WO1996003547A1 - Device for attaching a track rail to a sleeper - Google Patents

Device for attaching a track rail to a sleeper Download PDF

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Publication number
WO1996003547A1
WO1996003547A1 PCT/FR1995/000983 FR9500983W WO9603547A1 WO 1996003547 A1 WO1996003547 A1 WO 1996003547A1 FR 9500983 W FR9500983 W FR 9500983W WO 9603547 A1 WO9603547 A1 WO 9603547A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
cavity
base
springs
section
Prior art date
Application number
PCT/FR1995/000983
Other languages
French (fr)
Inventor
Joël Cailliau
Valérian V. KOUPTSOV
Alexandre L. Lissitsine
Alexandre I. Kogan
Vladimir N. Sazonov
Original Assignee
Allevard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Allevard filed Critical Allevard
Publication of WO1996003547A1 publication Critical patent/WO1996003547A1/en
Priority to NO970189A priority Critical patent/NO970189L/en
Priority to SE9700137A priority patent/SE9700137L/en
Priority to FI970255A priority patent/FI970255A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
    • E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
    • E01B9/303—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips the clip being a shaped bar
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • E01B9/686—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with textured surface
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape

Definitions

  • the present invention relates to a device for fixing a railroad rail on a sleeper.
  • devices of this type include in particular on the one hand, a flexible support sole placed on the support table of the cross member and on which the base of the rail rests and, on the other hand, lateral fasteners formed springs in the form of a loop, retained in abutment on the rail by engagement of one of its branches in an insert anchored in the cross-member.
  • the fastener exerts on the rail an effort directed downwards and on the insert an effort directed upwards.
  • the elastic deformation of the fastener being a direct function of the positioning of the insert in the cross member, we can see that a variation in this positioning during the manufacture of the cross members will cause undesired variations in the bearing force on the rail.
  • the presence of an insert anchored in the cross member complicates the design of the cross member and can weaken the latter, in particular with respect to lateral forces in curves of small radius.
  • the present invention aims to solve these technical problems satisfactorily.
  • This object is achieved according to the invention by means of a device for fixing a railway rail to a cross member, comprising in particular a flexible support sole and lateral fasteners made up of loops, characterized in that said cross member comprises a longitudinal cavity in which the support sole is housed and in that said lateral fasteners are made up of springs comprising at least one helical loop intended to be pressed under tension by elastic deformation and locking of at least one section in abutment retained against the internal edges of said cavity and resting on the base of the rail.
  • the helical loop possibly includes several turns.
  • This design allows the production of very flexible attachment springs capable of cooperating with support soles of very low stiffness of the order of 20 kN / mm.
  • the attachment spring comprises a helical loop and two end sections, one of which is supported on the base of the rail and the other is supported on the internal wall of the cavity.
  • the attachment spring is symmetrical with respect to an axis transverse to the rail and comprises two helical loops separated by a connecting section intended to extend at least partially in bearing contact both against the internal edges of said cavity and on the base of the rail.
  • the connecting section can be straight or curved and is optionally connected to the helical loops by two elbows matching the edge of the base of the rail.
  • the upper part of the internal edges of said cavity is provided with a bulge projecting towards the inside of the mouth so as to define a lower locking bearing face for the end sections or the connection section of the springs.
  • the profile of the lower bearing face of the bulge matches that of the end section or the connecting section to allow a snap-fastening of the latter.
  • said cavity has inclined internal edges so as to form a narrowed mouth, the width of which is slightly greater than that of the base of the rail.
  • the upper part of the internal edges of said cavity protrudes above the level of the upper face of the crosspiece.
  • the internal face of said cavity is integral with a lining made up of a preferably metallic saddle and / or a layer of electrically insulating material; this layer can cover either the outer wall of the saddle or the inner wall of the cavity or saddle or any other combination; applied to the external wall of the saddle, it will guarantee good adhesion with the concrete and consequently, a satisfactory grip with the crosspiece.
  • the material will be chosen according to its friction characteristics.
  • a first possibility consists in making said springs in a loop with a rod of circular or quadrilateral section.
  • Another possibility consists in making said springs in a loop with a blade of parallelepipedic section, from flat steel strip.
  • the result of the support forces of the springs on the base of the rail is inclined at an angle between 20 * and 60 * relative to the vertical.
  • this result of the forces is collected by the inclined internal face of the cavity.
  • Another object of the invention is a method of mounting a rail fixing device of the preceding type, characterized in that the stiffness, geometry and dimensions of the springs are chosen beforehand mainly as a function of the thickness and the flexibility of the support sole so as to obtain support for the fasteners on the base of the rail according to a result inclined with respect to the vertical by an angle between 20 * and 60 * by tensioning and locking the springs in said cavity.
  • the device of the invention is symmetrical with respect to the median transverse axis of the rail and therefore has better efficiency. Furthermore, the mounting of the fasteners is very easy and eliminates the presence of an additional part such as an insert.
  • the bearing force on the rail obtained by elastic deformation of the attachment spring depends only on the geometry of the cavity and is therefore independent of the positioning accuracy of this cavity relative to the cross-member; this ensuring excellent consistency of the support force.
  • the longitudinal cavity intended for housing the rail and for locking the fasteners can be produced as soon as the crossmember is manufactured.
  • the cavity is provided with a lining comprising a metal saddle, the specific geometry of the cavity guarantees reliable anchoring of the support table in the cross-member.
  • FIG. la and lb show side views in partial longitudinal section along lines la and lb of the device of the invention respectively according to two embodiments;
  • - Figure 2 shows a cross-sectional view of the device of the invention according to line II— II; the left part corresponding to the embodiment of Figure la and the right part to that of Figure lb;
  • - Figure 3 shows a half-view in vertical section of a second embodiment of the invention;
  • FIG. 4 shows a half-view in vertical section of a third embodiment with the fastener before mounting
  • FIG. 5 shows a half-view in vertical section of the embodiment of Figure 4 with the fastener in the mounted position
  • FIG. 8 shows a sectional view of yet another embodiment of the invention.
  • FIGS. 1a and 1b in side view, is intended for fixing the rail R on a cross-member T generally made of concrete by means of loop fasteners 1.
  • the cross-member T comprises a longitudinal cavity 2 in which is housed the flexible support sole 3 of the base of the rail R.
  • the cavity 2 is formed over the entire width of the cross-member T.
  • the flexibility and the thickness of the sole 3 are determined so that the depression in the passage of the rolling loads creates a clearance allowing the possible rotation of the rail in particular in the curves. This rotation is however advantageously limited thanks to the reestablishment of a contact of the end section 12 or of the connecting section 11 with the internal wall of the cavity 2.
  • the lateral fasteners consist of springs 1, preferably metallic, comprising at least one helical loop 10 with one or more turns 100.
  • the loops 10 are deformed elastically to create the bearing force on the base of the rail R. This support is achieved by tensioning the loops 10 and is maintained by locking the end sections 12 in retaining stop against the internal edges 20 of the cavity 2.
  • the tendency of the loop to relax produces a forced support of at least minus one section against edge B of the rail.
  • the quality of the contact between the end sections 11 and the internal edges 20 of the cavity 2 is improved by integrally covering the walls and in particular the internal edges 20 with a lining 21 consisting of a preferably metallic saddle and / or a layer of a suitable material having good electrical insulation properties.
  • This layer can coat either the outer wall of the saddle or the inner wall of the cavity 2 or of the metal saddle or any other combination. Applied to the external wall of the saddle (see Figure 8), it will guarantee, thanks to good adhesion properties, a satisfactory bonding connection with the concrete of the cross-member T while applied to the internal wall of the cavity or saddle, it will participate in friction phenomena.
  • the attachment springs 1 are symmetrical with respect to an axis transverse to the rail and comprise two helical loops 10 separated by a connecting section 11 intended to extend at least partially in bearing contact with the internal edges 20 of the wall of the cavity 2 or of the lining 21.
  • the connecting section 11 can be rectilinear as shown in FIGS. 1b and 2 (right part) by matching the lateral edge B of the base of the rail R.
  • the connecting section 11 is connected to the helical loops 10 by two elbows 110 which, in the absence of rolling loads, are in contact with the internal edges 20.
  • the connecting section 11 forms thus a spacer for wedging the rail by contact with the internal edges 20 and the flange B of the rail R.
  • the end section 12 is rectilinear and extends in contact with the internal edges 20 over its whole long ur. In this position, the end section is without contact with the rail in its mounting position.
  • the connecting section 11 can also be curved as shown in FIGS. 1a and 2 (left part). In this case, the connecting section 11 is spaced from the edge B of the rail R but makes contact over its entire length with the internal edges 20 of the cavity 2; the end section 12, for its part, is curved so as to fit in contact with support the edge B of the rail R.
  • This bearing force is exerted on the rail via the bent parts of the end sections 12 (FIG. 1a) or via the elbows 110 of the connecting section 11 (FIG. 1b); this support effort on the rail is balanced by a reaction force of the connecting section 11 or the end sections 12 on the internal edges 20.
  • the cavity 2 has internal edges 20 inclined so as to form a narrowed mouth, the width of which is slightly greater than that of the base of the rail R, which makes it possible to position the rail on the sole 3 with good precision.
  • the upper part of the internal edges 20 of the cavity 2 is provided with a bulge 22.
  • This bulge projects towards the inside of the mouth so as to define a lower bearing face
  • the end sections 12a, 12b snap into the cavity 2 between the flange B of the rail R and the bulge 22 and thus remain in retaining abutment against the lower bearing face 22a whose profile matches that of the end sections.
  • FIG. 4 represents a fastening spring 1 before mounting in the cavity 2.
  • the loop is here produced with a square quadrilateral section.
  • the connecting section 11 rests on the upper part of the internal edges 20 of the cavity 2 while the end section 12 rests on the flange B of the base of the rail R.
  • the upper part of the internal edges 20 has an inclined face 23 extending up to the bulge 22 which can protrude above the level of the upper face of the cross-member.
  • the inclined face 23 ensures the sliding contact of the connecting section 11 of the spring 1 by pressing on the loop 10 in the direction F towards the inside of the cavity 2 until it comes to lock by snap-fastening under the bulge 22 in contact with the lower support face 22a.
  • the end section 12 slides on the base of the rail R towards the interior of the cavity 2 in order to come to lock in abutment between the internal edges 20 and the flange B of said base as shown in FIG. 5.
  • FIG. 6 shows another embodiment in which the upper part of the internal edges 20 has a rounded edge 24 overhanging a hollow housing 25 intended to receive the connecting section 11 for locking it by snap-fastening after sliding and elastic deformation in contact with the ledge 24.
  • Figure 7 is to be compared to Figure 4 and shows yet another embodiment in which the end section 12 is locked by first undergoing an elastic deformation in contact with the inclined face 23 located at the upper part of the edges internal 20 then by snap-fastening under the bulge 22 in contact with the lower support face 22a.
  • FIG. 8 represents yet another embodiment of the invention in which the helical loop 10 is metric and has a first end section 12a bearing on the base of the rail R by marrying its rim B and a second section d end 12b resting against the internal edge 20 of the cavity 2.
  • the loop 10 is produced from strip steel and the layer of electrically insulating material is applied to the external wall of the garnish
  • the direction of the result of the support forces of the loops 10 of the springs 1 on the base of the rail R is inclined by an angle ⁇ of between 20 * and 60 * relative to the vertical.
  • the rail fixing device is assembled by choosing beforehand the stiffness, the geometry and the dimensions of the fastening springs 1 in a loop 10 mainly as a function of the thickness and flexibility of the support sole 3 so as to obtain a bearing force of the springs on the base of the rail R, directed according to a result inclined at an angle ⁇ relative to the vertical by tensioning and locking the loops 10 in the cavity 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)

Abstract

A device for attaching a track rail (R) to a sleeper (T), including a flexible supporting base (3) and side clamps consisting of loops (10). Said sleeper (T) comprises a longitudinal recess (2) in which the supporting base (3) is fitted, and said side clamps (1) consist of springs with at least one helical loop (10) designed to be resiliently tensioned and locked by means of at least one section in retaining abutment with the inner edges (20) of said recess (2) and in bearing engagement with the flange of the rail (R).

Description

DISPOSITIF DE FIXATION D' UN RAIL DE CHEMIN DE FER SUR UNE TRAVERSEDEVICE FOR FIXING A RAILWAY RAIL ON A CROSSBAR
La présente invention concerne un dispositif de fixation d'un rail de chemin de fer sur une traverse.The present invention relates to a device for fixing a railroad rail on a sleeper.
De manière générale, les dispositifs de ce type comprennent notamment d'une part, une semelle souple de support placée sur la table d'appui de la traverse et sur laquelle repose la base du rail et, d'autre part, des attaches latérales constituées de ressorts sous forme d'une boucle, retenue en appui sur le rail par engagement de l'une de ses branches dans un insert ancré dans la traverse.In general, devices of this type include in particular on the one hand, a flexible support sole placed on the support table of the cross member and on which the base of the rail rests and, on the other hand, lateral fasteners formed springs in the form of a loop, retained in abutment on the rail by engagement of one of its branches in an insert anchored in the cross-member.
Par déformation élastique, l'attache exerce sur le rail un effort dirigé vers le bas et sur l'insert un effort dirigé vers le haut.By elastic deformation, the fastener exerts on the rail an effort directed downwards and on the insert an effort directed upwards.
La déformation élastique de l'attache étant directement fonction du positionnement de l'insert dans la traverse, on s'aperçoit qu'une variation de ce positionnement lors de la fabrication des traverses entraînera des variations non souhaitées de l'effort d'appui sur le rail. De plus, la présence d'un insert ancré dans la traverse complique la conception de la traverse et peut fragiliser cette dernière, notamment vis-à-vis des efforts latéraux dans les courbes de faible rayon.The elastic deformation of the fastener being a direct function of the positioning of the insert in the cross member, we can see that a variation in this positioning during the manufacture of the cross members will cause undesired variations in the bearing force on the rail. In addition, the presence of an insert anchored in the cross member complicates the design of the cross member and can weaken the latter, in particular with respect to lateral forces in curves of small radius.
La présente invention a pour but de résoudre ces problèmes techniques de manière satisfaisante. Ce but est atteint selon l'invention au moyen d'un dispositif de fixation d'un rail de chemin de fer sur une traverse, comprenant notamment une semelle souple de support et des attaches latérales constituées de boucles, caractérisé en ce que ladite traverse comporte une cavité longitudinale dans laquelle est logée la semelle de support et en ce que lesdites attaches latérales sont constituées de ressorts comportant au moins une boucle hélicoïdale destinée à être mise en appui sous tension par déformation élastique et verrouillage d'au moins un tronçon en butée de retenue contre les bords internes de ladite cavité et en appui sur la base du rail. La boucle hélicoïdale comporte éventuellement plusieurs spires.The present invention aims to solve these technical problems satisfactorily. This object is achieved according to the invention by means of a device for fixing a railway rail to a cross member, comprising in particular a flexible support sole and lateral fasteners made up of loops, characterized in that said cross member comprises a longitudinal cavity in which the support sole is housed and in that said lateral fasteners are made up of springs comprising at least one helical loop intended to be pressed under tension by elastic deformation and locking of at least one section in abutment retained against the internal edges of said cavity and resting on the base of the rail. The helical loop possibly includes several turns.
Cette conception permet la réalisation de ressorts d'attache très souples aptes à coopérer avec des semelles de support de très faible raideur de l'ordre de 20 kN/mm.This design allows the production of very flexible attachment springs capable of cooperating with support soles of very low stiffness of the order of 20 kN / mm.
Selon une caractéristique avantageuse, au moins l'un des tronçons d'extrémité des attaches est cintré pour épouser en contact d'appui, le rebord de la base du rail. Selon une première variante de réalisation, le ressort d'attache comporte une boucle hélicoïdale et deux tronçons d'extrémité dont l'un est en appui sur la base du rail et l'autre en appui sur la paroi interne de la cavité. Selon une variante préférentielle de réalisation, le ressort d'attache est symétrique par rapport à un axe transversal au rail et comporte deux boucles hélicoïdales séparées par un tronçon de liaison destiné à s'étendre au moins partiellement en contact d'appui à la fois contre les bords internes de ladite cavité et sur la base du rail. Le tronçon de liaison peut être rectiligne ou courbe et se raccorde éventuellement aux boucles hélicoïdales par deux coudes épousant le rebord de la base du rail.According to an advantageous characteristic, at least one of the end sections of the fasteners is bent to match in contact with support, the edge of the base of the rail. According to a first alternative embodiment, the attachment spring comprises a helical loop and two end sections, one of which is supported on the base of the rail and the other is supported on the internal wall of the cavity. According to a preferred alternative embodiment, the attachment spring is symmetrical with respect to an axis transverse to the rail and comprises two helical loops separated by a connecting section intended to extend at least partially in bearing contact both against the internal edges of said cavity and on the base of the rail. The connecting section can be straight or curved and is optionally connected to the helical loops by two elbows matching the edge of the base of the rail.
Selon une autre caractéristique, la partie supérieure des bords internes de ladite cavité est pourvu d'un renflement faisant saillie vers l'intérieur de l'embouchure de façon à définir une face d'appui inférieure de verrouillage pour les tronçons d'extrémité ou le tronçon de liaison des ressorts.According to another characteristic, the upper part of the internal edges of said cavity is provided with a bulge projecting towards the inside of the mouth so as to define a lower locking bearing face for the end sections or the connection section of the springs.
En outre, le profil de la face d'appui inférieure du renflement épouse celui du tronçon d'extrémité ou du tronçon de liaison pour permettre un encliquetage de ce dernier.In addition, the profile of the lower bearing face of the bulge matches that of the end section or the connecting section to allow a snap-fastening of the latter.
Selon une variante, ladite cavité comporte des bords internes inclinés de façon à former une embouchure rétrécie dont la largeur est légèrement supérieure à celle de la base du rail.According to a variant, said cavity has inclined internal edges so as to form a narrowed mouth, the width of which is slightly greater than that of the base of the rail.
Eventuellement, la partie supérieure des bords internes de ladite cavité fait saillie au-dessus du niveau de la face supérieure de la traverse.Optionally, the upper part of the internal edges of said cavity protrudes above the level of the upper face of the crosspiece.
De préférence, la face interne de ladite cavité est solidaire d'une garniture constituée d'une selle de préférence métallique et/ou d'une couche de matériau électriquement isolant ; cette couche peut revêtir soit la paroi externe de la selle soit la paroi interne de la cavité ou de la selle ou encore toute autre combinaison ; appliquée sur la paroi externe de la selle, elle garantira une bonne adhérence avec le béton et par suite, un accrochage satisfaisant avec la traverse. Pour être appliquée sur la paroi interne de la cavité ou de la selle, le matériau sera choisi en fonction de ses caractéristiques de frottement. Une première possibilité consiste à réaliser lesdits ressorts en boucle avec une tige de section circulaire ou quadrilatère.Preferably, the internal face of said cavity is integral with a lining made up of a preferably metallic saddle and / or a layer of electrically insulating material; this layer can cover either the outer wall of the saddle or the inner wall of the cavity or saddle or any other combination; applied to the external wall of the saddle, it will guarantee good adhesion with the concrete and consequently, a satisfactory grip with the crosspiece. To be applied to the internal wall of the cavity or saddle, the material will be chosen according to its friction characteristics. A first possibility consists in making said springs in a loop with a rod of circular or quadrilateral section.
Une autre possibilité consiste à réaliser lesdits ressorts en boucle avec une lame de section parallélépipédique, à partir d'acier plat en bande.Another possibility consists in making said springs in a loop with a blade of parallelepipedic section, from flat steel strip.
Selon encore une autre caractéristique, la résultante des forces d'appui des ressorts sur la base du rail est inclinée d'un angle compris entre 20* et 60* par rapport à la verticale. Par réaction, cette résultante des forces est encaissée par la face interne inclinée de la cavité. Un autre objet de l'invention est un procédé de montage d'un dispositif de fixation de rail du type précédent, caractérisé en ce qu'on choisit au préalable la raideur, la géométrie et les dimensions des ressorts principalement en fonction de l'épaisseur et de la souplesse de la semelle de support de façon à obtenir un appui des attaches sur la base du rail selon une résultante inclinée par rapport à la verticale d'un angle compris entre 20* et 60* par mise sous tension et verrouillage des ressorts dans ladite cavité.According to yet another characteristic, the result of the support forces of the springs on the base of the rail is inclined at an angle between 20 * and 60 * relative to the vertical. By reaction, this result of the forces is collected by the inclined internal face of the cavity. Another object of the invention is a method of mounting a rail fixing device of the preceding type, characterized in that the stiffness, geometry and dimensions of the springs are chosen beforehand mainly as a function of the thickness and the flexibility of the support sole so as to obtain support for the fasteners on the base of the rail according to a result inclined with respect to the vertical by an angle between 20 * and 60 * by tensioning and locking the springs in said cavity.
Le dispositif de l'invention est symétrique par rapport à l'axe transversal médian du rail et possède de ce fait une meilleure efficacité. Par ailleurs, le montage des attaches est très facile et s'affranchit de la présence d'une pièce supplémentaire tel qu'un insert. L'effort d'appui sur le rail obtenu par déformation élastique du ressort d'attache ne dépend que de la géométrie de la cavité et est donc indépendant de la précision de positionnement de cette cavité par rapport à la traverse ; ceci garantissant une excellente constance de l'effort d'appui.The device of the invention is symmetrical with respect to the median transverse axis of the rail and therefore has better efficiency. Furthermore, the mounting of the fasteners is very easy and eliminates the presence of an additional part such as an insert. The bearing force on the rail obtained by elastic deformation of the attachment spring depends only on the geometry of the cavity and is therefore independent of the positioning accuracy of this cavity relative to the cross-member; this ensuring excellent consistency of the support force.
La cavité longitudinale destinée au logement du rail et au verrouillage des attaches peut être réalisée dès la fabrication de la traverse. Lorsque la cavité est pourvue d'une garniture comprenant une selle métallique, la géométrie spécifique de la cavité garantit un ancrage fiable de la table d'appui dans la traverse.The longitudinal cavity intended for housing the rail and for locking the fasteners can be produced as soon as the crossmember is manufactured. When the cavity is provided with a lining comprising a metal saddle, the specific geometry of the cavity guarantees reliable anchoring of the support table in the cross-member.
La présente invention sera mieux comprise à la lecture de la description qui va suivre, accompagnée des dessins sur lesquels :The present invention will be better understood on reading the description which follows, accompanied by the drawings in which:
- les figures la et lb représentent des vues latérales en coupe longitudinale partielle selon les lignes la et lb du dispositif de l'invention respectivement selon deux modes de réalisation ; - la figure 2 représente une vue en coupe transversale du dispositif de l'invention selon la ligne II— II ; la partie gauche correspondant au mode de réalisation de la figure la et la partie droite à celui de la figure lb ; - la figure 3 représente une demi-vue en coupe verticale d'un second mode de réalisation de l'invention ;- Figures la and lb show side views in partial longitudinal section along lines la and lb of the device of the invention respectively according to two embodiments; - Figure 2 shows a cross-sectional view of the device of the invention according to line II— II; the left part corresponding to the embodiment of Figure la and the right part to that of Figure lb; - Figure 3 shows a half-view in vertical section of a second embodiment of the invention;
- la figure 4 représente une demi-vue en coupe verticale d'un troisième mode de réalisation avec l'attache avant montage ;- Figure 4 shows a half-view in vertical section of a third embodiment with the fastener before mounting;
- la figure 5 représente une demi-vue en coupe verticale du mode de réalisation de la figure 4 avec l'attache en position montée ;- Figure 5 shows a half-view in vertical section of the embodiment of Figure 4 with the fastener in the mounted position;
- les figures 6 et 7 représentent des demi-vues en coupe verticale de deux autres modes de réalisation de l'invention avec les attaches en position montée ; et,- Figures 6 and 7 show half-views in vertical section of two other embodiments of the invention with the fasteners in the assembled position; and,
- la figure 8 représente une vue en coupe d'encore un autre mode de réalisation de l'invention.- Figure 8 shows a sectional view of yet another embodiment of the invention.
Le dispositif de l'invention représenté sur les figures la et lb, en vue latérale, est destiné à la fixation du rail R sur une traverse T généralement en béton au moyen d'attaches en boucles 1.The device of the invention shown in FIGS. 1a and 1b, in side view, is intended for fixing the rail R on a cross-member T generally made of concrete by means of loop fasteners 1.
Selon l'invention, la traverse T comporte une cavité longitudinale 2 dans laquelle est logée la semelle souple de support 3 de la base du rail R. La cavité 2 est ménagée sur toute la largeur de la traverse T. La souplesse et l'épaisseur de la semelle 3 sont déterminées de façon à ce que l'enfoncement au passage des charges roulantes crée un jeu permettant la rotation éventuelle du rail notamment dans les courbes. Cette rotation est cependant avantageusement limitée grâce au rétablissement d'un contact du tronçon d'extrémité 12 ou du tronçon de liaison 11 avec la paroi interne de la cavité 2.According to the invention, the cross-member T comprises a longitudinal cavity 2 in which is housed the flexible support sole 3 of the base of the rail R. The cavity 2 is formed over the entire width of the cross-member T. The flexibility and the thickness of the sole 3 are determined so that the depression in the passage of the rolling loads creates a clearance allowing the possible rotation of the rail in particular in the curves. This rotation is however advantageously limited thanks to the reestablishment of a contact of the end section 12 or of the connecting section 11 with the internal wall of the cavity 2.
Les attaches latérales sont constituées de ressorts 1 de préférence métalliques, comportant au moins une boucle hélicoïdale 10 à une ou plusieurs spires 100. Les boucles 10 sont déformées de façon élastique pour créer l'effort d'appui sur la base du rail R. Cet appui est réalisé par mise sous tension des boucles 10 et est maintenu par verrouillage des tronçons d'extrémité 12 en butée de retenue contre les bords internes 20 de la cavité 2. La tendance de la boucle à se détendre produit un appui forcé d'au moins un tronçon contre le rebord B du rail. La qualité du contact entre les tronçons d'extrémité 11 et les bords internes 20 de la cavité 2 est amélioré en recouvrant de manière solidaire les parois et notamment les bords internes 20 avec une garniture 21 constituée d'une selle de préférence métallique et/ou d'une couche d'un matériau approprié possédant de bonnes propriétés d'isolation électrique. Cette couche peut révêtir soit la paroi externe de la selle soit la paroi interne de la cavité 2 ou de la selle métallique ou toute autre combinaison. Appliquée sur la paroi externe de la selle (voir figure 8), elle garantira, grâce à de bonnes propriétés d'adhérence, une liaison d'accrochage satisfaisante avec le béton de la traverse T tandis qu'appliquée sur la paroi interne de la cavité ou de la selle, elle participera aux phénomènes de friction.The lateral fasteners consist of springs 1, preferably metallic, comprising at least one helical loop 10 with one or more turns 100. The loops 10 are deformed elastically to create the bearing force on the base of the rail R. This support is achieved by tensioning the loops 10 and is maintained by locking the end sections 12 in retaining stop against the internal edges 20 of the cavity 2. The tendency of the loop to relax produces a forced support of at least minus one section against edge B of the rail. The quality of the contact between the end sections 11 and the internal edges 20 of the cavity 2 is improved by integrally covering the walls and in particular the internal edges 20 with a lining 21 consisting of a preferably metallic saddle and / or a layer of a suitable material having good electrical insulation properties. This layer can coat either the outer wall of the saddle or the inner wall of the cavity 2 or of the metal saddle or any other combination. Applied to the external wall of the saddle (see Figure 8), it will guarantee, thanks to good adhesion properties, a satisfactory bonding connection with the concrete of the cross-member T while applied to the internal wall of the cavity or saddle, it will participate in friction phenomena.
Dans le mode de réalisation des figures la,lb et 2, les ressorts d'attaches 1 sont symétriques par rapport à un axe transversal au rail et comportent deux boucles hélicoïdales 10 séparées par un tronçon de liaison 11 destiné à s'étendre au moins partiellement en contact d'appui avec les bords internes 20 de la paroi de la cavité 2 ou de la garniture 21. Le tronçon de liaison 11 peut être rectiligne comme représenté sur les figures lb et 2 (partie droite) en épousant le rebord latéral B de la base du rail R. Dans ce cas, le tronçon de liaison 11 se raccorde aux boucles hélicoïdales 10 par deux coudes 110 qui, en l'absence de charges roulantes, sont en contact avec les bords internes 20. Le tronçon de liaison 11 forme ainsi une entretoise de calage du rail par contact avec les bords internes 20 et le rebord B du rail R. Toujours selon ce mode de réalisation, le tronçon d'extrémité 12 est rectiligne et s'étend au contact des bords internes 20 sur toute sa longueur. Dans cette position, le tronçon d'extrémité est sans contact avec le rail dans sa position de montage. Le tronçon de liaison 11 peut aussi être courbe comme représenté sur les figures la et 2 (partie gauche). Dans ce cas, le tronçon de liaison 11 est écarté du rebord B du rail R mais prend contact sur toute sa longueur avec les bords internes 20 de la cavité 2 ; le tronçon d'extrémité 12, est quant à lui, cintré pour épouser en contact d'appui le rebord B du rail R.In the embodiment of FIGS. 1a, 1b and 2, the attachment springs 1 are symmetrical with respect to an axis transverse to the rail and comprise two helical loops 10 separated by a connecting section 11 intended to extend at least partially in bearing contact with the internal edges 20 of the wall of the cavity 2 or of the lining 21. The connecting section 11 can be rectilinear as shown in FIGS. 1b and 2 (right part) by matching the lateral edge B of the base of the rail R. In this case, the connecting section 11 is connected to the helical loops 10 by two elbows 110 which, in the absence of rolling loads, are in contact with the internal edges 20. The connecting section 11 forms thus a spacer for wedging the rail by contact with the internal edges 20 and the flange B of the rail R. Still according to this embodiment, the end section 12 is rectilinear and extends in contact with the internal edges 20 over its whole long ur. In this position, the end section is without contact with the rail in its mounting position. The connecting section 11 can also be curved as shown in FIGS. 1a and 2 (left part). In this case, the connecting section 11 is spaced from the edge B of the rail R but makes contact over its entire length with the internal edges 20 of the cavity 2; the end section 12, for its part, is curved so as to fit in contact with support the edge B of the rail R.
Cet effort d'appui s'exerce sur le rail via les parties coudées des tronçons d'extrémité 12 (figure la) ou via les coudes 110 du tronçon de liaison 11 (figure lb) ; cet effort d'appui sur le rail est équilibré par un effort de réaction du tronçon de liaison 11 ou des tronçons d'extrémité 12 sur les bords internes 20.This bearing force is exerted on the rail via the bent parts of the end sections 12 (FIG. 1a) or via the elbows 110 of the connecting section 11 (FIG. 1b); this support effort on the rail is balanced by a reaction force of the connecting section 11 or the end sections 12 on the internal edges 20.
La cavité 2 comporte des bords internes 20 inclinés de façon à former une embouchure rétrécie dont la largeur est légèrement supérieure à celle de la base du rail R, ce qui permet de positionner avec une bonne précision le rail sur la semelle 3.The cavity 2 has internal edges 20 inclined so as to form a narrowed mouth, the width of which is slightly greater than that of the base of the rail R, which makes it possible to position the rail on the sole 3 with good precision.
Dans le mode de réalisation du dispositif de l'invention, tel que représenté sur la figure 3, la partie supérieure des bords internes 20 de la cavité 2 est pourvue d'un renflement 22. Ce renflement fait saillie vers l'intérieur de l'embouchure de façon à définir une face d'appui inférieureIn the embodiment of the device of the invention, as shown in FIG. 3, the upper part of the internal edges 20 of the cavity 2 is provided with a bulge 22. This bulge projects towards the inside of the mouth so as to define a lower bearing face
22a de verrouillage pour les tronçons d'extrémité 12a,12b.22a for locking the end sections 12a, 12b.
Après déformation élastique de la boucle 10, les tronçons d'extrémité 12a,12b viennent s'encliqueter dans la cavité 2 entre le rebord B du rail R et le renflement 22 et restent ainsi en butée de retenue contre la face d'appui inférieure 22a dont le profil épouse celui des tronçons d'extrémité.After elastic deformation of the loop 10, the end sections 12a, 12b snap into the cavity 2 between the flange B of the rail R and the bulge 22 and thus remain in retaining abutment against the lower bearing face 22a whose profile matches that of the end sections.
La figure 4 représente un ressort d'attache 1 avant montage dans la cavité 2. La boucle est ici réalisée avec une section quadrilatère carrée.FIG. 4 represents a fastening spring 1 before mounting in the cavity 2. The loop is here produced with a square quadrilateral section.
Le tronçon de liaison 11 repose sur la partie supérieure des bords internes 20 de la cavité 2 tandis que le tronçon d'extrémité 12 repose sur le rebord B de la base du rail R.The connecting section 11 rests on the upper part of the internal edges 20 of the cavity 2 while the end section 12 rests on the flange B of the base of the rail R.
La partie supérieure des bords interne 20 possède une face inclinée 23 s'étendant jusqu'au renflement 22 pouvant faire saillie au-dessus du niveau de la face supérieure de la traverse. La face inclinée 23 assure le contact de glissement du tronçon de liaison 11 du ressort 1 par appui sur la boucle 10 selon la direction F vers l'intérieur de la cavité 2 jusqu'à ce qu'il vienne se verrouiller par encliquetage sous le renflement 22 au contact de la face inférieure d'appui 22a.The upper part of the internal edges 20 has an inclined face 23 extending up to the bulge 22 which can protrude above the level of the upper face of the cross-member. The inclined face 23 ensures the sliding contact of the connecting section 11 of the spring 1 by pressing on the loop 10 in the direction F towards the inside of the cavity 2 until it comes to lock by snap-fastening under the bulge 22 in contact with the lower support face 22a.
Simultanément, le tronçon d'extrémité 12 glisse sur la base du rail R vers l'intérieur de la cavité 2 pour venir se verrouiller en butée entre les bords internes 20 et le rebord B de ladite base comme représenté sur la figure 5.Simultaneously, the end section 12 slides on the base of the rail R towards the interior of the cavity 2 in order to come to lock in abutment between the internal edges 20 and the flange B of said base as shown in FIG. 5.
La boucle 10 est alors sous tension et crée l'effort d'appui sur le rail via la partie coudée du tronçon d'extrémité 12. Le tronçon de liaison est en appui local sur une face inclinée 26 située en retrait par rapport au prolongement longitudinal de la partie supérieure à renflement 22. La figure 6 représente un autre mode de réalisation dans lequel la partie supérieure des bords internes 20 comporte un rebord arrondi 24 surplombant un logement en creux 25 destiné à recevoir le tronçon de liaison 11 pour le verrouiller par encliquetage après glissement et déformation élastique au contact du rebord 24.The loop 10 is then under tension and creates the bearing force on the rail via the bent part of the end section 12. The connecting section is in local support on an inclined face 26 located back from the longitudinal extension of the upper part with bulge 22. FIG. 6 shows another embodiment in which the upper part of the internal edges 20 has a rounded edge 24 overhanging a hollow housing 25 intended to receive the connecting section 11 for locking it by snap-fastening after sliding and elastic deformation in contact with the ledge 24.
La figure 7 est à rapprocher de la figure 4 et représente encore un autre mode de réalisation dans lequel le tronçon d'extrémité 12 est verrouillé en subissant d'abord une déformation élastique au contact de la face inclinée 23 située à la partie supérieure des bords interne 20 puis par encliquetage sous le renflement 22 au contact de la face inférieure d'appui 22a.Figure 7 is to be compared to Figure 4 and shows yet another embodiment in which the end section 12 is locked by first undergoing an elastic deformation in contact with the inclined face 23 located at the upper part of the edges internal 20 then by snap-fastening under the bulge 22 in contact with the lower support face 22a.
Le tronçon de liaison 11 est, quant à lui, coincé dans la cavité 2 entre le rebord B de la base du rail R et les bords interne 20 en épousant ledit rebord B par les coudes 110 (voir figure 2 partie droite). La figure 8 représente encore un autre mode de réalisation de l'invention dans lequel la boucle hélicoïdale 10 est disy métrique et comporte un premier tronçon d'extrémité 12a en appui sur la base du rail R en épousant son rebord B et un second tronçon d'extrémité 12b en appui contre le bord interne 20 de la cavité 2. De préférence, dans ce mode de réalisation, la boucle 10 est réalisée à partir d'acier plat en bande et la couche de matériau électriquement isolant est appliquée sur la paroi externe de la garnitureThe connecting section 11 is, for its part, wedged in the cavity 2 between the flange B of the base of the rail R and the internal edges 20 by marrying said flange B by the elbows 110 (see FIG. 2 on the right). FIG. 8 represents yet another embodiment of the invention in which the helical loop 10 is metric and has a first end section 12a bearing on the base of the rail R by marrying its rim B and a second section d end 12b resting against the internal edge 20 of the cavity 2. Preferably, in this embodiment, the loop 10 is produced from strip steel and the layer of electrically insulating material is applied to the external wall of the garnish
21 en contact avec le béton de la traverse T pour améliorer l'accrochage.21 in contact with the concrete of the crosspiece T to improve the attachment.
Dans tous les modes de réalisation représentés, la direction de la résultante des forces d'appui des boucles 10 des ressorts 1 sur la base du rail R est inclinée d'un angle α compris entre 20* et 60* par rapport à la verticale.In all the embodiments shown, the direction of the result of the support forces of the loops 10 of the springs 1 on the base of the rail R is inclined by an angle α of between 20 * and 60 * relative to the vertical.
Le dispositif de fixation du rail est assemblé en choisissant au préalable, la raideur, la géométrie et les dimensions des ressorts d'attache 1 en boucle 10 principalement en fonction de l'épaisseur et de la souplesse de la semelle 3 de support de façon à obtenir un effort d'appui des ressorts sur la base du rail R, dirigé selon une résultante inclinée d'un angle α par rapport à la verticale par mise sous tension et verrouillage des boucles 10 dans la cavité 2. The rail fixing device is assembled by choosing beforehand the stiffness, the geometry and the dimensions of the fastening springs 1 in a loop 10 mainly as a function of the thickness and flexibility of the support sole 3 so as to obtain a bearing force of the springs on the base of the rail R, directed according to a result inclined at an angle α relative to the vertical by tensioning and locking the loops 10 in the cavity 2.

Claims

REVENDICATIONS
1. Dispositif de fixation d'un rail (R) de chemin de fer sur une traverse (T), comprenant notamment une semelle souple (3) de support et des attaches latérales constituées de boucles (10), caractérisé en ce que ladite traverse (T) comporte une cavité longitudinale (2) dans laquelle est logée la semelle de support (3) et en ce que lesdites attaches latérales (1) sont constituées de ressorts comportant au moins une boucle hélicoïdale (10) destinée à être mise sous tension par déformation élastique et verrouillage d'au moins un tronçon en butée de retenue contre les bords internes (20) de ladite cavité (2) et en appui sur la base du rail R.1. Device for fixing a rail (R) of a railway on a crosspiece (T), comprising in particular a flexible sole (3) for support and lateral fasteners constituted by loops (10), characterized in that said crosspiece (T) comprises a longitudinal cavity (2) in which is housed the support sole (3) and in that said lateral fasteners (1) consist of springs comprising at least one helical loop (10) intended to be tensioned by elastic deformation and locking of at least one section in retaining abutment against the internal edges (20) of said cavity (2) and bearing on the base of the rail R.
2. Dispositif selon la revendication 1, caractérisé en ce qu'au moins l'un des tronçons d'extrémité (12) des attaches (1) est cintré pour épouser en contact d'appui le rebord (B) de la base du rail (R). 2. Device according to claim 1, characterized in that at least one of the end sections (12) of the fasteners (1) is curved so as to marry in contact with support the flange (B) of the base of the rail (R).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que lesdits ressorts d'attache comportent une boucle hélicoïdale (10) et deux tronçons d'extrémité (12a,12b) dont l'un (12a) est en appui sur la base du rail (R) et l'autre (12b) en appui contre le bord interne (20) de la cavité (2). 3. Device according to claim 1 or 2, characterized in that said attachment springs comprise a helical loop (10) and two end sections (12a, 12b) one of which (12a) is supported on the base of the rail (R) and the other (12b) bearing against the internal edge (20) of the cavity (2).
4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les ressorts d'attache (1) sont symétriques par rapport à un axe transversal au rail R et comportent deux boucles hélicoïdales (10) séparées par un tronçon de liaison (11) destiné à s'étendre au moins partiellement en contact d'appui à la fois contre les bords internes (20) de ladite cavité et sur la base du rail.4. Device according to claim 1 or 2, characterized in that the attachment springs (1) are symmetrical with respect to an axis transverse to the rail R and comprise two helical loops (10) separated by a connecting section (11) intended to extend at least partially in bearing contact both against the internal edges (20) of said cavity and on the base of the rail.
5. Dispositif selon la revendication 4, caractérisé en ce que la partie supérieure des bords internes (20) de ladite cavité (2) est pourvue d'un renflement (22) faisant saillie vers l'intérieur de l'embouchure de façon à définir une face d'appui inférieure (22a) de verrouillage pour les tronçons d'extrémité (12) ou le tronçon de liaison (11) des ressorts (1).5. Device according to claim 4, characterized in that the upper part of the internal edges (20) of said cavity (2) is provided with a bulge (22) projecting towards the inside of the mouth so as to define a lower support face (22a) for locking the end sections (12) or the connecting section (11) of the springs (1).
6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que ladite cavité (2) comporte des bords internes (20) inclinés de façon à former une embouchure rétrécie dont la largeur est légèrement supérieure à celle de la base du rail. 6. Device according to one of the preceding claims, characterized in that said cavity (2) has internal edges (20) inclined so as to form a narrowed mouth whose width is slightly greater than that of the base of the rail.
7. Dispositif selon la revendication 4 ou 5, caractérisé en ce que ledit tronçon de liaison (11) est rectiligne. 7. Device according to claim 4 or 5, characterized in that said connecting section (11) is rectilinear.
8. Dispositif selon la revendication 4 ou 5, caractérisé en ce que ledit tronçon de liaison (11) est courbe.8. Device according to claim 4 or 5, characterized in that said connecting section (11) is curved.
9. Dispositif selon l'une des revendications 4 à 8, caractérisé en ce que ledit tronçon de liaison (11) se raccorde aux boucles hélicoïdales (10) par deux coudes (110) épousant le rebord (B) de la base du rail (R).9. Device according to one of claims 4 to 8, characterized in that said connecting section (11) is connected to the helical loops (10) by two elbows (110) matching the flange (B) of the base of the rail ( R).
10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la face interne de ladite cavité (2) est solidaire d'une garniture constituée d'une selle de préférence métallique et/ou d'une couche d'un matériau (21) à la fois bon isolant électrique, ayant une bonne adhérence avec le béton, et assurant un contact de friction avec le matériau constitutif de la boucle (10).10. Device according to one of the preceding claims, characterized in that the internal face of said cavity (2) is integral with a lining consisting of a saddle, preferably metallic and / or a layer of a material ( 21) both good electrical insulator, having good adhesion with concrete, and ensuring friction contact with the material of the loop (10).
11. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la boucle hélicoïdale (10) comporte plusieurs spires (100). 11. Device according to one of the preceding claims, characterized in that the helical loop (10) comprises several turns (100).
12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdits ressorts (1) en boucle (10) sont réalisés avec une lame de section parallélépipédique à partir d'acier plat en bande.12. Device according to one of the preceding claims, characterized in that said springs (1) in a loop (10) are produced with a blade of parallelepipedal section from flat steel strip.
13. Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdits ressorts (1) en boucle (10) sont réalisés avec une tige de section circulaire ou quadrilatère.13. Device according to one of the preceding claims, characterized in that said springs (1) in a loop (10) are produced with a rod of circular or quadrilateral section.
14. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la direction de la résultante des forces d'appui des ressorts sur la base du rail est inclinée d'un angle α compris entre 20* et 60* par rapport à la verticale.14. Device according to one of the preceding claims, characterized in that the direction of the resultant of the support forces of the springs on the base of the rail is inclined at an angle α between 20 * and 60 * relative to the vertical.
15. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la partie supérieure des bords internes (20) de ladite cavité (2) fait saillie au-dessus du niveau de la face supérieure de la traverse T. 15. Device according to one of the preceding claims, characterized in that the upper part of the internal edges (20) of said cavity (2) protrudes above the level of the upper face of the crosspiece T.
16. Dispositif selon la revendication 5, caractérisé en ce que le profil de la face d'appui inférieure (22a) du renflement (22) épouse celui du tronçon d'extrémité (12) ou du tronçon de liaison (11) pour permettre un encliquetage de ce dernier.16. Device according to claim 5, characterized in that the profile of the lower bearing face (22a) of the bulge (22) matches that of the end section (12) or the connecting section (11) to allow a snap-fastening of the latter.
17. Procédé de montage d'un dispositif de fixation de rail selon l'une des revendications précédentes, caractérisé en ce qu'on choisit au préalable la raideur, la géométrie et les dimensions des ressorts d'attache (1) principalement en fonction de l'épaisseur et de la souplesse de la semelle de support (3) de façon à obtenir un appui des attaches (1) sur la base du rail dirigé selon une résultante inclinée par rapport à la verticale d'un angle α compris entre 20* et 60* par mise sous tension et verrouillage des boucles (10) dans ladite cavité (2). 17. A method of mounting a rail fixing device according to one of the preceding claims, characterized in that one chooses beforehand the stiffness, the geometry and the dimensions of the attachment springs. (1) mainly as a function of the thickness and flexibility of the support sole (3) so as to obtain support for the fasteners (1) on the base of the rail directed according to a result inclined with respect to the vertical of an angle α of between 20 * and 60 * by energizing and locking the loops (10) in said cavity (2).
PCT/FR1995/000983 1994-07-22 1995-07-21 Device for attaching a track rail to a sleeper WO1996003547A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO970189A NO970189L (en) 1994-07-22 1997-01-16 Device for attaching a rail to a sleepers
SE9700137A SE9700137L (en) 1994-07-22 1997-01-20 Device for attaching a rail to a grinder
FI970255A FI970255A (en) 1994-07-22 1997-01-22 Device for mounting a rail rail on a grinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409090A FR2722807B1 (en) 1994-07-22 1994-07-22 DEVICE FOR FIXING A RAILWAY RAIL ON A CROSSING
FR94/09090 1994-07-22

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Publication Number Publication Date
WO1996003547A1 true WO1996003547A1 (en) 1996-02-08

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PCT/FR1995/000983 WO1996003547A1 (en) 1994-07-22 1995-07-21 Device for attaching a track rail to a sleeper

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CA (1) CA2195643A1 (en)
FI (1) FI970255A (en)
FR (1) FR2722807B1 (en)
NO (1) NO970189L (en)
SE (1) SE9700137L (en)
WO (1) WO1996003547A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485217A (en) * 2019-08-27 2019-11-22 上海工程技术大学 It is a kind of for frequency modulation rail damper to be fixed on the clip on rail

Citations (6)

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Publication number Priority date Publication date Assignee Title
GB1010878A (en) * 1963-05-02 1965-11-24 Ressorts Du Nord Sa Resilient rail-fastening including its combination with a concrete sleeper
FR1603118A (en) * 1968-07-02 1971-03-22
DE2122146A1 (en) * 1971-05-05 1972-11-16 Lange, Lotte, 4050 Mönchengladbach Wire wound into a spring clip
FR2623827A1 (en) * 1987-11-27 1989-06-02 Ressorts Ind Device for fixing a railway rail to a sleeper, an attachment and an insert
DE3826362A1 (en) * 1988-08-03 1990-02-08 Erich Radler Mounting for a rail laid in a channel in a track-supporting slab
EP0374442A2 (en) * 1988-12-17 1990-06-27 Fried. Krupp AG Hoesch-Krupp Concrete sleeper with a rail fastener

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1010878A (en) * 1963-05-02 1965-11-24 Ressorts Du Nord Sa Resilient rail-fastening including its combination with a concrete sleeper
FR1603118A (en) * 1968-07-02 1971-03-22
DE2122146A1 (en) * 1971-05-05 1972-11-16 Lange, Lotte, 4050 Mönchengladbach Wire wound into a spring clip
FR2623827A1 (en) * 1987-11-27 1989-06-02 Ressorts Ind Device for fixing a railway rail to a sleeper, an attachment and an insert
DE3826362A1 (en) * 1988-08-03 1990-02-08 Erich Radler Mounting for a rail laid in a channel in a track-supporting slab
EP0374442A2 (en) * 1988-12-17 1990-06-27 Fried. Krupp AG Hoesch-Krupp Concrete sleeper with a rail fastener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485217A (en) * 2019-08-27 2019-11-22 上海工程技术大学 It is a kind of for frequency modulation rail damper to be fixed on the clip on rail

Also Published As

Publication number Publication date
SE9700137L (en) 1997-03-19
SE9700137D0 (en) 1997-01-20
FR2722807B1 (en) 1996-10-11
FI970255A0 (en) 1997-01-22
NO970189L (en) 1997-01-22
CA2195643A1 (en) 1996-02-08
FR2722807A1 (en) 1996-01-26
NO970189D0 (en) 1997-01-16
FI970255A (en) 1997-01-22

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