EP1420112A2 - Eisenbahnschwelle - Google Patents

Eisenbahnschwelle Download PDF

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Publication number
EP1420112A2
EP1420112A2 EP03425727A EP03425727A EP1420112A2 EP 1420112 A2 EP1420112 A2 EP 1420112A2 EP 03425727 A EP03425727 A EP 03425727A EP 03425727 A EP03425727 A EP 03425727A EP 1420112 A2 EP1420112 A2 EP 1420112A2
Authority
EP
European Patent Office
Prior art keywords
sleeper
railway
base surface
railway sleeper
covering
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.)
Withdrawn
Application number
EP03425727A
Other languages
English (en)
French (fr)
Other versions
EP1420112A3 (de
Inventor
Edo Molena
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.)
Imel Srl
Original Assignee
Imel Srl
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 Imel Srl filed Critical Imel Srl
Publication of EP1420112A2 publication Critical patent/EP1420112A2/de
Publication of EP1420112A3 publication Critical patent/EP1420112A3/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Withdrawn legal-status Critical Current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
    • E01B7/00—Switches; Crossings
    • E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/16—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from steel

Definitions

  • the present invention relates to a railway sleeper comprising the characteristics expressed in the preamble to claim 1.
  • the present invention finds application in particular for sleeper whose base surface tends to slip on the rocks which constitute the railway ballast.
  • Such metallic sleepers are used for example in correspondence with points and/or signals to allow the passage of electrical wires underneath the tracks.
  • known hollow metallic railway sleepers allow the passage of the wires inside them.
  • the fact that the sleeper may slip on the ballast constitutes a considerable drawback, since on one hand it can cause hardships for personnel having to install the sleepers, and on the other hand it can constitute a hazard for the circulation of the trains, since it could case (especially if several adjacent sleepers were to slip) a deformation of the track.
  • the technical task constituting the basis for the present invention is to provide a railway sleeper which overcomes the aforementioned drawbacks.
  • a technical task of the present invention is to provide a railway sleeper which has a good grip on the ballast, regardless of the material whereof it is made.
  • Yet another technical task of the present invention is to provide a metallic railway sleeper which has a grip on the ballast that is at least equal to that of traditional cement sleepers.
  • a railway sleeper according to the present invention is globally designated by the reference number 1.
  • the present invention can be applied to railway sleepers of any type and material, although the present description expressly refers to the case of a metallic sleeper 1, for which the present invention is particularly advantageous.
  • the railway sleeper 1 has an elongated main body 2 which extends from a first end 3 to a second end 4 and which defines an upper surface 5 and a base surface 6 of the sleeper 1.
  • the upper surface 5 can be associated in use to the rails, whilst the base surface 6 can be associated by bearing onto the railway ballast.
  • two fastening elements 7 for the rails each comprising a base plate 8 interposed between the sleeper 1 and a coupling element 9.
  • First through holes 10 allow the coupling element 9 and the base plate 8 to be rigidly connected to the sleeper 1 by means of through bolts (not shown herein).
  • the sleeper 1 further comprises at least an element 11 for covering at least a portion 12 of the base surface 6, which is able to exert a stronger grip on the ballast than could be exerted by the portion 12 of the base surface 6 covered by it.
  • the covering element 11 is constituted by a preferably metallic mesh 13, associated to the base surface 6 at least perimetrically.
  • FIGs 4 through 7 show some examples of covering elements 10 having different patterns of the mesh 13.
  • the covering element 11 can also comprise a rigid frame 14, whereto the mesh is rigidly fastened, which in turn is fastened to the base surface 6 of the sleeper 1.
  • the rigid frame 14 (or, in its absence, the edge of the mesh 12) can be fastened to the sleeper by welding.
  • a railway sleeper in accordance with the present invention can be provided with covering elements 11 of various shapes and dimensions.
  • the covering element 11 can be a single one and cover either just a reduced portion of the base surface 6, or the entire base surface 6.
  • multiple covering elements 11 can be distributed over the base surface 6, as in the case shown in the accompanying figures, in which two covering elements 11 are associated to the sleeper 1 each in correspondence with one of the ends 3, 4 of the sleeper 1 itself.
  • the railway sleeper 1 shown by way of example in the accompanying figures is a metallic sleeper for the passage of wires.
  • metallic sleepers for the passage of wires have at least an inner compartment 15 which extends longitudinally along all or less than all the extension of the sleeper 1 itself, to allow the passage of wires within it.
  • main body 2 of the sleeper 1 is constituted by a I sectioned metallic beam whereto are laterally associated (by means of through bolts, not shown, inserted in appropriate second through holes 16) two reverse L section bars 17 which define with the main body 2 two longitudinal compartments 15 which extend parallel within the sleeper 1.
  • the main body 2 can be constituted for instance by two I section metallic beams set side by side and rigidly connected (one of which serves the same function as the reverse L section bars 17 described above), which define a single longitudinal compartment between them.
  • the figures also show additional covering plates 18 which can be associated to the upper surface 5 of the sleeper 1.
  • Embodiments of the covering element 11 can be provided in which the mesh 13 is not present (although this is the preferred embodiment), but there is a portion of material capable of exerting a considerable grip on the ballast, such as rubber, or a high roughness material.
  • the presence of one or more covering elements considerably increases the grip of the sleeper on the ballast with the great advantage of minimising the risk of its moving from the ideal position. Additionally, the metal mesh is used, it is capable of enmeshing with the rocks constituting the ballast, allowing a secure and constant immobilisation of the sleeper (particularly if the mesh is fastened to the base surface only along its own perimeter).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Railway Tracks (AREA)
EP03425727A 2002-11-13 2003-11-11 Eisenbahnschwelle Withdrawn EP1420112A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR20020119 ITVR20020119A1 (it) 2002-11-13 2002-11-13 Traversina ferroviaria.
ITVR20020119 2002-11-13

Publications (2)

Publication Number Publication Date
EP1420112A2 true EP1420112A2 (de) 2004-05-19
EP1420112A3 EP1420112A3 (de) 2005-02-09

Family

ID=32170761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425727A Withdrawn EP1420112A3 (de) 2002-11-13 2003-11-11 Eisenbahnschwelle

Country Status (2)

Country Link
EP (1) EP1420112A3 (de)
IT (1) ITVR20020119A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2000596C2 (nl) * 2007-04-17 2008-10-20 Movares Nederland Bv Dwarsligger.
RU2340716C1 (ru) * 2007-09-13 2008-12-10 Открытое акционерное общество "Михайловский ГОК" Шпала
JP2014240585A (ja) * 2013-06-12 2014-12-25 泰生 佐藤 まくらぎ連結装置
GB2582778A (en) * 2019-04-02 2020-10-07 Oxford Plastic Sys Ltd Railway sleeper
RU205391U1 (ru) * 2021-02-16 2021-07-13 Федеральное государственное бюджетное образовательное учреждение высшего образования «Казанский государственный энергетический университет» Шпала

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1395541A (en) * 1920-10-14 1921-11-01 Henry R Wherley Railway-tie
US1500139A (en) * 1921-06-27 1924-07-08 Hugh C Lord Railroad tie
US1415672A (en) * 1921-10-04 1922-05-09 Guy A Ramsdell Metallic railway tie
DE589228C (de) * 1929-12-20 1933-12-08 Dezsoe Sinkovich Schienenbefestigung auf Eisenbetonschwellen mittels an der Unterseite der Schwelle angebrachter Metallplatten
US5540382A (en) * 1995-07-13 1996-07-30 Scheller; James D. Mud dispersement device for mounting underneath railway ties

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2000596C2 (nl) * 2007-04-17 2008-10-20 Movares Nederland Bv Dwarsligger.
RU2340716C1 (ru) * 2007-09-13 2008-12-10 Открытое акционерное общество "Михайловский ГОК" Шпала
JP2014240585A (ja) * 2013-06-12 2014-12-25 泰生 佐藤 まくらぎ連結装置
GB2582778A (en) * 2019-04-02 2020-10-07 Oxford Plastic Sys Ltd Railway sleeper
RU205391U1 (ru) * 2021-02-16 2021-07-13 Федеральное государственное бюджетное образовательное учреждение высшего образования «Казанский государственный энергетический университет» Шпала

Also Published As

Publication number Publication date
EP1420112A3 (de) 2005-02-09
ITVR20020119A1 (it) 2004-05-14

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