EP2603637B1 - Track sleeper and switching gear made of composite material - Google Patents
Track sleeper and switching gear made of composite material Download PDFInfo
- Publication number
- EP2603637B1 EP2603637B1 EP10766079.7A EP10766079A EP2603637B1 EP 2603637 B1 EP2603637 B1 EP 2603637B1 EP 10766079 A EP10766079 A EP 10766079A EP 2603637 B1 EP2603637 B1 EP 2603637B1
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- EP
- European Patent Office
- Prior art keywords
- composite material
- sleeper
- track
- sleepers
- assembly according
- 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.)
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- 239000002131 composite material Substances 0.000 title claims description 16
- 241001669679 Eleotris Species 0.000 title claims 6
- 239000004567 concrete Substances 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 235000013311 vegetables Nutrition 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 6
- 239000011513 prestressed concrete Substances 0.000 description 6
- 238000010292 electrical insulation Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 241000269420 Bufonidae Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/44—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from other materials only if the material is essential
Definitions
- the present invention relates to the field of railway infrastructure, in particular track materials, and relates to an assembly formed by a concrete slab and a cross member for composite material tracks and track apparatus.
- the sleepers used in applications laid on concrete slabs are generally made of prestressed concrete or not and are provided with a central longitudinal groove, allowing the insertion of bolts for the attachment of track elements, such as as saddles, attachments, insulators, support stops and other elements of a switchgear.
- sleepers known to date are laid and poured into a concrete slab and are therefore not stressed in bending.
- Such sleepers are known in particular by FR-A-2,482,990 and allow to meet all the mechanical requirements. For this purpose, they have a height of the order of 180 mm to 190 mm, to ensure good mechanical strength, by the insertion of prestressed elements or not and in particular because of the longitudinal longitudinal groove.
- sleepers require the realization of an important disbursing during installation, to take into account their height.
- the sleepers thus produced prestressed concrete or not, have a very high density, resulting in unit weights of sleepers between 100 Kg and 450 Kg, so it is necessary to implement handling means and the transport of these sleepers is relatively expensive.
- sleepers are still poured into a concrete slab, so that a realization of heavy and bulky sleepers is not necessary.
- the metal profile is embedded in the concrete, it is electrically connected to the ground, so that it allows a propagation of stray currents generated by the return of the traction current of the rails.
- CH-A-447242 a monolithic crossbar, in which the prestressed concrete is replaced by a molded synthetic material provided with a reinforcing reinforcement. Such an achievement is comparable to that of reinforced concrete sleepers. As a result, this cross is massive and comparable in weight to wooden sleepers or concrete and is also intended to be used on conventional railways, that is to say with ballast.
- the present invention aims to overcome these disadvantages by proposing an assembly incorporating a concrete slab and a crossing for track and track apparatus, low height, low weight and providing total electrical insulation between two rails.
- the crosspiece for track and switchgear provided with a longitudinal central groove for securing fastening of rails, saddles, insulators, support-stops or the like, this crossbeam being embedded in a slab concrete and being provided with bolts for fixing a track rail, for example with the interposition of a saddle and implementation of toads, is made in the form of a profile made of a composite material.
- FIG. 1 of the accompanying drawings shows a cross-piece 1 for track and track apparatus, provided with a longitudinal center groove 2, for attaching fasteners for rails, saddles, insulators, support-stops or the like.
- a crossbar 1 is implemented for fixing a track rail 3, is embedded in a concrete slab 4 and is provided with bolts 5 for fixing said rail track 3, for example with the interposition of a saddle 6 and implementation of toads 7.
- this crossbar 1 is made of a composite material.
- the composite material is a pultruded composite material.
- Such a composite material is constituted by a resin matrix surrounding a reinforcement composed of fibers.
- the resin used is of the polyester, epoxy, phenolic or thermosetting type and the fibers are glass, mineral, vegetable or aramid fibers.
- the materials thus obtained have excellent mechanical characteristics and, in particular, a very high strength-to-weight ratio.
- the fiber reinforcement provides the mechanical strength, namely the tensile strength and rigidity, the tensile modulus in the direction of the fibers being greater than those of the steel.
- the resin matrix binds the fibers forming the armature and distributes the compression or bending forces, while providing chemical protection and electrical insulation.
- the embodiment of the cross-member 1 by pultrusion makes it possible to obtain the optimum mechanical properties of a composite material, which is, by definition, anisotropic, by preferential orientation of the reinforcing fibers. Indeed, during pultrusion, the reinforcing fiber layers are arranged in the directions of mechanical stress, so that the product obtained is perfectly suited to the intended application.
- the method of producing the crossbar 1 is of known type and does not require a detailed description. It suffices to recall that a fiber reinforcement impregnated with a thermosetting resin is pulled through a die mold, in which shaping and crosslinking takes place. Such a method makes it possible to obtain profiles of great length and of all shapes, these profiles being cut to predetermined lengths, at their exit from the die mold.
- the height of the crossbar 1 can be very significantly reduced compared to the height of conventional sleepers prestressed concrete or not, namely to have a height of the order of 80 mm, so that for the installation of such sleepers, the civil works are very significantly reduced, allowing a significant saving on the volume of the concrete slab, in which the crossbar is inserted. This results in substantial gains on the site, both in terms of the duration of the work and the costs of the latter.
- the cross member according to the invention in a reduced footprint, its weight is very significantly reduced, namely of the order of eight kilograms per linear meter.
- Such a reduction in weight and space, compared with a concrete crossbar, whose weight per linear meter is approximately 90 kilos, facilitates handling operations, both during the blank assembly at the factory and during assembly on site and thus the implementation without special lifting tools, such as bridges or forklifts.
- the precise placement of sleepers during assembly no longer requires handling tools and is therefore easier, while allowing a faster and more accurate installation, the adjustment of sleepers being possible manually.
- on-site transportation and storage are facilitated.
- the composite cross member is also an electrical insulator and the insulation problems of one rail relative to the other and the insulation of the railway, usual to this day, are completely eliminated.
- the embodiment of the cross member 1 composite material because of the embodiment of the cross member 1 composite material, it is completely insensitive to corrosion, unlike metal profiles used in the known prestressed concrete sleepers.
- the mounting of the track rails 3 no longer requires the use of additional electrical insulating devices, such as those provided with the traditional crosspieces, namely insulating insoles. , insulating guns and insulating washers.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Description
La présente invention concerne le domaine de l'infrastructure ferroviaire, en particulier des matériels de voie, et a pour objet un ensemble formé par une dalle de béton et une traverse pour voies et appareils de voie en matériau composite.The present invention relates to the field of railway infrastructure, in particular track materials, and relates to an assembly formed by a concrete slab and a cross member for composite material tracks and track apparatus.
Actuellement, les traverses mises en oeuvre dans les applications posées sur dalles béton, sont généralement réalisées en béton armé précontraint ou non et sont munies d'une rainure longitudinale médiane, permettant l'insertion de boulons pour la fixation d'éléments de voie, tels que des selles, des attaches, des isolateurs, des supports arrêts et autres éléments d'un appareil de voie.Currently, the sleepers used in applications laid on concrete slabs, are generally made of prestressed concrete or not and are provided with a central longitudinal groove, allowing the insertion of bolts for the attachment of track elements, such as as saddles, attachments, insulators, support stops and other elements of a switchgear.
Les traverses connues à ce jour sont posées et coulées dans une dalle en béton et ne sont donc pas sollicitées en flexion. De telles traverses sont notamment connues par
Cependant, ces traverses connues nécessitent la réalisation d'un décaissage important lors de la pose, ce pour tenir compte de leur hauteur. En outre, les traverses ainsi réalisées, en béton précontraint ou non, présentent une masse volumique très importante, entraînant des poids unitaires des traverses compris entre 100 Kg et 450 Kg, de sorte qu'il est nécessaire de mettre en oeuvre des moyens de manutention lourds et que le transport de ces traverses est relativement coûteux. Or, dans les applications habituelles avec voies en chaussée, les traverses sont toujours coulées dans une dalle de béton, de sorte qu'une réalisation de traverses lourdes et encombrantes n'est pas nécessaire.However, these known sleepers require the realization of an important disbursing during installation, to take into account their height. In addition, the sleepers thus produced, prestressed concrete or not, have a very high density, resulting in unit weights of sleepers between 100 Kg and 450 Kg, so it is necessary to implement handling means and the transport of these sleepers is relatively expensive. However, in the usual applications with roadways, sleepers are still poured into a concrete slab, so that a realization of heavy and bulky sleepers is not necessary.
Enfin, la rainure médiane longitudinales de ces traverses connues est toujours réalisée à partir d'un profilé métallique noyé dans le béton, de sorte que ce profilé créé un shuntage entre les deux files de rail fixées sur les traverses, de sorte qu'il est nécessaire de mettre en oeuvre, à chaque attache, des isolateurs destinés à assurer l'isolation électrique de la voie.Finally, the longitudinal central groove of these known sleepers is always made from a metal profile embedded in the concrete, so that this profile creates a shunt between the two rails fixed on the rails, so it is necessary to implement, at each fastener, insulators intended to ensure the electrical insulation of the track.
En outre, du fait que le profilé métallique est noyé dans le béton, il est relié électriquement à la terre, de sorte qu'il permet une propagation des courants vagabonds générés par le retour du courant de traction des rails.In addition, because the metal profile is embedded in the concrete, it is electrically connected to the ground, so that it allows a propagation of stray currents generated by the return of the traction current of the rails.
On connaît également par
La présente invention a pour but de pallier ces inconvénients en proposant un ensemble intégrant une dalle de béton et une traverse pour voie et appareil de voie, de hauteur réduite, de faible poids et assurant une isolation électrique totale entre deux files de rail.The present invention aims to overcome these disadvantages by proposing an assembly incorporating a concrete slab and a crossing for track and track apparatus, low height, low weight and providing total electrical insulation between two rails.
A cet effet, la traverse pour voie et appareil de voie, pourvue d'une rainure médiane longitudinale pour la fixation d'attache de rails, de selles, d'isolateurs, de supports-arrêts ou analogues, cette traverse étant noyée dans une dalle de béton et étant pourvue de boulons de fixation d'un rail de voie, par exemple avec interposition d'une selle et mise en oeuvre de crapauds, est réalisée sous forme d'un profilé en un matériau composite.For this purpose, the crosspiece for track and switchgear, provided with a longitudinal central groove for securing fastening of rails, saddles, insulators, support-stops or the like, this crossbeam being embedded in a slab concrete and being provided with bolts for fixing a track rail, for example with the interposition of a saddle and implementation of toads, is made in the form of a profile made of a composite material.
L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dan lesquels :
- la
figure 1 est une vue perspective d'une traverse pour être intégrée dans l'ensemble conforme à l'invention, et - la
figure 2 est une vue analogue à celle de lafigure 1 représentant la fixation d'un rail sur la traverse de lafigure 1 , ladite traverse étant noyée , conforme à l'invention, dans une dalle de béton.
- the
figure 1 is a perspective view of a cross member to be integrated into the assembly according to the invention, and - the
figure 2 is a view similar to that of thefigure 1 representing the fixing of a rail on the cross of thefigure 1 said cross-member being embedded in accordance with the invention in a concrete slab.
La
Comme le montre la
Conformément à l'invention, cette traverse 1 est réalisée en un matériau composite. De préférence, le matériau composite est un matériau composite pultrudé.According to the invention, this crossbar 1 is made of a composite material. Preferably, the composite material is a pultruded composite material.
Un tel matériau composite est constitué par une matrice en résine entourant une armature composée de fibres. De préférence, la résine mise en oeuvre est du type polyester, époxy, phénolique ou thermodurcissable et les fibres sont des fibres de verre, minérales, végétales ou d'aramide.Such a composite material is constituted by a resin matrix surrounding a reinforcement composed of fibers. Preferably, the resin used is of the polyester, epoxy, phenolic or thermosetting type and the fibers are glass, mineral, vegetable or aramid fibers.
Les matériaux ainsi obtenus présentent d'excellentes caractéristiques mécaniques et, en particulier, un rapport résistance-poids très élevé. Ainsi, l'armature en fibres assure la tenue mécanique, à savoir la résistance à la traction et la rigidité, les modules de traction dans la direction des fibres étant supérieurs à ceux de l'acier. Par ailleurs, la matrice en résine lie les fibres formant l'armature et répartit les efforts de compression ou de flexion, tout en assurant la protection chimique et l'isolation électrique.The materials thus obtained have excellent mechanical characteristics and, in particular, a very high strength-to-weight ratio. Thus, the fiber reinforcement provides the mechanical strength, namely the tensile strength and rigidity, the tensile modulus in the direction of the fibers being greater than those of the steel. In addition, the resin matrix binds the fibers forming the armature and distributes the compression or bending forces, while providing chemical protection and electrical insulation.
La réalisation de la traverse 1 par pultrusion permet d'obtenir les propriétés mécaniques optimales d'un matériau composite, qui est, par définition, anisotropique, par orientation préférentielle des fibres renforts. En effet, lors de la pultrusion, les couches de fibres renforts sont disposées selon les directions de sollicitation mécanique, de sorte que le produit obtenu est parfaitement adapté à l'application prévue.The embodiment of the cross-member 1 by pultrusion makes it possible to obtain the optimum mechanical properties of a composite material, which is, by definition, anisotropic, by preferential orientation of the reinforcing fibers. Indeed, during pultrusion, the reinforcing fiber layers are arranged in the directions of mechanical stress, so that the product obtained is perfectly suited to the intended application.
Le procédé de réalisation de la traverse 1 est de type connu et ne nécessite pas de description en détail. Il suffit simplement de rappeler qu'une armature en fibre imprégnée d'une résine thermodurcissable est tirée à travers un moule filière, dans lequel s'effectue la mise en forme et la réticulation. Un tel procédé permet l'obtention de profilés de grande longueur et de toutes formes, ces profilés étant débités à des longueurs préétablies, à leur sortie du moule filière.The method of producing the crossbar 1 is of known type and does not require a detailed description. It suffices to recall that a fiber reinforcement impregnated with a thermosetting resin is pulled through a die mold, in which shaping and crosslinking takes place. Such a method makes it possible to obtain profiles of great length and of all shapes, these profiles being cut to predetermined lengths, at their exit from the die mold.
Du fait de la réalisation de la traverse 1 sous forme d'un profilé en matériau composite, la hauteur de la traverse 1 peut être très nettement diminuée par rapport à la hauteur des traverses traditionnelles en béton précontraint ou non, à savoir présenter une hauteur de l'ordre de 80 mm, de sorte que, pour la pose de telles traverses, les travaux de génie civil sont très nettement réduits, permettant une économie importante sur le volume de la dalle de béton, dans laquelle la traverse est insérée. Il en résulte des gains substantiels sur le chantier, tant en ce qui concerne la durée des travaux que les coûts de ces derniers.Due to the realization of the cross member 1 in the form of a composite material profile, the height of the crossbar 1 can be very significantly reduced compared to the height of conventional sleepers prestressed concrete or not, namely to have a height of the order of 80 mm, so that for the installation of such sleepers, the civil works are very significantly reduced, allowing a significant saving on the volume of the concrete slab, in which the crossbar is inserted. This results in substantial gains on the site, both in terms of the duration of the work and the costs of the latter.
Par ailleurs, du fait de la réalisation de la traverse conforme à l'invention sous un encombrement réduit, son poids est très nettement réduit, à savoir de l'ordre de huit kilogrammes par mètre linéaire. Une telle réduction de poids et d'encombrement, par comparaison avec une traverse en béton, dont le poids par mètre linéaire est approximativement de 90 kilos, permet de faciliter les opérations de manutention, tant lors du montage à blanc en usine que lors du montage sur site et ainsi la mise en oeuvre sans outils de levage particuliers, tels que des ponts ou des chariots à fourches. Il en résulte également que le placement précis des traverses lors du montage ne nécessite plus d'outils de manutention et est donc facilité, tout en permettant une pose plus rapide et plus précise, l'ajustement des traverses étant possible manuellement. Enfin, le transport sur site, ainsi que le stockage sont facilités.Furthermore, because of the realization of the cross member according to the invention in a reduced footprint, its weight is very significantly reduced, namely of the order of eight kilograms per linear meter. Such a reduction in weight and space, compared with a concrete crossbar, whose weight per linear meter is approximately 90 kilos, facilitates handling operations, both during the blank assembly at the factory and during assembly on site and thus the implementation without special lifting tools, such as bridges or forklifts. It also results that the precise placement of sleepers during assembly no longer requires handling tools and is therefore easier, while allowing a faster and more accurate installation, the adjustment of sleepers being possible manually. Finally, on-site transportation and storage are facilitated.
La traverse composite est, par ailleurs, un isolant électrique et les problèmes d'isolation d'un rail par rapport à l'autre et de l'isolation de la voie ferrée, habituels à ce jour, sont totalement éliminés. En outre, du fait de la réalisation de la traverse 1 en matière composite, celle-ci est totalement insensible à la corrosion, contrairement aux profilés métalliques mis en oeuvre dans les traverses en béton précontraint connues.The composite cross member is also an electrical insulator and the insulation problems of one rail relative to the other and the insulation of the railway, usual to this day, are completely eliminated. In addition, because of the embodiment of the cross member 1 composite material, it is completely insensitive to corrosion, unlike metal profiles used in the known prestressed concrete sleepers.
Du fait des propriétés d'isolant électrique du matériau composite constituant la traverse 1, le montage des rails de voie 3 ne nécessite plus la mise en oeuvre de dispositifs isolants électriques supplémentaires, tels que ceux prévus avec les traverses traditionnelles, à savoir des semelles isolantes, des canons isolants et des rondelles isolantes.Due to the electrical insulation properties of the composite material constituting the cross-member 1, the mounting of the
Grâce à l'invention, il est possible de réaliser des traverses pour les applications en chaussée, en particulier pour les voies de tramway présentant un encombrement et un poids très faible par rapport à ceux des traverses correspondantes en béton précontraint ou non et dont la mise en oeuvre est rapide et aisée et ne nécessite aucun moyen particulier de levage.Thanks to the invention, it is possible to make sleepers for roadway applications, in particular for tramways having a footprint and a very low weight compared to those of the corresponding sleepers of prestressed concrete or not and whose implementation implemented is fast and easy and does not require any particular means of lifting.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté au dessin annexé. Des modifications restent possibles, dans le cadre des revendications, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and shown in the accompanying drawing. Modifications remain possible within the scope of the claims, without departing from the scope of the invention.
Claims (5)
- Assembly formed by a concrete slab (4) and a sleeper (1) for tracks and track equipment, the sleeper (1) forming a profile, the upper surface of which is provided with a longitudinal medial groove (2) for fixing rail attachments, sole plates, isolators, support stops or the like and for supporting them, the sleeper (1) being embedded in the concrete slab (4), the sleeper being provided with bolts (5) for fixing a track rail (3), for example with the interposition of a sole plate (6) and the use of clips (7), the sleeper being made from a composite material.
- Assembly according to claim 1, characterised in that the composite material is a pultruded composite material.
- Assembly according to any of claims 1 and 2, characterised in that the composite material is formed by a resin matrix surrounding an armature composed of fibres.
- Assembly according to claim 3, characterised in that the type of resin is a polyester, epoxy, phenolic or thermosetting resin.
- Assembly according to claim 3, characterised in that the fibres are glass, mineral vegetable or aramid fibres.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR2010/051696 WO2012020179A1 (en) | 2010-08-11 | 2010-08-11 | Track sleeper and switching gear made of composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2603637A1 EP2603637A1 (en) | 2013-06-19 |
| EP2603637B1 true EP2603637B1 (en) | 2019-09-25 |
Family
ID=43827167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10766079.7A Active EP2603637B1 (en) | 2010-08-11 | 2010-08-11 | Track sleeper and switching gear made of composite material |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2603637B1 (en) |
| KR (1) | KR20140039131A (en) |
| CN (1) | CN103189569A (en) |
| WO (1) | WO2012020179A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA025408B1 (en) * | 2013-01-14 | 2016-12-30 | Гринрэйл С.Р.Л. | Composite railway sleeper |
| CN105924226B (en) * | 2016-04-26 | 2018-02-13 | 大连交通大学 | A kind of anti-corrosion reinforced concrete sleeper and preparation method thereof |
| CN109811599B (en) * | 2019-03-21 | 2024-06-04 | 南京隆穹生物科技有限公司 | Shield constructs construction storage battery car runway sleeper |
| FR3122886A1 (en) | 2021-05-17 | 2022-11-18 | Vossloh Cogifer | Assembly comprising at least one rail and one support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2410433A1 (en) * | 1974-03-05 | 1975-09-18 | Klaus Dipl Ing Dr Hack | Railway sleeper for single or double track traffic - is made of composite, elastic material and has indentations for insertion of rails |
| WO2005100691A1 (en) * | 2004-04-13 | 2005-10-27 | The University Of Southern Queensland | A railway sleeper |
| US20050236494A1 (en) * | 2004-04-21 | 2005-10-27 | Little Michael R | Extruded railroad tie for use with steel tie |
| WO2007113896A1 (en) * | 2006-04-03 | 2007-10-11 | Sekisui Chemical Co., Ltd. | Synthetic crosstie and process for producing the same |
| WO2008048095A1 (en) * | 2006-10-16 | 2008-04-24 | Lankhorst Recycling Products B.V. | Railroad tie and method for building or adapting a railroad. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1584648A (en) * | 1924-11-10 | 1926-05-11 | Benjamin F Gwatkin | Rail-bearing guide |
| CH447242A (en) * | 1966-11-24 | 1967-11-30 | Poor & Co | Railroad tie |
| FR2482990A1 (en) | 1980-05-21 | 1981-11-27 | Socader Sa | Reinforced concrete railway sleeper - has longitudinal groove which retains one end of rail fastening clips |
| FR2865225B1 (en) * | 2004-01-19 | 2006-04-14 | Vossloh Cogifer | LANE TRACK MOUNT BRACKET ASSEMBLY, AND USE OF SUCH SUPPORT ASSEMBLY FOR FASTENING RAILWAY OR VIGNOLINE RAILWAY APPARATUS. |
| FR2942482B1 (en) * | 2009-02-24 | 2016-01-29 | Vossloh Cogifer | TRAVERSE FOR ROAD AND TRACKING APPARATUS IN COMPOSITE MATERIAL |
-
2010
- 2010-08-11 KR KR1020137006012A patent/KR20140039131A/en not_active Application Discontinuation
- 2010-08-11 EP EP10766079.7A patent/EP2603637B1/en active Active
- 2010-08-11 CN CN2010800693429A patent/CN103189569A/en active Pending
- 2010-08-11 WO PCT/FR2010/051696 patent/WO2012020179A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2410433A1 (en) * | 1974-03-05 | 1975-09-18 | Klaus Dipl Ing Dr Hack | Railway sleeper for single or double track traffic - is made of composite, elastic material and has indentations for insertion of rails |
| WO2005100691A1 (en) * | 2004-04-13 | 2005-10-27 | The University Of Southern Queensland | A railway sleeper |
| US20050236494A1 (en) * | 2004-04-21 | 2005-10-27 | Little Michael R | Extruded railroad tie for use with steel tie |
| WO2007113896A1 (en) * | 2006-04-03 | 2007-10-11 | Sekisui Chemical Co., Ltd. | Synthetic crosstie and process for producing the same |
| WO2008048095A1 (en) * | 2006-10-16 | 2008-04-24 | Lankhorst Recycling Products B.V. | Railroad tie and method for building or adapting a railroad. |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2603637A1 (en) | 2013-06-19 |
| KR20140039131A (en) | 2014-04-01 |
| WO2012020179A1 (en) | 2012-02-16 |
| CN103189569A (en) | 2013-07-03 |
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