EP0138691A1 - Pad for an elastic rail fastener - Google Patents

Pad for an elastic rail fastener Download PDF

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Publication number
EP0138691A1
EP0138691A1 EP84401958A EP84401958A EP0138691A1 EP 0138691 A1 EP0138691 A1 EP 0138691A1 EP 84401958 A EP84401958 A EP 84401958A EP 84401958 A EP84401958 A EP 84401958A EP 0138691 A1 EP0138691 A1 EP 0138691A1
Authority
EP
European Patent Office
Prior art keywords
shoe
blade
rail
pad
boss
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.)
Withdrawn
Application number
EP84401958A
Other languages
German (de)
French (fr)
Inventor
Michel Duchemin
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.)
Ressorts Industrie SA
Original Assignee
Ressorts Industrie SA
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 Ressorts Industrie SA filed Critical Ressorts Industrie SA
Publication of EP0138691A1 publication Critical patent/EP0138691A1/en
Withdrawn legal-status Critical Current

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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
    • E01B9/306—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips the clip being a shaped plate
    • 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
    • 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 new shoe (or stop) usable for producing an elastic fixing of a rail on a cross member and, more particularly, on a reinforced concrete cross member.
  • connection of the rails to the sleepers or other supports includes guides or lateral stops, the main drawback of which is the reciprocal wear of the rail and the stop.
  • This wear is obviously not favorable to the preservation of a good geometry of the track and, in certain cases, it leads to a partial deterioration of the rail which makes the latter non-reusable.
  • the guides can have other drawbacks such as too great rigidity which makes them difficult to use with concrete sleepers and for elastic metal stops insufficient resistance to large forces which are developed during the passage of convoys in curves small radius.
  • the present invention relates to a rail fastener using the known elastic blade described in the patent.
  • French No 2,481,334 and a shoe said shoe comprising a core 11 which is inserted in the loop 4 of said blade, a body integral with said core provided with an opening for the passage of a clamping member and a heel 6 arranged to constitute a stop against the edge of the rail pad, and an extension 7 disposed above the rail pad, said shoe being characterized in that its upper face comprises a boss 8 located substantially at the edge of the rail pad, said boss separating two recessed parts.
  • the core 11 of the shoe is used to attach and place said shoe under the elastic blade.
  • the extension 7 of the shoe above the shoe of the rail is used to achieve complete isolation of the blade from the rail.
  • the boss 8 is used to control the clamping of the blade on the shoe and cause a blocking of the shoe stop against the rail pad.
  • the fastener according to the invention includes a blade L and a shoe S. It is used to fix the rail R on the cross T, an elastic and insulating sole I being disposed between the rail R and the cross T .
  • the blade L made of spring steel has an orifice 1 for the passage of the clamping member 2 shown in FIG. 2, one end 3 resting on the shoe S and one end wound in the form of a loop 4 which serves as articulation with the cross on the one hand and with the shoe S on the other.
  • the shoe S made of polyamide, polyacetal resin, or other material of the same elasticity comprises: an orifice 5 coaxial with the orifice 1 of the blade for the passage of the clamping member 2, a heel 6 forming a lateral stop for the rail, a extension 7 which isolates the blade L of the rail R and has a boss 8 leaving a clearance J of a well-defined value between the blade L and its shoe S, a support 10 arranged for the blade, a recess 9 which separates the support 10 from the boss 8 and a core 11, the shape of which adapts to the partially cylindrical interior shape of the loop 4. Between the core 11 and the boss 8, the upper face 12 of the shoe S is slightly curved. The underside 13 of the shoe S does not come into contact with the crosspiece T and has a small shoulder 14 which serves to position the insulating sole I.
  • the clamping of the blade L by the clamping member 2 brings it into contact with the boss 8.
  • the stroke J which brings it into contact with the boss corresponds to a precise clamping force on the support 10 of the shoe S and therefore on the shoe of the rail.
  • the purpose of the recess 9 and the curving of the upper face 12 of the shoe S is to avoid distorting the force applied to the rail by imprecise contacts of the blade with the shoe during tightening.
  • the shoe S can be assembled to the blade L by a fold 15 of the shoe beyond the support 10 and the flanges 16 and 17 which appear in FIG. 3.
  • the present invention applies to the fixing of the rails on the sleepers or any other support and more particularly on the concrete supports of the railway tracks, in curve of small radius.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Clamps And Clips (AREA)

Abstract

The pad comprises a core (11) which is inserted in the loop (4) of the said blade, a body, integral with the said core, provided with an opening for the passage of a clamping member and of a heel (6) arranged so as to constitute a stop against the edge of the rail foot, and an extension (7) disposed above the rail foot, the said pad being characterised in that its upper face comprises a boss (8) which is situated substantially at right angles to the edge of the rail foot, the said boss separating two hollowed-out parts. <IMAGE>

Description

La présente invention concerne un nouveau sabot (ou butée) utilisable pour réaliser une fixation élastique d'un rail sur une traverse et, plus particulièrement, sur une traverse en béton armé.The present invention relates to a new shoe (or stop) usable for producing an elastic fixing of a rail on a cross member and, more particularly, on a reinforced concrete cross member.

Dans les voies de chemin de fer sinueuses, la liaison des rails aux traverses ou autres supports comporte des guides ou des butées latérales dont le principal inconvénient est l'usure réciproque du rail et de la butée. Cette usure n'est évidemment pas favorable à la conservation d'une bonne géométrie de la voie et, dans certains cas, elle conduit à une détérioration partielle du rail qui rend ce dernier non réutilisable.In sinuous railway tracks, the connection of the rails to the sleepers or other supports includes guides or lateral stops, the main drawback of which is the reciprocal wear of the rail and the stop. This wear is obviously not favorable to the preservation of a good geometry of the track and, in certain cases, it leads to a partial deterioration of the rail which makes the latter non-reusable.

Les guides peuvent présenter d'autres inconvénients comme par exemple une trop grande rigidité qui les rend difficilement utilisables avec des traverses en béton et pour les butées métalliques élastiques une résistance insuffisante aux gros efforts qui sont développés, lors du passage des convois, dans les courbes de faible rayon.The guides can have other drawbacks such as too great rigidity which makes them difficult to use with concrete sleepers and for elastic metal stops insufficient resistance to large forces which are developed during the passage of convoys in curves small radius.

On utilise depuis quelques années des butées en résine synthétique qui assurent l'isolement électrique du rail par rapport à la lame métallique qui le serre sur son support. Dans leur disposition actuelle ces butées empêchent le réglage précis de la force de serrage de la lame et ne peuvent donc être utilisées dans les courbes de faible rayon. On se sert alors du dispositif décrit dans le brevet n° 2 481 334 avec lequel l'attache porte directement sur le patin du rail, et l'isolement électrique se fait en entourant le boulon de fixation d'une rondelle à canon qui se loge dans un évidement pratiqué dans la lame et dans la butée. Cet évidement les affaiblit et provoque des ruptures quand les sollicitations sont trop sévères.For a few years now, synthetic resin stops have been used which provide electrical isolation of the rail from the metal blade which clamps it on its support. In their current arrangement, these stops prevent precise adjustment of the blade clamping force and therefore cannot be used in curves with a small radius. We then use the device described in patent n ° 2 481 334 with which the fastener bears directly on the shoe of the rail, and the electrical isolation is done by surrounding the fixing bolt with a barrel washer which is housed in a recess in the blade and in the stop. This recess weakens them and causes ruptures when the stresses are too severe.

Il existe d'autre part des butées isolantes plus larges et plus coûteuses fonctionnant avec des lames différentes conçues pour répartir leur pression sur une grande surface. Elles exigent pour leur utilisation des traverses en béton spéciales ; on ne peut les appliquer aux traverses ordinaires existantes.There are also larger and more expensive insulating stops operating with different blades designed to distribute their pressure over a large area. They require special concrete sleepers for their use; they cannot be applied to existing ordinary sleepers.

La présente invention concerne une attache pour rail utilisant la lame élastique connue décrite dans le brevet français n° 2 481 334 et un sabot, ledit sabot comportant un noyau 11 qui s'insère dans la boucle 4 de ladite lame, un corps solidaire dudit noyau pourvu d'une ouverture pour le passage d'un organe de serrage et d'un talon 6 aménagé pour constituer une butée contre le bord du patin du rail, et un prolongement 7 disposé au-dessus du patin du rail, ledit sabot étant caractérisé en ce que sa face supérieure comporte un bossage 8 situé sensiblement au droit du bord du patin du rail, ledit bossage séparant deux parties évidées.The present invention relates to a rail fastener using the known elastic blade described in the patent. French No 2,481,334 and a shoe, said shoe comprising a core 11 which is inserted in the loop 4 of said blade, a body integral with said core provided with an opening for the passage of a clamping member and a heel 6 arranged to constitute a stop against the edge of the rail pad, and an extension 7 disposed above the rail pad, said shoe being characterized in that its upper face comprises a boss 8 located substantially at the edge of the rail pad, said boss separating two recessed parts.

Le noyau 11 du sabot est utilisé pour réaliser un accrochage et une mise en place dudit sabot sous la lame élastique.The core 11 of the shoe is used to attach and place said shoe under the elastic blade.

Le prolongement 7 du sabot au-dessus du patin du rail est utilisé pour réaliser l'isolement complet de la lame par rapport au rail.The extension 7 of the shoe above the shoe of the rail is used to achieve complete isolation of the blade from the rail.

Le bossage 8 est utilisé pour contrôler le serrage de la lame sur le sabot et provoquer un blocage de la butée du sabot contre le patin du rail.The boss 8 is used to control the clamping of the blade on the shoe and cause a blocking of the shoe stop against the rail pad.

Une attache conforme à l'invention est schématisée sur les figures 1 à 3.

  • - La figure 1 est une vue de profil du dispositif posé, non serré, sur le patin du rail ;
  • - La figure 2 est une vue de profil du même dispositif serré sur le patin du rail ;
  • - La figure 3 est une vue de dessus du sabot utilisé dans l'attache conforme à l'invention.
A fastener according to the invention is shown diagrammatically in FIGS. 1 to 3.
  • - Figure 1 is a side view of the device placed, not tight, on the rail pad;
  • - Figure 2 is a side view of the same device clamped on the rail pad;
  • - Figure 3 is a top view of the shoe used in the fastener according to the invention.

Selon la figure 1, l'attache conforme à l'inventior comprend une lame L et un sabot S. Elle sert à fixer le rail R sur la traverse T, une semelle élastique et isolante I étant disposée entre le rail R et la traverse T.According to Figure 1, the fastener according to the invention includes a blade L and a shoe S. It is used to fix the rail R on the cross T, an elastic and insulating sole I being disposed between the rail R and the cross T .

La lame L réalisée en acier à ressort comporte un orifice 1 pour le passage de l'organe de serrage 2 représenté dans la figure 2, une extrémité 3 en appui sur le sabot S et une extrémité enroulée en forme de boucle 4 qui sert d'articulation avec la traverse d'une part et avec le sabot S d'autre part.The blade L made of spring steel has an orifice 1 for the passage of the clamping member 2 shown in FIG. 2, one end 3 resting on the shoe S and one end wound in the form of a loop 4 which serves as articulation with the cross on the one hand and with the shoe S on the other.

Le sabot S en résine polyamide, polyacétal, ou autre matière de même élasticité comprend : un orifice 5 coaxial à l'orifice 1 de la lame pour le passage de l'organe de serrage 2, un talon 6 faisant butée latérale du rail, un prolongement 7 qui isole la lame L du rail R et comporte un bossage 8 laissant un jeu J de valeur bien déterminée entre la lame L et son sabot S, un appui 10 aménagé pour la lame, un évidement 9 qui sépare l'appui 10 du bossage 8 et un noyau 11 dont la forme s'adapte à la forme intérieure partiellement cylindrique de la boucle 4. Entre le noyau 11 et le bossage 8, la face supérieure 12 du sabot S est légèrement incurvée. La face inférieure 13 du sabot S ne vient pas en contact avec la traverse T et comporte un petit épaulement 14 qui sert à positionner la semelle isolante I.The shoe S made of polyamide, polyacetal resin, or other material of the same elasticity comprises: an orifice 5 coaxial with the orifice 1 of the blade for the passage of the clamping member 2, a heel 6 forming a lateral stop for the rail, a extension 7 which isolates the blade L of the rail R and has a boss 8 leaving a clearance J of a well-defined value between the blade L and its shoe S, a support 10 arranged for the blade, a recess 9 which separates the support 10 from the boss 8 and a core 11, the shape of which adapts to the partially cylindrical interior shape of the loop 4. Between the core 11 and the boss 8, the upper face 12 of the shoe S is slightly curved. The underside 13 of the shoe S does not come into contact with the crosspiece T and has a small shoulder 14 which serves to position the insulating sole I.

Comme on le voit sur la figure 2, le serrage de la lame L par l'organe de serrage 2 la met au contact du bossage 8. Cette lame L articulée par la boucle 4 avec la traverse T et posée sur l'appui 10 a une flexibilité bien déterminée. La course J qui la met au contact du bossage correspond à une force précise de serrage sur l'appui 10 du sabot S et donc sur le patin du rail. L'évidement 9 et l'incurvation de la face supérieure 12 du sabot S ont pour but d'éviter de fausser la force appliquée au rail par des contacts imprécis de la lame avec le sabot durant le serrage.As can be seen in FIG. 2, the clamping of the blade L by the clamping member 2 brings it into contact with the boss 8. This blade L articulated by the loop 4 with the cross-member T and placed on the support 10a well-defined flexibility. The stroke J which brings it into contact with the boss corresponds to a precise clamping force on the support 10 of the shoe S and therefore on the shoe of the rail. The purpose of the recess 9 and the curving of the upper face 12 of the shoe S is to avoid distorting the force applied to the rail by imprecise contacts of the blade with the shoe during tightening.

La force et la position de la lame étant ainsi fixées, le rail, au passage d'un train, est soumis à des efforts et des vibrations. Le mouvement du bord du patin du rail est limité vers le haut par la présence du bossage appliquée à la lame, elle-même maintenue par l'organe de serrage, il est limité latéralement par le talon 6 du sabot. De petits mouvements lui sont permis vers le bas par la compression de la semelle isolante I mais dans ces mouvements le sabot S qui reste au contact du bord du patin du rail par le talon 6 s'articule par le noyau 11 dans la boucle 4, suit tous les mouvements du rail R et ne s'use pas.The force and the position of the blade being thus fixed, the rail, when a train passes, is subjected to stresses and vibrations. The movement of the edge of the shoe of the rail is limited upwards by the presence of the boss applied to the blade, itself held by the clamping member, it is limited laterally by the heel 6 of the shoe. Small movements are allowed downwards by the compression of the insulating sole I but in these movements the shoe S which remains in contact with the edge of the rail pad by the heel 6 is articulated by the core 11 in the loop 4, follows all movements of the R rail and does not wear out.

Pour faciliter la pose et éviter toute erreur, le sabot S peut être assemblé à la lame L par un repli 15 du sabot au-delà de l'appui 10 et les rebords 16 et 17 qui apparaissent dans la figure 3.To facilitate installation and avoid any error, the shoe S can be assembled to the blade L by a fold 15 of the shoe beyond the support 10 and the flanges 16 and 17 which appear in FIG. 3.

La présente invention s'applique à la fixation des rails sur les traverses ou tout autre support et plus particulièrement sur les supports en béton des voies ferrées, en courbe de faible rayon.The present invention applies to the fixing of the rails on the sleepers or any other support and more particularly on the concrete supports of the railway tracks, in curve of small radius.

Claims (2)

1. Attache pour rail utilisant une lame élastique connue telle que décrite dans le brevet français 2.481.334 et un sabot, ledit sabot comportant un noyau (11) qui s'insère dans la boucle (4) de ladite lame, un corps, solidaire dudit noyau, pourvu d'une ouverture pour la passage d'un organe de serrage et d'un talon (6) ménagé pour consituter une butée contre le bord du patin du rail, et un prolongement (7) disposé au-dessus du patin du rail, ledit sabot étant caractérisé en ce que sa face supérieure comporte un bossage (8) situé sensiblement au droit du bord du patin du rail, ledit bossage séparant deux parties évidées, ledit bossage (8) étant serré par la lame pour contrôler le serrage de la lame sur le sabot et provoquer un blocage de la butée du sabot contre le patin du rail.1. Fastener for rail using a known elastic blade as described in French patent 2,481,334 and a shoe, said shoe comprising a core (11) which fits into the loop (4) of said blade, a body, integral of said core, provided with an opening for the passage of a tightening member and a heel (6) arranged to constitute a stop against the edge of the rail pad, and an extension (7) disposed above the pad of the rail, said shoe being characterized in that its upper face comprises a boss (8) located substantially at the right of the edge of the rail pad, said boss separating two recessed parts, said boss (8) being clamped by the blade to control the clamping of the blade on the shoe and causing a blocking of the shoe stop against the rail pad. 2. Attache élastique selon la revendication 1, caractérisée en ce que la lame et son sabot sont maintenus assemblés par un repli et des rebords situés autour dudit appui.2. Elastic fastener according to claim 1, characterized in that the blade and its shoe are held together by a fold and flanges located around said support.
EP84401958A 1983-10-05 1984-10-01 Pad for an elastic rail fastener Withdrawn EP0138691A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8315869 1983-10-05
FR8315869A FR2553122B1 (en) 1983-10-05 1983-10-05 SHOE FOR ELASTIC RAIL FASTENER

Publications (1)

Publication Number Publication Date
EP0138691A1 true EP0138691A1 (en) 1985-04-24

Family

ID=9292852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401958A Withdrawn EP0138691A1 (en) 1983-10-05 1984-10-01 Pad for an elastic rail fastener

Country Status (10)

Country Link
EP (1) EP0138691A1 (en)
JP (1) JPS60148902A (en)
KR (1) KR850003743A (en)
BR (1) BR8405012A (en)
ES (1) ES290830Y (en)
FR (1) FR2553122B1 (en)
GR (1) GR80526B (en)
MA (1) MA20248A1 (en)
OA (1) OA07831A (en)
PT (1) PT79325B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295178A (en) * 1994-11-16 1996-05-22 Pandrol Ltd Electrical insulator for railway rail mounting clip
ES2115427A1 (en) * 1994-01-26 1998-06-16 Red Nac Ferrocarriles Espan Improved insulating piece for elastic securing of rails on two-part crossmembers (sleepers)
EP3551800A4 (en) * 2016-12-07 2020-06-10 HR System Hungary Zrt. Rail mounting device and method for fixing rails to reinforced concrete railway sleeper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB972678A (en) * 1961-01-10 1964-10-14 P C C Improvements in and relating to an elastically yieldable fastener for fastening rails on ties
US3581990A (en) * 1968-10-23 1971-06-01 Syntex Rubber Corp Rail mounting assembly
FR2315569A1 (en) * 1975-06-26 1977-01-21 Sonneville Roger RAIL SUPPORT AND FIXING DEVICE
US4274582A (en) * 1979-09-04 1981-06-23 True Temper Corporation Separate insulator pad between a clip and a railroad rail
FR2481334A1 (en) * 1980-04-24 1981-10-30 Sncf Clip securing rail to sleeper - includes strip and wedge which bear onto and abut rail flange respectively
GB2116612A (en) * 1982-02-15 1983-09-28 Pandrol Ltd Electrically insulating railway rails

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB972678A (en) * 1961-01-10 1964-10-14 P C C Improvements in and relating to an elastically yieldable fastener for fastening rails on ties
US3581990A (en) * 1968-10-23 1971-06-01 Syntex Rubber Corp Rail mounting assembly
FR2315569A1 (en) * 1975-06-26 1977-01-21 Sonneville Roger RAIL SUPPORT AND FIXING DEVICE
US4274582A (en) * 1979-09-04 1981-06-23 True Temper Corporation Separate insulator pad between a clip and a railroad rail
FR2481334A1 (en) * 1980-04-24 1981-10-30 Sncf Clip securing rail to sleeper - includes strip and wedge which bear onto and abut rail flange respectively
GB2116612A (en) * 1982-02-15 1983-09-28 Pandrol Ltd Electrically insulating railway rails

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2115427A1 (en) * 1994-01-26 1998-06-16 Red Nac Ferrocarriles Espan Improved insulating piece for elastic securing of rails on two-part crossmembers (sleepers)
GB2295178A (en) * 1994-11-16 1996-05-22 Pandrol Ltd Electrical insulator for railway rail mounting clip
US5678762A (en) * 1994-11-16 1997-10-21 Pandrol Limited Railway rail fastening assemblies including resilient railway rail fastening clips and associated insulators
GB2295178B (en) * 1994-11-16 1998-04-29 Pandrol Ltd Railway rail fastening assemblies including resilient railway rail fastening clips and associated insulators
EP3551800A4 (en) * 2016-12-07 2020-06-10 HR System Hungary Zrt. Rail mounting device and method for fixing rails to reinforced concrete railway sleeper

Also Published As

Publication number Publication date
MA20248A1 (en) 1985-07-01
GR80526B (en) 1985-02-04
KR850003743A (en) 1985-06-26
OA07831A (en) 1986-11-20
ES290830Y (en) 1986-12-16
PT79325A (en) 1984-11-01
PT79325B (en) 1986-08-19
ES290830U (en) 1986-04-16
FR2553122B1 (en) 1986-03-28
FR2553122A1 (en) 1985-04-12
JPS60148902A (en) 1985-08-06
BR8405012A (en) 1985-08-20

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Inventor name: DUCHEMIN, MICHEL