EP0112526B1 - Firing device for cartridges, especially for hand fire-arms - Google Patents

Firing device for cartridges, especially for hand fire-arms Download PDF

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Publication number
EP0112526B1
EP0112526B1 EP83112333A EP83112333A EP0112526B1 EP 0112526 B1 EP0112526 B1 EP 0112526B1 EP 83112333 A EP83112333 A EP 83112333A EP 83112333 A EP83112333 A EP 83112333A EP 0112526 B1 EP0112526 B1 EP 0112526B1
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EP
European Patent Office
Prior art keywords
detonation
detonator
ignition
transfer member
housing
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
Application number
EP83112333A
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German (de)
French (fr)
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EP0112526A3 (en
EP0112526A2 (en
Inventor
Arndt Kriegeskorte
Klaus Pfeiffer
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KRIEGESKORTE AND CO GmbH
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KRIEGESKORTE AND CO GmbH
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Priority to AT83112333T priority Critical patent/ATE25767T1/en
Publication of EP0112526A2 publication Critical patent/EP0112526A2/en
Publication of EP0112526A3 publication Critical patent/EP0112526A3/en
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Publication of EP0112526B1 publication Critical patent/EP0112526B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms
    • F41A19/69—Electric contacts or switches peculiar thereto
    • F41A19/70—Electric firing pins; Mountings therefor

Definitions

  • the invention relates to an ignition device which has the features of the preamble of claim 1.
  • Electrical ignition devices of this type are known from EP-A2-0010509 and have the advantage over the conventional ignition devices with a firing pin that they trigger no or at least no significant vibrations during the ignition, as are unavoidable when the firing pin strikes the igniter, which means a much higher accuracy than a mechanical ignition device can be achieved.
  • these known ignition devices have the disadvantage that they can only be used in connection with special ammunition, but not for the usual ammunition used in weapons with mechanical impact. This applies not only to high-voltage electrical ignition devices, but also to such ignition devices that operate at a relatively low voltage. This is due to the fact that the ignition takes place by heating a resistance element provided on the igniter, which touches the propellant charge in the cartridge.
  • the invention has for its object to provide an ignition device for cartridges, in particular handgun cartridges, which combines the advantages of the known mechanical ignition devices with those of the known electrical ignition devices, that is to avoid mechanical vibrations triggered by the ignition process as completely as possible, but still Use of the usual ammunition designed for firing a firing pin is permitted.
  • This object is achieved by an ignition device with the features of claim 1.
  • the switch located in the ignition circuit is also advantageous in the solution according to the invention to design the switch located in the ignition circuit as a semiconductor switch, preferably as a thyristor.
  • the ignition current transmission body is designed as a rod with an ignition tip contacting the base of the igniter, the diameter of which is between 0.5 mm and 1.5 mm. A diameter of 1.3 mm has proven to be particularly advantageous in a number of applications.
  • Such an adaptation of the size of the surface of the ignition current transmission body contacting the housing base of the igniter allows optimum conditions to be achieved in the area of the contact resistance, which is decisive for the heat loss occurring here, the size of which in turn determines the heating of the ignition means.
  • the selection of the ignition voltage is also important, which must be such that the ignition means is heated as quickly as possible, but the base of the igniter does not burn out.
  • the ignition current transmission body should consist of a tough and erosion-resistant material, at least in the end section contacting the base of the igniter, in order to achieve a sufficiently long service life and thus a sufficiently large number of shots.
  • Materials that meet these requirements are, for example, pure iron, steel, tungsten, tantalum or copper-tungsten.
  • the contact pressure with which the ignition current transmission body presses against the base of the igniter is between 2 g and 20 g.
  • the size of the optimal pressure depends not only on the size of the contact area, but also on the material from which the ignition tip is made of the ignition current transmission body.
  • the heating of the ignition tip and the housing base of the igniter usually does not prevent material migration and the material loss of the ignition tip must be kept low for the sake of the longest possible service life, it is advisable to choose the polarity of the ignition current so that a Material transport from the usually made of brass detonator housing to the ignition tip follows. This deposit of material on the ignition tip is not a nuisance, since it is usually torn off again from the ignition tip when the cartridge case is ejected, because the deposited material is normally welded to the base of the igniter.
  • An electrical ignition device for the cartridge of the usual type located in the cartridge chamber 1 of a rifle that is to say with a cartridge case 2 made of metal and a primer or detonator 3, whose housing 4 is also made of metal, preferably like the cartridge case 2 made of brass, in an electrically conductive manner Connected to the cartridge case 2, has a battery 5 as the ignition current source, which has a voltage of 36 volts in the exemplary embodiment.
  • the free end section of the ignition tip 6 ' is guided in a longitudinally displaceable manner in a sleeve-shaped insulator 7 which is inserted into a bore of the push base 8 which is concentric with the ignition tip and is made of ceramic, ie a very hard material.
  • a part of the butt plate 8 protrudes slightly beyond the end face of the insulator 7 facing the cartridge case.
  • the larger diameter section of the current transmission body 6 is surrounded by a helical spring 9, which is supported on the one hand on an annular collar of this section and on the other hand on a tubular guide body 20 surrounding this section.
  • the spring 9 is dimensioned such that the ignition tip 6 'is pressed against the bottom of the housing 4 of the igniter 3 with a force of approximately 10 g.
  • the ignition current transmission body 6, the cartridge chamber 1 and a thyristor 11 are in series in the part of the ignition circuit connected to the battery 5. Also located in this path of the ignition circuit is the cartridge, the sleeve of which is connected to the cartridge chamber in an electrically conductive manner, and the igniter housing 4, which is electrically connected to the sleeve, is contacted by the ignition pin 6 '.
  • Parallel to the current path formed from the ignition current transmission body 6, the cartridge chamber 1 and the thyristor 11 are an ignition current source, designated as a whole by 12, and an unloading device consisting of the series connection of a resistor 13 and a manually operable switch 14, by means of which the ignition current source 12 can be discharged . As shown in FIG.
  • the ignition current source 12 can consist of a plurality of capacitors C1, C2 and C3 connected in parallel, each of which can be connected to the battery 5 via a manually operated switch S1 or S2 or S3.
  • the capacitor or the capacitors of the ignition current source 12 are high-quality electrolytic capacitors in order to achieve a pulse-like discharge with a high current intensity, which can be in the range of 30 A.
  • An ignition device 15 is connected to the battery 5 and can be activated by means of a manually operated opening switch 16.
  • the output of the ignition device 15 is connected to the ignition electrode of the thyristor 11 via a manually operated safety switch 17. If the safety switch 17 is closed, actuation of the opening switch 16 leads to the thyristor 11 becoming conductive and, if there is a cartridge in the cartridge chamber, the ignition current leads to the ignition of this cartridge in that the contact resistance between the ignition tip 6 'and So high heat development occurs at the bottom of the igniter housing 4 that the ignition means located in the igniter housing is heated at least up to its ignition temperature.
  • the thyristor 11 is placed in the ignition circuit such that the flowing ignition current causes the brass evaporating at the bottom of the igniter housing 4 to be transported to the ignition tip 6 '.
  • an extinguishing device 18 is provided, the output of which is connected to the ignition electrode of the thyristor 11, while the input is connected to the battery 5. This quenching device 18 leads the thyristor 11 back into the non-conductive state.
  • the entire ignition device is switched on and off by means of a manually operable switch 19 in one of the two connecting lines leading to the battery 5.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

Die Erfindung betrifft eine Zündeinrichtung, welche die Merkmale des Oberbegriffs des Anspruches 1 aufweist.The invention relates to an ignition device which has the features of the preamble of claim 1.

Elektrische Zündeinrichtungen dieser Art sind durch die EP-A2-0010509 bekannt und haben gegenüber den üblichen Zündeinrichtungen mit einem Schlagbolzen den Vorteil, bei der Zündung keine oder zumindest keine nennenswerten Schwingungen, wie sie beim Aufprall des Schlagbolzens auf den Zünder unvermeidlich sind, auszulösen, wodurch sich eine wesentlich höhere Treffgenauigkeit als bei einer mechanischen Zündeinrichtung erzielen läßt. Diese bekannten Zündeinrichtungen sind jedoch mit dem Nachteil behaftet, daß sie nur in Verbindung mit Spezialmunition verwendet werden können, nicht aber für die übliche Munition, wie sie in Waffen mit mechanischer Schlagzündung benutzt wird. Dies gilt nicht nur für elektrische Hochpannungs-Zündeinrichtungen, sondern auch für solche Zündeinrichtungen, die mit einer relativ niedrigen Spannung arbeiten. Zurückzuführen ist dies darauf, daß die Zündung durch die Erhitzung eines am Zünder vorgesehenen Widerstandselementes erfolgt, das die Treibladung in der Patrone berührt. Eine Spezialmunition ist auch dann erforderlich, wenn der Zündstrom von einem elektrisch isoliert im Gehäuseboden des Zünders angeordneten Kontaktelement durch das Zündmittel hindurch zum Zündergehäuse oder in umgekehrter Richtung geleitet wird, weil bei der üblichen Munition für die Zündung durch einen Schlagbolzen der Zünder kein elektrisch leitendes Zündmittel enthält.Electrical ignition devices of this type are known from EP-A2-0010509 and have the advantage over the conventional ignition devices with a firing pin that they trigger no or at least no significant vibrations during the ignition, as are unavoidable when the firing pin strikes the igniter, which means a much higher accuracy than a mechanical ignition device can be achieved. However, these known ignition devices have the disadvantage that they can only be used in connection with special ammunition, but not for the usual ammunition used in weapons with mechanical impact. This applies not only to high-voltage electrical ignition devices, but also to such ignition devices that operate at a relatively low voltage. This is due to the fact that the ignition takes place by heating a resistance element provided on the igniter, which touches the propellant charge in the cartridge. Special ammunition is also required if the ignition current is conducted from a contact element, which is arranged in an electrically insulated manner in the base of the detonator, through the detonator to the detonator housing or in the opposite direction, because in conventional munitions for firing by a firing pin the detonator does not have an electrically conductive detonator contains.

Es ist ferner bekannt (FR-A-525 682), mit zwei im Abstand nebeneinander liegenden Elektroden den metallischen Boden eine Granate oder Patrone zu kontaktieren und mittels des über die Elektroden fließenden Stromes zu verdampfen. Hierbei ist ebenfalls nur eine Spezialmunition verwendbar, was auch für eine Weiterentwicklung (FR-A-1 494 769) dieses Zündsystems gilt, bei welcher der mittels zweier koaxial angeordneter Elektroden kontaktierbare Patronenboden aus einer Schicht mit hohem elektrischem Widerstand besteht.It is also known (FR-A-525 682) to contact the metallic base of a grenade or cartridge with two electrodes lying next to one another at a distance and to evaporate them by means of the current flowing over the electrodes. Here, too, only special ammunition can be used, which also applies to a further development (FR-A-1 494 769) of this ignition system, in which the cartridge base, which can be contacted by means of two coaxially arranged electrodes, consists of a layer with high electrical resistance.

Der Erfindung liegt die Aufgabe zugrunde, eine Zündeinrichtung für Patronen, insbesondere Handfeuerwaffen-Patronen, zu schaffen, welche die Vorteile der bekannten mechanischen Zündeinrichtungen mit denjenigen der bekannten elektrischen Zündeinrichtungen vereinigt, also mechanische, durch den Zündvorgang ausgelöste Schwingungen möglichst vollständig vermeidet, aber dennoch die Verwendung der für eine Schlagbolzen-Zündung ausgebildeten, üblichen Munition erlaubt. Diese Aufgabe löst eine Zündeinrichtung mit den Merkmalen des Anspruches 1.The invention has for its object to provide an ignition device for cartridges, in particular handgun cartridges, which combines the advantages of the known mechanical ignition devices with those of the known electrical ignition devices, that is to avoid mechanical vibrations triggered by the ignition process as completely as possible, but still Use of the usual ammunition designed for firing a firing pin is permitted. This object is achieved by an ignition device with the features of claim 1.

Da bei der erfindungsgemäßen Zündung auf den Zünder kein Zündschlag ausgeübt wird, vielmehr die Zündung elektrisch erfogt, löst der Zündvorgang keine die Treffgenauigkeit herabsetzende Bewegungen oder Schwingungen der Waffe aus. Andererseits sind dadurch, daß die Zündung durch eine Erhitzung des Zündmittels infolge der am Übergangswiderstand zwischen dem Gehäuseboden des Zünders und dem Zündstromübertragungskörper erfolgt, Patronen üblicher Bauweise mit Zündern für eine Schlagzündung ohne Einschränkung verwendbar.Since no ignition shock is exerted on the detonator in the ignition according to the invention, rather the ignition is performed electrically, the ignition process does not trigger any movements or vibrations of the weapon which reduce accuracy. On the other hand, because the ignition takes place by heating the ignition means as a result of the contact resistance between the housing base of the igniter and the ignition current transmission body, cartridges of conventional design with igniters can be used for percussion ignition without restriction.

Wegen der relativ großen Stromstärke des Zündstromes ist es auch bei der erfindungsgemäßen Lösung vorteilhaft, den im Zündstromkreis liegenden Schalter als Halbleiterschalter, vorzugsweise als Thyristor, auszubilden.Because of the relatively large current strength of the ignition current, it is also advantageous in the solution according to the invention to design the switch located in the ignition circuit as a semiconductor switch, preferably as a thyristor.

Um die erforderliche Zündtemperatur mit einem möglichst geringen Zündstrom zu erreichen, ist bei einer bevorzugten Ausführungsform der Zündstromübertragungskörper als Stab mit einer den Gehäuseboden des Zünders kontaktierenden Zündspitze ausgebildet, deren Durchmesser zwischen 0,5 mm und 1,5 mm liegt. Als besonders vorteilhaft hat sich in einer Reihe von Anwendungsfällen ein Durchmesser von 1,3 mm erwiesen. Durch eine derartige Anpassung der Größe des.den Gehäuseboden des Zünders kontaktierenden Fläche des Zündstromübertragungskörpers lassen sich optimale Verhältnisse im Bereich des Übergangswiderstandes erzielen, der maßgebend ist für die hier auftretende Verlustwärme, deren Größe wiederum die Erhitzung des Zündmittels bestimmt. Daneben ist aber auch die Wahl der Zündspannung von Bedeutung, die so getroffen werden muß, daß zwar die Erhitzung des Zündmittels möglichst rasch erfolgt, der Gehäuseboden des Zünders aber nicht durchbrennt.In order to achieve the required ignition temperature with the lowest possible ignition current, in a preferred embodiment the ignition current transmission body is designed as a rod with an ignition tip contacting the base of the igniter, the diameter of which is between 0.5 mm and 1.5 mm. A diameter of 1.3 mm has proven to be particularly advantageous in a number of applications. Such an adaptation of the size of the surface of the ignition current transmission body contacting the housing base of the igniter allows optimum conditions to be achieved in the area of the contact resistance, which is decisive for the heat loss occurring here, the size of which in turn determines the heating of the ignition means. In addition, the selection of the ignition voltage is also important, which must be such that the ignition means is heated as quickly as possible, but the base of the igniter does not burn out.

Der Zündstromübertragungskörper sollte wenigstens in dem den Gehäuseboden des Zünders kontaktierenden Endabschnitt aus einem zähen und abbrandfesten Material bestehen, um eine ausreichend hohe Lebensdauer und damit eine genügend große Schußzahl zu erreichen. Materialien, welche diesen Anforderungen genügen, sind beispielsweise Reineisen, Stahl, Wolfram, Tantal oder Kupfer-Wolfram.The ignition current transmission body should consist of a tough and erosion-resistant material, at least in the end section contacting the base of the igniter, in order to achieve a sufficiently long service life and thus a sufficiently large number of shots. Materials that meet these requirements are, for example, pure iron, steel, tungsten, tantalum or copper-tungsten.

Bei einer bevorzugten Ausführungsform liegt der Anpreßdruck, mit dem der Zündstromübertragungskörper gegen den Gehäuseboden des Zünders drückt, zwischen 2 g und 20 g die Größe des optimalen Druckes hängt nicht nur von der Größe der Kontaktfläche, sondern auch von dem Material ab, aus dem die Zündspitze des Zündstromübertragungskörpers besteht.In a preferred embodiment, the contact pressure with which the ignition current transmission body presses against the base of the igniter is between 2 g and 20 g. The size of the optimal pressure depends not only on the size of the contact area, but also on the material from which the ignition tip is made of the ignition current transmission body.

Da sich bei der Erhitzung der Zündspitze und des Gehäusebodens des Zünders in der Regel eine Materialwanderung nicht vermeiden läßt und der Materialverlust der Zündspitze aus Gründen einer möglichst hohen Lebensdauer gering gehalten werden muß, ist es zweckmäßig, die Polarität des Zündstromes so zu wählen, daß ein Materialtransport von dem üblicherweise aus Messing bestehenden Zündergehäuse zur Zündspitze erfolgt. Diese Materialablagerung an der Zündspitze ist nich störend, da sie üblicherweise wieder von der Zündspitze abgerisen wird, wenn die Patronenhülse ausgeworfen wird, weil das abgelagerte Material normalerweise mit dem Gehäuseboden des Zünders verschweißt ist.Since the heating of the ignition tip and the housing base of the igniter usually does not prevent material migration and the material loss of the ignition tip must be kept low for the sake of the longest possible service life, it is advisable to choose the polarity of the ignition current so that a Material transport from the usually made of brass detonator housing to the ignition tip follows. This deposit of material on the ignition tip is not a nuisance, since it is usually torn off again from the ignition tip when the cartridge case is ejected, because the deposited material is normally welded to the base of the igniter.

Im Hinblick auf die Erzielung einer hohen Lebensdauer ist es ferner vorteilhaft, für den im Stoßboden der Waffe eingesetzten, den Zündstromübertragungskörper gegenüber den metallischen Teilen des Stoßbodens isolierenden Isolator ein sehr hartes Material zu verwenden. Bei einer bevorzugten Ausführungsform besteht deshalb dieser Isolator aus Keramik oder Korund. Im folgenden ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels im einzelnen erläutert. Es zeigen :

  • Figur 1 ein Blockschaltbild des Ausführungsbeispiels,
  • Figur 2 einen schematisch dargestellten Längsschnitt im Bereich des Stopbodens und die unvollständig dargestellte Ansicht einer am Stoßboden anliegenden Patrone.
With a view to achieving a long service life, it is also advantageous to use a very hard material for the insulator used in the butt plate of the weapon and isolating the ignition current transmission body from the metallic parts of the butt plate. In a preferred embodiment, this insulator is therefore made of ceramic or corundum. The invention is explained in detail below using an exemplary embodiment shown in the drawing. Show it :
  • FIG. 1 shows a block diagram of the exemplary embodiment,
  • Figure 2 is a schematically illustrated longitudinal section in the area of the stop floor and the incomplete view of a cartridge lying on the butt plate.

Eine elektrische Zündeinrichtung für die sich im Patronenlager 1 eines Gewehres befindenden Patrone üblicher Bauart, also mit einer aus Metall bestehenden Patronenhülse 2 und einem Zündhütchen bzw. Zünder 3, dessen ebenfalls aus Metall, vorzugsweise wie die Patronenhülse 2 aus Messing bestehendes Gehäuse 4 in elektrisch leitender Verbindung mit der Patronenhülse 2 steht, weist als Zündstromquelle eine Batterie 5 auf, die im Ausführungsbeispiel eine Spannung von 36 Volt hat.An electrical ignition device for the cartridge of the usual type located in the cartridge chamber 1 of a rifle, that is to say with a cartridge case 2 made of metal and a primer or detonator 3, whose housing 4 is also made of metal, preferably like the cartridge case 2 made of brass, in an electrically conductive manner Connected to the cartridge case 2, has a battery 5 as the ignition current source, which has a voltage of 36 volts in the exemplary embodiment.

Statt des bei einer mechanischen Zündeinrichtung vorhandenen Schlagbolzens ist ein wie ein Schlagbolzen längsverschiebbar geführter, stabförmiger Zündstromübertragungskörper 6 vorgesehen, dessen gegen die Patronenhülse 2 weisender Endabschnitt als eine im Durchmesser kleinere, ebenfalls zylindrische Zündspitze 6' ausgebildet ist. Wie Fig. 2 zeigt, ist der freie Endabschnitt der Zündspitze 6' in einem hülsenförmigen Isolator 7 längsverschiebbar geführt, der in eine zur Zündspitze konzentrische Bohrung des Stoßbodens 8 eingesetzt ist und aus Keramik, also einem sehr harten Material, besteht. Ein Teil des Stoßbodens 8 steht geringfügig über die der Patronenhülse zugekehrte Stirnfläche des Isolators 7 über. Den im Durchmesser größeren Abschnitt des Stromübertragungskörpers 6 umgibt eine Schraubenfeder 9, die einerseits an einem Ringbund dieses Abschnitts und andererseits an einem diesen Abschnitt rohrförmig umgebenden Führungskörper 20 abgestützt ist. Die Feder 9 ist so bemessen, daß die Zündspitze 6' mit einer Kraft von etwa 10 g an den Boden des Gehäuses 4 des Zünders 3 angedrückt wird.Instead of the firing pin present in a mechanical ignition device, a rod-shaped ignition current transmission body 6, which is longitudinally displaceably guided like a firing pin, is provided, the end section of which points against the cartridge sleeve 2 is designed as a smaller, likewise cylindrical firing tip 6 '. As shown in FIG. 2, the free end section of the ignition tip 6 'is guided in a longitudinally displaceable manner in a sleeve-shaped insulator 7 which is inserted into a bore of the push base 8 which is concentric with the ignition tip and is made of ceramic, ie a very hard material. A part of the butt plate 8 protrudes slightly beyond the end face of the insulator 7 facing the cartridge case. The larger diameter section of the current transmission body 6 is surrounded by a helical spring 9, which is supported on the one hand on an annular collar of this section and on the other hand on a tubular guide body 20 surrounding this section. The spring 9 is dimensioned such that the ignition tip 6 'is pressed against the bottom of the housing 4 of the igniter 3 with a force of approximately 10 g.

Wie Fig. 1 zeigt, liegen in dem an die Batterie 5 angeschlossenen Teil des Zündstromkreises der Zündstromübertragungskörper 6, das Patronenlager 1 sowie ein Thyristor 11 in Reihe. In diesem Pfad des Zündstromkreises liegt ferner die Patrone, deren Hülse elektrisch leitend mit dem Patronenlager in Verbindung steht, und deren mit der Hülse elektrisch leitend verbundenes Zündergehäuse 4 vom Zündstift 6' kontaktiert wird. Parallel zu dem aus dem Zündstromübertragungskörper 6, dem Patronenlager 1 und dem Thyristor 11 gebildeten Strompfad liegen eine als Ganzes mit 12 bezeichnete Zündstromquelle sowie eine aus der Reihenschaltung eines Widerstandes 13 und eines manuell betätigbaren Schalters 14 bestehende Entladevorrichtung, mittels deren die Zündstromquelle 12 entladen werden kann. Die Zündstromquelle 12 kann, wie in Fig. 1 dargestellt, aus mehreren parallel geschalteten Kondensatoren C1, C2 und C3 bestehen, die über je einen manuell zu betätigenden Schalter S1 bzw. S2 bzw. S3 an die Batterie 5 angeschlossen werden können. Bei dem Kondensator oder den Kondensatoren der Zündstromquelle 12 handelt es sich um hochwertige Elektrolyt-Kondensatoren, um eine impulsartige Entladung mit hoher Stromstärke, die im Bereich von 30 A liegen kann, zu erzielen.As shown in FIG. 1, the ignition current transmission body 6, the cartridge chamber 1 and a thyristor 11 are in series in the part of the ignition circuit connected to the battery 5. Also located in this path of the ignition circuit is the cartridge, the sleeve of which is connected to the cartridge chamber in an electrically conductive manner, and the igniter housing 4, which is electrically connected to the sleeve, is contacted by the ignition pin 6 '. Parallel to the current path formed from the ignition current transmission body 6, the cartridge chamber 1 and the thyristor 11 are an ignition current source, designated as a whole by 12, and an unloading device consisting of the series connection of a resistor 13 and a manually operable switch 14, by means of which the ignition current source 12 can be discharged . As shown in FIG. 1, the ignition current source 12 can consist of a plurality of capacitors C1, C2 and C3 connected in parallel, each of which can be connected to the battery 5 via a manually operated switch S1 or S2 or S3. The capacitor or the capacitors of the ignition current source 12 are high-quality electrolytic capacitors in order to achieve a pulse-like discharge with a high current intensity, which can be in the range of 30 A.

An die Batterie 5 ist eine Zündeinrichtung 15 angeschlossen, die mittels eines manuell betätigbaren Öffner-Schalters 16 wirksam gemacht werden kann. Der Ausgang der Zündeinrichtung 15 ist über einen manuell betätigbaren Sicherheitsschalter 17 mit der Zündelektrode des Thyristors 11 verbunden. Ist der Sicherheitsschalter 17 geschlossen, führt eine Betätigung des Öffner-Schalters 16 dazu, daß der Thyristor 11 leitend wird und, sofern sich im Patronenlager eine Patrone befindet, der Zündstrom zur Zündung dieser Patrone dadurch führt, daß am Übergangswiderstand zwischen der Zündspitze 6' und dem Boden des Zündergehäuses 4 eine so hohe Wärmeentwicklung auftritt, daß das im Zündergehäuse sich befindende Zündmittel zumindest bis zu seiner Zündtemperatur erhitzt wird. Der Thyristor 11 ist so in den Zündstromkreis gelegt, daß der fließende Zündstrom einen Transport des am Boden des Zündergehäuses 4 verdampfenden Messings zur Zündspitze 6' bewirkt.An ignition device 15 is connected to the battery 5 and can be activated by means of a manually operated opening switch 16. The output of the ignition device 15 is connected to the ignition electrode of the thyristor 11 via a manually operated safety switch 17. If the safety switch 17 is closed, actuation of the opening switch 16 leads to the thyristor 11 becoming conductive and, if there is a cartridge in the cartridge chamber, the ignition current leads to the ignition of this cartridge in that the contact resistance between the ignition tip 6 'and So high heat development occurs at the bottom of the igniter housing 4 that the ignition means located in the igniter housing is heated at least up to its ignition temperature. The thyristor 11 is placed in the ignition circuit such that the flowing ignition current causes the brass evaporating at the bottom of the igniter housing 4 to be transported to the ignition tip 6 '.

Zur Löschung des Thyristors 11 ist eine Löscheinrichtung 18 vorgesehen, deren Ausgang mit der Zündelektrode des Thyristors 11 verbunden ist, während der Eingang an die Batterie 5 angeschlossen ist. Diese Löscheinrichtung 18 führt den Thyristor 11 wieder in den nicht leitenden Zustand zurück.To extinguish the thyristor 11, an extinguishing device 18 is provided, the output of which is connected to the ignition electrode of the thyristor 11, while the input is connected to the battery 5. This quenching device 18 leads the thyristor 11 back into the non-conductive state.

Das Einschalten und Ausschalten der gesamten Zündeinrichtung erfolgt mittels eines manuell betätigbaren Schalters 19 in der einen der beiden zu der Batterie 5 führenden Anschlußleitungen.The entire ignition device is switched on and off by means of a manually operable switch 19 in one of the two connecting lines leading to the battery 5.

Claims (9)

1. Detonation device for cartridges, particularly hand weapon cartridges, having a casing (2) which is electrically conductive in at least one partial area and a detonator (3) containing an igniting agent in an electrically conductive housing (4) and adapted to burn at above an ignition temperature, the detonation device comprising a part of the weapon containing the cartridge and in electrically conductive communication with the electrically conductive area of the casing (2) and a detonation current transfer member (6, 6') of electrically conductive material mounted for movement towards a metallic contact element of the detonator (3) and adapted to be brought into contact with the contact element and comprising at least one rechargeable capacitor as the detonation current source (12), a switch (11) being disposed in the circuit leading from the detonation current source (12) via the detonation current transfer member (6, 6'), the detonator (3) and back via the casing (2) and the part of the weapon contacting it to the detonation current source, characterised in that the detonation current transfer member (6, 6') can be applied against the end of the housing of the detonator (3) of a cartridge constructed to be detonated by a firing pin, the detonation current being so dimensioned that the amount of heat generated at the transfer resistance from the detonation current transfer member (6, 6') to the bottom of the housing of the detonator (3) by the detonation current is sufficient to heat the ignition agent at least up to its detonation temperature.
2. Detonation device according to Claim 1, characterised in that in per se known manner the switch is a semi-conductor switch, preferably a thyristor (11).
3. Detonation device according to Claim 1 or 2, characterised in that the detonation current transfer member (6, 6') is constructed as a rod having a detonation tip (6') having a diameter of between 0.5 and 1.5 mm and preferably of 1.3 mm, and contacting the end of the housing of the detonator (3).
4. Detonation device according to one of Claims 1 to 3, characterised in that the detonation current transfer member (6, 6'), at least in the end portion (6') which contacts the end of the housing of the detonator (3), consists of a tough and abrasion-resistant material.
5. Detonation device according to Claim 4, characterised in that the tough and abrasion-resistant material is pure iron, steel, tungsten, tantalum or copper-tungsten.
6. Detonation device according to one of Claims 1 to 5, characterised in that the pressure applied by the detonation current transfer member (6, 6') against the end of the housing of the detonator (3) is between 2 g and 20 g and is preferably around 5 g.
7. Detonation device according to one of Claims 1 to 6, characterised in that the polarity of the detonation current is so chosen that by virtue of the transfer of current between detonator (3) and detonation current transfer member (6, 6'), metal becomes deposited on the latter.
8. Detonation device according to one of Claims 1 to 7, characterised in that the detonation current transfer member (6, 6') is electrically insulated in respect of the metallic part of the percussion head (8) by an insulator (7) inserted into the percussion head (8) of the weapon and in that this insulator (7) consists of a hard material.
9. Detonation device according to Claim 8, characterised in that the material of which the insulator (7) consists is a ceramic material or corundum.
EP83112333A 1982-12-21 1983-12-08 Firing device for cartridges, especially for hand fire-arms Expired EP0112526B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112333T ATE25767T1 (en) 1982-12-21 1983-12-08 IGNITION DEVICE FOR CARTRIDGES, ESPECIALLY FOR HANDGUARD CARTRIDGES.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3247211 1982-12-21
DE3247211 1982-12-21
DE3332530 1983-09-09
DE3332530A DE3332530C2 (en) 1982-12-21 1983-09-09 Ignition device for cartridges, in particular handgun cartridges

Publications (3)

Publication Number Publication Date
EP0112526A2 EP0112526A2 (en) 1984-07-04
EP0112526A3 EP0112526A3 (en) 1985-05-29
EP0112526B1 true EP0112526B1 (en) 1987-03-04

Family

ID=25806708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112333A Expired EP0112526B1 (en) 1982-12-21 1983-12-08 Firing device for cartridges, especially for hand fire-arms

Country Status (3)

Country Link
US (1) US4563828A (en)
EP (1) EP0112526B1 (en)
DE (2) DE3332530C2 (en)

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DE3409195A1 (en) * 1984-03-14 1985-09-19 Heckler & Koch Gmbh, 7238 Oberndorf Method for detonating a cartridge which is constructed for impact detonation, and a firearm for such a cartridge
DE3601394A1 (en) * 1986-01-18 1987-07-23 Guenter Ing Grad Wahl Method for electronic detonation of ammunition, and a device for carrying out the method
US5074189A (en) * 1989-12-22 1991-12-24 Legend Ammunition, Inc. Electrically-fired and magnetically actuated firearm
US5233902A (en) * 1992-05-11 1993-08-10 The United States Of America As Represented By The Secretary Of The Navy Sliding breech block system for repetitive electronic ignition
US5621184A (en) * 1995-04-10 1997-04-15 The Ensign-Bickford Company Programmable electronic timer circuit
US5755056A (en) 1996-07-15 1998-05-26 Remington Arms Company, Inc. Electronic firearm and process for controlling an electronic firearm
US5912428A (en) * 1997-06-19 1999-06-15 The Ensign-Bickford Company Electronic circuitry for timing and delay circuits
US6360470B1 (en) * 2000-07-14 2002-03-26 Smith & Wesson Corp. Firing probe for use in a non-impact firearm
US6397508B1 (en) * 2000-08-21 2002-06-04 Smith & Wesson Corp. Electric firing probe for detonating electrically-fired ammunition in a firearm
US6668700B1 (en) 2000-11-13 2003-12-30 Ra Brands, L.L.C. Actuator assembly
US6785996B2 (en) 2001-05-24 2004-09-07 R.A. Brands, Llc Firearm orientation and drop sensor system
US20050132627A1 (en) * 2002-07-18 2005-06-23 Ernst Wossner Firing pins and breechblocks for firearms
DE202007001155U1 (en) * 2007-01-21 2007-04-26 Voere - Kgh M.B.H. Chamber closing piece for firearm with electrical or laser cartridge ignition has one or more devices for direct or indirect ignition of cartridge
DE102012101037B3 (en) * 2012-02-08 2013-08-01 Krauss-Maffei Wegmann Gmbh & Co. Kg Launching system for launching projectile by vehicle, has ignition module which is optionally provided with either electric or mechanical firing mechanism over common control device, and is optionally connected to common control device
US11644262B2 (en) * 2020-09-09 2023-05-09 Ray Ruizhi Liu Firearm with electronic firing mechanism

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DE364956C (en) * 1918-12-19 1922-12-05 Ernst Ludorf Projectile that carries its propellant charge exclusively inside and is fired electrically
FR525682A (en) * 1920-10-07 1921-09-26 Ernst Ludorf Device for firing cartridges without cartridge cases
US2279692A (en) * 1939-04-24 1942-04-14 Hubert Scott Paine Breech mechanism for ordnance
FR1494769A (en) * 1965-05-05 1967-09-15 Electric firing firearm as well as caseless cartridges for said weapon
US3495349A (en) * 1967-12-26 1970-02-17 Moore Alvin E Electrically-fired gun having a vertically movable missile transferring and firing chamber means
US3650174A (en) * 1970-01-12 1972-03-21 Thomas Sloan Nelsen Electronic ignition system for firearms
US3736837A (en) * 1971-12-28 1973-06-05 Us Army Electrical initiation of percussive-primed cartridges
DE2228558A1 (en) * 1972-06-12 1974-01-03 Ferdinand Jakobs ELECTRIC IGNITION SYSTEM FOR HANDGUN
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DE3012497A1 (en) * 1980-03-31 1981-10-08 Hilti AG, 9494 Schaan METHOD FOR PRODUCING A IGNITION ELECTRODE

Also Published As

Publication number Publication date
DE3370071D1 (en) 1987-04-09
DE3332530A1 (en) 1984-07-05
EP0112526A3 (en) 1985-05-29
EP0112526A2 (en) 1984-07-04
US4563828A (en) 1986-01-14
DE3332530C2 (en) 1985-11-28

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