EP2331902B1 - Munition encartouchée - Google Patents

Munition encartouchée Download PDF

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Publication number
EP2331902B1
EP2331902B1 EP20090776013 EP09776013A EP2331902B1 EP 2331902 B1 EP2331902 B1 EP 2331902B1 EP 20090776013 EP20090776013 EP 20090776013 EP 09776013 A EP09776013 A EP 09776013A EP 2331902 B1 EP2331902 B1 EP 2331902B1
Authority
EP
European Patent Office
Prior art keywords
cartridge
bottom flange
cartridge case
ammunition
disposed
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.)
Not-in-force
Application number
EP20090776013
Other languages
German (de)
English (en)
Other versions
EP2331902A1 (fr
Inventor
Olaf Kruse
Detlef Haeselich
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 Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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 Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2331902A1 publication Critical patent/EP2331902A1/fr
Application granted granted Critical
Publication of EP2331902B1 publication Critical patent/EP2331902B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Definitions

  • the invention relates to a cartridge ammunition from a projectile and this receiving cartridge case according to the preamble of claim 1.
  • Such a cartridge ammunition is used as a sharp ammunition or practice ammunition preferably in conjunction with rapid-fire weapons and in particular medium-caliber rapid fire cannons around 40 mm.
  • the cartridge ammunition is stored in a belt, which is usually performed in the upper, the projectile-facing portion of the cartridge case.
  • the cartridge shell has at its bottom on the circumference of the projectile slightly radially projecting flange, which forms the bottom of the cartridge ammunition
  • the belt is inserted into the lock of the rapid-fire weapon, for inserting the cartridge ammunition in the barrel of the rapid-fire weapon usually include two retaining claws a Entgurtungs
  • a Entgurtung leads the lock the bottom flange of the cartridge case and pull the cartridge ammunition with the lock abruptly first backwards out of the belt and then transfer it to the barrel of the weapon.
  • Entgurtung the ammunition of the bottom flange of the cartridge case is mechanically very heavily loaded by the shear force occurring. It happens in some cases that parts of the radial bottom flange of the cartridge case are torn off. Thus, the cartridge is no longer kept in the lock and not transported further.
  • the DE 40 34 880 A1 deals with a sleeve bottom with reduced strain.
  • one or more circular Dehriungsfalten are embedded in the sleeve bottom. The depth of the fold is greater than the floor thickness of the case bottom.
  • the DE 197 00 240 C1 relates to a cartridge case with incorporated compression body for maximum gas pressure determination.
  • the compression body is made of lead and is integrated in a hole from the bottom of the sleeve to the powder space. At the bottom of the sleeve this ends in an arcuate groove.
  • the sleeve is provided with other components. When the cartridge is fired, the gas pressure pushes the compression body into the arcuate groove. The higher the gas pressure, the further the groove is filled with the body. The extension of the groove can then be measured with a caliper and the gas pressure can be determined with the aid of a stirrup table.
  • an ammunition cartridge with housing which consists at least partially of plastic, and with a base member which is provided with sharp beads and grooves, by means of which it is fixed to the plastic.
  • the plastic engages in the groove.
  • the individual grooves are sufficiently small to allow sufficient cold flow from the plastic into the grooves, with the plastic in and around the grooves being substantially stress-free.
  • the WO 2004/015359 A1 describes an insulated cartridge case and ammunition, a method for making such sleeves and their use in a variety of weapon systems, in particular in electrothermal and electrothermal chemical cannon systems.
  • a thin-walled cartridge case with a head (sleeve bottom) and the thin-walled sleeve is described.
  • On the inside of the sleeve bottom is provided with a groove, which merges into a curved surface, which terminates at a transition point on the inside of the sleeve.
  • the outer surface of the sleeve base is provided with an annular squib groove to reduce the weight of the cartridge case.
  • the invention has for its object to provide a cartridge ammunition of the type in question, in which by a simple measure, the shearing off of the edge of the projecting beyond the floor circumference of the bottom shell of the cartridge case is prevented.
  • the bottom flange of the cartridge case at least in the region of the retaining claws of Entgurtungs founded one or more recesses provided with which the thickness of the bottom is reduced there so that the bottom flange can be bent more there, ie it is substantially increases the bending stability of the soil .
  • the sudden forces occurring during the Entgurten the cartridge ammunition are introduced by this increased bending elasticity, ie by the possibility of greater deflection of the bottom flange as bending forces in the bottom of the cartridge ammunition, instead of applying them as previously by shear forces.
  • the burdens are thereby caught, without the bottom flange or parts of it being sheared off.
  • the recess or recesses can be configured in a number of ways.
  • One possibility is a relief groove running in close proximity to the peripheral edge of the bottom flange of the cartridge case.
  • it may be provided to provide in the bottom flange of the cartridge case approximately along its circumference annularly extending relief bag holes or relief grooves.
  • a relief groove may be provided, which is at a distance of 4 millimeters from the edge of the bottom flange parallel to this, has a width of 2 millimeters and a depth of 4 millimeters.
  • the solution according to the invention is very simple and also inexpensive, since only a slight additional mechanical processing of the bottom flange of the cartridge case is required.
  • FIG. 1 is a partially sectional view of a cartridge ammunition 1 with a caliber of, for example, 40 mm shown.
  • the ammunition 1 comprises a cartridge case 10 and a projectile 11 received therein.
  • a primer 13 and a propellant charge 14 are housed in a screwed into the bottom of the cartridge case 10 cartridge 12 .
  • the cartridge 12 in this case limits a high-pressure chamber 21 in which the propellant charge 14 burns after being ignited by the ignition charge 13.
  • the high-pressure chamber 21 is connected via a plurality of overflow openings 22, which are optionally covered by a damming 23, with a low-pressure space 10 a forming the interior of the cartridge case 10, which is bounded by the walls of the cartridge case 10 and the bottom of the projectile 11.
  • the cartridge 12 is provided on its upper side with an upwardly projecting thread 24, on which a corresponding internal thread 25 is screwed in at the rear of the projectile. In the region of the transition between the upper wall of the cartridge 12 and the thread 24, a predetermined breaking point 12d is provided.
  • the cartridge ammunition described is fired, for example, from rapid-fire weapons as a training ammunition with high firing frequency.
  • the individual cartridges are hereby magazined in a belt 31 indicated only, which surrounds the cartridges in the upper region of the cartridge case 10.
  • the cartridge case. 10 has at its lower edge a slightly above the diameter of the projectile 11 radially projecting bottom flange 32, the bottom of which forms the bottom of the cartridge case.
  • the bottom of the cartridge case one or more recesses 33 are provided according to the invention.
  • the recesses are replaced by a in FIG. 2 shown, parallel to the peripheral edge of the bottom flange 32 groove 33a is formed, which is arranged at a small distance from the peripheral edge.
  • the material thickness of the bottom flange 32 is reduced there and increases the flexural elasticity of the bottom flange.
  • the edge of the bottom flange can then be bent in the Entgurten the cartridge ammunition by the retaining claws of the lock of the rapid-fire weapon "down", whereby the width of the groove is reduced at the bottom of the cartridge case.
  • the recesses are designed as a single blind holes 33b, which, similar to the groove 33a, are located in a circle parallel to the edge of Boderiflansches at a small distance from each other.
  • the blind holes are in turn dimensioned so that they allow a greater deflection of the bottom flange at the edge.
  • FIG. 4 Another way to increase the bending elasticity of the bottom flange 32 is in FIG. 4 shown.
  • the outer edge of the bottom flange 32 with recesses 33d Mistake.
  • These recesses 33d are formed as grooves or the like facing from the circumference of the bottom flange 32 toward the center thereof, which are located at a small distance from each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (10)

  1. Munition encartouchée constituée d'un projectile et d'une douille de cartouche recevant celui-ci, la munition encartouchée étant stockée dans une ceinture pour une arme à feu à tir rapide, et la douille de cartouche comprenant un fond pourvu d'une collerette de fond disposée radialement, la collerette de fond de la douille de cartouche (10) comprenant au moins un évidement (33) qui est configuré et disposé de telle sorte que l'élasticité en flexion de la collerette de fond soit augmentée, caractérisée en ce que l'évidement (33) est réalisé sous la forme d'une rangée d'alésages borgnes (33b) qui sont disposés essentiellement concentriquement au centre de la collerette de fond (32) à proximité du bord extérieur de la collerette de fond.
  2. Munition encartouchée constituée d'un projectile et d'une douille de cartouche recevant celui-ci, la munition encartouchée étant stockée dans une ceinture pour une arme à feu à tir rapide, et la douille de cartouche comprenant un fond pourvu d'une collerette de fond disposée radialement, la collerette de fond de la douille de cartouche (10) comprenant au moins un évidement (33) qui est configuré et disposé de telle sorte que l'élasticité en flexion de la collerette de fond soit augmentée, caractérisée en ce que plusieurs évidements (33) sont prévus, lesquels sont réalisés sous la forme d'encoches ou de rainures (33d) dans le bord extérieur de la collerette de fond.
  3. Munition encartouchée selon la revendication 1 ou 2, caractérisée en ce que les évidements (33) sont disposés le long de la périphérie de la collerette de fond (32) à une faible distance du bord de la collerette de fond (32).
  4. Munition encartouchée selon la revendication 3, caractérisée en ce que les évidements (33) sont des alésages borgnes (33c) partant en forme d'étoile à partir du centre de la collerette de fond (32).
  5. Munition encartouchée selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'au moins une partie des évidements (33) sont disposés radialement dans la collerette de fond (32).
  6. Munition encartouchée selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une cartouche (12) est vissée dans le fond de la douille de cartouche (10), dans laquelle sont placées une charge d'allumage (13) et une charge propulsive (14).
  7. Munition encartouchée selon la revendication 6, caractérisée en ce que la cartouche (12) est pourvue, sur son côté supérieur, d'un filetage (24) faisant saillie vers le haut, sur lequel est vissé un filetage intérieur correspondant (25) à l'arrière du projectile.
  8. Munition encartouchée selon la revendication 7, caractérisée en ce qu'un point de rupture imposée (12d) est prévu dans la région de la transition entre la paroi supérieure de la cartouche (12) et le filetage (24).
  9. Munition encartouchée selon l'une quelconque des revendications 6 à 8, caractérisée en ce que la cartouche (12) délimite un espace haute pression (21) dans lequel la charge propulsive (14) brûle après l'allumage au moyen de la charge d'allumage (13).
  10. Munition encartouchée selon la revendication 9, caractérisée en ce que l'espace haute pression (21) est relié à un espace basse pression (10a) formant l'espace intérieur de la douille de cartouche (10) par le biais de plusieurs ouvertures de débordement (22) qui sont éventuellement recouvertes par une isolation (23), lequel espace basse pression est délimité par les parois de la douille de cartouche (10) et le fond du projectile (11).
EP20090776013 2008-07-25 2009-07-24 Munition encartouchée Not-in-force EP2331902B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008034660A DE102008034660B4 (de) 2008-07-25 2008-07-25 Patronenmunition
PCT/DE2009/001039 WO2010009723A1 (fr) 2008-07-25 2009-07-24 Munition encartouchée

Publications (2)

Publication Number Publication Date
EP2331902A1 EP2331902A1 (fr) 2011-06-15
EP2331902B1 true EP2331902B1 (fr) 2015-05-06

Family

ID=41320024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090776013 Not-in-force EP2331902B1 (fr) 2008-07-25 2009-07-24 Munition encartouchée

Country Status (5)

Country Link
US (1) US8418621B2 (fr)
EP (1) EP2331902B1 (fr)
KR (1) KR101597381B1 (fr)
DE (1) DE102008034660B4 (fr)
WO (1) WO2010009723A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120186480A1 (en) * 2010-05-18 2012-07-26 Mark Allen Rogers 37mm Screw Apart Shell
DE102010034333B4 (de) * 2010-07-06 2014-12-11 Rheinmetall Waffe Munition Gmbh Vollkaliber-Übungsmunition
US9557150B2 (en) * 2013-06-20 2017-01-31 Atlantis Manufacturing Management Services Proprietary Limited Grenade round

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR27729E (fr) * 1923-03-07 1924-08-18 Système de cartouche de chasse avec culot démontable et porte-amorce complémentaire
FR1034881A (fr) * 1951-03-30 1953-08-05 Procédé de fabrication de douilles en acier pour obus et douilles fabriquées suivant ce procédé
FR1034877A (fr) 1951-03-30 1953-08-05 Perfectionnements aux semelles en bois d'objets chaussants tels que sabots et galoches
US2890625A (en) * 1951-06-14 1959-06-16 Frank R Simpson Pre-engraved projectiles and gun for firing same
DE2307907C2 (de) * 1973-02-17 1983-09-01 Rheinmetall GmbH, 4000 Düsseldorf Treibladungshülse
DE2313051A1 (de) * 1973-03-16 1974-09-19 Karlsruhe Augsburg Iweka Patronenhuelse, insbesondere fuer munition mit hohen gasdruecken
US4726296A (en) 1985-04-22 1988-02-23 Action Manufacturing Company Stress modulator ring and microgrooved base for an ammunition cartridge having a plastic case
US4702027A (en) * 1986-08-18 1987-10-27 Stanley Edward T Thermal liner for gun firing chamber
IT1235986B (it) 1989-12-22 1992-12-15 Gordon Consulting Eng Metodo per la realizzazione di bossoli per armi da fuoco e bossolo cosi' ottenuto
DE4034880A1 (de) * 1990-11-02 1991-07-11 Bongers Hermann Huelsenboden mit reduzierter belastungsdehnung
DE19700240C1 (de) 1997-01-07 1998-04-16 Hubert Vogt Patronenhülsen mit eingearbeitetem Stauchkörper zur Höchstgasdruckbestimmung
US7004074B2 (en) * 2002-07-01 2006-02-28 Martin Electronics Controlled fluid energy delivery burst cartridge
SE524623C2 (sv) 2002-08-08 2004-09-07 Bofors Defence Ab Isolerad patronhylsa och ammunition, förfarande för tillverkning av dylika hylsor och ammunition samt användning av dylika hylsor och ammunition vid flera skilda vapensystem
JP2006071179A (ja) 2004-09-02 2006-03-16 Voc Direct:Kk 銃器用弾薬とその弾丸および薬莢

Also Published As

Publication number Publication date
US20110252998A1 (en) 2011-10-20
KR20110053329A (ko) 2011-05-20
WO2010009723A1 (fr) 2010-01-28
US8418621B2 (en) 2013-04-16
EP2331902A1 (fr) 2011-06-15
KR101597381B1 (ko) 2016-02-24
DE102008034660B4 (de) 2012-03-08
DE102008034660A1 (de) 2010-01-28

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