EP0185251A1 - Projectile fuze - Google Patents

Projectile fuze Download PDF

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Publication number
EP0185251A1
EP0185251A1 EP19850115388 EP85115388A EP0185251A1 EP 0185251 A1 EP0185251 A1 EP 0185251A1 EP 19850115388 EP19850115388 EP 19850115388 EP 85115388 A EP85115388 A EP 85115388A EP 0185251 A1 EP0185251 A1 EP 0185251A1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
projectile
projectile detonator
centrifugal force
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
EP19850115388
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German (de)
French (fr)
Other versions
EP0185251B1 (en
Inventor
Andreas Hälssig
Horst Moosmann
Walter Winterhalter
Günter Westphal
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.)
Gebrueder Junghans GmbH
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Gebrueder Junghans 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.)
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Publication date
Application filed by Gebrueder Junghans GmbH filed Critical Gebrueder Junghans GmbH
Publication of EP0185251A1 publication Critical patent/EP0185251A1/en
Application granted granted Critical
Publication of EP0185251B1 publication Critical patent/EP0185251B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
    • F42C15/285—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids stored within the fuze housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force

Definitions

  • the invention relates to a projectile detonator with a securing element which releases an igniter carrier under the action of centrifugal force.
  • the securing element is formed by a spiral band, which, when secured by means of a spring clip, holds an ignition needle that blocks an igniter carrier. Under the action of centrifugal force, the spiral band widens and the firing pin releases the igniter carrier, which then rotates into focus.
  • the object of the invention is to propose a projectile detonator of the type mentioned at the beginning, in which the securing element is insensitive to impacts and ensures that the pipe is secure.
  • the above task is for a floor Igniter of the type mentioned solved in that the securing element is a piston guided in a cylinder formed on the igniter body, that the piston has a passage opening whose cross section is small compared to the cross section of the piston and that the piston under centrifugal force is a medium filling the cylinder pushes from one side of the piston to the other side of the piston.
  • the piston in the cylinder is moved outwards. This movement is gradual as the piston is braked. It can only move in the unit of time by a distance that corresponds to the volume of the medium pressed through the passage opening.
  • the securing element thus only releases the igniter carrier after a delay. Among other things, this depends on the cross-section of the flow opening and the viscosity of the medium.
  • a liquid is preferably used as the medium.
  • Shocks acting on the projectile body are damped by the medium in such a way that the igniter carrier is not released by shocks.
  • a cylinder 2 is formed in an igniter body 1.
  • a piston 3 is mounted in this.
  • a locking piece 4 is formed on the piston 3. In this sits a compression spring 5, which is supported on a sealing washer 6, which closes the cylinder 2. A pin 7 for guiding the compression spring 5 is provided on the sealing disk 6.
  • the piston 3 is sealed by means of a sealing ring 8 in the cylinder 2.
  • a sealing ring 9 seals the locking piece 4.
  • the piston 3 has a passage opening 10, the cross section of which is considerably smaller than the cross section of the piston 3.
  • the cylinder 2 is filled with a liquid 11.
  • An igniter carrier 12 is mounted in the igniter body 1 and has a recess 13 into which the locking piece 4 engages to ensure it.
  • the locking piece 4 of the piston 3 has left the recess 13.
  • the igniter carrier 12 then moves into the focus position, in which the ignition can then take place. Adequate safety of the front pipe is guaranteed by the braked piston movement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Fuses (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

Ein Geschoßzünder mit einem Sicherungselement, das unter Fliehkraftwirkung einen Anzündmittelträger 12 freigibt, soll unempfindlich gegen Stöße sein und eine Vorrohrsicherheit gewährleisten. Es ist hierfür das Sicherungselement ein in einem am Zünderkörper 1 ausgebildeten Zylinder 2 geführter Kolben 3. Der Kolben 3 ist mit einer Durchtrittöffnung 10 für eine den Zylinder 2 ausfüllende Flüssigkeit 11 versehen. Unter Fliehkraftwirkung wird die Flüssigkeit 11 von der einen Kolbenseite zur anderen Kolbenseite gedrückt, was die Kolbenbewegung bremst.A projectile detonator with a securing element, which releases an igniter carrier 12 under the action of centrifugal force, is said to be insensitive to impacts and to ensure that the pipe is secure. For this purpose, the securing element is a piston 3 guided in a cylinder 2 formed on the igniter body 1. The piston 3 is provided with a passage opening 10 for a liquid 11 filling the cylinder 2. The centrifugal force pushes the liquid 11 from one side of the piston to the other side of the piston, which slows down the piston movement.

Description

Die Erfindung betrifft einen Geschoßzünder mit einem Sicherungselement, das unter Fliehkraftwirkung einen Anzündmittelträger freigibt.The invention relates to a projectile detonator with a securing element which releases an igniter carrier under the action of centrifugal force.

Ein derartiger Geschoßzünder ist beispielsweise in der DE-AS 23 30 013 beschrieben. Das Sicherungselement ist von einem Spiralband gebildet, das in Sicherstellung mittels einer Federklammer eine Zündnadel hält, die einen Anzündmittelträger blockiert. Unter Fliehkraftwirkung weitet sich das Spiralband auf und die Zündnadel gibt den Anzündmittelträger frei, der sich dann in Scharfstellung dreht.Such a projectile detonator is described for example in DE-AS 23 30 013. The securing element is formed by a spiral band, which, when secured by means of a spring clip, holds an ignition needle that blocks an igniter carrier. Under the action of centrifugal force, the spiral band widens and the firing pin releases the igniter carrier, which then rotates into focus.

Aufgabe der Erfindung ist es, einen Geschoßzünder der eingangs genannten Art vorzuschlagen, bei dem das Sicherungselement unempfindlich gegen Stöße ist und eine Vorrohrsicherheit gewährleistet.The object of the invention is to propose a projectile detonator of the type mentioned at the beginning, in which the securing element is insensitive to impacts and ensures that the pipe is secure.

Erfindungsgemäß ist obige Aufgabe bei einem Geschoßzünder der eingangs genannten Art dadurch gelöst, daß das Sicherungselement ein in einem am Zünderkörper ausgebildeten Zylinder geführter Kolben ist, daß der Kolben eine Durchtrittsöffnung aufweist, deren Querschnitt klein im Vergleich zum Querschnitt des Kolbens ist und daß der Kolben unter Fliehkraftwirkung ein den Zylinder ausfüllendes Medium von der einen Kolbenseite zur anderen Kolbenseite drückt.According to the invention, the above task is for a floor Igniter of the type mentioned solved in that the securing element is a piston guided in a cylinder formed on the igniter body, that the piston has a passage opening whose cross section is small compared to the cross section of the piston and that the piston under centrifugal force is a medium filling the cylinder pushes from one side of the piston to the other side of the piston.

Rotiert das Geschoß infolge seines Dralls, dann wird der Kolben in dem Zylinder nach außen bewegt. Diese Bewegung geht allmählich vor sich, da der Kolben gebremst ist. Er kann sich in der Zeiteinheit nur um eine Strecke verschieben, die dem Volumen des durch die Durchtrittsöffnung gepreßten Mediums entspricht. Das Sicherungselement gibt damit den Anzündmittelträger erst nach einer Verzögerungszeit frei. Diese ist unter anderem abhängig vom Querschnitt der Durchflußöffnung und der Viskosität des Mediums. Vorzugsweise wird als Medium eine Flüssigkeit verwendet.If the projectile rotates due to its swirl, the piston in the cylinder is moved outwards. This movement is gradual as the piston is braked. It can only move in the unit of time by a distance that corresponds to the volume of the medium pressed through the passage opening. The securing element thus only releases the igniter carrier after a delay. Among other things, this depends on the cross-section of the flow opening and the viscosity of the medium. A liquid is preferably used as the medium.

Auf den Geschoßkörper wirkende Stöße werden von dem Medium so gedämpft, daß der Anzündmittelträger durch Stöße nicht freigegeben wird.Shocks acting on the projectile body are damped by the medium in such a way that the igniter carrier is not released by shocks.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels. In der Zeichnung zeigen:

  • Figur 1 einen Geschoßzünder im Querschnitt in Sicherstellung und
  • Figur 2 den Geschoßzünder in Scharfstellung.
Advantageous refinements of the invention result from the subclaims and the following description of an exemplary embodiment. The drawing shows:
  • Figure 1 a projectile detonator in cross section in securing and
  • Figure 2 shows the projectile detonator in focus.

In einem Zünderkörper 1 ist ein Zylinder 2 ausgebildet. In diesem ist ein Kolben 3 gelagert.A cylinder 2 is formed in an igniter body 1. A piston 3 is mounted in this.

Am Kolben 3 ist ein Sperrstück 4 ausgebildet. In diesem sitzt eine Druckfeder 5, welche sich an einer Dichtscheibe 6 abstützt, die den Zylinder 2 abschließt. An der Dichtscheibe 6 ist ein Zapfen 7 zur Führung der Druckfeder 5 vorgesehen.A locking piece 4 is formed on the piston 3. In this sits a compression spring 5, which is supported on a sealing washer 6, which closes the cylinder 2. A pin 7 for guiding the compression spring 5 is provided on the sealing disk 6.

Der Kolben 3 ist mittels eines Dichtringes 8 im Zylinder 2 abgedichtet. Ein Dichtring 9 dichtet das Sperrstück 4 ab. Der Kolben 3 weist eine Durchtrittsöffnung 10 auf, deren Querschnitt wesentlich kleiner ist als der Querschnitt des Kolbens 3. Der Zylinder 2 ist mit einer Flüssigkeit 11 gefüllt.The piston 3 is sealed by means of a sealing ring 8 in the cylinder 2. A sealing ring 9 seals the locking piece 4. The piston 3 has a passage opening 10, the cross section of which is considerably smaller than the cross section of the piston 3. The cylinder 2 is filled with a liquid 11.

In dem Zünderkörper 1 ist ein Anzündmittelträger 12 gelagert, der eine Ausnehmung 13 aufweist, in welche in Sicherstellung das Sperrstück 4 eingreift.An igniter carrier 12 is mounted in the igniter body 1 and has a recess 13 into which the locking piece 4 engages to ensure it.

Die Funktionsweise des beschriebenen Geschoßzünders ist etwa folgende:

  • Wird aus der Sicherstellung der Geschoßzünder einem Drall unterworfen, dann wandert unter Fliehkraftwirkung der Kolben 3 gegen die Kraft der Druckfeder 5 nach außen. Seine Bewegung ist durch die Flüssigkeit 11 verzögert. Er kann sich in der Zeiteinheit nur um eine Strecke bewegen, die der in der Zeiteinheit durch die Durchtrittsöffnung a0 hindurchtretenden Durchflußmenge der Flüssigkeit 11 entspricht.
The operation of the projectile fuse described is approximately as follows:
  • If the projectile detonator is subjected to a swirl, the piston 3 moves outwards against the force of the compression spring 5 under the action of centrifugal force. Its movement is delayed by the liquid 11. It can only move in the time unit by a distance which corresponds to the flow rate of the liquid 11 passing through the passage opening a0 in the time unit.

Nach einer gewissen Verzögerungszeit, beispielsweise etwa 20 bis 30 ms, hat das Sperrstück 4 des Kolbens 3 die Ausnehmung 13 verlassen. Unter der Wirkung der Fliehkraft bewegt sich der Anzündmittelträger 12 dann in die Scharfstellung, in der dann die Zündung erfolgen kann. Durch die gebremste Kolbenbewegung ist eine hinreichende Vorrohrsicherheit gewährleistet.After a certain delay time, for example about 20 to 30 ms, the locking piece 4 of the piston 3 has left the recess 13. Under the effect of the centrifugal force, the igniter carrier 12 then moves into the focus position, in which the ignition can then take place. Adequate safety of the front pipe is guaranteed by the braked piston movement.

Auf den Zünderkörper 1 wirkende kurzzeitige Stöße oder Schläge werden in ihrer Auswirkung auf den Kolben 3 bzw. das Sperrstück 4 unterdrückt, da die Flüssigkeit 11 die Kolbenbewegung dämpft. Kleine Verschiebungen des Sperrstücks 4 werden durch die Druckfeder 5 rückgängig gemacht.Short-term impacts or impacts acting on the igniter body 1 are suppressed in their effect on the piston 3 or the locking piece 4, since the liquid 11 dampens the piston movement. Small displacements of the locking piece 4 are reversed by the compression spring 5.

Claims (6)

1. Geschoßzünder mit einem Sicherungselement, das unter Fliehkraftwirkung einen Anzündmittelträger freigibt, dadurch gekennzeichnet, daß das Sicherungselement ein in einem am Zünderkörper (1) ausgebildeten Zylinder (2) geführter Kolben (3) ist, daß der Kolben (3) eine Durchtrittsöffnung (10) aufweist, deren Querschnitt klein im Vergleich zum Querschnitt des Kolbens (3) ist und daß der Kolben (3) unter Fliehkraftwirkung ein den Zylinder (2) ausfüllendes Medium (11) von der einen Kolbenseite zur anderen Kolbenseite drückt.1. projectile detonator with a securing element which releases an ignition medium carrier under centrifugal force, characterized in that the securing element is a piston (3) guided in a cylinder (2) formed on the igniter body (1), that the piston (3) has a passage opening (10 ), whose cross section is small compared to the cross section of the piston (3) and that the piston (3) presses a medium (11) filling the cylinder (2) under centrifugal force from one piston side to the other piston side. 2. Geschoßzünder nach Anspruch 1, dadurch gekennzeichnet, daß das Medium eine Flüssigkeit (11) ist.2. projectile detonator according to claim 1, characterized in that the medium is a liquid (11). 3. Geschoßzünder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kolben (3) mittels einer Feder (5) in die Sicherstellung gedrückt ist.3. projectile detonator according to claim 1 or 2, characterized in that the piston (3) is pressed into the securing means by means of a spring (5). 4. Geschoßzünder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß am Kolben (3) ein Sperrstück (4) ausgebildet ist, das in Sicherstellung in eine Ausnehmung (13) des Anzündmittelträgers (12) greift.4. Projectile detonator according to one of the preceding claims, characterized in that a locking piece (4) is formed on the piston (3), which engages in a recess (13) in the igniter carrier (12). 5. Geschoßzünder nach Anspruch 4, dadurch gekennzeichnet, daß das Sperrstück (4) von einem Dichtring (9) umschlossen ist.5. Projectile detonator according to claim 4, characterized in that the locking piece (4) is enclosed by a sealing ring (9). 6. Geschoßzünder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kolben (3) mittels eines Dichtrings (8) im Zylinder (2) abgedichtet ist.6. Projectile detonator according to one of the preceding claims, characterized in that the piston (3) is sealed in the cylinder (2) by means of a sealing ring (8).
EP85115388A 1984-12-18 1985-12-04 Projectile fuze Expired EP0185251B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3446098 1984-12-18
DE19843446098 DE3446098A1 (en) 1984-12-18 1984-12-18 BULLET IGNITION

Publications (2)

Publication Number Publication Date
EP0185251A1 true EP0185251A1 (en) 1986-06-25
EP0185251B1 EP0185251B1 (en) 1988-12-28

Family

ID=6253061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115388A Expired EP0185251B1 (en) 1984-12-18 1985-12-04 Projectile fuze

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US (1) US4653402A (en)
EP (1) EP0185251B1 (en)
DE (2) DE3446098A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938138A (en) * 1989-08-07 1990-07-03 Honeywell Inc. Safing and arming mechanism with creep ribbon arming delay
FR2815659A1 (en) * 2000-10-19 2002-04-26 Atmostat Etudes Et Rech S Lock for slide mounted in guide used as safety lock on missile comprises locking pin and weight which moves it to unlocked position and is mounted in sealed casing filled with fluid which dampens its motion as it flows through diaphragm
US6564716B1 (en) 2001-12-05 2003-05-20 Kdi Precision Products, Inc. Fuzes having centrifugal arming lock for a munition
KR100616470B1 (en) 2004-12-29 2006-08-29 국방과학연구소 Miniaturized safety and arming device with sliding shutter
US9470498B1 (en) * 2014-09-05 2016-10-18 The United States Of America As Represented By The Secretary Of The Army High pressure isolated latching safety switch device
CN113091537B (en) * 2021-04-09 2024-02-13 南京理工大学 Rotary bomb fuze explosion-propagating separation mechanism for realizing explosive treatment and insensitivity
DE102022106883A1 (en) * 2022-03-23 2023-09-28 Rheinmetall Air Defence Ag Fuse unit for a detonator, use of the fuse unit and method for activating a detonator with this fuse unit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR68733E (en) * 1951-03-20 1958-06-09 Hooker Electrochemical Co Process for preparing hexachlorocyclopentadiene
US2977883A (en) * 1955-08-09 1961-04-04 Czajkowski Norman Detent release mechanism
US2994271A (en) * 1954-04-22 1961-08-01 Silver Meyer Fuze arming device
US3263035A (en) * 1964-08-31 1966-07-26 Robert H Semenoff Retard sensor for retarded bombs
US3356028A (en) * 1966-06-28 1967-12-05 Robert W Heinemann Safety device for an explosive fuze
GB1173495A (en) * 1967-03-06 1969-12-10 Instr Res Lab Ltd Release Mechanism

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1135798A (en) * 1955-08-04 1957-05-03 Muzzle Safety Rocket Improvements
NL101335C (en) * 1957-02-26
FR1256033A (en) * 1960-02-02 1961-03-17 Muzzle safety rocket
US3425354A (en) * 1967-10-30 1969-02-04 Honeywell Inc Centrifugally armed fuze
US3608493A (en) * 1969-04-10 1971-09-28 Honeywell Inc Fuse apparatus
US3919941A (en) * 1973-09-25 1975-11-18 David S Breed Liquid timing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR68733E (en) * 1951-03-20 1958-06-09 Hooker Electrochemical Co Process for preparing hexachlorocyclopentadiene
US2994271A (en) * 1954-04-22 1961-08-01 Silver Meyer Fuze arming device
US2977883A (en) * 1955-08-09 1961-04-04 Czajkowski Norman Detent release mechanism
US3263035A (en) * 1964-08-31 1966-07-26 Robert H Semenoff Retard sensor for retarded bombs
US3356028A (en) * 1966-06-28 1967-12-05 Robert W Heinemann Safety device for an explosive fuze
GB1173495A (en) * 1967-03-06 1969-12-10 Instr Res Lab Ltd Release Mechanism

Also Published As

Publication number Publication date
DE3567096D1 (en) 1989-02-02
US4653402A (en) 1987-03-31
DE3446098A1 (en) 1986-06-26
EP0185251B1 (en) 1988-12-28

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