EP2314768B1 - Rail bridge dampening for reducing noise on railway tracks - Google Patents

Rail bridge dampening for reducing noise on railway tracks Download PDF

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Publication number
EP2314768B1
EP2314768B1 EP09173760.1A EP09173760A EP2314768B1 EP 2314768 B1 EP2314768 B1 EP 2314768B1 EP 09173760 A EP09173760 A EP 09173760A EP 2314768 B1 EP2314768 B1 EP 2314768B1
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EP
European Patent Office
Prior art keywords
profile element
rail
recess
front surface
web
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.)
Not-in-force
Application number
EP09173760.1A
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German (de)
French (fr)
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EP2314768A1 (en
Inventor
Winfried BÖSTERLING
Michael Dr. Harraß
Jörg Happe
Dirk VORDERBRÜCK
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Vossloh Werke GmbH
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Vossloh Werke GmbH
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 Vossloh Werke GmbH filed Critical Vossloh Werke GmbH
Priority to EP09173760.1A priority Critical patent/EP2314768B1/en
Priority to ES09173760.1T priority patent/ES2437145T3/en
Priority to PCT/EP2010/065962 priority patent/WO2011048209A1/en
Priority to US13/503,419 priority patent/US8763924B2/en
Priority to CN201080059255.5A priority patent/CN102725449B/en
Priority to EP10776960A priority patent/EP2491178A1/en
Publication of EP2314768A1 publication Critical patent/EP2314768A1/en
Application granted granted Critical
Publication of EP2314768B1 publication Critical patent/EP2314768B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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 invention relates to a profile element for damping sound vibrations on railway tracks and the use of a special profile element for attachment to the web of a rail for noise reduction in railway tracks.
  • a damping means for sound vibrations on rails which provides damping means which are glued to both sides of the rail at the rail web.
  • the plastic material used for the damping elements is subjected to shear and absorbed by frictional energy, the vibration energy in the rails.
  • hematite and magnetite particles are preferably introduced into the thermoplastic material.
  • a metal clamp can be used which presses the arranged on both sides of the rail web damping elements elastically against the rail web.
  • the noise damping system after the WO93 / 16230 A1 includes profile elements on both sides of a stock rail.
  • the vibrations of the rail should not be damped, but the damping element is spaced from the rail to arrange in order not to swing itself and only to absorb the sound vibrations.
  • the profile element is brought to the rail by means of an elastic clamp. Between the profile element and the rail are individual, strip-shaped spacers, which serve the vibration damping.
  • the assembly of profile element and spacer assembly is partially positioned without the provision of an adhesive layer on the rail web.
  • a recess is provided for the positive engagement of an elastic fixing element for fixing the profile element against the rail track is designed.
  • the profile element after the WO93 / 16230 A1 represents the closest prior art.
  • the present invention seeks to provide an improved rail damping for noise reduction in railway tracks, which can be easily reused when the corresponding track section is dismantled.
  • a profile element for damping sound vibrations on railway rails with the features of claim 1.
  • the rail for a railway track comprising such a profile element is described by the features of claim 7.
  • the invention also relates to the use of a specially designed profile element for attachment to the web of a rail for noise reduction in railway tracks.
  • the profile element according to the invention for damping sound vibrations on railway tracks has a first main surface, which is designed and dimensioned to be attachable as a contact surface without the provision of an adhesive layer on the rail web.
  • the profile element further comprises at least one recess on a front surface which is opposite to the contact surface, wherein the at least one recess in the front surface is designed for the positive engagement of an elastic fixing element for fixing the profile element against the rail web.
  • the profile element comprises at least one broadening in the region of the front surface, which is arranged in the mounting position in the lower region of the front surface.
  • the profile element has a designed as a contact surface and dimensioned first major surface
  • the Profile element without the provision of an adhesive layer or even without the provision of a leveling layer are mounted directly on the rail web. It is important to ensure that the rail profiles have relatively high manufacturing tolerances, so that in the mounting position of the rail web and rail facing the first main surface targeted besides the contact surface also may have areas that may be spaced to accommodate manufacturing tolerances of the railroad track from the railroad track. Because of the specific design and dimensioning of the first main surface as a contact surface on the rail web no adhesive layer to be provided between profile element and rail web is required, the profile element can be easily disassembled and reused elsewhere. For fixing the profile element on the rail web, a mechanical retaining element may be provided instead of an adhesive layer.
  • the profile element is also shaped so that at least one broadening is provided in the region of the front surface, which is arranged in the mounting position in the lower region of the front surface. In other words, the profile element is widened where it extends into the region of the rail foot. Due to the widening of the profile element towards the rail foot, the total mass of the profile element is increased, which improves the sound absorption properties. In addition, the damping is improved in the vertical direction.
  • broadening of the profile element is meant that increases the strength of the profile element in cross section perpendicular to the longitudinal extent of the profile element, wherein the Longitudinal extent of the profile element corresponds to the longitudinal extent of the railroad track, is attached to the mounting element in the profile position.
  • the profile element further comprises at least one, preferably two recesses in the region of the widening, which expose at least partially in the mounting position the rail foot for attachment of a rail fastening. Since the broadening is according to the invention in the lower region of the front surface of the profile element, this extends far into the region of the rail foot, so that, depending on the geometry of the widening, not enough space for a tension clamp can be present, which rests on the rail and tensions it against the threshold below. Alternatively, however, the profile element may also be shorter, i. be made with a lesser length, so that there is no conflict with the tension clamp. By providing recesses corresponding to the usual distance of the thresholds to each other, this problem can be solved and despite the provision of an increased mass for improved sound insulation, the attachment of a rail fastening in a conventional manner.
  • the rail according to the invention for a railway track accordingly comprises such a profile element and is further characterized in that the elastic fixing element is a foot clamp which engages around the rail on one side of the rail and on the other side of the rail in one of the at least one recess of the profile element positively engages.
  • the elastic fixing element is a foot clamp which engages around the rail on one side of the rail and on the other side of the rail in one of the at least one recess of the profile element positively engages.
  • a profile element may further be used, with at least one layer of a fabric having warp wires and weft wires and pores formed between the warp wires and weft wires form elevations and / or depressions extending through the textile structure perpendicular to the surface of the fabric, which achieve a significant improvement of the acoustic absorption property, as a much longer way for the sound and also an air cushion is formed, which increases the boundary layer on the tissue , The portion of air that forms the boundary layer has a higher viscosity than the ambient air, thereby increasing the friction for the sound penetrating the boundary layer.
  • the mass available for sound absorption can be increased and the absorption or dissipation of the sound can be further improved by providing a suitable surface structure without any appreciable further increase in mass due to a different physical mode of action.
  • the profile element comprises rail-side, i. in the region of the first main surface, and preferably in the lower region of the first main surface, a second recess.
  • This second recess is suitable as a free space for cable entry.
  • the at least one recess of the profile element on the front surface is dimensioned so that it receives only a single elastic fixing element.
  • the advantage of this measure is that in this way an exact alignment in the longitudinal direction of the profile element or the railroad track can be achieved.
  • the elastic fixing element engages positively in the at least one recess and the recess is additionally dimensioned so that it can accommodate only an elastic fixing element.
  • the recess can be so be designed that this is a vertically arranged in the mounting direction of the groove. In this way, an offset of the profile elements in the longitudinal direction can be prevented.
  • the profile element of a thermoplastic or elastomeric plastic embedded therein preferably homogeneously distributed metallic or mineral, i. inorganic particles.
  • the basic geometry of such a profile element can preferably be produced by extrusion and injection molding or other plastic processing methods, but has a relatively high weight, which can improve the desired damping of acoustic vibrations.
  • the profile element is weather-resistant and can easily cling to the rail web due to a certain elasticity of the geometric shape.
  • the profile element may consist of a thermoplastic or elastomer, preferably of a polyolefin such as polypropylene.
  • the profile element is designed to have at least one layer of warp and weft fabric and pores formed between the warp and weft wires, the fabric being provided with a plurality of bumps and / or depressions extending substantially perpendicular to its surface , which preferably have a height of at least 0.5mm.
  • the profile element has a length of about 500mm. Unlike conventional profile elements, which usually have a much greater length, the shorter running profile element provides easier installation, an improved seat on the rail bridge in curve radii and when using conventional springs, a higher surface pressure towards the rail web.
  • the profile element has two recesses, which expose the rail, so that in the mounting position of the rail in the region of the recesses in each case a tension clamp for elastic depression of the rail foot can be used on a threshold.
  • At least one profile element is preferably mounted on both sides of the rail, whereby the damping of the sound vibrations can be optimized.
  • these warp and weft wires of the fabric are made of an aluminum alloy, steel, stainless steel, aluminum or other light metal, plastic, ceramic, a copper alloy or a natural fiber.
  • Fig. 1 shows a view of a profile element 10 according to the invention, wherein the profile element is shown from the front side and in a position corresponding to the mounting position on a horizontally laid railroad track.
  • the main extension and thus the longitudinal direction of the profile element 10 extends perpendicular to the plane of the Fig. 1
  • the profile element 10 has a first main surface 12 and one of the first main surface 12 oppositely arranged front surface 14.
  • the illustrated mounting position is the first major surface 12 in substantial areas in contact with the land and root of a conventional geometry rail such that a substantial portion of the first major surface simultaneously forms a locating surface 16 which is in contact with the associated railway rail in the mounting position.
  • the radii of the first major surface are adapted to the geometry of the rail.
  • first region 18 and the second region 20 can each have a larger radius than corresponds to the associated rail geometry in the web region.
  • a third area 22 is provided in which a milling of the profile element 10 is located in order to ensure full contact with the web of the rail in the area of the contact surface 16 in the case of manufacturing tolerances of the associated rail.
  • the respective extent of the areas 18, 20 and 22 is shown in the representation in Fig. 3 can be seen where these areas do not abut the rail.
  • the profile element On the front surface 14, the profile element on the one hand has a longitudinally extending, preferably continuous Recess 24, which, as shown in the schematic representation of a retaining clip in Fig. 3 will be shown, for the positive engagement of an elastic fixing element is used to press the profile element preferably resiliently against the rail web.
  • the profile element 10 is provided in the region of the front surface 14 with a widening 26, which is arranged in the lower region of the front surface 14, wherein the term "bottom" refers to the mounting position in a horizontally arranged rail track. Due to the broadening 26, the mass of the profile element 10 is increased, whereby the damping function of sound vibrations improves. In this case, due to the special arrangement of the widening 26 in the lower region of the front surface, the damping in the vertical direction is increased and the additional material is arranged in a region where this least disturbs, namely in the region of the rail foot during assembly of the profile element. Finally, a recess 50 for receiving eg cable can be arranged on the rail foot.
  • the concave radius 60 provided at the upper end is tuned to the convex radius 61 in the region of the processing 26 in such a way that they face each other in opposite directions laid profile elements with little clearance can be stacked on each other, whereby the transport volume can be reduced and the storage is simplified.
  • Fig. 2 additionally shows vertically extending grooves 30, which extends from the side of the front surface 14 into the broadening 26 and from the underside of the profile element to the recess 24.
  • the grooves 30 serve to receive suitable elastic fixing elements, for example metal clamps, such that they extend into the grooves 30 and, with a corresponding dimensioning of the width of the grooves in coordination with the width of the elastic fixing element, prevent a longitudinal offset of the profile element.
  • suitable elastic fixing elements for example metal clamps
  • a total of four grooves per profile element are provided so that when mounting each one profile element on both sides of the rail web, the mounting brackets can be offset from each other.
  • Fig. 3 shows a conventional rail 32 with rail head 34, rail web 36 and 38 rail foot
  • profile element 10 is in Fig. 3 arranged in the mounting position on the rail web 36, wherein the profile element 10 rests in the region of the contact surface 16 on the rail web and rail foot. In the region 22, the profile element 10 does not rest on the rail to accommodate manufacturing tolerances, in particular in the region of the radii between rail head and rail web, as well as between rail web and rail foot.
  • Fig. 1 owns the profile element after Fig. 3 no second recess for cable entry.
  • the profile element is located directly on the rail, which is to be understood by the term "direct" that between the profile element and the stock rail 32 is no compensation layer or adhesive layer. Nevertheless, a safe investment and a suitable To ensure contact pressure between the profile element and stock rail, at least two retaining clips 40 are provided for each profile element, which engage around the rail foot in the area 40a on the side facing away from the profile element of the rail, run under the rail and guided on the profile element facing the side of the rail around and preferably an in Fig. 3 not shown through groove and press with the area 40b in the recess 24 of the profile element. In this way, the profile element 10 is fixed without the use of an adhesive layer on the stock rail, wherein after removing the retaining clip 10, the profile element can be easily disassembled from the stock rail and used again elsewhere.
  • a profile element 10 is arranged, but this is preferably arranged on both sides of the rail, wherein the retaining clip in mirror image to the in Fig. 3 shown, exemplary retaining clip is arranged to the further, in Fig. 3 Also not shown profiled element to clamp against the rail web.
  • profile element may be made of a thermoplastic or elastomeric plastic, in the metallic or mineral, such as inorganic particles are embedded, which extrude with the plastic material, injection molding or can be produced with typical plastic processing methods and have the function to the mass of the profile element increase.
  • a multilayer structure wherein a structure can be provided, as in DE 20 2008 014 701 U1 which describes that on a suitable absorbent material at least one layer of a fabric with warp wires and weft wires can be provided, wherein between the warp wires and weft wires formed pores are present and the tissue is provided with a plurality of substantially perpendicular to its surface extending elevations and / or depressions, which have a height of at least 0.5mm.
  • a corresponding tissue layer can be arranged both on the first main surface 12 and front surface 14 of the profile element 10.
  • a layer structure consisting of thermoplastic material with metal particles and / or mineral particles can be combined with a corresponding layer of fabric with warp wires and weft wires on the surface layer described layer structure. It is crucial, however, that although the profile element 10 itself may consist of different layers that are laminated together, the profile element but without the use of an adhesive layer on the stock rail can be fastened.

Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft ein Profilelement zur Dämpfung von Schallschwingungen an Eisenbahnschienen sowie die Verwendung eines speziellen Profilelements zur Befestigung an dem Steg einer Schiene zur Schallreduzierung in Eisenbahngleisen.The invention relates to a profile element for damping sound vibrations on railway tracks and the use of a special profile element for attachment to the web of a rail for noise reduction in railway tracks.

Stand der TechnikState of the art

Im Fahrbetrieb von Zügen auf Eisenbahngleisen können hörbare Schwingungen der Schienen auftreten, die insbesondere im Siedlungsbereich oder in Siedlungsnähe unerwünscht sind. Da im Fahrbetrieb auftretende Schwingungen der Schiene häufig an spezifischen Stellen auftreten wie z.B. in engen Kurven oder im Gefällebereich, wurden im Stand der Technik bereits Systeme entwickelt, um Schallschwingungen an Schienen zu dämpfen.When driving trains on railway tracks audible vibrations of the rails may occur, which are undesirable, especially in the settlement area or near settlement. Since vibrations of the rail occurring during driving frequently occur at specific locations, such as e.g. in tight bends or downhill areas, systems have already been developed in the prior art to dampen sound vibrations on rails.

Aus der WO03/085201 A1 ist ein Dämpfungsmittel für Schallschwingungen an Schienen bekannt, der Dämpfungsmittel vorsieht, die an beiden Seiten der Schiene am Schienensteg angeklebt werden. Das für die Dämpfungselemente verwendete Kunststoffmaterial wird auf Schub beansprucht und absorbiert durch Reibungsenergie die Schwingungsenergie in den Schienen.From the WO03 / 085201 A1 is known a damping means for sound vibrations on rails, which provides damping means which are glued to both sides of the rail at the rail web. The plastic material used for the damping elements is subjected to shear and absorbed by frictional energy, the vibration energy in the rails.

Um eine ausreichende Masse zur Absorption von Schallwellen bereitzustellen, werden in den thermoplastischen Kunststoff bevorzugt Hämatit- und Magnetitpartikel eingebracht. Ergänzend zur Verklebung der Dämpfungselemente mit dem Schienensteg kann eine Metallklammer eingesetzt werden, welche die auf beiden Seiten des Schienenstegs angeordneten Dämpfungselemente elastisch gegen den Schienensteg drückt.In order to provide a sufficient mass for absorbing sound waves, hematite and magnetite particles are preferably introduced into the thermoplastic material. In addition to the bonding of the damping elements with the rail web, a metal clamp can be used which presses the arranged on both sides of the rail web damping elements elastically against the rail web.

Eine weitere Lösung zur Vermeidung von Schienenschwingungen ist in der DE-A-1 784 171 beschrieben und sieht im Steg- oder Kopfbereich der Schiene einen Überzug aus einem unter der Wirkung von Schwingungen keine nennenswerte Formänderung erleidenden Kunststoff vor, auf den ein oder mehrere Metalldeckbleche befestigt sind. Der Kunststoffüberzug ist dabei aus einem 2-Komponentenmaterial auf der Basis eines gefüllten Kunstharzes vorgesehen und die auf den Kunststoffüberzügen aufgebrachten Metallbleche werden entweder durch Aufkleben oder durch Eindrücken der Bleche auf den im plastischen Zustand befindlichen Kunststoff befestigt.Another solution to avoid rail vibration is in the DE-A-1 784 171 describes and provides in the web or head region of the rail a coating of a under the action of vibrations no appreciable change in shape suffering plastic on which one or more metal cover sheets are attached. The plastic coating is provided from a 2-component material based on a filled synthetic resin and applied to the plastic coatings metal sheets are attached either by gluing or by pressing the sheets on the plastic in the plastic state.

Das Geräuschdämpfungssystem nach der WO93/16230 A1 umfasst Profilelemente auf beiden Seiten einer Backenschiene. Dabei sollen nicht die Vibrationen der Schiene gedämpft werden, sondern das Dämpfungselement ist von der Schiene beabstandet anzuordnen, um selbst nicht zu schwingen und lediglich die Schallschwingungen zu absorbieren. Das Profilelement wird mit Hilfe einer elastischen Klemme an der Schiene abgebracht. Zwischen dem Profilelement und der Schiene befinden sich einzelne, streifenförmige Abstandshalter, welche der Vibrationsdämpfung dienen. Die aus Profilelement und Abstandshalter bestehende Baueinheit wird bereichsweise ohne das Vorsehen einer Klebstoffschicht am Schienensteg positioniert. Auf der der Schiene abgewandten Seiten des Profilelements ist eine Ausnehmung vorgesehen, die zum formschlüssigen Eingreifen eines elastischen Fixierelements für das Fixieren des Profilelements gegen den Schienenstrang ausgelegt ist. Das Profilelement nach der WO93/16230 A1 stellt den nächstkommenden Stand der Technik dar.The noise damping system after the WO93 / 16230 A1 includes profile elements on both sides of a stock rail. In this case, the vibrations of the rail should not be damped, but the damping element is spaced from the rail to arrange in order not to swing itself and only to absorb the sound vibrations. The profile element is brought to the rail by means of an elastic clamp. Between the profile element and the rail are individual, strip-shaped spacers, which serve the vibration damping. The assembly of profile element and spacer assembly is partially positioned without the provision of an adhesive layer on the rail web. On the side facing away from the rail of the profile element, a recess is provided for the positive engagement of an elastic fixing element for fixing the profile element against the rail track is designed. The profile element after the WO93 / 16230 A1 represents the closest prior art.

Darstellung der ErfindungPresentation of the invention

Ausgehend vom Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine verbesserte Schienenstegdämpfung zur Schallreduzierung in Eisenbahngleisen vorzuschlagen, die einfach wiederverwendet werden kann, wenn der entsprechende Gleisabschnitt demontiert wird.Based on the prior art, the present invention seeks to provide an improved rail damping for noise reduction in railway tracks, which can be easily reused when the corresponding track section is dismantled.

Diese Aufgabe wird durch ein Profilelement zur Dämpfung von Schallschwingungen an Eisenbahnschienen mit den Merkmalen des Anspruchs 1 gelöst. Die Schiene für ein Eisenbahngleis umfassend ein derartiges Profilelement wird durch die Merkmale des Anspruchs 7 beschrieben. Schließlich betrifft die Erfindung auch die Verwendung eines speziell gestalteten Profilelements zur Befestigung an dem Steg einer Schiene zur Schallreduzierung in Eisenbahngleisen.This object is achieved by a profile element for damping sound vibrations on railway rails with the features of claim 1. The rail for a railway track comprising such a profile element is described by the features of claim 7. Finally, the invention also relates to the use of a specially designed profile element for attachment to the web of a rail for noise reduction in railway tracks.

Das erfindungsgemäße Profilelement zur Dämpfung von Schallschwingungen an Eisenbahnschienen weist eine erste Hauptfläche auf, die gestaltet und dimensioniert ist, um als Anlagefläche ohne das Vorsehen einer Klebstoffschicht am Schienensteg anbringbar zu sein. Das Profilelement umfasst weiterhin mindestens eine Ausnehmung auf einer Frontfläche, die der Anlagefläche entgegengesetzt liegt, wobei die mindestens eine Ausnehmung in der Frontfläche zum formschlüssigen Eingreifen eines elastischen Fixierelements für das Fixieren des Profilelements gegen den Schienensteg ausgelegt ist. Weiterhin umfasst das Profilelement mindestens eine Verbreiterung im Bereich der Frontfläche, die in Montageposition im unteren Bereich der Frontfläche angeordnet ist.The profile element according to the invention for damping sound vibrations on railway tracks has a first main surface, which is designed and dimensioned to be attachable as a contact surface without the provision of an adhesive layer on the rail web. The profile element further comprises at least one recess on a front surface which is opposite to the contact surface, wherein the at least one recess in the front surface is designed for the positive engagement of an elastic fixing element for fixing the profile element against the rail web. Furthermore, the profile element comprises at least one broadening in the region of the front surface, which is arranged in the mounting position in the lower region of the front surface.

Indem das Profilelement eine als Anlagefläche gestaltete und dimensionierte erste Hauptfläche aufweist, kann das Profilelement ohne das Vorsehen einer Haftschicht oder aber auch ohne das Vorsehen einer Ausgleichsschicht direkt am Schienensteg angebracht werden. Dabei ist darauf zu achten, dass die Schienenprofile relativ hohe Fertigungstoleranzen aufweisen, so dass die in Montageposition dem Schienensteg und Schienenfuß zugewandte erste Hauptfläche gezielt neben der Anlagefläche auch Bereiche aufweisen kann, die zur Aufnahme von Fertigungstoleranzen der Eisenbahnschiene von der Eisenbahnschiene beabstandet sein können. Da durch die spezifische Gestaltung und Dimensionierung der ersten Hauptfläche als Anlagefläche am Schienensteg keine zwischen Profilelement und Schienensteg vorzusehende Haftschicht erforderlich ist, lässt sich das Profilelement einfach demontieren und an anderer Stelle wieder verwenden. Zur Fixierung des Profilelements am Schienensteg kann anstelle einer Klebstoffschicht ein mechanisches Halteelement vorgesehen sein. Zum formschlüssigen Eingreifen eines elastischen Fixierelements für das Fixieren des Profilelements gegen den Schienensteg ist daher erfindungsgemäß mindestens eine Ausnehmung auf einer Frontfläche, die der Anlagefläche entgegengesetzt liegt, vorgesehen. Die Ausnehmung dient dazu, ein elastisches Fixierelement aufzunehmen, mit dem das Profilelement gegen den Schienensteg gedrückt und insbesondere verspannt werden kann. Erfindungsgemäß ist das Profilelement zudem so geformt, dass mindestens eine Verbreiterung im Bereich der Frontfläche vorgesehen ist, die in Montageposition im unteren Bereich der Frontfläche angeordnet ist. Mit anderen Worten ist das Profilelement dort verbreitert, wo es sich in den Bereich des Schienenfußes erstreckt. Durch die Verbreiterung des Profilelements zum Schienenfuß hin wird die Gesamtmasse des Profilelements erhöht, wodurch sich die Schallabsorptionseigenschaften verbessern. Darüber hinaus wird die Dämpfung in vertikaler Richtung verbessert. Unter "Verbreiterung des Profilelements" wird verstanden, dass sich die Stärke des Profilelements im Querschnitt senkrecht zur Längserstreckung des Profilelements vergrößert, wobei die Längserstreckung des Profilelements der Längserstreckung der Eisenbahnschiene entspricht, an der in Montageposition das Profilelement angebracht ist.By the profile element has a designed as a contact surface and dimensioned first major surface, the Profile element without the provision of an adhesive layer or even without the provision of a leveling layer are mounted directly on the rail web. It is important to ensure that the rail profiles have relatively high manufacturing tolerances, so that in the mounting position of the rail web and rail facing the first main surface targeted besides the contact surface also may have areas that may be spaced to accommodate manufacturing tolerances of the railroad track from the railroad track. Because of the specific design and dimensioning of the first main surface as a contact surface on the rail web no adhesive layer to be provided between profile element and rail web is required, the profile element can be easily disassembled and reused elsewhere. For fixing the profile element on the rail web, a mechanical retaining element may be provided instead of an adhesive layer. For positive engagement of an elastic fixing element for fixing the profile element against the rail web is therefore according to the invention at least one recess on a front surface which is opposite to the contact surface provided. The recess serves to receive an elastic fixing element, with which the profile element can be pressed against the rail web and in particular clamped. According to the invention, the profile element is also shaped so that at least one broadening is provided in the region of the front surface, which is arranged in the mounting position in the lower region of the front surface. In other words, the profile element is widened where it extends into the region of the rail foot. Due to the widening of the profile element towards the rail foot, the total mass of the profile element is increased, which improves the sound absorption properties. In addition, the damping is improved in the vertical direction. By "broadening of the profile element" is meant that increases the strength of the profile element in cross section perpendicular to the longitudinal extent of the profile element, wherein the Longitudinal extent of the profile element corresponds to the longitudinal extent of the railroad track, is attached to the mounting element in the profile position.

Erfindungsgemäß umfasst das Profilelement weiterhin mindestens eine, vorzugsweise zwei Aussparungen im Bereich der Verbreiterung, die in Montageposition den Schienenfuß zur Anbringung einer Schienenbefestigung zumindest bereichsweise freilegen. Da sich die Verbreiterung erfindungsgemäß im unteren Bereich der Frontfläche des Profilelements befindet, erstreckt sich diese weit in den Bereich des Schienenfußes hinein, so dass, je nach Geometrie der Verbreiterung, nicht mehr ausreichend Platz für eine Spannklemme vorhanden sein kann, die auf dem Schienenfuß aufliegt und diesen gegen die darunter angeordnete Schwelle spannt. Alternativ kann das Profilelement aber auch kürzer, d.h. mit geringerer Länge, ausgeführt sein, so dass es zu keinem Konflikt mit der Spannklemme kommt. Durch das Vorsehen von Aussparungen entsprechend dem üblichen Abstand der Schwellen zueinander lässt sich dieses Problem lösen und trotz des Bereitstellens einer erhöhten Masse für den verbesserten Schallschutz die Anbringung einer Schienenbefestigung in herkömmlicher Weise durchführen.According to the invention the profile element further comprises at least one, preferably two recesses in the region of the widening, which expose at least partially in the mounting position the rail foot for attachment of a rail fastening. Since the broadening is according to the invention in the lower region of the front surface of the profile element, this extends far into the region of the rail foot, so that, depending on the geometry of the widening, not enough space for a tension clamp can be present, which rests on the rail and tensions it against the threshold below. Alternatively, however, the profile element may also be shorter, i. be made with a lesser length, so that there is no conflict with the tension clamp. By providing recesses corresponding to the usual distance of the thresholds to each other, this problem can be solved and despite the provision of an increased mass for improved sound insulation, the attachment of a rail fastening in a conventional manner.

Die erfindungsgemäße Schiene für ein Eisenbahngleis umfasst demgemäß ein derartiges Profilelement und ist weiterhin dadurch gekennzeichnet, dass das elastische Fixierelement eine Fußklammer ist, die auf der einen Seite der Schiene den Schienenfuß umgreift und auf der anderen Seite der Schiene in eine der mindestens einen Ausnehmung des Profilelements formschlüssig eingreift.The rail according to the invention for a railway track accordingly comprises such a profile element and is further characterized in that the elastic fixing element is a foot clamp which engages around the rail on one side of the rail and on the other side of the rail in one of the at least one recess of the profile element positively engages.

In dem Bestreben, eine möglichst wirkungsvolle Dämpfung der Schallschwingungen zu ermöglichen, kann weiterhin ein Profilelement verwendet werden, mit wenigstens einer Schicht eines Gewebes mit Kettdrähten und Schussdrähten und zwischen den Kettdrähten und Schussdrähten gebildeten Poren, wodurch sich durch die textile Struktur senkrecht zur Oberfläche des Gewebes erstreckende Erhebungen und/oder Vertiefungen bilden, die eine erhebliche Verbesserung der akustischen Absorptionseigenschaft erzielen, da sich für den Schall ein erheblich längerer Weg ergibt und zudem ein Luftpolster gebildet wird, welches die Grenzschicht am Gewebe vergrößert. Derjenige Anteil an Luft, der die Grenzschicht bildet, besitzt eine höhere Viskosität als die Umgebungsluft, wodurch die Reibung für den die Grenzschicht durchdringenden Schall erhöht wird. Auf diese Weise lässt sich durch eine Kombination der erfindungsgemäßen Formgebung des Profilelements die zur Schallabsorption zur Verfügung stehende Masse erhöhen und durch das Vorsehen einer geeigneten Oberflächenstruktur ohne eine nennenswerte weitere Erhöhung der Masse aufgrund eines unterschiedlichen physikalischen Wirkprinzips die Absorption bzw. Dissipation des Schalls weiter verbessern.In an effort to enable the most effective possible damping of the sound vibrations, a profile element may further be used, with at least one layer of a fabric having warp wires and weft wires and pores formed between the warp wires and weft wires form elevations and / or depressions extending through the textile structure perpendicular to the surface of the fabric, which achieve a significant improvement of the acoustic absorption property, as a much longer way for the sound and also an air cushion is formed, which increases the boundary layer on the tissue , The portion of air that forms the boundary layer has a higher viscosity than the ambient air, thereby increasing the friction for the sound penetrating the boundary layer. In this way, by combining the shaping of the profile element according to the invention, the mass available for sound absorption can be increased and the absorption or dissipation of the sound can be further improved by providing a suitable surface structure without any appreciable further increase in mass due to a different physical mode of action.

Bevorzugte Ausführungsformen der Erfindung folgen aus den übrigen Ansprüchen.Preferred embodiments of the invention follow from the remaining claims.

Vorzugsweise umfasst das Profilelement schienenlagenseitig, d.h. im Bereich der ersten Hauptfläche, und vorzugsweise im unteren Bereich der ersten Hauptfläche eine zweite Ausnehmung. Diese zweite Ausnehmung ist als Freiraum zur Kabeldurchführung geeignet.Preferably, the profile element comprises rail-side, i. in the region of the first main surface, and preferably in the lower region of the first main surface, a second recess. This second recess is suitable as a free space for cable entry.

Vorzugsweise ist die mindestens eine Ausnehmung des Profilelements auf der Frontfläche so dimensioniert, dass diese nur ein einzelnes elastisches Fixierelement aufnimmt. Der Vorteil dieser Maßnahme besteht darin, dass sich auf diese Weise eine exakte Ausrichtung in Längsrichtung des Profilelements bzw. der Eisenbahnschiene erzielen lässt. Das elastische Fixierelement greift formschlüssig in die mindestens eine Ausnehmung ein und die Ausnehmung ist zusätzlich so dimensioniert, dass diese nur ein elastisches Fixierelement aufnehmen kann. Die Ausnehmung kann dabei so gestaltet sein, dass diese eine in Montagerichtung vertikal angeordnete Nut ist. Auf diese Weise lässt sich ein Versatz der Profilelemente in Längsrichtung verhindern.Preferably, the at least one recess of the profile element on the front surface is dimensioned so that it receives only a single elastic fixing element. The advantage of this measure is that in this way an exact alignment in the longitudinal direction of the profile element or the railroad track can be achieved. The elastic fixing element engages positively in the at least one recess and the recess is additionally dimensioned so that it can accommodate only an elastic fixing element. The recess can be so be designed that this is a vertically arranged in the mounting direction of the groove. In this way, an offset of the profile elements in the longitudinal direction can be prevented.

Es hat sich als vorteilhaft erwiesen, wenn das Profilelement aus einem thermoplastischen oder elastomeren Kunststoff mit darin eingebetteten, vorzugsweise homogen verteilten metallischen oder mineralischen, d.h. anorganischen Partikeln besteht. Die Grundgeometrie eines derartigen Profilelements lässt sich vorzugsweise durch Extrusions- und Spritzgießverfahren oder andere Kunststoff verarbeitende Verfahren herstellen, weist jedoch ein relativ hohes Gewicht auf, wodurch sich die gewünschte Dämpfung von akustischen Schwingungen verbessern lässt. Gleichzeitig ist das Profilelement witterungsbeständig und kann sich aufgrund einer gewissen Elastizität der geometrischen Form leicht an den Schienensteg anschmiegen. Das Profilelement kann aus einem Thermoplast oder Elastomer, vorzugsweise aus einem Polyolefin wie Polypropylen bestehen.It has proven to be advantageous if the profile element of a thermoplastic or elastomeric plastic embedded therein, preferably homogeneously distributed metallic or mineral, i. inorganic particles. The basic geometry of such a profile element can preferably be produced by extrusion and injection molding or other plastic processing methods, but has a relatively high weight, which can improve the desired damping of acoustic vibrations. At the same time, the profile element is weather-resistant and can easily cling to the rail web due to a certain elasticity of the geometric shape. The profile element may consist of a thermoplastic or elastomer, preferably of a polyolefin such as polypropylene.

Alternativ ist das Profilelement so gestaltet, dass es mindestens eine Schicht eines Gewebes aus Kettdrähten und Schussdrähten und zwischen den Kettdrähten und Schussdrähten gebildeten Poren aufweist, wobei das Gewebe mit einer Vielzahl von sich im Wesentlichen senkrecht zu seiner Oberfläche erstreckenden Erhebungen und/oder Vertiefungen versehen ist, welche vorzugsweise eine Höhe von wenigstens 0.5mm aufweisen. Der Vorteil eines derartigen Gewebes insbesondere im Bereich der Frontfläche wurde bereits voranstehend erläutert und dient einer verbesserten Akustikdämmung.Alternatively, the profile element is designed to have at least one layer of warp and weft fabric and pores formed between the warp and weft wires, the fabric being provided with a plurality of bumps and / or depressions extending substantially perpendicular to its surface , which preferably have a height of at least 0.5mm. The advantage of such a fabric, in particular in the area of the front surface, has already been explained above and serves for improved acoustic insulation.

Vorzugsweise besitzt das Profilelement eine Länge von etwa 500mm. Anders als herkömmliche Profilelemente, die in der Regel eine deutlich größere Länge aufweisen, bietet das kürzer ausgeführte Profilelement eine einfachere Montage, einen verbesserten Sitz am Schienensteg in Kurvenradien und bei Verwendung herkömmlicher Federn eine höhere Flächenpressung zum Schienensteg hin.Preferably, the profile element has a length of about 500mm. Unlike conventional profile elements, which usually have a much greater length, the shorter running profile element provides easier installation, an improved seat on the rail bridge in curve radii and when using conventional springs, a higher surface pressure towards the rail web.

Optional weist das Profilelement zwei Aussparungen auf, die den Schienenfuß freilegen, so dass in Montageposition der Schiene im Bereich der Aussparungen jeweils eine Spannklemme zum elastischen Niederdrücken des Schienenfußes auf eine Schwelle einsetzbar ist.Optionally, the profile element has two recesses, which expose the rail, so that in the mounting position of the rail in the region of the recesses in each case a tension clamp for elastic depression of the rail foot can be used on a threshold.

Weiterhin wird vorzugsweise auf beiden Seiten der Schiene mindestens ein Profilelement angebracht, wodurch sich die Dämpfung der Schallschwingungen optimieren lässt.Furthermore, at least one profile element is preferably mounted on both sides of the rail, whereby the damping of the sound vibrations can be optimized.

Nach einer bevorzugten Ausführungsform des Profilelements, das wenigstens eine Schicht eines Gewebes von Kettdrähten und Schussdrähten aufweist, bestehen diese Kettdrähte und Schussdrähte des Gewebes aus einer Aluminiumlegierung, Stahl, Edelstahl, Aluminium oder anderem Leichtmetall, Kunststoff, Keramik, einer Kupferlegierung oder einer Naturfaser.According to a preferred embodiment of the profile element, which comprises at least one layer of a fabric of warp wires and weft wires, these warp and weft wires of the fabric are made of an aluminum alloy, steel, stainless steel, aluminum or other light metal, plastic, ceramic, a copper alloy or a natural fiber.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Nachfolgend wird die Erfindung rein beispielhaft anhand einer Ausführungsform beschrieben, wobei

Fig. 1
eine erste Ansicht eines erfindungsgemäßen Profilelements zeigt;
Fig. 2
eine zweite Ansicht des in Fig. 1 dargestellten Profilelements zeigt; und
Fig. 3
schematisch den Schnitt durch eine Eisenbahnschiene mit einem daran angebrachten erfindungsgemäßen Profilelement darstellt.
The invention will be described purely by way of example with reference to an embodiment, wherein
Fig. 1
shows a first view of a profile element according to the invention;
Fig. 2
a second view of the in Fig. 1 shows profile element shown; and
Fig. 3
schematically represents the section through a railroad track with an attached profile element according to the invention.

Wege zur Ausführung der ErfindungWays to carry out the invention

In den nachfolgenden Figuren werden dieselben Bauelemente jeweils mit denselben Referenzziffern bezeichnet.In the following figures, the same components are denoted by the same reference numerals.

Fig. 1 zeigt eine Ansicht eines erfindungsgemäßen Profilelements 10, wobei das Profilelement von der Stirnseite her und in einer Lage entsprechend der Montageposition an einer horizontal verlegten Eisenbahnschiene dargestellt ist. Die Haupterstreckung und damit die Längsrichtung des Profilelements 10 erstreckt sich senkrecht zur Zeichenebene der Fig. 1. Das Profilelement 10 weist eine erste Hauptfläche 12 auf sowie eine der ersten Hauptfläche 12 entgegengesetzt angeordnete Frontfläche 14. In der in Fig. 3 dargestellten Einbauposition ist die erste Hauptfläche 12 in wesentlichen Bereichen in Kontakt mit dem Steg und Fuß einer Schiene üblicher Geometrie, so dass ein wesentlicher Teil der ersten Hauptfläche gleichzeitig eine Anlagefläche 16 bildet, die in Montageposition in Kontakt mit der zugehörigen Eisenbahnschiene ist. Die Radien der ersten Hauptfläche sind an die Geometrie der Schiene angepasst. In Bereichen der ersten Hauptfläche 12 können aber auch gezielt größere Radien vorgesehen sein als dies der zugehörigen Eisenbahnschiene entspricht, um Maßtoleranzen der Schiene ausgleichen zu können. Dabei können insbesondere der erste Bereich 18 sowie zweite Bereich 20 jeweils einen größeren Radius aufweisen als der zugehörigen Schienengeometrie im Stegbereich entspricht. Darüber hinaus ist ein dritter Bereich 22 vorgesehen, in dem sich eine Fräsung des Profilelements 10 befindet, um bei Fertigungstoleranzen der zugehörigen Schiene ein vollflächiges Anliegen an dem Steg der Schiene im Bereich der Anlagefläche 16 sicherzustellen. Die jeweilige Erstreckung der Bereiche 18, 20 und 22 ist aus der Darstellung in Fig. 3 ersichtlich, wo diese Bereiche nicht an der Schiene anliegen. Fig. 1 shows a view of a profile element 10 according to the invention, wherein the profile element is shown from the front side and in a position corresponding to the mounting position on a horizontally laid railroad track. The main extension and thus the longitudinal direction of the profile element 10 extends perpendicular to the plane of the Fig. 1 , The profile element 10 has a first main surface 12 and one of the first main surface 12 oppositely arranged front surface 14. In the in Fig. 3 The illustrated mounting position is the first major surface 12 in substantial areas in contact with the land and root of a conventional geometry rail such that a substantial portion of the first major surface simultaneously forms a locating surface 16 which is in contact with the associated railway rail in the mounting position. The radii of the first major surface are adapted to the geometry of the rail. In areas of the first main surface 12 but also specifically larger radii can be provided as corresponds to the associated railroad track to compensate for dimensional tolerances of the rail can. In this case, in particular the first region 18 and the second region 20 can each have a larger radius than corresponds to the associated rail geometry in the web region. In addition, a third area 22 is provided in which a milling of the profile element 10 is located in order to ensure full contact with the web of the rail in the area of the contact surface 16 in the case of manufacturing tolerances of the associated rail. The respective extent of the areas 18, 20 and 22 is shown in the representation in Fig. 3 can be seen where these areas do not abut the rail.

Auf der Frontfläche 14 weist das Profilelement einerseits eine in Längsrichtung verlaufende, vorzugsweise durchgehende Ausnehmung 24 auf, die, wie anhand der schematischen Darstellung einer Halteklammer in Fig. 3 gezeigt werden wird, zum formschlüssigen Eingreifen eines elastischen Fixierelements dient, um das Profilelement vorzugsweise elastisch gegen den Schienensteg zu drücken.On the front surface 14, the profile element on the one hand has a longitudinally extending, preferably continuous Recess 24, which, as shown in the schematic representation of a retaining clip in Fig. 3 will be shown, for the positive engagement of an elastic fixing element is used to press the profile element preferably resiliently against the rail web.

Aus Fig. 1 ist weiterhin ersichtlich, dass das Profilelement 10 im Bereich der Frontfläche 14 mit einer Verbreiterung 26 versehen ist, die im unteren Bereich der Frontfläche 14 angeordnet ist, wobei der Begriff "unten" sich auf die Montageposition bei einer horizontal angeordneten Eisenbahnschiene bezieht. Durch die Verbreiterung 26 wird die Masse des Profilelements 10 erhöht, wodurch sich die Dämpfungsfunktion von Schallschwingungen verbessert. Dabei wird aufgrund der speziellen Anordnung der Verbreiterung 26 im unteren Bereich der Frontfläche die Dämpfung in vertikaler Richtung erhöht und das zusätzliche Material in einem Bereich angeordnet, wo dieses am wenigsten stört, nämlich im Bereich des Schienenfußes bei der Montage des Profilelements. Schließlich kann am Schienenfuß eine Ausnehmung 50 zur Aufnahme von z.B. Kabel angeordnet werden.Out Fig. 1 Furthermore, it can be seen that the profile element 10 is provided in the region of the front surface 14 with a widening 26, which is arranged in the lower region of the front surface 14, wherein the term "bottom" refers to the mounting position in a horizontally arranged rail track. Due to the broadening 26, the mass of the profile element 10 is increased, whereby the damping function of sound vibrations improves. In this case, due to the special arrangement of the widening 26 in the lower region of the front surface, the damping in the vertical direction is increased and the additional material is arranged in a region where this least disturbs, namely in the region of the rail foot during assembly of the profile element. Finally, a recess 50 for receiving eg cable can be arranged on the rail foot.

Lediglich im Bereich der Befestigungsstelle der Schiene auf den Schwellen, wo in üblicher Weise Spannklemmen zur elastischen Befestigung der Schienen auf Schwellen zum Einsatz kommen, ist die Verbreiterung 26 störend, weshalb mindestens eine Aussparung 28, vorzugsweise an jedem Längsende des Profils eine Aussparung 28 angeordnet ist. Die Geometrie der Aussparung 28 ist am besten aus Fig. 2 ersichtlich, welche jeweils eine Aussparung 28 zeigt, die am jeweiligen Längsende des Profilelements 10 angeordnet ist und sich von der Frontfläche 14 aus in das Material der Verbreiterung 26 hinein erstreckt.Only in the region of the attachment point of the rail on the thresholds, where in the usual way tensioning clamps for elastic attachment of rails on sleepers are used, the widening 26 is disturbing, which is why at least one recess 28, preferably at each longitudinal end of the profile a recess 28 is arranged , The geometry of the recess 28 is best Fig. 2 can be seen, which in each case shows a recess 28 which is arranged at the respective longitudinal end of the profile element 10 and extends from the front surface 14 into the material of the widening 26 inside.

Auf der Frontfläche 14 ist der am oberen Ende vorgesehene, konkave Radius 60 so auf den konvexen Radius 61 im Bereich der Verarbeitung 26 abgestimmt, dass gegenläufig aufeinander gelegte Profilelemente mit nur geringem Freiraum aufeinander gestapelt werden können, wodurch das Transportvolumen verringert werden kann und die Lagerung vereinfacht wird.On the front surface 14, the concave radius 60 provided at the upper end is tuned to the convex radius 61 in the region of the processing 26 in such a way that they face each other in opposite directions laid profile elements with little clearance can be stacked on each other, whereby the transport volume can be reduced and the storage is simplified.

Fig. 2 zeigt zusätzlich in vertikaler Richtung verlaufende Nuten 30, die sich von der Seite der Frontfläche 14 aus in die Verbreiterung 26 hinein und von der Unterseite des Profilelements bis zur Ausnehmung 24 erstreckt. Die Nuten 30 dienen dazu, geeignete elastische Fixierelemente, z.B. Metallklammern so aufzunehmen, dass sich diese in die Nuten 30 hinein erstrecken und bei einer entsprechenden Dimensionierung der Breite der Nuten in Abstimmung mit der Breite des elastischen Fixierelements einen Längsversatz des Profilelements verhindern. Vorzugsweise sind insgesamt vier Nuten pro Profilelement vorgesehen, damit bei Anbringung je eines Profilelements auf beiden Seiten des Schienenstegs die Befestigungsklammern versetzt zueinander angeordnet werden können. Fig. 2 additionally shows vertically extending grooves 30, which extends from the side of the front surface 14 into the broadening 26 and from the underside of the profile element to the recess 24. The grooves 30 serve to receive suitable elastic fixing elements, for example metal clamps, such that they extend into the grooves 30 and, with a corresponding dimensioning of the width of the grooves in coordination with the width of the elastic fixing element, prevent a longitudinal offset of the profile element. Preferably, a total of four grooves per profile element are provided so that when mounting each one profile element on both sides of the rail web, the mounting brackets can be offset from each other.

Fig. 3 zeigt eine herkömmliche Schiene 32 mit Schienenkopf 34, Schienensteg 36 sowie Schienenfuß 38. Das in Fig. 1 dargestellte Profilelement 10 ist in Fig. 3 in Montageposition am Schienensteg 36 angeordnet, wobei das Profilelement 10 im Bereich der Anlagefläche 16 am Schienensteg und Schienenfuß anliegt. Im Bereich 22 liegt das Profilelement 10 nicht an der Schiene an, um Fertigungstoleranzen insbesondere im Bereich der Radien zwischen Schienenkopf und Schienensteg, sowie zwischen Schienensteg und Schienenfuß aufzunehmen. Im Vergleich zur Ausführungsform nach Fig. 1 besitzt das Profilelement nach Fig. 3 keine zweite Ausnehmung zur Kabeldurchführung. Fig. 3 shows a conventional rail 32 with rail head 34, rail web 36 and 38 rail foot Fig. 1 shown profile element 10 is in Fig. 3 arranged in the mounting position on the rail web 36, wherein the profile element 10 rests in the region of the contact surface 16 on the rail web and rail foot. In the region 22, the profile element 10 does not rest on the rail to accommodate manufacturing tolerances, in particular in the region of the radii between rail head and rail web, as well as between rail web and rail foot. Compared to the embodiment according to Fig. 1 owns the profile element after Fig. 3 no second recess for cable entry.

Wie in Fig. 3 ersichtlich ist, liegt das Profilelement direkt an der Schiene an, wobei unter dem Begriff "direkt" zu verstehen ist, dass sich zwischen dem Profilelement und der Backenschiene 32 keine Ausgleichschicht oder Klebstoffschicht befindet. Um dennoch eine sichere Anlage und einen geeigneten Anpressdruck zwischen Profilelement und Backenschiene sicherzustellen, sind für jedes Profilelement mindestens zwei Halteklammern 40 vorgesehen, die im Bereich 40a den Schienenfuß auf der dem Profilelement abgewandten Seite der Schiene umgreifen, unter dem Schienenfuß verlaufen und auf der dem Profilelement zugewandten Seite um den Schienenfuß herum geführt und vorzugsweise eine in Fig. 3 nicht dargestellte Nut durchlaufen und mit dem Bereich 40b in die Ausnehmung 24 des Profilelements drücken. Auf diese Weise wird das Profilelement 10 ohne Verwendung einer Klebstoffschicht an der Backenschiene fixiert, wobei nach dem Abnehmen der Halteklammer 10 das Profilelement bequem von der Backenschiene demontiert und an anderer Stelle wieder verwendet werden kann.As in Fig. 3 can be seen, the profile element is located directly on the rail, which is to be understood by the term "direct" that between the profile element and the stock rail 32 is no compensation layer or adhesive layer. Nevertheless, a safe investment and a suitable To ensure contact pressure between the profile element and stock rail, at least two retaining clips 40 are provided for each profile element, which engage around the rail foot in the area 40a on the side facing away from the profile element of the rail, run under the rail and guided on the profile element facing the side of the rail around and preferably an in Fig. 3 not shown through groove and press with the area 40b in the recess 24 of the profile element. In this way, the profile element 10 is fixed without the use of an adhesive layer on the stock rail, wherein after removing the retaining clip 10, the profile element can be easily disassembled from the stock rail and used again elsewhere.

Bei dem in Fig.3 dargestellten Beispiel ist nur auf einer Seite der Schiene ein Profilelement 10 angeordnet, doch wird dieses vorzugsweise auf beiden Seiten der Schiene angeordnet, wobei die Halteklammer spiegelbildlich zu der in Fig. 3 dargestellten, beispielhaften Halteklammer angeordnet wird, um das weitere, in Fig. 3 nicht dargestellte Profilelement ebenfalls gegen den Schienensteg zu spannen.At the in Figure 3 example shown, only one side of the rail, a profile element 10 is arranged, but this is preferably arranged on both sides of the rail, wherein the retaining clip in mirror image to the in Fig. 3 shown, exemplary retaining clip is arranged to the further, in Fig. 3 Also not shown profiled element to clamp against the rail web.

Das in Fig. 1 dargestellte Profilelement kann aus einem thermoplastischen oder elastomeren Kunststoff hergestellt sein, in den metallische oder mineralische, wie anorganische Partikel eingebettet sind, die sich mit dem Kunststoffmaterial extrudieren, spritzgießen oder mit typischen Kunststoff verarbeitenden Verfahren herstellen lassen und die Funktion besitzen, die Masse des Profilelements zu erhöhen. Alternativ und ergänzend ist es auch möglich, einen mehrschichtigen Aufbau vorzusehen, wobei eine Struktur vorgesehen werden kann, wie sie in DE 20 2008 014 701 U1 beschrieben ist, welche beschreibt, dass auf einem geeigneten Absorptionsmaterial wenigstens eine Schicht eines Gewebes mit Kettdrähten und Schussdrähten vorgesehen sein kann, wobei zwischen den Kettdrähten und Schussdrähten gebildete Poren vorhanden sind und das Gewebe mit einer Vielzahl von sich im Wesentlichen senkrecht zu seiner Oberfläche erstreckenden Erhebungen und/oder Vertiefungen versehen ist, welche eine Höhe von jeweils wenigstens 0.5mm aufweisen. Für die exakte Beschreibung eines derartigen Schichtmaterials wird auf den Offenbarungsgehalt der DE 20 2008 014 701 U1 verwiesen. Eine entsprechende Gewebeschicht kann dabei sowohl auf der ersten Hauptfläche 12 wie auch Frontfläche 14 des Profilelements 10 angeordnet sein. Alternativ zu dem speziellen, in DE 20 2008 014 701 U1 beschriebenen Schichtaufbau kann allerdings auch ein Schichtaufbau bestehend aus thermoplastischem Material mit Metallpartikeln und/oder Mineralienpartikeln mit einer entsprechenden Gewebeschicht mit Kettdrähten und Schussdrähten auf deren Oberfläche kombiniert werden. Entscheidend ist aber, dass zwar das Profilelement 10 selbst aus verschiedenen Schichten bestehen kann, die miteinander laminiert sind, das Profilelement aber ohne die Verwendung einer Klebstoffschicht an der Backenschiene befestigbar ist.This in Fig. 1 shown profile element may be made of a thermoplastic or elastomeric plastic, in the metallic or mineral, such as inorganic particles are embedded, which extrude with the plastic material, injection molding or can be produced with typical plastic processing methods and have the function to the mass of the profile element increase. Alternatively and additionally, it is also possible to provide a multilayer structure, wherein a structure can be provided, as in DE 20 2008 014 701 U1 which describes that on a suitable absorbent material at least one layer of a fabric with warp wires and weft wires can be provided, wherein between the warp wires and weft wires formed pores are present and the tissue is provided with a plurality of substantially perpendicular to its surface extending elevations and / or depressions, which have a height of at least 0.5mm. For the exact description of such a layer material is on the disclosure of the DE 20 2008 014 701 U1 directed. A corresponding tissue layer can be arranged both on the first main surface 12 and front surface 14 of the profile element 10. Alternatively to the special, in DE 20 2008 014 701 U1 However, a layer structure consisting of thermoplastic material with metal particles and / or mineral particles can be combined with a corresponding layer of fabric with warp wires and weft wires on the surface layer described layer structure. It is crucial, however, that although the profile element 10 itself may consist of different layers that are laminated together, the profile element but without the use of an adhesive layer on the stock rail can be fastened.

Durch das erfindungsgemäße Profilelement ist ohne die Verwendung einer Klebstoffschicht eine optimale Ankopplung an den Schienensteg möglich und durch die Verbreiterung des Profilelements zum Schienenfuß hin wird die Masse und die Dämpfung in vertikaler Richtung erhöht. Der Verzicht auf Klebemittel bedingt aber auch eine einfache Demontage und Wiederverwendung des Profilelements.Due to the profile element according to the invention, an optimal coupling to the rail web is possible without the use of an adhesive layer and by the broadening of the profile element to the rail, the mass and the damping is increased in the vertical direction. The waiver of adhesive but also requires a simple disassembly and reuse of the profile element.

Claims (10)

  1. Profile element for damping sound vibrations on railway tracks (32), wherein
    - the profile element (10) has a first main surface (12) which is designed and has dimensions to be positionable in some regions as a support surface (16) without the provision of an adhesive layer on the rail stem (36); wherein the profile element (10) further comprises:
    - at least one recess (24) on a front surface (14) which lies opposite the support surface (16), wherein the at least one recess (24) is formed in the front surface (14) for positive engagement of a resilient fixing element (40) for fixing the profile element (10) against the rail stem (36); and
    - at least one widening (26) of the profile element (10) in the region of the front surface (14) which in the assembly position is arranged in the lower region of the front surface (14);
    characterised in that the profile element further comprises:
    - at least one, preferably two cut-outs (28) in the region of the widening (26) which in the assembly position expose at least in some regions the rail foot (38) for attaching a rail fastening.
  2. Profile element according to claim 1, further comprising a second recess (50) on the first main surface (12) which is suitable for the passage of cable.
  3. Profile element according to claim 1 or 2, characterised in that the profile element (10) has at least one layer of a web made from warp wires and weft wires and pores formed between the warp wires and weft wires, and the web is provided with a plurality of projections and/or depressions extending essentially vertically to its surface and which preferably have a height of in each case at least 0.5 mm.
  4. Profile element according to one of the preceding claims, characterised in that the at least one recess (24, 30) has dimensions in some regions on the front surface so that it receives only one resilient fixing element (40).
  5. Profile element according to one of the preceding claims, characterised in that the profile element (10) consists of a thermoplastic or elastomeric plastic with preferably homogerleously distributed, metallic or mineral particles embedded therein.
  6. Profile element according to one of the preceding claims, characterised in that the profile element has a length of about 500 mm.
  7. Rail for a railway track comprising a profile element according to one of the preceding claims, characterised in that the resilient fixing element is a foot clip (40) which encompasses the rail foot (38) on the one side of the track (32) and engages positively in one of the at least one recess (24, 30) of the profile element (10) on the other side of the track (32).
  8. Rail according to claim 7, characterised in that at least one profile element (10) is attached on both sides of the track (32).
  9. Use of a profile element (10) having at least one layer of a web with warp wires and weft wires and pores formed between the warp wires and weft wires for fastening on the rail stem (36) of a track (32) for noise reduction in railway tracks.
  10. Use according to claim 9, wherein the warp wires and weft wires of the web consist of an aluminium alloy, steel, stainless steel, aluminium or another light metal, plastic, ceramic, a copper alloy or a natural fibre.
EP09173760.1A 2009-10-22 2009-10-22 Rail bridge dampening for reducing noise on railway tracks Not-in-force EP2314768B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP09173760.1A EP2314768B1 (en) 2009-10-22 2009-10-22 Rail bridge dampening for reducing noise on railway tracks
ES09173760.1T ES2437145T3 (en) 2009-10-22 2009-10-22 Lane core damping for noise reduction on railway tracks
PCT/EP2010/065962 WO2011048209A1 (en) 2009-10-22 2010-10-22 Rail web damping to reduce sound on rail lines
US13/503,419 US8763924B2 (en) 2009-10-22 2010-10-22 Rail web damping to reduce sound on rail lines
CN201080059255.5A CN102725449B (en) 2009-10-22 2010-10-22 For the web of the rail buffer part of the noise reduction at railroad track place
EP10776960A EP2491178A1 (en) 2009-10-22 2010-10-22 Rail web damping to reduce sound on rail lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09173760.1A EP2314768B1 (en) 2009-10-22 2009-10-22 Rail bridge dampening for reducing noise on railway tracks

Publications (2)

Publication Number Publication Date
EP2314768A1 EP2314768A1 (en) 2011-04-27
EP2314768B1 true EP2314768B1 (en) 2013-09-18

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP09173760.1A Not-in-force EP2314768B1 (en) 2009-10-22 2009-10-22 Rail bridge dampening for reducing noise on railway tracks
EP10776960A Withdrawn EP2491178A1 (en) 2009-10-22 2010-10-22 Rail web damping to reduce sound on rail lines

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10776960A Withdrawn EP2491178A1 (en) 2009-10-22 2010-10-22 Rail web damping to reduce sound on rail lines

Country Status (5)

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US (1) US8763924B2 (en)
EP (2) EP2314768B1 (en)
CN (1) CN102725449B (en)
ES (1) ES2437145T3 (en)
WO (1) WO2011048209A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012022847A1 (en) * 2012-11-23 2014-05-28 Wirthwein Ag Damping module for reducing vibrations or noise development on rails
US11174597B2 (en) * 2018-09-17 2021-11-16 Polycorp Ltd. System and method for securing tuned mass dampers to rail
CN110485216A (en) * 2019-08-27 2019-11-22 上海工程技术大学 A kind of symmetrical clip for frequency modulation rail damper to be fixed on rail
CN113818290B (en) * 2021-11-22 2022-01-28 成都中拓科技有限公司 Continuous support floating rail type fastener system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784171B2 (en) 1968-07-13 1975-06-26 Kloeckner-Werke Ag, 4100 Duisburg Rail made of steel, with which a reduction or avoidance of undesired vibration noises takes place
GB9202992D0 (en) * 1992-02-13 1992-03-25 Ashdown Environmental Limited Noise suppression systems
CA2251490C (en) * 1998-10-22 2004-02-03 Polycorp Inc. Two-piece rail seal clip and tool for installing same
DE10215255A1 (en) 2002-04-07 2003-10-16 Wirthwein Ag Damping agent for rails
GB2404942A (en) * 2003-07-29 2005-02-16 Corus Uk Ltd Damping of rail tracks
DE202008014701U1 (en) 2008-11-05 2009-02-19 Härle, Hans A. Device for acoustic and thermal shielding
CN101413232A (en) * 2008-11-11 2009-04-22 中国船舶重工股份有限公司洛阳分公司 Method and device for designing wedge-type mounting floating rail vibration damping noise reduction fastener
CN201314016Y (en) * 2008-12-10 2009-09-23 袁仕华 Low-noise type steel rail

Also Published As

Publication number Publication date
EP2491178A1 (en) 2012-08-29
ES2437145T3 (en) 2014-01-09
EP2314768A1 (en) 2011-04-27
CN102725449A (en) 2012-10-10
WO2011048209A4 (en) 2011-07-28
US20120228394A1 (en) 2012-09-13
CN102725449B (en) 2015-10-07
US8763924B2 (en) 2014-07-01
WO2011048209A1 (en) 2011-04-28

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