WO2005083177A1 - Appareil de commande electrique d'aiguillage comportant des connecteurs de points d'aiguillage perfectionnes - Google Patents

Appareil de commande electrique d'aiguillage comportant des connecteurs de points d'aiguillage perfectionnes Download PDF

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Publication number
WO2005083177A1
WO2005083177A1 PCT/US2005/002513 US2005002513W WO2005083177A1 WO 2005083177 A1 WO2005083177 A1 WO 2005083177A1 US 2005002513 W US2005002513 W US 2005002513W WO 2005083177 A1 WO2005083177 A1 WO 2005083177A1
Authority
WO
WIPO (PCT)
Prior art keywords
collar
switch
bore
vertical shaft
operating rod
Prior art date
Application number
PCT/US2005/002513
Other languages
English (en)
Inventor
Maurizio Biagiotti
Original Assignee
General Electric Company
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 General Electric Company filed Critical General Electric Company
Priority to AU2005217383A priority Critical patent/AU2005217383B2/en
Priority to CA2555727A priority patent/CA2555727C/fr
Priority to DE602005003796T priority patent/DE602005003796T2/de
Priority to EP05712112A priority patent/EP1718803B1/fr
Priority to BRPI0506612A priority patent/BRPI0506612B1/pt
Priority to CN2005800050599A priority patent/CN1918340B/zh
Publication of WO2005083177A1 publication Critical patent/WO2005083177A1/fr

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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

Definitions

  • the present invention is in the field of railroad switching devices, namely the equipment which is used to displace railroad switch points. More specifically, the invention refers to a pivoting connector which connects each of the operating rods of the switching device to the associated switch point, in a non-binding relationship.
  • a railroad switch point consists of tapered rail sections which are capable of being selectively displaced between two different lateral positions at a rail switch and then locked in the selected position, in order to facilitate the desired routing of a train passing through the switch.
  • the two switch points are typically displaced by rods extending from an assembly which is referred to herein as a "switch machine". Inside the switch machine the rods are usually connected to a motive mechanism which provides reciprocating rectilinear motion, controlled by a power unit which is usually placed to one side of the rails.
  • the switch machine combines the switch point movement and switch point locking functions into a single mechanism to reduce mechanical complexity, enclosing the mechanism in a weather-proof housing, incorporating sensors and other electrical control components in the housing and locating the housing and operating assembly beneath the switch points and the associated rails.
  • binding may occur, as described below, when the operating rod does not move along its intended longitudinal line of action, but rather is subjected to lateral forces tending to cause it to bind at its attachment to the switch point and where the operating rod passes through the switch machine housing.
  • a bearing and a seal are usually provided at the entry point into the housing, to align the operating rod and to seal out water and other contaminants.
  • the outer end of each operating rod connects to an associated switch point, and as the operating rod is moved into and out of the switch machine housing, this substantially longitudinal movement of the operating rod is used to apply force to move the associated switch point laterally.
  • the lateral movement of the switch point requires some change in the angle between the operating rod and the switch point, because the switch point is actually pivoting about a pivot point at the other end of the switch point rail section. So, this change in angle can apply a lateral reactive force on the outer end of the operating rod, causing the inner end of the operating rod to apply substantial lateral force to the bearing and seal mechanism through which the operating rod enters the switch machine housing. This lateral reactive force can cause premature failure of the seal and binding of the operating rod relative to the housing, which can cause the switch machine to lock up.
  • the present invention is illustrated as implemented with a switch machine for operating a switch having switch points.
  • Two operating rods extend from either side of a fixed housing positioned between intersecting rails, to the movable switch points, with the rods being capable of longitudinally sliding relative to the housing. Movement of the operating rods moves the switch points between two positions between the pair of rails.
  • the switch machine operates to hold the rods in place to selectively lock the operating rods and the switch points in a desired position.
  • a pivoting connector assembly is provided on the outer end of each operating rod.
  • a socket mounted or formed on the outer end of the operating rod has a vertically oriented bore into which a pivot shaft is positioned, with a collar at the top of the vertical pivot shaft.
  • a horizontal bore is formed in the collar, and the collar bore is adapted to pivot about the vertical axis of the pivot shaft.
  • a horizontal pivot pin is attached essentially parallel to each switch point. This pivot pin is positioned through the collar bore, in a sliding arrangement.
  • the collar slides along the horizontal pivot pin by a slight amount.
  • the collar pivots about the vertical axis to maintain the alignment of the collar bore axis with the horizontal axis of the pivot pin. This prevents the pivot pin from imposing a lateral reactive force on the operating rod.
  • Figure 1 is an exploded view of the lower components of a switch machine which can implement the present invention
  • Figure 2 shows the switch mechanism holding the switch points in the full right position in the locked mode
  • FIG 3 shows the switch machine in the full right position of Figure 2, but with the control rod moved to the left to unlock the switch machine to move the switch points;
  • Figure 4 shows the switch machine with the control rod moved further to the left to move the switch points from the full right position toward the full left position;
  • Figure 5 shows the switch points moved to the full left position
  • Figure 6 shows a switch machine incorporating a modification according to the present invention
  • Figure 7A shows a schematic view of the rail layout of a switch point
  • Figure 7B shows a top plan view of the apparatus in Figure 6;
  • Figure 8 shows a perspective view of a pivoting connector according to the present invention
  • Figure 9 shows a first form of the connector according to the present invention.
  • Figure 10 shows another form of the connector according to the present invention.
  • Figures 1 1 and 12 show sectional views of a collar on the connector along line 1 1 -1 1 of Figure 10.
  • the switch machine includes three basic types of fixed components: a fixed housing 1 ; a plate 2 fixedly mounted within or otherwise attached to the housing 1 ; and two guides 3 fixedly mounted within or otherwise attached to the housing 1 , below the level of the fixed upper plate 2.
  • a capture mechanism including a plurality of capture elements and a shifting body, is used to selectively engage and disengage two operating rods 4, 5 to and from the fixed upper plate 2. More specifically, an upper set of interlocking or capture elements are provided to selectively interlock or engage the two operating rods 4, 5 with either the fixed upper plate 2 or the shifting body within the housing 1.
  • the fixed upper plate 2 is provided with two ball seats 24 mounted on the upper side thereof.
  • Each of the ball seats 24 houses a corresponding disk or follower plate 21 which can be completely inserted in its respective ball seat 24 against the action of a spring 22.
  • a lower set of interlocking elements are also provided to selectively interlock the shifting body with either the two fixed lower guides 3 or a control rod 8.
  • each of the two fixed lower guides 3 is provided with two transverse pin seats 32, with each pin seat 32 having sloping walls.
  • the movable components include the two operating rods 4, 5 which slidingly contact the lower side of the fixed plate 2, and which move the two switch points Al , A2 transversely.
  • the switch points Al , A2 are connected by one or more transverse bars 9, so that the switch points Al , A2 always move together and maintain their transverse spacing.
  • the switch points Al , A2 can move so that they contact either of two stock rails CI , C2 for the purpose of directing a passing rail car along the desired track.
  • Each operating rod 4, 5 is provided with a through hole 41 , 51 sized to allow a ball 42 to pass therethrough, with each ball 42 being sized to pass into one of the ball seats 24.
  • each operating rod 4, 5 in the vicinity of its respective through hole 41 , 51 is at least half the diameter of the ball 42.
  • a pin of suitable configuration could be used instead of the ball 42, and it could pass through corresponding shaped slots instead of the through holes 41 , 51.
  • the shifting body within the housing 1 includes a skate 6 and an inte ⁇ nediate shift assembly 7.
  • the skate 6, which slidingly contacts the lower sides of the operating rods 4, 5 is provided with two ball slots 61 , 62 recessed into its upper surface, oriented transverse to the longitudinal axis of the skate 6.
  • the wall of each ball slot 61 , 62 closest to the center of the skate 6 slopes upwardly toward the center.
  • Each ball slot 61 , 62 is able to accept one of the balls 42, with the depth of the ball slot 61 , 62 being no more than half the diameter of the ball 42.
  • a semi-cylindrical lower central cavity 63 is provided, with the axis of the semi- cylindrical cavity 63 being parallel to the longitudinal axis of the skate 6.
  • Two transversely oriented stabilizing recesses 65 are provided in the lower side of the skate 6, one stabilizing recess 65 being positioned beyond each end of the central cavity 63.
  • Each stabilizing recess 65 is capable of housing one transversely oriented, cylindrical, end stroke stabilizing pin 66.
  • the intermediate shift assembly 7 is positioned in contact with the lower side of the skate 6, with the longitudinal axis of the shift assembly 7 parallel to the longitudinal axis of the skate 6.
  • the shift assembly 7 includes a hollow central cylinder 71 , provided with a cylindrical sleeve 72 fixedly surrounding each end of the central cylinder 71.
  • Each sleeve 72 has two symmetrical wings 73 extending radially therefrom, transverse to the longitudinal axis of the shift assembly 7.
  • the upper portion of the central cylinder 71 and the cylindrical sleeves 72 of the shift assembly 7 can be securely inserted into the central cavity 63 on the lower side of the skate 6.
  • the symmetrical wings 73 rest flat on the upper sides of the fixed guides 3, with the lower portions of the central cylinder 71 and the cylindrical sleeves 72 positioned between the fixed guides 3.
  • Through slots 74 are provided in each of the wings 73, through which transversely oriented, cylindrical, shift pins 75 can pass in order to seat in the pin seats 32 in the upper sides of the fixed guides 3.
  • the control rod 8 controlled by an external power unit not shown in the drawings, enters the housing 1 from one side.
  • the control rod 8 can slide through the whole shift assembly 7, and it is provided with U-shaped right and left shift forks 81 ,_83 straddling the outer ends of the sleeves 72.
  • the shift forks 81 , 83 are fixedly mounted on, or integral with, the control rod 8, and they can partially slide over the tops of the wings 73 of the shift assembly 7.
  • An external power unit (not shown) can be provided outside the rails, and mounted to one side of the housing 1 , with a drive shaft, as is known in the art, passing under the rails and connected to the control rod 8 for achieving bi-directional longitudinal movement of the control rod 8.
  • FIGs 2 to 5 the sequential steps of the normal functioning of the switch machine are illustrated, and the relative positions of the switch machine components are shown.
  • the right switch point A2 is in contact with the right stock rail C2 at the full right end position of the stroke, and the control rod 8 is stabilized relative to the skate 6 by the left end stroke stabilizing pin 66 which is seated in the groove 82 on top of the left fork 83 and partially housed in the left stabilizing recess 65 in the lower side of the skate 6.
  • the right operating rod 5 is captured relative to the fixed plate 2 by the right ball 42, which is partially housed by the right through hole 51 in the rod 5 and partially housed in the right ball seat 24 of the plate 2.
  • the left operating rod 4 is also held in place relative to the fixed plate 2. Therefore, in the configuration shown in Figure 2, the switch points Al , A2 are held in place at the right end of the stroke. Further, in this configuration, the shift assembly 7 is captured or latched relative to the fixed guides 3 by the left shift pins 75, which are partially housed in the through slots 74 in the left wings 73, partially housed in the left pin seats 32 of the fixed guides 3, and held in place by the left fork 83 extending over the through slots 74. This latching prevents any movement of the shift assembly 7, such as might be caused by vibration, in order to lock the switch machine in this position.
  • each left shift pin 75 is cleared by the displacement of the left fork 83 toward the left. It is at this point that the shift assembly 7 and the skate 6 are unlatched, and they can begin to move to the left relative to the fixed guide 3, in response to the force exerted by the right fork 81. Because of the extended length of the left ball slot 61 , the control rod 8, the skate 6, and the shift assembly 7 can all move to the left relative to the left operating rod 4, even though the right ball 42 is still capturing the right operating rod 5 in place.
  • the left shift pins 75 are pushed up the sloping left walls of the left pin seats 32 by the right walls of the through slots 74 in the left wings 73, until the shift assembly 7 is completely disengaged from the fixed guides 3.
  • the assembly made of the operating rods 4, 5, the transverse bar 9, and the switch points Al , A2, is also then captured relative to the fixed plate 2 by the left ball 42.
  • the right shift pins 75 have aligned with, and dropped into, the right pin seats 32 in the fixed guides 3.
  • the right ball 42 has completed its displacement along the right ball slot 62, and it now abuts the right wall of the right ball slot 62. This abutment of the right ball 42 with the right wall of the right ball slot 62 has stopped the leftward movement of the skate 6 and the shift assembly 7 relative to the fixed plate 2.
  • control rod 8 and the forks 81 , 83 have continued to move leftward until the right shift pins 75 are captured within the right pin seats 32 of the fixed guides 3 by the right fork 81 , securely latching or capturing the shift assembly 7 and the skate 6 relative to the fixed guides 3. Further, the right end stroke stabilizing pin 66 has dropped partially into the groove 82 on top of the fork 81 , stabilizing the control rod 8 relative to the skate 6. This locks and latches the switch machine at the full left end of its stroke.
  • the control rod 8 is not affected by possible loads which may be exerted on the detached right switch point A2. Such loads are transmitted to the switch point Al via the transverse bar 9, and to the operating rod 4, and they are then absorbed by the plate 2, to which the left operating rod 4 is captured. Furthermore, since the right fork 81 captures the right shift pins 75 in the right pin seats 32, this prevents accidental shifting of the switch machine, which could be caused, for example, by vibrations.
  • Shifting of the mechanism back to the right is accomplished in a similar fashion to the leftward shifting.
  • Electrical sensors incorporated in locations in the mechanism such as the forks 81 , 83 act to monitor the correct or incorrect positioning of the mechanism at the right and left end points of its stroke. That is, as can readily be seen from Figure 2, an electrical sensor in the left fork 83 senses attainment of its rightmost position relative to the left operating rod 4, at the right end point of the stroke of the switch machine. Similarly, an electrical sensor in the right fork 81 senses attainment of its leftmost position relative to the right operating rod 5, at the left end point of the stroke of the switch machine.
  • These sensors may be any suitable sensor such as shown for example in U. S. Patent No. 6,149,106 and may be engageable with the forks 81 , 83 and the operating rods 4, 5. Alternatively, the sensors may be mounted elsewhere within the switch machine so as to sense the position of one element relative to another element within the switch machine.
  • an obstacle between the left switch point Al and the left stock rail CI can prevent the full displacement of the switch point Al to abut the left stock rail CI .
  • the obstacle causes the switch point Al to stop advancing, and the displacement of the control rod 8 can not reach the predetermined end-stroke point.
  • a sensor in the right fork 81 will readily indicate that the control rod 8 has not reached the end of its stroke relative to the operating rods 4, 5, so that this type of irregular condition is made evident.
  • This irregular functioning may then be communicated to associated wayside signalling equipment or remotely to a data center communicating with the switch.
  • a second type of irregular functioning can be caused by the absence of the stroke rail CI in the correct position.
  • the displacement of the switch point Al is not opposed by the stock rail CI ; therefore, the left side of the left through hole 41 never offers sufficient resistance to the movement of the left ball 42 to cause the left ball 42 to react against the sloped wall of the left ball slot 61 and move upwardly, compressing the spring 22 and entering the left ball seat 24. Therefore, the skate 6 is not released from its engagement with the left operating rod 4, and the operating rods 4, 5 continue to move to the left with the control rod 8.
  • a sensor in the right fork 81 will readily indicate that the control rod 8 has not reached the end of its stroke relative to the operating rods 4, 5, so that this type of irregular condition is made evident. Such event is then communicated to other wayside equipment or a remote data center.
  • Figures 6 through 12 illustrate connectors, according to the present invention, for the switch machine.
  • Figure 6 shows a side elevation view of a switch machine incorporating this modification, with the switch machine housing 1 itself being shown in section, to show the location of a bearing 102 and a seal 104 on each operating rod 4, 5.
  • the bearing 102 aligns the operating rod 4, 5 to move along a line of action on the axis of the internal mechanism of the switch machine, while the seal 104 seals out water and other contaminants which could cause deterioration or even malfunctioning of the switch machine.
  • a socket 106 is provided at the outer end of each operating rod 4, 5.
  • Each operating rod socket 106 is pivotably connected to its associated switch point Al , A2, by a yoke 1 12, a pivot pin 108, and a mounting clip 1 10.
  • each switch point Al , A2 along with the respective section of rail to which it is attached pivots around an axis, such as the axis 200 shown in Figure 7A when the switch point is moved.
  • the pivot radius of the rail is relatively large compared to the dimensions of the other elements shown in Figure 6, and thus the location of the axis 200 is not shown to scale.
  • the angle 140 will change slightly. That is, for example, if the operating rod 5 moves to the right, the angle 140 between the operating rod 5 and the switch point A2 will increase slightly.
  • the socket 106, the yoke 1 12, and the pivot pin 108 have features which allow the switch point A2 to pivot freely relative to the operating rod 5, without imposing a reactive pivoting force on the operating rod 5.
  • the same arrangement is provided at the connection between the operating rod 4 and its associated switch point Al .
  • the operating rod socket 106 has a vertical bore 1 18 therethrough, with the bore 1 18 being centered on a vertical axis 120.
  • a clevis pin hole 124 can be provided laterally through the socket 106, and transversely through the socket bore 1 18, for use with some embodiments, as discussed below.
  • the yoke 1 12 has a vertical shaft 1 16, which is positionable in the socket bore 1 18, centered on the vertical axis 120. If not pinned to the socket 106, the yoke 1 12 can pivot about the vertical axis 120 of the vertical shaft 1 16, relative to the vertical bore 1 18 of the socket 106.
  • the pivot pin 108 is rigidly mounted to the switch point by means of the mounting clip 1 10, with the longitudinal axis 122 of the pivot pin 108 being oriented horizontally and substantially parallel to the axis of the switch point.
  • the yoke 1 12 is slidingly attached to the pivot pin 108, by means of a collar 1 14 at the top of the vertical shaft 1 16 of the yoke 1 12. That is, the collar 1 14 at the top of the yoke 1 12 has a horizontal bore into which the pivot pin 108 is received, and the collar 1 14 is free to slide along the pivot pin 108.
  • the yoke 1 12 has a vertical shaft 1 16, at the top of which is mounted a pivoting collar 1 14.
  • the collar 1 14 pivots about the vertical axis 120, relative to the vertical shaft 1 16 via a vertical pivot pin (not shown), or alternatively, it could be fixedly mounted to the vertical shaft 1 16, in which case the collar 1 14 pivots with the shaft 1 16.
  • a horizontal bore 126 is provided through the collar 1 14, with the collar bore 126 being centered on the horizontal axis 122 of the pivot pin 108. It can be seen that, as the collar 1 14 pivots, the horizontal axis 122 of the collar bore 126 pivots about the vertical axis 120 of the vertical shaft 1 16.
  • the yoke 1 12 has a vertical shaft 1 16 and a collar 1 14, as before.
  • the collar 1 14 has an inner collar member 128 and an outer collar member 132, as shown in Figures 1 1 and 12.
  • the collar bore 126 in this instance passes through the inner collar member 128.
  • the inner collar member 128 can be a truncated spherical member as shown, positioned in a spherical cavity 134 within the outer collar member 132. It will be seen that this allows the inner collar member 128 to pivot relative to the outer collar member 132, with the result that the horizontal axis 122 of the collar bore 126 pivots about the vertical axis 120. In fact, pivoting of the collar bore 126 relative to the outer collar member 132 can also have a vertical component as well as a horizontal component. If the plane of the switch point movement is not exactly orthogonal to the vertical axis 120, this vertical component of the pivoting of the collar bore 126 can be important to further prevent binding of the operating rods 4, 5. In this embodiment, as before, the outer collar member 132 may be fixedly attached to the vertical shaft 1 16, or it may be allowed to pivot relative thereto.
  • the yoke 1 12 is adapted to allow the axis 122 of the collar bore 126 to pivot about the vertical axis 120, in a substantially horizontal plane. This can be accomplished by allowing the vertical shaft 1 16 to pivot in the socket bore 1 18, by allowing the collar 1 14 to pivot relative to the vertical shaft 1 16, by allowing an inner collar member 128 to pivot relative to an outer collar member 132, or by any combination of these three mechanisms. Where some portion of the collar 1 14 is adapted to pivot relative to the vertical shaft 1 16, the vertical shaft 1 16 can be retained to the operating rod socket 1 18, by a retainer pin placed in the clevis pin hole 130. Where pivoting is accomplished by allowing the shaft 1 16 to pivot relative to the socket 106, the clevis pin hole 130 may not be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Nonwoven Fabrics (AREA)
  • Seats For Vehicles (AREA)
  • Mechanical Control Devices (AREA)
  • Switches With Compound Operations (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

La présente invention se rapporte à un appareil de commande électrique d'aiguillage conçu pour un aiguillage ferroviaire et comportant deux points d'aiguillage, incluant deux tringles de manoeuvre s'étendant d'un logement jusqu'aux points d'aiguillage; un corps de ripage situé dans le logement, capable de coulisser par rapport audit logement de manière à déplacer simultanément les tringles de manoeuvre; un dispositif d'accouplement situé à l'intérieur du logement et conçu pour accoupler sélectivement les tringles de manoeuvre au logement au niveau des deux points de course terminaux; et un connecteur de pivotement disposé entre chaque tringle de manoeuvre et son point d'aiguillage associé.
PCT/US2005/002513 2004-02-17 2005-01-26 Appareil de commande electrique d'aiguillage comportant des connecteurs de points d'aiguillage perfectionnes WO2005083177A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2005217383A AU2005217383B2 (en) 2004-02-17 2005-01-26 Switch machine with switch point connectors
CA2555727A CA2555727C (fr) 2004-02-17 2005-01-26 Appareil de commande electrique d'aiguillage comportant des connecteurs de points d'aiguillage perfectionnes
DE602005003796T DE602005003796T2 (de) 2004-02-17 2005-01-26 Drehbare Verbinderanordnung für eine Eisenbahnweiche
EP05712112A EP1718803B1 (fr) 2004-02-17 2005-01-26 Ensemble avec un connecteur rotatif pour une aiguille de chemin de fer
BRPI0506612A BRPI0506612B1 (pt) 2004-02-17 2005-01-26 conjunto conector de chave ferroviária
CN2005800050599A CN1918340B (zh) 2004-02-17 2005-01-26 带有转辙点连接器的转辙机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/780,116 2004-02-17
US10/780,116 US20050178929A1 (en) 2004-02-17 2004-02-17 Switch machine with improved switch point connectors

Publications (1)

Publication Number Publication Date
WO2005083177A1 true WO2005083177A1 (fr) 2005-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/002513 WO2005083177A1 (fr) 2004-02-17 2005-01-26 Appareil de commande electrique d'aiguillage comportant des connecteurs de points d'aiguillage perfectionnes

Country Status (10)

Country Link
US (1) US20050178929A1 (fr)
EP (2) EP1718803B1 (fr)
CN (2) CN102139703A (fr)
AU (1) AU2005217383B2 (fr)
BR (1) BRPI0506612B1 (fr)
CA (1) CA2555727C (fr)
DE (1) DE602005003796T2 (fr)
RU (1) RU2358057C2 (fr)
WO (1) WO2005083177A1 (fr)
ZA (1) ZA200607346B (fr)

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ES2495090A1 (es) * 2013-03-15 2014-09-16 Talleres Alegría S.A. Dispositivo de retención para elementos móviles en aparatos ferroviarios
JP2016053758A (ja) * 2014-09-02 2016-04-14 村田機械株式会社 走行車システム
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US9932054B2 (en) * 2016-02-19 2018-04-03 Progress Rail Services Corporation Double point derail switch
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FR1279988A (fr) * 1960-11-04 1961-12-29 S N C Grandi Antonio Di Dante Joint d'articulation sphérique pour installations ferroviaires
US5195703A (en) * 1990-05-04 1993-03-23 Bwg Butzbacher Weichenbau Gmbh Device for locking a switch blade with a stock rail
EP0467865A1 (fr) * 1990-07-19 1992-01-22 ANGIOLO SILIANI S.p.A Dispositif d'actionnement des aiguilles mobiles d'un aiguillage ferroviaire
EP0480303A2 (fr) * 1990-10-10 1992-04-15 SASIB S.p.A. Dispositif de commande pour aiguillages de voies ferrées, en particulier pour lignes à grande vitesse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007067234A1 (fr) * 2005-12-07 2007-06-14 General Electric Company Systeme pour ensemble d’aiguille sans lubrifiant
US7686258B2 (en) 2005-12-07 2010-03-30 General Electric Company System for a greaseless switch assembly
AU2006323209B2 (en) * 2005-12-07 2012-04-05 General Electric Company A system for a greaseless switch assembly

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EP1718803B1 (fr) 2007-12-12
EP1832680A3 (fr) 2007-09-26
EP1718803A1 (fr) 2006-11-08
AU2005217383B2 (en) 2010-12-23
BRPI0506612A (pt) 2007-05-02
DE602005003796D1 (de) 2008-01-24
BRPI0506612B1 (pt) 2016-09-27
US20050178929A1 (en) 2005-08-18
CN102139703A (zh) 2011-08-03
RU2006133314A (ru) 2008-03-27
DE602005003796T2 (de) 2008-11-27
ZA200607346B (en) 2008-04-30
CN1918340B (zh) 2011-04-06
EP1832680B1 (fr) 2015-12-30
CA2555727A1 (fr) 2005-09-09
CN1918340A (zh) 2007-02-21
AU2005217383A1 (en) 2005-09-09
EP1832680A2 (fr) 2007-09-12
RU2358057C2 (ru) 2009-06-10
CA2555727C (fr) 2013-03-12

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