EP3577001A1

EP3577001A1 - Gap bridging device for a rail vehicle

Info

Publication number: EP3577001A1
Application number: EP18723723.5A
Authority: EP
Inventors: Andreas Zeiner
Original assignee: Siemens Mobility GmbH
Current assignee: Siemens Mobility Austria GmbH
Priority date: 2017-04-24
Filing date: 2018-04-23
Publication date: 2019-12-11
Anticipated expiration: 2038-04-23
Also published as: WO2018197393A1; AT519949B1; AT519949A1; ES2950454T3; EP3577001B1

Abstract

Disclosed is a gap bridging device (1) for a rail vehicle, for bridging the gap (4) between a passenger compartment floor and a platform (3), comprising a step plate (6) which is mounted so as to be horizontally slidable, by means of a power drive (21), between a retracted position and a deployed position and any number of intermediate positions, and comprising a swivel arm (5) which is hingedly connected to the step plate (6) by means of a joint (10) and is equipped with a vertically movable swivel joint (7) at the end facing away from the joint (10), the movement of the vertically movable swivel joint (7) being effected by the power drive (21).

Description

description

Gap bridging for a rail vehicle

Technical area

The invention relates to a gap bridging for a

Rail vehicle for bridging the gap between

Passenger compartment floor and a platform.

State of the Art Gap bridging is used in modern rail vehicles to allow passengers a comfortable entry and exit and in particular the danger through the gap between the passenger compartment floor and the platform to

minimize. This gap has a width of about 100 mm in typical subway lines, but can also be up to 300 mm, for example, in the case of platforms climbing on a curved track. This variance of the gap dimensions represents a special one

A source of danger, since the passengers would have to be aware of each entry and exit of the current platform gap, which is often not possible in high passenger numbers. To bridge this platform gap can

Gap bridging be used, which usually include a sliding plate mounted, which is powered by the vehicle pushed out. For larger gap widths, this plate and its storage are very massive, so that the space requirement increases and thus such

Gap bridging only more complicated and under

Impairment of the car body can be provided in the door area. With so-called folding / sliding steps can This problem can be partially solved because in such a pivotally mounted lever, the plate supports from below and thus significantly reduces the forces on the storage of the plate. Such folding / sliding steps therefore require less space and can in the entry area of a

Passenger rail vehicle without changes to the

Car body structure can be used, with at the

Installation position of this gap bridging simply the

conventional floor construction removed and through the

Gap bridging is replaced. The kinematics of this

Gap bridging in the form of a folding / sliding step, however, requires that, when the plate is extended far, it lowers at its edge on the platform side, thus creating a step to the platform. In addition, a widely extended plate on a steep slope in the direction of the car interior. These properties make gap bridging in the form of a folding / sliding step unsuitable for larger platform gaps.

Presentation of the invention

The invention is therefore based on the object, a

Gap bridging in the form of a folding / sliding step

indicate which is suitable for larger platform gaps and in which in particular the height difference between a platform and the platform edge of the platform

Tread plate is minimized at large extension distances.

The task is accomplished by a gap bridging with the

Characteristics of claim 1 solved. advantageous

Embodiments are the subject of subordinate claims. The basic idea of the invention according to a

Gap bridging for a rail vehicle for bridging the gap between a passenger compartment floor and a

Platform described which one by means of a

Power drive between a retracted position and an extended position and any number

Intermediate positions mounted horizontally sliding

Tread plate and a pivotally connected to the tread plate by means of a hinge pivot arm comprises, wherein the pivot arm is provided at its end remote from the joint with a vertically displaceable pivot joint, and wherein the displacement of the vertically displaceable

Swivel joint is effected by the action of the power drive.

As a result, the advantage can be achieved to build a gap bridging in the form of a folding / sliding step, which is suitable for large extension distances, since the drop in the

platform edge, as in conventional

Gap bridging is avoided. In particular, it is advantageous that a gap bridging depending on the

given conditions of use and existing platform heights is easily adaptable. According to the invention, a gap bridging is established, which is opposite to gap bridging in the manner of

Folding / Schiebetritts have the property that the pivot joint on which the pivot lever is rotatably mounted on the car body, depending on the

Extension of the footboard is moved upwards.

As a result, the fall of the platform side edge of the tread plate is prevented at large extension distances. It is essential that the vertical shifting of the

Swivel joint through the provided for the extension of the tread force drive is done, so no further

Drive is required.

According to one embodiment of the invention, the

Power drive via a traction means (for example, a rope or a chain) on the vertically displaceable pivot joint. In this case, for example, a gear with a cable drum can be provided on the drive. A mechanically less complicated embodiment uses the deflected by a lever extension movement of the tread plate as a drive for a traction means. Such a kind can be an elaborate and

error-prone rope winder can be avoided.

According to a further preferred embodiment of the

Invention is a conventional folding / Schiebetritt to another kinematic element, a rotary lever extended. The rotary lever is at one of its ends to a

horizontal axis swiveling with the carbody of the

Rail vehicle connected and pivotable at its other end with a point on the pivot arm of the

Gap bridging connected. The swivel joint, which in conventional folding / sliding steps, the rotation of the

Swivel arm allows about a horizontal axis is extended at a gap bridging according to the invention by a vertical displacement. In this way, the kinematic movement is changed so that the point on the

Swivel arm, which attaches to the rotary lever, a

performs circular movement, at the same time the vertically displaceable pivot joint is moved upward (in the direction of the tread plate). Through this vertical

Displacement of the pivot joint will be a change of Height of the platform-side edge of the footboard

achieved, whereby a sinking of this edge can be prevented even with large extension distances.

The determination of the required dimensions of the assemblies of the gap bridging and the required sliding path of the pivot joint are dependent on the

Infrastructure conditions according to the methods common to planar gearboxes. It is a particular advantage of an inventive

Gap bridging that the entire sequence of movements in an extension and retraction of a tread plate and the

associated pivoting movement of the pivot arm is effected only by means of a power drive, wherein the pivot arm, or the

Vertically displaceable swivel joint itself requires no drive, as it by the extension and retraction of the

Stepping plate is in each case brought into the required position. However, it is the vertical displacement of the

Swinging joint to block in the extended position tread plate, i. in its vertical

Restrict freedom of movement, otherwise at one

vertical loading of the treadle this would decrease. It is advantageous to a positive locking

to be provided.

According to the invention are for blocking alternatively two

preferred embodiments provided. According to a first embodiment, a blocking by means of a

provided by means of force-actuated bolt whose

Movement is controlled by a control device in coordination with the sequence of movements of all components of a vehicle access (door drive, door leaf and gap bridging). In this case, an electromagnetic actuation of the bolt is advantageous because it has such advantages in terms of easy controllability and small footprint. However, in certain types of vehicles, pneumatic actuation of the bolt may also be advantageous, particularly in applications where a pneumatic door and gap bridging operation is provided.

A second embodiment of the blocking provides, this with the force applied by the power drive

perform. For this purpose, a further movement of the drive is required over which after complete extension of the footboard a blockage vertically displaceable

Swivel joint causes, and at the beginning of the entry process of the tread plate first causes a release of this blockage. According to a preferred embodiment of the invention, it is provided to let the power drive act by means of a push and pull rod on the tread plate, but no firm connection between the tread plate and the

Push and pull rod is made, but a resilient element is interposed. Such a way can after

completed complete extension of the tread plate, which thereby rests on the platform the push and pull rod are moved to a certain path portion, said movement to the blocking device of the displaceable

Swivel joint is transmitted and the blocking

performs.

The lifting of the blockage is also carried out by this further path section, since the push and pull rod must first cover this before the movement of the tread plate begins and this movement, the release of the blockage

causes. The transmission of the blocking or release force takes place advantageously via a locking lever, which is pivotally connected to the pivot lever. At one of its ends of the locking lever is connected to the push and pull rod and at its other end with the

Blocking device of the swivel joint.

In a further development of the invention, it is advisable to equip the gap bridging with a device for preventing the ingress of dirt (scraper). In this case, a cover plate is provided above the tread plate in the passenger compartment floor, said cover plate is provided at its platform edge edge with a scraper. This cover plate has substantially the same

Height level as the surrounding vehicle floor, so that in the car interior caused by the gap bridging level differences, in particular no steps are required. At the platform edge of this cover plate a scraper is to be arranged, which closes the passage space side gap between the cover plate and the tread plate when retracting the tread plate or substantially reduced, so that foreign bodies not, or only up to a certain size in the space under the

Cover plate can penetrate.

It is particularly advantageous if the scraper touches the tread plate and the contact force is at least enhanced by an elastic element.

For example, rubber lips, brushes or metal strips with friction-reducing supports can be used as scrapers.

Brief description of the drawings

They show by way of example:

Fig.l gap bridging retracted.

Fig.2 Spaltüberbrückung extended. Fig.3 Spaltüberbrückung extended, high platform edge. Fig.4 gap bridging extended, low platform edge. Fig.5 gap bridging floor plan.

Fig.6 Spaltüberbrückung extended, traction drive.

Fig.7 gap bridging plan, traction drive.

Fig.8 gap bridging retracted, electrical detent. Fig.9 gap bridging half extended, electrical

Detent.

Fig.10 gap bridging fully extended, electrical

Detent.

Fig.11 Slot bridging retracted, mechanical detent. Fig.12 gap bridging half extended, mechanical

Detent.

Fig.13 Gap bridging, extended, mechanical detent. Fig. 14 Gap bridging, mechanical detent, locked.

Embodiment of the invention

Fig.l shows an example and schematically a

Gap bridging in retracted position.

It is a cross section through a passenger rail vehicle in the area of an exit shown, with a

Gap bridging 1 is provided. The

Passenger rail vehicle is shown in the form of its car body 12, comprising a side rail and a floor structure of a floor panel 13 and a cover plate 2. Between the vehicle and a platform 3 is a gap 4, which by the gap bridging device 1 to

bridge over. This comprises a tread plate 6, which is mounted horizontally slidable at its end of the cart box end by means of a sliding bearing 8. The tread plate 6 is supported from below by a pivoting arm 5 which is pivotally mounted about a sliding pivot joint 7. At the end facing away from the displaceable pivot joint 7, the pivot arm 5 is connected via a hinge 10 to the tread plate 6, this joint 10 is fixedly arranged on the tread plate 6. The pivot arm 5 is acted upon by a restoring force which tries to retract it to its rest position, this is an example in Fig. 1

Retracting device 11, comprising a spring shown. A rotary lever 9 extends between a fixed to the pivot arm 5 pivot lever joint 20 and arranged on the car body 12 pivot axis 19. Thus, the

Mobility of the rotary lever joint 20 is limited to a circular segment, which inevitably adjusts a vertical displacement of the sliding pivot joint 7 when the step plate 6 and thus pivoted pivot arm 5. Fig. 1 shows the retracted state of

Gap bridging 1 as used in particular while driving. An acting on the tread plate 6

Power drive is not shown for ease of illustration.

2 shows an example and schematically a

Gap bridging in extended position. It is the

Gap bridging 1 shown in Fig.l, wherein the

Tread plate 6 is pushed into its widest extended position and the gap 4 is thus bridged. In this extended position, in addition to the vertical displacement 22 of the

slidable pivot joint 7 and the movement of the

Drehhebelgelenks 20 along a circular segment path

seen. The principle shown in FIGS. 1 and 2 still requires a blocking of the vertical displacement of the displaceable pivot joint 20 about the tread plate to be able to use as intended. Such blocking is not shown in Figs. 1 and 2 for ease of illustration. 3 shows by way of example and schematically an extended gap bridging at a high platform edge. It is a gap bridging 1, shown according to the principle shown in Figs. 1 and 2, but wherein the platform 3 has a higher level. Even at higher platforms, the tread plate 6 without difference in level to the platform. 3

to be able to extend, the length of the rotary lever 9 relative to the rotary lever 9 of FIGS. 1 and 2 is shortened. The thus changed kinematics of the gap bridging 1 lifts the

platform side end of the tread plate 6 at the end of her

Extending to the level of platform 3.

4 shows an example and schematically an extended gap bridging at a low platform edge. It is a gap bridging 1, shown according to the principle shown in Figs. 1 and 2, but wherein the platform 3 has a lower level. In order to be able to extend the platform 6 without level difference to the platform 3 even at lower platforms, the length of the rotary lever 9 relative to the rotary lever 9 of FIGS. 1 and 2 is extended. The modified kinematics of the gap bridging 1 lowers the platform side end of the tread plate 6 at the end of its extension process to the level of the platform 3.

5 shows an example and schematically a

Gap bridging in a plan. It is a view from above on a gap bridging 1 in its installation situation in a car body 12. From the car body 12 are in this view sections through two door pillars and parts of the outer wall visible, noticeable. The tread plate 6 is in a partially extended position, its surface is divided into areas with anti-slip surface or coating 18 and sliding surfaces 17, wherein the sliding surfaces 17 occupy a much smaller proportion of the total surface. The

Sliding surfaces 17 are advantageously arranged lower than the surfaces 18 with slip-resistant coating so that they are not directly accessible. A scraper 15 is pivotally connected to a platform side edge of the cover plate 2 with this.

6 shows an example and schematically a

Gap bridging in extended position with a

Traction mechanism. It is shown a gap bridging 1, similar to the Spaltunbrückungen shown in Figs. 1 to 4, but wherein the movement of the displaceable

Swivel joint 14 takes place by means of a traction mechanism in synchronism with the movement of the tread plate 6. The

Gap bridging 1 comprises a force drive 21 acting on the step plate 6, the drive force of which furthermore acts on a traction means 26, which is connected to the displaceable pivot joint 7. The traction means 26 is guided by means of a deflection device 27, for example, a sliding surface or a deflection roller, so that when deflecting the tensile force by 90 degrees as little as possible friction losses occur. In this case, the power drive 21 is equipped with a suitable transmission, which drives the traction means 26 at the speed at which the extended

End position of the tread plate 6 is effected simultaneously with the maximum displacement of the sliding pivot joint 7. The traction means 26 may be designed in this embodiment as a rope, band or chain. The translation of the Gearbox determines the relation of the extension path of the tread plate 6 to the displacement of the displaceable

Swivel joint 7, so that an adaptation to the concrete level of the platform 3 is possible.

7 shows an example and schematically a

Gap bridging in extended position with a

Traction drive in a plan. It is one

Gap bridging 1 with a mechanically driven sliding swivel joint 7 shown in a view from above, wherein a transmission for driving a traction means 26 is shown. The gearbox is as a lever gear

formed with a lever 28 which is pivotally mounted about a pivot point 29 about a vertical axis. The

Lever gear is arranged below the tread plate 6. The lever 28 has two arms, wherein on one of the arms of the power drive 21 engages and on the other arm, the traction means 26 is attached. The two arms of the lever 28 are shown differently in the embodiment shown

executed, whereby a suitable translation to the movement of the sliding pivot joint 7 is made and thus the ratio of the extension of the tread plate to the

Displacement of the sliding pivot joint 7 is fixed.

8 shows an example and schematically a

Gap bridging with an electric detent in

retracted position. It is a gap bridging 1, similar to the embodiment shown in FIGS. 1 to 4, wherein an electrically releasable detent for preventing the sinking of the tread plate 6 is provided under load. For this purpose, a displaceable pivot joint is arranged with a detent in the form of a toothing 30 at one end of the pivot arm 5, which is designed for the positive latching with an electromagnetically movable pin 25. The electromagnetically movable pin 25 is connected to the car body 12 and is driven electrically by a control device 23, so that the positive detent can be produced and released via an electrical signal. The

Control device 23 controls in addition to the electromagnetically movable pin 25 and the power drive 21 and thus the movement of the entire gap bridging. 1

Control signals 24 to a parent door or

Carriage control triggers the movement of the gap bridging 1 and it can be the current status of the gap bridging 1 and error messages to the parent door or car control are transmitted.

9 shows an example and schematically a

Gap bridging with an electric detent in half extended position. It is the gap bridging 1 shown in FIG. 8 during the course of movement, wherein the tread plate 6 has not yet reached its extended end position. The electromagnetic detent is not yet made, the electromagnetically movable pin 25 does not yet engage in the displaceable pivot joint with teeth 30 a.

10 shows by way of example and schematically a

Gap bridging with an electric detent in fully extended position. It is the gap bridging 1 shown in FIGS. 8 and 9, wherein the tread plate 6 has reached its extended end position and at the platform. 3 is applied. The electromagnetically movable pin 25 engages in the toothing of the displaceable pivot joint 30.

Fig. 11 shows by way of example and schematically gap bridging with a mechanical detent in the retracted position. It is a gap bridging 1, shown similar to the basic embodiment shown in FIGS. 1 to 4, but a concrete solution for blocking the

displaceable pivot joint 14 is indicated. This locking and unlocking of the displaceable pivot joint 14 takes place in gezeem embodiment exclusively by the measures provided for the movement of the pedal plate 6 power drive 21. There are no further drives, electromagnets, o.a. required. The basic structure of the

Gap bridging 1 comprises a sliding bearing

Tread plate 6, a pivot arm 5, which is connected via a vertically displaceable pivot joint 14 with the car body 12 of a rail vehicle, and a rotary lever 9. The power drive 21 does not transmit its driving force

directly to the tread plate 6, but to a push and pull rod 31. At this push and pull rod 31, a pressure plate 36 is arranged, via which the actuating force is transmitted to a spring 35, wherein the spring 35 passes this actuating force to the tread plate 6 ,

In this way, the tread plate is elastically decoupled from the drive. It is essential that the elastic properties of the spring 35 are dimensioned so that the spring 35 is not compressed in an extension movement of the tread plate 6, or only minimally. This ensures that the push and pull rod 31 after the tread plate 6 has reached its extended end position and on the

Platform 3 is present, still a certain way can be moved. This additional actuation path, above those the tread plate 6, according to the invention for the

Locking the sliding pivot joint 14 is inserted. For this purpose, at the end of the push and pull rod 31, this is connected to a locking lever 33 which on a

Locking lever fulcrum 34 is rotatably mounted on the pivot arm 5, and which extends at its other end to the sliding pivot joint 14 and at this triggers the locking and unlocking process. The

mentioned components are shown in FIG. 11

retracted position of the tread plate 6 only very difficult to see, however, in Fig. 14, however, clearly visible. Carriage side, a rack 32 is provided, in which a suitable detent in the displaceable

Swivel joint 14 can intervene.

Fig.12 shows by way of example and schematically gap bridging with a mechanical detent in half extended

Position. It is the gap bridging of Fig.11

represented, wherein the tread plate 6 their extended

End position has not yet reached. The spring 35 is

due to the movement of the treadboard. 6

required low force not compressed.

Fig. 13 shows by way of example and schematically a

Gap bridging with a mechanical detent in fully extended position. It is the gap bridging shown in Figure 11, wherein the tread plate 6 has reached its extended end position yet. The tread plate is in contact with the platform 3 and thus, as well as when reaching the maximum extension which the

Sliding bearing 8 allows not to be extended further. The sliding pivot joint 14 has reached its intended displacement 22 upwards, but is not yet locked so that the tread plate 6 can not be entered yet.

Fig. 14 shows by way of example and schematically gap bridging with a mechanical detent in fully extended and locked position. It is the gap bridging shown in Fig. 11, wherein the push and pull rod 31 has been moved by the power drive 21 a certain further path section and thus on the pressure plate 36, the spring 35 is compressed. This further actuation path is transmitted to the locking lever 33, which is thereby deflected at its other end so that it is in the

Latching in the form of a rack 32 engages and the sliding pivot joint 14 in its vertical

Displaceability blocked. The tread plate 6 are loaded in this locked position. To unlock the power drive 21 acts with reverse direction of force on the push and pull rod 31, wherein the first

Unlocking occurs until the spring 35 is relaxed and only then the required for the retraction of the pedal plate 6 force on the pressure plate 36 on the

Tread plate 6 acts.

List of terms

1 gap bridging

2 cover plate

3 platform

4 gap

5 swivel arm

6 tread plate

7 Sliding swivel joint

8 sliding bearing

9 rotary lever

10 joint

11 retraction device

12 carbody

13 floor plate

14 Movable swivel joint with detent

15 scrapers

16 joint

17 sliding surface

18 Slip-resistant surface

19 axis of rotation

20 swivel joint

21 power drive

22 vertical shift

23 control device

24 control signals

25 Electromagnetically movable bolt

26 traction means

27 deflection device

28 levers

29 pivot point

30 Sliding swivel joint with toothing

31 push and pull rod rack

release lever

Unlocking lever pivot spring

printing plate

Claims

claims

Gap bridging (1) for a rail vehicle for bridging the gap (4) between a

Passenger compartment floor and a platform

(3), comprising a tread plate (6) mounted so as to be horizontally slidable by means of a power drive (21) between a retracted position and an arbitrary number of intermediate positions, and a pivoting arm (5) articulated to the tread plate (6) by means of a joint (10) )

characterized in that

the pivot arm (5) at its the hinge (10)

end facing away with a vertically displaceable pivot joint (7) is equipped, wherein the

Displacement of the vertically displaceable pivot joint (7) by the action of the power drive (21).

Gap bridging (1) for a rail vehicle according to claim 1,

characterized in that

a rotary lever (9) is provided, which by means of a rotary lever joint (20) with the pivot arm (5)

is rotatably connected and wherein the the

Rotary lever joint (20) facing away from the rotary lever (9) is arranged rotatably about an arranged on the car body (12) of the rail vehicle axis of rotation (19).

Gap bridging (1) for a rail vehicle according to claim 1,

characterized in that

the displacement of the vertically displaceable

Swivel joint (7) by means of a via Traction mechanism transmitted force effect occurs.

4. Gap bridging (1) for a rail vehicle

Claims 1 to 3,

characterized in that

a retraction device (11) is provided, which exerts a restoring force in a rest position on the pivot arm (5).

5. Gap bridging (1) for a rail vehicle

one of claims 1 to 4

characterized in that the restoring force is applied to the pivot arm (5) by means of a spring.

6. Gap bridging (1) for a rail vehicle

one of claims 1 to 5,

characterized in that the vertically displaceable pivot joint (7) located in the extended position tread plate in its vertical

Freedom of movement is blocked.

7. Gap bridging (1) for a rail vehicle

Claim 6,

characterized in that

the blocking of the vertical freedom of movement of the vertically displaceable pivot joint (7) by means of a positive latching takes place.

8. gap bridging (1) for a rail vehicle after

Claim 7,

characterized in that

the lifting of the blocking of the vertical

Freedom of movement of the vertically movable Swivel joint (7) by means of an electromagnetically movable bolt (25).

9. Gap bridging (1) for a rail vehicle

Claim 8,

characterized in that

the movement of the electromagnetically movable bolt (25) by a control device (23) in response to the control device (23) guided

Control signals (24) takes place.

10. Gap bridging (1) for a rail vehicle

Claim 6,

characterized in that

the blocking as well as the lifting of the blocking of the vertical freedom of movement of the vertical

displaceable pivot joint (7) by means of the power drive (21) applied force takes place.

11. Gap bridging (1) for a rail vehicle

Claim 10,

characterized in that

the power drive (21) acts on a push and pull rod (31), which is connected by means of a spring (35) with the tread plate (6), wherein after reaching the extended position of the tread plate (6) the push and pull rod (31 ) still another path section is movable and this further movement via a locking lever (33) to the displaceable

Swivel joint (14) is transmissible and on the

sliding swivel joint (14) a

Blocking device operated.

12. gap bridging (1) for a rail vehicle according to one of claims 1 to 11,

characterized in that a cover plate (2) above the tread plate (6) in the region of

Passenger compartment floor is provided, these

Cover plate (2) is provided at its platform edge side with a scraper (15).

13. gap bridging (1) for a rail vehicle according to claim 12,

characterized in that the scraper (15) touches the tread plate (6), wherein the contact force is at least reinforced by an elastic element (16).