EP2065669A1 - Selbstschutzvorrichtung für Fahrzeug - Google Patents

Selbstschutzvorrichtung für Fahrzeug Download PDF

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Publication number
EP2065669A1
EP2065669A1 EP08291061A EP08291061A EP2065669A1 EP 2065669 A1 EP2065669 A1 EP 2065669A1 EP 08291061 A EP08291061 A EP 08291061A EP 08291061 A EP08291061 A EP 08291061A EP 2065669 A1 EP2065669 A1 EP 2065669A1
Authority
EP
European Patent Office
Prior art keywords
screen
enclosure
housing
protection
deployment
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Withdrawn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
EP08291061A
Other languages
English (en)
French (fr)
Inventor
Jean-François Cazalieres
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.)
Nexter Systems SA
Original Assignee
Nexter Systems SA
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 Nexter Systems SA filed Critical Nexter Systems SA
Publication of EP2065669A1 publication Critical patent/EP2065669A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/007—Reactive armour; Dynamic armour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/023—Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile
    • F41H5/026—Slat armour; Nets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/06—Shields
    • F41H5/16—Shields for ordnance or tanks

Definitions

  • the technical sector of the present invention is that of vehicle protection devices.
  • such a screen can trigger the explosive charge at a greater distance from the vehicle, which reduces the perforation efficiency of the load.
  • the patent DE-3337115 describes a screen disposed on the turret of the vehicle connected to telescopic poles for deploying the screen around the vehicle that is to say the roof and the lateral sides. It is indicated that the screen is made in the form of a net in order to recover grenades. It is understood that such a protection device is long to implement and is ineffective against projectiles animated with a very high speed.
  • the patent DE-2507351 describes a self-protection system against hollow charge ammunition, consisting of a net integral with a deployable mast at the end of which the net is fixed.
  • the net is held by masses 17 or 19 attached to the base of the net.
  • the masses exert their action on the net regardless of the position of the net even when the device is out of action.
  • the patent US-2007/0180983 describes a protection system consisting of a net attached to the wall of the vehicle to be protected.
  • the net is connected to the vehicle by a system of telescopic arms to maintain a gap between the net and the vehicle.
  • the net occupies a large part of the lateral surface of the vehicle.
  • the deployment means described are also complex and cumbersome.
  • the object of the present invention is to provide a tamper device implementing a screen in the form of a sail, compact and easy to implement.
  • the subject of the invention is therefore a self-protection device for an enclosure by deployment of a flexible screen in front of the enclosure, characterized in that it comprises a housing enclosing the flexible screen and means for providing the deployment of said screen, said housing having a fixed part integral with the enclosure and a detachable part, and in that it comprises means making it possible to cut the detachable part and to ensure the deployment of said screen, said screen being connected to its two opposite ends on the one hand to the fixed part and on the other hand to a ballast.
  • the housing consists of a base fixed to the enclosure and a cover constituting the detachable part.
  • the housing is cut by a pyrotechnic means.
  • the device comprises two deployable arms fixed at one of their end to the fixed part of the housing and applied against the screen to ensure, after deployment of the screen, the maintenance thereof away from the speaker.
  • the two arms are held in folded position by the screen.
  • the two arms are subjected to the action of a spiral spring.
  • the detachable part constitutes a weight of the screen.
  • the pyrotechnic means is electrically controlled remotely.
  • the flexible screen is constituted by a Kevlar ® / aramid fleece.
  • the invention also relates to the application of the device according to the invention to the protection of a vehicle, for example a military vehicle.
  • a first advantage of the device according to the invention lies in its very small footprint on the enclosure or the vehicle.
  • Another advantage lies in the fact that the vehicle can be provided with the device according to the invention on virtually all its walls.
  • Another advantage lies in the very low mass of the device and its ease of implementation.
  • Another advantage lies in the adaptation to any type of enclosure or vehicle to be protected.
  • FIG. 1 there is shown a view of a housing 1 in the form of a parallelepiped comprising a base 2 connected to a cover 3 within which a flexible screen 4 is folded into different layers.
  • the screen 4 is in the form of a web whose folds are adjacent to the inner walls of the housing.
  • the term "sail” is intended to mean a thin and flexible sheet having a substantially constant thickness.
  • the screen 4 may be made of a material consisting of Kevlar ® / aramid.
  • the base 2 of the housing is fixed on the enclosure (not shown) to be protected by means of screws 5 or by any other suitable means.
  • the cover 3 constitutes with the base a monobloc housing but thinned portions 6, 7 and 8, constituting breaking primers, are provided in the thickness of this cover to ensure separation from the base 2.
  • holes 9, 10 and 11 respectively are provided in which a pyrotechnic composition (in the form of detonating cords) is inserted.
  • a pyrotechnic composition in the form of detonating cords
  • All the cords are connected to each other and to a pyrotechnic initiator (not shown) to cause separation and ejection of the lid 3 by causing rupture of the rupture primers of the wall of the lid.
  • the initiator is connected to an electronic control means (not shown).
  • the two ends of the screen 4 consist on the one hand of the strand 13a which is fixed to the base 2 by bolts 14 and on the other hand by the strand 13b which is fixed to the cover 3.
  • the strand 13a is clamped between the base 2 and two support tongues 20 and 23 which carry welded nuts (or tappings) - see figure 3 .
  • the strand 13b is clamped between the cover 3 and a thin metal counterplate 29 (see figure 4 ) by means of bolts 15 (or nuts welded to the counterplate 29).
  • the two articulated arms 16 and 17 for keeping the screen 4 away from the enclosure.
  • the two arms are held in the folded position by the screen 4, the deployment of the screen 4 is effected in the direction of the arrow F.
  • These two articulated arms are each fixed on a pivot 18 (or 21) articulated with respect to the base 2 by means of a spring 19 (or 22) integral with the support 20 (or 23).
  • the supports 20, 23 are fixed directly on the base 2 and they pinch the end fold 13a of the screen 4.
  • the length of the arms 16 and 17 is provided in such a way that a sufficient distance (of the order of 0 , 5 m) is maintained between the enclosure and the screen after deployment of the latter. It is at this distance that a projectile rocket will be initiated. This distance is greater than the optimum distance for the perforation of a hollow charge. The effectiveness of the incident projectile will be reduced.
  • the figure 3 illustrates in more detail the structure of the arms 16 and 17.
  • Each arm 16 (or 17) is rotatably mounted about a pivot 18 (or 21) integral with the support 20 (or 23) and is subjected to the action of a spring 19 (or 22) wound spiral.
  • the spring 19 is then tensioned.
  • the arms 16 and 17 are released and ensure through the springs 19, 22 the deployment of the screen 4.
  • the springs 19 and 22 bring these arms into a substantially perpendicular direction along the arrow F '. This deployment allows to remove the screen of the speaker.
  • the figure 4 represents a section at the pivot point of one of the arms 16 or 17.
  • the elements illustrated by the figure 1 There is therefore the base 2 provided with a fixing screw 5 for fixing the housing 1 on the enclosure to be protected, the cover 3 on which the screen 4 is fixed by means of the bolts 15 and the holes 9 , 10 and 11 receiving detonating cords. In the vicinity of these holes, we find the break primers 6, 7 and 8 as explained above.
  • the figure shows the arrangement of the pivot 18 secured to the support 20 itself fixed on the other end strand 13a of the screen 4.
  • channels 25 made on an inner face of a side wall of the housing and which allow to position the pyrotechnic transmission elements between the different cords.
  • the pyrotechnic initiator (not shown) will be positioned on the sidewall considered.
  • the screen 4 is shown deployed after operation of the pyrotechnic means 9, 10, 11.
  • the screen 4 which is in the form of a continuous surface is kept away from the base 2 fixed to the enclosure (no represented) by arms 16 and 17 which have deployed as explained above.
  • the base 2 remains secured to the enclosure and the cover 3, constituting the detachable part, has been separated by remaining attached to the screen 4.
  • This cover 3 then constitutes a ballast to achieve a proper support of the screen in front of the speaker while ensuring a certain tension.
  • the screen 4 makes it possible to cause the triggering of a hollow charge rocket at a distance greater than its optimal operating distance, which decreases its effectiveness.
  • the screen can also destabilize a small caliber projectile which reduces its perforating efficiency.
  • each screen 4 delimits a first substantially plane portion 27 linked to the vehicle due to the deployment of the arms 16 and 17 (not visible in the figure) and another portion 28 connected to the lid 3 constituting the ballast in order to maintain the screen substantially flat.
  • This type of screen reduces the effectiveness of projectiles and ensure the defense of the vehicle against these projectiles.
  • the device according to the invention is actuated by control means making it possible to detect the approach of a projectile and the firing of the pyrotechnic means making it possible to deploy the screen or screens of protection.
  • control means making it possible to detect the approach of a projectile and the firing of the pyrotechnic means making it possible to deploy the screen or screens of protection.
  • These means are known to those skilled in the art and are not described.
  • the detection can be done conventionally by a radar means generating an electrical signal for firing the pyrotechnic means.
  • ballast ensuring the tensioning of the screen 4 is constituted by the cover 3 itself. It is of course possible to provide a specific ballast secured to the end of the screen and a lightened lid that will no longer be attached to the screen. This cover will then only serve to keep the screen and the arms in the folded state in the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP08291061A 2007-11-28 2008-11-13 Selbstschutzvorrichtung für Fahrzeug Withdrawn EP2065669A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0708305A FR2924211B1 (fr) 2007-11-28 2007-11-28 Dispositif d'autoprotection d'un vehicule

Publications (1)

Publication Number Publication Date
EP2065669A1 true EP2065669A1 (de) 2009-06-03

Family

ID=39620416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08291061A Withdrawn EP2065669A1 (de) 2007-11-28 2008-11-13 Selbstschutzvorrichtung für Fahrzeug

Country Status (2)

Country Link
EP (1) EP2065669A1 (de)
FR (1) FR2924211B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050906A1 (de) * 2009-10-30 2011-05-05 Rheinmetall Landsysteme Gmbh Schutzsystem für fahrzeuge und andere objekte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507351A1 (de) 1975-02-20 1976-09-09 Precitronic Schutzvorrichtung an gepanzerten kampffahrzeugen o.dgl.
GB2040029A (en) * 1979-01-12 1980-08-20 Bofors Ab Protective device for a combat vehicle gun barrel
DE3337115A1 (de) 1982-10-13 1988-02-11 Secr Defence Brit Ballistische schutzhaube
US20070180983A1 (en) 2006-02-09 2007-08-09 Farinella Michael D Vehicle protection system
WO2007089253A2 (en) * 2005-06-01 2007-08-09 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for protecting vehicles and personnel against incoming projectiles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507351A1 (de) 1975-02-20 1976-09-09 Precitronic Schutzvorrichtung an gepanzerten kampffahrzeugen o.dgl.
GB2040029A (en) * 1979-01-12 1980-08-20 Bofors Ab Protective device for a combat vehicle gun barrel
DE3337115A1 (de) 1982-10-13 1988-02-11 Secr Defence Brit Ballistische schutzhaube
WO2007089253A2 (en) * 2005-06-01 2007-08-09 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for protecting vehicles and personnel against incoming projectiles
US20070180983A1 (en) 2006-02-09 2007-08-09 Farinella Michael D Vehicle protection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050906A1 (de) * 2009-10-30 2011-05-05 Rheinmetall Landsysteme Gmbh Schutzsystem für fahrzeuge und andere objekte

Also Published As

Publication number Publication date
FR2924211B1 (fr) 2009-12-25
FR2924211A1 (fr) 2009-05-29

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