EP2636435A1 - Safety wall - Google Patents

Safety wall Download PDF

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Publication number
EP2636435A1
EP2636435A1 EP13157651.4A EP13157651A EP2636435A1 EP 2636435 A1 EP2636435 A1 EP 2636435A1 EP 13157651 A EP13157651 A EP 13157651A EP 2636435 A1 EP2636435 A1 EP 2636435A1
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EP
European Patent Office
Prior art keywords
wall according
security
security wall
air
pressure
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Granted
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EP13157651.4A
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German (de)
French (fr)
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EP2636435B1 (en
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Patrick Grosjean
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Target Plus
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Target Plus
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
    • A63K3/00—Equipment or accessories for racing or riding sports
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
    • A63K3/00—Equipment or accessories for racing or riding sports
    • A63K3/04—Hurdles or the like
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements

Definitions

  • the present invention relates to a security wall intended to be placed in front of at least one obstacle to partially absorb a collision shock with said obstacle, said security wall comprising a first element comprising an inlet arranged to be connected to a source of air under pressure, said first element being arranged to be inflated to a first predetermined pressure by means of air and having a collision zone, said first element being further connected to a second element arranged to be inflated to a second predetermined pressure at medium of air.
  • Such a security wall is known for example from the document FR2930452 describing an envelope comprising at least one inflatable element.
  • the safety wall described in this document is intended for the delimitation of sports activity areas or games.
  • envelopes comprising at least one inflatable element may be placed next to each other in order to form a more or less long security wall, the various envelopes being fixed using, for example, Velcro strips or a zipper system.
  • the document FR2928667 discloses a deformable safety barrier comprising a flexible structure equipped with at least one housing in which is inserted an inflatable bag.
  • This safety barrier is intended to be placed between a traffic lane and a vertical support to cushion the impact when a vehicle accidentally leaves the lane.
  • shock absorption depends on the predetermined and fixed pressure at which the airbags are inflated, excessive pressure is not indicated since it would harden the safety barrier and induce a "trampoline” effect. "In case of shock and too low pressure does not sufficiently dampen the shock.
  • the object of the invention is to overcome the drawbacks of the state of the art by providing an inflatable safety wall allowing a specific shock absorption, the pressure within the inflatable elements varying according to the magnitude of the collision force exerted on said security wall.
  • a security wall as indicated at the beginning characterized in that said first element communicates with said second element via at least one decompression valve allowing a transfer of the air contained in said first element to said second element beyond a predetermined pressure threshold in said first element, said second element further having at least one external air evacuation valve arranged for allow a transfer of the air contained in said second element to a surrounding medium, beyond a predetermined pressure threshold in said second element.
  • Such a security wall allows a specific shock absorption according to the magnitude of the collision force because the pressure within said inflatable elements can vary, the air under pressure in said first inflatable element having a collision zone that can pass to said second inflatable element beyond a predetermined pressure threshold in said first inflatable element via at least one pressure relief valve, said second element further having at least one external discharge valve of the air arranged to allow a transfer of the air contained in said second element to a surrounding medium, beyond a predetermined pressure threshold in said second element.
  • Such a security wall thus allows the initial pressure of the inflatable elements to vary according to the collision force exerted against the security wall.
  • this variation in pressure allows optimal absorption of the shock caused by a collision, the pressure of the inflatable elements adapting to the magnitude of the collision force.
  • said security wall further comprises a third element connected to said second element, said second and third elements communicating with each other via at least one decompression valve allowing a transfer of the air contained in said third element to said second element beyond a predetermined pressure threshold in said third element.
  • a third inflatable element enhances the effectiveness of said security wall, this third element contributing to the specific absorption of the collision force. Indeed, following a first partial absorption of said collision force by said first and second elements, said third element can still absorb a portion of the residual shock wave.
  • said third element is divided longitudinally into a first and a second compartments.
  • said first element is divided longitudinally into a first and a second compartment.
  • said second element is divided longitudinally into a first and a second compartments.
  • a division of the various elements forming said security wall makes it possible to distribute the collision force through a plurality of compartments, which contributes to an optimal distribution of said collision force which is thus all the better absorbed.
  • said first and second compartments communicate with each other via at least one decompression valve.
  • This communication between said first and second compartments formed from an inflatable element of said safety wall ensures optimal absorption of said collision force, under pressure of said first compartment can pass to said second compartment beyond a predetermined threshold of pressure in said first compartment.
  • said security wall comprises a plurality of air inlets each connected to a component (inflatable element or compartment formed from an inflatable element) of said safety wall.
  • the various components of said security wall are pressurized to an initial pressure that must be maintained permanently before a collision force is applied against said security wall.
  • several pressurized air inlets are provided and each connected to a component of said safety wall, the pressurized air which supplies these different components being supplied by one or more compressors.
  • said security wall according to the invention comprises fixing elements for holding said security wall in place. It is in fact to maintain said security wall in front of the obstacle so that said safety wall does not move under the effect of said collision force and that it can effectively absorb said collision force.
  • said fastening elements are fastening straps and / or rings in which a stud passes.
  • said collision zone comprises stiffening strips.
  • Said stiffening band allow the security wall to be maintained in a suitable position ensuring optimum absorption of said collision force.
  • These stiffening strips can also contribute to an optimal distribution of said collision force over the whole of said collision zone of said security wall.
  • At least one of said elements of said security wall is surmounted by an advertising cover.
  • said security wall according to the invention is formed by a succession of security walls placed side by side or superimposed.
  • the invention also relates to the use of a security wall for absorbing a collision shock.
  • the figure 1 illustrates a safety wall according to an embodiment according to the invention comprising a first inflatable element (1) and a second inflatable element (2) both supplied with compressed air via inlets (3) arranged to be connected to a compressor (not shown).
  • the first (1) and second (2) inflatable elements communicate with each other via a decompression valve (5) arranged to allow the passage of the air contained in said first element (1) to said second element ( 2) only when the air pressure in said first element (1) is greater than a threshold value.
  • Said second element further comprises an external air evacuation valve (6) arranged to allow an air outlet of said second element (2) to a surrounding medium only when the pressure of the air in said second element (2) is greater than a threshold value.
  • the figure 2 illustrates a security wall according to another embodiment according to the invention comprising the same elements as those described in figure 1 but further comprising a third inflatable element (7) supplied with compressed air via an inlet (3) arranged to be connected to a compressor (not shown), said third element communicating with said second element (2) via a decompression valve (8) arranged to allow passage of the air contained in said third member (7) to said second member (2) only when the air pressure in said third member (7) is greater than a threshold value.
  • the figure 3 illustrates a security wall according to the invention comprising a first inflatable element (1), a second inflatable element (2) and a third inflatable element (7).
  • the first inflatable element (1) has, on the collision zone (4), stiffening strips (9) ensuring the maintenance of the security wall, said security wall being also fixed to the ground via elements fasteners (10) themselves fixed to the ground with a stud (11).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Air Bags (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The wall has a first wall part (1) provided with an inlet (3) and arranged on a source. A second wall part (2) is connected to the first wall part. The first wall part communicates with the second wall part through a first pressure relief valve (5). The second wall part is provided with an external exhaust valve (6). A third wall part is connected to the second wall part by a second pressure relief valve (8) for transfer of air contained in the first wall part. The first, second and third wall parts are longitudinally divided into two compartments.

Description

La présente invention se rapporte à un mur de sécurité destiné à être placé devant au moins un obstacle pour absorber partiellement un choc de collision avec ledit obstacle, ledit mur de sécurité comprenant un premier élément comportant une entrée agencée pour être reliée à une source d'air sous pression, ledit premier élément étant agencé pour être gonflé à une première pression prédéterminée au moyen d'air et présentant une zone de collision, ledit premier élément étant en outre connecté à un deuxième élément agencé pour être gonflé à une deuxième pression prédéterminée au moyen d'air.The present invention relates to a security wall intended to be placed in front of at least one obstacle to partially absorb a collision shock with said obstacle, said security wall comprising a first element comprising an inlet arranged to be connected to a source of air under pressure, said first element being arranged to be inflated to a first predetermined pressure by means of air and having a collision zone, said first element being further connected to a second element arranged to be inflated to a second predetermined pressure at medium of air.

Un tel mur de sécurité est connu par exemple du document FR2930452 décrivant une enveloppe comportant au moins un élément gonflable. Le mur de sécurité décrit dans ce document est destiné à la délimitation d'aires d'activités sportives ou de jeux. Plusieurs enveloppes comportant au moins un élément gonflable peuvent être placées les unes à côté des autres afin de former un mur de sécurité plus au moins long, les différentes enveloppes étant fixées à l'aide, par exemple, de bandes auto-agrippantes ou d'un système de fermeture à glissière.Such a security wall is known for example from the document FR2930452 describing an envelope comprising at least one inflatable element. The safety wall described in this document is intended for the delimitation of sports activity areas or games. Several envelopes comprising at least one inflatable element may be placed next to each other in order to form a more or less long security wall, the various envelopes being fixed using, for example, Velcro strips or a zipper system.

Le document FR2928667 divulgue une barrière de sécurité déformable comprenant une structure souple équipée d'au moins un logement dans lequel est inséré un sac gonflable. Cette barrière de sécurité est destinée à être placée entre une voie de circulation et un support vertical afin d'amortir le choc lorsqu'un véhicule quitte accidentellement la voie de circulation. Avec une telle barrière de sécurité, l'amortissement du choc dépend de la pression prédéterminée et fixe à laquelle sont gonflés les sacs gonflables, une pression trop forte n'étant pas indiquée puisqu'elle durcirait la barrière de sécurité et induirait un effet « trampoline » en cas de choc et une pression trop faible ne permettant pas d'amortir suffisamment le choc.The document FR2928667 discloses a deformable safety barrier comprising a flexible structure equipped with at least one housing in which is inserted an inflatable bag. This safety barrier is intended to be placed between a traffic lane and a vertical support to cushion the impact when a vehicle accidentally leaves the lane. With such a safety barrier, shock absorption depends on the predetermined and fixed pressure at which the airbags are inflated, excessive pressure is not indicated since it would harden the safety barrier and induce a "trampoline" effect. "In case of shock and too low pressure does not sufficiently dampen the shock.

Malheureusement, de tels murs de sécurité sont composés d'éléments gonflés selon une pression prédéterminée et fixée une fois que le mur de sécurité est en place. Lorsqu'un véhicule entre en collision avec de tels murs de sécurité, l'absorption du choc dépend donc de la pression prédéterminée au sein des éléments gonflables, quelle que soit la grandeur de la force de collision. Ainsi, de tels murs de sécurité ne sont pas adaptés pour l'absorption de tous les chocs, cette absorption étant limitée par la pression prédéterminée et fixe des éléments gonflables.Unfortunately, such security walls are composed of elements inflated to a predetermined pressure and fixed once the security wall is in place. When a vehicle collides with such safety walls, the shock absorption therefore depends on the predetermined pressure within the inflatable elements, regardless of the magnitude of the collision force. Thus, such security walls are not suitable for the absorption of all shocks, this absorption being limited by the predetermined pressure and fixed inflatable elements.

L'invention a pour but de pallier les inconvénients de l'état de la technique en procurant un mur de sécurité gonflable permettant une absorption spécifique des chocs, la pression au sein des éléments gonflables variant selon la grandeur de la force de collision exercée sur ledit mur de sécurité.The object of the invention is to overcome the drawbacks of the state of the art by providing an inflatable safety wall allowing a specific shock absorption, the pressure within the inflatable elements varying according to the magnitude of the collision force exerted on said security wall.

Ainsi, pour résoudre ces problèmes, il est prévu suivant l'invention, un mur de sécurité tel qu'indiqué au début caractérisé en ce que ledit premier élément communique avec ledit deuxième élément par l'intermédiaire d'au moins une valve de décompression permettant un transfert de l'air contenu dans ledit premier élément vers ledit deuxième élément au-delà d'un seuil prédéterminé de pression dans ledit premier élément, ledit deuxième élément présentant en outre au moins une valve d'évacuation externe de l'air agencée pour permettre un transfert de l'air contenu dans ledit deuxième élément vers un milieu environnant, au-delà d'un seuil prédéterminé de pression dans ledit deuxième élément.Thus, to solve these problems, there is provided according to the invention, a security wall as indicated at the beginning characterized in that said first element communicates with said second element via at least one decompression valve allowing a transfer of the air contained in said first element to said second element beyond a predetermined pressure threshold in said first element, said second element further having at least one external air evacuation valve arranged for allow a transfer of the air contained in said second element to a surrounding medium, beyond a predetermined pressure threshold in said second element.

Un tel mur de sécurité permet un absorption spécifique des chocs selon la grandeur de la force de collision car la pression au sein desdits éléments gonflables peut varier, l'air sous pression dans ledit premier élément gonflable présentant une zone de collision pouvant passer vers ledit deuxième élément gonflable au-delà d'un seuil prédéterminé de pression dans ledit premier élément gonflable par l'intermédiaire d'au moins une valve de décompression, ledit deuxième élément présentant en outre au moins une valve d'évacuation externe de l'air agencée pour permettre un transfert de l'air contenu dans ledit deuxième élément vers un milieu environnant, au-delà d'un seuil prédéterminé de pression dans ledit deuxième élément.Such a security wall allows a specific shock absorption according to the magnitude of the collision force because the pressure within said inflatable elements can vary, the air under pressure in said first inflatable element having a collision zone that can pass to said second inflatable element beyond a predetermined pressure threshold in said first inflatable element via at least one pressure relief valve, said second element further having at least one external discharge valve of the air arranged to allow a transfer of the air contained in said second element to a surrounding medium, beyond a predetermined pressure threshold in said second element.

Un tel mur de sécurité permet donc à la pression initiale des éléments gonflables de varier selon la force de collision exercée contre le mur de sécurité. Avantageusement, cette variation de pression permet une absorption optimale du choc occasionné par une collision, la pression des éléments gonflables s'adaptant à la grandeur de la force de collision. Ainsi, les inconvénients rencontrés avec les murs de sécurités gonflables décrits dans l'état de la technique tel que l'effet « trampoline » (pression trop élevée des éléments gonflables) sont surmontés avec la présente invention.Such a security wall thus allows the initial pressure of the inflatable elements to vary according to the collision force exerted against the security wall. Advantageously, this variation in pressure allows optimal absorption of the shock caused by a collision, the pressure of the inflatable elements adapting to the magnitude of the collision force. Thus, the disadvantages encountered with the inflatable safety walls described in the state of the art such as the "trampoline" effect (too high pressure of the inflatable elements) are overcome with the present invention.

Selon un mode de réalisation du mur de sécurité selon l'invention, ledit mur de sécurité comprend en outre un troisième élément connecté audit deuxième élément, lesdits deuxième et troisième éléments communicant entre eux par l'intermédiaire d'au moins une valve de décompression permettant un transfert de l'air contenu dans ledit troisième élément vers ledit deuxième élément au-delà d'un seuil prédéterminé de pression dans ledit troisième élément. La présence d'un troisième élément gonflable renforce l'efficacité dudit mur de sécurité, ce troisième élément contribuant à l'absorption spécifique de la force de collision. En effet, suite à une première absorption partielle de ladite force de collision par lesdits premier et deuxième éléments, ledit troisième élément peut encore absorber une partie de l'onde de choc résiduelle.According to one embodiment of the security wall according to the invention, said security wall further comprises a third element connected to said second element, said second and third elements communicating with each other via at least one decompression valve allowing a transfer of the air contained in said third element to said second element beyond a predetermined pressure threshold in said third element. The presence of a third inflatable element enhances the effectiveness of said security wall, this third element contributing to the specific absorption of the collision force. Indeed, following a first partial absorption of said collision force by said first and second elements, said third element can still absorb a portion of the residual shock wave.

Selon un autre mode de réalisation du mur de sécurité selon l'invention, ledit troisième élément est divisé longitudinalement en un premier et en un deuxième compartiments.According to another embodiment of the security wall according to the invention, said third element is divided longitudinally into a first and a second compartments.

Selon un autre mode de réalisation du mur de sécurité selon l'invention, ledit premier élément est divisé longitudinalement en un premier et en un deuxième compartiments.According to another embodiment of the security wall according to the invention, said first element is divided longitudinally into a first and a second compartment.

Selon un autre mode de réalisation du mur de sécurité selon l'invention, ledit deuxième élément est divisé longitudinalement en un premier et en un deuxième compartiments.According to another embodiment of the security wall according to the invention, said second element is divided longitudinally into a first and a second compartments.

Une division des différents éléments formant ledit mur de sécurité permet de répartir la force de collision au travers d'une pluralité de compartiments, ce qui contribue à une répartition optimale de ladite force de collision qui est ainsi d'autant mieux absorbée.A division of the various elements forming said security wall makes it possible to distribute the collision force through a plurality of compartments, which contributes to an optimal distribution of said collision force which is thus all the better absorbed.

Avantageusement, lesdits premier et deuxième compartiments communiquent entre eux par l'intermédiaire d'au moins une valve de décompression. Cette communication entre lesdits premier et deuxième compartiments formés au départ d'un élément gonflable dudit mur de sécurité assure une absorption optimale de ladite force de collision, l'ai sous pression dudit premier compartiment pouvant passer vers ledit deuxième compartiment au-delà d'un seuil prédéterminé de pression dans ledit premier compartiment.Advantageously, said first and second compartments communicate with each other via at least one decompression valve. This communication between said first and second compartments formed from an inflatable element of said safety wall ensures optimal absorption of said collision force, under pressure of said first compartment can pass to said second compartment beyond a predetermined threshold of pressure in said first compartment.

De préférence, ledit mur de sécurité selon l'invention comprend plusieurs entrées d'air connectées chacune à un composant (élément gonflable ou compartiment formé au départ d'un élément gonflable) dudit mur de sécurité. Les différents composants dudit mur de sécurité sont pressurisés selon une pression initiale qu'il convient de maintenir en permanence avant qu'une force de collision ne soit appliquée contre ledit mur de sécurité. A cette fin, plusieurs entrées d'air sous pression sont prévues et reliées chacune à un composant dudit mur de sécurité, l'air sous pression qui alimente ces différents composants étant fourni par un ou plusieurs compresseurs.Preferably, said security wall according to the invention comprises a plurality of air inlets each connected to a component (inflatable element or compartment formed from an inflatable element) of said safety wall. The various components of said security wall are pressurized to an initial pressure that must be maintained permanently before a collision force is applied against said security wall. To this end, several pressurized air inlets are provided and each connected to a component of said safety wall, the pressurized air which supplies these different components being supplied by one or more compressors.

Préférentiellement, ledit mur de sécurité selon l'invention comprend des éléments de fixation pour le maintien en place dudit mur de sécurité. Il convient en effet de maintenir ledit mur de sécurité devant l'obstacle pour que ledit mur de sécurité ne bouge pas sous l'effet de ladite force de collision et qu'il puisse absorber efficacement ladite force de collision.Preferably, said security wall according to the invention comprises fixing elements for holding said security wall in place. It is in fact to maintain said security wall in front of the obstacle so that said safety wall does not move under the effect of said collision force and that it can effectively absorb said collision force.

De préférence, lesdits éléments de fixation sont des sangles de fixation et/ou des anneaux dans lesquels passent un piton.Preferably, said fastening elements are fastening straps and / or rings in which a stud passes.

Avantageusement, ladite zone de collision comprend des bandes de rigidification. Lesdites bande de rigidification permettent le maintien du mur de sécurité dans une position adéquate assurant une absorption optimale de ladite force de collision. Ces bandes de rigidification peuvent également contribuer à une répartition optimale de ladite force de collision sur l'ensemble de ladite zone de collision dudit mur de sécurité.Advantageously, said collision zone comprises stiffening strips. Said stiffening band allow the security wall to be maintained in a suitable position ensuring optimum absorption of said collision force. These stiffening strips can also contribute to an optimal distribution of said collision force over the whole of said collision zone of said security wall.

De préférence, au moins un desdits éléments dudit mur de sécurité est surmonté par une bâche publicitaire.Preferably, at least one of said elements of said security wall is surmounted by an advertising cover.

Avantageusement, ledit mur de sécurité selon l'invention est formé par une succession de murs de sécurité placés côte à côte ou superposés.Advantageously, said security wall according to the invention is formed by a succession of security walls placed side by side or superimposed.

D'autres formes du mur de sécurité suivant l'invention sont indiquées dans les revendications annexées.Other forms of the security wall according to the invention are indicated in the appended claims.

L'invention porte également sur l'utilisation d'un mur de sécurité pour absorber un choc de collision.The invention also relates to the use of a security wall for absorbing a collision shock.

D'autres formes d'utilisation d'un mur de sécurité suivant l'invention sont indiquées dans les revendications annexées.Other forms of use of a security wall according to the invention are indicated in the appended claims.

D'autres caractéristiques, détails et avantages de l'invention ressortiront de la description donnée ci-après, à titre non limitatif et en faisant référence aux dessins annexés.

  • La figure 1 est une illustration d'un mode de réalisation du mur de sécurité selon l'invention.
  • La figure 2 est une autre illustration d'un mode de réalisation du mur de sécurité selon l'invention.
  • La figure 3 est une illustration d'un mur de sécurité selon l'invention où apparaissent les éléments de rigidification et de fixation dudit mur de sécurité.
Other features, details and advantages of the invention will become apparent from the description given below, without limitation and with reference to the accompanying drawings.
  • The figure 1 is an illustration of an embodiment of the security wall according to the invention.
  • The figure 2 is another illustration of an embodiment of the security wall according to the invention.
  • The figure 3 is an illustration of a security wall according to the invention where appear the stiffening elements and fixing said security wall.

Sur les figures, les éléments identiques ou analogues portent les mêmes références.In the figures, identical or similar elements bear the same references.

La figure 1 illustre un mur de sécurité selon un mode de réalisation selon l'invention comprenant un premier élément gonflable (1) et un deuxième élément gonflable (2) tous deux alimentés en air comprimé via des entrées (3) agencées pour être reliées à un compresseur (non illustré). Les premier (1) et deuxième (2) éléments gonflables communiquent entre eux par l'intermédiaire d'une valve de décompression (5) agencée pour permettre le passage de l'air contenu dans ledit premier élément (1) vers ledit deuxième élément (2) uniquement lorsque la pression de l'air dans ledit premier élément (1) est supérieure à une valeur seuil. Ledit deuxième élément comprend en outre une valve d'évacuation externe de l'air (6) agencée pour permettre une sortie de l'air dudit deuxième élément (2) vers un milieu environnant uniquement lorsque la pression de l'air dans ledit deuxième élément (2) est supérieure à une valeur seuil. Ainsi, lorsqu'une force de collision (F) est appliquée contre ledit mur de sécurité sur ladite zone de collision (4) et lorsque la valeur seuil de pression de l'air dans ledit premier élément (1) est dépassée, ladite valve de décompression (5) s'ouvre sous l'effet de la pression et permet un passage de l'air dudit premier élément (1) vers ledit deuxième élément (2) dont la valve d'évacuation externe (6) s'ouvre lorsque la pression de l'air au sein dudit deuxième élément (2) dépasse une valeur seuil. La force de collision (F) est donc d'abord absorbée partiellement dans ledit premier élément (1) puis dans ledit deuxième élément (2) où est passé, suite à l'application de ladite force de collision (F) sur ladite zone de collision (4), de l'air initialement contenu dans ledit premier élément (1). La valve d'évacuation externe (6) permet que la pression au sein dudit deuxième élément (2) ne soit pas excessive selon une valeur seuil définissant l'ouverture de ladite valve d'évacuation externe (6).The figure 1 illustrates a safety wall according to an embodiment according to the invention comprising a first inflatable element (1) and a second inflatable element (2) both supplied with compressed air via inlets (3) arranged to be connected to a compressor ( not shown). The first (1) and second (2) inflatable elements communicate with each other via a decompression valve (5) arranged to allow the passage of the air contained in said first element (1) to said second element ( 2) only when the air pressure in said first element (1) is greater than a threshold value. Said second element further comprises an external air evacuation valve (6) arranged to allow an air outlet of said second element (2) to a surrounding medium only when the pressure of the air in said second element (2) is greater than a threshold value. Thus, when a collision force (F) is applied against said safety wall on said collision zone (4) and when the threshold value of air pressure in said first element (1) is exceeded, said decompression (5) opens under the effect of pressure and allows a passage of air from said first element (1) to said second element (2), the external discharge valve (6) opens when the air pressure within said second element (2) exceeds a threshold value. The collision force (F) is therefore first partially absorbed in said first element (1) and then in said second element (2) where, following the application of said collision force (F), said anti-collision force is passed over said zone. collision (4), air initially contained in said first element (1). The external discharge valve (6) allows the pressure within said second element (2) not to be excessive according to a threshold value defining the opening of said external discharge valve (6).

La figure 2 illustre un mur de sécurité selon un autre mode de réalisation selon l'invention comprenant les mêmes éléments que ceux décrits à la figure 1 mais comprenant en outre un troisième élément gonflable (7) alimenté en air comprimé via une entrée (3) agencée pour être reliée à un compresseur (non illustré), ledit troisième élément communicant avec ledit deuxième élément (2) par l'intermédiaire d'une valve de décompression (8) agencée pour permettre le passage de l'air contenu dans ledit troisième élément (7) vers ledit deuxième élément (2) uniquement lorsque la pression de l'air dans ledit troisième élément (7) est supérieure à une valeur seuil. Ainsi, lorsqu'une force de collision (F) est appliquée contre ledit mur de sécurité sur ladite zone de collision (4) et lorsque la valeur seuil de pression de l'air dans ledit premier élément (1) est dépassée, ladite valve de décompression (5) s'ouvre sous l'effet de la pression et permet un passage de l'air dudit premier élément (1) vers ledit deuxième élément (2) dont la valve d'évacuation externe (6) s'ouvre lorsque la pression de l'air au sein dudit deuxième élément (2) dépasse une valeur seuil. La force de collision (F) est donc d'abord absorbée partiellement dans ledit premier élément (1) puis dans ledit deuxième élément (2) et enfin dans ledit troisième élément (7). La valve d'évacuation externe (6) permet que la pression au sein dudit deuxième élément (2) ne soit pas excessive selon une valeur seuil définissant l'ouverture de ladite valve d'évacuation externe (6).The figure 2 illustrates a security wall according to another embodiment according to the invention comprising the same elements as those described in figure 1 but further comprising a third inflatable element (7) supplied with compressed air via an inlet (3) arranged to be connected to a compressor (not shown), said third element communicating with said second element (2) via a decompression valve (8) arranged to allow passage of the air contained in said third member (7) to said second member (2) only when the air pressure in said third member (7) is greater than a threshold value. Thus, when a collision force (F) is applied against said safety wall on said collision zone (4) and when the threshold value of air pressure in said first element (1) is exceeded, said decompression (5) opens under the effect of pressure and allows a passage of air from said first element (1) to said second element (2), the external discharge valve (6) opens when the air pressure within said second element (2) exceeds a threshold value. The collision force (F) is therefore first partly absorbed in said first element (1) and then in said second element (2) and finally in said third element (7). The external discharge valve (6) allows the pressure within said second element (2) not to be excessive according to a threshold value defining the opening of said external discharge valve (6).

La figure 3 illustre un mur de sécurité selon l'invention comprenant un premier élément gonflable (1), un deuxième élément gonflable (2) et un troisième élément gonflable (7). Le premier élément gonflable (1) présente, sur la zone de collision (4), des bandes de rigidification (9) assurant le maintien du mur de sécurité, ledit mur de sécurité étant par ailleurs fixé au sol par l'intermédiaire d'éléments de fixation (10) eux-mêmes fixés au sol à l'aide d'un piton (11).The figure 3 illustrates a security wall according to the invention comprising a first inflatable element (1), a second inflatable element (2) and a third inflatable element (7). The first inflatable element (1) has, on the collision zone (4), stiffening strips (9) ensuring the maintenance of the security wall, said security wall being also fixed to the ground via elements fasteners (10) themselves fixed to the ground with a stud (11).

Il est bien entendu que la présente invention n'est en aucune façon limitée aux formes de réalisations décrites ci-dessus et que bien des modifications peuvent y être apportées sans sortir du cadre des revendications annexées.It is understood that the present invention is in no way limited to the embodiments described above and that many modifications can be made without departing from the scope of the appended claims.

Claims (13)

Mur de sécurité destiné à être placé devant au moins un obstacle pour absorber partiellement un choc de collision avec ledit obstacle, ledit mur de sécurité comprenant un premier élément (1) comportant une entrée (3) agencée pour être reliée à une source d'air sous pression, ledit premier élément (1) étant agencé pour être gonflé à une première pression prédéterminée au moyen d'air et présentant une zone de collision (4), ledit premier élément (1) étant en outre connecté à un deuxième élément (2) agencé pour être gonflé à une deuxième pression prédéterminée au moyen d'air, caractérisé en ce que
ledit premier élément (1) communique avec ledit deuxième élément (2) par l'intermédiaire d'au moins une valve de décompression (5) permettant un transfert de l'air contenu dans ledit premier élément (1) vers ledit deuxième élément (2) au-delà d'un seuil prédéterminé de pression dans ledit premier élément (1), ledit deuxième élément (2) présentant en outre au moins une valve d'évacuation (6) externe de l'air agencée pour permettre un transfert de l'air contenu dans ledit deuxième élément (2) vers un milieu environnant, au-delà d'un seuil prédéterminé de pression dans ledit deuxième élément (2).Safety wall intended to be placed in front of at least one obstacle to partially absorb collision shock with said obstacle, said safety wall comprising a first element (1) having an inlet (3) arranged to be connected to an air source under pressure, said first member (1) being arranged to be inflated to a first predetermined pressure by means of air and having a collision zone (4), said first member (1) being further connected to a second member (2) ) arranged to be inflated to a second predetermined pressure by means of air, characterized in that
said first element (1) communicates with said second element (2) via at least one decompression valve (5) allowing a transfer of the air contained in said first element (1) to said second element (2) ) beyond a predetermined threshold of pressure in said first element (1), said second element (2) further having at least one external air discharge valve (6) arranged to allow a transfer of the air contained in said second element (2) to a surrounding medium, beyond a predetermined pressure threshold in said second element (2). Mur de sécurité selon la revendication 1, caractérisé en ce qu'il comprend une outre un troisième élément (7) connecté audit deuxième élément (2), lesdits deuxième (2) et troisième (7) éléments communicant entre eux par l'intermédiaire d'au moins une valve de décompression (8) permettant un transfert de l'air contenu dans ledit troisième élément (7) vers ledit deuxième élément (2) au-delà d'un seuil prédéterminé de pression dans ledit troisième élément (7).Security wall according to claim 1, characterized in that it comprises a further third element (7) connected to said second element (2), said second (2) and third (7) elements communicating with each other via at least one decompression valve (8) allowing a transfer of the air contained in said third element (7) to said second element (2) beyond a predetermined threshold of pressure in said third element (7). Mur de sécurité selon la revendication 2, caractérisé en ce que ledit troisième élément (7) est divisé longitudinalement en un premier et en un deuxième compartiments.Security wall according to claim 2, characterized in that said third element (7) is divided longitudinally into a first and a second compartments. Mur de sécurité selon les revendications 1 à 3, caractérisé en ce que ledit premier élément (1) est divisé longitudinalement en un premier et en un deuxième compartiments.Safety wall according to claims 1 to 3, characterized in that said first element (1) is divided longitudinally into a first and a second compartments. Mur de sécurité selon les revendications 1 à 4, caractérisé en ce que ledit deuxième élément (2) est divisé longitudinalement en un premier et en un deuxième compartiments.Security wall according to claims 1 to 4, characterized in that said second element (2) is divided longitudinally into a first and a second compartments. Mur de sécurité selon les revendications 3 à 5, caractérisé en ce que lesdits premier et deuxième compartiments communiquent entre eux par l'intermédiaire d'au moins une valve de décompression.Security wall according to claims 3 to 5, characterized in that said first and second compartments communicate with each other via at least one decompression valve. Mur de sécurité selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comprend plusieurs entrées (3) d'air connectées, chacune connectée à un élément dudit mur de sécurité.Security wall according to any one of claims 1 to 6, characterized in that it comprises a plurality of connected air inlets (3), each connected to an element of said security wall. Mur de sécurité selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comprend des éléments de fixation (10) pour le maintien en place dudit mur de sécurité.Security wall according to any one of claims 1 to 7, characterized in that it comprises fastening elements (10) for holding in place said security wall. Mur de sécurité selon la revendication 8, caractérisé en ce que lesdits éléments de fixation (10) sont des sangles de fixation et/ou des anneaux dans lesquels passent un piton (11).Security wall according to claim 8, characterized in that said fastening elements (10) are fastening straps and / or rings in which pass a peak (11). Mur de sécurité selon l'une des quelconques revendications 1 à 9, caractérisé en ce que ladite zone de collision (4) comprend des bandes de rigidification (9).Safety wall according to one of claims 1 to 9, characterized in that said collision zone (4) comprises stiffening strips (9). Mur de sécurité selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'au moins un desdits éléments dudit mur de sécurité est surmonté par une bâche publicitaire.Security wall according to any one of claims 1 to 10, characterized in that at least one of said elements of said security wall is surmounted by an advertising cover. Mur de sécurité selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'il est formé par une succession de murs de sécurité placés côte à côte ou superposés.Security wall according to any one of claims 1 to 11, characterized in that it is formed by a succession of security walls placed side by side or superimposed. Utilisation d'un mur de sécurité selon l'une des quelconques revendications 1 à 12, pour absorber un choc de collision.Use of a safety wall according to any one of claims 1 to 12 for absorbing a collision shock.
EP20130157651 2012-03-05 2013-03-04 Safety wall Not-in-force EP2636435B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU91956A LU91956B1 (en) 2012-03-05 2012-03-05 Security wall
BE2012/0228A BE1020156A3 (en) 2012-03-05 2012-04-03 SECURITY WALL.

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EP2636435A1 true EP2636435A1 (en) 2013-09-11
EP2636435B1 EP2636435B1 (en) 2015-05-13

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WO2015199573A1 (en) 2014-06-26 2015-12-30 Wostec, Inc. Wavelike hard nanomask on a topographic feature and methods of making and using
US10465349B2 (en) * 2017-12-12 2019-11-05 Care Barrier Limited Illuminated barrier apparatus
CN112647458B (en) * 2020-09-23 2022-06-28 重庆市城投路桥管理有限公司 BIM municipal bridge pier buffer stop based on thing networking

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FR2928667A1 (en) 2008-03-11 2009-09-18 Jlfo Satt Sarl Deformable safety barrier for e.g. ski trail for alpine skiing in sport competition, has flexible structure equipped with housing extended along main dimension of structure, and air bag inserted in structure
FR2930452A1 (en) 2008-04-25 2009-10-30 Jlfo Satt Sarl Envelope for forming playground or sports area defining structure during e.g. competition, has flat and rigid ends and compartmentalized bottom that are foldable on one another, when envelope is not in usage configuration

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WO1998033985A1 (en) * 1997-02-03 1998-08-06 Kredietbank Road barrier device
FR2796661A1 (en) * 1999-07-22 2001-01-26 Nader Chukri Abi Shock absorbing wall e.g. for motor racing circuit comprises series of compartmented tubes or rolls filled with compressed air or water
FR2928667A1 (en) 2008-03-11 2009-09-18 Jlfo Satt Sarl Deformable safety barrier for e.g. ski trail for alpine skiing in sport competition, has flexible structure equipped with housing extended along main dimension of structure, and air bag inserted in structure
FR2930452A1 (en) 2008-04-25 2009-10-30 Jlfo Satt Sarl Envelope for forming playground or sports area defining structure during e.g. competition, has flat and rigid ends and compartmentalized bottom that are foldable on one another, when envelope is not in usage configuration

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ES2544642T3 (en) 2015-09-02
BE1020156A3 (en) 2013-05-07
EP2636435B1 (en) 2015-05-13
US20130228730A1 (en) 2013-09-05
LU91956B1 (en) 2013-09-06

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