EP0236899B1 - Projectile head provided with a timing fuse - Google Patents

Projectile head provided with a timing fuse Download PDF

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Publication number
EP0236899B1
EP0236899B1 EP87102915A EP87102915A EP0236899B1 EP 0236899 B1 EP0236899 B1 EP 0236899B1 EP 87102915 A EP87102915 A EP 87102915A EP 87102915 A EP87102915 A EP 87102915A EP 0236899 B1 EP0236899 B1 EP 0236899B1
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EP
European Patent Office
Prior art keywords
display
microcomputer
time
running time
emitting diode
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EP87102915A
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German (de)
French (fr)
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EP0236899A1 (en
Inventor
Heinz Hau
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Honeywell Regelsysteme GmbH
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Honeywell Regelsysteme GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C17/00—Fuze-setting apparatus
    • F42C17/04—Fuze-setting apparatus for electric fuzes

Definitions

  • the present invention relates to a time fuse arranged in a projectile tip according to the preamble of patent claim 1.
  • Such a timer is known from US-A 4147 109.
  • a time fuse arranged in a top of the floor is provided with means for programming and a viewing window in the top of the floor serves to partially visualize the programmed value.
  • a program tape which is scanned and used to set a binary counter, is used to program the seconds, tens and hundreds.
  • the programming tape carries a scannable code on one side and an unencrypted numerical value on the other side, which can be read in a window.
  • This programming tape is used for the rough setting (0 to 200 seconds) and an additional setting ring acts via contacts on another adjustable counter to set the tenths of a second. This setting must be read separately on the setting ring. Both settings are made purely mechanically and therefore it is not possible to check whether the counters are set to the codes specified by the mechanical programming device. In particular, when the projectile carrying the time fuse is fired, there is a risk of the set value being adjusted.
  • LED light-emitting diode
  • a projectile tip 10 is provided with a viewing window 12 in which a numerical display 14 is visible within the projectile tip.
  • the numerical display 14 is actuated by an adjusting ring 16 which cooperates with a contact, not shown.
  • the set time is displayed in seconds so that the first digit shows the hundreds seconds and the digit after the decimal point the centiseconds.
  • the projectile tip 10 consists of a metallic housing 18 in the rear part and a plastic housing 20 in the front part.
  • the front part 20 has a central recess 24 which receives a lithium primary battery 28.
  • the electronics 30 controls the number display 14, the numbers of which are visible through the window 12 to the outside.
  • the numerical display 14 is actuated by turning the adjusting ring 16 up to a stop, as a result of which a contact interacting with the electronics 30 is actuated.
  • a receiving coil 32 is arranged in the plastic part 20 concentrically to the projectile axis and is also connected to the central electronics 30 in a manner not shown.
  • the time fuse can be programmed electrically-inductively via this receiving coil 32.
  • a mechanical device 34 is arranged, which in a manner known per se comprises a safety device and an interface block containing an ignition means and the switches required for the ignition means short circuit and the firing sensor.
  • FIG 3 essentially shows the elements of Figure 2 in a block diagram.
  • the central component of the time fuse is the central electronics 30, which has a microcomputer and is fed by the primary battery 28.
  • the primary battery 28 feeds an ignition circuit 36 when it is actuated by the central electronics 30.
  • the ignition circuit 36 can first open after the projectile has been fired via the safety device 34 act an igniter.
  • a detonator running time can be set in the central electronics 30 electrically-inductively via the receiving coil 32 or by hand by corresponding actuation of the setting ring 16 and controlled by the numerical display 14.
  • FIG. 4 shows the central electronics 30 in more detail. The basic structure and function of the circuit arrangement shown are described below:
  • the bit pattern corresponding to the running time and predetermined by the programming sequence can be read in serially at the connection 30 of the microcomputer D2 via a programming logic having the components V16, R17 and C9.
  • a frequency of 100 kHz is still received by the programming device.
  • VMOS transistor V18 is cyclically controlled via output 28 of microcomputer D2.
  • the resulting short circuit on the resonant circuit L2 / C11 is sensed via the phase shift in the transmitter coil of the programming device as information output by the microcomputer D2 and compared with the setting on the programming device (talkback), whereupon the result of the programming is displayed as positive or negative.
  • the alternating magnetic field output by the programming device is then switched off.
  • the VMOS transistor V13 which is driven by the output 27 of the microcomputer D2, ensures the voltage supply of the microcomputer D2 until the predetermined information storage time has expired.
  • the running time is set manually via the setting ring 16, which is represented in FIG. 4 by the switching contact S1.
  • the VMOS transistor V12 and thus the transistor V4 are turned on via the adjusting ring S1 and the diode V8 and the microcomputer D2 is supplied with energy from the primary battery G1-28 at the connection 44.
  • the VMOS transistor V13 is controlled via the output 27 of the microcomputer D2, and the switch-on time of the supply voltage is thus determined via V4 via the microcomputer D2.
  • the runtime information can be entered. If the above sequence is not followed, i.e. If, for example, only three digits are set, the program of the detonators automatically sets itself to runtime 000.0, and there is no function in the event of a possible launch.
  • the display segments of an LED display can be controlled.
  • This display is implemented in such a way that the transistors V24-V31 for the seven segments and the decimal point are activated in succession via the outputs 6-12 and 19 of the microcomputer D2.
  • the transistors V19-V22 are selected for the respective decimal place via the outputs 13-16 of the microcomputer D2.
  • the transistors V19-V22 each switch the light-emitting diode segments LED1-LED7 for one decimal place and one light-emitting diode segment LED8 for the decimal point to the operating voltage, provided that the transistor V24-V31 connected in series with the light-emitting diode segments is also controlled by the microcomputer D2.
  • These transistors V24-V31 are activated in order to save energy.
  • the flight information is saved for a certain time, just like after inductive programming. This is done via the output 27 of the microcomputer D2 and via the elements R14, V13, R3, R4, C4 and V4. After the end of the storage time, the output 27 of the microcomputer D2 is set to zero and the entire energy supply is thereby switched off via the transistor V4. Over-programming by hand or inductively is possible for everyone.
  • the switch S2 is closed via the mechanical security device, which is sensed at the input 29 of the microcomputer D2.
  • An impact function is not provided in the exemplary embodiment, but is possible in itself.
  • a safety oscillator D1 is interrogated cyclically at the input 33 of the microcomputer D2 and compared with the main oscillator G2, R16, C7, C8 in order to prevent premature ignition by a defective quartz crystal G2.
  • the VMOS transistor V14 and the transistor V1 are switched on via the output 26 of the microcomputer D2 to generate the ignition energy, whereupon the battery voltage is switched through to the ignition circuit.
  • the ignition capacitor C3 is charged by cyclically actuating the transistor V14 via the output 25 of the microcomputer D2.
  • a voltage limitation of the capacitor C3 is ensured by the Zener diode V5, which is connected in parallel with the capacitor.
  • the manual setting of the runtime which is provided as an emergency function, is carried out in the manner listed below. It should be noted here that the contact actuated by the adjusting ring is not closed (“OFF") when the adjusting ring is in the clockwise direction as viewed from the tip. On the other hand, the contact is actuated by the adjusting ring ("ON") when the adjusting ring has been turned counterclockwise as far as it will go.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Clocks (AREA)
  • Secondary Cells (AREA)
  • Toys (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Description

Die vorliegende Erfindung bezieht sich auf einen in einer Geschoßspitze angeordneten Zeitzünder nach dem Gattungsbegriff des Patentanspruches 1.The present invention relates to a time fuse arranged in a projectile tip according to the preamble of patent claim 1.

Ein derartiger Zeitzünder ist aus der US-A 4147 109 bekannt. Dort ist ein in einer Geschoßspitze angeordneter Zeitzünder mit Mitteln zur Programmierung versehen und ein Sichtfenster in der Geschoßspitze dient der teilweisen Sichtbarmachung des programmierten Wertes. Zur Programmierung der Einer-, Zehner- und Hunderter-Sekunden dient ein Programmerband, das abgetastet wird und der Einstellung eines Binärzählers dient. Das Programmierband trägt auf einer Seite einen abtastbaren Code und auf der anderen Seite einen nicht verschlüsselten Zahlenwert, der in einem Fenster ablesbar ist. Dieses Programmierband dient der Grobeinstellung (0 bis 200 Sek.) und ein zusätzlicher Einstellring wirkt über Kontakte auf einen weiteren einstellbaren Zähler ein, um die Zehntelsekunden einzustellen. Diese Einstellung muß getrennt am Einstellring abgelesen werden. Beide Einstellungen erfolgen rein mechanisch und daher ist eine Kontrolle darüber, ob die Zähler auf die durch die mechanische Programmiereinrichtung vorgegebenen Codes eingestellt sind nicht möglich. Insbesondere beim Abschuß des den Zeitzündertragenden Geschosses besteht daher die Gefahr einer Verstellung des eingestellten Wertes.Such a timer is known from US-A 4147 109. There, a time fuse arranged in a top of the floor is provided with means for programming and a viewing window in the top of the floor serves to partially visualize the programmed value. A program tape, which is scanned and used to set a binary counter, is used to program the seconds, tens and hundreds. The programming tape carries a scannable code on one side and an unencrypted numerical value on the other side, which can be read in a window. This programming tape is used for the rough setting (0 to 200 seconds) and an additional setting ring acts via contacts on another adjustable counter to set the tenths of a second. This setting must be read separately on the setting ring. Both settings are made purely mechanically and therefore it is not possible to check whether the counters are set to the codes specified by the mechanical programming device. In particular, when the projectile carrying the time fuse is fired, there is a risk of the set value being adjusted.

Es ist daher die Aufgabe der vorliegenden Erfindung, einen Zeitzünder der eingangs genannten Art mit einer Kontrollmöglichkeit der tatsächlich eingestellten bzw. einzustellenden Zeit zu versehen. Die Lösung dieser Aufgabe gelingt gemäß den kennzeichnenden Merkmalen des Patentanspruches 1. Weitere vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen entnehmbar.It is therefore the object of the present invention to provide a time fuse of the type mentioned at the outset with a possibility of checking the time actually set or to be set. This object is achieved according to the characterizing features of claim 1. Further advantageous refinements of the invention can be found in the subclaims.

Bei der vorliegenden Erfindung wird mit Vorteil von einer Leucht-dioden-(LED)-Ziffernanzeige Gebrauch gemacht, die auch bei tiefen Temperaturen funktionsfähig bleibt und bei Nacht keine Beluchtung erfordert. Da eine LED-Ziffernanzeige einen verhältnismäßig hohen Energieverbrauch aufweist, werden gemäß weiterer Ausgestaltung des Zeitzünders die Segmente der Ziffernanzeige der Reihe nach, d.h. intermitterend angesteuert. Die Ansteuerfrequenz kann so gewählt werden, daß die Anzeige nicht flackert.In the present invention, use is advantageously made of a light-emitting diode (LED) numerical display which remains functional even at low temperatures and does not require any lighting at night. Since an LED number display has a relatively high energy consumption, the segments of the number display are sequentially, i.e. controlled intermittently. The control frequency can be selected so that the display does not flicker.

Anhand von in den Figuren der beiliegenden Zeichnung dargestellten Ausführungsbeispielen sei im folgenden die Erfindung näher erläutert. Es zeigen:

  • Figur 1 eine einen Zeitzünder aufweisende Geschoßspitze in perspektivischer Ansicht:
  • Figur 2 einen Axialschnitt durch die Geschoßspitze gemäß Figur 1;
  • Figur 3 ein Blockschaltbild des Zeitzünders; und
  • Figur 4 ein detalliertes Schaltbild der Zünder-Zentralelektronik.
The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the figures of the accompanying drawing. Show it:
  • FIG. 1 is a perspective view of a projectile tip having a time fuse:
  • FIG. 2 shows an axial section through the projectile tip according to FIG. 1;
  • Figure 3 is a block diagram of the timer; and
  • Figure 4 is a detailed circuit diagram of the igniter central electronics.

Gemäß Figur 1 ist eine Geschoßspitze 10 mit einem Sichtfenster 12 versehen, in welchem eine Ziffernanzeige 14 innerhalb' der Geschoßspitze sichtbar ist. Die Ziffernanzeige 14 wird mit einem Einstellring 16 betätigt, der mit einem nicht dargestellten Kontakt zusammenarbeitet. Die eingestellte Zeit wird in Sekunden angezeigt, so daß die erste Ziffer die Hunderter-Sekunden und die Ziffer nach dem Dezimalpunkt die Zentel-Sekunden anzeigt.According to FIG. 1, a projectile tip 10 is provided with a viewing window 12 in which a numerical display 14 is visible within the projectile tip. The numerical display 14 is actuated by an adjusting ring 16 which cooperates with a contact, not shown. The set time is displayed in seconds so that the first digit shows the hundreds seconds and the digit after the decimal point the centiseconds.

Gemäß Figur 2 besteht die Geschoßspitze 10 im hinteren Teil aus einem metallischen Gehäuse 18 und im vorderen Teil aus einem Kunststoffgehäuse 20. Das vordere Teil 20 weist eine zentrale Ausnehmung 24 auf, die eine Lithium-Primärbatterie 28 aufnimmt. Beim Verschrauben des Kunststoffteiles 20 mit dem Gehäuseteil 18 wird der Kontakt zwischen der Primärbatterie 28 und einer in dem metallischen Gehäuse 18 angeordneten Elektronik 30 hergestellt. Die Elektronik 30 steuert die Ziffernanzeige 14 an, deren Ziffern durch das Fenster 12 nach außen sichtbar sind. Die Betätigung der Ziffernanzeige 14 erfolgt durch Verdrehen des Einstellringes 16 bis zu einem Anschlag, wodurch ein mit der Elektronik 30 zusammenwirkender Kontakt betätigt wird. Eine Empfangsspule 32 ist in dem Kunststoffteil 20 konzentrisch zur Geschoßachse angeordnet und ebenfalls in nicht näher dargestellter Weise mit der Zentralelektronik 30 verbunden. Über diese Empfangsspule 32 kann der Zeitzünder elektrisch-induktiv programmiert werden. Im hinteren Teil der Geschoßspitze 10 ist eine mechanische Einrichtung 34 angeordnet, die in an sich bekannter Weise eine Sicherungseinrichtung umfaßt sowie einen ein Zündmittel und die für den Zündmittel-Kurzschluß und der Abschußsensierung benötigten Schalter beinhaltenden Interfaceblock.According to FIG. 2, the projectile tip 10 consists of a metallic housing 18 in the rear part and a plastic housing 20 in the front part. The front part 20 has a central recess 24 which receives a lithium primary battery 28. When the plastic part 20 is screwed to the housing part 18, the contact between the primary battery 28 and electronics 30 arranged in the metallic housing 18 is established. The electronics 30 controls the number display 14, the numbers of which are visible through the window 12 to the outside. The numerical display 14 is actuated by turning the adjusting ring 16 up to a stop, as a result of which a contact interacting with the electronics 30 is actuated. A receiving coil 32 is arranged in the plastic part 20 concentrically to the projectile axis and is also connected to the central electronics 30 in a manner not shown. The time fuse can be programmed electrically-inductively via this receiving coil 32. In the rear part of the projectile tip 10 a mechanical device 34 is arranged, which in a manner known per se comprises a safety device and an interface block containing an ignition means and the switches required for the ignition means short circuit and the firing sensor.

Figur 3 zeigt im wesentlichen die Elemente von Figur 2 in einem Blockschaltbild. Zentraler Bestandteil des Zeitzünders ist die einen Mikrocomputer aufweisende Zentralelektronik 30, die von der Primärbatterie 28 gespeist wird, Zugleich speist die Primärbatterie 28 einen Zündkreis 36 bei dessen Ansteuerung durch die Zentralelektronik 30. Der Zündkreis 36 kann erste nach Abschuß des Geschosses über die Sicherungseinrichtung 34 auf ein Zündmittel einwirken. Eine Zünder-Laufzeit kann in der Zenralelektronik 30 elektrisch-induktiv über die Empfangsspule 32 oder von Hand über entsprechende Betätigung des Einstellringes 16 eingestellt und durch die Ziffernanzeige 14 kontrolliert werden.Figure 3 essentially shows the elements of Figure 2 in a block diagram. The central component of the time fuse is the central electronics 30, which has a microcomputer and is fed by the primary battery 28. At the same time, the primary battery 28 feeds an ignition circuit 36 when it is actuated by the central electronics 30. The ignition circuit 36 can first open after the projectile has been fired via the safety device 34 act an igniter. A detonator running time can be set in the central electronics 30 electrically-inductively via the receiving coil 32 or by hand by corresponding actuation of the setting ring 16 and controlled by the numerical display 14.

Figur 4 zeigt in näheren Einzelheiten die Zentralelektronik 30. Die dargestellte Schaltungsanordnung sei im folgenden in ihrem prinzipiellen Aufbau und ihrer Funktion näher beschrieben:FIG. 4 shows the central electronics 30 in more detail. The basic structure and function of the circuit arrangement shown are described below:

Zunächst sie die elektronische Tempierung betrachtet. Hierbei wird von einem nicht dargestellten Programmiergerät ein Wechselfeld mit einer Frequenz von 100 kHz angelegt, das durch einen Schwingkreis, bestehend aus der Spule L2 und dem Kondensator C11, empfangen wird und nach Gleichrichtung durch die Dioden V11 und V7 einen Kondensator C6 auflädt, wodurch ein V-MOS-Transistor V12 und hierdurch ein weiterer Transistor V4 durchgesteuert wird. Durch die Aufsteuerung des Transistors V4 gelangt die durch die Primärzelle G1-28 vorgegebene Batteriespannung an den Anschluß 44 des Mikrocomputers D2. Hierauf schwingt ein Oszillator an, der aus einem Quarz G2, einem Widerstand R16 und Kondensatoren C7, C8 besteht. Nach Ablauf einer Initialisierungszeit von 500 ms kann am Anschluß 30 des Mikrocomputers D2 über eine die Bauelemente V16, R17 und C9 aufweisende Programmierlogik das der Laufzeit entsprechende und durch die Programmiersequenz vorgegebene Bitmuster seriell eingelesen werden.First she looks at electronic temping. Here, an alternating field with a frequency of 100 kHz is applied by a programming device, not shown, which is received by an oscillating circuit consisting of the coil L2 and the capacitor C11 and, after rectification by the diodes V11 and V7, charges a capacitor C6, thereby causing a V-MOS transistor V12 and thereby another transistor V4 is turned on. Through the When transistor V4 is turned on, the battery voltage specified by primary cell G1-28 reaches terminal 44 of microcomputer D2. An oscillator, which consists of a quartz G2, a resistor R16 and capacitors C7, C8, then vibrates. After an initialization time of 500 ms has elapsed, the bit pattern corresponding to the running time and predetermined by the programming sequence can be read in serially at the connection 30 of the microcomputer D2 via a programming logic having the components V16, R17 and C9.

Nach der eigentlichen Programmierung wird von dem Programmiergerät weiterhin eine Frequenz von 100 kHz empfangen. Entsprechend der Programminformation, die an dem Anschluß 30 des Mikrocomputers D2 eingelaufen ist, wird über den Ausgang 28 des Mikrocomputers D2 der VMOS-Transistor V18 zyklisch angesteuert. Der hierdurch bewirkte Kurzschluß am Schwingkreis L2/C11 wird über die Phasenverschiebung in der Senderspule des Programmiergerätes als eine vom Mikrocomputer D2 ausgegebene Information sensiert und mit der Einstellung am Programmiergerät verglichen (Talkback), woraufhin das Ergebnis der Programmierung als positiv oder negativ angezeigt wird. Danach wird das von dem Programmiergerät ausgegebene magnetische Wechselfeld abgeschaltet.After the actual programming, a frequency of 100 kHz is still received by the programming device. In accordance with the program information that has entered port 30 of microcomputer D2, VMOS transistor V18 is cyclically controlled via output 28 of microcomputer D2. The resulting short circuit on the resonant circuit L2 / C11 is sensed via the phase shift in the transmitter coil of the programming device as information output by the microcomputer D2 and compared with the setting on the programming device (talkback), whereupon the result of the programming is displayed as positive or negative. The alternating magnetic field output by the programming device is then switched off.

Der VMOS-Transistor V13, der vom Ausgang 27 des Mikrocomputers D2 angesteuert wird, gewährleistet die Spannungsversorgung des Mikrocomputers D2 solange, bis die vorgegebene Informationsspeicherzeit abgelaufen ist.The VMOS transistor V13, which is driven by the output 27 of the microcomputer D2, ensures the voltage supply of the microcomputer D2 until the predetermined information storage time has expired.

Die Einstellung der Laufzeit von Hand erfolgt über den Einstellring 16, der in Figur 4 durch den Schaltkontakt S1 repräsentiert wird. Über den Stellring S1 und die Diode V8 wird der VMOS-Transistor V12 und somit der Transistor V4 durchgesteuert und der Mikrocomputer D2 am Anschluß 44 mit Energie aus der Primärbatterie G1―28 versorgt. Nachdem über den Eingang 31 des Mikrocomputers D2 eine Handprogrammierung sensiert worden ist, wird über den Ausgang 27 des Mikrocomputers D2 der VMOS-Transistor V13 angesteuert und somit über V4 die Einschaltzeit der Versorgungsspannung über den Mikrocomputer D2 bestimmt.The running time is set manually via the setting ring 16, which is represented in FIG. 4 by the switching contact S1. The VMOS transistor V12 and thus the transistor V4 are turned on via the adjusting ring S1 and the diode V8 and the microcomputer D2 is supplied with energy from the primary battery G1-28 at the connection 44. After manual programming has been sensed via the input 31 of the microcomputer D2, the VMOS transistor V13 is controlled via the output 27 of the microcomputer D2, and the switch-on time of the supply voltage is thus determined via V4 via the microcomputer D2.

Durch Betätigung des Stellringes S1 in einer bestimmten Sequenz ("EIN"-"AUS") kann die Laufzeitinformation eingegeben werden. Wird die vorgenannte Sequenz nicht eingehalten, d.h. werden beispielsweise nur drei Ziffern eingestellt, so setzt sich der Programm der Zünder automatisch auf die Laufzeit 000.0, und es erfolgt bei einem eventuellen Abschuß keine Funktion.By actuating the adjusting ring S1 in a certain sequence ("ON" - "OFF") the runtime information can be entered. If the above sequence is not followed, i.e. If, for example, only three digits are set, the program of the detonators automatically sets itself to runtime 000.0, and there is no function in the event of a possible launch.

Mit den aufbereiteten Flugdaten können die Anzeigesegmente einer Leuchtdioden-Anzeige angesteuert werden. Die Realisierung dieser Anzeige geschieht in der Weise, daß über die Ausgänge 6-12 und 19 des Mikrocomputers D2 die Transistoren V24-V31 für die sieben Segmente sowie den Dezimalpunkt nacheinander angesteuert werden. Über die Ausgänge 13-16 des Mikrocomputers D2 werden die Transistoren V19-V22 für die jeweilige Dezimalstelle ausgewählt. Die Transistoren V19-V22 schalten jeweils die Leuchtdiodensegmente LED1-LED7 für eine Dezimalstelle sowie ein Leuchtdiodensegment LED8 für den Dezimalpunkt an die Betriebsspannung unter der Voraussetzung, daß der in Reihe zu den Leuchtdiodensegmenten geschaltete Transistor V24-V31 ebenfalls von dem Mikrocomputer D2 angesteuert ist. Die Ansteuerung dieser Transistoren V24-V31 geschieht der Reihe nach, um Energie einzusparen.With the processed flight data, the display segments of an LED display can be controlled. This display is implemented in such a way that the transistors V24-V31 for the seven segments and the decimal point are activated in succession via the outputs 6-12 and 19 of the microcomputer D2. The transistors V19-V22 are selected for the respective decimal place via the outputs 13-16 of the microcomputer D2. The transistors V19-V22 each switch the light-emitting diode segments LED1-LED7 for one decimal place and one light-emitting diode segment LED8 for the decimal point to the operating voltage, provided that the transistor V24-V31 connected in series with the light-emitting diode segments is also controlled by the microcomputer D2. These transistors V24-V31 are activated in order to save energy.

Nach erfolgreicher Handprogrammierung wird wie nach der induktiven Programmierung für eine bestimmte Zeit die Fluginformation gespeichert. Dies geschieht über den Ausgang 27 des Mikrocomputers D2 sowie über die Elemente R14, V13, R3, R4, C4 und V4. Nach Ende der Speicherzeitwird der Ausgang 27 des Mikrocomputers D2 auf Null gesetzt und hierdurch die gesamte Energieversorgung über den Transistor V4 abgeschaltet. Eine Überprogrammierung von Hand oder auch induktiv ist jederseit möglich.After successful manual programming, the flight information is saved for a certain time, just like after inductive programming. This is done via the output 27 of the microcomputer D2 and via the elements R14, V13, R3, R4, C4 and V4. After the end of the storage time, the output 27 of the microcomputer D2 is set to zero and the entire energy supply is thereby switched off via the transistor V4. Over-programming by hand or inductively is possible for everyone.

Wenn innerhalb der festgelegten Speicherzeit der Fluginformation der Zünder abgeschossen wird, so wird über die mechanische Sicherungseinrichtung der Schalter S2 geschlossen, was am Eingang 29 des Mikrocomputers D2 sensiert wird. Eine Aufschlagfunktion ist im Ausführungsbeispiel nicht vorgesehen, jedoch an sich möglich.If the detonator is fired within the specified storage time of the flight information, the switch S2 is closed via the mechanical security device, which is sensed at the input 29 of the microcomputer D2. An impact function is not provided in the exemplary embodiment, but is possible in itself.

Nach dem Abschuß wird die gespeicherte Flugzeit in bekannter Weise zurückgezählt. Außerdem wird am Eingang 33 des Mikrocomputers D2 ein Sicherheitsoszillator D1 zyklisch abgefragt und mit dem Hauptoscillator G2, R16, C7, C8 verglichen, um eine vorzeitige Zündung durch einen eventuell defekten Schwingquarz G2 zu verhindern. Vor Erreichen des Zündzeitpunktes wird zur Erzeugung der Zündenergie über den Ausgang 26 des Mikrocomputers D2 der VMOS-Transistor V14 und hierüber der Transistor V1 eingeschalter, worauf die Batteriespannung auf den Zündkreis durchgeschaltet wird.After the launch, the saved flight time is counted down in a known manner. In addition, a safety oscillator D1 is interrogated cyclically at the input 33 of the microcomputer D2 and compared with the main oscillator G2, R16, C7, C8 in order to prevent premature ignition by a defective quartz crystal G2. Before the ignition point is reached, the VMOS transistor V14 and the transistor V1 are switched on via the output 26 of the microcomputer D2 to generate the ignition energy, whereupon the battery voltage is switched through to the ignition circuit.

Über die Sperrschwingerschaltung, bestehend aus der Spule L1, dem VMOS-Transistor V14 und der Diode V2, wird durch zyklisches Ansteuern des Transitors V14 über den Ausgang 25 des Mikrocomputers D2 der Zündkondensator C3 aufgeladen. Eine Spannungsbegrenzung des Kondensators C3 wird durch die Zenerdiode V5 sichergestellt, die dem Kondensator parallelgeschaltet ist. Bei Erreichen des Zündzeitpunktes wird der Kondensator über den Ausgang 24 des Mikrocomputers D2 und die Komponenten V6, R10, C5 und den Thyristor V4 auf den Detonator entladen und somit die Zündung eingeleitet.Via the blocking oscillator circuit, consisting of the coil L1, the VMOS transistor V14 and the diode V2, the ignition capacitor C3 is charged by cyclically actuating the transistor V14 via the output 25 of the microcomputer D2. A voltage limitation of the capacitor C3 is ensured by the Zener diode V5, which is connected in parallel with the capacitor. When the ignition point is reached, the capacitor is discharged onto the detonator via the output 24 of the microcomputer D2 and the components V6, R10, C5 and the thyristor V4, and thus the ignition is initiated.

Die Handeinstellung der Laufzeit, die als Notfunktion vorgesehen ist, erfolgt in der nachstehend aufgeführten Weise. Hierbei ist zu bemerken, daß der von dem Einstellring betätigte Kontakt nicht geschlossen ist ("AUS"), wenn der Einstellring von der Spitze aus betrachtet im Uhrzeigersinn am Anschlag steht. Andererseits ist der Kontakt durch den Einstellring betätigt ("EIN"), wenn der Einstellring entgegen dem Uhrzeigersinn bis zum Anschlag gedreht worden ist.The manual setting of the runtime, which is provided as an emergency function, is carried out in the manner listed below. It should be noted here that the contact actuated by the adjusting ring is not closed ("OFF") when the adjusting ring is in the clockwise direction as viewed from the tip. On the other hand, the contact is actuated by the adjusting ring ("ON") when the adjusting ring has been turned counterclockwise as far as it will go.

Ablauf der Einstellung:

  • A-Einstellring betätigen "EIN" *Eingestellte Zeit wird angezeigt (000.0, wenn keine Zeit eingestellt)
  • B-Einstellring nicht betätigen "AUS" *Nach 5 Sekunden wird Anzeige gelöscht
  • C-"EIN" innerhalb von 5 Sekunden *Programmierung wird gestartet 0.1 er Sekunden laufen hoch
  • D-"AUS" *0.1 er Sekunden werden gestoppt und angezeigt -Die Einstellung der 1er, 10er, 100er Sekunden läuft ab, wie unter Punkt C und D beschrieben
  • E-Nach erfolgter Programmierung wird die Zeitinformation für eine bestimmte Zeit gespeichert. Danach die Stromversorgung abgeschaltet
  • F-"EIN" wie bei Punkt A/"AUS" wie bei Punkt B *Zeit wird angezeigt (beträgt die angezeigte Zeit 000.0, so wird die Stromversorgung abgeschaltet).
Setting procedure:
  • Press the A setting ring "ON" * The set time is displayed (000.0 if no time is set)
  • Do not press the B setting ring "OFF" * The display is cleared after 5 seconds
  • C- "ON" within 5 seconds * Programming starts 0.1 seconds run up
  • D- "OFF" * 0.1 seconds are stopped and displayed -The setting of the 1, 10, 100 seconds runs as described under points C and D.
  • E-After programming, the time information is saved for a specific time. Then the power supply is switched off
  • F- "ON" as in point A / "OFF" as in point B * Time is displayed (if the displayed time is 000.0, the power supply is switched off).

Claims (4)

1. Time fuse arranged in the nose portion (10) of a projectile comprising means for programming the time fuse, a transparent window (12) within the nose portion for displaying the programmed running time and a setting ring (16) serving to change the programmed running time, characterized by a light emitting diode display (14) behind of said transparent window (12), which may be actuated by means of the setting ring (16, S1) via a microcomputer (D2) or may be changed with respect to the displayed running time, respectively in order to display the memorized running time orto monitor a manual setting of the running time, whereat the setting ring (16) serves to actuate a switch contact (S1) with said switch contact (S1) at its first actuation connecting a voltage supply source (G1) via a circuit device (V8, V12, V4) to said microcomputer (D2) in order to display via its outputs (6-12, 19) a programmed running time on said light emitting diode display or to effect at a further actuation of said switch contact (S1) in a predetermined sequence a running time setting to be monitored via said light emitting diode display (14).
2. Time fuse according to claim 1, characterized in that the display segments (LEDI-LEDB) of said light emitting diode display (14) or of a light emitting diode decimal point are intermittently controlled.
3. Time fuse according to claim 2, characterized by the control of transistors (V24-V31) in a sequence via the output of said microcomputer (D2) whereat the transistors are arranged in a series connection with respect to said display segments (LED1-LED7) of a decimal place or said display segment (LEDB) of said decimal point, respectively.
4. Time fuse according to claim 3, characterized in that for each decimal place a transistor is arranged which is controlled by an output (31-16) of said microcomputer (D2) with said transistor each feeding the supply voltage to the display segments (LED1-LED8) of a decimal place in the event, where the transistor (V24-V31) correlated to the individual display segment is also switched-on.
EP87102915A 1986-03-06 1987-03-02 Projectile head provided with a timing fuse Expired - Lifetime EP0236899B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863607372 DE3607372A1 (en) 1986-03-06 1986-03-06 FLOOR TIP WITH A TIMER
DE3607372 1986-03-06

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EP0236899A1 EP0236899A1 (en) 1987-09-16
EP0236899B1 true EP0236899B1 (en) 1990-11-28

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Application Number Title Priority Date Filing Date
EP87102915A Expired - Lifetime EP0236899B1 (en) 1986-03-06 1987-03-02 Projectile head provided with a timing fuse

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US (1) US4750424A (en)
EP (1) EP0236899B1 (en)
DE (2) DE3607372A1 (en)

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Also Published As

Publication number Publication date
DE3607372C2 (en) 1988-07-14
EP0236899A1 (en) 1987-09-16
DE3766388D1 (en) 1991-01-10
DE3607372A1 (en) 1987-09-17
US4750424A (en) 1988-06-14

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