EP2599922B1 - System for linking sliding parts of a road safety barrier and safety barrier provided with such a system - Google Patents

System for linking sliding parts of a road safety barrier and safety barrier provided with such a system Download PDF

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Publication number
EP2599922B1
EP2599922B1 EP12193334.5A EP12193334A EP2599922B1 EP 2599922 B1 EP2599922 B1 EP 2599922B1 EP 12193334 A EP12193334 A EP 12193334A EP 2599922 B1 EP2599922 B1 EP 2599922B1
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European Patent Office
Prior art keywords
bar
notches
parts
pin
sliding parts
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EP12193334.5A
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German (de)
French (fr)
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EP2599922A1 (en
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Pascal Proudy
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Ecer
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Ecer
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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
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0423—Details of rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/103—Parapets, railings ; Guard barriers or road-bridges

Definitions

  • the present invention relates to a connecting system of sliding parts of a safety barrier for traffic lanes and a safety barrier equipped with such a system.
  • a deck almost always includes an expansion joint at the ends of the deck to allow expansion and contraction of the deck under the effect of heat (depending on the season, geographical location or time of day or weather). night).
  • This expansion joint is constituted by a width spacing calculated according to the expected expansion. To ensure the continuity of the traffic lane, this spacing is most often provided with two combs facing each other and arranged so that the teeth of the combs are interleaved. Thus, when the bridge expands or contracts, the combs can move closer to or away from each other while ensuring the filling of the spacing and continuity of the traffic lane.
  • Other forms of bridge expansion joints also exist.
  • FIG. 1a The first is illustrated in figures 1 a and 1b.
  • a connecting sleeve A is used to connect two sliding parts B and B '.
  • the sleeve A and the sliding parts comprise holes C allowing the passage of through bolts firmly immobilizing the sliding parts B and B 'on the sleeve A.
  • This arrangement allows the normal operation of the barrier in case of shock, that is to say that the sleeve transmits the mechanical force between the part B and the part B ', which allows the barrier to absorb the shock and hold the vehicle.
  • connection sleeve D comprises oblong holes E of length calculated according to the maximum expansion envisaged. This sleeve D thus allows the mechanical connection of the sliding parts B and B ', while allowing a distance and a calibrated approach.
  • This system allows movement related to expansion while ensuring the holding of the barrier in case of impact.
  • the barrier may not absorb the shock of the vehicle quickly enough which can cause very significant damage.
  • the absorption of the shock and the restraint only starts when the elements B and B 'are sufficiently far apart for the bolts to abut at the ends of the holes E.
  • This device also requires assembly by a team of specialists who must, in fine, make the final adjustments according to the realities of the field.
  • the object of the invention is therefore to propose a system for connecting the sliding parts of a safety barrier for traffic lanes that can be adapted to any expansion, including a significant expansion greater than 10 cm, of economic maintenance that can be adapted the type of barrier to allow retaining small vehicles (cars) and / or large jigs (buses or trucks), allowing easy manufacture and installation and in a limited overall size.
  • the invention also proposes a safety barrier for traffic lanes comprising two sliding parts arranged in the extension of one another in the position of use, characterized in that it comprises a preceding connection system between the two sliding parts to maintain continuity between the two parts while allowing a movement of spacing and relative approximation of the two parts.
  • upper and lower family must be understood in relation to the direction G of the gravitational force in the operational position of the safety barrier, that is, when it is placed along a traffic lane, ready for use.
  • transverse or “longitudinal” families must be understood, respectively, as “perpendicular” or “parallel” to the direction of movement of the vehicles when the barrier is in operational position.
  • the invention proposes a system for connecting sliding parts of a safety barrier whose operation differs according to the speed of the relative movement between the sliding parts. Thus, it allows a distance and a free approximation of the parts in the case of a slow movement, but prevents any removal of the parts in the case of rapid relative movement, so that the latter retain the accident vehicle.
  • Slow movement is understood to mean a movement generated by contraction / dilation. This category of movement usually does not exceed one meter per hour.
  • a fast movement is a movement generated by a shock.
  • This movement category typically exceeds one kilometer per hour, at least a thousand times faster than the expansion movement. For example, for the shock of a car at 50 km / h, the movement is fifty thousand times faster than the dilation.
  • the system comprises at least two bars 10-20, one so-called “guide”, the other 20 so-called “blocking”, mounted parallel to each other and relative to the sliding parts of the barrier.
  • Each type of bar 10-20 is integral with a fixing portion 30 provided with holes 40 for fixing on the end of the sliding parts of the barrier (not shown).
  • this fixing portion 30 is oriented perpendicular to the bars 10 and 20, so that the holes 40 have a perpendicular orientation relative to the bars 10 and 20 for fixing from above and / or below the bars in conditions normal use.
  • the guide bar 10 intended to be anchored to one of the two sliding parts (not shown), is provided on a portion L1 of its length L with an oblong slot 11.
  • the length L1 is defined according to the maximum relative displacement calculated due to the expansion / contraction.
  • the locking bar 20 intended to be anchored to the other of the two sliding parts (not shown), is provided with at least one pin 21 intended to be inserted in the oblong slot 11 of the guide bar 10 (see FIG. figure 4 ).
  • staggered means that the detents 15 extend in the oblong slot 11 between the symmetrical notches 14 while leaving the free passage for the pin 21 along the lower guide surface 12. necessarily means that a catch 15 is equidistant between two symmetrical notches 14.
  • this asymmetrical structure of the oblong slot allows a relative displacement back and forth of the sliding parts of the safety barrier during a slow movement, and a blocking of the relative movement during an impact against the barrier (fast spacing of the parts slip).
  • the Figures 5A to 5D illustrate the case of a slow relative movement in the movement direction M.
  • the pins 21 rest on the lower guide surface 12 by gravity and are guided slowly and freely (i.e. without locking).
  • the pins are located initially between two symmetrical notches 14 and resting on the lower guide surface 12.
  • Figure 5B the slow movement pushes the pins 21 along the notches, on the ramp 16.
  • Figure 5C the slow movement continues, and the pins 21 slide along the ramp 18 notches 14.
  • the pins are between the two notches 14 following.
  • the pins slide along the lower guide surface 12, along the ramps 18 and along the ramps 16.
  • the notches 14 are symmetrical, that is to say say that the ramps have an identical angle with respect to the horizontal, to ensure a return movement identical to the forward movement.
  • the ramps 16 and 18 can be asymmetrical, provided that they allow a sliding without locking of the pin or pins 21 along the lower guide surface 12, that is to say, they form an angle ⁇ obtus strictly greater than 90 ° with the surface located between the notches 14.
  • FIGs 6A to 6D illustrate the case of a rapid movement of the two bars 10 and 20.
  • Figure 6A the pins are located initially between two symmetrical notches 14 and resting on the lower guide surface 12.
  • Figure 6B the movement guides the pins along the ramps 16 of the notches 14. The movement being abrupt and rapid, the pins 21 are projected by the ramps 16 to the upper guide surface 13 before the gravitational force attracts the pins towards the bottom surface 12 ( Figure 6C) .
  • the pins are then guided towards the detents 15 of the upper surface and engage in these detents 15 to block the spacing of the bars 10 and 20.
  • the detents 15 comprise a guide surface 17 and a stop surface 19 at most perpendicular to the direction of movement M, so that when the pin is guided towards this face 19, the relative movement of the two bars 10 and 20 stops.
  • "At most" perpendicular means that the stop surface 19 forms an angle ⁇ less than or equal to 90 ° with the horizontal and in the direction of the spacing of the two bars. On the figure 7 the stop surfaces 19 are perpendicular.
  • the stop surface 19 of the detents 15 further comprises an abutment surface 19a, so that the pin is locked at least temporarily in the detent.
  • the stop surface 19 makes an acute angle ⁇ with the horizontal and in the direction of the spacing of the two bars.
  • the pin is not only stopped but also blocked to prevent it falling too quickly on the lower guide surface 12.
  • the stop surface 19 can be flat or curved, as long as at least one of the tangents to the curve forms an angle of 90 ° to the horizontal.
  • FIG. 5 to 9 illustrate variants in which the detents 15 are asymmetrical. This means that these variants have a mounting direction to ensure that a fast gap is blocked.
  • stops are symmetrical facilitates the installation of the system according to the invention since it no longer has a mounting direction. It can be installed in any direction.
  • connection system may comprise several guide bars and / or blocking bars.
  • the system comprises two parallel guide bars 10. They are secured to one another by a fastening portion 30 identical to the embodiment of the figure 2 .
  • the figure 13 illustrates a first variant of a locking bar 20 which can be used in combination with the guide bars of the figure 12 .
  • This locking bar 20 comprises a pin 22 extending on either side of the locking bar for engaging in each oblong slot of the guide bars 10.
  • the assembly is illustrated in FIG. figure 14 , or the locking bar 20 is inserted between the guide bars 10. Then the pin is locked in the locking bar 20 so as to be engaged in each oblong slot guide bars 10, on both sides of the blocking bar 10.
  • the figure 15 illustrates a second variant that can be used in combination with the guide bars of the figure 12 , comprising two locking bars 20 secured to one another by a fixing portion 30 identical to the embodiment of the figure 3 .
  • These locking bars comprise a common pin 23 intended to engage in the oblong slots of the guide bars 10.
  • the guide bars 10 and the locking bars 20 are alternated in parallel fashion and the pin 23 is locked in the locking bars 20 so as to be engaged in each oblong slot of the guide bars 10, on either side of the locking bars 10.
  • guide bars 10 and blocking 20 increases the rigidity of the connection system according to the invention, and therefore its impact resistance.
  • the connecting system according to the invention may also comprise one or more pins 24, to ensure a perfectly parallel relative movement of the bars 10-20. This also ensures the blockage in case of breakage of one of the pins.
  • the pin can have different sections (round, square, triangular ).
  • the securing part of the bars to the sliding elements of the barrier may be different from that which is shown in FIGS. Figures 2 to 4 and 12 to 16 without departing from the scope of the invention.
  • the fastening portion 50 is arranged in the extension of the bars and parallel to bar cases, so that the holes 51 and fastening means (bolts on the figures 1 ) 52 allow lateral attachment, under normal conditions of use, bars 10-20 to the sliding parts of the safety barrier.
  • connection system As illustrated in Figures 17 and 18 it is also possible to add to the connecting system according to the invention, a cover or a connecting sleeve 60 to ensure the continuity of the shape of the sliding element.
  • connection system can be fixed to two sliding elements overlapping sufficiently to ensure the continuity of the barrier in case of expansion.
  • the installation of the system according to the invention is very easy, since it suffices to fix the guide and locking bars at the ends of the sliding parts of the barrier so that the bars can move away and come closer to each other. one of the other. It is not necessary to make a fine adjustment.
  • the calculation of the maximum expansion gives a relative position of the guide and locking bars (position of the pin in the notches). Once this relative position is established, it is sufficient to fix the bars in this position.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Slide Fasteners (AREA)

Description

La présente invention se rapporte à un système de liaison de pièces de glissement d'une barrière de sécurité pour voies de circulation et à une barrière de sécurité équipée d'un tel système.The present invention relates to a connecting system of sliding parts of a safety barrier for traffic lanes and a safety barrier equipped with such a system.

Un pont comprend presque systématiquement un joint de dilatation aux extrémités du tablier pour permettre la dilatation et la contraction du tablier sous l'effet de la chaleur (en fonction de la saison, de la situation géographique ou de l'heure du jour ou de la nuit). Ce joint de dilatation est constitué par un espacement de largeur calculée en fonction de la dilatation prévue. Afin d'assurer la continuité de la voie de circulation, cet espacement est le plus souvent muni de deux peignes en regard l'un de l'autre et agencé de manière à ce que les dents des peignes soient imbriquées. Ainsi, lorsque le pont se dilate ou se contracte, les peignes peuvent se rapprocher ou s'éloigner l'un de l'autre tout en assurant le comblement de l'espacement et la continuité de la voie de circulation. D'autres formes de joints de dilatation pour pont existent également.A deck almost always includes an expansion joint at the ends of the deck to allow expansion and contraction of the deck under the effect of heat (depending on the season, geographical location or time of day or weather). night). This expansion joint is constituted by a width spacing calculated according to the expected expansion. To ensure the continuity of the traffic lane, this spacing is most often provided with two combs facing each other and arranged so that the teeth of the combs are interleaved. Thus, when the bridge expands or contracts, the combs can move closer to or away from each other while ensuring the filling of the spacing and continuity of the traffic lane. Other forms of bridge expansion joints also exist.

Les barrières de sécurité qui longent les voies de circulations subissent également le phénomène de dilatation.Safety barriers along the traffic routes also undergo the phenomenon of expansion.

Or, ces barrières de sécurité, par définition, doivent pouvoir assurer la sécurité d'un véhicule accidenté en le retenant lors du choc, et ceci tout au long de la barrière.However, these safety barriers, by definition, must be able to ensure the safety of a damaged vehicle by retaining it during the impact, and this all along the barrier.

Un joint de dilatation de structure semblable à celle des joints du pont ne sont pas envisageable. En effet, une telle structure ne permettrait pas de transmettre l'effort tout au long de la barrière, de sorte que les véhicules accidentés risqueraient de traverser la barrière.An expansion joint of structure similar to that of the joints of the bridge is not possible. Indeed, such a structure would not transmit the effort throughout the barrier, so that the damaged vehicles could cross the barrier.

Ainsi, il est nécessaire à la fois de permettre la dilatation des éléments constitutifs de la barrière et, à la fois d'assurer la sécurité des véhicules en cas de choc contre la barrière.Thus, it is necessary both to allow the expansion of the constituent elements of the barrier and, at the same time to ensure the safety of the vehicles in the event of impact against the barrier.

Actuellement, il existe deux types de système de liaison de pièces de glissement d'une barrière de sécurité.Currently, there are two types of sliding part connection system of a safety barrier.

Le premier est illustré aux figures 1 a et 1b. En section courante (figure 1a), c'est-à-dire le long d'une voie de circulation ne comprenant pas de joint de dilatation, un manchon de liaison A est utilisé pour relier deux pièces de glissement B et B'. Le manchon A et les pièces de glissement comprennent des trous C permettant le passage de boulons traversant immobilisant fermement les pièces de glissement B et B' sur le manchon A. Ainsi, la continuité mécanique est assurée entre les pièces de glissement. Cet agencement permet le fonctionnement normal de la barrière en cas de choc, c'est-à-dire que le manchon transmet l'effort mécanique entre la pièce B et la pièce B', ce qui permet à la barrière d'absorber le choc et de retenir le véhicule.The first is illustrated in figures 1 a and 1b. In current section ( figure 1a ), that is to say along a traffic lane not including an expansion joint, a connecting sleeve A is used to connect two sliding parts B and B '. The sleeve A and the sliding parts comprise holes C allowing the passage of through bolts firmly immobilizing the sliding parts B and B 'on the sleeve A. Thus, the mechanical continuity is ensured between the sliding parts. This arrangement allows the normal operation of the barrier in case of shock, that is to say that the sleeve transmits the mechanical force between the part B and the part B ', which allows the barrier to absorb the shock and hold the vehicle.

Au droit du ou des joints de dilatation du pont (figure 1 b) le manchon de liaison utilisé D comprend des trous oblongs E de longueur calculée en fonction de la dilatation maximale prévue. Ce manchon D permet donc la liaison mécanique des pièces de glissement B et B', tout en permettant un éloignement et un rapprochement calibré.At the right of the expansion joint (s) of the bridge ( Figure 1 (b) the used connection sleeve D comprises oblong holes E of length calculated according to the maximum expansion envisaged. This sleeve D thus allows the mechanical connection of the sliding parts B and B ', while allowing a distance and a calibrated approach.

Ce système autorise les déplacements liés à la dilatation tout en garantissant la tenue de la barrière en cas de choc.This system allows movement related to expansion while ensuring the holding of the barrier in case of impact.

Ce type de montage fonctionne bien tant que la dilatation est limitée. On peut estimer que ce type de solution est insuffisant pour des souffles (distance entre la position en contraction maximale et la position en dilatation maximale) supérieurs à 10cm.This type of assembly works well as long as expansion is limited. It can be considered that this type of solution is insufficient for breaths (distance between the position in maximum contraction and the position in maximum expansion) greater than 10cm.

Le risque est qu'en cas d'accident contre la barrière les deux éléments de glissement vont s'éloigner l'un de l'autre sous l'effet du choc. Ce déplacement sera très rapide contrairement à celui de la dilatation et ne se fait que dans un sens (éloignement des deux éléments de glissement). Deux phénomènes peuvent se produire :

  • les boulons verticaux cassent (à cause du cumul vitesse et effort) et le véhicule tombe du pont
  • la barrière se déforme trop (largeur de fonctionnement trop grande) et le véhicule tombe du pont.
The risk is that in case of an accident against the barrier the two sliding elements will move away from each other under the effect of the shock. This displacement will be very fast unlike that of the expansion and is only in one direction (removal of the two sliding elements). Two phenomena can occur:
  • the vertical bolts break (because of the combination of speed and effort) and the vehicle falls off the bridge
  • the barrier is deformed too much (operating width too large) and the vehicle falls off the bridge.

En outre, la barrière peut ne pas absorber suffisamment rapidement le choc du véhicule ce qui peut engendrer des dommages très importants. En effet, l'absorption du choc et la retenue ne débute que lorsque les éléments B et B' se sont suffisamment éloignés pour que les boulons butent aux extrémités des trous E.In addition, the barrier may not absorb the shock of the vehicle quickly enough which can cause very significant damage. In fact, the absorption of the shock and the restraint only starts when the elements B and B 'are sufficiently far apart for the bolts to abut at the ends of the holes E.

Un second système existe pour résoudre ce problème sur les ponts où la dilatation est importante (par exemple 60 cm). Ce produit est décrit dans le document EP 0 687 774 .A second system exists to solve this problem on bridges where the expansion is important (for example 60 cm). This product is described in the document EP 0 687 774 .

Outre son coût très élevé, il est nécessaire de le dimensionner sur mesure en usine, en fonction de chaque barrière à équiper, en adaptant, notamment, la course autorisant l'écartement des lisses de la barrière.In addition to its very high cost, it is necessary to tailor it to the factory, according to each barrier to be equipped, adapting, in particular, the race allowing the spacing of the rails of the barrier.

Ce dispositif nécessite, en outre, un montage par une équipe de spécialistes qui doivent, in fine, effectuer les derniers réglages en fonction des réalités du terrain.This device also requires assembly by a team of specialists who must, in fine, make the final adjustments according to the realities of the field.

En outre, il a été constaté qu'en pratique ce dispositif pouvait se bloquer, probablement du fait de la complexité du dispositif et de la multitude de pièces le composant. Cette absence de fiabilité engendre des coûts d'entretien importants, à la fois pour changer le dispositif bloqué et pour changer les lisses déformées par la dilatation.In addition, it has been found that in practice this device could hang, probably because of the complexity of the device and the multitude of parts composing it. This lack of reliability generates significant maintenance costs, both for changing the locked device and for changing the deformed rails by expansion.

L'invention vise donc à proposer un système de liaison de pièces de glissement d'une barrière de sécurité pour voies de circulation pouvant être adapté à toute dilatation, y compris une dilatation importante supérieure à 10 cm, d'entretien économique, pouvant être adapté au type de barrière pour permettre de retenir des véhicules de petits (voitures) et/ou de gros gabarits (bus ou camions), permettant une fabrication et une installation facile et ce, dans un encombrement général limité.The object of the invention is therefore to propose a system for connecting the sliding parts of a safety barrier for traffic lanes that can be adapted to any expansion, including a significant expansion greater than 10 cm, of economic maintenance that can be adapted the type of barrier to allow retaining small vehicles (cars) and / or large jigs (buses or trucks), allowing easy manufacture and installation and in a limited overall size.

A cette fin, l'invention a pour objet un système de liaison de pièces de glissement d'une barrière de sécurité pour voies de circulation disposées dans le prolongement l'une de l'autre en position d'utilisation, afin de maintenir la continuité entre les deux pièces tout en autorisant un mouvement d'écartement et de rapprochement relatif des deux pièces selon une direction de mouvement, dans lequel le système comprend :

  • au moins une barre dite « de guidage » destinée à être ancrée à l'une des deux pièces, et munie sur une partie de sa longueur d'une lumière oblongue ;
  • au moins une barre dite « de blocage », destinée à être ancrée à l'autre des deux pièces, munie d'au moins une goupille destinée à être insérée dans la lumière oblongue de la barre de guidage ;
et dans lequel la lumière oblongue comprend, en référence à la direction de la force de gravitation :
  • une surface de guidage inférieure comprenant au moins un cran constitué par deux rampes inclinées opposées permettant un guidage aller et retour dans la direction de mouvement de la goupille lorsque celle-ci repose sur la surface de guidage inférieure par gravité, de telle sorte qu'en cas d'écartement et de rapprochement lents entre la barre de guidage et la barre de blocage, la goupille repose sur la surface de guidage inférieure par gravité et est guidée lentement et librement par les crans de la surface inférieure ;
  • une surface de guidage supérieure comprenant des crans d'arrêt agencés en quinconce par rapport aux crans de la surface inférieure, de telle sorte qu'en cas de d'écartement rapide entre la barre de guidage et la barre de blocage, la goupille est guidée par les crans de la surface inférieure de guidage vers les crans d'arrêt de la surface supérieure et s'enclenche dans ces crans d'arrêt pour bloquer l'écartement des barres.
To this end, the subject of the invention is a system for connecting sliding parts of a safety barrier for traffic lanes disposed in the extension of one another in the use position, to maintain continuity between the two parts while allowing a movement of spacing and relative approximation of the two parts in a direction of movement, wherein the system includes:
  • at least one so-called "guide" bar intended to be anchored to one of the two parts, and provided over a portion of its length with an oblong slot;
  • at least one bar called "blocking", intended to be anchored to the other of the two parts, provided with at least one pin to be inserted into the oblong slot of the guide bar;
and wherein the oblong light comprises, with reference to the direction of the gravitational force:
  • a lower guide surface comprising at least one notch consisting of two opposite inclined ramps allowing forward and return guidance in the direction of movement of the pin when it is resting on the lower guide surface by gravity, so that when the guide bar and the locking bar are moved slowly apart and close together, the pin rests on the lower guide surface by gravity and is guided slowly and freely by the notches of the lower surface;
  • an upper guide surface comprising staggered staggered notches relative to the notches of the lower surface, so that in case of rapid spacing between the guide bar and the locking bar, the pin is guided by the notches of the lower guide surface towards the notches of the upper surface and engages in these detents to block the spacing of the bars.

Selon d'autres modes de réalisations :

  • ledit au moins un cran de la surface inférieure de guidage peut être symétrique ;
  • les crans d'arrêt peuvent comprendre une surface de blocage au plus perpendiculaire à la direction de mouvement ;
  • les crans d'arrêt peuvent comprendre, en outre, une surface de butée, de telle sorte que la goupille est bloquée au moins temporairement dans le cran d'arrêt ;
  • les crans d'arrêt peuvent être dissymétriques ou symétriques ;
  • le système de liaison peut comprendre deux barres de guidage agencées de manière parallèle, et une barre de blocage agencée entre les deux barres de guidage ;
  • le système de liaison peut comprendre, en outre, un capot ayant un profil semblable à celui des pièces de glissement de la barrière sur lequel il est destiné à être monté ;
According to other embodiments:
  • said at least one notch of the lower guide surface may be symmetrical;
  • the detents may comprise a blocking surface at most perpendicular to the direction of movement;
  • the detents may further comprise an abutment surface, such that the pin is at least temporarily locked in the detent;
  • the detents can be asymmetrical or symmetrical;
  • the connecting system may comprise two guide bars arranged in parallel, and a locking bar arranged between the two guide bars;
  • the connection system may further comprise a hood having a profile similar to that of the sliding parts of the barrier on which it is intended to be mounted;

L'invention propose également une barrière de sécurité pour voies de circulation comprenant deux pièces de glissement disposées dans le prolongement l'une de l'autre en position d'utilisation, caractérisée en ce qu'elle comprend un système de liaison précédent entre les deux pièces de glissement afin de maintenir la continuité entre les deux pièces tout en autorisant un mouvement d'écartement et de rapprochement relatif des deux pièces.The invention also proposes a safety barrier for traffic lanes comprising two sliding parts arranged in the extension of one another in the position of use, characterized in that it comprises a preceding connection system between the two sliding parts to maintain continuity between the two parts while allowing a movement of spacing and relative approximation of the two parts.

D'autres caractéristiques de l'invention seront énoncées dans la description détaillée ci-après faite en référence aux figures annexées qui représentent, respectivement :

  • les figures 1 a et 1 b, des vues schématiques en perspective d'un système de liaison de pièces de glissement d'une barrière de sécurité selon l'état de la technique ;
  • la figure 2, une vue schématique en perspective d'un premier mode de réalisation d'une barre de guidage selon l'invention ;
  • la figure 3, une vue schématique en perspective d'un premier mode de réalisation d'une barre de blocage selon l'invention ;
  • la figure 4, une vue schématique en perspective du montage fonctionnel de la barre de guidage de la figure 2 et de la barre de blocage de la figure 3 pour constituer un système de liaison de pièces de glissement d'une barrière de sécurité selon l'invention ;
  • les figures 5A à 5D, des vues schématiques en plan du fonctionnement du système de liaison de pièces de glissement d'une barrière de sécurité selon l'invention pour un déplacement relatif lent (dilatation) des pièces de glissement ;
  • les figures 6A à 6D, des vues schématiques en plan du fonctionnement du système de liaison de pièces de glissement d'une barrière de sécurité selon l'invention pour un déplacement relatif rapide (choc) des pièces de glissement ;
  • les figures 7 à 11, des vues schématiques en plan de quatre variantes de réalisation d'une barre de guidage selon l'invention ;
  • la figure 12, une vue schématique en perspective d'un deuxième mode de réalisation d'une barre de guidage selon l'invention ;
  • la figure 13, une vue schématique en perspective d'un deuxième mode de réalisation d'une barre de blocage selon l'invention ;
  • la figure 14, une vue schématique en perspective du montage fonctionnel de la barre de guidage de la figure 12 et de la barre de blocage de la figure 13 pour constituer un système de liaison de pièces de glissement d'une barrière de sécurité selon l'invention ;
  • la figure 15, une vue schématique en perspective d'un troisième mode de réalisation d'une barre de blocage selon l'invention ;
  • la figure 16, une vue schématique en perspective du montage fonctionnel de la barre de guidage de la figure 12 et de la barre de blocage de la figure 15 pour constituer un système de liaison de pièces de glissement d'une barrière de sécurité selon l'invention ; et
  • les figures 17 et 18, des vues schématiques en perspective d'un quatrième mode de réalisation d'une barre de blocage selon l'invention.
Other characteristics of the invention will be set forth in the following detailed description with reference to the appended figures which represent, respectively:
  • the figures 1 a and 1b are diagrammatic perspective views of a system for connecting sliding parts of a safety barrier according to the state of the art;
  • the figure 2 , a schematic perspective view of a first embodiment of a guide bar according to the invention;
  • the figure 3 , a schematic perspective view of a first embodiment of a locking bar according to the invention;
  • the figure 4 , a schematic perspective view of the functional assembly of the guide bar of the figure 2 and the blocking bar of the figure 3 to constitute a system for connecting sliding parts of a safety barrier according to the invention;
  • the Figures 5A to 5D plan diagrammatic views of the operation of the connection system of sliding parts of a safety barrier according to the invention for a slow relative displacement (expansion) of the sliding parts;
  • the Figures 6A to 6D schematic plan views of the operation of the sliding part connecting system of a safety barrier according to the invention for a rapid relative displacement (shock) of the sliding parts;
  • the Figures 7 to 11 schematic plan views of four embodiments of a guide bar according to the invention;
  • the figure 12 , a schematic perspective view of a second embodiment of a guide bar according to the invention;
  • the figure 13 , a schematic perspective view of a second embodiment of a locking bar according to the invention;
  • the figure 14 , a schematic perspective view of the functional assembly of the guide bar of the figure 12 and the blocking bar of the figure 13 to constitute a system for connecting sliding parts of a safety barrier according to the invention;
  • the figure 15 , a schematic perspective view of a third embodiment of a locking bar according to the invention;
  • the figure 16 , a schematic perspective view of the functional assembly of the guide bar of the figure 12 and the blocking bar of the figure 15 to constitute a system for connecting sliding parts of a safety barrier according to the invention; and
  • the Figures 17 and 18 , schematic perspective views of a fourth embodiment of a locking bar according to the invention.

Les termes de la famille « supérieur » et « inférieure » doivent être compris par rapport à la direction G de la force de gravitation dans la position opérationnelle de la barrière de sécurité, c'est-à-dire lorsqu'elle est placée le long d'une voie de circulation, prête à être utilisée. Les termes des familles « transversal » ou « longitudinal » doivent être compris, respectivement, comme « perpendiculaire » ou « parallèle » au sens de circulation des véhicules lorsque la barrière est en position opérationnelle.The terms "upper" and "lower" family must be understood in relation to the direction G of the gravitational force in the operational position of the safety barrier, that is, when it is placed along a traffic lane, ready for use. The terms "transverse" or "longitudinal" families must be understood, respectively, as "perpendicular" or "parallel" to the direction of movement of the vehicles when the barrier is in operational position.

L'invention propose un système de liaison de pièces de glissement d'une barrière de sécurité dont le fonctionnement diffère selon la vitesse du mouvement relatif entre les pièces de glissement. Ainsi, il permet un éloignement et un rapprochement libre des pièces dans le cas d'un mouvement lent, mais empêche tout éloignement des pièces dans le cas d'un mouvement relatif rapide, de sorte que ces dernières retiennent le véhicule accidenté.The invention proposes a system for connecting sliding parts of a safety barrier whose operation differs according to the speed of the relative movement between the sliding parts. Thus, it allows a distance and a free approximation of the parts in the case of a slow movement, but prevents any removal of the parts in the case of rapid relative movement, so that the latter retain the accident vehicle.

On entend par mouvement lent, un mouvement généré par la contraction/dilatation. Cette catégorie de mouvement n'excède généralement pas un mètre par heure.Slow movement is understood to mean a movement generated by contraction / dilation. This category of movement usually does not exceed one meter per hour.

Au contraire, un mouvement rapide est un mouvement généré par un choc. Cette catégorie de mouvement excède généralement le kilomètre par heure, soit au moins mille fois plus rapide que le mouvement de dilatation. Par exemple, pour le choc d'une voiture à 50 km/heure, le mouvement est cinquante mille fois plus rapide que la dilatation.On the contrary, a fast movement is a movement generated by a shock. This movement category typically exceeds one kilometer per hour, at least a thousand times faster than the expansion movement. For example, for the shock of a car at 50 km / h, the movement is fifty thousand times faster than the dilation.

Le système comprend au moins deux barres 10-20, une 10 dite « de guidage », l'autre 20 dite « de blocage », montées de manière parallèle l'une par rapport à l'autre et par rapport aux pièces de glissement de la barrière. Chaque type de barre 10-20 est solidaire d'une partie de fixation 30 munie de percements 40 servant à la fixation sur l'extrémité des pièces de glissement de la barrière (non illustrés). Sur la figure 2, cette partie de fixation 30 est orientée perpendiculairement par rapport aux barres 10 et 20, de sorte que les percements 40 présentent une orientation perpendiculaire par rapport aux barres 10 et 20 permettant une fixation par le dessus et/ou par le dessous des barres en conditions normales d'utilisation.The system comprises at least two bars 10-20, one so-called "guide", the other 20 so-called "blocking", mounted parallel to each other and relative to the sliding parts of the barrier. Each type of bar 10-20 is integral with a fixing portion 30 provided with holes 40 for fixing on the end of the sliding parts of the barrier (not shown). On the figure 2 , this fixing portion 30 is oriented perpendicular to the bars 10 and 20, so that the holes 40 have a perpendicular orientation relative to the bars 10 and 20 for fixing from above and / or below the bars in conditions normal use.

Comme illustré en figure 2, la barre de guidage 10, destinée à être ancrée à l'une des deux pièces de glissement (non illustré), est munie sur une partie L1 de sa longueur L d'une lumière oblongue 11.As illustrated in figure 2 , the guide bar 10, intended to be anchored to one of the two sliding parts (not shown), is provided on a portion L1 of its length L with an oblong slot 11.

La longueur L1 est définie en fonction du déplacement relatif maximal calculé du à la dilatation/contraction.The length L1 is defined according to the maximum relative displacement calculated due to the expansion / contraction.

Comme illustré en figure 3, la barre de blocage 20, destinée à être ancrée à l'autre des deux pièces de glissement (non illustré), est munie d'au moins une goupille 21 destinée à être insérée dans la lumière oblongue11 de la barre de guidage 10 (voir figure 4).As illustrated in figure 3 , the locking bar 20, intended to be anchored to the other of the two sliding parts (not shown), is provided with at least one pin 21 intended to be inserted in the oblong slot 11 of the guide bar 10 (see FIG. figure 4 ).

Selon l'invention, la lumière oblongue 11 comprend :

  • une surface de guidage inférieure 12 comprenant au moins un cran 14 constitué par deux rampes 16-18 inclinées opposées, de préférence symétriques (les crans sont dits alors « symétriques ») permettant un guidage aller et retour dans la direction de mouvement M de la goupille 21 lorsque celle-ci repose sur la surface de guidage inférieure 12 par gravité.
  • une surface de guidage supérieure 13 comprenant des crans d'arrêt 15 agencés en quinconce par rapport aux crans 14 de la surface inférieure 12.
According to the invention, the oblong slot 11 comprises:
  • a lower guide surface 12 comprising at least one notch 14 constituted by two opposite inclined ramps 16-18, preferably symmetrical (the notches are then called "symmetrical") allowing forward and return guidance in the direction of movement M of the pin 21 when it rests on the lower guide surface 12 by gravity.
  • an upper guide surface 13 comprising stopping notches 15 arranged staggered with respect to the notches 14 of the lower surface 12.

L'expression « en quinconce » signifie que les crans d'arrêt 15 s'étendent dans la lumière oblongue 11 entre les crans symétriques 14 tout en laissant le libre passage pour la goupille 21 le long de la surface de guidage inférieure 12. Cela ne signifie par nécessairement qu'un cran d'arrêt 15 soit à égale distance entre deux crans symétriques 14.The expression "staggered" means that the detents 15 extend in the oblong slot 11 between the symmetrical notches 14 while leaving the free passage for the pin 21 along the lower guide surface 12. necessarily means that a catch 15 is equidistant between two symmetrical notches 14.

Comme le montrent les figures 5 et 6, cette structure dissymétrique de la lumière oblongue permet un déplacement relatif aller-retour des pièces de glissement de la barrière de sécurité lors d'un mouvement lent, et un blocage du mouvement relatif lors d'un choc contre la barrière (écartement rapide des pièces de glissement).As shown by Figures 5 and 6 , this asymmetrical structure of the oblong slot allows a relative displacement back and forth of the sliding parts of the safety barrier during a slow movement, and a blocking of the relative movement during an impact against the barrier (fast spacing of the parts slip).

Les figures 5A à 5D illustrent le cas d'un mouvement relatif lent dans la direction de mouvement M.The Figures 5A to 5D illustrate the case of a slow relative movement in the movement direction M.

Tant que le mouvement est lent, les goupilles 21 reposent sur la surface de guidage inférieure 12 par gravité et sont guidées lentement et librement (c'est-à-dire sans blocage). En figure 5A, les goupilles sont situées initialement entre deux crans symétriques 14 et en appui sur la surface de guidage inférieure 12. En figure 5B, le mouvement lent pousse les goupilles 21 le long des crans, sur la rampe 16. En figure 5C, le mouvement lent se poursuit, et les goupilles 21 glissent le long de la rampe 18 des crans 14. En figure 5D, les goupilles se trouvent entre les deux crans 14 suivants.As long as the movement is slow, the pins 21 rest on the lower guide surface 12 by gravity and are guided slowly and freely (i.e. without locking). In Figure 5A , the pins are located initially between two symmetrical notches 14 and resting on the lower guide surface 12. Figure 5B , the slow movement pushes the pins 21 along the notches, on the ramp 16. In Figure 5C , the slow movement continues, and the pins 21 slide along the ramp 18 notches 14. In figure 5D , the pins are between the two notches 14 following.

Lors du mouvement inverse (non illustré), les goupilles glissent le long de la surface inférieure de guidage 12, le long des rampes 18 puis le long des rampes 16. Il est avantageux que les crans 14 soient symétriques, c'est-à-dire que les rampes présentent un angle identique par rapport à l'horizontale, afin d'assurer un mouvement retour identique au mouvement aller. Néanmoins, dans le but de réduire la distance d'écartement avant blocage, les rampes 16 et 18 peuvent être dissymétriques, du moment qu'elles permettent un coulissement sans blocage de la ou des goupilles 21 le long de la surface inférieure de guidage 12, c'est-à-dire qu'elles forment un angle α obtus strictement supérieur à 90° avec la surface située entre les crans 14.During the reverse movement (not shown), the pins slide along the lower guide surface 12, along the ramps 18 and along the ramps 16. It is advantageous that the notches 14 are symmetrical, that is to say say that the ramps have an identical angle with respect to the horizontal, to ensure a return movement identical to the forward movement. Nevertheless, in order to reduce the spacing distance before locking, the ramps 16 and 18 can be asymmetrical, provided that they allow a sliding without locking of the pin or pins 21 along the lower guide surface 12, that is to say, they form an angle α obtus strictly greater than 90 ° with the surface located between the notches 14.

Les figures 6A à 6D illustrent le cas d'un mouvement d'écartement rapide des deux barres 10 et 20. En figure 6A, les goupilles sont situées initialement entre deux crans symétriques 14 et en appui sur la surface de guidage inférieure 12. En figure 6B, le mouvement guide les goupilles le long des rampes 16 des crans 14. Le mouvement étant brusque et rapide, les goupilles 21 sont projetées par les rampes 16 vers la surface de guidage supérieure 13 avant que la force de gravité n'attire les goupilles vers la surface inférieure 12 (figure 6C). Les goupilles sont alors guidées vers les crans d'arrêt 15 de la surface supérieure et s'enclenchent dans ces crans d'arrêt 15 pour bloquer l'écartement des barres 10 et 20.The Figures 6A to 6D illustrate the case of a rapid movement of the two bars 10 and 20. Figure 6A , the pins are located initially between two symmetrical notches 14 and resting on the lower guide surface 12. Figure 6B , the movement guides the pins along the ramps 16 of the notches 14. The movement being abrupt and rapid, the pins 21 are projected by the ramps 16 to the upper guide surface 13 before the gravitational force attracts the pins towards the bottom surface 12 (Figure 6C) . The pins are then guided towards the detents 15 of the upper surface and engage in these detents 15 to block the spacing of the bars 10 and 20.

Les figures 7 à 11 illustrent des variantes de réalisation, principalement concernant la forme des crans d'arrêt 15.The Figures 7 to 11 illustrate alternative embodiments, mainly concerning the shape of the detents 15.

Les crans d'arrêt 15 comprennent une surface de guidage 17 et une surface d'arrêt 19 au plus perpendiculaire à la direction de mouvement M, de sorte que lorsque la goupille est guidée vers cette face 19, le mouvement relatif des deux barres 10 et 20 s'arrête. « Au plus » perpendiculaire signifie que la surface d'arrêt 19 forme un angle β inférieur ou égal à 90° avec l'horizontal et dans le sens de l'écartement des deux barres. Sur la figure 7, les surfaces d'arrêt 19 sont perpendiculaires.The detents 15 comprise a guide surface 17 and a stop surface 19 at most perpendicular to the direction of movement M, so that when the pin is guided towards this face 19, the relative movement of the two bars 10 and 20 stops. "At most" perpendicular means that the stop surface 19 forms an angle β less than or equal to 90 ° with the horizontal and in the direction of the spacing of the two bars. On the figure 7 the stop surfaces 19 are perpendicular.

Avantageusement, la surface d'arrêt 19 des crans d'arrêt 15 comprend, en outre, une surface de butée 19a, de telle sorte que la goupille est bloquée au moins temporairement dans le cran d'arrêt.Advantageously, the stop surface 19 of the detents 15 further comprises an abutment surface 19a, so that the pin is locked at least temporarily in the detent.

Alternativement, comme illustré aux figures 8 et 9, la surface d'arrêt 19 fait un angle β aigu avec l'horizontal et dans le sens de l'écartement des deux barres. Ainsi, la goupille est non seulement arrêtée mais également bloquée pour éviter qu'elle ne retombe trop rapidement sur la surface inférieure de guidage 12. La surface d'arrêt 19 peut être plane ou courbe, du moment qu'au moins une des tangentes à la courbe forme un angle de 90° par rapport à l'horizontale.Alternatively, as illustrated in Figures 8 and 9 , the stop surface 19 makes an acute angle β with the horizontal and in the direction of the spacing of the two bars. Thus, the pin is not only stopped but also blocked to prevent it falling too quickly on the lower guide surface 12. The stop surface 19 can be flat or curved, as long as at least one of the tangents to the curve forms an angle of 90 ° to the horizontal.

Les figures 5 à 9 illustrent des variantes dans lesquelles les crans d'arrêt 15 sont dissymétriques. Cela signifie que ces variantes présentent un sens de montage afin de s'assurer qu'un écartement rapide soit bloqué.The Figures 5 to 9 illustrate variants in which the detents 15 are asymmetrical. This means that these variants have a mounting direction to ensure that a fast gap is blocked.

Alternativement, comme illustré aux figures 10 et 11, il est envisageable de prévoir des crans d'arrêts symétriques. Sur la figure 10, ils ont une surface d'arrêt 19 perpendiculaire à l'horizontale, mais sur la figure 11, les surfaces d'arrêt 19 forment des angles β1, β2 inférieur à 90° avec l'horizontal.Alternatively, as illustrated in Figures 10 and 11 it is conceivable to provide symmetrical stop notches. On the figure 10 , they have a stop surface 19 perpendicular to the horizontal, but on the figure 11 , the stop surfaces 19 form angles β1, β2 less than 90 ° with the horizontal.

Le fait que les crans d'arrêt soient symétriques facilite l'installation du système selon l'invention puisqu'il n'a plus de sens de montage. Il peut être installé dans n'importe quel sens.The fact that the stops are symmetrical facilitates the installation of the system according to the invention since it no longer has a mounting direction. It can be installed in any direction.

Le système de liaison selon l'invention peut comprendre plusieurs barres de guidage et/ou de blocage.The connection system according to the invention may comprise several guide bars and / or blocking bars.

Dans l'exemple de réalisation illustré en figure 12, le système comprend deux barres de guidage 10 parallèles. Elles sont solidaires l'une de l'autre par une partie de fixation 30 identique au mode de réalisation de la figure 2.In the exemplary embodiment illustrated in figure 12 , the system comprises two parallel guide bars 10. They are secured to one another by a fastening portion 30 identical to the embodiment of the figure 2 .

La figure 13 illustre une première variante de barre de blocage 20 pouvant être utilisée en combinaison avec les barres de guidage de la figure 12. Cette barre de blocage 20 comprend une goupille 22 s'étendant de part et d'autre de la barre de blocage pour s'engager dans chaque lumière oblongue des barres de guidage 10. L'ensemble est illustré en figure 14, ou la barre de blocage 20 est insérée entre les barre de guidage 10. Puis la goupille est bloquée dans la barre de blocage 20 de manière à être engagée dans chaque lumière oblongue des barres de guidage 10, de part et d'autre de la barre de blocage 10.The figure 13 illustrates a first variant of a locking bar 20 which can be used in combination with the guide bars of the figure 12 . This locking bar 20 comprises a pin 22 extending on either side of the locking bar for engaging in each oblong slot of the guide bars 10. The assembly is illustrated in FIG. figure 14 , or the locking bar 20 is inserted between the guide bars 10. Then the pin is locked in the locking bar 20 so as to be engaged in each oblong slot guide bars 10, on both sides of the blocking bar 10.

La figure 15 illustre une deuxième variante pouvant être utilisée en combinaison avec les barres de guidage de la figure 12, comprenant deux barres de blocage 20 solidaires l'une de l'autre par une partie de fixation 30 identique au mode de réalisation de la figure 3. Ces barres de blocage comprennent une goupille commune 23 destinée à s'engager dans les lumières oblongues des barres de guidage 10. En position opérationnelle, les barres guidage 10 et les barres de blocage 20 sont alternées de manière parallèle et la goupille 23 est bloquée dans les barres de blocage 20 de manière à être engagée dans chaque lumière oblongue des barres de guidage 10, de part et d'autre des barres de blocage 10.The figure 15 illustrates a second variant that can be used in combination with the guide bars of the figure 12 , comprising two locking bars 20 secured to one another by a fixing portion 30 identical to the embodiment of the figure 3 . These locking bars comprise a common pin 23 intended to engage in the oblong slots of the guide bars 10. In the operative position, the guide bars 10 and the locking bars 20 are alternated in parallel fashion and the pin 23 is locked in the locking bars 20 so as to be engaged in each oblong slot of the guide bars 10, on either side of the locking bars 10.

La multiplication des barres de guidage 10 et de blocage 20 augmente la rigidité du système de liaison selon l'invention, et donc sa résistance au choc.The multiplication of guide bars 10 and blocking 20 increases the rigidity of the connection system according to the invention, and therefore its impact resistance.

L'adaptation du système en fonction de la résistance souhaitée est donc très facile.Adapting the system according to the desired resistance is therefore very easy.

Comme illustré aux figures 17 et 18, le système de liaison selon l'invention peut également comprendre une ou plusieurs goupilles 24, afin d'assurer un mouvement relatif parfaitement parallèle des barres 10-20. Cela permet également d'assurer le blocage en cas de rupture de l'une des goupilles. La goupille peut avoir différentes sections (ronde, carrée, triangulaire ...).As illustrated in Figures 17 and 18 , the connecting system according to the invention may also comprise one or more pins 24, to ensure a perfectly parallel relative movement of the bars 10-20. This also ensures the blockage in case of breakage of one of the pins. The pin can have different sections (round, square, triangular ...).

La partie de fixation des barres aux éléments de glissement de la barrière peut être différente de celle 30 qui est représentée aux figures 2 à 4 et 12 à 16, sans pour autant sortir du champ de l'invention. Sur les figures 17 et 18, la partie de fixation 50 est agencée dans le prolongement des barres et parallèlement à cas barres, de sorte que les percements 51 et des moyens de fixation (des boulons sur les figures 1) 52 permettent une fixation latérale, en conditions normales d'utilisation, des barres 10-20 aux pièces de glissement de la barrière de sécurité.The securing part of the bars to the sliding elements of the barrier may be different from that which is shown in FIGS. Figures 2 to 4 and 12 to 16 without departing from the scope of the invention. On the Figures 17 and 18 , the fastening portion 50 is arranged in the extension of the bars and parallel to bar cases, so that the holes 51 and fastening means (bolts on the figures 1 ) 52 allow lateral attachment, under normal conditions of use, bars 10-20 to the sliding parts of the safety barrier.

Comme illustré aux figures 17 et 18, il est également possible d'ajouter au système de liaison selon l'invention, un capot ou à un manchon de liaison 60 pour assurer la continuité de la forme de l'élément de glissement. Alternativement, le système de liaison peut être fixé à deux éléments de glissement se chevauchant suffisamment pour assurer la continuité de la barrière en cas de dilatation.As illustrated in Figures 17 and 18 it is also possible to add to the connecting system according to the invention, a cover or a connecting sleeve 60 to ensure the continuity of the shape of the sliding element. Alternatively, the connection system can be fixed to two sliding elements overlapping sufficiently to ensure the continuity of the barrier in case of expansion.

L'installation du système selon l'invention est très facile, puisqu'il suffit de fixer les barres de guidage et de blocage aux extrémités des pièces de glissement de la barrière de manière à ce que les barres puissent s'écarter et se rapprocher l'une de l'autre. Il n'est pas nécessaire de réaliser un réglage fin. Le calcul de la dilatation maximale donne une position relative des barres de guidage et de blocage (position de la goupille dans les crans). Une fois cette position relative établie, il suffit de fixer les barres dans cette position.The installation of the system according to the invention is very easy, since it suffices to fix the guide and locking bars at the ends of the sliding parts of the barrier so that the bars can move away and come closer to each other. one of the other. It is not necessary to make a fine adjustment. The calculation of the maximum expansion gives a relative position of the guide and locking bars (position of the pin in the notches). Once this relative position is established, it is sufficient to fix the bars in this position.

Il est également possible d'utiliser le système selon l'invention sur une barrière de section courante (hors ouvrage). La route et la barrière ayant des coefficients de dilatation différents.It is also possible to use the system according to the invention on a barrier of current section (out of work). The road and the barrier having different coefficients of expansion.

Claims (9)

  1. System for linking sliding parts of a road safety barrier arranged as a continuation of one another in a use position, in order to maintain continuity between the two parts while allowing the two parts to be moved apart and towards one another in a direction of movement (M), characterised in that the system comprises:
    - at least one bar (10), called a "guide" bar, which is to be secured to one of the two parts and is equipped over a portion (L1) of its length (L) with an oblong opening (11);
    - at least one bar (20), called a "blocking" bar, which is to be secured to the other of the two parts and is equipped with at least one pin (21, 22, 23) which is to be inserted into the oblong opening (11) of the guide bar (10);
    and in that the oblong opening (11) comprises, with reference to the direction (G) of gravitational force:
    - a lower guide surface (12) comprising at least one notch (14) formed by two opposite inclined slopes (16-18) allowing a guiding to and fro in the direction of movement of the pin (21,22,23) when the latter is resting by gravity on the lower guide surface (12), so that, when the guide bar (10) and the blocking bar (20) are slowly moved apart and towards one another, the pin (21, 22, 23) rests on the lower guide surface (12) by gravity and is guided slowly and freely by the notches (14) of the lower surface (12);
    - an upper guide surface (13) comprising stop notches (15) which are staggered with respect to the notches (14) of the lower surface (12) so that, when the guide bar (10) and the blocking bar (12) are moved apart quickly, the pin (21, 22, 23) is guided by the notches (14) of the lower guide surface (12) towards the stop notches (15) of the upper guide surface (13) and engages in the stop notches in order to prevent the bars from moving apart.
  2. Linking system according to claim 1, wherein said at least one notch (14) of the lower guide surface is symmetrical.
  3. Linking system according to either claim 1 or claim 2, wherein the stop notches (15) comprise a blocking surface (19) which is at most perpendicular to the direction of movement (M).
  4. Linking system according to claim 3, wherein the stop notches (15) further comprise an abutment surface (19a), so that the pin is blocked at least temporarily in the stop notch.
  5. Linking system according to any one of claims 1 to 4, wherein the stop notches (15) are asymmetrical.
  6. Linking system according to any one of claims 1 to 4, wherein the stop notches (15) are symmetrical.
  7. Linking system according to any one of claims 1 to 6, comprising two guide bars (10) arranged in parallel and a blocking bar (20) arranged between the two guide bars.
  8. Linking system according to any one of claims 1 to 7, further comprising a cover which has a profile similar to that of the sliding parts of the barrier on which it is to be mounted.
  9. Road safety barrier, comprising two sliding parts arranged as a continuation of one another in a use position, characterised in that it comprises a linking system according to any one of claims 1 to 8 between the two sliding parts in order to maintain continuity between the two parts while allowing the two parts to be moved apart and towards one another.
EP12193334.5A 2011-11-30 2012-11-20 System for linking sliding parts of a road safety barrier and safety barrier provided with such a system Active EP2599922B1 (en)

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FR1160952A FR2983218B1 (en) 2011-11-30 2011-11-30 SYSTEM FOR CONNECTING SECURITY BARRIER SLIDING PIECES FOR CIRCULATION PATHS AND SAFETY BARRIER EQUIPPED WITH SUCH A SYSTEM.

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EP2599922A1 EP2599922A1 (en) 2013-06-05
EP2599922B1 true EP2599922B1 (en) 2015-11-04

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* Cited by examiner, † Cited by third party
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AT344778B (en) * 1975-10-24 1978-08-10 Vmw Ranshofen Berndorf Ag EXPANSION JOINT CONNECTIONS FOR GUIDANCE DEVICES FOR GUIDE RAILS, RAILINGS, ETC.
JPH0452259Y2 (en) * 1985-07-23 1992-12-09
FR2702500B1 (en) * 1993-03-09 1995-06-02 Freyssinet Int & Co Improvements to devices for horizontally connecting safety rails or the like.
DE102006038336B3 (en) * 2006-08-15 2007-12-20 Spig Schutzplanken-Produktions-Gesellschaft Mbh & Co. Kg Protection plank arrangement for steel bridge construction, has C-shaped profile strands extending along center elevational area and upper end of anchoring profile, and protection plank strand extending before one of strands in area

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FR2983218A1 (en) 2013-05-31
EP2599922A1 (en) 2013-06-05
FR2983218B1 (en) 2014-01-24

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