EP2500468A1 - Device for expansion of a guide rail - Google Patents

Device for expansion of a guide rail Download PDF

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Publication number
EP2500468A1
EP2500468A1 EP12305290A EP12305290A EP2500468A1 EP 2500468 A1 EP2500468 A1 EP 2500468A1 EP 12305290 A EP12305290 A EP 12305290A EP 12305290 A EP12305290 A EP 12305290A EP 2500468 A1 EP2500468 A1 EP 2500468A1
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EP
European Patent Office
Prior art keywords
rail
clearance
expansion
clearances
recesses
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Granted
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EP12305290A
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German (de)
French (fr)
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EP2500468B1 (en
Inventor
Francesco Barresi
Jean-Luc Andre
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Vossloh COGIFER SA
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Vossloh COGIFER SA
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Publication of EP2500468A1 publication Critical patent/EP2500468A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/28—Rail tracks for guiding vehicles when running on road or similar surface
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B11/00—Rail joints
    • E01B11/44—Non-dismountable rail joints; Welded joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • E01B5/14—Rails for special parts of the track, e.g. for curves

Abstract

The device has a lubrication system for lubrication of a path portion (2) of a guide rail (1) to facilitate movement in translation of the rail with respect to a ground surface. The path portion of the rail is continuously formed by successive recesses based on thickness of the rail along predefined widths of the recesses, and is alternately arranged at two sides of the rail in planes parallel to each other. Each recess is filled with an elastomer material. An angle iron is positioned on two sides of a base of the rail. The elastomer material is polyurethane resin, foam or silicone.

Description

La présente invention se rapporte au domaine des rails de guidage en chaussée et plus particulièrement aux dispositifs de dilatation pour rails de guidage en chaussée.The present invention relates to the field of guide rails in pavement and more particularly to the expansion devices for guide rails in pavement.

L'application de la présente invention concerne notamment certains véhicules largement utilisés dans les transports publics. Ces véhicules présentent généralement un portage et un roulement assurés par des pneumatiques, tandis que le guidage est effectué par un unique rail central métallique entre deux voies pour pneumatiques et contre lequel viennent se positionner des galets inclinés roulants qui asservissent un système de direction du véhicule concerné. Le domaine d'application peut également concerner les véhicules dont le portage est assuré, non pas par des pneumatiques, mais par des roues en fer montées sur des rails ferroviaires.The application of the present invention relates in particular to certain vehicles widely used in public transport. These vehicles generally have a bearing and a bearing provided by tires, while the guiding is performed by a single metal central rail between two tire lanes and against which are positioned rollers inclined rolling which enslave a steering system of the vehicle concerned . The field of application may also concern vehicles whose carrying is ensured, not by tires, but by iron wheels mounted on railway rails.

Le rail de guidage comprend classiquement un champignon supérieur porté par un patin qui forme la base du rail par l'intermédiaire d'un axe dont l'épaisseur est généralement inférieure à celle du champignon. Le champignon comprend, lui, cinq facettes destinées à interagir avec le véhicule pour le fonctionnement de ce dernier :

  • une facette supérieure contre laquelle est positionné le frotteur du véhicule,
  • deux facettes latérales supérieures contre lesquelles se positionnent les galets du véhicule en fonctionnement normal,
  • deux facettes latérales inférieures contre lesquelles se positionnent les galets du véhicule en fonctionnement d'exception.
The guide rail conventionally comprises an upper mushroom carried by a shoe which forms the base of the rail via an axis whose thickness is generally less than that of the mushroom. The mushroom comprises, him, five facets intended to interact with the vehicle for the operation of the latter:
  • an upper facet against which is positioned the friction of the vehicle,
  • two upper lateral faces against which the rollers of the vehicle are positioned in normal operation,
  • two lower side facets against which are positioned the rollers of the vehicle in exceptional operation.

Ces rails de guidage peuvent être amenés à subir des contraintes de dilatation, soit directes sous l'action de variations de chaleur sur le rail lui-même, soit indirectes lorsque le rail franchit des joints de dilatation propres à certains ouvrages d'art, tels que des ponts, des viaducs, etc. dont la permissivité est trop importante.These guide rails can be caused to undergo expansion stresses, either direct under the action of heat variations on the rail itself, or indirect when the rail crosses expansion joints specific to certain structures, such as only bridges, viaducts, etc. whose permissiveness is too important.

Pour surmonter ces contraintes, des dispositifs de dilatation ont été mis en place. Certains de ces dispositifs sont réalisés par une jonction au niveau de deux rails successifs sous la forme de biseaux ou de baïonnettes. Cependant, une telle solution n'est pas applicable à un rail de guidage, dont les différentes facettes du champignon sont destinées à interagir avec un système du véhicule.To overcome these constraints, expansion devices have been put in place. Some of these devices are made by a junction at two successive rails in the form of bevels or bayonets. However, such a solution is not applicable to a guide rail, of which the different facets of the mushroom are intended to interact with a vehicle system.

Le document WO 2010/018310 propose un dispositif de dilatation pour rail de guidage, dont une portion de rail est formée par une succession de lamelles indépendantes présentant le même profil qu'une section du rail et liées entre elles par un élastomère. Ces différentes lamelles sont à même de supporter une dilatation grâce à un guidage en translation assuré par des axes traversant qui portent ces lamelles. Cependant, une telle solution ne conserve pas l'intégralité du profil du rail et ne permet pas le positionnement d'ornières élastiques nécessaires pour l'éjection d'obstacles. De plus, cette solution s'appuie uniquement sur la présence d'un élastomère élastique pour assurer une limitation du jeu existant entre deux lamelles successives, ce qui ne permet pas d'empêcher un écartement excessif de ces lamelles.The document WO 2010/018310 proposes a guide rail expansion device, a rail portion of which is formed by a succession of independent lamellae having the same profile as a section of the rail and linked together by an elastomer. These different slats are able to withstand expansion thanks to a guide in translation provided by traversing axes which carry these slats. However, such a solution does not retain the entire rail profile and does not allow the positioning of elastic ruts necessary for the ejection of obstacles. In addition, this solution is based solely on the presence of an elastic elastomer to ensure a limitation of the clearance between two successive lamellae, which does not prevent excessive spacing of these lamellae.

La présente invention a pour but de pallier ces inconvénients.The present invention aims to overcome these disadvantages.

A cet effet, elle a pour objet un dispositif de dilatation d'un rail adapté au guidage de roues d'au moins un véhicule sur une voie caractérisé en ce que le rail comprend une portion de voie continue formée par une pluralité de dégagements successifs dans l'épaisseur du rail selon des largeurs prédéfinies de dégagements et disposés alternativement de part et d'autre du rail dans des plans parallèles entre eux pour supprimer toute continuité axiale du rail au niveau de la portion de voie.For this purpose, it relates to a device for dilating a rail adapted to guide wheels of at least one vehicle on a track, characterized in that the rail comprises a portion of continuous track formed by a plurality of successive clearances in the thickness of the rail according to predefined clearance widths and arranged alternately on either side of the rail in planes parallel to each other to eliminate any axial continuity of the rail at the portion of the track.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à au moins un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1 est la représentation schématique d'un dispositif de dilatation pour rail selon l'invention en contact avec des galets d'un véhicule,
  • la figure 2 est la représentation schématique d'une section dans un plan perpendiculaire à l'axe d'un rail et passant par un dégagement d'un dispositif selon l'invention,
  • la figure 3 est la représentation schématique d'une vue supérieure d'un dispositif de dilatation selon l'invention,
  • les figures 4a et 4b sont les représentations schématiques de deux exemples d'arrangement de dégagements pour un dispositif de dilatation selon l'invention, et
  • les figures 5a, 5b et 5c sont les représentations schématiques respectives d'une section selon un axe parallèle à l'axe d'un rail et passant par des cavaliers d'un dispositif selon l'invention au repos, en extension et en compression.
The invention will be better understood, thanks to the following description, which relates to at least one preferred embodiment, given by way of non-limiting example, and explained with reference to the attached schematic drawings, in which:
  • the figure 1 is the schematic representation of a rail expansion device according to the invention in contact with rollers of a vehicle,
  • the figure 2 is the schematic representation of a section in a plane perpendicular to the axis of a rail and passing through a clearance of a device according to the invention,
  • the figure 3 is the schematic representation of a top view of an expansion device according to the invention,
  • the Figures 4a and 4b are diagrammatic representations of two examples of relief arrangements for a dilation device according to the invention, and
  • the Figures 5a, 5b and 5c are the respective schematic representations of a section along an axis parallel to the axis of a rail and passing through jumpers of a device according to the invention at rest, in extension and in compression.

L'invention se rapporte à un dispositif de dilatation d'un rail 1 adapté au guidage de roue d'au moins un véhicule sur une voie.The invention relates to a device for dilating a rail 1 adapted to guide a wheel of at least one vehicle on a track.

Conformément à l'invention, le dispositif de dilatation est caractérisé en ce que le rail 1 comprend une portion de voie 2 continue formée par une pluralité de dégagements 5 successifs dans l'épaisseur du rail 1 selon des largeurs prédéfinies de dégagements 5 et disposés alternativement de part et d'autre du rail 1 dans des plans parallèles entre eux pour supprimer toute continuité axiale du rail 1 au niveau de la portion de voie 2. Cette arrangement particulier a pour objectif de conserver une continuité matériel du rail 1 au niveau de la portion de voie 2 tout en générant une discontinuité axiale du rail 1 de façon à permettre au rail 1 de supporter une déformation axiale. Ainsi, les dégagements 5 successifs peuvent être positionnés dans des plans perpendiculaires à un plan passant par l'axe de la portion de voie 2. Toutefois, pour s'assurer de la discontinuité axial du rail 1, ces plans parallèles entre eux ne doivent pas inclure l'axe de la portion de voie 2.According to the invention, the expansion device is characterized in that the rail 1 comprises a continuous track portion 2 formed by a plurality of successive clearances 5 in the thickness of the rail 1 according to predefined clearance widths 5 and arranged alternately on either side of the rail 1 in planes parallel to each other to eliminate any axial continuity of the rail 1 at the portion of track 2. This particular arrangement aims to maintain a material continuity of the rail 1 at the level of portion of track 2 while generating an axial discontinuity of the rail 1 so as to allow the rail 1 to withstand axial deformation. Thus, the successive clearances 5 may be positioned in planes perpendicular to a plane passing through the axis of the track portion 2. However, to ensure the axial discontinuity of the rail 1, these parallel planes between them must not include the axis of the track portion 2.

Le nombre de dégagements 5 successifs disposés au niveau de la portion de voie 2 est prédéfini en fonction du mouvement de dilatation à gérer. En effet, plus le mouvement de dilatation à gérer est important et plus il est nécessaire d'avoir un nombre élevé de dégagement au niveau de la portion de voie 2 du rail 1.The number of successive clearances 5 disposed at the level of the channel portion 2 is predefined as a function of the expansion movement to be managed. Indeed, the larger the expansion movement to manage is important and more it is necessary to have a high number of clearance at the track portion 2 of the rail 1.

Ces dégagements 5 peuvent ainsi former des gorges dont chacune sépare le rail 1 en deux parties sur une portion d'une largeur ou d'une épaisseur du rail 1 en laissant une jonction 11 entre ces deux parties pour assurer une continuité. Selon un mode de réalisation préféré mais non limitatif, au moins un des dégagements 5 du dispositif correspond à plus de soixante pour cent (60%) de la surface d'une section correspondante du rail 1.These clearances 5 can thus form grooves, each of which separates the rail 1 in two parts over a portion of a width or thickness of the rail 1 leaving a junction 11 between these two parts to ensure continuity. According to a preferred but nonlimiting embodiment, at least one of the openings 5 of the device corresponds to more than sixty percent (60%) of the surface of a corresponding section of the rail 1.

Selon un mode de réalisation préféré mais non limitatif de l'invention, ces dégagements 5 sont disposés alternativement de part et d'autre du rail 1 sur la portion de voie 2. Bien que cette alternance de l'arrangement des dégagements 5 soit préférentiellement effectuée par rapport aux deux cotés du rail 1, l'alternance des dégagements 5 peut être envisagée par rapport aux faces supérieure et inférieure du rail 1.According to a preferred but non-limiting embodiment of the invention, these clearances 5 are arranged alternately on either side of the rail 1 on the track portion 2. Although this alternation of the arrangement of the clearances 5 is preferably carried out by relative to the two sides of the rail 1, the alternation of the clearances 5 can be considered with respect to the upper and lower faces of the rail 1.

L'alternance des dégagements 5 de part et d'autre du rail 1 au niveau de la portion de voie 2 déformable permet une amélioration de la capacité de la portion de voie 2 à se déformer lorsque le fond de chacune des gorges qui forment les dégagements 5 est plus proche du bord du rail 1 où se positionne la jonction 11 entre les deux parties du rail 1 séparées par le dégagement 5.The alternation of clearances 5 on either side of the rail 1 at the portion of deformable track 2 allows an improvement in the capacity of the portion of track 2 to be deformed when the bottom of each of the grooves that form the clearances 5 is closer to the edge of the rail 1 where is positioned the junction 11 between the two parts of the rail 1 separated by the clearance 5.

L'alternance des dégagements 5 de part et d'autre du rail 1 permet aux dégagements 5 successifs de traverser le plan de symétrie du rail 1 et de s'imbriquer entre eux, de sorte que le fond d'un premier dégagement positionné ou ouvert vers un coté du rail 1 se trouve disposé entre deux dégagements positionnés ou ouverts vers le coté opposé du rail 1. Cet arrangement permet ainsi d'apporter à la portion de voie 2 un profil sensiblement sinusoïdal capable d'assurer au rail 1 une certaine élasticité en translation tout en conservant une unité et une continuité de la portion de voie 2 grâce aux points de jonction 11.The alternation of clearances 5 on either side of the rail 1 allows the successive clearances 5 to cross the plane of symmetry of the rail 1 and to interlock with each other, so that the bottom of a first clearance positioned or open to one side of the rail 1 is disposed between two clearances positioned or open towards the opposite side of the rail 1. This arrangement thus makes it possible to provide the track portion 2 a substantially sinusoidal profile capable of ensuring the rail 1 a certain elasticity in translation while maintaining unity and continuity of the track portion 2 through the junction points 11.

Ainsi, lors d'un écartement des extrémités de la portion de voie 2, cet écartement entraîne une séparation des faces latérales de chacune des gorges 5 et une ouverture de chacun des dégagements 5. De même, lors d'une contraction avec un rapprochement des extrémités de la portion de voie 2, ce rapprochement se traduit par la réduction de l'espace qui sépare les deux faces latérales de chacune des gorges 5 et une fermeture de chacun des dégagements 5.Thus, during a separation of the ends of the track portion 2, this spacing causes a separation of the lateral faces of each of the grooves 5 and an opening of each of the clearances 5. Similarly, during a contraction with a rapprochement of ends of the portion of track 2, this approximation results in the reduction of the space separating the two lateral faces of each of the grooves 5 and a closure of each of the openings 5.

Pour éviter toute intrusion inopportune dans les dégagements 5 lorsque la portion de voie 2 est étirée, chacun de ces dégagements 5 est comblé par un élastomère adapté pour supporter les déformations d'écartement subies par ledit dégagement 5. L'élastomère utilisé peut être une résine de type polyuréthane, de la mousse ou du silicone.To avoid any undesirable intrusion into the clearances 5 when the channel portion 2 is stretched, each of these clearances 5 is filled by an elastomer adapted to withstand the distortion deformations experienced by said clearance 5. The elastomer used may be a resin polyurethane type, foam or silicone.

Le rail 1 de guidage peut être amené à participer à l'alimentation électrique du véhicule, notamment par l'intermédiaire du champignon du rail 1 en contact avec un frotteur et des galets 7 du véhicule. La continuité physique de la portion de voie 2 entre les différents dégagements 5 successifs au niveau des points de jonctions 11 n'est pas suffisante pour permettre la transmission de l'intégralité du courant électrique au travers de la portion de voie 2. En effet, ces jonctions 11 présentent des sections inférieures à la section complète du rail 1.The guide rail 1 can be made to participate in the power supply of the vehicle, in particular via the head of the rail 1 in contact with a wiper and rollers 7 of the vehicle. The physical continuity of the track portion 2 between the successive successive clearances at the junction points 11 is not sufficient to allow the transmission of the entire electric current through the track portion 2. Indeed, these junctions 11 have sections lower than the complete section of the rail 1.

Aussi pour contourner cet inconvénient, le dispositif de l'invention peut comprendre au moins un moyen de dérivation électrique 9 ou shuntage entre l'amont et l'aval de la portion de voie 2 continue du rail 1 du dispositif. Cette dérivation est ainsi réalisée par un équivalent cuivre formé par un ou plusieurs câbles connectés d'une part à une portion de voie située en amont et d'autre part à une portion de voie située en aval de la portion de voie 2 continue du rail 1.Also to overcome this drawback, the device of the invention may comprise at least one electrical bypass means 9 or shunting between the upstream and downstream of the continuous track portion 2 of the rail 1 of the device. This derivation is thus achieved by a copper equivalent formed by one or more cables connected on the one hand to a portion of track located upstream and on the other hand to a portion of track located downstream of the portion of track 2 continuous rail 1.

Selon un mode de réalisation préféré, le dispositif de l'invention comprend des moyens 8 permettant de limiter une ouverture trop importante des dégagements 5. En effet, suite aux différentes contraintes subies par la portion de voie 2, l'écartement entre les parois latérales des différents dégagements 5 de la portion de voie 2 ne s'effectue pas de façon homogène et n'est pas toujours identique pour chacun des dégagements 5. Ainsi, lors d'une dilatation, l'écartement entre des parois latérales d'un des dégagements 5 risque de s'effectuer au-delà du point de rupture de l'élasticité propre au dégagement 5 ou de produire un jeu supérieur à une limite admissible, par exemple de 10 millimètres.According to a preferred embodiment, the device of the invention comprises means 8 making it possible to limit an excessive opening of the clearances 5. In fact, following the different stresses on the track portion 2, the spacing between the side walls the different clearances 5 of the track portion 2 does not perform homogeneously and is not always identical for each of the clearances 5. Thus, during an expansion, the spacing between the side walls of one of the Clearances 5 may occur beyond the breaking point of the springing elasticity 5 or produce a clearance greater than a permissible limit, for example 10 millimeters.

Aussi, selon un mode de réalisation non limitatif de l'invention, le dispositif de dilatation intègre des cavaliers 8 arrangés pour limiter l'ouverture d'un premier (n) dégagement 5 par positionnement d'une jambe dans chacun des dégagements 5 juxtaposés (n-1 ; n+1) au premier (n) dégagement 5. Chacun des cavaliers 8 est ainsi positionné de façon à enjamber le premier (n) dégagement 5 dont il doit limiter l'écartement. Une première jambe du cavalier est alors logée dans le dégagement 5 positionné en amont (n-1) du premier (n) dégagement 5 limité et une seconde jambe du cavalier est logée dans le dégagement 5 positionné en aval (n+1) du premier (n) dégagement limité. Les dégagements 5 positionnés en amont (n+1) et en aval (n-1) sont des dégagements 5 dont l'ouverture est orientée vers le coté du rail 1 opposé à celui vers lequel est orienté l'ouverture du premier (n) dégagement 5 limité par le cavalier 8.Also, according to a non-limiting embodiment of the invention, the expansion device includes jumpers 8 arranged to limit the opening of a first (n) clearance 5 by positioning a leg in each of the juxtaposed clearances 5 ( n-1; n + 1) at the first (n) clearance 5. Each of the jumpers 8 is thus positioned so as to span the first (n) clearance 5 which it must limit the spacing. A first leg of the rider is then housed in the clearance 5 positioned upstream (n-1) of the first (n) limited clearance 5 and a second leg of the rider is housed in the clearance 5 positioned downstream (n + 1) of the first (n) limited clearance. The clearances 5 positioned upstream (n + 1) and downstream (n-1) are clearances 5 whose opening is oriented towards the side of the rail 1 opposite to that towards which the opening of the first (n) clearance 5 limited by rider 8.

Selon une particularité de réalisation, les jambes de chacun des cavaliers 8 sont positionnées dans des logements 6 adaptés dans leurs dégagements 5 respectifs. Selon une variante de réalisation non limitative de l'invention, ces logements 6 sont disposés dans le fond des dégagements 5. Chacun de ces logements 6 peut être formé par un élargissement localisé d'un dégagement 5.According to a particular embodiment, the legs of each of the jumpers 8 are positioned in recesses 6 adapted in their respective recesses 5. According to a non-limiting embodiment of the invention, these housings 6 are arranged in the bottom of the recesses 5. Each of these recesses 6 can be formed by a localized enlargement of a recess 5.

Préférentiellement, les différents logements 6 successifs de la portion de voie 2 peuvent être arrangés pour recevoir les jambes de deux cavaliers 8 qui limitent les ouvertures de deux dégagements 5 successifs et dont les ouvertures sont orientées vers un même coté du rail 1. Le logement est également préférentiellement arrangé pour autoriser une translation des jambes des cavaliers 8 dans le logement 6 selon l'axe de la portion de voie 2 du rail 1. Ainsi, un même logement 6 positionné dans le fond d'un premier (n) dégagement 5 reçoit à la fois une jambe du cavalier 8 qui limite l'ouverture du dégagement 5 positionné en aval (n+ 1) et à la fois une jambe du cavalier 8 qui limite l'ouverture du dégagement 5 positionné en amont (n-1). En revanche, en extrémité de la portion de voie 2, le logement 12 destiné à recevoir une des jambes du cavalier 8 qui limite l'ouverture du premier ou du dernier des dégagements 5 successifs n'est pas disposé dans la profondeur d'un dégagement mais correspond à un évidement ou un alésage dans une extrémité du rail 1, à proximité du dégagement limité par le cavalier 8. Ce logement 12 particulier est arrangé avec la jambe du cavalier 8 qui l'occupe pour être solidaire en mouvement avec la partie du rail 1 situé à ce niveau de la portion de voie 2.Preferably, the different successive housings 6 of the track portion 2 can be arranged to receive the legs of two jumpers 8 which limit the openings of two successive clearances 5 and whose openings are oriented towards the same side of the rail 1. The housing is also preferably arranged to allow a translation of the legs of the jumpers 8 in the housing 6 along the axis of the track portion 2 of the rail 1. Thus, the same housing 6 positioned in the bottom of a first (n) clearance 5 receives both a leg of the rider 8 which limits the opening of the clearance 5 positioned downstream (n + 1) and both a leg of the rider 8 which limits the opening of the clearance 5 positioned upstream (n-1). On the other hand, at the end of the track portion 2, the housing 12 intended to receive one of the legs of the rider 8 which limits the opening of the first or the last of the successive clearances 5 is not disposed in the depth of a clearance but corresponds to a recess or a bore in one end of the rail 1, close to the clearance limited by the rider 8. This particular housing 12 is arranged with the leg of the rider 8 which occupies it for solidarity with the moving part of the rail 1 located at this level of the track portion 2.

Selon une particularité préférée de réalisation mais non limitative de l'invention, dans la portion de voie 2 du rail 1, les découpes des dégagements 5 et des différents logements 6 et 12 peuvent comporter des congés ou des formes adoucies afin de limiter les concentrations de contraintes mécaniques dans la partie restante du rail 1.According to a preferred but nonlimiting embodiment of the invention, in the track portion 2 of the rail 1, the cutouts of the recesses 5 and the different housings 6 and 12 may include leaves or softened shapes in order to limit the concentrations of mechanical stresses in the remaining part of the rail 1.

Lorsqu'une contrainte de dilatation est imposée au rail 1, la portion de voie 2 subit un étirement. Les différents dégagements 5 successifs s'ouvrent, écartant consécutivement les cavaliers 8 jusqu'à un écartement maximal atteint lorsque les jambes de chacun des cavaliers 8 entre en contact avec une des parois latérales de leurs logements 6 respectifs.When an expansion stress is imposed on the rail 1, the track portion 2 undergoes stretching. The successive successive clearances 5 open, separating the jumpers 8 consecutively to a maximum distance reached when the legs of each of the jumpers 8 come into contact with one of the side walls of their respective seats 6.

Inversement, lorsqu'une contrainte de rétraction est imposée au rail 1, la portion de voie 2 subit une compression axiale. Les différents dégagements 5 successifs se ferment, rapprochant consécutivement les cavaliers jusqu'à atteindre un écartement minimal une fois que les jambes des cavaliers 8 d'un même logement 6 entre en contact entre eux. La valeur minimale de la largeur des dégagements 5 peut ainsi être maîtrisée et/ou limitée à une valeur non-nulle. Cette valeur minimale peut atteindre par exemple deux millimètres (2 mm).Conversely, when a retraction stress is imposed on the rail 1, the track portion 2 undergoes axial compression. The successive successive releases 5 close, bringing the riders consecutively closer to reaching a minimum distance once the legs of the riders 8 of the same housing 6 come into contact with each other. The minimum value of the width of the clearances 5 can thus be controlled and / or limited to a non-zero value. This minimum value can reach for example two millimeters (2 mm).

De plus, selon une particularité de réalisation de l'invention, le dispositif de dilatation est caractérisé en ce que la portion de voie 2 continue du rail 1 est maintenue au sol par au moins une paire de cornières 4 positionnées de part et d'autre du patin du rail 1 de façon à former un axe de glissement autorisant des mouvements de translation selon l'axe du rail 1. Selon un mode de réalisation préféré mais non limitatif de l'invention, le glissement de la portion de voie 2 par rapport au sol, ou par rapport à un élément fixé au sol, est maintenu sous l'action d'un graissage ou d'une lubrification entretenu par un système de lubrification 10 intégré au dispositif de dilatation.In addition, according to one embodiment of the invention, the expansion device is characterized in that the continuous track portion 2 of the rail 1 is held on the ground by at least one pair of brackets 4 positioned on either side of the shoe of the rail 1 so as to form a sliding axis allowing translational movements along the axis of the rail 1. According to a preferred embodiment but not limiting of the invention, the sliding of the portion of the track 2 relative to on the ground, or with respect to a fixed element on the ground, is maintained under the action of a lubrication or lubrication maintained by a lubrication system 10 integrated in the expansion device.

Par ailleurs, afin de permettre une éjection efficace d'obstacles qui seraient positionnés au niveau de la portion de voie 2, le dispositif de dilatation de l'invention est caractérisé en ce qu'au moins une des cornières 4 du dispositif est surmontée d'une ornière élastique 3 au niveau d'au moins une portion du rail 1.Moreover, in order to allow efficient ejection of obstacles that would be positioned at the portion of track 2, the expansion device of the invention is characterized in that at least one of the angles 4 of the device is surmounted by an elastic rut 3 at the level of at least a portion of the rail 1.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims (10)

Dispositif de dilatation d'un rail (1) adapté au guidage de roues d'au moins un véhicule sur une voie caractérisé en ce que le rail (1) comprend une portion de voie (2) continue formée par une pluralité de dégagements (5) successifs dans l'épaisseur du rail (1) selon des largeurs prédéfinies de dégagements (5) et disposés alternativement de part et d'autre du rail (1) dans des plans parallèles entre eux pour supprimer toute continuité axiale du rail (1) au niveau de la portion de voie (2).Device for dilating a rail (1) adapted to guide wheels of at least one vehicle on a track, characterized in that the rail (1) comprises a continuous track portion (2) formed by a plurality of clearances (5). ) successive in the thickness of the rail (1) in predefined clearance widths (5) and arranged alternately on either side of the rail (1) in planes parallel to each other to eliminate any axial continuity of the rail (1) at the portion of track (2). Dispositif de dilatation d'un rail selon la revendication 1, caractérisé en ce que le nombre de dégagements (5) successifs disposés au niveau de la portion de voie (2) est prédéfini en fonction du mouvement de dilatation à gérer.Device for dilating a rail according to claim 1, characterized in that the number of successive clearances (5) arranged at the channel portion (2) is predefined as a function of the expansion movement to be managed. Dispositif de dilatation d'un rail selon une des revendications précédentes, caractérisé en ce qu'au moins un dégagement (5) correspond à plus de soixante pour cent (60%) de la surface d'une section correspondante du rail (1).Device for expanding a rail according to one of the preceding claims, characterized in that at least one clearance (5) corresponds to more than sixty percent (60%) of the area of a corresponding section of the rail (1) . Dispositif de dilatation d'un rail selon une des revendications précédentes, caractérisé en ce que chacun des dégagements (5) est comblé par un élastomère adapté pour supporter les déformations d'écartement supportées par le dégagement (5).Device for dilating a rail according to one of the preceding claims, characterized in that each of the recesses (5) is filled by an elastomer adapted to support the spacing deformations supported by the clearance (5). Dispositif de dilatation selon une des revendications précédentes, caractérisé en ce que le dispositif comprend au moins un moyen de dérivation électrique (9) entre l'amont et l'aval de la portion de voie (2) continue du rail (1) du dispositif.Expansion device according to one of the preceding claims, characterized in that the device comprises at least one electrical branching means (9) between the upstream and downstream portions of the continuous track portion (2) of the rail (1) of the device . Dispositif de dilatation selon une des revendications précédentes, caractérisé en ce que le dispositif comprend des cavaliers (8) arrangés pour limiter l'ouverture d'un premier (n) dégagement (5) par positionnement d'une jambe dans chacun des dégagements (5) juxtaposés (n-1 ; n+ 1) au premier (n) dégagement (5).Expansion device according to one of the preceding claims, characterized in that the device comprises jumpers (8) arranged to limit the opening of a first (n) clearance (5) by positioning a leg in each of the recesses (5). ) juxtaposed (n-1; n + 1) at the first (n) clearance (5). Dispositif de dilatation selon au moins la revendication 6, caractérisé en ce que les jambes des cavaliers (8) sont positionnées dans des logements (6) adaptés dans leurs dégagements (5) respectifs.Expansion device according to at least claim 6, characterized in that the legs of the jumpers (8) are positioned in recesses (6) adapted in their respective recesses (5). Dispositif de dilatation selon une des revendications précédentes, caractérisé en ce que la portion de voie (2) continue du rail (1) est maintenue au sol par au moins une paire de cornières (4) positionnées de part et d'autre du patin du rail (1) de façon à former un axe de glissement autorisant des mouvements de translation selon l'axe du rail (1).Expansion device according to one of the preceding claims, characterized in that the continuous track portion (2) of the rail (1) is held on the ground by at least one pair of brackets (4) on either side of the runner of the rail (1) so as to form a sliding axis allowing translation movements along the axis of the rail (1). Dispositif de dilatation selon au moins la revendication 8, caractérisé en ce que le dispositif comprend un système de lubrification (10) de la portion (2) de rail (1) pour faciliter ses mouvements de translation par rapport à la surface du sol.Expansion device according to at least claim 8, characterized in that the device comprises a lubrication system (10) of the portion (2) of rail (1) to facilitate its translational movement relative to the ground surface. Dispositif de dilatation selon au moins la revendication 8, caractérisé en ce qu'au moins une des cornières (4) du dispositif est surmontée d'une ornière (3) au niveau d'au moins une portion (2) du rail (1).Expansion device according to at least Claim 8, characterized in that at least one of the angles (4) of the device is surmounted by a ridge (3) at at least a portion (2) of the rail (1) .
EP12305290.4A 2011-03-14 2012-03-13 Device for expansion of a guide rail Active EP2500468B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1152058A FR2972733B1 (en) 2011-03-14 2011-03-14 DEVICE FOR EXPANDING A GUIDE RAIL

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EP2500468A1 true EP2500468A1 (en) 2012-09-19
EP2500468B1 EP2500468B1 (en) 2016-01-13

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CN (1) CN102677554B (en)
FR (1) FR2972733B1 (en)

Cited By (3)

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FR3007430A1 (en) * 2013-06-25 2014-12-26 Newtl RAIL CROSSING PROVIDED FOR CROSSING A GUIDE RAIL WITH A SECOND RAIL.
EP3477004A1 (en) * 2017-10-25 2019-05-01 Jörg Beutler Rail system having expansion joint
WO2022258618A1 (en) * 2021-06-08 2022-12-15 Ocado Innovation Limited A track system for a storage and retrieval system

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN103669126B (en) * 2013-11-05 2015-01-07 彭学龙 Automatic adjustment connector for stretching of seamless rails

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GB191123859A (en) * 1910-12-17 1912-08-15 Erland Zell Improvements in Rails, especially Tramway Rails, for Preventing the Formation of Corrugations.
GB363538A (en) * 1930-02-05 1931-12-24 Albert Koenig An improved railway rail joint
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WO2010018310A1 (en) 2008-08-15 2010-02-18 Siemens Transportation Systems Sas Expansion device for a guide rail

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Publication number Priority date Publication date Assignee Title
GB191123859A (en) * 1910-12-17 1912-08-15 Erland Zell Improvements in Rails, especially Tramway Rails, for Preventing the Formation of Corrugations.
GB363538A (en) * 1930-02-05 1931-12-24 Albert Koenig An improved railway rail joint
DE583928C (en) * 1931-08-06 1933-09-12 Ver Stahlwerke Akt Ges Railway curvature rail
WO2010018310A1 (en) 2008-08-15 2010-02-18 Siemens Transportation Systems Sas Expansion device for a guide rail

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3007430A1 (en) * 2013-06-25 2014-12-26 Newtl RAIL CROSSING PROVIDED FOR CROSSING A GUIDE RAIL WITH A SECOND RAIL.
WO2014207339A1 (en) * 2013-06-25 2014-12-31 Newtl Rail crossing designed for crossing a guide rail with a second rail
US9963833B2 (en) 2013-06-25 2018-05-08 Newtl Rail crossing designed for crossing a guide rail with a second rail
EA029739B1 (en) * 2013-06-25 2018-05-31 Невтл Rail crossing designed for crossing a guide rail with a second rail
EP3477004A1 (en) * 2017-10-25 2019-05-01 Jörg Beutler Rail system having expansion joint
US11111634B2 (en) 2017-10-25 2021-09-07 Jörg Beutler Expansion joint construction and rail system having an expansion joint construction
WO2022258618A1 (en) * 2021-06-08 2022-12-15 Ocado Innovation Limited A track system for a storage and retrieval system
GB2609295A (en) * 2021-06-08 2023-02-01 Ocado Innovation Ltd A track system for a storage and retrieval system
GB2609295B (en) * 2021-06-08 2023-09-20 Ocado Innovation Ltd A track system for a storage and retrieval system

Also Published As

Publication number Publication date
CN102677554A (en) 2012-09-19
FR2972733A1 (en) 2012-09-21
EP2500468B1 (en) 2016-01-13
CN102677554B (en) 2016-08-03
FR2972733B1 (en) 2013-03-22

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