FR3122632A1 - Railway vehicle intended to move in a longitudinal direction of travel forwards or backwards - Google Patents

Abstract

rail vehicle planned to move in a longitudinal direction of movement forwards or backwards This railway vehicle (10) comprises: - a fixed part (13) comprising a frame (14); - a mobile part (18) comprising a platform, a driving console and a seat (24); and - a pivoting connection configured so that the movable part (18) is rotatable relative to the frame (14) about an axis of revolution (A) at least between first and second positions. In the first and second positions, a driver (26) seated on the seat (24) has a field of vision (30) facing longitudinally forward and longitudinally rearward respectively. The vehicle (10) includes a lock configured to lock the movable part (18) in rotation with respect to the frame (14) at least in the first and second positions. Figure for abstract: Figure 1

Description

Railway vehicle intended to move in a longitudinal direction of travel forwards or backwards

The present invention relates to a railway vehicle intended to move in a longitudinal direction of movement forwards or backwards, comprising:

- a fixed part comprising a frame extending along a longitudinal axis;

- a movable part comprising a platform, a driving console fixed to the platform and a seat for a driver fixed to the platform; and

- a pivoting connection of the mobile part on the chassis, configured so that the mobile part is mobile in rotation relative to the chassis around an axis of revolution substantially perpendicular to the longitudinal axis of the chassis at least between first and second positions .

Currently, it is common to install in the cabs of shunting locomotives two sets of redundant driving equipment each corresponding to use in a direction of movement of the vehicle. Indeed, two seats and two driving consoles are installed in each cabin allowing the driver to position himself in one driving direction or another. This redundant driving equipment occupies large volumes and masses and generates additional costs, in particular because of a high need for air conditioning and heating due to the large volume of the driving cab. They require the driver to change driving position when changing direction.

In order to reduce these costs and to optimize the space of the cabin, it is known, in particular from FR 2 903 363 for a work machine, to eliminate redundant equipment and to install a driving console and an armchair adaptable to two directions of vehicle movement. The driving console and the chair are mounted on a rotating plate relative to the vehicle chassis allowing the driving position to be oriented in one direction or another.

However, the driver's field of vision is reduced and does not allow the high and low signals to be seen correctly according to the EN16186 standard of December 2018.

In addition, driving safety is compromised. Indeed, the rotation of the driver's seat is not blocked when controlling the machine, which can lead to untimely rotations of the driver's seat and cause drivers to lose control of the machine.

An object of the invention is to make it possible to carry out driving operations in the two directions of movement forwards or backwards in accordance with the standards, in particular concerning the driver's field of vision and in a safe manner.

To this end, the subject of the invention is a railway vehicle designed to move in a longitudinal direction of movement forwards or backwards, characterized in that in the first and second positions a driver seated on the seat has a field of vision facing longitudinally forwards and longitudinally backwards respectively, the vehicle comprising a lock configured to block the movable part in rotation relative to the chassis at least in the first and second positions.

The railway vehicle according to the invention may comprise one or more of the following characteristics, taken separately or in any technically possible combination:

- The lock comprises an indexing pin mounted on one of the movable part and the fixed part, and two notches provided on the other of the movable part and the fixed part, each adapted to receive the finger of indexing to lock the mobile part in rotation relative to the frame.

- The indexing finger is movable between a position of engagement in the notches and a retracted position in which the movable part is able to move in rotation relative to the frame.

- The fixed part comprises two superstructures mounted longitudinally on either side of the movable part, each superstructure having a prismatic shape and extending in the longitudinal direction between the movable part and an edge of the chassis, each superstructure having a height at near the upper moving part from that near the edge of the frame.

- The first and second positions are angularly offset from each other by 180° around the axis of revolution.

- The pivoting connection comprises a driving wheel causing by adherence or by obstacle the rotation of the plate.

- The pivoting connection comprises a connecting rod mounted on the one hand movable in translation on the fixed part and on the other hand fixed to the plate, and causing the plate to rotate by translation.

- The movable part comprises walls fixed to the plate defining a closed driver's cab.

- The driver's cab has two escape doors.

The invention also relates to a train comprising a railway vehicle as described above.

The invention will be better understood on reading the following description, given solely by way of example, and made with reference to the appended drawings, in which:

- the is a side view of a rail vehicle in a first direction of travel;

- the is a side view of the railway vehicle of the in a second direction of travel;

- the is a top view of a first driving position in the direction of travel of the ;

- the is a top view of the driving position of the in the direction of movement of the ;

- the is a schematic view of the swivel link lock;

- the is a schematic view of the pivoting connection according to a first embodiment;

- the is a schematic view of the pivoting connection according to a second embodiment;

- the is a top view of a variant of the mobile part in which the walls of the driver's cab are fixed to the circular plate.

In what follows, the orientations are the usual orientations of a railway vehicle. Thus, the terms "front", "rear", "left", "right" are understood in relation to a first direction of movement of a railway vehicle forwards.

Figures 1 and 2 illustrate a railway vehicle, and more particularly a locomotive 10, designed to move in a longitudinal direction of movement forwards or backwards. The longitudinal direction corresponds to the direction of the rails 12 on which the railway vehicle travels.

This railway vehicle comprises a fixed part 13, itself comprising a frame 14 extending along a longitudinal axis.

The fixed part further comprises wheels 16 mounted on the frame 14 and rolling on rails 12.

This railway vehicle also comprises a mobile part 18, comprising a platform 20, a driving console 22 fixed to the platform 20 and a seat 24 for a driver 26 fixed to the platform 20.

This railway vehicle also comprises a pivoting connection 28 of the movable part 18 on the frame 14.

The pivoting connection 28 is configured so that the movable part 18 is rotatable relative to the frame 14 around an axis of revolution A at least between first and second positions.

The axis of revolution A is substantially perpendicular to the longitudinal axis of the frame 14.

In the first position, a driver 26 seated on the seat 24 has a field of vision 30 facing longitudinally forward. In the second position, a driver 26 seated on the seat 24 has a field of vision 30 facing longitudinally rearward.

This railway vehicle further comprises a lock 32 configured to block the movable part 18 in rotation with respect to the frame 14 at least in the first and second positions.

As shown in Figures 1 and 2, the frame 14 comprises a decking 34 extending in a longitudinal direction between a front edge 36 and a rear edge 38 and two coupling buffers 35 mounted at each of its front edges 36 and rear 38.

As illustrated in Figures 3 and 4, the plate 20 is for example of circular shape.

Advantageously, the axis of revolution A of the plate is substantially perpendicular to the longitudinal axis of the frame 14.

The plate 20 is linked to the frame 14 by the pivoting link 28 locked by the lock 32.

The first and second positions are, for example, angularly offset relative to each other by 180° around the axis of revolution A.

The seat 24 and the driving console 22 are fixed on the plate 20. Advantageously, the seat 24 is mounted substantially in the center of the board 20.

The illustrates a first position of the movable part 18 in which the driver 26 seated on the seat 24 has a field of vision 30 facing forward.

The illustrates a second position of the movable part 18 in which the driver 26 seated on the seat 24 has a field of vision 30 facing rearward.

As shown in the , the pivoting connection 28 comprises a drive wheel 40 driving by adhesion or obstacle the rotation of the movable part 18.

The drive wheel 40 is mounted on the frame 14 and is in external contact with the circular plate 20.

Advantageously, the drive wheel 40 is made of a material preventing relative sliding between the drive wheel 40 and the circular plate 20.

The drive wheel 40 is able to be rotated by the energy available on board the locomotive 10.

The energy available is, for example, of a pneumatic, hydraulic or electrical nature.

The rotation of the drive wheel 40 is therefore capable of driving the rotation of the circular plate 20 by adhesion.

In a variant not shown, one of the driving wheel 40 and of the plate 20 has at least one notch and the other of the driving wheel 40 and of the plate 20 has at least one tooth. For example, drive wheel 40 is a toothed wheel and plate 20 has notches on all or part of its periphery. So that the rotation of the drive wheel 40 causes the rotation of the plate 20 by obstacle and no longer by adhesion.

In a variant shown in the , the pivoting connection 28 comprises a connecting rod 42 mounted on the one hand movable in translation on the fixed part 13 and on the other hand fixed to the plate 20, and causing by translation the rotation of the circular plate 20.

The connecting rod 42 is mounted on the one hand movable in translation on the frame 18 and on the other hand fixed to the plate 20.

The first end 44 of the connecting rod 42 is connected by a connection allowing a pivoting and a translation relative to the frame 14. Advantageously, an actuator moves the first end 44 in translation relative to the frame 14. For example in the example represented on the , the direction of translation of the connecting rod 42 is a radial direction of the plate 20.

The second end 46 of the connecting rod 42 is linked by a pivot connection to the plate 20.

The longitudinal translation of the connecting rod 42 on the frame 18 causes the rotation of the circular plate 20.

The connecting rod 42 is moved in translation by the energy available on board the locomotive 10. The connecting rod 42 can be chosen to be of constant length or of variable length.

As shown on the , the lock 32 comprises an indexing finger 48 mounted on one of the movable part 18 and of the fixed part 13 or vice versa, and two notches 50,52 provided on the other of the movable part 18 and of the part fixed 13, each adapted to receive the indexing pin 48 to lock the movable part 18 in rotation with respect to the frame 14.

The indexing finger 48 is movable between a position of engagement in the notches 50,52 and a retracted position in which the movable part 18 is able to move in rotation relative to the frame 14.

The lock 32 defines a locked configuration locking the plate 20 in rotation in the first or second position and an unlocked configuration in which the plate 20 is able to move in rotation relative to the frame 14.

The passage of locking 32 from the locked configuration to the unlocked configuration is controlled by the TCMS (train control management system) and is only carried out under previously defined operating conditions.

The operating conditions are, for example, the receipt of an unlocking order by the driver 26 and the availability on board of the energy necessary for the rotation of the plate 20. Advantageously, one of the operating conditions is the stopping of the vehicle 10.

The passage of the lock 32 from the unlocked configuration to the locked configuration takes place automatically.

As illustrated on the , the notches 50, 52 are provided on the frame 14 angularly offset from each other by 180° around the axis of revolution A.

The indexing finger 48 is mounted in a groove 54 of the circular plate 20. The indexing finger 48 is movable between a position of engagement in one of the notches 50, 52 and a retracted position inside the groove 54.

When the indexing finger 48 is engaged in one of the notches 50.52, the pivoting link 28 is blocked. The lock 32 is therefore in the locked configuration.

The engagement of the indexing finger 48 in the notch 50 for example blocks the mobile part 18 in the first position and respectively the engagement of the indexing finger 48 in the notch 52 for example blocks the mobile part 18 in the first position. second place.

When the indexing finger 48 is in the retracted position inside the groove 54, the indexing finger 48 does not block the rotation of the plate 20. The lock 32 is therefore in the unlocked configuration.

The indexing finger 48 is for example linked to the plate 20 by a spring 56 allowing the indexing finger 48 to pass from the retracted position to the engagement position in a stable and safe manner.

As illustrated in Figures 1 and 2, a driver's cab 58 is mounted on the frame 14.

Driver's cab 58 includes walls 60 and a roof 62 defining an enclosed driver's cab.

As illustrated in Figures 3 and 4, the seat 24 and the driver's console 22 are installed inside the driver's cab 58.

The walls 60 are fixed to the frame 14 and the plate 20 is inside the driver's cab 58. The fixed part 13 therefore also includes the walls 60 defining the closed driver's cab 58.

In a variant shown in the , the movable part 18 comprises the walls 60 fixed to the circular plate 20 defining a closed driver's cab 58. The driver's cab 58 in its entirety is therefore rotatable along the axis of revolution A between a first and a second position .

As shown in the , the driver's cab 58 comprises two evacuation doors 64. The fixed part 13 also comprises two superstructures 68,70 mounted longitudinally on either side of the movable part 18.

As illustrated in Figures 1 and 2, the two superstructures 68, 70 are mounted on the frame 14 longitudinally on either side of the driver's cab 18. One of the superstructures 68 is mounted between the driver's cab 58 and the edge front 36 of frame 14, the other superstructure 70 is mounted between the driver's cab 58 and the rear edge 38 of frame 14.

The superstructures 68, 70 may for example be electrical or mechanical modules necessary for the proper functioning of the railway vehicle 10.

Each superstructure 68, 70 has a prismatic shape and extends in the longitudinal direction between the movable part 18 and an edge 36, 38 of the frame 14 and has a height near the movable part 18 greater than that near the edge 36 .38 of chassis 14.

As illustrated on the , the front superstructure 68 has a prismatic shape and the height of the superstructure near the driver's cab 58 is greater than that near the front edge 36 of the chassis 14. The field of vision 30 of the driver 26 forwards does not is not reduced.

Similarly, the rear superstructure 70 has a prismatic shape and the height of the superstructure near the driver's cab 58 is greater than that near the rear edge 38 of the frame 14. As shown in the , the field of vision 30 of the driver 26 to the rear is not thereby reduced. It is possible to attach such a railway vehicle 10 to other railway vehicles such as goods wagons for example, forming a train comprising a railway vehicle 10.

A method for switching from a railway vehicle 10 adapted for a first direction of travel to a railway vehicle 10 adapted for a second direction of travel will now be described.

For example, the first direction of travel is a forward direction of travel as shown in Figures 1 and 3 and the second direction of travel is a reverse direction of travel as shown in Figures 2 and 4.

The railway vehicle 10 is therefore initially configured to move forward.

As shown in the , the movable part 18 is locked in its first position so that the field of vision 30 of the driver 26 seated on the seat 24 is oriented forwards.

Lock 32 is in locked configuration. The indexing finger 48 is engaged in the notch 50.

The driver 26 issues a passage control command in the second configuration, allowing to move backwards.

The TCMS receives the command order and checks whether the operating conditions have been complied with, such as stopping the vehicle 10 for example.

If the operating conditions are correctly observed, the TCMS sends a locking unlocking command 32.

The indexing pin 48 therefore passes into the retracted position inside the groove 54 of the plate 20.

The drive wheel 40 or the connecting rod 42 is then set in motion driven by the energy available on board causing the rotation of the circular plate 20.

The plate 20 performs a rotational movement of 180° around the axis A until the groove 54 is opposite the notch 52.

The rotary movement of the circular plate 20 is then stopped.

The indexing finger 48 engages in the notch 52. The lock 32 therefore goes into the locked configuration and the pivoting link 28 is blocked.

The movable part 18 is thus fixed in its second position so that the field of vision 30 of the driver 26 seated on the seat 24 is oriented towards the rear, as shown in the .

The railway vehicle 10 is thus in a configuration allowing it to move backwards, as shown in the .

The method of switching from the backward moving direction to the forward moving direction is the same, considering the backward moving direction as the first moving direction and the forward moving direction as the second direction of travel.

The railway vehicle according to the invention therefore makes it possible to carry out driving operations in both directions of movement forwards or backwards in complete safety without a change of position for the driver.

The presence of the two superstructures 68,70 makes it possible to guarantee an optimal field of vision 30 for the driver 26 and visibility of the high and low signals defined by standard EN16186 of December 2018 in both directions of movement.

In addition, the volume and the mass of the driving cab 58 are reduced in comparison with a cab comprising two driving positions, which allows a reduction in costs, in particular in air conditioning and heating.

In addition, the invention has the advantage that when changing from one direction of travel to another, the driver 26 does not need to get up and change driving position. The transition time is therefore reduced and security is reinforced. The driver can thus remain in control when changing direction.

In addition, the impossibility of unlocking the lock 32 outside the predefined security conditions such as stopping the vehicle for example, makes it possible to avoid unexpected rotations of the plate 20 likely to surprise the driver and cause him to lose control of the vehicle. or even hurt him.

Claims (10)

Railway vehicle (10) intended to move in a longitudinal direction of movement forwards or backwards, comprising:
- a fixed part (13) comprising a frame (14) extending along a longitudinal axis;
- a movable part (18) comprising a platform (20), a driving console (22) fixed to the platform (20) and a seat (24) for a driver (26) fixed to the platform (20); and
- a pivoting connection (28) of the movable part (18) on the frame (14), configured so that the movable part (18) is rotatable relative to the frame (14) about an axis of revolution (A ) substantially perpendicular to the longitudinal axis of the frame at least between first and second positions;
characterized in that in the first and second positions a driver (26) seated on the seat (24) has a field of vision (30) facing longitudinally forward and longitudinally rearward respectively, the vehicle (10) comprising a lock (32) configured to lock the movable part (18) in rotation with respect to the frame (14) at least in the first and second positions. Railway vehicle according to Claim 1, characterized in that the lock (32) comprises an indexing pin (48) mounted on one of the movable part (18) and of the fixed part (13), and two notches ( 50,52) arranged on the other of the movable part (18) and of the fixed part (13), each capable of receiving the indexing finger (48) to lock the movable part (18) in rotation relative to the frame (14). Railway vehicle according to Claim 2, characterized in that the indexing finger (48) is movable between a position of engagement in the notches (50,52) and a retracted position in which the movable part (18) is capable of move in rotation relative to the frame (14). Rail vehicle according to any one of the preceding claims, characterized in that the fixed part (13) comprises two superstructures (68, 70) mounted longitudinally on either side of the movable part (18), each superstructure (68, 70) having a prismatic shape and extending in the longitudinal direction between the movable part (18) and an edge (36, 38) of the frame (14), each superstructure (68,70) having a height close to the part mobile (18) greater than that near the edge (36,38) of the frame (14). Rail vehicle according to any one of the preceding claims, characterized in that the first and second positions are angularly offset relative to each other by 180° around the axis of revolution (A). Rail vehicle according to any one of the preceding claims, characterized in that the pivoting connection (28) comprises a driving wheel (40) driving by adhesion or by obstacle the rotation of the plate (20). Rail vehicle according to any one of Claims 1 to 5, characterized in that the pivoting connection (28) comprises a connecting rod (42) mounted on the one hand movable in translation on the fixed part (13) and on the other hand fixed to the plate (20), and causing the rotation of the plate (20) by translation. Rail vehicle according to any one of the preceding claims, characterized in that the movable part (18) comprises walls (60) fixed to the platform (20) defining a closed driver's cab. Rail vehicle according to Claim 8, characterized in that the driver's cab (58) comprises two escape doors (64). Train comprising a railway vehicle according to one of the preceding claims.