WO1979000727A1 - Spring attaching device for a rail - Google Patents

Spring attaching device for a rail Download PDF

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Publication number
WO1979000727A1
WO1979000727A1 PCT/FR1979/000021 FR7900021W WO7900727A1 WO 1979000727 A1 WO1979000727 A1 WO 1979000727A1 FR 7900021 W FR7900021 W FR 7900021W WO 7900727 A1 WO7900727 A1 WO 7900727A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
toad
rail
clamping means
spring
Prior art date
Application number
PCT/FR1979/000021
Other languages
French (fr)
Inventor
M Kessler
Original Assignee
Renault
M Kessler
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault, M Kessler filed Critical Renault
Publication of WO1979000727A1 publication Critical patent/WO1979000727A1/en
Priority to DK505779A priority Critical patent/DK505779A/en
Priority to MW3679A priority patent/MW3679A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
    • E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
    • E01B9/306—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips the clip being a shaped plate

Definitions

  • the present invention relates to an elastic fixing device for rail tracks, in particular of the bolt fixing type tightening a metal elastic plate forming a spring against an intermediate piece, called a toad, bearing, on the one hand, on the track support, generally a cross member and, on the other hand, on the shoe or sole of the rail, ensuring its fixing by clamping against the track support.
  • the toad also generally ensures the wedging and lateral positioning of the tail by interposing between the edge of its pad and a corresponding rim of the support.
  • the object of the present invention is an improvement of the aforementioned solution which, for an equivalent attachment cost price, allows a much greater clamping effect remaining uniformly distributed over an increased surface of the pad.
  • this solution comprises an elastic plate forming a spring and tightened by bolt against a toad made of generally synthetic plastic material which it covers and plates, on the one hand, bearing against the rail support and, on the other hand, against the rail pad surface; at the end of tightening, the deformation of the spring plate presses it over the entire surface of the toad which transmits this pressure uniformly to its lower bearing surfaces, in particular to the surface of the rail pad.
  • the spring plate will have a general triangular or trapezoidal shape, known per se, the large base of which bears on the rail pad, the toad made of synthetic material has a corresponding bearing surface, covered by the spring plate , this face having a concave shape according to the desired deformation of the plate centered on the axis of the tightening bolt and preferably substantially spherical.
  • the tightening bolt passes through the plate and toad substantially at the geometric center of their surface.
  • the contact pressures would remain concentrated in the bolt tightening area.
  • the spring plate only resting on its angle zones at the start of the tightening, flexes circularly until it goes to settle down in the corresponding concave surface of the toad. This results, on the entire surface of the plate, a greenhouse effect, bracing which stiffens the As of clamping so.
  • the plate At the end of ser ⁇ age, during the surfacc contact on the surface between the spring plate and the toad, the plate will have the shape and the rigidity of a preloaded spherical cap and will transmit clamping pressure evenly across the corresponding surface of the toad to a large area of the rail shoe.
  • the tightening precision will be given by the shape of the clamp, easily produced with precision by molding and controlling the deformation of the plate plating.
  • the spring plate will advantageously be, as in the case of the aforementioned patent, a simple flat cut plate, the simplicity of manufacture of which guarantees the reproducibility of the result in tightening.
  • the assembly will therefore give a particularly reliable and economical elastic rail clamping system.
  • FIG. 1 represents, according to a section I.I, a device of the invention
  • FIG. 2 represents the same device in top view
  • FIG. 3 represents a perspective sketch of the toad, according to the invention.
  • FIG. 4 shows a cutting plane, without falls, from ban laminates, spring plates according to the invention.
  • the shoe of the rail 1 rests on the track support 2, here a concrete cross-member by means of an elastic plate of synthetic material 3.
  • a toad 4 of synthetic plastic material such as that known under the trade name of "nylon” is wedged between the pad 1 and a flange of the cross member 2. It is covered by a spring plate 5, here shown simply posed before tightening by a bolt 6, anchored on the cross member 2 and passing through by a hole 7 the plate 5 and the toad 4.
  • the plate 5 and the toad 4 will have a triangular or trapezoidal shape, the largest base of which bears longitudinally on the pad 1 as shown in FIG. 2, Following a large bearing surface.
  • the axis of the bolt 6 is located substantially at the geometric center of this triangular shape. Not tight, the plate 5 rests on light support plates 8, in the angular zones furthest from the axis of the bolt 6. The rest of the surface of the toad 4 forms a slight concavity which is substantially spherical or adapted to deformation. and therefore at the desired support, centered on the axis of the bolt 6. Wedging tabs 9 ensure the correct positioning of the plate 5 on the toad 4.
  • the plate 5 When tightening, after a simple initial deflection from the angular support zones 8, the plate 5 will flex progressively by bending over the peripheral edges of the toad 4, to finally settle over its entire concave surface, in the form of a cap very rigid prestressed spherical, uniformly transmitting to the underlying supporting surfaces, in particular its large bearing surface on the rail pad 1, all of its deformation pressure.
  • the spring plate 5 will advantageously have the shape of an isosceles trapezoid, the hole 7, generally oval to ensure the passage of bolts with head called “hammer”, being punched equidistant from its two bases, its ovalization being oriented perpendicular to these bases.
  • FIG. 2 The preferred form of FIG. 2 is that of an isosceles trapezoid, the acute angles of which are 60, the axis of the bolt 6 being located substantially at the center of the corresponding equilateral triangle, this form ensuring the greatest bearing surface. on the rail for correct tightening and a minimum of material used.
  • the toad 4 has on its periphery a large draft facilitating its production by molding and ensuring, in service, a good resistance to crushing and a good support base.
  • a large draft facilitating its production by molding and ensuring, in service, a good resistance to crushing and a good support base.
  • the type of rail attachment applies to all types of track with or without rails, particularly for tracks without ballast with concrete sleepers and long rails for high-speed trains, where the tightening conditions improved in resulting, that is to say, greater clamping force distributed over a larger surface of the rail shoe, make this fixing particularly suitable.

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

Abstract

Attaching device for a rail by means of elastic fastenings of the type comprising a spring-forming elastic plate tightened by a bolt against a sleeper clip of plated plastic material bearing on the rail support and on the rail base. The spring plate has a triangular or trapezoidal known shape of which the bigger side bears in parallel onto the rail base and covers the plastic sleeper clip which has a substantially identical contour and presents thereto a corresponding concave bearing surface according to the desired deformation of the plate, substantially spherical and centered on the axis of the tightening mean. Application to railway constructions, particularly of the type of long rails, for high speed trains.

Description

La présente invention se rapporte à un dispositif de fixation élastique de rail de voies ferrées, en particulier du type à fixation par boulon serrant une plaque élastique métallique formant ressort contre une pièce intermédiaire, dite crapaud, prenant appui, d'une part, sur le support de la voie, généralement une traverse et, d'autre part, sur le patin ou semelle du rail, assurant sa fixation par bridage contre le support de voie.The present invention relates to an elastic fixing device for rail tracks, in particular of the bolt fixing type tightening a metal elastic plate forming a spring against an intermediate piece, called a toad, bearing, on the one hand, on the track support, generally a cross member and, on the other hand, on the shoe or sole of the rail, ensuring its fixing by clamping against the track support.
Le crapaud assure également, en général, le calage et le positionnement latéral du tail en s 'interposant entre la bordure de son patin et un rebord correspondant du support.The toad also generally ensures the wedging and lateral positioning of the tail by interposing between the edge of its pad and a corresponding rim of the support.
Des réalisations de ce type font l'objet du brevet français 1 573 065, où le crapaud est avantageusement réalisé en une matière synthétique isolante, résistant à l'écrasement, telle que celle connue sous le nom commercial de "nylon". Cette interposition d'un matériau plastique entre la lame de ressort d'appui et la surface du patin de rail a l'avantage, en plus , d'isoler électriquement le rail de ses moyens de fixation, de répartir les pressions d'appui et de supprimer tout appui direct entre la lame de ressort et le patin de rail qui, lorsque cet appui est localisé, par exemple sur une zone de bordure plus ou moins aiguë de la iame de ressort, sont la cause d'une usure prématurée dans les zones d'appui correspondantes du patin de rail, y provoquant une amorce de rupture. On sait, an effet, qu'en service ces zones d'appui sont le siège d'un frottement relatif raible, mai., incesst^n, du fait des dilatations et contractions du rail et des passages de charges et le patin, d'un acier moins dur que la lame du ressort, en supporte toute l'usure. Ces usures localisées sont parfois l'origine d'une rupture du rail L la suite d'vne mise en trac tio n de celui-ci lors d'une contraction de refroidissement par les concentrations de contraintes qui s'y localisent.Achievements of this type are the subject of French patent 1,573,065, where the toad is advantageously made of an insulating synthetic material, resistant to crushing, such as that known under the commercial name of "nylon". This interposition of a plastic material between the support spring leaf and the surface of the rail shoe has the advantage, in addition, of electrically isolating the rail from its fixing means, of distributing the support pressures and to remove any direct support between the spring leaf and the rail shoe which, when this support is localized, for example on a more or less acute edge zone of the spring blade, are the cause of premature wear in the corresponding bearing areas of the rail pad, causing a break in there. It is known, in effect, that in service these bearing zones are the seat of a relatively low friction, May., Incesst ^ n, due to the expansions and contractions of the rail and the passage of loads and the pad, d steel less hard than the leaf of the spring, withstands all wear. This localized wear is sometimes the cause of a rupture of the rail L following a pulling of the latter during a cooling contraction by the concentrations of stresses located there.
L'objet de la présente invention est un perfectionnement de la solution précitée qui, pour un prix de revient d'attache équivalent, permet un effet de serrage beaucoup plus important restant réparti uniformément sur une surface accrue du patin.The object of the present invention is an improvement of the aforementioned solution which, for an equivalent attachment cost price, allows a much greater clamping effect remaining uniformly distributed over an increased surface of the pad.
Comme dans cette solution, elle comporte une plaque élastique formant ressort et serrée par boulon contre un crapaud en matériau plastique généralement synthétique qu'elle recouvre et plaque, d'une part, en appui contre le support de rail et, d'autre part, contre la surface de patin de rail ; en fin de serrage, la déformation de la plaque ressort plaque celle-ci sur toute la surface du crapaud qui transmet cette pre sion uniformément a ses surfaces d'appui inférieures, notamment à la surface du patin de rail. Selon l'invention, la plaque ressort aura une forme générale triangulaire ou trapézoidale, connue en soi, dont la grande base prend appui sur le patin de rail, le crapaud en matériau synthétique a une surface d'appui correspondante, recouverte par la plaque ressort, cette face ayant une forme concave selon la déformation recherchée de la plaque centrée sur l'axe du boulon de serrage et de préférence sensiblement sphérique. Le boulon de serrage traverse plaque et crapaud sensiblement au centre géométrique de leur surface.As in this solution, it comprises an elastic plate forming a spring and tightened by bolt against a toad made of generally synthetic plastic material which it covers and plates, on the one hand, bearing against the rail support and, on the other hand, against the rail pad surface; at the end of tightening, the deformation of the spring plate presses it over the entire surface of the toad which transmits this pressure uniformly to its lower bearing surfaces, in particular to the surface of the rail pad. According to the invention, the spring plate will have a general triangular or trapezoidal shape, known per se, the large base of which bears on the rail pad, the toad made of synthetic material has a corresponding bearing surface, covered by the spring plate , this face having a concave shape according to the desired deformation of the plate centered on the axis of the tightening bolt and preferably substantially spherical. The tightening bolt passes through the plate and toad substantially at the geometric center of their surface.
Alors que dans le cas du brevet précité, les déformations de la plaque ressort étaient des déformations de flexion parfaitement adaptées au type de plaque rectangulaire utilisé, dont la largeur limitée transmettait une pression pratiquement uniforme, la structure selon l'invention permet d'appliquer une telle pression sur des surfaces beaucoup plus importantes.Whereas in the case of the aforementioned patent, the deformations of the spring plate were bending deformations perfectly suited to the type of rectangular plate used, the limited width of which transmitted practically uniform pressure, the structure according to the invention makes it possible to apply a such pressure on much larger surfaces.
Dans de grandes largeurs de lames et simple flexion, les pressions d'appui resteraient concentrées dans la zcne de serrage du boulon. Dan la construction de l'invention, la plaque ressort, uniquement en appui sur ses zones d'angles au départ d u serrage , fléchit circuiairement jusqu'à aller se plaquer unifornement dans la surface concave correspondante du crapaud. Il en résulte, sur l'ensemble de la surface de la plaque, un effet d ,arc-boutement qui la rigidifie au fur et à mesure de so serrage.In large blade widths and simple bending, the contact pressures would remain concentrated in the bolt tightening area. In the construction of the invention, the spring plate, only resting on its angle zones at the start of the tightening, flexes circularly until it goes to settle down in the corresponding concave surface of the toad. This results, on the entire surface of the plate, a greenhouse effect, bracing which stiffens the As of clamping so.
En fin de serτage, lors du contact surfacc sur surface entre la plaque ressort et le crapaud, la plaque aura ia forme et la rigidité d'une calotte sphérique précontrainte et transmettra la pression de serrage uniformément à travers la surface correspondante du crapaud à une importante surface du patin de rail.At the end of serτage, during the surfacc contact on the surface between the spring plate and the toad, the plate will have the shape and the rigidity of a preloaded spherical cap and will transmit clamping pressure evenly across the corresponding surface of the toad to a large area of the rail shoe.
La précision du serrage sera donnée par la forme du crapaud, aisément réalisée avec précision par moulage et commandant la déformation de placage de la plaque. La plaque ressort sera avantageusement, comme dans le cas du brevet précité, une simple plaque découpée plate, dont la simplicité de fabrication garantit la reproductibilité de résultat dans le serrage. L'ensemble donnera donc un système de serrage élastique de rails particulièrement fiable et économique.The tightening precision will be given by the shape of the clamp, easily produced with precision by molding and controlling the deformation of the plate plating. The spring plate will advantageously be, as in the case of the aforementioned patent, a simple flat cut plate, the simplicity of manufacture of which guarantees the reproducibility of the result in tightening. The assembly will therefore give a particularly reliable and economical elastic rail clamping system.
Un exemple de réalisation de l'invention sera décrit ci-dessous en référence au dessin annexé où : - la figure 1 représente, suivant une coupe I.I un dispositif de l'in vention,An exemplary embodiment of the invention will be described below with reference to the appended drawing in which: FIG. 1 represents, according to a section I.I, a device of the invention,
- la figure 2 représente le même dispositif en vue de dessus,FIG. 2 represents the same device in top view,
- la figure 3 représente un croquis en perspective du crapaud, selon l'invention,FIG. 3 represents a perspective sketch of the toad, according to the invention,
- la figure 4 montre un plan de découpe, sans chutes, à partir de ban des laminées, des plaques ressorts selon l'invention.- Figure 4 shows a cutting plane, without falls, from ban laminates, spring plates according to the invention.
Sur la figure 1, le patin du rail 1 repose sur le εupport de voie 2, ici une traverse de béton par l'intermédiaire d'une plaque élastique en matériau synthétique 3. Un crapaud 4, en matériau synthétique plastique tel que celui connu sous le nom commercial de "nylon", est calé entre le patin 1 et un rebord de la traverse 2. Il est recouvert par une plaque-ressort 5, ici représentée simplement posée avant serrage par un boulon 6, ancré sur la traverse 2 et traversant par un trou 7 la plaque 5 et le crapaud 4. Selon l'invention, la plaque 5 et le crapaud 4 auront une forme triangulaire ou trapézoidale, dont la plus grande base prend appui longitudinalement sur le patin 1 comme il est représenté figure 2, εuivant une large surface d'appui. L'axe du boulon 6 est situé sensiblement au centre géométrique de cette forme triangulaire. Non serrée, la plaque 5 repose sur de légers plats d'appui 8, dans les zones angulaires les plus éloignées de l'axe du boulon 6. Le reste de la surface du crapaud 4 forme une légère concavité sensiblement sphérique ou adaptée à la déformâtici et donc à l'appui souhaité, centrée sur l'axe du boulon 6. Des taquets de calage 9 assurent le positionnement correct de la plaque 5 sur le crapaud 4.In FIG. 1, the shoe of the rail 1 rests on the track support 2, here a concrete cross-member by means of an elastic plate of synthetic material 3. A toad 4, of synthetic plastic material such as that known under the trade name of "nylon" is wedged between the pad 1 and a flange of the cross member 2. It is covered by a spring plate 5, here shown simply posed before tightening by a bolt 6, anchored on the cross member 2 and passing through by a hole 7 the plate 5 and the toad 4. According to the invention, the plate 5 and the toad 4 will have a triangular or trapezoidal shape, the largest base of which bears longitudinally on the pad 1 as shown in FIG. 2, Following a large bearing surface. The axis of the bolt 6 is located substantially at the geometric center of this triangular shape. Not tight, the plate 5 rests on light support plates 8, in the angular zones furthest from the axis of the bolt 6. The rest of the surface of the toad 4 forms a slight concavity which is substantially spherical or adapted to deformation. and therefore at the desired support, centered on the axis of the bolt 6. Wedging tabs 9 ensure the correct positioning of the plate 5 on the toad 4.
Au serrage, après un simple fléchissement initial à partir des zones angulaires d'appui 8, la plaque 5 fléchira progressivement en s'arcboutant sur les bordures périphériques du crapaud 4, pour se plaquer finalement sur toute sa surface concave, suivant une forme de calotte sphérique précontrainte très rigide, transmettant uniformément aux surfaces d'appui εous-jacentes, notamment sa grande surface d'appui sur le patin de rail 1, toute sa pression de déformation. Suivant la forme de réalisation préférée de l'exemple décrit, la plaque ressort 5 aura avantageusement la forme d'un trapèze isocèle, le trou 7, généralement ovale pour assurer le passage de boulons à tête dite "marteau", étant poinçonné équidistant de ses deux bases, son ovalisation étant orientée perpendiculairement à ces bases. Cette disposition permet un découpage des plaques sans chutes de métal, sauf celle de la découpe du trou 7, dans des bandes de lames plates, ainsi qu'il est illustré sur la figure 4. L'économie de métal utilisé est accentuée par le fait que, pour une pression de bridage égale, la plaque selon l'invention pourra être plus mince qu'une plaque de force de serrage équivalente travaillant en simple flexion et son énergie, et donc son coût de mise en forme, sera corrélativement réduite.When tightening, after a simple initial deflection from the angular support zones 8, the plate 5 will flex progressively by bending over the peripheral edges of the toad 4, to finally settle over its entire concave surface, in the form of a cap very rigid prestressed spherical, uniformly transmitting to the underlying supporting surfaces, in particular its large bearing surface on the rail pad 1, all of its deformation pressure. According to the preferred embodiment of the example described, the spring plate 5 will advantageously have the shape of an isosceles trapezoid, the hole 7, generally oval to ensure the passage of bolts with head called "hammer", being punched equidistant from its two bases, its ovalization being oriented perpendicular to these bases. This arrangement allows cutting of the plates without falling metal, except that of cutting the hole 7, in strips of flat blades, as illustrated in FIG. 4. The saving of metal used is accentuated by the fact that, for an equal clamping pressure, the plate according to the invention may be thinner than a plate of equivalent clamping force working in simple bending and its energy, and therefore its cost of shaping, will be correspondingly reduced.
La forme préférée de la figure 2.est celle d'un trapèze isocèle, dont les angles aigus sont de 60 , l'axe du boulon 6 se situant sensiblement au centre du triangle équilatéral correspondant, cecte forme assurant la plus grande surface d'appui sur le rail pour un serrage correct et un minimum de matériau utilisé.The preferred form of FIG. 2 is that of an isosceles trapezoid, the acute angles of which are 60, the axis of the bolt 6 being located substantially at the center of the corresponding equilateral triangle, this form ensuring the greatest bearing surface. on the rail for correct tightening and a minimum of material used.
Le crapaud 4 comporte sur sa périphérie une importante dépouille facilitant sa réalisation par moulage et lui assurant, en service, vne bonne résistance à l'écrasement et une bonne assise d'appui En variant le diamètre de la rondelle de serrage 10, on pourra modifier les conditions de serrage suivant une pratique connue.The toad 4 has on its periphery a large draft facilitating its production by molding and ensuring, in service, a good resistance to crushing and a good support base. By varying the diameter of the tightening washer 10, it is possible to modify the tightening conditions according to a known practice.
Le type de fixation de rail, selon l'invention, s'applique à tous types de voies à rails isolas ou non et particulièrement aux voies sans ballast à traverses béton et rails longs pour trains à grande vitesse, où les conditions de serrage améliorées en résultant, c'est-à-dire, plus grande force de serrage répartie sur une plus grande surface de patin de rail, rendent cette fixation particullèrement adaptée. The type of rail attachment, according to the invention, applies to all types of track with or without rails, particularly for tracks without ballast with concrete sleepers and long rails for high-speed trains, where the tightening conditions improved in resulting, that is to say, greater clamping force distributed over a larger surface of the rail shoe, make this fixing particularly suitable.

Claims

REVENDICATIONS
1 - Dispositif de fixation élastique de rail du type comportant une plaque élastique formant ressort et serrée par boulon contre un crapaud en matériau plastique, qu'elle recouvre et plaque, d'une part, en appui sur le support de rail et, d'autre part, contre la surface du patin de rail, la plaque ressort (5) ayant une forme connue triangulaire ou trapézoïdale, dont la grande base prend appui sur le patin de rail (1) parallèlement à celui-ci, caractérisée en ce que le crapaud (4) en matériau plastique qu'elle recouvre a sensiblement le même contour que la plaque (5) et lui présente une surface d'appui correspondante concave circulairement selon la déformation recherchée de la plaque et centrée sur l'axe du moyen de serrage (6).1 - Elastic rail fixing device of the type comprising an elastic plate forming a spring and tightened by bolt against a toad made of plastic material, which it covers and plates, on the one hand, bearing on the rail support and, on the other hand, against the surface of the rail pad, the spring plate (5) having a known triangular or trapezoidal shape, the large base of which rests on the rail pad (1) parallel to it, characterized in that the toad (4) of plastic material which it covers has substantially the same contour as the plate (5) and has a corresponding concave bearing surface circularly thereon according to the desired deformation of the plate and centered on the axis of the clamping means (6).
2 - Dispositif selon la revendication lj caractérisé en ce que l'axe du moyen de serrage est situé sensiblement au centre géométrique de la surface commune de la plaque (5) et du crapaud (4). 3 - Dispositif selon les revendications 1 ou 2, caractérisé en ce que 'la plaque (5) et le crapaud (4) ont une forme trapézoïdale isocèle et un trou central (7) de passage des moyens de serrage (6) ovalisé et équidistant des deux bases aux extrémités de sa grande dimension.2 - Device according to claim lj characterized in that the axis of the clamping means is located substantially at the geometric center of the common surface of the plate (5) and the toad (4). 3 - Device according to claims 1 or 2, characterized in that 'the plate (5) and the toad (4) have an isosceles trapezoidal shape and a central hole (7) for passage of the clamping means (6) oval and equidistant from the two bases to the ends of its large dimension.
4 - Dispositif selon la revendication 3, caractérisé en ce que les an- gleε aigus des sommets du trapèze sont de 60º.4 - Device according to claim 3, characterized in that the acute angles of the vertices of the trapezium are 60º.
5 -Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le crapaud (4) comporte en ses parties angulaires des embases d'appui (8) de la plaque (5) avant serrage.5 -A device according to any one of the preceding claims, characterized in that the toad (4) comprises in its angular parts of the support bases (8) of the plate (5) before tightening.
6 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le crapaud (4) comporte des taquets (9) de positionnement de la plaque (5).6 - Device according to any one of the preceding claims, characterized in that the toad (4) has tabs (9) for positioning the plate (5).
7 - Dispositif selon l'une quelconque des revendications précédentes, caractéricé en ce que le crapaud (4) a un contour en dépouille à partir cs sa base inférieure d'appui. 8 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la Dlaque ressort (5) est une plaque plate obtenue par poinçonnage et cisaillage dans une bande continue. 9 - Dispositif εelon l'une quelconque des revendications précédentes, caractérisé en ce que ia concavité de la surface supérieure du cra paud? est sensiblement sphérique et centrée εur l'axe du moyen de serrage. REVENDICAΗONS MODIFIEES7 - Device according to any one of the preceding claims, characterized in that the toad (4) has a contour undercut from cs its lower support base. 8 - Device according to any one of the preceding claims, characterized in that the spring plate (5) is a flat plate obtained by punching and shearing in a continuous strip. 9 - Device εelon any one of the preceding claims, characterized in that ia concavity of the upper surface of the cra paud? is substantially spherical and centered on the axis of the clamping means. MODIFIED CLAIMS
(reçues parle Bureau International le 13 juillet 1979 (13.07.79) 1 - Dispositif de fixation élastique de rail du type comportant une plaque élastique formant ressort et serrée par boulon contre un crapaud en matériau plastique, qu'elle recouvre et plaque, d'une part, en appui sur le support de rail et, d'autre part, contre la surface du patin de rail, la plaque ressort (5) -ayant une forme connue triangulaire ou trapézoïdale, dont la grande base prend appui sur le patin de rail (1) parallèlement à celui-ci, caractérisée en ce que le crapaud (4) en matériau plastique qu'elle recouvre a sensiblement le même contour que la plaque (5) et lui présente une surface d'appui correspondante concave circulairement selon la déformation recherchée de la plaque et centrée sur l'axe du moyen de serrage (6) .2 - Dispositif selon la revendication 1, caractérisé en ce que l'axe du moyen de serrage est situé sensiblement au centre géométrique de la surface commune de la plaque (5) et du crapaud (4). 3 - Dispositif selon les revendications 1 ou 2, caractérisé en ce que la plaque (5) et le crapaud (4) otit une forme trapézoïdale isocèle et un trou central (7) de passage des moyens de serrage (6) ovalisé 'et équidistant des deux bases aux extrémités de sa grande dimension.4 - Dispositif selon la revendication 3, caractérisé en ce que les an gles aigus des sommets du trapèze sont de 60º. 5 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le crapaud (4) comporte en ses parties angulaires des embases d'appui (8) de la plaque (5) avant serrage. 6 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le crapaud (4) a un contour en dépouille à partir de sa base inférieure d'appui. 7 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque ressort (5) est une plaque plate obtenue par poinçonnage et cisaillage dans une bande continue. 8 - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la concavité de la surface supérieure du crapaud est sensiblement sphérique et centrée sur l'axe du moyen de serrage. (received by the International Bureau on July 13, 1979 (07/13/79) 1 - Elastic rail fastening device of the type comprising an elastic plate forming a spring and tightened by bolt against a toad made of plastic material, which it covers and plate, on the one hand, bearing on the rail support and, on the other hand, against the surface of the rail pad, the spring plate (5) -having a known triangular or trapezoidal shape, the large base of which rests on the pad rail (1) parallel to it, characterized in that the toad (4) of plastic material which it covers has substantially the same contour as the plate (5) and has a corresponding concave bearing surface circularly thereon desired deformation of the plate and centered on the axis of the clamping means (6) .2 - Device according to claim 1, characterized in that the axis of the clamping means is located substantially at the geometric center of the common surface of the plate (5) e t of the toad (4) 3 - Device according to claims 1 or 2, characterized in that the plate (5) and the toad (4) otit an isosceles trapezoidal shape and a central hole (7) for passage of the clamping means (6) ovalized 'and equidistant from the two bases at the ends of its large dimension. 4 - Device according to claim 3, characterized in that the acute angles of the vertices of the trapezoid are 60º. 5 - Device according to any one of the preceding claims, characterized in that the toad (4) comprises in its angular parts of the support bases (8) of the plate (5) before tightening. 6 - Device according to any one of the preceding claims, characterized in that the toad (4) has a contour undercut from its lower support base. 7 - Device according to any one of the preceding claims, characterized in that the spring plate (5) is a flat plate obtained by punching and shearing in a continuous strip. 8 - Device according to any one of the preceding claims, characterized in that the concavity of the upper surface of the toad is substantially spherical and centered on the axis of the clamping means.
PCT/FR1979/000021 1978-03-08 1979-03-07 Spring attaching device for a rail WO1979000727A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK505779A DK505779A (en) 1978-03-08 1979-11-28 ELASTIC RAIL MOUNTING
MW3679A MW3679A1 (en) 1978-03-08 1979-12-05 Resilient rail fastening means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7806607A FR2419353A1 (en) 1978-03-08 1978-03-08 ELASTIC FIXING OF THE RAIL
FR7806607 1978-03-08

Publications (1)

Publication Number Publication Date
WO1979000727A1 true WO1979000727A1 (en) 1979-10-04

Family

ID=9205504

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1979/000021 WO1979000727A1 (en) 1978-03-08 1979-03-07 Spring attaching device for a rail

Country Status (8)

Country Link
EP (1) EP0015265A1 (en)
CH (1) CH644166A5 (en)
DE (1) DE2953082C2 (en)
DK (1) DK505779A (en)
FR (1) FR2419353A1 (en)
OA (1) OA06682A (en)
SE (1) SE8008058L (en)
WO (1) WO1979000727A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913343A (en) * 1987-10-19 1990-04-03 Pandrol Limited Electrical insulator for insulating a railway rail-fastening clip from a retaining member for it

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2115427B1 (en) * 1994-01-26 1999-03-01 Red Nac Ferrocarriles Espan PERFECTED INSULATING PART, FOR ELASTIC FASTENING OF RAILS ON BIBLOCK CROSSBARS.
CA2572807C (en) 2007-01-05 2014-08-12 Pultrusion Technique Inc. Anti-corrosive insulating clip composed entirely of a polymer composition

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1573065A (en) * 1968-03-15 1969-07-04
US3458132A (en) * 1968-01-05 1969-07-29 Portec Inc Rail-to-tie fastener
FR2079870A6 (en) * 1970-02-16 1971-11-12 Sonneville Roger
FR2236055A2 (en) * 1973-07-06 1975-01-31 Nord Ressorts Device for fixing a rail to a sleeper - contg. a plastics packing piece to prevent wear

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287551A1 (en) * 1974-10-11 1976-05-07 Nord Ressorts ELASTIC FIXING DEVICE OF A RAIL ON ITS SUPPORTS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458132A (en) * 1968-01-05 1969-07-29 Portec Inc Rail-to-tie fastener
FR1573065A (en) * 1968-03-15 1969-07-04
FR2079870A6 (en) * 1970-02-16 1971-11-12 Sonneville Roger
FR2236055A2 (en) * 1973-07-06 1975-01-31 Nord Ressorts Device for fixing a rail to a sleeper - contg. a plastics packing piece to prevent wear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913343A (en) * 1987-10-19 1990-04-03 Pandrol Limited Electrical insulator for insulating a railway rail-fastening clip from a retaining member for it

Also Published As

Publication number Publication date
FR2419353B1 (en) 1982-04-23
OA06682A (en) 1982-05-31
DE2953082A1 (en) 1981-04-02
EP0015265A1 (en) 1980-09-17
FR2419353A1 (en) 1979-10-05
SE8008058L (en) 1980-11-18
CH644166A5 (en) 1984-07-13
DK505779A (en) 1979-11-28
DE2953082C2 (en) 1983-08-11

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