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EP0116322B1 - Nose fuse - Google Patents

Nose fuse Download PDF

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Publication number
EP0116322B1
EP0116322B1 EP84100744A EP84100744A EP0116322B1 EP 0116322 B1 EP0116322 B1 EP 0116322B1 EP 84100744 A EP84100744 A EP 84100744A EP 84100744 A EP84100744 A EP 84100744A EP 0116322 B1 EP0116322 B1 EP 0116322B1
Authority
EP
European Patent Office
Prior art keywords
housing
impact
projectile
steel
igniter
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
EP84100744A
Other languages
German (de)
French (fr)
Other versions
EP0116322A1 (en
Inventor
Robert Dipl.-Masch. Apothéloz
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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
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Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0116322A1 publication Critical patent/EP0116322A1/en
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Publication of EP0116322B1 publication Critical patent/EP0116322B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/02—Fuze bodies; Fuze housings

Definitions

  • An impact head igniter of this type is known (see US-A-4 230 042) which has two igniter housings, the front of which is made of a light material, e.g. Plastic, and the other is steel.
  • This known detonator is therefore relatively heavy and therefore does not meet the requirement for a relatively light detonator.
  • a “switchable detonator” can be switched from instantaneous ignition to delay ignition.
  • an ignition pin which can be activated by the impact of the projectile in the target.
  • the momentary ignition takes place before the projectile has penetrated deep into the target.
  • a device is available for the delay ignition, which initiates the ignition only after the bullet has hit the target.
  • the delay firing only takes place when the projectile has penetrated deep into the target. If the projectile is to penetrate a concrete wall, there is a risk that the delay device, which is an “essential detonator part”, will be destroyed or the ignition will take place too early.
  • the object to be achieved with the present invention is to create a light detonator that is as deep as possible in a hard target, e.g. penetrate a concrete wall and ignite reliably, i.e. it should be prevented that e.g. the delay ignition is destroyed prematurely by deformation on impact in the target.
  • a light metal housing 11 is screwed into a projectile body 10.
  • a steel housing 12 and an igniter housing 13 are screwed into this light metal housing 11.
  • This detonator housing 13 contains an amplifier charge 14 and projects into an explosive charge 15, which is located inside the projectile body 10.
  • a first thread 16 connects the projectile body 10 and the light metal housing 11 and a second thread 17 connects the igniter housing 13 to the light metal housing 11.
  • the same thread 17 is also used to fasten the steel housing 12 in the light metal housing 11.
  • An actuation button 18 is arranged in the tip of the light metal housing 11 , which is used to move a firing pin 19. So that no moisture can penetrate into the igniter, the actuation button 18 is covered by an elastic cap 20.
  • a switching device 21 which prevents the ignition pin 19 from being displaced when the button 18 is actuated, is used to switch the igniter from instantaneous ignition to delay ignition.
  • the firing pin 19 is used to pierce a squib, not shown, which is located in a slide 22.
  • the slide 22 is slidably mounted in a carrier 23.
  • the carrier 23 is fastened in a manner not shown in the igniter housing 13 and has a bore 24 through which the ignition pin 19 can pierce the primer capsule as soon as the slide 22 has been moved from a safety position into an arming position.
  • the steel housing 12 protects both the pyrotechnic components and the delay device (25) from premature destruction in the event of an impact.
  • the switching device 21 is set to delay detonator, when the projectile hits the target, the actuating button 18 is also pressed in, but it does not push the firing pin 19 against the primer in the slide 22.
  • the projectile is then only after the by the delay device Serve hit at target. During this time, the projectile can penetrate deep into the target, e.g. a concrete wall.
  • the pyrotechnic components and the delay device (25) must not be deformed to such an extent that they become inoperable. These deformations are prevented by the steel housing 12 inserted into the light metal housing 11.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Fuses (AREA)

Description

Die Erfindung betrifft einen Aufschlagzünder für ein Geschoss enthaltend:

  • -einen Geschosskörper;
  • - ein Aufschlagzündergehäuse, das eine Ogive aufweist und in den Geschosskörper eingeschraubt ist;
  • - wobei das Aufschlagzündergehäuse wesentliche Zünderteile enthält;
  • - ein Stahlgehäuse zum Schutze einer Zeitverzögerungseinrichtung.
The invention relates to an impact detonator for a projectile comprising:
  • -a projectile body;
  • - An impact fuse housing, which has an ogive and is screwed into the projectile body;
  • - The impact detonator housing contains essential igniter parts;
  • - A steel case to protect a time delay device.

Es ist üblich, für einen solchen Kopfzünder entweder ein schweres Stahlgehäuse oder ein Leichtmetallgehäuse zu verwenden. Stahlgehäuse haben den Vorteil, dass der Zünder tiefer ins Ziel eindringen kann, bevor er zerstört wird. Leichtmetallgehäuse vermindern das Gewicht des Zünders.It is common to use either a heavy steel housing or a light metal housing for such a detonator. Steel casings have the advantage that the detonator can penetrate further into the target before it is destroyed. Light metal housings reduce the weight of the igniter.

Es ist ein Aufschlag-Kopfzünder dieser Art bekannt (siehe US-A-4 230 042), der zwei Zündergehäuse aufweist, von denen das vordere aus einem leichten Material, z.B. Kunststoff, und das andere aus Stahl besteht. Dieser bekannte Zünder ist daher relativ schwer und erfüllt somit nicht die Forderung nach einem relativ leichten Zünder.An impact head igniter of this type is known (see US-A-4 230 042) which has two igniter housings, the front of which is made of a light material, e.g. Plastic, and the other is steel. This known detonator is therefore relatively heavy and therefore does not meet the requirement for a relatively light detonator.

Es ist ferner ein Aufschlag-Kopfzünder dieser Art bekannt (siehe DE-C-525 053), der einen Verzögerungssatz aufweist. Bei diesem Zünder ist zwischen die Initialzündungseinrichtung und die Sprengladung ein Verzögerungssatz angeordnet, dem ein Hohlraum vorgelagert ist. Dieser Hohlraum ist jedoch nicht wie bei der vorliegenden Erfindung durch ein Stahlgehäuse verstärkt. Die Wände dieses Hohlraumes, insbesondere die vordere und seitliche Innenwandfläche, stehen soweit vom Verzögerungssatz ab, dass sie bei der beim Geschoss durch harte Ziele entstehenden Verformung den Verzögerungssatz nicht erreichen sollen.There is also a known impact detonator of this type (see DE-C-525 053) which has a delay set. In this detonator, a delay set is arranged between the initial ignition device and the explosive charge, which has a cavity in front of it. However, this cavity is not reinforced by a steel housing as in the present invention. The walls of this cavity, in particular the front and side inner wall surfaces, project so far from the deceleration rate that they should not reach the deceleration rate in the case of deformation caused by hard targets on the projectile.

Ein Hohlraum allein genügt jedoch nicht, sondern es ist notwendig, diesen Hohlraum durch ein Stahlgehäuse auszukleiden.However, a cavity alone is not sufficient; it is necessary to line this cavity with a steel housing.

Ein «umschaltbarer Zünder» kann von Momentanzündung auf Verzögerungszündung umgestellt werden. Für die Momentanzündung ist ein durch den Aufschlag des Geschosses im Ziele betätigbarer Zündstift vorhanden. Die Momentanzündung erfolgt, bevor das Geschoss tief ins Ziel eingedrungen ist. Für die Verzögerungszündung ist eine Einrichtung vorhanden, die erst nach dem Aufschlag des Geschosses im Ziel die Zündung einleitet. Die Verzögerungszündung erfolgt erst, wenn das Geschoss tief in das Ziel eingedrungen ist. Wenn das Geschoss in eine Betonwand eindringen soll, besteht die Gefahr, dass die Verzögerungs-Einrichtung, die einen «wesentlichen Zünderteil» darstellt, zerstört wird, oder die Zündung zu früh erfolgt.A “switchable detonator” can be switched from instantaneous ignition to delay ignition. For the momentary ignition there is an ignition pin which can be activated by the impact of the projectile in the target. The momentary ignition takes place before the projectile has penetrated deep into the target. A device is available for the delay ignition, which initiates the ignition only after the bullet has hit the target. The delay firing only takes place when the projectile has penetrated deep into the target. If the projectile is to penetrate a concrete wall, there is a risk that the delay device, which is an “essential detonator part”, will be destroyed or the ignition will take place too early.

Die Aufgabe, die mit der vorliegenden Erfindung gelöst werden soll, besteht in der Schaffung eines leichten Zünders, der möglichst tief in ein hartes Ziel, z.B. eine Betonwand eindringen und dabei zuverlässig zünden soll, d.h. es soll verhindert werden, dass z.B. die Verzögerungs-Zündung vorzeitig durch Deformation beim Aufschlag im Ziel zerstört wird.The object to be achieved with the present invention is to create a light detonator that is as deep as possible in a hard target, e.g. penetrate a concrete wall and ignite reliably, i.e. it should be prevented that e.g. the delay ignition is destroyed prematurely by deformation on impact in the target.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass

  • - das Stahlgehäuse sich vollständig im Inneren des Aufschlagzündergehäuses befindet und in dieses eingeschraubt ist;
  • - das Stahlgehäuse zur Auskleidung des Innenraumes des Aufschlagzündergehäuses dient;
  • - die Zeitverzögerungseinrichtung im Innern des Stahlgehäuses angeordnet ist;
  • - das Aufschlagzündergehäuse aus Leichtmetall besteht.
According to the invention, this object is achieved in that
  • - The steel housing is completely inside the impact igniter housing and is screwed into this;
  • - The steel housing is used to line the interior of the impact igniter housing;
  • - The time delay device is arranged inside the steel housing;
  • - The impact igniter housing is made of light metal.

Ein einziges Ausführungsbeispiel des erfindungsgemässen Kopfzünders ist im folgenden anhand der beigefügten Zeichnung ausführlich beschrieben, wobei die Erfindung selbstverständlich nicht auf dieses Ausführungsbeispiel beschränkt ist. Die einzige Figur der Zeichnung zeigt einen Längsschnitt durch den erfindungsgemässen Kopfzünder.A single embodiment of the head igniter according to the invention is described in detail below with reference to the accompanying drawing, the invention being of course not limited to this embodiment. The only figure in the drawing shows a longitudinal section through the head igniter according to the invention.

Gemäss dieser einzigen Figur der Zeichnung ist in einen Geschosskörper 10 ein Leichtmetallgehäuse 11 eingeschraubt. In dieses Leichtmetallgehäuse 11 ist ein Stahlgehäuse 12 und ein Zündergehäuse 13 eingeschraubt. Dieses Zündergehäuse 13 enthält eine Verstärkerladung 14 und ragt in eine Sprengladung 15 hinein, die sich im Innern des Geschosskörpers 10 befindet. Ein erstes Gewinde 16 verbindet Geschosskörper 10 und Leichtmetallgehäuse 11 und ein zweites Gewinde 17 verbindet das Zündergehäuse 13 mit dem Leichtmetallgehäuse 11. Das gleiche Gewinde 17 dient auch zur Befestigung des Stahlgehäuses 12 im Leichtmetallgehäuse 11. In der Spitze des Leichtmetallgehäuses 11 ist ein Betätigungsknopf 18 angeordnet, der zum Verschieben eines Zündstiftes 19 dient. Damit keine Feuchtigkeit in den Zünder eindringen kann, ist der Betätigungsknopf 18 durch eine elastische Kappe 20 abgedeckt.According to this single figure of the drawing, a light metal housing 11 is screwed into a projectile body 10. A steel housing 12 and an igniter housing 13 are screwed into this light metal housing 11. This detonator housing 13 contains an amplifier charge 14 and projects into an explosive charge 15, which is located inside the projectile body 10. A first thread 16 connects the projectile body 10 and the light metal housing 11 and a second thread 17 connects the igniter housing 13 to the light metal housing 11. The same thread 17 is also used to fasten the steel housing 12 in the light metal housing 11. An actuation button 18 is arranged in the tip of the light metal housing 11 , which is used to move a firing pin 19. So that no moisture can penetrate into the igniter, the actuation button 18 is covered by an elastic cap 20.

Zum Umschalten des Zünders von Momentanzündung auf Verzögerungs-Zündung dient eine Schaltvorrichtung 21, welche bei Verzögerungs- Zündung verhindert, dass der Zündstift 19 bei einer Betätigung des Knopfes 18 verschoben wird.A switching device 21, which prevents the ignition pin 19 from being displaced when the button 18 is actuated, is used to switch the igniter from instantaneous ignition to delay ignition.

Der Zündstift 19 dient zum Anstechen einer nicht gezeigten Zündkapsel, die sich in einem Schieber 22 befindet. Der Schieber 22 ist in einem Träger 23 verschiebbar gelagert. Der Träger 23 ist in nicht dargestellter Weise im Zündergehäuse 13 befestigt und weist eine Bohrung 24 auf, durch welche der Zündstift 19 die Zündkapsel anstechen kann, sobald der Schieber 22 aus einer Sicherheitsstellung in eine Scharfstellung verschoben wurde. Das Stahlgehäuse 12 schützt sowohl die pyrotechnischen Komponenten, als auch die Verzögerungs-Einrichtung (25) vor vorzeitiger Zerstörung beim Aufprall.The firing pin 19 is used to pierce a squib, not shown, which is located in a slide 22. The slide 22 is slidably mounted in a carrier 23. The carrier 23 is fastened in a manner not shown in the igniter housing 13 and has a bore 24 through which the ignition pin 19 can pierce the primer capsule as soon as the slide 22 has been moved from a safety position into an arming position. The steel housing 12 protects both the pyrotechnic components and the delay device (25) from premature destruction in the event of an impact.

Die Wirkungsweise des beschriebenen Kopfzünders ist wie folgt:

  • Falls die Schaltvorrichtung 21 auf Momentanzündung eingestellt ist, wird beim Aufschlag des Geschosses im Ziel der Betätigungsknopf 18 eingedrückt und stösst den Zündstift 19 gegen die Zündkapsel im Schieber 22, der sich während des Geschossfluges in die Scharfstellung verschoben hat. Das Geschoss wird somit gezündet, bevor es ins Ziel eindringen kann.
The operation of the head igniter described is as follows:
  • If the switching device 21 is set to instantaneous ignition, the actuation button 18 is turned on when the projectile hits the target pressed and pushes the firing pin 19 against the primer in the slide 22, which has shifted into focus during the bullet flight. The projectile is fired before it can penetrate the target.

Falls jedoch die Schaltvorrichtung 21 auf Verzögerungszünder eingestellt ist, wird beim Aufschlag des Geschosses im Ziel der Betätigungsknopf 18 zwar ebenfalls eingedrückt, aber er stösst den Zündstift 19 nicht gegen die Zündkapsel im Schieber 22. Das Geschoss wird dann durch die Verzögerungs-Einrichtung erst nach dem Aufschlag im Ziel gezündet. In dieser Zeit kann das Geschoss tief ins Ziel, z.B. eine Betonwand eindringen. Während des Eindringens ins Ziel dürfen die pyrotechnischen Komponenten und die Verzögerungs-Einrichtung (25) nicht so weit deformiert werden, dass sie funktionsuntüchtig werden. Diese Deformationen werden durch das ins Leichtmetallgehäuse 11 eingesetzte Stahlgehäuse 12 verhindert.

Figure imgb0001
However, if the switching device 21 is set to delay detonator, when the projectile hits the target, the actuating button 18 is also pressed in, but it does not push the firing pin 19 against the primer in the slide 22. The projectile is then only after the by the delay device Serve hit at target. During this time, the projectile can penetrate deep into the target, e.g. a concrete wall. During penetration into the target, the pyrotechnic components and the delay device (25) must not be deformed to such an extent that they become inoperable. These deformations are prevented by the steel housing 12 inserted into the light metal housing 11.
Figure imgb0001

Claims (2)

1. An impact fuze for a projectile comprising:
- a projectile body (10);
- an impact fuze housing (11) having a substantially pointed tip (18) and threadably mounted in said projectile body (10);
- said impact fuze housing (11) containing important elements (22, 23, 25) of the fuze;
- a steel housing (12) for projecting a time delay device (25); characterised in that:
- said steel housing (12) is arranged in its entirety in the interior of said impact fuze housing (11) and threadably mounted therein;
- said steel housing (12) is provided for lining the interior of said impact fuze housing (11 );
- said time delay device (15) is arranged in the interior of said steel housing (12);
-said impact fuze housing (11) is being formed of light metal.
2. An impact fuze as claimed in claim 1, characterised in that: said impact fuze housing (11) having a hollow space, limited by a wall; said wall of said hollow space is lined by a steel housing (12) and said time delay device (25) is arranged in its entirety in the interior of said steel housing (12).
EP84100744A 1983-02-15 1984-01-25 Nose fuse Expired EP0116322B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH82283 1983-02-15
CH822/83 1983-02-15

Publications (2)

Publication Number Publication Date
EP0116322A1 EP0116322A1 (en) 1984-08-22
EP0116322B1 true EP0116322B1 (en) 1987-01-28

Family

ID=4196001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84100744A Expired EP0116322B1 (en) 1983-02-15 1984-01-25 Nose fuse

Country Status (6)

Country Link
US (1) US4567830A (en)
EP (1) EP0116322B1 (en)
JP (1) JPS59157499A (en)
CA (1) CA1204022A (en)
DE (1) DE3462285D1 (en)
NO (1) NO840020L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN169266B (en) * 1985-10-22 1991-09-21 Royal Ordnance Plc
US5898213A (en) * 1997-07-07 1999-04-27 Motorola, Inc. Semiconductor package bond post configuration
GB2414534A (en) * 2003-03-25 2005-11-30 Ruag Munition Projectile comprising a sub-caliber penetrator core
DE102007016488B3 (en) * 2007-04-05 2009-01-22 Diehl Bgt Defence Gmbh & Co. Kg Penetallable projectile
US9146088B1 (en) * 2012-04-12 2015-09-29 The Boeing Company High shock survivable fuze

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB124484A (en) * 1916-01-25 1919-04-03 Frank Shinkle Hodson Improvements in Fuses for Projectiles.
DE525053C (en) * 1928-08-05 1931-05-19 Rheinische Metallw & Maschf Head torch with delay for floors
US2483555A (en) * 1943-06-17 1949-10-04 Harry J Nichols Fuse
US2664822A (en) * 1950-01-03 1954-01-05 Frank B Hale Fuze
DE1138663B (en) * 1960-08-10 1962-10-25 Oerlikon Buehrle Ag Reinforcement element for a bullet fuse
CH425549A (en) * 1965-04-23 1966-11-30 Junghans Geb Ag Twist projectile fuze for training projectiles
US3380384A (en) * 1963-08-16 1968-04-30 Junghans Geb Ag Self-destroying fuse
CH508194A (en) * 1969-05-02 1971-05-31 Oerlikon Buehrle Ag bullet
CH525465A (en) * 1970-06-26 1972-07-15 Oerlikon Buehrle Ag Impact fuse for projectiles
US4230042A (en) * 1978-07-26 1980-10-28 Dragolyoub Popovitch Point-detonating impact fuze

Also Published As

Publication number Publication date
DE3462285D1 (en) 1987-03-05
US4567830A (en) 1986-02-04
CA1204022A (en) 1986-05-06
NO840020L (en) 1984-08-16
JPS59157499A (en) 1984-09-06
JPH0128879B2 (en) 1989-06-06
EP0116322A1 (en) 1984-08-22

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