EP2312258B1 - Protection device for a grating of the body of a vehicle - Google Patents

Protection device for a grating of the body of a vehicle Download PDF

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Publication number
EP2312258B1
EP2312258B1 EP10290533A EP10290533A EP2312258B1 EP 2312258 B1 EP2312258 B1 EP 2312258B1 EP 10290533 A EP10290533 A EP 10290533A EP 10290533 A EP10290533 A EP 10290533A EP 2312258 B1 EP2312258 B1 EP 2312258B1
Authority
EP
European Patent Office
Prior art keywords
plate
protection device
shutter
column
rod
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.)
Not-in-force
Application number
EP10290533A
Other languages
German (de)
French (fr)
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EP2312258A1 (en
Inventor
Olivier Germenot
Jérôme Besancon
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
Priority to PL10290533T priority Critical patent/PL2312258T3/en
Publication of EP2312258A1 publication Critical patent/EP2312258A1/en
Application granted granted Critical
Publication of EP2312258B1 publication Critical patent/EP2312258B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F41H5/013—Mounting or securing armour plates
    • 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
    • F41H7/00—Armoured or armed vehicles
    • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
    • F41H7/03—Air-pressurised compartments for crew; Means for preventing admission of noxious substances, e.g. combustion gas from gun barrels, in crew compartments; Sealing arrangements
    • F41H7/035—Gratings for ventilation openings

Definitions

  • the technical sector of the present invention is that of the means of protection of the louvers of military vehicles.
  • a military vehicle has various openings to allow air circulation between the inside and the outside. These openings are for example air inlets or outlets of the engine, exhaust, cooling system, air conditioning and NBC security (nuclear, biological, chemical). These openings are closed by louvers placed on the side walls of the vehicle. They are difficult to protect ballistic and they degrade the stealth of the vehicle. For these reasons, these openings are generally positioned on the horizontal walls of the vehicle body and especially under the offsets.
  • the state of the art discloses protective plates of a wall of the body of a vehicle, said plates capable of sliding by the effect of a pressure field (eg DE 100 20 251 A1 , FR 888 358 A , US 4,167,889 A ). Also louvers for the use of vehicles are known (eg US 5,803,212 A , EP 0 476 271 A1 ).
  • the object of the present invention is to provide a protection device for combating the blast effects of a mine or an improvised explosive device by ensuring the obstruction of the shutter in the event of an explosion of the mine or the mine. improvised explosive device by reducing its vulnerability while ensuring the circulation of air during normal operation of the vehicle.
  • the subject of the invention is therefore a protective device a louver defined in the wall of the body of a vehicle, characterized in that it comprises a plate disposed at a distance from the shutter with the aid of spacers integral with the wall of the vehicle, the plate being made integral of each spacer by a shearable or deformable connection means by the effect of a pressure field exerted on the plate, the latter being then able to slide along the spacers to obstruct the louver under the effect of the pressure.
  • each spacer consists of a rod fixed to the wall and a column coaxial with the rod, the plate sliding relative to the column.
  • the plate is supported on the column and held by the rod with a head or a nut.
  • At least one washer is interposed between the head and the plate.
  • the plate has a counterbore bearing a through hole for each rod, the counterbore defining a thinned area of the plate which constitutes the shearable or deformable connection means, the head being engaged in the counterbore to come to bear on said zone.
  • the thinned zone comprises slots allowing the deformation of this thinned zone, the deformed parts of the thinned zone also ensuring the maintenance of the plate against the shutter by pinching the columns.
  • the plate is a shielding plate.
  • the plate is shaped to the dimensions of the shutter.
  • the small column is provided with a flange on which the plate is fixed by means of screws, the plate being released by breaking the thread of each screw which thus constitutes the connecting means. shearable or deformable.
  • the end of the column is fixed to the plate by a weld bead which constitutes the shearable connection means.
  • a first advantage of the present invention lies in the fact that it is the pressure field produced by the breath of the mine or the improvised explosive device that ensures the establishment of the protection.
  • Another advantage lies in the fact that the protection device has a resistance of the same order of magnitude as the other parts of the vehicle.
  • Another advantage of the invention lies in the fact that the plate provides a first protection against the various projections likely to reach the louver.
  • Yet another advantage of the device according to the invention lies in the fact that it does not generate modifications of the vehicle architecture.
  • a military vehicle 1 comprising a louver 2 made in the wall 3 at an offset of the vehicle body allowing the air outlet for example an air conditioning condenser of the vehicle.
  • This offset is good understood constituted by the wall of the vehicle.
  • the arrow shows the flow of air which is directed towards the ground in the vicinity of a wheel. Under the effect of an explosion of a mine buried in the ground, the blast of the explosion generates a pressure field that could cause serious disruption in the vehicle.
  • the invention makes it possible to reduce this vulnerability of the vehicle by simple means that do not require modification of the structure of such a vehicle.
  • a first embodiment is shown at figure 2 according to which there is provided a plate 4 disposed at a distance from the wall 3 of the vehicle in the vicinity of the shutter 2. This distance is of course intended to prevent any loss of load at the louver 2.
  • the plate 4 also provides the protection of the shutter against splinters and projections of mud likely to reach it.
  • the plate 4 is fixed to the wall 3 by means of spacers 5.
  • Each spacer 5 consists of a rod 7 integral with the wall 3 and a small column 8 mounted coaxially with the rod in a radial clearance 9.
  • the rod 7 passes through a hole 4a of the plate 4 and is screwed into a tapping 6 of the wall 3 and is terminated by a head 9.
  • the pillar 8 bears on the wall 3 at one end and receives the plate 4 on a shoulder 10a extended by a thinned portion 10b at the other end.
  • the plate 4 is provided with a countersink 11 around its hole 4a thus defining a thinned zone 12 bearing on the shoulder 10a of the small column 8.
  • This countersink 11 receives an elastic washer 13 applied to the thinned zone 12 and a flat washer 14 against the spring washer 13.
  • the head 9 of the rod is fully engaged in the counterbore 11. It goes without saying that the head 9 of the rod 7 can be replaced by a nut screwed to the stem.
  • the mounting of the device is carried out as follows. We first have the column 8 in the perforation of the plate 4 through the thinned zone 10b. The washer 13 and then the washer 14 are then placed. The rod 7 is then introduced into the column 8 in order to screw it into the wall 3 of the vehicle at the distance delimited by the height of the columns.
  • the plate 4 is fixed with several rods (at least four) on the vehicle to ensure the necessary mechanical strength thereof. If the rod 7 is provided with a nut to replace the head 9, the mounting is substantially identical and can be screwed first screw 7 and end by the establishment of the nut.
  • the position of the plate 4 is shown after implementation of the device, that is to say following the explosion of a mine. It is seen that under the effect of the blast of a mine explosion the plate 4 has slid along the spacers 5, relative to the column, to obstruct the louver 2 due to the pressure field thus created.
  • the thinned zone 12 constitutes a deformable connecting means of the plate 4 on the spacer 8. It is deformed by the blast of the explosion and pinches the small column 8 thus ensuring the maintenance of the plate 4 against the shutter 2.
  • FIG. 4 there is shown a top view of the plate 4 at the hole 4a.
  • the thinned zone 12 delimited by the countersink 11 comprises slots 15 which facilitate the deformation of this zone during the projection of the plate 4 against the shutter 2.
  • the thickness of the thinned zone 12 and the number of slots 15 are defined so as to ensure correct deformation of said zone.
  • the plate 4 is a shielding plate whose resistance is substantially equal to that of the vehicle body. This plate 4 must be able to obstruct the opening protected by the shutter 2 and it is arranged so that its dimensions are consistent with those of the shutter 2 (greater than those of the shutter).
  • FIG 5 another embodiment of the device according to the invention is shown.
  • the column 8 is extended at its free end by a flange 16 on which the plate 4 rests.
  • This flange 16 makes it possible to fix the plate 4 by means of screws 17.
  • the plate 4 can be fixed to the flange 16 by three screws 17 (only one screw is shown).
  • These screws constitute the shearable connection means of the plate 4 on the spacer 8. They are provided with a thread which is broken under the effect of the breath creating the pressure field allowing the plate 4 to slide along the Column 8 and to press against the shutter 2 as previously explained.
  • the plate 4 is attached to the vehicle substantially as previously described.
  • the columns 8 are first fixed to the plate 4 by means of the screws 17, then the flat washers 14 are positioned.
  • the rods 7 are then inserted into the columns and these rods are finally screwed into the wall 3 of the vehicle.
  • the figure 6 shows another embodiment of the device according to the invention.
  • the column 8 has a housing 19 inside which is housed the head 9 of the rod 7 (which is here a screw engaged in a tapping of the wall 3).
  • the plate 4 is fixed to the column 8 by a weld bead 18 which constitutes the shearable connection means.
  • the weld bead 18 is broken under the effect of the blast creating the pressure field allowing the plate 4 to slide along the column 8 and to press against the louver 2 as previously explained.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

Le secteur technique de la présente invention est celui des moyens de protection des persiennages des véhicules militaires.The technical sector of the present invention is that of the means of protection of the louvers of military vehicles.

Un véhicule militaire comprend diverses ouvertures afin de permettre la circulation de l'air entre l'intérieur et l'extérieur. Ces ouvertures sont par exemple des entrées ou sorties d'air du moteur, de l'échappement, du système de refroidissement, de la climatisation et de la sécurité NBC (nucléaire, biologique, chimique). Ces ouvertures sont fermées par des persiennes placées sur les parois latérales du véhicule. Elles sont difficiles à protéger balistiquement et elles dégradent la furtivité du véhicule. Pour ces raisons, on positionne généralement ces ouvertures sur les parois horizontales de la caisse du véhicule et notamment sous les déports.A military vehicle has various openings to allow air circulation between the inside and the outside. These openings are for example air inlets or outlets of the engine, exhaust, cooling system, air conditioning and NBC security (nuclear, biological, chemical). These openings are closed by louvers placed on the side walls of the vehicle. They are difficult to protect ballistic and they degrade the stealth of the vehicle. For these reasons, these openings are generally positioned on the horizontal walls of the vehicle body and especially under the offsets.

Ces ouvertures sont alors face au sol mais constituent un point d'entrée pour le souffle engendré par une mine ou un engin explosif improvisé (IED : Improvised Explosive Devices) explosant sous la roue du véhicule, sous son plancher ou à proximité du véhicule. Ainsi, lors d'une explosion d'une mine ou d'un engin explosif improvisé, les effets néfastes du souffle se propagent à travers la persienne à l'intérieur du véhicule mettant en danger la vie des occupants du véhicule et détériorant le matériel embarqué. Dans le cas d'une ouverture situé sur un flanc vertical, elle constitue un point d'entrée pour le souffle engendré par l'engin explosif improvisé.These openings are then facing the ground but are an entry point for the breath generated by a mine or improvised explosive device (IED) exploding under the vehicle wheel, under the floor or near the vehicle. Thus, during an explosion of a mine or an improvised explosive device, the harmful effects of the blast are propagated through the shutter inside the vehicle endangering the life of the occupants of the vehicle and damaging the equipment on board . In the case of an opening on a vertical flank, it constitutes an entry point for the breath generated by the improvised explosive device.

L'état de la technique divulgue des plaques de protection d'une paroi de la caisse d'un véhicule, lesdites plaques aptes à coulisser par l'effet d'un champ de pression (e.g. DE 100 20 251 A1 , FR 888 358 A , US 4 167 889 A ). Egalement des persiennes à l'usage des véhicules sont connues (e.g. US 5 803 212 A , EP 0 476 271 A1 ).The state of the art discloses protective plates of a wall of the body of a vehicle, said plates capable of sliding by the effect of a pressure field (eg DE 100 20 251 A1 , FR 888 358 A , US 4,167,889 A ). Also louvers for the use of vehicles are known (eg US 5,803,212 A , EP 0 476 271 A1 ).

Le but de la présente invention est de fournir un dispositif de protection destiné à combattre les effets de souffle d'une mine ou d'un engin explosif improvisé en assurant l'obstruction de la persienne en cas d'explosion de la mine ou de l'engin explosif improvisé en réduisant sa vulnérabilité tout en assurant la circulation de l'air en fonctionnement normal du véhicule.The object of the present invention is to provide a protection device for combating the blast effects of a mine or an improvised explosive device by ensuring the obstruction of the shutter in the event of an explosion of the mine or the mine. improvised explosive device by reducing its vulnerability while ensuring the circulation of air during normal operation of the vehicle.

Ce problème n'a pas reçu jusqu'à maintenant de solution efficace et il s'avère indispensable d'assurer la protection du persiennage d'un véhicule militaire.This problem has not yet received an effective solution and it is essential to ensure the protection of the louvering of a military vehicle.

L'invention a donc pour objet un dispositif de protection d'une persienne délimitée dans la paroi de la caisse d'un véhicule, caractérisé en ce qu'il comprend une plaque disposée à distance de la persienne à l'aide d'entretoises solidaires de la paroi du véhicule, la plaque étant rendue solidaire de chaque entretoise par un moyen de liaison cisaillable ou déformable par l'effet d'un champ de pression s'exerçant sur la plaque, cette dernière étant alors apte à coulisser le long des entretoises pour obstruer la persienne sous l'effet du champ de pression.The subject of the invention is therefore a protective device a louver defined in the wall of the body of a vehicle, characterized in that it comprises a plate disposed at a distance from the shutter with the aid of spacers integral with the wall of the vehicle, the plate being made integral of each spacer by a shearable or deformable connection means by the effect of a pressure field exerted on the plate, the latter being then able to slide along the spacers to obstruct the louver under the effect of the pressure.

Selon une caractéristique de l'invention, chaque entretoise est constituée d'une tige fixée à la paroi et d'une colonnette coaxiale à la tige, la plaque coulissant par rapport à la colonnette.According to a characteristic of the invention, each spacer consists of a rod fixed to the wall and a column coaxial with the rod, the plate sliding relative to the column.

Selon une autre caractéristique de l'invention, la plaque est en appui sur la colonnette et maintenue par la tige à l'aide d'une tête ou d'un écrou.According to another characteristic of the invention, the plate is supported on the column and held by the rod with a head or a nut.

Selon encore une autre caractéristique de l'invention, au moins une rondelle est interposée entre la tête et la plaque.According to yet another feature of the invention, at least one washer is interposed between the head and the plate.

Selon encore une autre caractéristique de l'invention, la plaque présente un lamage portant un trou de passage pour chaque tige, le lamage définissant une zone amincie de la plaque qui constitue le moyen de liaison cisaillable ou déformable, la tête étant engagée dans le lamage pour venir en appui sur ladite zone.According to another characteristic of the invention, the plate has a counterbore bearing a through hole for each rod, the counterbore defining a thinned area of the plate which constitutes the shearable or deformable connection means, the head being engaged in the counterbore to come to bear on said zone.

Selon une autre caractéristique, la zone amincie comporte des fentes autorisant la déformation de cette zone amincie, les parties déformées de la zone amincie assurant par ailleurs le maintien de la plaque contre la persienne par pincement des colonnettes.According to another characteristic, the thinned zone comprises slots allowing the deformation of this thinned zone, the deformed parts of the thinned zone also ensuring the maintenance of the plate against the shutter by pinching the columns.

Selon encore une autre caractéristique de l'invention, la plaque est une plaque de blindage.According to yet another characteristic of the invention, the plate is a shielding plate.

Selon encore une autre caractéristique de l'invention, la plaque est conformée aux dimensions de la persienne.According to yet another characteristic of the invention, the plate is shaped to the dimensions of the shutter.

Selon encore une autre caractéristique de l'invention, la colonnette est munie d'une collerette sur laquelle la plaque est fixée à l'aide de vis, la plaque étant libérée par la rupture du filetage de chaque vis qui constitue ainsi le moyen de liaison cisaillable ou déformable.According to yet another characteristic of the invention, the small column is provided with a flange on which the plate is fixed by means of screws, the plate being released by breaking the thread of each screw which thus constitutes the connecting means. shearable or deformable.

Selon un autre mode de réalisation de l'invention, l'extrémité de la colonnette est fixée à la plaque par un cordon de soudure qui constitue le moyen de liaison cisaillable.According to another embodiment of the invention, the end of the column is fixed to the plate by a weld bead which constitutes the shearable connection means.

Un tout premier avantage de la présente invention réside dans le fait que c'est le champ de pression produit par le souffle de la mine ou de l'engin explosif improvisé qui assure la mise en place de la protection.A first advantage of the present invention lies in the fact that it is the pressure field produced by the breath of the mine or the improvised explosive device that ensures the establishment of the protection.

Un autre avantage réside dans le fait que le dispositif de protection présente une résistance du même ordre de grandeur que les autres parties du véhicule.Another advantage lies in the fact that the protection device has a resistance of the same order of magnitude as the other parts of the vehicle.

Un autre avantage encore de l'invention réside dans le fait que la plaque assure une première protection contre les diverses projections susceptibles d'atteindre la persienne.Another advantage of the invention lies in the fact that the plate provides a first protection against the various projections likely to reach the louver.

Un autre avantage encore du dispositif selon l'invention réside dans le fait qu'il n'engendre pas de modifications de l'architecture du véhicule.Yet another advantage of the device according to the invention lies in the fact that it does not generate modifications of the vehicle architecture.

D'autres caractéristiques, avantages et détails de l'invention seront mieux compris à la lecture du complément de description qui va suivre de modes de réalisation donnés à titre d'exemple en relation avec des dessins sur lesquels :

  • la figure 1 est une vue partielle d'un véhicule militaire montrant l'implantation d'une persienne,
  • la figure 2 représente un premier mode de réalisation du dispositif de protection,
  • la figure 3 représente la position du dispositif de protection après fonctionnement,
  • la figure 4 représente un détail de réalisation de la plaque, et
  • la figure 5 représente un autre mode de réalisation du dispositif de protection,
  • la figure 6 représente un autre mode de réalisation du dispositif de protection.
Other features, advantages and details of the invention will be better understood on reading the additional description which will follow of embodiments given by way of example in relation to drawings in which:
  • the figure 1 is a partial view of a military vehicle showing the installation of a shutter,
  • the figure 2 represents a first embodiment of the protection device,
  • the figure 3 represents the position of the protection device after operation,
  • the figure 4 represents a detail of realization of the plate, and
  • the figure 5 represents another embodiment of the protection device,
  • the figure 6 represents another embodiment of the protection device.

Sur la figure 1, on a représenté partiellement un véhicule militaire 1 comprenant une persienne 2 pratiquée dans la paroi 3 au niveau d'un déport de la caisse du véhicule permettant la sortie d'air par exemple d'un condenseur de climatisation du véhicule. Ce déport est bien entendu constitué par la paroi du véhicule. La flèche montre la circulation de l'air qui en sortie est dirigée vers le sol au voisinage d'une roue. Sous l'effet de l'explosion d'une mine enfouie dans le sol, le souffle de l'explosion engendre un champ de pression risquant de provoquer de graves perturbation dans le véhicule. L'invention permet de réduire cette vulnérabilité du véhicule à l'aide de moyens simples ne nécessitant pas de modification de la structure d'un tel véhicule.On the figure 1 , partially shown a military vehicle 1 comprising a louver 2 made in the wall 3 at an offset of the vehicle body allowing the air outlet for example an air conditioning condenser of the vehicle. This offset is good understood constituted by the wall of the vehicle. The arrow shows the flow of air which is directed towards the ground in the vicinity of a wheel. Under the effect of an explosion of a mine buried in the ground, the blast of the explosion generates a pressure field that could cause serious disruption in the vehicle. The invention makes it possible to reduce this vulnerability of the vehicle by simple means that do not require modification of the structure of such a vehicle.

Un premier mode de réalisation est représenté à la figure 2 selon lequel on prévoit une plaque 4 disposée à distance de la paroi 3 du véhicule au voisinage de la persienne 2. Cette distance est bien entendu prévue pour éviter toute perte de charge au niveau de la persienne 2. La plaque 4 assure également la protection de la persienne contre les éclats et les projections de boue susceptibles de l'atteindre. La plaque 4 est fixée à la paroi 3 par l'intermédiaire d'entretoises 5. Chaque entretoise 5 est constituée d'une tige 7 solidaire de la paroi 3 et d'une colonnette 8 montée coaxialement à la tige suivant un jeu radial 9. La tige 7 traverse un trou 4a de la plaque 4 et est fixée par vissage dans un taraudage 6 de la paroi 3 et est terminée par une tête 9. La colonnette 8 vient en appui sur la paroi 3 à une extrémité et reçoit la plaque 4 sur un épaulement 10a prolongé par une partie amincie 10b à l'autre extrémité.A first embodiment is shown at figure 2 according to which there is provided a plate 4 disposed at a distance from the wall 3 of the vehicle in the vicinity of the shutter 2. This distance is of course intended to prevent any loss of load at the louver 2. The plate 4 also provides the protection of the shutter against splinters and projections of mud likely to reach it. The plate 4 is fixed to the wall 3 by means of spacers 5. Each spacer 5 consists of a rod 7 integral with the wall 3 and a small column 8 mounted coaxially with the rod in a radial clearance 9. The rod 7 passes through a hole 4a of the plate 4 and is screwed into a tapping 6 of the wall 3 and is terminated by a head 9. The pillar 8 bears on the wall 3 at one end and receives the plate 4 on a shoulder 10a extended by a thinned portion 10b at the other end.

La plaque 4 est munie d'un lamage 11 autour de son trou 4a définissant ainsi une zone amincie 12 venant en appui sur l'épaulement 10a de la colonnette 8. Ce lamage 11 reçoit une rondelle élastique 13 appliquée sur la zone amincie 12 et une rondelle plate 14 contre la rondelle élastique 13. Sur la figure, on voit que la tête 9 de la tige est engagée complètement dans le lamage 11. Il va de soi que la tête 9 de la tige 7 peut être remplacée par un écrou vissé à la tige.The plate 4 is provided with a countersink 11 around its hole 4a thus defining a thinned zone 12 bearing on the shoulder 10a of the small column 8. This countersink 11 receives an elastic washer 13 applied to the thinned zone 12 and a flat washer 14 against the spring washer 13. In the figure, we see that the head 9 of the rod is fully engaged in the counterbore 11. It goes without saying that the head 9 of the rod 7 can be replaced by a nut screwed to the stem.

Le montage du dispositif s'effectue de la manière suivante. On dispose d'abord la colonnette 8 dans la perforation de la plaque 4 par l'intermédiaire de la zone amincie 10b. On place ensuite la rondelle 13 puis la rondelle 14. On introduit alors la tige 7 dans la colonnette 8 afin de la visser dans la paroi 3 du véhicule à la distance délimitée par la hauteur des colonnettes. Bien entendu, la plaque 4 est fixée avec plusieurs tiges (au moins quatre) sur le véhicule afin d'assurer la tenue mécanique nécessaire de celle-ci. Si la tige 7 est munie d'un écrou en remplacement de la tête 9, le montage est sensiblement identique et on peut alors visser en premier lieu les vis 7 et terminer par la mise en place de l'écrou.The mounting of the device is carried out as follows. We first have the column 8 in the perforation of the plate 4 through the thinned zone 10b. The washer 13 and then the washer 14 are then placed. The rod 7 is then introduced into the column 8 in order to screw it into the wall 3 of the vehicle at the distance delimited by the height of the columns. Of course, the plate 4 is fixed with several rods (at least four) on the vehicle to ensure the necessary mechanical strength thereof. If the rod 7 is provided with a nut to replace the head 9, the mounting is substantially identical and can be screwed first screw 7 and end by the establishment of the nut.

Sur la figure 3, on a représenté la position de la plaque 4 après mise en oeuvre du dispositif, c'est-à-dire à la suite de l'explosion d'une mine. On voit que sous l'effet du souffle de l'explosion d'une mine la plaque 4 a coulissé le long des entretoises 5, par rapport à la colonnette, pour obstruer la persienne 2 par suite du champ de pression ainsi créé. La zone amincie 12 constitue un moyen de liaison déformable de la plaque 4 sur l'entretoise 8. Elle est déformée par le souffle de l'explosion et vient pincer la colonnette 8 assurant ainsi le maintien de la plaque 4 contre la persienne 2.On the figure 3 , the position of the plate 4 is shown after implementation of the device, that is to say following the explosion of a mine. It is seen that under the effect of the blast of a mine explosion the plate 4 has slid along the spacers 5, relative to the column, to obstruct the louver 2 due to the pressure field thus created. The thinned zone 12 constitutes a deformable connecting means of the plate 4 on the spacer 8. It is deformed by the blast of the explosion and pinches the small column 8 thus ensuring the maintenance of the plate 4 against the shutter 2.

Sur la figure 4, on a représenté une vue de dessus de la plaque 4 au niveau du trou 4a. La zone amincie 12 délimitée par le lamage 11 comporte des fentes 15 qui facilitent la déformation de cette zone lors de la projection de la plaque 4 contre la persienne 2. Bien entendu, l'épaisseur de la zone amincie 12 et le nombre de fentes 15 sont définis de façon à assurer une déformation correcte de ladite zone.On the figure 4 , there is shown a top view of the plate 4 at the hole 4a. The thinned zone 12 delimited by the countersink 11 comprises slots 15 which facilitate the deformation of this zone during the projection of the plate 4 against the shutter 2. Of course, the thickness of the thinned zone 12 and the number of slots 15 are defined so as to ensure correct deformation of said zone.

Il va de soi que la plaque 4 est une plaque de blindage dont la résistance est sensiblement égale à celle de la caisse du véhicule. Cette plaque 4 doit pouvoir obstruer l'ouverture protégée par la persienne 2 et on s'arrange alors pour que ses dimensions soient conformées à celles de la persienne 2 (supérieures à celles de la persienne).It goes without saying that the plate 4 is a shielding plate whose resistance is substantially equal to that of the vehicle body. This plate 4 must be able to obstruct the opening protected by the shutter 2 and it is arranged so that its dimensions are consistent with those of the shutter 2 (greater than those of the shutter).

Sur la figure 5, on a représenté un autre mode de réalisation du dispositif selon l'invention. On voit que la colonnette 8 est prolongée à son extrémité libre par une collerette 16 sur laquelle la plaque 4 repose. Cette collerette 16 permet de fixer la plaque 4 à l'aide de vis 17. Au niveau de chaque tige 7, la plaque 4 peut être fixée à la collerette 16 par trois vis 17 (seule une vis est représentée). Ces vis constituent le moyen de liaison cisaillable de la plaque 4 sur l'entretoise 8. Elles sont munies d'un filetage qui est rompu sous l'effet du souffle créant le champ de pression permettant à la plaque 4 de coulisser le long de la colonnette 8 et de se plaquer contre la persienne 2 comme expliqué précédemment.On the figure 5 another embodiment of the device according to the invention is shown. We see that the column 8 is extended at its free end by a flange 16 on which the plate 4 rests. This flange 16 makes it possible to fix the plate 4 by means of screws 17. At the level of each rod 7, the plate 4 can be fixed to the flange 16 by three screws 17 (only one screw is shown). These screws constitute the shearable connection means of the plate 4 on the spacer 8. They are provided with a thread which is broken under the effect of the breath creating the pressure field allowing the plate 4 to slide along the Column 8 and to press against the shutter 2 as previously explained.

La plaque 4 est fixée au véhicule sensiblement comme décrit précédemment. On fixe d'abord les colonnettes 8 à la plaque 4 à l'aide des vis 17 puis on positionne les rondelles plates 14. On introduit ensuite les tiges 7 dans les colonnettes et on visse enfin ces tiges dans la paroi 3 du véhicule.The plate 4 is attached to the vehicle substantially as previously described. The columns 8 are first fixed to the plate 4 by means of the screws 17, then the flat washers 14 are positioned. The rods 7 are then inserted into the columns and these rods are finally screwed into the wall 3 of the vehicle.

Après fonctionnement du dispositif lors de l'explosion d'une mine il suffit de remplacer les entretoises 5 afin de rétablir l'intégrité de la fonction de la persienne.After operation of the device during the explosion of a mine just replace the spacers 5 to restore the integrity of the function of the shutter.

La figure 6 montre un autre mode de réalisation du dispositif selon l'invention. On voit que la colonnette 8 comporte un logement 19 à l'intérieur duquel se loge la tête 9 de la tige 7 (qui est ici une vis engagée dans un taraudage de la paroi 3). La plaque 4 est fixée à la colonnette 8 par un cordon de soudure 18 qui constitue le moyen de liaison cisaillable. Le cordon de soudure 18 est rompu sous l'effet du souffle créant le champ de pression permettant à la plaque 4 de coulisser le long de la colonnette 8 et de se plaquer contre la persienne 2 comme expliqué précédemment.The figure 6 shows another embodiment of the device according to the invention. We see that the column 8 has a housing 19 inside which is housed the head 9 of the rod 7 (which is here a screw engaged in a tapping of the wall 3). The plate 4 is fixed to the column 8 by a weld bead 18 which constitutes the shearable connection means. The weld bead 18 is broken under the effect of the blast creating the pressure field allowing the plate 4 to slide along the column 8 and to press against the louver 2 as previously explained.

Claims (10)

  1. A protection device for a shutter (2) delimited in the wall (3) of a vehicle body, characterised in that it comprises a plate (4) arranged at a distance from the shutter (2) by means of spacers (5) integral with the vehicle wall (3), the plate being made integral with each spacer (5) by shearable linking means or means deformable through the effect of a pressure field exerted on the plate, the latter being able to slide along the spacers to obstruct the shutter (2) under the effect of the pressure field.
  2. A protection device according to Claim 1, characterised in that each spacer (5) is constituted by a rod (7) fastened to the wall (3) and a column (8) coaxial to the rod, the plate (4) sliding with respect to this column.
  3. A protection device according to Claim 2, characterised in that the plate (4) has a counterbore (11) with a hole (4a) through which each rod (7) passes, the counterbore (11) defining a thinned zone (12) in the plate which constitutes the shearable or deformable linking means, the head (9) of the rod (7) being engaged in the counterbore (11) so as to press on said zone (12).
  4. A protection device according to Claim 3, characterised in that the thinned zone (12) incorporates slits enabling the deformation of this thinned zone, the deformed parts of the thinned zone (12) further ensuring the retention of the plate (4) against the shutter by pinching the columns (8).
  5. A protection device according to any one of Claims 2 to 4, characterised in that the plate (4) presses on the column (8) and is held in place by the rod (7) by means of a head (9) or nut.
  6. A protection device according to Claim 5, characterised in that at least one washer (13, 14) is positioned between the head (9) and the plate (4).
  7. A protection device according to Claim 2, characterised in that the column (8) is equipped with a flange (16) onto which the plate (4) is fastened using screws (17), the plate (4) being released by breaking the threading of each screw (17) which thereby constitutes the shearable or deformable linking means.
  8. A protection device according to Claim 2 characterised in that the end of the column (8) is fastened to the plate (4) by a welding bead (18) which constitutes the shearable linking means.
  9. A protection device according to any one of the above Claims, characterised in that the plate (4) is an armour plate.
  10. A protection device according to any one of the above Claims, characterised in that the plate (4) conforms to the dimensions of the shutter (2).
EP10290533A 2009-10-19 2010-10-06 Protection device for a grating of the body of a vehicle Not-in-force EP2312258B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10290533T PL2312258T3 (en) 2009-10-19 2010-10-06 Protection device for a grating of the body of a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0904999A FR2951534B1 (en) 2009-10-19 2009-10-19 DEVICE FOR PROTECTING A PERSIAN OF THE BODY OF A VEHICLE

Publications (2)

Publication Number Publication Date
EP2312258A1 EP2312258A1 (en) 2011-04-20
EP2312258B1 true EP2312258B1 (en) 2013-02-20

Family

ID=42174348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10290533A Not-in-force EP2312258B1 (en) 2009-10-19 2010-10-06 Protection device for a grating of the body of a vehicle

Country Status (4)

Country Link
EP (1) EP2312258B1 (en)
ES (1) ES2403681T3 (en)
FR (1) FR2951534B1 (en)
PL (1) PL2312258T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR888358A (en) * 1942-03-31 1943-12-10 Protective device against bullets and splinters
US4167889A (en) * 1975-09-16 1979-09-18 Clouth Gummiwerke Aktiengesellschaft Double armor plate construction
EP0009654B1 (en) * 1978-09-27 1983-02-23 H.H. Robertson Company Blast-resistant barrier
DE4117194C2 (en) * 1991-05-25 1994-05-19 Krupp Ag Hoesch Krupp Grating system
DE10020251C2 (en) * 2000-04-25 2003-10-09 Burgmann Security Gmbh Bullet protection in lightweight construction

Also Published As

Publication number Publication date
PL2312258T3 (en) 2013-07-31
EP2312258A1 (en) 2011-04-20
ES2403681T3 (en) 2013-05-21
FR2951534A1 (en) 2011-04-22
FR2951534B1 (en) 2011-12-09

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