1/de
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
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/045—Cartridges, i.e. cases with charge and missile of telescopic type

Definitions

  • the field of the present invention is that of telescoped type ammunition.
  • These munitions generally include a case made up a cylindrical envelope, carrying at each end a cap, and inside which are arranged a projectile and propellant charge.
  • the projectile is entirely inside the case and it is necessary to provide means ensuring its axial and radial retention relative to the envelope of the case.
  • the patent FR2679991 (cf. the preamble of claim 1) describes various means allowing a axial retention of the projectile relative to the envelope.
  • These means may include a rear end stop carried by an igniter and a front stop constituted by a ring elastic disposed in a groove of the front cap.
  • the front caps and rear move relatively to the casing, which may cause the projectile to tip over detrimental to a good placement of the latter in the barrel of the weapon.
  • Patent US4770098, DE1919954 and US3482516 describe ammunition in which the projectile is kept between a front plug and a rear stop surface secured to the case or to a rear part of the ammunition.
  • the document FR2679991 describes other means of support which combine a stop surface fitted on the front cap and an elastic ring arranged in a groove of the same plug.
  • such rings generally have a slot allowing their placement in a groove and this slot constitutes an area of asymmetry of the ring.
  • These holding means are also designed simple and they allow easy mounting of the projectile to inside the case.
  • the subject of the invention is a munition of the type telescoped and comprising a case, consisting of an envelope cylindrical with a plug at each end, and at inside which a projectile and a propellant charge, ammunition comprising means ensuring the axial retention of the projectile relative to the envelope, ammunition characterized in that the means of axial support consist only of a cap comprising a cylindrical central part integral with a front part of the projectile and carrying a flange annular, made integral with the front plug by means of fixation, and which has a symmetry with respect to the axis of the ammunition.
  • the collar ring seal closes the front of the envelope.
  • the fixing means consist of a weld of the collar on the front cap.
  • the front plug carries a metal reinforcement ring and the fixing means are formed by pinching the collar between the ring and the front cap.
  • the part cylindrical center of the cap has axial slots evenly distributed angularly as well as spouts fitted at one end and intended to be housed in a projectile groove so as to ensure the connection between cap and projectile.
  • the annular flange carries an annular rupture initiator.
  • This initiation of rupture could be a thinning circular of the collar, thinning whose diameter is substantially equal to that of the central part cylindrical of the cap.
  • the cap can be made integral with a front part of the shoe at the bore.
  • the nose may also include a bore in the level of which the cap will be made integral.
  • a munition 1 according to the invention comprises a case, consisting of an envelope cylindrical 2 closed by a front plug 3a and a plug rear 3b.
  • the caps are made of plastic and have metal reinforcements.
  • the front plug 3a carries a reinforcement ring 4a and the rear plug 3b carries a reinforcing plate 4b.
  • the ring 4a has an annular fold 5 which hooks by elastic deformation on a groove peripheral 6 fitted on the plug 3a.
  • the plate 4b is similarly fixed to the rear plug 3b. It carries an igniter 7 of the type of that described in patent FR2679994.
  • a projectile 8 Inside the case are arranged a projectile 8 and a propellant charge (not shown).
  • the projectile 8 comprises a sub-calibrated bar 9 arranged in a threaded bore 10 of a shoe 11 to the gauge.
  • the shoe 11 comprises several segments intended to hold the bar during the firing then to release it at the exit of the barrel of the weapon.
  • the bar carries a thread which allows its secured to the shoe at bore 10.
  • the bar 9 carries at its rear part a tail 12 to which a shim 13 is fixed.
  • the latter ensures radial retention of the projectile relative to the envelope 2 as well as the guidance of the projectile relative to it.
  • the shoe carries at its front part a belt 14 which is adjusted in an axial bore 15 of the front plug 3a.
  • the belt is intended to ensure the seal between the projectile and the barrel of the weapon.
  • the axial retention of the projectile 8 relative to the envelope 2 is provided by a cap 16 integral with the shoe 11 of the projectile.
  • the cap 16 is shown in detail in Figures 2a and 2b. It comprises a cylindrical central part 17 of which the diameter is substantially equal to that of bore 10.
  • This central part carries a thread which allows the securing of the cap 16 and the shoe of the projectile to bore level 10.
  • the cap also includes an annular collar 19 which is intended to be made integral with the plug 3a by fixing means.
  • the fixing means consist of a pinch of the collar 19 between the ring 4a and the front plug 3a.
  • the part of the collar 19 which is pinched is a thinned edge 20 which also constitutes a primer for flange break 19.
  • the rim 20 breaks when the firing of the ammunition without causing a non-axial impact on the projectile.
  • the collar 19 also acts as a seal for ammunition and helps prevent moisture outside to get inside the case.
  • the cap alone ensures the axial retention of the projectile relative to the front plug 3a, it is therefore no need to provide a shoulder on the plug 3a or a rear stop for the projectile.
  • Such an arrangement also has the advantage ensure the axial immobilization of the projectile without maintain the material of the belt in compression 14 against the plug 3a. This improves the hold in time of the ammunition.
  • Figure 3 shows the detail of the front part of a ammunition produced according to such a variant.
  • the front plug 3a has a counterbore 29 in which is housed the flange 19 of the cover 16.
  • the fixing of this cap on the front plug 3a is made by ultrasonic welding at the counterbore 29.
  • the fixing of the cap on the projectile 8 is made by screwing the threaded cylindrical part 17 in the bore 10 of the shoe.
  • FIG 4 shows another munition according to the invention in which the projectile 8 is of the caliber of the weapon.
  • the means for radially holding this projectile 8 relative to the casing 2 of the ammunition include a nose 21, made of plastic, and which has a internal profile corresponding to the external profile of a warhead 22 of projectile 8.
  • the internal profile of the nose ends with a cylindrical bore 23.
  • the nose 21 is made integral with the projectile 8 by a rim 24 which penetrates elastically into a groove 25 arranged on the projectile.
  • the nose 21 has holes 26 for axes parallel to the axis of the projectile and evenly distributed angularly. These holes have the function of weaken the nose and allow its separation from the projectile at the exit of the barrel from the weapon by the action of force centrifugal.
  • the nose 21 has a cylindrical external profile 27 which allows its adjustment in the front plug 3a.
  • a wedge 28 which is fixed to the rear part of the projectile and which also provides guidance for the latter relative to envelope 2.
  • the axial retention of the projectile 8 relative to the envelope 2 is provided by a cap 16 which is made secured to the projectile 8 at the level of the nose 21.
  • the cap 16 is shown in detail in Figures 5a and 5b.
  • the cap 16 has a central part cylindrical 17, of diameter equal to that of bore 23, and on which a thread is fitted. This last is screwed onto a thread carried by bore 23 nose 21.
  • the cap 16 also includes a collar annular 19 which is intended to be made integral with the plug 3a by fixing means.
  • the fixing means consist of a pinch of the collar 19 between the ring 4a and the front plug 3a.
  • the part of the collar 19 which is pinched is a thinned edge 20 which also constitutes a primer for flange break 19.
  • the rim breaks when the ammunition without causing a non-axial impact on the projectile.
  • the collar 19 also acts as a seal for ammunition and helps prevent moisture outside to get inside the case.
  • the cap alone ensures the axial retention of the projectile relative to the front plug 3a, it is therefore no need to provide a shoulder on the plug 3a or a rear stop for the projectile.
  • Figure 6 shows the detail of the front part of a ammunition produced according to this variant.
  • the front plug 3a has a counterbore 29 in which is housed the flange 19 of the cover 16.
  • the fixing of this cap on the front plug 3a is made by ultrasonic welding at the counterbore 29.
  • the fixing of the cap on the projectile 8 is made by screwing the threaded cylindrical part 17 of the cap in the bore 23 of the nose 21.
  • FIG. 7 represents a munition according to a third embodiment of the invention.
  • the projectile 8 comprises a sub-calibrated bar 9 disposed in a threaded bore 10 an 11 caliber shoe.
  • the axial retention of the projectile 8 relative to the envelope 2 is provided by a cap 16 integral with the shoe 11 of the projectile.
  • the cap 16 is shown in detail in Figures 8a and 8b. It includes a cylindrical central part 17 on which axial slots 30 are arranged, evenly distributed angularly (slots which are here six in number).
  • the central part 17 ends at one end with nozzles 31 which are intended to come into a groove 32 fitted to the front part of the bore 10 of the shoe 11.
  • the slots 30 give flexibility to the cylindrical central part 17, which allows the setting place nozzles 31 in the groove 32 by deformation elastic.
  • the spouts thus secure the connection of the cap 16 and shoe 11 of the projectile at bore 10.
  • the cap has an internal recess 18 which can receive the end of the bar 9.
  • the cap includes a annular collar 19, intended to be made integral of the plug 3a by fixing means constituted here by pinching the thinned edge 20 of the flange 19 between the ring 4a and the front plug 3a.
  • the annular flange 19 also has a surface conical 33 which creates a circular zone of thickness reduced 34 of diameter substantially equal to that of the cylindrical central part 17.
  • This reduced thickness zone 34 constitutes a initiation of rupture whose symmetry with respect to the axis of the ammunition allows a rupture during the firing of the ammunition without causing a non-axial impact on the projectile.
  • connection of the cap 16 by clipping the nozzles 31 on shoe 10 allows quick and easy mounting of the ammunition on the plug 3a, in the axial position desired for it, and without constraining the belt 14.
  • the positioning of the rupture initiator in the vicinity of the external diameter of the cylindrical central part 17 facilitates the fragmentation of the cap 16 at the time of shoot.
  • the flange 19 plays the role seal for ammunition and helps prevent moisture outside to get inside the case.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Color Television Image Signal Generators (AREA)
  • Lift Valve (AREA)
  • Gyroscopes (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Claims (9)

  1. Munition (1) des Teleskoptyps mit einer Hülse, bestehend aus einem zylindrischen Mantel (2), der an jedem Ende einen Stopfen (3a, 3b) aufweist, und in dessen Innerem ein Geschoß (8) und eine Treibladung untergebracht sind, wobei die Munition Mittel aufweist, die das axiale Halten des Geschosses in bezug auf den Mantel gewährleisten, und wobei die Munition dadurch gekennzeichnet ist, daß die Mittel zum axialen Halten ausschließlich aus einer Haube (16) bestehen, die einen zylindrischen zentralen Teil (17) trägt, der fest mit einem vorderen Teil des Geschosses (8) verbunden ist und einen ringförmigen Kragen (19) trägt, der fest mit dem vorderen Stopfen (3a) durch Befestigungsmittel verbunden ist, und der in bezug auf die Achse der Munition eine Symmetrie aufweist.
  2. Munition gemäß dem Anspruch 1, gekennzeichnet dadurch, daß der ringförmige Kragen (19) das Schließen des Vorderteils des Mantels (2) sicherstellt.
  3. Munition gemäß einem der Ansprüche 1 oder 2, gekennzeichnet dadurch, daß die Befestigungsmittel aus einer Schweißung des Kragens (19) auf dem vorderen Stopfen (3a) bestehen.
  4. Munition gemäß einem der Ansprüche 1 oder 2, gekennzeichnet dadurch, daß der vordere Stopfen (3a) einen metallischen Verstärkungsring (4a) trägt und dadurch, daß die Befestigungsmittel aus einer Verklemmung des Kragens (19) zwischen dem Ring (4a) und dem vorderen Stopfen (3a) bestehen.
  5. Munition gemäß einem der Ansprüche 1 bis 4, gekennzeichnet dadurch, daß der zentrale zylindrische Teil (17) der Haube (16) axiale Schlitze (30) regelmäßig winkelig verteilt trägt sowie Schnäbel (31), die an einem Ende angebracht sind und so in eine Hohlkehle (32) des Geschosses eingreifen sollen, daß die feste Verbindung zwischen Haube und Geschoß sichergestellt wird.
  6. Munition gemäß einem der Ansprüche 1 bis 5, gekennzeichnet dadurch, daß der ringförmige Kragen (19) einen ringförmigen Bruchansatz (20, 34) trägt.
  7. Munition gemäß dem Anspruch 6, gekennzeichnet dadurch, daß der Bruchansatz eine kreisförmige Verdünnung (34) des Kragens (19) ist, deren Durchmesser in etwa gleich groß ist wie der des zylindrischen zentralen Teils (17) der Haube (16).
  8. Munition gemäß einem der Ansprüche 3 bis 7, gekennzeichnet dadurch, daß das Geschoß eine Unterkaliberstange (9) umfaßt, die in einer Bohrung (10) untergebracht ist, die in einem Schuh (11), der dem Kaliber entspricht, angeordnet ist, und dadurch, daß die Haube (16) mit einem vorderen Teil des Schuhs (11) auf der Ebene der Bohrung (10) fest verbunden ist.
  9. Munition gemäß einem der Ansprüche 3 bis 7, gekennzeichnet dadurch, daß das Geschoß in seinem vorderen Teil eine Geschoßspitze (22) aufweist, auf der eine Nase (21) mit einem zylindrischen externen Profil (27) befestigt ist, die das Einpassen im vorderen Ring (3a) erlaubt, wobei die Nase außerdem eine Bohrung (23) aufweist, auf deren Ebene die Haube (16) fest verbunden ist.
EP94909161A 1993-03-12 1994-03-08 Teleskopische munition Expired - Lifetime EP0640204B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9302896A FR2702553B1 (fr) 1993-03-12 1993-03-12 Munition de type télescopée.
FR9302896 1993-03-12
PCT/FR1994/000252 WO1994020813A1 (fr) 1993-03-12 1994-03-08 Munition de type telescopee

Publications (2)

Publication Number Publication Date
EP0640204A1 EP0640204A1 (de) 1995-03-01
EP0640204B1 true EP0640204B1 (de) 1998-02-18

Family

ID=9444917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94909161A Expired - Lifetime EP0640204B1 (de) 1993-03-12 1994-03-08 Teleskopische munition

Country Status (6)

Country Link
US (1) US5467716A (de)
EP (1) EP0640204B1 (de)
AT (1) ATE163321T1 (de)
DE (1) DE69408562T2 (de)
FR (1) FR2702553B1 (de)
WO (1) WO1994020813A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19944375A1 (de) * 1999-09-16 2001-03-22 Rheinmetall W & M Gmbh Hülsenboden für großkalibrige Munition
US6748870B2 (en) 2001-10-22 2004-06-15 Armtec Defense Products Company Ammunition round assembly with combustible cartridge case
US6901866B2 (en) 2001-11-27 2005-06-07 Armtec Defense Products Company Combustible cased telescoped ammunition assembly
US6575097B1 (en) * 2002-07-29 2003-06-10 The United States Of America As Represented By The Secretary Of The Army Large caliber case telescoped ammunition
US8146502B2 (en) 2006-01-06 2012-04-03 Armtec Defense Products Co. Combustible cartridge cased ammunition assembly
US7913625B2 (en) * 2006-04-07 2011-03-29 Armtec Defense Products Co. Ammunition assembly with alternate load path
US20090308274A1 (en) * 2008-06-11 2009-12-17 Lockheed Martin Corporation Integrated Pusher Plate for a Canister- or Gun-Launched Projectile and System Incorporating Same
US9267772B2 (en) 2012-06-27 2016-02-23 Aai Corporation Ballistic sealing, component retention, and projectile launch control for an ammunition cartridge assembly
US8807039B2 (en) * 2012-06-27 2014-08-19 Aai Corporation Ballistic sealing, component retention, and projectile launch control for an ammunition cartridge assembly
US20230358518A1 (en) * 2022-05-05 2023-11-09 Raytheon Company Sabot or cover for seekers, sensitive windows and surface elements on gun launched munitions

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996998A (en) * 1957-09-24 1961-08-22 Gold Harol Pump
US2996988A (en) * 1958-03-04 1961-08-22 Hughes Tool Company Aircraft D Cartridge for firearms having sideloaded firing chambers
FR1571251A (de) * 1958-11-07 1969-06-20
US3272982A (en) * 1962-05-25 1966-09-13 John K Stewart Infrared remote controller
DE1919954A1 (de) * 1967-06-27 1972-02-24 Erhard Lutz Huelsenlose Munition
US3482516A (en) * 1967-12-28 1969-12-09 Hercules Inc Caseless cartridges having the projectile housed in the propellant charge
BE747764A (fr) * 1969-04-19 1971-12-08 Lutz Erhard Cartouche sans douille
US3897729A (en) * 1970-05-02 1975-08-05 Schirnecker Hans Ludwig Cartridge for firearms
US4770098A (en) * 1985-04-03 1988-09-13 Ares, Inc. Telescoped ammunition round
US5173571A (en) * 1987-12-28 1992-12-22 Montgomery Donald N Projectile guide for telescoped ammunition
FR2647890A1 (fr) * 1989-06-01 1990-12-07 France Etat Armement Dispositif de maintien d'un projectile relativement a l'enveloppe d'une munition telescopee
US5069137A (en) * 1990-05-17 1991-12-03 Honeywell Inc. Cased telescoped ammunition round
FR2679991B1 (fr) * 1991-07-31 1993-10-29 Giat Industries Perfectionnements apportes a une munition en particulier du type telescope.
FR2679994B1 (fr) * 1991-07-31 1995-02-17 Giat Ind Sa Dispositif d'allumage de la charge propulsive d'une munition, notamment telescopee, et munition initiee par un tel dispositif d'allumage.
US5265540A (en) * 1991-07-31 1993-11-30 Giat Industries Ammunition, in particular of the telescoped type

Also Published As

Publication number Publication date
ATE163321T1 (de) 1998-03-15
DE69408562D1 (de) 1998-03-26
FR2702553B1 (fr) 1995-04-28
US5467716A (en) 1995-11-21
WO1994020813A1 (fr) 1994-09-15
EP0640204A1 (de) 1995-03-01
DE69408562T2 (de) 1998-07-23
FR2702553A1 (fr) 1994-09-16

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