EP1092939B1 - Vorrichtung zum Befestigen eines Hülsenbodens an einer Treibladungshülse und Hülsenboden für eine solche Befestigungseinrichtung - Google Patents

Vorrichtung zum Befestigen eines Hülsenbodens an einer Treibladungshülse und Hülsenboden für eine solche Befestigungseinrichtung Download PDF

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Publication number
EP1092939B1
EP1092939B1 EP00402722A EP00402722A EP1092939B1 EP 1092939 B1 EP1092939 B1 EP 1092939B1 EP 00402722 A EP00402722 A EP 00402722A EP 00402722 A EP00402722 A EP 00402722A EP 1092939 B1 EP1092939 B1 EP 1092939B1
Authority
EP
European Patent Office
Prior art keywords
base
joining device
case
cup
support means
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
EP00402722A
Other languages
English (en)
French (fr)
Other versions
EP1092939A1 (de
Inventor
Laurent Desgland
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.)
Giat Industries SA
Original Assignee
Giat Industries SA
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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP1092939A1 publication Critical patent/EP1092939A1/de
Application granted granted Critical
Publication of EP1092939B1 publication Critical patent/EP1092939B1/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
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/181—Caseless ammunition; Cartridges having combustible cases consisting of a combustible casing wall and a metal base; Connectors therefor
    • 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
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • 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
    • F42B5/26—Cartridge cases
    • F42B5/28—Cartridge cases of metal, i.e. the cartridge-case tube is of metal
    • F42B5/285—Cartridge cases of metal, i.e. the cartridge-case tube is of metal formed by assembling several elements

Definitions

  • the technical field of the invention is that of caps shutters for ammunition, especially large caliber as well as their fastening devices on the case of a ammunition.
  • This base is made integral with a combustible case with using a washer arranged in a groove of a axial extension of the base.
  • the main disadvantage presented by such a device is that the base can only be attached to the case before loading of this powder.
  • patent EP463904 describes a base which includes a elastic ring intended to cooperate with a groove carried by a tubular piece secured to the bottom of the combustible case.
  • the device according to the invention allows the fixing from a base to a combustible case after loading in powder of this one.
  • the base can be easily removed to carry out powder control or replacement operations.
  • the subject of the invention is a device for attachment of a shutter base for ammunition especially large caliber with a combustible case, device in which the case carries or has a bowl with central opening, device characterized in that a support means is fixed to the bowl by a first connecting means, support means affecting the shape of a rod having a cylindrical surface on which comes position a base bore, the base being returned secured to the support means by a second connecting means.
  • the support means may be constituted by an igniter system.
  • the support means may include a threaded part intended to cooperate with a nut which constitutes the second connecting means and which is housed in a fitted counterbore on the pellet.
  • the bowl can be formed integrally with the case fuel or be made integral with a wall cylindrical of the combustible case by a fixing means.
  • the first connecting means may include an intermediate piece fixed at the level of the central opening.
  • the intermediate piece could be a ring comprising a circular groove in which will accommodate the edge of the opening central, ring with at least two elastically spouts deformable allowing the introduction of the rim in the throat.
  • the part intermediate may include a circular groove in which will accommodate at least two tabs integral with the bowl.
  • the bowl may have at least one opening side allowing the introduction of powder.
  • the bowl may have at least three openings regularly distributed angularly and delimited by radial arms converging towards an annular flange axial.
  • the invention also relates to a base suitable for be able to be made integral with a case with such a device of fixation.
  • the shutter base according to the invention is intended to be secured to a combustible case by such a device of solidarity.
  • This base is characterized in that it has a smooth axial bore intended to cooperate with a medium rod-shaped support which is integral with the case.
  • the axial bore of the base will be widened to a countersink level of a rear face of the base, counterbore allowing receive a fixing nut.
  • a large ammunition 1 caliber includes a case 2 of combustible material, for example in cardboard impregnated with nitrocellulose, case with rear part of which is fixed a base 3.
  • the case of the ammunition is intended to receive a projectile and a powder charge not shown.
  • the base 3 is made of steel. It has a bottom 3a solid and a cylindrical rim 3b at the end of which is fixed a rubber sealing lip 4.
  • the base 3 has a smooth axial bore 5 which is widened into a counterbore 6 produced at the rear face 7 of the base 3.
  • the combustible case 2 carries a bowl 8 which marries substantially the shape of the interior of the base 3.
  • the bowl 8 has a cylindrical part 8a, the upper edge carries a notch 9 intended to receive the end of the case 2.
  • the bowl 8 has a central opening 11 on which is fixed a tubular intermediate piece 12 (see also figure 2). It also includes at least one lateral opening 22 which is intended to allow the powder loading.
  • the tubular intermediate piece 12 is generally cylindrical. It has a bore 13 on which is tapped 14
  • Scope cylindrical 15 has an external cylindrical surface 15 which is fits in opening 11 of bowl 8. Scope cylindrical 15 has a circular groove 16 which is intended to receive tongues 17 integral with the bowl and evenly distributed angularly (here 3 tongues).
  • the tongues 17 deform during the introduction of the tubular part 12 in the opening 11 of the bowl 8 and they secure the tubular part and the bowl.
  • the bowl will be made for example of a material plastic such as polyamide.
  • the intermediate piece tubular 12 will be made of the same material or else metal.
  • Support means 18 generally affecting the shape of a rod, is fixed to the tubular part 12 by a thread produced on the support means and cooperating with the tapping 14 of the tubular part.
  • the support means 18 has a cylindrical surface 19 which receives the axial bore 5 of the base 3.
  • the intermediate piece 12 constitutes a first means of connection which allows the attachment of the support means to the bowl.
  • this embodiment also has a shape cylindrical elongated which delimits a volume at the level of the axis of the ammunition in which the grains of powders do not will not penetrate during loading. This facilitates the development of the flame generated by the means ignition pyrotechnics, means which will advantageously be integrated into the support means 18.
  • the cylindrical bearing surface 19 of the support means 18 is extended by a thread which is intended to cooperate with a nut 20.
  • the latter constitutes a second means of connection which makes it possible to make the base 3 integral with the support means 18, therefore of the bowl 8.
  • the nut 20 is housed in the counterbore 6 so as not to not be projecting from the rear face 7 of the base.
  • the nut 20 will be screwed in using a tool appropriate.
  • We will preferably provide holes made in the nut parallel to its internal thread and making it possible to engage in the nut a claw wrench of known type.
  • the support means 18 will also carry means pyrotechnic ignition for propellant charging, in particular an initiator 21 (such as a primer) and one or several relays.
  • an initiator 21 such as a primer
  • This structure is well known to humans of the profession and is therefore not shown here in detail.
  • Ammunition 1 is assembled in the same way next :
  • the projectile (not shown) is fixed to the case by a suitable means for example a connecting ring such as described by EP307307.
  • the propellant powder is loaded in introducing the grains of powder through the opening 22 of bowl 8.
  • FIG. 6 thus shows a bowl 8 in which the tubular part 12 and the bowl 8 form a single and same plastic part.
  • the internal thread 14 is intended for receiving the support means (not shown).
  • Several holes side 22 are made.
  • the holes 31 are intended for receive the rivets 10 for fixing the case 2.
  • FIGS 4 and 5 thus show a bowl 8 comprising four regularly distributed openings 22 angularly and which are delimited by radial arms 23 which converge towards an axial annular flange 24.
  • the axial flange 24 carries the axial opening 11 intended to receive the tubular intermediate piece.
  • the bowl 8 has tongues 17 intended to allow the tubular intermediate piece to be fixed.
  • This embodiment of the bowl allows on the one hand to facilitate powder loading by increasing the number of 22 openings and on the other hand to give some flexibility to the base fixing device, flexibility conferred by the arms 23.
  • Figures 7 and 8 show a third mode of realization of a device according to the invention.
  • the case 2 has a bottom fuel 2a forming a bowl.
  • This background presents a axial opening 11 in which the support means is fixed 18 using an intermediate piece which is formed here by a ring 25.
  • the ring 25 is visible in more detail in FIGS. 8a and 8b. It is made of plastic (for example in polyamide) and has a cylindrical shape. It includes a axial thread 26 which extends over its entire height. She has a groove at one of its ends annular 30 and four spouts 27 regularly distributed angularly and separated by radial slots 28.
  • the beaks all have a conical chamfer 29 which facilitates the introduction of the ring into the opening 11 of the case.
  • the spouts can deform radially elastically.
  • the ledge of the opening of the case 2 can thus be positioned in the annular groove 30.
  • the return of the spouts in the non-position deformed ensures the confinement of the rim of the case in the groove 30 and thus the joining of ring 25 with the case.
  • the powder case can then be loaded through the opening (s) 22.
  • the ring 25 it is also possible to give the ring 25 a different shape, in particular a tubular shape allowing create a powder-free space near the outlet of the pyrotechnic igniter.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Claims (12)

  1. Vorrichtung zum Zusammenschließen eines Geschossbodens (3) mit Dichtungskragen für eine Munition, insbesondere von großem Kaliber, mit einer brennbaren Hülse (2), bei welcher Vorrichtung die Hülse (2) eine Mulde (2a, 8) trägt oder aufweist, die mit einer zentralen Öffnung (11) versehen ist, wobei die Vorrichtung dadurch gekennzeichnet ist, dass ein Haltemittel (18) durch ein erstes Verbindungsmittel (12, 25) an der Mulde befestigt ist, wobei das Haltemittel die Form einer Stange aufweist, die eine zylindrische Fläche (19) umfasst, auf der sich eine Bohrung (5) des Geschossbodens (3) positioniert, wobei der Geschossboden durch ein zweites Verbindungsmittel (20) fest mit dem Haltemittel (18) verbunden ist.
  2. Vorrichtung zum Zusammenschließen nach Anspruch 1, dadurch gekennzeichnet, dass das Haltemittel (18) von einem Zündungssystem gebildet wird.
  3. Vorrichtung zum Zusammenschließen nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das Haltemittel (18) einen Abschnitt mit Gewinde umfasst, der dafür vorgesehen ist, mit einer Mutter (20) zusammen zu wirken, die das zweite Verbindungsmittel darstellt und die sich in eine am Geschossboden (3) angebrachte Senkung (6) einfügt.
  4. Vorrichtung zum Zusammenschließen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Mulde (2a) integral mit der brennbaren Hülle gebildet ist.
  5. Vorrichtung zum Zusammenschließen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Mulde (8) mittels eines Befestigungsmittels (10) fest mit einer zylindrischen Wand der brennbaren Hülse (2) verbunden ist.
  6. Vorrichtung zum Zusammenschließen nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das erste Verbindungsmittel ein Zwischenglied (12, 25), das im Bereich der zentralen Öffnung (11) befestigt ist, umfasst.
  7. Vorrichtung zum Zusammenschließen nach Anspruch 6, dadurch gekennzeichnet, dass das Zwischenglied ein Ring (25) ist, der eine kreisförmige Rille (30) umfasst, in welche sich der Rand der zentralen Öffnung (11) einfügt, wobei der Ring wenigstens zwei elastisch verformbare Nasen (27) aufweist, welche das Zuführen des Randes in die Rille (30) ermöglichen.
  8. Vorrichtung zum Zusammenschließen nach Anspruch 6, dadurch gekennzeichnet, dass das Zwischenglied (12) eine kreisförmige Rille (16) umfasst, in welche sich wenigstens zwei fest mit der Mulde (8) verbundene Lappen (17) einfügen.
  9. Vorrichtung zum Zusammenschließen nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Mulde (8) wenigstens eine seitliche Öffnung (22) umfasst, die das Zuführen von Pulver erlaubt.
  10. Vorrichtung zum Zusammenschließen nach Anspruch 9, dadurch gekennzeichnet, dass die Mulde (8) wenigstens drei Öffnungen (22) umfasst, die gleichmäßig über den Umfang verteilt sind und von radialen Armen (23) begrenzt werden, die zu einem ringförmigen, axialen Kragen (24) zusammenlaufen.
  11. Geschossboden (3), der dafür vorgesehen ist, fest mit einer brennbaren Hülse (2) durch eine Vorrichtung zum Zusammenschließen nach einem der vorhergehenden Ansprüche verbunden zu werden, wobei der Geschossboden dadurch gekennzeichnet ist, dass er eine axiale, glatte Bohrung (5) umfasst, die dafür vorgesehen ist, mit einem Haltemittel (18) in Form einer Stange, die fest mit der Hülse (2) verbunden ist, zusammen zu wirken.
  12. Geschossboden nach Anspruch 11, dadurch gekennzeichnet, dass die axiale Bohrung (5) im Bereich einer Rückseite (7) des Geschossbodens durch eine Senkung (6) erweitert ist, wobei die Senkung es ermöglicht, eine Befestigungsmutter (20) aufzunehmen.
EP00402722A 1999-10-13 2000-10-04 Vorrichtung zum Befestigen eines Hülsenbodens an einer Treibladungshülse und Hülsenboden für eine solche Befestigungseinrichtung Expired - Lifetime EP1092939B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9912858A FR2799831B1 (fr) 1999-10-13 1999-10-13 Dispositif de fixation d'un culot obturateur sur un etui de munition et culot adapte a un tel dispositif
FR9912858 1999-10-13

Publications (2)

Publication Number Publication Date
EP1092939A1 EP1092939A1 (de) 2001-04-18
EP1092939B1 true EP1092939B1 (de) 2004-05-19

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EP00402722A Expired - Lifetime EP1092939B1 (de) 1999-10-13 2000-10-04 Vorrichtung zum Befestigen eines Hülsenbodens an einer Treibladungshülse und Hülsenboden für eine solche Befestigungseinrichtung

Country Status (5)

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US (1) US6450099B1 (de)
EP (1) EP1092939B1 (de)
DE (1) DE60010829T2 (de)
FR (1) FR2799831B1 (de)
IL (1) IL138991A0 (de)

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USD891569S1 (en) 2019-03-12 2020-07-28 True Velocity Ip Holdings, Llc Ammunition cartridge nose having an angled shoulder
USD892258S1 (en) 2019-03-12 2020-08-04 True Velocity Ip Holdings, Llc Ammunition cartridge nose having an angled shoulder
USD891567S1 (en) 2019-03-12 2020-07-28 True Velocity Ip Holdings, Llc Ammunition cartridge nose having an angled shoulder
USD891570S1 (en) 2019-03-12 2020-07-28 True Velocity Ip Holdings, Llc Ammunition cartridge nose
USD891568S1 (en) 2019-03-12 2020-07-28 True Velocity Ip Holdings, Llc Ammunition cartridge nose having an angled shoulder
EP3942250A4 (de) 2019-03-19 2022-12-14 True Velocity IP Holdings, LLC Verfahren und vorrichtungen zum dosieren und verdichten von sprengstoffpulvern
USD894320S1 (en) 2019-03-21 2020-08-25 True Velocity Ip Holdings, Llc Ammunition Cartridge
FR3094476B1 (fr) 2019-03-27 2021-02-19 Nexter Munitions Cartouche comprenant des cordeaux d'allumage
US11543218B2 (en) 2019-07-16 2023-01-03 True Velocity Ip Holdings, Llc Polymer ammunition having an alignment aid, cartridge and method of making the same
DE102020001052A1 (de) 2020-02-19 2021-08-19 Nitrochemie Aschau Gmbh Hülsenmantel
FR3113728B1 (fr) 2020-09-01 2022-12-02 Nexter Munitions Douille combustible pour munition
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Also Published As

Publication number Publication date
EP1092939A1 (de) 2001-04-18
DE60010829T2 (de) 2004-10-07
IL138991A0 (en) 2001-11-25
DE60010829D1 (de) 2004-06-24
US6450099B1 (en) 2002-09-17
FR2799831A1 (fr) 2001-04-20
FR2799831B1 (fr) 2001-11-30

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