EP2071274A2 - Dispositif de sécurité destiné à une amorce de projectile - Google Patents

Dispositif de sécurité destiné à une amorce de projectile Download PDF

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Publication number
EP2071274A2
EP2071274A2 EP08020934A EP08020934A EP2071274A2 EP 2071274 A2 EP2071274 A2 EP 2071274A2 EP 08020934 A EP08020934 A EP 08020934A EP 08020934 A EP08020934 A EP 08020934A EP 2071274 A2 EP2071274 A2 EP 2071274A2
Authority
EP
European Patent Office
Prior art keywords
safety device
projectile
apogee
securing means
unlocking
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.)
Withdrawn
Application number
EP08020934A
Other languages
German (de)
English (en)
Other versions
EP2071274A3 (fr
Inventor
Rudolf Harbrecht
Boris-Johannes Fürst
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.)
Junghans Microtec GmbH
Original Assignee
Junghans Microtec 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
Application filed by Junghans Microtec GmbH filed Critical Junghans Microtec GmbH
Publication of EP2071274A2 publication Critical patent/EP2071274A2/fr
Publication of EP2071274A3 publication Critical patent/EP2071274A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/40—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically
    • 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
    • F42C15/24—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
    • F42C15/24—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
    • F42C15/26—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 using centrifugal force

Definitions

  • the invention relates to a safety device for a detonator of a projectile, comprising an ignition means for transmitting ignition energy to another ignition means and a barrier for interrupting the transmission, which is locked in a locked state by a securing means, which is provided for an unlocking action due to a physical Enttechnischsparameters ,
  • a safety device for an igniter is used to prevent inadvertent activation of a main charge of a projectile, but an activation of the main charge after a release should be possible.
  • the safety device is part of a detonator for igniting the main charge, which is provided with a detonating chain of two or more ignition means.
  • the first ignition means is activated, e.g. a puncture-sensitive mini-detonator that is pierced by a puncture needle. Explosive energy of the first ignition means is transmitted by a corresponding arrangement of the first two ignition means to the second ignition means, which may be designed as a booster. This can transfer its explosive energy to an initial charge or main charge.
  • Previous detonators especially simple projectiles, such as mortar shells, have as a first securing means a Vorstecker and second securing means on a device which detects the launch shock.
  • the disadvantage of this securing means is that before loading the mortar shell, the Vorstecker must be pulled manually. Relatively often it happens that the pulling of the Vorsteckers is forgotten and the mortar shell becomes a dud.
  • the Entommesparameter is a Apogäumparameter, which is caused by the flying through of the projectile through the apogee of a projectile trajectory. It exploits a parameter which is independent of a launch parameter and which, in conjunction with the use of the launch parameter, can provide high security against unwanted firing.
  • the invention is particularly suitable for projectiles designed as mortar shells.
  • Mortars are usually fired at an angle of> 45 ° to the horizontal, whereby the course of the trajectory is approximately characterized by a parabolic flight, which has a pronounced reversal point in apogee.
  • An effect of the reversal point on a bullet passing the reversal point can be used as an apogee parameter.
  • the apogee parameter is a parameter that allows recognition of a passage of the projectile through the apogee.
  • the use as a release parameter presupposes that the apogee parameter is scanned by the securing means or otherwise evaluated in such a way that the traversing of the apogee is at least implicitly recognized.
  • the apogee parameter may be a course of velocity or deceleration and / or rotation of the projectile about an axis transverse to the direction of flight. The rotation may be due to inertia or other parameters, e.g. a magnetic field direction, are detected.
  • a profile of a height of the igniter above a reference, e.g. the soil can be an apogee parameter. Since the presence of the apogee parameter indicates that the projectile is far away from the launcher, high pre-pipe safety can be achieved.
  • Other arming parameters may be an acceleration, a spin, a dynamic pressure, a time after a launch or an impact pressure.
  • the barrier serves to receive and / or redirect ignition energy of the first ignition means such that ignition of the second ignition means is reliably prevented by ignition energy of the first ignition means.
  • the securing means is advantageously provided by the first independent second securing means which locks the barrier.
  • the two securing means are expediently provided for unlocking due to two independent physical arming parameters.
  • the securing means - expediently both securing means - is used for the particular mechanical locking of the barrier such that, for example, a movement of the barrier from its securing in the armed position is reliably prevented.
  • the apogee parameter is a force.
  • a force can simply be sampled and the presence of the apogee parameter can be easily detected.
  • the securing means may be robust and susceptible to interference when intended for mechanical scanning of the apogee parameter.
  • the securing means comprises a locking means, which triggers an unlocking action by changing its position in the igniter when passing through the apogee.
  • the securing means can be easily manufactured in this way.
  • the locking means in its securing position advantageously mechanically locks an unlocking action.
  • the locking means is provided for the position change by its inertia.
  • the locking means is advantageously a piece of metal, in particular a piece of shear metal, which reacts particularly fine on acceleration due to its high specific gravity.
  • the locking means releases an unlocking space due to its change in position, into which part of a bolt for carrying out the unlocking action can be introduced, locking and unlocking can be achieved easily.
  • the securing means comprises a magnet, which triggers an unlocking action by changing its position in the igniter when passing through the apogee. It can be a mechanical step at one Entriegel effort be achieved by a magnetically effected step, whereby an unlocking mechanism can be kept simple.
  • the securing means for unlocking by the presence of the Apogäumparameters expediently requires a previous unlocking, which is dependent on another Enttechnischsparameter
  • a security against unintentional unlocking of the second securing means can be further increased if the unlocking of the securing means is blocked by another securing means.
  • the unlocking of the securing means can be carried out, for example, only if an unlocking action has previously been carried out. Appropriately, this is the Entommesparameter effected by a launch of the projectile. Thus, the securing means can unlock only after the bullet has been fired.
  • a particularly reliable further securing means is a mechanical double-bolt system which unlocks by a launch acceleration.
  • a reliably acting barrier can be achieved if the barrier is a rotor and the second securing means is provided for locking the rotor.
  • the projectile In apogee, the projectile reaches the vertex of its trajectory. By the shaping of a projectile, if necessary in addition by a rear rudder, the projectile changes in the vertex its orientation and lowers the igniter down to the earth. This change in direction can be reliably used as an apogee parameter.
  • the securing means is clearly in front of e.g. Arranged by air resistance fulcrum of the projectile, so is caused by the change in direction a slight transverse acceleration transverse to the direction of flight of the projectile.
  • This lateral acceleration can be sensed mechanically or electronically as a feature of the change in direction and used as an apogee parameter.
  • Another characteristic of the railway vertex is a minimum in the speed of a steeply fired projectile. Since the projectile experiences during its flight a braking acceleration, which by the of Projectile caused air resistance, this braking acceleration is the lowest at minimum speed. The minimum speed is reached at the apex - or because of a general deceleration of the projectile during the flight shortly thereafter, when the acceleration of the fall compensates the general deceleration. When this minimum acceleration is sensed, a minimum in longitudinal acceleration of the detonator around the vertex can be used as the apogee parameter.
  • a velocity of the projectile can also be used as an apogee parameter if it is measured by an evaluation means around the apogee and the velocity minimum is recognized.
  • the evaluation is an electronic evaluation.
  • an electrical or electronic sensor may be advantageous for detecting and evaluating particularly small forces. Since its evaluation requires an electronic evaluation means, when using such a sensor, there is already a corresponding evaluation means, which in this case can also control an unlocking. An unlocking of the second securing means is expediently controlled electronically.
  • the direction of the earth's magnetic field can be measured relative to an igniter direction and it can be concluded that a change in direction of the projectile. If the change in direction per unit of time reaches a maximum, the projectile has reached or just exceeded the apogee.
  • the use of the direction of the earth's magnetic field relative to an igniter direction and / or its change in direction can hereby be reliably measured and used as an apogee parameter, in particular by an electronic evaluation means which is prepared accordingly.
  • Fig. 1 shows a trajectory 2 a projectile 4 with an igniter 6.
  • the projectile 4 After the launch of the projectile 4, it travels through a web which is ideally a parabola and deviates somewhat from the parabolic trajectory by a frictional resistance in the air.
  • all elements of the projectile 4 are equally affected by gravity, so that all elements are accelerated equally to Earth.
  • all the elements are without acceleration and thus weightless.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Catching Or Destruction (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Air Bags (AREA)
EP08020934A 2007-12-15 2008-12-03 Dispositif de sécurité destiné à une amorce de projectile Withdrawn EP2071274A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007060567A DE102007060567B4 (de) 2007-12-15 2007-12-15 Sicherungseinrichtung für einen Zünder eines Geschosses

Publications (2)

Publication Number Publication Date
EP2071274A2 true EP2071274A2 (fr) 2009-06-17
EP2071274A3 EP2071274A3 (fr) 2013-02-20

Family

ID=40303761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08020934A Withdrawn EP2071274A3 (fr) 2007-12-15 2008-12-03 Dispositif de sécurité destiné à une amorce de projectile

Country Status (4)

Country Link
US (1) US7980179B2 (fr)
EP (1) EP2071274A3 (fr)
DE (1) DE102007060567B4 (fr)
ZA (1) ZA200810554B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016124534A1 (fr) * 2015-02-02 2016-08-11 FOG GmbH Procédé permettant l'activation ou la désactivation automatique ciblée d'engins explosifs
CN106314812A (zh) * 2016-08-31 2017-01-11 贵州航天电子科技有限公司 一种惯性保险机构延时解除结构
CN107101541A (zh) * 2017-05-25 2017-08-29 南京理工大学 一种变质心球转子引信延期解除保险装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528478B2 (en) 2009-09-04 2013-09-10 Raytheon Company Safe arming system and method
DE102009058718B4 (de) * 2009-12-17 2011-12-08 Junghans Microtec Gmbh Sicherungseinrichtung für einen Zünder eines Geschosses
DE102012001219B4 (de) 2012-01-21 2014-07-31 Junghans Microtec Gmbh Geschosszünder, hierzu ausgebildetes Waffenrohr und Verfahren
KR101666216B1 (ko) 2016-01-27 2016-10-24 주식회사 풍산에프앤에스 탄착 시의 관성력 변화로 격침이 작동되는 신관
CN106123711B (zh) * 2016-08-12 2017-12-22 西安捷盛电子技术有限责任公司 一种引信解保试验装置
CN115727722A (zh) * 2022-11-17 2023-03-03 南京理工大学 一种利用永磁钥匙解除保险的引信保险机构

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP1826527A1 (fr) 2006-02-25 2007-08-29 Junghans Feinwerktechnik GmbH & Co.KG Allumeur de fusée mécanique

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016124534A1 (fr) * 2015-02-02 2016-08-11 FOG GmbH Procédé permettant l'activation ou la désactivation automatique ciblée d'engins explosifs
CN106314812A (zh) * 2016-08-31 2017-01-11 贵州航天电子科技有限公司 一种惯性保险机构延时解除结构
CN106314812B (zh) * 2016-08-31 2018-08-24 贵州航天电子科技有限公司 一种惯性保险机构延时解除结构
CN107101541A (zh) * 2017-05-25 2017-08-29 南京理工大学 一种变质心球转子引信延期解除保险装置
CN107101541B (zh) * 2017-05-25 2018-12-25 南京理工大学 一种变质心球转子引信延期解除保险装置

Also Published As

Publication number Publication date
DE102007060567B4 (de) 2009-08-27
US7980179B2 (en) 2011-07-19
US20090151585A1 (en) 2009-06-18
EP2071274A3 (fr) 2013-02-20
ZA200810554B (en) 2009-11-25
DE102007060567A1 (de) 2009-06-18

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