EP3030858B1 - Electromechanical percussion cap - Google Patents

Electromechanical percussion cap Download PDF

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Publication number
EP3030858B1
EP3030858B1 EP14749785.3A EP14749785A EP3030858B1 EP 3030858 B1 EP3030858 B1 EP 3030858B1 EP 14749785 A EP14749785 A EP 14749785A EP 3030858 B1 EP3030858 B1 EP 3030858B1
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EP
European Patent Office
Prior art keywords
pole piece
firing bridge
pole
bore
cap according
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.)
Active
Application number
EP14749785.3A
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German (de)
French (fr)
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EP3030858A1 (en
Inventor
Andreas Winter
Wolfgang Mosig
Ulrich Bley
Aleksej Hoschenko
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RWS GmbH
Original Assignee
RUAG Ammotec GmbH
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Publication date
Application filed by RUAG Ammotec GmbH filed Critical RUAG Ammotec GmbH
Priority to RS20181014A priority Critical patent/RS57713B1/en
Priority to SI201430863T priority patent/SI3030858T1/en
Priority to PL14749785T priority patent/PL3030858T3/en
Publication of EP3030858A1 publication Critical patent/EP3030858A1/en
Application granted granted Critical
Publication of EP3030858B1 publication Critical patent/EP3030858B1/en
Priority to HRP20181390TT priority patent/HRP20181390T1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/12—Primers; Detonators electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/128—Bridge initiators characterised by the composition of the pyrotechnic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/12—Primers; Detonators electric
    • F42C19/14—Primers; Detonators electric operable also in the percussion mode

Definitions

  • the invention relates to an electromechanical primer, i. a primer with an explosive mixture for optional electrical or mechanical initiation of the explosive mixture, with an outer metal well, an electrically conductive pole piece, a Zündmaschinenmay body of an electrically insulating material with a through hole, on the top of a Zündmaschine is arranged and with a on the Explosivstoffmischung patch abutment, wherein in the bottom of the metal cup a hole is introduced into which the pole piece protrudes and the pole piece is electrically connected to a second pole of the ignition bridge and the first pole of the ignition bridge is electrically coupled to the metal cup.
  • ANZDH primer caps
  • the mechanical ANZDH are simple containers which are filled with an explosive mixture and which optionally contain an anvil in the form of an anvil (in some ANZDH this abutment is located in the cartridge case).
  • anvil in the form of an anvil (in some ANZDH this abutment is located in the cartridge case).
  • To trigger a striker strikes the floor of the ANZDH and presses it quickly, so that the explosive is crushed between the deformed soil and the anvil and its chemical reaction begins.
  • electrical ANZDH In electrical ANZDH electrical energy is converted into heat and when the deflagration temperature reaches the chemical reaction of the explosive material begins. The heat is generated by a simple ohmic resistance (such as a heating wire). The functioning of both classes differ thus clearly. Due to their simplicity, mechanical ANZDH are small enough to be used in small-caliber ammunition. Electrical ANZDH are usually larger than mechanical ANZDH because of the additional isolation effort and the ohmic resistance and are therefore generally not suitable for use in small-caliber ammunition.
  • the invention has the object of developing an electromechanical primer so that it has approximately the dimensions of a classic mechanical primer so that you can use it in small caliber ammunition.
  • the electromechanical primer invention has approximately the dimensions of a classical mechanical firing cap.
  • the pole piece is used as an electrical connection element, as in the prior art, but it also serves as an impact surface for a firing pin.
  • This is made possible on the one hand by the fact that a part of the explosive mixture rests on the support surface of the pole piece and the anvil is guided to above the support surface.
  • the distance counter bearing and pole piece is minimized, resulting in the low height results.
  • the explosive mixture is moved much further down to the bottom of the metal cup. A large area of the height is filled by the counter bearing.
  • the anvil has a tip and engages at a distance the inner circumferential surface of the through hole in Zündmaschineni emotions the tip of the thrust bearing.
  • the Zündmaschineni Arts therefore claimed no additional height, as he does not increase the distance abutment to the support surface.
  • the pole piece consists disc-shaped of two mutually offset in height levels, wherein the first plane forms the support surface for the explosive mixture and the second level, the tip of the anvil offset in height to the first plane surrounds and forms a contact surface for the Zünd stipulatenyes Economics.
  • the pole piece is thus extremely flat without restricting the function. Since the first level projects into the hole in the bottom of the metal cup, the used height of the pole piece is the thickness of the second level.
  • the anvil is an anvil and the tip is a funnel-shaped anvil tip.
  • Anvils are sufficiently low in deformation and are well suited as an abutment.
  • a metallic inner sleeve is used in the metal cup, which presses the ZündGermanmaschineni emotions on the contact surface of the pole piece and the first pole of the ignition bridge electrically coupled to the metal cups.
  • the inner sleeve is angled at its end facing the ZündGermanmaschinenitechnik end by 90 °, so that a flat surface is formed, which presses on the contact surface of the pole piece.
  • the anvil closes with the inner sleeve and is advantageously formed three-winged.
  • the anvil is advantageously formed with outlet openings for the ignition gases.
  • the underside and the through hole of Zündmaschinenunities are metallized and are electrically connected to each other and is disposed on the edge of the top of a metallic edge contact, which is electrically connected to the first pole of the ignition bridge and is the second pole of the ignition bridge connected to the metallization of the through hole.
  • Zündmaschinenyes emotionss are known per se.
  • the electromechanical primer cap for small caliber ammunition according to the invention is preferably used.
  • FIG. 1 shows a sectional view of an inventive electromechanical primer and FIG. 2 a plan view of the ignition bridge carrier body 5 according to FIG. 1 ,
  • the primer (ANZDH) is designed so that the user has free choice as to how he intends to initiate the ANZDH - each ANZDH also offers the possibility of electrical or mechanical initiation.
  • a metal cup 1 is used. At the bottom there is an insulation 2 and a pole piece 3 made of metal, which projects into a hole 4 in the bottom of the well 1. Pole piece 3 and metal cups 1 form the two electrical contacts for the electrical initiation. The pole piece 3 simultaneously forms the impact surface for a firing pin (not shown here) in the mechanical initiation.
  • a Zündmaschinennic 5 is a thin ring of an electrically insulating material on which an ohmic resistance is applied as ignition bridge 9 exists (see below).
  • a metallic inner sleeve 6 holds on the one hand the insulation 2, the pole piece 3 and the Zündeaun uman 5 at the bottom of the metal cup 1 and on the other hand, the inner sleeve 6 makes electrical contact between the metal well 1 and the top of Zündmaschinenany 5.
  • the inner sleeve 6 has a relatively large hole in the bottom and has contact with the Zünd stipulatennic 5 only at its upper edge.
  • the interior of the inner sleeve 6 is filled with an explosive mixture 7.
  • an abutment 8 here an anvil, placed, which closes with the inner sleeve 6 and looks a little beyond.
  • the anvil 8 is shown here as anvil, can also be replaced by a corresponding abutment similar shape in the cartridge case.
  • An important design feature is the elongated shape of the anvil 8, which ensures a small distance between the tip 15 of the thrust bearing 8 and the pole piece 3. This small distance is necessary for a reliable mechanical initiation.
  • the Zündmaschinenitechnik 5 (see also FIG. 2 ): Its base material is non-conductive. The outer surface of the Zündmaschineniibilitiess 5 is free of conductive surface coatings and acts insulating.
  • the bottom surface 12a of the ignition bridge carrier body 5, the inner circumferential surface 12b of the through hole 13 in Zündmaschinenitechnik 5 and the inner 12c and outer part 12d of the upper surface have been made conductive by coating (eg by gilding).
  • an ohmic resistance is applied as ignition bridge 9, preferably as a narrow film of conductive material, which establishes electrical contact between outer part 12d of the upper side of Zünd stipulatenyesibilities 5 and inner part 12c with the through hole 13.
  • ignition bridge 9 preferably as a narrow film of conductive material
  • the thin film at the contact point Since the thickness of the film at the contact point, ie the ignition bridge 9 is very low and the contact is also very narrow, has the thin film has a relatively high electrical resistance compared to the rest of the ANZDH (which, however, is usually only in the single-digit ohm range). If current flows, the film and the explosive 7 located thereon heat above the deflagration temperature and initiation occurs.
  • An essential feature of the invention is that at least part of the explosive mixture 7 rests on a support surface 14 of the polar body 3. This ensures that during the mechanical initiation, the explosive mixture 7 is squeezed between the support surface 14 and the tip 15 of the anvil 8, thereby initiating it.
  • the anvil 8 here the anvil, is usually used in dreierieliger execution (but there are also other versions conceivable), the average in FIG. 1 not symmetrical, because on the left one of the openings was detected by the cut and right one of the wings.
  • the background image shows a parabolic line representing one of the outlet openings 17 between the wings. Through these outlet openings 17 between the wings of the anvil, the igniting gases can escape upwards and reach the cartridge in a propellant powder and ignite this.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Air Bags (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Fuses (AREA)
  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft ein elektromechanisches Anzündhütchen, d.h. ein Anzündhütchen mit einer Explosivstoffmischung zur wahlweisen elektrischen oder mechanischen Initiierung der Explosivstoffmischung, mit einem äußeren Metall-Näpfchen, einem elektrisch leitfähigen Polstück, einem Zündbrückenträgerkörper aus einem elektrisch isolierenden Material mit einer durchgehenden Bohrung, auf dessen Oberseite eine Zündbrücke angeordnet ist und mit einem auf die Explosivstoffmischung aufgesetzten Gegenlager, wobei im Boden des Metall-Näpfchens ein Loch eingebracht ist, in das das Polstück ragt und das Polstück mit einem zweiten Pol der Zündbrücke elektrisch verbunden ist und der erste Pol der Zündbrücke mit dem Metall-Näpfchen elektrisch gekoppelt ist.The invention relates to an electromechanical primer, i. a primer with an explosive mixture for optional electrical or mechanical initiation of the explosive mixture, with an outer metal well, an electrically conductive pole piece, a Zündbrückenträger body of an electrically insulating material with a through hole, on the top of a Zündbrücke is arranged and with a on the Explosivstoffmischung patch abutment, wherein in the bottom of the metal cup a hole is introduced into which the pole piece protrudes and the pole piece is electrically connected to a second pole of the ignition bridge and the first pole of the ignition bridge is electrically coupled to the metal cup.

Stand der Technik:State of the art:

Zur Initiierung von verschiedensten Munitionstypen und auch anderen pyrotechnischen Elementen existieren zwei Klassen von Anzündhütchen (ANZDH): mechanisch ausgelöste und elektrisch ausgelöste. Die mechanischen ANZDH sind einfache Behälter die mit einem Explosivstoffgemisch gefüllt sind und die gegebenenfalls ein Gegenlager in Form eines Ambosses enthalten (bei manchen ANZDH befindet sich dieses Gegenlager in der Patronenhülse). Zur Auslösung schlägt ein Schlagbolzen auf den Boden des ANZDH und drückt diesen schnell ein, so dass der Explosivstoff zwischen dem verformten Boden und dem Gegenlager zerquetscht wird und seine chemische Umsetzung einsetzt.For the initiation of various types of ammunition and other pyrotechnic elements there are two classes of primer caps (ANZDH): mechanically triggered and electrically triggered. The mechanical ANZDH are simple containers which are filled with an explosive mixture and which optionally contain an anvil in the form of an anvil (in some ANZDH this abutment is located in the cartridge case). To trigger a striker strikes the floor of the ANZDH and presses it quickly, so that the explosive is crushed between the deformed soil and the anvil and its chemical reaction begins.

In elektrischen ANZDH wird elektrische Energie in Wärme umgewandelt und bei Erreichen der Verpuffungstemperatur setzt die chemische Reaktion des Explosivstoffes ein. Die Wärme wird durch einen einfachen ohmschen Wiederstand (wie etwa einem Heizdraht) erzeugt. Die Funktionsweise beider Klassen unterscheiden sich somit deutlich. Auf Grund ihrer Einfachheit sind mechanische ANZDH klein genug, um in Kleinkalibermunition eingesetzt werden zu können. Elektrische ANZDH sind wegen des zusätzlichen Isolationsaufwandes und des ohmschen Widerstandes meist größer als mechanische ANZDH und eignen sich deshalb in der Regel nicht für den Einsatz in Kleinkalibermunition.In electrical ANZDH electrical energy is converted into heat and when the deflagration temperature reaches the chemical reaction of the explosive material begins. The heat is generated by a simple ohmic resistance (such as a heating wire). The functioning of both classes differ thus clearly. Due to their simplicity, mechanical ANZDH are small enough to be used in small-caliber ammunition. Electrical ANZDH are usually larger than mechanical ANZDH because of the additional isolation effort and the ohmic resistance and are therefore generally not suitable for use in small-caliber ammunition.

Aus der DE 2 364 272 A1 ist ein gattungsgemäßes elektromechanisches Anzündhütchen bekannt, welches sowohl durch den Aufschlag eines Schlagbolzens mechanisch initiiert werden kann als auch durch Anlegen einer elektrischen Spannung und dem daraus resultierenden Stromfluss. Von Nachteil ist jedoch, dass bei diesem elektromechanischen Anzündhütchen im Prinzip zwei getrennte Anzündhütchen in ein gemeinsames Gehäuse verbaut werden, was das Gesamtsystem sehr groß bzw. sehr lang werden lässt.From the DE 2 364 272 A1 a generic electromechanical primer cap is known, which can be initiated mechanically by the impact of a firing pin as well as by applying an electrical voltage and the resulting current flow. The disadvantage, however, that in this electromechanical primer in principle two separate primer caps are installed in a common housing, which makes the overall system can be very large or very long.

Der Erfindung liegt die Aufgabe zugrunde, ein elektromechanisches Anzündhütchen so weiterzubilden, dass es in etwa die Abmessungen eines klassischen mechanischen Anzündhütchens hat, so dass man es in Kleinkalibermunition einsetzen kann.The invention has the object of developing an electromechanical primer so that it has approximately the dimensions of a classic mechanical primer so that you can use it in small caliber ammunition.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention, this object is solved by the features of claim 1.

Dadurch, dass ein Teil der Explosivstoffmischung auf einer Auflagefläche des Polstücks aufliegt und das Gegenlager bis zur durchgehenden Bohrung des Zündbrückenträgerkörpers oder in die Bohrung ragt oder diese durchragt und bis oberhalb der Auflagefläche geführt ist, hat das erfindungsgemäße elektromechanische Anzündhütchen in etwa die Abmessungen eines klassischen mechanischen Anzündhütchens.Characterized in that a part of the explosive mixture rests on a bearing surface of the pole piece and the anvil protrudes to the through hole of Zündbrückenträgerkörpers or into the hole or this protrudes and is guided above the support surface, the electromechanical primer invention has approximately the dimensions of a classical mechanical firing cap.

Diese Verkürzung der Bauhöhe wird dadurch erreicht, dass das Polstück als elektrisches Anschlusselement verwendet wird, wie beim Stand der Technik, es aber zusätzlich auch als Aufschlagfläche für einen Schlagbolzen dient. Ermöglicht wird dies einerseits dadurch, dass ein Teil der Explosivstoffmischung auf der Auflagefläche des Polstücks aufliegt und das Gegenlager bis oberhalb der Auflagefläche geführt ist. Hierdurch ist der Abstand Gegenlager und Polstück minimiert, woraus die geringe Bauhöhe resultiert. Im Unterschied zum Stand der Technik ist die Explosivstoffmischung viel weiter nach unten hin zum Boden des Metall-Näpfchens verlegt. Ein großer Bereich der Bauhöhe ist vom Gegenlager ausgefüllt.This shortening of the height is achieved in that the pole piece is used as an electrical connection element, as in the prior art, but it also serves as an impact surface for a firing pin. This is made possible on the one hand by the fact that a part of the explosive mixture rests on the support surface of the pole piece and the anvil is guided to above the support surface. As a result, the distance counter bearing and pole piece is minimized, resulting in the low height results. In contrast to the prior art, the explosive mixture is moved much further down to the bottom of the metal cup. A large area of the height is filled by the counter bearing.

In einer bevorzugten Ausgestaltung weist das Gegenlager eine Spitze auf und umgreift mit Abstand die innere Mantelfläche der durchgehenden Bohrung im Zündbrückenträgerkörper die Spitze des Gegenlagers. Der Zündbrückenträgerkörper beansprucht daher keine zusätzliche Bauhöhe, da er den Abstand Gegenlager zur Auflagefläche nicht vergrößert.In a preferred embodiment, the anvil has a tip and engages at a distance the inner circumferential surface of the through hole in Zündbrückenträgerkörper the tip of the thrust bearing. The Zündbrückenträgerkörper therefore claimed no additional height, as he does not increase the distance abutment to the support surface.

Das Polstück besteht scheibenförmig aus zwei zueinander in der Höhe versetzt angeordneten Ebenen, wobei die erste Ebene die Auflagefläche für die Explosivstoffmischung bildet und die zweite Ebene die Spitze des Gegenlagers in der Höhe zur ersten Ebene versetzt umgreift und eine Berührungsfläche für den Zündbrückenträgerkörper bildet. Das Polstück ist dadurch extrem flach gebaut ohne die Funktion einzuschränken. Da die erste Ebene in das Loch im Boden des Metall-Näpfchens ragt, ist die benutzte Bauhöhe des Polstücks die Dicke der zweiten Ebene.The pole piece consists disc-shaped of two mutually offset in height levels, wherein the first plane forms the support surface for the explosive mixture and the second level, the tip of the anvil offset in height to the first plane surrounds and forms a contact surface for the Zündbrückenträgerkörper. The pole piece is thus extremely flat without restricting the function. Since the first level projects into the hole in the bottom of the metal cup, the used height of the pole piece is the thickness of the second level.

Bevorzugt ist das Gegenlager ein Amboss und die Spitze eine trichterförmige Ambossspitze. Ambosse sind hinreichend verformungsarm und eignen sich gut als Gegenlager.Preferably, the anvil is an anvil and the tip is a funnel-shaped anvil tip. Anvils are sufficiently low in deformation and are well suited as an abutment.

Vorteilhaft ist im Metall-Näpfchen eine metallische Innenhülse eingesetzt, die den Zündbrückenträgerkörper auf die Berührungsfläche des Polstücks drückt und den ersten Pol der Zündbrücke elektrisch mit dem Metall-Näpfchen koppelt. Die Innenhülse ist an ihrem zum Zündbrückenträgerkörper gewandten Ende um 90° abgewinkelt, so dass eine ebene Fläche gebildet ist, die auf die Berührungsfläche des Polstücks drückt.Advantageously, a metallic inner sleeve is used in the metal cup, which presses the Zündbrückenträgerkörper on the contact surface of the pole piece and the first pole of the ignition bridge electrically coupled to the metal cups. The inner sleeve is angled at its end facing the Zündbrückenträgerkörper end by 90 °, so that a flat surface is formed, which presses on the contact surface of the pole piece.

Bevorzugt schließt der Amboss mit der Innenhülse ab und ist vorteilhaft dreiflügelig ausgebildet. Außerdem ist der Amboss vorteilhaft mit Austrittsöffnungen für die Anzündgase ausgebildet.Preferably, the anvil closes with the inner sleeve and is advantageously formed three-winged. In addition, the anvil is advantageously formed with outlet openings for the ignition gases.

In einer Ausgestaltung der Erfindung sind die Unterseite und die durchgehende Bohrung des Zündbrückenträgerkörpers metallisiert und sind elektrisch miteinander verbunden und ist auf dem Rand der Oberseite ein metallischer Randkontakt angeordnet, der mit dem ersten Pol der Zündbrücke elektrisch verbunden ist und ist der zweite Pol der Zündbrücke mit der Metallisierung der durchgehenden Bohrung verbunden. Derartige Zündbrückenträgerkörpers sind an sich bekannt.In one embodiment of the invention, the underside and the through hole of Zündbrückenträgerkörpers are metallized and are electrically connected to each other and is disposed on the edge of the top of a metallic edge contact, which is electrically connected to the first pole of the ignition bridge and is the second pole of the ignition bridge connected to the metallization of the through hole. Such Zündbrückenträgerkörpers are known per se.

Bevorzugt wird das erfindungsgemäße elektromechanische Anzündhütchen für Kleinkalibermunition verwendet.The electromechanical primer cap for small caliber ammunition according to the invention is preferably used.

Nachfolgend wird die Erfindung anhand zweier Figuren weiter erläutert.The invention will be further explained with reference to two figures.

Figur 1 zeigt in einer Schnittdarstellung ein erfindungsgemäßes elektromechanisches Anzündhütchen und Figur 2 eine Draufsicht auf den Zündbrückenträgerkörper 5 gemäß Figur 1. FIG. 1 shows a sectional view of an inventive electromechanical primer and FIG. 2 a plan view of the ignition bridge carrier body 5 according to FIG. 1 ,

Das Anzündhütchen (ANZDH) ist so konstruiert, dass der Nutzer die freie Wahl hat, wie er das ANZDH initiieren will - jedes ANZDH bietet parallel die Möglichkeit einer elektrischen oder mechanischen Initiierung.The primer (ANZDH) is designed so that the user has free choice as to how he intends to initiate the ANZDH - each ANZDH also offers the possibility of electrical or mechanical initiation.

Zur Aufnahme aller Komponenten wird ein Metall-Näpfchen 1 verwendet. An dessen Boden befindet sich eine Isolation 2 und ein Polstück 3 aus Metall, welches in ein Loch 4 im Boden des Näpfchens 1 ragt. Polstück 3 und Metall-Näpfchen 1 bilden die beiden elektrischen Kontakte für die elektrische Initiierung. Das Polstück 3 bildet gleichzeitig die Aufschlagfläche für einen Schlagbolzen (hier nicht gezeigt) bei der mechanischen Initiierung. Über dem Polstück 3 befindet sich ein Zündbrückenträgerkörper 5, der als dünner Ring aus einem elektrisch isolierenden Material, auf welchem ein ohmscher Widerstand als Zündbrücke 9 aufgebracht ist, besteht (siehe weiter unten). Eine metallische Innenhülse 6 hält zum einen die Isolation 2, das Polstück 3 und den Zündbrückenträgerkörper 5 am Boden des Metall-Näpfchens 1 fest und zum anderen stellt die Innenhülse 6 einen elektrischen Kontakt zwischen dem Metall-Näpfchen 1 und der Oberseite des Zündbrückenträgerkörper 5 her.To accommodate all components, a metal cup 1 is used. At the bottom there is an insulation 2 and a pole piece 3 made of metal, which projects into a hole 4 in the bottom of the well 1. Pole piece 3 and metal cups 1 form the two electrical contacts for the electrical initiation. The pole piece 3 simultaneously forms the impact surface for a firing pin (not shown here) in the mechanical initiation. About the pole piece 3 is a Zündbrückenträger 5, which is a thin ring of an electrically insulating material on which an ohmic resistance is applied as ignition bridge 9 exists (see below). A metallic inner sleeve 6 holds on the one hand the insulation 2, the pole piece 3 and the Zündbrückenträger 5 at the bottom of the metal cup 1 and on the other hand, the inner sleeve 6 makes electrical contact between the metal well 1 and the top of Zündbrückenträger 5.

Die Innenhülse 6 weist im Boden ein relativ großes Loch auf und hat mit dem Zündbrückenträgerkörper 5 nur an dessen oberen Rand Kontakt. Der Innenraum der Innenhülse 6 ist mit einer Explosivstoffmischung 7 gefüllt. Oben auf diese Explosivstoffmischung 7 ist ein Gegenlager 8, hier ein Amboss, aufgesetzt, der mit der Innenhülse 6 abschließt bzw. ein wenig darüber hinausschaut. Das Gegenlager 8 ist hier als Amboss gezeigt, kann auch durch ein entsprechendes Gegenlager ähnlicher Form in der Patronenhülse ersetzt werden. Wichtiges Konstruktionsmerkmal ist die langgezogene Form des Gegenlagers 8, die einen geringen Abstand zwischen der Spitze 15 des Gegenlagers 8 und dem Polstück 3 gewährleistet. Dieser geringe Abstand ist für eine zuverlässige mechanische Initiierbarkeit notwendig. Für die elektrische Initiierbarkeit von entscheidender Bedeutung ist der Zündbrückenträgerkörper 5 (siehe auch Figur 2): Dessen Grundmaterial ist nichtleitend. Die äußere Mantelfläche des Zündbrückenträgerkörpers 5 ist frei von leitfähigen Oberflächenbeschichtungen und wirkt isolierend. Die Bodenfläche 12a des Zündbrückenträgerkörpers 5, die innere Mantelfläche 12b der durchgehenden Bohrung 13 im Zündbrückenträgerkörper 5 und der innere 12c und äußere Teil 12d der oberen Fläche sind durch Beschichtung leitfähig gemacht worden (z.B. durch vergolden). Auf der Oberseite befindet sich ein ringförmiger Bereich 10 als Isolation (siehe Figur 2). Dieser wird z.B. durch Abtragen der Beschichtung in diesem Gebiet erreicht, so dass das isolierende Grundmaterial wieder hervortritt. An einer Stelle dieser ringförmigen Isolation (siehe Figur 2) wird ein ohmscher Widerstand als Zündbrücke 9, bevorzugt als schmaler Film aus leitfähigem Material aufgebracht, der elektrischen Kontakt zwischen äußerem Teil 12d der Oberseite des Zündbrückenträgerkörpers 5 und innerem Teil 12c mit der durchgehenden Bohrung 13 herstellt. Dadurch kann bei Anlegen einer Spannung an das Metall-Näpfchen 1 und Polstück 3 ein elektrischer Strom fließen und zwar durch das Polstück 3 in die Unterseite des Zündbrückenträgerkörpers 5 über die innere Mantelfläche 12b der durchgehenden Bohrung 13 auf die Oberseite des Zündbrückenträgerkörpers 5 über den schmalen Kontaktstreifen bzw. der Zündbrücke 9 zur äußeren Oberseite d.h. Randkontakt des Zündbrückenträgerkörpers 5 zur Innenhülse 6 und schließlich zum Metall-Näpfchen 1. Da die Dicke des Films an der Kontaktstelle, d.h. der Zündbrücke 9 nur sehr gering ist und der Kontakt auch sehr schmal ist, weist der dünne Film im Vergleich zum restlichen ANZDH einen relativ hohen elektrischen Widerstand auf (der aber dennoch in der Regel nur im einstelligen Ohm-Bereich liegt). Fließt Strom, so erwärmt sich der Film und der darauf liegende Explosivstoff 7 über die Verpuffungstemperatur und es kommt zur Initiierung.The inner sleeve 6 has a relatively large hole in the bottom and has contact with the Zündbrückenträger 5 only at its upper edge. The interior of the inner sleeve 6 is filled with an explosive mixture 7. At the top of this explosive mixture 7 is an abutment 8, here an anvil, placed, which closes with the inner sleeve 6 and looks a little beyond. The anvil 8 is shown here as anvil, can also be replaced by a corresponding abutment similar shape in the cartridge case. An important design feature is the elongated shape of the anvil 8, which ensures a small distance between the tip 15 of the thrust bearing 8 and the pole piece 3. This small distance is necessary for a reliable mechanical initiation. Of crucial importance for the electrical initiation is the Zündbrückenträgerkörper 5 (see also FIG. 2 ): Its base material is non-conductive. The outer surface of the Zündbrückenträgerkörpers 5 is free of conductive surface coatings and acts insulating. The bottom surface 12a of the ignition bridge carrier body 5, the inner circumferential surface 12b of the through hole 13 in Zündbrückenträgerkörper 5 and the inner 12c and outer part 12d of the upper surface have been made conductive by coating (eg by gilding). On the top there is an annular region 10 as insulation (see FIG. 2 ). This is achieved, for example, by removing the coating in this area, so that the insulating base material emerges again. At one point of this annular insulation (see FIG. 2 ), an ohmic resistance is applied as ignition bridge 9, preferably as a narrow film of conductive material, which establishes electrical contact between outer part 12d of the upper side of Zündbrückenträgerkörpers 5 and inner part 12c with the through hole 13. As a result, when a voltage is applied to the metal cup 1 and pole piece 3, an electric current flows through the pole piece 3 into the underside of the ignition bridge carrier body 5 via the inner circumferential surface 12b of the through bore 13 on the upper side of the ignition bridge carrier body 5 via the narrow contact strip or the ignition bridge 9 to the outer top ie edge contact of Zündbrückenträgerkörpers 5 to the inner sleeve 6 and finally to the metal cups 1. Since the thickness of the film at the contact point, ie the ignition bridge 9 is very low and the contact is also very narrow, has the thin film has a relatively high electrical resistance compared to the rest of the ANZDH (which, however, is usually only in the single-digit ohm range). If current flows, the film and the explosive 7 located thereon heat above the deflagration temperature and initiation occurs.

Ein wesentliches Merkmal der Erfindung ist, dass zumindest ein Teil der Explosivstoffmischung 7 auf einer Auflagefläche 14 des Polkörpers 3 aufliegt. Hierdurch ist sichergestellt, dass bei der mechanischen Initiierung die Explosivstoffmischung 7 zwischen der Auflagefläche 14 und der Spitze 15 des Gegenlagers 8 gequetscht wird es dadurch zur Initiierung kommt.An essential feature of the invention is that at least part of the explosive mixture 7 rests on a support surface 14 of the polar body 3. This ensures that during the mechanical initiation, the explosive mixture 7 is squeezed between the support surface 14 and the tip 15 of the anvil 8, thereby initiating it.

Das Gegenlager 8, hier der Amboss, wird in der Regel in dreiflügeliger Ausführung verwendet (es sind aber auch andere Versionen denkbar), die im Schnitt in Figur 1 nicht symmetrisch erscheint, da links eine der Öffnungen vom Schnitt erfasst wurde und rechts einer der Flügel. Im Bildhintergrund ist eine parabelförmige Linie zu sehen, die eine der Austrittsöffnungen 17 zwischen den Flügeln darstellt. Durch diese Austrittsöffnungen 17 zwischen den Flügeln des Ambosses können die Anzündgase nach oben entweichen und in einer Patrone zum Treibladungspulver gelangen und dieses anzünden.The anvil 8, here the anvil, is usually used in dreiflügeliger execution (but there are also other versions conceivable), the average in FIG. 1 not symmetrical, because on the left one of the openings was detected by the cut and right one of the wings. The background image shows a parabolic line representing one of the outlet openings 17 between the wings. Through these outlet openings 17 between the wings of the anvil, the igniting gases can escape upwards and reach the cartridge in a propellant powder and ignite this.

Claims (8)

  1. Electromechanical primer cap, comprising an explosive mixture (7) for selective electrical or mechanical initiation of the explosive mixture (7), an outer metal cup (1), an electrically conductive pole piece (3), a firing bridge support body (5) made of an electrically insulating material having a through bore (13), on the upper side of which a firing bridge (9) is arranged, and a counter bearing (8) which is placed onto the explosive mixture (7), wherein a hole (4) is constructed in the bottom of the metal cup (1), in the insight of which the pole piece (3) protrudes, and wherein the pole piece (3) is electrically connected with a second pole in the firing bridge (9), and wherein the first pole of the firing bridge (9) is electrically connected with the metal cup (1), characterized in that one part of the explosive mixture (7) lies on a supporting surface (14) of the pole piece (3), and that the counter bearing (8) protrudes up to the through bore (13) of the firing bridge support body (5) or into the bore (13), or protrudes through the bore (13) and is guided to just above the supporting surface (14).
  2. The primer cap according to claim 1, characterized in that the counter bearing (8) comprises a point (15), and that the inner shell surface (12b) of the through bore (13) in the firing bridge support body (5) encompasses the point (15) of the counter bearing (8) with a space.
  3. The primer cap according to claim 1 or 2, characterized in that the pole piece (3) consists disk shaped of two planes (16a, 16b) arranged offset with respect to each other in the height, wherein the first plane (16a) forms the supporting surface (14) for the explosive mixture (7), and wherein the second plane (16b) encompasses the point (15) of the counter bearing (8) offset with respect to the first plane (16a) in the height and forms a contact surface for the firing bridge support body (5).
  4. The primer cap according to claim 2 of 3, characterized in that the counter bearing (8) is an anvil, and that the point (15) is a funnel-shaped anvil point.
  5. The primer cap according to claim 3 or 4, characterized in that a metallic inner shell (6) is inserted into the metal cup (1), which inner shell (6) pushes the firing bridge support body (5) onto the contact surface of the pole piece (3) and couples the first pole of the firing bridge (9) electrically with the metal cup (1).
  6. The primer cap according to claim 4 or 5, characterized in that the anvil closes with the inner shell (6) and is preferably formed in a three wing manner with venting openings (17) for the ignition gases.
  7. The primer cap according to one of the claims 1 to 6, characterized in that the underside (12a) and the through bore (13) of the firing bridge support body (5) are metallized and electrically connected to each other, and wherein a metallic edge contact (12d) is arranged on the edge of the upper side which is electrically connected with the first pole of the firing bridge (9), and wherein the second pole of the firing bridge (9) is connected with the metallizing of the through bore (13).
  8. Use of a primer cap according to one of the claims 1 to 7 for small caliber ammunition.
EP14749785.3A 2013-08-05 2014-08-05 Electromechanical percussion cap Active EP3030858B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RS20181014A RS57713B1 (en) 2013-08-05 2014-08-05 Electromechanical percussion cap
SI201430863T SI3030858T1 (en) 2013-08-05 2014-08-05 Electromechanical percussion cap
PL14749785T PL3030858T3 (en) 2013-08-05 2014-08-05 Electromechanical percussion cap
HRP20181390TT HRP20181390T1 (en) 2013-08-05 2018-08-29 Electromechanical percussion cap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013012911 2013-08-05
PCT/EP2014/066818 WO2015018829A1 (en) 2013-08-05 2014-08-05 Electromechanical percussion cap

Publications (2)

Publication Number Publication Date
EP3030858A1 EP3030858A1 (en) 2016-06-15
EP3030858B1 true EP3030858B1 (en) 2018-05-30

Family

ID=51300735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14749785.3A Active EP3030858B1 (en) 2013-08-05 2014-08-05 Electromechanical percussion cap

Country Status (15)

Country Link
US (1) US10215545B2 (en)
EP (1) EP3030858B1 (en)
KR (1) KR101921171B1 (en)
BR (1) BR112016002537B1 (en)
CA (1) CA2920450C (en)
DE (1) DE102014011376A1 (en)
DK (1) DK3030858T3 (en)
ES (1) ES2685615T3 (en)
HR (1) HRP20181390T1 (en)
HU (1) HUE039944T2 (en)
LT (1) LT3030858T (en)
PL (1) PL3030858T3 (en)
RS (1) RS57713B1 (en)
SI (1) SI3030858T1 (en)
WO (1) WO2015018829A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190128656A1 (en) * 2017-10-30 2019-05-02 Spectre Enterprises, Inc. Primer Cup for a Primer Having Deposited Ignitable Material
DE102019106357B4 (en) * 2019-03-13 2022-09-22 Ruag Ammotec Gmbh primer caps
DE102021116399A1 (en) 2021-06-24 2022-12-29 Ruag Ammotec Gmbh Injection cartridge for a needleless injection system

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BE593464A (en) * 1959-08-22 1960-11-14 Dynamit Nobel Ag Primer for electrical and mechanical priming.
US3363563A (en) * 1964-11-25 1968-01-16 Remington Arms Co Inc Primer having closed flash hole means
DE1771889A1 (en) * 1968-07-25 1972-01-27 Dynamit Nobel Ag Electric ignition element
US3577923A (en) * 1969-01-16 1971-05-11 Us Army Percussion-electric primer and radiation shield
FR2051694B1 (en) * 1969-07-11 1973-02-02 Dynamit Nobel Ag
US3768413A (en) * 1972-03-10 1973-10-30 Olin Corp Electric and impact primer
DE2232049C2 (en) * 1972-06-30 1984-03-01 Jakobs, Ferdinand, 6601 Quierschied Combined primer for electric and impact ignition
DE2245308C3 (en) * 1972-09-15 1981-05-07 Dynamit Nobel Ag, 5210 Troisdorf Electric bridge detonator
DE2364272A1 (en) * 1973-12-22 1975-06-26 Dynamit Nobel Ag Detonator or firing cap for munitions - can be fired electrically or mechanically using mixtures sensitive to current or friction
DE2443793C2 (en) * 1974-09-13 1986-05-07 Dynamit Nobel Ag, 5210 Troisdorf Combined primer cap
SE431681B (en) * 1977-04-19 1984-02-20 Bofors Ab ELTENDDON
US4329924A (en) * 1979-09-11 1982-05-18 Etat Francais Represente Par Le Delegue General Pour L'armement Electric primer with conductive composition
DE3032712A1 (en) * 1980-08-30 1982-04-08 Dynamit Nobel Ag, 5210 Troisdorf DETECTOR WITH AMPLIFIER CHARGE
US4386567A (en) * 1981-07-28 1983-06-07 The United States Of America As Represented By The Secretary Of The Army Combination percussion-electric primer
IL85527A (en) * 1988-02-24 1991-05-12 Israel Defence Electric igniter assembly
US6598532B2 (en) * 2001-08-14 2003-07-29 Donald G. Gerard Electric circuit for an electrically dischargeable primer
WO2015018828A1 (en) * 2013-08-05 2015-02-12 Ruag Ammotec Gmbh Electrical igniting cap for small caliber munition

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Also Published As

Publication number Publication date
EP3030858A1 (en) 2016-06-15
DK3030858T3 (en) 2018-09-03
PL3030858T3 (en) 2019-02-28
CA2920450A1 (en) 2015-02-12
US20160169651A1 (en) 2016-06-16
KR101921171B1 (en) 2018-11-22
RS57713B1 (en) 2018-12-31
BR112016002537A2 (en) 2017-08-01
ES2685615T3 (en) 2018-10-10
HUE039944T2 (en) 2019-02-28
CA2920450C (en) 2021-02-23
KR20160078952A (en) 2016-07-05
DE102014011376A1 (en) 2015-02-05
SI3030858T1 (en) 2018-12-31
BR112016002537B1 (en) 2020-12-22
WO2015018829A1 (en) 2015-02-12
US10215545B2 (en) 2019-02-26
LT3030858T (en) 2018-12-10
HRP20181390T1 (en) 2018-12-14

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