EP0609728B1 - Elastische Schienenunterlage - Google Patents

Elastische Schienenunterlage Download PDF

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Publication number
EP0609728B1
EP0609728B1 EP94100915A EP94100915A EP0609728B1 EP 0609728 B1 EP0609728 B1 EP 0609728B1 EP 94100915 A EP94100915 A EP 94100915A EP 94100915 A EP94100915 A EP 94100915A EP 0609728 B1 EP0609728 B1 EP 0609728B1
Authority
EP
European Patent Office
Prior art keywords
rail
rail pad
foamed
pad
elastic
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.)
Expired - Lifetime
Application number
EP94100915A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0609728A1 (de
Inventor
Erich Dr. Ihle
Heinz Völker
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.)
Vossloh Werdohl GmbH
Original Assignee
Saar Gummiwerk 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 Saar Gummiwerk GmbH filed Critical Saar Gummiwerk GmbH
Publication of EP0609728A1 publication Critical patent/EP0609728A1/de
Application granted granted Critical
Publication of EP0609728B1 publication Critical patent/EP0609728B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
    • E01B9/683—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material layered or composite
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • E01B9/686—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with textured surface

Definitions

  • the invention relates to an elastic, substantially plate-shaped rail underlay made of foamed but homogeneous material according to the preamble of claim 1.
  • Elastic rail underlays are preferably used when laying tracks in firm carriageways, but also when laying in ballast beds as an intermediate storage between rail and sleeper or between sleeper and substructure for elastic deflection of the laid rails when crossing a train.
  • the elasticity and spring number of the intermediate bearings must be matched to the respective fastening system as well as the ax load and speed of the trains. For a good load distribution on several sleepers, deflection of the rails when passing by train of approx. 1.0 to 1.5 mm has proven to be favorable.
  • a disadvantage of this known rail pad is that water and dirt can penetrate into the interstice spaces or the grooves and fill them. This significantly affects the elasticity of the rail pad and changes the spring characteristic. In addition, the incompressible material is destroyed over time by the flexing work to be carried out under load. Another disadvantage is that the spring characteristic, especially with larger forces, is not linear.
  • Rail supports made of foamed EVA polymer are also known. With these rail pads there is no risk of destruction due to flexing work or of changing the spring characteristic due to dirt. However, they have insufficient temperature resistance. When storing at higher temperatures or in the sun or when the sun is shining on installed rail supports, an inadmissible change in the spring characteristic can occur. In addition, EVA polymer tends to creep under load, i.e. permanent deformations.
  • the object of the present invention is to provide a rail support which avoids these disadvantages.
  • the rail pad is made of EPDM rubber.
  • the rail support according to the invention is produced by closed-pore foaming of cross-linked rubber, the foaming process and the cross-linking of the material taking place in one work step.
  • the desired spring index of the rail pad can be easily adjusted by the degree of foaming.
  • the foam structure has larger or smaller pores depending on the specific weight of the parts. Since these pores are always closed-celled, water or dirt cannot penetrate into the interior and change the dynamic properties when the outer skin is cut off or damaged.
  • the surfaces of the rail underlay may be expedient to design the surfaces of the rail underlay as cover layers made of non-foamed or only slightly foamed material.
  • this cover layer should be kept very thin so as not to influence the elasticity of the foamed area.
  • the ratio of the thickness of the foamed central area to the thickness of the cover layer can be set by the production parameters. This makes it possible to make even relatively thin rail supports with a thickness of, for example, 5 mm much more elastic than comparable rail supports made of compact rubber with elasticity defined by the surface geometry, for example knobs.
  • the rail support according to the invention can thus be produced directly in its final form in one tool. However, it is also possible to punch out rail supports from prefabricated panels or sheets.
  • FIG. 1 shows a cross section through a rail support 1 according to the invention, which is designed as a simple flat plate.
  • FIG. 2 shows a cross section through a rail support 1 according to the invention with an inner foamed area 3 and the non-or slightly foamed cover layers 4.
  • FIG. 3 shows a cross section through a Rail pad 1, which is provided with lateral holding tabs 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Springs (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Body Structure For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Vibration Dampers (AREA)
  • Laminated Bodies (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Building Environments (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Braking Arrangements (AREA)
EP94100915A 1993-01-28 1994-01-22 Elastische Schienenunterlage Expired - Lifetime EP0609728B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4302298 1993-01-28
DE4302298A DE4302298A1 (de) 1993-01-28 1993-01-28 Elastische Schienenunterlage

Publications (2)

Publication Number Publication Date
EP0609728A1 EP0609728A1 (de) 1994-08-10
EP0609728B1 true EP0609728B1 (de) 1997-11-19

Family

ID=6479081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100915A Expired - Lifetime EP0609728B1 (de) 1993-01-28 1994-01-22 Elastische Schienenunterlage

Country Status (7)

Country Link
US (1) US5738279A (da)
EP (1) EP0609728B1 (da)
AT (1) ATE160398T1 (da)
DE (3) DE9321356U1 (da)
DK (1) DK0609728T3 (da)
ES (1) ES2109519T3 (da)
GR (1) GR3026092T3 (da)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29706642U1 (de) 1997-04-14 1997-08-28 Spreepolymer Gummiwerke GmbH, 15526 Bad Saarow-Pieskow Verbundsystem für hochpolymeres elastisches Plattenmaterial und frischem unabgebundenen Beton, insbesondere zur Schwingungsentkopplung und für den Unfallschutz
EP0890678A1 (de) * 1997-07-12 1999-01-13 Paul Müller Technische Produkte GmbH Elastische Zwischenlage zur Schwingungsdämpfung
DE29818027U1 (de) 1998-10-09 1999-01-07 Lausitz Elaste GmbH, 02929 Rothenburg Hüllprofil
US6283810B1 (en) * 1998-11-18 2001-09-04 Robert B. Evans Non-mold method of forming objects and articles formed thereby
JP2003512545A (ja) * 1999-10-18 2003-04-02 フェニックス アクチエンゲゼルシャフト 多筒マット
WO2004031501A1 (en) 2002-10-01 2004-04-15 Dodge-Regupol, Incorporated Noise and vibration mitigating mat
US20060244187A1 (en) * 2005-05-02 2006-11-02 Downey Paul C Vibration damper
DE202006008104U1 (de) * 2006-05-18 2006-07-20 Seifert, Dietrich Vorrichtung zur Vibrations- und Schalldämpfung von an Betonfundamenten befestigten Schienen für Züge, insbesondere Hochgeschwindigkeitszüge
WO2007145635A1 (en) * 2006-06-16 2007-12-21 Ryan Michael Sears Rubber laminate and composites including the laminate
US7556209B2 (en) * 2006-06-16 2009-07-07 Ryan Michael Sears Rubber laminate and composites including the laminate
JP5550358B2 (ja) * 2010-01-18 2014-07-16 株式会社ツキネコ スタンプ用スポンジ、スタンプ台およびスタンプ台セット
JP5925295B2 (ja) * 2012-03-12 2016-05-25 三井化学株式会社 鉄道レール用軌道パッド
US9441335B2 (en) * 2012-11-14 2016-09-13 Versaflex, Inc. Integrated ballast mat
US9869065B2 (en) * 2012-11-14 2018-01-16 Versaflex, Inc. Ballast mats and methods of forming the same
CN103628366A (zh) * 2013-11-12 2014-03-12 浙江省天台祥和实业有限公司 高速重载铁路扣件之轨下垫板
US20180202150A1 (en) 2015-06-25 2018-07-19 Pliteq Inc. Impact damping mat, equipment accessory and flooring system
CA2914212C (en) 2015-06-25 2018-05-22 Pliteq, Inc. Impact damping mat, equipment accessory and flooring system
GB201714867D0 (en) * 2017-09-15 2017-11-01 Tensar Tech Ltd Geoengineering constructions for use in railways
CN112239970A (zh) * 2020-08-25 2021-01-19 中铁工程设计咨询集团有限公司 一种双层弹性垫板及轨道扣件

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2086643A5 (da) * 1970-04-03 1971-12-31 Sonneville Roger
AT352164B (de) * 1977-09-07 1979-09-10 Getzner Chemie Gmbh & Co Daemmzwischenlage fuer die elastische lagerung der bettung von gleiskoerpern
DE2926658A1 (de) * 1978-08-10 1980-02-21 Krems Huette Gmbh Schotterloser bahnoberbau
FR2511405A1 (fr) * 1981-08-12 1983-02-18 Luchaire Sa Dispositif amortisseur pour voie ferree traditionnelle et procede de preparation de plaques pour ledit dispositif
DE3137187A1 (de) * 1981-09-18 1983-03-31 Metzeler Kautschuk GmbH, 8000 München "vulkanisierbares elastomer"
DE3148710C2 (de) * 1981-12-09 1986-02-27 Fa. Carl Freudenberg, 6940 Weinheim Schaumstoffbahn
GB2114633A (en) * 1982-01-15 1983-08-24 Ici Plc Rail pad
IT1157254B (it) * 1982-02-09 1987-02-11 Montedison Spa Procedimento per la preparazione di manufatti espansi a base di composizioni plastoelastomeriche poliolefiniche
CA1197826A (en) * 1982-06-02 1985-12-10 William D. Maass Railroad crossing structure
US4606498A (en) * 1984-08-23 1986-08-19 Epton Industries Inc. Rail seal
DE3503428A1 (de) * 1985-02-01 1986-08-07 Clouth Gummiwerke AG, 5000 Köln Schienenlager mit einer elastisch abgestuetzten rippenplatte
EP0301622B1 (en) * 1987-07-23 1994-09-14 Dsm N.V. Polyolefin foams having open and/or closed pores and consisting of polyolefins of ultrahigh molecular weight, process for their production, and their use
PL160847B1 (pl) 1989-12-20 1993-04-30 Przekladka wibroizolacyjna z elastycznego tworzywa sztucznego PL PL PL
IT1249285B (it) * 1990-07-19 1995-02-22 Fip Ind Isolamento elastico antivibrante, particolarmente studiato per binari ferroviari

Also Published As

Publication number Publication date
DE4302298A1 (de) 1994-09-08
ES2109519T3 (es) 1998-01-16
US5738279A (en) 1998-04-14
GR3026092T3 (en) 1998-05-29
ATE160398T1 (de) 1997-12-15
DE59404592D1 (de) 1998-01-02
DE9321356U1 (de) 1997-07-17
EP0609728A1 (de) 1994-08-10
DK0609728T3 (da) 1998-07-27

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