EP2845951A1 - Ummantelung für Schienenfahrzeugsschienen - Google Patents

Ummantelung für Schienenfahrzeugsschienen Download PDF

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Publication number
EP2845951A1
EP2845951A1 EP13183038.2A EP13183038A EP2845951A1 EP 2845951 A1 EP2845951 A1 EP 2845951A1 EP 13183038 A EP13183038 A EP 13183038A EP 2845951 A1 EP2845951 A1 EP 2845951A1
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EP
European Patent Office
Prior art keywords
rail
jacket
jacket according
branches
elastomeric material
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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Application number
EP13183038.2A
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English (en)
French (fr)
Inventor
Joseph Rode
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.)
Prefarails Holding
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Prefarails Holding
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Publication date
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Priority to EP13183038.2A priority Critical patent/EP2845951A1/de
Priority to PCT/EP2014/068881 priority patent/WO2015032879A1/fr
Publication of EP2845951A1 publication Critical patent/EP2845951A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise

Definitions

  • the present invention relates to a jacket for embedding a rail or part of a rail intended for the circulation of rail vehicles, in particular vehicles of the tramway type, trains, cranes and the like ... said rail being at least partially embedded by example in a traffic lane or pedestrian, or in a grassed area.
  • This coating technique using an elastomeric synthetic material makes it possible to insulate the rail electrically from its environment, makes it possible to secure the rail in its support while allowing a dilatation and deformation of the rail as provided according to the technical standards. , and allows to substantially absorb the vibrations resulting from the passage of a rail vehicle on said rails, thus reducing the risk of damage to the environment and the noise pollution due to vibration.
  • the document DE-4344815 plans to apply lateral and longitudinal absorbent elements made of elastic material, in particular rubber or a mixture of elastomers, on existing, surface or apparent tracks, in order to absorb the vibrations and to reduce the nuisances caused by the noise generated by the passage of trains or other railway vehicles. It also provides for the wrapping of the runner rail.
  • the patent application EP-0854234 discloses an anti-noise device comprising a jacket of elastic and resistant material, in particular vulcanized rubber or recycled, arranged to wrap at least one side flank of the rail. According to an embodiment described, this jacket may also include a portion arranged under the sole or shoe of said rail. Although this jacket has proved its worth, it also has certain disadvantages, more particularly, this jacket consists of various elements which are arranged against each other by forming long lengths of joint and therefore presents a risk of lack of watertightness, with the consequence of a decrease in electrical insulation when the rail is embedded in an environment such as a concrete slab or grassy ground. Controlling this risk requires additional measures that can be costly, including the use of glues and other sealants adapted to existing climatic conditions.
  • the document DE-3345388 describes an alternative embodiment of this type of jacket.
  • the object of the invention is to provide a jacket for the coating of rail or rail portion which is intended for the circulation of rail vehicles, including tram-type vehicles trains, cranes or other and which is at least partially embedded in a concrete support, jacket which while providing sound insulation and vibratory comparable to that provided by the known coating jackets, allows easy mounting and ensures good electrical insulation of the rail relative to its environment.
  • the concrete support may for example be constituted by an automobile or pedestrian traffic lane or a concrete slab covered with a grassed surface, or a cast concrete rail support.
  • the jacket should still ensure a good attachment of the rail to its support.
  • the present invention relates to a jacket for the rail coating intended for the circulation of rail vehicles, which consists of a section of elastomeric material having a generally U-shaped section in one piece whose base serves as a support for rail slider and at least one of the branches of the U has a section that at least partially matches the lateral profile of the rail, and at least one of the branches has a retaining means.
  • such a profile consists of a single piece of elastomeric material and therefore does not have a longitudinal seal.
  • the length of the jacket is adapted to the length of the rail so as to reduce the number of transverse joints.
  • the solidity and the insulation, in particular the electrical insulation, are notably improved with respect to jackets known in the state of the art which generally consist of several assembled elements, possibly by gluing.
  • the profile of the invention can be threaded onto the rail by spacing the branches of the U or by sliding from a rail section end. It is preferably produced in great lengths, possibly directly on the rail.
  • the base of the U serves as an elastic support for the rail on its rigid support.
  • the base of the U can thus play the role of the ballast of a conventional way.
  • the branches of the U extend to near the upper surface of the rail to be wrapped.
  • the branches of the U extend advantageously at the same height as the concrete and form a seal between the rail and the concrete on the surface of the latter.
  • the branches of the U-profile can extend to a level slightly below the top of the rail, for example to the foot of the rail head.
  • the upper surface of at least one of the legs of the U can be inclined downwards away from the rail, preferably in the extension of the inclined surface of the concrete support containing said rail.
  • one side of at least one of the rising branches of the U substantially matches the lateral profile of the rail.
  • the two rising branches essentially follow the lateral profile of the rail.
  • the rail is well positioned in its housing and the vibrations transmitted to the rail during the passage of a railway vehicle are damped before being transmitted to the surrounding environment.
  • the outer side has a means for retaining the jacket in the concrete support or raft in which the rail is intended to be embedded.
  • This retaining means may consist of an upwardly directed shoulder, that is to say that the surface vector representative of the upper surface of the shoulder and normal thereto comprises a vertical component oriented towards the end. opposite to the base of the U.
  • This shoulder is intended to fix the jacket and indirectly the rail in its housing. It is therefore possible to avoid fixing the rail by metal fasteners to its support.
  • the jacket can thus ensure the role of the ballast used in the case of conventional channels and fixed the rail vertically and transversely on and in its rigid support.
  • the retaining means may also consist of a recess formed in the outer face of at least one of the branches of the U. It can also provide a combination of one or more shoulders and one or more recesses.
  • the jacket of the invention improves the electrical insulation of the rail relative to its environment while reducing the transmission of vibrations during the passage of railway vehicles. It also allows advantageous joining of the rail in its housing by avoiding or at least reducing the metal fasteners. Maintenance of a track comprising rails wrapped with a jacket according to the invention is significantly reduced, generally due to the absence of ballast and the absence or reduction of the number of corrodible metal fasteners.
  • the jacket of the invention is made of an elastomeric material.
  • recesses in particular longitudinal recesses, of various dimensions in the core of the material.
  • the base of the U can be traversed by longitudinal recesses of small dimensions while the branches of the U, particularly at the place facing the web of the rail, may have recesses of larger dimensions.
  • the elastomeric material various types may be suitable. In order to guarantee the insulation of the rail vis-à-vis its environment, the elastomeric material must retain its mechanical properties and its insulating characteristics in a temperature range from -50 ° C to 100 ° C and can not degrade significantly by the presence of water or as a result of climatic conditions. It must also be rot-proof and resist chemical agents such as oils, hydrocarbons, fats and diluted acids.
  • a suitable material for this type of application is a composite material based on rubber granules, especially rubber recycled from tires, bonded by a resin, especially to polyurethane or polyethylene base, for example low density PE, or recycled PE. PE is preferred because it is less likely to absorb water than PU.
  • the rubber particles can in particular be obtained from ground tires; that is, the rubber is separated from the metal cords and tires and the rubber is ground.
  • ground tire particles may be used; i.e., the above-mentioned separation step is avoided. It appears that the metal particles and / or textile present in the composite material serve as load and reinforcement for the material.
  • an advantageous manufacturing method of jacket for the coating of rail for the circulation of railway vehicles may comprise the following steps: provision of the rubber particles, in particular recycled rubber from tires or ground tire particles, having a size of 0.01 to 5 mm, provided with a binder based on resin, especially based on polyurethane or polyethylene, for example low density PE, or recycled PE, and extrusion of the mixture particles / binder in a proportion of 2 to 20% by weight of binder in a suitable extruder known per se, equipped with a tool for obtaining the desired section section corresponding to the jacket section when cooled.
  • the binder is included in the mixture in a proportion of 3 to 15% by weight, most preferably in a proportion of 5 to 10% by weight.
  • the elastomeric material is in particular implemented by extrusion, it is possible to provide a casing made of an elastomer material different from the first.
  • This envelope can be coextruded during the extrusion of the jacket.
  • the elastomeric material of the casing does not comprise a metal filler and enhances the sealing and electrical insulation.
  • the envelope may advantageously comprise pigments which shade it in a manner adapted to its environment, such as paving, a grassed surface, etc.
  • the rail is isolated from its support and the surrounding ground by a thickness of elastic material which on the one hand constitutes an electrical insulation which prevents the passage of leakage currents from the rail to the surrounding ground, and which, d On the other hand, it absorbs at least partially the vibrations generated by the passage of trains or tramways on the railway. The vibrations transmitted to the surrounding ground are thus significantly reduced and the noise nuisance reduced.
  • the jacket serves to coat a rail of a railway intended in particular for the circulation of trains or trams.
  • the jacket bears the general reference mark 1. It consists of an elastomeric material preferably produced in a profile conforming to the overall shape of a U and in one piece.
  • the base 3 of the U serves to support the pad 5 of the rail 7. It transmits the elastic force of the rails 7 to the rigid support and / or the ground. At least in part, it plays the role of the ballast of a conventional railroad.
  • the branches 11 and 13 of the U 1 fit on their inner side generally the profile of the rail 7. Their outer side has at least one shoulder 15, 17, 19 and 21.
  • Each shoulder is arranged such that it has a surface facing the end opposite to the base of the U; that is to say, the vector representative of said surface of the shoulder has a component facing the end opposite to the base of U 1.
  • the branches 11 and 13 thus hold the rail in its housing. When the rail thus wrapped is embedded in a slab or a concrete support, the branches 11 and 13 elastically take up the transverse forces as the ballast of a conventional line. They also dampen vibrations when passing railway vehicles, thus reducing the noise nuisance associated with the circulation of railway vehicles.
  • the jacket wraps a rail groove quite common for tramways passing through pedestrian areas or on a road traffic.
  • the branches 11 and 13 extend essentially up to the height of the peak of the upper surface of the rail 7.
  • the rigid support (not shown) is advantageously arranged at this same height.
  • the branches 11 and 13 The jacket of the invention is made of an elastomeric material.
  • recesses in particular longitudinal recesses, of various dimensions in the core of the material.
  • the base of the U can be traversed by longitudinal recesses of small dimensions 25 whereas the branches 11 and 13 of the U, particularly at the place facing the web of the rail, can comprise recesses of larger dimensions. and 29.
  • the jacket of the invention is advantageously produced so as to form a section in one piece. It preferably has a length adapted to the length of the rails used so as to avoid the transverse joints along the length of a rail.
  • the elastomeric material various types may be suitable. However, care must be taken to ensure that the rail is insulated electrically from its environment under various climatic conditions; the elastomeric material must in particular retain its mechanical properties and insulating characteristics in a temperature range of -50 ° C to 100 ° C and can not be significantly degraded by the presence of water or as a result of conditions of use. aggressive environment. It must be rotproof and resistant to chemicals such as oils, hydrocarbons, fats and diluted acids.
  • the elastomer material is a composite material based on rubber granules, especially rubber recycled from tires, bonded with a resin, in particular based on polyurethane or polyethylene, for example low density PE, or Recycled PE.
  • PE is preferred because it is less likely to absorb water than PU.
  • the rubber particles can in particular be obtained from ground tires; that is, the rubber is separated from the metal cords and tires and the rubber is ground.
  • the rubber particles may have dimensions ranging from 0.01 to 5 mm, and more.
  • the metal particles and / or textile present in the composite material serve as load and reinforcement for the material.
  • an envelope 31 of an elastomer material different from the first Preferably, the latter has no metal charge and enhances the sealing and electrical insulation of the jacket.
  • This elastomeric envelope may advantageously comprise pigments which dye it in a manner adapted to its environment, such as paving or a grassed surface, etc.
  • the material in particular the base 3 and the branches 11 and 13 in their widest part (or in the part facing the web of the rail), has longitudinal recesses 25, 27 and 29.
  • the dimensions and many of these are calculated to suitably adjust the elasticity and strength of the various parts of the jacket depending on the technical requirements, such as the loads and speeds of passage of railway vehicles.
  • the figure 2 shows an alternative embodiment of the jacket of the invention applied in particular to a Vignole type channel, rather used for the movement of trains.
  • the jacket 100 of the invention and the rail 7 are distinguished.
  • the jacket consists of an elastomer material preferably produced according to a profile conforming to the overall shape of a U and in one piece.
  • the base 103 of the U serves as a support for the shoe 5 of the rail 7. It transmits the elastic force of the rails 7 to the rigid support.
  • the branches 111 and 113 of the U 100 fit on their inside generally the profile of the rail 7. Their outer side each has a shoulder 115 and 119. Each shoulder is arranged such that it has a surface facing the opposite end.
  • the branches 111 and 113 thus hold the rail in its housing.
  • the branches 111 and 113 elastically take up the transverse forces as the ballast of a conventional line. They also dampen vibrations when passing rail vehicles, reducing the noise nuisance associated with train traffic.
  • the branches 111 and 113 extend essentially to the foot of the rail head 7 and provide an inclined upper surface 123 and 124 which generates sufficient clearance for the railway vehicle wheels and prevents fouling of the rail. the way.
  • the upper surface of the rigid support (not shown) will advantageously at least partially marry the same inclination as that of the upper surfaces of the jacket branches.
  • the jacket of the invention is made of an elastomeric material provided with recesses The number of recesses and the dimensions thereof are calculated so as to adapt the static and dynamic stiffness of the track as a function of the loads carried by the rail and the desired acoustic and vibratory performance.
  • the figure 3 shows another variant of jacket which applies in particular to a Vignole type of channel, in particular intended to be embedded in a concrete slab. It differs from the embodiment represented in figure 2 by the different finish of the upper ends of the branches of the jacket.
  • the figure 3 shows the jacket 200 and the rail 7 in cross section.
  • the jacket 200 consists of an elastomeric material preferably produced in a profile conforming to the overall shape of a U and in one piece.
  • the base 203 of the U serves as support for the shoe 5 of the rail 7. It transmits the elastic force of the rails 7 to the rigid support.
  • the branches 211 and 213 of the U 200 conform to their inside generally the profile of the rail 7. Their outer side each has a shoulder 215 and 219.
  • Each shoulder is arranged in such a way that the vector representative of the upper surface of the shoulder has a component facing the end opposite the base 203 of the U 200.
  • the branches 211 and 213 and hold the rail in its housing.
  • the branches 211 and 213 elastically take up the transverse forces as the ballast of a conventional line. They also dampen vibrations when passing rail vehicles, reducing the noise nuisance associated with train traffic.
  • the end 212 of the branch 211 extends approximately up to the height of the ridge of the rail head 7.
  • the other branch 213 of the jacket 200 forms a clearance 214 at the bead 8 of the rail 7, which allows the passage of the wheel of the railway vehicle.
  • the concrete of the slab in which is embedded the rail will come to the height of the branches 211 and 213.
  • Suitable lengths of jackets of the invention can be "strung" on a rail section by spreading the branches of the U in order to allow the engagement of the rail shoe in its slot provided in the jacket or sliding on the rail from one end thereof. It is also possible to produce the jackets on site, directly on the sections of rails. The sections of rail thus wrapped can then be positioned according to the technical requirements concerning the gauge and the inclination of the track and the support or the concrete slab can be cast. It is thus possible to prepare factory prefabricated modules to be assembled on site or to place the coated rails and pour the concrete on site.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Road Paving Structures (AREA)
EP13183038.2A 2013-09-04 2013-09-04 Ummantelung für Schienenfahrzeugsschienen Withdrawn EP2845951A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13183038.2A EP2845951A1 (de) 2013-09-04 2013-09-04 Ummantelung für Schienenfahrzeugsschienen
PCT/EP2014/068881 WO2015032879A1 (fr) 2013-09-04 2014-09-04 Jaquette pour rail destine aux vehicules ferroviaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13183038.2A EP2845951A1 (de) 2013-09-04 2013-09-04 Ummantelung für Schienenfahrzeugsschienen

Publications (1)

Publication Number Publication Date
EP2845951A1 true EP2845951A1 (de) 2015-03-11

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ID=49115406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13183038.2A Withdrawn EP2845951A1 (de) 2013-09-04 2013-09-04 Ummantelung für Schienenfahrzeugsschienen

Country Status (2)

Country Link
EP (1) EP2845951A1 (de)
WO (1) WO2015032879A1 (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345388A1 (de) 1983-12-15 1985-06-27 Phoenix Ag, 2100 Hamburg Elastisches stuetzlager fuer schienen von strassenbahnen
EP0308876A1 (de) * 1987-09-25 1989-03-29 Getzner-Chemie Gesellschaft m.b.H. Einrichtung zur elastischen Lagerung von Rillenschienen
DE4004208A1 (de) 1990-02-12 1991-08-14 Chem Fab Biebrich Vorm Seck & Schalldaemmvorrichtung an strassenbahnschienen
DE4344815A1 (de) 1992-12-30 1994-07-07 Umb Trading Ltd Vorrichtung zur Reduktion von Körper- und Luftschall an Schienen
WO1995030796A1 (de) 1994-05-05 1995-11-16 Phoenix Aktiengesellschaft Schienenanordnung
EP0854234A1 (de) 1997-01-16 1998-07-22 Stephane Dirven Schalldämmvorrichtung
US20040221532A1 (en) * 2003-05-05 2004-11-11 Tom Shillington Prefabricated concrete support mechanism for a railroad track with integral rubber boot and method of manufacture
WO2006032684A1 (fr) 2004-09-21 2006-03-30 Feronia S.A. Procédé d'enrobage d'un rail pour véhicule ferroviaire.
WO2008087027A1 (de) * 2007-01-17 2008-07-24 Edilon Sedra Gmbh Ummantelte bahnschiene
WO2008138913A1 (en) 2007-05-11 2008-11-20 Feronia S.A. Prefabricated module for a railway and method for manufacturing this module

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345388A1 (de) 1983-12-15 1985-06-27 Phoenix Ag, 2100 Hamburg Elastisches stuetzlager fuer schienen von strassenbahnen
EP0308876A1 (de) * 1987-09-25 1989-03-29 Getzner-Chemie Gesellschaft m.b.H. Einrichtung zur elastischen Lagerung von Rillenschienen
DE4004208A1 (de) 1990-02-12 1991-08-14 Chem Fab Biebrich Vorm Seck & Schalldaemmvorrichtung an strassenbahnschienen
DE4344815A1 (de) 1992-12-30 1994-07-07 Umb Trading Ltd Vorrichtung zur Reduktion von Körper- und Luftschall an Schienen
WO1995030796A1 (de) 1994-05-05 1995-11-16 Phoenix Aktiengesellschaft Schienenanordnung
EP0854234A1 (de) 1997-01-16 1998-07-22 Stephane Dirven Schalldämmvorrichtung
US20040221532A1 (en) * 2003-05-05 2004-11-11 Tom Shillington Prefabricated concrete support mechanism for a railroad track with integral rubber boot and method of manufacture
WO2006032684A1 (fr) 2004-09-21 2006-03-30 Feronia S.A. Procédé d'enrobage d'un rail pour véhicule ferroviaire.
WO2008087027A1 (de) * 2007-01-17 2008-07-24 Edilon Sedra Gmbh Ummantelte bahnschiene
WO2008138913A1 (en) 2007-05-11 2008-11-20 Feronia S.A. Prefabricated module for a railway and method for manufacturing this module

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