EP0071734B1 - Electric-firing mechanism for a launching apparatus - Google Patents

Electric-firing mechanism for a launching apparatus Download PDF

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Publication number
EP0071734B1
EP0071734B1 EP82105611A EP82105611A EP0071734B1 EP 0071734 B1 EP0071734 B1 EP 0071734B1 EP 82105611 A EP82105611 A EP 82105611A EP 82105611 A EP82105611 A EP 82105611A EP 0071734 B1 EP0071734 B1 EP 0071734B1
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EP
European Patent Office
Prior art keywords
firing
switch element
switch
relay
firing mechanism
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
EP82105611A
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German (de)
French (fr)
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EP0071734A3 (en
EP0071734A2 (en
Inventor
Günther Ing. grad. Hesse
Günter Ing. grad. Junkert
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Wegmann and Co GmbH
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Wegmann and Co GmbH
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Publication date
Application filed by Wegmann and Co GmbH filed Critical Wegmann and Co GmbH
Publication of EP0071734A2 publication Critical patent/EP0071734A2/en
Publication of EP0071734A3 publication Critical patent/EP0071734A3/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/001—Functional circuits, e.g. logic, sequencing, interlocking circuits
    • 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

Definitions

  • the invention relates to an electrical firing device for weapon systems with a firing logic generating the firing signal, which can be controlled from at least one firing button and the output of which is connected to the control input of a controllable electronic power switching element via which an ignition device can be connected to an electrical supply circuit.
  • a firing device in which, as mentioned at the outset, an electronic switching element is used to switch the current pulse causing the ignition, is known from DE-A-2 046 098. It is a circuit arrangement for rocket launchers in which the ignition pulses are passed on via thyristors.
  • a circuit arrangement for securing electrically operated weapon systems is known from DE-A-27 03 803.
  • this known circuit arrangement it is possible to define the "safe” and “ready to fire” states of a weapon system by means of electrical switching states, in such a way that the weapon system automatically changes to the "safe” state in the event of any malfunction or incorrect operation but the path between the electrical supply circuit and the ignition device is not included, so that this safety circuit also cannot prevent the uncontrolled breaking of the shot when the electronic switching element fails.
  • the object underlying the invention was to create a firing device of the type mentioned at the outset which meets all the safety requirements with regard to uncontrolled firing.
  • a second controllable switching element is arranged between the electronic switch and the ignition device, which can be controlled via a safety circuit which has a switching device in which the second switching element is opened in one switching position and the second is switched in the other switching position Switching element is closed.
  • the control of the electronic switch via a safety circuit which can be done in such a way that the path between the supply circuit and the ignition device is only released for a short time, ensures that even if the electronic switch is defective, the shot is broken at the wrong time.
  • the second controllable switching element itself does not have to switch the high current pulse, but only has to transmit it, the requirements for the properties of this second switching element are less stringent than for the power switching element.
  • a thyristor or a power transistor or a combination of transistors can be used as the power switching element.
  • a relay can serve as the second controllable switching element (claim 3), but an electronic switch can also be used at this point, which is justifiable at this point, taking into account the safety regulations, since a simultaneous and Similar defects on the two electronic switches arranged in the same branch are very unlikely to occur and electronic switches have a longer service life with regard to the number of switching operations.
  • a particularly advantageous embodiment of the firing device according to the invention is the subject of claim 2. This ensures that the second switching element is generally open and this state is immediately restored shortly after the firing signal has been given, regardless of whether the shot actually broke or whether a There is a defect.
  • a Fire logic 2 can be connected to the supply voltage 5 via a fire button 1.
  • the button signal flows into the firing logic 2.
  • This sends a firing signal via an amplifying transistor Tr3 and a Z diode to the control input 3a of an electronic switch, which is denoted by 3 in FIG. 1 and consists of two in the selected exemplary embodiment Transistors Tr1 and Tr2 in Darlington circuit.
  • a thyristor can also be used as the electronic switch 3 at this point, for example.
  • the supply voltage applied to the electronic switch 3 from the voltage source 5 is switched through when the electronic switch 3 is switched on and reaches the ignition device 4 via the resistors R1 and R2 when the relay contact a1 of a relay A is closed.
  • Relay A belongs to a safety circuit that can be operated from two buttons 6 and 7.
  • the "Ready to fire” state is set by pressing the button 6 and the "Safe” state is set by the 7 button.
  • the button 6 is pressed briefly, a current flows through the relay A, which pulls it in, whereupon it is held via a self-holding circuit consisting of the closed button 7, the relay contact a2 and a diode D2 which protects against incorrect polarity.
  • the diode D1 is used to reduce the fall time of relay A.
  • the self-holding circuit When the button 7 is pressed, the self-holding circuit is briefly interrupted and the relay returns to the idle state by opening the contact a1. The circuit is thus again in the “safe” state and no firing pulses can reach the ignition device 4.
  • the safety circuit also contains a time switching device 8 which, after a predetermined time interval has elapsed after the firing pulse has been applied to the electronic switch 3, opens the latching circuit of relay A via a control transistor Tr4 and thus automatically restores the state “safe with open contact a1”. This restoration of the “safe” state also takes place if, for example as a result of a defect, the voltage at the output of the electronic switch 3 is maintained after the firing signal is given as a result of a defect. This ensures the highest level of security.
  • Resistors R1 and R2 limit the current to the maximum permissible value for electronic switch 3.
  • FIG. 2 The embodiment of a firing device shown in FIG. 2 corresponds in principle to the embodiment according to FIG. 1. For this reason, the same switching elements are provided with the same reference numerals.
  • the fire logic 2 can be connected to the voltage supply 5 via the fire button 1.
  • the firing button 1 When the firing button 1 is actuated, the firing signal 2 passes from the firing logic 2 to the control input 3a of the electronic switch 3 via the transistor Tr3 and the Zener diode.
  • switching through the firing signal to the ignition device 4 is only possible if a second electronic switch 9 is transparent is controlled.
  • This second electronic switch 9 also consists of two transistors Tr5 and Tr6. An opening or closing signal can be fed to its control input 9a, which is either emitted by the two buttons 6 and 7 for the “ready to fire” or “safe” state or by the timer 8.
  • the “ready to fire” state is established by briefly pressing the button 6.
  • the triggered pulse is sent via a NAND gate N1 to the set input 10a of a bistable multivibrator 10, the output 10c of which is connected via a control transistor Tr 7 to the control input 9a of the electronic switch 9 connected is. If the bistable flip-flop 10 is set, it controls the second electronic switch 9 so that a firing signal coming from the first electronic switch 3 can reach the ignition device 4 in this switching state.
  • a reset signal from the time switching device 8 via the NAND gate N2 likewise reaches the bistable flip-flop 10 after a predetermined period of time, which likewise restores the “safe” state.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Relay Circuits (AREA)
  • Electronic Switches (AREA)

Description

Gegenstand der Erfindung ist eine elektrische Abfeuervorrichtung für Waffensysteme mit einer das Abfeuersignal erzeugenden Abfeuerlogik, die von mindestens einem Abfeuertaster aus ansteuerbar ist und deren Ausgang mit dem Steuereingang eines ansteuerbaren elektronischen Leistungsschaltelementes verbunden ist, über das eine Zündvorrichtung mit einem elektrischen Versorgungskreis verbindbar ist.The invention relates to an electrical firing device for weapon systems with a firing logic generating the firing signal, which can be controlled from at least one firing button and the output of which is connected to the control input of a controllable electronic power switching element via which an ignition device can be connected to an electrical supply circuit.

In Waffensystemen, bei denen das Geschoß mittels einer elektrischen Abfeuervorrichtung abgefeuert wird, ist es erforderlich, die zum Zünden benötigte elektrische Energie über ein systemeigenes Schaltelement zur Verfügung zu stellen.In weapon systems in which the projectile is fired by means of an electrical firing device, it is necessary to provide the electrical energy required for firing via an intrinsic switching element.

Bei vielen herkömmlichen Waffensystemen wird der zum Zünden benötigte verhältnismäßig hohe Stromimpuls durch ein Leistungsrelais geschaltet.In many conventional weapon systems, the relatively high current pulse required for firing is switched by a power relay.

Dies hat aber zur Folge, daß bei den herkömmlichen elektrischen Abfeuervorrichtungen mit einem Leistungsrelais zwischen der Betätigung des Abfeuertasters bis zum Fließen des Abfeuerimpulsstromes durch den Zünder der Kartusche eine Totzeit auftritt, die im wesentlichen durch die Anzugzeit des Leistungsrelais bestimmt wird.However, this has the consequence that in the conventional electric firing devices with a power relay, a dead time occurs between the actuation of the firing button and the flow of the firing pulse current through the igniter of the cartridge, which is essentially determined by the pull-in time of the power relay.

Eine Abfeuervorrichtung, bei der, wie eingangs erwähnt, ein elektronisches Schaltelement zur Schaltung des die Zündung bewirkenden Stromimpulses verwendet wird, ist aus der DE-A-2 046 098 bekannt. Es handelt sich dort um eine Schaltungsanordnung für Raketenstartgeräte, bei der die Zündimpulse über Thyristoren weitergeleitet werden.A firing device in which, as mentioned at the outset, an electronic switching element is used to switch the current pulse causing the ignition, is known from DE-A-2 046 098. It is a circuit arrangement for rocket launchers in which the ignition pulses are passed on via thyristors.

Der Verwendung eines elektronischen Schaltelementes zur Schaltung des die Zündung bewirkenden Stromimpulses standen bisher allerdings sicherheitstechnische Bedenken entgegen, da bei einem Defekt eines derartigen elektronischen Schaltelementes, bei dem das Schaltelement leitend wird, ein unkontrolliertes Brechen des Schusses möglich ist.However, the use of an electronic switching element for switching the current pulse causing the ignition has hitherto been opposed to safety-related concerns, since in the event of a defect in such an electronic switching element in which the switching element becomes conductive, the shot can be broken in an uncontrolled manner.

Eine Schaltungsanordnung zur Sicherung von elektrisch betätigten Waffensystemen ist aus der DE-A-27 03 803 bekannt. Mit dieser bekannten Schaltungsanordnung ist es möglich, die Zustände « Sicher » und « Feuerbereit » eines Waffensystems durch elektrische Schaltzustände zu definieren, und zwar derart, daß das Waffensystem bei jeder Störung oder Fehlbedienung automatisch in den Zustand Sicher" übergeht. In die bekannte Schaltungsanordnung ist aber der Weg zwischen dem elektrischen Versorgungskreis und der Zündvorrichtung nicht mit einbezogen, so daß auch diese Sicherheitsschaltung das unkontrollierte Brechen des Schusses beim Ausfalls des elektronischen Schaltelementes nicht verhindern kann.A circuit arrangement for securing electrically operated weapon systems is known from DE-A-27 03 803. With this known circuit arrangement it is possible to define the "safe" and "ready to fire" states of a weapon system by means of electrical switching states, in such a way that the weapon system automatically changes to the "safe" state in the event of any malfunction or incorrect operation but the path between the electrical supply circuit and the ignition device is not included, so that this safety circuit also cannot prevent the uncontrolled breaking of the shot when the electronic switching element fails.

Die der Erfindung zugrunde liegende Aufgabe bestand darin, eine Abfeuervorrichtung der eingangs erwähnten Art zu schaffen, die allen Sicherheitsanforderungen bezüglich eines unkontrollierten Abfeuerns genügt.The object underlying the invention was to create a firing device of the type mentioned at the outset which meets all the safety requirements with regard to uncontrolled firing.

Die Lösung dieser Aufgabe geschieht erfindungsgemäß dadurch, daß zwischen dem elektronischen Schalter und der Zündvorrichtung ein zweites ansteuerbares Schaltelement angeordnet ist, das über einen Sicherheitskreis steuerbar ist, der eine Umschaltvorrichtung aufweist, in deren einer Schaltstellung das zweite Schaltelement geöffnet und in deren anderer Schaltstellung das zweite Schaltelement geschlossen ist.This object is achieved according to the invention in that a second controllable switching element is arranged between the electronic switch and the ignition device, which can be controlled via a safety circuit which has a switching device in which the second switching element is opened in one switching position and the second is switched in the other switching position Switching element is closed.

Die Ansteuerung des elektronischen Schalters über einen Sicherheitskreis, die so erfolgen kann, daß der Weg zwischen Versorgungskreis und Zündvorrichtung jeweils nur kurzzeitig freigegeben wird, stellt sicher, daß auch bei einem Defekt des elektronischen Schalters ein Brechen des Schusses zur Unzeit vermieden wird.The control of the electronic switch via a safety circuit, which can be done in such a way that the path between the supply circuit and the ignition device is only released for a short time, ensures that even if the electronic switch is defective, the shot is broken at the wrong time.

Da das zweite ansteuerbare Schaltelement selbst den hohen Stromimpuls nicht schalten, sondern nur weiterleiten muß, sind die Anforderungen an die Eigenschaften dieses zweiten Schaltelementes weniger hoch als an das Leistungsschaltelement.Since the second controllable switching element itself does not have to switch the high current pulse, but only has to transmit it, the requirements for the properties of this second switching element are less stringent than for the power switching element.

Als Leistungsschaltelement kann ein Thyristor oder ein Leistungstransistor bzw. eine Kombination von Transistoren verwendet werden. Als zweites ansteuerbares Schaltelement kann, falls ein mechanisches Schaltelement gewünscht wird, ein Relais dienen (Anspruch 3), es kann aber auch an dieser Stelle ein elektronischer Schalter eingesetzt werden, was an dieser Stelle auch unter Beachtung der Sicherheitsvorschriften vertretbar ist, da ein gleichzeitiger und gleichartiger Defekt an den beiden, im gleichen Zweig angeordneten elektronischen Schaltern nur mit sehr geringer Wahrscheinlichkeit eintritt und elektronische Schalter eine längere Lebensdauer im Hinblick auf die Anzahl der Schaltvorgänge aufweisen.A thyristor or a power transistor or a combination of transistors can be used as the power switching element. If a mechanical switching element is desired, a relay can serve as the second controllable switching element (claim 3), but an electronic switch can also be used at this point, which is justifiable at this point, taking into account the safety regulations, since a simultaneous and Similar defects on the two electronic switches arranged in the same branch are very unlikely to occur and electronic switches have a longer service life with regard to the number of switching operations.

Eine besonders vorteilhafte Ausführungsform der erfindungsgemäßen Abfeuervorrichtung ist Gegenstand von Anspruch 2. Hierdurch wird sichergestellt, daß das zweite Schaltelement im allgemeinen offen ist und dieser Zustand kurze Zeit nach Abgabe des Abfeuersignals sofort wieder hergestellt wird, unabhängig davon, ob der Schuß tatsächlich brach oder ob ein Defekt vorliegt.A particularly advantageous embodiment of the firing device according to the invention is the subject of claim 2. This ensures that the second switching element is generally open and this state is immediately restored shortly after the firing signal has been given, regardless of whether the shot actually broke or whether a There is a defect.

Im folgenden werden anhand der beigefügten Zeichnungen zwei Ausführungsbeispiele für die erfindungsgemäße Abfeuervorrichtung näher erläutert.

  • Figur 1 zeigt in einem Prinzipschaltbild eine Abfeuervorrichtung, bei der als zweites ansteuerbares Schaltelement ein Relais dient ;
  • Figur 2 zeigt ebenfalls in einem Prinzipschaltbild eine weitere Ausführungsform einer Abfeuervorrichtung, bei der als zweites ansteuerbares Schaltelement ein elektronischer Schalter dient.
Two exemplary embodiments of the firing device according to the invention are explained in more detail below with reference to the accompanying drawings.
  • FIG. 1 shows in a basic circuit diagram a firing device in which a relay serves as the second controllable switching element;
  • FIG. 2 also shows in a basic circuit diagram a further embodiment of a firing device in which an electronic switch serves as the second controllable switching element.

In den Zeichnungen sind lediglich die Teile einer Abfeuervorrichtung dargestellt und bezeichnet, die für die Erläuterung der Erfindung wesentlich erscheinen.In the drawings, only those parts of a firing device are shown and designated that appear essential for the explanation of the invention.

Bei der Ausführungsform nach Fig. 1 ist eine Abfeuerlogik 2 über einen Abfeuertaster 1 an die Versorgungsspannung 5 anschließbar. Bei Betätigung des Abfeuertasters 1 fließt das Tastersignal in die Abfeuerlogik 2. Diese gibt ein Abfeuersignal über einen verstärkenden Transistor Tr3 und eine Z-Diode auf den Steuereingang 3a eines elektronischen Schalters, der in Fig. 1 mit 3 bezeichnet ist und im gewählten Ausführungsbeispiel aus zwei Transistoren Tr1 und Tr2 in Darlington-Schaltung besteht. Selbstverständlich kann als elektronischer Schalter 3 an dieser Stelle beispielsweise auch ein Thyristor verwendet werden.1 is a Fire logic 2 can be connected to the supply voltage 5 via a fire button 1. When the firing button 1 is actuated, the button signal flows into the firing logic 2. This sends a firing signal via an amplifying transistor Tr3 and a Z diode to the control input 3a of an electronic switch, which is denoted by 3 in FIG. 1 and consists of two in the selected exemplary embodiment Transistors Tr1 and Tr2 in Darlington circuit. Of course, a thyristor can also be used as the electronic switch 3 at this point, for example.

Die am elektronischen Schalter 3 von der Spannungsquelle 5 her anliegende Versorgungsspannung wird beim Durchschalten des elektronischen Schalters 3 durchgeschaltet und gelangt über die Widerstände R1 und R2 zur Zündvorrichtung 4, wenn der Relaiskontakt a1 eines Relais A geschlossen ist.The supply voltage applied to the electronic switch 3 from the voltage source 5 is switched through when the electronic switch 3 is switched on and reaches the ignition device 4 via the resistors R1 and R2 when the relay contact a1 of a relay A is closed.

Das Relais A gehört zu einem Sicherheitskreis, der von zwei Tastern 6 und 7 aus betätigbar ist. Hierbei wird durch Betätigung des Tasters 6 der Zustand « Feuerbereit und durch den Taster 7 der Zustand « Sicher eingestellt. Beim kurzen Drücken des Tasters 6 fließt durch das Relais A ein Strom, der es zum Anziehen bringt, worauf es über einen Selbsthaltekreis, bestehend aus dem geschlossenen Taster 7, dem Relaiskontakt a2 und einer gegen Fehlpolungen schützenden Diode D2, gehalten wird. Die Diode D1 dient dazu, die Abfallzeit des Relais A zu reduzieren.Relay A belongs to a safety circuit that can be operated from two buttons 6 and 7. In this case, the "Ready to fire" state is set by pressing the button 6 and the "Safe" state is set by the 7 button. When the button 6 is pressed briefly, a current flows through the relay A, which pulls it in, whereupon it is held via a self-holding circuit consisting of the closed button 7, the relay contact a2 and a diode D2 which protects against incorrect polarity. The diode D1 is used to reduce the fall time of relay A.

Bei Betätigung des Tasters 7 wird der Selbsthaltekreis kurzzeitig unterbrochen und das Relais kehrt unter Öffnung des Kontaktes a1 in den Ruhezustand zurück. Damit befindet sich die Schaltung wieder im Zustand « Sicher und es können keine Abfeuerimpulse zur Zündvorrichtung 4 gelangen.When the button 7 is pressed, the self-holding circuit is briefly interrupted and the relay returns to the idle state by opening the contact a1. The circuit is thus again in the “safe” state and no firing pulses can reach the ignition device 4.

Der Sicherheitskreis enthält weiterhin eine Zeitschaltvorrichtung 8, die nach Ablauf eines vorgegebenen Zeitintervalls nach Anliegen des Abfeuerimpulses am elektronischen Schalter 3 über einen Steuertransistor Tr4 den Selbsthaltekreis des Relais A öffnet und damit automatisch den Zustand « Sicher mit geöffnetem Kontakt a1 wieder herstellt. Diese Wiederherstellung des Zustandes « Sicher » erfolgt auch dann, wenn beispielsweise infolge eines Defektes die Spannung am Ausgang des elektronischen Schalters 3 nach Abgabe des Abfeuersignals infolge eines Defektes erhalten bleibt. Hierdurch ist ein Höchstmaß an Sicherheit erreicht.The safety circuit also contains a time switching device 8 which, after a predetermined time interval has elapsed after the firing pulse has been applied to the electronic switch 3, opens the latching circuit of relay A via a control transistor Tr4 and thus automatically restores the state “safe with open contact a1”. This restoration of the “safe” state also takes place if, for example as a result of a defect, the voltage at the output of the electronic switch 3 is maintained after the firing signal is given as a result of a defect. This ensures the highest level of security.

Durch die Widerstände R1 und R2 wird der Strom auf den maximal für den elektronischen Schalter 3 zulässigen Wert begrenzt.Resistors R1 and R2 limit the current to the maximum permissible value for electronic switch 3.

Die in Fig. 2 dargestellte Ausführungsform einer Abfeuervorrichtung entspricht im Prinzip der Ausführungsform nach Fig. 1. Aus diesem Grund sind gleiche Schaltelemente mit gleichen Bezugszeichen versehen.The embodiment of a firing device shown in FIG. 2 corresponds in principle to the embodiment according to FIG. 1. For this reason, the same switching elements are provided with the same reference numerals.

Die Abfeuerlogik 2 ist über den Abfeuertaster 1 mit der Spannungsversorgung 5 verbindbar. Bei Betätigung des Abfeuertasters 1 gelangt von der Abfeuerlogik 2 aus das Abfeuersignal über den Transistor Tr3 und die Z-Diode auf den Steuereingang 3a des elektronischen Schalters 3. Eine Durchschaltung des Abfeuersignals zur Zündvorrichtung 4 ist aber nur möglich, wenn ein zweiter elektronischer Schalter 9 durchlässig gesteuert ist. Dieser zweite elektronische Schalter 9 besteht ebenfalls aus zwei Transistoren Tr5 und Tr6. Seinem Steuereingang 9a kann ein Öffnungs- bzw. Schließsignal zugeführt werden, das entweder von den beiden Tastern 6 und 7 für die Zustände «Feuerbereit» bzw. « Sicher» oder von der Zeitschaltvorrichtung 8 aus abgegeben wird.The fire logic 2 can be connected to the voltage supply 5 via the fire button 1. When the firing button 1 is actuated, the firing signal 2 passes from the firing logic 2 to the control input 3a of the electronic switch 3 via the transistor Tr3 and the Zener diode. However, switching through the firing signal to the ignition device 4 is only possible if a second electronic switch 9 is transparent is controlled. This second electronic switch 9 also consists of two transistors Tr5 and Tr6. An opening or closing signal can be fed to its control input 9a, which is either emitted by the two buttons 6 and 7 for the “ready to fire” or “safe” state or by the timer 8.

Die Herstellung des Zustandes « Feuerbereit » erfolgt durch kurze Betätigung des Tasters 6. Der ausgelöste Impuls gelangt über ein NAND-Gatter N1 auf den Setzeingang 10a einer bistabilen Kippstufe 10, deren Ausgang 10c über einen Steuertransistor Tr 7 mit dem Steuereingang 9a des elektronischen Schalters 9 verbunden ist. Wird die bistabile Kippstufe 10 gesetzt, so steuert sie den zweiten elektronischen Schalter 9 durchlässig, so daß in diesem Schaltzustand ein vom ersten elektronischen Schalter 3 kommendes Abfeuersignal zur Zündvorrichtung 4 gelangen kann.The “ready to fire” state is established by briefly pressing the button 6. The triggered pulse is sent via a NAND gate N1 to the set input 10a of a bistable multivibrator 10, the output 10c of which is connected via a control transistor Tr 7 to the control input 9a of the electronic switch 9 connected is. If the bistable flip-flop 10 is set, it controls the second electronic switch 9 so that a firing signal coming from the first electronic switch 3 can reach the ignition device 4 in this switching state.

Bei Betätigung des Tasters 7 wird ein Signal über ein NAND-Gatter N3 auf den Löscheingang 10b der bistabilen Kippstufe 10 gegeben. Diese wird zurückgesetzt und dadurch der elektronische Schalter 9 gesperrt und der Zustand « Sicher wieder hergestellt.When the button 7 is actuated, a signal is sent via a NAND gate N3 to the erase input 10b of the bistable multivibrator 10. This is reset and the electronic switch 9 is thereby blocked and the state “safely restored”.

Nach Abgabe des Abfeuerimpulses gelangt nach einem vorgegebenen Zeitraum von der Zeitschaltvorrichtung 8 über das NAND-Gatter N2 ebenfalls ein Rücksetzsignal auf die bistabile Kippstufe 10, wodurch ebenfalls der Zustand « Sicher wieder hergestellt wird.After the firing pulse has been emitted, a reset signal from the time switching device 8 via the NAND gate N2 likewise reaches the bistable flip-flop 10 after a predetermined period of time, which likewise restores the “safe” state.

Claims (6)

1. An electric firing mechanism for launching systems having a firing logic (2) for generating the firing signal, said firing logic being adapted to be selected by at least one firing key (1) and the output of said firing logic being connected with the control input (3a) of a selectable electronic power switch element (3) through which an exploder (4) is adapted to be connected with a electric supply circuit (5), characterized in that, between the electronic switch (3) and the exploder (4), a second selectable switch element (A-a1 : 9) is arranged, said second switch element (A-a1 ; 9) being controllable through a safety circuit comprising a reversing switch device (6, 7) in one switching position of which the second switch element (A-a1 ; 9) is open, and in the other switching position of which said second switch element (A-a1 ; 9) is closed.
2. A firing mechanism as claimed in claim 1, characterized in that the safety circuit comprises a time control device (8), which after the expiration of a predetermined period of time beginning with the emission of the firing signal, shifts the second switch element (A-a1 ; 9) into the open position.
3. A firing mechanism as claimed in claim 1 or 2, characterized in that a relay (A) serves as a second switch element, the contact (a1) of which is connected between the electronic switch (3) and the exploder (4), whereas the relay coil (A) forms part of the safety circuit.
4. A firing mechanism as claimed in claim 3, characterized in that the reversing switch device comprises two keys (6, 7) for selecting the conditions « safe and « ready for action •, and that the relay (A) comprises a self-locking circuit (a2-D2) whereby, upon actuation of the key (7) « safe •, the self-locking circuit of the relay (A) is opened.
5. A firing mechanism as claimed in claim 1 or 2, characterized in that an electronic switch (9) serves as a second switch element, the selection input (9a) of said switch being connected with the safety circuit through a bistable flip-flop (10) in the first state of which the second switch element (9) receives a closing signal whereas, in the second state of said flip-flop, said second switch element receives an opening signal.
6. A firing mechanism as claimed in claim 5, characterized in that the reversing switch device comprises two keys (6, 7) for selecting the conditions « safe and « ready for action", whereby upon the actuation of the key (6) « ready for action •, the bistable flip-flop (10) is shifted into the first state and, upon the actuation of the key (7) « safe », said flip-flop is shifted into the second state.
EP82105611A 1981-08-11 1982-06-25 Electric-firing mechanism for a launching apparatus Expired EP0071734B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3131715 1981-08-11
DE19813131715 DE3131715A1 (en) 1981-08-11 1981-08-11 ELECTRIC FIRE DEVICE FOR WEAPON SYSTEMS

Publications (3)

Publication Number Publication Date
EP0071734A2 EP0071734A2 (en) 1983-02-16
EP0071734A3 EP0071734A3 (en) 1984-03-28
EP0071734B1 true EP0071734B1 (en) 1986-10-22

Family

ID=6139080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105611A Expired EP0071734B1 (en) 1981-08-11 1982-06-25 Electric-firing mechanism for a launching apparatus

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EP (1) EP0071734B1 (en)
DE (2) DE3131715A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102016200147A1 (en) * 2016-01-08 2017-07-13 Thomas Hierl Laser-based weapon simulator and method for producing a shot readiness in such a weapon simulator

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DE3822255A1 (en) * 1988-07-01 1990-01-04 Wegmann & Co Firing system for projectiles, such as smoke candles and the like
EP0356260A3 (en) * 1988-08-26 1991-08-21 MacMillan, Stephen Control circuit
US6167455A (en) * 1995-05-05 2000-12-26 Apple Computer, Inc. Method and system for synchronous operation of linked command objects
DE10204292A1 (en) * 2002-02-02 2003-08-14 Rheinmetall Landsysteme Gmbh Device for increasing the security of a machine gun
CN110285707A (en) * 2019-07-09 2019-09-27 南京华剑兵科工程技术有限公司 A kind of firearms rocket percussion ignition controller
CN111578779A (en) * 2020-06-12 2020-08-25 孙宏宇 Missile launching initiating explosive device insurance control device and method

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US3351016A (en) * 1965-12-10 1967-11-07 Universal Match Corp Explosive arming and firing system
FR1500085A (en) * 1966-06-28 1967-11-03 Trigger for firearm and firearms equipped with this detent
US3613282A (en) * 1969-09-15 1971-10-19 Olin Corp Electrical ignition shotgun for firing caseless ammunition
US3662685A (en) * 1970-03-05 1972-05-16 Simpliway Products Co Firing means for a model rocket
DE2046098C3 (en) * 1970-09-18 1975-11-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit arrangement for igniting the detonators of a rocket launcher
DE2703803A1 (en) * 1977-01-29 1978-08-03 Wegmann & Co Switching circuit ensuring safety in weapon system - has flip=flop circuit preventing firing on actuating switches in wrong order
US4205589A (en) * 1977-10-14 1980-06-03 Engler Richard D Weapon control and firing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016200147A1 (en) * 2016-01-08 2017-07-13 Thomas Hierl Laser-based weapon simulator and method for producing a shot readiness in such a weapon simulator

Also Published As

Publication number Publication date
EP0071734A3 (en) 1984-03-28
EP0071734A2 (en) 1983-02-16
DE3273906D1 (en) 1986-11-27
DE3131715A1 (en) 1983-03-03

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