EP0155449B1 - Fusée de projectile à percussion - Google Patents

Fusée de projectile à percussion Download PDF

Info

Publication number
EP0155449B1
EP0155449B1 EP19850100414 EP85100414A EP0155449B1 EP 0155449 B1 EP0155449 B1 EP 0155449B1 EP 19850100414 EP19850100414 EP 19850100414 EP 85100414 A EP85100414 A EP 85100414A EP 0155449 B1 EP0155449 B1 EP 0155449B1
Authority
EP
European Patent Office
Prior art keywords
priming
priming cap
cap
squib
firing pin
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
EP19850100414
Other languages
German (de)
English (en)
Other versions
EP0155449A1 (fr
Inventor
Robert 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
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication of EP0155449A1 publication Critical patent/EP0155449A1/fr
Application granted granted Critical
Publication of EP0155449B1 publication Critical patent/EP0155449B1/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
    • 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
    • F42C9/142—Double fuzes; Multiple fuzes combined time and percussion fuzes in which the timing is caused by combustion
    • 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
    • F42C15/184—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 slidable carrier

Definitions

  • the invention relates to an impact detonator for projectiles, containing a detonator housing with two squibs, with a firing pin for piercing one of the said squibs after the impact in the target, with a movable squib carrier which can be moved into focus and which ensures that the pipe is secure, ie. H. ignition of the projectile near the weapon prevented.
  • both squibs are located in a cross slide.
  • a second firing pin can only pierce the second squib after a delay time, the second firing pin being pushed against the second squib by a prestressed spring.
  • the movement of the cross slide is controlled by an escapement consisting of a number of gears and a restlessness.
  • the cross slide is pushed by a spring from its safety position into its focus position. Ignition of one or the other of the squib is only possible when the slide has been completely moved from the safety position to the arming position, since only then can the tip of the firing pin hit the squib.
  • the object that is to be achieved with the present invention consists primarily in the creation of a impact detonator with greater certainty in unexploded ordnance and secondly in the creation of a impact detonator with an increased probability of functioning.
  • the object is achieved in that only one of the two squibs is located in the squib holder, the other squib is located outside a squib in the squib case and in that the squib carrier has an opening through which the second squib passes when the second squib is pierced. This ensures that the second squib can also be pierced if the squib holder has not shifted sufficiently into its focus position, since the opening in the squib holder is sufficiently large.
  • the first squib will preferably be in the focus position of the squib holder between an explosive core and the second squib, and the explosive core is ignited by the second squib exclusively via the first squib.
  • a third squib can preferably be arranged in a fixed manner in the squib housing, with a third squib for piercing the third squib.
  • an igniter head 2 is screwed to an igniter housing 1 at the front and an amplifier charge 3 at the rear.
  • an impact head 4 is slidably arranged, to which a central instantaneous ignition pin 5 is attached.
  • a spring 6 is supported on the one hand on the impact head 4 and on the other hand on a guide sleeve 7 fastened in the detonator head.
  • a bearing body 8 inserted into the detonator housing 1 contains an inhibiting mechanism 9 which delays the displacement of a squib support, which can be designed as a cross slide 10 or as a rotor, from its illustrated securing position to the arming position, thereby ensuring that the impact detonator is safe in the front pipe.
  • the detonator housing 1 contains a second bearing body 11, which has a groove with a rectangular cross section, in which the cross slide 10 is displaceably guided transversely to the detonator axis.
  • the cross slide 10 contains a first squib 12 which can be pierced from the front by the instantaneous ignition pin 5 and the bearing body 11 contains a second squib 13 according to FIG. 2 which can be pierced from the rear by a delay firing pin 14.
  • the position of the two squibs 12 and 13 with respect to the squib axis is shown in FIG. 3.
  • the axis of a blind bore 15 coincides with the igniter axis in the securing position of the cross slide 10.
  • a spring 16 (Fig. 3), on the one hand on a bolt 17 and supported on the other hand on the cross slide 10, endeavors to move the cross slide 10 into its focus. However, this is prevented before firing by a locking bush 18 (FIG. 1) which is slidably mounted in a longitudinal bore 19 of the igniter housing 1 and is pressed forward by a spring 20 into the locking position. In this locking position, it is blocked by balls 21 which engage in an annular groove 22 in the longitudinal bore 19 of the cylinder housing 1 and are held by a locking bolt 23 which is displaceably arranged in the interior of the locking bush 18.
  • the cross slide 10 has on one side a rack 25 which engages in a pinion 26 which is inserted into the bearing body 11.
  • the pinion 26 is engaged via a gear 27 with a flap body, not shown.
  • This gear 27 forms, together with the fluttering body, the escapement 9, which delays the displacement of the cross slide 10 from its securing position, which results in safety of the foreline.
  • An explosive core 28 extending from the rear edge of the cross slide 10 to the booster charge 3 is inserted in a central longitudinal bore of the ignition body 1 and a device for delayed ignition is contained in a bore 29 parallel to this explosive core 28 (FIG. 2).
  • a cylindrical body 30 is located in this bore 29 and is fastened with its lower end in this bore 29.
  • the upper end of the cylindrical body 30 has an annular groove 31 on its circumference.
  • a sleeve 32 displaceable in the bore 29 surrounds the cylindrical body 30 and is supported in its rest position on a foot 33 of the body 30.
  • a spring 35 is located between a shoulder 34 on the inner wall of the sleeve 32 and the rear end of the delay pin 14.
  • the front end of the cylindrical body 30 projects into a bore in the ignition pin 14.
  • Locking body 36 prevent the ignition pin 14 from being advanced by the spring 35.
  • This locking body 36 protrude on the one hand into the annular groove 31 of the cylindrical body 30 and on the other hand in radial bores at the rear end of the delay firing pin 14 and are supported on the inner wall of a sleeve 37 which has the same diameter as the sleeve 32.
  • the front, tapered part of the front sleeve 37 protrudes up to the cross slide 10 and surrounds the retarding ignition pin 14 in the position shown.
  • the rear, bevelled end face of the sleeve 37 lies against a correspondingly beveled end face at the front end of the sleeve 32.
  • the locking body 36 is pressed against the inner wall of the sleeve 37 by the spring 35, whereby an unintentional displacement of the sleeve 37 is prevented.
  • a sleeve-shaped changeover bolt 38 is inserted transversely to the igniter axis and has a groove 44 on its end face. With the aid of a tool which engages in this groove 44, the changeover pin 38 can be rotated about its axis in two different positions. At the other end, the changeover pin 38 is provided with a transverse bore 39 through which the instantaneous ignition pin 5 projects. In the first position of the changeover bolt, which is provided for the instantaneous ignition, the ignition pin 5 according to FIG. 1 can be pushed through the changeover bolt.
  • the cross slide 10 has an elongated passage opening 41 through which the deceleration ignition pin 14 can pierce the second squib 13. It is sufficient that the cross slide is shifted to the right by the amount “a in FIG. 3, so that the delay ignition pin 14 is able to pierce the squib 13.
  • the bearing body 11 has a chamber 43 which, when the squib 13 is ignited, ensures that the spark leaps onto the squib 12.
  • the chamber 43 is shown in broken lines in FIG. 3.
  • another squib 13a could be arranged in the bearing body 11.
  • a further delay ignition pin 14a would have to be arranged coaxially with this squib, but this is not shown in the drawing and is of exactly the same design as the delay ignition pin 14 shown in FIG. 2. This would have the advantage that if one delay ignition pin failed, the second will not fail at the same time.
  • the impact detonator operates as follows: Before the projectile is fired, the cross slide 10 (FIG. 1) is in its safety position and is held in this position by the locking bush 18. When the projectile is fired, the locking bolt 23 and then the locking bush 18 are pushed back by the firing acceleration. The locking bush 18 also remains locked in the retracted position at the end of the acceleration phase, since the locking bolt 23, which moves forward again, presses the balls 21 outward, so that they are supported on a shoulder 42 in the longitudinal bore 19 of the detonator housing 1 and a displacement prevent the pawl 18 forward.
  • the impact acceleration 4 also pushes back the impact head 4 with the instantaneous ignition pin 5 against the force of the spring 6.
  • the tip of the instantaneous ignition pin 5 then protrudes into the blind bore 15 (FIG. 1) and thus becomes not injured.
  • the spring 6 causes the instantaneous ignition pin 5 to return to its initial position according to FIG. 1.
  • the cross slide 10 has thus been released and is shifted to the right into its focus position under the force of the spring 16 (FIG. 3), this shift being controlled by the escapement 9, in accordance with the desired downtube security.
  • the axis of the first firing pin 5 coincides with the axis of the first squib 12.
  • the cross slide 10 can be moved into its focus in the manner described.
  • the two sleeves 32 and 37 despite the braking force exerted by the blocking body 36, are moved forward by their inertia until they abut the cross slide 10, the spring 35 being tensioned. If the deceleration of the projectile and thus of the detonator has dropped to a low value, the spring 35 can push the sleeve 32 backwards, so that the blocking bodies 36 under the pressure of the groove wall from this annular groove 31 in the between the sleeves 32 and 37 formed Get space.
  • the firing pin 14 is thereby pushed forward and under the force of the spring 35 and the squib 13 is pierced.
  • This second squib 13 can then ignite the first squib 12 via chamber 43, which in turn ignites the booster charge 3 via the explosive core 28.
  • a dud can e.g. B. arise when the projectile inadvertently strikes an object that is within the range in which the front pipe security of the projectile is effective.
  • a dud can also arise if z. B. the escapement 9 does not work and the cross slide does not move at all, or only partially shifts.
  • the squib 13 can already be pierced by the delay firing pin 14, thereby igniting the squib 12 in the cross slide 10 via the chamber 43.
  • this does not lead to the ignition of the projectile, since the squib 12 located in the cross slide 10 is still too far away from the explosive core 28 and the stationary squib 13 can under no circumstances directly ignite the explosive core 28. This results in a disarmed dud because the two squibs 12 and 13 were fired without the projectile being fired via the explosive core 28.
  • a dud can also arise if z. B. the instantaneous ignition pin 5 was switched off by the changeover pin 38 and the delay ignition pin 14 does not prick. In this case, a dangerous, i.e. H. unarmed duds arise.
  • a second delay ignition pin 14a can be present, which has the task of helping in the event of a failure of the first delay ignition pin 14. the momentary ignition pin 5 switched off to ignite the squib 13a and thus also the squibs 12 and 13 in order to still ignite the projectile or, if further faults occur, to disarm the igniter.
  • the three squibs 12, 13 and 13a are preferably arranged in this way and the chamber 43 is designed in such a way that in any case when one of these squibs 12, 13 and 13a is ignited, the other two squibs are also ignited by the ignited squib.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Laminated Bodies (AREA)

Claims (6)

1. Fusée à impact pour obus, se composant d'un boîtier de fusée (1) avec deux pastilles-amorces (12, 13), un percuteur (14) pour percuter l'une des pastilles-amorces (13) après l'impact sur l'objectif, un support de pastilles (10) mobile vers une position armée, et qui donne une sécurité avant la mise en place dans le canon, fusée caractérisée en ce que seulement l'une (12) des deux pastilles-amorces (12, 13) se trouve dans le support de pastilles-amorces (10), l'autre pastille-amorce (13) des deux pastilles-amorces (12, 13) étant prévue en un point fixe du boîtier de fusée (1) à l'extérieur de la chaîne de déclenchement et en ce que le support de pastilles (10) comporte un passage (41) à travers lequel passe le percuteur (14) pour percuter la pastille-amorce (13) fixe.
2. Fusée à impact selon la revendication 1, caractérisée en ce que la pastille-amorce (12) du support de pastilles-amorces (10), est, en position armée du support de pastilles-amorces (10), située entre un noyau explosif (28) et la pastille-amorce fixe (13) et en ce que le déclenchement du noyau explosif (28) par la pastille-amorce fixe (13) se fait exclusivement par la pastille-amorce (12) portée par le support de pastilles-amorces (10).
3. Fusée à impact selon la revendication 2, caractérisée en ce qu'a côté de la pastille-amorce fixe (13), il est prévu une chambre (43) dans le boîtier de fusée (1), chambre par laquelle la pastille-amorce fixe (13) peut déclencher la pastille-amorce (12) prévue dans le support de pastilles-amorces (10).
4. Fusée à impact selon l'une des revendications 1 à 3 comportant deux percuteurs (5, 14), caractérisée en ce que le premier percuteur (5) est un percuteur instantané déclenchant la pastille-amorce (12) du support de pastilles-amorces (10) et le second percuteur (14) est un percuteur retardé pour déclencher la pastille-amorce fixe (13) et en ce que le support de pastilles-amorces (10) est constitué par un tiroir transversal.
5. Percuteur à impact selon la revendication 4, caractérisé par une troisième pastille-amorce (13a) logée de manière fixe dans le boîtier de fusée (1) et par un troisième percuteur (14a) pour déclencher la troisième pastille-amorce (13a).
6. Percuteur à impact selon la revendication 5, caractérisé en ce que les deux pastilles-amorces (13, 13a) fixes sont suffisamment proches l'une de l'autre pour qu'au déclenchement de l'une des pastilles-amorces (13, 13a), l'autre soit également déclenchée.
EP19850100414 1984-03-08 1985-01-16 Fusée de projectile à percussion Expired EP0155449B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1152/84 1984-03-08
CH115284 1984-03-08

Publications (2)

Publication Number Publication Date
EP0155449A1 EP0155449A1 (fr) 1985-09-25
EP0155449B1 true EP0155449B1 (fr) 1987-07-08

Family

ID=4203692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850100414 Expired EP0155449B1 (fr) 1984-03-08 1985-01-16 Fusée de projectile à percussion

Country Status (4)

Country Link
EP (1) EP0155449B1 (fr)
CA (1) CA1227966A (fr)
DE (1) DE3560324D1 (fr)
NO (1) NO850575L (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL236971A (fr) * 1958-03-28
NL262490A (fr) * 1960-04-02

Also Published As

Publication number Publication date
EP0155449A1 (fr) 1985-09-25
DE3560324D1 (en) 1987-08-13
NO850575L (no) 1985-09-09
CA1227966A (fr) 1987-10-13

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