EP2942435B1 - Chain barrier including means for actuating the chain comprising a carriage connected to linear motor means - Google Patents

Chain barrier including means for actuating the chain comprising a carriage connected to linear motor means Download PDF

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Publication number
EP2942435B1
EP2942435B1 EP15163818.6A EP15163818A EP2942435B1 EP 2942435 B1 EP2942435 B1 EP 2942435B1 EP 15163818 A EP15163818 A EP 15163818A EP 2942435 B1 EP2942435 B1 EP 2942435B1
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EP
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Prior art keywords
chain
carriage
rail
drive means
linear drive
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EP15163818.6A
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German (de)
French (fr)
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EP2942435A1 (en
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Yvan Posavec
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Protec Distribution
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Protec Distribution
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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
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/02—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions free-standing; portable, e.g. for guarding open manholes ; Portable signs or signals specially adapted for fitting to portable barriers
    • E01F13/028—Flexible barrier members, e.g. cords; Means for rendering same conspicuous; Adapted supports, e.g. with storage reel

Definitions

  • the field of the invention is that of the design and manufacture of systems allowing / prohibiting road vehicles access to a specific area.
  • the invention relates to the chain barriers, and in particular the barriers in which the chain extends between two end barrels, at least one barrel incorporating means for actuating the chain to move the one. between a position according to which it prohibits the passage of a land vehicle and a position in which it authorizes the passage of a vehicle between the two drums, as described in FR 2,506,359 A or DE 19 26 385 A .
  • the position of the chain prohibiting the passage may be a low position, for example at a height corresponding to a wheel height, or a high position in which the barrier is similar to a gantry.
  • Such chain barriers are conventionally used to ensure location reservations, for example to fund carriers, for parking, or property entries.
  • the chains may be of any material, but are generally made of steel so as to provide an anti-intrusion safety function.
  • the end drums conventionally have, for the chain barriers in which the chain occupies, in the position of obstruction, a height of between 50 cm and 1 m, a height of about 90 cm, or even 1 m, for a diameter of about thirty centimeters.
  • the actuating means housed in such drums must be able to move the chain to a height of about 80 cm, between a position in which the chain rests on the ground (or in a gutter formed in the ground and connecting the two barrels) and frees the passage and a position of obstruction.
  • the chain barriers may have chain lengths ranging from 10 to 35 meters. It is understood that with such chain lengths, made of steel, for example, the weight of the chain is relatively large.
  • the electric motor inside the barrel can experience temperature rises causing it to overheat, which can also lead to a deterioration of the motor to the point of make the barrier ineffective.
  • the invention particularly aims to overcome these disadvantages of the prior art.
  • the invention aims to provide a chain barrier, of the type comprising actuating means implementing a carriage mounted movably along a rail, with motor means allowing their use with large chains. lengths, possibly with intensive use.
  • the invention also aims to provide such a chain barrier that significantly reduces the travel time of the chain between its high position and its low position, and vice versa.
  • the invention also aims to provide such a chain barrier that allows to keep the drums in the dimensions of the order of those cited with reference to the prior art.
  • a chain barrier comprising two end barrels between which extends a main chain, at least one drums comprising actuating means coupled to one end of the main chain and being intended to move the main chain between a position in which it prohibits the passage of a land vehicle between the two drums and a position in which it authorizes the passing a vehicle between two barrels
  • the actuating means comprising at least one carriage movably mounted along a rail extending from base to top in the barrel, characterized in that the carriage is coupled to drive means comprising driving means linear lines capable of being deployed / retracted on a stroke D1 from bottom to top, or vice versa, in the barrel
  • the linear motor means being coupled to the carriage by a flexible transmission means extending between two ends, one of which is fixed to the barrel and the other fixed to the carriage, the linear motor means being able to act on the transmission means between the ends so that the stroke D1 linear motor means causes a stroke D2 of the carriage
  • the linear motor means will be operational in all circumstances with long chains (and in particular with any type of chain), this possibly at high rates of use, thus permitting an intensive use of the chain barrier.
  • transmission means can accommodate the linear motor means in conventional drums implemented with the prior art.
  • the linear motor means can be housed in barrels of traditional height of the order of 90 cm to 1 m.
  • the linear motor means are connected to the flexible transmission means so as to form a hafting.
  • a haulage designates the figure formed by two arms of a cable, for example, between drums, or fixed points or return pulleys, in the context of a traction and / or lifting system.
  • the linear motor means are constituted by a jack, and preferably by a hydraulic cylinder.
  • the jack advantageously has a piston whose end is a connecting end intended to cooperate with the transmission means, the connecting end and the transmission means having mutual meshing means.
  • the connecting end is provided with a pinion, the transmission means being constituted by a transmission chain.
  • the rail is inclined so that the main chain is more taut when the carriage is at the top of the rail at the bottom of the rail.
  • a chain barrier is generally installed on a concrete base 3 on which the barrels 1 are fixed, a channel 30 being formed between the barrels 1 so as to receive the main chain in the position B.
  • the chain in the low position is housed in the gutter, below the ground level, avoiding land vehicles to roll on the chain which could provide an unpleasant feeling to drivers and / or damage in terms of the vehicles brought to pass on the chain repeatedly.
  • At least one of the drums comprises actuating means coupled to one end of the main chain.
  • the barrel 1 is closed by a cap 10, removably attached to the barrel.
  • the drive means comprise linear motor means capable of being deployed / retracted on a stroke D1 from bottom to top, or vice versa, in the barrel.
  • linear motor means are coupled to the carriage 5 by a flexible transmission means 7 extending between two ends 70, 71, one end 70 is fixed to the barrel and the other end 71 is fixed to the carriage. Still according to the principle of the invention, the linear motor means 6 act on the transmission means 7 at a distance from said ends 70, 71 provided so that the stroke D1 linear motor means causes a stroke D2 of the carriage along the upper rail in the race D1, and preferably equal to twice the race D1.
  • the linear motor means may be constituted by a jack, and preferably by a hydraulic jack, comprising a body 60 and a piston 61.
  • the cylinder body extends vertically into the barrel. It rests and is fixed on the bottom 8 of the barrel.
  • the stroke D1 of the piston will allow a displacement of the carriage 5 on the height of the rail corresponding to about twice the stroke D1.
  • a cylinder whose body and the piston have about half the height of the rail is sufficient to move the carriage over the entire height of the rail by applying the principle of the invention.
  • the linear motor means are connected to the transmission means 7 so as to form a hafting.
  • the piston 61 has a connecting end 610 intended to cooperate with the transmission means 7, this connecting end being provided with a pinion 611, the transmission means 7 being constituted according to a preferred embodiment by a chain of transmission.
  • the teeth of the pinion 611 and the links of the transmission chain constitute the means of mutual engagement of the connecting end with the transmission means.
  • the transmission chain is coupled at one of its ends to the inside of the barrel 1 in the vicinity of the upper end of the body 60 of the jack, while the other end 71 of the transmission chain is coupled. in the upper part of the trolley.
  • the end 70 of the transmission chain constitutes the anchor point of the transmission chain with respect to which the other end 71 of the chain is moved under the effect of the displacement of the piston and the cylinder.
  • the connecting end of the piston is positioned near the fixed end 70 of the transmission chain, so approximately at the same height.
  • the transmission chain thus has a short side of the end 70, and a long side of the end 71.
  • the connecting end of the piston extends in the vicinity of the end 71 of the transmission chain, so approximately at the same height in the high position of the carriage on the rail end 71.
  • the transmission chain then has a short run on the side of the end 71, and a long run on the side of the end 70.
  • the rail 4 presents, as it is clear on the figure 2 , an inclination provided so that the chain 2 is more stretched when the carriage is at the top of the rail than when it is at the bottom of the rail.
  • the actuation means of the chain which have just been described are preferentially integrated with each of the barrels of the chain barrier.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmission Devices (AREA)

Description

Le domaine de l'invention est celui de la conception et de la fabrication des systèmes autorisant/interdisant à des véhicules routiers l'accès à une zone déterminée.The field of the invention is that of the design and manufacture of systems allowing / prohibiting road vehicles access to a specific area.

Plus précisément, l'invention concerne les barrières à chaîne, et en particulier les barrières dans lesquelles la chaîne s'étend entre deux fûts d'extrémité, l'un au moins des fûts intégrant des moyens d'actionnement de la chaîne pour déplacer celle-ci entre une position selon laquelle elle interdit le passage d'un véhicule terrestre et une position dans laquelle elle autorise le passage d'un véhicule entre les deux fûts, comme décrit dans FR 2 506 359 A ou DE 19 26 385 A .More specifically, the invention relates to the chain barriers, and in particular the barriers in which the chain extends between two end barrels, at least one barrel incorporating means for actuating the chain to move the one. between a position according to which it prohibits the passage of a land vehicle and a position in which it authorizes the passage of a vehicle between the two drums, as described in FR 2,506,359 A or DE 19 26 385 A .

On note que dans ces barrières à chaîne, la position de la chaîne interdisant le passage peut être une position basse, par exemple à une hauteur correspondant à une hauteur de roue, ou une position haute dans laquelle la barrière s'assimile à un portique.Note that in these chain barriers, the position of the chain prohibiting the passage may be a low position, for example at a height corresponding to a wheel height, or a high position in which the barrier is similar to a gantry.

De telles barrières à chaîne sont classiquement utilisées pour assurer des réservations d'emplacements, par exemple à destination de transporteurs de fonds, pour des parkings, ou encore des entrées de propriétés.Such chain barriers are conventionally used to ensure location reservations, for example to fund carriers, for parking, or property entries.

Les chaînes peuvent être en tout matériau, mais sont généralement réalisées en acier de façon à assurer une fonction de sécurité anti-intrusion.The chains may be of any material, but are generally made of steel so as to provide an anti-intrusion safety function.

Actuellement, les fûts d'extrémité présentent classiquement, pour les barrières à chaîne dans lesquelles la chaîne occupe, en position d'obstruction, une hauteur comprise entre 50 cm et 1 m, une hauteur d'environ 90 cm, voire 1 m, pour un diamètre d'une trentaine de centimètres.Currently, the end drums conventionally have, for the chain barriers in which the chain occupies, in the position of obstruction, a height of between 50 cm and 1 m, a height of about 90 cm, or even 1 m, for a diameter of about thirty centimeters.

En général, les moyens d'actionnement logés dans de tels fûts doivent être capables de déplacer la chaîne sur une hauteur d'environ 80 cm, entre une position dans laquelle la chaîne repose sur le sol (ou dans une gouttière ménagée dans le sol et reliant les deux fûts) et libère le passage et une position d'obstruction.In general, the actuating means housed in such drums must be able to move the chain to a height of about 80 cm, between a position in which the chain rests on the ground (or in a gutter formed in the ground and connecting the two barrels) and frees the passage and a position of obstruction.

Traditionnellement, les moyens d'actionnement les plus souvent rencontrés se répartissent en deux catégories principales, à savoir :

  • les actionneurs mettant en oeuvre un treuil simple, relié à un motoréducteur électrique, pour enrouler la chaîne sur un tambour ;
  • les moyens d'actionnement mettant en oeuvre un charriot monté mobile le long d'un rail s'étendant de bas en haut dans les fûts, le charriot étant couplé à une chaîne sans fin s'étendant entre un pignon fou et un pignon moteur entraîné par un moteur tournant.
Traditionally, the actuation means most often encountered fall into two main categories, namely:
  • actuators using a simple winch, connected to an electric geared motor, for winding the chain on a drum;
  • the actuating means using a carriage movably mounted along a rail extending from bottom to top in the drums, the carriage being coupled to an endless chain extending between an idle gear and a driven motor pinion by a rotating engine.

Dans ces deux solutions, les moteurs tournant sont électriques, ce qui engendre certaines limites d'utilisation.In these two solutions, the rotating motors are electric, which generates certain limits of use.

En effet, suivant leur destination, les barrières à chaîne peuvent présenter des longueurs de chaînes allant de 10 à 35 mètres. On comprend qu'avec de telles longueurs de chaînes, réalisées en acier par exemple, le poids de la chaîne est relativement conséquent.Indeed, according to their destination, the chain barriers may have chain lengths ranging from 10 to 35 meters. It is understood that with such chain lengths, made of steel, for example, the weight of the chain is relatively large.

Or, les moteurs électriques utilisés généralement dans les barrières à chaîne, choisies pour leurs dimensions aptes à s'intégrer dans les fûts dont les dimensions sont de l'ordre de celles citées précédemment, présentent un couple limité. Par conséquent, pour les grandes longueurs de chaînes (10 à 35 m), ces moteurs vont connaître une usure prématurée vis-à-vis du couple nécessaire à l'actionnement de la chaîne.However, the electric motors generally used in the chain barriers, chosen for their dimensions adapted to integrate into drums whose dimensions are of the order of those mentioned above, have a limited torque. Therefore, for long chain lengths (10 to 35 m), these engines will experience premature wear vis-à-vis the torque needed to actuate the chain.

Bien entendu, ce phénomène est accentué en cas d'usage intensif de la barrière à chaîne, par exemple lorsqu'il est nécessaire de la descendre et de la remonter plusieurs dizaines de fois par jour.Of course, this phenomenon is accentuated in case of intensive use of the chain barrier, for example when it is necessary to go down and up several tens of times per day.

Une telle usure des moteurs peut conduire à une situation dans laquelle la barrière n'est plus opérationnelle. Cette situation peut intervenir soit en position basse de la chaîne, ce qui rend l'accès permanent et peut causer des problèmes d'insécurité, soit en position d'obstruction de la chaîne ce qui interdit l'accès même en cas de nécessité.Such engine wear can lead to a situation in which the barrier is no longer operational. This situation can occur either in the lower position of the chain, which makes the access permanent and can cause problems of insecurity, either in position obstruction of the chain which prohibits access even if necessary.

Dans de telles situations, une opération de maintenance est bien entendu nécessaire, celle-ci pouvant être plus ou moins longue et plus ou moins coûteuse.In such situations, a maintenance operation is of course necessary, it may be more or less long and more or less expensive.

Par ailleurs, en cas d'usage intensif de la barrière à chaîne, le moteur électrique, à l'intérieur du fût, peut connaître des montées en température l'amenant en surchauffe, ce qui peut également entraîner une détérioration du moteur au point de rendre la barrière inopérante.Moreover, in case of intensive use of the chain barrier, the electric motor inside the barrel can experience temperature rises causing it to overheat, which can also lead to a deterioration of the motor to the point of make the barrier ineffective.

En outre, avec les moteurs électriques traditionnellement utilisés, on constate une lenteur de déplacement de la chaîne.In addition, with the electric motors traditionally used, there is a slow movement of the chain.

L'invention a notamment pour objectif de pallier ces inconvénients de l'art antérieur.The invention particularly aims to overcome these disadvantages of the prior art.

Plus précisément, l'invention a pour objectif de proposer une barrière à chaîne, du type comprenant des moyens d'actionnement mettant en oeuvre un charriot monté mobile le long d'un rail, avec des moyens moteurs autorisant leur utilisation avec des chaînes de grandes longueurs, éventuellement avec un usage intensif.More specifically, the invention aims to provide a chain barrier, of the type comprising actuating means implementing a carriage mounted movably along a rail, with motor means allowing their use with large chains. lengths, possibly with intensive use.

L'invention a également pour objectif de fournir une telle barrière à chaîne qui permette de réduire notablement le temps de déplacement de la chaîne entre sa position haute et sa position basse, et inversement.The invention also aims to provide such a chain barrier that significantly reduces the travel time of the chain between its high position and its low position, and vice versa.

L'invention a encore pour objectif de fournir une telle barrière à chaîne qui permette de conserver les fûts dans les dimensions de l'ordre de celles citées en référence à l'art antérieur.The invention also aims to provide such a chain barrier that allows to keep the drums in the dimensions of the order of those cited with reference to the prior art.

Ces objectifs, ainsi que d'autres qui apparaîtront par la suite, sont atteints grâce à l'invention qui a pour objet une barrière à chaîne, comprenant deux fûts d'extrémité entre lesquels s'étend une chaîne principale, au moins l'un des fûts comprenant des moyens d'actionnement couplés à une extrémité de la chaîne principale et étant destinés à déplacer la chaîne principale entre une position dans laquelle elle interdit le passage d'un véhicule terrestre entre les deux fûts et une position dans laquelle elle autorise le passage d'un véhicule entre les deux fûts, les moyens d'actionnement comprenant au moins un chariot monté mobile le long d'un rail s'étendant de base en haut dans le fût, caractérisée en ce que le chariot est couplé à des moyens d'entraînement comprenant des moyens moteurs linéaires susceptibles de se déployer/rétracter sur une course D1 de bas en haut, ou inversement, dans le fût, les moyens moteurs linéaires étant couplés au chariot par un moyen de transmission souple s'étendant entre deux extrémités, dont une fixée au fût et l'autre fixée au chariot, les moyens moteurs linéaires étant aptes à agir sur le moyen de transmission entre les extrémités pour que la course D1 des moyens moteurs linéaires entraîne une course D2 du chariot le long dudit rail telle que D2 > D1.These objectives, as well as others which will appear later, are achieved thanks to the invention which has for object a chain barrier, comprising two end barrels between which extends a main chain, at least one drums comprising actuating means coupled to one end of the main chain and being intended to move the main chain between a position in which it prohibits the passage of a land vehicle between the two drums and a position in which it authorizes the passing a vehicle between two barrels, the actuating means comprising at least one carriage movably mounted along a rail extending from base to top in the barrel, characterized in that the carriage is coupled to drive means comprising driving means linear lines capable of being deployed / retracted on a stroke D1 from bottom to top, or vice versa, in the barrel, the linear motor means being coupled to the carriage by a flexible transmission means extending between two ends, one of which is fixed to the barrel and the other fixed to the carriage, the linear motor means being able to act on the transmission means between the ends so that the stroke D1 linear motor means causes a stroke D2 of the carriage along said rail such that D2> D1.

Ainsi, grâce à l'invention, on peut s'affranchir des inconvénients de l'art antérieur.Thus, thanks to the invention, one can overcome the disadvantages of the prior art.

En effet, on maintient la solution avantageuse de la mise en oeuvre d'un chariot mobile le long d'un rail, ce chariot étant selon l'invention, couplé à des moyens moteurs linéaires qui évitent, comme cela va ressortir plus clairement par la suite, des problèmes de couple.Indeed, it maintains the advantageous solution of the implementation of a movable carriage along a rail, the carriage being according to the invention, coupled to linear motor means which avoid, as will emerge more clearly by the following, couple problems.

En d'autres termes, les moyens moteurs linéaires vont être opérationnels en toutes circonstances avec des chaînes de grandes longueurs (et en particulier avec tout type de chaîne), ceci éventuellement à des cadences d'utilisation élevées, autorisant par conséquent un usage intensif de la barrière à chaîne.In other words, the linear motor means will be operational in all circumstances with long chains (and in particular with any type of chain), this possibly at high rates of use, thus permitting an intensive use of the chain barrier.

De plus, selon un autre aspect de l'invention, grâce au fait que les moyens moteurs linéaires agissent sur les moyens de transmission entre les deux extrémités de celui-ci de telle sorte que la course des moyens moteurs linéaires soit démultipliée au niveau des moyens de transmission permet de loger les moyens moteurs linéaires dans les fûts classiques mis en oeuvre avec l'art antérieur.In addition, according to another aspect of the invention, thanks to the fact that the linear motor means act on the transmission means between the two ends thereof so that the stroke of the linear motor means is multiplied at the level of the means. transmission means can accommodate the linear motor means in conventional drums implemented with the prior art.

En d'autres termes, on peut loger les moyens moteurs linéaires dans les fûts de hauteur traditionnelle de l'ordre de 90 cm à 1 m.In other words, the linear motor means can be housed in barrels of traditional height of the order of 90 cm to 1 m.

Selon un mode de réalisation avantageux, les moyens moteurs linéaires sont conçus pour agir sur le moyen de transmission entre les extrémités pour que la course D1 des moyens moteurs linéaires entraîne une course D2 du chariot le long dudit rail telle que D2 = 2 x D1.According to an advantageous embodiment, the linear motor means are designed to act on the transmission means between the ends so that the stroke D1 linear motor means causes a stroke D2 of the carriage along said rail such that D2 = 2 x D1.

Selon une solution préférentielle, les moyens moteurs linéaires sont reliés aux moyens de transmission souple de façon à former un mouflage.According to a preferred solution, the linear motor means are connected to the flexible transmission means so as to form a hafting.

On met ainsi en oeuvre une solution de démultiplication particulièrement avantageuse dans le contexte de l'invention.A particularly advantageous reduction solution is thus used in the context of the invention.

On rappelle qu'un mouflage désigne la figure formée par deux bras d'un câble par exemple, entre des tambours, ou des points fixes ou des poulies de renvoi, ceci dans le contexte d'un système de traction et/ou de levage.It is recalled that a haulage designates the figure formed by two arms of a cable, for example, between drums, or fixed points or return pulleys, in the context of a traction and / or lifting system.

Selon une solution avantageuse, les moyens moteurs linéaires sont constitués par un vérin, et préférentiellement par un vérin hydraulique.According to an advantageous solution, the linear motor means are constituted by a jack, and preferably by a hydraulic cylinder.

La mise en oeuvre d'un tel vérin en particulier hydraulique, en tant que moyen moteur linéaire, permet clairement des usages intensifs sans entraîner de problèmes éventuels de surchauffe comme c'est le cas avec les moyens moteurs électriques de l'art antérieur.The implementation of such a jack particularly hydraulic, as a linear motor means, clearly allows intensive use without causing any problems of overheating as is the case with the electric motor means of the prior art.

Dans ce cas, le vérin présente avantageusement un piston dont une extrémité est une extrémité de liaison destinée à coopérer avec le moyen de transmission, l'extrémité de liaison et le moyen de transmission présentant des moyens d'engrènement mutuels.In this case, the jack advantageously has a piston whose end is a connecting end intended to cooperate with the transmission means, the connecting end and the transmission means having mutual meshing means.

Selon un mode de réalisation particulier, l'extrémité de liaison est pourvue d'un pignon, le moyen de transmission étant constitué par une chaîne de transmission.According to a particular embodiment, the connecting end is provided with a pinion, the transmission means being constituted by a transmission chain.

Selon un mode de réalisation préférentiel, le rail est incliné de façon que la chaîne principale est plus tendue lorsque le chariot est en haut du rail qu'en bas du rail.According to a preferred embodiment, the rail is inclined so that the main chain is more taut when the carriage is at the top of the rail at the bottom of the rail.

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante d'un mode de réalisation préférentiel de l'invention, donné à titre de simple exemple illustratif et non limitatif, et des dessins annexés parmi lesquels :

  • la figure 1 illustre schématiquement une barrière à chaîne vue dans son ensemble ;
  • la figure 2 est une représentation schématique d'un des fûts d'une barrière à chaîne selon l'invention, vue en coupe.
Other characteristics and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment of the invention, given by way of a simple illustrative and nonlimiting example, and the appended drawings among which:
  • the figure 1 schematically illustrates a chain barrier as a whole;
  • the figure 2 is a schematic representation of one of the barrels of a chain barrier according to the invention, seen in section.

En référence à la figure 1, une barrière à chaîne comprend deux fûts 1 d'extrémité, entre lesquels s'étend une chaîne principale 2 susceptible d'occuper deux positions, à savoir :

  • une position telle que celle illustrée par la position A, dans laquelle la chaîne principale 2 interdit le passage d'un véhicule terrestre entre les deux fûts 1 ;
  • une position basse telle que celle illustrée par la position B, dans laquelle la chaîne principale 2 autorise le passage d'un véhicule entre les deux fûts.
With reference to the figure 1 , a chain barrier comprises two end drums 1, between which extends a main chain 2 capable of occupying two positions, namely:
  • a position such as that illustrated by the position A, in which the main chain 2 prohibits the passage of a land vehicle between the two barrels 1;
  • a low position such as that illustrated by the position B, wherein the main chain 2 allows the passage of a vehicle between the two barrels.

On note qu'une barrière à chaîne est généralement installée sur un socle en béton 3 sur lequel sont fixés les fûts 1, une gouttière 30 étant ménagée entre les fûts 1 de façon à recevoir la chaîne principale dans la position B.It is noted that a chain barrier is generally installed on a concrete base 3 on which the barrels 1 are fixed, a channel 30 being formed between the barrels 1 so as to receive the main chain in the position B.

Ainsi, la chaîne en position basse est logée dans la gouttière, sous le niveau du sol, évitant aux véhicules terrestres de rouler sur la chaîne ce qui pourrait procurer une sensation désagréable aux conducteurs et/ou endommager à termes les véhicules amenés à passer sur la chaîne de façon répétée.Thus, the chain in the low position is housed in the gutter, below the ground level, avoiding land vehicles to roll on the chain which could provide an unpleasant feeling to drivers and / or damage in terms of the vehicles brought to pass on the chain repeatedly.

Pour déplacer la chaîne de la position A à la position B et inversement, au moins l'un des fûts comprend des moyens d'actionnement couplés à une extrémité de la chaîne principale.To move the chain from position A to position B and vice versa, at least one of the drums comprises actuating means coupled to one end of the main chain.

Tel qu'illustré par la figure 2, ces moyens d'actionnement comprennent :

  • un rail 4, s'étendant de bas en haut à l'intérieur du fût 1 ;
  • un chariot 5, monté mobile le long du rail 4, l'extrémité correspondante 20 de la chaîne principale 2 étant solidarisée au chariot 5 ;
  • des moyens d'entraînement 6 couplés au chariot 5, ces moyens d'entraînement permettant de déplacer le charriot d'une position basse sur le rail à une position haute sur le rail, ou inversement.
As illustrated by figure 2 these actuating means comprise:
  • a rail 4, extending from bottom to top inside the barrel 1;
  • a carriage 5, mounted movably along the rail 4, the corresponding end 20 of the main chain 2 being secured to the carriage 5;
  • drive means 6 coupled to the carriage 5, these drive means for moving the carriage from a low position on the rail to a high position on the rail, or vice versa.

Le fût 1 est refermé par un chapeau 10, fixé de manière amovible sur le fût.The barrel 1 is closed by a cap 10, removably attached to the barrel.

Selon le principe de l'invention, les moyens d'entraînement comprennent des moyens moteurs linéaires susceptibles de se déployer/rétracter sur une course D1 de bas en haut, ou inversement, dans le fût.According to the principle of the invention, the drive means comprise linear motor means capable of being deployed / retracted on a stroke D1 from bottom to top, or vice versa, in the barrel.

En outre, ces moyens moteurs linéaires sont couplés au chariot 5 par un moyen de transmission 7 souple s'étendant entre deux extrémités 70, 71, dont une extrémité 70 est fixée au fût et l'autre extrémité 71 est fixée au chariot. Toujours selon le principe de l'invention, les moyens moteurs linéaires 6 agissent sur le moyen de transmission 7 à une distance desdites extrémités 70, 71 prévue pour que la course D1 des moyens moteurs linéaires entraîne une course D2 du chariot le long du rail supérieure à la course D1, et préférentiellement égale à deux fois la course D1.In addition, these linear motor means are coupled to the carriage 5 by a flexible transmission means 7 extending between two ends 70, 71, one end 70 is fixed to the barrel and the other end 71 is fixed to the carriage. Still according to the principle of the invention, the linear motor means 6 act on the transmission means 7 at a distance from said ends 70, 71 provided so that the stroke D1 linear motor means causes a stroke D2 of the carriage along the upper rail in the race D1, and preferably equal to twice the race D1.

Ainsi, les moyens moteurs linéaires peuvent être constitués par un vérin, et préférentiellement par un vérin hydraulique, comprenant un corps 60 et un piston 61.Thus, the linear motor means may be constituted by a jack, and preferably by a hydraulic jack, comprising a body 60 and a piston 61.

Le corps du vérin s'étend verticalement dans le fût. Il repose et est fixé sur le fond 8 du fût.The cylinder body extends vertically into the barrel. It rests and is fixed on the bottom 8 of the barrel.

En appliquant le principe de l'invention, la course D1 du piston va permettre un déplacement du chariot 5 sur la hauteur du rail correspondant à environ deux fois la course D1. En d'autres termes, un vérin dont le corps et le piston présentent la moitié de la hauteur du rail environ suffit à déplacer le chariot sur toute la hauteur du rail en appliquant le principe de l'invention.By applying the principle of the invention, the stroke D1 of the piston will allow a displacement of the carriage 5 on the height of the rail corresponding to about twice the stroke D1. In other words, a cylinder whose body and the piston have about half the height of the rail is sufficient to move the carriage over the entire height of the rail by applying the principle of the invention.

Selon un aspect préféré de l'invention, les moyens moteurs linéaires sont reliés aux moyens de transmission 7 de façon à former un mouflage.According to a preferred aspect of the invention, the linear motor means are connected to the transmission means 7 so as to form a hafting.

Pour cela, le piston 61 présente une extrémité de liaison 610 destiné à coopérer avec le moyen de transmission 7, cette extrémité de liaison étant pourvue d'un pignon 611, le moyen de transmission 7 étant constitué selon un mode de réalisation préférentiel par une chaîne de transmission. Ainsi les dents du pignon 611 et les maillons de la chaîne de transmission constituent les moyens d'engrènement mutuel de l'extrémité de liaison avec le moyen de transmission.For this, the piston 61 has a connecting end 610 intended to cooperate with the transmission means 7, this connecting end being provided with a pinion 611, the transmission means 7 being constituted according to a preferred embodiment by a chain of transmission. Thus, the teeth of the pinion 611 and the links of the transmission chain constitute the means of mutual engagement of the connecting end with the transmission means.

On note que la chaîne de transmission est couplée par l'une de ses extrémités à l'intérieur du fût 1 au voisinage de l'extrémité supérieure du corps 60 du vérin, tandis que l'autre extrémité 71 de la chaîne de transmission est couplée en partie supérieure du chariot.It is noted that the transmission chain is coupled at one of its ends to the inside of the barrel 1 in the vicinity of the upper end of the body 60 of the jack, while the other end 71 of the transmission chain is coupled. in the upper part of the trolley.

De cette façon, l'extrémité 70 de la chaîne de transmission constitue le point d'ancrage de la chaîne de transmission par rapport auquel l'autre extrémité 71 de la chaîne est déplacée sous l'effet du déplacement du piston et du vérin.In this way, the end 70 of the transmission chain constitutes the anchor point of the transmission chain with respect to which the other end 71 of the chain is moved under the effect of the displacement of the piston and the cylinder.

Lorsque le piston du vérin est rétracté dans le corps du vérin, l'extrémité de liaison du piston est positionnée au voisinage de l'extrémité 70 fixe de la chaîne de transmission, donc approximativement à la même hauteur. La chaîne de transmission présente donc un brin court côté de l'extrémité 70, et un brin long côté de l'extrémité 71.When the piston of the jack is retracted into the cylinder body, the connecting end of the piston is positioned near the fixed end 70 of the transmission chain, so approximately at the same height. The transmission chain thus has a short side of the end 70, and a long side of the end 71.

A l'inverse, lorsque le piston du vérin est complétement déployé, l'extrémité de liaison du piston s'étend au voisinage de l'extrémité 71 de la chaîne de transmission, donc approximativement à la même hauteur en position haute du chariot sur le rail que l'extrémité 71. La chaîne de transmission présente alors un brin court du côté de l'extrémité 71, et un brin long du côté de l'extrémité 70.Conversely, when the piston of the cylinder is completely deployed, the connecting end of the piston extends in the vicinity of the end 71 of the transmission chain, so approximately at the same height in the high position of the carriage on the rail end 71. The transmission chain then has a short run on the side of the end 71, and a long run on the side of the end 70.

Par ailleurs, le rail 4 présente, tel que cela apparaît clairement sur la figure 2, une inclinaison prévue de telle sorte que la chaîne 2 est plus tendue lorsque le chariot est en haut du rail que lorsqu'il est en bas du rail.Moreover, the rail 4 presents, as it is clear on the figure 2 , an inclination provided so that the chain 2 is more stretched when the carriage is at the top of the rail than when it is at the bottom of the rail.

Les moyens d'actionnement de la chaîne qui viennent d'être décrits sont préférentiellement intégrés à chacun des fûts de la barrière à chaîne.The actuation means of the chain which have just been described are preferentially integrated with each of the barrels of the chain barrier.

Claims (8)

  1. Chain barrier, comprising two end posts (1) between which a main chain (2) extends, at least one of the posts comprising actuation means (4), (5), (6) coupled to one end (20) of the main chain (2) and being intended to move the main chain (2) between a position in which it prevents the passage of a land vehicle between the two posts (1) and a position in which it allows passage of a vehicle between the two posts (1), the actuation means (4), (5), (6) comprising at least one carriage (5) mounted so as to be able to move along a rail (4) extending from bottom to top in the post (1),
    characterised in that the carriage (5) is coupled to drive means (6) comprising linear drive means (60), (61) able to be deployed/retracted on a travel D1 from bottom to top, or vice versa, in the post (1), the linear drive means (60), (61) being coupled to the carriage (5) by a flexible transmission means (7) extending between two ends (70), (71), one of which is fixed to the posts (1) and the other fixed to the carriage (5), the linear drive means (60), (61) being able to act on the transmission means (7) between the ends (70), (71) so that the travel D1 of the linear drive means (60), (61) causes a travel D2 of the carriage (5) along said rail (4) such that D2 > D1.
  2. Chain barrier according to claim 1, characterised in that the linear drive means (60), (61) are designed so as to act on the transmission means between the ends (70), (71) so that the travel D1 of the linear drive means causes a travel D2 of the carriage along said rail such that D2 = 2 x D1.
  3. Chain barrier according to one of claims 1 and 2, characterised in that the linear drive means (60), (61) are connected to the flexible transmission means (7) so as to form a block and tackle.
  4. Chain barrier according to any one of claims 1 to 3, characterised in that the linear drive means (60), (61) consist of an actuator.
  5. Chain barrier according to claim 4, characterised in that the linear drive means (60), (61) consist of a hydraulic actuator.
  6. Chain barrier according to claim 4, characterised in that the actuator advantageously has a piston (61), one end of which is a connection end (610) intended to cooperate with the transmission means (7), the connection end and the transmission end having mutual meshing means.
  7. Chain barrier according to claim 6, characterised in that the connection end (610) is provided with a pinion (611), the transmission end (7) consisting of a transmission chain.
  8. Chain barrier according to any one of claims 1 to 7, characterised in that the rail (4) is inclined so that the main chain (10) is more tensioned when the carriage (5) is at the top of the rail than at the bottom of the rail.
EP15163818.6A 2014-05-08 2015-04-16 Chain barrier including means for actuating the chain comprising a carriage connected to linear motor means Active EP2942435B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1454165A FR3020821B1 (en) 2014-05-08 2014-05-08 CHAIN BARRIER INCLUDING MEANS FOR ACTUATING THE CHAIN COMPRISING A CARRIAGE CONNECTED TO LINEAR MOTOR MEANS

Publications (2)

Publication Number Publication Date
EP2942435A1 EP2942435A1 (en) 2015-11-11
EP2942435B1 true EP2942435B1 (en) 2016-09-14

Family

ID=50976960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15163818.6A Active EP2942435B1 (en) 2014-05-08 2015-04-16 Chain barrier including means for actuating the chain comprising a carriage connected to linear motor means

Country Status (2)

Country Link
EP (1) EP2942435B1 (en)
FR (1) FR3020821B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10240307B2 (en) * 2014-04-23 2019-03-26 Qmetrix Gmbh Belt stanchion for a people guidance system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9695560B2 (en) * 2014-08-22 2017-07-04 Stephen NEUSCH Portable net barrier system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926385A1 (en) * 1969-05-23 1970-11-26 Schulz Celler Drahtwaren Chain barrier
FR2506359A1 (en) * 1981-05-22 1982-11-26 Zemboudji Abdelhamid Automatic chain barrier for restricted area access - has chain mounted on inclined posts which reduction motor driving slide piece connected to one end of chain
US6349503B1 (en) * 1999-11-18 2002-02-26 Ijot Development, Inc. Fluid powered barrier system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10240307B2 (en) * 2014-04-23 2019-03-26 Qmetrix Gmbh Belt stanchion for a people guidance system

Also Published As

Publication number Publication date
FR3020821A1 (en) 2015-11-13
EP2942435A1 (en) 2015-11-11
FR3020821B1 (en) 2016-05-27

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