EP3269877A1 - Palier intermédiaire de rail - Google Patents

Palier intermédiaire de rail Download PDF

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Publication number
EP3269877A1
EP3269877A1 EP17180407.3A EP17180407A EP3269877A1 EP 3269877 A1 EP3269877 A1 EP 3269877A1 EP 17180407 A EP17180407 A EP 17180407A EP 3269877 A1 EP3269877 A1 EP 3269877A1
Authority
EP
European Patent Office
Prior art keywords
rail
adhesive layer
adhesive
layer
intermediate layer
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.)
Granted
Application number
EP17180407.3A
Other languages
German (de)
English (en)
Other versions
EP3269877B1 (fr
Inventor
Herwig Miessbacher
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.)
Semperit AG Holding
Original Assignee
Semperit AG Holding
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 Semperit AG Holding filed Critical Semperit AG Holding
Publication of EP3269877A1 publication Critical patent/EP3269877A1/fr
Application granted granted Critical
Publication of EP3269877B1 publication Critical patent/EP3269877B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 present invention relates to a rail liner for placement between a railway sleeper and a rail, and to a method for building a track superstructure.
  • rail pads are made of elastomeric materials. These have the property that they generate very high friction, especially between the rail bottom and the rail liner. This is a problem during installation, assembly and disassembly of rail spacers.
  • rail pulling in the rail longitudinal direction before bracing and endless welding of the rails are often pulled by the high frictional forces the rail pads from the intended position between the rail bottom and the concrete sleeper ("intermediate layers hiking ").
  • the drawing length can be up to 1 m.
  • the rail liners pulled out in this way must be manually returned to their intended positions by high labor input.
  • a rail intermediate layer designed to be arranged between a railroad tie and a rail, in particular on a rail underside has an outer surface, wherein the outer surface is at least partially formed by or comprises an adhesive layer or an adhesive layer.
  • the outer surface or surface of the rail intermediate layer thus at least partially an adhesive or an adhesive layer, in particular an adhesive layer, on or forms of these.
  • the adhesive layer is provided on at least one of outer surfaces of the rail liner.
  • the rail intermediate layer has an (other / second) outer surface, which is not provided with the adhesive layer, but is preferably provided with a sliding layer.
  • the outer surface provided with the adhesive layer is preferably the underside facing the railway sleeper, and the other or second outer surface is preferably the upper side facing the rail.
  • the adhesive layer / adhesive layer can be produced by applying an additional material, for example in the form of an adhesive, be formed.
  • the adhesive layer / adhesive layer may also be formed by the rail intermediate layer itself or by the material of the rail intermediate layer itself, for example by the rail interlayer being treated accordingly, or generally by a corresponding process control during the production of the rail interlayer. The different options will be discussed separately below.
  • the sliding layer described above is expediently designed such that it has a lower coefficient of friction with the rail material than the adhesive layer or adhesive layer, in particular as the remainder or main or predominant component of the rail interlayer. It is preferably provided that the sliding layer is a plastic coating, a hard rubber coating, a metal coating, a fabric coating or a composite coating.
  • the plastic coating or hard rubber coating (which may also consist of a synthetic hard rubber material) may be a plate or a foil, for example. Form-fitting and in particular materially connected to the (base) material of the rail intermediate layer and on this Way is attached.
  • the thickness of a plate material may be between 0.2 mm and 5.0 mm.
  • the thickness of a sheet material may be between 0.05 mm and 0.5 mm.
  • a positive connection can, for. B. be a rivet, nail or screw.
  • the adhesive layer and / or sliding layer in the installed state rests directly on the rail or threshold.
  • the (adhesive) coated surface or outer surface with a protective layer such as a plastic film, be covered.
  • a protective layer such as a plastic film
  • z. B. in sleeper deducted.
  • such a rail interposition does not have in the sleeper after application of an adhesive to the threshold, in particular on the threshold top, with these are glued.
  • no additional manipulation laborious application of an adhesive, ensuring a flat, uniform layer thickness, workplace pollution, etc.
  • the outer surface is an upper side or / and a lower side and / or a side surface of the rail interlayer.
  • the upper side designates that side of the rail intermediate layer which is oriented towards the rail, in particular towards its rail foot.
  • the underside is oriented towards the railway sleepers. With the side surfaces in particular those side surfaces are meant, which are oriented to the arranged next to the rail further fasteners or components of the track superstructure, such as the angled guide plates out.
  • an adhesive layer is provided, whereby the position of the rail intermediate layer can be fixed / retained during rail pulling, while on the upper side, which is directed towards the rail, a displacement of the rail is made possible or remains possible , in particular by a sliding layer is provided here.
  • the adhesive layer may in each case be formed over the entire surface or only partially or in regions. Under a sectoral training, for example, a strip or punctiform design meant. According to one embodiment, for example, a plurality of strip-shaped adhesive / adhesive strips extend substantially along a track direction or, alternatively, substantially perpendicular thereto. An oblique orientation, for example, at a 45 ° angle, is possible, the orientation may be dependent in particular on the installation position / mounting position of the rail intermediate position, for example, if the corresponding rail interposition is in the range of a curve or in the range of a gradient or a slope, etc.
  • the adhesive strips have a different width, for example, towards a center of the rail intermediate position wider or vice versa.
  • Possible widths of the strips are z. In one area from about 5 to 80 mm, preferably 20 to 60 mm.
  • the partially configured adhesive layer is arranged in an edge region of the rail intermediate storage.
  • the adhesive layer is advantageously arranged in an area in which it is exposed to external weather conditions in the mounted state.
  • the edge region is to be understood as meaning an area which adjoins directly to an edge of the rail intermediate layer and preferably up to 10%, preferably 5% and particularly preferably up to 2.5% in the transverse direction or longitudinal direction, viewed in the transverse direction or longitudinal direction dimensioned overall width of the rail liner is limited.
  • the longitudinal direction is predetermined here by the track direction, and the transverse direction by a direction perpendicular to the track direction.
  • the partially configured adhesive layer extends circumferentially both in the longitudinal direction and transverse direction in the edge region.
  • the adhesive layer is designed frame-shaped and extends only in the edge region.
  • two, preferably only two, adhesive layers lie opposite one another in their respective edge regions in the longitudinal direction and / or transverse direction.
  • the adhesive layer is arranged only in the edge region.
  • the adhesive layer (40) is 0.05 to 0.95 times, preferably 0.15 to 0.85 times and particularly preferably covers 0.25 to 0.75 times a total area of the outer surface.
  • the rail intermediate layer has a recess in which the adhesive layer is arranged.
  • the adhesive layer can preferably be lowered into the rail intermediate layer, in particular without the adhesive layer projecting beyond the remaining course of the outer surface. This has the positive effect that the rail pads are not increased in thickness by the adhesive layer.
  • the side surfaces may be covered over the entire surface with an adhesive layer, while the top and / or bottom are covered only partially or etc. Also, a reverse configuration is possible, in which then the side surface (s) is only partially covered /are.
  • the adhesive layer on the side surfaces serves, in particular, to produce a certain adhesion / attachment to one or the laterally arranged guide elements of the rail fastening (such as angled guide plates), wherein the adhesive layer is formed or shaped such that a sufficiently high Liability / attachment is achieved.
  • the adhesive layer extends from, for example, the underside into the adjacent side surface and optionally also into the upper side or vice versa.
  • a continuous adhesive layer is thus designed such that it also covers the edges or is formed on these and not only on the "surfaces" of the rail intermediate layer.
  • the application of the adhesive layer or adhesive layers For example, in such an embodiment, it may be easy to dip the rail pad into a corresponding adhesive material. For example, only the edge regions or only the corners dipped etc. Also by only partial vulcanization of the rail intermediate layer can be very effectively such an adhesive layer / adhesive layer are generated (see also the following comments).
  • a thickness of the adhesive layer is about 0.05 to 3 mm, in particular about 0.1 to 1 mm.
  • the application of the adhesive layer can take place during (online) or after (offline) the production of the intermediate layer itself.
  • a ratio of a thickness of the adhesive layer to a total thickness of the rail interlayer is in a range of about 0.001 to 0.3, in particular in a range of about 0.01 to 0.2.
  • the rail intermediate layer has on its respective outer surfaces a plurality of adhesive layers which differ in thickness / thickness.
  • the adhesive layer attached to the underside is thicker than the adhesive layer attached to the top layer, since the railway sleeper, which is usually made of concrete, has a higher roughness than the rail underside.
  • Such a thicker adhesive layer can very well interlock positively in the rough concrete and thus allow an additional locking alone on a positive connection.
  • a correspondingly thinner rail-side adhesive layer is designed such that sufficient adhesion to or on the rail is made possible.
  • an adhesive layer on the upper side may possibly also be omitted completely or a sliding layer may be provided there.
  • the adhesive layers may also differ in their adhesive / adhesive properties, for example, the adhesive layer directed towards the threshold has a lower adhesive force / adhesive force.
  • this can be particularly advantageous for the disassembly of the rail intermediate, since the rail intermediate position due to the lower adhesive strength can be easily removed again.
  • the adhesive layer oriented towards the threshold is also softer than the adhesive layer directed towards the rail, whereby the advantage here is that the softer and optionally also thicker side adhesive layer in the (concrete) material of the railway sleeper can intervene, in particular can engage positively.
  • the rail intermediate layer has projections and / or recesses or recesses or undercuts for the form-fitting arrangement of the adhesive layer.
  • the height of the projections or recesses or undercuts, recesses, etc. corresponds approximately to a height of the adhesive layer or is slightly smaller.
  • the projections or recesses etc. allow an additional, in particular lateral, hold of the adhesive layer on the intermediate layer, be it on the upper side or on the lower side or also on the lateral surfaces.
  • the adhesive layer encloses or embraces the projections or recesses and is thus held on the intermediate layer not only by an adhesive bond, effected by cohesion and adhesion of the adhesive layer, but also by positive locking.
  • an additional connecting layer is provided between the adhesive layer and the rail intermediate, which can be done by a chemical and / or a physical processing of the rail interlayer. While the aforementioned projections and / or recesses can fix the adhesive layer (s) in particular laterally, in that the adhesive layer extends between the projections and / or recesses (and on the rail intermediate layer), the connection layer in question is between the Rail intermediate layer and the adhesive layer arranged.
  • the adhesive layer may also consist of projections and / or recesses in the form of knobs, undercuts, etc.
  • the adhesive layer can also be formed in that the intermediate layer is chemically pretreated in such a way that the adhesive layer adheres as well as possible.
  • Such a chemical pretreatment may, for example, lead to a roughening of the surface of the rail interlayer, whereby the adhesion of the adhesive layer is improved.
  • the adhesive layer may consist of hot melt adhesive, solvent-based wet adhesive, contact adhesive, dispersion adhesive, water-based adhesive, plastisol, hotmelt and / or rubber.
  • the adhesive layer or adhesive used to make the adhesive layer / adhesive layer comprises two phases, one phase providing higher adhesion than the other.
  • the adhesive layer / adhesive layer is realized by an unvulcanized rubber layer, which is expediently made from SBR (styrene-butadiene rubber), EPDM (ethylene-propylene-diene rubber) and / or natural rubber.
  • the rail liner as such, made of z. B. SBR, EPDM and / or natural rubber, only partially or partially vulcanized, wherein the unvulcanized part forms the adhesive layer / adhesive layer.
  • an adhesive layer consists of a plurality of adhesive layers / adhesive layers, wherein the different adhesive layers may be distinguished by a different thickness or by different adhesive materials, for example selected from the previous list.
  • the layers may also differ in terms of their adhesion, with z.
  • the layer which is oriented closer to the rail intermediate layer has a higher adhesive strength than the layer or layers which are oriented closer to the rail, to the sill or to the angled guide plates. This advantageously allows a clean and easy dismantling of the rail liner worn after a few years.
  • the adhesive layer / adhesive layer is formed such that the adhesive properties or adhesion in general, in particular caused by cohesion and / or adhesion, with time decrease.
  • the adhesive material is selected or the adhesive layer dimensioned or positioned so that during the installation phase (rail pulling) the strongest possible connection between the intermediate layer and the concrete sleeper is achieved.
  • the liability z. As by penetrating water and dust or heat exposure, both in terms of adhesion to the railway sleeper and with respect to the adhesion to the rail. When changing the liner or disassembly, the liability is then advantageously reduced so much that a simple manual replacement of the liner is guaranteed.
  • the decrease in adhesive properties is attributed to a half-life, the half-life preferably being between 2 and 18 months, preferably between 10 and 16 months and particularly preferably between 12 and 14 months.
  • the half-life denotes that duration after which an adhesive force has fallen to half of its original value.
  • Fig. 1 shows in a sectional view of a railway sleeper 10, which extends substantially transverse to a rail or track direction S.
  • a rail 12 extends between the rail 12 and the railway sleeper 10, an intermediate layer 20 is arranged.
  • adhesive layers / adhesive layers 40 are arranged both on an upper side 22 and on an underside 24 of the rail intermediate layer 20. These are in the embodiment shown here in particular arranged over the entire surface, but could also be partially formed.
  • Side surfaces 26 of the rail intermediate layer 20, which are oriented towards the laterally arranged angled guide plates 14, are in the embodiment shown here not provided with an adhesive layer. However, these could also be provided partially or completely with an adhesive layer in order to additionally fix the rail intermediate layer in relation to the laterally arranged angled guide plates 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
EP17180407.3A 2016-07-14 2017-07-10 Palier intermédiaire de rail Active EP3269877B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016113012.5A DE102016113012A1 (de) 2016-07-14 2016-07-14 Schienenzwischenlage

Publications (2)

Publication Number Publication Date
EP3269877A1 true EP3269877A1 (fr) 2018-01-17
EP3269877B1 EP3269877B1 (fr) 2019-04-03

Family

ID=59313076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17180407.3A Active EP3269877B1 (fr) 2016-07-14 2017-07-10 Palier intermédiaire de rail

Country Status (2)

Country Link
EP (1) EP3269877B1 (fr)
DE (1) DE102016113012A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733968A1 (fr) * 2019-04-29 2020-11-04 Semperit AG Holding Système de stockage d'un rail, couche de glissement et procédé correspondant
US20220106741A1 (en) * 2018-09-13 2022-04-07 Vossloh Fastening Systems Gmbh Guide Plate and Rail Attachment Point

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE638883C (de) * 1933-09-07 1936-11-25 Pirelli Verfahren zur Verlegung von Schienen auf einer starren Betonunterlage
US20040113133A1 (en) * 2002-12-03 2004-06-17 Geissele William Hugo Abrasion assembly for supporting railroad ties
US7374109B2 (en) * 2006-04-06 2008-05-20 Crown Plastics Company Rail cushion assembly
JP2014190006A (ja) * 2013-03-26 2014-10-06 Nhk Spring Co Ltd 軌道パッド

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880127A (en) * 1955-12-23 1959-03-31 American Brake Shoe Co Railway tie pads
DE2527494B2 (de) * 1975-06-20 1978-02-23 Schienenbefestigung Kracke, Harald, 2870 Delmenhorst Schienenbefestigung
ZA78404B (en) * 1977-10-31 1978-12-27 Koppers Co Inc Composition for use between polymeric tie plates and cross ties

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE638883C (de) * 1933-09-07 1936-11-25 Pirelli Verfahren zur Verlegung von Schienen auf einer starren Betonunterlage
US20040113133A1 (en) * 2002-12-03 2004-06-17 Geissele William Hugo Abrasion assembly for supporting railroad ties
US7374109B2 (en) * 2006-04-06 2008-05-20 Crown Plastics Company Rail cushion assembly
JP2014190006A (ja) * 2013-03-26 2014-10-06 Nhk Spring Co Ltd 軌道パッド

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220106741A1 (en) * 2018-09-13 2022-04-07 Vossloh Fastening Systems Gmbh Guide Plate and Rail Attachment Point
EP3733968A1 (fr) * 2019-04-29 2020-11-04 Semperit AG Holding Système de stockage d'un rail, couche de glissement et procédé correspondant

Also Published As

Publication number Publication date
DE102016113012A1 (de) 2018-01-18
EP3269877B1 (fr) 2019-04-03

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