EP0360187A2 - Dispositif de sécurité pour la fusée d'un projectile à rotation - Google Patents

Dispositif de sécurité pour la fusée d'un projectile à rotation Download PDF

Info

Publication number
EP0360187A2
EP0360187A2 EP89117207A EP89117207A EP0360187A2 EP 0360187 A2 EP0360187 A2 EP 0360187A2 EP 89117207 A EP89117207 A EP 89117207A EP 89117207 A EP89117207 A EP 89117207A EP 0360187 A2 EP0360187 A2 EP 0360187A2
Authority
EP
European Patent Office
Prior art keywords
retaining ring
rotor
detonator
projectile
housing
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
EP89117207A
Other languages
German (de)
English (en)
Other versions
EP0360187B1 (fr
EP0360187A3 (fr
Inventor
Adolf Bankel
Hans Strauss
Stephan Kerk
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0360187A2 publication Critical patent/EP0360187A2/fr
Publication of EP0360187A3 publication Critical patent/EP0360187A3/fr
Application granted granted Critical
Publication of EP0360187B1 publication Critical patent/EP0360187B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F42C15/20—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 safety device for a swirl projectile detonator according to the preamble of claim 1.
  • Malfunctions can result from the uneven masses of the U-shaped retaining ring.
  • the launch acceleration and the swirl can tilt the retaining ring during the return and opening stroke in the radial groove on the housing so that the legs prevent the rotor from absorbing the swirl necessary for the function.
  • the retaining ring can jam in its rearward position due to an unintentional impact and lock the rotor securely. In both cases, explosive unexploded ordnance exists after the launch.
  • the object of the invention is to provide a rotor fuse for a swirl projectile detonator which functions reliably when the swirl projectile is fired, in which the rotor is released and which also guarantees the counteraction of the rotor after rough handling.
  • Essential for the invention are the retaining ring which bears against the rotor without radial preload, the ease of installation of the retaining ring on the rotor and the retaining ring which is freely movable axially in the space provided in the igniter housing due to the compression spring provided.
  • the retaining ring has a small gap in the centripedal and in the centrifugal direction to the respective contact surfaces. This avoids material fatigue, as is the case, for example, with the retaining rings according to the prior art. Malfunctions in this regard cannot therefore occur.
  • the retaining ring which is freely movable axially against spring force, allows the rotor to be countered, for example during drop tests or impact loads when handling a projectile.
  • the invention provides the necessary functional reliability with regard to two triggers Criteria, namely 1. Securing the floor acceleration and 2. Securing the twist.
  • the almost closed retaining ring supports the rotor on the igniter housing in the radial direction.
  • the inertial forces of the rotor are derived from the retaining ring in the igniter housing 7.
  • Adverse deformations of the retaining ring cannot occur due to its relatively high section modulus. Such deformations can not be avoided in the U-shaped retaining ring according to DE-OS 20 09 988 due to its substantially low resistance moments in its longitudinal direction. Such a deformation of the known retaining ring can lead to the rotor not being unsecured despite the tripping criteria being present.
  • a securing device 1 provides that a retaining ring 2 is centered on the one hand by a conical compression spring 3 in an annular groove 4 of a rotor 5, and on the other hand in the radial directions by the annular groove 4 and a wall 6 of an igniter housing 7 via annular gaps 8.
  • the annular groove 4 has a bottom 10 and an end face 11.
  • the rotor 5 has a detonator 15 and a fixing cone 16 for an axially movable securing sleeve 17 in a known manner.
  • the igniter housing 7 mounts the securing sleeve 17 and an ignition needle 18. Furthermore, the igniter housing 7 mounts the rotor 5 already described via a spherical recess 20. As a counter bearing to this a corresponding spherical recess 21 is provided in a charge housing 22. These recesses 20, 21 form a slide bearing for the rotor 5.
  • the compression spring 3 fixes the rotor 5 in the recess 20 via the retaining ring 2. A further additional storage is not provided in a recess 8 of the igniter housing 7.
  • the retaining ring 2 according to FIGS. 2 and 5 is provided with a keyway profile, as a result of which there are inner support tabs 25 with recesses 26 between them.
  • the support tabs 25 have curved support surfaces 27 corresponding to the annular groove 4.
  • a ring 28 carries the support tabs 25, the ring 28 being separated by a slot 29.
  • the detonator housing 7 has a radial groove 30, the bottom 31 of which is deeper than the wall 6 of the detonator housing by the distance 32.
  • the two end faces 33, 35 are so far apart that the retaining ring 2 can be accommodated with ample axial play.
  • An inclined surface 34 optionally serves as an adjustment aid for the expanding retaining ring 2.
  • a recess 40 with a peripheral edge 41 is provided on the charge housing 22 for receiving the base 48 of the compression spring 3. Furthermore, the charge housing 22 has an amplifier charge in a manner not shown.
  • the compression spring 3 rests with its head portion 9 on a surface 12 of the retaining ring 2.
  • the base 48 of the compression spring 3 is supported by the charge housing 22.
  • the charge housing 22 is connected to the igniter housing 7 via a threaded connection 23.
  • the securing device 1 of a swirl igniter (not shown further) reacts to the launch acceleration acting in the direction of arrow 50 by an axial stroke of the retaining ring 2 against the force 3.
  • the compression spring 3 according to FIG. 3.
  • the retaining ring 2 is in its outermost axial stroke position, since the compression spring 3 cannot be compressed any further. In this position, the retaining ring 2 is aligned with the radial groove 30.
  • the retaining ring 2 can expand into the radial groove 30, as shown in FIG.
  • the retaining ring 2 consists of a beryllium bronze. This material ensures that the retaining ring 2 lies completely against the bottom 31 of the radial groove 30 due to the centrifugal forces acting mainly on the support tabs 25.
  • the webs 14 lying between the support tabs 25 are plastically, that is, permanently deformed.
  • the rotor 5 released by the holding ring 2 aligns itself in the position shown in FIG. 4 due to its center of gravity, the securing sleeve 17 being pushed back by the fixing cone 16.
  • the rotor 5 is locked in the focus shown in this figure by means not shown.
  • the compression spring 3 places the retaining ring 2 on the end face 33.
  • the ignition needle 18 strikes the detonator 15 in a known manner. Its ignition energy then initiates a transfer charge. If a shock is exerted on the securing device 1 according to arrow 50 in FIG. 3 during a drop test or rough handling, the retaining ring 2 lifts off from the rotor 5 in accordance with FIG. 3 and, however, becomes the one from FIG. 1 again after the impact Assume the visible position on the rotor 5. A possible axial offset of the bore diameter 45 to the diameter 46 of the annular groove 4 is avoided by the almost identical pin diameter 47 of the charge housing 22.
  • the securing sleeve 17 ensures that the rotor 5 remains in the safe position according to FIG. 1 in the phase in which the retaining ring 2 is lifted off the rotor 5.
  • the spring-loaded mounting of the rotor 5 by the compression spring 3 is also advantageous.
  • the compression spring 3 creates a gap 49 in that the rotor 5 is pressed into the recess 20 in the igniter housing 7.
  • the rotor 5 has the possibility of a spring-damped positional offset within the recess 8 due to the compression spring 3 and the gap 49.
  • the ignition threshold of the detonator 15 in the case of shock loads is thus considerably lower than in the case of detonators according to the prior art.
  • Suitable materials for the retaining ring 2 are aluminum or steel.
  • the required material properties are high breaking strength and high toughness.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP89117207A 1988-09-20 1989-09-18 Dispositif de sécurité pour la fusée d'un projectile à rotation Expired - Lifetime EP0360187B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831863A DE3831863A1 (de) 1988-09-20 1988-09-20 Sicherungseinrichtung fuer einen drallgeschosszuender
DE3831863 1988-09-20

Publications (3)

Publication Number Publication Date
EP0360187A2 true EP0360187A2 (fr) 1990-03-28
EP0360187A3 EP0360187A3 (fr) 1992-01-08
EP0360187B1 EP0360187B1 (fr) 1995-04-19

Family

ID=6363294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117207A Expired - Lifetime EP0360187B1 (fr) 1988-09-20 1989-09-18 Dispositif de sécurité pour la fusée d'un projectile à rotation

Country Status (3)

Country Link
US (1) US4995317A (fr)
EP (1) EP0360187B1 (fr)
DE (2) DE3831863A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689972A1 (fr) * 1992-04-14 1993-10-15 Manurhin Defense Dispositif de sécurité et d'armement pour fusée de projectile comportant un moyen anti-vibratoire.
EP0724132A1 (fr) * 1995-01-30 1996-07-31 Manurhin Defense Dispositif de sécurité et d'armement pour fusée de projectile
DE19728412A1 (de) * 1997-07-03 1999-01-07 Diehl Stiftung & Co Sicherungsvorrichtung für eine Drallgeschoß-Zündeinrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5275107A (en) * 1992-06-19 1994-01-04 Alliant Techsystems Inc. Gun launched non-spinning safety and arming mechanism
US5271327A (en) * 1992-06-19 1993-12-21 Alliant Techsystems Inc. Elecro-mechanical base element fuze
ES2135987B1 (es) * 1995-04-04 2000-05-16 Fabricaciones Extremenas S A F Mecanismo de seguridad y armado para espoletas en proyectiles giroestabilizados.
US5693906A (en) * 1995-09-28 1997-12-02 Alliant Techsystems Inc. Electro-mechanical safety and arming device
DE102005003942B4 (de) * 2005-01-28 2007-04-12 Junghans Feinwerktechnik Gmbh & Co. Kg Sicherungseinrichtung für einen Drallgeschosszünder
DE102005029326B4 (de) * 2005-06-24 2007-04-05 Junghans Feinwerktechnik Gmbh & Co. Kg Sicherungseinrichtung für einen Drallgeschosszünder mit einem kugelartigen Rotor
DE102022106883A1 (de) 2022-03-23 2023-09-28 Rheinmetall Air Defence Ag Sicherungseinheit für einen Zünder, Verwendung der Sicherungseinheit und Verfahren zur Aktivierung eines Zünders mit dieser Sicherungseinheit
US12180960B2 (en) 2023-05-15 2024-12-31 Spherical Rotors Inc. Rotary positive displacement device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397640A (en) * 1966-10-28 1968-08-20 Gen Electric Fuze with improved time delay and self-destruct mechanism
US3636880A (en) * 1968-12-13 1972-01-25 Honeywell Inc Control apparatus
US3608494A (en) * 1969-03-05 1971-09-28 Gen Electric Time delay fuse
US3595169A (en) * 1969-09-18 1971-07-27 Gen Electric Time delay fuze
DE2539750C3 (de) * 1975-09-06 1980-06-19 Diehl Gmbh & Co, 8500 Nuernberg Sicherungseinrichtung für einen Drallgeschoßzünder
DE3262029D1 (en) * 1981-06-30 1985-03-07 Oerlikon Buehrle Ag Safety means for a fuze of a spin-stabilised projectile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689972A1 (fr) * 1992-04-14 1993-10-15 Manurhin Defense Dispositif de sécurité et d'armement pour fusée de projectile comportant un moyen anti-vibratoire.
EP0566469A1 (fr) * 1992-04-14 1993-10-20 Manurhin Defense Dispositif de sécurité et d'armement pour fusée de projectile comportant un moyen anti-vibratoire
EP0724132A1 (fr) * 1995-01-30 1996-07-31 Manurhin Defense Dispositif de sécurité et d'armement pour fusée de projectile
FR2730051A1 (fr) * 1995-01-30 1996-08-02 Manurhin Defense Dispositif de securite et d'armement pour fusee de projectile
DE19728412A1 (de) * 1997-07-03 1999-01-07 Diehl Stiftung & Co Sicherungsvorrichtung für eine Drallgeschoß-Zündeinrichtung

Also Published As

Publication number Publication date
DE3831863A1 (de) 1990-03-22
DE58909183D1 (de) 1995-05-24
EP0360187B1 (fr) 1995-04-19
US4995317A (en) 1991-02-26
EP0360187A3 (fr) 1992-01-08

Similar Documents

Publication Publication Date Title
EP0360187B1 (fr) Dispositif de sécurité pour la fusée d'un projectile à rotation
DE698264C (de) Allseitsaufschlagzuender
DE2907309C2 (de) Aus einem Geschoß auszustoßendes Tochtergeschoß
DE2305677C2 (de) Sicherungsvorrichtung für einen Detonator eines Minenzünders
DE2550093C3 (de) Beharrungszünder für Drallgeschosse mit Selbstzerlegereinrichtung
DE3149346C2 (fr)
EP0360186B1 (fr) Dispositif de sécurité pour la fusée d'un projectile à rotation
DE2838381C2 (de) Sicherheitsvorrichtung für Zündvorrichtungen
DE1750927A1 (de) Schalter zur Betaetigung von Kontakten,Zuendern und anderen Vorrichtungen sowie mit diesem ausgeruesteter Zuender fuer Geschosse od.dgl.
DE102005003942B4 (de) Sicherungseinrichtung für einen Drallgeschosszünder
DE69305907T2 (de) Sicherheits- und Schärfvorrichtung für Zünder von Geschossen mit einem Erschütterungsschutzmittel
DE3119369C2 (de) Beharrungszünder für Drallgeschosse mit Selbstzerlegereinrichtung
EP0042957A2 (fr) Fusée pour projectiles à rotation
EP0104138B1 (fr) Dispositif pour armer et neutraliser une fusée électrique pour munition
DE2400947C3 (de) Sicherungs- und Entsicherungsvorrichtung für GeschoDzünder
DE4127023C2 (de) Treibladungsanzünder mit einem durch eine Feder vorgespannten Schlagbolzen
DE69605332T2 (de) Vorrichtung zum Sichern und Schärfen des Zünders eines Geschosses
CH665021A5 (de) Drallgeschosszuender.
DE2008157C3 (de) Hohlladung
EP0267407B1 (fr) Dispositif de sureté pour l'amorce d'une tête de projectile
DE2453267C3 (de) Zündvorrichtung für ein Explosivgeschoß
DE1946991A1 (de) Hohlladung
DE3344009A1 (de) Aufschlagzuender fuer bombletts
AT227574B (de) Aufschlagzünder
DE1167703B (de) Aufschlagzuender

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB NL SE

17P Request for examination filed

Effective date: 19911202

17Q First examination report despatched

Effective date: 19930810

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19950419

REF Corresponds to:

Ref document number: 58909183

Country of ref document: DE

Date of ref document: 19950524

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950615

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990728

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990913

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19990928

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991124

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000918

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000929

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000918

EUG Se: european patent has lapsed

Ref document number: 89117207.4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST