EP0042957B1 - Fusée pour projectiles à rotation - Google Patents

Fusée pour projectiles à rotation Download PDF

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Publication number
EP0042957B1
EP0042957B1 EP81103707A EP81103707A EP0042957B1 EP 0042957 B1 EP0042957 B1 EP 0042957B1 EP 81103707 A EP81103707 A EP 81103707A EP 81103707 A EP81103707 A EP 81103707A EP 0042957 B1 EP0042957 B1 EP 0042957B1
Authority
EP
European Patent Office
Prior art keywords
bore
fuse
rotor
accordance
balls
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
EP81103707A
Other languages
German (de)
English (en)
Other versions
EP0042957A3 (en
EP0042957A2 (fr
Inventor
Günter Backstein
Joachim Fiebrich
Hans Walter Unger
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 Industrie AG
Original Assignee
Rheinmetall 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
Priority claimed from DE19803024966 external-priority patent/DE3024966A1/de
Priority claimed from DE19803037669 external-priority patent/DE3037669A1/de
Application filed by Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of EP0042957A2 publication Critical patent/EP0042957A2/fr
Publication of EP0042957A3 publication Critical patent/EP0042957A3/de
Application granted granted Critical
Publication of EP0042957B1 publication Critical patent/EP0042957B1/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
    • F42C9/16—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 relates to a detonator for swirl projectiles according to the preamble of claim 1.
  • Such an igniter is known from DE-A-23 36 880.
  • all the disassembly balls are already in their working positions from the outset, so that the ball carrier allows the rotor to swivel into the ignition position immediately after leaving the muzzle.
  • the detonator safety can be canceled immediately after leaving the mouth.
  • the ball carrier lifts off the locking slide of the ignition needle immediately upon leaving the tube through the disassembly balls located in their working position.
  • vibrations can occur in the ignition system as a result of projectile imbalance, during which the relatively unstable equilibrium, which the slide takes up in the central position when the pins are unlocked, change into a stable equilibrium, as a result of which the locking slide can assume the unlocked position of the ignition needle at an early stage.
  • the ignition chain can be triggered immediately after leaving the pipe and within a pre-pipe safety time.
  • DE-A-27 13 526 discloses a detonator suitable for the use of large-caliber projectiles, in which, in addition to a front pipe protection system that can only be used in a low speed range, consisting of an asymmetrically and eccentrically arranged mass system of disks, an axially parallel rear-view bolt as a safety device a second rotor lock consisting of a swivel plate is provided. It is necessary to lock this recoil bolt in the unlocked position of the swivel plate due to the low projectile speed, so that a trouble-free swiveling out of the swivel plate from the safety of the rotor can be guaranteed. This requires additional space-consuming locking means that engage in the recess of the rear firing pin.
  • the present invention has for its object to provide a detonator for swirl projectiles with a high rotational speed with a rotor that meets increased safety requirements, namely that the rotor carrying the detonator should remain in the safe position until the pre-pipe safety time has elapsed after leaving the pipe mouth, within which the detonator may not be armed and preclude an unintentional ignition in safe condition.
  • the rotor should be locked by two separate, independent locks, which are unlocked if possible by different physical variables acting on the projectile, whereby one of these locks can already be unlocked during the launch, while the second lock can only be unlocked by another bullet or trajectory-specific force after the end of the downtube or safety phase allows the rotor to pivot into the ignition position.
  • Increased safety requirements of the detonator also mean measures which increase the sensitivity and which ultimately guarantee the detonator's self-dismantling, provided it does not respond to a target.
  • the solution advantageously creates two independent rotor safety systems of an igniter for swirl projectiles with a high rotational speed which act independently of one another and correspond to all safety requirements. Due to the fact that with the first rotor lock under the influence of rotation, all disassembly balls are required to lift the ball carrier, the rotor can advantageously only pivot into the ignition position after the release of at least one disassembly ball that is secured in the bottom of a bore, which precludes premature ignition within the pre-pipe safety time .
  • the spring-loaded mass pin designed as a second safety device with coordination of the spring constants of the compression spring and the friction coefficient of the mass pin in the bore, also taking into account the projectile delay occurring on the further flight path, can no longer return to its starting position due to the influence of the rotational forces , advantageously results in a simple and space-saving second rotor safety device, in which additional means for locking the ground pin and for securing the rotor are unnecessary.
  • FIG. 1 and Figure 6 show in longitudinal sections two embodiments of the invention Detonator for swirl projectiles.
  • the igniter comprises in a cylinder body 22, 622 consisting of a plurality of screwed parts, an actuating device consisting of the disassembly spring 13, 613, the ball carrier 11, 611 and the needle carrier 16, 616, a rotor 20, 620 containing a pyrotechnic ignition charge 23, 623 and in rear part a transfer charge 24, 624.
  • the disassembly spring 13, 613 which is supported on the cylinder body 22, 622, presses the ball carrier 11, 611 in the rear direction of the cylinder body 22, 622 such that the needle carrier 16 in FIG.
  • this fuse consists of a ground pin 18, 618, which, loaded by a compression spring 19, 619, is slidably mounted in a bore 21, 621 running eccentrically parallel to the longitudinal axis.
  • the front part of the ground pin 18, 618 engages in a recess in the rotor 20, 620 and, in cooperation with the needle carrier 16, 616, prevents the actuating device 11, 13, 16, 611, 613, 616 Rotation of the rotor 20, 620 in its operative position.
  • the two safety systems blocking the rotor 20, 620 engage diametrically lying in the rotor 20, 620 in such a way that the latter cannot move out of its securing, in particular also due to shock and vibration loads which can occur during transport and handling of the projectile .
  • disassembly balls 6, 9, 10 are provided in FIG.
  • the rotor 20, 620 is released from its securing, as will be explained in detail below, so that it can pivot into its operative position.
  • two disassembly balls 9, 10 from the beginning i. H. also arranged in the stored state of the igniter in its working position in the bores 8 of the ball carrier 11.
  • These balls alone would not be sufficient to be able to lift the ball carrier 11, together with the needle carrier 16, under the influence of rotation against the pressure of the disassembly spring 13 from the contact surface on the rotor 20.
  • a further disassembly ball 6 is required.
  • the third disassembly ball 6 necessary for releasing the detonator is arranged to ensure the detonator at the bottom of a bore 7, which, starting from the rear part of the ball carrier 11, is arranged obliquely to the longitudinal axis of the ball carrier 11 and opens into the bore 8, which Splitter ball 6 during its working position, d. H. in the operative position of the actuating device 11, 13, 16.
  • the bore 7 is expediently designed as a through bore and then closed with the aid of the needle carrier 16.
  • Another exemplary embodiment of the invention provides that only one disassembly ball 606 is securely mounted at the bottom of the bore 607 and only moves into the working position on the ball bevel 612 under the influence of a swirl. This results in a particularly simple construction of the igniter.
  • the disassembly balls 6, 606 are secured by locking means which are arranged in a bore 15, 615 arranged in the ball carrier 11, 611.
  • a locking pin 5 'or locking balls 4, 5, 604, 605 are expediently used as locking means.
  • the bore 15, 615 appropriately cuts the bore 7, 607 in such a way that the mouth cross section of the bore 15, 615 is smaller than the diameter of the locking means 4, 5, 5 ', 604, 605, so that it does not completely enter the bore 7 , 607 can reach.
  • the bore 15, 615 is closed by a winding tape securing device which consists of the winding tape 1, 601 and the winding carriers 2, 3, 602, 603.
  • this winding tape safety device prevents the locking means 4, 5, 5 ', 604, 605 from escaping in the radial direction outwards from the bore 15, 615 and thus releases the disassembly ball 6, 606.
  • the use of two winding carriers 2, 3 , 602, 603 offers the advantage of reliable guidance of the winding tape, 1, 601.
  • the spherical slant carrier 17 is expediently designed as a circular ring, the inner edge of which is chamfered conically to form the spherical slant 12.
  • the spherical slant carrier 17 is advantageously designed so that it is easily replaceable on a step 25 in the fuse body 22. On the one hand, this enables a relatively simple processing of the spherical bevel to be observed very precisely and, on the other hand, an easy exchange of the spherical bevel carrier, for example in order to bring about a different disassembly characteristic of the detonator by replacing a spherical bevel carrier 17 with a differently designed spherical bevel 12.
  • the igniter is required to disassemble itself if it does not respond to a target. This is caused by the fact that when the detonator rotates at a slower rate, the disassembly balls 606 move radially inward on the bevels 612 and thus allow the spring-loaded needle carrier 616 to move in the direction of the detonator 623 of the rotor 620 in focus.
  • the winding tape carrier 603 closer to the head part of the igniter has a smaller diameter than the winding tape carrier 602 facing the rear part of the igniter.
  • a cylindrical pin 629 is also slidably mounted in a bore 628 made in the head part of the igniter body and is arranged such that it is coaxially surrounded by the spring 613. This pin 629 supports the movement of the needle carrier 616 in the direction of the detonator 623 via the ball carrier 611.
  • FIGS. 2, 3, 5 and 7, Details of the blocking of the disassembly ball 6 by the blocking means 4, 5, 5 ', 604, 605 arranged in the bore 15 can be seen in the further FIGS. 2, 3, 5 and 7, which can be understood from themselves without a detailed description.
  • FIG. 4 which represents a section along the line C-D of FIG. 1 and which illustrates the arrangement of the disassembly balls 9, 10 in the bores 8 in the ball carrier 11, does not require a more detailed description either.
  • these disassembly balls 606 then initially run in the bore 607 in the direction of the detonator tip until they enter the bores 608 not previously occupied. Together with those already in work position, i.e. H. in the bores 8 further disassembly balls 9, 10, the disassembly ball 6 according to FIG. 1, or disassembly balls 606 according to FIG.
  • the detonator comes into operation as soon as there is an impact on the projectile or as soon as the restoring force of the disassembly spring 13, 613 outweighs the centrifugal force transmitted to the ball carrier 11, 611 by means of the disintegration balls 6, 9, 10, 606.
  • the design of the detonator according to the invention offers the particular advantage that the rotor 20 is locked in its securing by two independently acting securing systems and that, in addition, the front pipe safety which meets all requirements is achieved by the separate blocking of the splitting ball 6.

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

Claims (12)

1. Fusée pour projectiles à rotation, comprenant un rotor mobile (20) comportant une charge d'allumage pyrotechnique (23), pouvant tourner sous l'effet de la rotation pour passer de sa position de sécurité à une position active, un dispositif de manoeuvre (11, 13, 16) pouvant être déplacé d'une position de sécurité, dans laquelle il maintient le rotor dans sa position non armée, pour le faire passer à une position armée et des moyens d'entraînement actionné par la rotation et l'inertie et se présentant sous la forme de billes de commande (6, 9) qui passent sur des parties en biseau, qui déplacent le dispositif de manoeuvre vers sa position active en surmontant un moyen élastique s'appuyant contre le corps de la fusée et qui maintient le dispositif de manoeuvre dans sa position non armée, caractérisée en ce que l'on prévoit en tant que moyen d'entraînement pour activer le dispositif de manoeuvre (11, 13, 16) au moins deux billes de commande (6, 9), une bille de commande (9) au moins étant disposée aussi bien dans la position de sécurité que dans la position active du dispositif de manoeuvre (11, 13, 16) dans un alésage (8) d'un support de billes (11) à proximité du ressort de commande (13) du dispositif de manoeuvre (11, 13, 16) et une autre bille de commande (6) étant maintenue en position de sécurité du dispositif de manoeuvre (11, 13, 16) dans le fond d'un alésage (7), qui débouche dans un alésage (8) qui reçoit la bille de commande (6) en position active du dispositif de manoeuvre (11, 13, 16), et en ce qu'il est prévu en outre à la partie arrière du corps (22) de la fusée un autre dispositif de sécurité (18, 18, 21) qui empêche le mouvement du rotor (20) quand il est en position de sécurité.
2. Fusée selon la revendication 1, caractérisée en ce que le second dispositif de sécurité est constitué par une masse en forme de tige (18, 618) soumise à la sollicitation d'un ressort de compression (19, 619), la masse étant montée coulissante dans un alésage (21, 621) parallèle à l'axe longitudinal du corps (22, 622) de la fusée dans une partie située à l'arrière dudit corps (22, 622) de la fusée et pénétrant dans un évidement ménagé dans le rotor (20, 620).
3. Fusée selon la revendication 1 ou 2, caractérisée en ce que l'alésage (7, 607) est disposé de préférence en oblique par rapport à l'axe longitudinal du support de billes (11, 611) en partant de sa partie arrière, est constitué sous forme d'un alésage traversant et est fermé ensuite par un support de percuteur (16, 616).
4. Fusée selon l'une des revendications 1 à 3, caractérisée en ce que pour bloquer la bille de commande (6, 606) dans le fond de l'alésage (7, 607), on prévoit des moyens de blocage (4, 5, 5', 604, 605) qui sont disposés dans un alésage (15, 615) du support de billes (11, 611) relié à l'alésage (7, 607) en prévoyant en tant que moyen de blocage une tige de blocage (5') de forme sensiblement cylindrique ou deux billes de commande (4, 5, 604, 605) et les moyens de blocage (4, 5, 5', 604, 605) étant réalisés en une matière légère telle qu'une matière synthétique ou de l'aluminium.
5. Fusée selon l'une des revendications 1 à 4, caractérisée en ce que l'alésage (15, 615) qui est constitué sous forme conique débouche dans l'alésage (7, 607) de manière que la section de l'embouchure de l'alésage (15, 615) soit plus faible que le diamètre des moyens de blocage (4, 5, 5', 604, 605) de façon que ces derniers ne puissent pas sortir totalement de l'alésage (15, 615) en direction de l'alésage (7, 607).
6. Fusée selon l'une des revendications 1 à 5, caractérisée en ce qu'il est prévu un dispositif de sécurité à bande enroulée (1, 2, 3, 601, 602, 603) qui entoure concentriquement la partie du support de billes (11, 611) qui est à l'opposé du ressort de commande (13, 613) et qui empêche la sortie des moyens de blocage (4, 5, 5', 604, 605) de l'alésage (15, 615) en direction radiale et de ce fait la libération des billes de commande (6, 606) quand le corps (22, 622) de la fusée ne tourne pas.
7. Fusée selon l'une des revendications 1 à 6, caractérisée en ce que le support de bille biseauté (17, 617) est constitué sous forme d'un anneau circulaire dont un bord intérieur est de forme conique pour constituer la partie en biseau (12, 612) destinée aux billes et en ce que le support de billes biseauté (17, 617) repose sur un gradin (25, 625) du corps (22, 622) de la fusée de façon à pouvoir être facilement échangé.
8. Fusée selon l'une des revendications 1 à 7, caractérisée en ce que la masse en forme de tige (18, 618) et le support de percuteur (16, 616) sont disposés de manière à coopérer avec le rotor (20, 620) dans des positions sensiblement diamétralement opposées.
9. Fusée selon l'une des revendications 1 à 8, caractérisée en ce que la constante élastique du ressort de compression (19,619) et le coefficient de friction de la masse en forme de tige (18, 618) montée coulissante dans l'alésage (21, 621) sont adaptés l'un à l'autre de manière qu'après libération du rotor (20, 620), la masse en forme de tige (18, 618) ne puisse plus revenir à sa position de départ sous l'effet de la rotation.
10. Fusée selon l'une des revendications 1 à 9, caractérisée en ce que la bande enroulée (1, 601) est guidée par deux supports d'enroulement (2, 3, 602, 603) supportant respectivement la bande enroulée (1, 601) en direction axiale.
11. Fusée selon l'une des revendications 1 à 10, caractérisée en ce que :
a) dans un évidement (627) pratiqué dans l'enveloppe extérieure (626) du rotor (620) pénètre en position de sécurité du rotor (620) la pièce d'extrémité du support de percuteur (616),
b) une tige cylindrique (629) est montée coulissante dans un alésage (628) pratiqué dans la partie avant du corps (622) de la fusée et est disposé coaxialement au ressort (613) du dispositif de manceuvre,
c) il est prévu un dispositif de sécurité à bande enroulée constitué par une bande enroulée (601) et deux supports d'enroulement (602, 603), le support d'enroulement (603) qui est le plus proche de la partie de tête de la fusée ayant un diamètre extérieur plus faible que le support d'enroulement (602) tourné vers la partie arrière de la fusée.
12. Fusée selon l'une des revendications 1 à 11, caractérisée en ce que :
a) on prévoit en tant que moyen d'entraînement au maximum deux billes de commande (610),
b) toutes les billes de commande (610) sont retenues en position de sécurité de la fusée par des billes de blocage (604, 606) disposées dans le fond de l'alésage (607).
EP81103707A 1980-07-02 1981-05-14 Fusée pour projectiles à rotation Expired EP0042957B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19803024966 DE3024966A1 (de) 1980-07-02 1980-07-02 Zuender fuer drallgeschosse
DE3024966 1980-07-02
DE3037669 1980-10-04
DE19803037669 DE3037669A1 (de) 1980-10-04 1980-10-04 Zuender fuer drallgeschosse

Publications (3)

Publication Number Publication Date
EP0042957A2 EP0042957A2 (fr) 1982-01-06
EP0042957A3 EP0042957A3 (en) 1982-01-13
EP0042957B1 true EP0042957B1 (fr) 1984-08-15

Family

ID=25786361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103707A Expired EP0042957B1 (fr) 1980-07-02 1981-05-14 Fusée pour projectiles à rotation

Country Status (10)

Country Link
US (1) US4406225A (fr)
EP (1) EP0042957B1 (fr)
CA (1) CA1148022A (fr)
DE (1) DE3165530D1 (fr)
DK (1) DK269681A (fr)
ES (1) ES8204849A1 (fr)
GR (1) GR74170B (fr)
NO (1) NO153507C (fr)
PT (1) PT73089B (fr)
TR (1) TR21857A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3244529C2 (de) * 1982-12-02 1986-10-30 Gebrüder Junghans GmbH, 7230 Schramberg Drallgeschoßzünder mit Selbstzerlegereinrichtung
CA1225542A (fr) * 1984-12-03 1987-08-18 Gilles M. Berube Perculeur, et son mecanisme de surete et d'armement pour ogive percante
FR2730051B1 (fr) * 1995-01-30 1997-03-21 Manurhin Defense Dispositif de securite et d'armement pour fusee de projectile
US6604467B2 (en) * 1998-04-03 2003-08-12 Michael Alculumbre Safety system for a projectile fuse
US7536818B1 (en) 2008-05-28 2009-05-26 The United States Of America As Represented By The Secretary Of The Navy Mechanical coupling arrangement between initiator and firing pins
FR2959303B1 (fr) * 2010-04-27 2012-04-06 Nexter Munitions Dispositif d'amorcage a initiation electrique pour projectile
US8443728B2 (en) * 2011-09-23 2013-05-21 Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense Impact fuze for a high-spin self-destructing device
FR3039267B1 (fr) * 2015-07-24 2017-07-14 Nexter Munitions Dispositif de securite et d'armement pour une fusee d'ogive et fusee comportant un tel dispositif
RU195613U1 (ru) * 2019-11-11 2020-02-03 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Средство задействования

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1316607A (en) * 1919-09-23 Detonator for projectiles
IT341235A (fr) * 1936-04-17 1900-01-01
BE427862A (fr) * 1937-05-04
LU36172A1 (fr) * 1958-06-12
FR1302749A (fr) * 1960-10-06 1962-08-31 Nordiska Armaturfab Ab Dispositif de sécurité pour la fusée de projectiles rotatifs
DE1183409B (de) * 1963-11-23 1964-12-10 Rheinmetall Gmbh Zerlegerzuender fuer Drallgeschosse mit Vorrohrsicherheit
NL128552C (fr) * 1964-03-31
DE1207240B (de) * 1964-03-31 1965-12-16 Oerlikon Buehrle Holding A G Selbstzerlegerzuender fuer Drallgeschosse
DE1259740B (de) * 1965-02-26 1968-01-25 Rheinmetall Gmbh Aufschlagzuender fuer Drallgeschosse
LU53848A1 (fr) * 1967-06-09 1969-04-22
FR2256697A5 (fr) * 1972-07-20 1975-07-25 Haut Rhin Manufacture Machines
US3830159A (en) * 1972-11-06 1974-08-20 Us Army Mechanism
GB1422990A (en) * 1973-06-13 1976-01-28 Diehl Safety device on an electrical projectile fuze
CH582872A5 (fr) * 1974-09-02 1976-12-15 Oerlikon Buehrle Ag
FR2349816A1 (fr) * 1976-04-29 1977-11-25 Thomson Brandt Fusee de mise a feu et projectile equipe d'une telle fusee
DE2713526A1 (de) * 1977-03-26 1978-09-28 Rheinmetall Gmbh Verzoegerungseinrichtung fuer zuender von drallstabilisierten geschossen

Also Published As

Publication number Publication date
PT73089A (de) 1981-06-01
DE3165530D1 (en) 1984-09-20
NO812255L (no) 1982-01-04
EP0042957A3 (en) 1982-01-13
GR74170B (fr) 1984-06-07
US4406225A (en) 1983-09-27
NO153507C (no) 1986-04-02
CA1148022A (fr) 1983-06-14
TR21857A (tr) 1988-09-30
DK269681A (da) 1982-01-03
NO153507B (no) 1985-12-23
ES503484A0 (es) 1982-05-16
PT73089B (de) 1982-05-05
ES8204849A1 (es) 1982-05-16
EP0042957A2 (fr) 1982-01-06

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