EP0073333A2 - Switch for projectiles crossing the water surface - Google Patents

Switch for projectiles crossing the water surface Download PDF

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Publication number
EP0073333A2
EP0073333A2 EP82106557A EP82106557A EP0073333A2 EP 0073333 A2 EP0073333 A2 EP 0073333A2 EP 82106557 A EP82106557 A EP 82106557A EP 82106557 A EP82106557 A EP 82106557A EP 0073333 A2 EP0073333 A2 EP 0073333A2
Authority
EP
European Patent Office
Prior art keywords
switch
projectile
water
water surface
breaks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82106557A
Other languages
German (de)
French (fr)
Other versions
EP0073333B1 (en
EP0073333A3 (en
Inventor
Wolfgang Dipl.-Ing. Klein
Hans-Peter Dipl.-Ing. Licht
Hartmut Dipl.-Ing. Schöner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dornier GmbH
Original Assignee
Dornier GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dornier GmbH filed Critical Dornier GmbH
Publication of EP0073333A2 publication Critical patent/EP0073333A2/en
Publication of EP0073333A3 publication Critical patent/EP0073333A3/en
Application granted granted Critical
Publication of EP0073333B1 publication Critical patent/EP0073333B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/06—Electric contact parts specially adapted for use with electric fuzes

Definitions

  • the invention relates to a switch for an electric projectile detonator, which breaks through the water surface between firing and detonation.
  • Missile detonators have the task of releasing a warhead or an explosive charge at the target or at a desired time. As a rule, several switches are closed for ignition, which react to different environmental conditions.
  • Switches are known which react to the impact, to the passage of time, to the approach or to a certain distance from the target.
  • a switch For projectiles that emerge from the water or that are immersed in the water, a switch is desired that registers the reaching of the water surface or falling below a minimum speed.
  • the invention has for its object to provide a switch for projectile detonator, which changes its switching state when reaching the water surface or falling below a minimum speed.
  • a switch in which a spring-loaded pressure transducer is located on the front side of a projectile shell, which holds a switch open when the projectile moves forward under water due to the dynamic pressure and when the water surface is pierced or the speed is too low the switch closes by spring force.
  • a switch according to the invention for underwater projectiles or emerging projectiles is explained with reference to the single figure.
  • the figure shows the tip of the projectile 1, the pressure sensor 2, which is loaded with a spring 3, and the electrical contact 4.
  • the damming force 6 becomes smaller than the spring force 7.
  • the contact 4 is closed and the ignition is triggered or initiated if another criterion for the ignition, e.g. Expiration of a time delay is used.
  • This switch is also used on a projectile that is immersed in the water from the air. However, the ignition is released, not when closing, but when opening contact 4.

Abstract

1. Switch for an electrical fuse of a projectile adapted to break through a water surface between firing and detonation, with a spring-loaded (3) pressure receiver (2) at the frontal end of the projectile casing (1), the pressure receiver (2) opening or closing a contact (4), characterized in that the switch is changing his position by the change of the ram pressure on changes of speed of the projectile under water and on passing through the water surface.

Description

Die Erfindung betrifft einen Schalter für einen elektrischen Geschoßzünder eines Projektils, welches zwischen Abschuß und Detonation die Wasseroberfläche durchbricht.The invention relates to a switch for an electric projectile detonator, which breaks through the water surface between firing and detonation.

Schalter für Geschoßzünder haben die Aufgabe, einen Gefechtskopf oder eine Sprengladung im Ziel oder zu einem gewünschten Zeitpunkt freizugeben. In der Regel werden zur Zündung mehrere Schalter nacheinander geschlossen, die auf verschiedene Umgebungsbedingungen reagieren.Missile detonators have the task of releasing a warhead or an explosive charge at the target or at a desired time. As a rule, several switches are closed for ignition, which react to different environmental conditions.

Bekannt sind Schalter, die auf den Aufschlag, auf Zeitablauf, auf die Annäherung oder auf einen bestimmten Abstand zum Ziel reagieren.Switches are known which react to the impact, to the passage of time, to the approach or to a certain distance from the target.

Für Projektile, die aus dem Wasser auftauchen oder die ins Wasser eintauchen, ist ein Schalter erwünscht, der das Erreichen der Wasseroberfläche oder das Unterschreiten einer Mindestgeschwindigkeit registriert.For projectiles that emerge from the water or that are immersed in the water, a switch is desired that registers the reaching of the water surface or falling below a minimum speed.

Der Erfindung liegt die Aufgabe zugrunde, einen Schalter für Geschoßzünder zu schaffen, der beim Erreichen der Wasseroberfläche oder beim Unterschreiten einer Mindestgeschwindigkeit seinen Schaltzustand ändert.The invention has for its object to provide a switch for projectile detonator, which changes its switching state when reaching the water surface or falling below a minimum speed.

Die Aufgabe wird erfindungsgemäss gelöst duch einen Schalter, bei dem sich an der Stirnseite einer Projektilhülle ein mit einer Feder belasteter Druckaufnehmer befindet, welcher bei einer Vorwärtsbewegung des Projektils unter Wasser durch den Staudruck einen Schalter geöffnet hält und bei Durchstossen der Wasseroberfläche oder bei zu geringer Geschwindigkeit den Schalter durch Federkraft schliesst.The object is achieved according to the invention by a switch in which a spring-loaded pressure transducer is located on the front side of a projectile shell, which holds a switch open when the projectile moves forward under water due to the dynamic pressure and when the water surface is pierced or the speed is too low the switch closes by spring force.

Vorteile der Erfindung sind die

  • - einfache, billige Bauart
  • - sichere Funktion und die
  • - Unanfälligkeit gegen Störungen.
Advantages of the invention are
  • - simple, cheap design
  • - Safe function and the
  • - Immunity to interference.

Ausbildungen der Erfindung sind Gegenstände von Unteransprüchen.Developments of the invention are the subject of dependent claims.

Ein erfindungsgemässer Schalter für Unterwasserprojektile oder auftauchende Projektile wird anhand der einzigen Figur erläutert.A switch according to the invention for underwater projectiles or emerging projectiles is explained with reference to the single figure.

Die Figur zeigt die Spitze des Projektils 1, den Druckaufnehmer 2, der mit einer Feder 3 belastet ist und den elektrischen Kontakt 4.The figure shows the tip of the projectile 1, the pressure sensor 2, which is loaded with a spring 3, and the electrical contact 4.

Sicherungssysteme, die zur Erreichung der Rohrsicherheit und der Vorrohrsicherheit notwendig sind, sind nicht Gegenstände dieser Erfindung und nicht in die Zeichnung mitaufgenommen.Security systems that are necessary to achieve pipe safety and down pipe safety are not the subject of this invention and are not included in the drawing.

Wird das Projektil unter Wasser abgeschossen und bewegt es sich mit ausreichender Geschwindigkeit, so bewirkt der Staudruck 5 auf dem Druckaufnehmer 2 eine Staukraft 6, die die Federkraft 7 übersteigt. Der Schalter bleibt offen.If the projectile is fired under water and it moves at a sufficient speed, the dynamic pressure 5 on the pressure sensor 2 causes a dynamic force 6 which exceeds the spring force 7. The switch remains open.

Sinkt die Geschwindigkeit unter einen Grenzwert oder taucht das Projektil aus dem Wasser auf, so wird die Staukraft 6 kleiner als die Federkraft 7. Der Kontakt 4 wird geschlossen und damit die Zündung ausgelöst oder eingeleitet, falls zur Zündung noch ein weiteres Kriterium z.B. Ablauf einer Zeitverzögerung verwendet wird.If the speed drops below a limit value or if the projectile emerges from the water, the damming force 6 becomes smaller than the spring force 7. The contact 4 is closed and the ignition is triggered or initiated if another criterion for the ignition, e.g. Expiration of a time delay is used.

Dieser Schalter findet auch bei einem Projektil Verwendung, welches von der Luft ins Wasser taucht. Allerdings erfolgt die Freigabe der Zündung.dann nicht beim Schliessen, sondern beim Öffnen des Kontakts 4.This switch is also used on a projectile that is immersed in the water from the air. However, the ignition is released, not when closing, but when opening contact 4.

Claims (3)

1. Schalter für einen elektrischen Geschoßzünder eines Projektils, welches zwischen Abschuß und Detonation die Wasseroberfläche durchbricht, dadurch gekennzeichnet, dass sich an der Stirnseite einer Projektilhülle (1) ein mit einer Feder (3) belasteter Druckaufnehmer (2) befindet, welcher bei einer ausreichenden Geschwindigkeit des Projektils unter Wasser durch den Staudruck einen Kontakt (4) geöffnet hält und beim Durchstossen der Wasseroberfläche oder bei zu geringer Geschwindigkeit den Kontakt (4) mittels Federkraft schliesst.1. Switch for an electric projectile detonator, which breaks through the water surface between firing and detonation, characterized in that there is a pressure sensor (2) loaded with a spring (3) on the front side of a projectile casing (1), which has a sufficient pressure The speed of the projectile under water keeps a contact (4) open due to the dynamic pressure and closes the contact (4) by spring force when it pierces the water surface or if the speed is too low. 2. Verwendung des Schalters des Anspruchs 1 in einem Projektil, welches unter Wasser gestartet wird und die Grenzfläche Wasser/Luft durchbricht, dadurch gekennzeichnet, dass ein Schliessen des Schalters die Zündung auslöst oder freigibt.2. Use of the switch of claim 1 in a projectile which is started under water and breaks through the water / air interface, characterized in that closing the switch triggers or releases the ignition. 3. Verwendung des Schalters nach Anspruch 1 in einem Projektil, welches über Wasser abgeschossen wird und die Grenzfläche Luft/Wasser durchbricht, dadurch gekennzeichnet, dass die Zündung mit öffnung des Schalters ausgelöst wird.3. Use of the switch according to claim 1 in a projectile which is launched over water and breaks through the air / water interface, characterized in that the ignition is triggered when the switch is opened.
EP19820106557 1981-08-22 1982-07-21 Switch for projectiles crossing the water surface Expired EP0073333B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813133364 DE3133364A1 (en) 1981-08-22 1981-08-22 "DAM PRESSURE IGNITION"
DE3133364 1981-08-22

Publications (3)

Publication Number Publication Date
EP0073333A2 true EP0073333A2 (en) 1983-03-09
EP0073333A3 EP0073333A3 (en) 1983-06-29
EP0073333B1 EP0073333B1 (en) 1985-03-13

Family

ID=6139956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820106557 Expired EP0073333B1 (en) 1981-08-22 1982-07-21 Switch for projectiles crossing the water surface

Country Status (2)

Country Link
EP (1) EP0073333B1 (en)
DE (1) DE3133364A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161460A1 (en) * 1984-04-19 1985-11-21 DIEHL GMBH & CO. Fuse-actuating device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403349A1 (en) * 1984-02-01 1985-08-01 Diehl GmbH & Co, 8500 Nürnberg Detonation signal transmitter
DE3625793A1 (en) * 1986-07-30 1991-07-18 Diehl Gmbh & Co Detonation system for underwater projectile - is actuated by hydrodynamic pressure acting on piston in projectile nose
DE3637899C1 (en) * 1986-11-06 1991-02-21 Diehl Gmbh & Co Projectile launched from submarine - has emergence detectors spaced along length to fire rocket when it emerges from water
DE3713414A1 (en) * 1987-04-22 1988-11-10 Diehl Gmbh & Co Fuze for an underwater projectile
DE3715903C1 (en) * 1987-05-13 1993-10-21 Diehl Gmbh & Co Ignition device for an underwater projectile
DE3731447A1 (en) * 1987-09-18 1989-04-06 Junghans Gmbh Geb IGNITION RELEASE DEVICE
DE4021319A1 (en) * 1990-07-04 1992-01-16 Diehl Gmbh & Co SAFETY DEVICE FOR A RELEASE DEVICE PROVIDED FOR RELEASING A SWITCHING FUNCTION AT A PARTICULAR HYDROSTATIC PRESSURE
DE4326737C1 (en) * 1993-08-09 1994-03-31 Deutsche Aerospace Electrical release mechanism with piston - has piston-rod guide narrowed by bead which is expanded by ramp on rod to allow extension or retraction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB578258A (en) * 1932-02-12 1946-05-07 Russell Purves Improvements in or relating to apparatus for use in water
US2596171A (en) * 1949-08-03 1952-05-13 Us Army Pressure switch for fuses
US2827850A (en) * 1952-05-12 1958-03-25 Jr David S Muzzey Hydrostatically controlled arming switch
US2837026A (en) * 1953-03-18 1958-06-03 Burg Solomon Depth charge firing control mechanism
US2961507A (en) * 1950-02-28 1960-11-22 Paul M Higgs Switch
US2961960A (en) * 1949-07-20 1960-11-29 Norris Bob Torpedo exploder mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038973A (en) * 1961-02-06 1962-06-12 Alpert Louis Impact switch
US3601057A (en) * 1969-02-11 1971-08-24 Gibbs Mfg And Research Corp Arming switch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB578258A (en) * 1932-02-12 1946-05-07 Russell Purves Improvements in or relating to apparatus for use in water
US2961960A (en) * 1949-07-20 1960-11-29 Norris Bob Torpedo exploder mechanism
US2596171A (en) * 1949-08-03 1952-05-13 Us Army Pressure switch for fuses
US2961507A (en) * 1950-02-28 1960-11-22 Paul M Higgs Switch
US2827850A (en) * 1952-05-12 1958-03-25 Jr David S Muzzey Hydrostatically controlled arming switch
US2837026A (en) * 1953-03-18 1958-06-03 Burg Solomon Depth charge firing control mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161460A1 (en) * 1984-04-19 1985-11-21 DIEHL GMBH & CO. Fuse-actuating device

Also Published As

Publication number Publication date
DE3133364C2 (en) 1987-12-23
DE3133364A1 (en) 1983-03-10
EP0073333B1 (en) 1985-03-13
EP0073333A3 (en) 1983-06-29

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