MECHANISM AND METHOD FOR SWITCHING RAILCARS USING A STATIC RAIL-TRACK CONFIGURATION

Description

BACKGROUND

Technical Field

[0001] The present invention relates to a track switching mechanism for railroad vehicles and a method for enabling railroad vehicles to switch tracks.

Description of the Related Art

[0002] Railroad carriages have been a popular means of transportation for more than a century. Most countries in the world possess a network of railway lines crisscrossing their lands. The mechanism of switching tracks of a railroad vehicle is one of the most important aspects of railroad travel, as this is the core for enabling the travel of a railroad vehicle in a desired direction.

[0003] US 8 950 337 B1 discloses a personal transportation system comprising an automated, elevated, single lane throughway comprising multigauge rail track.

[0004] Conventional rail switching systems use moving rails to switch direction of a railroad vehicle. These mechanisms, known as rail switches, are slow to reconfigure from one position to the other. To accommodate for the low switching speed, a large distance is maintained between a plurality of railroad vehicles travelling to different destinations. To compensate for the loss of throughput due to this separation, railcars are organized into long trains. The railcars have to be tough and heavy to have the strength to pull lengthy trains. Due to their massive weight, railroads cause an extraordinary wear on the tracks, resulting in expensive construction and maintenance costs. Moreover, most of the wear and resulting maintenance cost is spent on the moving switches. A lack of proper maintenance often results in accidents.

[0005] To alleviate the above problems, there's a need for railcars to have onboard apparatus and mechanism to switch on otherwise passive rail tracks. Currently available onboard switching mechanisms employ very complex design with complex choreography of the apparatus requiring expensive control systems. This makes the overall system slow and accident prone.

[0006] Hence, there is a need for an uncomplicated onboard mechanism for enabling a railroad vehicle to switch tracks.

[0007] The above-mentioned shortcomings, disadvantages and problems are addressed herein and which will be understood by reading and studying the following specification.

[0008] The present invention is defined by the features of the independent claims.The features of the dependent claims define preferred embodiments of the invention.The embodiments described in the following are therefore not necessarily preferred embodiments of the invention.

OBJECTIVES OF THE EMBODIMENTS

[0009] The primary objective of the embodiments herein is to provide a mechanism for switching tracks of a railroad vehicle.

[0010] Another object of the embodiments herein is to provide a system and method for enabling a railroad vehicle to switch tracks using no moving component on the rails or tracks.

[0011] Another object of the embodiments herein is to provide a system and method for enabling a railroad vehicle to switch tracks using no active component on the rails or tracks.

[0012] Yet another object of the embodiments herein is to provide a track-switching mechanism for a railroad vehicle, where the switching of tracks is enabled through specially designed switching tracks.

[0013] Yet another object of the embodiments herein is to provide a track-switching mechanism for a railroad vehicle, where the switching mechanism is controlled by onboard systems in the railroad vehicle.

[0014] Yet another object of the embodiments herein is to provide a track-switching mechanism for a railroad vehicle, where the switching mechanism comprises a one or more switching wheels to enable the switching of tracks.

[0015] These and other objects and advantages of the embodiments herein will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.

SUMMARY

[0016] The various embodiments herein provide a mechanism for switching tracks of a railroad vehicle. The various embodiments also provide a system and method for enabling a railroad vehicle to switch tracks using only static components in the rails.

[0017] According to one embodiment described herein, a track switching mechanism for a transportation system is disclosed. The track switching mechanism comprises a running track that supports an automotive, a switching track comprising a set of static components and a switching mechanism installed in at least one carriage of the automotive, the on-board switching configured for controlling the movement of a one or more switching wheels such that when activated the switching mechanism is configured to facilitate engagement of the switching wheels with the switching track for carrying out a track changing operation for the automotive.

[0018] According to another embodiment herein, a system for enabling a railroad vehicle to switch tracks is disclosed. The system comprises a switching track comprising a set of static components and a switching mechanism installed in at least one rail coach, the switching mechanism configured for controlling the movement of one or more switching wheels such that when activated the switching mechanism is configured to facilitate engagement of the one or more switching wheels with the switching track for carrying out a track changing operation for the railroad vehicle.

[0019] According to another embodiment herein, a method for enabling a railroad vehicle to switch tracks is disclosed. The method comprises steps of providing a switching track comprising a set of static components, coupling a one or more switching wheels to at least one rail coach, the set of switching wheels arranged to run along the switching track, installing a switching mechanism in each rail coach of the railroad vehicle, the switching mechanism configured for controlling the movement of the switching wheels and optionally activating the switching mechanism so as facilitate engagement of the switching wheels with the switching track for carrying out a track changing operation for the railroad vehicle by disengaging the railroad vehicle from a first running track and engaging the railroad vehicle with a second running track.

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 

FIG. 1 illustrates an arrangement of running track and switching track with different gauges tor enabling trade switching for a railroad vehicle, according to an embodiment herein.

FIG. 2 illustrates an embodiment of trade switching for a railroad vehicle using tracks of different gauges, according to an embodiment herein.

FIG. 3 illustrates a top view of a junction point for switching of a railroad vehicle from one track to another, according to an embodiment herein.

FIG.4a illustrates a bottom view of a railroad vehicle enabled with running wheels and switching wheels, according to an embodiment herein.

FIG. 4b and FIG.4c illustrate a side view of a railroad vehicle enabled with running wheels and switching wheels, according to an embodiment herein.

FIG. 5 illustrates an arrangement of running track and switching track for enabling track switching for a railroad vehicle, according to an embodiment herein.

FIG. 6 illustrates a track switching for a railroad vehicle, enabled by an embodiment herein.

DETAILED DESCRIPTION OF THE DRAWINGS

[0021] The various embodiments herein provide a mechanism for switching tracks of a railroad vehicle. The various embodiments also provide a system and method for enabling a railroad vehicle to switch tracks using only static components in the rails.

[0022] According to one embodiment herein, a system and method for enabling a railroad vehicle to switch tracks is provided. The system comprises a dual guide way system. Both guide-ways are fixed and passive physically, mechanically, and electromagnetically. A first guide system, a running track, comprises a traditional parallel-rail system. The railroad vehicle generally travels on the network of running tracks. A second guide system, a switching track, is an arrangement that is placed only near the switching points on the track network, that is, at end points in the track network or at points where two tracks intersect. The switching track comprises a separate mono-rail or a parallel-rail system. Apparatus onboard the railroad vehicle can be activated to engage with the switching track or not depending on the intended destination of the vehicle. Once engaged, the switching track enacts the track changing mechanism for the railroad vehicle by smoothly separating the railroad vehicle from one running track and placing it onto another running track..

[0023] According to one embodiment herein, a mechanism for enabling a railroad vehicle to switch tracks is provided. According to the present mechanism, the switching track is elevated above the running tracks and above the railroad vehicle running on it. When the railroad vehicle approaches a switching point and intends to switch tracks, a one or more switching wheels in the railroad vehicle are activated to engage with the switching track. When the switching track and switching wheels are engaged, the railroad vehicle becomes suspended vertically down from the switching track. The switching track is designed to guide the railroad vehicle onto a second running track and place the railroad vehicle on the second running track. When the railroad vehicle approaches a switching point and intends to not switch tracks, the switching wheels are not activated and the railroad vehicle continues to travel on the same running track.

[0024] According to one embodiment herein, yet another mechanism for enabling a railroad vehicle to switch tracks is provided. According to the present mechanism, the switching track is at the same level as the running track. The gauge of the switching track and the running track are different. The switching track can be narrower or broader than the running track. At the bifurcation switching point, the switching track and the running track run in parallel for some distance before the switching point and diverge beyond the switching point. At the merging switching point, the switching track and running track run parallel to each other for some distance beyond the switching point. When the railroad vehicle approaches a switching point and intends to switch tracks, onboard apparatus including a one or more switching wheels is activated in the railroad vehicle. The switching wheels, when activated, are designed to get engaged to the switching track. When the switching track and switching wheels are engaged, the railroad vehicle is designed to disengage the primary running wheels from the running track. The switching track is designed to guide the railroad vehicle to a second running track and place the railroad vehicle on the second running track. When the railroad vehicle approaches a switching point and intends to not switch tracks, the switching wheels are not activated and the railroad vehicle continues to travel on the same running track.

[0025] According to one embodiment herein, yet another mechanism for enabling a railroad vehicle to switch tracks is provided. According to the present mechanism, the switching track starts at the same level as the running track and slowly rises to a height where vehicles running on the running track can pass under the switching track. The gauge of the switching track is broader than the running track. At the bifurcation switching point, the switching track and the running track run in parallel for some distance before the switching point and diverge beyond the switching point. At the merging switching point, the switching track and running track run parallel to each other for some distance beyond the switching point. When the railroad vehicle approaches a switching point and intends to switch tracks, onboard apparatus including a one or more switching wheels is activated in the railroad vehicle. The switching wheels, when activated, are designed to get engaged to the switching track. When the switching track and switching wheels are engaged, the railroad vehicle is designed to disengage the primary running wheels from the running track. The switching track is designed to guide the railroad vehicle to a second running track and place the railroad vehicle on the second running track. When the railroad vehicle approaches a switching point and intends to not switch tracks, the switching wheels are not activated and the railroad vehicle continues to travel on the same running track.

[0026] FIG. 1 illustrates an arrangement of running track and switching track with different gauges for enabling track switching for a railroad vehicle. The system comprises a static switch with a dual guide system. Both guides are fixed mechanically and passive electromagnetically. A first guide system, a running track 101, comprises a traditional parallel-rail system. The railroad vehicle generally travels on the running track. A second guide system, a switching track 102, is an arrangement that is placed only near the switching points on the track network. The switching track 102 comprises a parallel-rail system at a gauge different than the running track.

[0027] FIG. 2 illustrates an embodiment of track switching for a railroad vehicle using tracks of different gauges. The switching track 102 acts as the track changing mechanism for the railroad vehicle by smoothly moving the railroad vehicle from one running track 101 to another running track 103.

[0028] FIG. 3 illustrates a top view of a junction point for switching of a railroad vehicle from one track to another. The present embodiment acts as a building block for a network of rails.

[0029] FIG. 4a illustrates a bottom view of a railroad vehicle enabled with running wheels and switching wheels, according to an embodiment herein. Each wagon of railroad vehicle is fitted with sets of running wheels 401 and switching wheels 402,

[0030] FIG. 4b and FIG. 4c illustrate a side view of a railroad vehicle enabled with running wheels and switching wheels, according to an embodiment herein. The running wheels have a fixed height relative to the rail car. The switching wheels are protracted or retracted depending on whether the railcar intends to switch tracks or not switch tracks.

[0031] FIG. 5 illustrates an arrangement of running track and switching track for enabling track switching for a railroad vehicle, according to an embodiment herein. The system comprises a static switch with a dual guide system. Both guides are fixed through mechanical, physical or passive electromagnetic coupling. A first guide system, a running track 501, comprises a traditional parallel-rail system. The railroad vehicle travels on the running track. A second guide system, a switching track 502, is an arrangement that is placed only near the switching points on the running track. The switching track 502 comprises a mono-rail or a parallel-rail system, where the switching track is elevated as compared to the running track 501. The switching track 502 acts as the track changing mechanism for the railroad vehicle by smoothly moving the railroad vehicle from one running track 501 to another running track. The switching mechanism is activated by user in the railroad vehicle when a switching is necessary.

[0032] FIG. 6 illustrates a track switching for a railroad vehicle, enabled by an embodiment herein. The system comprises a running track 501, a switching track 502 and a railroad vehicle 601. The railroad vehicle 201 is equipped with running wheels 603a, 603b and switching wheels 604a, 604b. According to the present mechanism, the switching track 502 is elevated above the running tracks 501 and the railroad vehicle 601 running on it. When the railroad vehicle 601 approaches a switching point and intends to switch tracks, a user in the railroad vehicle is enabled to activate a one or more switching wheels 604a, 604b in the railroad vehicle 601. The switching wheels 604a, 604b are designed to get engaged to the switching track 502 when the switching wheels 604a, 604b are activated. When the switching track 502 and switching wheels 604a, 604b are engaged, the railroad vehicle 601 is suspended vertically from the switching track 502. The switching track 502 is designed to guide the railroad vehicle 601 to a second running track and place the railroad vehicle on the second running track. When the railroad vehicle 601 approaches a switching point and intends to not switch tracks, the switching wheels 604a, 604b are not activated and the railroad vehicle 601 continues to travel on the same running track.

[0033] According to another embodiment herein, a method for enabling a railroad vehicle to switch tracks is disclosed. The method comprises steps of providing a switching track comprising a set of static components, coupling a one or more switching wheels to at least one rail coach, the set of switching wheels arranged to run along the switching track, installing a switching mechanism in each rail coach of the railroad vehicle, the switching mechanism configured for controlling the movement of the switching wheels and optionally activating the switching mechanism so as facilitate engagement of the switching wheels with the switching track for carrying out a track changing operation for the railroad vehicle by disengaging the railroad vehicle from a first running track and engaging the railroad vehicle with a second running track.

Claims

1. A track switching mechanism for a transportation system, the track switching mechanism comprising:

a running track (101, 103, 501) that supports a railroad vehicle (601, 201)

a switching track (102, 502) comprising a set of static components;

a switching mechanism installed on the railroad vehicle (601, 201), and wherein the switching mechanism is configured for controlling a movement of one or more switching wheels (402, 604a, 604b) provided in the railroad vehicle (601, 201), and wherein the switching mechanism is configured to facilitate engagement of the one or more switching wheels (402, 604a, 604b) with the switching track (102, 502) for carrying out a track changing operation for the railroad vehicle (601, 201), when the switching mechanism is activated,

characterized in that:
wherein the switching track (102, 502) comprises a parallel-rail system, and wherein the switching track (102, 502) is positioned below the level of the running track (101, 103, 501) and the gauge of the switching track (102, 502) is same as the gauge of the running track (101, 103, 501).

2. The track switching mechanism according to claim 1, wherein the switching mechanism is configured to be optionally engaged depending on a desired destination of the railroad vehicle (601, 201).

3. The track switching mechanism according to claim 1 or 2, wherein the switching track (102, 502) is at the level of the running track (101, 103, 501) at an initial stage and elevates gradually to a level so as to enable a vehicle moving on the running track (101, 103, 501) to pass under the switching track (102, 502).

4. The track switching mechanism according to one of the preceding claims, wherein the railroad vehicle (601, 201) further comprises a set of running wheels (401, 603a, 603b) configured to be engaged with the running track (101, 103, 501).

5. The track switching mechanism according to one of the preceding claims, wherein the switching mechanism is configured to disengage the running wheels (401, 603a, 603b) subsequent to the engagement of the one or more switching wheels (402, 604a, 604b) with the switching track (102, 502).

6. A method for enabling a railroad vehicle (601, 201) to switch tracks, the method comprising:

providing a running track (101, 103, 501) that supports the railroad vehicle (601, 201);

providing a switching track (102, 502) comprising a set of static components;

coupling one or more switching wheels (402, 604a, 604b) to at least one rail coach, the one or more switching wheels (402, 604a, 604b) arranged to run along the switching track (102, 502);

installing a switching mechanism in the at least one rail coach of the railroad vehicle (601, 201), the switching mechanism configured for controlling the movement of the one or more switching wheels (402, 604a, 604b);

optionally activating the switching mechanism so as to facilitate engagement of the one or more switching wheels (402, 604a, 604b) with the switching track (102, 502) for carrying out a track changing operation for the railroad vehicle (601, 201) by disengaging the railroad vehicle (601, 201) from a first running track (101, 103, 501) and engaging the railroad vehicle (601, 201) with a second running track (101, 103, 501), wherein activating the switching mechanism further comprises disengaging the running wheels (401, 603a, 603b) subsequent to the engagement of the one or more switching wheels (402, 604a, 604b) with the switching track (102, 502); and

wherein the switching track (102, 502) comprises a parallel-rail system and wherein the switching track (102, 502) is positioned below the level of the running track (101, 103, 501) and the gauge of the switching track (102, 502) is same as the gauge of the running track (101, 103, 501).

7. The method according to claim 6, wherein each rail coach of the railroad vehicle (601, 201) further comprises a set of running wheels (401, 603a, 603b) configured to be engaged with the running track (101, 103, 501).

Ansprüche

1. Ein Gleisrangiermechanismus für ein Transportsystem, wobei der Gleisrangiermechanismus umfasst:

ein Fahrgleis (101, 103, 501), das ein Schienenfahrzeug (601, 201) trägt;

ein Weichengleis (102, 502), die einen Satz statischer Komponenten umfasst;

einen an dem Schienenfahrzeug (601, 201) installierten Weichenmechanismus, wobei der Weichenmechanismus zum Steuern konfiguriert ist, um eine Bewegung eines oder mehrerer Weichenräder (402, 604a, 604b) zu steuern, die an dem Schienenfahrzeug (601, 201) vorgesehen sind, und wobei der Weichenmechanismus konfiguriert ist, um das Eingreifen des einen oder der mehreren Weichenräder (402, 604a, 604b) in das Weichengleis (102, 502) zu erleichtern, um einen Gleiswechselvorgang für das Schienenfahrzeug (601, 201) durchzuführen, wenn der Weichenmechanismus aktiviert wird,

wobei das Weichengleis (102, 502) ein Parallelschienensystem umfasst und wobei das Weichengleis (102, 502) unterhalb des Niveaus des Fahrgleises (101, 103, 501) angeordnet ist und die Spurweite des Weichengleises (102, 502) mit der Spurweite des Fahrgleises (101, 103, 501) übereinstimmt.

2. Der Gleisrangiermechanismus gemäß Anspruch 1, wobei der Weichenmechanismus konfiguriert ist, dass er je nach gewünschtem Zielort des Schienenfahrzeugs (601, 201) wahlweise in Eingriff gebracht werden kann.

3. Der Gleisrangiermechanismus gemäß Anspruch 1 oder 2, wobei sich das Weichengleis (102, 502) in einer ersten Phase auf Höhe des Fahrgleises (101, 103, 501) und allmählich auf eine Höhe anhebt, die es einem auf dem Fahrgleis (101, 103, 501) fahrenden Schienenfahrzeug (601, 201) ermöglicht, unter dem Weichengleis (102, 502) hindurchzufahren.

4. Der Gleisrangiermechanismus gemäß einem der vorangehenden Ansprüche, wobei das Schienenfahrzeug (601, 201) ferner einen Satz Laufräder (401, 603a, 603b) umfasst, die so konfiguriert sind, dass sie mit dem Fahrgleis (101, 103, 501) in Eingriff kommen.

5. Der Gleisrangiermechanismus gemäß einem der vorangehenden Ansprüche, wobei der Weichenmechanismus konfiguriert ist, dass er die Laufräder (401, 603a, 603b) nach dem Eingriff des einen oder der mehreren Weichenräder (402, 604a, 604b) mit dem Weichengleis (102, 502) aus dem Eingriff löst.

6. Verfahren zum Befähigen eines Schienenfahrzeugs (601, 201), Gleise zu wechseln, wobei das Verfahren umfasst:

Bereitstellen eines Fahrgleises (101, 103, 501), das das Schienenfahrzeug (601, 201) trägt;

Bereitstellen eines Weichengleises (102, 502), die einen Satz statischer Komponenten umfasst;

Koppeln eines oder mehrerer Weichenräder (402, 604a, 604b) mit mindestens einem Schienenfahrzeug, wobei das eine oder die mehreren Weichenräder (402, 604a, 604b) so angeordnet sind, dass sie entlang des Weichengleises (102, 502) laufen;

Installieren eines Weichenmechanismus in dem mindestens einen Schienenwagen des Schienenfahrzeugs (601, 201), wobei der Weichenmechanismus so konfiguriert ist, dass er die Bewegung des einen oder der mehreren Weichenräder (402, 604a, 604b) steuert;

optionales Aktivieren des Weichenmechanismus, um das Eingreifen des einen oder der mehreren Weichenräder (402, 604a, 604b) in die Weichengleise (102, 502) zu erleichtern, um einen Gleiswechselvorgang für das Schienenfahrzeug (601, 201) durchzuführen, indem das Schienenfahrzeug (601, 201) von einem ersten Fahrgleis (101, 103, 501) aus dem Eingriff gelöst wird und das Schienenfahrzeug (601, 201) in ein zweites Fahrgleis (101, 103, 501) in Eingriff gebracht wird, wobei das Aktivieren des Weichenmechanismus ferner das Lösen der Laufräder (401, 603a, 603b) aus dem Eingriff nach dem Eingreifen des einen oder der mehreren Weichenräder (402, 604a, 604b) in das Weichengleis (102, 502) umfasst; und

wobei das Weichengleis (102, 502) ein Parallelschienensystem umfasst und wobei das Weichengleis (102, 502) unterhalb des Niveaus des Fahrgleises (101, 103, 501) angeordnet ist und die Spurweite des Weichengleises (102, 502) mit der Spurweite des Fahrgleises (101, 103, 501) übereinstimmt.

7. Verfahren nach Anspruch 6, wobei jeder Schienenwagen des Schienenfahrzeugs (601, 201) ferner einen Satz Laufräder (401, 603a, 603b) umfasst, die konfiguriert sind, um mit dem Fahrgleis (101, 103, 501) in Eingriff kommen.

Revendications

1. Un mécanisme de changement de voie pour un système de transport, le mécanisme de changement de voie comprenant :

une voie de roulement (101, 103, 501) qui supporte un véhicule ferroviaire (601, 201) ;

une voie de changement (102, 502) comprenant un ensemble de composants statiques ;

un mécanisme de changement installé sur le véhicule ferroviaire (601, 201) , ledit mécanisme de changement étant configuré pour contrôler le mouvement d'une ou de plusieurs roues de changement (402, 604a, 604b) prévues sur le véhicule ferroviaire (601, 201) , et ledit mécanisme de changement étant configuré pour permettre l'engagement de une ou de plusieurs roues de changement (402, 604a, 604b) avec la voie de changement (102, 502) afin d'effectuer une opération de changement de voie pour le véhicule ferroviaire (601, 201) lorsque le mécanisme de changement est activé,

caractérisé en ce que :
la voie de changement (102, 502) comprend un système à rails parallèles, et en ce que la voie de changement (102, 502) est positionnée en dessous du niveau de la voie de roulement (101, 103, 501), et l'écartement de la voie de changement (102, 502) est identique à l'écartement de la voie de roulement (101, 103, 501).

2. Le mécanisme de changement de voie selon la revendication 1, dans lequel le mécanisme de changement est configuré pour être activé de manière optionnelle en fonction de la destination souhaitée du véhicule ferroviaire (601, 201).

3. Le mécanisme de changement de voie selon la revendication 1 ou 2, dans lequel la voie de changement (102, 502) se trouve au niveau de la voie de roulement (101, 103, 501) à un stade initial et s'élève progressivement jusqu'à un niveau permettant à un véhicule se déplaçant sur la voie de roulement (101, 103, 501) de passer sous la voie de changement (102, 502).

4. Le mécanisme de changement de voie selon l'une des revendications précédentes, dans lequel le véhicule ferroviaire (601, 201) comprend en outre un ensemble de roues de roulement (401, 603a, 603b) configurées pour être engagées avec la voie de roulement (101, 103, 501).

5. Le mécanisme de changement de voie selon l'une des revendications précédentes, dans lequel le mécanisme de changement est configuré pour désengager les roues de roulement (401, 603a, 603b) après l'engagement d'une ou de plusieurs roues de changement (402, 604a, 604b) avec la voie de changement (102, 502).

6. Un procédé permettant à un véhicule ferroviaire (601, 201) de changer de voie, ledit procédé comprenant :

la fourniture d'une voie de roulement (101, 103, 501) supportant le véhicule ferroviaire (601, 201) ;

la fourniture d'une voie de changement (102, 502) comprenant un ensemble de composants statiques ;

le couplage d'une ou de plusieurs roues de changement (402, 604a, 604b) à au moins un wagon, lesdites roues de changement (402, 604a, 604b) étant agencées pour circuler le long de la voie de changement (102, 502) ;

l'installation d'un mécanisme de changement dans au moins un wagon du véhicule ferroviaire (601, 201), ledit mécanisme de changement étant configuré pour contrôler le mouvement de ladite ou desdites roues de changement (402, 604a, 604b) ;

l'activation optionnelle du mécanisme de changement afin de permettre l'engagement de ladite ou desdites roues de changement (402, 604a, 604b) avec la voie de changement (102, 502) pour effectuer une opération de changement de voie du véhicule ferroviaire (601, 201) en désengageant le véhicule ferroviaire (601, 201) d'une première voie de roulement (101, 103, 501) et en engageant le véhicule ferroviaire (601, 201) sur une seconde voie de roulement (101, 103, 501), l'activation du mécanisme de changement comprenant en outre le désengagement des roues de roulement (401, 603a, 603b) après l'engagement de ladite ou desdites roues de changement (402, 604a, 604b) avec la voie de changement (102, 502) ; et

la voie de changement (102, 502) comprenant un système à rails parallèles et

la voie de changement (102, 502) étant positionnée en dessous du niveau de la voie de roulement (101, 103, 501), et l'écartement de la voie de changement (102, 502) étant identique à celui de la voie de roulement (101, 103, 501).

7. Le procédé selon la revendication 6, dans lequel chaque wagon du véhicule ferroviaire (601, 201) comprend en outre un ensemble de roues de roulement (401, 603a, 603b) configurées pour être engagées avec la voie de roulement (101, 103, 501).

Drawing