EP0227919B1 - Fusée d'impact pour projectile - Google Patents

Fusée d'impact pour projectile Download PDF

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Publication number
EP0227919B1
EP0227919B1 EP86115320A EP86115320A EP0227919B1 EP 0227919 B1 EP0227919 B1 EP 0227919B1 EP 86115320 A EP86115320 A EP 86115320A EP 86115320 A EP86115320 A EP 86115320A EP 0227919 B1 EP0227919 B1 EP 0227919B1
Authority
EP
European Patent Office
Prior art keywords
rotor
projectile
impact
slide
bore
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
EP86115320A
Other languages
German (de)
English (en)
Other versions
EP0227919A1 (fr
Inventor
Robert Dipl. Masch. Tech. Apothéloz
Georg Leutwyler
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
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0227919A1 publication Critical patent/EP0227919A1/fr
Application granted granted Critical
Publication of EP0227919B1 publication Critical patent/EP0227919B1/fr
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
    • F42C15/44—Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch
    • 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
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • F42C15/188—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier

Definitions

  • the object which is to be achieved with the present invention is to create a impact detonator which is capable of defusing itself if the projectile is not detonated immediately when it hits the target.
  • a bolt is preferably provided as a means for triggering the inhibiting mechanism, which locks the inhibiting mechanism in a first position, which releases the inhibiting mechanism in a second position and which, due to its inertia when the projectile is delayed by impact, shifts from the blocking position into the release position.
  • an igniter head 12 is attached to an igniter housing 10 of the impact igniter 11 by means of a thread 13.
  • the detonator head 12 is screwed into a floor (not shown) with the aid of a second thread 14.
  • a sleeve 16 with an amplifier charge 17 and with a dud insert 18 is fastened with the aid of a further thread 15.
  • An ignition pin 19 is slidably mounted in the ignition head 12, of which only the tip is indicated in the drawing. This ignition pin 19 is used to pierce a squib 20, which is located in a slide 21. This slide 21 can shift from the safety position shown in the direction of arrow A to its armed position, such that the squib 20 reaches the area of the firing pin 19.
  • a housing 22 is inserted, in which the essential organs of an impact detonator 11 are located, in particular an inhibitor mechanism 23, which ensures the safety of the detonator's fore pipe.
  • This escapement 23 means that the slide 21 can only move into its armed position when the projectile is no longer in the vicinity of the gun from which it was launched after the launch.
  • the detonator housing 10 has a central bore 24 in which an explosive core 25 is located. This explosive core 25 is ignited by the squib 20 and in turn ignites the booster charge 17 through the dud insert 18.
  • a trigger bolt 26 is slidably mounted in the primer housing 10.
  • This release bolt 26 is supported with its front end on the slide 21 as long as it is in its safety position.
  • the rear end of the release pin 26 protrudes into the dud insert 18.
  • the connection between the explosive core 25 and the booster charge 17 is interrupted as soon as the release bolt 26 slides out of the dud insert 18.
  • a rotor 28 in a housing 27 of the dud insert 18, which rotor can be rotated about an axis 29.
  • this rotor 28 there is an explosive core 30 which is arranged parallel to the axis 29. The upper end of this explosive core 30 protrudes from the rotor 28 and is surrounded by a sleeve 31.
  • a further explosive core 32 is arranged in the cylindrical housing 27, the axis of which coincides with the axis of the housing 27. In the position of the rotor 28 shown, the axes of the two explosive cores 30 and 32 also coincide. In this position, the explosive core 25 shown in FIG. 1 is able to ignite the booster charge 17 via the two explosive core 30 and 32.
  • a disk 33 which has the same diameter as the rotor 28 and is provided with a toothed segment 40.
  • the disc 33 is rigidly connected to the axis 29.
  • the two ends of the axis 29 are on the one hand in which he mentioned housing 27 and on the other hand rotatably mounted in a housing cover 34.
  • the rotor 28 is rotatably mounted at the bottom with a sleeve-like projection 35 in the housing 27 and at the top it is rotatably mounted about a pin 36 of the disk 33.
  • the axis 29 is surrounded by a helical spring 37, which is anchored with its lower end 38 in the housing 27 and with its upper end 39 in the disk 33.
  • This spring 37 is pretensioned and tends to pivot the disk 33 clockwise, ie in the direction of arrow B in FIG. 3.
  • the disc 33 has a bore 41 and the cover 34 has a bore 42, which are aligned with one another in the position of the disc 33 shown and through which the already mentioned release bolt 26 projects.
  • the prestressed spring 37 cannot rotate the disk 33 in the direction of arrow B.
  • this disk 33 also has a bent elongated hole 43 (FIG. 3) through which the sleeve 31 of the explosive core 30 projects.
  • the disk 33 is in engagement via the toothed segment 40 with a toothed gear transmission which consists of four toothed wheels 44, 45, 46 and 47 (see FIGS. 3 and 4), by means of which a restlessness 48 is driven.
  • the four gear wheels 44, 45, 46 and 47 are rotatably supported about axes 49, as is the restlessness 48.
  • FIGS. 3 and 4 there is also a securing bolt 50 in the rotor 28, which protrudes with its conical tip 51 into a bore 52 of the housing 27.
  • This securing bolt 50 is supported with its upper end opposite the tip 51 on the disk 33, but can be pushed into the elongated hole 43 so that the tip 51 can come out of the bore 52 to release the rotor 28 which is secured against rotation until the tip 51 protrudes into the bore 52.
  • the release pin 26 which can also be referred to as a sensor pin, has a groove 53 at its lower end.
  • the bore 41 of the disk 33 has a conical surface 54. 3, in the direction of arrow B, the conical surface 54 is pressed against the groove 53 of the release bolt 26, causing the sensor pin 26 to slide out of the bore 41 unintentionally is difficult.
  • the slide 21 with the squib 20 moves into its armed position. This shift takes place in a manner known per se and is therefore not described in more detail here.
  • the trigger bolt 26 is freely displaceable.
  • the deceleration or braking of the projectile caused by the air resistance is not sufficient to move the trigger pin 26 forward.
  • the braking or deceleration of the projectile is so great that the trigger pin 26 moves forward and completely falls out of the dud insert.
  • the spring 37 is now able to turn the disk 33 clockwise. This rotation of the disc 33 is slowed down by the restlessness 48 and the gears 44-47.
  • the toothed segment 40 disengages from the toothed wheel 44, so that the disk 33 can rotate further through an angle of approximately 90 °.
  • the edge 43a of the elongated hole 43 of the disk 33 abuts the sleeve 31 of the explosive core 30 after the disk 33 has been rotated through an angle of 90 °, as a result of which the rotor 28 is also rotated through an angle of 90 °.
  • the rotor 28 thus moves from its focus to the safety position.
  • the explosive core 30 in the rotor 28 is no longer in alignment with the explosive core 25 in the detonator housing 10 and the booster charge 17 (FIG. 1) can no longer be ignited unless it has already been ignited.
  • the firing pin 19 When the projectile hits the target, the firing pin 19 is immediately pushed against the squib 20, this is ignited and the booster charge 17 is ignited via the firing chain, consisting of the three explosive cores 25, 30 and 32, long before the rotor 28 of the dud insert 18 was turned to its safety position in the manner described.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Air Bags (AREA)

Claims (4)

1. Fusée d'impact (11 ) pour un projectile, fusée comportant:
- un boîtier de fusée (10) présentant un perçage (24) s'étendant dans la direction longitudinale, perçage contenant une âme de charge explosive (25);
- un tiroir (21 ) coulissant dans le boîtier de fusée (10) transversalement à la direction longitudinale pour passer d'une position de sûreté à une position armée;
- un percuteur (19) pour percuter une pastille amorce (20) lorsque le tiroir (21 ) occupe sa position armée;
- une charge amplificatrice (17) pour déclencher le projectile, cette charge pouvant être allumée par l'intermédiaire de l'âme de charge explosive (25) percée dans le perçage (24) du boîtier de fusée (10) à partir de la pastille amorce (20),

caractérisée en ce que:
- une garniture de raté (18) est placée entre l'âme de charge explosive (25) et la charge amplificatrice (17), cette garniture comportant:
- un rotor (28) qui peut passer d'une position armée à une position de sûreté;
- un mécanisme retardateur (44-48) qui après une durée de temporisation déplace le rotor (28) de sa position armée à sa position de sûreté;
- des moyens (26) qui déclenchent le mécanisme retardateur par la décélération à l'impact.
2. Fusée d'impact selon la revendication 1, caractérisée en ce que le moyen de déclenchement du mécanisme retardateur (44-48) est un goujon de déclenchement (26) qui bloque le mécanisme retardateur (44-48) lorsqu'il occupe sa première position et qui libère ce mécanisme (44-48) lorsqu'il occupe sa deuxième position et qui sous l'effet de son inertie lors de la décélération à l'impact du projectile passe de sa position de blocage à sa position de libération.
3. Fusée d'impact selon la revendication 2, caractérisée en ce que le goujon de déclenchement (26) s'appuie par son extrémité contre le tiroir (21 ) occupant la position de sûreté et par son autre extrémité le goujon pénètre dans la garniture de raté (18) pour bloquer le rotor (28) en rotation.
4. Fusée d'impact selon la revendication 3, caractérisée en ce qu'à son extrémité inférieure, le goujon de déclenchement (26) comporte une rainure (53) qui pénètre dans un perçage (41) d'une rondelle (33) du rotor (28) et s'appuie contre la surface conique (54) de ce perçage pour compliquer la sortie du goujon de déclenchement (26) hors de la garniture de raté (18).
EP86115320A 1985-12-17 1986-11-05 Fusée d'impact pour projectile Expired EP0227919B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5379/85 1985-12-17
CH537985 1985-12-17

Publications (2)

Publication Number Publication Date
EP0227919A1 EP0227919A1 (fr) 1987-07-08
EP0227919B1 true EP0227919B1 (fr) 1989-05-03

Family

ID=4292575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115320A Expired EP0227919B1 (fr) 1985-12-17 1986-11-05 Fusée d'impact pour projectile

Country Status (5)

Country Link
US (1) US4726294A (fr)
EP (1) EP0227919B1 (fr)
CA (1) CA1287260C (fr)
DE (1) DE3663196D1 (fr)
NO (1) NO161584C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO891579L (no) * 1988-05-16 1989-11-17 Oerlikon Buehrle Ag Blindgjengerinnlegg for en prosjektiltenner.
US6050195A (en) * 1998-12-03 2000-04-18 The United States Of America As Represented By The Secretary Of The Army Self neutralizing fuze
DE10000177A1 (de) * 2000-01-05 2001-07-12 Junghans Feinwerktechnik Gmbh Zündeinrichtung, insbesondere für eine Mörsergranate
GB2388419B (en) * 2002-01-08 2005-04-06 Harry Slack Safety mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107618A (en) * 1961-10-27 1963-10-22 James L Vanover De-arming device
CH594869A5 (fr) * 1975-06-27 1978-01-31 Oerlikon Buehrle Ag
BE859035A (fr) * 1976-11-05 1978-01-16 Sormel Sa Dispositif de securite a volet pour chaine pyrotechnique
IT1135535B (it) * 1980-03-27 1986-08-27 Sarmac Sa Spoletta di fondello,in particolare per granata da fucile
DE3108659C2 (de) * 1981-03-07 1985-01-03 Gebrüder Junghans GmbH, 7230 Schramberg Sicherungsvorrichtung für Zünder von drallfreien bzw. drallarmen Geschossen
FR2512195B1 (fr) * 1981-09-03 1985-06-14 France Etat Dispositif de securite et d'armement pour l'amorcage de charges sous-marines
FR2563622B1 (fr) * 1984-04-26 1987-10-02 France Etat Armement Dispositif de securite et d'armement pour engins explosifs

Also Published As

Publication number Publication date
CA1287260C (fr) 1991-08-06
EP0227919A1 (fr) 1987-07-08
NO864878L (no) 1987-06-18
DE3663196D1 (en) 1989-06-08
NO161584C (no) 1989-08-30
NO161584B (no) 1989-05-22
US4726294A (en) 1988-02-23
NO864878D0 (no) 1986-12-04

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