EP2425082B1 - Device for blocking a passage - Google Patents

Device for blocking a passage Download PDF

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Publication number
EP2425082B1
EP2425082B1 EP10723225.8A EP10723225A EP2425082B1 EP 2425082 B1 EP2425082 B1 EP 2425082B1 EP 10723225 A EP10723225 A EP 10723225A EP 2425082 B1 EP2425082 B1 EP 2425082B1
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EP
European Patent Office
Prior art keywords
bar
extendable
chamber
screen
slats
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.)
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Application number
EP10723225.8A
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German (de)
French (fr)
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EP2425082A2 (en
Inventor
Yvan Cardona
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Libervit
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Libervit
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Publication of EP2425082A2 publication Critical patent/EP2425082A2/en
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Publication of EP2425082B1 publication Critical patent/EP2425082B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
    • E04G21/241—Safety or protective measures preventing damage to building parts or finishing work during construction for temporarily closing door or window openings
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B2009/002—Safety guards or gates
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen

Definitions

  • the present invention relates to an autonomous protection device for temporarily obstructing a passage such as a corridor, a door or a window.
  • Roller shutter type systems have also been proposed, particularly in FR2 360 073 , WO 94/20723 and FR 2 814 230 .
  • these systems also require mechanical fastening methods on the boards of the bays to be closed.
  • the present invention relates more particularly to a protective device for security personnel, such as law enforcement, police, gendarmerie or army, including groups of rapid interventions.
  • the purpose of the present invention is to provide a device for temporarily obstructing a passage such as a bay or a corridor to prevent or delay the crossing of this passage by consenting or non-consenting persons and / or to prevent the projection of objects through said device, in particular from the outside to the inside or from the inside to the outside when the device is placed against a door or window. More specifically, this type of device aims to prevent suicidal defenestration during the arrest of madmen, but also aims to channeling people by temporarily blocking certain passages, such as corridors, during demonstrations or crowds in public or private places.
  • an object of the present invention is to provide an autonomous protection device of this type which is easy and especially quick to fix and remove by the intervention personnel (hereinafter referred to as "operator”), this in order to reduce to a minimum the exposure time of the intervention personnel to the risks of projections and / or aggression during this installation of the device.
  • the present invention provides an autonomous protection device for temporarily blocking a passage such as a corridor, a door or a window characterized in that it comprises at least one longitudinally extendable bar, preferably a telescopic bar, actuable extension by a jack, said bar being adapted to be removably locked in extension between two wall surfaces defining said passage referred to as locking surfaces, said extensible bar supporting one or preferably a plurality of element (s) d ' obstruction to form a protective screen obstructing at said passage, preferably the one or more obstruction elements being removably attached thereto.
  • Locking jack which is hydraulic, electric or preferably pneumatic is particularly simple and quick to implement.
  • the device can be adapted to the existing walls without adaptation or transformation thereof.
  • blocking surfaces is understood here to mean surfaces which can be included in partitions or walls facing each other (parallel) forming a corridor delimiting a said passage or surfaces of frame uprights or door or window frames or preferably in the thickness portion of the wall or masonry surfaces of a frame of said door frame or window located outside the bay (usually called “table").
  • obstruction screen means a solid or preferably perforated surface, but whose openings do not allow the passage of an individual and / or reduce the risk of crossing said screen by projectiles of given dimensions, suitable for be thrown by hand, through said obstruction element and / or where appropriate between the various obstruction elements, including projectiles of the type launched by the demonstrators against the police.
  • said screen is formed by a single obstruction element made of foldable, preferably perforated, flexible material or a plurality of rigid obstruction elements which are solid but spaced from one another so as to form a perforated screen.
  • said screen will be constituted by a plurality of obstruction elements consisting of spaced rigid slats, preferably arranged parallel to each other and preferably perpendicular to said bar.
  • said screen will be made of a net or a solid sheet material, flexible, anti-ballistic property of the bulletproof textile complex type.
  • a perforated screen has a double advantage. First of all, its weight is reduced, its size of conditioning before use is reduced, and its wind resistance is reduced making it easy to pose outdoors in windy conditions. Second, it allows not to completely obscure the passage and therefore maintain a possibility of visual inspection of the situation by the operator on the other side of the screen.
  • said expandable bar may be positioned horizontally or vertically in the frame or the passage to be closed, and said one or more obstruction elements may be arranged transversely, perpendicularly to said bar.
  • the device according to the invention can be installed by positioning the said extensible bars or bars between the two blocking surfaces, then realizing the locking by extension of the longitudinal ends of the said bar or bars against said blocking surfaces.
  • the obstruction element or elements can be prefixed on said bar or bars in the case where it is a flexible material element such as a net or a complex textile material mentioned above which can be conditioned under folded form.
  • the obstruction elements are rigid elements such as slats, they will advantageously be mounted on the bar after locking of said bar in extension against the locking surfaces.
  • the device according to the invention comprises a single said expandable bar.
  • said obstruction element or said plurality of obstruction elements is or are rigid or able to be kept in the form of a screen by said single expandable bar.
  • the device according to the invention in the form of a kit or set of elements ready to mount can be packaged with a small footprint which also contributes to facilitate its movement on site and its installation by the staff of 'intervention.
  • the device comprises a plurality of said obstruction elements consisting of rigid slats preferably of two to five slats.
  • said rigid slats are arranged parallel to each other and preferably perpendicularly to said bar.
  • said expandable bar is disposed along a transverse median axis of said obstruction element (s).
  • This type of single bar device requires a laying on a facade having a wall portion forming abutment wall located above and / or below said bar if it is disposed horizontally, or laterally if said bar is arranged vertically, so that the bar and the slats are prevented from pivoting because said slats abut at their end against said abutment wall.
  • this single bar device can be juxtaposed to a second single bar device with slats whose ends can be fixed, or preferably only fit into the ends of the slats of the first device.
  • This nesting constituting an obstacle to a pivoting said slats and bars of the two devices.
  • the two devices are arranged one above the other in the case of obstruction of a corridor between two vertical locking surfaces or one next to the other in the case where the two said locking surfaces are arranged horizontally one above the other.
  • the device comprises a single said expandable bar and a plurality of said obstruction elements consisting of rigid slats preferably of two to five slats arranged parallel to each other and perpendicular to said bar, said slats having an end with a female shape and the opposite end with a male complementary shape so that the male shape of the end of the slats of a first device can fit into the female form of a second identical device.
  • these rigid slats can be supported by a plurality of extensible bars, that is to say at least two extensible bars, arranged parallel to each other.
  • the device can be implemented without risk of pivoting slats even in the absence of upper or lower wall surface above or below the device, in particular the device can be implemented to obstruct a corridor .
  • said protective screen is a flexible material screen capable of being stretched with the aid of a tensioning element, on the one hand stretched between said tensioning element and said first stretchable bar and of on the other hand stretched between the 2 said locking surfaces, said screen being fixed on one of its sides to said bar and said tensioning element cooperating with the opposite end of said screen.
  • said screen made of flexible material consists of a net.
  • said tensioning element may be a rope or rope capable of being held by one or more operators.
  • said tensioning element is constituted by a second expandable bar.
  • said device comprises two said extensible bars and a flexible material screen capable of being stretched between the two said extensible bars to which two opposite sides of said screen are respectively fixed.
  • the passage to be obstructed requires the juxtaposition of several devices according to the invention, of the screen type of flexible material stretched between two said extensible bars, in particular for obstructing a corridor to a sufficient height, it implements a pre-mounted device with three extensible bars supporting two said screens, of the flexible material type, whose opposite sides of each screen are fixed to a said bar, with a median bar interposed between the adjacent sides of two superposed screens on which said middle bar said sides of the two superposed screens are fixed.
  • said expandable bar comprises a jack constituted by a tubular jack body and at least one telescopic jack rod extendable in the longitudinal direction of the tubular jack body, from the inside. outwardly of said cylinder body at one end of said cylinder body.
  • the jack may be a hydraulic cylinder, electric, or preferably a pneumatic cylinder given the qualities of lightness, small footprint and speed of action of a pneumatic actuation.
  • said stretchable bar comprises a pneumatic jack self powered by a compressed air cartridge, preferably at least 50 bar, adapted to allow the extension of said cylinder rod, preferably several times, more particularly two five times, said cartridge being rechargeable or replaceable.
  • the pressurization of the pneumatic cylinder can be done quickly by manual control such as pushing a button.
  • said telescopic bar is extensible by mechanical actuation, preferably manually and at least at one end pneumatically using a said cartridge.
  • the operator can perform a manual pre-adjustment of the extension of the cylinder rod or rods mechanically as a function of the approximate distance between the two locking surfaces by making an extension to a size smaller than the distance between the two. locking surfaces, before positioning the device between the two locking surfaces. Then, the operator can finalize the extension and locking of the cylinder rod or rods after placement of the device between the two blocking surfaces with a longitudinal end of the telescopic bar wedged against one of the two locking surfaces and blocking the second blocking surface by extending the extensible rod at the other end by implementing the cylinder pneumatically. It is therefore understood that the pneumatic cylinder serves only for the final blocking corresponding to an extension of relatively short length over a length of less than 10 cm or even less than 5 cm.
  • This embodiment has a double advantage.
  • the reduction of this exposure time is essential because it also corresponds to a time during which the operator is also positioned between the two blocking surfaces and can therefore be exposed to projectile jets and / or other endangerment by people located on the other side of the device and locking surfaces relative to the operator and wanting to oppose the establishment of the device is performed.
  • the second advantage is that the extension performed pneumatically being of relatively short length, it requires only a cartridge of less space. In practice, for a cylinder body about 5 to 10 cm in diameter and 80 to 110 cm, with a pneumatic extension of 5 to 10 cm, a Compressed air cartridge at 50 bar represents a footprint of 5 to 10 cm in length and 1 to 4 cm in diameter.
  • said pneumatic cylinder comprises a device for quick release of said bar, this quick release device comprising at least one purge valve whose opening allows to release compressed air injected into a first chamber inside said body cylinder from said cartridge.
  • said rapid release device comprises a second chamber inside the cylinder body and compressed air reserve in a third chamber, the release of the compressed air contained in said first chamber allowing the rapid retraction of at least one said cylinder rod caused by said reserve of compressed air contained in said third chamber and released in said second chamber because the pressure of the compressed air in said third chamber is greater than atmospheric pressure and lower at the pressure of the compressed air in said first chamber after injection of the compressed air contained in said cartridge before opening said purge valve.
  • said one or more obstruction elements are fixed on said removable bar removably and interchangeably.
  • said slat-shaped obstruction elements are themselves extensible in length in the longitudinal direction of the slats.
  • the slats consist of two slats of different lengths fixed and sliding against each other. It is understood that one can thus change the batten of greater length and adapt on the batten of smaller length of the large slats of different sizes from those they replace.
  • the said slats or solid panels or perforated massive can be made of various materials such as plastic, carbon, preferably Kevlar type, wood, metal, preferably aluminum.
  • the protection device represented on the Figure 1A , comprises a single extensible bar 2 on which are fixed, removably by clips (not shown), three rigid slats 4 disposed perpendicular to said expandable bar 2, substantially in their median portions.
  • the spacing 5-1 between the three slats 4 allows to open the screen 5a constituted by all three rigid slats 4.
  • the distance 5-1 between two successive slats is less than or equal to the width of a slat .
  • Each slat 4 is formed of two complementary slat elements 4a, 4b, nested one inside the other and sliding longitudinally one in the other.
  • the male element 4b protrudes from the female element 4a at both ends thereof.
  • the user can have several lengths of male elements 4b, so as to adapt them according to the dimensions of the opening of the passage to be obstructed with the device according to the invention.
  • the male element 4b protrudes only on one side, so that the batten comprises two distinct ends, a male upper end 4-1 and a lower female end 4-2. Given the height of the window on the board of which is installed the device on the Figure 1B a male element 4b protruding only on one side is sufficient.
  • this embodiment makes it possible to couple, in a juxtaposed manner, two devices one above the other to obstruct a corridor 10-2, as shown in FIG. figure 1C , by fitting the upper male ends 4-1 of the slats of the lower device 1b in the lower female ends 4-2 of the same upper device 1a according to the invention disposed above the device 1b.
  • the expandable bar 2 of the device is positioned, substantially halfway up the window table or nearby, in the outer thickness of the outer wall to the window 10-1.
  • the adjustment of the length of the slats 4 is necessary so that, as shown on the Figure 1B , the ends 4-1 and 4-2 of each batten 4 abut on an upper abutment wall 10c and, respectively, on a bottom abutment wall 10d, corresponding to the front portions located above and below the table of window 10-1.
  • These extensions slats above and below the table of the window can prevent the pivoting of the entire device, following manipulation by a person seeking to oppose this obstruction and trying to rotate the laths in rotation around the extensible bar 2 despite the blockages of end stops 5 against the lateral blocking surfaces 10a, 10b of the window panel.
  • the extensible bar 2 as shown on the figure 3 comprises a hollow tubular longitudinal body 3-1, enclosing two extensible rods 2-1 and 3-2, respectively at each end.
  • the first rod 2-1 at the left end is expandable and retractable by a mechanical device consisting of the combination of a manual actuating element 2-7 of a lug 2-8 cooperating with a plurality of notches or orifices 2-9, spaced along the length of the rod so as to adjust the extension length of the rod 2-1 and lock it to a given extension length.
  • a mechanical device consisting of the combination of a manual actuating element 2-7 of a lug 2-8 cooperating with a plurality of notches or orifices 2-9, spaced along the length of the rod so as to adjust the extension length of the rod 2-1 and lock it to a given extension length.
  • This first mechanical adjustment of the first rod 2-1 is manual and allows to preset the length of the expandable bar before the intervention, depending on the size of the table of the window 10-1 or the corridor 10-2 to be obstructed.
  • the second rod 3-2 at the other end of said bar which constitutes a pneumatic cylinder rod actuated by an onboard power supply consisting of a compressed air cartridge 3-3 fixed on said bar, may complete the extension. of the bar and ensure the blocking thereof against the two lateral blocking surfaces 10a and 10b of the table, under the effect of pneumatic pressure.
  • the tubular body 3-1 has at its end a closure 3-9, which has an orifice through which the second cylinder rod 3-2 can slide sealingly through O-rings 3-11 during the extension and retracting said second cylinder rod.
  • the internal cylindrical cavity of the tubular body 3-1 comprises a first fixed block 3-4 within it.
  • Said second cylinder rod 3-2 has at its inner end a second block 3-5 integral with said second cylinder rod and sliding therewith.
  • the first block 3-4 and the second block 3-5 delimit with the cylindrical wall of the tubular body of cylinder 3-1 a first chamber 2-3 of variable volume according to the position of the second block 3-5.
  • the second block 3-5 secured to the inner end of the second cylinder rod 3-2 defines, with the fixed closure block 3-9, a second chamber 2-4 of volume that varies inversely with that of the first chamber 2- 3 when the second block 3-5 slides inside the cylinder body 3-1.
  • the second block 3-5 abuts against the closure block 3-9 at the end of the cylinder body 3-1, when the second rod 3-2 is in maximum extension, the volume of the first chamber 2-3 being maximum while that of the second chamber 2-4 is zero.
  • the second block 3-5 abuts against the first block 3-4 when the second cylinder rod 3 is in maximum retraction, the volume of the second chamber 2-4 being maximum while that of the first chamber 2-3 is zero.
  • Said first block 3-4 also delimits a fourth chamber 2-2 between the end 2-1a of the rod 2-1 and said first block 3-4, which makes it possible to perform the first manual mechanical adjustment of the extension of the first rod 2-1.
  • V a , V c and V b are such that P b is 5 to 10 bar less than the pressure P a of the compressed air contained in the cartridge 3-3 injected into the first chamber 2-3, of the order from 50 to 150 bar
  • the cartridge 3-3 is actuated so as to inject compressed air into said first internal chamber 2-3 via an orifice 3-4a.
  • the increase of the pneumatic pressure in said first internal chamber 2-3 causes the sliding of the second block 3-5 and thus of the cylinder rod 3-2 in maximum extension.
  • this jack makes it possible to obtain a pressurization of the ends of the bars against the wall surfaces (called “blocking surfaces”) delimiting the passage to be obstructed, with a force of about 30kN greater than those generated by manually operable spring mechanisms described in the two documents cited.
  • Locking by jack is not only simpler, but it allows use as an anti-burglary security device, or even to prevent a defenestration, which distinguishes it from the uses envisaged in the two documents mentioned above.
  • the quick release of the expandable bar 2, for removal of the device after use, is also pneumatically as follows.
  • a bleed valve 3-8 of the first chamber 2-3 is opened so as to reduce the pressure in the first chamber 2-3, causing the second block 3-5 to move slidably within the body. tubular 3-1 and, therefore, the displacement of the cylinder rod 3-2 to abut against the first block 3-4 inside the tubular cylinder body 3-1.
  • This retraction of the cylinder rod 3-2 towards the inside of the cylinder body 3-1 is made by the compressed air contained in the internal reserve 3-6 of the cylinder rod 3-2 which via the openings 3-7 is introduced into the second chamber 2-4, disposed between the second block 3-5 and said end closure 3-9, at the end of the cylinder body 3-1.
  • the compressed air introduced into the second chamber 2-4 expels the second block 3-5 inwardly of the cylinder body 3-1 and thus causes the cylinder rod 3-2, which is secured thereto, to the inside. of the cylinder body 3-1, since the terminal closing block 3-9, through which slides the cylinder rod 3-2, is fixedly mounted.
  • the second block 3-5 slides sealingly through its O-rings 3-10 within the cylinder-wall cylinder body 3-1.
  • This self-locking and pneumatic locking system is both lighter, less cumbersome and faster to implement than mechanical systems, especially spring-loaded systems, not to mention the relatively low cost.
  • Cartridge 3-3 is sized to allow two to five extensions of the cylinder rod 3-2.
  • the extension stroke of the cylinder rod 3-2 is predetermined by the distance between the first block 3-4 and the closure block 3-9 at the end of the cylinder body 3-1. In general, this distance is provided over a length of a range of 5 to 10 cm.
  • the cylinder 3 consists of all the elements 3-1 to 3-11 mentioned above.
  • the set of extensions of the first rod 2-1 and the second rod 3-2 cylinder allows, in the model shown on the figure 3 , to increase the length of the expandable bar 2 by about 50% when the lug 2-8 cooperates with the first notch 2-9 (the notch 2-9 the leftmost on the figure 3 ).
  • the first rod 2-1 will be released, relative to the end of the body tubular 3-1, of a length identical to the maximum extension length of the cylinder rod 3-2 at the opposite end.
  • elastomer blocks 2-5 At the ends of the rods 2-1 and 3-2 are arranged elastomer blocks 2-5, with embossing elements 2-6 on their outer faces, so as to promote adhesion to the locking surfaces 10a, 10b. .
  • the operator descends from the roof of the building and arrives laterally at the window, above it, usually upside down. It positions the end of the first rod 2-1, previously set extension according to the width of the table, bearing against the surface 10b side of the table of the window 10-1. Then it realizes the locking of the bar 2 by extension of the cylinder rod 3-2 against the opposite blocking surface 10a of the window panel, releasing the compressed air contained in the cartridge 3-3 within said first room 2-3.
  • the device is pre-mounted with the slats 4 fixed on the expandable bar 2, so that the exposure time of the operator opposite the opening of the bay is reduced to maximum, especially in the case where it could be exposed to hostile aggressions on the other side of the window inside the building.
  • the male elements slats 4b having been slid out before the intervention, so that the total length of the slats allows a stop of their upper ends 4-1 and 4-2 lower against the upper walls 10c and lower 10d, above and below the window table.
  • the expandable bar 2 Once the expandable bar 2 in the locking position, it can be provided to fix the slats 4 at a clip system (not shown) on the bar 2.
  • the extensible bar 2 is preferably made of aluminum and the slats 4 of carbon-based material Kevlar type, so as to combine lightness and strength.
  • the net is made of high-strength polypropylene polymer with mesh sizes of 25 to 40 mm, for example.
  • This embodiment is advantageous because less cumbersome transport to the extent that the net can be folded on itself.
  • this tensioning element is advantageously a second extendable bar 2b.
  • longitudinal handles 7 are provided along the bars 2, and cleared from them, so that it is possible to position the bar between the two locking surfaces 10a and 10b and against a first blocking surface on one side, without the operator being visible from inside the window.
  • the operator descends from the roof of the building and places, first of all, a first expandable bar near the top end of the board.
  • the net is already prefixed by carabiners 8-1 on the first bar 2a, along one of its sides, and also prefixed along the opposite side to the second bar 2b. After blocking the first bar 2a, which are held temporarily fixed, the second bar and the net, it releases the second bar and the net is unwound.
  • the operator always descends to the level of the lower end of the table of the window or close, then he presses the end of the first rod 2-1 against the corresponding locking surface 10b, then causes the pneumatic actuation of the cylinder rod 3-1 in blocking against the opposite blocking surface 10a, so as to ensure the blocking of the second bar.
  • the weight of the second bar 2b makes it possible to exert a tension on the net and to keep it in the flat state in tension.
  • this second variant device will be more quickly put by an intervention team comprising two operators arranged on each side of the window.
  • the two extensible bars will be posed symmetrically, that is to say with the cylinder rods bearing against surfaces of the opposite side walls of the window panel.
  • the three bars are grouped against each other, parallel with the two nets folded.
  • the operator fixes blocking the first upper bar 2a against the locking surfaces 10a, 10b lateral of the corridor 10-2, then releases the link grouping the three bars, which has the effect of unwinding the two screens and stretching them by the weight of the two bars 2b and 2c.
  • the second bar 2b or central bar at half height and the third lower bar 2c are locked against the same locking surfaces 10a, 10b, vertical delimiting the corridor 10-2.
  • the opening of the bleed valves 3-8 of the extensible bar 2 requires the implementation of the implementation of a specific tool such as a wrench or screw end screw. non-standard shape.

Description

La présente invention concerne un dispositif de protection autonome permettant d'obstruer provisoirement un passage tel qu'un couloir, une porte ou une fenêtre.The present invention relates to an autonomous protection device for temporarily obstructing a passage such as a corridor, a door or a window.

On connaît différents systèmes de grilles anti-effraction, voire visant à empêcher une défenestration, amovibles, pour ouvertures de bâtiments. Mais, ces systèmes requièrent, soit des modalités de fixation mécanique sur l'encadrement des baies en cause relativement longues à réalisées, soit une adaptation de l'encadrement de la baie pour le sus de fermeture concerné. En général, ces grilles sont lourdes et difficilement manipulables et comportent, en outre, des systèmes de verrouillage à serrure relativement complexes, notamment dans FR 2 647 497 , FR 2 661 449 .There are various systems of burglar-resistant grilles, or even to prevent a defenestration, removable, for openings of buildings. However, these systems require either mechanical fixing methods on the frame of the bays in question that are relatively long to be made, or an adaptation of the frame of the bay for the above closure. In general, these grids are heavy and difficult to handle and furthermore comprise relatively complex lock locking systems, particularly in FR 2,647,497 , FR 2 661 449 .

On a également proposé des systèmes de type volet roulant, notamment dans FR2 360 073 , WO 94/20723 et FR 2 814 230 . Mais, ces systèmes requièrent également des modalités de fixation mécanique sur les tableaux des baies à obturer.Roller shutter type systems have also been proposed, particularly in FR2 360 073 , WO 94/20723 and FR 2 814 230 . However, these systems also require mechanical fastening methods on the boards of the bays to be closed.

En fait, la présente invention concerne plus particulièrement un dispositif de protection destiné aux personnels de sécurité, tels que les forces de l'ordre, police, gendarmerie ou Armée, notamment des groupes d'interventions rapides.In fact, the present invention relates more particularly to a protective device for security personnel, such as law enforcement, police, gendarmerie or army, including groups of rapid interventions.

Le but de la présente invention est de fournir un dispositif permettant d'obstruer provisoirement un passage tel qu'une baie ou tel qu'un couloir afin d'empêcher ou retarder le franchissement de ce passage par des personnes consentantes ou non consentantes et/ou d'empêcher la projection d'objets à travers ledit dispositif, notamment de l'extérieur vers l'intérieur ou de l'intérieur vers l'extérieur en cas de pose du dispositif contre une porte ou fenêtre. Plus particulièrement, ce type de dispositif vise à empêcher une défenestration suicidaire lors d'interpellation de forcenés, mais également vise à permettre de canaliser des personnes en obstruant provisoirement certains passages, par exemple des couloirs, lors de manifestations ou mouvement de foule dans des lieux publics ou privés.The purpose of the present invention is to provide a device for temporarily obstructing a passage such as a bay or a corridor to prevent or delay the crossing of this passage by consenting or non-consenting persons and / or to prevent the projection of objects through said device, in particular from the outside to the inside or from the inside to the outside when the device is placed against a door or window. More specifically, this type of device aims to prevent suicidal defenestration during the arrest of madmen, but also aims to channeling people by temporarily blocking certain passages, such as corridors, during demonstrations or crowds in public or private places.

Plus précisément, un but de la présente invention est de fournir un dispositif de protection autonome de ce type qui soit facile et surtout rapide à fixer et retirer par le personnel intervention (ci-après dénommé "opérateur »), ceci afin de réduire au maximum le temps d'exposition du personnel d'intervention aux risques de projections et/ou agression lors de cette mise en place de dispositif.More specifically, an object of the present invention is to provide an autonomous protection device of this type which is easy and especially quick to fix and remove by the intervention personnel (hereinafter referred to as "operator"), this in order to reduce to a minimum the exposure time of the intervention personnel to the risks of projections and / or aggression during this installation of the device.

La demanderesse a posé pour la première fois le problème dans les termes exposés ci-dessus. Et, aucun dispositif de ce type adapté aux usages mentionnés ci-dessus n'est actuellement disponible dans le commerce ou utilisé publiquement par des organisations de sécurité, telles que police ou Armée.The plaintiff posed for the first time the problem in the terms set out above. And, no device of this type adapted to the uses mentioned above is currently commercially available or used publicly by security organizations, such as police or army.

Pour ce faire la présente invention fournit un dispositif de protection autonome permettant d'obstruer provisoirement un passage tel qu'un couloir, une porte ou une fenêtre caractérisé en ce qu'il comprend au moins une barre extensible longitudinalement, de préférence une barre télescopique, actionnable en extension par un vérin, ladite barre étant apte à être bloquée de façon amovible en extension entre deux surfaces de parois délimitant ledit passage dénommées surfaces de blocage, ladite barre extensible supportant un ou de préférence une pluralité d'élément(s) d'obstruction pour former un écran de protection faisant obstruction au niveau dudit passage, de préférence le ou lesdits éléments d'obstruction y étant fixé(s) de manière amovible.To do this, the present invention provides an autonomous protection device for temporarily blocking a passage such as a corridor, a door or a window characterized in that it comprises at least one longitudinally extendable bar, preferably a telescopic bar, actuable extension by a jack, said bar being adapted to be removably locked in extension between two wall surfaces defining said passage referred to as locking surfaces, said extensible bar supporting one or preferably a plurality of element (s) d ' obstruction to form a protective screen obstructing at said passage, preferably the one or more obstruction elements being removably attached thereto.

Le blocage par vérin qui est hydraulique, électrique ou de préférence pneumatique est particulièrement simple et rapide à mettre en oeuvre. D'autre part le dispositif peut être adapté sur les parois existantes sans adaptation ou transformation de celle-ci.Locking jack which is hydraulic, electric or preferably pneumatic is particularly simple and quick to implement. On the other hand the device can be adapted to the existing walls without adaptation or transformation thereof.

On entend ici par « surfaces de blocage », des surfaces pouvant être comprises dans des cloisons ou murs en vis à vis (parallèles) formant un couloir délimitant un dit passage ou des surfaces de montants de cadre ou châssis de porte ou fenêtre ou de préférence dans la partie d'épaisseur du mur ou des surfaces de maçonnerie d'un encadrement de dit châssis de porte ou fenêtre situé à l'extérieure de la baie (dénommé usuellement « tableau »).The term "blocking surfaces" is understood here to mean surfaces which can be included in partitions or walls facing each other (parallel) forming a corridor delimiting a said passage or surfaces of frame uprights or door or window frames or preferably in the thickness portion of the wall or masonry surfaces of a frame of said door frame or window located outside the bay (usually called "table").

On entend ici par « écran faisant obstruction », une surface pleine ou de préférence ajourée, mais dont les ouvertures ne permettent pas le passage d'un individu et/ou réduisant le risque de traversée dudit écran par des projectiles de dimensions données, aptes à être lancés à la main, à travers ledit élément d'obstruction et/ou le cas échéant entre les différents éléments d'obstruction, notamment des projectiles du type de ceux lancés par les manifestants contre les forces de l'ordre.In the present context, the term "obstruction screen" means a solid or preferably perforated surface, but whose openings do not allow the passage of an individual and / or reduce the risk of crossing said screen by projectiles of given dimensions, suitable for be thrown by hand, through said obstruction element and / or where appropriate between the various obstruction elements, including projectiles of the type launched by the demonstrators against the police.

Plus particulièrement, ledit écran est formé par un unique élément d'obstruction en matériau souple pliable de préférence ajouré ou une pluralité d'éléments d'obstruction rigides pleins mais espacés les uns des autres de manière à former un écran ajouré.More particularly, said screen is formed by a single obstruction element made of foldable, preferably perforated, flexible material or a plurality of rigid obstruction elements which are solid but spaced from one another so as to form a perforated screen.

Avantageusement, ledit écran sera constitué par une pluralité d'éléments d'obstruction consistant en des lattes rigides espacées, de préférence disposées parallèlement entre elles et de préférence perpendiculairement à ladite barre. Dans un autre mode de réalisation, ledit écran sera constitué d'un filet ou d'un matériau en feuille plein, souple, à propriété antibalistique du type complexe textile pare-balles.Advantageously, said screen will be constituted by a plurality of obstruction elements consisting of spaced rigid slats, preferably arranged parallel to each other and preferably perpendicular to said bar. In another embodiment, said screen will be made of a net or a solid sheet material, flexible, anti-ballistic property of the bulletproof textile complex type.

Un écran ajouré présente un double avantage. Tout d'abord, son poids est réduit, son encombrement de conditionnement avant usage est réduit, et sa prise au vent est réduite facilitant aussi la pose en extérieure en cas de vent. En second lieu, il permet de ne pas occulter complètement le passage et donc maintenir une possibilité d'inspection visuelle de la situation par l'opérateur de l'autre côté de l'écran.A perforated screen has a double advantage. First of all, its weight is reduced, its size of conditioning before use is reduced, and its wind resistance is reduced making it easy to pose outdoors in windy conditions. Second, it allows not to completely obscure the passage and therefore maintain a possibility of visual inspection of the situation by the operator on the other side of the screen.

On comprend que ladite barre extensible peut-être le positionnée horizontalement ou verticalement dans l'encadrement ou le passage à obturer, et ledit ou lesdits éléments d'obstruction peuvent être disposés transversalement, perpendiculairement à ladite barre.It is understood that said expandable bar may be positioned horizontally or vertically in the frame or the passage to be closed, and said one or more obstruction elements may be arranged transversely, perpendicularly to said bar.

Le dispositif selon l'invention peut être installé en positionnant la ou lesdites barres extensibles entre les deux surfaces de blocage, puis en réalisant le blocage par extension des extrémités longitudinales de la ou des dites barres contre lesdites surfaces de blocage. Le ou les éléments d'obstruction peuvent être préfixés sur ladite ou lesdites barres dans le cas où il s'agit d'élément en matériau souple tel qu'un filet ou d'un matériau textile complexe évoqué ci-dessus qui peuvent être conditionné sous forme repliée. En revanche, si les éléments d'obstruction sont des éléments rigides tels que des lattes, ils seront avantageusement montés sur la barre après blocage de ladite barre en extension contre les surfaces de blocage.The device according to the invention can be installed by positioning the said extensible bars or bars between the two blocking surfaces, then realizing the locking by extension of the longitudinal ends of the said bar or bars against said blocking surfaces. The obstruction element or elements can be prefixed on said bar or bars in the case where it is a flexible material element such as a net or a complex textile material mentioned above which can be conditioned under folded form. On the other hand, if the obstruction elements are rigid elements such as slats, they will advantageously be mounted on the bar after locking of said bar in extension against the locking surfaces.

Dans un premier mode de réalisation, le dispositif selon l'invention comprend une unique dite barre extensible.In a first embodiment, the device according to the invention comprises a single said expandable bar.

On comprend que, dans ce cas, avantageusement ledit élément d'obstruction ou ladite pluralité d'éléments d'obstruction est ou sont rigides ou aptes à être maintenus en forme d'écran par ladite unique barre extensible.It is understood that, in this case, advantageously said obstruction element or said plurality of obstruction elements is or are rigid or able to be kept in the form of a screen by said single expandable bar.

Du fait que les éléments d'obstruction du dispositif sont montés de façon amovible sur la (ou les) dite(s) barre(s) extensible(s) et que celle(s)-ci dans leur position rétractée présente(nt) une longueur et donc un encombrement réduit, le dispositif selon l'invention sous forme de kit ou ensemble d'éléments prêt à monter peut-être conditionné avec un encombrement réduit ce qui contribue également à faciliter son déplacement sur site et son installation par le personnel d'intervention.Since the obstruction elements of the device are removably mounted on the said extensible bar (s) and that (s) in their retracted position present (s) a length and therefore a small footprint, the device according to the invention in the form of a kit or set of elements ready to mount can be packaged with a small footprint which also contributes to facilitate its movement on site and its installation by the staff of 'intervention.

Plus particulièrement, le dispositif comprend une pluralité de dits éléments d'obstruction constitués de lattes rigides de préférence de deux à cinq lattes.More particularly, the device comprises a plurality of said obstruction elements consisting of rigid slats preferably of two to five slats.

De préférence, lesdites lattes rigides sont disposées parallèlement entre elles et de préférence perpendiculairement à ladite barre.Preferably, said rigid slats are arranged parallel to each other and preferably perpendicularly to said bar.

Plus particulièrement, ladite barre extensible est disposée selon un axe médian transversal du ou des dits éléments d'obstructionMore particularly, said expandable bar is disposed along a transverse median axis of said obstruction element (s).

Ce type de dispositif à barre unique requiert une pose sur une façade présentant une partie de paroi formant paroi de butée située au dessus et /ou au dessous de ladite barre si celle-ci est disposée horizontalement, ou latéralement si ladite barre est disposée verticalement, de façon à ce que la barre et les lattes soient empêchées de pivoter du fait que lesdites lattes butent à leur extrémité contre ladite paroi de butée.This type of single bar device requires a laying on a facade having a wall portion forming abutment wall located above and / or below said bar if it is disposed horizontally, or laterally if said bar is arranged vertically, so that the bar and the slats are prevented from pivoting because said slats abut at their end against said abutment wall.

Autrement, en l'absence de paroi de butée des lattes, ce dispositif à barre unique peut être juxtaposé à un deuxième dispositif à barre unique avec des lattes dont les extrémités peuvent se fixer, ou de préférence seulement s'emboiter dans les extrémités des lattes du premier dispositif. Cet emboitement constituant un obstacle à un pivotement de dites lattes et barres des deux dispositifs. Les deux dispositifs sont disposés l'un au dessus de l'autre dans le cas d'obstruction d'un couloir entre deux surfaces de blocage verticales ou l'un à côté de l'autre dans le cas où les deux dites surfaces de blocage sont disposées horizontalement l'une au dessus de l'autre.Otherwise, in the absence of abutment wall slats, this single bar device can be juxtaposed to a second single bar device with slats whose ends can be fixed, or preferably only fit into the ends of the slats of the first device. This nesting constituting an obstacle to a pivoting said slats and bars of the two devices. The two devices are arranged one above the other in the case of obstruction of a corridor between two vertical locking surfaces or one next to the other in the case where the two said locking surfaces are arranged horizontally one above the other.

Pour ce faire, avantageusement, le dispositif comprend une unique dite barre extensible et une pluralité de dits éléments d'obstruction constitués de lattes rigides de préférence de deux à cinq lattes disposées parallèlement entre elles et perpendiculairement à ladite barre, lesdites lattes présentant une extrémité avec une forme femelle et l'extrémité opposée avec une forme complémentaire mâle de manière à ce la forme mâle de l'extrémité des lattes d'un premier dispositif puisse s'emboiter dans le forme femelle d'un deuxième dispositif identique.To do this, advantageously, the device comprises a single said expandable bar and a plurality of said obstruction elements consisting of rigid slats preferably of two to five slats arranged parallel to each other and perpendicular to said bar, said slats having an end with a female shape and the opposite end with a male complementary shape so that the male shape of the end of the slats of a first device can fit into the female form of a second identical device.

Toutefois, bien évidemment, ces lattes rigides peuvent être supportées par une pluralité de barres extensibles, c'est-à-dire au moins deux barres extensibles, disposées parallèlement entre elles. Dans ce cas, le dispositif peut être mis en oeuvre sans risque de pivotement de lattes même en l'absence de surface paroi supérieure ou inférieure située au dessus ou respectivement au dessous du dispositif, notamment le dispositif peut être mis en oeuvre pour obstruer un couloir.However, of course, these rigid slats can be supported by a plurality of extensible bars, that is to say at least two extensible bars, arranged parallel to each other. In this case, the device can be implemented without risk of pivoting slats even in the absence of upper or lower wall surface above or below the device, in particular the device can be implemented to obstruct a corridor .

Dans un autre mode de réalisation, ledit écran de protection est un écran en matériau souple apte à être tendu à l'aide d'un élément de tensionnement, d'une part tendu entre ledit élément de tensionnement et ladite première barre extensible et d'autre part tendu entre les 2 dites surfaces de blocage, ledit écran étant fixé sur un des ses côtés à ladite barre et ledit élément de tensionnement coopérant avec l'extrémité opposée dudit écran.In another embodiment, said protective screen is a flexible material screen capable of being stretched with the aid of a tensioning element, on the one hand stretched between said tensioning element and said first stretchable bar and of on the other hand stretched between the 2 said locking surfaces, said screen being fixed on one of its sides to said bar and said tensioning element cooperating with the opposite end of said screen.

Plus particulièrement, ledit écran en matériau souple est constitué d'un filet.More particularly, said screen made of flexible material consists of a net.

Plus particulièrement encore, ledit élément de tensionnement peut être une corde ou filin apte à être maintenu par un ou plusieurs opérateurs.More particularly, said tensioning element may be a rope or rope capable of being held by one or more operators.

De préférence, ledit élément de tensionnement est constitué par une deuxième barre extensible.Preferably, said tensioning element is constituted by a second expandable bar.

Plus particulièrement donc, ledit dispositif comprend deux dites barres extensibles et un écran en matériau souple apte à être tendu entre les deux dites barres extensibles auxquelles sont fixées respectivement deux côtés opposées dudit écran.More particularly therefore, said device comprises two said extensible bars and a flexible material screen capable of being stretched between the two said extensible bars to which two opposite sides of said screen are respectively fixed.

Toutefois, Il est possible de mettre en oeuvre un dispositif avec une unique barre extensible supportant un côté d'un écran souple, notamment du type filet. Mais, dans ce cas, ce dispositif doit être couplé par juxtaposition avec un deuxième dispositif de façon à pouvoir fixer le côté opposé libre de l'écran souple du premier dispositif avec une unique barre extensible d'un deuxième dispositif.However, it is possible to implement a device with a single expandable bar supporting one side of a flexible screen, including the net type. But, in this case, this device must be coupled by juxtaposition with a second device so as to be able to attaching the free opposite side of the flexible screen of the first device with a single expandable bar of a second device.

De préférence, toutefois, si le passage à obstruer requiert la juxtaposition de plusieurs dispositifs selon l'invention, du type à écran en matériau souple tendu entre deux dites barres extensibles, notamment pour obstruer un couloir sur une hauteur suffisante, on met en oeuvre un dispositif pré-monté avec trois barres extensibles supportant deux dits écrans, du type matériau souple, dont les côtés opposés de chaque écran sont fixés à une dite barre, avec une barre médiane intercalée entre les côtés adjacents de deux écrans superposés sur laquelle dite barre médiane desdits côtés des deux écrans superposés sont fixés.Preferably, however, if the passage to be obstructed requires the juxtaposition of several devices according to the invention, of the screen type of flexible material stretched between two said extensible bars, in particular for obstructing a corridor to a sufficient height, it implements a pre-mounted device with three extensible bars supporting two said screens, of the flexible material type, whose opposite sides of each screen are fixed to a said bar, with a median bar interposed between the adjacent sides of two superposed screens on which said middle bar said sides of the two superposed screens are fixed.

Dans un mode préféré pour sa facilité et rapidité de mise en oeuvre, ladite barre extensible comprend un vérin constitué par un corps de vérin tubulaire et au moins une tige de vérin télescopique extensible dans la direction longitudinale du corps de vérin tubulaire, depuis l'intérieur vers l'extérieur du dit corps de vérin à une extrémité dudit corps de vérin.In a preferred embodiment for its ease and speed of implementation, said expandable bar comprises a jack constituted by a tubular jack body and at least one telescopic jack rod extendable in the longitudinal direction of the tubular jack body, from the inside. outwardly of said cylinder body at one end of said cylinder body.

Le vérin peut-être un vérin hydraulique, électrique, ou de préférence un vérin pneumatique compte tenu des qualités de légèreté, faible encombrement et rapidité d'action d'un actionnement pneumatique.The jack may be a hydraulic cylinder, electric, or preferably a pneumatic cylinder given the qualities of lightness, small footprint and speed of action of a pneumatic actuation.

De préférence encore, ladite barre extensible comprend un vérin pneumatique auto alimenté par une cartouche d'air comprimé, de préférence à au moins 50 bar, apte à permettre l'extension de ladite tige de vérin, de préférence plusieurs fois, plus particulièrement de deux à cinq fois, ladite cartouche étant rechargeable ou pouvant être remplacée.More preferably, said stretchable bar comprises a pneumatic jack self powered by a compressed air cartridge, preferably at least 50 bar, adapted to allow the extension of said cylinder rod, preferably several times, more particularly two five times, said cartridge being rechargeable or replaceable.

On comprend que une fois le dispositif d'obstruction en position, la mise sous pression du vérin pneumatique peut se faire rapidement par commande manuelle telle que simple poussée sur un bouton.It is understood that once the obstruction device in position, the pressurization of the pneumatic cylinder can be done quickly by manual control such as pushing a button.

De préférence encore, ladite barre télescopique est extensible par actionnement mécanique, de préférence manuellement et au moins à une extrémité pneumatiquement à l'aide d'une dite cartouche.More preferably, said telescopic bar is extensible by mechanical actuation, preferably manually and at least at one end pneumatically using a said cartridge.

En pratique, l'opérateur peut réaliser un pré réglage manuel de l'extension de la ou des tiges de vérin mécaniquement en fonction de la distance approximative entre les deux surfaces de blocage en réalisant une extension à une taille inférieure à la distance entre les deux surfaces de blocage, ceci avant de positionner le dispositif entre les deux surfaces de blocage. Puis, l'opérateur peut finaliser l'extension et blocage de la ou des tiges de vérin après mise en place du dispositif entre les deux surfaces de blocages avec une extrémité longitudinale de la barre télescopique calée contre l'une des deux surfaces de blocage et réaliser le blocage sur la deuxième surface de blocage par extension de la tige extensible à l'autre extrémité en mettant en oeuvre le vérin pneumatiquement. On comprend donc que le vérin pneumatique sert uniquement au blocage final correspondant à une extension de longueur relativement réduite sur une longueur inférieure à 10 cm voire inférieure à 5 cm.In practice, the operator can perform a manual pre-adjustment of the extension of the cylinder rod or rods mechanically as a function of the approximate distance between the two locking surfaces by making an extension to a size smaller than the distance between the two. locking surfaces, before positioning the device between the two locking surfaces. Then, the operator can finalize the extension and locking of the cylinder rod or rods after placement of the device between the two blocking surfaces with a longitudinal end of the telescopic bar wedged against one of the two locking surfaces and blocking the second blocking surface by extending the extensible rod at the other end by implementing the cylinder pneumatically. It is therefore understood that the pneumatic cylinder serves only for the final blocking corresponding to an extension of relatively short length over a length of less than 10 cm or even less than 5 cm.

Ce mode de réalisation présente un double avantage. Tout d'abord, le temps de pose du dispositif pendant lequel le dispositif doit nécessairement être placé entre les deux surfaces de blocage est réduit au minimum. La réduction de ce temps de pose est essentielle car cela correspond aussi à un temps au cours duquel l'opérateur est lui aussi positionné entre les deux surfaces de blocage et peut donc être exposé à des jets de projectile et/ou autre mise en danger par des personnes situées de l'autre côté du dispositif et des surfaces de blocage par rapport à l'opérateur et voulant s'opposer à la mise en place du dispositif soit réalisée. Le second avantage est que l'extension réalisée pneumatiquement étant de longueur relativement réduite, elle ne requiert qu'une cartouche d'autant moindre encombrement. En pratique, pour un corps de vérin d'environ 5 à 10 cm de diamètre et de 80 à 110cm, avec une extension pneumatique de 5 à 10cm, une cartouche d'air comprimé à 50 bars représente un encombrement de 5 à 10 cm de longueur et 1 à 4 cm de diamètre.This embodiment has a double advantage. First, the installation time of the device during which the device must necessarily be placed between the two locking surfaces is minimized. The reduction of this exposure time is essential because it also corresponds to a time during which the operator is also positioned between the two blocking surfaces and can therefore be exposed to projectile jets and / or other endangerment by people located on the other side of the device and locking surfaces relative to the operator and wanting to oppose the establishment of the device is performed. The second advantage is that the extension performed pneumatically being of relatively short length, it requires only a cartridge of less space. In practice, for a cylinder body about 5 to 10 cm in diameter and 80 to 110 cm, with a pneumatic extension of 5 to 10 cm, a Compressed air cartridge at 50 bar represents a footprint of 5 to 10 cm in length and 1 to 4 cm in diameter.

Plus particulièrement, ladite barre extensible comprend un vérin constitué par un corps de vérin tubulaire et 2 dites tiges de vérin télescopiques extensibles depuis l'intérieur vers l'extérieur du dit corps de vérin respectivement à chaque extrémité dudit corps de vérin, avec

  • une première tige actionnable en extension et rétractation mécaniquement manuellement, et
  • l'autre tige qui est une tige de vérin actionnable en extension et rétractation, au moins pour partie, pneumatiquement à l'aide d'une dite cartouche.
More particularly, said expandable bar comprises a jack constituted by a tubular jack body and 2 said telescopic jack rods extendable from the inside to the outside of said jack body respectively at each end of said jack body, with
  • a first rod operable in extension and retraction mechanically manually, and
  • the other rod which is a cylinder rod operable in extension and retraction, at least partially, pneumatically using a said cartridge.

Avantageusement, ledit vérin pneumatique comprend un dispositif de déblocage rapide de la dite barre, ce dispositif de déblocage rapide comprenant au moins une vanne de purge dont l'ouverture permet de libérer l'air comprimé injecté dans une première chambre à l'intérieur dudit corps de vérin à partir de la dite cartouche.Advantageously, said pneumatic cylinder comprises a device for quick release of said bar, this quick release device comprising at least one purge valve whose opening allows to release compressed air injected into a first chamber inside said body cylinder from said cartridge.

Plus particulièrement, le dit dispositif de déblocage rapide comprend une deuxième chambre à l'intérieur du corps de vérin et réserve d'air comprimé dans une troisième chambre , la libération de l'air comprimé contenu dans la dite première chambre autorisant la rétractation rapide d'au moins une dite tige de vérin provoquée par ladite réserve d'air comprimé contenu dans ladite troisième chambre et libérée dans ladite deuxième chambre du fait que la pression de l'air comprimé dans la dite troisième chambre est supérieure à la pression atmosphérique et inférieure à la pression de l'air comprimé dans la dite première chambre après injection de l'air comprimé contenu dans la dite cartouche avant ouverture de la dite vanne de purge.More particularly, said rapid release device comprises a second chamber inside the cylinder body and compressed air reserve in a third chamber, the release of the compressed air contained in said first chamber allowing the rapid retraction of at least one said cylinder rod caused by said reserve of compressed air contained in said third chamber and released in said second chamber because the pressure of the compressed air in said third chamber is greater than atmospheric pressure and lower at the pressure of the compressed air in said first chamber after injection of the compressed air contained in said cartridge before opening said purge valve.

Le déblocage de la barre par action pneumatique provocant la rétractation des dites tiges de vérin permet de retirer ledit dispositif d'obstruction de son emplacement.The unblocking of the bar by pneumatic action provoking the retraction of said jack rods makes it possible to remove said obstruction device from its location.

Avantageusement, ledit ou lesdits éléments d'obstruction sont fixés sur le ladite barre extensible de manière amovible et interchangeable.Advantageously, said one or more obstruction elements are fixed on said removable bar removably and interchangeably.

On comprend que plusieurs modèles desdits éléments de protection de tailles différentes peuvent être disponibles et que l'utilisateur a ainsi le choix d'adapter le modèle et/ou la taille du ou desdits éléments de protection à savoir dudit filet, des dites lattes ou dit panneau, en fonction du contexte opérationnel.It will be understood that several models of said protection elements of different sizes may be available and that the user thus has the choice of adapting the model and / or the size of the one or more protection elements, namely said net, said slats or said panel, depending on the operational context.

Avantageusement, lesdits éléments d'obstruction en forme de lattes sont eux même extensibles en longueur dans la direction longitudinale des lattes. Pour ce faire, de préférence, les lattes sont constituées de deux lattes de longueurs différents fixées et coulissant l'une contre l'autre. On comprend que l'on peut ainsi changer la latte de plus grande longueur et adapter sur la latte de plus petite longueur des grandes lattes de tailles différentes de celles qu'elles remplacent.Advantageously, said slat-shaped obstruction elements are themselves extensible in length in the longitudinal direction of the slats. To do this, preferably, the slats consist of two slats of different lengths fixed and sliding against each other. It is understood that one can thus change the batten of greater length and adapt on the batten of smaller length of the large slats of different sizes from those they replace.

L'adhérence de ladite barre extensible à ses extrémités contre lesdites surfaces de blocage est améliorée par des semelles en caoutchouc ou matériau élastomère.The adhesion of said stretchable bar at its ends against said blocking surfaces is improved by rubber soles or elastomeric material.

Les dites lattes ou panneaux rigides massives ou perforées peuvent être réalisées en divers matériaux tels que plastique, carbone, de préférence du type Kevlar, en bois, métal, de préférence aluminium.The said slats or solid panels or perforated massive can be made of various materials such as plastic, carbon, preferably Kevlar type, wood, metal, preferably aluminum.

La présente invention fournit également un ensemble prêt à monter pour installer un dispositif de protection selon l'invention comprenant :

  • une dite barre extensible, et
  • un ou des dits éléments s d'obstruction.
The present invention also provides a ready-to-assemble assembly for installing a protection device according to the invention comprising:
  • a so-called stretchable bar, and
  • one or more of said obstruction elements.

D'autres caractéristiques et avantages de la présente invention ressortiront mieux à la lecture de la description qui va suivre, faite de manière illustrative et non limitative, en référence aux dessins annexés sur lesquels :

  • Les figures 1A, 1B et 1C représentent une première variante d'un dispositif de protection selon l'invention, avec :
    • des éléments d'obstruction sous forme de lattes rigides disposés horizontalement (figure 1A),
    • le dispositif faisant obstruction au niveau d'une fenêtre (figure 1 B), et
    • deux dispositifs juxtaposés l'un au-dessus de l'autre pour obstruer un couloir (figure 1C).
  • Les figures 2A, 2B et 2C représentent une deuxième variante d'un dispositif de protection selon l'invention, avec :
    • l'écran constitué d'un filet (figure 2A),
    • un écran de protection au niveau d'une fenêtre (figure 2B), et
    • un dispositif comprenant une pluralité de barres extensibles et deux filets superposés faisant obstruction au niveau d'un couloir (figure 2C).
  • La figure 3 représente une coupe longitudinale d'une barre extensible d'un dispositif selon l'invention.
Other characteristics and advantages of the present invention will emerge more clearly on reading the following description, given in an illustrative and nonlimiting manner, with reference to the appended drawings in which:
  • The Figures 1A , 1B and 1 C represent a first variant of a protection device according to the invention, with:
    • obstruction elements in the form of rigid slats arranged horizontally ( Figure 1A )
    • the blocking device at a window ( Figure 1 B) , and
    • two devices juxtaposed one above the other to obstruct a corridor ( figure 1C ).
  • The Figures 2A , 2B and 2C represent a second variant of a protection device according to the invention, with:
    • screen made of a net ( Figure 2A )
    • a protection screen at a window ( Figure 2B ), and
    • a device comprising a plurality of extensible bars and two superposed nets obstructing at a corridor ( Figure 2C ).
  • The figure 3 represents a longitudinal section of an expandable bar of a device according to the invention.

Le dispositif de protection selon l'invention représenté sur la figure 1A, comprend une unique barre extensible 2 sur laquelle sont fixées, de façon amovible par des clips (non représentés), trois lattes rigides 4 disposées perpendiculairement à ladite barre extensible 2, sensiblement dans leurs parties médianes. L'espacement 5-1 entre les trois lattes 4 permet d'ajourer l'écran 5a constitué par l'ensemble des trois lattes rigides 4. La distance 5-1 entre deux lattes successives est inférieure ou égale à la largeur d'une latte.The protection device according to the invention represented on the Figure 1A , comprises a single extensible bar 2 on which are fixed, removably by clips (not shown), three rigid slats 4 disposed perpendicular to said expandable bar 2, substantially in their median portions. The spacing 5-1 between the three slats 4 allows to open the screen 5a constituted by all three rigid slats 4. The distance 5-1 between two successive slats is less than or equal to the width of a slat .

Chaque latte 4 est formée de deux éléments de latte complémentaires 4a, 4b, emboîtés l'un dans l'autre et coulissant longitudinalement l'un dans l'autre. Sur la figure 1A, l'élément mâle 4b dépasse de l'élément femelle 4a aux deux extrémités de celui-ci. L'utilisateur peut disposer de plusieurs longueurs d'éléments mâles 4b, de façon à les adapter en fonction des dimensions de l'ouverture du passage à obstruer avec le dispositif selon l'invention.Each slat 4 is formed of two complementary slat elements 4a, 4b, nested one inside the other and sliding longitudinally one in the other. On the Figure 1A , the male element 4b protrudes from the female element 4a at both ends thereof. The user can have several lengths of male elements 4b, so as to adapt them according to the dimensions of the opening of the passage to be obstructed with the device according to the invention.

Sur les figures 1B et 1C, l'élément mâle 4b dépasse uniquement d'un côté, de sorte que la latte comprend deux extrémités distinctes, une extrémité supérieure mâle 4-1 et une extrémité inférieure femelle 4-2. Compte-tenu de la hauteur de la fenêtre sur le tableau de laquelle est installé le dispositif sur la figure 1B, un élément mâle 4b dépassant uniquement d'un côté est suffisant. D'autre part, ce mode de réalisation permet de coupler, de façon juxtaposée, deux dispositifs l'un au-dessus de l'autre pour obstruer un couloir 10-2, comme représenté sur la figure 1C, en emboîtant les extrémités supérieures mâles 4-1 des lattes du dispositif inférieur 1b dans les extrémités inférieures femelles 4-2 d'un même dispositif supérieur 1a selon l'invention disposé au-dessus du dispositif 1b.On the Figures 1B and 1 C , the male element 4b protrudes only on one side, so that the batten comprises two distinct ends, a male upper end 4-1 and a lower female end 4-2. Given the height of the window on the board of which is installed the device on the Figure 1B a male element 4b protruding only on one side is sufficient. On the other hand, this embodiment makes it possible to couple, in a juxtaposed manner, two devices one above the other to obstruct a corridor 10-2, as shown in FIG. figure 1C , by fitting the upper male ends 4-1 of the slats of the lower device 1b in the lower female ends 4-2 of the same upper device 1a according to the invention disposed above the device 1b.

La barre extensible 2 du dispositif est positionnée, sensiblement à mi-hauteur du tableau de la fenêtre ou à proximité, dans l'épaisseur l'extérieure du mur extérieur à la fenêtre 10-1.The expandable bar 2 of the device is positioned, substantially halfway up the window table or nearby, in the outer thickness of the outer wall to the window 10-1.

L'ajustement de la longueur des lattes 4 est nécessaire de façon à ce que, comme représenté sur la figure 1B, les extrémités 4-1 et 4-2 de chaque latte 4 viennent buter sur une paroi supérieure de butée 10c et, respectivement, sur une paroi inférieure de butée 10d, correspondant aux parties de façade situées au-dessus et au-dessous du tableau de la fenêtre 10-1. Ces extensions de lattes au-dessus et en-dessous du tableau de la fenêtre permettent d'empêcher le pivotement de l'ensemble du dispositif, suite à une manipulation par une personne cherchant à s'opposer à cette obstruction et tentant de faire pivoter les lattes en rotation autour la barre extensible 2 en dépit des blocages des butées d'extrémités 5 contre les surfaces latérales de blocage 10a, 10b du tableau de la fenêtre.The adjustment of the length of the slats 4 is necessary so that, as shown on the Figure 1B , the ends 4-1 and 4-2 of each batten 4 abut on an upper abutment wall 10c and, respectively, on a bottom abutment wall 10d, corresponding to the front portions located above and below the table of window 10-1. These extensions slats above and below the table of the window can prevent the pivoting of the entire device, following manipulation by a person seeking to oppose this obstruction and trying to rotate the laths in rotation around the extensible bar 2 despite the blockages of end stops 5 against the lateral blocking surfaces 10a, 10b of the window panel.

La barre extensible 2 telle que représentée sur la figure 3 comprend un corps longitudinal tubulaire creux 3-1, renfermant deux tiges extensibles 2-1 et 3-2, respectivement à chaque extrémité.The extensible bar 2 as shown on the figure 3 comprises a hollow tubular longitudinal body 3-1, enclosing two extensible rods 2-1 and 3-2, respectively at each end.

La première tige 2-1 à l'extrémité gauche est extensible et rétractable grâce à un dispositif mécanique constitué de la combinaison d'un élément d'actionnement manuel 2-7 d'un ergot 2-8 coopérant avec une pluralité de crans ou orifices de blocage 2-9, espacés sur la longueur de la tige de façon à pouvoir régler la longueur d'extension de la tige 2-1 et la bloquer à une longueur d'extension donnée. En tirant sur l'élément 2-7 de commande manuelle de l'ergot 2-8, on dégage l'ergot 2-8 du cran de blocage 2-9 et on libère la première tige 2-1, laquelle peut être manipulée manuellement et étendue ou rétractée par rapport au corps tubulaire 3-1 en déplaçant l'ergot 2-8 dans un autre cran 2-9.The first rod 2-1 at the left end is expandable and retractable by a mechanical device consisting of the combination of a manual actuating element 2-7 of a lug 2-8 cooperating with a plurality of notches or orifices 2-9, spaced along the length of the rod so as to adjust the extension length of the rod 2-1 and lock it to a given extension length. By pulling on the 2-7 element of the manual control of the lug 2-8, the lug 2-8 of the locking lug 2-9 is disengaged and the first rod 2-1 is released, which can be manipulated manually. and extended or retracted relative to the tubular body 3-1 by moving the lug 2-8 into another notch 2-9.

Ce premier réglage mécanique de la première tige 2-1 est manuel et permet de prérégler la longueur de la barre extensible avant l'intervention, en fonction de la dimension du tableau de la fenêtre 10-1 ou du couloir 10-2 à obstruer. Ainsi, la deuxième tige 3-2 à l'autre extrémité de ladite barre, qui constitue une tige de vérin pneumatique actionnée par une alimentation embarquée consistant en une cartouche d'air comprimé 3-3 fixée sur ladite barre, pourra compléter l'extension de la barre et assurer le blocage de celle-ci contre les deux surfaces de blocage latérales 10a et 10b du tableau, sous l'effet de la pression pneumatique.This first mechanical adjustment of the first rod 2-1 is manual and allows to preset the length of the expandable bar before the intervention, depending on the size of the table of the window 10-1 or the corridor 10-2 to be obstructed. Thus, the second rod 3-2 at the other end of said bar, which constitutes a pneumatic cylinder rod actuated by an onboard power supply consisting of a compressed air cartridge 3-3 fixed on said bar, may complete the extension. of the bar and ensure the blocking thereof against the two lateral blocking surfaces 10a and 10b of the table, under the effect of pneumatic pressure.

Le corps tubulaire 3-1 comporte à son extrémité une fermeture 3-9, laquelle comporte un orifice à travers lequel la deuxième tige de vérin 3-2 peut coulisser de manière étanche grâce à des joints toriques 3-11 lors de l'extension et rétractation de ladite deuxième tige de vérin. La cavité cylindrique interne du corps tubulaire 3-1 comporte un premier bloc fixe 3-4 en son sein. La dite deuxième tige de vérin 3-2 comporte à son extrémité interne un deuxième bloc 3-5 solidaire de ladite deuxième tige de vérin et coulissant avec celle-ci. Le premier bloc 3-4 et le deuxième bloc 3-5 délimitent avec la paroi cylindrique du corps tubulaire de vérin 3-1 une première chambre 2-3 de volume variable selon la position du deuxième bloc 3-5. Le deuxième bloc 3-5 solidaire de l'extrémité interne de la deuxième tige de vérin 3-2, délimite avec le bloc de fermeture fixe 3-9 une deuxième chambre 2-4 de volume variant inversement à celui de la première chambre 2-3 lorsque le deuxième bloc 3-5 coulisse à l'intérieur du corps de vérin 3-1. Le deuxième bloc 3-5 vient buter contre le bloc de fermeture 3-9 à l'extrémité du corps de vérin 3-1, lorsque la deuxième tige 3-2 est en extension maximale, le volume de la première chambre 2-3 étant maximal tandis que celui de la deuxième chambre 2-4 est nul. Et, le deuxième bloc 3-5 vient buter contre le premier bloc 3-4 lorsque la deuxième tige de vérin 3 est en rétractation maximale, le volume de la deuxième chambre 2-4 étant maximal tandis que celui de la première chambre 2-3 est nul.The tubular body 3-1 has at its end a closure 3-9, which has an orifice through which the second cylinder rod 3-2 can slide sealingly through O-rings 3-11 during the extension and retracting said second cylinder rod. The internal cylindrical cavity of the tubular body 3-1 comprises a first fixed block 3-4 within it. Said second cylinder rod 3-2 has at its inner end a second block 3-5 integral with said second cylinder rod and sliding therewith. The first block 3-4 and the second block 3-5 delimit with the cylindrical wall of the tubular body of cylinder 3-1 a first chamber 2-3 of variable volume according to the position of the second block 3-5. The second block 3-5 secured to the inner end of the second cylinder rod 3-2 defines, with the fixed closure block 3-9, a second chamber 2-4 of volume that varies inversely with that of the first chamber 2- 3 when the second block 3-5 slides inside the cylinder body 3-1. The second block 3-5 abuts against the closure block 3-9 at the end of the cylinder body 3-1, when the second rod 3-2 is in maximum extension, the volume of the first chamber 2-3 being maximum while that of the second chamber 2-4 is zero. And, the second block 3-5 abuts against the first block 3-4 when the second cylinder rod 3 is in maximum retraction, the volume of the second chamber 2-4 being maximum while that of the first chamber 2-3 is zero.

Ledit premier bloc 3-4 délimite également une quatrième chambre 2-2 entre l'extrémité 2-1a de la tige 2-1 et ledit premier bloc 3-4 ce qui permet d'effectuer le premier réglage manuel mécanique de l'extension de la première tige 2-1.Said first block 3-4 also delimits a fourth chamber 2-2 between the end 2-1a of the rod 2-1 and said first block 3-4, which makes it possible to perform the first manual mechanical adjustment of the extension of the first rod 2-1.

D'autre part, la deuxième tige 3-2 renferme une troisième chambre ou réserve interne 3-6 qui communique avec la deuxième chambre 2-4 via un orifice 3-7 toujours ouvert. Et, ladite deuxième chambre 2-4 présente un volume maximal Vc et ladite réserve interne présente un volume Vb et est remplie de gaz comprimé à une pression Pb tels que :

  • VbxPb est inférieur à PaxVa, Va étant le volume maximal de la première chambre 2-3 lorsque la deuxième chambre 2-4 est de volume nul, et Pa étant la pression dans la première chambre 2-3 de volume maximal Va lorsque l'air comprimé libéré par la dite cartouche 3-3 y a été injecté, et
  • (Vb+Vc)xPc = VbxPb et est supérieur à la pression atmosphérique, Pc étant le volume dans l'ensemble des deuxième chambre 2-4 et réserve interne 3-6 lorsque la deuxième chambre 2-4 est de volume maximal Vc.
On the other hand, the second rod 3-2 contains a third chamber or internal reserve 3-6 which communicates with the second chamber 2-4 via an orifice 3-7 always open. And, said second chamber 2-4 has a maximum volume V c and said internal reserve has a volume V b and is filled with compressed gas at a pressure P b such that:
  • V b x P b is less than P a x V a , where V a is the maximum volume of the first chamber 2-3 when the second chamber 2-4 is of zero volume, and P a is the pressure in the first chamber 2-3 of maximum volume V a when the compressed air released by said cartridge 3-3 has been injected therein, and
  • (V b + V c ) xP c = V b xP b and is greater than the atmospheric pressure, P c being the volume in the assembly of the second chamber 2-4 and internal reserve 3-6 when the second chamber 2-4 is of maximum volume Vc.

En pratique Va , Vc et Vb sont tels que Pb est de 5 à 10 bar inférieure à la pression Pa de l'air comprimé contenu dans la cartouche 3-3 injecté dans la première chambre 2-3, de l'ordre de 50 à 150 barIn practice, V a , V c and V b are such that P b is 5 to 10 bar less than the pressure P a of the compressed air contained in the cartridge 3-3 injected into the first chamber 2-3, of the order from 50 to 150 bar

Ainsi, pour actionner la deuxième tige de vérin 3-2 en extension, on actionne la cartouche 3-3 de manière à injecter de l'air comprimé dans ladite première chambre interne 2-3 via un orifice 3-4a. L'augmentation de la pression pneumatique dans ladite première chambre interne 2-3 provoque le coulissement du deuxième bloc 3-5 et donc de la tige de vérin 3-2 en extension maximale.Thus, to actuate the second cylinder rod 3-2 in extension, the cartridge 3-3 is actuated so as to inject compressed air into said first internal chamber 2-3 via an orifice 3-4a. The increase of the pneumatic pressure in said first internal chamber 2-3 causes the sliding of the second block 3-5 and thus of the cylinder rod 3-2 in maximum extension.

Toutefois, nous souhaitons insister en outre sur le fait que la mise en oeuvre de ce vérin permet d'obtenir une mise sous pression des extrémités des barres contre les surfaces de parois (dites « surfaces de blocage ») délimitant le passage à obstruer, avec une force d'environ 30kN supérieure à celles engendrées par les mécanismes à ressort actionnables manuellement décrits dans les deux documents cités.However, we wish to insist further that the implementation of this jack makes it possible to obtain a pressurization of the ends of the bars against the wall surfaces (called "blocking surfaces") delimiting the passage to be obstructed, with a force of about 30kN greater than those generated by manually operable spring mechanisms described in the two documents cited.

Le blocage par vérin n'est donc pas seulement plus simple, mais il permet une utilisation comme dispositif de sécurité antieffraction, voire visant à empêcher une défenestration, ce qui le distingue des utilisations envisagées dans les deux documents cités ci-dessus.Locking by jack is not only simpler, but it allows use as an anti-burglary security device, or even to prevent a defenestration, which distinguishes it from the uses envisaged in the two documents mentioned above.

Le déblocage rapide de la barre extensible 2, pour le retrait du dispositif après usage, se fait également de manière pneumatique de la façon suivante. On ouvre une vanne de purge 3-8 de la première chambre 2-3, de manière à diminuer la pression dans la première chambre 2-3, ce qui provoque le déplacement du deuxième bloc 3-5 en coulissement à l'intérieur du corps tubulaire 3-1 et, donc, le déplacement de la tige de vérin 3-2 jusqu'à buter contre le premier bloc 3-4 à l'intérieur du corps tubulaire de vérin 3-1. Cette rétractation de la tige de vérin 3-2 vers l'intérieur du corps de vérin 3-1 se fait de par l'air comprimé contenu dans la réserve 3-6 interne de la tige de vérin 3-2 qui via les orifice 3-7 s'introduit dans la deuxième chambre 2-4, disposée entre le deuxième bloc 3-5 et ladite fermeture d'extrémité 3-9, à l'extrémité du corps de vérin 3-1. L'air comprimé introduit dans la deuxième chambre 2-4 expulse le deuxième bloc 3-5 vers l'intérieur du corps de vérin 3-1 et entraîne ainsi la tige de vérin 3-2, qui lui est solidaire, vers l'intérieur du corps de vérin 3-1, dans la mesure où le bloc de fermeture terminal 3-9, à travers lequel coulisse ta tige de vérin 3-2, est, lui, monté fixe. Le deuxième bloc 3-5 coulisse de manière étanche de par ses joints toriques 3-10 à l'intérieur du corps de vérin tubulaire à paroi cylindrique 3-1.The quick release of the expandable bar 2, for removal of the device after use, is also pneumatically as follows. A bleed valve 3-8 of the first chamber 2-3 is opened so as to reduce the pressure in the first chamber 2-3, causing the second block 3-5 to move slidably within the body. tubular 3-1 and, therefore, the displacement of the cylinder rod 3-2 to abut against the first block 3-4 inside the tubular cylinder body 3-1. This retraction of the cylinder rod 3-2 towards the inside of the cylinder body 3-1 is made by the compressed air contained in the internal reserve 3-6 of the cylinder rod 3-2 which via the openings 3-7 is introduced into the second chamber 2-4, disposed between the second block 3-5 and said end closure 3-9, at the end of the cylinder body 3-1. The compressed air introduced into the second chamber 2-4 expels the second block 3-5 inwardly of the cylinder body 3-1 and thus causes the cylinder rod 3-2, which is secured thereto, to the inside. of the cylinder body 3-1, since the terminal closing block 3-9, through which slides the cylinder rod 3-2, is fixedly mounted. The second block 3-5 slides sealingly through its O-rings 3-10 within the cylinder-wall cylinder body 3-1.

Ce système de blocage et déblocage pneumatique autonome est, à la fois, plus léger, moins encombrant et plus rapide à mettre en oeuvre que des systèmes mécanique, notamment à ressort, sans compter le coût relativement faible.This self-locking and pneumatic locking system is both lighter, less cumbersome and faster to implement than mechanical systems, especially spring-loaded systems, not to mention the relatively low cost.

La cartouche 3-3 est dimensionnée de manière à permettre de deux à cinq extensions de la tige de vérin 3-2. La course d'extension de la tige de vérin 3-2 est prédéterminée par la distance entre le premier bloc 3-4 et le bloc de fermeture 3-9 à l'extrémité du corps de vérin 3-1. En général, cette distance est prévue sur une longueur d'une fourchette de 5 à 10 cm.Cartridge 3-3 is sized to allow two to five extensions of the cylinder rod 3-2. The extension stroke of the cylinder rod 3-2 is predetermined by the distance between the first block 3-4 and the closure block 3-9 at the end of the cylinder body 3-1. In general, this distance is provided over a length of a range of 5 to 10 cm.

Le vérin 3 est constitué de l'ensemble des éléments 3-1 à 3-11 mentionnés ci-dessus.The cylinder 3 consists of all the elements 3-1 to 3-11 mentioned above.

L'ensemble des extensions de la première tige 2-1 et de la deuxième tige de vérin 3-2 permet, dans le modèle représenté sur la figure 3, d'augmenter la longueur de la barre extensible 2 d'environ 50% lorsque l'ergot 2-8 coopère avec le premier cran 2-9 (le cran 2-9 le plus à gauche sur la figure 3). Toutefois, dans une utilisation optimale, la première tige 2-1 sera sortie, par rapport à l'extrémité du corps tubulaire 3-1, d'une longueur identique à la longueur d'extension maximale de la tige de vérin 3-2 à l'extrémité opposée.The set of extensions of the first rod 2-1 and the second rod 3-2 cylinder allows, in the model shown on the figure 3 , to increase the length of the expandable bar 2 by about 50% when the lug 2-8 cooperates with the first notch 2-9 (the notch 2-9 the leftmost on the figure 3 ). However, in optimal use, the first rod 2-1 will be released, relative to the end of the body tubular 3-1, of a length identical to the maximum extension length of the cylinder rod 3-2 at the opposite end.

Aux extrémités des tiges 2-1 et 3-2, sont disposés des blocs élastomères 2-5, comportant des éléments d'embossage 2-6 sur leurs faces externes, de façon à favoriser l'adhérence sur les surfaces de blocage 10a, 10b.At the ends of the rods 2-1 and 3-2 are arranged elastomer blocks 2-5, with embossing elements 2-6 on their outer faces, so as to promote adhesion to the locking surfaces 10a, 10b. .

Pour la mise en place d'un dispositif selon la variante de réalisation des figures 1A à 1C, l'opérateur procède de la manière suivante, à partir d'un kit contenant la barre extensible 2 et les trois lattes 4.For the implementation of a device according to the variant embodiment of Figures 1A to 1C , the operator proceeds as follows, from a kit containing the expandable bar 2 and three slats 4.

Pour une pose sur un tableau de fenêtre 10-1 selon la figure 1B, l'opérateur descend en rappel depuis le toit de l'immeuble et arrive latéralement à la fenêtre, au-dessus de celle-ci, en général la tête en bas. Il positionne l'extrémité de la première tige 2-1, préalablement réglée en extension en fonction de la largeur du tableau, en appui contre la surface 10b latérale du tableau de la fenêtre 10-1. Ensuite il réalise le blocage de la barre 2 par extension de la tige de vérin 3-2 contre la surface de blocage opposée 10a du tableau de la fenêtre, en libérant l'air comprimé contenu dans la cartouche 3-3 au sein de ladite première chambre 2-3.For a pose on a 10-1 window board according to the Figure 1B , the operator descends from the roof of the building and arrives laterally at the window, above it, usually upside down. It positions the end of the first rod 2-1, previously set extension according to the width of the table, bearing against the surface 10b side of the table of the window 10-1. Then it realizes the locking of the bar 2 by extension of the cylinder rod 3-2 against the opposite blocking surface 10a of the window panel, releasing the compressed air contained in the cartridge 3-3 within said first room 2-3.

Dans une variante de réalisation préférée, le dispositif est pré-monté avec les lattes 4 fixées sur la barre extensible 2, de manière à ce que le temps d'exposition de l'opérateur en face de l'ouverture de la baie soit réduit au maximum, notamment dans le cas où il pourrait être exposé à des agressions de personnes hostiles de l'autre côté de la fenêtre à l'intérieur du bâtiment.In a preferred embodiment, the device is pre-mounted with the slats 4 fixed on the expandable bar 2, so that the exposure time of the operator opposite the opening of the bay is reduced to maximum, especially in the case where it could be exposed to hostile aggressions on the other side of the window inside the building.

Les éléments mâles de lattes 4b ayant été sortis en coulissement, préalablement à l'intervention, de manière à ce que la longueur totale des lattes permette une butée de leurs extrémités supérieures 4-1 et inférieures 4-2 contre les parois supérieures 10c et inférieures 10d, au-dessus et au-dessous du tableau de la fenêtre.The male elements slats 4b having been slid out before the intervention, so that the total length of the slats allows a stop of their upper ends 4-1 and 4-2 lower against the upper walls 10c and lower 10d, above and below the window table.

Une fois la barre extensible 2 en position de blocage, on peut prévoir de fixer les lattes 4 au niveau d'un système de clips (non représenté) sur la barre 2.Once the expandable bar 2 in the locking position, it can be provided to fix the slats 4 at a clip system (not shown) on the bar 2.

Dans la première variante de réalisation, la barre extensible 2 est, de préférence, réalisée en aluminium et les lattes 4 en matériau à base de carbone du type Kevlar, de façon à allier légèreté et résistance mécanique.In the first embodiment, the extensible bar 2 is preferably made of aluminum and the slats 4 of carbon-based material Kevlar type, so as to combine lightness and strength.

Dans la deuxième variante de réalisation des figures 2A à 2C, dans laquelle l'écran est réalisé par un filet 5a, le filet est réalisé en polymère de polypropylène haute résistance avec des mailles de 25 à 40 mm, par exemple. Ce mode de réalisation est avantageux car moins encombrant au transport dans la mesure où le filet peut être replié sur lui-même. En revanche, il requiert la mise en oeuvre d'un élément de tensionnement 6, en supplément à la barre extensible 2a de support du filet. En pratique, cet élément de tensionnement est avantageusement une deuxième barre extensible 2b. Dans ce mode de réalisation, pour réduire le temps d'exposition de l'opérateur dans l'encadrement du tableau, on prévoit des poignées longitudinales 7 le long des barres 2, et dégagées de celles-ci, de façon à ce qu'il soit possible de positionner la barre entre les deux surfaces de blocage 10a et 10b et contre une première surface de blocage d'un côté, sans que l'opérateur soit visible depuis l'intérieur de la fenêtre. En général, l'opérateur descend en rappel depuis le toit de l'immeuble et pose, tout d'abord, une première barre extensible à proximité de l'extrémité supérieure du tableau. Le filet est déjà préfixé par des mousquetons 8-1 sur la première barre 2a, le long d'un de ses côtés, et également préfixé le long du côté opposé à la deuxième barre 2b. Après blocage de la première barre 2a, à laquelle sont maintenus, fixés provisoirement, la deuxième barre et le filet, on libère la deuxième barre et le filet se déroule. Puis, l'opérateur descend toujours en rappel jusqu'au niveau de l'extrémité inférieure du tableau de la fenêtre ou à proximité, puis il appuie l'extrémité de la première tige 2-1 contre la surface de blocage correspondante 10b, puis provoque l'actionnement pneumatique de la tige de vérin 3-1 en blocage contre la surface de blocage opposée 10a, de manière à assurer le blocage de la deuxième barre. Le poids de la deuxième barre 2b permet d'exercer une tension sur le filet et de la maintenir à l'état sous forme plane tendue.In the second embodiment variant of FIGS. 2A to 2C in which the screen is made by a net 5a, the net is made of high-strength polypropylene polymer with mesh sizes of 25 to 40 mm, for example. This embodiment is advantageous because less cumbersome transport to the extent that the net can be folded on itself. On the other hand, it requires the implementation of a tensioning element 6, in addition to the extensible bar 2a for supporting the net. In practice, this tensioning element is advantageously a second extendable bar 2b. In this embodiment, to reduce the exposure time of the operator in the frame of the table, longitudinal handles 7 are provided along the bars 2, and cleared from them, so that it is possible to position the bar between the two locking surfaces 10a and 10b and against a first blocking surface on one side, without the operator being visible from inside the window. In general, the operator descends from the roof of the building and places, first of all, a first expandable bar near the top end of the board. The net is already prefixed by carabiners 8-1 on the first bar 2a, along one of its sides, and also prefixed along the opposite side to the second bar 2b. After blocking the first bar 2a, which are held temporarily fixed, the second bar and the net, it releases the second bar and the net is unwound. Then, the operator always descends to the level of the lower end of the table of the window or close, then he presses the end of the first rod 2-1 against the corresponding locking surface 10b, then causes the pneumatic actuation of the cylinder rod 3-1 in blocking against the opposite blocking surface 10a, so as to ensure the blocking of the second bar. The weight of the second bar 2b makes it possible to exert a tension on the net and to keep it in the flat state in tension.

Avantageusement, cette deuxième variante de dispositif sera plus rapidement posée par une équipe d'intervention comprenant deux opérateurs disposés de chaque côté de la fenêtre. Les deux barres extensibles seront posées symétriquement, c'est-à-dire avec les tiges de vérin en appui contre des surfaces des parois latérales opposées du tableau de la fenêtre.Advantageously, this second variant device will be more quickly put by an intervention team comprising two operators arranged on each side of the window. The two extensible bars will be posed symmetrically, that is to say with the cylinder rods bearing against surfaces of the opposite side walls of the window panel.

Sur la figure 2C, pour obstruer un couloir sur une hauteur suffisante avec le même kit de barres extensibles et filet, on met en oeuvre trois barres extensibles 2a, 2b, 2c, sur lesquelles sont fixés 8-1 deux filets qui, une fois tendus, forment deux écrans 5b-1 et 5b-2. Sur la barre 2b qui correspond à la barre positionnée centralement, c'est-à-dire sensiblement à mi-hauteur du dispositif, on fixe, par des mousquetons 8-1, des premiers côtés 5-2 et 5-3 des deux filets 5b-1 et, respectivement, 5b-2. Les autres côtés, qui deviendront le côté supérieur 5-1 du filet supérieur 5b-1 et le côté inférieur 5-4 du filet inférieur 5b-2, sont fixés chacun à une barre 2a et, respectivement, 2c. Initialement, les trois barres sont regroupées l'une contre l'autre, parallèlement, avec les deux filets repliés. L'opérateur fixe en blocage la première barre supérieure 2a contre les surfaces de blocage 10a, 10b latérales du couloir 10-2, puis libère le lien regroupant les trois barres, ce qui a pour effet de dérouler les deux écrans et les tendre de par le poids des deux barres 2b et 2c. Ensuite, la deuxième barre 2b ou barre centrale à mi-hauteur et la troisième barre inférieure 2c sont fixées en blocage contre les mêmes surfaces de blocage 10a, 10b, verticales délimitant le couloir 10-2.On the Figure 2C in order to obstruct a passageway of sufficient height with the same set of extendable bars and net, three extensible bars 2a, 2b, 2c are used, on which are fixed 8-1 two nets which, when tensioned, form two screens 5b-1 and 5b-2. On the bar 2b which corresponds to the bar positioned centrally, that is to say substantially halfway up the device, is fixed by carabiners 8-1, first sides 5-2 and 5-3 of the two nets 5b-1 and, respectively, 5b-2. The other sides, which will become the upper side 5-1 of the upper net 5b-1 and the lower side 5-4 of the lower net 5b-2, are each attached to a bar 2a and respectively 2c. Initially, the three bars are grouped against each other, parallel with the two nets folded. The operator fixes blocking the first upper bar 2a against the locking surfaces 10a, 10b lateral of the corridor 10-2, then releases the link grouping the three bars, which has the effect of unwinding the two screens and stretching them by the weight of the two bars 2b and 2c. Then, the second bar 2b or central bar at half height and the third lower bar 2c are locked against the same locking surfaces 10a, 10b, vertical delimiting the corridor 10-2.

Du fait que les filets sont tendus, les mousquetons 8-1, même en cas d'ouverture intempestive, ne peuvent pas être désolidarisés du filet sans débloquer les barres extensibles 2.Because the threads are tight, the carabiners 8-1, even in case of unintentional opening, can not be detached from the net without unlocking the extensible bars 2.

A cet égard, on notera que, par sécurité, l'ouverture des vannes de purge 3-8 de la barre extensible 2 requiert la mise en oeuvre la mise en oeuvre d'un outil spécifique tel qu'une clé ou tourne vis à extrémité de forme non standard.In this respect, it will be noted that, for reasons of safety, the opening of the bleed valves 3-8 of the extensible bar 2 requires the implementation of the implementation of a specific tool such as a wrench or screw end screw. non-standard shape.

Claims (15)

  1. A self-contained protection device (1, 1a-1b) for temporarily blocking a passage (10) such as a corridor, a door, or a window, characterized in that it comprises at least one longitudinally-extendable bar (2, 2a-2b), preferably a telescopic bar, adapted to be actuated in extension by an hydraulic, electric or pneumatic actuator (3), said bar being adapted to be removably locked when extended between two wall surfaces (10a, 10b) defining said passage referred to as locking surfaces, said extendable bar supporting a locking member or preferably a plurality of locking members (4) to form a protection screen (5, 5a, 5b) blocking said passage, in which said blocking member(s) is or are preferably removably fixed.
  2. A device according to claim 1, characterized in that said screen is formed by a single blocking member of flexible pliable material that is preferably perforated or a plurality of rigid solid blocking members spaced from each other to form a perforated screen.
  3. A device according to claim 1 or claim 2, characterized in that it includes a single extendable bar.
  4. A device according to claim 2 or claim 3, characterized in that it includes a plurality of said blocking members constituted by rigid slats, preferably from two to five slats (4a-4b).
  5. A device according to claims 3 and 4, characterized in that it includes a single extendable bar and a plurality of said blocking members constituted by rigid slats, preferably two to five slats (4, 4a-4b), disposed parallel to each other and perpendicular to said bar, said slats having one end (4-2) with a female shape and the opposite end (4-1) with a complementary male shape so that the male shape at the end of the slats of a first device may be nested in the female shape of an identical second device.
  6. A device according to claim 1 or claim 2, characterized in that said protection screen (5) is a flexible material screen adapted to be tensioned by means of a tensioning member (6) tensioned between said tensioning member and said first extendable bar (2, 2a), said screen being fixed on one side to said bar and said tensioning member (6) cooperating with the opposite side of said screen.
  7. A device according to claim 6, characterized in that said flexible material screen is constituted by a net (5b, 5b-1, 5b-2).
  8. A device according to claim 6 or claim 7, characterized in that said device includes at least two extendable bars and at least one flexible material screen adapted to be tensioned between said two extendable bars (2a, 2b) to which two opposite sides of said screen are respectively fixed.
  9. A device according to any one of claims 1 to 8, characterized in that said extendable bar includes an actuator constituted by a tubular actuator body (3-1) and at least one telescopic actuator rod (3-2) extendable in the longitudinal direction of the tubular actuator body from the interior toward the exterior of said actuator body at one end of said actuator body.
  10. A device according to claim 9, characterized in that said extendable bar includes a pneumatic actuator powered by a cartridge (3-3) of compressed air, preferably at a pressure of at least 50 bar, adapted to enable extension of said actuator rod, preferably several times, more particularly two to five times, said cartridge being rechargeable or replaceable.
  11. A device according to claim 10, characterized in that said telescopic bar is extendable by mechanical actuation (2-1), preferably manually, and pneumatically at one end at least by means of one of said cartridges.
  12. A device according to claim 11, characterized in that said extendable bar includes an actuator constituted by a tubular actuator body (3-1) and two telescopic rods (3-2, 2-1) extendable from the interior toward the exterior of said actuator body at respective ends of said actuator body, with:
    • a first rod (2-1) being adapted to be actuated mechanically and manually in extension and retraction; and
    • the other rod being an actuator rod (3-3) adapted to be pneumatically actuated in extension, at least partly, by means of one of said cartridges.
  13. A device according to any one of claims 10 to 12, characterized in that said pneumatic actuator includes a device for rapid unlocking of said bar, this rapid unlocking device including at least one purge valve (3-8) that, when opened, releases compressed air that is air injected into a first chamber (2-3) in the interior of said actuator body from said cartridge (3-3).
  14. A device according to claim 13, characterized in that said rapid unlocking device includes a second chamber (2-4) in the interior of the actuator body and reserved for compressed air in a third chamber (3-6), releasing of the compressed air contained in said first chamber allowing rapid retraction of at least one of said actuator rods caused by said reserve of compressed air contained in said third chamber (3-6) and released in said second chamber (2-4) because the pressure of the compressed air in said third chamber is higher than atmospheric pressure and lower than the pressure of the compressed air in said first chamber after injection of compressed air contained in said cartridge before opening said purge valve.
  15. A kit of elements ready to be assembled to install a device according to any one of claims 1 to 14, characterized in that it comprises:
    • a said extendable bar; and
    • said blocking members.
EP10723225.8A 2009-04-30 2010-04-08 Device for blocking a passage Active EP2425082B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0952873A FR2945068B1 (en) 2009-04-30 2009-04-30 DEVICE FOR CLOSING A PASSAGE
PCT/FR2010/050675 WO2010125270A2 (en) 2009-04-30 2010-04-08 Device for blocking a passage

Publications (2)

Publication Number Publication Date
EP2425082A2 EP2425082A2 (en) 2012-03-07
EP2425082B1 true EP2425082B1 (en) 2016-02-17

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EP10723225.8A Active EP2425082B1 (en) 2009-04-30 2010-04-08 Device for blocking a passage

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US (1) US9080370B2 (en)
EP (1) EP2425082B1 (en)
CN (1) CN102414390B (en)
FR (1) FR2945068B1 (en)
IL (1) IL215664A (en)
WO (1) WO2010125270A2 (en)

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Publication number Publication date
IL215664A0 (en) 2012-01-31
FR2945068B1 (en) 2011-07-22
US20120048482A1 (en) 2012-03-01
EP2425082A2 (en) 2012-03-07
CN102414390B (en) 2014-08-20
FR2945068A1 (en) 2010-11-05
WO2010125270A2 (en) 2010-11-04
CN102414390A (en) 2012-04-11
US9080370B2 (en) 2015-07-14
IL215664A (en) 2016-06-30
WO2010125270A3 (en) 2011-01-13

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