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
  • F41H5/24—Armour; Armour plates for stationary use, e.g. fortifications ; Shelters; Guard Booths
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
  • E05G1/00—Safes or strong-rooms for valuables
  • E05G1/02—Details
  • E05G1/024—Wall or panel structure
• • 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
  • F41H5/04—Plate construction composed of more than one layer
  • F41H5/0471—Layered armour containing fibre- or fabric-reinforced layers

Definitions

• the present invention relates to an anti-intrusion security wall.
• This type of wall can be implemented in the context of security, especially in institutions such as banks, museums, etc.
• a first type of anti-intrusion security wall made of concrete or reinforced concrete, has the disadvantage of being crumbly under the effect of shock and heat. To be sufficiently protective, this type of wall must have a substantial thickness, which can be cumbersome and especially create an additional load on the foundations of buildings that are not initially sized for, especially if the walls of security must be located on one floor. Thus, adding security walls would require strengthening the foundations or at the extreme of rebuilding a new building, which in both cases requires a substantial budget.
• a second type of anti-intrusion security wall, made of metal has the disadvantage of being easily and quickly degraded using tools such as a grinder. This type of wall is also heavy and causes the building and its foundations to have consequences similar to those caused by concrete walls.
• Anti-ballistic devices consist of stacking layers of different tenacity, described for example in WO 2012/150169. These walls, however, are easily degradable with cutting tools, especially when they are attached to walls or partitions. In the same way, there are protection devices against the impact of high energy waves, consisting of a superposition of several layers of, as described in WO 2012/128253. These devices have the disadvantage similar to antiballistic devices to be easily degraded by cutting tools.
• the object of the present invention is to provide a device that overcomes all or part of the above problems.
• the anti-intrusion wall comprises a braking layer capable of sufficiently braking a rotary penetration tool to make the latter at least partially inoperative.
• This layer is placed behind an outer dressing layer on the side of the risk of aggression.
• rotary tool penetration for example means a drill or a grinder. It has been found that such a layer could be made relatively light or even particularly light while offering a new resistance to the aggressors and surprising for them.
• Such a wall can be used to secure places that could potentially be the target of attack, such as a museum, bank, etc. It is ideally designed to withstand attacks including drill, dice, assault rifle, flamethrower, explosive, mass, ...
• the braking layer comprises filaments which, by their nature and their arrangement, hang around the rotating parts of the rotary tools during an attempt to disintegrate.
• the filaments intermingled with the rotating parts of the tools exert additional efforts on the tool motors, imminent their capabilities or causing malfunctions.
• the tools whose rotating part is intermingled are no longer able to dislodge the wall.
• the filaments form the braking layer in one piece, which makes it all the more difficult and difficult to disengage a tool whose rotating part is intermingled in the filaments which do not pull away from the braking layer.
• the filaments have a toughness of from about 50 cN / tex to about 350 cN / tex.
• the filaments have an elongation at break of from about 3% to about 6%.
• the titration of the braking layer is between about 300 dtex and about 3300 dtex.
• the filaments are continuous filaments so as to become entangled in the rotating tools and to hinder the release of the tools.
• the filaments are aramid, unsaturated polyester or polyethylene; these materials having substantially the preceding characteristics.
• the braking layer is a textile with three dimensions, in particular a fabric with three dimensions.
• the combination of the features mentioned above is particularly effective against aggression by rotary tools.
• the debiting of said braking layer is between about 30 picks / cm and about 150 picks / cm.
• the braking layer is typically flexible and has freedom of movement. This makes it more difficult to degrade the external covering layer by means of tools such as a crowbar since the braking layer does not have a support surface that is rigid enough for the crowbar to pry . In addition, the ends of such a tool get entangled in the filaments, making its use more difficult.
• the thickness of the braking layer is preferably between about 1 mm and about 5 mm.
• the wall comprises at least one internal sandwich-type composite panel with a foam core between two skins. These panels ensure the holding of the wall and the absorption of shock waves caused by explosives or damage to the ground.
• the skins solidify the panels and can be made of aramid, glass or carbon.
• the two skins are interconnected by tensile bridges. These bridges give good resistance to the tearing of the skins, which provides protection to the soul in case of degradation, including attempted tearing and scraping.
• the thickness of a panel is between about 15 mm and about 40 mm.
• the thickness is adapted so that the rotating part of the tool passes through the layer and gets tangled in the braking layer directly behind, thereby making it inoperative tool with effects similar to those previously mentioned.
• the at least one braking layer comprises at least two layers
• the wall comprises at least one panel
• the at least one panel includes a panel separating the two layers of braking, so as to increase the resistance to aggression.
• the at least one layer and the at least one panel are fixed to each other independently of the external covering and may for example be fastened together by localized mechanical means such as through bolts.
• the fasteners are arranged so as to leave enough freedom for the braking layers to promote the interaction of the filaments in the rotary tools.
• the fastening means contribute to defining the thickness of the braking layer at a value chosen large enough to promote the interaction of the filaments with the rotary tools.
• the outer covering conceals the fastening means of the at least one layer and the at least one panel.
• the outer covering is fixed by gluing to the underlying braking layer to have a homogeneous appearance without apparent fastening system, such as bolts for example, which may have weaknesses.
• joints between the components of the outer covering are offset from underlying joints of the inner layers to limit degradation caused by a breakable tool, such as a crowbar.
• the wall consists of two braking layers separated by a substantially rigid panel and located between the outer covering and an internal lining, so as to increase the resistance to attack.
• the inner lining may be a substantially identical panel panel intercalated between the two layers of braking.
• the surface density of the wall is between about 25 kg / m 2 and about 35 kg / m 2 . It can thus be easily installed without adding to the building and its infrastructure an exceptional load requiring expensive and delicate reinforcements to implement.
• the thickness of said wall is between about 70 mm and about 90 mm.
• the external covering is an anti-ballistic armor providing protection against assault with firearms (assault rifles, apelooka, etc.).
• all the materials constituting the wall undergo a flame retardant treatment.
• the invention relates to an anti-intrusion wall comprising a substantially rigid outer cladding layer, in particular a metal plate, even more particularly an anti-ballistic shield, placed on the side exposed to the aggressions, and a flexible layer, in particular a layer composed of filaments, fibers or son arranged in volume in air, the flexible layer being placed on the side of the outer covering layer which is opposed to the risk of aggression.
• the flexible layer is placed between the outer cladding layer and a composite panel, in particular of the sandwich type, preferably with bridges connecting the two skins of the sandwich panel, or with fibers leaving the skins and implanted in the liner. soul of the panel without necessarily joining the other skin.
• the invention relates to an anti-intrusion wall comprising an outer covering layer, preferably having all or some of the features mentioned above about it, placed on the side exposed to the aggressions and formed of plates assembled between they according to joints which are offset relative to joints between modular elements forming the wall of the side of the outer cladding layer which is opposed to the risk of aggression, these modular elements each having all or some of the features presented above concerning at least one rotary tool braking layer, a flexible layer behind the lining layer and / or a composite panel, in particular of the sandwich type.
• the invention relates to an anti-extrusion wall comprising inside a composite panel having a foam core between two fibrous skins interconnected by tensile-resistant bridges, preferably in combination with all or some of the features described.
• an outer lining layer placed on the side exposed to aggression, a flexible layer adjacent to this lining, and / or a rotating tool braking layer.
• FIG. 1 illustrates a detail of a sectional view of the wall according to one embodiment
• FIG. 2 shows the arrangement of the different layers, including the offset of the joints between the inner layers and the outer shell.
• the security wall 1 protects an area 30 with respect to external aggressions and intrusions 4.
• the safety wall 1 comprises a braking layer 2, placed behind an outer cladding layer 3, which is on the side exposed to the risk of aggression 4.
• the braking layer 2 is capable of sufficiently braking a tool rotary penetration to make the latter at least partially inoperative.
• rotary tool penetration for example means a drill or a grinder.
• the time required to destroy a wall 1 according to the example presented is greater than 30 minutes.
• the braking layer 2 comprises filaments 5 which, by their nature and their arrangement, hang around the rotating penetration tools in case In attaching to the rotating parts of the tools, the entangled or entangled filaments 5 exert additional forces on the tool motors and impart their capabilities or cause malfunctions. . Thus, the tools are no longer able to disengage the wall 1.
• the filaments 5 form the braking layer 2 in one piece, which makes it all the more difficult and difficult the release of a tool whose the rotating part is intermingled in the filaments 5 which remain solids of the braking layer 2 due to their length and toughness.
• the filaments by their length and their position can, once in engagement with the tool, be pulled over a certain length of time to become wedged with the tool, and then resist this movement by their bond with the layer, and without breaking due to their sufficient tenacity.
• the filaments have a toughness of from about 50 cN / tex to about 350 cN / tex in order to be both flexible and resistant.
• the filaments 5 have an elongation at break of from about 3% to about 6%.
• the filaments 5 have a titration of between about 300 dtex and 3300 dtex.
• the filaments 5 are continuous filaments so as to become entangled in the rotary tools while remaining integral with the braking layer 2.
• the filaments 5 are aramid.
• the diameter of the braking layer 2 is between about 30 d / cm and about 150 / cm.
• the braking layer 2 is a fabric woven in an organized pattern with three dimensions.
• the braking layer 2 is composed of said filaments and air, it is extensible and compressible.
• the density of the braking layer 2 is such that the filaments 5 are free enough not to be forced against the rotating tools, which helps to prevent the cutting or tearing of the filaments 5, and allows the twisting and intermingling.
• the arrangement of the filaments is such that at rest the filaments are sinuous, which gives them a reserve of length to be pulled by the rotary tool before starting to brake the rotary tool.
• the braking layer 2 is at the same time a flexible layer, compressible in the direction of the thickness.
• a layer having such flexibility and placed behind the relatively rigid outer covering 3 makes it more difficult to degrade the outer covering 3 by means of tools such as a crowbar since it does not constitute a bearing surface. firm enough to exert a crowbar lever that an aggressor would use to tear out the outer covering.
• the thickness of the braking layer 2 when installed is approximately equal to 3mm.
• the wall 1 comprises two internal composite panels 6 and 7, of sandwich type with a foam core 9 between two skins 10. These panels 6 and 7 ensure the holding of the wall 1 and the absorption of the waves of shocks caused by explosives or mass attacks.
• the skins 10 solidify the panels and are preferably made of weaves of aramid fibers.
• the two skins 10 of a panel 6 are interconnected by bridges 11 resistant to traction. These bridges 11 give good resistance to tearing of the skins 10, which provides structural strength to the composite panels 6.
• the bridges 11 are made by subculture of the fibers constituting the skins 10.
• the thickness of a panel 6 is approximately equal to 20mm. In case of cutting with a rotary tool, this thickness is adapted so that the rotating part of the tool passes through the thickness of the panel 6 and is entangled in the filaments 5 of the next braking layer 8.
• the wall comprises five layers, the anti-ballistic outer covering 3 covering the inner layers 20 successively comprising a first braking layer 2, a first sandwich panel 6, a second braking layer 8 and a second sandwich panel 7 , this one corresponding to the internal dressing. It was found that a wall thus designed could withstand up to thirty minutes an intrusion attempt by well-equipped people.
• the inner layers 20 are fixed together independently of the outer skin 3 by bolts 12 through. These bolts 12 are arranged horizontally at the top of the inner layers 20 to allow degrees of freedom to the braking layers 2 and 8 and to promote the intermingling of the filaments 5 in the rotary tools.
• the bolts 12 are equidistant from about 1m.
• the bolts 12 contribute to defining the thickness of the braking layers 2 and 8 at a value chosen large enough to promote the interaction of the filaments 5 with a rotary penetration tool.
• the external covering 3 is fixed by gluing to the first braking layer 2 in order to have a homogeneous appearance and to conceal the bolts 12 for fixing the inner layers 20.
• the seams 13 between the elements constituting the outer covering 3 are offset by relative to the underlying joints 14 of the inner layers 20 so that an attack of the wall at a seam 13 does not give direct access to a seam 14 and does not allow to know where is a seam 14.
• the seams 13 and 14 are vertical.
• the density of the wall 1 is substantially equal to 30 kg / m 2 . The wall 1 can thus be installed easily without overloading the building and / or its structure, thus without requiring expensive and delicate reinforcements to implement.
• the thickness of the wall 1 is substantially equal to 80 mm.
• the external cladding 3 is an anti-ballistic armor offering protection against assault with firearms (assault rifles, apelooka, ).
• the inner layers 20 are fixed on an existing wall or rails by a bolt device 12.
• the anti-ballistic coating layer 3 is adhered to the outer surface of the inner layers 20 so that the joints 14 of the inner layers 20 and the joints 13 of the antiballistic coating layer 3 are shifted.

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

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• 2013
  • 2013-02-13 FR FR1351222A patent/FR3002031B1/fr not_active Expired - Fee Related
• 2014
  • 2014-01-14 EP EP14702200.8A patent/EP2956736A1/de not_active Withdrawn
  • 2014-01-14 WO PCT/EP2014/050571 patent/WO2014124770A1/fr active Application Filing

Non-Patent Citations (2)

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