EP0533528A1 - Verbessertes Herzstück und Verfahren zur dessen Herstellung - Google Patents

Verbessertes Herzstück und Verfahren zur dessen Herstellung Download PDF

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Publication number
EP0533528A1
EP0533528A1 EP92402447A EP92402447A EP0533528A1 EP 0533528 A1 EP0533528 A1 EP 0533528A1 EP 92402447 A EP92402447 A EP 92402447A EP 92402447 A EP92402447 A EP 92402447A EP 0533528 A1 EP0533528 A1 EP 0533528A1
Authority
EP
European Patent Office
Prior art keywords
slab
wings
central part
crossing
core
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
EP92402447A
Other languages
English (en)
French (fr)
Other versions
EP0533528B1 (de
Inventor
Gérard Testart
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.)
COGIFER Compagnie Generale dInstallations Ferroviaires SA
Original Assignee
COGIFER Compagnie Generale dInstallations Ferroviaires SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9417168&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0533528(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by COGIFER Compagnie Generale dInstallations Ferroviaires SA filed Critical COGIFER Compagnie Generale dInstallations Ferroviaires SA
Publication of EP0533528A1 publication Critical patent/EP0533528A1/de
Application granted granted Critical
Publication of EP0533528B1 publication Critical patent/EP0533528B1/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
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/12—Fixed frogs made of one part or composite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K7/00—Making railway appurtenances; Making vehicle parts
    • B21K7/02—Making railway appurtenances; Making vehicle parts parts for permanent way

Definitions

  • the invention relates to crossing hearts for railways, in particular tramways, and their manufacturing process.
  • treads for tramway wheels which are generally narrower than those of vehicles.
  • common rail and sometimes cause the need to wear the flange or wheel band tires on the rut of the grooves of the device when this obligation does not exist with wide tires.
  • crossing hearts have been proposed for tramway track apparatus made of cast steel.
  • This solution is known to be expensive because it requires various and numerous foundry molds, adapted to the various situations, and also long manufacturing times.
  • Another proposed solution consists in making crossing hearts from rolled steel.
  • raw rolling blocks are used which are then machined for example by milling, in order to spare therein in particular the rolling surfaces of what takes the place of fungus, the hare's feet, the grooves ruts as well as the parts in end needed for connections to the rails that surround it.
  • Such a solution is for example described in the document BE 899 679.
  • the object of the invention is to remedy this type of difficulty by reconciling different apparently contradictory objectives, that is to say using the minimum of material while obtaining a homogeneous one-piece, seamless crossing core, the parts of which are more stressed are subjected, if necessary, to treatments increasing their longevity.
  • the invention also relates to a crossing core for railways, in particular tramways, obtained by the manufacturing process in question.
  • a treatment is then carried out, for example thermal, which allows , by sufficiently increasing the hardness of this part, to give it greater longevity.
  • Another technique which makes it possible to increase the local hardness of the crossing core consists of a supply of a suitable metal deposited for example by welding in the region concerned. The machining is then carried out accordingly.
  • the location of the regions to be hardened is different in the case of the deep rut and in the case of the carrier rut, but both of the hardening techniques indicated above can be applied to both cases.
  • FIG. 1 represents a laminated slab, or a special profile 10, in its initial state which has been given in width, a dimension of 0.35 m for example and on which we have shown the longitudinal axis 100 preferably the plane of symmetry along which the slab will be partially split, over a distance AB and CD, in its end zones 11 situated on either side of a central part 12. thus by this partial slitting of the adjoining wings 110 two by two as illustrated on the right part of this figure.
  • the distances AB and CD can be equal or different.
  • Slitting is obtained using any suitable known technique, for example sawing or cutting with a torch.
  • the spacing is likewise obtained by any suitable technique by forging or deformation with a hydraulic press for example.
  • Figure 2 shows a crossing heart finished according to the invention seen from above after slitting along the axis 100 and spacing of the adjacent wings 10, machining and processing done.
  • the grooves machined for the wheel band or flange are designated by 30 and by 40 the machined ends for connection, for example by splicing or welding with the rows of rails of the running track which will frame it.
  • the spacing can be the same or different at each end.
  • Figure 3A shows a partial section along line 3-3 of Fig.2 in the case of a load-bearing rut.
  • Figure 3B shows a partial section along line 3-3 in Fig. 2 in the case of a deep rut.
  • the shaded areas 32, 33 and 34 are those to be hardened in the case of the supporting rut and in the case of the deep rut, respectively.
  • Machining is done in any suitable manner, for example by milling using a machine tool.
  • the heat or other treatment is carried out according to any appropriate standard technique.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Rolling (AREA)
  • Road Paving Structures (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Body Structure For Vehicles (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Sewing Machines And Sewing (AREA)
EP92402447A 1991-09-20 1992-09-07 Verbessertes Herzstück und Verfahren zur dessen Herstellung Expired - Lifetime EP0533528B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9111652 1991-09-20
FR9111652A FR2681618B1 (fr) 1991-09-20 1991-09-20 Cóoeur de croisement perfectionne et procede pour sa fabrication.

Publications (2)

Publication Number Publication Date
EP0533528A1 true EP0533528A1 (de) 1993-03-24
EP0533528B1 EP0533528B1 (de) 1995-06-07

Family

ID=9417168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402447A Expired - Lifetime EP0533528B1 (de) 1991-09-20 1992-09-07 Verbessertes Herzstück und Verfahren zur dessen Herstellung

Country Status (7)

Country Link
EP (1) EP0533528B1 (de)
DE (1) DE69202842T2 (de)
EG (1) EG19446A (de)
ES (1) ES2073892T3 (de)
FI (1) FI98846C (de)
FR (1) FR2681618B1 (de)
NO (1) NO300814B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138829A2 (de) 2000-03-30 2001-10-04 BWG Butzbacher Weichenbau Gesellschaft mbH & Co. KG Rillenschienenherzstück sowie Verfahren zur Herstellung eines solchen
EP2520711A3 (de) * 2011-05-04 2015-03-25 Vossloh Laeis GmbH Überlaufherzstück
CN109082950A (zh) * 2018-09-17 2018-12-25 四川易亨机械制造有限公司 一种耐磨钢叉心结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50106067D1 (de) 2000-03-30 2005-06-09 Butzbacher Weichenbau Gmbh Rillenschienenherzstück sowie Verfahren zum Herstellen eines solchen
DE102011018351B4 (de) * 2011-04-20 2015-03-12 Heinrich Krug GmbH & Co. KG Herzstück für Weichen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR697294A (fr) * 1929-06-19 1931-01-15 Dispositifs de joints de rails, par exemple, pièces de coeur d'aiguilles, croisements, etc.
FR2646115A1 (fr) * 1989-04-21 1990-10-26 Kihn Sarl Procede de fabrication d'aiguillages pour rails a gorge et aiguillage monobloc realise par ce procede

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR697294A (fr) * 1929-06-19 1931-01-15 Dispositifs de joints de rails, par exemple, pièces de coeur d'aiguilles, croisements, etc.
FR2646115A1 (fr) * 1989-04-21 1990-10-26 Kihn Sarl Procede de fabrication d'aiguillages pour rails a gorge et aiguillage monobloc realise par ce procede

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138829A2 (de) 2000-03-30 2001-10-04 BWG Butzbacher Weichenbau Gesellschaft mbH & Co. KG Rillenschienenherzstück sowie Verfahren zur Herstellung eines solchen
EP1138829A3 (de) * 2000-03-30 2003-04-23 BWG GmbH & Co. KG Rillenschienenherzstück sowie Verfahren zur Herstellung eines solchen
EP2520711A3 (de) * 2011-05-04 2015-03-25 Vossloh Laeis GmbH Überlaufherzstück
CN109082950A (zh) * 2018-09-17 2018-12-25 四川易亨机械制造有限公司 一种耐磨钢叉心结构

Also Published As

Publication number Publication date
EP0533528B1 (de) 1995-06-07
FI98846B (fi) 1997-05-15
DE69202842D1 (de) 1995-07-13
EG19446A (en) 1995-03-30
NO923652D0 (no) 1992-09-21
DE69202842T2 (de) 1995-11-30
FR2681618B1 (fr) 1993-11-26
FR2681618A1 (fr) 1993-03-26
FI98846C (fi) 1997-08-25
NO923652L (no) 1993-03-22
ES2073892T3 (es) 1995-08-16
FI924192L (fi) 1993-03-21
FI924192A0 (fi) 1992-09-18
NO300814B1 (no) 1997-07-28

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