EP1031006A1 - Cartouche pour le balisage et son procede de fabrication - Google Patents

Cartouche pour le balisage et son procede de fabrication

Info

Publication number
EP1031006A1
EP1031006A1 EP98963416A EP98963416A EP1031006A1 EP 1031006 A1 EP1031006 A1 EP 1031006A1 EP 98963416 A EP98963416 A EP 98963416A EP 98963416 A EP98963416 A EP 98963416A EP 1031006 A1 EP1031006 A1 EP 1031006A1
Authority
EP
European Patent Office
Prior art keywords
cartridge case
bulge
cartridge
pressed
rimfire
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.)
Granted
Application number
EP98963416A
Other languages
German (de)
English (en)
Other versions
EP1031006B1 (fr
Inventor
Uwe Brede
Jochen Candidus
Heinz Riess
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.)
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
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 Dynamit Nobel AG, Dynamit Nobel GmbH Explosivstoff und Systemtechnik filed Critical Dynamit Nobel AG
Publication of EP1031006A1 publication Critical patent/EP1031006A1/fr
Application granted granted Critical
Publication of EP1031006B1 publication Critical patent/EP1031006B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F42B5/26—Cartridge cases
    • F42B5/32—Cartridge cases for rim fire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/54—Making hollow objects characterised by the use of the objects cartridge cases, e.g. for ammunition, for letter carriers in pneumatic-tube plants

Definitions

  • the invention relates to an edge fire cartridge according to the preamble of claim 1 and a method for producing an edge fire cartridge according to the preamble of claim 6.
  • FIG. 1 A rimfire cartridge according to the prior art is shown in FIG. 1.
  • a cartridge case 2 has on its base 3 a radial bulge 10, into which an ignition charge 1 is inserted.
  • the cartridge case 2 is filled with propellant charge powder 1 1 and the propellant charge container 2 is closed with a projectile 12.
  • Known igniter sets 1 contain heavy metals and are very sensitive to impact and friction, ie. H. that the known rimfire cartridges ensure a uniform and complete implementation of the firing charge with a shorter firing time t ⁇ 1 ms even with a low firing pin energy.
  • Modern, environmentally friendly igniter kits are less susceptible to friction and impact than the known pollutant-containing igniter kits and, in conjunction with the known rimfire cartridges, can result in very long ignition times or even failure when ignited.
  • the invention has for its object to improve a rimfire cartridge according to the preamble of claim 1 and a method for producing an edge fire cartridge according to the preamble of claim 6 such that a complete and uniform implementation of the firing charge with short firing times even with low-pollutant priming charges at low firing pin energy is guaranteed so that ignition failures are eliminated.
  • this object is achieved with respect to the rimfire cartridge in that the bottom of the cartridge case is pressed inwards at least in some areas and the opening of the bulge toward the interior of the cartridge case is thereby reduced.
  • the bottom is pressed inward in the axial direction in the circumference of the inner diameter of the cartridge case.
  • the firing pin energy is thus used exclusively for the deformation of the bulge or, as is also said, for the deformation of the slot in which the primer is located, and does not have to experience any losses due to deformation of the base in the center of the base of the cartridge case. This significantly improves the sensitivity to ignition.
  • the bulge is re-pressed after the ignition charge has been introduced, thereby compressing the ignition charge. This improves the implementation of the primer. In certain cases, depending on the choice of primer, this compression or repressing of the bulge can also be dispensed with.
  • the bulge is compressed or repressed using a tool with flat pressure surfaces, eg B. a pair of pliers.
  • a tool with flat pressure surfaces eg B. a pair of pliers.
  • the bulge has a more rectangular cross section.
  • An alternative advantageous embodiment is characterized in that the bulge is pressed with a sharp-edged tool, only the region of the bulge adjacent to the cartridge case being pressed. As a result, the bulge has a more teardrop-shaped cross section.
  • the object is achieved with regard to the method for producing a rimfire cartridge in that the bottom of the Cartridge case is pressed inwards at least in some areas, thereby reducing the opening of the bulge towards the inside of the cartridge case.
  • the bottom of the cartridge case is advantageously pressed inward in the axial direction in the circumference of the inner diameter of the cartridge case.
  • the bulge for compression is advantageously re-pressed after the firing charge has been introduced. This is done in one embodiment with a tool with flat pressure surfaces and in another embodiment with a sharp-edged tool, only the region of the bulge adjacent to the cartridge case being pressed in.
  • FIG. 2 shows a cartridge case of a rimfire cartridge according to the invention in cross section, FIG. 2b showing an enlarged section of the bulge and
  • Fig. 3 shows an alternative cartridge case of a rimfire cartridge according to the invention also with an enlarged section of the bulge in Fig. 3b.
  • this rimfire cartridge is identical to the rimfire cartridges according to the invention described below.
  • Fig. 2a shows a cartridge case 2 of a rimfire cartridge according to the invention in section.
  • a circumferential bulge 10 is attached to the bottom 3 of the cartridge case 2. arranges, in which an ignition charge is usually introduced in liquid form when filling (see Fig. 1).
  • the bottom 3 of the cartridge case is pressed axially inwards in the entire area except for the actual bulge 10, so that a dome-shaped bottom 3 is formed.
  • 2b shows the area of the bulge 10 on an enlarged scale. It can be clearly seen that the opening 13 of the bulge 10 towards the inside of the cartridge case 2 is reduced by pressing in the base 3, thereby damaging the ignition charge introduced.
  • 2b shows the bulge 10 after the re-pressing with a tool with flat pressure surfaces. Before the repressing, the bulge 10 or the sleeve edge 7 had the contour 8 shown in dashed lines in the figure. This repressing compresses the ignition charge, not shown.
  • the reference number 9 shows the radial width of the bulge 10.
  • the reference number 5 shows the desired excess of the height of the bulge 10 before the re-pressing.
  • the reference number 4 indicates the height of the bulge 10 after the re-pressing.
  • the tolerated inner edge height of the bulge 10 after the re-pressing is indicated by the reference number 6.
  • 3a shows an alternative embodiment of the cartridge case 2 or the bulge 10.
  • the base 3 is pressed axially inwards, so that the opening 13 of the bulge 10 towards the interior of the cartridge case 2 is reduced (see FIG. 3b) .
  • 3b shows the bulge 10 again on an enlarged scale.
  • the bulge 10 or the sleeve edge 7 has been pressed here from the desired oversize 5 (see dashed contour 8) to the required final height 4, so that a tolerated inner edge height 6 has arisen.
  • the repressing was carried out using a sharp-edged tool which only pressed in the region of the bulge 10 or the sleeve edge 7 adjoining the cartridge wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Lighters Containing Fuel (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne une cartouche destinée au balisage et son procédé de production. Ladite cartouche comporte une douille (2) sur laquelle est placé un projectile, une poudre propulsive placée à l'intérieur de ladite douille (2) et une composition d'allumage pour la poudre propulsive. La douille (2) présente, sur son culot (3), un bossage (10) périphérique radial dans lequel la composition d'allumage est disposée. Afin qu'il soit possible d'obtenir, avec des compositions d'allumage pauvres en matières nocives, une réaction complète et régulière de ces compositions d'allumage et des temps d'allumage courts, il est proposé que le culot (3) de la douille soit, au moins dans des zones partielles, enfoncé vers l'intérieur et qu'ainsi l'ouverture (13) formée par le bossage (10) soit réduite en direction de l'intérieur de la douille (2).
EP98963416A 1997-11-11 1998-11-06 Cartouche pour le balisage et son procede de fabrication Expired - Lifetime EP1031006B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19749737 1997-11-11
DE19749737A DE19749737A1 (de) 1997-11-11 1997-11-11 Randfeuerpatrone
PCT/EP1998/007084 WO1999024779A1 (fr) 1997-11-11 1998-11-06 Cartouche pour le balisage et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1031006A1 true EP1031006A1 (fr) 2000-08-30
EP1031006B1 EP1031006B1 (fr) 2002-11-13

Family

ID=7848247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98963416A Expired - Lifetime EP1031006B1 (fr) 1997-11-11 1998-11-06 Cartouche pour le balisage et son procede de fabrication

Country Status (7)

Country Link
US (1) US6352033B1 (fr)
EP (1) EP1031006B1 (fr)
KR (1) KR100564084B1 (fr)
AU (1) AU749127B2 (fr)
DE (2) DE19749737A1 (fr)
WO (1) WO1999024779A1 (fr)
ZA (1) ZA9810313B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM363973U (en) * 2009-04-28 2009-09-01 Chung-Yi Lee Fired pin assembly for powder actuated nail gun
GB201205243D0 (en) 2012-03-26 2012-05-09 Kraft Foods R & D Inc Packaging and method of opening
GB2511560B (en) 2013-03-07 2018-11-14 Mondelez Uk R&D Ltd Improved Packaging and Method of Forming Packaging
GB2511559B (en) 2013-03-07 2018-11-14 Mondelez Uk R&D Ltd Improved Packaging and Method of Forming Packaging
US10976144B1 (en) 2018-03-05 2021-04-13 Vista Outdoor Operations Llc High pressure rifle cartridge with primer
AU2020257870B2 (en) 2019-04-05 2023-09-07 Federal Cartridge Company High velocity, rimfire cartridge
USD937962S1 (en) * 2019-04-05 2021-12-07 Vista Outdoor Operations Llc Firearm cartridge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2003438A (en) * 1933-03-01 1935-06-04 Asturienne Mines Comp Royale Tool for making cartridge shells
US2522208A (en) * 1946-06-26 1950-09-12 Remington Arms Co Inc Ammunition
BE550657A (fr) * 1955-08-29
US3257892A (en) * 1964-07-17 1966-06-28 Olin Mathieson Rim-fire improvement
US3452578A (en) * 1967-09-21 1969-07-01 Dynamit Nobel Ag Process and apparatus for manufacturing unilaterally closed cases with a bottom fold
FR2293686A1 (fr) * 1974-12-03 1976-07-02 Gruaz Eric Douille pour balle a blanc, balle reelle de petit calibre ou charge de pistolet de scellement, d'abattage ou autres, et son procede de fabrication
FR2672982B1 (fr) * 1991-02-20 1995-03-10 Ncs Pyrotechnie Technologies Procede et dispositif d'amorcage d'etuis de munitions ou de charges de scellement a percussion annulaire.
US5490463A (en) * 1993-09-20 1996-02-13 Federal-Hoffman, Inc. Match performance .22 caliber cartridge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9924779A1 *

Also Published As

Publication number Publication date
US6352033B1 (en) 2002-03-05
KR100564084B1 (ko) 2006-03-27
KR20010031971A (ko) 2001-04-16
AU749127B2 (en) 2002-06-20
DE59806296D1 (de) 2002-12-19
EP1031006B1 (fr) 2002-11-13
DE19749737A1 (de) 1999-05-12
WO1999024779A1 (fr) 1999-05-20
AU1871199A (en) 1999-05-31
ZA9810313B (en) 1999-05-18

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