ES2718814T3 - Railway vehicle for passengers - Google Patents

Description

DESCRIPTION

Railway vehicle for passengers

Technical field

The invention relates to a railway vehicle for passengers.

State of the art

To save the space between a platform and the floor of the passenger compartment of a railway vehicle, so-called sliding steps, transition bridges or ramps are often used. These generally comprise a passage surface, which is movably mounted and moves between a retracted and an unfolded position. This movement is carried out in the simplest case as a sliding movement or as a folding or tilting movement. The height of the platform above the level of the upper face of the lane is determined by specific standards (UIC, TSI, GOST). In this regard, in particular the GOST standard, which is essentially valid for Russia, sets very different level differences between the level of the upper face of the lane and the level of the platform. According to the GOST standard, this difference can be 1100 mm (common in urban stations) or 200 mm (common in rural areas). The valid norms for Europe foresee a difference in level between these values. Therefore, in international traffic, a rail vehicle cannot offer the same convenience of access at all stops, because in each case passengers must save different access heights. The mentioned access aids (sliding steps, transition bridges and ramps), depending on the specific implementation, are exposed to environmental factors. In particular, the accumulation of ice and snow can affect the desired function. To remedy this situation, as far as possible all the components are arranged inside the car, something that, however, is only possible in a limited way in particular in the case of folding steps because the step platform of a Folding step must be in any case outside the car. Often, a foldable step of limited mobility (ice cream) can no longer be made accessible with the drive means (electric or pneumatic drives) and the ice must be removed manually. In addition, the use of a folding step is particularly advantageous and common because, by means of a folding step, the construction space between the folding steps of the right and left side of the car can be kept free for other installations. A sliding step, which meets the same objectives as a folding step, needs a space that extends in the direction of the wagon axis and would limit the installation of devices below the chassis. In addition, a sliding step, taking into account the given construction line, which in this position narrows inwards, would occupy the construction space in the carriage box and would substantially hinder additional installations. Vehicles with variable accesses are known from the state of the art; for example, in the publication for patent application information DE 43 29 614 A1 a vehicle is disclosed comprising a stairway access with extendable step platforms for different platform heights. In patent CH 421 723 a railway passenger vehicle is disclosed which has a vertical sliding access step which, depending on the height of the platform at that time, slides to a suitable position.

Exhibition of the invention

Therefore, the invention is based on the objective of providing a rail vehicle for passengers with different levels of the platform offering substantially constant access comfort, remaining invariably also with aggravating environmental factors, in particular in the case of frost and snowfall.

The objective is achieved by a passenger rail vehicle with the features of claim 1. Advantageous configurations are the subject of the dependent claims.

According to the basic idea of the invention, a passenger rail vehicle is constructed with four different access levels, a folding step for a first access level being provided in an access of this passenger rail vehicle, a sliding step being provided for a second access level, a ladder being provided for a third access level and a folding ramp being provided for a fourth access level. In this regard, the first level of access is lower than the second level of access and this second level of access is lower than the third level of access, and the third level of access is lower than the fourth level of access measured in each case from the top face of the lane.

In this way the advantage of being able to build a railway vehicle for passengers can be achieved, which with four different access levels offers substantially constant access comfort.

The folding step provided according to the invention is used at the (first) lowest access level. A folding step of this type is exposed to environmental factors and ice and snow can accumulate in such a way that the necessary mobility is limited. Therefore, an embodiment of the invention provides for the use of a hydraulic drive for the folding step, because it can apply the high forces required by means of which mobility can also be restored, in particular, in case of frost. You are high forces can also be achieved with electric and pneumatic drives, however more complex and expensive mechanisms are needed, which can be dispensed with with a hydraulic drive. A hydraulic drive also offers the advantage of being able to drive the hydraulic conduits between the pump and the work cylinder largely arbitrarily, which is particularly advantageous in confined spaces. For the generation of hydraulic pressure, vane pumps or electrically driven gear pumps can be used. An embodiment of the invention provides for the use of a manually operated pump. In this way, a folding step drive is also possible in case of failure of the electric pump drive. Similarly, a hand-operated pump can be provided exclusively, which is particularly advantageous for railway vehicles that only pass through stations that require this first lower level of access in a limited way.

To further increase safety in case of snow and frost, the folding step can be made such that a step platform is arranged on a drive rod arranged substantially vertically and that on this drive rod, by means of a drive arranged in the inside the car, a torque is applied. In this way the step platform is pivoted from a rest position to a use position and vice versa. Thus, the possibilities of snow and ice accumulation are substantially limited, because only the accumulation of snow and ice in the area of the passage of the connecting rod through the carriage box can limit mobility. However, at this point the braking torque produced by this accumulation of snow and ice can be overcome more easily than with conventional folding steps.

The sliding step for use with the second access level is exposed to environmental factors to a substantially lesser extent than the folding step. Due to the protected position of the mechanical components, no significant influence of time on their function can be expected. The sliding step is driven by common electric or pneumatic drives. In particular, when a hydraulic drive is provided for the folding step, it is advantageous to also use a hydraulic drive for the sliding step, because in this way the effort for driving different fluid media can be reduced.

The third level of access is formed by the common staircase in the access area of the passenger rail vehicle.

The folding ramp provided according to the invention for the fourth highest access level comprises in a first embodiment a first and a second step platform, which are pivotally connected to each other by means of a joint and this folding ramp being stored in the resting position (when not used) in the access area of the passenger rail vehicle. In this resting position the folding ramp is in an upright position, the two step platforms being folded. In this regard, the folding ramp can be arranged in such a way that, when not in use, it does not narrow the access area, so that when the folding or sliding step is used, the passenger does not notice any difference with respect to a vehicle without folding ramp For this, the folding ramp is arranged in a recess in the inner lining. The transition from the resting position to the use position occurs manually by means of the following operational steps

- unlock the folding ramp in the rest position. In this regard, it is advantageous to provide for unlocking by means of a tool, for example a square key, to avoid manipulation by unauthorized personnel as much as possible.

- Extend the folding ramp to the entrance area of the rail vehicle. In this regard, according to the invention, a linear sliding device is provided that allows a horizontal sliding of the two step platforms (still folded) in the longitudinal direction of the car. In this regard, the folding ramp slides substantially in the center of the access area, or of the access ladder.

- Fold the two step platforms. In this operative step the two step platforms (still folded) are placed in a horizontal position, for this, the first step platform comprises an articulation at the point of union with the linear sliding device, which allows this pivoting movement. This articulation at the junction point with the linear sliding device is preferably provided with a spring device (for example a torsion spring device), so that when folding the two step platforms, for this the operator only has to Apply a reduced effort. This spring device releases the operator much of the weight of the two step platforms.

- Open the second step platform. In this regard, the second step platform is opened, which is connected to the first by means of a pivotal joint, and the space between the platform and the rail vehicle is saved. In this way the folding ramp is in the use position.

In a further refinement of the invention a handrail is provided in the entrance area. This railing, when the folding ramp is not used, that is, in the rest position, is arranged in front of the inner lining. In this way it is necessary to provide the handrail with a pivoting device that makes the handrail, during the operation of the folding ramp, can pivot out of the movement area of the folding ramp. The handrail, in the use position of the folding ramp, can be fixed back to its original position, so that it can be used. In this regard, before and after the drive steps described above, corresponding operational steps for the handrail will still be performed.

The folding ramp is preferably driven manually. However, a motor-assisted folding and unfolding movement using corresponding actuators and control devices is possible.

A further embodiment of the folding ramp provides for the two step platforms so that they can slide into each other. In this regard, the connection between the first and the second step platform is carried out instead of by means of a pivoting joint, with a sliding device. In this way, the advantage of freeing the operator from effort by folding the second step platform can be achieved. The drive of this sliding device is preferably produced manually, for example by means of a manual rack drive.

Brief description of the drawings

They show by way of example:

Figure 1, passenger rail vehicle.

Figure 2, passenger rail vehicle, seen from below.

Figure 3, folding ramp - position 1.

Figure 4, folding ramp - position 2.

Figure 5, folding ramp - position 3.

Figure 6, folding ramp - position 3 - side view.

Figure 7, folding ramp - position 4.

Figure 8, folding ramp - position 4 - sliding step platforms.

Figure 9, folding ramp - resting position.

Figure 10, folding ramp - deployed.

Figure 11, folding ramp - horizontal.

Figure 12, folding ramp - position of use.

Embodiment of the invention

Figure 1 shows by way of example and schematically a railway vehicle for passengers. The access area of a passenger rail vehicle 1 is shown in an oblique view from outside with the door open. The passenger rail vehicle 1 comprises a sliding step 3 which is arranged below the lowest step of the access ladder 13, which in figure 1 is shown in an unfolded position. Below this sliding step 3 a foldable step 4 is arranged, which in figure 1 is presented in the folded position. Inside the vehicle, a folding ramp 2 is arranged in the access area, which is represented in the rest position. This folding ramp in the rest position is arranged in a recess of the inner lining so that the access area is not affected by it. In addition, a handrail 11 is provided which is arranged in front of the folding ramp.

Figure 2 shows by way of example and schematically a railway vehicle for passengers in a view from below. The access area of the passenger rail vehicle 1 of Figure 1 is shown in an oblique view from below, the sliding step 3 being in the deployed position and the folding step 3 in the securely folded position. The operation of the folding step 4 is produced by means of a hydraulic actuator 5, another actuator of this type can be provided on the opposite side of the folding step.

Figure 3 shows by way of example and schematically a folding ramp - position 1. Figures 3 to 7 show in a very abstract way the operation of the folding ramp 2 and the operative steps for a deployment of this ramp. Figure 3 represents the folding ramp 2 in a first position, the rest position. The view has been selected from inside the vehicle in the direction of a passenger who is getting off, who sees the folding ramp 2 on his left. The folding ramp 2 comprises a first step platform 6 and a second step platform 7, which are pivotally connected to each other by means of a second joint 9. The first step platform 6 is pivotally connected by means of a first joint 8 with a linear sliding device 10. The linear sliding device 10 is arranged in the ground area of the access area of the rail vehicle 1 and extends in the direction of the vehicle. The linear sliding device 10 comprises a straight guide and a slide slidingly connected with this straight guide, to which the first joint 8 is connected. In the first position shown in Figure 3 the folding ramp 2 is in the retracted position .

Figure 4 shows by way of example and schematically a folding ramp - position 2. The folding ramp 2 is shown in the unfolded position, the unit composed of the step platforms 6, 7 and the corresponding joints 8, 9 is located in the final position of the deployment path determined by the linear guide 10.

Figure 5 shows, by way of example and schematically, a folding ramp - position 3. In this third position the unit composed of the step platforms 6, 7 and the corresponding joints 8, 9 is in a horizontal position.

Figure 6 shows by way of example and schematically a folding ramp - position 3 - side view. Figure 6 represents the folding ramp 2 in the same position as in Figure 5, although in a side view in the longitudinal direction of the vehicle. In this way the access area is visible, which comprises several steps. Similarly, a platform 12 is represented. The unit composed of the step platforms 6, 7 is still folded. The second joint 9 is shown which pivotally joins the first step platform 6 with the second step platform 7. The linear sliding device 10 is represented by way of example as a straight guide with two guide rails.

Figure 7 shows by way of example and schematically a folding ramp - position 4. In this fourth position (use position) of the folding ramp 2 the second step platform 7 is open and together with the first step platform 6 it forms a flat, which saves the space between the passenger rail vehicle 1 and platform 12.

Figure 8 shows, by way of example and schematically, an additional embodiment of a folding ramp in position 4. An embodiment with sliding platforms is shown. The first step platform 6 comprises a sliding device (a straight guide) in which the second step platform 7 is slidably mounted. The unit composed of the first step platform 6 and the second step platform 7 is pivotally fixed by means of a first joint 8 to the linear sliding device 10. To place the folding ramp in the position of use, proceed as described in Figures 3 to 6. Next, the second step platform 7 is deployed from the recess in the first step platform 6. The necessary drive for this is not shown in Figure 8. For this, a common rack drive with manual activation can be used.

Figure 9 shows by way of example and schematically a folding ramp in the rest position. A section is shown through a passenger rail vehicle 1 comprising a folding ramp 2. The folding ramp 2 is in the rest position in a recess of the inner lining, a handrail 11 is arranged in the access area of the passenger rail vehicle 1 in front of the folding ramp 2. This position corresponds to the position represented schematically in Figure 3.

Figure 10 shows by way of example and schematically a folding ramp in the deployed position. In this position the unit composed of the step platforms 6, 7 and the corresponding joints 8, 9 has slipped from the rest position to the access area. For this it is necessary to swing the handrail 11 outwards. The handrail 11 is shown in the position in which it has been swung back inwards (use position of the handrail 11). This position corresponds to the position represented schematically in Figure 4.

Figure 11 shows by way of example and schematically a folding ramp in a horizontal position. In this position the unit composed of the step platforms 6, 7 and the corresponding joints 8, 9 has been pivoted to a horizontal position (on the first joint 8). This position corresponds to the position represented schematically in Figures 5 and 6.

Figure 12 shows by way of example and schematically a folding ramp in use position. In this position (use position) of the folding ramp 2 the second step platform 7 is open and together with the first step platform 6 it forms a plane.

List of reference numbers

1 passenger rail vehicle

2 folding ramp

3 sliding step

4 folding step

5 hydraulic actuator

6 first step platform

7 second step platform

8 first joint

9 second joint

10 linear sliding device 11 railing

12 platform

13 ladder

Claims (7)

1. Rail vehicle (1) for passengers with four different access levels, a folding step (4) being provided for a first access level, a sliding step (3) being provided for a second access level, a ladder being provided (13) for a third level of access characterized because a folding ramp (2) is provided for a fourth level of access, comprising two step platforms (6, 7), which - in the rest position they are arranged vertically in the access area of the passenger rail vehicle (1), and - in the use position, save the space between the passenger compartment and the platform (12). 2. Rail passenger vehicle (1) according to claim 1, characterized in that the first level of access is lower than the second level of access and the second level of access is lower than the third level of access and the third level of access is lower than the fourth level of access. 3. Passenger rail vehicle (1) according to claim 1 or 2, characterized in that the folding step (4) has a hydraulic drive (5). 4. Railway vehicle (1) for passengers according to claim 3, characterized in that the hydraulic drive (5) is carried out by means of a hand-operated pump. 5. Passenger rail vehicle (1) according to one of claims 1 to 4, characterized in that the passage platforms (6, 7) are pivotally connected to each other by means of a second joint (9) and the first platform ( 6) of passage is fixed to a linear sliding device (10) oriented in the longitudinal direction of the car, by means of a first articulation (8) such that the folding ramp (2) can slide to the access area of the railway vehicle (1) for passengers. 6. Passenger rail vehicle (1) according to claim 5, characterized in that the first step platform (6) comprises a sliding device and the second step platform (7) can slide through this sliding device over the space between the floor of the passenger compartment and the platform (12). 7. Railway vehicle (1) for passengers according to one of claims 1 to 6, characterized in that a handrail (11) is provided, which in the rest position of the folding ramp (2) is arranged in the passenger compartment in front of the folding ramp (2) and which can be swung out from this position when using the folding ramp (2).