EP0126835A1 - Element for fastening a rail to a concrete railway sleeper - Google Patents

Element for fastening a rail to a concrete railway sleeper Download PDF

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Publication number
EP0126835A1
EP0126835A1 EP83870094A EP83870094A EP0126835A1 EP 0126835 A1 EP0126835 A1 EP 0126835A1 EP 83870094 A EP83870094 A EP 83870094A EP 83870094 A EP83870094 A EP 83870094A EP 0126835 A1 EP0126835 A1 EP 0126835A1
Authority
EP
European Patent Office
Prior art keywords
rail
face
concrete
sleeper
intended
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
EP83870094A
Other languages
German (de)
French (fr)
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EP0126835B1 (en
Inventor
René Jules Foulart
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.)
FAGROBEL SA
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FAGROBEL 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
Priority claimed from BE0/210881A external-priority patent/BE896890A/en
Application filed by FAGROBEL SA filed Critical FAGROBEL SA
Priority to AT83870094T priority Critical patent/ATE38865T1/en
Publication of EP0126835A1 publication Critical patent/EP0126835A1/en
Application granted granted Critical
Publication of EP0126835B1 publication Critical patent/EP0126835B1/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
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
    • E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
    • E01B9/303—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips the clip being a shaped bar

Definitions

  • the invention relates to a metal element for fixing a rail to a concrete sleeper, by means of a toad, known under the name of "Pandrol toad", forming a double spring loop, this element being constituted a part arranged in projection relative to the cross-member and intended to cooperate with the rail pad and the aforementioned toad and two anchoring lugs arranged on either side of the above-mentioned projecting part, substantially parallel to the rail, and intended to be embedded in the concrete of the crosspiece to immobilize the element with respect to the latter, the projecting part comprising a vertical face which is parallel to the rail and which forms a shoulder for one of the edges of the runner of the rail, a housing having a cylindrical portion whose axis extends parallel to the rail and in which is immobilized one of the ends of the toad, of substantially circular section, and a substantially horizontal support zone for the other end d u toad, the aforementioned housing being arranged between the vertical face and the aforementioned support zone,
  • cast iron elements Two types of elements of the above type are known for fastening rails to concrete sleepers; the cast iron elements and the steel elements produced in one piece by hot forming.
  • the cast iron elements have the disadvantage of being difficult to mass produce because they are practically impossible to precisely respect the required dimensions of the elements at the places where they cooperate with the rail, the toad and the cross-member.
  • these cast iron elements can be very fragile, given the significant differences which exist between the various masses of material constituting each of these elements.
  • the aforementioned steel elements obtained by hot forming a single part if they have a resistance greater than that of the cast iron elements, have the disadvantage of their method of manufacture, on the one hand, of being unable to be machined with all the required dimensional accuracy and, secondly, to require, for their realization, complex and very expensive equipment and a lot of energy to bring the part to the desired temperature for its shaping.
  • the object of the invention is to remedy these drawbacks and to provide a high-strength steel element which can be mass produced with great precision, using simple tools and with a reduced energy supply. .
  • said element is made of at least two pieces each formed from a metal dish, such as mild steel, a first piece profiled to present the vertical face intended to form the above-mentioned shoulder, the above-mentioned anchoring tab closest to the rail and situated in the extension of the vertical face, the cylin portion plate constituting the housing of one end of the toad and the substantially horizontal support zone of the other end of the latter, and a second profiled part comprising the anchoring lug of the element furthest from the rail, this second part being joined to the first, by welding, to the face thereof turned towards the cross member and along the free edge of the above-mentioned substantially horizontal support zone which is parallel to the rail.
  • a metal dish such as mild steel
  • the dimensions of the above two parts, taken parallel to the rail, are equal.
  • the dishes for the production of the aforementioned two pieces have their planar and parallel side faces in pairs, two adjoining side faces forming a right angle, at least the dish constituting the aforementioned first piece having , from its lateral face intended to constitute the end of the abovementioned anchoring lug, that is to say a cut, symmetrical with respect to the axis of the dish perpendicular to this lateral face, intended to create a central recess in the lug d anchoring of this first part to allow the passage of at least one connecting element of two masses of concrete constituting a cross, or two symmetrical cuts, relative to the above axis, intended to create on either side d '' a portion of the central anchoring leg of the recesses for the passage of the concrete irons of a monobloc cross member in prestressed concrete.
  • the two anchoring legs are of unequal lengths, the anchoring leg situated in the extension of the above-mentioned vertical face pre felt by the first part being longer than the anchor tab presented by the second part.
  • the element 1 is intended for fixing a rail 2, by means of a toad 3 forming a double spring loop (known as the "Pandrol toad"), to a concrete cross member 4.
  • This element 1 consists of a part 5, projecting from the cross member 4 and intended to cooperate with the shoe 6 of the rail and the toad 3, and two anchoring tabs 7 and 8 , substantially parallel to the rail and arranged on either side of the part 5, intended to be embedded in the concrete of the cross member 4 to immobilize the element 1 relative to the latter.
  • Part 5 comprises a vertical face 9 which is parallel to the rail 2 and which forms a shoulder for the edge 10 of the pad 6 of the rail, a thickness of elastic material 11 being interposed between this pad 6, the cross member 4 and the vertical face 9 of the element so that vibrations from the rail are not transmitted to the crossmember.
  • This part 5 also includes a housing 12, which has a cylindrical portion 13, with an axis parallel to the rail, in which the end 14 of the clip 3 is immobilized, the section of which is substantially circular, as well as a support zone 15, substantially horizontal, for the end 16 of the toad 3.
  • the housing 12 is arranged between the vertical face 9 above and the support zone 15, the end 14 of the toad bearing in the housing 12 on the face of the element facing the cross member 4, the toad bearing on the thickness of elastic material 11 folded over the face 17 of the pad of the rail opposite to the cross member, while the end 16 of the toad 3 bears, in the support zone 15, on the face of the element opposite to the cross member 4.
  • the element 1 consists of two parts 18 and 19 made for example of mild steel.
  • the part 18 is profiled to present the vertical face 9 constituting the shoulder for the shoe of the rail, the anchoring tab 7 located in the extension of the shoulder, the cylindrical portion 13 serving as housing at the end 14 of the toad 3 and finally the support zone 15 on which the end 16 of said toad rests.
  • the second part 19, which is profiled and which includes the anchoring lug 8 furthest from the rail, is assembled, by welding, to the face 20 of the part 18, along the free edge 21 of the support zone 15 , edge which is parallel to rail 2.
  • the dimensions of the parts 18 and 19 taken parallel to the rail are equal and, to facilitate the. cutting of the dishes constituting these parts and reducing as much as possible the material losses during this cutting, these parts 18 and 19 are, as shown in FIG. 3, in the form of rectangles, their lateral faces, obtained by simple sawing of the material, are plane and parallel two by two, two contiguous faces forming a right angle.
  • the dish from which the piece 18 is shaped has, in its zone intended to constitute the anchoring tab 7, that is a cutout 22 (FIG.
  • the anchoring lugs 7 and 8 are of unequal lengths, the lug 7 being longer than the lug 8, the base 26 of the latter being advantageously located at the same level that the upper part 27 of the recesses or cutouts 22 produced in the anchoring tab 7 of the part 18, the height of these cutouts being at most equal to 7/10 of the corresponding dimension d (FIG. 2) of the part of the part 18 intended to be embedded in the concrete of the crosspiece.
  • the elements 1 are fixed in the crosspieces 4 during the pouring of the concrete constituting the latter.
  • the elements 1 are arranged in the molds with anchoring lugs directed upwards and with their part 5 inserted into a corresponding opening provided at the bottom of said mold.
  • anchoring lugs directed upwards and with their part 5 inserted into a corresponding opening provided at the bottom of said mold.
  • the element 1 according to the invention comprises a metal plate rec tangular 28 automatically closing the opening of the mold when the element is placed therein, ensuring perfect centering of the element in the mold and preventing any introduction of the concrete into the housing 12 because, fixed to the element 1, it cannot be moved during vibration of the concrete.
  • This plate 28 which is planar, extends between the internal faces of the parts 18 and 19 substantially horizontally and is fixed to the latter by welding.
  • This plate 28 reinforces the resistance of the element 1 so that the latter, consisting of assembled parts, offers a resistance at least equal to that of an element produced in one piece, of section comparable to that of the parts 18 and 19 and obtained from the same metal.
  • the distance between the face 29 of the plate from the bottom 30 of the housing 12 is at least slightly greater than the diameter of the end 14 of the toad 3.
  • the dimension of the plate 28, taken parallel to the rail, is greater than the corresponding dimension parts 18 and 19 and it is fixed to the latter so that it overflows on either side of the element, the plate parts 31 projecting relative to the latter being substantially equal to ensure perfect centering of the element in the mold and properly seal the opening of said mold into which part 5 of the element is introduced.
  • the element 1 according to the invention in particular when used with a cross member comprising two masses of concrete, advantageously comprises, as shown in FIGS. 1 to 3, a rectangular flat plate 32 attached by welding and arranged, substantially vertically and parallel to the rail, in the area of the part 18 embedded in the concrete and between the face 9 constituting the shoulder of the rail pad and the cutout 22 made in the anchoring tab 7.
  • the dimension of this plate 32, taken parallel to the rail, is greater than the corresponding dimension of the part 18, the parts 33 of the plate , projecting from said part 18, being substantially equal and each having a semicircular recess 34 delivering passage to a concrete reinforcement 35 (FIG. 1), the concrete irons 35 cooperating with the plate 32 opposing when the element 1 is torn off and unsealed.
  • This plate 32 which is fixed, in the embodiment illustrated in FIGS. 1 to 3, on the face of the part 18 facing the rail could of course be fixed on the face of the part 18 opposite said rail.
  • the anchoring tab 7 extends vertically, in the extension of the shoulder of the rail pad formed by the vertical face 9 above, up to the level of the upper part 27 of the recess 22. It then has a first transverse deformation 36 orienting the tab 7 towards the rail so that it forms, as shown in FIG. 4, an angle of the order of 20 ° with the vertical, a second transverse deformation 37 orienting the tab 7 in the opposite direction along a angle of the order of 20 ° with the vertical and a third transverse deformation 38 reorienting the end of the anchoring lug 7 towards the rail, this forming an angle with the vertical of the order of 30 ".
  • the part 19 is welded to the part 18 so that the angle 39, formed by the face 20 of the part 18 and of the face 40 of the part 19 turned towards the rail, or of the order of 95 °, this part 19 having, below the level of attachment of the plate 28, a first transverse deformation 41 separating it from the part 18 at an angle with the vertical of the order of 20 °, a second deformation 42 in the opposite direction and of equivalent angle and finally a third deformation 43 to spread the end of the tab anchor 8 at an angle of about 30 ° with the vertical.
  • the gap existing between parts 18 and 19 is advantageously completely filled during the welding of said parts to each other, so as to avoid corrosion in this gap.
  • the deformations 36, 37 and 38 of the part 18 as well as the deformations 41, 42 and 43 of the part 19 can be carried out cold, so that only the zone of the part 18 intended to constitute the housing 12 must be heated to allow its deformation, hence the aforementioned energy saving.
  • the parts 18 and 19, the wafer 28 and the plate 32 are assembled using templates so that very high accuracy can be obtained in the dimensions of the element during manufacture in series.
  • a double element 44 allowing the fixing of the rail on either side of its shoe on the same crosspiece (see Figures 6 and 7).
  • This double element 44 consists of two identical elements 1, the parts 18 of which are turned towards one another so that their vertical faces 9 are parallel.
  • the distance which separates the parts 18 from the elements 1 corresponds to the transverse dimension of the shoe 6 of the rail, possibly increased by the thickness of an elastic element 11.
  • the aforementioned elements 1 are joined together by two angles 45 extending perpendicularly to the rail and intended to be embedded in the concrete, these being joined by welding to the anchoring lugs 7 and 8 of the items 1.
  • the plate 28 fixed to the internal faces of the parts 18 and 19 is advantageously, as shown in FIGS. 8 and 9, bent in its middle part to present, on the one hand, a central, flat and horizontal portion 44 between the parts 18 and 19 and the upper face 45 of which is situated substantially at the same level as that of the upper edge 46 of the edge 10 of the shoe 6 of the rail and , on the other hand, parts 31, located on either side of the central portion 44 and which project relative to the parts 18 and 19, the upper faces 47 of which are at the same level as that of the lower edge 48 of the edge 10 of the shoe 6.
  • the concrete which penetrates into the cavity formed between the parts 31 and the central portion 44 contributes to strengthening the anchoring of the element 1 in the cross-member.
  • the distance which separates the face 45 from the central portion 44 from the cylindrical portion 12 is at least slightly greater than the diameter of the end 14 of the clip 3 which is intended to be immobilized in this housing 12.
  • the plate 32 fixed on the face of the part 18 intended to be turned towards the rail, is advantageously profiled, as shown in FIG. 8, for having a wing 49 extending perpendicularly to the face 9 of the part 18 constituting the shoulder of the rail, the upper face 50 of this wing being situated at the same level as that of the faces 47 of the parts 31 of the plate 28.
  • anchoring lug 8 then having recesses similar to those of the lug 7 for the passage of the 'link element 24 above or concrete irons.
  • the housing 12 could be produced by cold forming by choosing a quality of steel, for this second part, which allows such forming.
  • the cutout 22 formed in this tab is advantageously made so that its edges are located, as shown in FIG. 10, in the immediate vicinity of the connecting element 24 , the distance between said edges and the element 24 being however sufficient so that the dielectric quality of the crosspiece is preserved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

1. A metal element (1) for securing a rail to a concrete sleeper (4) by means of a sleeper clip (3) having the shape of a spring double loop, this element comprising a portion (5) arranged in projection with respect to the slepper (4) and intended to cooperate with the base (6) of the rail and the sleeper clip (3), and two anchoring lugs (7 and 8) arranged on both sides of the projecting portion (5), these lugs being substantially parallel to the rail (2) and intended to be embedded in the sleeper concrete in order to secure the element (1) against motion with respect to said sleeper, the projecting portion (5) comprising a vertical surface (9) which is parallel to the rail (2) and forms a shoulder for one of the edges (10) of the rail base (6), a socket (12) having a cylindrical portion (13) the axis of which extends in a parallel direction to the rail and in which one of the ends of the sleeper clip (3), of a substantially circular cross-section, is set in position, and a substantially horizontal holding area (15) for the other end of the sleeper clip, the socket (12) being formed between the vertical surface (9) and the holding area (15), the end of the sleeper clip bearing in this socket (12) on the face of the latter which is turned towards the sleeper (4) while the other end of the sleeper clip (3) bears in the holding area (15) on the face of the element which is opposite to the sleeper, this element (1) being characterized in that it comprises, on the one hand, at least two pieces (18 and 19) each made from a metal flat, such as soft steel, a first piece (18) being shaped to comprise the vertical surface (9) intended to form the above-mentioned shoulder, the anchoring lug (7) which is the nearest to the rail (2) and is located in the extension of the vertical surface (9), the cylindrical portion (13) forming the socket of one of the ends of the sleeper clip (3) and the substantially horizontal holding area (15) for the other end of the sleeper clip, and a second piece (19) being shaped to comprise the anchoring lug (8) of the element which is the farthest off the rail, this second piece (19) being united to the first piece (18) by welding to the face (20) of the latter which is turned towards the sleeper and along the free edge (21) of the substantially horizontal holding area (15), which is parallel to the rail (2) and, on the other hand, means arranged to centre the element (1) into a casting mould for the sleeper and to prohibit concrete to be admitted into the socket (12) of the element (1) when concrete is cast, said means comprising a metal plate (28) extending in a horizontal direction between the internal faces of both pieces (18, 19) and being fixed by welding to the latter.

Description

L'invention est relative à un élément métallique pour la fixation d'un rail sur une traverse en béton, au moyen d'un crapaud, connu sous le nom de "crapaud Pandrol", formant une double boucle à ressort, cet élément étant constitué d'une partie disposée en saillie par rapport à la traverse et destinée à coopérer avec le patin du rail et le crapaud susdit et deux pattes d'ancrage disposées de part et d'autre de la partie en saillie précitée, sensiblement parallèlement au rail, et destinées à être noyées dans le béton de la traverse pour immobiliser l'élément par rapport à cette dernière, la partie disposée en saillie comprenant une face verticale qui est parallèle au rail et qui forme un épaulement pour un des bords du patin du rail, un logement présentant une portion cylindrique dont l'axe s'étend parallèlement au rail et dans lequel est immobilisée une des extrémités du crapaud, de section sensiblement circulaire, et une zone de support sensiblement horizontale pour l'autre extrémité du crapaud, le logement susdit étant agencé entre la face verticale et la zone de support précitées, l'extrémité susdite du crapaud prenant appui dans ledit logement sur la face de l'élément tournée vers la traverse tandis que l'autre extrémité du crapaud prend appui dans la zone de support précitée sur la face de l'élément opposée à la traverse.The invention relates to a metal element for fixing a rail to a concrete sleeper, by means of a toad, known under the name of "Pandrol toad", forming a double spring loop, this element being constituted a part arranged in projection relative to the cross-member and intended to cooperate with the rail pad and the aforementioned toad and two anchoring lugs arranged on either side of the above-mentioned projecting part, substantially parallel to the rail, and intended to be embedded in the concrete of the crosspiece to immobilize the element with respect to the latter, the projecting part comprising a vertical face which is parallel to the rail and which forms a shoulder for one of the edges of the runner of the rail, a housing having a cylindrical portion whose axis extends parallel to the rail and in which is immobilized one of the ends of the toad, of substantially circular section, and a substantially horizontal support zone for the other end d u toad, the aforementioned housing being arranged between the vertical face and the aforementioned support zone, the aforementioned end of the toad taking support in said housing on the face of the element facing the cross member while the other end of the toad takes support in the aforementioned support zone on the face of the element opposite the crosspiece.

On connait, pour la fixation de rails sur les traverses en béton, deux types d'éléments du genre susdit ; les éléments en fonte et les éléments en acier réalisés en une seule pièce par formage à chaud. Les éléments en fonte présentent l'inconvénient de pouvoir difficilement être fabriqués en série du fait qu'ils est pratiquement impossible de respecter avec précision les dimensions requises des éléments aux endroits où ils coopèrent avec le rail, le crapaud et la traverse. De plus, ces éléments en fonte peuvent présenter une grande fragilité étant donné les différences importantes qui existent entre les diverses masses de matière constituant chacun de ces éléments. Les éléments en acier susdits obtenus par formage à chaud d'une pièce unique, s'ils ont une résistance supérieure à celle des éléments en fonte, présentent toutefois l'inconvénient de par leur mode de fabrication, d'une part, de ne pouvoir être usinées avec toute la précision de dimensions requises et, d'autre part, de nécessiter, pour leur réalisation, un matériel complexe et très coûteux et beaucoup d'énergie pour amener la pièce à la température voulue pour son façonnage.Two types of elements of the above type are known for fastening rails to concrete sleepers; the cast iron elements and the steel elements produced in one piece by hot forming. The cast iron elements have the disadvantage of being difficult to mass produce because they are practically impossible to precisely respect the required dimensions of the elements at the places where they cooperate with the rail, the toad and the cross-member. In addition, these cast iron elements can be very fragile, given the significant differences which exist between the various masses of material constituting each of these elements. The aforementioned steel elements obtained by hot forming a single part, if they have a resistance greater than that of the cast iron elements, have the disadvantage of their method of manufacture, on the one hand, of being unable to be machined with all the required dimensional accuracy and, secondly, to require, for their realization, complex and very expensive equipment and a lot of energy to bring the part to the desired temperature for its shaping.

L'invention a pour but de remédier à ces inconvénients et de procurer un élément en acier, de haute résistance, pouvant être fabriqué en grande série avec une grande précision, à l'aide d'outils simples et avec un apport d'énergie réduit.The object of the invention is to remedy these drawbacks and to provide a high-strength steel element which can be mass produced with great precision, using simple tools and with a reduced energy supply. .

A cet effet, suivant l'invention, ledit élément est réalisé en au moins deux pièces formées chacune à partir d'un plat en métal, tel que de l'acier doux, une première pièce profilée pour présenter la face verticale destinée à former l'épaulement précité, la patte d'ancrage susdite la plus proche du rail et située dans le prolongement de la face verticale, la portion cylindrique constituant le logement d'une des extrémités du crapaud et la zone de support sensiblement horizontale de l'autre extrémité de ce dernier, et une seconde pièce profilée comprenant la patte d'ancrage de l'élément la plus éloignée du rail, cette seconde pièce étant réunie à la première, par soudure, à la face de celle-ci tournée vers la traverse et le long du bord libre de la zone de support sensiblement horizontale précitée qui est parallèle au rail.To this end, according to the invention, said element is made of at least two pieces each formed from a metal dish, such as mild steel, a first piece profiled to present the vertical face intended to form the above-mentioned shoulder, the above-mentioned anchoring tab closest to the rail and situated in the extension of the vertical face, the cylin portion plate constituting the housing of one end of the toad and the substantially horizontal support zone of the other end of the latter, and a second profiled part comprising the anchoring lug of the element furthest from the rail, this second part being joined to the first, by welding, to the face thereof turned towards the cross member and along the free edge of the above-mentioned substantially horizontal support zone which is parallel to the rail.

Suivant une forme de réalisation de l'invention, les dimensions des deux pièces susdites, prises parallèlement au rail, sont égales.According to one embodiment of the invention, the dimensions of the above two parts, taken parallel to the rail, are equal.

Suivant un mode de réalisation avantageux de l'invention, les plats pour la réalisation des deux pièces susdites ont leurs faces latérales planes et parallèles deux à deux, deux faces latérales contigues formant un angle droit, au moins le plat constituant la première pièce précitée présentant, à partir de sa face latérale destinée à constituer l'extrémité de la patte d'ancrage précitée, soit une découpe, symétrique par rapport à l'axe du plat perpendiculaire à cette face latérale, destinée à créer un évidement central dans la patte d'ancrage de cette première pièce pour permettre le passage d'au moins un élément de liaison de deux masses de béton constituant une traverse, soit deux découpes symétriques, par rapport à l'axe susdit, destinées à créer de part et d'autre d'une portion de patte d'ancrage centrale des évidements pour le passage des fers à béton d'une traverse monobloc en béton précontraint.According to an advantageous embodiment of the invention, the dishes for the production of the aforementioned two pieces have their planar and parallel side faces in pairs, two adjoining side faces forming a right angle, at least the dish constituting the aforementioned first piece having , from its lateral face intended to constitute the end of the abovementioned anchoring lug, that is to say a cut, symmetrical with respect to the axis of the dish perpendicular to this lateral face, intended to create a central recess in the lug d anchoring of this first part to allow the passage of at least one connecting element of two masses of concrete constituting a cross, or two symmetrical cuts, relative to the above axis, intended to create on either side d '' a portion of the central anchoring leg of the recesses for the passage of the concrete irons of a monobloc cross member in prestressed concrete.

Suivant une forme de réalisation particulièrement avantageuse de l'invention, les deux pattes d'ancrage sont de longueurs inégales, la patte d'ancrage située dans le prolongement de la face verticale susdite présentée par la première pièces étant plus longue que la patte d'ancrage présentée par la seconde pièce.According to a particularly advantageous embodiment of the invention, the two anchoring legs are of unequal lengths, the anchoring leg situated in the extension of the above-mentioned vertical face pre felt by the first part being longer than the anchor tab presented by the second part.

D'autre détails et particularités de l'invention ressortiront de la description des dessins annexés au présent mémoire et qui représentent, à titre d'exemples non limitatifs, différentes formes d'exécution de l'élément suivant l'invention.

  • La figure 1 est une vue en élévation, partiellement en coupe et avec brisures partielles, d'un élément associé à un rail, à une traverse constituée de deux masses en béton réunies par organe de liaison et à un crapaud à ressort du type Pandrol.
  • La figure 2 est une vue de profil, avec brisures partielles, de l'élément représenté à la figure 1.
  • La figure 3 illustre, à une échelle plus petite que celle des figures 1 et 2, le développement des deux pièces constituant l'élément représenté auxdites figures 1 et 2.
  • La figure 4 est une vue en élévation d'une variante de l'élément montré aux figures 1 à 3, cet élément étant destiné à la fixation d'un rail à une traverse monobloc en béton précontraint.
  • La figure 5 est une vue de profil correspondant à la figure 4.
  • La figure 6 est une vue en élévation d'un élément double destiné à coopérer avec chacun des bords du patin d'un rail, ce dernier étant schématisé en traits mixtes.
  • La figure 7 est une vue en coupe suivant la ligne VII-VII de la figure 6.
  • La figure 8 est une vue analogue à la figure 1 qui illustre une autre variante de l'élément montré aux figures 1 à 3.
  • La figure 9 est une vue en coupe suivant la ligne IX-IX de la figure 8.
  • La figure 10 est une vue analogue à la figure 2 qui représente une forme de réalisation particulière des pattes d'ancrage de l'élément suivant l'invention.
Other details and particularities of the invention will emerge from the description of the drawings appended to this specification and which represent, by way of nonlimiting examples, different embodiments of the element according to the invention.
  • Figure 1 is an elevational view, partially in section and with partial breaks, of an element associated with a rail, a cross member consisting of two concrete masses joined by connecting member and a spring clip of the Pandrol type.
  • Figure 2 is a side view, partially broken, of the element shown in Figure 1.
  • FIG. 3 illustrates, on a smaller scale than that of FIGS. 1 and 2, the development of the two parts constituting the element represented in said FIGS. 1 and 2.
  • Figure 4 is an elevational view of a variant of the element shown in Figures 1 to 3, this element being intended for the attachment of a rail to a monobloc cross member in prestressed concrete.
  • FIG. 5 is a side view corresponding to FIG. 4.
  • Figure 6 is an elevational view of a double element intended to cooperate with each of the edges of the pad of a rail, the latter being shown schematically in broken lines.
  • Figure 7 is a sectional view along line VII-VII of Figure 6.
  • FIG. 8 is a view similar to FIG. 1 which illustrates another variant of the element shown in FIGS. 1 to 3.
  • Figure 9 is a sectional view along the line IX-IX of figure 8.
  • Figure 10 is a view similar to Figure 2 which shows a particular embodiment of the anchoring lugs of the element according to the invention.

Dans les différentes figures, les mêmes notations de référence désignent des éléments identiques ou analogues.In the various figures, the same reference notations designate identical or analogous elements.

L'élément 1 suivant l'invention et représenté aux dessins est destiné à la fixation d'un rail 2, au moyen d'un crapaud 3 formant une double boucle à ressort (connu sous le nom de "crapaud Pandrol"), à une traverse en béton 4. Cet élément 1 est constitué d'une partie 5, disposée en saillie par rapport à la traverse 4 et destinée à coopérer avec le patin 6 du rail et le crapaud 3, et de deux pattes d'ancrage 7 et 8, sensiblement parallèles au rail et disposées de part et d'autre de la partie 5, destinées à être noyées dans le béton de la traverse 4 pour immobiliser l'élément 1 par rapport à celle-ci. La partie 5 comprend une face verticale 9 qui est parallèle au rail 2 et qui forme un épaulement pour le bord 10 du patin 6 du rail, une épaisseur de matière élastique 11 étant interposée entre ce patin 6, la traverse 4 et la face verticale 9 de l'élément pour que les vibrations du rail ne se transmettent pas à la traverse. Cette partie 5 comprend également un logement 12, qui présente une portion cylindrique 13, d'axe parallèle au rail, dans lequel est immobilisée l'extrémité 14 du crapaud 3 dont la section est sensiblement circulaire, ainsi qu'une zone de support 15, sensiblement horizontale, pour l'extrémité 16 du crapaud 3. Le logement 12 est agencé entre la face verticale 9 précitée et la zone de support 15, l'extrémité 14 du crapaud s'appuyant dans le logement 12 sur la face de l'élément tournée vers la traverse 4, le crapaud prenant appui sur l'épaisseur de matière élastique 11 repliée sur la face 17 du patin du rail opposée à la traverse, tandis que l'extrémité 16 du crapaud 3 prend appui, dans la zone de support 15, sur la face de l'élément opposée à la traverse 4. L'élément 1 est constitué de deux pièces 18 et 19 réalisées par exemple en acier doux. La pièce 18 est profilée pour présenter la face verticale 9 constituant l'épaulement pour le patin du rail, la patte d'ancrage 7 située dans le prolongement de l'épaulement, la portion cylindrique 13 servant de logement à l'extrémité 14 du crapaud 3 et enfin la zone de support 15 sur laquelle s'appuie l'extrémité 16 dudit crapaud. La seconde pièce 19, qui est profilée et qui comprend la patte d'ancrage 8 la plus éloignée du rail, est assemblée, par soudure, à la face 20 de la pièce 18, le long du bord libre 21 de la zone de support 15, bord qui est parallèle au rail 2.The element 1 according to the invention and shown in the drawings is intended for fixing a rail 2, by means of a toad 3 forming a double spring loop (known as the "Pandrol toad"), to a concrete cross member 4. This element 1 consists of a part 5, projecting from the cross member 4 and intended to cooperate with the shoe 6 of the rail and the toad 3, and two anchoring tabs 7 and 8 , substantially parallel to the rail and arranged on either side of the part 5, intended to be embedded in the concrete of the cross member 4 to immobilize the element 1 relative to the latter. Part 5 comprises a vertical face 9 which is parallel to the rail 2 and which forms a shoulder for the edge 10 of the pad 6 of the rail, a thickness of elastic material 11 being interposed between this pad 6, the cross member 4 and the vertical face 9 of the element so that vibrations from the rail are not transmitted to the crossmember. This part 5 also includes a housing 12, which has a cylindrical portion 13, with an axis parallel to the rail, in which the end 14 of the clip 3 is immobilized, the section of which is substantially circular, as well as a support zone 15, substantially horizontal, for the end 16 of the toad 3. The housing 12 is arranged between the vertical face 9 above and the support zone 15, the end 14 of the toad bearing in the housing 12 on the face of the element facing the cross member 4, the toad bearing on the thickness of elastic material 11 folded over the face 17 of the pad of the rail opposite to the cross member, while the end 16 of the toad 3 bears, in the support zone 15, on the face of the element opposite to the cross member 4. The element 1 consists of two parts 18 and 19 made for example of mild steel. The part 18 is profiled to present the vertical face 9 constituting the shoulder for the shoe of the rail, the anchoring tab 7 located in the extension of the shoulder, the cylindrical portion 13 serving as housing at the end 14 of the toad 3 and finally the support zone 15 on which the end 16 of said toad rests. The second part 19, which is profiled and which includes the anchoring lug 8 furthest from the rail, is assembled, by welding, to the face 20 of the part 18, along the free edge 21 of the support zone 15 , edge which is parallel to rail 2.

Les dimensions des pièces 18 et 19 prises parallèlement au rail sont égales et, pour faciliter la. découpe des plats constituant ces pièces et réduire au maximum les pertes de matière lors de cette découpe, ces pièces 18 et 19 sont, comme montré à la figure 3, en forme de rectangles, leurs faces latérales, obtenues par simple sciage de la matière, sont planes et parallèles deux à deux, deux faces contigues formant un angle droit. Dans les formes de réalisation illustrées aux dessins, le plat à partir duquel est façonnée la pièce 18 présente, dans sa zone destinée à constituer la patte d'ancrage 7, soit une découpe 22 (figure 2, symétrique par rapport à l'axe 23 de la pièce 18, destinée à créer un évidement central dans la patte d'ancrage 7 pour permettre le passage de l'élément de liaison 24, schématisé en traits interrompus à la figure 2, réunissant les deux masses de béton constituant la traverse 4, soit deux découpes 22 symétriques par rapport à l'axe 23 susdit (figure 5) destinées à créer de part et d'autre d'une portion centrale 25 de la patte d'ancrage 7 deux évidements qui permettent le passage des fers à béton d'une traverse monobloc 4 en béton précontraint.The dimensions of the parts 18 and 19 taken parallel to the rail are equal and, to facilitate the. cutting of the dishes constituting these parts and reducing as much as possible the material losses during this cutting, these parts 18 and 19 are, as shown in FIG. 3, in the form of rectangles, their lateral faces, obtained by simple sawing of the material, are plane and parallel two by two, two contiguous faces forming a right angle. In the embodiments illustrated in the drawings, the dish from which the piece 18 is shaped has, in its zone intended to constitute the anchoring tab 7, that is a cutout 22 (FIG. 2, symmetrical with respect to the axis 23 of the part 18, intended to create a central recess in the anchoring tab 7 to allow the passage of the connecting element 24, shown diagrammatically in broken lines at the Figure 2, bringing together the two masses of concrete constituting the cross 4, or two cutouts 22 symmetrical with respect to the axis 23 above (Figure 5) intended to create on either side of a central portion 25 of the leg d anchoring 7 two recesses which allow the passage of the concrete irons of a monobloc crosspiece 4 in prestressed concrete.

Dans les formes de réalisation de l'élément 1 illustrées aux dessins, les pattes d'ancrage 7 et 8 sont de longueurs inégales, la patte 7 étant plus longue que la patte 8, la base 26 de cette dernière étant avantageusement située au même niveau que la partie supérieure 27 des évidements ou découpes 22 réalisés dans la patte d'ancrage 7 de la pièce 18, la hauteur de ces découpes étant tout au plus égale aux 7/10 de la dimension correspondante d (figure 2) de la partie de la pièce 18 destinée à être noyée dans le béton de la traverse.In the embodiments of the element 1 illustrated in the drawings, the anchoring lugs 7 and 8 are of unequal lengths, the lug 7 being longer than the lug 8, the base 26 of the latter being advantageously located at the same level that the upper part 27 of the recesses or cutouts 22 produced in the anchoring tab 7 of the part 18, the height of these cutouts being at most equal to 7/10 of the corresponding dimension d (FIG. 2) of the part of the part 18 intended to be embedded in the concrete of the crosspiece.

Les éléments 1 sont fixés dans les traverses 4 lors de la coulée du béton constituant ces dernières.The elements 1 are fixed in the crosspieces 4 during the pouring of the concrete constituting the latter.

Pour ce faire, les éléments 1 sont disposés dans les moules pattes d'ancrage dirigées vers le haut et avec leur partie 5 introduite dans une ouverture correspondante prévue au fond dudit moule. Pour éviter que le béton s'introduise dans le logement 12 lors de la coulée, il est connu de disposer manuellement une pièce en matière plastique obturant l'ouverture du moule. Cette façon de faire présente l'inconvénient, outre celui de nécessiter le positionnement correct de ces pièces d'obturation à la main, de permettre, lors du vibrage du béton, des déplacements desdites pièces qui autorisent l'introduction du béton dans ces logements 12. Pour remédier à ces inconvénients, l'élément 1 suivant l'invention comprend une plaquette métallique rectangulaire 28 obturant automatiquement l'ouverture du moule lors de la pose de l'élément dans celle-ci, assurant un centrage parfait de l'élément dans le moule et interdisant toute introduction du béton dans le logement 12 car, fixée à l'élément 1, elle ne peut être déplacée lors du vibrage du béton.To do this, the elements 1 are arranged in the molds with anchoring lugs directed upwards and with their part 5 inserted into a corresponding opening provided at the bottom of said mold. To prevent concrete from entering the housing 12 during casting, it is known practice to manually place a plastic part closing the opening of the mold. This procedure has the disadvantage, in addition to requiring the correct positioning of these shutter parts by hand, to allow, during the vibration of the concrete, movements of said parts which allow the introduction of concrete into these housings 12 To remedy these drawbacks, the element 1 according to the invention comprises a metal plate rec tangular 28 automatically closing the opening of the mold when the element is placed therein, ensuring perfect centering of the element in the mold and preventing any introduction of the concrete into the housing 12 because, fixed to the element 1, it cannot be moved during vibration of the concrete.

Cette plaquette 28, qui est plane, s'étend entre les faces internes des pièces 18 et 19 sensiblement horizontalement et est fixée à ces dernières par soudure.This plate 28, which is planar, extends between the internal faces of the parts 18 and 19 substantially horizontally and is fixed to the latter by welding.

Cette plaquette 28 renforce la résistance de l'élément 1 de sorte que celui-ci, constitué de pièces assemblées, offre une résistance au moins égale à celle d'un élément réalisé en une seule pièce, de section comparable à celle des pièces 18 et 19 et obtenue à partir d'un même métal. La distance qui sépare la face 29 de la plaquette du fond 30 du logement 12 est au moins légèrement supérieure au diamètre de l'extrémité 14 du crapaud 3. La dimension de la plaquette 28, prise parallèlement au rail, est supérieure à la dimension correspondante des pièces 18 et 19 et elle est fixée à ces dernières pour qu'elle déborde de part et d'autre de l'élément, les parties de plaquette 31 en saillie par rapport à ce dernier étant sensiblement égales pour assurer un centrage parfait de l'élément dans le moule et obturer correctement l'ouverture dudit moule dans laquelle est introduite la partie 5 de l'élément.This plate 28 reinforces the resistance of the element 1 so that the latter, consisting of assembled parts, offers a resistance at least equal to that of an element produced in one piece, of section comparable to that of the parts 18 and 19 and obtained from the same metal. The distance between the face 29 of the plate from the bottom 30 of the housing 12 is at least slightly greater than the diameter of the end 14 of the toad 3. The dimension of the plate 28, taken parallel to the rail, is greater than the corresponding dimension parts 18 and 19 and it is fixed to the latter so that it overflows on either side of the element, the plate parts 31 projecting relative to the latter being substantially equal to ensure perfect centering of the element in the mold and properly seal the opening of said mold into which part 5 of the element is introduced.

L'élément 1 suivant l'invention, en particulier lorsqu'il est utilisé avec une traverse comprenant deux masses de béton, comprend avantageusement, comme montré aux figures 1 à 3, une plaque plane rectangulaire 32 rapportée par soudure et disposée, sensiblement verticalement et parallèlement au rail, dans la zone de la pièce 18 noyée dans le béton et comprise entre la face 9 constituant l'épaulement du patin du rail et la découpe 22 réalisée dans la patte d'ancrage 7. La dimension de cette plaque 32, prise parallèlement au rail, est supérieure à la dimension correspondante de la pièce 18, les parties 33 de plaque, en saillie par rapport à ladite pièce 18, étant sensiblement égales et présentant chacune, un évidement semi-circulaire 34 livrant passage à un fer à béton 35 (figure 1), les fers à béton 35 en coopérant avec la plaque 32 s'opposant à l'arrachement et au descellement de l'élément 1. Cette plaque 32 qui est fixée, dans la forme de réalisation illustrée aux figures 1 à 3, sur la face de la pièce 18 tournée vers le rail pourrait bien entendu être fixée sur la face de la pièce 18 opposée audit rail.The element 1 according to the invention, in particular when used with a cross member comprising two masses of concrete, advantageously comprises, as shown in FIGS. 1 to 3, a rectangular flat plate 32 attached by welding and arranged, substantially vertically and parallel to the rail, in the area of the part 18 embedded in the concrete and between the face 9 constituting the shoulder of the rail pad and the cutout 22 made in the anchoring tab 7. The dimension of this plate 32, taken parallel to the rail, is greater than the corresponding dimension of the part 18, the parts 33 of the plate , projecting from said part 18, being substantially equal and each having a semicircular recess 34 delivering passage to a concrete reinforcement 35 (FIG. 1), the concrete irons 35 cooperating with the plate 32 opposing when the element 1 is torn off and unsealed. This plate 32 which is fixed, in the embodiment illustrated in FIGS. 1 to 3, on the face of the part 18 facing the rail could of course be fixed on the face of the part 18 opposite said rail.

La patte d'ancrage 7 s'étend verticalement, dans le prolongement de l'épaulement du patin du rail constitué par la face verticale 9 susdite, jusqu'au niveau de la partie supérieure 27 de l'évidement 22. Elle présente alors une première déformation transversale 36 orientant la patte 7 vers le rail pour qu'elle forme, comme montré à la figure 4, un angle de l'ordre de 20° avec la verticale, une seconde déformation transversale 37 orientant la patte 7 en sens opposé suivant un angle de l'ordre de 20° avec la verticale et une troisième déformation transversale 38 réorientant l'extrémité de la patte d'ancrage 7 vers le rail et ce, en formant avec la verticale un angle de l'ordre de 30".The anchoring tab 7 extends vertically, in the extension of the shoulder of the rail pad formed by the vertical face 9 above, up to the level of the upper part 27 of the recess 22. It then has a first transverse deformation 36 orienting the tab 7 towards the rail so that it forms, as shown in FIG. 4, an angle of the order of 20 ° with the vertical, a second transverse deformation 37 orienting the tab 7 in the opposite direction along a angle of the order of 20 ° with the vertical and a third transverse deformation 38 reorienting the end of the anchoring lug 7 towards the rail, this forming an angle with the vertical of the order of 30 ".

Pour renforcer l'ancrage de l'élément 1 dans la traverse, la pièce 19 est soudée à la pièce 18 pour que l'angle 39, formé par la face 20 de la pièce 18 et de la face 40 de la pièce 19 tournée vers le rail, soit de l'ordre de 95°, cette pièce 19 présentant, en-dessous du niveau de fixation de la plaquette 28, une première déformation transversale 41 l'écartant de la pièce 18 suivant un angle avec la verticale de l'ordre de 20°, une seconde déformation 42 en sens contraire et d'angle équivalent et enfin une troisième déformation 43 pour écarter l'extrémité de la patte d'ancrage 8 suivant un angle de l'ordre de 30° avec la verticale. L'interstice existant entre les pièces 18 et 19 est avantageusement entièrement comblé lors de la soudure desdites pièces l'une à l'autre et ce, de manière à éviter la corrosion dans cet interstice.To strengthen the anchoring of the element 1 in the cross member, the part 19 is welded to the part 18 so that the angle 39, formed by the face 20 of the part 18 and of the face 40 of the part 19 turned towards the rail, or of the order of 95 °, this part 19 having, below the level of attachment of the plate 28, a first transverse deformation 41 separating it from the part 18 at an angle with the vertical of the order of 20 °, a second deformation 42 in the opposite direction and of equivalent angle and finally a third deformation 43 to spread the end of the tab anchor 8 at an angle of about 30 ° with the vertical. The gap existing between parts 18 and 19 is advantageously completely filled during the welding of said parts to each other, so as to avoid corrosion in this gap.

Les déformations 36, 37 et 38 de la pièce 18 ainsi que les déformations 41, 42 et 43 de la pièce 19 peuvent être réalisées à froid, de sorte que seule la zone de la pièce 18 destinée à constituer le logement 12 doit être chauffée pour permettre sa déformation, d'où l'économie d'énergie précitée. L'assemblage des pièces 18 et 19, de la plaquette 28 et de la plaque 32 s'effectue à l'aide de gabarits de sorte qu'une très grande précision peut être obtenue dans les dimensions de l'élément lors de la fabrication en série.The deformations 36, 37 and 38 of the part 18 as well as the deformations 41, 42 and 43 of the part 19 can be carried out cold, so that only the zone of the part 18 intended to constitute the housing 12 must be heated to allow its deformation, hence the aforementioned energy saving. The parts 18 and 19, the wafer 28 and the plate 32 are assembled using templates so that very high accuracy can be obtained in the dimensions of the element during manufacture in series.

On peut prévoir, suivant l'invention, un élément double 44 permettant la fixation du rail de part et d'autre de son patin sur une même traverse (voir figures 6 et 7). Cet élément double 44 est constitué de deux éléments 1 identiques et dont les pièces 18 sont tournées l'une vers l'autre pour que leurs faces verticales 9 soient parallèles. La distance qui sépare les pièces 18 des éléments 1 correspond à la dimension transversale du patin 6 du rail, augmentée éventuellement de l'épaisseur d'un élément élastique 11. Les éléments 1 susdits sont réunis entre eux par deux cornières 45 s'étendant perpendiculairement au rail et destinées à être noyées dans le béton, celles-ci étant réunies par soudures aux pattes d'ancrage 7 et 8 des éléments 1.One can provide, according to the invention, a double element 44 allowing the fixing of the rail on either side of its shoe on the same crosspiece (see Figures 6 and 7). This double element 44 consists of two identical elements 1, the parts 18 of which are turned towards one another so that their vertical faces 9 are parallel. The distance which separates the parts 18 from the elements 1 corresponds to the transverse dimension of the shoe 6 of the rail, possibly increased by the thickness of an elastic element 11. The aforementioned elements 1 are joined together by two angles 45 extending perpendicularly to the rail and intended to be embedded in the concrete, these being joined by welding to the anchoring lugs 7 and 8 of the items 1.

Dans le but d'assurer une rigidité accrue et une meilleure résistance de l'élément aux chocs latéraux, la plaquette 28 fixée aux faces internes des pièces 18 et 19 est avantageusement, comme montré aux figures 8 et 9, cintrée en sa partie médiane pour présenter, d'une part, une portion centrale 44 plane et horizontale comprise entre les pièces 18 et 19 et dont la face supérieure 45 est située sensiblement au même niveau que celui de l'arête supérieure 46 du bord 10 du patin 6 du rail et, d'autre part, des parties 31, situées de part et d'autre de la portion centrale 44 et qui font saillie par rapport aux pièces 18 et 19, dont les faces supérieures 47 sont au même niveau que celui de l'arête inférieure 48 du bord 10 du patin 6. Le béton qui pénètre dans la cavité formée entre les parties 31 et la portion centrale 44 contribue à renforcer l'ancrage de l'élément 1 dans la traverse. La distance qui sépare la face 45 de la portion centrale 44 de la portion cylindrique 12 est au moins légèrement supérieure au diamètre de l'extrémité 14 du crapaud 3 qui est destinée à être immobilisée dans ce logement 12.In order to ensure increased rigidity and better resistance of the element to lateral impacts, the plate 28 fixed to the internal faces of the parts 18 and 19 is advantageously, as shown in FIGS. 8 and 9, bent in its middle part to present, on the one hand, a central, flat and horizontal portion 44 between the parts 18 and 19 and the upper face 45 of which is situated substantially at the same level as that of the upper edge 46 of the edge 10 of the shoe 6 of the rail and , on the other hand, parts 31, located on either side of the central portion 44 and which project relative to the parts 18 and 19, the upper faces 47 of which are at the same level as that of the lower edge 48 of the edge 10 of the shoe 6. The concrete which penetrates into the cavity formed between the parts 31 and the central portion 44 contributes to strengthening the anchoring of the element 1 in the cross-member. The distance which separates the face 45 from the central portion 44 from the cylindrical portion 12 is at least slightly greater than the diameter of the end 14 of the clip 3 which is intended to be immobilized in this housing 12.

Pour parfaire l'étanchéité dudit logement 12 lors de la coulée du béton de la traverse, la plaque 32, fixée sur la face de la pièce 18 destinée à être tournée vers le rail, est avantageusement profilée, comme montré à la figure 8, pour présenter une aile 49 s'étendant perpendiculairement à la face 9 de la pièce 18 constituant l'épaulement du rail, la face supérieure 50 de cette aile étant située au même niveau que celui des faces 47 des parties 31 de la plaquette 28.To perfect the tightness of said housing 12 during the pouring of the concrete of the sleeper, the plate 32, fixed on the face of the part 18 intended to be turned towards the rail, is advantageously profiled, as shown in FIG. 8, for having a wing 49 extending perpendicularly to the face 9 of the part 18 constituting the shoulder of the rail, the upper face 50 of this wing being situated at the same level as that of the faces 47 of the parts 31 of the plate 28.

Il doit être entendu que l'invention n'est nullement limitée aux formes de réalisation décrites et que bien des modifications peuvent être apportées à ces dernières sans sortir du cadre du présent brevet.It should be understood that the invention is in no way limited to the embodiments described and that many modifications can be made to these without going beyond the scope of this patent.

C'est ainsi que l'on pourrait notamment prévoir un élément 1 dont les pattes d'ancrage 7 et 8 sont de longueurs égales, la patte d'ancrage 8 présentant alors des évidements analogues à ceux de la patte 7 pour le passage de l'élément de liaison 24 susdit ou des fers à béton.Thus one could in particular provide an element 1 whose anchoring lugs 7 and 8 are of equal length, the anchoring lug 8 then having recesses similar to those of the lug 7 for the passage of the 'link element 24 above or concrete irons.

On pourrait encore prévoir une pièce 18 réalisée en deux parties réunies par soudure, une première partie comprenant la face 9 susdite et la patte d'ancrage 7, tandis que la deuxième partie comprendrait le logement 12 et la zone de support 15.One could also provide a part 18 made in two parts joined by welding, a first part comprising the above-mentioned face 9 and the anchoring tab 7, while the second part would comprise the housing 12 and the support zone 15.

Pour réduire encore le coût de l'élément, dans cette alternative, on pourrait réaliser le logement 12 par formage à froid en choisissant une qualité d'acier, pour cette deuxième partie, qui autorise un tel formage.To further reduce the cost of the element, in this alternative, the housing 12 could be produced by cold forming by choosing a quality of steel, for this second part, which allows such forming.

Pour renforcer la résistance de la patte d'ancrage 7 à l'arrachement, la découpe 22 pratiquée dans cette patte est avantageusement réalisée pour que ses bords soient situés, comme montré à la figure 10, à proximité immédiate de l'élément de liaison 24, la distance entre lesdits bords et l'élément 24 étant toutefois suffisante pour que la qualité diélectrique de la traverse soit préservée.To strengthen the resistance of the anchoring tab 7 to tearing, the cutout 22 formed in this tab is advantageously made so that its edges are located, as shown in FIG. 10, in the immediate vicinity of the connecting element 24 , the distance between said edges and the element 24 being however sufficient so that the dielectric quality of the crosspiece is preserved.

Claims (15)

1) Elément métallique (1) pour la fixation d'un rail (2) sur une traverse en béton (4), au moyen d'un crapaud (3), connu sous le nom de "crapaud Pandrol", formant une double boucle à ressort, cet élément étant constitué d'une partie (5) disposée en saillie par rapport à la traverse (4) et destinée à coopérer avec le patin (6) du rail et le crapaud (3) et de deux pattes d'ancrage (7 et 8) disposées de part et d'autre de la partie en saillie (5), sensiblement parallèmement au rail (2), et destinées à être noyées dans le béton de la traverse pour immobiliser l'élément (1) par rapport à cette dernière, la partie (5) disposée en saillie comprenant une face verticale (9) qui est parallèle au rail (2) et qui forme un épaulement pour un des bords (10) du patin (6) du rail, un logement (12) présentant une portion cylindrique (13) dont l'axe s'étend parallèlement au rail et dans lequel est immobilisée une des extrémités du crapaux (3), de section sensiblement circulaire, et une zone de support (15) sensiblement horizontale pour l'autre extrémité du crapaud, le logement (12) étant agencé entre la face verticale (9) et la zone de support (15), l'extrémité du crapaud prenant appui dans ledit logement (12) sur la face de l'élément tournée vers la traverse (4) tandis que l'autre extrémité du crapaud (3) prend appui dans la zone de support (15) sur la face de l'élément opposée à la traverse, cet élément (1) étant caractérisé en ce qu'il est constitué d'au moins deux pièces (18 et 19) formées chacune à partir d'un plat en métal, tel que de l'acier doux, une première pièce (18) profilée pour présenter la face verticale (9) destinée à former l'épaulement précité, la patte d'ancrage (7) la plus proche du rail (2) et située dans le prolongement de la face verticale (9), la portion cylindrique (13) constituant le logement d'une des extrémités du crapaud (3) et la zone de support (15) sensiblement horizontale de l'autre extrémité du crapaud, et une seconde pièce (19) profilée comprenant la patte d'ancrage (8) de l'élément la plus éloignée du rail, cette seconde pièce (19) étant réunie à la première pièce (18), par soudure, à la face (20) de celle-ci tournée vers la traverse et le long du bord libre (21) de la zone de support (15) sensiblement horizontale précitée qui est parallèle au rail (2).1) Metallic element (1) for fixing a rail (2) on a concrete sleeper (4), by means of a toad (3), known under the name of "Pandrol toad", forming a double loop spring-loaded, this element consisting of a part (5) projecting from the cross-member (4) and intended to cooperate with the shoe (6) of the rail and the toad (3) and two anchoring lugs (7 and 8) arranged on either side of the projecting part (5), substantially parallel to the rail (2), and intended to be embedded in the concrete of the crosspiece to immobilize the element (1) relative to the latter, the projecting part (5) comprising a vertical face (9) which is parallel to the rail (2) and which forms a shoulder for one of the edges (10) of the shoe (6) of the rail, a housing ( 12) having a cylindrical portion (13) whose axis extends parallel to the rail and in which is immobilized one of the ends of the flaps (3), of substantially circular section, and a support zone ( 15) substantially horizontal for the other end of the toad, the housing (12) being arranged between the vertical face (9) and the support zone (15), the end of the toad bearing in said housing (12) on the face of the element facing towards the crosspiece (4) while the other end of the toad (3) is supported in the support zone (15) on the face of the element opposite to the crosspiece, this element (1) being characterized in that it consists of at least two pieces (18 and 19) each formed from a metal dish, such as mild steel, a first piece (18) profiled to present the face vertical (9) intended to form the abovementioned shoulder, the anchoring tab (7) closest to the rail (2) and situated in the extension of the vertical face (9), the cylindrical portion (13) constituting the housing of one of the ends of the toad (3) and the substantially horizontal support zone (15) of the other end of the toad, and a second profiled part (19) comprising the tab anchoring (8) of the element furthest from the rail, this second part (19) being joined to the first part (18), by welding, to the face (20) thereof turned towards the cross member and along from the free edge (21) of the above-mentioned substantially horizontal support zone (15) which is parallel to the rail (2). 2) Elément suivant la revendication 1, caractérisé en ce que les dimensions des deux pièces (18 et 19), prises parallèlement au rail (2), sont égales.2) Element according to claim 1, characterized in that the dimensions of the two parts (18 and 19), taken parallel to the rail (2), are equal. 3) Elément suivant l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les plats pour la réalisation des deux pièces (18 et 19) ont leurs faces latérales planes et parallèles deux à deux, deux faces latérales contiguës formant un angle droit, au moins le plat constituant la première pièce (18) présentant, à partir de sa face latérale destinée à constituer l'extrémité de la patte d'ancrage (7), soit une découpe (22), symétrique par rapport à l'axe du plat perpendiculaire à cette face latérale, destinée à créer un évidement central dans la patte d'ancrage (7) de cette pièce (18) pour permettre le passage d'au moins un élément de liaison (24) de deux masses de béton constituant une traverse (4), soit deux découpes (22) symétriques, par rapport à l'axe susdit, destinées à créer, de part et d'autre d'une portion de patte d'ancrage centrale (25), des évidements pour le passage des fers à béton d'une traverse monobloc (4) en béton précontraint.3) Element according to either of Claims 1 and 2, characterized in that the flats for the production of the two parts (18 and 19) have their flat and parallel lateral faces in pairs, two contiguous lateral faces forming a right angle, at least the flat constituting the first part (18) having, from its lateral face intended to constitute the end of the anchoring tab (7), ie a cutout (22), symmetrical with respect to the axis of the plate perpendicular to this lateral face, intended to create a central recess in the anchoring lug (7) of this part (18) to allow the passage of at least one connecting element (24) of two masses of concrete constituting a cross-member (4), that is to say two cutouts (22) symmetrical with respect to the above-mentioned axis, intended to create, on either side of a portion of central anchoring tab (25), recesses for the passage of concrete irons of a monobloc crosspiece (4) in prestressed concrete. 4) Elément suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que les deux pattes d'ancrage (7 et 8) sont de longueurs inégales, la patte d'ancrage (7) située dans le prolongement de la face verticale (9) présentée par la première pièce (18) étant plus longue que la patte d'ancrage (8) présentée par la seconde pièce (19).4) Element according to any one of claims 1 to 3, characterized in that the two legs anchor (7 and 8) are of unequal lengths, the anchor tab (7) located in the extension of the vertical face (9) presented by the first part (18) being longer than the anchor tab ( 8) presented by the second part (19). 5) Elément suivant la revendication 4, caractérisé en ce que la base (26) de la patte d'ancrage (8) présentée par la seconde pièce (19) est située sensiblement au même niveau que la partie supérieure (27) du ou des évidements (22) réalisés dans la patte d'ancrage (7) présentée par la première pièce (18).5) Element according to claim 4, characterized in that the base (26) of the anchoring tab (8) presented by the second part (19) is located substantially at the same level as the upper part (27) of the recesses (22) made in the anchoring tab (7) presented by the first part (18). 6) Elément suivant la revendication 5, caractérisé en ce que la hauteur du ou des évidements (22) est tout au plus égale aux 7/10 de la dimension correspondante de la partie de la première pièce (18) destinée à être noyée dans le béton de la traverse (4).6) Element according to claim 5, characterized in that the height of the recess (s) (22) is at most equal to 7/10 of the corresponding dimension of the part of the first part (18) intended to be embedded in the concrete of the crosspiece (4). 7) Elément suivant l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comprend une plaquette métallique (28) rectangulaire et plane s'étendant entre les faces internes des deux pièces (18 et 19), cette plaquette, fixée auxdites pièces par soudure, étant horizontale, la distance qui la sépare de la génératrice la plus éloignée de la portion cylindrique (13) du logement (12) présenté par la première pièce (18) étant au moins légèrement supérieure au diamètre de l'extrémité (14) du crapaud (3) destiné à être immobilisée dans ledit logement, la dimension de la plaquette (28) prise parallèlement au rail étant supérieure à la dimension correspondante des deux pièces (18 et 19) constituant l'élément (1), ladite plaquette étant fixée à ces dernières de manière à ce qu'elle déborde de part et d'autre de l'élément, les parties (31) de plaquette en saillie par rapport à ce dernier étant sensiblement égales.7) Element according to any one of claims 1 to 6, characterized in that it comprises a metal plate (28) rectangular and flat extending between the internal faces of the two parts (18 and 19), this plate, fixed to said parts by welding, being horizontal, the distance which separates it from the generator furthest from the cylindrical portion (13) of the housing (12) presented by the first part (18) being at least slightly greater than the diameter of the end (14) of the toad (3) intended to be immobilized in said housing, the dimension of the plate (28) taken parallel to the rail being greater than the corresponding dimension of the two parts (18 and 19) constituting the element (1), said plate being fixed to the latter so that it overflows on either side of the element, the parts (31) of plate projecting relative to the latter being substantially equal. 8) Elément suivant l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comprend une plaquette métallique (28) d'allure rectangulaire s'étendant entre les faces internes des pièces (18 et 19) de manière à déborder de part et d'autre de ces dernières suivant une direction parallèle au rail, cette plaquette (28), qui est fixée aux pièces par soudure, étant cintrée en sa partie médiane pour présenter, d'une part, une portion centmrale (44) plane et horizontale comprise entre les pièces (18 et 19) et dont la face (45) tournée vers le logement (12) est située sensiblement au même niveau que celui de l'arête supérieure (46) du bord (10) du patin (6) du rail (2) et, d'autre part, des parties (31), situées de part et d'autre de la portion centrale (44) et en saillie par rapport aux pièces (18 et 19), dont les faces (47), tournées vers le logement (12), sont au même niveau que celui de l'arête inférieure (48) du bord (10) du patin (6) du rail, la distance séparant la portion centrale (44) de la portion cylindrique (13) du logement (12) présenté par la pièce (18) étant au moins légèrement supérieure au diamètre de l'extrémité (14) du crapaud (3) destinée à être immobilisée dans ledit logement.8) Element according to any one of claims 1 to 6, characterized in that it comprises a metal plate (28) of rectangular shape extending between the internal faces of the parts (18 and 19) so as to overflow on either side of the latter in a direction parallel to the rail, this plate (28), which is fixed to the parts by welding, being curved in its middle part to present, on the one hand, a central portion (44) planar and horizontal between the parts (18 and 19) and whose face (45) facing the housing (12) is located substantially at the same level as that of the upper edge (46) of the edge (10) of the shoe (6 ) of the rail (2) and, on the other hand, of the parts (31), located on either side of the central portion (44) and projecting with respect to the parts (18 and 19), the faces of which ( 47), facing the housing (12), are at the same level as that of the lower edge (48) of the edge (10) of the shoe (6) of the rail, the distance separating the central portion ale (44) of the cylindrical portion (13) of the housing (12) presented by the part (18) being at least slightly greater than the diameter of the end (14) of the clip (3) intended to be immobilized in said housing. 9) Elément suivant l'une quelconque des revendications 3 à 8, caractérisé en ce que sa première pièce (18) présente, en particulier lorsque ledit élément est destiné à être associé à une traverse constituée de deux masses de béton réunies entre elles par un élément de liaison (24), une plaque plane rectangulaire (32) rapportée par soudure et disposée sensiblement verticalement dans la zone de la pièce (18) noyée dans le béton, entre la face (9) de la pièce constituant l'épaulement susdit et la découpe (22) pratiquée dans la pièce, la dimension de cette plaque (32) prise parallèlement au rail étant supérieure à la dimension correspondante de la pièce, les parties de plaque en saillie par rapport à cette dernière étant sensiblement égales et présentant chacune, à partir des faces verticales perpendiculaires au rail, un évidement semi-circulaire (34) destiné au passage d'un fer à béton (35).9) Element according to any one of claims 3 to 8, characterized in that its first part (18) has, in particular when said element is intended to be associated with a cross member consisting of two masses of concrete joined together by a connecting element (24), a rectangular flat plate (32) attached by welding and disposed substantially vertically in the area of the part (18) embedded in the concrete, between the face (9) of the part constituting the abovementioned shoulder and the cutout (22) made in the part, the dimension of this plate (32) taken parallel to the rail being greater than the corresponding dimension of the part, the plate parts projecting with respect to the latter being substantially equal and each having, from the vertical faces perpendicular to the rail, a semi-circular recess (34) intended for the passage of a concrete reinforcing iron (35). 10) Elément suivant la revendication 9, caractérisé en ce que la plaque (32) est fixée sur la face de la pièce (18) destinée à être tournée vers le rail.10) Element according to claim 9, characterized in that the plate (32) is fixed on the face of the part (18) intended to be turned towards the rail. 11) Elément suivant la revendication 10, caractérisé en ce que la plaque (32) est profilée pour présenter une aile (49) s'étendant perpendiculairement à la face (9) de la pièce (18) qui constitue l'épaulement du rail, la face (50) de cette aile, qui est tournée vers le logement (12), étant située au même niveau que celui des faces (47) précitées des parties (31) de la plaquette (28).11) Element according to claim 10, characterized in that the plate (32) is profiled to present a wing (49) extending perpendicularly to the face (9) of the part (18) which constitutes the shoulder of the rail, the face (50) of this wing, which faces the housing (12), being located at the same level as that of the aforementioned faces (47) of the parts (31) of the plate (28). 12) Elément suivant l'une quelconque des revendications 3 à 11, caractérisé en ce que la patte d'ancrage (7) présentée par la première pièce (18) s'étend verticalement dans le prolongement de la zone constituant l'épaulement susdit, cette patte présentant, en dessous du niveau de la partie supérieure (27) du ou des évidements (22), une première déformation transversale (36) orientant la patte (7) vers le rail pour qu'elle forme un angle de l'ordre de 20° avec la verticale, une deuxième déformation (37) pour orienter la patte (7) dans l'autre sens suivant un angle de l'ordre de 20° et une troisième déformation (38) pour que l'extrémité de la patte d'ancrage soit dirigée vers le rail en formant avec la verticale un angle de l'ordre de 30".12) Element according to any one of claims 3 to 11, characterized in that the anchoring lug (7) presented by the first part (18) extends vertically in the extension of the zone constituting the abovementioned shoulder, this tab having, below the level of the upper part (27) of the recess (s) (22), a first transverse deformation (36) orienting the tab (7) towards the rail so that it forms an angle of the order 20 ° with the vertical, a second deformation (37) to orient the tab (7) in the other direction at an angle of about 20 ° and a third deformation (38) so that the end of the tab is directed towards the rail, forming an angle of about 30 "with the vertical. 13) Elément suivant l'une quelconque des revendications 1 à 12, caractérisé en ce que la seconde pièce (19) est réunie à la première pièce (18) pour que l'angle (39) formé par la face (20) de la zone horizontale de la première pièce (18) tournée vers la traverse et la face (40) de la seconde pièce (19) tournée vers le rail soit de l'ordre de 95°.13) Element according to any one of claims 1 to 12, characterized in that the second part (19) is joined to the first part (18) so that the angle (39) formed by the face (20) of the horizontal zone of the first part (18) facing the crosspiece and the face (40) of the second part (19) facing the rail is of the order of 95 °. 14) Elément suivant la revendication 13, caractérisé en ce que la seconde pièce (19) présente, en dessous du niveau de fixation de la plaquette (28), une première déformation transversale (41) l'écartant de la première pièce (18) suivant un angle de l'ordre de 20°, une seconde déformation (42) dirigée dans l'autre sens, suivant un angle de l'ordre de 20°, pour la rapprocher de la première pièce (18) et une troisième déformation (43) pour que l'extrémité libre de cette seconde pièce (19) s'écarte de la première pièce (18) suivant un angle de l'ordre de 30°.14) Element according to claim 13, characterized in that the second part (19) has, below the level of attachment of the plate (28), a first transverse deformation (41) separating it from the first part (18) at an angle of around 20 °, a second deformation (42) directed in the other direction, at an angle of around 20 °, to bring it closer to the first part (18) and a third deformation ( 43) so that the free end of this second part (19) moves away from the first part (18) at an angle of the order of 30 °. 15) Elément suivant l'une quelconque des revendications 1 à 14, caractérisé en ce qu'il est constitué de deux éléments (1), qui sont identiques et dont les premières pièces (18) sont tournées l'une vers l'autre et parallèles, la distance séparant ces premières pièces (18) correspondant à la dimension transversale du patin (6) du rail, des moyens (45), destinés à être noyés dans le béton, étant prévus pour réunir entre elles au moins une patte d'ancrage (7,8) de chacun des éléments (1).15) Element according to any one of claims 1 to 14, characterized in that it consists of two elements (1), which are identical and whose first parts (18) are turned towards each other and parallel, the distance separating these first parts (18) corresponding to the transverse dimension of the shoe (6) of the rail, means (45), intended to be embedded in the concrete, being provided to join together at least one leg of anchoring (7,8) of each of the elements (1).
EP83870094A 1983-05-31 1983-09-21 Element for fastening a rail to a concrete railway sleeper Expired EP0126835B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83870094T ATE38865T1 (en) 1983-05-31 1983-09-21 ELEMENT FOR FIXING A RAIL ON A CONCRETE SLEEPER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE0/210881A BE896890A (en) 1983-05-31 1983-05-31 Fixing for securing railway line to sleepers - comprises metallic strip parts with toothed anchor and vertical rail flange abutment
BE210881 1983-05-31

Publications (2)

Publication Number Publication Date
EP0126835A1 true EP0126835A1 (en) 1984-12-05
EP0126835B1 EP0126835B1 (en) 1988-11-23

Family

ID=3843642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83870094A Expired EP0126835B1 (en) 1983-05-31 1983-09-21 Element for fastening a rail to a concrete railway sleeper

Country Status (3)

Country Link
EP (1) EP0126835B1 (en)
AT (1) ATE38865T1 (en)
DE (1) DE3378540D1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1059190A (en) * 1965-11-04 1967-02-15 Lockspike Ltd Concrete railway sleepers and rail-fastening arrangements employing them
DE1938281B1 (en) * 1969-01-08 1970-07-30 Hollitzer Baustoffwerke Spring fastening to reinforced concrete sleepers for loop-shaped steel springs holding down the rail foot of a running rail
GB1278388A (en) * 1970-12-02 1972-06-21 Pandrol Ltd A retaining member suitable for incorporation in a concrete railway sleeper, a concrete railway sleeper with four such members in it and a rail-and-fastening assembly including the sleeper
GB1596002A (en) * 1978-05-31 1981-08-19 Pandrol Ltd Fastening railwy rails to concrete railway sleepers
FR2505379A1 (en) * 1981-05-11 1982-11-12 Sonneville Roger Reinforcement strap for concrete sleeper - has winced rectangular channel-shaped bar embedded under and parallel to rail sole

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1059190A (en) * 1965-11-04 1967-02-15 Lockspike Ltd Concrete railway sleepers and rail-fastening arrangements employing them
DE1938281B1 (en) * 1969-01-08 1970-07-30 Hollitzer Baustoffwerke Spring fastening to reinforced concrete sleepers for loop-shaped steel springs holding down the rail foot of a running rail
GB1278388A (en) * 1970-12-02 1972-06-21 Pandrol Ltd A retaining member suitable for incorporation in a concrete railway sleeper, a concrete railway sleeper with four such members in it and a rail-and-fastening assembly including the sleeper
GB1596002A (en) * 1978-05-31 1981-08-19 Pandrol Ltd Fastening railwy rails to concrete railway sleepers
FR2505379A1 (en) * 1981-05-11 1982-11-12 Sonneville Roger Reinforcement strap for concrete sleeper - has winced rectangular channel-shaped bar embedded under and parallel to rail sole

Also Published As

Publication number Publication date
EP0126835B1 (en) 1988-11-23
ATE38865T1 (en) 1988-12-15
DE3378540D1 (en) 1988-12-29

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