EP0348382A1 - Annular primer in a firearm ammunition, in particular rifle cartridge - Google Patents

Annular primer in a firearm ammunition, in particular rifle cartridge Download PDF

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Publication number
EP0348382A1
EP0348382A1 EP89890166A EP89890166A EP0348382A1 EP 0348382 A1 EP0348382 A1 EP 0348382A1 EP 89890166 A EP89890166 A EP 89890166A EP 89890166 A EP89890166 A EP 89890166A EP 0348382 A1 EP0348382 A1 EP 0348382A1
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EP
European Patent Office
Prior art keywords
ignition
ring
cartridge
firearm ammunition
annular primer
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
EP89890166A
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German (de)
French (fr)
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EP0348382B1 (en
Inventor
Ulrich Zedrosser
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.)
Steyr Daimler Puch AG
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Steyr Daimler Puch AG
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Publication of EP0348382A1 publication Critical patent/EP0348382A1/en
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Publication of EP0348382B1 publication Critical patent/EP0348382B1/en
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
    • F42B5/26—Cartridge cases
    • F42B5/32—Cartridge cases for rim fire

Definitions

  • the invention relates to a ring igniter for firearm ammunition, in particular a rifle cartridge, with a hollow ignition ring receiving an ignition means.
  • an ignition device arranged laterally next to the loading space or a radially penetrating firing pin into the loading space. require ammunition equipped with circumferential fuses, and it is already known to use circumferential, groove-filled pockets of the cartridge cases as ring primers (US Pat. Nos. 2,379,056 and 3,611,937).
  • a ring igniter with a self-contained hollow ignition ring has also already been proposed for caseless cartridges (US Pat. Nos. 3,808,973, 3,916,793, 4,236,451 and 4,537,134). which consists of paper or other easily flammable material and contains an ignition agent filling, so that local squeezing of the ignition agent leads to the actual ignition.
  • these known ring detonators can be filled with ignition means only with great difficulty and therefore involve a considerable manufacturing outlay.
  • they require a special abutment in the form of the bullet used in the cartridge case or a special design of the cartridge sleeve to or the like by the firing pin. to be able to actually use the applied ignition energy to squeeze the ignition means and not to make it ineffective due to excessive deformation work.
  • these special abutments make the positioning of the ring fuse dependent on the respective cartridge or its abutment design, which considerably complicates the adaptation of the ring fuse ammunition to the respective ignition systems of different firearms.
  • the invention is therefore based on the object to remedy these deficiencies and to create a ring fuse of the type described, which can be produced rationally, ensures a largely free use of the actual design of the cartridge, and also offers full functional reliability in cartridges with plastic sleeves.
  • the ignition ring has a substantially U-shaped, axially aligned cross section, the inner leg and preferably the bottom of which are reinforced with respect to the outer leg.
  • This simple open ignition ring can be manufactured economically and filled without any problems.
  • the reinforced inner leg and the reinforced bottom which further increases the resulting rigidity, it itself forms the abutment required for the ignition process and the remaining outer leg, which can be particularly thin-walled, additionally facilitates the squeezing of the ignition means by an ignition pin.
  • the ignition ring can be used without a third-party abutment and is suitable for a wide variety of cartridges and ammunition types with or without plastic sleeves can be chosen.
  • the ignition ring can also be used with its open side in or against the direction of the shot in order to influence the combustion process when igniting and burning off the propellant charge, with the open ignition ring also ensuring immediate and uniform ignition of the propellant charge on the circumference.
  • the ignition ring is made of aluminum or an aluminum alloy and the thickness of the inner leg and, if applicable, of the base corresponds approximately to twice the thickness of the outer leg, a resistant, functionally reliable ring igniter results in a particularly economical manner.
  • a cartridge 1 has a projectile 2 and a sleeve 4 receiving a propellant charge 3.
  • the cartridge 1 is equipped with a ring detonator 5, which consists of an ignition ring 6 with a U-shaped cross section and an ignition means 7 pressed into the cavity of the U-shaped cross section.
  • the inner leg 6a and the bottom 6b of the ignition ring 6 are reinforced with respect to the outer leg 6c, so that the inner leg 6a and bottom 6b themselves form the abutment for a squeezing of the ignition means 7 required for ignition by the radial action of an ignition pin.
  • the ignition ring 6 is filled in a rational manner outside the sleeve 4 with the ignition means, or the like by a seal.
  • the primer filling is closed and thus secured against falling out during assembly or protected against becoming damp and then can usually be inserted into the sleeve 4 mostly with the open side first.
  • the axial position of the ring detonator 5 can be freely selected as a function of the ignition system of the associated weapon within the sleeve 4 and, in itself, a corresponding press fit is sufficient for fixing it in position, but also forms of the Sleeve or other spacers for positioning the ring igniter within the sleeve 4 may be provided.

Abstract

An annular primer (5) for firearm ammunition has a hollow ignition ring (6) receiving a detonating agent (7). In order to obtain a functionally reliable annular primer (5) which can be produced in a simple way and which can be used independently of additional abutments, the ignition ring (6) has an essentially U-shaped, axially oriented cross-section, of which the inner leg (6a) and preferably the base (6b) are reinforced in relation to the outer leg (6c). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Ringzünder für eine Schußwaffenmunition, insbesondere Gewehrpatrone, mit einem hohlen, ein Zündmittel aufnehmenden Zündring.The invention relates to a ring igniter for firearm ammunition, in particular a rifle cartridge, with a hollow ignition ring receiving an ignition means.

Schußwaffen, die eine seitlich neben dem Laderaum angeordnete Zündeinrichtung bzw. einen radial in den Laderaum eindringenden Zündstift od.dgl. aufweisen, verlangen eine mit Umfangszündern ausgerüstete Munition, wobei es bereits bekannt ist, ringnut­förmig umlaufende, zündmittelgefüllte Taschen der Patronenhülsen als Ringzünder zu verwenden (US-A-2 379 056 und US-A-3 611 937). Auch wurde für hülsenlose Patronen bereits ein Ringzünder mit einem in sich geschlossenen hohlen Zündring vorgeschlagen (US-A-3 808 973, US-A-3 916 793, US-A-4 236 451 und US-A-4 537 134), der aus Papier oder anderem leicht brennbaren Material besteht und eine Zündmittelfüllung enthält, so daß eine örtliche Quetschung des Zündmittels zur eigentlichen Zündung führt. Diese bekannten Ringzünder lassen sich allerdings nur recht umständlich mit Zündmittel füllen und bringen daher einen beträchtlichen Herstellungsaufwand mit sich. Darüber hinaus erfordern sie ein besonderes Widerlager in Form des in der Patronenhülse eingesetzten Geschosses oder einer speziellen Ausgestaltung der Patronenhülse, um die durch den Zündstift od.dgl. aufgebrachte Zündenergie auch tatsächlich zum Quetschen des Zündmittels nutzen zu können und sie nicht auf Grund zu starker Verformungsarbeiten unwirksam werden zu lassen. Abgesehen vom damit verbundenen Mehraufwand, machen diese speziellen Widerlager aber die Positionierung des Ringzünders von der jeweiligen Patrone bzw. deren Widerlagerausbildung abhängig, was die Anpassung der Ringzündermunition an die jeweiligen Zündsysteme verschiedener Schußwaffen beträchtlich erschwert.Firearms or the like, an ignition device arranged laterally next to the loading space or a radially penetrating firing pin into the loading space. require ammunition equipped with circumferential fuses, and it is already known to use circumferential, groove-filled pockets of the cartridge cases as ring primers (US Pat. Nos. 2,379,056 and 3,611,937). A ring igniter with a self-contained hollow ignition ring has also already been proposed for caseless cartridges (US Pat. Nos. 3,808,973, 3,916,793, 4,236,451 and 4,537,134). which consists of paper or other easily flammable material and contains an ignition agent filling, so that local squeezing of the ignition agent leads to the actual ignition. However, these known ring detonators can be filled with ignition means only with great difficulty and therefore involve a considerable manufacturing outlay. In addition, they require a special abutment in the form of the bullet used in the cartridge case or a special design of the cartridge sleeve to or the like by the firing pin. to be able to actually use the applied ignition energy to squeeze the ignition means and not to make it ineffective due to excessive deformation work. Apart from the additional effort involved, these special abutments make the positioning of the ring fuse dependent on the respective cartridge or its abutment design, which considerably complicates the adaptation of the ring fuse ammunition to the respective ignition systems of different firearms.

Es gibt auch schon Patronen für Apparate zum Einschließen von Befestigungsmittel in Werkstücke mit einem spulenförmigen Ringzünder (US-A-2 931 039 und US-A-3 060 855), dessen offene Umfangsnut eine Zündmittelfüllung aufnimmt. Auch hier bereitet die Befüllung der offenen Nut Schwierigkeiten und ist durch die Notwendigkeit des nachträglichen Pressens des Zündmittels recht aufwendig. Weiters kommt es zu Schwankungen in der Zünd­charakteristik und zu Ungleichmäßigkeiten beim Zünden der nur durch Randkerben zugänglichen Treibladung in der Patronenhülse. Da das Zündmittel zum Zünden zwischen Spulenkörper und Patronenhülse gequetscht werden muß, sind diese Zünder außerdem für Kunststoffhülsen ungeeignet, die den Anschlag des Zündstiftes dämpfen und Zündversager befürchten lassen.There are also cartridges for apparatus for enclosing fasteners in workpieces with a coil-shaped ring igniter (US-A-2 931 039 and US-A-3 060 855), the open circumferential groove of which receives an ignition agent filling. Here, too, the filling of the open groove presents difficulties and is quite complex due to the need to subsequently press the ignition means. Furthermore, there are fluctuations in the ignition characteristics and irregularities in the ignition of the propellant charge in the cartridge case, which is only accessible through edge notches. Since the ignition means must be squeezed between the bobbin and the cartridge case for ignition, these detonators are also unsuitable for plastic sleeves that dampen the stop of the ignition pin and fear ignition failure.

Der Erfindung liegt daher die Aufgabe zugrunde, diese Mängel zu beseitigen und einen Ringzünder der eingangs geschilderten Art zu schaffen, der rationell herstellbar ist, eine weitgehend von der eigentlichen Ausgestaltung der Patrone freie Einsatz­möglichkeit gewährleistet und auch bei Patronen mit Kunststoff­hülsen volle Funktionssicherheit bietet.The invention is therefore based on the object to remedy these deficiencies and to create a ring fuse of the type described, which can be produced rationally, ensures a largely free use of the actual design of the cartridge, and also offers full functional reliability in cartridges with plastic sleeves.

Die Erfindung löst diese Aufgabe dadurch, daß der Zündring einen im wesentlichen U-förmigen, axial ausgerichteten Querschnitt besitzt, dessen Innenschenkel und vorzugsweise dessen Boden gegenüber dem Außenschenkel verstärkt sind. Dieser einfache offene Zündring läßt sich wirtschaftlich fertigen und problemlos befüllen. Er bildet darüber hinaus mit seinem verstärkten Innenschenkel und dem die sich ergebende Steifigkeit weiter erhöhenden verstärkten Boden selbst das für den Zündvorgang erforderliche Widerlager und der verbleibende Außenschenkel, der besonders dünnwandig sein kann, erleichtert dabei zusätzlich die Quetschung des Zündmittels durch einen Zündstift. Der Zündring ist ohne ein fremdes Widerlager einzusetzen und eignet sich für die verschiedensten Patronen und Munitionsarten mit oder ohne Kunststoffhülsen, wobei seine Lage jeweils in Abhängigkeit vom Zündsystem der zugehörigen Schußwaffen in weiten Bereichen frei gewählt werden kann. Auch läßt sich der Zündring mit seiner offenen Seite in oder gegen Schußrichtung einsetzen, um den Verbrennungsvorgang beim Zünden und Abbrennen der Treibladung zu beeinflussen, wobei durch den offenen Zündring auch eine unmittelbare und umfangsseitig gleichmäßige Zündung der Treib­ladung gewährleistet ist.The invention solves this problem in that the ignition ring has a substantially U-shaped, axially aligned cross section, the inner leg and preferably the bottom of which are reinforced with respect to the outer leg. This simple open ignition ring can be manufactured economically and filled without any problems. In addition, with its reinforced inner leg and the reinforced bottom, which further increases the resulting rigidity, it itself forms the abutment required for the ignition process and the remaining outer leg, which can be particularly thin-walled, additionally facilitates the squeezing of the ignition means by an ignition pin. The ignition ring can be used without a third-party abutment and is suitable for a wide variety of cartridges and ammunition types with or without plastic sleeves can be chosen. The ignition ring can also be used with its open side in or against the direction of the shot in order to influence the combustion process when igniting and burning off the propellant charge, with the open ignition ring also ensuring immediate and uniform ignition of the propellant charge on the circumference.

Besteht der Zündring aus Aluminium bzw. einer Aluminiumlegierung und entspricht die Stärke des Innenschenkels und gegebenenfalls des Bodens etwa der doppelten Stärke des Außenschenkels, ergibt sich auf besonders wirtschaftliche Weise ein widerstandsfähiger, funktionssicherer Ringzünder.If the ignition ring is made of aluminum or an aluminum alloy and the thickness of the inner leg and, if applicable, of the base corresponds approximately to twice the thickness of the outer leg, a resistant, functionally reliable ring igniter results in a particularly economical manner.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise an Hand einer im Axialschnitt dargestellten Patrone mit erfindungsgemäßem Ringzünder veranschaulicht.In the drawing, the subject matter of the invention is illustrated, for example, with the aid of a cartridge shown in axial section with a ring igniter according to the invention.

Eine Patrone 1 weist ein Geschoß 2 und eine eine Treibladung 3 aufnehmende Hülse 4 auf. Die Patrone 1 ist mit einem Ringzünder 5 bestückt, der aus einem im Querschnitt U-förmigen Zündring 6 und einem in den Hohlraum des U-förmigen Querschnittes einge­preßten Zündmittel 7 besteht. Der Innenschenkel 6a und der Boden 6b des Zündringes 6 sind dabei gegenüber dem Außenschenkel 6c verstärkt, so daß Innenschenkel 6a und Boden 6b selbst das Widerlager für ein zum Zünden erforderliches Quetschen des Zündmittels 7 durch die radiale Einwirkung eines Zündstiftes bilden. Der Zündring 6 wird auf rationelle Weise außerhalb der Hülse 4 mit dem Zündmittel befüllt, wobei durch eine Versiegelung od.dgl. die Zündmittelfüllung verschlossen und somit vor einem Herausfallen bei der Montage gesichert oder vor einem Feuchtwerden geschützt und dann einfach meist mit der offenen Seite voran in die Hülse 4 eingesetzt werden kann. Die axiale Lage des Ringzünders 5 läßt sich in Abhängigkeit vom Zündsystem der zugehörigen Waffe innerhalb der Hülse 4 frei wählen und zu seiner Lagefixierung genügt an und für sich ein entsprechender Preßsitz, doch könnten auch Ausformungen der Hülse oder andere Abstandhalter zur Positionierung des Ringzünders innerhalb der Hülse 4 vorgesehen sein.A cartridge 1 has a projectile 2 and a sleeve 4 receiving a propellant charge 3. The cartridge 1 is equipped with a ring detonator 5, which consists of an ignition ring 6 with a U-shaped cross section and an ignition means 7 pressed into the cavity of the U-shaped cross section. The inner leg 6a and the bottom 6b of the ignition ring 6 are reinforced with respect to the outer leg 6c, so that the inner leg 6a and bottom 6b themselves form the abutment for a squeezing of the ignition means 7 required for ignition by the radial action of an ignition pin. The ignition ring 6 is filled in a rational manner outside the sleeve 4 with the ignition means, or the like by a seal. the primer filling is closed and thus secured against falling out during assembly or protected against becoming damp and then can usually be inserted into the sleeve 4 mostly with the open side first. The axial position of the ring detonator 5 can be freely selected as a function of the ignition system of the associated weapon within the sleeve 4 and, in itself, a corresponding press fit is sufficient for fixing it in position, but also forms of the Sleeve or other spacers for positioning the ring igniter within the sleeve 4 may be provided.

Claims (2)

1. Ringzünder (5) für eine Schußwaffenmunition, insbesondere Gewehrpatrone (1), mit einem hohlen, ein Zündmittel (7) aufnehmenden Zündring (6), dadurch gekennzeichnet, daß der Zündring (6) einen im wesentlichen U-förmigen, axial ausgerichteten Querschnitt besitzt, dessen Innenschenkel (6a) und vorzugsweise dessen Boden (6b) gegenüber dem Außenschenkel (6c) verstärkt sind.1. Ring detonator (5) for firearm ammunition, in particular rifle cartridge (1), with a hollow, an ignition means (7) receiving the ignition ring (6), characterized in that the ignition ring (6) has a substantially U-shaped, axially aligned cross section has, whose inner leg (6a) and preferably the bottom (6b) are reinforced with respect to the outer leg (6c). 2. Ringzünder nach Anspruch 1, dadurch gekennzeichnet, daß der Zündring (6) aus Aluminium bzw. einer Aluminiumlegierung besteht und die Stärke des Innenschenkels (6a) und gegebenenfalls des Bodens (6b) etwa der doppelten Stärke des Außenschenkels (6c) entspricht.2. Ring igniter according to claim 1, characterized in that the ignition ring (6) consists of aluminum or an aluminum alloy and the thickness of the inner leg (6a) and optionally the bottom (6b) corresponds approximately to twice the thickness of the outer leg (6c).
EP89890166A 1988-06-21 1989-06-15 Annular primer in a firearm ammunition, in particular rifle cartridge Expired - Lifetime EP0348382B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1601/88A AT392845B (en) 1988-06-21 1988-06-21 RINGZUNZER FOR A FIREARM AMMUNITION, IN PARTICULAR RIFLE CARTRIDGE
AT1601/88 1988-06-21

Publications (2)

Publication Number Publication Date
EP0348382A1 true EP0348382A1 (en) 1989-12-27
EP0348382B1 EP0348382B1 (en) 1992-05-13

Family

ID=3516944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890166A Expired - Lifetime EP0348382B1 (en) 1988-06-21 1989-06-15 Annular primer in a firearm ammunition, in particular rifle cartridge

Country Status (8)

Country Link
US (1) US4928597A (en)
EP (1) EP0348382B1 (en)
AT (1) AT392845B (en)
AU (1) AU606284B2 (en)
BR (1) BR8902880A (en)
DE (1) DE58901382D1 (en)
ES (1) ES2031009T3 (en)
GR (1) GR3005193T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931039A (en) * 1955-08-29 1960-04-05 Olin Mathieson Cartridge firing apparatus
US3808973A (en) * 1971-05-31 1974-05-07 Giulo Fiocchi Spa Self-propelling projectile for firearms
EP0255996A2 (en) * 1986-07-08 1988-02-17 STEYR-DAIMLER-PUCH Aktiengesellschaft Cartridge for fire arms

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1317609A (en) * 1919-09-30 Detonator
FR703809A (en) * 1929-10-23 1931-05-06 Anciens Ets Skoda Delay for percussion flares
US2379056A (en) * 1943-07-20 1945-06-26 Hercules Powder Co Ltd Propellent powder
FR1210603A (en) * 1947-03-24 1960-03-09 Tech De Rech S Ind & Mecanique Priming improvements
BE550657A (en) * 1955-08-29
US3611937A (en) * 1969-05-15 1971-10-12 Friedrich G Hildebrand Reloadable adaptor for rim-fire cartridges
US3786761A (en) * 1972-06-28 1974-01-22 Us Army Cartridge ignition system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2931039A (en) * 1955-08-29 1960-04-05 Olin Mathieson Cartridge firing apparatus
US3808973A (en) * 1971-05-31 1974-05-07 Giulo Fiocchi Spa Self-propelling projectile for firearms
US4537134A (en) * 1971-05-31 1985-08-27 Giulio Fiocchi S.P.A. Self-propelling projectile for firearms
EP0255996A2 (en) * 1986-07-08 1988-02-17 STEYR-DAIMLER-PUCH Aktiengesellschaft Cartridge for fire arms

Also Published As

Publication number Publication date
DE58901382D1 (en) 1992-06-17
GR3005193T3 (en) 1993-05-24
EP0348382B1 (en) 1992-05-13
ATA160188A (en) 1990-11-15
BR8902880A (en) 1990-02-01
US4928597A (en) 1990-05-29
AT392845B (en) 1991-06-25
ES2031009T3 (en) 1992-11-16
AU3621489A (en) 1990-01-04
AU606284B2 (en) 1991-01-31

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