EP0123666B1 - Fastening device for stock rails with a slide chair for railway switches - Google Patents

Fastening device for stock rails with a slide chair for railway switches Download PDF

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Publication number
EP0123666B1
EP0123666B1 EP84870048A EP84870048A EP0123666B1 EP 0123666 B1 EP0123666 B1 EP 0123666B1 EP 84870048 A EP84870048 A EP 84870048A EP 84870048 A EP84870048 A EP 84870048A EP 0123666 B1 EP0123666 B1 EP 0123666B1
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EP
European Patent Office
Prior art keywords
recess
base plate
branch
flange
situated
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.)
Expired
Application number
EP84870048A
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German (de)
French (fr)
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EP0123666A1 (en
Inventor
Christian Renaud
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.)
FORGES DE COURCELLES-CENTRE SA
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FORGES DE COURCELLES-CENTRE SA
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Priority to AT84870048T priority Critical patent/ATE19800T1/en
Publication of EP0123666A1 publication Critical patent/EP0123666A1/en
Application granted granted Critical
Publication of EP0123666B1 publication Critical patent/EP0123666B1/en
Expired 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
    • E01B7/00—Switches; Crossings
    • E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/02—Tongues; Associated constructions
    • 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
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/44—Fastening the rail on the tie-plate
    • E01B9/46—Fastening the rail on the tie-plate by clamps
    • E01B9/48—Fastening the rail on the tie-plate by clamps by resilient steel clips
    • E01B9/483—Fastening the rail on the tie-plate by clamps by resilient steel clips the clip being a shaped bar

Definitions

  • the pressure surface comprises, towards the edge of the base plate closest to the inlet of the recess, a profiled boss.
  • the orifice other than the inlet of the second recess is formed by the extension of the second recess over the entire length of the rib.
  • the orifice other than the inlet of the second recess is formed by the communication between said second recess, over at least part of its length, and a channel formed in the underside of the plate base, under and parallel to said recess.
  • the pressure surface comprises, towards the edge of the base plate closest to the inlet of the second recess, a profiled boss.
  • This bearing surface 9 is delimited between a left rib 10 (on the side opposite the needle blade) whose vertical face 11 is 170 mm from the left edge of the plate and a right rib 12 (on the side needle blade) located 150 mm to the right of the rib 10.
  • a recess 13 of cylindrical shape is formed in the rib 10. This recess 13 extends over half the width of the base plate 1 to the upper face 14 from which it opens at 15 into a region 16 where the base plate 1 is thinner than around the entrance to the recess 13 which is thus ventilated.
  • This recess 13 cooperates with a fixing spring 18 in the form of a loop, and comprising three branches 17, 21, 22 substantially parallel to one another.
  • the various useful surfaces of the base plate are produced in accordance with the standards and are connected to each other by the various roundings required.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Rolling Contact Bearings (AREA)
  • Special Chairs (AREA)
  • Seats For Vehicles (AREA)

Abstract

1. Apparatus for fastening a stock rail with slide chair (3) for the switch blade (5), in which apparatus a base plate (1) has means intended for fastening the stock rail (7) and for guiding the switch blade (5) with the aid of a slide chair (3) having a nose (35) overlapping the stock rail flange on the switch blade side, characterized in that said base plate (1) has, for the flange (8) of the stock rail (7), a support surface (9) delimited by two ribs (10, 12) parallel to the longitudinal axis of the track, and for the fastening of said flange (8) has a recess (24) disposed longitudinally in the rib (12) situated on the switch blade (5) side and adapted to cooperate with a loop-shaped fastening spring (4) comprising, from one end to the other, a first branch (28), a first curved portion, a second branch (31), a second curved portion, and a third branch (32), the three branches (28, 31, 32) being substantially parallel to one another, the first branch (28) being housed in the recess (24), the second branch (31) being supported on the top face of the base plate against a pressure surface (29) situated on the opposite side of said rib (12) relative to the flange (8) of the stock rail (7), the third branch (32) bearing against the flange (8) of the stock rail (7), applying a substantially normal pressure to said flange, said spring (4) having a flattened shape in order that its highest part will be situated below the upper surface (34) of the slide chair (3), the latter having a shape which provides the access necessary for fitting the spring (4).

Description

La présente invention concerne les selles de fixation des contre-aiguilles et les coussinets de glissement dans les aiguillages de chemin de fer.The present invention relates to the saddles for fixing the counter-needles and the sliding bearings in the railway switches.

Dans les voies de chemin de fer, la fixation des rails se fait à l'intervention de selles, elles-mêmes immobilisées sur les traverses de la voie par des tire-fond. Le rail est fixé sur la selle de manière soit rigide par des boulons, soit élastique par des ressorts exerçant une force de l'ordre de 10000 N. Ces ressorts de fixation sont des pinces en gros fil d'acier incurvé en boucle. Un type fréquent de ressort de fixation est, par exemple, celui qui est fabriqué par la Société Pandrol et qui fait l'objet du brevet belge N° 747.611.In railway tracks, the rails are fixed using saddles, which are themselves immobilized on the sleepers of the track by lag screws. The rail is fixed to the saddle either rigidly by bolts, or elastic by springs exerting a force of the order of 10,000 N. These fixing springs are clamps made of large curved steel wire in a loop. A frequent type of fixing spring is, for example, that which is manufactured by the company Pandrol and which is the subject of Belgian patent N ° 747,611.

La fixation des rails devient toutefois un problème délicat dans les aiguillages. En effet, à cet endroit, la lame d'aiguille en venant s'apposer au rail, appelé à cet endroit contre-aiguille, ne laisse disponible qu'une faible hauteur au-dessus du patin de rail pour les organes de fixation. De surcroît, en raison des efforts considérables exercés sur la voie par le poids et la vitesse des convois, on en est arrivé à utiliser fréquemment des lames d'aiguilles elles-mêmes munies d'un patin qui se déplace à la surface d'un coussinet de glissement. Bien que les lames d'aiguilles puissent être soutenues par des coussinets de glissement portés par des traverses spéciales s'ajoutant aux traverses normales de la voie, il est essentiel de soutenir les lames d'aiguilles également par un coussinet de glissement sur les traverses normales. Il devient alors extrêmement difficile de réaliser une fixation élastique du rail dans l'espace subsistant sous le coussinet de glissement, lui-même sous-jacent au patin de la lame d'aiguille.The fixing of the rails however becomes a delicate problem in the switches. In fact, at this point, the needle blade coming into contact with the rail, called at this point against the needle, leaves available only a small height above the rail shoe for the fixing members. In addition, due to the considerable efforts exerted on the track by the weight and speed of the convoys, we have come to frequently use needle blades themselves provided with a shoe which moves on the surface of a sliding pad. Although the needle blades can be supported by sliding bearings carried by special sleepers in addition to the normal sleepers of the track, it is essential to support the needle blades also by a sliding bearing on the normal sleepers . It then becomes extremely difficult to achieve an elastic fixing of the rail in the space remaining under the sliding pad, itself underlying the shoe of the needle blade.

Différents systèmes ont été mis au point pour résoudre cette difficulté. Ainsi le système décrit dans le brevet belge N° 826.013 comporte un coussinet de glissement qui est porté, avec la contre-aiguille, par une plaque de base commune et qui comporte un évidement à l'intérieur duquel est logé un organe de fixation élastique dont la pression s'exerce sur le patin de rail du côté de la lame d'aiguille, l'autre côté du patin étant retenu de façon quelconque. Un coussinet de glissement de ce genre en forme de boîte faite de tôle forte constitue, par conséquent, une pièce distincte qui est fixée à la plaque de base, par exemple par un cordon de soudure autogène. Untel système présente des inconvénients de deux ordres, à savoir une solidité évidemment inférieure à celle d'un coussinet de glissement qui serait venu d'une pièce avec sa plaque de base, d'une part, et un prix de fabrication relativement élevé, d'autre part, en raison de nombreuses opérations qu'il faut exécuter.Different systems have been developed to solve this difficulty. Thus the system described in Belgian patent N ° 826.013 comprises a sliding bearing which is carried, with the counter-needle, by a common base plate and which comprises a recess inside which is housed an elastic fixing member of which pressure is exerted on the rail shoe on the side of the needle blade, the other side of the shoe being retained in any way. A sliding pad of this kind in the form of a box made of heavy plate therefore constitutes a separate piece which is fixed to the base plate, for example by an autogenous weld bead. Such a system has drawbacks of two kinds, namely a solidity which is obviously lower than that of a sliding bearing which would have come in one piece with its base plate, on the one hand, and a relatively high manufacturing price, d on the other hand, because of the many operations that must be performed.

Il est donc évident qu'une solution où un coussinet de glissement pour la lame d'aiguille fait corps avec une plaque de base portant la contre-aiguille est plus avantageuse: solidité accrue de par une fabrication monobloc, coût plus faible en raison de la réduction des opérations d'usinage. L'intérêt serait augmenté si les organes de fixation du patin de rail étaient faciles à poser: économie de main-d'oeuvre.It is therefore obvious that a solution where a sliding pad for the needle blade is integral with a base plate carrying the counter-needle is more advantageous: increased solidity by a monobloc manufacture, lower cost due to the reduction of machining operations. The interest would be increased if the fasteners of the rail shoe were easy to install: saving labor.

L'invention apporte une solution satisfaisante à ces difficultés au moyen d'une plaque de base avec coussinet de glissement pour aiguillage de chemin de fer, dans laquelle les différents organes nécessaires sont combinés de façon à assurer un guidage sûr de la lame d'aiguille en ménageant néanmoins un espace suffisant pour la pose aisée de moyens de fixation élastique du patin de rail.The invention provides a satisfactory solution to these difficulties by means of a base plate with sliding bushing for railway switch, in which the various necessary members are combined so as to ensure safe guiding of the needle blade. nevertheless providing sufficient space for easy installation of elastic fixing means of the rail pad.

L'invention a pour objet un appareil de fixation de contre-aiguille à coussinet de glissement pour la lame d'aiguille, dans lequel une plaque de base comporte des organes destinés à la fixation de la contre-aiguille et au guidage de la lame d'aiguille à l'aide d'un coussinet de glissement comportant un bec chevauchant le patin de contre-aiguille du côté de la lame d'aiguille; dans l'appareil suivant l'invention, la plaque de base présente, pour le patin de la contre-aiguille, une surface d'appui délimitée par deux nervures parallèles à l'axe longitudinal de voie, et, pour la fixation dudit patin, un évidement ménagé longitudinalement dans la nervure située du côté de la lame d'aiguille et apte à coopérer avec un ressort de fixation en forme de boucle comportant, d'une extrémité à l'autre, une première branche, une première partie courbe, une deuxième branche, une deuxième partie courbe et une troisième branche, les trois branches étant sensiblement parallèles entre elles, la première branche étant logée dans l'évidement, la seconde branche prenant appui sur la face supérieure de la plaque de base contre la surface de pression située du côté opposé de ladite nervure par rapport au patin de la contre-aiguille, la troisième branche prenant appui sur le patin de la contre-aiguille en exerçant sur ce dernier une pression sensiblement normale, ledit ressort ayant une forme surbaissée afin que sa partie la plus haute soit située en contrebas de la surface supérieure du coussinet de glissement, celui-ci ayant une forme qui dégage l'accès nécessaire à la pose du ressort.The invention relates to an apparatus for fixing a needle against a sliding pad for the needle blade, in which a base plate comprises members intended for fixing the needle against and guiding the blade. 'needle using a sliding pad having a spout overlapping the needle guide pad on the side of the needle blade; in the device according to the invention, the base plate has, for the shoe of the counter-needle, a bearing surface delimited by two ribs parallel to the longitudinal axis of the track, and, for fixing said shoe, a recess formed longitudinally in the rib located on the side of the needle blade and able to cooperate with a fixing spring in the form of a loop comprising, from one end to the other, a first branch, a first curved part, a second branch, a second curved part and a third branch, the three branches being substantially parallel to each other, the first branch being housed in the recess, the second branch bearing on the upper face of the base plate against the pressure surface located on the opposite side of said rib relative to the pad of the counter-needle, the third branch bearing on the pad of the counter-needle by exerting on the latter a substantially normal pressure, said spring having a lowered shape so that its highest part is located below the upper surface of the sliding bearing, the latter having a shape which gives off the access necessary for fitting the spring.

Dans une forme de réalisation préférée, un orifice autre que l'entrée de l'évidement ménagé dans la nervure située du côté de la lame d'aiguille fait communiquer celui-ci avec l'extérieur de la plaque de base.In a preferred embodiment, an orifice other than the entry of the recess in the rib located on the side of the needle blade makes it communicate with the outside of the base plate.

Dans une forme de réalisation particulière, l'orifice autre que l'entrée de l'évidement ménagé dans la nervure située du côté de la lame d'aiguille est formé par le prolongement de l'évidement jusqu'au côté opposé de la plaque de base.In a particular embodiment, the orifice other than the entry of the recess formed in the rib situated on the side of the needle blade is formed by the extension of the recess to the opposite side of the plate. based.

Dans une autre forme de réalisation particulière, l'orifice autre que l'entrée de l'évidement ménagé dans la nervure située du côté de la lame d'aiguille est formé par la communication entre ledit évidement, sur au moins une partie de sa longueur, et un canal ménagé dans la face inférieure de la plaque de base, sous ledit évidement et parallèlement à celui-ci.In another particular embodiment, the orifice other than the entry of the recess made in the rib situated on the side of the needle blade is formed by the communication between said recess, over at least part of its length , and a channel formed in the underside of the base plate, under said recess and parallel to it.

Dans une autre forme de réalisation particulière, l'évidement ménagé dans la nervure située du côté de la lame d'aiguille est en forme de U inversé débouchant à la face inférieure de la plaque de base.In another particular embodiment, the recess in the rib located on the side of the needle blade is in the form of an inverted U opening out on the underside of the base plate.

Dans une forme de réalisation avantageuse, la surface de pression comporte, vers le bord de la plaque de base le plus proche de l'entrée de l'évidement, un bossage profilé.In an advantageous embodiment, the pressure surface comprises, towards the edge of the base plate closest to the inlet of the recess, a profiled boss.

L'invention offre une solution avantageuse au problème consistant à réaliser une fixation élastique du patin de la contre-aiguille, dans l'espace subsistant sous le niveau de la surface de glissement du coussinet.The invention offers an advantageous solution to the problem of producing an elastic fixing of the pad of the counter-needle, in the space remaining below the level of the sliding surface of the bearing.

La fixation élastique du patin de la contre-aiguille, du côté opposé à la lame d'aiguille, peut également être réalisée de la façon exposée plus haut.The elastic fixing of the counter-needle shoe, on the side opposite to the needle blade, can also be carried out as described above.

Dans ce cas, l'appareil suivant l'invention est réalisé de façon telle que la plaque de base comporte, en outre, un deuxième évidement ménagé longitudinalement dans la nervure située du côté opposé à la lame d'aiguille, et apte à coopérer avec un ressort de fixation en forme de boucle comportant, d'une extrémité à l'autre, une première branche, une première partie courbe, une deuxième branche, une deuxième partie courbe et une troisième branche, les trois branches étant sensiblement parallèles entre elles, la première branche étant logée dans ce deuxième évidement, la seconde branche prenant appui sur la face supérieure de la plaque de base contre une surface de pression située du côté opposé de ladite nervure par rapport au patin de la contre-aiguille, la troisième branche prenant appui sur le patin de la contre-aiguille en exerçant sur ce dernier une pression sensiblement normale.In this case, the apparatus according to the invention is produced in such a way that the base plate further comprises a second recess formed longitudinally in the rib situated on the side opposite to the needle blade, and able to cooperate with a loop-shaped fixing spring comprising, from one end to the other, a first branch, a first curved part, a second branch, a second curved part and a third branch, the three branches being substantially parallel to one another, the first branch being housed in this second recess, the second branch bearing on the upper face of the base plate against a pressure surface situated on the opposite side of said rib relative to the pad of the counter-needle, the third branch taking support on the pad of the counter-needle by exerting on the latter a substantially normal pressure.

Cet évidement ménagé dans la nervure située du côté opposé à la lame d'aiguille comporte avantageusement un orifice, autre que l'entrée de cet évidement, qui fait communiquer celui-ci avec l'extérieur de la plaque de base.This recess formed in the rib situated on the side opposite to the needle blade advantageously comprises an orifice, other than the inlet of this recess, which makes it communicate with the outside of the base plate.

Suivant une forme de réalisation particulière, l'orifice autre que l'entrée du deuxième évidement est formé par le prolongement du deuxième évidement sur toute la longueur de la nervure.According to a particular embodiment, the orifice other than the inlet of the second recess is formed by the extension of the second recess over the entire length of the rib.

Suivant une autre forme de réalisation particulière, l'orifice autre que l'entrée du deuxième évidement est formé par la communication entre ledit deuxième évidement, sur au moins une partie de sa longueur, et un canal ménagé dans la face inférieure de la plaque de base, sous ledit évidement et parallèlement à celui-ci.According to another particular embodiment, the orifice other than the inlet of the second recess is formed by the communication between said second recess, over at least part of its length, and a channel formed in the underside of the plate base, under and parallel to said recess.

Suivant une autre forme de réalisation particulière, le deuxième évidement est en forme de U inversé débouchant à la face inférieure de la plaque de base.According to another particular embodiment, the second recess is in the form of an inverted U opening onto the underside of the base plate.

Dans une forme d'exécution avantageuse, la surface de pression comporte, vers le bord de la plaque de base le plus proche de l'entrée du deuxième évidement, un bossage profilé.In an advantageous embodiment, the pressure surface comprises, towards the edge of the base plate closest to the inlet of the second recess, a profiled boss.

Dans une forme d'exécution préférée, la plaque de base et le coussinet de glissement sont réalisés d'une seule pièce.In a preferred embodiment, the base plate and the sliding bearing are made in one piece.

La plaque de base présente avantageusement, dans la région où le coussinet de glissement est contigu au ressort situé du côté de la lame d'aiguille, des régions de plus grande largeur, symétriques par rapport à l'axe longitudinal de la plaque de base, donnant une largeur appropriée au coussinet de glissement et à la région occupée par le ressort.The base plate advantageously has, in the region where the sliding bearing is contiguous to the spring situated on the side of the needle blade, regions of greater width, symmetrical with respect to the longitudinal axis of the base plate, giving an appropriate width to the sliding pad and the region occupied by the spring.

Dans une forme d'exécution particulière, la surface d'appui pour le patin de la contre-aiguille présente un dévers en direction de l'axe de voie.In a particular embodiment, the bearing surface for the pad of the counter-needle has a slope in the direction of the track axis.

Dans sa forme préférée, une plaque de base suivant l'invention, avec coussinet de glissement intégré permettant la fixation de la contre-aiguille et le mouvement de la lame d'aiguille, offre tous les avantages d'une réalisation monobloc, d'un usinage respectant bien les positions et orientations relatives, d'un montage élastique de la contre-aiguille et d'une mise en oeuvre facile sur la voie du fait que les ressorts de fixation peuvent être mis en place en étant simplement chassés au marteau et enlevés de même en cas de nécessité.In its preferred form, a base plate according to the invention, with integrated sliding pad allowing the fixing of the counter-needle and the movement of the needle blade, offers all the advantages of a monobloc embodiment, of a machining respecting the relative positions and orientations, of an elastic mounting of the counter-needle and of an easy implementation on the way of the fact that the fixing springs can be put in place by simply being driven with a hammer and removed the same if necessary.

On trouvera ci-après la description d'une forme de réalisation spécifique de l'appareil de fixation de contre-aiguille à coussinet de glissement pour lame d'aiguille conforme à l'invention.The following is a description of a specific embodiment of the slip-needle counter-needle fixing device for a needle blade according to the invention.

Dans les dessins:

  • la fig. 1 est une vue de dessus de l'appareil conforme à l'invention, et
  • la fig. 2 est une vue de face en élévation.
In the drawings:
  • fig. 1 is a top view of the apparatus according to the invention, and
  • fig. 2 is a front view in elevation.

Comme le montrent les fig. 1 et 2, l'appareil conforme à l'invention comprend une plaque de base 1 oblongue généralement rectangulaire en acier, dont la partie d'âme a une épaisseur de 13 mm, la longueur hors tout étant de 610 mm et la largeur étant de 130 mm avec un élargissement de 25 mm de part et d'autre dans la région 2 où le coussinet de glissement 3 est contigu au ressort 4 le plus proche de la lame d'aiguille 5 (fig. 2). La plaque de base 1 est fixée sur la traverse de voie (non représentée) par quatre tire-fond (non représentés) insérés dans les trous 6 groupés par paires aux extrémités de la plaque. La contre-aiguille 7 (fig. 2) repose par son patin 8 sur une surface de selle ou surface d'appui 9 inclinée de la valeur habituelle de 1 /20 en direction de l'axe de la voie. Cette surface d'appui 9 est délimitée entre une nervure de gauche 10 (du côté opposé à la lame d'aiguille) dont la face verticale 11 se trouve à 170 mm du bord gauche de la plaque et une nervure de droite 12 (du côté de la lame d'aiguille) située à 150 mm à droite de la nervure 10. Un évidement 13 de forme cylindrique est ménagé dans la nervure 10. Cet évidement 13 s'étend sur la moitié de la largeur de la plaque de base 1 à la face supérieure 14 de laquelle il débouche en 15 dans une région 16 où la plaque de base 1 est plus mince qu'autour de l'entrée de l'évidement 13 qui se trouve ainsi ventilé. Cet évidement 13 coopère avec un ressort de fixation 18 en forme de boucle, et comportant trois branches 17, 21, 22 sensiblement parallèles entre elles. La première branche 17 de ce ressort 18 est logée dans l'évidement 13, la deuxième branche 21 de ce ressort prend appui sur la face supérieure de la plaque de base 1 contre une surface de pression 19, la troisième branche 22 prend appui sur le patin 8 de la contre-aiguille 7 en exerçant sur ce dernier une pression sensiblement normale. La surface de pression 19 est munie d'un bossage 20.As shown in fig. 1 and 2, the apparatus according to the invention comprises a generally rectangular oblong base plate 1 of steel, the core portion of which has a thickness of 13 mm, the overall length being 610 mm and the width being 130 mm with a 25 mm widening on both sides in region 2 where the sliding pad 3 is contiguous to the spring 4 closest to the needle blade 5 (fig. 2). The base plate 1 is fixed to the rail crosspiece (not shown) by four lag screws (not shown) inserted in the holes 6 grouped in pairs at the ends of the plate. The counter-needle 7 (fig. 2) rests by its shoe 8 on a saddle surface or bearing surface 9 inclined by the usual value of 1/20 in the direction of the axis of the track. This bearing surface 9 is delimited between a left rib 10 (on the side opposite the needle blade) whose vertical face 11 is 170 mm from the left edge of the plate and a right rib 12 (on the side needle blade) located 150 mm to the right of the rib 10. A recess 13 of cylindrical shape is formed in the rib 10. This recess 13 extends over half the width of the base plate 1 to the upper face 14 from which it opens at 15 into a region 16 where the base plate 1 is thinner than around the entrance to the recess 13 which is thus ventilated. This recess 13 cooperates with a fixing spring 18 in the form of a loop, and comprising three branches 17, 21, 22 substantially parallel to one another. The first branch 17 of this spring 18 is housed in the recess 13, the second branch 21 of this spring is supported on the upper face of the base plate 1 against a pressure surface 19, the third branch 22 is supported on the pad 8 of the counter-needle 7 by exerting on the latter a substantially normal pressure. The pressure surface 19 is provided with a boss 20.

Un autre évidement 24 est ménagé sous la nervure de droite 12 au même alésage que l'évidement 13, à une hauteur, par rapport à la face inférieure 25 de la plaque de base 1, qui est telle que le plan fictif tangent à la partie haute des évidements 13 et 24 soit parallèle à la surface d'appui 9 et confondu avec celle-ci. Un canal 26, dont le profil est en arc de cercle, est ménagé dans la face inférieure 25 de la plaque de base 1 entre un long côté et l'autre de celle-ci, avec une ampleur suffisante pour que le contour du canal et celui de l'évidement 24 comportent une zone commune 27, de sorte que l'évidement 24 se trouve ainsi ventilé. Cet évidement 24 coopère avec un ressort de fixation 4 analogue au ressort de fixation 18, dont la première branche 28 est logée dans l'évidement 24, la deuxième branche 31 prend appui sur la face supérieure de la plaque de base 1 contre une surface de pression 29, la troisième branche 32 prend appui sur le patin 8 de la contre-aiguille 7. La surface de pression 29 est munie d'un bossage 30. Il convient de noter que l'évidement 24 est ménagé dans la région élargie 2 de la plaque de base 1. La plaque de base 1 porte, pour la lame d'aiguille 5, un coussinet de glissement 3 dont la face supérieure 34 est située à 64 mm au-dessus de la face inférieure de la plaque de base 1. Le coussinet 3 présente un bec 35 recouvrant d'environ 40 mm l'aile 36 du patin 8 de la contre-aiguille 7, du côté de la lame d'aiguille 5. La face 34 du coussinet 3 sur laquelle a lieu le mouvement de la lame d'aiguille 5 a une longueur d'environ 258 mm. Comme le montre la fig. 1, la face 34 du coussinet 3 comprend une partie 37 dont la largeur est de 125 mm dans la partie de droite de la plaque de base 1 et une partie 38 continuant la partie 37 dans la région 2, en face du ressort 4. La longueur de 258 mm, bec compris, du coussinet 3 laisse un espace suffisant pour la pose des tire-fond de droite. La lame d'aiguille 5 prend appui par son patin 39 (fig. 2) sur la face 34. La contre-aiguille 7 est ainsi fixée élastiquement sur la surface d'appui 9 par les branches 32 et 22 des ressorts en fil d'acier 4 et 18, dont au moins celui contigu à la lame d'aiguille 5 est profilé suffisamment plat pour ne pas faire saillie au-dessus de la face 33 du coussinet 3.Another recess 24 is formed under the right rib 12 with the same bore as the recess 13, at a height, relative to the underside 25 of the base plate 1, which is such that the imaginary plane tangent to the upper part of the recesses 13 and 24 is parallel to the bearing surface 9 and coincides with that -this. A channel 26, the profile of which is in an arc of a circle, is formed in the lower face 25 of the base plate 1 between a long side and the other thereof, with a sufficient width so that the contour of the channel and that of the recess 24 have a common area 27, so that the recess 24 is thus ventilated. This recess 24 cooperates with a fixing spring 4 similar to the fixing spring 18, the first branch 28 of which is housed in the recess 24, the second branch 31 bears on the upper face of the base plate 1 against a surface of pressure 29, the third branch 32 bears on the shoe 8 of the counter-needle 7. The pressure surface 29 is provided with a boss 30. It should be noted that the recess 24 is formed in the enlarged region 2 of the base plate 1. The base plate 1 carries, for the needle blade 5, a sliding bearing 3, the upper face 34 of which is located 64 mm above the lower face of the base plate 1. The pad 3 has a spout 35 covering about 40 mm the wing 36 of the pad 8 of the counter-needle 7, on the side of the needle blade 5. The face 34 of the pad 3 on which the movement of the needle blade 5 has a length of about 258 mm. As shown in fig. 1, the face 34 of the pad 3 comprises a part 37 whose width is 125 mm in the right part of the base plate 1 and a part 38 continuing the part 37 in the region 2, opposite the spring 4. The length 258 mm, including spout, of pad 3 leaves enough space for fitting the right lag bolts. The needle blade 5 is supported by its shoe 39 (fig. 2) on the face 34. The counter-needle 7 is thus fixed elastically on the bearing surface 9 by the branches 32 and 22 of the wire springs. steel 4 and 18, of which at least that contiguous to the needle blade 5 is profiled sufficiently flat so as not to protrude above the face 33 of the bearing 3.

Les diverses surfaces utiles de la plaque de base sont réalisées en conformité avec les normes et se raccordent les unes avec les autres par les différents arrondis nécessaires.The various useful surfaces of the base plate are produced in accordance with the standards and are connected to each other by the various roundings required.

La forme de réalisation préférée décrite ci- dessus de l'appareil conforme à l'invention offre donc tous les avantages d'une grande solidité du fait qu'il est constitué par une seule pièce d'acier, d'une fabrication peu onéreuse du fait qu'il peut être façonné en majeure partie par forgeage et d'une économie de main-d'oeuvre sur le chantier de voie du fait que les organes de fixation du patin sont de simples ressorts chassés en place à coups de marteau et éventuellement ôtés de façon tout aussi simple, l'appareil convenant donc pour un montage élastique des voies.The preferred embodiment described above of the apparatus according to the invention therefore offers all the advantages of great solidity because it consists of a single piece of steel, of an inexpensive manufacture of the fact that it can be shaped for the most part by forging and saving labor on the track site due to the fact that the skid fixing members are simple springs driven into place with hammer blows and possibly just as easily removed, the device therefore suitable for elastic mounting of the tracks.

Claims (15)

1. Apparatus for fastening a stock rail with slide chair (3) for the switch blade (5), in which apparatus a base plate (1) has means intended for fastening the stock rail (7) and for guiding the switch blade (5) with the aid of a slide chair (3) having a nose (35) overlapping the stock rail flange on the switch blade side, characterized in that said base plate (1) has, for the flange (8) of the stock rail (7), a support surface (9) delimited by two ribs (10,12) parallel to the longitudinal axis of the track, and for the fastening of said flange (8) has a recess (24) disposed longitudinally in the rib (12) situated on the switch blade (5) side and adapted to cooperate with a loop-shaped fastening spring (4) comprising, from one end to the other, a first branch (28), a first curved portion, a second branch (31), a second curved portion, and a third branch (32), the three branches (28, 31,32) being substantially parallel to one another, the first branch (28) being housed in the recess (24), the second branch (31 ) being supported on the top face of the base plate against a pressure surface (29) situated on the opposite side of said rib (12) relative to the flange (8) of the stock rail (7), the third branch (32) bearing against the flange (8) of the stock rail (7), applying a substantially normal pressure to said flange, said spring (4) having a flattened shape in order that its highest part will be situated below the upper surface (34) of the slide chair (3), the latter having a shape which provides the access necessary for fitting the spring (4).
2. Apparatus according to Claim 1, characterized in that an opening (27) other than the entrance of the recess (24) provided in the rib (12) situated on the switch blade (5) side brings said recess into communication with the outside of the base plate (1).
3. Apparatus according to Claim 2, characterized in that the opening (27) other than the entrance of the recess (24) provided in the rib (12) situated on the switch blade (5) side is formed by the extension of the recess (24) to the opposite side of the base plate (1).
4. Apparatus according to Claim 2, characterized in that the opening (27) other than the entrance of the recess (24) provided in the rib (12) situated on the switch blade (5) side is formed by the communication between the recess (24), over at least part of its length, and a channel (26) provided in the bottom face (25) of the base plate (1), below and parallel to the recess (24).
5. Apparatus according to Claim 1, characterized in that the recess (24) provided in the rib (12) situated on the switch blade (5) side has the shape of an inverted U leading out at the bottom face (25) of the base plate (1).
6. Apparatus according to any one of Claims 12 to 5, characterized in that the pressure surface (29) is provided, towards the edge of the base plate (1) nearest the entrance of the recess (24), with a profiled boss (30).
7. Apparatus according to any one of Claims 1 to 6, characterized in that the base plate (1) is in addition provided with a second recess (13) disposed longitudinally in the rib (10) situated on the opposite side to the switch blade (5) and adapted to cooperate with a loop-shaped fastening spring (18) comprising, from one end to the other, a first branch (17), a first curved portion, a second branch (21), a second curved portion, and a third branch (22), the three branches (17,21,22) being substantially parallel to one another, the first branch (17) being housed in this second recess (13), the second branch (21) being supported on the top face of the base plate against a pressure surface (19) situated on the opposite side of said rib (10) relative to the flange (8) of the stock rail (7), the third branch (22) bearing against the flange (8) of the stock rail (7), applying a substantially normal pressure to said flange.
8. Apparatus according to Claim 7, characterized in that an opening (15) other than the entrance of the second recess (13) brings the latter into communication with the outside of the base plate (1 ).
9. Apparatus according to Claim 8, characterized in that the opening (15) other than the entrance of the second recess (13) is formed by the extension of said second recess (13) over the entire length of the rib (10).
10. Apparatus according to Claim 8, characterized in that the opening (15) other than the entrance of the second recess (13) is formed by the communication between said second recess (13), over at least a part of its length, and a channel provided in the bottom face (25) of the base plate (1), below and parallel to said recess (24).
11. Apparatus according to Claim 7, characterized in that the second recess (13) has the shape of an inverted U leading out at the bottom face (25) of the base plate (1).
12. Apparatus according to any one of Claims 7 to 11, characterized in that the pressure surface (19) is provided, towards the edge of the base plate (1 ) nearest the entrance of the second recess (13), with a profiled boss (20).
13. Apparatus according to any one of Claims 1 to 12, characterized in that the base plate (1) and the slide chair (3) are made in one piece.
14. Apparatus according to any one of Claims 1 to 13, characterized in that the base plate (1) has, in the region where the slide chair (3) is contiguous to the spring (4) situated on the switch blade (5) side, regions (2) of greater width which are symmetrical in relation to the longitudinal axis of the base plate, giving an appropriate width to the slide chair (3) and to the region occupied by the spring (4).
15. Apparatus according to any one of Claims 1 to 14, characterized in that the support surface (9) for the flange (8) of the stock rail (7) has a slope in the direction of the axis of the track.
EP84870048A 1983-03-30 1984-03-29 Fastening device for stock rails with a slide chair for railway switches Expired EP0123666B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84870048T ATE19800T1 (en) 1983-03-30 1984-03-29 DEVICE FOR FIXING STOCK RAILS WITH SLIDER FOR RAILWAY SWITCHES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8305285A FR2551106B1 (en) 1983-03-30 1983-03-30 SLIDING BEARING NEEDLE FIXING APPARATUS FOR RAILWAY ROUTING
FR8305285 1983-03-30

Publications (2)

Publication Number Publication Date
EP0123666A1 EP0123666A1 (en) 1984-10-31
EP0123666B1 true EP0123666B1 (en) 1986-05-14

Family

ID=9287405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84870048A Expired EP0123666B1 (en) 1983-03-30 1984-03-29 Fastening device for stock rails with a slide chair for railway switches

Country Status (4)

Country Link
EP (1) EP0123666B1 (en)
AT (1) ATE19800T1 (en)
DE (2) DE123666T1 (en)
FR (1) FR2551106B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390084B (en) * 1988-05-20 1990-03-12 Voest Alpine Maschinenbau SOFT WITH A HEART PIECE WITH A MOVABLE MAIN AND EXTRA TIP

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2023344A (en) * 1933-04-04 1935-12-03 Lorain Steel Co Point and switch
DE2554343A1 (en) * 1975-12-03 1977-06-16 Thyssen Industrie Railway points stock rail fixing shackle - with U-shaped section and right angle bent arm resiliently locking rail foot
GB1553768A (en) * 1977-06-13 1979-10-10 Pandrol Ltd Railway tie plate

Also Published As

Publication number Publication date
DE3460141D1 (en) 1986-06-19
DE123666T1 (en) 1985-02-14
EP0123666A1 (en) 1984-10-31
FR2551106A1 (en) 1985-03-01
ATE19800T1 (en) 1986-05-15
FR2551106B1 (en) 1985-12-06

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