EP3892775A1 - Carriage for transferring sleepers and associated railway vehicle - Google Patents

Abstract

The invention relates to a sleeper transfer wagon (100) intended to equip a railway vehicle of the type comprising equipment for laying new sleepers (21) and / or removing worn sleepers (22), the transfer wagon (100). ) comprising a frame (110) supported by at least one set of wheels (112), the transfer wagon (100) being remarkable in that it comprises at least one transporter (50) supported by a frame (60), the 'frame (60) being supported by the frame (110) and fixed relative to the frame (110), the transporter (50) being configured to transfer the sleepers from at least one reception area (Z1, Z2) to at least a conveying platform (P2).

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates, in general, to the technical field of construction and renewal trains consisting in fitting the equipment necessary for the construction of railways or, in the case of renewal, in replacing all or part of the constituent materials of the tracks, namely the rails and sleepers, as well as the ballast which ensures the holding of the track on its platform, when these materials are degraded.

The invention relates more specifically to a sleeper transfer wagon intended to equip a railway vehicle such as an associated railway vehicle.

STATE OF THE PRIOR ART

The builders or operators of rail transport networks regularly need to build new railways or rebuild existing railways, that is to say to replace some of the elements that compose them such as rails and tracks. sleepers supporting the rails, as well as the fixing means and other accessories. Much of this need for renewal is due to age and wear of the tracks, but it may also involve replacing older models with newer models to provide better performance.

In the most complete case of renewal or construction, such operations are carried out using a rail convoy such as a so-called renewal or replacement train, respectively construction, comprising multiple specialized machines to perform the various operations of substitution, respectively of construction. A typical renewal operation involves specialized rail convoys comprising machines capable of performing the following operations in sequence: stripping, screening of the ballast and the removal of the stripping products, by conveyor belts on wagons intended for the discharge or by direct jet to the backfill, the replacement of the renewed track (rails and sleepers), the ballasting and the raising of the track, leveling and dressing, welding of rails, stress relief, new leveling-dressing, adjustment of bench seats and cleaning of shoulders.

Whether for construction or renewal, such a rail convoy includes several sleeper transport wagons, at least new and where appropriate old, to supply specialized machines such as equipment for laying new sleepers and possibly removal of worn sleepers.

It is known to equip such a set of wagons with a continuous running track for a gantry which, during its back-and-forth movements, picks up new sleepers from a first storage wagon, deposits them on a second wagon, in particular on a conveyor belt towards the laying equipment, and if necessary takes up on return worn sleepers accumulated on a third wagon, which may possibly correspond to the second wagon, and will deposit them on a fourth storage wagon which can possibly correspond to the first wagon.

The use of such a gantry is not without drawbacks. In particular, the back and forth of the gantry crane on its running track at relatively high speed along several wagons require special precautions and attention to avoid possible accidents to people near the train or on the train during operations. installation and removal of new and worn sleepers.

Moreover is illustrated in the document WO2019129678A1 a pallet transfer wagon between an upper conveyor located on an upper floor of the wagon and a lower conveyor located on a lower floor of the wagon, the two conveyors being superimposed and having opposite directions of movement. The transfer is carried out by an elevator having a purely vertical movement between a reception area upper located at the outlet of the upper conveyor, and a conveying platform located at the entrance of the lower conveyor, directly below the upper conveyor.

DISCLOSURE OF THE INVENTION

The invention aims to remedy all or part of the drawbacks of the state of the art by proposing in particular a solution making it possible to ensure the transfer of the sleepers while overcoming the drawbacks associated with the movement of this gantry along its path. bearing.

To do this is proposed, according to a first aspect of the invention, a sleeper transfer wagon intended to equip a railway vehicle such as a train or a train set, the transfer wagon comprising a frame supported by at least one train. wheels, and further comprising a group of one or more reception areas comprising at least one sleeper reception area and a group of one or more conveyor platforms comprising at least one sleeper conveying platform, the transfer wagon being remarkable in that it comprises at least one conveyor supported by a frame, the frame being supported by the frame and fixed relative to the frame, the conveyor being configured to transfer sleepers from the reception area to the conveying platform remote from the receiving area along a longitudinal direction of the transfer wagon, the transporter being located, with respect to the longitudinal direction of the transfer wagon, between the the reception area and the conveying platform.

By transhipping is understood here to transport, by lifting it and moving it in the air, a load constituted here by one or more sleepers, from one point to another, here from the reception area to the conveying platform.

A sleeper transfer wagon comprising such a combination of features makes it possible to bring together sleeper transfer operations locally. This transfer operation is therefore concentrated on one and the same wagon and implemented by at least one ferry whose frame is fixed relative to the frame of said wagon, which makes it possible to guarantee the safety of people brought into the vicinity. of the wagon and therefore, to overcome the constraints related to the movement of a conventional gantry. Furthermore, the positioning of the ferry relative to the reception area and to the conveying platform allows it to transship the sleepers along the longitudinal direction of the wagon in the same direction as that of its conveyance along the rail vehicle. Each cross member is therefore conveyed and transhipped continuously in the same direction of conveying and transfer. The direction of conveying and transfer can depend on several aspects, in particular if it concerns new or worn sleepers, and depending on the positioning of the sleeper storage areas in relation to the other wagons.

The reception area and the platform are preferably located at different heights.

• une première zone de réception et de dépilement des nouvelles traverses, appartenant au groupe d'une ou plusieurs zones de réception, configurée pour réceptionner les nouvelles traverses en provenance d'une zone de stockage du véhicule ferroviaire ;
• une deuxième plateforme de convoyage des nouvelles traverses, appartenant au groupe d'une ou plusieurs plateformes de convoyage, à partir de laquelle lesdites nouvelles traverses peuvent être convoyées vers les équipements de pose des nouvelles traverses, la deuxième plateforme de convoyage des nouvelles traverses étant distante de la première zone de réception et de dépilement des nouvelles traverses le long de la direction longitudinale du wagon de transfert ;

le transbordeur étant configuré pour transborder les nouvelles traverses de la première zone de réception à la deuxième plateforme de convoyage. Ceci permet de réunir localement les opérations de transfert des nouvelles traverses de la première zone de réception et de dépilement des nouvelles traverses jusqu'à la deuxième plateforme de convoyage des nouvelles traverses.According to one embodiment, the sleeper transfer wagon is intended to equip a rail vehicle of the type comprising equipment for laying new sleepers, the transfer wagon further comprising:

• a first zone for receiving and unstacking the new sleepers, belonging to the group of one or more reception zones, configured to receive the new sleepers coming from a storage zone of the railway vehicle;
• a second platform for conveying the new sleepers, belonging to the group of one or more conveying platforms, from which said new sleepers can be conveyed to the equipment for laying the new sleepers, the second platform for conveying the new sleepers being remote the first zone for receiving and unstacking the new sleepers along the longitudinal direction of the transfer wagon;

the transporter being configured to transfer the new sleepers from the first reception area to the second conveying platform. This makes it possible to bring together locally the operations of transferring the new sleepers from the first reception zone and unstacking the new sleepers to the second platform for conveying the new sleepers.

• une première plateforme de convoyage des traverses usées, appartenant au groupe d'une ou plusieurs plateformes de convoyage, à partir de laquelle lesdites traverses usées peuvent être convoyées vers une zone de stockage du véhicule ferroviaire ;
• une deuxième zone de réception des traverses usées, appartenant au groupe d'une ou plusieurs zones de réception, configurée pour réceptionner des traverses usées depuis les équipements de déposes des traverses usées, la deuxième zone de réception des traverses usées étant distante de la première plateforme de convoyage des traverses usées le long de la direction longitudinale du wagon de transfert ;

le transbordeur étant configuré pour transborder les traverses usées de la deuxième zone de réception à la première plateforme de convoyage. Ceci permet de réunir localement les opérations de transfert de la deuxième zone de réception des traverses usées jusqu'à la première plateforme de convoyage des traverses usées, de préférence en combinaison avec le transfert des nouvelles traverses de la première zone de réception et de dépilement des nouvelles traverses jusqu'à la deuxième plateforme de convoyage des nouvelles traverses.According to one embodiment, the transfer wagon is intended to equip a rail vehicle of the type comprising equipment for removing worn sleepers, said transfer wagon comprising:

• a first platform for conveying used sleepers, belonging to the group of one or more conveying platforms, from which said used sleepers can be conveyed to a storage area of the railway vehicle;
• a second zone for receiving used sleepers, belonging to the group of one or more reception zones, configured to receive worn sleepers from the equipment for removing used sleepers, the second zone for receiving used sleepers being remote from the first platform conveying the worn sleepers along the longitudinal direction of the transfer car;

the transporter being configured to transfer the worn sleepers from the second reception area to the first conveying platform. This makes it possible to combine locally the transfer operations from the second zone for receiving used sleepers to the first platform for conveying used sleepers, preferably in combination with the transfer of new sleepers from the first zone for receiving and unstacking the sleepers. new sleepers to the second platform for conveying the new sleepers.

According to one embodiment, the frame supporting the transporter is contained in a volume delimited laterally and longitudinally by a template of the sleeper transfer wagon, preferably by a template of its frame. The dimensions of the reinforcement in width and in length are therefore constrained by those of the wagon, or even of the chassis, which makes it possible to comply with the safety criteria with a certain compactness free from the constraints of size to travel along a track railway line and which could be linked to the environment outside the railway line. The length corresponds here to a dimension taken along the longitudinal direction of the wagon, namely in the direction of travel along the railway track, and the width corresponds to a dimension taken along the lateral or transverse direction of the wagon, perpendicular to the direction longitudinal.

Preferably, the ferry is entirely contained in a volume delimited by a predetermined rail gauge such as a gauge recognized by the International Union of Railways (UIC), for example the international gauge (PPI) or many other gauges such as the GA, GB or GC template.

According to one embodiment, the ferry is unique. Such a feature provides a simple design while allowing the implementation of both transfer streams, new sleepers and, preferably also, worn sleepers.

According to one embodiment, the transporter comprises a system for gripping at least one cross member suspended from a lifting system movable relative to the frame, the gripping system preferably comprising a lifting beam configured to transport a plurality of grouped cross members. per package. As this is a suspended gripping system, with a lifting system mobile relative to the frame, the mobile part of the transporter is high relative to the frame in order to further guarantee safety.

According to one embodiment, the lifting system is carried by a shuttle movable in translation relative to the frame, preferably in a translation parallel to a reference axis corresponding to a longitudinal direction of the wagon.

In order not to hinder the movement of the ferry, while ensuring safety during its use, the frame includes guide rails and support for the mobile shuttle, located above the at least one reception and reception area. the at least one conveying platform, preferably above the first reception area and the second conveying platform, and preferably also above the second reception area and the first conveying platform.

According to one embodiment, the first conveying platform is located at a height greater than that of the first reception zone. Alternatively or complementarily, the second conveying platform is located at a height greater than that of the second reception area.

According to one embodiment, the first conveying platform and the first reception zone are closer to a first end of the transfer wagon than the second conveying platform, and the second reception zone. In a particular configuration, said first end of the wagon corresponds to the front end of said wagon. In such a configuration, the first conveying platform and the first receiving area are located at the front of the wagon, the second conveying platform and the second receiving area then preferably being located at the rear of the wagon with respect to the wagon. direction of travel of the rail vehicle. Such an arrangement makes it possible to optimize a workspace of the ferry, in particular when the transfer wagon is placed between storage wagons on the one hand, and at least one work wagon on the other hand, which carries equipment for installation of new sleepers and / or equipment for removing worn sleepers.

According to one embodiment, the transfer wagon comprises a lifting mechanism in at least one of the reception areas, preferably in the first area for receiving and unstacking the new sleepers, configured to position at least one sleeper, preferably a bundle of sleepers, at a predetermined height. Such a lifting mechanism makes it possible to bring the bundles of sleepers to a position facilitating taking over by the ferry, so as to limit the sequence times thereof, and to gain in speed. The actuation of the lifting mechanism can also be carried out in masked time with respect to the movement of the transporter.

According to one embodiment, the transfer wagon comprises at least part of a mechanism for moving stacks of sleepers in order to move said stacks of sleepers in translation towards at least one of the reception zones, preferably towards the first zone. for receiving and unstacking the new sleepers, the movement mechanism preferably comprising carriages configured to be placed on a guide track located under the stacks of sleepers.

According to one embodiment, the movement mechanism is configured to move each carriage back and forth, preferably by a step corresponding to a distance greater than a length of a stack of sleepers, the mechanism of displacement being configured so that each carriage carries a stack of sleepers following a forward path, and configured to travel a return path, reverse to the forward path, being unloaded, without moving them. Such a configuration makes it possible to dispense with a system for storing the carriages at the end of their travel, but also a long and cumbersome return travel for the carriages.

According to one embodiment, the transfer wagon comprises a third conveying device, for example for conveying material such as ballast, located vertically above the transporter. Of course, it can be used ballast, new ballast, or even treated ballast from used ballast after having undergone a treatment allowing its recycling.

According to another aspect of the invention, it relates to a railway works vehicle of the type comprising, for example, equipment for laying new sleepers and / or removing worn sleepers, the rail vehicle comprising at least one railcar. sleeper storage comprising a sleeper storage area, one or more wagons comprising equipment for laying new sleepers and / or removing worn sleepers from a railway track, characterized in that it further comprises a transfer wagon as described above.

According to one embodiment, the railway vehicle comprises a stacking wagon of worn sleepers, comprising a stacking conveyor for said worn sleepers to transfer the worn sleepers coming from the transfer wagon, the stacking conveyor being supported by an associated frame. , fixed in relation to the stacking car of worn sleepers. In this way, the stacking ferry also guarantees the safety of people who may be in its vicinity.

• un premier dispositif de convoyage d'évacuation pour convoyer des traverses usées depuis les équipements de dépose des traverses usées jusqu'à la deuxième zone de réception des traverses usées ; et
• un deuxième dispositif de convoyage d'évacuation pour convoyer des traverses usées depuis la première plateforme de convoyage des traverses usées jusqu'à une zone de stockage du véhicule ferroviaire ;
  et/ou
• un premier dispositif de convoyage d'acheminement pour convoyer des traverses neuves depuis une zone de stockage du véhicule ferroviaire jusqu'à la première zone de réception et de dépilement des nouvelles traverses ; et
• un deuxième dispositif de convoyage d'acheminement pour convoyer des traverses neuves depuis la deuxième plateforme de convoyage des nouvelles traverses jusqu'aux équipements de pose des nouvelles traverses ;

le véhicule ferroviaire comprenant un troisième dispositif de convoyage, par exemple pour le convoyage de matériel tel que du ballast, situé verticalement au-dessus des premier et deuxième dispositifs de convoyage d'évacuation et/ou des premier et deuxième dispositifs de convoyage d'acheminement.According to one embodiment, the rail vehicle comprises:

• a first discharge conveying device for conveying worn sleepers from the equipment for depositing used sleepers to the second zone for receiving used sleepers; and
• a second discharge conveyor device for conveying worn sleepers from the first platform for conveying used sleepers to a storage area of the railway vehicle;
  and or
• a first routing conveyor device for conveying new sleepers from a storage area of the rail vehicle to the first area for receiving and unstacking the new sleepers; and
• a second conveying device for conveying new sleepers from the second platform for conveying the new sleepers to the equipment for laying the new sleepers;

the rail vehicle comprising a third conveying device, for example for conveying material such as ballast, located vertically above the first and second discharge conveying devices and / or the first and second conveying conveying devices .

According to another aspect, the invention also relates to a method for transferring sleepers intended to equip a rail vehicle of the type comprising, for example, equipment for installing new sleepers and / or removing worn sleepers, the transfer wagon comprising a chassis supported by at least one set of wheels, and further comprising a group of one or more sleeper reception areas comprising at least one sleeper reception area and a group of one or more conveying platforms comprising at least one platform sleeper conveying process, the transfer method being characterized in that it comprises at least one step of transferring at least one sleeper from the reception area to the conveying platform located at a distance from the reception area along 'a longitudinal direction of the transfer wagon, by at least one transporter supported by a frame, the frame being supported by the frame and fixed relative to the frame, the transbo rdeur being located, relative to the longitudinal direction of the transfer wagon, between the reception area and the conveying platform.

• une première zone de réception et de dépilement des nouvelles traverses, appartenant au groupe d'une ou plusieurs zones de réception, configurée pour réceptionner des nouvelles traverses en provenance d'une zone de stockage du véhicule ferroviaire ;
• une deuxième plateforme de convoyage des nouvelles traverses appartenant au groupe d'une ou plusieurs plateformes de convoyage, à partir de laquelle lesdites nouvelles traverses peuvent être convoyées vers les équipements de pose des nouvelles traverses, la deuxième plateforme de convoyage des nouvelles traverses étant distante de la première zone de réception et de dépilement des nouvelles traverses le long de la direction longitudinale du wagon de transfert et, le cas échéant, à une hauteur différente de de la première zone de réception et de dépilement des nouvelles traverses;

l'étape de transfert comprenant une étape de transfert d'au moins une nouvelle traverse de la première zone de réception à la deuxième plateforme de convoyage, par le transbordeur.According to one embodiment, the transfer wagon comprises:

• a first zone for receiving and unstacking new sleepers, belonging to the group of one or more reception zones, configured to receive new sleepers coming from a storage area of the rail vehicle;
• a second platform for conveying the new sleepers belonging to the group of one or more conveying platforms, from which said new sleepers can be conveyed to the equipment for laying the new sleepers, the second platform for conveying the new sleepers being distant from the first zone for receiving and unstacking the new sleepers along the longitudinal direction of the transfer wagon and, where appropriate, at a height different from the first zone for receiving and unstacking the new sleepers;

the transfer step comprising a step of transferring at least one new cross member from the first reception zone to the second conveying platform, by the ferry.

• une première plateforme de convoyage des traverses usées appartenant au groupe d'une ou plusieurs plateformes de convoyage, à partir de laquelle lesdites traverses usées peuvent être convoyées vers une zone de stockage du véhicule ferroviaire ; et
• une deuxième zone de réception des traverses usées appartenant au groupe d'une ou plusieurs zones de réception, configurée pour réceptionner les traverses usées depuis les équipements de dépose des traverses usées, la deuxième zone de réception des traverses usées étant distante de la première plateforme de convoyage des traverses usées le long de la direction longitudinale du wagon de transfert et, le cas échéant, à une hauteur différente de la première plateforme de convoyage des traverses usées ;

l'étape de transfert comprenant une étape de transfert d'au moins une traverse usée de la deuxième zone de réception à la première plateforme de convoyage par le transbordeur.According to one embodiment, the sleeper transfer wagon comprises:

• a first platform for conveying used sleepers belonging to the group of one or more conveying platforms, from which said used sleepers can be conveyed to a storage area of the railway vehicle; and
• a second zone for receiving used sleepers belonging to the group of one or more reception zones, configured to receive worn sleepers from the equipment for depositing used sleepers, the second zone for receiving used sleepers being remote from the first platform of conveying the worn sleepers along the longitudinal direction of the transfer wagon and, where appropriate, at a height different from the first platform for conveying the worn sleepers;

the transfer step comprising a transfer step of at least one worn cross member from the second reception area to the first conveying platform by the ferry.

BRIEF DESCRIPTION OF THE FIGURES

• [Fig. 1] : une vue de profil d'un véhicule ferroviaire selon un premier mode de réalisation de l'invention ;
• [Fig. 2] : une vue de côté d'un wagon de transfert selon ce premier mode de réalisation de l'invention ;
• [Fig. 3] : une vue de côté d'un wagon de transfert selon un deuxième mode de réalisation de l'invention ;
• [Fig. 4] : une vue de côté d'un wagon de stockage selon un mode de réalisation de l'invention ;
• [Fig. 5] : une vue de côté d'un wagon d'empilement de traverses usées selon un mode de réalisation de l'invention ;
• [Fig. 6] : une vue de dessus d'une jonction entre deux convoyeurs ;
• [Fig. 7] : une vue simplifiée et en coupe transversale d'un wagon de stockage d'un véhicule ferroviaire, selon un mode de réalisation de l'invention.

Other characteristics and advantages of the invention will emerge on reading the following description, with reference to the appended figures, which illustrate:

• [ Fig. 1 ]: a side view of a railway vehicle according to a first embodiment of the invention;
• [ Fig. 2 ]: a side view of a transfer wagon according to this first embodiment of the invention;
• [ Fig. 3 ]: a side view of a transfer wagon according to a second embodiment of the invention;
• [ Fig. 4 ]: a side view of a storage wagon according to one embodiment of the invention;
• [ Fig. 5 ]: a side view of a stacking car of worn sleepers according to one embodiment of the invention;
• [ Fig. 6 ]: a top view of a junction between two conveyors;
• [ Fig. 7 ]: a simplified view in cross section of a storage wagon of a railway vehicle, according to one embodiment of the invention.

For greater clarity, identical or similar elements are identified by identical reference signs in all of the figures.

DETAILED DESCRIPTION OF AN EMBODIMENT

With reference to the figure 1 , is illustrated a railway vehicle 1 of the type comprising equipment for laying 11 new sleepers 21 and for removing 12 worn sleepers 22. These equipment for installing and removing sleepers 21, 22, have as their main function the repair of railway tracks , for example to replace worn sleepers 22 or to replace them with more recent models and thus improve the performance of the tracks.

The rail vehicle 1, for example a renewal train as illustrated in the figure 1 , is made up of a succession of wagons linked together, generally articulated, forming a rail convoy and towed by a locomotive. The renewal train 1 moves, during work, in a direction of advance and each wagon extends in a longitudinal direction X and has an AV front end oriented in the direction of travel of the train and an opposite rear end AR longitudinally at the front end AV.

• un flux d'évacuation C1 des traverses usées 22 depuis les équipements de dépose de traverses usées 22 jusqu'à une zone de stockage du véhicule ferroviaire 1 pouvant s'étendre sur plusieurs wagons de stockages, le flux d'évacuation C1 étant orienté suivant la direction longitudinale du wagon de transfert et dans un premier sens ; et
• un flux d'approvisionnement C2 de traverses neuves 21 depuis une zone de stockage du train jusqu'aux équipements de pose des nouvelles traverses 21, le flux d'approvisionnement C2 étant orienté suivant la direction longitudinale du wagon de transfert et dans un second sens, opposé au premier sens.

With reference to figures 1 to 7 the renewal train 1 is equipped with a transfer wagon 100 of sleepers 21, 22. The transfer wagon 100 is intended to be arranged relative to the renewal train 1 , between on the one hand, at least one wagon comprising equipment for laying 11 new sleepers 21 and removing 12 worn sleepers 22 and, on the other hand, storage wagons 300 ( figure 4 ) new sleepers 21 and worn sleepers 22. The function of the transfer wagon 100 is to ensure the continuity of flows between:

• an evacuation flow C1 of the worn sleepers 22 from the equipment for removing used sleepers 22 to a storage area of the railway vehicle 1 which can extend over several storage wagons, the evacuation flow C1 being oriented according to the longitudinal direction of the transfer car and in a first direction; and
• a supply flow C2 of new sleepers 21 from a storage area of the train to the equipment for laying new sleepers 21, the supply flow C2 being oriented in the longitudinal direction of the transfer wagon and in a second direction, opposite to the first meaning.

In the configuration illustrated in the figures, the equipment for laying 11 new sleepers 21 and removing 12 worn sleepers 22 are located at the rear of the rail vehicle 1 with respect to the transfer wagon 100 of sleepers 21, 22 and the wagons storage 300 are located at the front of the rail vehicle 1 relative to the transfer wagon 100 of sleepers 21, 22. The reverse arrangement is however possible.

• une première zone Z1 de réception et de dépilement des nouvelles traverses 21 configurée pour réceptionner les nouvelles traverses 21 en provenance d'une zone de stockage 300 du véhicule ferroviaire 1 ;
• une première plateforme P1 de convoyage des traverses usées 22, à partir de laquelle lesdites traverses usées 22 peuvent être convoyées vers une zone de stockage 300 du véhicule ferroviaire 1 ;
• une deuxième zone Z2 de réception des traverses usées 22 configurée pour réceptionner les traverses usées 22 depuis les équipements de dépose des traverses usées 22 ;
• une deuxième plateforme P2 de convoyage des nouvelles traverses 21 à partir de laquelle lesdites nouvelles traverses 21 peuvent être convoyées vers les équipements de pose des nouvelles traverses 21.

The transfer wagon 100, like the other wagons of the rail vehicle 1, comprises a frame 110 supported by two bogies 111, located at the two front and rear ends of the frame 110, and each provided with one or more trains of wheels 112. For this purpose, provision is preferably made for the bogies each to include a bogie frame, at least two sets of wheels 112, and at least one suspension between the two sets of wheels and the bogie frame. The transfer wagon 100 is located between the streams C1 and C2 , that is to say at the intersection of the two streams of discharge C1 of the worn sleepers 22 on the one hand, and of supply C2 of new sleepers 21 on the other hand. The 100 transfer car includes:

• a first zone Z1 for receiving and unstacking the new sleepers 21 configured to receive the new sleepers 21 coming from a storage zone 300 of the rail vehicle 1 ;
• a first platform P1 for conveying the used sleepers 22, from which said used sleepers 22 can be conveyed to a storage area 300 of the railway vehicle 1 ;
• a second zone Z2 for receiving the worn sleepers 22 configured to receive the worn sleepers 22 from the equipment for removing the worn sleepers 22 ;
• a second platform P2 for conveying the new sleepers 21 from which said new sleepers 21 can be conveyed to the equipment for laying the new sleepers 21.

The transfer wagon 100 comprises at least one transporter 50 supported by a frame 60, the frame 60 being supported by the frame 110 and fixed relative to the frame 110. The transporter 50 ensures the transshipment of new sleepers from the first reception area. Z1 to, and up to, the second conveying platform P2 , as well as the transshipment of used sleepers from the second reception zone Z2 to, and up to, the first conveying platform P1. By transshipment, we mean here the transport, by lifting it and moving it in the air, of a load constituted here by one or more sleepers, from one point to another, here from the reception area to the platform of conveying. The first and second conveying platforms P1, P2 are each distant from the first and second reception zones Z1, Z2, along a longitudinal direction X of the transfer wagon 100. The transporter 50 is located, with respect to the longitudinal direction X of the transfer wagon 100, between the reception area Z1, Z2 and the conveying platform P1, P2. In this way, the implementation of the transporter 50 allows ensure the continuity of the C1 discharge flow of worn sleepers 22 and C2 supply of new sleepers 21.

The path of the worn sleepers 22 is as follows: the equipment 12 for removing worn sleepers 22 extracts one by one and repeatedly and successively worn sleepers 22 and then places them on a first discharge conveyor device A1; these worn sleepers 22 are then conveyed by the first discharge conveyor device A1 to the second zone Z2 for receiving the worn sleepers 22 where they are taken care of by the transporter 50 which moves them to the first platform P1 used sleepers 22, from which said used sleepers 22 are conveyed to a storage area of the rail vehicle 1 by a second discharge conveyor device A2. In other words, the first platform P1 for conveying the worn sleepers 22 is configured to receive the worn sleepers 22 by the transporter 50 to be conveyed to the storage area of the rail vehicle 1.

The first and second discharge conveying devices A1, A2 are here conveying devices with chain (s) 70, preferably metallic, mounted on support and drive devices 71 comprising return wheels such as only cogwheels and idlers. Often, these devices also include tensioning members (not shown) for the purpose of properly tensioning the chain (s) 70. Preferably, each of the first and second discharge conveying devices A1, A2 comprises at least two paths. chain drives mounted in parallel, the worn sleepers 22 then being conveyed resting on the two parallel chains at the same time. A chain drive path can be formed by one and the same chain continuously circulating in a closed loop, or by a succession of continuous chains circulating in closed loops arranged successively along this drive path. sleepers. When several chains or chain drive tracks are mounted in parallel and convey the same cross members, all or part of the support and drive devices such as the return wheels and idle wheels can optionally be shared. Of course, variants of conveying devices can be used.

The second zone Z2 for receiving the worn sleepers 22 receiving the worn sleepers 22 from the equipment for depositing 12 the worn sleepers 22 as well as the first platform P1 for conveying the worn sleepers 22, from which said used sleepers 22 are conveyed to a storage area of the railway vehicle 1, each comprise or are each constituted by one of the ends of the first and second discharge conveyor devices A1, A2, respectively. As a variant, or even in addition, the second zone Z2 for receiving the worn sleepers 22 may comprise a buffer zone located in the extension of the first discharge conveyor device A1 and making it possible to temporarily store a plurality of used sleepers 22 before being used. supported together, per package. Such a buffer zone comprises for example a zone devoid of any drive means or a zone comprising one or more free or disengaged chains, that is to say without drive means engaged with the chains capable of constraining the chains in rotation. on this portion, known as the buffer, of conveying. In such a configuration, each worn cross member 22 then completes its journey on the chains of the discharge conveying device then comes into contact with and bears against the worn cross member 22 located in front of it and pushes it while driving it in its movement.

In parallel with the discharge flow C1 of used sleepers 22, the route of the new sleepers 21 supplying the supply flow C2 of new sleepers is as follows: the new sleepers 21 are conveyed by stacks from a storage area of the rail vehicle 1 up to the first zone Z1 for receiving and unstacking the new sleepers 21 by a first delivery conveyor device B1 where they are taken over by the transporter 50 which moves the new sleepers 21 to the second platform P2 of conveying the new sleepers 21 from which said new sleepers 21 are conveyed to the equipment 11 for laying the new sleepers 21 by a second routing conveyor device B2. In other words, the second platform P2 for conveying the new sleepers 21 is configured to receive the new sleepers 21 by the transporter 50 to be conveyed to the laying equipment 11. The transporter 50 which performs these operations is the same. than the one carrying out the transfer operations of the discharge stream C1 from the worn sleepers 22. A single and single transporter 50 therefore implements the streams C1 and C2 .

The second conveying platform P2 comprises, or even consists of, one of the ends of the second routing conveying device B2. This second routing conveyor device B2 can be a chain conveyor (s) 70 as described with reference to the discharge conveyor devices A1, A2.

The first feed conveyor device B1 comprises, or consists of, a mechanism 130 for moving stacks 21 ' of new sleepers 21 to move said stacks 21' of sleepers in translation step by step towards and up to the first zone Z1 for receiving and unstacking the new sleepers 21. The displacement mechanism 130 preferably comprises carriages 131 configured to be placed on a guide track 132, each carriage 131 being configured to support a stack 21 ' of new sleepers 21.

The movement mechanism 130 is configured to move each carriage 131 back and forth by a pitch p corresponding to a distance greater than a length l of a stack of new sleepers 21, taken in the longitudinal direction, preferably slightly. superior. Each carriage 131 carries a stack 21 ′ of new sleepers 21 by raising it along an advancing path and by moving it by a step p in the direction of the first zone Z1 for receiving and unstacking the new sleepers 21, then traverses a return path, reverse to the forward path, being unloaded, therefore without moving the stack 21 '. More generally, the back-and-forth movement of a given carriage 131 is therefore a reciprocating movement along the same path, in a direction of advance, carrying a stack 21 ', 22' of sleepers 21, 22, and in a return direction, opposite to the direction of advance and unloaded, that is to say that they do not carry a stack 21 ', 22' of sleepers 21, 22. Each carriage 131 therefore moves at the same time. way of a shuttle between two positions. According to an advantageous characteristic, the carriages 131 are connected in an articulated manner by groups of several carriages 131, for example by groups of three carriages 131. In this way it is possible to easily manage the transfer of a stack 21 ' of new sleepers 21 between two. wagons.

More precisely, the new sleepers 21 are stored in stacks 21 ' on a supporting structure secured to the frame 110 by jacks such as double-acting hydraulic jacks, said supporting structure having two support beams each located on either side of the carriages. 131. The carriages 131 run on the guide track 132 and are free to go in one longitudinal direction or the other, either forwards or backwards, without manipulating the new cross members 21 when the supporting structure is in the vertically mounted position. at a level higher than that of the carriages 131. The carriages 131 run on the guide track 132 and each carry a stack 21 ' of new sleepers 21 when the supporting structure is in the vertically lowered position and is located under a support plane of the carriages 131. A sequence of displacement of the stacks of new sleepers 21 by the displacement mechanism 130 is for example the following: the supporting structure e is lowered by the jacks, all the carriages 131 each place themselves simultaneously under a stack 21 ' of new sleepers 21, carry the stack 21' of new sleepers 21; move the stack 21 ' of new sleepers 21 by a predetermined pitch p , then the stack 21' moved by new sleepers 21 is lifted by the supporting supporting structure actuated by the jacks, then the carriages 131 return empty or then unloaded to their starting position to position themselves under another stack 21 ' of cross member 21, which has also just been moved during the sequence. Repeating the sequence in cycles allows the stacks 21 ' of new sleepers 21 to be moved step by step in the direction of the first zone Z1 for receiving and unstacking the new sleepers 21.

The transfer wagon 100 comprises an lifting mechanism 120 in the first zone Z1 for receiving and unstacking the new sleepers 21 towards which the stacks of sleepers moved by the displacement mechanism 130 converge one by one. This lifting mechanism 120 makes it possible, as time goes by and as a stack 21 ' of new sleepers 21 is unstacked, being able to raise the stack 21' by a predetermined height so that the new sleepers 21 located on an upper end layer of the stack are positioned at a predetermined height and can be taken over more easily by the transporter 50 and improve the speed of movement of said transporter 50.

In this embodiment, the transporter 50 is unique. The frame 60 which supports it comprises a plurality of uprights 62 erect vertically and carrying at least two horizontal beams 63 on which are arranged rails 61 for guiding and supporting a shuttle 53 movable in translation longitudinally relative to the frame. 60. The uprights of the frame are fixed relative to the frame 110 of the transfer wagon 100. The mobile shuttle 53 forms a horizontal structure moving on the two guide tracks formed by the rails 61, said shuttle 53 comprising at least one transverse beam, that is to say extending transversely between the two rails 61, and preferably two beams, forming an overhead crane and guided by the guide and support rails 61.

The transporter 50 further comprises a gripping system 51 of at least one cross member 21, 22 suspended by a lifting system 52 from the shuttle 53. The lifting system 52 is a cable lifting system. The gripping system 51 preferably comprises a lifting beam configured to transport a plurality of cross members 21, 22 grouped together by pack. An operating mode will preferably be chosen in which the transporter 50 moves the sleepers 21, 22 in packages of a single layer, that is to say that during their transfer, the sleepers 21, 22 are not superimposed, but placed side by side.

The gripping system 51 comprises a spreader formed from one or more beams integral with one another and comprising at its transverse ends, and facing each other, jaws, for example in the shape of an "L", each jaw being articulated by its end to the lifter, and being controlled to pivot by a jack (not shown).

The work of the transporter 50, in particular of the shuttle 53, of the lifting system 52 and of the gripping system 51, is generally located inside a volume delimited by the frame 60 with the frame 110 of the transfer wagon. 100. Moreover, whatever the working route of the transporter 50, it is contained for any position of its trajectory, in a volume delimited laterally by a gauge of the transfer wagon 100 of sleepers, preferably by a gauge of its frame 110, more preferably by the volume delimited by the frame 60. In this way, at the same time to ensure the safety of people on the edges of the wagon. transfer 100, the wagon has a size which does not go beyond a conventional wagon.

The first conveying platform P1 and the first receiving zone Z1 are closer to a first end 101 of the transfer wagon 100 than the second conveying platform P2 and the second receiving zone Z2. In particular, the first conveying platform P1 and the first receiving zone Z1 are close to the front end 101 of the transfer wagon 100, while the second conveying platform P2 and the second receiving zone Z2 are closer to a second end 102 of the transfer car 100, namely the rear end.

Moreover, and although located at different heights, the first conveying platform P1 is closer to the first end 101 of the transfer wagon 100 than the first reception zone Z1. Similarly, the second conveying platform P2 is closer to the second end 102 of the transfer wagon 100 than the second reception zone Z2. In general, longitudinal offsets of the first and second platforms P1, P2 and of the first and second zones Z1, Z2 allow accessibility by the transporter 50 along the same axis, corresponding to its axis of translation along the frame 60.

In the embodiment of figures 1 and 2 in particular, the first conveying platform P1 is located at a height greater than that of the first reception zone Z1 and the second conveying platform P2 is located at a height greater than that of the second reception zone Z2. By positioning the first conveying platform P1 at a height greater than that of the first receiving zone Z1 , and in relation to the storage wagons 300, the second discharge conveying device A2 is placed above the first receiving device. forwarding conveyor B1. The sleepers are stored in the form of stacks of sleepers and are placed under the second discharge conveyor device A2, which in turn transports the sleepers in bundles of a single layer of sleepers, that is to say without superimposition of sleepers. This makes it possible to place the center of gravity as low as possible and therefore to ensure better stability for the different wagons, such as the transfer wagon 100 and the storage wagons 300.

Due to the arrangement of the first conveying platform P1 with respect to the first receiving zone Z1 , of the second conveying platform P2 with respect to the second receiving zone Z2 , these discharge and supply flows C1 C2 are here crossed. As the transporter 50 is the only one to operate the two flows, namely the discharge flow C1 for the worn sleepers 22 and the supply flow C2 for new sleepers 21, the transfer steps are implemented in a sequenced manner.

Along a longitudinal axis X, the first and second platforms P1, P2 and the first and second zones Z1, Z2 are located so that the transporter 50 is able to travel the paths of the evacuation C1 and supply C2 flows when it translates longitudinally with respect to the frame 60 in a single round trip between two extreme longitudinal positions. In general, the vertical projections of the first and second platforms P1, P2 and of the first and second zones Z1, Z2 are aligned along the same longitudinal axis, the first and second platforms P1, P2 and the first and second zones Z1, Z2 being able to be located at different levels or heights. In this first embodiment, the transfer wagon 100 comprises, in a longitudinal direction X from the rear to the front: the first conveying platform P1 , the first reception zone Z1 , the second reception zone Z2 then the second P2 conveying platform.

With reference to the figure 3 , this second embodiment of the invention differs from the first in that the second receiving zone Z2 is located at a height greater than that of the second conveying platform P2. In addition, in this second embodiment, the second receiving zone Z2 is closer to a second end 102 of the transfer wagon 100 than the second conveying platform P2 so that the transfer wagon 100 comprises, in a direction longitudinal from the rear to the front: the first conveying platform P1 , the first receiving zone Z1 , the second conveying platform P2 then the second receiving zone Z2.

The rail vehicle 1 also comprises a stacking car 200 of worn sleepers 22, illustrated in FIG. figure 5 . This stacking 200 wagon is located directly after the storage wagons 300, themselves located directly after the transfer wagon 100 in the direction from the rear AR to the front AV of the rail vehicle 1. The stacking wagon 200 comprises a stacking transporter 250 which transfers the worn sleepers 22 from a third zone Z3 for receiving the worn sleepers 22 coming from the transfer wagon 100 after having been conveyed by the second discharge conveyor device A2 , until being deposited on a stack 22 ' of sleepers worn 22 to be stacked. This stacking zone Z4 is located on the supporting structure above the guide track 132 of the carriages 131. In this way, once the stack 22 ' of worn sleepers 22 has been completed by the transporter 260, it can be advanced by the displacement mechanism 130 by a certain predetermined pitch p , corresponding to the pitch p of the displacement of the stack of new sleepers 21 ' towards the first reception zone Z1. These operations are concomitant given that the rail vehicle 1 installs as many new sleepers 21 as it does not deposit worn sleepers 22. In this way, when a stack of new sleepers 21 is emptied in front of the storage area , in the first reception zone Z1 , a stack 22 'of worn sleepers 22 is completed at the rear of the storage zone, in the stacking zone Z4. The stacking zone Z4 and the first receiving zone Z1 form the two longitudinal ends of the first conveyor conveying device B1.

The third receiving zone Z3 comprises, or even consists of, one of the ends of the second discharge conveying device A2, opposite the end constituting the first conveying platform P1. A buffer zone (not shown) can also be provided to receive the sleepers.

The single stacking conveyor 250 is supported by an associated frame 260 , said frame 260 being supported by the frame and fixed relative to said frame. This stacking transporter 250 may be of a design similar to that of the transfer transporter 50 , but may be of a smaller size since the path to be covered is shorter.

The stacking car 200 further comprises a turntable system (not shown) for pivoting at least one stack of sleepers, for example. example of 90 °, in order to facilitate their handling by a means of handling external to the machine.

The figure 6 illustrates an intersection 72 or overlap in the same horizontal plane of two pairs of chains 70 of a chain conveyor device 70. Such an interweaving of two pairs of chains, each continuous and circulating in a closed loop, arranged successively along the path drives, makes it possible to ensure a continuity of movement in the conveying of the sleepers 21, 22. Furthermore, this intersection of the end portions of the two pairs of chains 70 is made so as to have a predetermined spacing sufficient to allow articulation minimum between the two conveying portions, each formed by a pair of chains. Such a configuration is particularly advantageously at the intersection between two wagons and makes it possible to ensure perfect conveying of the sleepers 21, 22, without being impacted by the curves of the railway on which the train 1 runs.

The figure 7 illustrates a sectional view of a storage car 300 according to one embodiment. In particular, visible in this figure is a third conveying device D1 configured to transport material such as ballast. This sectional view shows in particular a positioning of the third conveying device D1 which is located vertically above the first discharge conveying device B1 and of the second discharge conveying device A2. The illustrated wagon is located here upstream of the transfer wagon 100 with respect to the direction of travel of the train. On a portion located downstream of the transfer wagon 100 with respect to the direction of advance of the train, in this case, a positioning of the third conveying device D1 which is located vertically above the second conveying device B2 and of the first discharge conveyor device A1. In this case, to ensure continuity of the conveying on the third conveying device D1, said third conveying device D1 will be placed vertically above the conveyor 50 at the level of the transfer wagon 100. Naturally, the invention is described in this case. above as an example. It is understood that a person skilled in the art is in a position to produce various variant embodiments of the invention without, however, departing from the scope of the invention.

The first discharge conveyor device B1 can optionally consist of a conveyor belt conveyor. Alternatively, it is also possible to envisage a conveyor on trolleys 131, the trolleys 131 of which move step by step with the stacks 21 ′ of new sleepers 21 from the storage wagons 300 to the first zone Z1 for receiving and unstacking the new ones. sleepers 21 to then be evacuated by the transporter 50 to the first platform P1 for conveying the worn sleepers 22, from which the carriages 131 can be conveyed with the used sleepers 22 to the storage area of the rail vehicle 1 where they are reused for the storage of worn sleepers 22.

It is pointed out that all the characteristics, as they become apparent to a person skilled in the art from the present description, the drawings and the appended claims, even if concretely they have been described only in relation to others. certain characteristics, both individually and in any combination, may be combined with other characteristics or groups of characteristics disclosed here, provided that this has not been expressly excluded or that technical circumstances make such combinations impossible or unnecessary. sense.

Claims (14)

Sleeper transfer wagon (100) intended to equip a railway vehicle (1) such as a train or a train comprising equipment for laying (11) new sleepers (21), equipment for removing (12) worn sleepers (22) and a sleeper storage area, the transfer wagon (100) comprising a frame (110) supported by at least one set of wheels (112), the transfer wagon (100) being characterized in that it comprises a frame (60) supported by the frame (110) and fixed relative to the frame (110) and a single transporter (50) supported by the frame (60), the transfer wagon (100) comprising: - a first zone (Z1) for receiving and unstacking the new sleepers (21) configured to receive the new sleepers (21) coming from the storage area of the rail vehicle (1); - a first platform (P1) for conveying the worn sleepers (22) from which the worn sleepers (22) can be conveyed to the storage area of the railway vehicle (1); - a second zone (Z2) for receiving the worn sleepers (22) configured to receive the worn sleepers (22) from the removal equipment (12) of the worn sleepers (22), the second zone (Z2) for receiving the worn sleepers (22) being spaced from the first platform (P1) for conveying the worn sleepers (22) along the longitudinal direction (X) of the transfer wagon (100); - a second platform (P2) for conveying the new sleepers (21) from which the new sleepers (21) can be conveyed to the installation equipment (11) of the new sleepers (21), the second platform (P2) of conveying the new sleepers (21) being distant from the first zone (Z1) for receiving and unstacking the new sleepers (21) along a longitudinal direction (X) of the transfer wagon (100); the transporter (50) being located, with respect to the longitudinal direction (X) of the transfer wagon (100), between the first reception area (Z1) and the second platform (P2), and between the first platform (P1) and the second reception area (Z2), the transporter (50) being configured to transfer the new sleepers from the first reception area (Z1) to the second platform (P2 ) of conveying and to transfer the worn sleepers from the second reception area (Z2) to the first conveying platform (P1). Sleeper transfer wagon (100) according to Claim 1, characterized in that the conveying platform (P1, P2) and the reception area (Z1, Z2) are located at different heights. Sleeper transfer wagon (100) according to claim 1 or 2, characterized in that the frame (60) supporting the transporter (50) is contained in a volume delimited laterally by a template of the sleeper transfer wagon (100) , preferably by a template of its frame (110). Sleeper transfer wagon (100) according to any one of the preceding claims, characterized in that the transporter (50) comprises a gripping system (51) of at least one sleeper (21, 22) suspended from a suspension system. lifting (52) movable relative to the frame (60), the gripping system (51) preferably comprising a lifting beam configured to transport a plurality of cross members (21, 22) grouped together by package. Sleeper transfer wagon (100) according to claim 4, characterized in that the lifting system (52) is carried by a shuttle (53) movable in translation with respect to the frame (60). Sleeper transfer wagon (100) according to Claim 5, characterized in that the frame (60) comprises rails (61) for guiding and supporting the mobile shuttle (53), located above the at least one. a reception area and the at least one conveying platform, preferably above the first reception area (Z1) and the second conveying platform (P2), and preferably also above the second reception area (Z2) and the first conveying platform (P1). Sleeper transfer wagon (100) according to any one of the preceding claims, characterized in that the first conveying platform (P1) is located at a height greater than that of the first reception zone (Z1) and / or in that the second conveying platform (P2) is located at a height greater than that of the second receiving zone (Z2). Sleeper transfer wagon (100) according to any one of the preceding claims, characterized in that the first conveying platform (P1) and the first receiving zone (Z1) are closer to a first end ( 101) of the transfer wagon (100) as the second conveying platform (P2) and the second receiving zone (Z2). Sleeper transfer wagon (100) according to any one of the preceding claims, characterized in that it comprises a lifting mechanism (120) in at least one of the reception areas (Z1, Z2), preferably in the first. zone (Z1) for receiving and unstacking the new sleepers (21), configured to position at least one sleeper (21), preferably a bundle of sleepers (21), at a predetermined height. Sleeper transfer wagon (100) according to any one of the preceding claims, characterized in that it comprises at least part of a movement mechanism (130) of sleeper stacks for moving said stacks of sleepers in translation towards at least one of the reception zones (Z1, Z2), preferably towards the first zone (Z1) for reception and unstacking of the new sleepers (21), the displacement mechanism (130) preferably comprising carriages (131) configured to be placed on a guide track (132) located under the stacks of sleepers (21). Sleeper transfer car (100) according to claim 10, characterized in that the movement mechanism (130) is configured to move each carriage (131) back and forth, preferably by a corresponding pitch (p). at a distance greater than a length (1) of a stack of sleepers (21), the moving mechanism (130) being configured so that each carriage carries a stack of sleepers in a forward path, and configured to travel a return path, reverse to the forward path, being unloaded, without moving them. Sleeper transfer wagon (100) according to any one of the preceding claims, characterized in that it comprises a third conveying device (D1), for example for conveying material such as ballast, located vertically above of the ferry (50). Railway works vehicle (1) of the type comprising, for example, equipment for installing (11) new sleepers (21) and / or removing worn sleepers (22), the railway vehicle (1) comprising at least one storage wagon (300) sleepers comprising a sleeper storage area, one or more wagons comprising equipment for laying (11) new sleepers and / or removing worn sleepers (22) from a railway track, characterized in that ' it further comprises a transfer car (100) according to any one of the preceding claims. Sleeper transfer method implemented on a sleeper transfer wagon (100) intended to equip a rail vehicle (1) of the type comprising equipment for laying (11) new sleepers (21), equipment for removing sleepers waste (22) and a sleeper storage area, the transfer wagon (100) comprising a frame (110) supported by at least one set of wheels (112), the transfer wagon (100) comprising a frame (60 ) supported by the frame (110) and fixed relative to the frame (110), the transfer wagon (100) further comprising: - a first zone (Z1) for receiving and unstacking the new sleepers (21) configured to receive the new sleepers (21) coming from the storage area of the rail vehicle (1); - a first platform (P1) for conveying the worn sleepers (22) from which the worn sleepers (22) can be conveyed to the storage area of the railway vehicle (1); - a second zone (Z2) for receiving the worn sleepers (22) configured to receive the worn sleepers (22) from the removal equipment (12) of the worn sleepers (22), the second zone (Z2) for receiving the worn sleepers (22) being remote from the first platform (P1) for conveying the worn sleepers (22) along the longitudinal direction (X) of the transfer wagon (100); - a second platform (P2) for conveying the new sleepers (21) from which the new sleepers (21) can be conveyed to the installation equipment (11) of the new sleepers (21), the second platform (P2) of conveying the new sleepers (21) being distant from the first zone (Z1) for receiving and unstacking the new sleepers (21) along a longitudinal direction (X) of the transfer wagon (100); the transfer method being characterized in that it comprises at least one step of transferring at least one new cross member (21) from the first reception zone (Z1) to the second conveying platform (P2), and a step transfer of at least one worn cross member (22) from the second reception area (Z2) to the first conveying platform (P1), by a single transporter (50) supported by the frame (60), the transporter ( 50) being located, with respect to the longitudinal direction (X) of the transfer wagon (100), between the first reception area (Z1) and the second platform (P2), and between the first platform (P1) and the second reception area (Z2).

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