EP3740617A1

EP3740617A1 - Device for securing a railway apparatus

Info

Publication number: EP3740617A1
Application number: EP19702532.3A
Authority: EP
Inventors: Marc-Henri ELLENBERGER
Original assignee: Matisa Materiel Industriel SA
Current assignee: Matisa Materiel Industriel SA
Priority date: 2018-01-15
Filing date: 2019-01-15
Publication date: 2020-11-25
Anticipated expiration: 2039-01-15
Also published as: JP2021510788A; US20210062433A1; CA3088469A1; WO2019138124A1; BR112020014368A2; CN111886383B; KR102605146B1; AU2019207448B2; CN111886383A; US11976423B2; FR3076840B1; FR3076840A1; JP7241769B2; EP3740617B1; PL3740617T3; KR20200128663A; AU2019207448A1

Abstract

A device (22) for securing a railway apparatus, comprising a support platform (24) and a mechanism (30) for securing the apparatus on the platform (24), the securing mechanism (30) comprising: - at least one guiding slide (32) extending in a longitudinal direction, supported by the support platform (24); and - a member (34) for attaching the apparatus to the platform (24) capable of moving along the guiding slide (32). The securing mechanism (30) also comprises an upper beam (27) supporting the guiding slide (32) and a lower beam (26), connected by means of a connecting member (31) so as to be movable in a direction perpendicular to the longitudinal direction of the guiding slide (32). Moreover, the securing mechanism (30) comprises locking means (52) configured to prevent the movement of the upper beam (27) with respect to the lower beam (26) in said perpendicular direction.

Description

DEVICE FOR STACKING A RAILWAY APPARATUS

TECHNICAL FIELD OF THE INVENTION

The invention relates to a securing device of a railroad apparatus, including a switch. It also relates to a transport vehicle, including a wagon, incorporating such a securing device.

STATE OF THE PRIOR ART

In FR3024470 is described a transport wagon of a railroad apparatus, comprising a support platform of the railroad apparatus, having a bearing surface for the railroad apparatus, the platform carrier being movable between a horizontal loading position and an inclined transport position. The switchgear is fixed to the support platform by a securing mechanism consisting of individual flanges distributed over the entire railway apparatus, arranged between the crosspieces of the switchgear and the platform.

Such a method of attachment, particularly simple, however, has the disadvantage of requiring access to the loading platform to manually come clamp the flanges, so before the switch device is secure. Special precautions are therefore necessary for handling both in the loading and unloading phases, in order to ensure the safety of the personnel.

[0004] In order to make it possible to fix the switchgear to the platform without having to access the platform, the MAT1SA SA company has put on the market since 2006 at least one lashing mechanism for securing a switchgear, with fixing bars, carrying at one end a hook intended to engage with a part of a foot of a rail of the switchgear. Each bar is slidably mounted in a sleeve hinged to the platform so as to pivot about a longitudinal axis which is perpendicular to the bar. The operator can thus maneuver the bar in the manner of a lever, holding it by its free end opposite the hook to rotate it to approach the hook of the foot of the rail, while adjusting the useful length of the bar by sliding it into the sleeve. Once the hook engaged with the foot of the rail, all that remains is to block the sliding of the bar in the sleeve to lock the hook and the switchgear in position relative to the

SUBSTITUTE SHEET (RULE 26) platform. The length of the bar allows the operator to act while remaining at a distance from the hook on the side of the platform. The system thus described is very similar to the system illustrated in WO2014154624A1. 11 is effective, but does not allow to obtain a significant clamping force between the hook and the switchgear, this in particular because the force applied by the hook on the foot of the rail during installation and maintenance. immobilization is in the general direction of the bar, slightly oblique with respect to the horizontal, so with a strong horizontal component which tends to slide the apparatus of way on the platform. This device is also difficult to motorize.

To remedy this, the document FR1653185 proposes a railroad device securing device a support platform whose lashing mechanism comprises a carriage guided by a guide rail, locking means of the carriage relative to to the slide and locking members of the guide rail relative to the platform. The locking members comprise in particular a bevel wedge engaging a corresponding inclined wall of a locking cavity formed in the support platform. Such a device is simple to motorize and makes it possible to obtain a secure handling of the railway apparatus since the movement of the fastener is thus broken down into at least two components, namely a horizontal movement and a vertical movement thanks to to the wedge shape of the hold. However, the realization of the bevel wedge and the associated locking cavity can be complex.

SUMMARY OF THE INVENTION

The invention aims to overcome the disadvantages of the state of the art by providing a securing device of a railroad apparatus that allows a simple and secure handling of the railroad device, either simple to motorize, but also to achieve. Another object of the invention is to adjust precisely the height of the fastening mechanism to adapt to different heights of sleepers, such as those of wood (low height) or concrete (higher height).

For this purpose, the invention relates to a securing device of a railroad apparatus comprising a support platform of the railway apparatus and to the minus a securing mechanism of the railway apparatus on the support platform adapted to pass from a locking position to an unlocking position and vice versa, the securing mechanism comprising: at least one guide rail; extending in a longitudinal direction; at least one fastening member of the track apparatus to the support platform adapted to move along the guide rail;

characterized in that the docking mechanism further comprises:

an upper beam supporting the guide rail; and

a lower beam connected to the support platform,

the upper beam and the lower beam being connected by means of at least one connecting member configured so that the upper beam is displaceable relative to the lower beam in a direction perpendicular to the longitudinal direction of the guide rail,

and in that the securing mechanism comprises locking means of said at least one connecting member, configured to prevent displacement of the upper beam relative to the lower beam.

Thanks to the invention, the movement of the fastener is always decomposed into at least two components, namely a movement of the connecting member in the longitudinal direction of the slide, and a movement of the beam upper in a direction perpendicular to the longitudinal direction of the slide. However, unlike the prior art, the mechanism for this decomposition of the movement into two components is much simpler to manufacture and use. Indeed, two distinct mechanisms allow these movements in two different directions, and not one as in the prior art.

Moreover, since it is the upper beam supporting the guide rail along which moves the fixing member which moves, it is easy to adjust precisely the height of the fastening mechanism for s to adapt to different heights of sleepers. According to a particular embodiment of the invention, the connecting member is an articulated parallelogram assembly comprising at least one transmission link connected to the upper beam and a transfer lever connected to the lower beam controlled by a screw and nut assembly or cylinder, so that the displacement of the upper beam is kinematically related to the displacement of the screw in the nut or respectively the cylinder rod in the cylinder body. This choice of connecting member makes it possible to limit the space requirement and to obtain a good distribution of the forces between the lower beam and the upper beam.

According to another particular embodiment of the invention, the connecting member is a set of screws and nuts, for example of trapezoidal shape, the screw is carried by the lower beam and the nut is carried by the upper beam, so that the displacement of the upper beam is kinematically linked to the displacement of the nut along the screw and the locking is ensured by the tightening torque of the screw and nut assembly. or the cylinder are indeed inexpensive connecting members and particularly simple to achieve. The displacement of the screw in the thread or cylinder in the cylinder body also allows precise control of the displacement of the upper beam.

In order to be able to absorb with the securing device the difference in height of different models of concrete or wooden track apparatus, the displacement of the upper beam travel is at least 130mm.

Preferably, the securing mechanism comprises two upper beams connected to a lower beam, two guide rails and two connecting members respectively connecting each upper beam to the lower beam, the connecting members being adapted to be driven by independently. Thus, one can hang the two ends independently, which avoids a door overhang, the clamping force per hook is constant regardless of the position of the hook in the guide rail. The user is thus relieved of additional vigilance and can afford to be less attentive. The security of handling is thus increased. To facilitate the use of the device, the fastener is moved along the guide rail by a drive mechanism, preferably self-locking, to provide additional security to the device.

According to a preferred embodiment of the invention, the drive mechanism comprises a movable chain capable of moving along the guide rail which is driven by at least two toothed wheels so that the chain mobile forms a loop. The drive with a mobile chain provides a naturally self-locking mechanism, both simple manufacturing and implementation.

According to a particular embodiment, having the advantage of being simple to implement, said at least one of the toothed wheels, said drive wheel, is provided with a drive shaft, said drive shaft. the drive being connected to a motor so as to drive the drive wheel in rotation around said drive shaft.

According to a preferred embodiment of the invention, in order to provide additional security to the device, the drive wheel is provided with a braking system to prevent rotation of the drive wheel around of its drive axis.

According to a preferred embodiment of the invention, the braking system is of the idle control type, and comprises for example a pair of braking disks. Thus, by default, that is to say without power, the braking system prevents the rotation of the drive wheel around its drive axis. It is therefore necessary to supply the braking system to release the brake.

According to a preferred embodiment of the invention, simple implementation and use for operators, the support platform is movable between the loading position and an inclined transport position, preferably by rotation around at least one horizontal pivot axis.

According to a preferred embodiment of the invention, so as to eliminate any muscular effort for the operator, the securing mechanism is controlled by a remote control or a backup remote control in case of failure of the first. Preferably, the fastening mechanism is configured so as to be pivotable about an axis normal to the plane of the support platform, the pivoting of the fastening mechanism being for example provided by drive means comprising cylinders . This makes it possible to adjust the position of the fixing mechanism to compensate for any misalignment.

The invention also relates to a vehicle for transporting a railroad track apparatus, in particular a carriage for transporting a railway track apparatus, characterized in that it comprises a securement system according to the invention mounted on a transport chassis supported by running gear.

BRIEF DESCRIPTION OF THE FIGURES

Other features and advantages of the invention will emerge on reading the description which follows, with reference to the appended figures, in which: FIG. 1 of a transport wagon of a track apparatus incorporating a device stowage device of the switchgear according to one embodiment of the invention, the securing device of the switchgear being in a transport position; Figure 2 is a section on the plane 11-11 of Figure 1; Figure 3 is a view similar to Figure 2 of the securing device of Figure 1, the upper beam is in a first position; FIG. 4 is a top view of a detail of the securement device of FIG. 1, the chains of which have been omitted; Figure 5 is a view similar to Figure 3, illustrating different positions of the fixing member of the securing device according to the invention; Figure 6 is a view similar to Figure 3, illustrating different positions of the securing members of the securement device according to the invention, the upper beam being in a second position; Figures 7 to 9 are detail views of Figure 3 illustrating different positions of fasteners securing device; Figure 10 is a view similar to Figure 3 of a securing device according to a second embodiment of the invention in a first position; Figure 11 is a view similar to Figure 10 of a securing device according to a second embodiment of the invention in a second position; Figure 12 is a top view of the transport car of a switchgear of Figure 1.

DETAILED DESCRIPTION OF EMBODIMENTS

In Figure 1 is illustrated a transport wagon 10 being loaded a track apparatus 12 (shown in Figure 3) of large size, and in particular of greater width than the circulation gauge 14 prescribed for transport rail. The track apparatus 12 is for example, as can be seen in FIG. 3, a switch comprising rails 16 and switch rails 18.

As can be seen in Figure 2 in particular, the transport car 10 comprises a frame 20 whose width is less than or equal to the width of the circulation template 14. The lashing of the track apparatus 12 to transport wagon is provided by a securing device 22 comprising a support platform 24 of the track apparatus 12 articulated to the frame 20 by a hinge 25 allowing pivoting about a horizontal axis parallel to the longitudinal axis ZZ of the frame 20, which is itself normal to the plane of Figure 2.

Figures 1 and 2, the support platform 24 is inclined relative to a reference plane parallel to the plane of the track on which the car of transport 10. One or more hydraulic cylinders (not shown), or any other type of motorized actuator, make it possible to pivot the tilting support platform 24 between a loading position, illustrated in FIG. 3 in which the support platform 24 is in a loading plane P (shown in dashed lines in FIGS. 3 and 5 to 11, and which corresponds to the plane of FIG. 4), and an inclined transport position illustrated in FIGS. 1 and 2.

The support platform 24 is preferably in two or more parts to make the structure of the securing device 22 less rigid. In this case, the support platform 24 is preferably a mechanically welded structure. It comprises rails 24a and cross members 24b on which is mounted at least one lashing mechanism 30. This complete assembly can either be in the raised position (FIG. 2) or pivot about the hinge 25 to a horizontal position for loading and unloading. The lashing device 22 further comprises a lashing mechanism 30 comprising a lower beam 26 and an upper beam 27 connected to the support platform 24. The lashing mechanism 30 is provided for securing the lane apparatus 12 to the support platform 24.

In the embodiment illustrated in the figures, in particular in Figures 1 to 9, the securing device 22 comprises four securing mechanisms 30. It will be noted that the securing device 22 may comprise less or more of a lashing mechanism as required, in particular according to the number and size of the lanes to be transported.

The docking mechanism 30 are here movable on the platform 24 along the longitudinal axis ZZ of the frame 20, independently from each other. This makes it possible to adapt to the various constraints of the loading or the transport, as well as to the dimensions or form of the apparatus of way to be transported.

The upper beam 27 and the lower beam 26 are connected via at least one connecting member 31. This connecting member 31 configured so that the upper beam 27 is movable relative to the lower beam 26 in a direction perpendicular N to the longitudinal direction L of a guide rail 32 carried by the upper beam 27 which will be described later. In in particular, the upper beam 27 and the lower beam 26 are connected by means of two connecting members 31 arranged on either side of a plane of symmetry S of the support platform 24, which is normal to the plane of loading P.

As will be detailed below, each lashing mechanism 30 is adapted to move from a locking position, in which the track apparatus 12 is securely stowed to the support platform 24, and a position unlocking device in which the track apparatus 12 can be detached from the support platform

24.

For this purpose, each securing mechanism 30 comprises a guide rail 32, supported by the upper beam 27, extending in a longitudinal direction L, supported by the support platform 24. In particular, the longitudinal direction L of the guide rail 32 is, when the support platform 24 is in the loading position, perpendicular to the longitudinal axis of the frame 20 or to the axis of the railway, while being contained in the free plane formed by the support platform 24.

Each securement mechanism 30 further comprises fasteners 34 of the track apparatus 12 to the support platform 24 adapted to move along these guide rails 32. In the embodiment illustrated in FIG. the figures, the fasteners 34 are hooks.

As can be seen in Figure 3, each fastener 34 or hook comprises a hooking zone 35 intended to engage with the foot 18a of one of the rails 18 of the switch 16.

A drive mechanism 36 is associated with each fastener 34 and allows its movement along the associated guide rail 32. This drive mechanism 36 is preferably self-locking, to prevent inadvertent movement of the fastener 34 and in particular during the displacement of the transport car 10.

In the embodiment shown in the figures, and as can be seen in particular in FIGS. 3 and 4, each drive mechanism 36 comprises here a movable chain 38 adapted to move along the guide rail 32, to which the fixing member 34 is connected. More particularly, each chain 38 is guided by the associated guiding slide 32 so that the fixing member 34 can be moved along the guide slide 32. The guide slide 36 thus defines a linear trajectory, and preferably rectilinear, for the fastener 34. This trajectory is contained in the loading plane P. In practice, the slideway 36 is constituted by a generally U-shaped section rail, thus forming a groove along which the chain 38 can be moved.

Each chain 38 is driven by at least two toothed wheels 40, in particular so that the chain 38 forms a loop. In the embodiment illustrated in the figures, the toothed wheels 40 are six in number. Two toothed wheels 40 are disposed at a first end 38a of the loop which is closest to the center of the platform 24, and four at the opposite end 38e of the loop being closest to the free end 32a of the guide rail 32.

One of these gears 40, said drive wheel 42, is provided with a drive shaft 44 connected to a motor 46, for example a hydraulic motor, so as to drive the drive wheel 42 into rotation around this drive axis 44. The diameter of the drive wheel 42 is greater than that of the other gears 40 to facilitate the drive by the motor 46.

The drive wheel 42 is here disposed at the end 38e of the loop and is also arranged lower than the other gear wheels 40, that is to say closer to the path on which the wagon runs. transport 10 in the loading position. Note that the arrangement and the number of the gears 40 can of course vary. For example, it may be envisaged that there is only one toothed wheel 40 at each end of the loop formed by the chain 38. It is also possible to arrange the drive wheel 42 at the end 38a of the loop rather than at the 38th end.

The drive wheel 42 is provided with a braking system 48 for preventing the rotation of the drive wheel 42 about its drive axis 44. Preferably, the braking system 48 is of command type resting and comprises for example a pair of braking disks 50. The braking disks are arranged on either side of the drive wheel 42, as can be seen in Figure 4, where for reasons of clarity , the chain 36 has been omitted.

The braking system 48 is configured so that without power, it prevents the rotation of the drive wheel 42 about its axis. In other words, it is necessary to supply the braking system 48 to loosen the braking discs 50. This type of braking system is known per se to those skilled in the art, it will not be described in more detail here.

The locking mechanism 30 being self-locking, the position of the fastener 34 is locked in the longitudinal direction of the guide rail 32. It prevents its movement in a first direction. More specifically, the chain 38 can not move along the guide rail 32 without, on the one hand, disengage it from the braking system 50, and on the other hand, the driving of the drive wheel 42 by 46. A double locking security is thus provided to prevent the movement of the fastener 34 in the longitudinal direction of the guide rail 32.

The securing mechanism 30 further comprises locking means 52 of the connecting member 31, configured to prevent the displacement of the upper beam 27 relative to the lower beam 26.

Preferably, as illustrated in FIGS. 3 to 9, the connecting member 31 is a set of screws and nuts 52, for example of trapezoidal section, carried by the upper beam 27, so that the displacement of the upper beam 27 is kinematically linked to the displacement of the nut 56 along the screw 54 and the locking is ensured by the tightening torque of the screw and nut assembly 52. In this particular embodiment, The locking means 52 are constituted by the tightening of the screw 54 in the nut 56 carried by the lower beam 26. It may of course be envisaged that the shape of the section of the screw 54 differs.

The tightening of the screw and nut assembly 52 makes it possible to prevent the displacement of the upper beam 27 with respect to the lower beam 26 according to a direction perpendicular to the guide rail 32, which is also normal to the loading plane defined by the free surface of the support platform 24 (this plane being shown schematically by the dotted line P in Figure 3). The attachment zone 35 of the fastener 34 being in plane contact with the foot of the rail 16a in a plane normal to this direction, the position of the fixing member 34 is thus locked in a second direction perpendicular to the longitudinal direction to guide rail 32.

The movement and tightening of the screw and nut assembly 52 may be effected by means of drive means known per se to those skilled in the art, in particular with the aid of a motor. We will not describe them in detail here.

Another advantage of the choice of a set of screws and nut 52 as connecting member 31 is to choose the race of the nut 56 along the screw54, in other words to adjust its height. Thus, as can be seen in FIG. 5 illustrating the different heights of sleepers 18, and in FIG. 6 illustrating two different positions of the screw 52 in the thread 54, the attachment zones 35 can be located, in the fixing position, at different heights above the lower beam 26. This allows the mechanism to be used interchangeably with apparatus of wooden sleepers (of low height) and concrete sleepers 18 (of higher height). For example, given the usual heights of the concrete and wooden sleepers 18, the travel path of the upper beam 27, in other words of the nut 56 along the screw 54 in this particular embodiment, is chosen. so that it is at least 130mm.

In a variant not shown in the figures, the screw is replaced by a jack and the screw thread by a cylinder body.

With the self-locking function of the securing mechanism 30 on the one hand, and the presence of the locking means 52 of the connecting members 31 on the other hand, the displacement of the fastener 34 is respectively prevented in the longitudinal direction L of the guide rail 32 and the normal direction N in this longitudinal direction. The securing safety of the track apparatus 12 to the support platform 24 of the securing device 22 is thus ensured in a simple manner. and reliable, as will be continued to describe the execution according to a sequence shown in Figures 7 to 9.

As can be seen in Figure 12, the securing mechanisms 30 are configured so as to be pivotable about an axis normal to the plane of the support platform 24, the pivoting of the fastening mechanism 30 being by example provided by drive means comprising jacks 76 pivoting. The stroke of the cylinders 76 is carried out in the plane of the platform 24, transversely to the longitudinal axis ZZ of the wagon 10, for example perpendicular to this longitudinal axis ZZ.

In Figure 7, the track apparatus 12, which can be seen a rail 18, has been placed on the support platform 24. The fasteners 34 are retracted so that they are in position. below the loading plan, shown schematically by the dashed line P in Figure 7, and this to avoid interference with the switchgear 12 during handling.

To carry out the lashing of a track apparatus 16 to the platform 24, an operator adjusts the positioning of the screw 54 in the thread 56 by controlling the associated engine as a function of the height of the cross member 18. so that the securing mechanism 30 comes into contact with the foot of the rail 16a.

Then, the operator releases the braking system 48 and controls the motor 46 to allow the driving of the drive wheel 42 and thus the movement of the chain 36 along the guide rail 32. 11 adjusts then the positioning of the fasteners 34, so as to bring them into engagement with the foot of the rail 18a of the track apparatus 12. At the end of this operation, the securement mechanism 30 is in the transient position illustrated in Figure 8.

Finally, the operator adjusts the positioning of the screw 54 in the thread 56 by controlling the associated motor until the fastener 34 exerts a sufficient clamping force on the foot of the rail 16a. Preferably, a light indicates that the clamping force is reached. Once the track device 12 and secured to the support platform 24, it is possible to raise it in the position of Figures 1 and 2 for transport.

The unloading operations take place in the reverse order of the loading operations.

Where appropriate, only one of the two fasteners 34 may be positioned in engagement with one of the rails 18 of the track apparatus 12, the other fastener 34 remaining in a free position along the slide rail 32. Preferably, two lashing mechanisms 30 are provided as illustrated, the fasteners 34 of which are turned transversely towards each other, that is to say so that the zones fastening 35 are facing each other. With this arrangement, when the two fasteners 34 are engaged, the switchgear is locked laterally.

In a second embodiment of the invention illustrated in Figures 10 and 11, the securing mechanism 30 differs in that the connecting member 31 is an assembly forming parallelogram 58 articulated comprising at least one transmission rod 62 connected to the upper beam 27, and a transfer lever 60 connected to the lower beam 29 controlled by a screw and nut 64, so that the displacement of the upper beam 27 is kinematically linked to the displacement of the screw 65 in the nut 67.

More specifically, in the embodiment illustrated in the figures, the parallelogram assembly 58 comprises a transmission rod 62 of longitudinal shape, extending in a direction substantially parallel to the direction of extension of the upper beams 27. and lower 29. The transmission rod 62 is preferably thinned at its center so as to lighten it. The transmission rod 62 is connected to each of its free ends 62a, 62b to two respective transfer levers 60a, 60b. This connection is made for example by means of two shafts 68 passing through both the transmission rod 62 and the transfer levers 60a, 60b extending in a normal direction the longitudinal direction of the transmission rod 62, c that is to say in the plane normal to FIGS. 10 and 11. The first transfer lever 60a, having a C-shaped or boomerang shape, is connected at a first end to the screw and nut assembly 64 by an axis 66 extending in a normal manner to the longitudinal direction of the transmission rod 62, that is to say in the plane normal to Figures 10 and 11. The set of screws and nut 64 is connected to the upper beam 27 so that the movement of the screw 65 in the nut 67 moves the transfer lever 60a towards the upper beam 27. Because the transmission rod 62 is linked to the transfer lever 60a, it is also moved upwards in the figure.

Furthermore, the transmission rod 62 is also connected at its end 62a, still via the transfer lever 60a, to the upper beam 27, since the transfer lever 60a is connected to the upper beam 27 at its free end. opposite to that where it is connected to the transmission rod 62. This connection is via an axis 70 also extending in a normal manner the longitudinal direction of the transmission rod 62 passing through the transfer lever 60a, itself connected to an axis 72 passing through the upper beam 27, these two shafts 70 and 72 being connected by a tube 74. It will be noted that the connection of the two shafts 70 and 72 has been chosen in the form of a tube so as to reinforce the structure, but it could be of a different nature.

Symmetrically, the transmission rod 62 is also connected, at its opposite end 62b, via the transfer lever 60b (also C-shaped) to the upper beam 27, since the transfer lever 60b is also connected the upper beam 27 via an axis 70 also extending in a normal manner the longitudinal direction of the transmission rod 62 passing through the transfer lever 60a, itself connected to an axis 72 passing through the upper beam 27 these two axes 70 and 72 being connected by a tube 74.

In a variant of this second embodiment, not shown in the figures, the screw and nut assembly is replaced by a cylinder assembly and cylinder body.

Furthermore, in this second embodiment illustrated in Figures 10 and 11, the securing mechanism 30 comprises two upper beams 27a, 27b connected to a lower beam 26, two guide rails 32, and two connecting members 31 respectively connecting each upper beam 27a, 27b to the lower beam 26, the connecting members 31 being able to be controlled independently. More specifically, preferably, the two upper beams 27a, 27b are each of a length corresponding to half of the upper beams 27 illustrated in the previous embodiment. Thus, one can hang the two ends independently, which avoids a door overhang, the hook clamping force being constant regardless of the position of the hook in the guide rail. The user is thus relieved of additional vigilance and can afford to be less attentive. The security of handling is thus increased. Naturally, the examples shown in the figures and discussed above are given for illustrative and not limiting. Various variants are conceivable.

In particular, the loading and unloading position of the platform is not necessarily horizontal, but may be on the contrary inclined, naturally less than the transport position.

Furthermore, in practice, the same transport car can be equipped with a number of securement mechanisms different from that described, distributed over the length of the platform, in order to adapt locally to the configuration of the switchgear. It may also provide other drive means of the fastener, such as a carriage guided by the guide rail provided with rolling tracks on which rollers or balls associated with the carriage or sliding for feet formed on the carriage.

It is explicitly provided that one can combine the different embodiments illustrated to propose others.

It is emphasized that all the features, as they are apparent to a person skilled in the art from the present description, drawings and attached claims, even if concretely they have been described in relation to with other specified characteristics, both individually and in any combinations, may be combined with other characteristics or groups of features disclosed herein, provided that this has not been expressly excluded or that technical circumstances make such combinations impossible or meaningless.

Claims

1. A securing device (22) for a railway track apparatus (12) having a support platform (24) for the railway track apparatus (12) and at least one lashing mechanism (30) for railroad apparatus (12) on the support platform (24) adapted to move from a locking position to an unlocking position and vice versa, the securing mechanism (30) comprising:

at least one guide rail (32) extending in a longitudinal direction;

at least one fastener (31) of the track apparatus (12) to the support platform (24) movable along the guide rail (32); and

characterized in that the securing mechanism (30) further comprises:

- an upper beam (27) supporting the guide rail (32); and

a lower beam (26) connected to the support platform (24),

the upper beam (27) and the lower beam (26) being connected via at least one connecting member (31) configured so that the upper beam (27) is displaceable relative to the lower beam (26); ) in a direction perpendicular to the longitudinal direction of the guide rail (32),

and in that the securing mechanism (30) comprises locking means (52) of said at least one connecting member (31), configured to prevent displacement of the upper beam (27) relative to the lower beam ( 26).

The securing device (22) according to claim 1, wherein said at least one connecting member (31) is an articulated parallelogram assembly (58) comprising at least one transmission link (62) connected to the upper beam (27) and a transfer lever (60a) connected to the lower beam (26) controlled by a screw and nut assembly (64) or a jack, so that the displacement of the upper beam (27) is kinematically linked to the displacement of the screw (65) in the nut (67) or respectively of the cylinder rod in the cylinder body.

3. Securing device (22) according to claim 1, wherein said at least one connecting member (31) is a set of screw and nut (52), for example of trapezoidal shape, whose screw (54) is carried by the lower beam (26) and the nut (56) is carried by the upper beam (27), so that the displacement of the upper beam (27) is kinematically related to the displacement of the nut (56) along the screw (54) and that the locking is ensured by the tightening torque of the screw and nut assembly (52).

4. Securing device (22) according to any one of the preceding claims, wherein said at least one connecting member (31) is a jack (52), for example hydraulic, whose body is carried by the beam lower (26) and the rod (56) is carried by the upper beam (27), so that the displacement of the upper beam (27) is kinematically related to the displacement of the cylinder rod in the cylinder body and that the locking (52) is ensured by a locking system of the rod (56).

5. Securing device (22) according to claim 2 or 3, wherein the displacement stroke of the upper beam (27) relative to the lower beam (26) is at least 130mm.

The securing device (22) according to any one of the preceding claims, wherein the securing mechanism (30) comprises two upper beams (27a, 27b) connected to a lower beam (26), two guide rails (32a, 32b), and two connecting members (31a, 31b) respectively connecting each upper beam (27a, 27b) to the lower beam (26), the connecting members (31a, 31b) being adapted to be driven in a controlled manner. independent.

The securing device (22) according to any one of the preceding claims, wherein the fastener (34) is moved along the guide rail (32) by a drive mechanism (36), preferably self-locking.

The securing device (22) according to claim 7, wherein the driving mechanism (36) comprises a movable chain (38) movable along the guide rail (32) which is driven by a at least two toothed wheels (40) so that the movable chain (38) forms a loop.

The securing device (22) according to claim 8, wherein said at least one of the toothed wheels (40), said driving road (42), is provided with a drive shaft (44), said drive shaft (44) being connected to a motor (46) so as to drive the drive wheel (42) rotatably around said drive shaft (44).

The securing device (22) according to claim 9, wherein the drive wheel (42) is provided with a braking system (48) for preventing rotation of the drive wheel (42). around its drive shaft (44).

1 1. A stowage device (22) according to claim 10, wherein the braking system (48) is of the idle control type and comprises for example a pair of brake disks (50).

A securing device (22) according to any one of the preceding claims, wherein the support platform (24) is movable between the loading position and an inclined transport position, preferably by rotation about at least a horizontal pivot axis.

13. Securing device (22) according to any one of the preceding claims, wherein the securing mechanism is controlled by a remote control or a backup remote control in case of failure of the first.

The docking device (22) according to any one of the preceding claims, wherein the attachment mechanism (30) is configured to pivot about an axis normal to the plane of the support platform (24). , the pivoting of the fixing mechanism (30) being for example provided by drive means comprising jacks (77).

15. Transport vehicle (10) for a railroad apparatus (12), in particular a transport car (10) for a railway track apparatus, characterized in that it comprises a securing device (22) according to any one of the preceding claims mounted on a transport chassis supported by running gear.