EP2941620B1 - Mécanisme d'autodestruction pour une fusée - Google Patents

Mécanisme d'autodestruction pour une fusée Download PDF

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Publication number
EP2941620B1
EP2941620B1 EP13814482.9A EP13814482A EP2941620B1 EP 2941620 B1 EP2941620 B1 EP 2941620B1 EP 13814482 A EP13814482 A EP 13814482A EP 2941620 B1 EP2941620 B1 EP 2941620B1
Authority
EP
European Patent Office
Prior art keywords
spring
self
ammunition
mass
destruction device
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.)
Active
Application number
EP13814482.9A
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German (de)
English (en)
Other versions
EP2941620A1 (fr
Inventor
Kolja Garber
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
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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP2941620A1 publication Critical patent/EP2941620A1/fr
Application granted granted Critical
Publication of EP2941620B1 publication Critical patent/EP2941620B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14—Double fuzes; Multiple fuzes
    • F42C9/16—Double fuzes; Multiple fuzes for self-destruction of ammunition
    • F42C9/18—Double fuzes; Multiple fuzes for self-destruction of ammunition when the spin rate falls below a predetermined limit, e.g. a spring force being stronger than the locking action of a centrifugally-operated lock

Definitions

  • the invention deals with the safety enhancement of modern ammunition, such as a 40mm impact ammunition, by incorporating a mechanical self-destructor into the munition.
  • This is characterized by a simple structure and consists of a rotational spring, a lockable body and a cooperating with this body spring. The body is locked by a lock and a spring-supported mass.
  • the applicant offers such ammunition as low-, medium- and high-velocity cartridges, which stand out due to their high precision and reliability under all climatic conditions ( http://www.rheinmetall-defence.de/en/rheinmetall defense / systems and products / weapons and ammunition / infant ry / 40mm ammunition / index.php).
  • An important safety requirement of such ammunition is to reduce the likelihood of a sharp detonator, etc., ie to prevent ignition if this is undesirable.
  • self-decomposition devices or mechanisms are additionally integrated into the ammunition. These are already known from various ammunition and can be performed electronically, pyrotechnic or mechanical.
  • An electronic fuse device for an igniter of a projectile is known.
  • Another electronic security device discloses the WO 2011/072774 A1 .
  • a safety device for a detonator of a projectile with a rotor for breaking a detonating chain describes the DE 20 2009 008 861 U1 .
  • the DE 199 19 001 A1 specifies a pyrotechnic self-destructor for an ammunition. Mechanical self-destructors are often based on the incorporation of balls or ball packages, which are accelerated backwards by the launch and are forced outward by rotation so as to maintain the firing mechanism in a biased position.
  • US 6,142,080 A discloses an ammunition device having a head igniter, comprising a lockable body and a first spring cooperating with the body, a lock, a spring-supported mass, and a second spring cooperating with said mass, wherein the device is configured to accelerate the ammunition the body is accelerated downwards against the direction of acceleration and thereby the first spring is tensioned.
  • the invention has the object to show a self-decomposition device with which the aforementioned disadvantages are avoided.
  • the invention is based on the idea to be able to implement or implement a mechanical self-decomposition device also later in the ammunition.
  • the set consists of, among other things, a setback body, a setback spring and a kind of locking / locking pin.
  • the rotation spring itself can also the triggering threshold, at which rotational speed of the igniter, the self-decomposition is activated, are set.
  • the locking pin locks the body until it falls below the adjustable speed of rotation of the igniter. This is tunable with the spring force of the rotary spring. With falling below the rotational speed of the body is then unlocked without loss of setback spring energy.
  • the setback body can also be used as a setback backup. It is also advantageous that retrofitting is possible in the case of detonators without a self-destructing device, but also in the case of detonators with pyrotechnic self-decomposition.
  • Fig. 1 shows a self-decomposition device 10 according to the idea of the invention.
  • the self-decomposition device 10 here preferably consists of a rotational spring 2, a body 3 and a spring 4 cooperating with this body 3.
  • the self-decomposition device 10 may be enclosed by an upper housing 1 and a lower housing 5. This variant is always to be preferred if retrofitting of the self-decomposition device 10 is provided.
  • 6 denotes a spring mass and 7 a rotation lock (eg locking pin).
  • Indicated at 12 is a (head) fuze ammunition 11th
  • the self-decomposition device 10 cooperates with a rotor A with a detonator ( Fig. 2 ).
  • a rotor A is pivoted from securing to the shaft position.
  • the rotation lock 7 is moved back to the original position. This is associated with the release of the locking of the body 3, which is accelerated by the spring 4 upwards. By the movement of the body 3 upwards this can drive the rotor A with a detonator at the head detonator or a tapping needle (not shown in detail) at the bottom igniter up, ignite this.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)

Claims (6)

  1. Système d'autodestruction (10) pour une munition (11) avec une amorce de tête et/ou de culot (12), présentant un corps verrouillable (3) ainsi qu'un premier ressort (4) coopérant avec ce corps (3), un verrouillage (7), une masse à ressort (6) ainsi qu'un deuxième ressort (2) coopérant avec cette masse (6), dans lequel le système d'autodestruction (10) est configuré de telle manière que
    a. lors de l'accélération de la munition (11), le corps soit accéléré vers le bas à l'inverse de la direction d'accélération, que le premier ressort (4) soit ainsi tendu et que, du fait de la rotation de la munition (11), le verrouillage (7) soit repoussé dans la masse à ressort (6) contre la force élastique du deuxième ressort (2), de telle manière que le corps (3) soit verrouillé, et
    b. lors de la descente en dessous d'une vitesse de rotation déterminée de la munition (11), il se produise un déverrouillage, de telle manière que
    c. lors de la descente en dessous de la vitesse de rotation déterminée, la force élastique du deuxième ressort (2) soit supérieure à la force de rotation agissant sur le verrouillage (7) et la masse (6), et qu'ainsi
    d. le deuxième ressort (2) déplace la masse (2) et le verrouillage (7) dans la position initiale, et dans lequel
    e. le corps (3) déplace sous la force élastique du premier ressort (4) un rotor (A) avec un détonateur ou une aiguille de percuteur dans la direction de l'accélération initiale de la munition (11) et mette à feu le détonateur ou une amorce.
  2. Système d'autodestruction selon la revendication 1, caractérisé en ce que lors de l'accélération de la munition (11), le corps (3) est accéléré vers le bas à l'inverse de la direction d'accélération contre la force du ressort (4), dans lequel le corps (3) libère le rotor (A) contenant le détonateur et le rotor (A) est basculé d'une position de sécurité à une position de tir.
  3. Système d'autodestruction selon la revendication 1 ou 2, caractérisé en ce que par la rotation de la munition (11) le verrouillage (7) est repoussé dans la masse (6) contre la force élastique du ressort (2) coopérant avec la masse (6).
  4. Système d'autodestruction selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le système d'autodestruction (10) est entouré par un boîtier supérieur (1) et un boîtier inférieur (5).
  5. Système d'autodestruction selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'un seuil de déclenchement est réglé au moyen du ressort (2), auquel la vitesse de rotation de l'amorce (12) entraîne l'activation de l'autodestruction.
  6. Système d'autodestruction selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le corps (3) fait en même temps office de sécurité pour le système d'autodestruction.
EP13814482.9A 2013-01-07 2013-12-11 Mécanisme d'autodestruction pour une fusée Active EP2941620B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013000050.5A DE102013000050B3 (de) 2013-01-07 2013-01-07 Selbstzerlegungsmechanimus für einen Zünder
PCT/EP2013/076253 WO2014106565A1 (fr) 2013-01-07 2013-12-11 Mécanisme d'autodestruction pour une fusée

Publications (2)

Publication Number Publication Date
EP2941620A1 EP2941620A1 (fr) 2015-11-11
EP2941620B1 true EP2941620B1 (fr) 2017-09-13

Family

ID=49885215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13814482.9A Active EP2941620B1 (fr) 2013-01-07 2013-12-11 Mécanisme d'autodestruction pour une fusée

Country Status (3)

Country Link
EP (1) EP2941620B1 (fr)
DE (1) DE102013000050B3 (fr)
WO (1) WO2014106565A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022002462A1 (fr) 2020-07-02 2022-01-06 Dixi Microtechniques Fusee comportant un dispositif d'autodestruction pour projectile giratoire

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE551134A (fr) * 1956-01-24
US3366059A (en) * 1967-01-09 1968-01-30 Avco Corp Fuze for spin stabilized projectiles
DE3835888A1 (de) * 1988-10-21 1990-04-26 Rheinmetall Gmbh Granatengeschoss
DE4421353C2 (de) * 1994-06-17 1998-02-05 Junghans Gmbh Geb Selbstneutralisierender Bombletzünder
DE19726951C2 (de) * 1997-06-25 1999-12-16 Rheinmetall W & M Gmbh Zünder für ein Drallgeschoß mit im Verriegelungsbolzen für den Detonatorträger angeordneter Selbstzerlegereinheit
US6145439A (en) * 1998-01-14 2000-11-14 General Dynamics Armament Systems, Inc. RC time delay self-destruct fuze
US6142080A (en) * 1998-01-14 2000-11-07 General Dynamics Armament Systems, Inc. Spin-decay self-destruct fuze
DE19919001A1 (de) * 1999-04-27 2000-11-09 Junghans Gmbh Geb Pyrotechnischer Selbstzerleger für Munition
DE10040800A1 (de) * 2000-08-21 2002-03-28 Rheinmetall W & M Gmbh Bombletzünder mit Selbstzerlegung
DE102006047552A1 (de) * 2006-10-07 2008-04-24 Junghans Microtec Gmbh Sicherungsvorrichtung für den Zünder eines Projektiles
DE202009008861U1 (de) * 2009-06-27 2010-11-11 Junghans Microtec Gmbh Sicherungseinrichtung für ein Geschoss
DE102009058718B4 (de) * 2009-12-17 2011-12-08 Junghans Microtec Gmbh Sicherungseinrichtung für einen Zünder eines Geschosses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022002462A1 (fr) 2020-07-02 2022-01-06 Dixi Microtechniques Fusee comportant un dispositif d'autodestruction pour projectile giratoire
FR3112202A1 (fr) 2020-07-02 2022-01-07 Dixi Microtechniques Fusee comportant un dispositif d'autodestruction pour projectile giratoire

Also Published As

Publication number Publication date
EP2941620A1 (fr) 2015-11-11
WO2014106565A1 (fr) 2014-07-10
DE102013000050B3 (de) 2014-01-30

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