EP0023179B1 - Dispositif de sécurité d'armement pour engins explosifs - Google Patents

Dispositif de sécurité d'armement pour engins explosifs Download PDF

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Publication number
EP0023179B1
EP0023179B1 EP19800401071 EP80401071A EP0023179B1 EP 0023179 B1 EP0023179 B1 EP 0023179B1 EP 19800401071 EP19800401071 EP 19800401071 EP 80401071 A EP80401071 A EP 80401071A EP 0023179 B1 EP0023179 B1 EP 0023179B1
Authority
EP
European Patent Office
Prior art keywords
mobile component
support
final
pyrotechnic
initial
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
EP19800401071
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0023179A1 (fr
Inventor
Gérard Pierre Marie
Jean-Claude Victor Eloi Mercadier
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.)
Direction General de lArmement DGA
Original Assignee
Delegation Generale pour lArmement
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 Delegation Generale pour lArmement filed Critical Delegation Generale pour lArmement
Publication of EP0023179A1 publication Critical patent/EP0023179A1/fr
Application granted granted Critical
Publication of EP0023179B1 publication Critical patent/EP0023179B1/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
    • 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
    • F42C15/31—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids generated by the combustion of a pyrotechnic or explosive charge within the fuze

Definitions

  • the present invention relates to an armament security device for explosive devices such as in particular mines and missiles, which comprises a shutter for interrupting the pyrotechnic chain ensuring essential security such as storage, handling, etc., and a pyrotechnic lock whose operation allows the alignment of the pyrotechnic chain, therefore the arming of the device.
  • An object of the present invention will be to provide a missile system capable of fulfilling the second condition of armament.
  • Patent FR-A-2174405 describes a step-by-step mechanical drive device comprising a stator and a rotor. An impeller is used to generate gases to drive the rotor in rotation.
  • the present invention consists in producing a device making it possible to overcome the drawbacks of the aforementioned system while being simple in design, therefore of low cost price and of high reliability, of reduced bulk, capable of withstanding high mechanical stresses taking into account the harsh environment in which it is likely to operate.
  • Another characteristic of the invention consists in that the pyrotechnic lock, moved by a means having stored the reaction energy, comes to be placed in an end position, partially engaged in the support and in a second housing of the moving part, thus ensuring the locking thereof in the final position called arming.
  • the means having stored the reaction energy can for example consist of a spring.
  • the device according to the invention is housed in a support 1 closed by a cover 2.
  • the pyrotechnic chain is composed of a primer-detonator 3 preferably electric and housed in the support 1, of a detonation relay 4 housed in the thickness of a moving part called flap 5 and of a power relay 6 loaded with secondary explosive which makes it possible to transmit the detonation to the main charge.
  • the flap 5 serves as a pyrotechnic chain switch by its presence between the detonator initiator 3 and the power relay 6.
  • This flap 5 can pivot in the support 1 along its axis 7, but it is held in the initial safety position by a pin 8 and by the preferably electric igniter which serves as a pyrotechnic lock.
  • This igniter is partially placed in the support 1 and in a blind hole 10 made in the flap 5.
  • the shutter 5 is subjected to a torque due to the spring 13 and is held in its initial safety position by the igniter 9, and by the pin8.
  • the shutter also has a hole 15 in which the igniter 9 is housed after rotation of the shutter, that is to say when the latter has reached its final position called arming.
  • the operation of the device is as follows: the pin 8 is released either manually or automatically, the igniter 9 is set on fire and backs up under the effect of the gases it produces, it unlocks the flap 5 which is rotated by the spring 13.
  • the flap 5 passes from the initial safety position to the final arming position determined by the position of the stop 14. In this final position the hole 15 is located opposite the igniter which under the action of the spring 12 relocks the shutter.
  • the detonator initiator 3, the detonator relay 4 and the power relay 6 are aligned: the device is armed.
  • the device according to the invention therefore makes it possible to ensure double security during storage and handling in the event of inadvertent operation of the detonator primer, by maintaining the flap in the safety position thanks to the pin and the pyrotechnic lock, as well as extended security over time (during the laying of a minefield, or the flight of a missile) by the fact that the pyrotechnic lock can only be supplied with energy at the time of detection of the objective and just before the operation of the main load.
  • its simple design gives it great reliability, great ease of implementation, and a low cost price.
  • the switch flap can undergo translation rather than rotation.
  • the pyrotechnic lock can also be arranged perpendicular to the switch flap or tangent in the case of a rotation.
  • the alignment of the pyrotechnic chain can be obtained not only by erasing a screen, but also by moving the detonator primer.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP19800401071 1979-07-18 1980-07-18 Dispositif de sécurité d'armement pour engins explosifs Expired EP0023179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7918552 1979-07-18
FR7918552A FR2461922A1 (fr) 1979-07-18 1979-07-18 Dispositif de securite d'armement pour engins explosifs

Publications (2)

Publication Number Publication Date
EP0023179A1 EP0023179A1 (fr) 1981-01-28
EP0023179B1 true EP0023179B1 (fr) 1984-01-18

Family

ID=9228010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800401071 Expired EP0023179B1 (fr) 1979-07-18 1980-07-18 Dispositif de sécurité d'armement pour engins explosifs

Country Status (3)

Country Link
EP (1) EP0023179B1 (en:Method)
DE (1) DE3066167D1 (en:Method)
FR (1) FR2461922A1 (en:Method)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7387156B2 (en) 2005-11-14 2008-06-17 Halliburton Energy Services, Inc. Perforating safety system
CN112894338B (zh) * 2021-02-05 2022-07-12 广州明森合兴科技有限公司 一种爆炸螺栓自动安装设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323460A (en) * 1964-10-26 1967-06-06 Magnavox Co Thermo-torque motor
FR2174405A6 (en:Method) * 1971-06-08 1973-10-12 France Etat
FR2319874A1 (fr) * 1975-08-01 1977-02-25 Trt Telecom Radio Electr Dispositif de mise en place pyrotechnique et mecanique d'un detonateur

Also Published As

Publication number Publication date
DE3066167D1 (en) 1984-02-23
FR2461922B1 (en:Method) 1984-01-20
FR2461922A1 (fr) 1981-02-06
EP0023179A1 (fr) 1981-01-28

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