WO2007102014A1 - Aiguillage ferroviaire - Google Patents

Aiguillage ferroviaire Download PDF

Info

Publication number
WO2007102014A1
WO2007102014A1 PCT/GB2007/000826 GB2007000826W WO2007102014A1 WO 2007102014 A1 WO2007102014 A1 WO 2007102014A1 GB 2007000826 W GB2007000826 W GB 2007000826W WO 2007102014 A1 WO2007102014 A1 WO 2007102014A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
inbound
outbound
railway switch
inbound 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.)
Ceased
Application number
PCT/GB2007/000826
Other languages
English (en)
Inventor
Robert Windsor Simmons
Reginald Raine Hall
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2007102014A1 publication Critical patent/WO2007102014A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • 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
    • E01B7/06—Constructions with flexible tongues or flexible fishplates

Definitions

  • the present invention relates to a railway switch and also to a rail mechanism including such a railway switch. More particularly, but not exclusively, the present invention relates to a railway switch having a free portion of an inbound rail adapted to be urged between first and second positions wherein the end of the rail is aligned with the ends of first and second outbound rails respectively.
  • railway switches where a single inbound rail splits into first and second outbound rails are well known.
  • Such known switches typically include a tapered guide rail.
  • the guide rail In a first position the guide rail is spaced apart from the inbound rail. As the train passes along the inbound rail it moves smoothly onto the first outbound rail.
  • the tapered guide rail In a second position the tapered guide rail abuts the incoming rail with the taper facing towards the direction of the incoming train. The wheel of a train which arrives at the guide rail is directed onto the guide rail and then onto the second outbound rail.
  • the railway switch according to the invention seeks to overcome these problems and/or more generally offer improvements or an alternative to such existing arrangements.
  • a railway switch comprising an inbound rail, first and second outbound rails which converge towards the inbound rail, a fixing means connected to the inbound rail and dividing the inbound rail into a free portion extending from the end of the inbound rail proximate to the outbound rail to the fixing means and a fixed portion extending from the fixing means away from the outbound rails, and an urging means for reciprocally displacing the free portion between a first position wherein the end of the inbound rail is aligned with the end of the first outbound rail and a second position wherein the end of the inbound rail is aligned with the end of the second outbound rail.
  • the fixed portion is fixed in relation to the outbound rails.
  • Such a railway switch smoothly guides the train to either of the first and second rails.
  • the free portion of the inbound rail which diverts the train between first and second rails is not tapered it is long lasting and relatively inexpensive to manufacture.
  • the urging means elastically deforms the free potion of the inbound rail between first and second positions.
  • the urging means pivots the free portion of the inbound rail between the first and second positions.
  • the urging means can comprise a sliding member engaged with the rail and adapted to be displaced between first and second positions.
  • the sliding member can be received within a guide surface to limit the movement of the sliding member.
  • the guide surface can comprise end walls against which the sliding member abuts in the first and second positions respectively to limit the motion of the sliding member.
  • the guide surface is adapted to allow for expansion and contraction of the rail.
  • the railway switch comprises a plurality of urging means spaced along the free portion of the inbound rail.
  • the urging means can be equally spaced along the length of the free portion.
  • the urging means can be connected together by a lock rod.
  • the lock rod can be connected to a pull bar such that displacement of the pull bar displaces the lock rod and hence the urging means.
  • each urging means is free to be displaced by a different amount depending upon its distance from the fixing means.
  • the railway switch comprises an expansion resisting means connected to the inbound rail to resist expansion and contraction of the inbound rail towards or away from the outbound rails.
  • the fixed portion of the inbound rail comprises an expansion accepting device for accepting expansion and contraction of the inbound rail.
  • a railway mechanism comprising a pair of railway switches.
  • Each railway switch comprises an inbound rail, first and second outbound rails which converge towards the inbound rail, a fixing means connected to the inbound rail and dividing the inbound rail into a free portion extending from the end of the inbound rail proximate to the outbound rail to the fixing means and a fixed portion extending from the fixing means away from the outbound rails, and an urging means for reciprocally displacing the free portion between a first position wherein the end of the inbound rail is aligned with the end of the first outbound rail and a second position wherein the end of the inbound rail is aligned with the end of the second outbound rail.
  • the fixed portion is fixed in relation to the outbound rails, and the free portion of the inbound rail of the first switch is connected to the free portion of the inbound rail of the second switch by at least one gauge bar.
  • Figure 1 shows a known railway switch
  • Figure 2 shows a railway switch according to an embodiment of the invention
  • Figure 3 shows a railway mechanism according to an embodiment of the invention.
  • Figure 1 shows a known railway switch 1.
  • the railway switch 1 comprises an inbound rail 2 connected to rail sleepers 3.
  • the inbound rail 2 continuously extends into a first outbound rail 4 as shown.
  • the railway switch 1 further comprises a guide rail 5 one end of which tapers towards the inbound rail 2.
  • the opposite end of the guide rail 5 continuously extends into a second outbound rail 6.
  • the railway switch 1 is shown in a first configuration with the guide rail 5 separated from the inbound rail 2. As a train passes over the switch 1 in this configuration the train wheel passes smoothly from the inbound rail 2 to the first outbound rail 4.
  • the switch 1 can be changed to a second configuration by displacing the guide rail 5 laterally until it abuts the inbound rail 2.
  • the train wheel is guided from the first rail 2 onto the guide rail 5 and then to the second outbound rail 6.
  • the train jolts. This is also wearing on the guide rail 5 which needs to be replaced frequently.
  • Figure 2 shows a switch 7 according to an embodiment of the invention.
  • the switch 7 comprises an inbound rail 8 and first and second outbound rails 9,10.
  • the first and second outbound rails 9,10 converge together towards the inbound rail 8.
  • a fixing means 11 is connected to the inbound rail 8 dividing the inbound rail 8 into fixed 12 and free 13 portions.
  • the fixed portion 12 extends from the fixing means 11 away from the outbound rails 9, 10.
  • the first fixing means 11 and a series of further fixing means maintain the fixed portion 12 in fixed relation to the first and second outbound rails 9,10.
  • the free portion 13 of the inbound rail 8 extends from the fixing means 11 to the end of the inbound rail 8 proximate to the outbound rails 9,10. This portion 13 of the inbound rail 8 is free to be displaced laterally in response to an external force.
  • Each sliding member 14 is received within a guide surface 15 within anchor blocks 16.
  • the anchor blocks 16 are connected to sleepers 17 regularly spaced below the inbound rail 8.
  • Each guide surface 15 comprises end walls 18 which limit the motion of the sliding members 14 within the guide surfaces 15 but allow longitudinal movement to accommodate normal expansion and contraction of the rail 8.
  • Each sliding member 14 is connected to a lock rod 19 by means of a sliding member bar 20.
  • a pull bar 21 Connected to the lock rod 19 is a pull bar 21 which is in turn connected to a control means (not shown) for changing the switch 7 between states.
  • the control means displaces the pull bar 21 which in turn pulls or pushes the lock rod 19.
  • the lock rod 19 in turn causes each sliding member 14 to slide within its guide surface 15 until it abuts the end wall 18. Displacement of the sliding member 14 displaces the free portion 13 of the inbound rail 8.
  • Each guide surface 15 has end walls 18 in slightly different positions.
  • the sliding members 14 closer to the fixing means 11 have less range of movement than the sliding members 14 further away and so will stop moving before the sliding members 14 further away from the fixing means 11.
  • the positions of the end walls 18 will therefore determine the shape of the free portion 13 in its two configurations.
  • the switch 7 is shown in a first configuration in figure two.
  • the inbound rail 8 is straight with the end of the inbound rail 8 aligned with the end of the first outbound rail 9. The wheel of a train passing over the switch 7 will therefore move smoothly from the inbound rail 8 to the outbound rail 9.
  • the end of the inbound rail 8 proximate to the outbound rails 9,10 comprises an expansion resisting means (not shown) to resist the expansion or contraction of the inbound rail 8 towards or away from the outbound rails 9,10.
  • the fixed portion 12 of the inbound rail 8 also comprises an expansion accepting device for accepting expansion and contraction of the inbound rail 8.
  • the end of the inbound rail 8 is aligned with the end of the second outbound rail 10.
  • the end walls 16 of the guide surfaces 15 are arranged such that the free portion 13 of the inbound rail 8 smoothly curves to meet the end of the second outbound rail 10.
  • a wheel of a train passing over the switch 7 in this configuration will pass smoothly around the bend in the free portion 13 of the inbound rail 8 and then onto the second outbound rail 10.
  • the train wheel passes smoothly from the inbound rail 8 to either the first or second outbound rails 9,10.
  • the inbound rail 8 is not tapered and accordingly is relatively inexpensive to manufacture.
  • the inbound rail 8 can be fastened to the sliding member 14 using the common fastening system, thus providing consistency of ride for the train.
  • Figure 3 shows a rail mechanism 22 according to an embodiment of the invention.
  • the rail mechanism 22 comprises two rail switches 7 according to the invention.
  • the two free portions of the two inbound rails 8 are connected together by a gauge bars 23 to ensure the correct spacing between the inbound rails 8 at all times.
  • the switch 7 comprises only one urging means close to the first and second outbound rails 9,10 for urging the free portion 13 between first and second configurations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Railway Tracks (AREA)

Abstract

L'invention concerne un aiguillage ferroviaire (7) comportant une voie d'arrivée (8), une première voie de départ et une deuxième voie de départ (9, 10) qui convergent vers la voie d'arrivée (8), un moyen de fixation (11) connecté sur la voie d'arrivée (8), et un moyen de sollicitation (14). Le moyen de fixation (11) divise la voie d'arrivée (8) en une partie libre (13) s'étendant de l'extrémité de la voie d'arrivée (8) à proximité de la voie de départ (9, 10) jusqu'au moyen de fixation (11), et une partie fixe (12) s'étendant du moyen de fixation (11) pour s'éloigner des voies de départ (9, 10), la partie fixe (12) étant fixe par rapport aux voies de départ (9,10). Le moyen de sollicitation (14) est arrangé pour déplacer en un mouvement de va-et-vient la partie libre (13) entre une première position dans laquelle l'extrémité de la voie d'arrivée (8) est alignée sur l'extrémité de la première voie de départ (9), et une deuxième position dans laquelle l'extrémité de la voie d'arrivée (8) est alignée sur l'extrémité de la deuxième voie de départ (10). L'invention concerne également un mécanisme ferroviaire comportant une paire de ces aiguillages ferroviaires (7), la partie libre (12) de la voie d'arrivée (8) du premier aiguillage (7) étant connectée à la partie libre (12) de la voie d'arrivée (8) du deuxième aiguillage (7) par au moins une tringle d'écartement (23).
PCT/GB2007/000826 2006-03-09 2007-03-09 Aiguillage ferroviaire Ceased WO2007102014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0604756.7 2006-03-09
GB0604756A GB2435893B (en) 2006-03-09 2006-03-09 A railway switch

Publications (1)

Publication Number Publication Date
WO2007102014A1 true WO2007102014A1 (fr) 2007-09-13

Family

ID=36241280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/000826 Ceased WO2007102014A1 (fr) 2006-03-09 2007-03-09 Aiguillage ferroviaire

Country Status (2)

Country Link
GB (1) GB2435893B (fr)
WO (1) WO2007102014A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009084939A1 (fr) * 2007-12-31 2009-07-09 Rajan, Suma Branchement ferroviaire du type à double liaison et rail plein

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452307B (en) * 2007-08-31 2012-06-06 Neculai Mihalachi The railway switch (point) with single elastic of traffic rails and load frame

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770614A (en) * 1904-09-20 Moore
GB2019626A (en) * 1978-04-22 1979-10-31 Elektro Thermit Gmbh Railway switch points
EP0315621A2 (fr) * 1987-11-05 1989-05-10 VOEST-ALPINE Eisenbahnsysteme Gesellschaft m.b.H. Dispositif de commutation pour pièces mobiles dans la zone de déviation d'un aiguillage ferroviaire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE161310C (fr) *
DE2042233C2 (de) * 1970-08-26 1975-01-16 Elektro Thermit Gmbh Zungenweiche, bei der die Zungen aus Schienenabschnitten des Stammgleises bestehen
BE794120A (fr) * 1972-02-03 1973-05-16 Patin Pierre Systeme de transport roulant guide
DE3017533C2 (de) * 1980-05-08 1982-07-22 Elektro-Thermit Gmbh, 1000 Berlin Schleppweiche
US4534527A (en) * 1984-01-30 1985-08-13 Canadian Patents & Development Limited All weather switch for railroads
FR2777920B1 (fr) * 1998-04-27 2000-06-23 Cegelec Sa Module d'aiguillage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770614A (en) * 1904-09-20 Moore
GB2019626A (en) * 1978-04-22 1979-10-31 Elektro Thermit Gmbh Railway switch points
EP0315621A2 (fr) * 1987-11-05 1989-05-10 VOEST-ALPINE Eisenbahnsysteme Gesellschaft m.b.H. Dispositif de commutation pour pièces mobiles dans la zone de déviation d'un aiguillage ferroviaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009084939A1 (fr) * 2007-12-31 2009-07-09 Rajan, Suma Branchement ferroviaire du type à double liaison et rail plein

Also Published As

Publication number Publication date
GB2435893B (en) 2011-03-23
GB0604756D0 (en) 2006-04-19
GB2435893A (en) 2007-09-12

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