US20160244919A1 - Intermediate Element and System for Fixing a Rail for a Rail Vehicle Onto a Foundation - Google Patents

Intermediate Element and System for Fixing a Rail for a Rail Vehicle Onto a Foundation Download PDF

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Publication number
US20160244919A1
US20160244919A1 US15/027,549 US201315027549A US2016244919A1 US 20160244919 A1 US20160244919 A1 US 20160244919A1 US 201315027549 A US201315027549 A US 201315027549A US 2016244919 A1 US2016244919 A1 US 2016244919A1
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US
United States
Prior art keywords
intermediate element
rail
dimensionally stable
spring
element according
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.)
Abandoned
Application number
US15/027,549
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English (en)
Inventor
Nicole Wiethoff
Winfried Bosterling
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 Werke GmbH
Original Assignee
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
Assigned to VOSSLOH-WERKE GMBH reassignment VOSSLOH-WERKE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOSTERLING, WINFRIED, Wiethoff, Nicole
Publication of US20160244919A1 publication Critical patent/US20160244919A1/en
Abandoned 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
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
    • E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
    • E01B9/303—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips the clip being a shaped bar
    • 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
    • E01B9/60—Rail fastenings making use of clamps or braces supporting the side of the rail
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B26/00—Tracks or track components not covered by any one of the preceding groups
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2205/00—Electrical insulation of railway track parts

Definitions

  • the invention relates to an intermediate element for a system for fixing a rail for a rail vehicle onto a foundation.
  • the intermediate element is provided to be arranged between an end section of a spring element and a rail for rail vehicles such that the spring element exerts a retaining force on the rail by means of the intermediate element during use.
  • the intermediate element has a supporting surface for this purpose on which the end section of the spring element rests during use, and a contact surface that sits on the rail during use.
  • the invention also concerns a system having such an intermediate element for fixing a rail for a rail vehicle onto a foundation.
  • An intermediate element and a system of this kind are known from DE 20 2007 018 500 UI, for example.
  • a so-called ‘tensioning clamp’ is used as the spring element, which is configured in the shape of a ‘W’ having a middle bend and two spring arms extending away therefrom.
  • the free end sections of the spring arms of the spring element each rest inside a retainer which is moulded into the supporting surface of the intermediate element.
  • the intermediate element made of a non-conductive synthetic material rests on the upper side of the rail foot of the rail fixed using the system. In this manner, the intermediate element electrically separates the rail from the spring element and at the same time guarantees extensive exertion of the retaining force on the rail foot.
  • the purpose of the invention consists in providing means to minimise the risk of a shortening of the service life of a spring element, which is used in a system for fixing a rail to a foundation to hold down the rail, occurring following intermittent movements.
  • a system for fixing a rail should also be mentioned wherein simple means are used to prevent premature wear and tear of the spring element used in such a system to hold the rail down on the respective foundation.
  • the invention provides an intermediate element having the features indicated in claim 1 .
  • the invention stipulates the use of an intermediate element configured according to the invention.
  • the intermediate element according to the invention for a system for fixing a rail for a rail vehicle onto a foundation is provided accordingly to be arranged between an end section of a spring element and the rail to be fixed such that the spring element exerts a retaining force on the rail by means of the intermediate element.
  • the intermediate element has a supporting surface on which the end section of the spring element rests during use, and a contact surface that sits on the rail during use. According to the invention, the intermediate element is now designed to be resiliently compliant in an active direction from the supporting surface to the contact surface.
  • a system according to the invention for fixing a rail for a rail vehicle onto a foundation in which the rail has a rail foot, which supports it on the foundation, comprises accordingly
  • an intermediate element is inserted between the respective rail to be fixed and the end of the respective spring element acting on the rail.
  • said intermediate element has significantly greater elastic resilience and correspondingly less rigidity thereby creating a cushioning effect.
  • the intermediate element according to the invention thus offers significantly better shock-absorbing characteristics than is the case with insulating elements arranged in conventional systems for fixing rails for the purpose of electrical insulation between the respective spring element and the rail.
  • the intermediate element according to the invention equipped with specific elastic resilience during use allows isolation of the spring element exerting the retaining force from the movements made by the rail.
  • the vibrations of the spring arms are minimised and the cushioning effect achieved in this manner results in a reduction of the fading time for a natural vibration of the spring element.
  • the spring element is thus protected against excessive stress and its service life is increased significantly.
  • the default elasticity according to the invention and cushioning effect of the intermediate element can be guaranteed through a suitable design or the selection of a suitable material.
  • the intermediate element as a whole can also be made from an elastic or cushioning material, which has the required elasticity or attenuating characteristics, and at the same time is so wear-resistant that it can withstand the abrasive stresses that it is exposed to during use.
  • Such materials are used in rail systems for intermediate plates, for example, which are placed in a rail fixing point between the respective foundation and the rail resting on it, in order to guarantee a defined resilience of the rail in the direction of gravity.
  • the intermediate element transmits retaining forces, which are exerted by the respective spring element during use, to the rail in a permanently safe manner
  • the intermediate element may be appropriate for the intermediate element to have a dimensionally stable section, on the upper side of which the supporting surface is configured, upon which the spring element acts using the respective end section of its spring arm.
  • the elastic element is arranged on the underside of the dimensionally stable section assigned to the rail. In this manner the retaining forces applied by the spring element during use will be distributed over a large area of the elastic element and will prevent the elastic element from being damaged by the potentially sharp-edged end section of the spring element acting upon it or, on account of too small a contact surface between spring element and elastic element, from being placed under such heavy local strain that premature wear and tear occurs.
  • the intermediate element can also have a dimensionally stable section on the underside of which the contact surface is configured and on the upper side of which facing away from the contact surface, the elastic element rests accordingly.
  • the dimensionally stable section thus arranged between the elastic element and the rail during use protects the elastic element, in particular against abrasive wear and tear, which may otherwise occur in the event of contact between the elastic element and the generally comparably rough surface of the rail.
  • An intermediate element according to the invention has optimum effect and durability if the elastic element is arranged between two dimensionally stable sections, i.e. is shielded both on its upper side assigned to the respective end section of the spring element and on its underside assigned to the rail by a dimensionally stable section of the type explained above.
  • the elastic element is a layer made of an elastic, more particularly visco-elastic material, which is covered by the respective dimensionally stable section.
  • the elastic element can also be configured as a separately pre-assembled spring which is connected to the respective dimensionally stable section.
  • the dimensionally stable sections can each consist of a wear-resistant, hard material with a rigidity that is sufficient to absorb the strains occurring during use and to guarantee adequate dimensional stability of the respective section.
  • the dimensionally stable sections can be made of metal, for example.
  • a synthetic material which come into consideration here, are known per se from the manufacture of insulating intermediate elements of the type referred to at the beginning. They offer not only sufficient resistance to wear and tear and stability, but are also not electrically conductive.
  • the intermediate element is formed from at least one wear-resistant hard component acting as a vibration or electrical voltage insulator, which establishes contact with the rail or tensioning clamp, and an elastic soft component acting as an attenuator
  • the soft component can be applied to the hard component, i.e. the respectively available dimensionally stable section, in the manufacturing process such that a firmly bonded connection is established. This can be done through injection moulding or casting. However, it is also possible to pre-fabricate the respective dimensionally stable section and the elastic component separately and assemble them with the intermediate element subsequently.
  • the elastic element can be firmly bonded to the respective dimensionally stable element, for example, more particularly glued or moulded, or connected in another manner, for example, through a form-fit connection.
  • the elastic element is intended to be arranged as an intermediate layer between two dimensionally stable sections, to connect the dimensionally stable sections together by means of a material support, which is less elastic than the elastic element, and consequently the dimensionally stable sections and the support define a retainer on the upper side, underside and long side thereof, in which the elastic element sits.
  • a material support which is less elastic than the elastic element, and consequently the dimensionally stable sections and the support define a retainer on the upper side, underside and long side thereof, in which the elastic element sits.
  • This embodiment has the advantage that the dimensionally stable sections connected to each other by means of the support can be manufactured as a single piece in one operation, for example from a suitable, hard synthetic material.
  • the support can be easily designed through a corresponding reduction in its wall thickness such that it does not prevent the necessary elastic resilience of the elastic element sitting between the dimensionally stable sections.
  • a particularly suitable embodiment of an intermediate element according to the invention in particular for use in rail fixing systems, in which a W-shaped tensioning clamp is used as a spring element, is characterised in that it is configured in the shape of an elongated rectangle.
  • the end sections of the spring arms of such a tensioning clamp spring element can act upon the rail together by means of a single intermediate element.
  • an individual intermediate element can of course also be assigned to each of the spring arms.
  • moulded elements can be configured on the supporting surface thereof against which the assigned end section of the spring element is braced during use.
  • FIG. 1 a cross-section of a fixing point for a rail at right angles to the long side of the rail.
  • FIG. 2 a perspective view of an intermediate element for a system for fixing the rail.
  • the fixing point B shown in FIG. 1 comprises two identically constructed systems 1 , 1 ′ for fixing the conventionally configured rail S onto a fixed foundation U formed, for example, by a concrete sleeper or a concrete slab.
  • a system 1 , 1 ′ is arranged on each of the long sides of the rail S.
  • the rail S is part of a track for rail vehicles (the rest of which is not shown) and has a rail foot F, a support resting on the top thereof as well as a rail head borne by the support on the free upper side of which the running surface for the wheels of the rail vehicle is configured.
  • the systems 1 , 1 ′ each comprise a guide plate 2 , 2 ′.
  • a spring element 3 , 3 ′ configured as a conventional W-shaped tensioning clamp sits on each of said guide plates.
  • Each spring element 3 , 3 ′ is braced against the foundation U by means of a tensioning element 4 , 4 ′ configured as a conventional sleeper screw, which is screwed into a hole running through the respective guide plate 2 , 2 ′ from the upper to the underside thereof and into a plastic pin 5 , 5 ′ embedded in the foundation U.
  • the guide plate 2 , 2 ′ is configured in the manner of a conventional angled guide plate.
  • Said guide plate has a heel on its underside assigned to the foundation U with which it sits in a bonded manner in a correspondingly configured narrow channel 6 , 6 ′ moulded into the foundation and extending along the rail S.
  • the supporting surface of the respective guide plate 2 , 2 ′ facing the foot F of the rail S abuts the long side of the respective rail foot F assigned thereto. In this manner, the rail S is braced laterally by the guide plates 2 , 2 ′ on the respectively assigned long side.
  • the guide plates 2 , 2 ′ divert the shearing forces Q, which occur when a rail vehicle travels over the fixing point B, to the foundation.
  • an intermediate layer Z commonly used for this purpose made of an elastically resilient material, is placed between the rail foot F and the foundation U.
  • the respective spring element 3 , 3 ′ in system 1 , 2 exerts a retaining force N, N′ on the foot F of the rail S by means of the end sections 7 , 8 of its respective elastically resilient spring arms 10 , 11 extending from its middle bend 9 , with which the rail S is held pressed against the foundation U.
  • An intermediate element 12 , 12 ′ sits between the respective end sections 7 , 8 of the spring elements 3 , 3 ′ and the foot F of the rail S.
  • the elongated rectangular and identically configured intermediate elements 12 , 12 ′ each have a first, dimensionally stable, plate-shaped section 13 extending over their length LZ and width BZ, on the upper side of which a supporting surface 14 is configured for the respectively assigned end sections 7 , 8 of the spring elements 3 , 3 ′.
  • Moulded parts 17 , 18 are moulded onto the end sections of the supporting surface 14 adjacent to the front sides 15 , 16 of the intermediate elements 12 , 12 ′ which each define a cavity-like retainer 19 , 20 extending in the longitudinal direction L of the intermediate element 12 , 12 ′.
  • the respectively assigned straight end section 7 , 8 of the spring elements 3 , 3 ′ sits in said retainers 19 , 20 during use. In this manner, the end sections 7 , 8 are guided on their long sides such that their position remains secure on the respective intermediate element 12 , 12 ′ even in the event of stronger relative movements between spring element 3 , 3 ′ and rail S.
  • the intermediate elements 12 , 12 ′ also comprise a second, plate-shaped, dimensionally stable section 21 , which is arranged in a direction normally aligned towards to the supporting surface 14 at a distance from the first section 13 , and also extends along the length LZ and width BZ of the respective intermediate element 12 , 12 ′.
  • a flat contact surface 22 is configured on the underside of the second dimensionally stable section 21 assigned to the rail foot F with which the respective intermediate element 12 , 12 ′ rests on the upper surface of the rail foot assigned thereto during use.
  • the dimensionally stable sections 13 , 21 are connected by means of a support 23 , which extends along one long side 24 of the intermediate elements 12 , 12 ′. Looking at a cross sectional view of the long side L of the intermediate elements 12 , 12 ′, the dimensionally stable sections 13 , 21 and the support 23 encompass a ‘C’ shaped slot-like retainer 25 , which is open in the direction of the respective spring element 3 , 3 ′ in the position of use and extends along the length of the intermediate element 12 , 12 ′.
  • the dimensionally stable sections 13 , 21 and the support 23 for the intermediate elements 12 , 12 ′ are formed in a single-piece from a solid, dimensionally stable synthetic material, such as polyamide, for example, which optionally may be fibre or particle-reinforced.
  • An elastic element 26 consisting of a viscoelastically resilient synthetic material, such as a mixed or closed-cell material, for example polyurethane or ethylene propylene diene rubber, sits in the retainer 25 of the intermediate elements 12 , 12 ′.
  • a viscoelastically resilient synthetic material such as a mixed or closed-cell material, for example polyurethane or ethylene propylene diene rubber
  • a circular recess 27 extending above the height H of the intermediate element 12 , 12 ′ is formed in a central section of the intermediate element 12 , 12 ′, starting from the long side, which is assigned to the respective spring element 3 , 3 ′ during use, with which the arc of the U-shaped middle bend 9 of the respective spring element 3 , 3 ′ engages in ready-assembled systems 1 , 1 ′.
  • the material of the elastic element 26 is injected into the retainer 25 such that a firm, inseparable bond is created between the dimensionally stable sections 13 , 21 and the support 23 on the one hand and the elastic element 26 on the other.
  • the arrangement of the elastic element 26 in the retainer 25 firstly guarantees adequate dimensional stability and secondly, a defined elastic resilience of the intermediate elements 12 , 12 ′ in an active direction W corresponding to the active direction of the retaining force N, which is directed from the supporting surface 14 towards the contact surface 22 .
  • the intermediate elements 12 , 12 ′ are extremely rigid in a transverse direction to the active direction W. This ensures a higher creep resistance as a result of which a relative movement between the respective intermediate element 12 , 12 ′ and the assigned spring element 3 , 3 ′ is guaranteed.
  • the second dimensionally stable section 21 can even be dispensed with.
  • the elastic element 26 rests directly on the upper surface of the rail foot F assigned thereto. If a suitable material is available, the elastic element 26 could itself be used as an intermediate element or positioned sandwich-style between two dimensionally stable layers, which ensures even distribution of the loads acting on the elastic element.
  • the elastic element can also be enclosed in a robust material, wherein in this case, said enclosure must be configured such that use can be made of the attenuation effect of the elastic element as before.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
  • Railway Tracks (AREA)
  • Finger-Pressure Massage (AREA)
US15/027,549 2013-10-09 2013-10-09 Intermediate Element and System for Fixing a Rail for a Rail Vehicle Onto a Foundation Abandoned US20160244919A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/071099 WO2015051841A1 (de) 2013-10-09 2013-10-09 Elastisches zwischentück zum klemmen eines schienenfusses

Publications (1)

Publication Number Publication Date
US20160244919A1 true US20160244919A1 (en) 2016-08-25

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US15/027,549 Abandoned US20160244919A1 (en) 2013-10-09 2013-10-09 Intermediate Element and System for Fixing a Rail for a Rail Vehicle Onto a Foundation

Country Status (7)

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US (1) US20160244919A1 (de)
EP (1) EP3055459B1 (de)
KR (1) KR20160064209A (de)
CN (1) CN105658871A (de)
ES (1) ES2741152T3 (de)
RU (1) RU2016117880A (de)
WO (1) WO2015051841A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11492763B2 (en) 2016-11-16 2022-11-08 Vossloh-Werke Gmbh Tension clamp and fastening point for the fastening of a rail to the ground

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016122062A1 (de) 2016-11-16 2018-05-17 Vossloh-Werke Gmbh Spannklemme, Führungsplatte und Befestigungspunkt zum Befestigen einer Schiene auf einem Untergrund
DE102017111781A1 (de) 2017-05-30 2018-12-06 Vossloh-Werke Gmbh Spannklemme und Befestigungspunkt zum Befestigen einer Schiene auf einem Untergrund

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FR2079870A6 (de) * 1970-02-16 1971-11-12 Sonneville Roger
CH561822A5 (de) * 1971-07-30 1975-05-15 Vagneux Traverses Beton
BRPI0418935A (pt) * 2004-07-01 2007-11-27 Vossloh Werke Gmbh placa de guia angular e sistema para fixar trilhos para veìculos de trilho
DE202007018500U1 (de) 2007-02-19 2008-08-14 Vossloh-Werke Gmbh Isolier-Clip sowie System zum Befestigung einer Schiene für Schienenfahrzeuge
BRPI0822109A2 (pt) * 2008-02-22 2019-09-24 Vossloh Werke Gmbh "sistema para fixação de um trilho, e fixação de um trilho em um substrato"
DE202008014249U1 (de) * 2008-07-09 2008-12-24 Vossloh-Werke Gmbh System zum Befestigen einer Schiene auf einem Untergrund
DE102009041112B4 (de) * 2009-09-15 2014-10-30 Vossloh-Werke Gmbh System zum Befestigen einer Schiene und Befestigung einer Schiene
ES2443044T3 (es) * 2010-05-10 2014-02-17 Vossloh-Werke Gmbh Placa de guía para guiar lateralmente un sistema de raíl para la fijación de un raíl a una base
DE102010060745A1 (de) * 2010-11-23 2012-05-24 Vossloh-Werke Gmbh Führungsplatte zum seitlichen Führen einer Schiene und System zum Befestigen einer Schiene

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11492763B2 (en) 2016-11-16 2022-11-08 Vossloh-Werke Gmbh Tension clamp and fastening point for the fastening of a rail to the ground

Also Published As

Publication number Publication date
RU2016117880A (ru) 2017-11-13
ES2741152T3 (es) 2020-02-10
EP3055459A1 (de) 2016-08-17
EP3055459B1 (de) 2019-05-15
CN105658871A (zh) 2016-06-08
KR20160064209A (ko) 2016-06-07
WO2015051841A1 (de) 2015-04-16

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AS Assignment

Owner name: VOSSLOH-WERKE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WIETHOFF, NICOLE;BOSTERLING, WINFRIED;SIGNING DATES FROM 20160421 TO 20160425;REEL/FRAME:038918/0429

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE