EP0248978B1 - Douille pour charge propulsive - Google Patents

Douille pour charge propulsive Download PDF

Info

Publication number
EP0248978B1
EP0248978B1 EP87102747A EP87102747A EP0248978B1 EP 0248978 B1 EP0248978 B1 EP 0248978B1 EP 87102747 A EP87102747 A EP 87102747A EP 87102747 A EP87102747 A EP 87102747A EP 0248978 B1 EP0248978 B1 EP 0248978B1
Authority
EP
European Patent Office
Prior art keywords
covering
reinforcement
fact
casing
combustible
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
EP87102747A
Other languages
German (de)
English (en)
Other versions
EP0248978A3 (en
EP0248978A2 (fr
Inventor
Udo Dipl.-Ing. Sabranski
Hans Werner Luther
Horst Sabinski
Jürgen Dipl.-Ing. Winkelmann
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
Original Assignee
Rheinmetall 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 GmbH filed Critical Rheinmetall GmbH
Publication of EP0248978A2 publication Critical patent/EP0248978A2/fr
Publication of EP0248978A3 publication Critical patent/EP0248978A3/de
Application granted granted Critical
Publication of EP0248978B1 publication Critical patent/EP0248978B1/fr
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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/70—Combustilbe cartridge

Definitions

  • the invention relates to a partially combustible propellant charge case according to the preamble of claim 1.
  • DE-B 341 861 to reinforce the bottom of wound gun cartridge casings by means of a stiffening ring
  • DE-A 1 578 153 uses a metal insert to reinforce the casing base and an opening for the primer capsule in the axial direction in the case of a propellant charge casing for hunting cartridges and radial direction disclosed.
  • US-A 2 837 456 further discloses a manufacturing method for a large-caliber, lightweight propellant charge sleeve which consists of a separate metallic sleeve base and a front cylindrical sleeve part made of synthetic resin-bonded fiber fabric.
  • This propellant charge shell is not combustible.
  • material separations or sleeve part widening can occur due to the extremely high internal gas pressures when the ammunition is fired. This can lead to the propellant charge sleeve becoming stuck in the tube and associated discharge problems.
  • a multi-layer thin metal band wound around the edge of the sleeve bottom flange can be provided as the reinforcing element of the propellant charge sleeve.
  • Strength problems when handling this ammunition before firing obviously do not occur; the known reinforcing means in the connection area of the non-combustible propellant charge sleeve parts should therefore only avoid negative effects of the high gas pressure and enable the discharged propellant charge sleeve to be better discharged.
  • Propellant charge cases with a cover made of a fleece based on nitrocellulose have the advantage of a small specific weight and the residue-free combustion in weapon tubes under pressure and temperature. Furthermore, there is no "empties" in the fighting rooms, and the CO concentration is very low compared to metal sleeves.
  • the object of the invention is to provide a propellant charge shell, in particular for large-caliber ammunition, with a combustible shell made of a fleece based on nitrocellulose of increased strength, in which the mechanical stresses to be expected, such as. B. handling, loading into the weapon and in particular unloading ammunition, do not cause damage to the combustible shell, but the residue-free combustion of the fleece is maintained without a substantial reduction in the internal loading volume or weight increase of the propellant charge case.
  • stiffeners for the weak points of the propellant charge sleeve, which are connected to the fleece, do not remain in the gun barrel.
  • the stiffeners can be incorporated into the manufacturing tool during the manufacture of the nonwoven and can thus be incorporated or embedded directly into the combustible casing.
  • a floor 1 with sabot 2 is shown, which is connected via a seal 3 to a propellant charge sleeve 4.
  • the propellant charge sleeve 4 has a metallic reusable base 5 with a bore 6 for receiving a primer 7.
  • the propellant charge sleeve 4 also has a cover 8 made of a fleece based on nitrocellulose.
  • the casing 8 has, next to the seal 3, a curved section 9 which is extended to a bore 10 through which the projectile 1 extends.
  • the area 9 can also have an angular section, for example when a projectile 1 without a cage is received by the propellant charge sleeve 4.
  • the sleeve 8 in the bottom area has a curved section 11 in adaptation to the curvature of the bottom 5, which extends on the bottom side to the center pin 12 of the floor containing the bore 6 extends.
  • Sections 9, 11 and the sections around the bore 10 and the central pin 12 are weak points of the casing 8 which are endangered by mechanical stresses. Accordingly, stiffeners 13 made of metal or plastic are provided in these areas.
  • the stiffener 13 consists of a perforated insert made of sheet metal or plastic. Since the base 5 protects the casing 8 in the area 11, the stiffening 13 can optionally also be provided only around the bore 14 surrounding the central pin 12, as shown in FIG. 3. If necessary, a stiffening 13 in the form of a reinforcing ring at this point, as shown in FIG. 9, is also sufficient.
  • the stiffening 13 of the embodiments of FIGS. 2 and 3 has an inner ring 15 delimiting the bore 14.
  • the stiffening 13 is not designed as an insert, as in FIGS. 2 and 3, but rather as a support, which is glued onto the casing 8 from the outside or, as shown in the left half of FIG. 4 is attached by curling.
  • the stiffening 13 can be inserted into the suction tool for producing the casing 8. Since in the embodiment of FIG. 4 the stiffening 13 is only on the outside of the casing 8, no openings in the stiffening 13 are required here, since the residue-free combustion of the casing 8 is ensured.
  • the cross-sectionally L-shaped stiffening 13 is incorporated into the wall of the casing 8, so that the casing 8 has essentially the same wall thickness everywhere.
  • the recess required for this is made by mechanical processing. Since, as a result of this mechanical processing, that area of the casing 8 which has the greatest strength and density area is removed, while the felted central area of the casing 8 remains, a subsequent impregnation of the remaining part of the casing 8 is expedient for solidification thereof.
  • the stiffening 13 is clamped around the casing 8 in the region of the bore 14, the stiffening 13 having holes 16 at least on the inside in order to ensure residue-free combustion of the casing 8.
  • the stiffening 13, as in the embodiment of FIG. 5, is arranged flush with the outer sides of the casing 8 and the casing 8 is expediently re-impregnated in this area.
  • rivet or screw connections 17 can also be used to fasten the U-shaped stiffener 13 in section.
  • the stiffening 13 can also consist of fabric made of metal or plastic, as indicated in FIG. 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Connection Of Plates (AREA)
  • Moulding By Coating Moulds (AREA)
  • Liquid Crystal (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Valve Device For Special Equipments (AREA)
  • Insertion Pins And Rivets (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (6)

1. Douille pour charge propulsive (4), notamment pour une munition de gros calibre, comportant une enveloppe combustible (8) constituée par un non- tissé à base de nitrocellulose, caractérisée en ce que, dans la zone de portions (9, 11) incurvées de l'enveloppe combustible, ayant en coupe une forme angulaire et/ou entourant un alésage, on insère un renforcement (13) en métal ou en matière plastique dans l'enveloppe (8) ou on le fixe sur l'enveloppe (8), le renforcement (13) étant réalisé sous la forme d'un tissu ne gênant pas la combustion sans résidus de l'enveloppe (8), ou étant muni de trous (16).
2. Douille pour charge propulsive selon la revendication 1, caractérisée en ce que le renforcement (13) comporte un anneau intérieur (15) délimitant un alésage (10, 14) dans l'enveloppe (8).
3. Douille pour charge propulsive selon la revendication 1 ou 2, caractérisée en ce que le renforcement (13) est collé et/ou roulé sur l'enveloppe (8).
4. Douille pour charge propulsive selon la revendication 1 ou 2, caractérisée en ce que le renforcement (13) a en coupe la forme d'un U et est serré autour de l'enveloppe (8).
5. Douille pour charge propulsive selon la revendication 4, caractérisée en ce que le renforcement (13) est fixé sur l'enveloppe (8) au moyen de liaisons par rivets ou vis (17).
6. Douille pour charge propulsive selon l'une des revendications 1 à 5, caractérisée en ce que le renforcement (13) est placé en arrivant au niveau des surfaces de l'enveloppe (8) et l'enveloppe (8) reçoit une imprégnation ultérieure dans la zone du renforcement (13).
EP87102747A 1986-06-13 1987-02-26 Douille pour charge propulsive Expired - Lifetime EP0248978B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863619960 DE3619960A1 (de) 1986-06-13 1986-06-13 Treibladungshuelse
DE3619960 1986-06-13

Publications (3)

Publication Number Publication Date
EP0248978A2 EP0248978A2 (fr) 1987-12-16
EP0248978A3 EP0248978A3 (en) 1988-03-30
EP0248978B1 true EP0248978B1 (fr) 1990-06-13

Family

ID=6302952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102747A Expired - Lifetime EP0248978B1 (fr) 1986-06-13 1987-02-26 Douille pour charge propulsive

Country Status (4)

Country Link
US (1) US4928598A (fr)
EP (1) EP0248978B1 (fr)
JP (1) JPS62297699A (fr)
DE (2) DE3619960A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048421A (en) * 1990-08-06 1991-09-17 Olin Corporation Combustible cartridge case base
US5138949A (en) * 1990-09-20 1992-08-18 Olin Corporation Combustible ammunition cartridge case
US6752084B1 (en) 1999-01-15 2004-06-22 Amtech, Inc. Ammunition articles with plastic components and method of making ammunition articles with plastic components
US7441504B2 (en) * 1999-01-15 2008-10-28 Development Capital Management Company Base for a cartridge casing body for an ammunition article, a cartridge casing body and an ammunition article having such base, wherein the base is made from plastic, ceramic, or a composite material
FR2799831B1 (fr) * 1999-10-13 2001-11-30 Giat Ind Sa Dispositif de fixation d'un culot obturateur sur un etui de munition et culot adapte a un tel dispositif
US6505560B1 (en) * 2001-08-07 2003-01-14 Alliant Techsystems Inc. Spring disc for securing a combustible cartridge case to a case base
US7059234B2 (en) * 2003-05-29 2006-06-13 Natec, Inc. Ammunition articles and method of making ammunition articles
US9470485B1 (en) 2004-03-29 2016-10-18 Victor B. Kley Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control
FR2869101B1 (fr) * 2004-04-15 2006-06-02 Giat Ind Sa Munition sans douille et procede de montage d'une telle munition
DE102007001655A1 (de) 2007-01-04 2008-07-10 Nitrochemie Aschau Gmbh Formteil sowie Verfahren zum Herstellen des Formteils
KR101419787B1 (ko) 2009-08-04 2014-07-15 니트로케미에 아샤우 게엠베하 추진제 파우더를 수용하는 슬리브
US9921017B1 (en) 2013-03-15 2018-03-20 Victor B. Kley User identification for weapons and site sensing fire control
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

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE527369A (fr) *
DE341861C (fr) *
US2837456A (en) * 1952-02-29 1958-06-03 Kellogg M W Co Filament wound container
IT599574A (fr) * 1957-11-18
US3194158A (en) * 1958-03-26 1965-07-13 Jr James T Paul Explosive weapon casing and method of making same
US3095813A (en) * 1961-07-05 1963-07-02 Henry S Lipinski Propellant container, plastic impregnated glass
BE622518A (fr) * 1961-09-18
NL128849C (fr) * 1962-09-05
US3170401A (en) * 1962-09-11 1965-02-23 Walter T Johnson Cartridge case
GB1075814A (en) * 1965-02-24 1967-07-12 Isidore Groudan Nadel A process and apparatus for the manufacture of articles from fibrous material
DE1578153A1 (de) * 1965-07-31 1970-09-03 Gianni Isalberti Kunststoffhuelse mit Metalleinsatz,insbesondere fuer Jagdpatronen
US3617593A (en) * 1967-01-03 1971-11-02 Teledyne Inc Method for making reinforced ignition-tube of reinforced polyurethane foam
US3696748A (en) * 1969-12-29 1972-10-10 Us Army Means for improving burnout of consumable cartridge cases
US3706279A (en) * 1971-01-20 1972-12-19 Us Army Combustible cartridge case
US3832951A (en) * 1973-01-17 1974-09-03 Us Army Ammunition round with non-rigid attachment of projectile to cartridge case
DE2303790C3 (de) * 1973-01-26 1981-08-20 Rheinmetall GmbH, 4000 Düsseldorf Treibladungshülse
DE2323244C3 (de) * 1973-05-09 1979-04-19 Rheinmetall Gmbh, 4000 Duesseldorf Flügelstabilisiertes Unterkalibergeschoß
DE2641665C2 (de) * 1976-09-16 1984-03-01 Rheinmetall GmbH, 4000 Düsseldorf Treibladungshülse
DE3332675C2 (de) * 1983-09-10 1986-10-02 Rheinmetall GmbH, 4000 Düsseldorf Heckseitige Dichtscheibe aus elastischem Material für einen Treibkäfig

Also Published As

Publication number Publication date
DE3763250D1 (de) 1990-07-19
DE3619960A1 (de) 1987-12-17
US4928598A (en) 1990-05-29
EP0248978A3 (en) 1988-03-30
JPS62297699A (ja) 1987-12-24
EP0248978A2 (fr) 1987-12-16
DE3619960C2 (fr) 1988-06-30

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