EP1706539B1 - Weichenschalter - Google Patents

Weichenschalter Download PDF

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Publication number
EP1706539B1
EP1706539B1 EP03819229A EP03819229A EP1706539B1 EP 1706539 B1 EP1706539 B1 EP 1706539B1 EP 03819229 A EP03819229 A EP 03819229A EP 03819229 A EP03819229 A EP 03819229A EP 1706539 B1 EP1706539 B1 EP 1706539B1
Authority
EP
European Patent Office
Prior art keywords
sliding
sliding device
railway switches
stock rail
bearing
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 - Lifetime
Application number
EP03819229A
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English (en)
French (fr)
Other versions
EP1706539A1 (de
Inventor
Graziadio Mazzi
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.)
Mazzi Tecnology Srl
Original Assignee
Mazzi Tecnology 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 Mazzi Tecnology Srl filed Critical Mazzi Tecnology Srl
Publication of EP1706539A1 publication Critical patent/EP1706539A1/de
Application granted granted Critical
Publication of EP1706539B1 publication Critical patent/EP1706539B1/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
    • E01B7/02—Tongues; Associated constructions

Definitions

  • the present invention relates to a sliding device for railway switches.
  • the subject device is meant for use both when installing new track switches and in existing switches.
  • known sliding devices comprise a support structure bearing one or more rotating sliding elements able to support the points in a position removed from the stock rail.
  • the support structure is generally mounted on the track with fastening means.
  • a first type of device is derived directly on the sliding bearing of the points or anyway requires a specific design of the sliding bearing, as is readily apparent for instance from the description of the patents DE 4041264 and US 5390881 .
  • This known kind of device has the drawback of being able to be mounted exclusively on a bearing especially designed to receive it. It cannot be applied to the most common standards of sliding bearings currently present for instance on railway lines. This entails that said device can only be mounted when building a switch, whereas it cannot be mounted on existing switches unless the previously mounted sliding bearing is completely replaced or costly modifications are made to adapt the sliding bearing, which is not always feasible.
  • a support structure is used, mounted on the tracks with fastening means connected in overhang to the sleepers or connected between two consecutive sleepers.
  • fastening means of the support structure of the rotary sliding elements refer mainly to the sleepers, and hence to elements that generally have standardised technical-constructive characteristics.
  • the main defect of this kind of device is that it is not sufficiently simple to install and at times it requires the introduction of small modifications to enable to connect the fastening means which must be able to unload the stresses of the rotary sliding elements which are not positioned directly over the sleepers.
  • anchoring to the track occurs directly on the rail flange with fastening means that require the introduction of a plurality of elements (for instance, anchoring pincers shaped complementarily with respect to the flange of the point) which entail increased production and installation expenses (see description of the patent CH 368201 ).
  • This support structure has a box like arrangement, substantially shaped complementarily to an upper portion of the sliding bearing, and it is provided with two lateral flanks, on each whereof is mounted at least a shaft which supports at least a rotary sliding element able to support the point when it is removed from the stock rail.
  • the technical task constituting the basis for the present invention is to obtain a sliding device for railway switches that overcomes the aforesaid drawbacks.
  • the technical task of the present invention is to provide a sliding device for railway switches that is easily mounted on any railway switch, irrespective of the relative position of the bearing and of the point.
  • the reference number 1 globally designates a sliding device 1 for railway switches according to the present invention.
  • the sliding device 1 is meant to be coupled to railway switches (not shown) which have at least a fixed stock rail and a least a point movable, on command, between an active position, in which it is close to the stock rail, and an inactive position, in which it is distanced from the stock rail.
  • the sliding device 1 shown in the accompanying figures is destined to support the point during its move between the active position and the inactive position and during its permanence in the inactive position, according to the operating procedures described in the patent EP 922 807 .
  • the sliding device 1 comprises first of all a support structure 2 which has a central body 3 and two lateral flanks 4 connected to the central body 3.
  • the central body 3 can be coupled to an upper portion of a sliding bearing mounted over a sleeper of a track (not shown), and the support structure 2 has a "C" shaped, in order partially to encompass the sliding bearing.
  • the central body 3 is constituted by a flat plate which may have laterally (with reference to the direction of development which in use is perpendicular to the track) two flanges 5, perpendicular thereto, extending downwards, for the connection of the lateral flanks 4.
  • the sliding device 1 is also provided with at least two rotary sliding elements 6 able to support the point in the inactive position.
  • they are idle rollers 6 pivotally engaged to the lateral flanks 4 of the support structure 2, with horizontal axes of rotation, mutually parallel and substantially perpendicular, in use, to the direction of actuation of the point in correspondence with the sliding device 1.
  • two, four, six or more rotary sliding elements 6 can be provided, with half associated to a lateral flank 4 and half to the other one.
  • the lateral flanks 4 have at least a first part 8 associated to the central body 3 and at least a second part 9 associated to the first part 8.
  • the first part 8 is fastened to the central body 3, for instance by means of welding, and, in the illustrated embodiments, it vertically extends laterally to the central body 3 itself (in the cases where they are present, it is coupled to the vertical flanges 5 of the central body 3).
  • the second part 9 is instead movable relative to the first part 8 in such a way as to be adjustable vertically relative thereto, to adapt the position of the sliding elements 6 to the operative conditions of the switch whereto the sliding device 1 is applied.
  • the second movable part 9 of the flanks is removably secured to the first fixed part 8, whereto it is connected by means of one or more fastening screws 10 which are inserted into threaded holes 11 obtained on the fixed part 8 and possibly on the vertical flanges of the central body 3.
  • the mobile part 9 has vertically elongated through holes 12 which allow to adjust its position.
  • the second mobile part 9 of the flanks can be adjustable relative to the fixed part 8, both in continuous fashion (solution, not shown herein, in which the coupling surfaces are smooth), and in discrete fashion (as shown in the accompanying figures) with the capability to provide adjustment according to a predefined pitch.
  • first part 8 and the second part 9 of the lateral flanks 4 respectively have a first and a second coupling surface 13, 14, at least partly substantially having complementary shapes.
  • each coupling surface 13, 14 has a indentations 15 for coupling with the other surface (the indentations 15 are visible only in Figures 25 through 27 , whilst in the other figures it is shown with a black area).
  • the pitch of the indentations 15 constitutes the pitch for adjusting the movable part 9.
  • the discrete adjustment solution illustrated herein is preferable both when there are requirements for mechanical tightness between the movable part 9 and the fixed part 8, and to facilitate the positioning of the rotary sliding elements 6.
  • the movable part 9 or the fixed part 8 of each lateral flank 4 or both have an appendage 16 with mainly horizontal development positioned on the side of the device which in use is oriented towards the track.
  • This appendage 16 is able, in use, to be coupled to the lower part of the stock rail, and it inferiorly has a profile 17 for coupling to said stock rail.
  • the appendage 16 is provided with means 17 for adjusting the position of the movable part 9 or of the fixed part 8 whereof it is a part, operatively active in correspondence with the coupling profile 17.
  • the adjustment means 17 comprise a through screw 18 with mainly vertical development, inserted through the appendage 16 in proximity with its tip.
  • means 19 for locking the through screw 18 are provided, for selectively enabling or inhibiting its adjustment.
  • the locking means 19 are constituted by a horizontal screw 20 which intercepts each through screw 18.
  • each idle roller 6 has a lateral surface 21, hump shaped, to improve the sliding of the point.
  • fastening means 7 In regard to the fastening means 7, they can assume the most suitable shape according to requirements.
  • the fastening means comprise at least a slot 22 obtained in the support structure 2 and at least a locking member 23 inserted through the slot 22.
  • This solution allows to adjust the position of the sliding device 1 relative to the bearing and to the point.
  • the slot 22 is elongated according to a substantially horizontal direction of development and, in use, transverse to the track, whilst the locking member 23 is able to be hitched in use either with the sliding bearing or with the sleeper.
  • the locking member 23 is not shown, but it can be constituted either by a locking screw, or by the mounting screw of the sliding bearing.
  • the slot 22 is obtained along the central longitudinal axis of the central body 3, in correspondence with the end 24 which in use is farther away from the track. Moreover, the slot 22 is open in correspondence with said end 24 and two holed metal plates 25 are provided for tightness ( Figure 12 ).
  • the first engagement element 27 has a nut screw 29 for receiving the tightening screw 26.
  • the first and the second engagement elements 27, 28, which can be inserted into cavities present on the sliding bearing, have respective inclined surfaces 30, relative to said tightening screw 26, which allow their mutual sliding.
  • the first engagement element 27 can slide along the tightening screw 26 following its rotation in a direction or in the other.
  • screwing the tightening screw 26 causes the movement of the two engagement elements 27, 28 within the cavity (by mutual sliding along the respective inclined surfaces 30), between a first configuration of minimum bulk, in which they can be inserted without interference into the cavity, and a second configuration of maximum bulk, in which they act in sealed fashion within said cavity by means of two corresponding gripping surfaces 31.
  • a return spring 32 which tends to keep them in the position of minimum bulk.
  • an indented washer 33 which interacts with an additional indented portion 34 of the lateral flank 4 (shown in black colour in the accompanying figures).
  • Figures 1 through 24 also show constructive elements (such as washers, split pins, bearings, etc.), not described because they are known, and utilised in the usual fashion for mounting, in particular, the idle rollers 6).
  • constructive elements such as washers, split pins, bearings, etc.
  • the mounting of the sliding device 1 of the present invention provided with the engagement elements 27, 28, entails, first of all, the preparation of the bearing whereto it is to be applied, which is cleaned and deburred at least on the edges.
  • the cavities of the bearing must be completely freed from any deposits which may have accumulated therein.
  • the device is also correctly positioned transversely to the track by means of the slots 22.
  • the height of the idle rollers 6 must be verified to see whether it is adequate.
  • the device is so fitted, once the support structure 2 is positioned and locked, it is also possible to act on the through screws 18 of the adjustment means 17 to bring them to bear on the stock rail. Lastly, they are also locked by means of the horizontal screws 20.
  • the mounting is similar, with obvious modifications, in the case of the first type of fastening means 7 described herein.
  • the present invention achieves important advantages.
  • the sliding device for railway switches of the present invention can be easily mounted with an optimal adjustment on any railway switch, regardless of the relative position of the bearing and of the point.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Claims (16)

  1. Verschiebevorrichtung für Weichenschaltungen mit einer Anschlagschiene und wenigstens eine Weichenzunge, in der Lage, sich auf eine Betätigung hin zwischen einer aktiven Position, in welcher sie dicht an der Anschlagschiene liegt, und einer nicht aktiven Position zu bewegen, in welcher sie von der Anschlagschiene entfernt ist, wobei die genannte Verschiebevorrichtung (1) enthält:
    - eine Trägerstruktur (2) mit einem mittleren Körper (3), in der Lage, mit einem oberen Abschnitt eines Gleitlagers verbunden zu werden, montiert über einer Schwelle einer Schiene, und zwei Seitenflanken (4), angeschlossen an den genannten mittleren Körper (3);
    - wenigstens zwei Drehschiebeelemente (6), in der Lage, die genannte Weichenzunge in der genannten nicht aktiven Position zu halten und montiert eins an jeder der genannten Seitenflanken (4); und
    - Mittel (7) zum Befestigen der genannten Trägerstruktur (2) an dem genannten Gleitlager;
    dadurch gekennzeichnet, dass die genannten Seitenflanken (4) wenigsten einen ersten Teil (8) enthalten, der an dem mittleren Körper (3) befestigt ist, und wenigstens einen zweiten beweglichen Teil (9), zugeordnet dem ersten Teil (8) und vertikal im Verhältnis zu dem genannten ersten Teil (8) regulierbar, um die Position der Schiebeelemente (6) den Betriebsbedingungen anzupassen.
  2. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 1, dadurch gekennzeichnet, dass der zweite bewegliche Teil (9) der Flanken lösbar an dem ersten feststehenden Teil (8) angebracht ist.
  3. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 2, dadurch gekennzeichnet, dass der genannte bewegliche Teil (9) an den feststehenden Teil (8) mit Hilfe von einer oder mehreren Befestigungsschrauben (10) angeschlossen ist.
  4. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der zweite bewegliche Teil (9) der Flanken in kontinuierlicher Weise im Verhältnis zu dem feststehenden Teil (8) regulierbar ist.
  5. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der zweite bewegliche Teil (9) der Flanken in diskreter Weise im Verhältnis zu dem feststehenden Teil (8) regulierbar ist.
  6. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 5, dadurch gekennzeichnet, dass der genannte erste Teil (8) und der genannte zweite Teil (9) der Seitenflanken (4) jeweils eine erste und eine zweite Verbindungsfläche (13), (14) aufweisen, wenigstens teilweise einander ergänzend geformt, von welchen jede Einkerbungen (15) zum Verbinden mit dem anderen Teil hat.
  7. Verschiebevorrichtung für Weichenschaltungen nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass wenigstens der bewegliche Teil (9) und/oder der feststehende Teil (8) von jeder Seitenflanke (4) einen im wesentlichen horizontalen Ansatz (16) aufweist, dazu vorgesehen, sich im Betrieb mit dem unteren Teil der Anschlagschiene zu verbinden, und welcher an der Unterseite ein Profil (17) für den Anschluss an die genannte Anschlagschiene aufweist, und dadurch, dass sie ausserdem Mittel (17) zum Regulieren der Position des genannten beweglichen Teils (9) enthält, zugeordnet dem genannten Ansatz (16) und aktiv an dem genannten Anschlussprofil (17).
  8. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 7, dadurch gekennzeichnet, dass die genannten Reguliermittel (17) eine durchgehende Schraube (18) von vorwiegend vertikaler Ausdehnung enthalten, eingesetzt in den genannten Ansatz (16) und im Betrieb gegen den unteren Teil der Anschlagschiene drückend.
  9. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 8, dadurch gekennzeichnet, dass sie ausserdem Mittel (19) zum Blockieren der genannten durchgehenden Schraube (18) enthält, um wahlweise deren Regulierung zu ermöglichen und zu verhindern.
  10. Verschiebevorrichtung für Weichenschaltungen nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass sie eine Anzahl von Drehschiebeelementen (6) enthält, die den beweglichen Teilen (9) einer jeden Seitenflanke (4) zugeordnet sind.
  11. Verschiebevorrichtung für Weichenschaltungen nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass jedes Drehschiebeelement (6) aus einer leerlaufenden Rolle (6) besteht.
  12. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 11, dadurch gekennzeichnet, dass jede leerlaufende Rolle (6) eine buckelförmige seitliche Oberfläche (21) hat.
  13. Verschiebevorrichtung für Weichenschaltungen nach einem beliebigen der vorstehenden Patentansprüche, dadurch gekennzeichnet, dass die genannten Befestigungsmittel (7) wenigstens einen Schlitz (22) enthalten, erhalten in der Trägerstruktur (2) und länglich nach einer im wesentlichen horizontalen Ausdehnungsrichtung, und wenigstens ein Blockierelement (23), eingesetzt in den genannten Schlitz (22) und in der Lage, im Betrieb an dem genannten Gleitlager oder an der genannten Schwelle gespannt zu werden.
  14. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 13, dadurch gekennzeichnet, dass das genannte Blockierelement (23) eine Blockierschraube enthält, welche an das genannte Gleitlager oder die genannte Schwelle geschraubt werden kann.
  15. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 13, dadurch gekennzeichnet, dass das genannte Blockierelement (23) wenigstens eine Spannschraube (26) enthält, eingesetzt durch den genannten Schlitz (22), ein erstes Eingriffselement (27) mit einer Mutterschraube (29) zur Aufnahme der genannten Spannschraube (26) und ein zweites Eingriffselement (28), wobei die ersten und zweiten Eingriffselemente (27), (28) in einen Hohlraum eingesetzt werden können, der an dem genannten Gleitlager vorhanden ist und jeweilige schräge Oberflächen (30) aufweisen, im Verhältnis zu der genannten Spannschraube (26), verbunden zum gegenseitigen Gleiten einer an der anderen, wobei das Eindrehen der Spannschraube (26) das Verschieben der beiden Eingriffselemente (27), (28) im Inneren des Hohlraums durch gegenseitiges Gleiten entlang der jeweiligen schrägen Oberflächen (30) bewirkt, und zwar zwischen einer ersten Konfiguration des minimalen Umfangs, in welcher sie ohne Behinderung in das Innere des Hohlraums eingesetzt werden können, und einer zweiten Konfiguration des maximalen Umfangs, in welcher sie in abdichtender Weise und mit Hilfe der beiden entsprechenden griffigen Oberflächen (31) im Inneren des Hohlraums wirken.
  16. Verschiebevorrichtung für Weichenschaltungen nach Patentanspruch 15, dadurch gekennzeichnet, dass sie zwei der Schlitze (22) enthält, jeder zugeordnet einer jeden Seitenflanke (4), und zwei der genannten Blockierelemente (23), in der Lage, in die beiden Vertiefungen eingesetzt zu werden, die seitlich an dem genannten Lager erhalten sind.
EP03819229A 2003-12-30 2003-12-30 Weichenschalter Expired - Lifetime EP1706539B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2003/000863 WO2005064080A1 (en) 2003-12-30 2003-12-30 A sliding device for railway switches

Publications (2)

Publication Number Publication Date
EP1706539A1 EP1706539A1 (de) 2006-10-04
EP1706539B1 true EP1706539B1 (de) 2008-05-07

Family

ID=34717602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03819229A Expired - Lifetime EP1706539B1 (de) 2003-12-30 2003-12-30 Weichenschalter

Country Status (8)

Country Link
US (1) US20070176055A1 (de)
EP (1) EP1706539B1 (de)
AT (1) ATE394548T1 (de)
AU (1) AU2003300752A1 (de)
CA (1) CA2552373A1 (de)
DE (1) DE60320871D1 (de)
ES (1) ES2305584T3 (de)
WO (1) WO2005064080A1 (de)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH368201A (de) 1959-02-27 1963-03-31 Peddinghaus Carl Dan Kg Federnde Rollenlagerung für Weichenzungen
DE1658366A1 (de) 1967-10-16 1970-10-22 Wolfen Filmfab Veb Weichenzungenleitvorrichtung
LU75283A1 (de) * 1976-07-01 1978-02-08
AT375697B (de) 1982-09-03 1984-08-27 Maurer Gerhard Rollenlagerung fuer weichenzungen
DE4041264A1 (de) 1990-12-21 1992-06-25 Peddinghaus Carl Dan Gmbh Vorrichtung zum anheben der zungenschiene einer weiche
US5390881A (en) 1992-07-22 1995-02-21 Bwg Butzbacher Weichenbau Gmbh Roller assembly for a switch tongue used with a stock rail
DE9317723U1 (de) 1993-11-19 1994-01-20 Enzesfeld-Caro Metallwerke Ag, Enzesfeld Weiche für Gleise des schienengebundenen Verkehrs
US5501418A (en) * 1994-10-03 1996-03-26 Humphrey; John Switch point roller assist apparatus
IT1298067B1 (it) 1997-12-10 1999-12-20 Impresa Angelo Mazzi Snc Di Ma Dispositivo di scorrimento per scambi ferroviari

Also Published As

Publication number Publication date
AU2003300752A1 (en) 2005-07-21
WO2005064080A1 (en) 2005-07-14
ATE394548T1 (de) 2008-05-15
CA2552373A1 (en) 2005-07-14
ES2305584T3 (es) 2008-11-01
US20070176055A1 (en) 2007-08-02
DE60320871D1 (de) 2008-06-19
EP1706539A1 (de) 2006-10-04

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