RAIL VEHICLE, METHOD FOR PRODUCING A RAIL VEHICLE, AND USE OF A SCISSOR MECHANISM IN A BOARDING ARRANGEMENT

Abstract

The invention relates to a rail vehicle. The rail vehicle comprises at least one rail vehicle outer wall. The rail vehicle further comprises a boarding arrangement having at least one first sliding step and one second sliding step. The first sliding step and the second sliding step are mounted so as to be laterally sliding. The first sliding step and the second sliding step can slide from a travel position to an end position by a lateral retraction movement in the direction of the outer wall of the rail vehicle. In the end position, the second sliding step protrudes beyond the first sliding step.

Claims

1-16. (canceled)

17. A rail vehicle for passenger transport comprising at least one rail vehicle outer wall and a boarding arrangement having at least a first sliding footboard, a second sliding footboard and a drive unit for the first sliding footboard, wherein the first sliding footboard and the second sliding footboard are supported so as to be able to slide laterally and the first sliding footboard and the second sliding footboard can each be pushed from a travel position by means of a lateral deployment movement in the direction of the rail vehicle outer wall into an end position, wherein the second sliding footboard in the end position thereof protrudes beyond the first sliding footboard in the end position thereof, wherein the boarding arrangement contains a coupling mechanism for coupling the first sliding footboard and the second sliding footboard, wherein the deployment movement of the first sliding footboard brings about via the coupling mechanism the deployment movement of the second sliding footboard.

18. The rail vehicle according to claim 17, wherein the coupling mechanism couples the deployment movement of the first sliding footboard and the second sliding footboard in such a manner that the first sliding footboard and the second sliding footboard reach their end position simultaneously.

19. The rail vehicle according to claim 11, wherein the coupling mechanism couples the deployment movement of the first sliding footboard and the second sliding footboard in such a manner that the first sliding footboard and the second sliding footboard leave their travel position simultaneously.

20. The rail vehicle according to claim 17, wherein the lateral deployment movement of the first sliding footboard is subdivided into a first portion and a second portion, wherein the coupling mechanism couples the first sliding footboard and the second sliding foot-board in such a manner that, during the deployment move-meet of the first sliding footboard, in the first portion no relative movement is produceable with respect to the second sliding footboard.

21. The rail vehicle according to claim 20, wherein the coupling mechanism couples the first sliding footboard and the second sliding footboard in such a manner that, during the deployment movement of the first sliding footboard, in the second portion a relative movement is produceable with respect to the second sliding footboard.

22. The rail vehicle according to claim 17, wherein the first sliding footboard after passing through the first portion of the lateral deployment movement covers the at least first step when viewed from above.

23. The rail vehicle according to claim 17, wherein the coupling mechanism comprises at least a first arm, wherein the first arm is connected at a first end to the first sliding footboard and at a second end to the second sliding footboard.

24. The rail vehicle according to claim 23, wherein the coupling mechanism comprises a second arm, wherein the first arm and the second arm are rotatably supported in an axle in such a crosswise manner that the first arm and the second arm form a respective scissor lever of a scissor mechanism.

25. The rail vehicle according to claim 24, wherein, in the second portion of the lateral deployment movement of the first sliding footboard, the coupling mechanism guides the first end of the first arm and the first end of the second arm together.

26. The rail vehicle according to claim 22, wherein the first sliding footboard is supported so as to be able to slide laterally in a sliding footboard guide, wherein the coupling mechanism comprises a guide rail, wherein the first end of the first arm is guided in the guide rail, wherein the guide rail extends in a first region parallel with the sliding footboard guide of the first sliding footboard, wherein the guide rail extends in a second region at an angle with respect to the sliding footboard guide of the first sliding footboard.

27. The rail vehicle according to claim 17, wherein the boarding arrangement further comprises a first folding step and a second folding step, wherein the first folding step and the second folding step can be moved from a travel position into a position for use, wherein the first folding step and the second folding step form in the position for use thereof another step.

28. A method for producing a rail vehicle, comprising the following steps: providing at least a first rail vehicle outer wall; providing at least a first sliding footboard, a second sliding footboard; displacing the first sliding footboard and the second sliding footboard from travel positions into end posi-tions by means of a lateral deployment movement in the direction of a rail vehicle outer wall, wherein the second sliding footboard protrudes in the end position thereof beyond the first sliding footboard in the end position thereof, wherein a drive unit drives the first sliding footboard, wherein the deployment movement of the first sliding footboard brings about the deployment movement of the second sliding footboard by means of a coupling mechanism.

29. The method according to claim 28, wherein the first sliding footboard and the second sliding footboard reach the end position thereof simultane-ously when deployed.

30. The method according to claim 28, wherein the first sliding footboard and the second sliding footboard leave the travel position thereof simultaneously.

31. The method according to claim 28, wherein, when the first sliding footboard and the second sliding footboard are deployed; in a first portion no relative movement is produced between the first sliding footboard and the second sliding footboard.

32. The method according to claim 28, wherein, when the first sliding footboard and the second sliding footboard are deployed, in the second portion a relative movement is produced between the first sliding footboard and the second sliding footboard.

33. The rail vehicle according to claim 24, wherein the second arm is connected with a first end to the first sliding footboard and with a second end to the second sliding footboard.

Description

[0060] The invention is explained in greater detail below with reference to Figures which illustrate only exemplary embodiments. In the schematic drawings:

[0061] FIG. 1: is a schematic illustration of a rail vehicle with a sliding footboard arrangement in the boarding region,

[0062] FIG. 2: is a schematic illustration of a sliding footboard arrangement,

[0063] FIG. 3: is a schematic illustration of a sliding footboard arrangement without a covering sheet,

[0064] FIG. 4: is a schematic illustration of a sliding footboard arrangement in a travel position,

[0065] FIG. 5: is a schematic illustration of a sliding footboard arrangement at the end of a first step,

[0066] FIG. 6: is a schematic illustration of a sliding footboard arrangement at the end of a second step.

[0067] FIG. 1 shows a boarding region 25 of a rail vehicle 1. The boarding region 25 is provided in an outer wall 2 of the rail vehicle 1. In the boarding region 25, passengers climb from a platform (not shown) into the rail vehicle 1. The passengers reach the rail vehicle floor 5 from the platform. Depending on the height of the platform, the passengers use a telescope-like sliding footboard arrangement 28 or a first step 3 and optionally a folding step 27. In this instance, the first step 3 is located in a step recess 24 of the telescope-like sliding footboard arrangement 28. The telescope-like sliding footboard arrangement 28 contains two telescope-like sliding footboards 26 (see also FIG. 2).

[0068] These devices enable the passenger to overcome a height difference between the platform and the rail vehicle floor. Together the folding step 27, one of the telescope-like sliding footboards 26 and the first step 3 form a boarding arrangement 7 for the rail vehicle 1.

[0069] The different boarding heights are achieved by the use of different steps. Low platforms can be achieved by the folding step 27 in combination with the first step 3. In a variation for the next-highest platforms, the folding step 27 is not folded out and the passengers step directly over the first step 3 into the rail vehicle 1. If the platform is at the same height or a slightly lower or higher height than the rail vehicle floor 5, the boarding can be facilitated by the telescope-like sliding footboard 26.

[0070] The folding step 27 is provided in order to reach heights which are below the rail vehicle floor 5. The folding step 27 contains 2 folding steps 20, 21. In contrast to the telescope-like sliding footboard 26, the folding steps 20, 21 are arranged outside a rail vehicle inner space. In the travel position, the folding steps 20, 21 are folded onto the rail vehicle outer wall 2 or folded away underneath the rail vehicle 1. Upon arrival at a platform, the folding steps 20, 21 are folded out in a rotational movement from the travel position. The rotation is in this instance about an axle which faces in the travel direction of the rail vehicle 1.

[0071] FIG. 2 shows the telescope-like sliding footboard arrangement 28. The telescope-like sliding footboard arrangement 28 comprises two telescope-like sliding footboards 26. The rail vehicle has at each of the two outer sides a boarding region 25. Each of the boarding regions 25 has a telescope-like sliding footboard 26. The rail vehicle floor 5 is arranged at the upper side of the telescope-like sliding footboard 26. Both telescope-like sliding footboards 26 contain a step recess 24. In the step recesses 24 there is a first step 3 (broken lines). As a result of the step recess 24, the first step 3 can be reached. The rail vehicle floor 5 is formed by a covering sheet 35. Each of the telescope-like footboards 26 has a drive unit 11. The drive unit 11 is an electric motor

[0072] FIG. 3 shows the telescope-like sliding footboard arrangement 28 from FIG. 2. One of the telescope-like sliding footboards 26 is shown without the covering sheet 35. A first sliding footboard 8 thereby becomes visible. The first sliding footboard 8 is guided by a first set of sliding rails 19. The drive 11 drives the first sliding footboard 8. The first sliding rails 19 for the first sliding footboard 8 reach from a center of a rail vehicle as far as the rail vehicle outer wall 2 (see FIG. 1). The drive 11 is electric and drives the first sliding footboard 8 via a toothed wheel. As a result of the drive, the first sliding footboard 8 is driven laterally, that is to say, to the side with respect to the travel direction of the rail vehicle 1. In FIG. 3, the first sliding footboard 8 is completely below the covering sheet (not shown) of the rail vehicle floor 5. This position is the travel position.

[0073] FIGS. 4, 5 and 6 show one of the telescope-like sliding footboards 26 of the telescope-like sliding footboard arrangement 28 from FIGS. 2 and 3 as a plan view in different stages when the telescope-like sliding footboard is deployed. In the plan view, the rail vehicle floor 5 is illustrated so as to be transparent so that, as in FIG. 3, the first sliding footboard 8 can be seen and is illustrated with broken lines. The first sliding footboard 8 is also illustrated in a transparent manner. In FIG. 4, therefore, a second sliding footboard 9 can be seen. In the view shown in FIG. 4, the first and the second sliding footboards 8, 9 are in the travel position. The second sliding footboard 9 is guided by a second set of sliding rails 18. The second sliding rails 18 are located at the lower side of the first sliding footboard 8 and are securely connected thereto. Consequently, the first sliding footboard 8 and the second sliding footboard 9 are provided as one unit. In this instance, however, the second sliding footboard 9 can be moved relative to the first sliding footboard 8.

[0074] The two sliding footboards 8, 9 are connected by means of a coupling mechanism 10. The coupling mechanism 10 contains a first arm 12 and a second arm 15. The first arm 12 is connected at a first end 13 to the first sliding footboard 8.

[0075] The connection of the first end 13 of the first arm 12 to the first sliding footboard 8 is carried out by means of a cylindrical head which is guided through an elongate hole 29 of the first sliding footboard 8 (see also FIG. 3). The elongate hole 29 extends in the travel direction of the rail vehicle 1. A diameter of the cylindrical head substantially corresponds to the width of the elongate hole 29. During a movement through the elongate hole 29, the cylindrical head rolls along the elongate hole 29. Consequently, the first end 13 of the first arm 12 is movable in the travel direction whilst in a lateral direction relative thereto forces are transmitted via the edge of the elongate hole 29 from the first sliding footboard 8 to the first arm 12.

[0076] At a second end 14 of the first arm 12, the first arm 12 is connected to the second sliding footboard 9. The connection to the second sliding footboard 9 is rotatable, but does not enable any movement in the travel direction or laterally relative thereto.

[0077] The second arm 15 is at the center thereof rotatably connected via an articulation to the center of the first arm 12. The first arm and the second arm 15 can thereby rotate relative to each other about an axle perpendicular to the rail vehicle floor. This movement corresponds to a scissor movement, wherein the arms 12, 15 rotate about the articulation 6 and represent the scissor arms.

[0078] Furthermore, the second arm 15 is connected at a second end 17 to the second sliding footboard 9. The second end 17 of the second arm 15 engages with another cylindrical head in an elongate hole 30 of the second sliding footboard 9. Forces are thereby transmitted in a lateral direction from the second arm 15 to the second sliding footboard 9, whilst the elongate hole 30 permits a movement of the second end 17 of the second arm 15 in the travel direction. A first end 16 of the second arm 15 is connected to the first sliding footboard 8. The connection is articulated so that a rotation movement of the second arm 15 relative to the first sliding footboard 8 is enabled but no translation movement.

[0079] The elongate holes 29, 30 enable the arms 12, 15 to move relative to the respective sliding footboards 8, 9 in the travel direction of the rail vehicle 1. In contrast, forces are transmitted in a lateral direction and no movement is permitted.

[0080] The first arm 12 of the coupling mechanism 10 is connected at the first end 13 to the first sliding footboard 8. In addition, the first arm 12 is guided at the first end 13 thereof by a guide rail which is produced as a control cam 31. The control cam 31 is a rail which has at the center thereof a longitudinal groove 34. The first arm 12 has at the opposing side of the first sliding footboard 8 a cylindrical continuation. The continuation engages in the longitudinal groove 34 and is thereby redirected by the control cam 31.

[0081] When the telescope-like sliding footboard 26 is deployed, there are two stages. In both stages, only the first sliding footboard 8 is directly driven by the drive 11 and consequently moves in the direction of the vehicle outer wall 2 (see FIG. 1).

[0082] The second sliding footboard 9 is driven by the coupling mechanism 10. In the first portion, the control cam 31 is linear and parallel with the sliding rails 18, 19. Consequently, a scissor angle 33 between the two arms 12, 15 remains constant. The second end 17 of the second arm 15 is located in an end position of the elongate hole 30. The first end 13 of the first arm 12 is also located in an end position of the elongate hole 29. The cylindrical heads in the elongate holes 29, 30 are thus in their outermost position and transmit forces in a lateral direction.

[0083] The forces in the travel direction of the second ends 14, 17 are mutually cancelled out or are absorbed by the second sliding rails 18. Therefore, the second sliding footboard 9 follows the movement of the first sliding footboard 8.

[0084] Consequently, in the first stage both sliding footboards move at the same speed. There is therefore no relative movement between the two sliding footboards 8, 9. A position after the end of the first stage is shown in FIG. 5.

[0085] After the end of the first stage, the control cam changes its direction. The direction of the control cam 31 now contains a component in the travel direction 36 of the rail vehicle 1. The movement in the travel direction of the first end 13 of the first arm 12 is enabled by the elongate hole 29. This means that the cylindrical end of the first arm 12 in the elongate hole 29 also moves in the travel direction. The secure fixing of the second end 14 of the first arm 12 to the sliding footboard 9 prevents a movement in this direction at the second end of the arm 12. Consequently, the first arm 12 rotates in addition to the translational movement about the second end 14. This rotation pushes the second sliding footboard 9 forward relative to the first sliding footboard 8.

[0086] As a result of the movable connection of the first arm 12 to the second arm 15, a scissor angle is decreased as soon as the first end 13 moves in the travel direction 31 of the rail vehicle. The reduction of the scissor angle means that the second sliding footboard 9 moves forward in a lateral direction relative to the first sliding footboard. The second sliding footboard 9 therefore moves in the second stage more rapidly than the first sliding footboard 8. The second sliding footboard 9 moves in a telescope-like manner below the first sliding footboard 8. An end position in which the second sliding footboard is completely deployed is shown in FIG. 6. This is the end of the second stage.

[0087] In the first stage, only the step recess 24 is covered. The first stage can consequently be passed through with closed doors. After a rail vehicle door has been opened, the second stage begins to be deployed in a telescope-like manner in the sliding footboard 8 and sliding footboard 9. With the same mechanism, wherein the drive operates in the opposite direction to the deployment, the telescope-like sliding footboard 26 can also be retracted again.