EP0841433A1 - Blocking device for rail fastening - Google Patents

Blocking device for rail fastening Download PDF

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Publication number
EP0841433A1
EP0841433A1 EP97402656A EP97402656A EP0841433A1 EP 0841433 A1 EP0841433 A1 EP 0841433A1 EP 97402656 A EP97402656 A EP 97402656A EP 97402656 A EP97402656 A EP 97402656A EP 0841433 A1 EP0841433 A1 EP 0841433A1
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EP
European Patent Office
Prior art keywords
stop
interlayer
cavities
fastener
bosses
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP97402656A
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German (de)
French (fr)
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EP0841433B1 (en
Inventor
Claude Loison
Joel J. Cailliau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Railtech International SA
Original Assignee
Allevard SA
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Publication date
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Publication of EP0841433A1 publication Critical patent/EP0841433A1/en
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Publication of EP0841433B1 publication Critical patent/EP0841433B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to a device for fixing a railroad rail on a sleeper.
  • Traditional fastening devices generally comprise, in particular on each side of the rail, an elastically deformable fastener fixed to said crossmember by means of an anchoring member (stud, lag screw, etc.).
  • an anchoring member stud, lag screw, etc.
  • This fastener is intended to bear on the pad or rail base via an interlayer made with an insulating material from an electrical point of view.
  • These devices further comprise a lateral stop disposed between, on the one hand, the base of the rail which rests, moreover, on an elastic sole and said cross member, on the other hand.
  • the lateral stop transmits the transverse forces from the rail to a shoulder made hollow in the cross-member.
  • the fastener generally consists of a spring steel plate with a double bend provided with a central hole for the passage of the anchoring member.
  • the two bends are at perpendicular axes to allow elastic deformation by bending.
  • the fastener retains, even after tightening of the anchoring member, a degree of freedom in rotation while the lateral stop has a degree of freedom in vertical translation parallel to the axis of the anchoring member.
  • the present invention aims to solve these technical problems satisfactorily.
  • a device for fixing a railway rail on a cross member comprising in particular an elastically deformable fastener fixed on said cross member by means of an anchoring member and intended to bear on the base of the rail via an insulating insert and a lateral stop disposed between, on the one hand, the base of the rail which rests on an elastic sole and said cross member on the other hand, characterized in that the lateral stop comprises on its upper face, at least two symmetrical cavities with respect to its transverse axis which are delimited on their inner edge by an inclined face, said cavities being intended to receive when the fastening of the fastener bosses with complementary profiles secured to the underside of the interlayer, thus forming means for blocking the rotation of said fastener and the vertical translation of said stop.
  • the underside of said lateral stop is provided with a housing in which is engaged a tongue integral with the lateral end of the sole.
  • said insulating interlayer is provided with two clamps for hanging on the inner edge of the fastener.
  • the inclined faces respectively of the cavities of the stop and the corresponding bosses of the interlayer are parallel two by two.
  • these same inclined faces are separated before tightening the fastener by a clearance which depends on the initial bending of the fastener and which are, after tightening, in mutual support contact.
  • the height of the bosses of the interlayer is less than or equal to the depth of the cavities of the stop.
  • angles of the inclined faces of the bosses of the interlayer and of the cavities of the stop are between 20o and 70o.
  • the device of the invention therefore comprises simple and effective locking and wedging means in the form of a geometric interface between, on the one hand, the fastener equipped with its insulating insert and the lateral stop, on the other hand.
  • the particular geometry of this interface makes it possible to retain the interlayer, the fastener and the stop in optimal positions during the tightening phase of the anchoring member.
  • the fixing device shown in Figures 1 and 2 is intended to ensure the fixing of a rail R of a rail on a cross T made for example of concrete.
  • This device comprises, on either side of the rail R, an elastically deformable fastener 1 in the form of a steel plate or blade fixed to the cross-member T by means of an anchoring member G such as a stud or a lag screw.
  • the fastener 1 is supported on the shoe or base B of the rail R via an insulating insert 2 made, for example, of plastic.
  • the device also comprises a lateral stop 3 made of plastic.
  • This stop forming a spacer is disposed between, on the one hand, the base B of the rail R which rests on an elastic sole 4, and the crosspiece T, on the other hand.
  • the housing L formed in the crosspiece T for receiving the rail R is hollowed out delimiting lateral shoulders and has where appropriate, as shown in Figure 1, a support surface inclined at an angle a with respect to a plane horizontal whose value is a few degrees.
  • the lateral stop 3 has on its lower face, a housing 33 in which is engaged a tongue 43 secured to the lateral end of the sole 4 (see FIG. 5).
  • the tongue 43 extends only over the portion of the sole located opposite the fixing device.
  • the lateral stop 3 has on its upper face at least two cavities 31, 32 intended to receive, when tightening the fastener 1, bosses 21, 22 with complementary profiles secured to the lower face of insulating interlayer 2.
  • the stop 3 has more than two cavities.
  • the cavities 31, 32 as well as the corresponding bosses 21, 22 are symmetrical with respect to the respective transverse axes of the stop 3 and of the interlayer 2.
  • Each cavity 31,32 is delimited on its inner edge by an inclined face 31a, 32a.
  • each boss 21, 22 has an inner lateral face 21a, 22a which is inclined, so that the respective inner side faces of the cavities 31, 32 of the stop 3 and the bosses 21, 22 of the interlayer 2 are substantially parallel. two by two.
  • the inclination of the internal lateral faces of the cavity and of the boss corresponding to one of the sides of the assembly is different from the inclination relating to the same faces on the other side.
  • the inclinations of these faces is between 20 o and 70 o .
  • the bosses 21, 22 are carried by arms 2a extending towards the rear of the interlayer 2 while moving away of the rail R.
  • the interlayer 2 is provided with two U-shaped clamps 20 ensuring the attachment to the front edge of the fastener 1.
  • the stop 3 has a substantially square profile with a side 3a which is arranged in contact with the internal lateral wall in the shoulder of the housing L of the cross member T reserved for the rail R.
  • the upper side 3b of the stop 3 has a circular cutout 30 allowing its axial positioning in front of the clamping member G.
  • FIGS. 4a and 4b represent views in partial section of the device of the invention, according to the plane CC of FIG. 1.
  • the fastener 1 Before tightening (FIG. 4a), the fastener 1 is doubly bent and the respective inclined faces 21a, 31a and 22a, 32a of the cavities 31, 32 and the bosses 21, 22 are separated by a clearance J depending on the value of the initial bending. .
  • This clearance J is generally between a few tenths of a millimeter and a few millimeters.
  • the clip 1 and the spacer 2 are positioned so that the axis of symmetry of the clip is perpendicular to the longitudinal axis of the rail R.
  • the tightening also has the effect of flattening the fastener 1 by gradually and elastically reducing its bending.
  • the progressive reduction of the clearance J is also accompanied by a correct repositioning of the fastener 1 which is oriented and automatically displaced in rotation about the axis of the clamping member.
  • This interlocking blocking is also maintained elastically thanks to the spring effects produced by the fastener 1, and the sole 4 disposed under the rail.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The rail fixing assembly consists of a flexible plate which is fixed to the sleeper by an anchor bolt, and an insulating spacer (2) between the plate and rail foot. It also has a lateral stop (3) which is fitted between the edge of the rail foot on an elastic sole plate and the sleeper. The upper surface of the lateral stop has at least two recesses (31, 32) which lie symmetrically relative to its transverse axis and have inner inclined faces (31a, 32a). The recesses are designed to engage with matching projections (21, 22) on the inner face of the spacer (2) which lock the flexible plate from rotation and vertical movement. The under surface of the stop has an additional recess to receive a tongue on the lateral edge of the sole plate.

Description

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.

Les dispositifs de fixation traditionnels comprennent, généralement et notamment de chaque côté du rail, une attache élastiquement déformable fixée sur ladite traverse au moyen d'un organe d'ancrage (goujon, tire-fond ...).Traditional fastening devices generally comprise, in particular on each side of the rail, an elastically deformable fastener fixed to said crossmember by means of an anchoring member (stud, lag screw, etc.).

Cette attache est destinée à prendre appui sur le patin ou base de rail via un intercalaire réalisé avec un matériau isolant d'un point de vue électrique.This fastener is intended to bear on the pad or rail base via an interlayer made with an insulating material from an electrical point of view.

Ces dispositifs comprennent, en outre, une butée latérale disposée entre, d'une part, la base du rail qui repose, par ailleurs, sur une semelle élastique et ladite traverse, d'autre part.These devices further comprise a lateral stop disposed between, on the one hand, the base of the rail which rests, moreover, on an elastic sole and said cross member, on the other hand.

La butée latérale transmet les efforts transversaux du rail vers un épaulement réalisé en creux dans la traverse.The lateral stop transmits the transverse forces from the rail to a shoulder made hollow in the cross-member.

L'attache est généralement constituée d'une plaque d'acier à ressort avec un double cintrage pourvue d'un orifice central pour le passage de l'organe d'ancrage.The fastener generally consists of a spring steel plate with a double bend provided with a central hole for the passage of the anchoring member.

Les deux cintrages sont à axes perpendiculaires pour permettre une déformation élastique par flexion.The two bends are at perpendicular axes to allow elastic deformation by bending.

Cependant, dans de tels dispositifs, l'attache conserve, même après serrage de l'organe d'ancrage, un degré de liberté en rotation tandis que la butée latérale possède quant à elle un degré de liberté en translation verticale parallèlement à l'axe de l'organe d'ancrage.However, in such devices, the fastener retains, even after tightening of the anchoring member, a degree of freedom in rotation while the lateral stop has a degree of freedom in vertical translation parallel to the axis of the anchoring member.

Or, ces libertés de déplacement sont fortement préjudiciables à la tenue mécanique du dispositif et augmentent les risques de rupture ou d'usure prématurée.However, these freedoms of movement are highly detrimental to the mechanical strength of the device and increase the risk of rupture or premature wear.

La présente invention a pour but de résoudre ces problèmes techniques de manière satisfaisante.The present invention aims to solve these technical problems satisfactorily.

Ce but est atteint conformément à l'invention, au moyen d'un dispositif de fixation d'un rail de chemin de fer sur une traverse comprenant notamment une attache élastiquement déformable fixée sur ladite traverse au moyen d'un organe d'ancrage et destinée à prendre appui sur la base du rail via un intercalaire isolant et une butée latérale disposée entre, d'une part, la base du rail qui repose sur une semelle élastique et ladite traverse d'autre part,
   caractérisé en ce que la butée latérale comporte sur sa face supérieure, au moins deux cavités symétriques par rapport à son axe transversal qui sont délimitées sur leur bord intérieur par une face inclinée, lesdites cavités étant destinées à recevoir lors du serrage de l'attache des bossages à profils complémentaires solidaires de la face inférieure de l'intercalaire en formant ainsi des moyens de blocage en rotation de ladite attache et en translation verticale de ladite butée.This object is achieved in accordance with the invention, by means of a device for fixing a railway rail on a cross member comprising in particular an elastically deformable fastener fixed on said cross member by means of an anchoring member and intended to bear on the base of the rail via an insulating insert and a lateral stop disposed between, on the one hand, the base of the rail which rests on an elastic sole and said cross member on the other hand,
characterized in that the lateral stop comprises on its upper face, at least two symmetrical cavities with respect to its transverse axis which are delimited on their inner edge by an inclined face, said cavities being intended to receive when the fastening of the fastener bosses with complementary profiles secured to the underside of the interlayer, thus forming means for blocking the rotation of said fastener and the vertical translation of said stop.

Selon une caractéristique avantageuse, la face inférieure de ladite butée latérale est pourvue d'un logement dans lequel est engagée une languette solidaire de l'extrémité latérale de la semelle.According to an advantageous characteristic, the underside of said lateral stop is provided with a housing in which is engaged a tongue integral with the lateral end of the sole.

Selon une autre caractéristique, ledit intercalaire isolant est pourvu de deux pinces pour l'accrochage sur le bord intérieur de l'attache.According to another characteristic, said insulating interlayer is provided with two clamps for hanging on the inner edge of the fastener.

Selon encore d'autres caractéristiques, les faces inclinées respectivement des cavités de la butée et des bossages correspondants de l'intercalaire sont parallèles deux à deux.According to still other characteristics, the inclined faces respectively of the cavities of the stop and the corresponding bosses of the interlayer are parallel two by two.

De préférence, ces mêmes faces inclinées sont séparées avant serrage de l'attache par un jeu qui dépend du cintrage initial de l'attache et qui sont, après serrage, en contact d'appui mutuel.Preferably, these same inclined faces are separated before tightening the fastener by a clearance which depends on the initial bending of the fastener and which are, after tightening, in mutual support contact.

Selon une autre caractéristique, la hauteur des bossages de l'intercalaire est inférieure ou égale à la profondeur des cavités de la butée.According to another characteristic, the height of the bosses of the interlayer is less than or equal to the depth of the cavities of the stop.

De préférence, les angles des faces inclinées des bossages de l'intercalaire et des cavités de la butée sont compris entre 20º et 70º.Preferably, the angles of the inclined faces of the bosses of the interlayer and of the cavities of the stop are between 20º and 70º.

Le dispositif de l'invention comporte donc des moyens de blocage et de calage simples et efficaces sous forme d'une interface géométrique entre, d'une part, l'attache équipée de son intercalaire isolant et la butée latérale, d'autre part. La géométrie particulière de cette interface permet de retenir l'intercalaire, l'attache et la butée dans des positions optimales lors de la phase de serrage de l'organe d'ancrage.The device of the invention therefore comprises simple and effective locking and wedging means in the form of a geometric interface between, on the one hand, the fastener equipped with its insulating insert and the lateral stop, on the other hand. The particular geometry of this interface makes it possible to retain the interlayer, the fastener and the stop in optimal positions during the tightening phase of the anchoring member.

En outre, dans le cas où, avant la phase de serrage, l'attache ne serait pas positionnée correctement par rapport au rail, c'est-à-dire que son axe transversal ne serait pas rigoureusement perpendiculaire à l'axe longitudinal du rail lors du serrage ultérieur, les faces inclinées de cette interface permettront de guider l'intercalaire, et donc l'attache qui en est solidaire, vers la position correcte d'assemblage.In addition, in the case where, before the tightening phase, the fastener would not be positioned correctly relative to the rail, that is to say that its transverse axis would not be strictly perpendicular to the longitudinal axis of the rail during subsequent tightening, the inclined faces of this interface will guide the interlayer, and therefore the fastener which is integral therewith, towards the correct assembly position.

La bonne tenue de l'assemblage est donc garantie, ce qui réduit, au surplus, les risques de rupture ou d'usure prématurée.The good performance of the assembly is therefore guaranteed, which also reduces the risk of breakage or premature wear.

L'invention sera mieux comprise à la lecture de la description qui va suivre accompagnée des dessins sur lesquels :

  • la figure 1 représente une vue de dessus d'un mode de réalisation du dispositif de l'invention ;
  • la figure 2 représente une vue en coupe transversale selon AA du mode de réalisation de la figure 1;
  • la figure 3 représente une vue en perspective éclatée d'un mode de réalisation des moyens de calage selon l'invention ;
  • les figures 4a et 4b sont des vues en coupe partielle selon CC respectivement avant et après serrage des moyens de calage selon l'invention ;
  • la figure 5 représente une vue de dessus de la semelle utilisée dans le dispositif de l'invention.
The invention will be better understood on reading the description which follows, accompanied by the drawings in which:
  • Figure 1 shows a top view of an embodiment of the device of the invention;
  • 2 shows a cross-sectional view along AA of the embodiment of Figure 1;
  • FIG. 3 represents an exploded perspective view of an embodiment of the wedging means according to the invention;
  • Figures 4a and 4b are views in partial section along CC respectively before and after tightening of the wedging means according to the invention;
  • FIG. 5 represents a top view of the sole used in the device of the invention.

Le dispositif de fixation représenté sur les figures 1 et 2 est destiné à assurer la fixation d'un rail R de chemin de fer sur une traverse T réalisée par exemple en béton.The fixing device shown in Figures 1 and 2 is intended to ensure the fixing of a rail R of a rail on a cross T made for example of concrete.

Ce dispositif comprend, de part et d'autre du rail R, une attache élastiquement déformable 1 sous forme d'une plaque ou lame d'acier fixée sur la traverse T au moyen d'un organe d'ancrage G tel qu'un goujon ou un tire-fond.This device comprises, on either side of the rail R, an elastically deformable fastener 1 in the form of a steel plate or blade fixed to the cross-member T by means of an anchoring member G such as a stud or a lag screw.

L'attache 1 prend appui sur le patin ou base B du rail R via un intercalaire isolant 2 réalisé, par exemple, en matière plastique.The fastener 1 is supported on the shoe or base B of the rail R via an insulating insert 2 made, for example, of plastic.

Le dispositif comprend aussi une butée latérale 3 en matière plastique. Cette butée formant entretoise est disposée entre, d'une part, la base B du rail R qui repose sur une semelle élastique 4, et la traverse T, d'autre part. Le logement L ménagé dans la traverse T pour recevoir le rail R est réalisé en creux en délimitant des épaulements latéraux et présente le cas échéant, comme représenté sur la figure 1, une surface de support inclinée d'un angle a par rapport à un plan horizontal dont la valeur est de quelques degrés. La butée latérale 3 comporte sur sa face inférieure, un logement 33 dans lequel est engagée une languette 43 solidaire de l'extrémité latérale de la semelle 4 (voir figure 5).The device also comprises a lateral stop 3 made of plastic. This stop forming a spacer is disposed between, on the one hand, the base B of the rail R which rests on an elastic sole 4, and the crosspiece T, on the other hand. The housing L formed in the crosspiece T for receiving the rail R is hollowed out delimiting lateral shoulders and has where appropriate, as shown in Figure 1, a support surface inclined at an angle a with respect to a plane horizontal whose value is a few degrees. The lateral stop 3 has on its lower face, a housing 33 in which is engaged a tongue 43 secured to the lateral end of the sole 4 (see FIG. 5).

La languette 43 ne s'étend que sur la portion de la semelle située en vis-à-vis du dispositif de fixation.The tongue 43 extends only over the portion of the sole located opposite the fixing device.

Dans le cas où ces dispositifs sont montés de façon décalée d'un côté à l'autre du rail R (comme représenté sur la figure 1) les languettes 43 sont alors également décalées sur la semelle 4.In the case where these devices are mounted offset from one side to the other of the rail R (as shown in FIG. 1) the tongues 43 are then also offset on the sole 4.

Comme représenté en détail sur la figure 3, la butée latérale 3 comporte sur sa face supérieure au moins deux cavités 31,32 destinées à recevoir lors du serrage de l'attache 1 des bossages 21,22 à profils complémentaires solidaires de la face inférieure de l'intercalaire isolant 2.As shown in detail in FIG. 3, the lateral stop 3 has on its upper face at least two cavities 31, 32 intended to receive, when tightening the fastener 1, bosses 21, 22 with complementary profiles secured to the lower face of insulating interlayer 2.

On peut également prévoir, selon des modes de réalisation non représentés, que la butée 3 comporte plus de deux cavités.One can also provide, according to embodiments not shown, that the stop 3 has more than two cavities.

Les cavités 31,32 ainsi que les bossages correspondants 21,22 sont symétriques par rapport aux axes transversaux respectifs de la butée 3 et de l'intercalaire 2.The cavities 31, 32 as well as the corresponding bosses 21, 22 are symmetrical with respect to the respective transverse axes of the stop 3 and of the interlayer 2.

Chaque cavité 31,32 est délimitée sur son bord intérieur par une face inclinée 31a,32a.Each cavity 31,32 is delimited on its inner edge by an inclined face 31a, 32a.

De même chaque bossage 21,22 comporte une face latérale intérieure 21a,22a qui est inclinée, de sorte que les faces latérales intérieures respectives des cavités 31,32 de la butée 3 et des bossages 21,22 de l'intercalaire 2 soient sensiblement parallèles deux à deux.Likewise, each boss 21, 22 has an inner lateral face 21a, 22a which is inclined, so that the respective inner side faces of the cavities 31, 32 of the stop 3 and the bosses 21, 22 of the interlayer 2 are substantially parallel. two by two.

Toutefois, dans certains cas particuliers, il pourra être utile de prévoir que l'inclinaison des faces latérales intérieures de la cavité et du bossage correspondant à l'un des côtés de l'assemblage, soit différente de l'inclinaison relative aux mêmes faces sur l'autre côté.However, in certain particular cases, it may be useful to provide that the inclination of the internal lateral faces of the cavity and of the boss corresponding to one of the sides of the assembly, is different from the inclination relating to the same faces on the other side.

De préférence, les inclinaisons de ces faces est comprise entre 20º et 70º.Preferably, the inclinations of these faces is between 20 º and 70 º .

Compte tenu des positions relatives de l'intercalaire 2 et de la butée latérale 3 dans l'assemblage du dispositif, les bossages 21,22 sont portés par des bras 2a s'étendant vers l'arrière de l'intercalaire 2 en s'éloignant du rail R. L'intercalaire 2 est pourvu de deux pinces 20 en U assurant l'accrochage sur le bord avant de l'attache 1.Given the relative positions of the interlayer 2 and the lateral stop 3 in the assembly of the device, the bosses 21, 22 are carried by arms 2a extending towards the rear of the interlayer 2 while moving away of the rail R. The interlayer 2 is provided with two U-shaped clamps 20 ensuring the attachment to the front edge of the fastener 1.

La butée 3 a un profil sensiblement en équerre avec un flanc 3a qui est disposé au contact de la paroi latérale interne en épaulement du logement L de la traverse T réservé au rail R. Le flanc supérieur 3b de la butée 3 comporte une découpe circulaire 30 permettant son positionnement axial devant l'organe de serrage G.The stop 3 has a substantially square profile with a side 3a which is arranged in contact with the internal lateral wall in the shoulder of the housing L of the cross member T reserved for the rail R. The upper side 3b of the stop 3 has a circular cutout 30 allowing its axial positioning in front of the clamping member G.

Les figures 4a et 4b représentent des vues en coupe partielle du dispositif de l'invention, selon le plan CC de la figure 1.FIGS. 4a and 4b represent views in partial section of the device of the invention, according to the plane CC of FIG. 1.

Avant serrage (figure 4a), l'attache 1 est doublement cintrée et les faces inclinées respectives 21a,31a et 22a, 32a des cavités 31,32 et des bossages 21,22 sont séparées par un jeu J dépendant de la valeur du cintrage initial. Ce jeu J est généralement compris entre quelques dixièmes de millimètres et quelques millimètres. L'attache 1 et l'intercalaire 2 sont positionnés de façon à ce que l'axe de symétrie de l'attache soit perpendiculaire à l'axe longitudinal du rail R.Before tightening (FIG. 4a), the fastener 1 is doubly bent and the respective inclined faces 21a, 31a and 22a, 32a of the cavities 31, 32 and the bosses 21, 22 are separated by a clearance J depending on the value of the initial bending. . This clearance J is generally between a few tenths of a millimeter and a few millimeters. The clip 1 and the spacer 2 are positioned so that the axis of symmetry of the clip is perpendicular to the longitudinal axis of the rail R.

En phase de serrage (figure 4b), l'attache 1 et l'intercalaire 2 descendent verticalement sous l'effet de la compression de la languette 43 de l'extrémité latérale de la semelle 4 qui est engagée dans le logement inférieur 33 de la butée 3.In the tightening phase (FIG. 4b), the fastener 1 and the interlayer 2 descend vertically under the effect of the compression of the tongue 43 of the lateral end of the sole 4 which is engaged in the lower housing 33 of the stop 3.

Conjointement, le serrage a aussi pour effet d'aplanir l'attache 1 en réduisant progressivement et élastiquement son cintrage.Jointly, the tightening also has the effect of flattening the fastener 1 by gradually and elastically reducing its bending.

Les déformations élastiques tenant à la fois à l'aplanissement de l'attache 1 et/ou à la compression de la semelle entraînent la diminution du jeu J jusqu'à la mise en contact d'appui mutuel des faces inclinées respectives des bossages 21,22 et des cavités 31,32.The elastic deformations due to both the flattening of the fastener 1 and / or the compression of the sole cause the clearance J to be reduced until the respective inclined faces of the bosses 21 come into contact with each other, 22 and cavities 31.32.

Il peut néanmoins subsister un léger jeu vertical entre les faces inférieures des bossages 21,22 et le fond des cavités 31,32 comme représenté sur la figure 4b du fait que la hauteur des bossages 21,22 est inférieure ou égale à la profondeur des cavités 31,32.There may nevertheless remain a slight vertical clearance between the lower faces of the bosses 21,22 and the bottom of the cavities 31,32 as shown in FIG. 4b because the height of the bosses 21,22 is less than or equal to the depth of the cavities 31.32.

La réduction progressive du jeu J s'accompagne aussi d'un repositionnement correct de l'attache 1 qui est orientée et déplacée automatiquement en rotation autour de l'axe de l'organe de serrage.The progressive reduction of the clearance J is also accompanied by a correct repositioning of the fastener 1 which is oriented and automatically displaced in rotation about the axis of the clamping member.

Cette rotation est guidée par glissement des faces inclinées jusqu'à ce que l'axe de symétrie de l'attache soit exactement perpendiculaire à l'axe longitudinal du rail R.This rotation is guided by sliding the inclined faces until the axis of symmetry of the fastener is exactly perpendicular to the longitudinal axis of the rail R.

En fin de serrage, l'effort d'action-réaction entre la butée 3 et l'intercalaire 2 qui s'exerce sur les faces inclinées interdit tout mouvement de rotation de l'assemblage attache 1 / intercalaire 2 ainsi que tout déplacement en translation verticale de la butée latérale 3.At the end of tightening, the action-reaction force between the stop 3 and the interlayer 2 which is exerted on the inclined faces prohibits any rotational movement of the attachment 1 / interlayer 2 assembly as well as any movement in translation vertical of the lateral stop 3.

Ce blocage par emboîtement est de plus maintenu élastiquement grâce aux effets de ressort produits par l'attache 1, et la semelle 4 disposée sous le rail.This interlocking blocking is also maintained elastically thanks to the spring effects produced by the fastener 1, and the sole 4 disposed under the rail.

Claims (8)

Dispositif de fixation d'un rail (R) de chemin de fer sur une traverse (T) comprenant notamment une attache (1) élastiquement déformable fixée sur ladite traverse (T) au moyen d'un organe d'ancrage (G) et destinée à prendre appui sur la base (B) du rail (R) via un intercalaire isolant (2) et une butée latérale (3) disposée entre, d'une part, la base (B) du rail (R) qui repose sur une semelle élastique (4) et ladite traverse (T) d'autre part,
   caractérisé en ce que la butée latérale (3) comporte sur sa face supérieure au moins deux cavités (31,32) symétriques par rapport à son axe transversal, qui sont délimitées sur leur bord intérieur par une face inclinée (31a,32a), lesdites cavités (31,32) étant destinées à recevoir lors du serrage de l'attache (1) des bossages (21,22) à profils complémentaires solidaires de la face inférieure de l'intercalaire (2) en formant ainsi des moyens de blocage en rotation de ladite attache (1) et en translation verticale de ladite butée (3).Device for fixing a rail (R) of a railway on a cross-member (T) comprising in particular an elastically deformable fastener (1) fixed on said cross-member (T) by means of an anchoring member (G) and intended to be supported on the base (B) of the rail (R) via an insulating insert (2) and a lateral stop (3) disposed between, on the one hand, the base (B) of the rail (R) which rests on a elastic sole (4) and said crosspiece (T) on the other hand,
characterized in that the lateral stop (3) has on its upper face at least two cavities (31,32) symmetrical with respect to its transverse axis, which are delimited on their inner edge by an inclined face (31a, 32a), said cavities (31,32) being intended to receive when tightening the fastener (1) bosses (21,22) with complementary profiles integral with the underside of the interlayer (2) thereby forming locking means in rotation of said fastener (1) and in vertical translation of said stop (3). Dispositif selon la revendication 1, caractérisé en ce que la face inférieure de ladite butée latérale (3) est pourvue d'un logement (33) dans lequel est engagée une languette (43) solidaire de l'extrémité latérale de la semelle (4).Device according to claim 1, characterized in that the lower face of said lateral stop (3) is provided with a housing (33) in which is engaged a tongue (43) integral with the lateral end of the sole (4) . Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que ledit intercalaire isolant (2) est pourvu de deux pinces (20) pour l'accrochage sur le bord avant de l'attache (1).Device according to one of claims 1 or 2, characterized in that said insulating interlayer (2) is provided with two clamps (20) for attachment to the front edge of the fastener (1). Dispositif selon l'une des revendications précédentes, caractérisé en ce que les faces inclinées (31a,32a, 21a,22a) respectivement des cavités (31,32) de la butée (3) et des bossages (21,22) correspondants de l'intercalaire (2) sont parallèles deux à deux.Device according to one of the preceding claims, characterized in that the inclined faces (31a, 32a, 21a, 22a) respectively of the cavities (31,32) of the stop (3) and the corresponding bosses (21,22) of the 'interlayer (2) are parallel two by two. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les faces inclinées respectivement des cavités (31,32) de la butée (3) et des bossages (21,22) correspondants de l'intercalaire (2) sont séparées avant serrage de l'attache par un jeu (J) qui dépend du cintrage initial de l'attache (1)Device according to one of the preceding claims, characterized in that the inclined faces respectively of the cavities (31,32) of the stop (3) and the corresponding bosses (21,22) of the interlayer (2) are separated before tightening of the attachment by a clearance (J) which depends on the initial bending of the attachment (1) Dispositif selon l'une des revendications précédentes, caractérisé en ce que les faces inclinées respectivement des cavités (31,32) de la butée (3) et des bossages (21,22) correspondants de l'intercalaire (2) sont en contact d'appui mutuel après serrage de l'attache (1).Device according to one of the preceding claims, characterized in that the inclined faces respectively of the cavities (31,32) of the stop (3) and of the bosses (21,22) corresponding to the interlayer (2) are in mutual support contact after tightening of the fastener (1). Dispositif selon l'une des revendications précédentes, caractérisé en ce que la hauteur des bossages (21,22) de l'intercalaire (2) est inférieure ou égale à la profondeur des cavités (31,32) de la butée (3).Device according to one of the preceding claims, characterized in that the height of the bosses (21,22) of the interlayer (2) is less than or equal to the depth of the cavities (31,32) of the stop (3). Dispositif selon l'une des revendications précédentes, caractérisé en ce que les angles des faces inclinées (21a,22a,31a,32a) des bossages (21,22) de l'intercalaire (2) et des cavités (31,32) de la butée (3) sont compris entre 20º et 70º.Device according to one of the preceding claims, characterized in that the angles of the inclined faces (21a, 22a, 31a, 32a) of the bosses (21,22) of the interlayer (2) and of the cavities (31,32) of the stop (3) is between 20º and 70º.
EP19970402656 1996-11-06 1997-11-06 Rail fastening device Expired - Lifetime EP0841433B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613506A FR2755449B1 (en) 1996-11-06 1996-11-06 LOCKING DEVICE FOR RAIL FIXING
FR9613506 1996-11-06

Publications (2)

Publication Number Publication Date
EP0841433A1 true EP0841433A1 (en) 1998-05-13
EP0841433B1 EP0841433B1 (en) 2004-04-21

Family

ID=9497361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970402656 Expired - Lifetime EP0841433B1 (en) 1996-11-06 1997-11-06 Rail fastening device

Country Status (7)

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EP (1) EP0841433B1 (en)
DE (1) DE69728734T2 (en)
DZ (1) DZ2329A1 (en)
ES (1) ES2219739T3 (en)
FR (1) FR2755449B1 (en)
MA (1) MA24394A1 (en)
TN (1) TNSN97170A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2486306C1 (en) * 2012-01-10 2013-06-27 Геннадий Федорович Буряков Intermediate separate fixture of rails

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109860A (en) * 1975-03-26 1978-08-29 Societe Anonyme De Traverses En Beton Arme - Systeme Vagneux Rail spring clip with tension limiting feature
FR2628455A1 (en) * 1988-03-10 1989-09-15 Dehe Entreprises A Rail-to-sleeper securing stud for pre-assembly - has insulating spacer formed in two parts so that upper can be positioned for rail laying, then turned for tightening
WO1991011556A1 (en) * 1990-01-30 1991-08-08 Allevard Industries Device for attaching a rail to a concrete or metal support
US5520330A (en) * 1991-12-18 1996-05-28 Pandrol Limited Railway rail-fastening clip and assembly and methods of employing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109860A (en) * 1975-03-26 1978-08-29 Societe Anonyme De Traverses En Beton Arme - Systeme Vagneux Rail spring clip with tension limiting feature
FR2628455A1 (en) * 1988-03-10 1989-09-15 Dehe Entreprises A Rail-to-sleeper securing stud for pre-assembly - has insulating spacer formed in two parts so that upper can be positioned for rail laying, then turned for tightening
WO1991011556A1 (en) * 1990-01-30 1991-08-08 Allevard Industries Device for attaching a rail to a concrete or metal support
US5520330A (en) * 1991-12-18 1996-05-28 Pandrol Limited Railway rail-fastening clip and assembly and methods of employing the same

Also Published As

Publication number Publication date
FR2755449B1 (en) 1999-01-22
TNSN97170A1 (en) 1999-12-31
EP0841433B1 (en) 2004-04-21
DE69728734T2 (en) 2005-04-28
MA24394A1 (en) 1998-07-01
FR2755449A1 (en) 1998-05-07
ES2219739T3 (en) 2004-12-01
DZ2329A1 (en) 2002-12-28
DE69728734D1 (en) 2004-05-27

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