EP0017995B1 - Connexion électriquement isolante entre les extrémités de deux rails - Google Patents

Connexion électriquement isolante entre les extrémités de deux rails Download PDF

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Publication number
EP0017995B1
EP0017995B1 EP80102091A EP80102091A EP0017995B1 EP 0017995 B1 EP0017995 B1 EP 0017995B1 EP 80102091 A EP80102091 A EP 80102091A EP 80102091 A EP80102091 A EP 80102091A EP 0017995 B1 EP0017995 B1 EP 0017995B1
Authority
EP
European Patent Office
Prior art keywords
fishplate
rails
connection according
fishplates
rail
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
Application number
EP80102091A
Other languages
German (de)
English (en)
Other versions
EP0017995A1 (fr
Inventor
Jacob Albertus Eisses
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.)
Edilon BV
Original Assignee
Edilon BV
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 Edilon BV filed Critical Edilon BV
Priority to AT80102091T priority Critical patent/ATE3887T1/de
Publication of EP0017995A1 publication Critical patent/EP0017995A1/fr
Application granted granted Critical
Publication of EP0017995B1 publication Critical patent/EP0017995B1/fr
Expired 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
    • E01B11/00—Rail joints
    • E01B11/54—Electrically-insulating rail joints

Definitions

  • This invention relates to an electrically insulating connection between the ends of two rails by means of two steel fishplates clamped against the rail ends on either side by clamping means, a cold-hardening plastics paste being provided between the fishplates and the rails.
  • the object of this invention is to provide an Insulating connection without any weakening of the fishplates while the connection can be tensioned before the paste hardens, so that the rail can be used.
  • each fishplate is provided with an electrically insulating shell, which consists of one or more parts and which engages around the top and bottom of the fishplate, the thickness of the shell edge portion engaging around the fishplate coinciding, in the clamped condition, with the thickness of the layer of plastics paste.
  • the shell portions engaging around the fishplate edges form the support surface for the fishplates.
  • the shells can be fitted very easily if the fishplates are so shaped that the edges of the shells engage around the fishplate edges, or in or around a profiled portion of the fishplate with a snap action. If the insulating shell has horizontal portions, it may be desirable to fix these parts to the fishplate, e.g. by gluing or melting.
  • the shell edge portions engaging around the fishplate may have on the outside a profiling which is de-- formable under clamping pressure. This gives a good contact against the rails on deformation of the profiling. It also improves sealing so that no paste can escape at these edge portions.
  • a wedge-shaped tooth profiling the height of the teeth gradually decreasing towards the edge.
  • shells may be provided with rigid annular washers of insulating material to take the clamping forces at the places where the clamping means pass through the shells. This gives complete insulation without the disadvantage of excessive local loading of the shells.
  • the shells with the annular washers ensure that there is no electrical creep path on the outside of the fishplates.
  • the clamping means may comprise screwthreaded members and nuts, the screwthreaded members may be provided with an insulating covering of the same basic material as the paste and the annular washers. Consequently, the fishplates are subjected to the same loading on both sides of the rail, with accurate control of the loading.
  • the covering will also form a unit with the hardened paste and with the annular washers.
  • the covering can be pressed tight around the clamping means.
  • the clamping means may have a smaller diameter at the insulating covering.
  • the diameter of the holes in the rails can then be as small as possible.
  • the steel fishplates may have slight longitudinal corrugations on the side adjacent the rail. The use of shallow corrugations does not give any appreciable weakening of the fishplate and yet resistance to loading in the longitudinal direction of the rails is much better.
  • the surfaces of the rail web adjacent the fishplates may also be provided with slight longitudinal corrugations. These corrugations can readily be applied because the surface to which the paste is applied must in any case be cleaned to remove rolling skin and other irregularities.
  • the corrugations in the rail web and in the fishplate may have the same length and a trough in one corrugation is situated opposite a crest of the other corrugation. A constant paste layer thickness can then be obtained with maximum shearing resistance.
  • Two rails 1 and 2 are interconnected by fishplates 3 and 4.
  • a washer 5 in the shape of a rail profile is disposed between the ends of the rails 1 and 2.
  • the rail 1 consists of a rail foot 6, a web 7 and a head 8.
  • a shell 9 of insulating material engages by the edge portions 10 and 11 around the bottom and top of the fishplate 3.
  • a shell 12 of corresponding construction is disposed on the fishplate 4.
  • Shell 12 has edge portions 13 and 14 which engage around the top and bottom edges of the fishplate 4.
  • the edge portions 10, 11 and 13, 14 bear against the rail foot 6 and rail head 8 with a deformable profiling.
  • a screwthreaded member 18 extends in figure 2 through holes 15 and 16 in the fishplate 3 and 4 and a hole 17 in the web 7.
  • a covering 19 of insulat;ng material is disposed around the screwthreaded member. It fits with some clearance in the holes 15, 16 and 17.
  • the shells 9 and 12 have an opening containing an annular washer 20 and 21 respectively, which is rigid and made of insulating material. Rings 22 and 23 bear on the rings 20 and 2'1 to support the nuts 24 and 25 on the screwthreaded member 18 in order to press the fishplates against the rail 3.
  • the profiled edge portions 10, 11, 13 and 14 of the shells 9 and 12 undergo deformation, thus providing a seal between the shells 9 and 12 and the rail foot 6 and head 8.
  • a cold-hardening paste 26 is provided in the space left free between the fishplates 3 and 4 and the rail 3 and in the space around the covering 19 and the screwthreaded member 18 and after hardening this forms a unit with the rings 22 and 23 and the covering 19, since these parts are made from the same basic material.
  • the paste 26 adheres to the steel fishplates 3 and 4, and to the rail 3.
  • the fishplates 3 and 4 have a corrugation 27 which extends in the longitudinal direction of the rails while similar corrugations 28 are provided on the web of the rails 2 and 3.
  • the troughs of the corrugations 27 may be situated opposite the crests of the corrugations 28.
  • FIG. 5 shows a slightly different embodiment.
  • the edge portion 13 has a protuding part 30 which cooperates through snap action with a depressed part 31 in the top of the the fish plate 4.
  • the same effect is obtained by giving the top of the fishplate 4 a protuding part 32 and the edge portion 13a depressed part 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (9)

1. Connexion isolante électriquement entre les extrémités de deux rails (1,2), ay moyen de deux éclisses en acier (3, 4) serrées contre les' extrémités des rails de chaque côté par des moyens de serrage, un pâte plastique (26) durcissant à froid étant prévue entre les éclisses et les rails, caractérisée en ce que du côté éloigné des reils chaque éclisse est munie d'une coquille (9, 12) isolante électriquement, qui consiste en une ou plusieurs parties et qui s'engage autour de la partie supérieure et de la partie inférieure de l'éclisse, l'épaisseur de la portion du bord (10, 11; 13, 14) de la coquille qui s'engage autour de l'éclisse coïncidant, dans ia condition serrée, avec l'épaisseur de la couche de pâte plastique.
2. Connexion suivant la revendication 1, caractérisé en ce que les parties du bord de la coquille qui s'engagent autour de l'éclisse ont à l'extérieur un profilage qui est déformable sous pression de serrage.
3. Connexion suivant la revendication 2, caractérisée en ce que les coquilles sont munies de rondelles annulaires (20,21) en matière Isolante pour prendre les forces de serrage aux endroits où les moyens de serrage traversent les coquilles.
4. Connexion suivant la revendication 3, caractérisée en ce que les rondelles annulaires consistent en la même matière de base que la pâte et s'engagent avec un ample jeu autour des moyens de serrage.
5. Connexion suivant la revendication 4, caractérisée en ce que les moyens de serrage comprennent des éléments à filet de vis (18) et des écrous (24, 25), les éléments à filet de vis étant munis d'un revêtement isolant (19) de la même matière de base que la pâte et les rondelles annulaires.
6. Connexion suivant la revendication 5, caractérisé en ce que les moyens de serrage ont un diamètre plus petit à l'endroit du revêtement isolant.
7. Connexion suivant l'une ou plusieurs des revendications qui précèdent,'caractérisée en ce que les éclisses en acier ont de faibles ondulations longitudinales (27) du côté adjacent au rail.
8. Connexion suivant la revendication 7, caractérisé en ce que les surfaces de l'âme (7) du rail adjacentes aux éclisses sont aussi munies de faibles ondulations longitudinales (28).
9. Connexion suivant la revendication 8, caractérisée en ce que les ondulations dans l'âme du rail et dans l'éclisse ont la même longueur et un creux dans une ondulation est situé en face d'une crête de l'autre ondulation.
EP80102091A 1979-04-18 1980-04-18 Connexion électriquement isolante entre les extrémités de deux rails Expired EP0017995B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80102091T ATE3887T1 (de) 1979-04-18 1980-04-18 Elektrisch isolierende verbindung zwischen zwei schienenenden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7903024 1979-04-18
NL7903024 1979-04-18

Publications (2)

Publication Number Publication Date
EP0017995A1 EP0017995A1 (fr) 1980-10-29
EP0017995B1 true EP0017995B1 (fr) 1983-06-22

Family

ID=19832999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102091A Expired EP0017995B1 (fr) 1979-04-18 1980-04-18 Connexion électriquement isolante entre les extrémités de deux rails

Country Status (4)

Country Link
EP (1) EP0017995B1 (fr)
AT (1) ATE3887T1 (fr)
DE (1) DE3063839D1 (fr)
ES (1) ES490653A0 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335311A1 (de) * 1982-10-01 1984-05-24 Schwihag Gesellschaft für Eisenbahnoberbau mbH, 8274 Gottlieben, Thurgau Laschenstoss, insbesondere schienenstoss
EP1030946A1 (fr) * 1997-11-18 2000-08-30 Edilon B.V. Methode de raccordement de longueurs de rail et raccord ainsi obtenu
RU2151078C1 (ru) * 1999-05-07 2000-06-20 Акционерное общество закрытого типа "Кампласт" Электроизолирующий стык для рельсовых цепей
RU2181154C2 (ru) * 2000-04-11 2002-04-10 Акционерное общество закрытого типа "Кампласт" Рельсовое стыковое электроизолирующее соединение

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683432A (en) * 1925-11-23 1928-09-04 Q & C Company Insulated rail joint
GB848143A (en) * 1957-05-27 1960-09-14 Brev Ind S A Improvements in or relating to the construction of railway tracks
FR1303247A (fr) * 1961-09-13 1962-09-07 Leuna Werke Veb Procédé pour l'établissement de jonctions isolantes entre extrémités de rails pour voies ferrées et rails munis de jonctions conformes ou similaires aux précédentes
DE1241473B (de) * 1963-11-06 1967-06-01 Franz Clouth Rheinische Gummiw Schienenstoss
DE1455395C3 (de) * 1964-04-08 1974-08-08 N.V. Edilon, Haarlem (Niederlande) Verfahren zur Herstellung einer isolierenden Schienenstoßverbindung
DE1240545B (de) * 1964-10-24 1967-05-18 Kloeckner Werke Ag Geklebte Schienenstossverbindung fuer Gleise und Verfahren zum Herstellen einer solchen Stoss-verbindung
US3335953A (en) * 1966-06-02 1967-08-15 Poor & Co Molded plastic insulated joints

Also Published As

Publication number Publication date
ES8100978A1 (es) 1980-12-01
ATE3887T1 (de) 1983-07-15
EP0017995A1 (fr) 1980-10-29
ES490653A0 (es) 1980-12-01
DE3063839D1 (en) 1983-07-28

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