EP1229299B1 - Projectile and method for manufacturing such a projectile - Google Patents

Projectile and method for manufacturing such a projectile Download PDF

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Publication number
EP1229299B1
EP1229299B1 EP02000639A EP02000639A EP1229299B1 EP 1229299 B1 EP1229299 B1 EP 1229299B1 EP 02000639 A EP02000639 A EP 02000639A EP 02000639 A EP02000639 A EP 02000639A EP 1229299 B1 EP1229299 B1 EP 1229299B1
Authority
EP
European Patent Office
Prior art keywords
projectile
thread
igniter
external thread
nose fuze
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 - Lifetime
Application number
EP02000639A
Other languages
German (de)
French (fr)
Other versions
EP1229299A3 (en
EP1229299A2 (en
Inventor
Ralf Aumund-Kopp
Ernst-Wilhelm Altenau
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 Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP1229299A2 publication Critical patent/EP1229299A2/en
Publication of EP1229299A3 publication Critical patent/EP1229299A3/en
Application granted granted Critical
Publication of EP1229299B1 publication Critical patent/EP1229299B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/0838Primers or igniters for the initiation or the explosive charge in a warhead

Definitions

  • the invention relates to a projectile with a projectile shell and a front side with the Projectile shell connectable via a screw head fuse according to the characteristics of the preamble of claim 1.
  • the invention further relates to a method for producing such a projectile.
  • the present invention is based on the object, a projectile of the aforementioned Specify type whose head fuse in a simple way by a new Igniter - for example, still in the battle position by the appropriate soldiers exchanges leaves. Furthermore, a method for producing such a projectile be revealed.
  • the invention is based essentially on the idea that between the external thread and the Mundlochgewinde not as hitherto a hardening mass as a sealant, but a permanently elastic sealant is arranged.
  • the permanently elastic Sealant e.g. in viscous form applied to the external thread of the head igniter.
  • the head igniter may then be subsequently or at a suitable later time (For example, after several months) are screwed onto the projectile casing.
  • a suitable later time For example, after several months
  • the use of the permanently elastic sealant also has the advantage that also continue existing head igniter can be used. A change in the Connection between rear-side part of the igniter and igniter tip is therefore not required.
  • Pre-coated head lighters can be bolted to the bullet shell or up to be stored for several years at room temperature.
  • the figure shows the front portion of a spin-stabilized designated 1 artillery projectile.
  • the projectile 1 comprises a projectile casing 2, in which explosives. 3 located and a head igniter 4.
  • the provided with an external thread 5 head igniter 4 is screwed into an internal thread (mouth hole thread) 6 of the projectile casing 2.
  • a permanently elastic sealant. 7 arranged between the threads of the two threads 5, 6 .
  • the permanently elastic sealant 7 is first in viscous Mold on the external thread 5 of the Kopfzünders 4 and / or on the Mundlochgewinde 6 of the projectile casing 2 applied. Only the thread has to be pre-coated should be, clean and fat-free. Subsequently, the precoated Head igniter 4 are then bolted immediately to the projectile casing 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Description

Die Erfindung betrifft ein Geschoß mit einer Geschoßhülle und einem vorderseitig mit der Geschoßhülle über eine Schraubverbindung verbindbaren Kopfzünder nach den Merkmalen des Oberbegriffes des Anspruchs 1. Die Erfindung bezieht sich ferner auf ein Verfahren zur Herstellung eines derartigen Geschosses.The invention relates to a projectile with a projectile shell and a front side with the Projectile shell connectable via a screw head fuse according to the characteristics of the preamble of claim 1. The invention further relates to a method for producing such a projectile.

Artilleriegeschosse werden häufig ohne Kopfzünder an den jeweiligen Beschaffer der entsprechenden Munition ausgeliefert, wobei anstelle des Zünders eine sogenannte Heberingverschlußschraube in das Innengewinde (Mundlochgewinde) der Geschoßhülle eingeschraubt wird. Zur Vermeidung von Korrosion wird das Gewinde mit Silikonfett großzügig eingestrichen. Die Abdichtung gegen Feuchtigkeit erfolgt durch einen flachen Gummiring. Die massive Heberingverschlußschraube kann stets mit ausreichendem Drehmoment angezogen werden, so daß sich eine zuverlässige Dichtung zum Geschoßinneren ergibt. Das Einschrauben des Kopfzünders in die Geschoßhülle erfolgt erst unmittelbar vor dem Geschoßeinsatz, z.T. sogar erst direkt vor der Schußabgabe in der Feuerstellung, so daß die Auswahl des Zünders (Zeitzünder, Betonbrechzünder etc.) an die spezifischen Bedürfnisse des jeweiligen Einsatzfalles ausgerichtet werden können. Siehe z.B. US 3 547 036.Artillery projectiles are often without a detonator to the respective procurer of the corresponding Ammunition delivered, wherein instead of the igniter, a so-called lifting ring screw screwed into the internal thread (Mundlochgewinde) of the projectile shell becomes. To avoid corrosion, the thread with silicone grease is generous pocketed. The seal against moisture is made by a flat rubber ring. The massive lifting bolt can always be tightened with sufficient torque be so that there is a reliable seal to the projectile interior. The Screwing the head detonator into the projectile casing takes place just before the projectile insert, z.T. even just before the firing in the firing position, so that the Selection of the detonator (time fuse, concrete breaker etc.) to the specific needs can be aligned to the particular application. See, e.g. US 3,547,036.

Im Zusammenhang mit neuen Logistikkonzepten wird zunehmend gefordert, Artilleriegeschosse bereits mit einem Kopfzünder versehen an den jeweiligen Kunden auszuliefern. Der Zünder muß daher neben seiner bisherigen Funktion, das Geschoß im Zielgebiet zu zünden bzw. zur Wirkung zu bringen, zusätzlich auch die Funktion, das Geschoß bei Lagerung und Transport gegen eindringende Feuchtigkeit zuverlässig abzudichten, übernehmen, wobei die Verbindung den üblichen Beanspruchungen (Temperaturwechsel, Vibrationen etc.) standhalten muß. Dieses wird derzeit dadurch erreicht, daß zur Abdichtung handelsübliche anaerob aushärtende Dichtmittel verwendet werden, die z.T. gleichzeitig auch als Sicherungsmittel wirken. Dabei wird das jeweilige Dicht- oder Sicherungsmittel vor dem Zusammenschrauben auf das Außengewinde des Kopfzünders aufgetragen. Siehe z.B. EP 0 633 448.In connection with new logistics concepts, artillery projectiles are increasingly required already delivered with a detonator to the respective customer. The detonator must therefore in addition to its previous function, the projectile in the target area ignite or bring to effect, in addition, the function of the projectile during storage and transport to reliably seal against ingress of moisture, the connection being subject to the usual stresses (temperature changes, vibrations etc.) must withstand. This is currently achieved in that for sealing commercial anaerobically curing sealants are used, the z.T. at the same time also as Locking agents act. In this case, the respective sealing or securing means before the Screwed together on the external thread of the head igniter. See, e.g. EP 0 633 448.

Nachteilig ist bei diesen mit einem vormontierten Kopfzünder versehenen Geschossen allerdings, daß eine Demontage des Zünders nach dem Aushärten des Dichtmittels kaum mehr möglich ist, weil die Klebkraft im Gewinde so hoch ist, daß ein zerstörungsfreies Lösen des Kopfzünders in der Regel nicht möglich ist. Denn die heute üblicherweise verwendeten Kopfzünder weisen zwar ein stark beanspruchbares Außengewinde auf, doch erfolgt die Verbindung zwischen dem heckseitigen in der Geschoßhülle liegenden Teil des Zünders und der Zünderspitze ebenfalls über eine Schraubverbindung, die beim Abschrauben des Zünders aufgrund der großen Losdrehmomente relativ leicht beschädigt werden kann.The disadvantage of these provided with a preassembled head detonator projectiles, however, that disassembly of the igniter hardly after curing of the sealant More is possible because the bond strength in the thread is so high that a non-destructive Releasing the detonator is usually not possible. Because today's commonly used Although head lighters have a strong external thread, but the connection between the rear side lying in the projectile casing part of the Igniter and the ignition tip also via a screw connection, which when unscrewing of the fuze due to the large loosening torques are relatively easily damaged can.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Geschoß der eingangs erwähnten Art anzugeben, dessen Kopfzünder sich auf einfache Weise durch einen neuen Zünder -beispielsweise noch in der Gefechtsstellung durch die entsprechenden Soldatenaustauschen läßt. Ferner soll ein Verfahren zur Herstellung eines derartigen Geschosses offenbart werden.The present invention is based on the object, a projectile of the aforementioned Specify type whose head fuse in a simple way by a new Igniter - for example, still in the battle position by the appropriate soldiers exchanges leaves. Furthermore, a method for producing such a projectile be revealed.

Diese Aufgabe wird erfindungsgemäß hinsichtlich des Geschosses durch die Merkmale des Anspruchs 1 und hinsichtlich des Verfahrens durch die Merkmale des Anspruchs 2 gelöst. Eine weitere, besonders vorteilhafte Ausgestaltung der Erfindung offenbart der Unteranspruch.This object is achieved according to the projectile in terms of the characteristics of the Claim 1 and with respect to the method by the features of claim 2 solved. Another, particularly advantageous embodiment of the invention discloses the dependent claim.

Die Erfindung beruht im wesentlichen auf dem Gedanken, daß zwischen dem Außengewinde und dem Mundlochgewinde nicht wie bisher eine aushärtende Masse als Dichtmittel, sondern ein dauerelastisches Dichtmittel angeordnet wird. Hierzu wird das dauerelastische Dichtmittel z.B. in zähflüssiger Form auf das Außengewinde des Kopfzünders aufgetragen. Der Kopfzünder kann dann anschließend oder zu einem geeigneten späteren Zeitpunkt (z.B. noch nach mehreren Monaten) auf die Geschoßhülle aufgeschraubt werden. Dadurch wird der Gewindespalt zwischen Zünderaußen- und Geschoßinnengewinde vollständig ausgefüllt und ergibt eine gute Dichtwirkung, ohne die Lösbarkeit des Kopfzünders negativ zu beeinflussen.The invention is based essentially on the idea that between the external thread and the Mundlochgewinde not as hitherto a hardening mass as a sealant, but a permanently elastic sealant is arranged. For this purpose, the permanently elastic Sealant e.g. in viscous form applied to the external thread of the head igniter. The head igniter may then be subsequently or at a suitable later time (For example, after several months) are screwed onto the projectile casing. As a result, the thread gap between Zünderaußen- and bullet internal thread is complete filled and gives a good sealing effect, without the solubility of the Kopfzünders to influence negatively.

Die Verwendung des dauerelastischen Dichtmittels weist ferner den Vorteil auf, daß auch weiterhin bereits vorhandene Kopfzünder verwendet werden können. Eine Änderung der Verbindung zwischen heckseitigem Teil des Zünders und Zünderspitze ist daher nicht erforderlich.The use of the permanently elastic sealant also has the advantage that also continue existing head igniter can be used. A change in the Connection between rear-side part of the igniter and igniter tip is therefore not required.

Als besonders vorteilhaft haben sich in der Praxis dauerelastische Dichtmittel erwiesen, die auch noch bei einer Temperatur von -50 °C elastisch bleiben.Particularly advantageous permanently elastic sealing means have proven in practice, the even at a temperature of -50 ° C remain elastic.

Vorbeschichtete Kopfzünder können sofort mit der Geschoßhülle verschraubt oder bis zu mehreren Jahren bei Raumtemperatur eingelagert werden.Pre-coated head lighters can be bolted to the bullet shell or up to be stored for several years at room temperature.

Wie sich in der Praxis ebenfalls gezeigt hat, weisen dauerelastische Dichtmittel im Gewindespalt gute Dämpfungseigenschaften auf, so daß gegebenenfalls beim Transport der entsprechenden Munition auftretende Vibrationen nicht zum Lösen der Schraubverbindung führt.As has also been shown in practice, have permanently elastic sealant in the thread gap good damping properties, so that, if necessary, during transport of the corresponding Ammunition occurring vibrations not to loosen the screw leads.

Außerdem hat sich gezeigt, daß nach vollständigem Lösen der Schraubverbindung zwischen Geschoßhülle und Kopfzünder die zu verschraubenden Elemente je nach Produkt mehrmals wieder zusammengeschraubt werden können, ohne daß die Dichtwirkung verloren geht.It has also been found that after complete release of the screw between Projectile casing and head igniter the elements to be screwed depending on the product can be screwed together several times without losing the sealing effect goes.

Schließlich läßt sich bei Verwendung eines dauerelastischen Dichtmittels auch eine Umarbeitung bereits im Depot vorhandener, mit Heberingverschlußschrauben versehener Geschosse in Geschosse mit Kopfzünder auf einfache Weise realisieren. Denn während das Abdichten eines Kopfzünders mittels eines aushärtenden Dichtmittels voraussetzt, daß beide Gewinde sauber und fettfrei sein müssen und daher insbesondere nach Ausschrauben der Heberingverschlußschraube das stets am Mundlochgewinde befindliche Silikonfett auf relativ aufwendige Weise beseitigt werden muß (weil anderenfalls der Aushärtungsvorgang durch das Silikonfett beeinflußt werden kann), ist eine derartige Beseitigung des Silikonfettes im Falle der Verwendung eines dauerelastischen Dichtmittels nicht erforderlich. Vielmehr muß lediglich das Gewinde, auf welches das Dichtmittel aufgebracht werden soll (in der Regel das Außengewinde des Kopfzünders), sauber und fettfrei sein.Finally, when using a permanently elastic sealant can also be a makeover already in the depot existing, provided with lifting ring plugs bullets in projectiles with a detonator in a simple way. Because while that Sealing a Kopfzünders means of a curing sealant requires that both Thread must be clean and free of grease and therefore especially after unscrewing the lifting ring screw on the always located on the mouth hole thread silicone grease relatively complicated way must be eliminated (otherwise the curing process can be influenced by the silicone grease) is such elimination of the silicone grease in the case of using a permanently elastic sealant not required. Rather, only the thread on which the sealant is to be applied (usually the external thread of the detonator), clean and free of grease.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden anhand einer Figur erläuterten Ausführungsbeispiel.Further details and advantages of the invention will become apparent from the following a figure illustrated embodiment.

Die Fig. zeigt den vorderen Bereich eines drallstabilisierten mit 1 bezeichneten Artilleriegeschosses. Das Geschoß 1 umfaßt eine Geschoßhülle 2, in welcher sich Sprengstoff 3 befindet, und einen Kopfzünder 4. Der mit einem Außengewinde 5 versehene Kopfzünder 4 ist in ein Innengewinde (Mundlochgewinde) 6 der Geschoßhülle 2 eingeschraubt. Zwischen den Gewindegängen der beiden Gewinde 5, 6 ist ein dauerelastisches Dichtmittel 7 angeordnet.The figure shows the front portion of a spin-stabilized designated 1 artillery projectile. The projectile 1 comprises a projectile casing 2, in which explosives. 3 located and a head igniter 4. The provided with an external thread 5 head igniter 4 is screwed into an internal thread (mouth hole thread) 6 of the projectile casing 2. Between the threads of the two threads 5, 6 is a permanently elastic sealant. 7 arranged.

Wie der Fig. ebenfalls zu entnehmen ist, setzt sich der Kopfzünder 4 aus einer Zünderspitze 8 und einem Zünderheck 9 zusammen, welches eine Verstärkerladung 10 umschließt. Zünderheck 9 und Zünderspitze 8 sind über eine relativ schwache Gewindeverbindung 11 miteinander verbunden, die über eine Verdrehsicherung 12 gesichert ist.As the figure also shows, the head igniter 4 is made of an igniter tip 8 and an igniter tail 9 which encloses a booster charge 10. Igniter tail 9 and igniter tip 8 are connected via a relatively weak threaded connection 11th connected to each other, which is secured by a rotation 12.

Zur Herstellung des Geschosses 1 wird zunächst das dauerelastische Dichtmittel 7 in zähflüssiger Form auf das Außengewinde 5 des Kopfzünders 4 und/oder auf das Mundlochgewinde 6 der Geschoßhülle 2 aufgetragen. Dabei muß nur das Gewinde, das vorbeschichtet werden soll, sauber und fettfrei sein. Anschließend kann der vorbeschichtete Kopfzünder 4 dann sofort mit der Geschoßhülle 2 verschraubt werden. For the production of the projectile 1, the permanently elastic sealant 7 is first in viscous Mold on the external thread 5 of the Kopfzünders 4 and / or on the Mundlochgewinde 6 of the projectile casing 2 applied. Only the thread has to be pre-coated should be, clean and fat-free. Subsequently, the precoated Head igniter 4 are then bolted immediately to the projectile casing 2.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Geschoß, ArtilleriegeschoßProjectile, artillery projectile
22
Geschoßhülleprojectile casing
33
Sprengstoffexplosive
44
Kopfzündernose fuse
55
Außengewinde, GewindeExternal thread, thread
66
Innengewinde, Mundlochgewinde, GewindeInternal thread, mouth hole thread, thread
77
dauerelastisches DichtmittelPermanently elastic sealant
88th
Zünderspitzeigniter tip
99
Zünderheckfuze tail
1010
Verstärkerladungbooster charge
1111
Gewindeverbindungthreaded connection
1212
Verdrehsicherungtwist

Claims (3)

  1. Projectile having a projectile casing (2) and a nose fuze (4) which can be connected on the front face to the project tower casing (2) via a screw connection, with the nose fuze (4) having an external thread (5) and the projectile casing (2) having a nose fuze hole thread (6), characterized in that a permanently elastic sealing agent (7) is arranged between the external thread (5) and the nose fuze hole thread (6).
  2. Method for production of the projectile according to Claim 1, characterized in that the permanently elastic sealing agent (7) is applied to the external thread (5) of the nose fuze (4) and/or to the nose fuze hole thread (6) on the projectile casing (2) before the nose fuze (4) and the projectile casing (2) are screwed together.
  3. Method according to Claim 2, characterized in that, once the external thread (5) has been coated with a permanently elastic sealing agent (7), the nose fuze (4) is stored until it is used in accordance with the regulations.
EP02000639A 2001-01-31 2002-01-11 Projectile and method for manufacturing such a projectile Expired - Lifetime EP1229299B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001104023 DE10104023A1 (en) 2001-01-31 2001-01-31 Projectile comprises sleeve and detonation head connected to it via screw connection
DE10104023 2001-01-31

Publications (3)

Publication Number Publication Date
EP1229299A2 EP1229299A2 (en) 2002-08-07
EP1229299A3 EP1229299A3 (en) 2003-04-09
EP1229299B1 true EP1229299B1 (en) 2005-11-09

Family

ID=7672156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000639A Expired - Lifetime EP1229299B1 (en) 2001-01-31 2002-01-11 Projectile and method for manufacturing such a projectile

Country Status (4)

Country Link
EP (1) EP1229299B1 (en)
DE (2) DE10104023A1 (en)
IL (1) IL147896A0 (en)
ZA (1) ZA200200746B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203510A (en) * 1958-01-08 1960-01-19 Alsetex Watertight shutter device, safety
US3547036A (en) * 1968-05-29 1970-12-15 Jack Brothers Two-piece projectile and method of sealing same
AU602870B2 (en) * 1985-10-22 1990-11-01 Bae Systems Plc Explosive projectiles
EP0633448A1 (en) * 1993-06-10 1995-01-11 Ici Americas Inc. Anaerobic sealing of the interfaces between ammunition parts

Also Published As

Publication number Publication date
IL147896A0 (en) 2002-08-14
EP1229299A3 (en) 2003-04-09
DE10104023A1 (en) 2002-08-01
DE50204808D1 (en) 2005-12-15
EP1229299A2 (en) 2002-08-07
ZA200200746B (en) 2002-08-12

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