WO2023180278A1 - Dispositif de sécurité pour un allumeur, utilisation du dispositif de sécurité et procédé d'activation d'un allumeur avec ce dispositif de sécurité - Google Patents

Dispositif de sécurité pour un allumeur, utilisation du dispositif de sécurité et procédé d'activation d'un allumeur avec ce dispositif de sécurité Download PDF

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Publication number
WO2023180278A1
WO2023180278A1 PCT/EP2023/057134 EP2023057134W WO2023180278A1 WO 2023180278 A1 WO2023180278 A1 WO 2023180278A1 EP 2023057134 W EP2023057134 W EP 2023057134W WO 2023180278 A1 WO2023180278 A1 WO 2023180278A1
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WO
WIPO (PCT)
Prior art keywords
axial
rotation
lock
blocking element
unit
Prior art date
Application number
PCT/EP2023/057134
Other languages
German (de)
English (en)
Inventor
Thomas Hofer
Original Assignee
Rheinmetall Air Defence 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 Rheinmetall Air Defence Ag filed Critical Rheinmetall Air Defence Ag
Publication of WO2023180278A1 publication Critical patent/WO2023180278A1/fr

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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
    • F42C15/005—Combination-type safety mechanisms, i.e. two or more safeties are moved in a predetermined sequence to each other
    • 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
    • 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
    • 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
    • F42C15/23—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 by unwinding a flexible ribbon or tape
    • 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
    • F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
    • 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
    • F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
    • F42C15/285—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids stored within the fuze housing

Definitions

  • Fuse unit for a detonator use of the fuse unit and method for activating a detonator with this fuse unit
  • the invention relates to a safety unit for an igniter with the features of the preamble of patent claim 1.
  • the invention further relates to a use of this security unit and a method for activating an igniter with this security unit.
  • Detonators are used to initiate the active charge of various explosive devices such as explosives, bombs, rockets, mines, grenades or cartridge ammunition. In the particular case of military ammunition, there are a variety of different types of detonators that are used in different areas of application.
  • One type of detonators are proximity detonators, which ignite the explosive charge when it approaches the target and which are known, for example, from EPO 129 679 and US3,839,963.
  • safety units are used in military detonators, which prevent the activation of the detonator until a defined point in time after the ammunition has been fired.
  • Known safety units generally include a two-stage safety mechanism, in which in a first stage a mechanical element is released by axial forces and in a second stage another element is released by rotational centrifugal forces.
  • the security unit must have at least two independently functioning and functionally isolated security systems.
  • At least one of these independent security systems must prevent arming after initiation (shot firing) until a defined pre-pipe security is achieved.
  • the safety unit should consist of an axial safety device and a radial safety device.
  • a safety unit for detonators in which a spring element is used for axial safety and a wound band is used for centrifugal force safety.
  • the safety unit disclosed appears to meet the requirements of STANAG 4187.
  • a disadvantage of this approach is the complexity of the structure and components, which is associated with the corresponding space consumption. This limits the space for other fuze components, particularly with small and medium caliber ammunition.
  • the assembly process is time-consuming and therefore cost-intensive.
  • the invention is therefore based on the object of improving the safety unit for a detonator, a use of the safety unit and a method for activating a detonator with this safety unit, and in particular to provide a safety unit for a detonator which has increased reliability, is inexpensive to produce and quick can be mounted.
  • the basic principle of the invention is essentially that the axial lock is movable from an axial lock holding position into an axial lock release position, the axial lock being in a secured state when the axial lock is arranged in the axial lock holding position.
  • the axial lock engages in a first holding region of the rotation element when the axial lock is in the secured state, so that the rotation element is held in the specific, first rotation element position by means of the axial lock.
  • the thrust lock is in a released state when the thrust lock is placed in the thrust lock release position is.
  • the axial securing device has a deformable area, the deformable area being plastically deformable by the axial force. After and / or during the deformation of the deformable area, a movement of the axial lock from the axial lock holding position to the axial lock release position is possible.
  • the axial safety device By means of an axial lock designed in this way, a high level of reliability in the function of the axial lock can be achieved.
  • the axial safety device During transport of the safety unit, for example in ammunition, the axial safety device remains securely in the axial safety retaining position despite the forces on the axial safety device that occur during transport. The probability that the axial lock will not come off when the ammunition is fired is still very low.
  • the axial lock itself and the entire locking unit can be manufactured cheaply and installed quickly.
  • the rotation element is essentially spherical.
  • the deflected rotation element with the detonator arranged results in unequal center of mass positions of the rotation element relative to the security unit axis. Due to this unequal distribution, mass moments of inertia arise which enable an automatic movement of the rotating element from the first to the second rotating element position solely due to the forces on the rotating element occurring during the flight of the ammunition.
  • mass moments of inertia arise which enable an automatic movement of the rotating element from the first to the second rotating element position solely due to the forces on the rotating element occurring during the flight of the ammunition.
  • the deformable region preferably comprises an S-shaped metal strip.
  • Such a deformable area can be produced easily and inexpensively. Furthermore, the forces required to deform such an S-shaped metal strip can be calculated easily and very precisely, so that, on the one hand, the design of the axial lock is made easier and, on the other hand, the risk of a malfunction of the axial lock can be minimized.
  • the rotation element, the axial lock and the rotation lock are essentially arranged in a final body.
  • the end body has a groove, with the axial lock in the groove is arranged.
  • the groove has a groove holding area and a groove base.
  • the groove holding area and the groove base are arranged essentially perpendicular to one another.
  • a holding edge is formed between the groove base and the groove holding area.
  • the axial securing device has a base body, wherein the metal band is connected to the base body or is formed on the base body. The base body is guided in the groove.
  • the metal band lies at least partially on the groove holding area, with the metal band being bendable due to the axial force and inertia of the axial securing, so that the base body moves against the axial force in the groove and the metal band slides along the holding edge .
  • the base body contacts the groove base in the axial lock release position.
  • the production of the axial lock is further simplified in this way. Furthermore, the robustness of the axial lock is increased during use of the axial lock.
  • the axial securing can in particular be made in one piece. It would also be conceivable to connect the metal strip to the base body using, for example, a soldering process. Such a closing body is also easy to produce, in particular using fewer machining process steps and/or using a simple casting process.
  • the axial lock is connected, in particular fastened, in the area of the metal strip to a closing body, in particular in the area of a groove in the closing body.
  • the metal strip is fixed to the end body, in particular in the area of the groove. In this case, the metal strip does not slide over the holding edge when the axial lock moves from the axial lock holding position to the axial lock release position, but only the plastic deformation of the metal strip occurs.
  • the fixation of the metal strip to the final body could be achieved, for example, by soldering or welding.
  • the axial lock has a nose.
  • the groove also has a release area.
  • the nose of the axial lock engages in the first holding area of the rotation element in the axial lock holding position.
  • the nose of the axial lock is arranged in the axial lock release position in the release area of the groove.
  • the rotation element can be held securely in the first holding position, for example when transporting the security unit, so that no damage occurs during transport unwanted ignition of the detonator charge can occur by means of the ignition element.
  • the first holding area and the nose are adapted to one another, with the first holding area as a recess in the rotation element having a shape that is at least very similar to the nose, if not even the same.
  • the rotation safety device has a blocking element.
  • the blocking element is movable from a blocking element holding position to a blocking element releasing position, with the rotation lock being in a secured state when the blocking element is arranged in the blocking element holding position.
  • the blocking element engages in a second holding region of the rotation element when the rotation lock is in the secured state, so that the rotation element is held in the specific, first rotation element position by means of the rotation lock.
  • the rotation lock is in a released state when the blocking element is arranged in the blocking element release position.
  • the required provision of two independently functioning and functionally isolated safety systems is achieved in particular by the formation of the second holding area, which is separate from the first holding area, in particular at a distance, in the rotating element.
  • the first holding area and the second holding area are arranged and/or formed on two opposite sides of the rotation element.
  • the rotation lock advantageously has a delay unit.
  • the delay unit By means of the delay unit, the movement of the blocking element from the blocking element holding position into the blocking element release position can be delayed in time.
  • the delay unit has a band element.
  • the blocking element is designed as a pin, a movement of the pin being able to be blocked by means of the band element which is in a wound state.
  • the band element can be unwound by centrifugal force. When the band element is unwound, movement of the pin is possible, in which case the pin can be moved out of the rotation element by the centrifugal force, and thus the rotation lock can be released.
  • the delay unit has a rack and at least one gear.
  • the rack is coupled to the blocking element.
  • the rack and the at least one gear are in engagement with one another.
  • the delay unit has a first chamber and a second chamber.
  • a fluid can be moved from the first chamber into the second chamber by centrifugal force.
  • the blocking element is movable from the blocking element holding position to the blocking element releasing position when the fluid is in the second chamber and / or the movement of the fluid from the first chamber into the second chamber and moving the blocking element from the blocking element holding position in the blocking element release position occurs simultaneously.
  • the two chambers are mechanically easy to design and manufacture.
  • the blocking element can be locked by means of the delay unit.
  • the movement of the blocking element is caused by the centrifugal force from the blocking element holding position to the blocking element release position, namely out of the rotating element, by means of the delay unit after a programmed time delay and / or after a delay based on parameters such as a flight speed, a spin speed and / or a pressure difference.
  • the rotation lock and I or the axial lock advantageously comprises a metallic and/or polymeric material.
  • Such materials have the properties necessary for the function of rotation locking and/or axial locking, and are also readily available and economically profitable to procure.
  • the object on which the invention is based is also achieved by using the safety unit described above in a floor detonator, a head detonator and / or in an ammunition with a caliber of 12.7 mm or larger.
  • floor detonators, head detonators and/or ammunition with a caliber of 12.7 mm or larger can be produced with increased reliability and at low cost.
  • the bottom fuzes, head fuzes and/or ammunition with a caliber of 12.7 mm or larger can still be mounted quickly.
  • the object on which the invention is based is achieved by a method for activating a detonator of an ammunition with a safety unit described above, the method comprising the following sequential steps: a) igniting a propellant charge of the ammunition, b) releasing the axial safety device by at least partially plastic deformation the axial lock, c) generating spin in the projectile of the ammunition up to a maximum rotational speed, d) releasing the rotation lock, and e) moving the rotation element from the first rotation element position into the second rotation element position.
  • the detonator charge can then be ignited by means of the ignition element, with an active charge of the ammunition being detonated when the detonator charge is detonated.
  • FIG. 1 is a schematic representation of an exemplary embodiment of the safety unit for a detonator in a three-dimensional sectional view
  • FIG. 2 shows a schematic exploded view of the exemplary embodiment of the safety unit for an igniter according to FIG. 1,
  • 3a is a schematic representation of an axial fuse of the fuse unit for an igniter in a side view
  • Fig.3b is a schematic representation of the axial securing of the security unit for an igniter in a three-dimensional view.
  • FIG. 1 and 2 show a fuse unit 1 for a detonator 2 comprising an ignition element 3, a rotation element 4 comprising a detonator charge 5, an axial fuse 6 and a rotation fuse 7.
  • Fig. 1 shows the fuse unit 1 in a three-dimensional sectional view, with a 90 ° comprehensive, partially cylindrical area of the essentially cylindrical securing unit 1 is omitted or cut out in the illustration.
  • Fig. 2 the same reference numbers as in Fig. 1 are used for the same components.
  • the rotation element 4 is also referred to by those skilled in the art as an ignition chain lock.
  • the rotation element 4 can be held in a specific, first rotation element position 4.1 by means of the axial lock 6.
  • the rotation element 4 can also be held in the specific, first rotation element position 4.1 by means of the rotation lock 7.
  • the detonator charge 5 is protected from ignition by the ignition element 3 by a wall 8 of the rotation element 4 in the specific, first rotation element position 4.1.
  • the axial lock 6 is designed to be released by an axial force, in particular by the axial acceleration force that occurs when an ammunition containing the locking unit 1 is fired.
  • the rotation lock 7 is designed by centrifugal force, in particular in the case of spin-stabilized ones Centrifugal force occurring when shooting is to be solved.
  • the axial lock 6 and the rotation lock 7 are designed to enable the movement of the rotation element 4 into a specific, second rotation element position 4.2 when both locks 6 and 7 are released at the same time.
  • the detonator charge 5 can be ignited in the specific, second rotation element position 4.2 by means of the ignition element 3.
  • the ignition element 3 is part of the igniter 2, with further components of the igniter 2 not being shown here for the sake of clarity.
  • the ignition element 3 has, for example, a piercing needle and/or is designed as a piercing needle, with the detonator charge 5 being able to be initiated by means of a tip of the piercing needle.
  • the ignition element 3 is designed as an electronic ignition element.
  • the detonator charge 5 is, for example, cylindrical.
  • the detonator charge 5 further forms a surface of the rotation element 4 on at least one side of the rotation element 4.
  • Fig. 1 shows the rotation element 4 in the first rotation element position 4.1 with solid lines.
  • the second rotation element position 4.2 is symbolized in FIG. 1 by a dashed representation of the part of the detonator charge 5 forming the surface of the rotation element 4.
  • the detonator charge 5 can then be ignited, for example, by a movement of the ignition element 3 towards the detonator charge 5 and a force that can be generated in this way between the ignition element 3 and the detonator charge 5. If the security unit 1 is essentially cylindrical, the movement of the ignition element 3 could take place in a direction of an axis of the essentially cylindrical security unit 1.
  • the axial lock 6 is movable from an axial lock holding position 6.1 into an axial lock release position 6.2, the axial lock 6 being in a secured state when the axial lock 6 is arranged in the axial lock holding position 6.1.
  • the axial lock 6 engages in a first holding area 4.3 of the rotation element 4 when the axial lock 6 is in the secured state, so that the rotation element 4 is held in the specific, first rotation element position 4.1 by means of the axial lock 6.
  • the axial lock 6 is in a released state when the axial lock 6 is arranged in the axial lock release position 6.2.
  • the axial lock 6 has a deformable region 6.3, the deformable region 6.3 being plastically deformable by the axial force. After and / or during the deformation of the deformable area 6.3, a movement of the axial lock 6 from the axial lock holding position 6.1 into the axial lock release position 6.2 is possible.
  • the rotation element 4 is essentially spherical. Two opposite sides of the essentially spherical rotating element 4 could be designed to be flattened, with an orientation of the resulting surfaces then being, for example, parallel to an axis of the then cylindrical detonator charge 5. It would also be conceivable to use a rotation element 4 with a different shape, such as a cylindrical shape.
  • Fig. 3a and in Fig. 3b the axial fuse 6 of the security unit 1 for the detonator 2 is shown in a schematic representation, in Fig. 3a in a side view, and in Fig. 3b in a three-dimensional view.
  • the deformable area 6.3 includes an S-shaped metal band 6.4.
  • the rotation element 4, the axial lock 6 and the rotation lock 7 are essentially arranged in a final body 9. It is also conceivable that the rotation element 4, the axial lock 6 and / or the rotation lock 7 is / are at least partially, possibly temporarily, arranged outside the closing body 9.
  • the end body 9 has a groove 9.1, with the axial lock 6 being arranged in the groove 9.1.
  • the groove 9.1 has a groove holding area 9.2 and a groove base 9.3.
  • the groove holding area 9.2 and the groove base 9.3 are arranged essentially perpendicular to one another.
  • a holding edge 9.4 is formed between the groove base 9.3 and the groove holding area 9.2.
  • the axial lock 6 has a base body 6.5, wherein the metal band 6.4 is connected to the base body 6.5 or is formed on the base body 6.5. 1 to 3b show a one-piece design of the axial lock 6. It would also be conceivable that the deformable region 6.3, in particular the S-shaped metal strip 6.4, is connected to the rest of the axial lock 6 by means of, for example, a soldered connection. The base body 6.5 is guided in the groove 9.1.
  • the metal band 6.4 rests at least partially on the groove holding area 9.2 in the axial securing holding position 6.1, with the metal band 6.4 due to the axial force, in particular due to the axial acceleration force that occurs when an ammunition containing the securing unit 1 is fired, and an inertia of the axial securing device 6 is bendable, so that the base body 6.5 moves against the axial force in the groove 9.1 and the metal strip 6.4 slides along the holding edge 9.4.
  • the metal band 6.4 contacts the groove base 9.3 from the point in time after the metal band 6.4 has slid with one end over the holding edge 9.4 during the movement of the axial lock 6 from the axial lock holding position 6.1 into the axial lock release position 6.2.
  • the metal strip 6.4 is fixed to the end body 9, in particular in the area of the groove 9.1. In this case, the metal band 6.4 does not slide over the holding edge 9.4 when the axial lock 6 moves from the axial lock holding position 6.1 into the axial lock Release position 6.2 moves, but only the plastic deformation of the metal strip 6.4 takes place.
  • the axial lock 6 has a nose 6.6.
  • the groove 9.1 also has a release area 9.5.
  • the nose 6.6 of the axial lock 6 engages in the axial lock holding position 6.1 in the first holding area 4.3 of the rotating element 4.
  • the nose 6.6 of the axial lock 6 is arranged in the axial lock release position 6.2 in the release area 9.5 of the groove 9.1.
  • Fig. 1 shows the axial lock 6 in the axial lock holding position 6.1 with solid lines. Fig. 1 also shows the nose 6.6 of the axial lock 6 in the axial lock release position 6.2 with dashed lines.
  • the rotation lock 7 has a blocking element 7.1.
  • the blocking element 7.1 can be moved from a blocking element holding position 7.2 into a blocking element release position 7.3, with the rotation lock 7 being in a secured state when the blocking element 7.1 is arranged in the blocking element holding position 7.2.
  • the blocking element 7.1 engages in a second holding area 4.4 of the rotation element 4 when the rotation lock 7 is in the secured state, so that the rotation element 4 is held in the specific, first rotation element position 4.1 by means of the rotation lock 7.
  • the rotation lock 7 is in a released state when the blocking element 7.1 is arranged in the blocking element release position 7.3.
  • Fig. 1 shows the blocking element 7.1 in the blocking element holding position 7.2 with solid lines.
  • Fig. 1 also shows the blocking element 7.1 in the blocking element release position 7.3 with dashed lines.
  • the rotation lock 7 has a delay unit 7.4. By means of the delay unit 7.4, the movement of the blocking element 7.1 from the blocking element holding position 7.2 to the blocking element release position 7.3 can be delayed in time.
  • the delay unit 7.4 has a band element 7.5.
  • the blocking element 7.1 is designed as a pin 7.6, a movement of the pin 7.6 being blocked by means of the band element 7.5, which is in a wound state.
  • the band element 7.5 can be unwound by centrifugal force. In an unwound state of the band element 7.5 there is one Movement of the pin 7.6 is enabled, in which case the pin 7.6 can be moved out of the rotation element 4 by the centrifugal force, and thus the rotation lock 7 can be released.
  • the pin 7.6 is, for example, cylindrical.
  • the band element 7.5 has a ring 7.5.1, a spring band 7.5.2 and a securing band 7.5.3. Due to a rotational movement of the security unit 1, in particular due to the rotational movement of a projectile having the security unit 1, the security band 7.5.3 comes loose and the spring band 7.5.2 connected to the ring 7.5.1 unwinds. As soon as the ring 7.5.1 has deformed sufficiently, the blocking element 7.1, in particular the pin 7.6, is guided into the blocking element release position 7.2, since the blocking element 7.1, in particular the pin 7.6, then no longer counteracts the centrifugal force of the ring 7.5. 1 is held in the blocking element holding position 7.3.
  • the delay unit 7.4 could also have a rack and at least one gear. Such a rack is then coupled to the blocking element 7.1. The rack and the at least one gear are in engagement with one another. By means of the rack and the at least one gear, a force opposite to the centrifugal force can then be applied to the blocking element 7.1, so that a movement of the blocking element 7.1 from the blocking element holding position 7.2 into the blocking element release position 7.3 can be continuously delayed in time.
  • the delay unit 7.4 could also have a first chamber and a second chamber. A fluid can then be moved from the first chamber into the second chamber by centrifugal force.
  • the blocking element 7.1 is movable from the blocking element holding position 7.2 to the blocking element release position 7.3 when the fluid is in the second chamber and / or the movement of the fluid from the first chamber into the second chamber and the movement of the blocking element 7.1 from the Blocking element holding position 7.2 into blocking element release position 7.3 occurs simultaneously.
  • the blocking element 7.1 can also be locked, for example, by means of the delay unit 7.4.
  • the movement of the blocking element 7.1 is caused by centrifugal force from the blocking element holding position 7.2 into the blocking element release position 7.3, namely out of the rotating element 4, by means of the delay unit 7.4 then after a programmed time delay and / or after a delay based on parameters such as a Airspeed, a spin speed and / or a pressure difference allows.
  • the rotation lock 7 and I or the axial lock 6 advantageously comprises a metallic and/or polymeric material.
  • the safety unit 1 described is used, for example, in a bottom detonator, a head detonator and / or in ammunition with a caliber of 12.7 mm or larger.
  • a method for activating the detonator 2 of an ammunition with a fuse unit 1 described above includes the following sequential steps: a) igniting a propellant charge of the ammunition, b) releasing the axial fuse 6 by at least partially plastic deformation of the axial fuse 6, c) generating spin in the projectile the ammunition up to a maximum rotation speed, d) releasing the rotation lock 7, and e) moving the rotation element 4 from the first rotation element position 4.1 into the second rotation element position 4.2.
  • the ammunition is fired, for example, from a gun barrel.
  • the rotation lock 7 is preferably only released when the ammunition projectile has already left the weapon barrel and is at a distance from the weapon barrel at which the weapon barrel itself and / or the associated weapon can no longer be damaged by the detonation of the active charge of the projectile .

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Abstract

L'invention concerne un dispositif de sécurité (1) pour un allumeur (2) comprenant un élément d'allumage (3), un élément de rotation (4) comprenant une charge de détonateur (5), une sécurité axiale (6) et une sécurité de rotation (7), l'élément de rotation (4) pouvant être maintenu dans une première position d'élément de rotation spécifique (4.1) au moyen de la sécurité axiale (6), l'élément de rotation pouvant également être maintenu dans la première position d'élément de rotation spécifique (4.1) au moyen de la sécurité de rotation (7), une paroi (8) de l'élément de rotation (4) protégeant la charge de détonateur (5) dans la première position d'élément de rotation spécifique (4.1), vis-à-vis d'un allumage par l'élément d'allumage (3). La fiabilité du dispositif de sécurité est augmentée, et des coûts de production et des temps d'installation pour le dispositif de sécurité sont réduits au moyen de la sécurité axiale (6) venant en prise dans une première région de maintien (4.3) de l'élément de rotation lorsque la sécurité axiale (6) est dans un état fixé, de telle sorte que l'élément de rotation est maintenu dans la première position d'élément de rotation spécifique (4.1) au moyen de la sécurité axiale, la sécurité axiale (6) étant dans un état libéré lorsque la sécurité axiale est agencée dans la position de libération de sécurité axiale (6.2). La sécurité axiale (6) présente une région déformable (6.3), la région déformable (6.3) étant déformable plastiquement par la force axiale. Après et/ou pendant la déformation de la région déformable (6.3), un mouvement de la sécurité axiale (6) de la position de maintien de sécurité axiale (6.1) dans la position de libération de sécurité axiale (6.2) est activé.
PCT/EP2023/057134 2022-03-23 2023-03-21 Dispositif de sécurité pour un allumeur, utilisation du dispositif de sécurité et procédé d'activation d'un allumeur avec ce dispositif de sécurité WO2023180278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022106883.8 2022-03-23
DE102022106883.8A DE102022106883A1 (de) 2022-03-23 2022-03-23 Sicherungseinheit für einen Zünder, Verwendung der Sicherungseinheit und Verfahren zur Aktivierung eines Zünders mit dieser Sicherungseinheit

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US4242963A (en) 1978-09-25 1981-01-06 General Electric Company Delayed arming fuze for a spinning projectile
EP0129679A1 (fr) 1983-06-24 1985-01-02 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Fusée de proximitée adaptable sur un projectile
DE3446098A1 (de) * 1984-12-18 1986-06-26 Gebrüder Junghans GmbH, 7230 Schramberg Geschosszuender
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
US20170138714A1 (en) * 2015-07-24 2017-05-18 Nexter Munitions Safety and arming device for an instant impact point fuse and fuse including such a device

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DE3831863A1 (de) 1988-09-20 1990-03-22 Diehl Gmbh & Co Sicherungseinrichtung fuer einen drallgeschosszuender
US5243912A (en) 1991-12-09 1993-09-14 General Electric Co. Arming delay, dual environment safe, fuze
FR2691797A1 (fr) 1992-06-02 1993-12-03 Giat Ind Sa Système de sécurité et d'armement pour sous-munition, en particulier pour sous-munition embarquée dans un obus cargo.
DE60301401T2 (de) 2003-06-24 2006-06-22 Dixi Microtechniques S.A.S. Selbst-Zerlegerzünder für drallstabilisierte Geschosse
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US3595169A (en) 1969-09-18 1971-07-27 Gen Electric Time delay fuze
US3839963A (en) 1972-04-10 1974-10-08 Constr Navales Ind Proximity fuse for missiles
US4242963A (en) 1978-09-25 1981-01-06 General Electric Company Delayed arming fuze for a spinning projectile
EP0129679A1 (fr) 1983-06-24 1985-01-02 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Fusée de proximitée adaptable sur un projectile
DE3446098A1 (de) * 1984-12-18 1986-06-26 Gebrüder Junghans GmbH, 7230 Schramberg Geschosszuender
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
US20170138714A1 (en) * 2015-07-24 2017-05-18 Nexter Munitions Safety and arming device for an instant impact point fuse and fuse including such a device

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