EP0105001B1 - Sicherheitseinrichtung mit einem umlaufenden Käfig für ein Drallgeschoss - Google Patents

Sicherheitseinrichtung mit einem umlaufenden Käfig für ein Drallgeschoss Download PDF

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Publication number
EP0105001B1
EP0105001B1 EP83401862A EP83401862A EP0105001B1 EP 0105001 B1 EP0105001 B1 EP 0105001B1 EP 83401862 A EP83401862 A EP 83401862A EP 83401862 A EP83401862 A EP 83401862A EP 0105001 B1 EP0105001 B1 EP 0105001B1
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EP
European Patent Office
Prior art keywords
axis
cage
rotation
missile
peripheral face
Prior art date
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Expired
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EP83401862A
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English (en)
French (fr)
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EP0105001A1 (de
Inventor
Jacques Nicolas
Roland Raso
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Manurhin Defense SA
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Manufacture de Machines du Haut Rhin SA MANURHIN
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Priority to AT83401862T priority Critical patent/ATE21765T1/de
Publication of EP0105001A1 publication Critical patent/EP0105001A1/de
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Publication of EP0105001B1 publication Critical patent/EP0105001B1/de
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    • 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
    • F42C15/192—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 rotatable in a plane which is parallel to the longitudinal axis of the projectile
    • F42C15/196—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 rotatable in a plane which is parallel to the longitudinal axis of the projectile by the action of centrifugal or inertia forces on the carrier body, e.g. the carrier having eccentrically mounted weights or eccentric centre of gravity

Definitions

  • the present invention relates to a rotating cage safety device for a revolving projectile.
  • projectiles carrying a military charge
  • a device for firing the latter and, to prevent this firing from occurring inadvertently during storage, feeding into the weapon, the path in the weapon tube during firing, and during the first meters of the trajectory of the projectile out of this tube, are also equipped with safety devices then preventing the operation of the firing device, to not allow that -when when the projectile has left the weapon barrel.
  • a gyroscopic rotor is used for this purpose which tends to tilt, during gyration of the projectile, from a position in which its axis of inertia makes an angle with the axis of gyration of the projectile and in which it interrupts a chain.
  • pyrotechnic thereof in a position in which the two axes are aligned and in which the continuity of the pyrotechnic chain is established.
  • the alignment of the axis of inertia of the gyroscopic rotor with the axis of gyration of the projectile tends to occur as soon as the projectile is subjected to a gyration, that is to say from its firing, it is desired to extend the security for a certain period of time after firing, corresponding for the projectile to a distance of a few meters from the muzzle of the weapon; for this purpose, means of locking are provided by pin, key, or any other similar device for maintaining for the desired time, or over the course of the desired distance, the gyroscopic rotor in the stationary state relative to the body of the projectile.
  • the aim of the present invention is to propose a safety device for a revolving projectile capable of operating by interrupting a pyrotechnic chain, or even by interrupting an electrical or fluidic circuit, for example firing or, on the contrary, closing an electrical circuit supplying security functions, therefore particularly efficiently, and which ensures, in a small footprint, with simple, economical and nevertheless reliable means, security over a distance of several tens of meters after leaving the projectile out of the weapon barrel.
  • the safety device generally comprising inside the body of the projectile, whose axis of gyration is defined, parallel to a determined direction of translation of the projectile, a movable member such as for example a gyroscopic rotor and at least one movable locking pin, under the action of centrifugal force following the gyration of the projectile, from a locking position of the movable member, in which it cooperates with the occupant a determined position to immobilize it in this position, to a position of release of the movable member in which this cooperation ceases, as well as at least one spiral strip normally wound and capable of taking place under the action of the force contri - fuge consecutive to the gyration of the projectile, as is known per se from FR-A-2 233 593, is characterized in that said member is movable inside a cage mounted for free rotation around the axis of girati one with respect to the body, inside thereof, by means of mounting means allowing the
  • a rocket body has been designated by 1, essentially of revolution around an axis 2 which constitutes its axis of gyration when, moving in translation in a direction 3 determined parallel to this axis 2, it turns on itself- even in a direction 4 which is a function of the direction of the scratches of the weapon tube by means of which the projectile is fired; the direction of gyration 4 indicated in FIGS. 3 to 5 corresponding to firing by means of a cannon, the tube of which is scored in a step to the right, by way of nonlimiting example.
  • the body 1 has a tubular shape and internally defines a cavity 5 open towards the rear and delimited inside the body 1 by an inner peripheral face 6 cylindrical of revolution around the axis 2 and by a annular front face 7, planar, oriented transversely with respect to axis 2 and joined by its outer periphery of face 6 and by its inner periphery of an inner peripheral face 8, cylindrical of revolution around axis 2 with a diameter smaller than that of the face 6, of an orifice 9 opening centrally therein and communicating forward with a channel 1 0 arranged in the body 1 for the guidance of a striker 11 along the axis 2 , from a front cocking position in which it is illustrated to a rear percussion position, projecting inside the cavity 5, which it can only gain after the safety device according to the invention has worked.
  • the body 1 integrally carries a base 12 which is remarkable in that it has a plane annular face 13 forwardly, oriented transversely with respect to the axis 2, contiguous by its periphery outside of the face 6 of the cavity 5 and through its inner periphery of an inner peripheral face 14, cylindrical of revolution around the axis 2, of an orifice 15 of the base 12, opening forward in this face 13 and towards the rear opposite a pyrotechnic relay 16 carried integrally by the base 12, behind the face 13; the face 13 thus defines for the cavity 5 a rear face.
  • a cage 17 which is delimited, if one refers to the assembled state of the device, by a peripheral face outer 18 cylindrical of revolution around the axis 2 and by two annular faces, pla nes, oriented transversely to this axis 2 and contiguous with the face 18 by their respective outer periphery, at the rate of a front face 19, facing forward and therefore placed opposite the front face 7 of the cavity 5, and a rear face 20 turned towards the rear and consequently placed opposite the rear face 13 of the cavity 5; for this purpose, the diameter of the face 18, which defines the outside diameter of the faces 19 and 20, is intermediate between the diameter of the face 6, on the one hand, and the respective diameters of the faces 8 and 14, on the other hand go.
  • the distance d separating the faces 19 and 20 parallel to the axis 2 is less than the value between the faces 7 and 13, measured in the same way.
  • the face 19 of the cage 17 is adjacent to an outer peripheral face 21, cylindrical of revolution around the axis 2 with a diameter closely similar to that of the inner peripheral face 8 of the orifice 9, d 'a pin 22 which the cage 17 carries integrally, projecting towards the front relative to its face 19, and which engages in the orifice 9 to ensure, by sliding contact between the faces 8 and 9, a guiding the cage 17 in rotation about the axis 2 relative to the body 1; similarly, the face 20 of the cage 17 is adjacent, by its internal periphery, to an external peripheral face 23, cylindrical of revolution around the axis 2 with a diameter as close as possible to that of the face 14, a pin 24 which the cage 17 projects projecting rearwardly relative to this face 20 and which engages in the orifice 15 so as to also provide such guidance for relative rotation, by mutual sliding contact of the faces 23 and 14.
  • the outer peripheral face 21 of the pin 22 is adjacent to the outer periphery of an annular face 25, transverse with respect to the axis 2, delimiting the pin 22 towards the front while, towards the rear , the outer peripheral face 23 of the pin 24 is adjacent to the outer periphery of an annular face 26, transverse with respect to the axis 2, delimiting this pin 24 towards the rear, and the distance separating respectively the face 25 of the face 19 and the face 26 of the face 20 parallel to the axis 2 is greater than the clearance and respectively less than the length of the face 8 or that of the face 14, measured parallel to the axis 2, so that the cage 17 and the body 1 can undergo a relative translation along this axis, in one direction or the other, within the limits of the clearance l, without being hampered and maintaining as good coaxiality as possible, by relative sliding faces 21 and 8 and faces 23 and 14 parallel to axis 2.
  • the pins 22 and 24 are hollow and, by their respective inner periphery, the faces 25 and 26 are contiguous with an inner peripheral face, respectively 27 or 28, cylindrical of revolution around the axis 2, opening inside of the cage 17 in a housing 29 constituting a bearing ensuring the guiding, in rotation in all directions around a center C located on the axis 2 and as far as possible fixed relative to the rotating cage 17, for a gyroscopic rotor 30.
  • the housing 29 has an inner peripheral face having a spherical inner envelope with center C
  • the gyroscopic rotor 30 has an outer peripheral face 31 also spherical, with a diameter as close as possible to the diameter of this envelope so that the center of this face 31 coincides as precisely as possible with the center C, and is in any case placed as exactly as possible on the axis 2.
  • the gyroscopic rotor 30 has its own axis of inertia 32 and is pierced right through, along this axis, with a channel 33 inside which is housed a primer 34, the shape and dimensions of the channel 33 in section transverse to the axis 32 and the diameter of the inner peripheral face 27 of the pin being suitable for allowing the passage of the striker 11 towards its percussion position, when the axis 32 coincides with the axis 2 in a privileged position of the gyroscopic rotor 30 inside the cage 17, position that the rotor tends to gain as soon as it is rotated around the axis 2; in this position, the rotor establishes the continuity of a pyrotechnic chain including the striker 11, the pin 22, the channel 33 with the primer 34, the pin 24 and the firing relay 16.
  • the rotor 30 is retained in a position in which its own axis of inertia 32 is angularly offset with respect to axis 2, with reference to the center C, that is to say in a position in which its channel 33 is not placed opposite the striker 11, by locking means which will now be described.
  • These locking means comprise in particular at least one pin oriented radially with respect to the axis 2, and preferably a plurality of such pins oriented radially with respect to the axis 2 and regularly distributed angularly with reference thereto, for immobilizing temporarily the rotor inside the cage 17 in an off-center position.
  • two pins 35 and 36 are thus provided, each of which has an external peripheral face, respectively 37 or 38, cylindrical of revolution about an own axis, respectively 39 or 40, and two end faces, respectively 41, 42 and 43, 44, oriented transversely to this own axis.
  • these pins 35 and 36 are retained in respective holes 45 and 46, cylindrical of revolution around the same axis 47 perpendicular to the axis 2, that the cavity 17 has between its faces 19 and 0, and which join the outer peripheral face 18 of the cage 17 to the inner housing 29 thereof; the housings 45 and 46 have an inner diameter complementary to the respective diameters of the faces 37 and 38 of the pins 35 and 36, to receive the latter sliding along the axis 47, in a position in which the respective axes merge with this axis 47 39 and 40 pins.
  • the length of the pins is such that, when they are engaged in a respective hole 45 or 46 of the cage 17 in a position in which one of their ends, respectively 42 or 44, is flush with the outer peripheral face 18 of the cage 17, their other end, respectively 41 or 43, located closer to the axis 2, penetrates inside the envelope spherical interior of the housing 29 and engages in a notch, respectively 48 or 49, which has for this purpose, respectively opposite the hole 45 or opposite the hole 46 along the axis 47, the outer peripheral face 31 of the gyroscopic rotor 30 when the latter occupies the offset position of its own axis of inertia 32 relative to the axis of gyration 2 of the body 1 chosen as the safety position.
  • the pins 35 and 36 thus housed in the holes 45 and 46 of the cage 17 are ejected under the action of centrifugal force when this cage 17 rotates around the axis 2, but a timer element prevents this ejection during the first meters of the projectile's trajectory.
  • This timer element is produced, in accordance with the invention, in the form of an elastic spiral band or spiral spring 50 of axis 2, interposed between the outer peripheral face 18 of the cage 17 from which it is independent and the inner peripheral face 6 of the cavity 5 cu body 1, and which has a mass, a shape, a rigidity and a prestressing such that, at rest, that is to say when the cage 17 is stationary, the elastic spiral strip 50 is wound around the outer peripheral face 18 of the cage 17 and encloses it so as to be integral therewith by friction, and such that they then allow the following process of unwinding of the strip, according to which the person skilled in the art will easily determine the values to be given to this mass (in particular in terms of linear mass), this shape (in particular in terms of length of the strip), this rigidity and this prestressing imposed on the winding, in the factory, of the strip around the face 18 of cage 17.
  • the elastic spiral band 50 is completely wound around the outer peripheral face 18 of the cage 17, and retains the pins 35 and 36 in a position in which their ends 41 and 43 engage in the notches 48 and 49 of the gyroscopic rotor 30 then off-axis with respect to the axis 2, to ensure safety; the rotating cage 17, as well as the spiral band 50 which is then integral therewith, are then free to rotate about the axis 2 relative to the body 1 thanks to the pins 22 and 24 and to the clearance provided, parallel to the axis 2, between the respective faces, transverse to this axis, of the body 1 and the cage 17; it will be noted that, advantageously, the elastic band 50 has, parallel to the axis 2, a dimension at most equal to the dimension d separating the faces 19 and 20, the band 50 being wound around the face 18 in a position such that it does not form a projection relative to these faces 19 and 20.
  • the projectile and, with it, the rocket body 1 move in the direction 3 undergoing a powerful acceleration , whose value is for example of the order of 60,000 to 120,000 times the value of the Earth's field of attraction, and all the elements likely to move inside the body 1 are pressed backwards against any counterpart possible, by inertia; in particular, the cage 17 by its face 20 and the spring 50 are pressed towards the rear against the face 13 of the cavity 5, which provides them with a rearward support and ensures by friction their connection to the rotation around the axis 2 with the body 1; consequently, the elastic spiral strip 50, the cage 17 and the elements which it contains are rotated about the axis 2 at the same speed as the body 1, in the same direction 4, to reach the muzzle of the weapon tube a maximum speed of rotation which is for example of the order of 40,000 to 60,000 revolutions per minute, from a zero initial value.
  • FIGS. 1 and 3 This state of total solidarity of the various elements of the device with the body 1 is illustrated in FIGS. 1 and 3.
  • the acceleration in direction 3 ceases to be replaced by a deceleration, the value of which is for example of the order of 40 times the value of the terrestrial field of attraction; all the elements of the mobile device inside the body 1 then tend by inertia to move forward and come to be pressed against any possible counterpart and, in particular, the cage 17 crosses the game to come to apply towards the front, by its face 19, against the face 7 of the cavity 5 which provides it with support.
  • the outer turn of the spiral band 50 tends to disengage outward under the action of centrifugal force and to come to lie between the face 6 of the cavity 5 of the body 1, so that it s' there follows the total centrifugal unfolding of the spiral band 50, of which it will be noted that for this purpose, the winding is such that the zones of the spiral band respectively increasingly closer to axis 2 follow one another in direction 4 of gyration, determined by the direction of the stripes of the barrel of the weapon (figure 4).
  • the spiral strip 50 is completely wound against the outer peripheral face 6 of the cavity 5 and secured to the body 1 by friction due to centrifugal force, and the outer peripheral face 18 of the cage 17 is completely clear, in particular opposite the holes 45 and 46, the pins 35 and 36 of which can then be ejected under the action of centrifugal force, which in turn presses them against the inner turn of the strip 50 wound against the face 6, as shown in Figures 2 and 5; naturally, the dimensioning of the various elements of the device is established as a function of this possibility of release.
  • the device which has just been described can be produced in an extremely wide range of dimensions, and an indication of dimensions and tolerances corresponding to the use of the device will be found below, by way of non-limiting example.
  • device for sizes of the order of 30 to 155 mm these figures being themselves given by way of non-limiting example.
  • This example corresponds to the case of the use of a single elastic spiral band 50, as illustrated, but it will be noted that it would not go beyond the scope of the invention to replace this single elastic spiral band with a plurality of similar bands juxtaposed in the direction of the axis of gyration 2 and whose mass, shape, rigidity and prestressing are such that they enclose, so as to be joined by friction, the outer peripheral face 18 of the cage 17 at rest and as long as the latter undergoes, by pressing against the rear support face 13 of the body 1 and thereby joining it with the latter upon acceleration of the projectile in the weapon barrel, a joint gyration with the body at an increasing speed from the zero value to a maximum value, and further such that their respective external turns tend to be released under the action of centrifugal force for a value slightly less than or equal to this maximum value to then press against the inner peripheral face 6 of the body and secure by friction, to allow the above process to take place.
  • around the elastic spiral strip 50 can be wound at least one second elastic spiral strip having a mass, a shape, a stiffness and a prestress such that it is wound around the outer turn of the strip 50 and encloses it so as to be integral therewith by friction at rest and as long as the cage is subjected, by pressing against the rear bearing face 13 of the body 1 and thereby becoming integral by inertia with the latter at acceleration of the projectile in the weapon tube, a joint gyration with the body 1 at a speed increasing from the zero value to a maximum value, and in addition such that the external turn of this second spiral band tends to be released under the action of centrifugal force for a value slightly less than or equal to this maximum value to press against the inner peripheral face 6 of the body 1 and to be joined by friction under the conditions described above, so that , successively, this second strip then the strip 50, released by the latter, undergoing the above process come to be pressed against the inner peripheral face 6 of the body 1, by means of the second spiral strip as

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Switches With Compound Operations (AREA)
  • Position Input By Displaying (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Emergency Lowering Means (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Looms (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Vending Machines For Individual Products (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Claims (9)

1. Sicherheitseinrichtung für ein Drallgeschoss, die im Inneren des Geschosskörpers (1), der eine bestimmte bzw. festgelegte und zu einer festgelegten Translationsrichtung (3) des Geschosses parallele Kreisdrehachse (2) zeigt,
ein mobiles Organ (30) und mindestens einen Zapfen (35, 36) zur Verriegelung desselben aufweist, wobei dieser Zapfen unter Wirkung der durch den Drall des Geschosses bedingten Zentrifugalkraft bewegbar ist aus einer Verriegelungsposition zur Verriegelung des mobilen Organs (30), in der der Zapfen mit dem eine bestimmte bzw. festgelegte Position einnehmenden Organ zur Festlegung des mobilen Organs in dieser Position zusammenwirkt, in eine Freigabeposition zur Freigabe des mobilen Organs (30), in welcher das Zusammenwirken aufgehoben wird, sowie mindestens ein Spiralband (50), das normalerweise eingerollt ist und unter Wirkung der durch den Drall des Geschosses bedingten Zentrifugalkraft asurollbar ist, dadurch gekennzeichnet, dass das Organ (30) im Innenraum eines Käfigs (17) bewegbar ist, der um die Drehachse (2) in bezug auf den Körper (1) in diesem frei drehbar befestigt ist, und zwar mit Hilfe von Befestigungselementen (22, 24), die ein Spiel (j) des Käfigs (17) bei der Translation in bezug auf den Körper (1) parallel zur Drehachse (2) erlauben, und zwar jeweils zwischen einer vorderen (7) und hinteren (13) Abstützfläche des Körpers (1) unter Bezugnahme auf die Translationsrichtung (3) des Geschosses, dass der Zapfen (35, 36) unter Bezugnahme auf die Drehachse (2) in dem Käfig (17) radial verschiebbar montiert ist, und zwar einerseits zwischen der Verriegelungsposition, in der seine der Drehachse (2) am nächsten gelegene Zone (41, 43) im Inneren des Käfigs (17) mit dem mobilen Organ (30) zusammenwirkt, um das Organ (30) in der in bezug auf den Käfig (17) bestimmten bzw. vorgegebenen Position festzulegen, und in der seine von der Dreachse (2) am weitesten abliegende Zone (42, 44) mit einer äusseren, in ihrer Drehung um die Drehachse (2) zylindrischen Umfangsfläche (18) des Käfigs fluchtet, und andererseits der von der Drehachse (2) weiter abliegenden Freigabeposition, in der seine der Achse (2) am nächsten gelegene Zone (41, 43) das mobile Organ (30) befreit, dass das Spiralband (50) zwichen der äusseren Umfangsfläche (18) des Käfigs (17) und einer inneren Umfangsfläche (6) des Körpers (1) angeordnet ist und dass dieses elastisch ist und eine Masse, Form, Steifigkeit und Vorspannung derart aufweist, dass es um die äussere Umfangsfläche (18) des Käfigs (17) herumgewickelt ist und diesen unter reibschlüssiger Anlage umspannt, und zwar beim Stillstand und solange dieser bei Beschleunigung des Geschosses in dem Panzerarm durch Trägheit sich mit dem Körper (1 ) solidarisierend eine mit dem Körper (1 ) gemeinsame Drehung bei einer von dem Wert Null auf den Maximalwert anwachsenden Geschwindigkeit erfährt, und dass die äussere bzw. Endwindung des Bandes unter Einwirkung der Zentrifugalkraft um einen Wert, der etwas kleiner oder gleich dem Maximalwert ist, zur Loslösung tendiert, um sich gegen die innere Umfangsfläche (6) des Körpers (1) auszulegen und sich damit durch Reibung derart zu solidarisieren, dass bei Austreten des Geschosses aus dem Panzerarm zentrifugales Ausrollen des elastischen Spiralbandes (50) hervorgerufen wird, und zwar mit der Befreiung des Zapfens (35, 36) in Richtung seiner Bewegung aus seiner das mobile Organ (30) festlegenden in seine dieses freigebende Position.
2. Einrichtung nach Anspruch 1, wobei das Geschoss einen bestimmten bzw. festgelegten Drehsinn aufweist, dadurch gekennzeichnet, dass das elastische Spiralband (50) derart aufgerollt bzw. aufgewickelt ist, dass dessen jeweilige Zonen, die der Drehachse (2) immer mehr näherliegen, in dieser Richtung aufeinanderfolgen.
3. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass diese eine Vielzahl der genannten Zapfen (35, 36) aufweist, die in bezug auf die Drehachse (2) winkelförmig regelmässig verteilt angeordnet sind.
4. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Elemente zur Befestigung des Käfigs (17) in bezug auf den Körper (1) zwei Lagerzapfen (22, 24) des Käfigs (17) und zwei komplementäre axiale Öffnungen (9, 15) aufweisen, die in dem Körper (1) des Geschosses jeweils in der vorderen (7) und hinteren (13) Abstützfläche ausgebildet sind.
5. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das mobile Organ (30) ein gyroskopischer Rotor mit zugehöriger bzw. eigener Achse (32) ist, der in dem Käfig (17) schwenkbar zwischen der genannten festgelegten Position, in der seine eigene Achse (32) in bezug auf die Drehachse (2) winkelförmig versetzt ist, und einer zweiten Position angeordnet ist, in der diese Achsen zusammenfallen, wobei der Rotor (30) während der Drehung des Körpers (1) zu einer Schwenkbewegung aus seiner ersten in seine zweite Position tendiert.
6. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Rotor (30) einen axialen Kanal (33) aufweist, der in der zweiten Position einen integrierenden Abschnitt einer pyrotechnischen Kette des Geschosses bildet.
7. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass diese Strom- oder Fluidkreis-Unterbrecherelemente aufweist, die durch die Schwenkbewegung des Rotors (30) gesteuert werden.
8. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass diese wenigstens ein zweites elastisches Spiralband aufweist, das in Richtung der Drehachse (2) um die äussere Umfangsfläche (18) des Käfigs (17) herum neben dem ersten elastischen Spiralband (50) angeordnet ist, wobei das zweite elastische Spiralband eine Masse, Form, Steifigkeit und Vorspannung derart aufweist, dass es um die äussere Umfangsfläche (18) des Käfigs (17) herum aufgerollt ist und diesen reibschlüssig bzw. durch Haftreibung umschliesst, und zwar beim Stillstand und solange dieses bei Beschleunigung des Geschosses in dem Panzerarm sich durch Trägheit mit dem Körper (1) solidarisierend eine gemeinsame Drehung mit dem Körper (1) erfährt, und zwar bei einer von dem Wert Null auf den Maximalwert anwachsenden Geschwindigkeit, und dass seine äussere bzw. Endwindung unter Wirkung der Zentrifugalkraft um einen Wert, der etwas niedriger oder gleich diesem Maximalwert ist, zur Loslösung tendiert, um sich gegen die innere Umfangsfläche (6) des Körpers auszulegen und sich damit durch Reibung zu verbinden, derart, dass bei Austritt des Geschosses aus dem Panzerarm, ein zentrifugales Ausrollen des zweiten elastischen Bandes hervorgerufen wird.
9. Einrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass diese wenigstens ein zweites elastisches Spiralband aufweist, das unter Bezugnahme auf die Drehachse (2) dem ersten elastischen Spiralband (50) radial übergeordnet ist und eine Masse, Form, Steifigkeit und Vorspannung derart aufweist, dass es um die äussere bzw. Endwindung des ersten Spiralbandes (50) herum aufgerollt ist und diese reibschlüssig bzw. durch Haftreibung umschliesst, und zwar beim Stillstand und solange der Käfig (17), der sich bei Beschleunigung des Geschosses in dem Panzerarm durch Trägheit mit dem Körper (1) solidarisiert, eine gemeinsame Drehung mit dem Körper (1 ) erfährt, und zwar bei einer von dem Wert Null auf den Maximalwert anwachsenden Geschwindigkeit, und dass seine äussere bzw. Endwindung unter Wirkung der Zentrifugalkraft um einen Wert, der etwas niedriger oder gleich diesem Maximalwert ist, zur Loslösung tendiert, um sich gegen die innere Umfangsfläche (6) des Körpers (1) auszulegen und sich damit durch Reibung zu solidarisieren bzw. zusammenzuschliessen, derart, dass bei Austreten des Geschosses aus dem Panzerarm ein zentrifugales Ausrollen des zweiten elastischen Spiralbandes hervorgerufen wird, wodurch ebenso das erste elastische Spiralband (50) befreit wird, welches somit ebenfalls zentrifugal ausgerollt wird.
EP83401862A 1982-09-24 1983-09-23 Sicherheitseinrichtung mit einem umlaufenden Käfig für ein Drallgeschoss Expired EP0105001B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401862T ATE21765T1 (de) 1982-09-24 1983-09-23 Sicherheitseinrichtung mit einem umlaufenden kaefig fuer ein drallgeschoss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216097 1982-09-24
FR8216097A FR2533686B1 (fr) 1982-09-24 1982-09-24 Dispositif de securite a cage tournante pour projectile giratoire

Publications (2)

Publication Number Publication Date
EP0105001A1 EP0105001A1 (de) 1984-04-04
EP0105001B1 true EP0105001B1 (de) 1986-08-27

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Family Applications (1)

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EP83401862A Expired EP0105001B1 (de) 1982-09-24 1983-09-23 Sicherheitseinrichtung mit einem umlaufenden Käfig für ein Drallgeschoss

Country Status (8)

Country Link
US (1) US4510869A (de)
EP (1) EP0105001B1 (de)
AT (1) ATE21765T1 (de)
CA (1) CA1206038A (de)
DE (1) DE3365684D1 (de)
ES (1) ES525878A0 (de)
FR (1) FR2533686B1 (de)
NO (1) NO159219C (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189309B (en) * 1985-04-04 1989-12-28 British Aerospace Control mechanism for projectiles.
US4815380A (en) * 1987-02-21 1989-03-28 M.A.N. Roland Druckmaschinen Ag Printing machine cylinder with adjustable groove cover element
DE3739368A1 (de) * 1987-11-20 1989-06-01 Dynamit Nobel Ag Vorrohrsicherung an einem geschoss mit aufschlagzuender
US5243912A (en) * 1991-12-09 1993-09-14 General Electric Co. Arming delay, dual environment safe, fuze
FR2689972B1 (fr) * 1992-04-14 1995-08-11 Manurhin Defense Dispositif de securite et d'armement pour fusee de projectile comportant un moyen anti-vibratoire.
US7284467B2 (en) * 2000-08-14 2007-10-23 Sd3, Llc Apparatus and method for detecting dangerous conditions in power equipment
US8151708B2 (en) * 2008-02-08 2012-04-10 Pacific Scientific Energetic Materials Company Safe and arm mechanisms and methods for explosive devices
FR2959304B1 (fr) 2010-04-27 2014-10-17 Nexter Munitions Dispositif d'amorcage a initiation par influence pour projectile
FR2959303B1 (fr) 2010-04-27 2012-04-06 Nexter Munitions Dispositif d'amorcage a initiation electrique pour projectile
FR2965044B1 (fr) * 2010-09-22 2012-08-24 Nexter Munitions Dispositif de securite et d'armement pour projectile explosif gyrostabilise et dispositif d'amorcage mettant en oeuvre un tel dispositif de securite et d'armement
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
FR3040482B1 (fr) 2015-08-27 2018-02-16 Nexter Munitions Fusee d'ogive a percuteur
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136253A (en) * 1963-01-28 1964-06-09 Maxson Electronics Corp Delayed arming mechanism
DE1259740B (de) * 1965-02-26 1968-01-25 Rheinmetall Gmbh Aufschlagzuender fuer Drallgeschosse
LU53848A1 (de) * 1967-06-09 1969-04-22
CH582872A5 (de) * 1974-09-02 1976-12-15 Oerlikon Buehrle Ag
CH585891A5 (de) * 1974-11-20 1977-03-15 Oerlikon Buehrle Ag
DE2539750C3 (de) * 1975-09-06 1980-06-19 Diehl Gmbh & Co, 8500 Nuernberg Sicherungseinrichtung für einen Drallgeschoßzünder
US4242963A (en) * 1978-09-25 1981-01-06 General Electric Company Delayed arming fuze for a spinning projectile

Also Published As

Publication number Publication date
US4510869A (en) 1985-04-16
EP0105001A1 (de) 1984-04-04
NO159219C (no) 1988-12-07
CA1206038A (en) 1986-06-17
DE3365684D1 (en) 1986-10-02
FR2533686B1 (fr) 1987-01-02
NO833431L (no) 1984-03-26
ATE21765T1 (de) 1986-09-15
FR2533686A1 (fr) 1984-03-30
ES8405512A1 (es) 1984-06-01
ES525878A0 (es) 1984-06-01
NO159219B (no) 1988-08-29

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