DE102019128390A1 - SLIDING ENTRANCE DEVICE FOR A PASSENGER TRANSPORT VEHICLE AND PASSENGER TRANSPORT VEHICLE - Google Patents

Abstract

The present invention relates to a sliding step device for a passenger transport vehicle. This has a receiving device, a sliding step and a sliding device for the sliding step. The receiving device at least partially delimits a receiving space for receiving the sliding step and the displacement device. Furthermore, the receiving device has an opening and a flap device, the opening being able to be opened or closed with the aid of the latter. The displacement device is arranged in the receiving space such that the sliding step can be displaced at least partially through the opening in the displacement direction to an outside of the passenger transport vehicle by means of the displacement device. Furthermore, the sliding step device has a heating device, the heating device being configured in such a way, and heating means of the heating device being arranged in the immediate vicinity of the opening frame in and / or on the receiving device so that a contact surface of the opening frame and / or flap can be heated.

Description

Technical area

The present invention relates to a sliding step device for a passenger transport vehicle, in particular for a rail vehicle or a bus. The invention also relates to a passenger transport vehicle with such a sliding entry device.

Prior art

It is known that vehicles for transporting people usually have sliding, folding, swiveling and / or folding doors through which passengers can get into and out of the passenger transport vehicle.

Such passenger transport vehicles can have devices with which a horizontal gap between a platform edge or an access platform and an inner floor of the vehicle can be bridged. In particular, extendable sliding step devices can be provided in the floor area of the vehicle for this purpose, which in the extended state cause an increase in the effective floor of the vehicle from the interior of the vehicle to the edge of the platform and beyond.

The disclosure document WO 2018/134027 A1 discloses a door module for arrangement in a door opening of a wall of a car body of a rail vehicle. The movement of a door leaf is started together with the movement of the sliding step in the direction of the extended end position and a detection signal is generated. When retracted, the sliding step is stowed under the floor in the underbody area of the vehicle.

Disadvantages of the prior art

It is known that devices of this type, although adequately fulfilling their purpose, sometimes suffer from malfunctions. In order to counteract this, known devices have such a complex technical structure that they prove to be disadvantageous in terms of susceptibility to maintenance and / or costs.

Problem

The object of the present invention is therefore to provide a sliding step device for a door area of a passenger transport vehicle which is both simple and robust and at the same time entails low maintenance requirements and reliable functionality.

Solution according to the invention

The above object is achieved by a sliding step device according to claim 1 and by a passenger transport vehicle, in particular a rail vehicle, according to claim 15.

The sliding step device is designed, in particular taking into account and including components of the sliding step device of one or more of the exemplary embodiments thereof described below, to be installed and / or used in a door area of a passenger transport vehicle. Such an arrangement in or on a passenger transport vehicle is referred to as the intended use or assembly.

The information given in the context of this patent application on a longitudinal direction, vertical direction, transverse direction and / or displacement direction relate to the intended use of the sliding step device in the passenger transport vehicle. The longitudinal direction is essentially the same as a longitudinal direction of a car body of the passenger transport vehicle, or also a direction of travel when driving straight ahead. The transverse direction is determined with regard to the shape of the car body and can thus be aligned perpendicular to a possible direction of travel when the passenger transport vehicle is traveling straight ahead. In particular, in the present case a displacement direction of a sliding step of the sliding step device can be the same as the transverse direction, in particular if the sliding step device is arranged in the passenger transport vehicle in such a way that the sliding step is extended in the transverse direction of the passenger transport vehicle. The vertical direction is also to be understood in relation to the intended use of the passenger transport vehicle on a horizontal surface. The vertical direction runs perpendicular to the transverse direction, the displacement direction and the longitudinal direction.

The sliding step device has, inter alia, a receiving device with a receiving space for receiving an extendable sliding step, an opening and an associated opening frame. The opening of the receiving device brings about a connection of the receiving space to an outside of the passenger transport vehicle.

Furthermore, the sliding step device is equipped with a flap device, the flap device being able to release or close the opening of the receiving device by means of a flap opposite the outside. In the closed state, the flap is placed against the opening frame. In particular, this concerns Disclosed a sliding step device, wherein the receiving space of the receiving device can be completely and essentially hermetically sealed, at least with regard to liquids, with the aid of the flap device with respect to the outside. For example, the contact surface of the opening frame essentially completely surrounds the opening, the flap of the flap device being able to have a contact surface that corresponds to it and is likewise essentially completely circumferential. As a result, the circumferential contact surfaces can function as sealing surfaces, so that the flap can essentially completely close the opening.

According to one embodiment, the receiving device of the sliding step device is designed to receive a sliding step and a sliding device for the sliding step. The receiving device at least partially delimits a receiving space for receiving the sliding step and the displacement device. The shifting device can be arranged in the receiving space and at least partially carry the sliding step so that - when the opening is open - the sliding step can be shifted at least partially through the opening in the shifting direction to an outside of the passenger transport vehicle by means of the shifting device. For this purpose, the displacement device can be equipped with a drive device. Furthermore, the sliding step can be provided displaceably in the receiving device by means of the displacement device, so that the sliding step is arranged completely in the receiving space in a retracted position and protrudes through the opening in an extended position. In the extended position, the sliding step is no longer completely in the receiving device, but also not completely outside the receiving device.

In particular, according to a specific, but not mandatory embodiment, what is disclosed does not relate to sliding step devices, with only a brush or cleaning device attached above a sliding step separating the receiving space above the sliding step from the outside. In particular, a brush or cleaning device has no contact surface in the sense of what has been disclosed.

The sliding step device is equipped with a heating device, the heating device being configured in such a way and heating means of the heating device being arranged in the immediate vicinity of the opening frame in and / or on the receiving device so that a contact surface of the opening frame and / or flap can be heated. In particular, the heating means can be installed in and / or on an inner surface of the receiving space and / or the flap so that contact surfaces - present on the flap and / or on the opening frame - can be heated by means of heat conduction through the heating means. In this way it is achieved for the first time that the flap can be opened with a high degree of failure safety by lifting the contact surface of the flap from the contact surface of the opening frame. In the event of undesired adhesion of the contact surfaces to one another, for example due to freezing or sticking due to contamination, an adhesion phenomenon can be loosened or resolved by introducing heat into at least one contact surface.

According to one embodiment of the sliding step device, a contact surface of the flap and / or the opening frame can be heated to at least a temperature of +2 ° C, in particular +3 ° C, preferably +4 ° C. In particular, the heating device is configured and equipped in such a way that the above-described heating can be ensured in a range from -40 ° C. outside temperature up to the stated heating temperatures. It is thus achieved that energy is used efficiently to heat a contact surface or the contact surfaces.

According to one embodiment, the configuration and arrangement of the heating device takes place in such a way that a contact surface or the contact surfaces can be heated to at least +8 ° C, in particular up to +10 ° C, preferably up to +12 ° C. As a result, an adhesion between the flap and the opening frame can be released particularly quickly and reliably.

In the sense of an alternative or additional embodiment of the heating device, the heating means are arranged and dimensioned in such a way that a contact surface and / or the contact surfaces are heated to one of the above-mentioned temperatures within 60 seconds, in particular within 30 seconds, preferably within 20 seconds can.

Accordingly, it is made possible that a frozen state of the flap on the opening frame can be loosened or released very quickly, for example within a braking process until the passenger transport vehicle comes to a standstill.

According to an independent idea, the heating device is activated by a control device in such a way that the contact surfaces can only be heated when the passenger transport vehicle is braking, in particular through the use of electrical energy generated in an electric brake of the passenger transport vehicle.

In the course of a further development, it is disclosed that upper heating means are provided on an inner top side of the receiving device and / or that lower heating means are provided on an inner underside of the receiving device in the immediate vicinity of the opening frame. Upper heating means and / or lower heating means can be mounted and / or fastened on and / or in a corresponding housing wall of the receiving device. This means that the heat energy emitted by the heating means can reach a contact surface particularly quickly and efficiently.

A recess, for example a slot, groove and / or a bore, for receiving the heating means can advantageously be provided in a housing wall of the receiving device and / or the flap. Such a recess can either be closed or open towards the receiving space. In the first case, a closure of the recess after the introduction of heating means is conceivable, for example by filling the recess with epoxy or by attaching a cover.

The transfer of thermal energy from the heating means to a contact surface takes place particularly quickly and energy-efficiently if a side surface of the recess facing the opening frame is not more than 2 cm, in particular less than 1 cm, preferably less than 0.5 cm, from the contact surface of the opening frame is.

In terms of the embodiments described, the aim of the invention is to be able to specifically heat a contact surface between the flap and the opening frame. In particular, the disclosed does not relate to a sliding step device with an extendable sliding step, wherein a surface of the sliding step is provided with a heater. This is because such a heater on or in a surface of the sliding step is not able to specifically thaw frozen contact surfaces, with the aid of these contact surfaces a receiving space of the receiving device can be essentially completely closed off from the outside by interacting with the flap device.

Furthermore, the sliding step device can have insulation means which are arranged on / in the recess for heating means provided in a housing wall of the receiving device and / or on / in the flap of the flap device so that a thermal conductivity in the direction from a heating means to the contact surface is greater than a Thermal conductivity in the direction away from the heating means and away from the contact surface. The functionality of the sliding step device improves accordingly, because the energy required to heat the contact surface is efficiently made available where it is needed and insulated in a direction in which the heat is not needed.

According to one embodiment, insulation means can be arranged on a side surface of a recess of the receiving device facing away from the opening frame and / or on a side surface of a recess of the flap facing away from the contact surface of the flap.

According to a further development, the flap device can have a pivot device, the flap being twisted about a pivot axis when it is opened and closed. In particular, the flap is fastened to the receiving device with the aid of the pivoting device, so that the flap can be pivoted away and in with respect to the opening of the receiving device.

Additionally or alternatively, it is preferably provided that the flap is not connected to the sliding step of the sliding step device, and / or that the flap is attached exclusively to the receiving device, in particular in a displaceable and / or pivotable manner.

One embodiment of the sliding step device includes that heating means are provided in the area of the pivoting device in such a way that relative surfaces of the pivoting device can be heated. In this case, heating means are provided and configured, in particular in the immediate vicinity of relative surfaces of the pivoting device, so that the heating of at least one of these relative surfaces can be achieved analogously to the heating of contact surfaces described above - reference is accordingly made to the above embodiments and configurations. The term “relative surfaces” of the pivoting device describes surfaces of this pivoting device that shift, rotate or move in a quasi-immediate relative movement to one another during a pivoting process. If, according to an exemplary embodiment, the pivot device should be designed as a rolled hinge, for example consisting of three parts, two trades that are connected with a pin, then relative surfaces would form between the pin and the trades and between the trades themselves. The described arrangement of heating means of the heating device in the area or in the pivoting device prevents the pivoting device from sticking to the relative surfaces, in particular through freezing.

It is also conceivable to provide the heating device, in particular heating means of the heating device, in the area of the opening frame of the receiving device so that the heating means heat both the pivoting device and the opening frame in the area of the pivoting device can. This results in particularly efficient heating of the pivoting device and the opening frame in the area of the pivoting device, since only one heating device or correspondingly provided heating means are required.

To further improve the heat input from heating means into a contact surface or relative surface, heat-conducting paste or another heat-conducting medium, in particular a heat-conducting adhesive, can be used between the heating means and the housing wall of the receiving device and / or between the heating means and the pivoting device. In particular, such a medium or adhesive is not applied to a side of the heating means facing away from a contact surface and / or a relative surface. For example, a thermal conductivity of the thermal paste or the adhesive can be at least 0.8 W / (m · K), in particular at least 8 W / (m · K), preferably at least 80 W / (m · K).

According to a further development, the sliding step device has a temperature sensor which is arranged in or on the sliding step device for measuring a temperature in the area of a contact surface. For example, a sensor can be installed in the flap or in a housing wall of the receiving device for this purpose. It is thus possible to always be able to determine temperature conditions in the area of a contact surface, and thus to recognize the risk of freezing at an early stage and to counteract this.

According to one embodiment, the heating means can be based on a thermoelectric functional principle, in particular since excess electrical energy of the passenger transport vehicle can be dissipated in this way. Additionally or alternatively, it is conceivable to operate the heating device with the aid of thermal convection. Correspondingly, a heating medium could be guided through heating channels, for example designed as bores in the housing wall.

Furthermore, in addition to the flap device, a cleaning device can be provided in the area of the opening of the receiving device. A cleaning device can be arranged on an inside of the receiving space that faces a sliding step surface of the sliding step. It can thus be prevented that an excessive amount of dirt and liquid is transported into the receiving space of the receiving device.

In the context of one embodiment of the sliding step device, a sealing device is provided, which can be effectively arranged in the area of the contact surfaces. As an alternative or in addition to this, the flap of the flap device can also have a sealing surface. In particular, a contact surface can also be designed as a sealing surface. Furthermore, a sealing surface of the opening frame can face a sealing surface of the flap, it being possible to use sealing means on one or both sealing surfaces. Thus, at least one sealing surface and sealing means interacting therewith, wherein a sealing surface can also be formed on sealing means, can be understood as a sealing device in the sense of this disclosure. In addition, sealing means can be arranged in a circumferential manner on the opening frame and / or on the flap.

According to a specific embodiment, the sealing device is designed in such a way that it is arranged between the receiving device and the flap of the flap device, so that the receiving space is pressure-proof, preferably pressure-tight, sealed off from the outside. The term “pressurized” or “pressurized” is used to describe an application character of a passenger transport vehicle, in particular a rail vehicle, an interior of such a passenger transport vehicle being protected against sudden pressure fluctuations. For example, driving in tunnels by fast-moving rail vehicles can result in a pressure change surrounding the rail vehicle - for example when entering the tunnel or in the case of other vehicles approaching in the tunnel - propagating into the interior of the passenger transport vehicle. This can cause uncomfortable feelings of pressure, hearing loss and even fainting in passengers.

For example, fast-moving passenger trains are considered to be pressure-capable if there is a maximum change in external pressure between +3900 and -5500 Pa, whereas a cabin pressure change is only ± 1000 Pa with a maximum pressure change rate of 200 Pa / s. These pressure fluctuations apply to a train encounter in the tunnel with a relative speed of 560 km / h, the cross-sectional area ratio vehicle: tunnel being around 1: 8. Further information can be found in leaflet 660 of the UIC Code "Provisions for ensuring the technical compatibility of high-speed trains", UIC, point 4.6.2.1. In addition to this non-binding example, requirements with regard to printer qualification are determined individually, e.g. in accordance with DIN EN 14752, Section 4.10.3 and Appendix C.

According to the preferred option, the term “pressure-tight” is to be understood in such a way that the receiving space of the receiving device is largely independent of pressure with respect to the outside, but at least one maximum change in external pressure as described above, would be felt in an irrelevant manner in the recording room.

According to a further development, it is disclosed that the receiving device has an inner opening for providing maintenance access from the interior of the passenger transport vehicle into the receiving space. In particular, the inner opening requires a fluid connection between the interior and the receiving space, so that the same pressure conditions prevail in both spaces. This measure enables particularly simple access to the receiving device for the purpose of maintenance.

This positive effect is further enhanced by the fact that the door device has, in addition to the inner opening, a maintenance flap device with a maintenance flap for closing the inner opening. In addition, the result is that the maintenance flap device provides a usable area which - except when maintenance is actually being carried out with the maintenance flap open - can be accessed by passengers, for example.

Furthermore, a passenger transport vehicle is disclosed, in particular a rail vehicle or a bus, the passenger transport vehicle having a door area with an interior space and with an outer edge and a door device for enabling passage between an outside and the interior of the passenger transport vehicle. Furthermore, the passenger transport vehicle is equipped with a sliding step device according to one or more of the embodiments described above or combinations thereof. A door area can be designed in such a way that a passenger can pass through this door area and step out of the vehicle or into the vehicle via the door device.

The embodiments described above can be combined with one another as desired, but in a sensible way, for example in the heating means both on a contact surface of the opening frame and on a contact surface of the flap.

Figure list

• 1 zeigt ein als Schienenfahrzeug ausgebildetes Personen-transportfahrzeug 100 mit einem Türbereich 105,
• 2 einen Ausschnitt einer perspektivischen Ansicht auf einen Türbereich 105 des Personentransportfahrzeugs 100 gemäß 1,
• 3 einen schematischen Schnitt durch eine Schiebetrittvorrichtung 1, angeordnet in dem Türbereich 105 des Personentransportfahrzeugs 100 gemäß 2, und
• 4 einen Detailschnitt durch eine Gehäusewandung der Aufnahmeeinrichtung der Schiebetrittvorrichtung gemäß 3.

The accompanying drawings illustrate embodiments and, together with the description, serve to explain the principles of the invention. The elements of the drawings are relative to one another and not necessarily to scale. The same reference symbols denote the same or correspondingly similar parts.

• 1 shows a passenger transport vehicle 100 designed as a rail vehicle with a door area 105 ,
• 2 a section of a perspective view of a door area 105 of the passenger transport vehicle 100 according to 1 ,
• 3 a schematic section through a sliding step device 1 , located in the door area 105 of the passenger transport vehicle 100 according to 2 , and
• 4th a detailed section through a housing wall of the receiving device of the sliding step device according to FIG 3 .

Embodiments

To clarify the overall understanding, is based on 1 a passenger transport vehicle designed as a rail vehicle 100 shown. In the exemplary example, this consists of two car bodies, which are driven by means of bogies 112 rollable on rails 120 are supported. Getting passengers on and off the passenger transport vehicle 100 takes place via door devices 106 , these being in a door area 105 of the passenger transport vehicle 100 are provided.

The passenger transport vehicle 100 lays a longitudinal direction 101 , a vertical direction 3 and a cross direction 102 fixed, the passenger vehicle 100 in 1 in a horizontal direction 2 is aligned. Both transverse direction 102 and the longitudinal direction 101 run in 1 in the horizontal direction 2 .

The exemplary passenger transport vehicle 100 to 1 points to at least one door area 105 a door device 106 and a sliding step device 1 on, being a non-limiting embodiment of this sliding step device 1 based on 2 , 3 and 4th will be described in detail.

The sectional view in 3 shown sliding step device 1 is in the intended condition below the floor 107 or in the underbody of the passenger vehicle 100 installed. In 2 is a maintenance hatch 17th a maintenance hatch device 16 to recognize which part of the floor 107 of the area 105 forms.

In the area of an outer edge 109 of the passenger transport vehicle 100 is a flap device 20th with one flap 21 the sliding step device 1 intended. Is the flap 21 open - in 2 represented by a broken line - this is how a sliding step 30th the Sliding step device 1 over the opening 12th from a recording room 11 a receiving facility 10 in an outside 111 of the passenger transport vehicle 100 be extended. In 2 the extended sliding step is also shown by a broken line.

3 shows the sliding step device in detail 1 with retracted sliding step 30th and closed flap 21 the flap device 20th . The sliding step device 1 comprises a receiving device 10 who have a recording room 11 forms. The receiving facility 10 is suitable for an extendable sliding step 30th and a shifting device 40 but with a drive device for moving the sliding step 30th to record.

Furthermore, the sliding step device comprises 1 the opening 12th , the opening frame 13th the opening 12th , and the flap device 20th to close the opening 12th by means of a flap 21 . In addition, a maintenance flap device 16 with maintenance hatch 17th as shown.

The flap device 20th can use the recording room 11 the receiving facility 10 close. For example, the flap 21 by means of a swivel device 22nd in the area of an opening frame 13th the opening 12th be pivoted so that - as in 2 to recognize - an open flap 21 in the vertical direction 3 swings down and the opening 12th releases.

A pressure upgrade of the sliding step device 1 can be achieved by adding a sealing device 60 effective between the opening 12th , ie the opening frame 13th , and the flap 21 is provided. For this purpose, sealants can be used between contact surfaces 14th of the opening frame 13th and the flap 21 be provided. According to the embodiment, a contact surface functions as a sealing surface.

Inside the recording room 11 is the sliding device 40 at the reception facility 10 attached, so that this is the sliding step 30th can carry and lead. This is done in such a way that the sliding step 30th both completely inside the recording room 11 , as well as the opening 12th be positioned protruding.

In order to enable an automated retraction and extension, the receiving device is inside 10 a drive device with drive means on the displacement device 40 or directly at the reception facility 10 assembled.

Drives the passenger vehicle 100 If an access platform for passengers is attached, a horizontal one can be used 2 between the outer edge 109 and the access platform using the sliding step device 1 be bridged. For this purpose, the displacement device 40 is activated either automatically, for example by sensor recognition, or by an active opening signal. This will open the flap 21 the flap device 20th open. As a result, the sliding step 30th in the horizontal direction 2 (in the direction of displacement) are extended until the gap is covered to a sufficient extent.

Next to the opening 12th to the outside 111 can the receiving facility 10 an inner opening 42 in the interior 101 of the passenger transport vehicle 100 exhibit. The inner opening 42 is in normal use with a maintenance hatch 41 locked, with a maintenance access to the receiving room 11 by opening the maintenance flap 41 from the interior 101 can be provided from.

At the same time, the maintenance hatch 41 as soil 107 of the door area 105 serve. The maintenance hatch 41 is preferably form-fitting in a frame of the inner opening 42 stored and locked, with a pressure-proof seal between the interior 101 and recording room 11 is waived. Accordingly prevail in the recording room 11 and in the interior 101 the same printing conditions.

Furthermore, on one of the sliding steps 31 the sliding step 30th facing inside of the receiving device 10 a cleaning facility 50 be provided when retracting the sliding step 30th in the recording room 11 on the sliding step 31 Any dirt, liquids and / or deposits are removed.

Furthermore shows 3 and 4th an advantageous, but not limiting embodiment of the sliding step device 1 with a specific arrangement of a heater 70 . The heating device 70 comprises at least upper heating means 71 , arranged in a top 15th a housing wall 17th the receiving facility 10 , lower heating means 72 , arranged in a bottom 16 the housing wall 17th , and heating means 73 , provided in the swivel device 22nd . It is also conceivable (not shown here) to have additional heating means in lateral sides of the housing wall 17th , preferably the opening frame 13th to continuously block.

Is now using a temperature sensor 75 , in 3 and 4th exemplarily arranged in the top 15th and directly on the contact surface 14th , found that a temperature at the contact surface 14th there is a risk of the flap freezing 21 on the opening frame 13th indicated, the heating device 70 to be activated. There heat the heating means 71 , 72 and 73 their immediate surroundings and the contact areas 14th to a temperature above the freezing point of water, for example to 2 ° C, in particular to 3 ° C, preferably to 4 ° C. This releases any frozen connection from the flap 21 and opening frame 13th and / or a frozen swivel device 22nd . This loosening by thawing is advantageously only carried out when the sliding step 30th from the opening 12th should be extended.

It is also conceivable that the flap 21 either automatically on its own or by means of suitable transmission of a movement of the sliding step 30th or the displacement device 40 on the flap 21 to open. Is there a difficulty or hindrance when opening the flap device 20th before this is detected. A frozen or stuck flap 21 leads to an increased expenditure of force, if not even to an impossibility of opening. In these cases, the heating device 70 activated, whereby not only a frozen connection, but also a connection of the flap that is stuck together by dirt 21 and contact area 14th can be loosened and / or loosened by heating.

4th illustrates an embodiment of the sliding step device 1, with the upper heating means as an example 71 in a recess 18th in the top 15th the housing wall 17th are arranged. In particular, the heating means 71 using a thermally conductive adhesive 76 firmly in the recess 18th intended. This results in a particularly energy-efficient heat transfer from the heating means 71 towards the contact area 14th enables.

There are also isolating agents 74 at the contact surface 14th facing away sides of the recess 18th arranged. This achieves that from the upper heating means 71 provided heat intensified towards the contact surface 14th and less strongly in one of the contact areas 14th remote area of the top 15th the housing wall 17th is initiated. In particular, a shortest distance is 77 between the upper heating means 71 and the contact area 14th , especially in the horizontal direction 2 , not more than 2 cm, in particular less than 1 cm, preferably less than 0.5 cm.

The detailed design of an arrangement of heating means described above 71 in the reception facility 10 can also be used for the arrangement of the lower heating means 72 be valid.

Although specific embodiments have been shown and described herein, it is within the scope of the present invention to suitably modify the shown embodiments without departing from the scope of the present invention, for, for example, the sliding step device described can 1 not only in the transverse direction 101 , but also in the longitudinal direction 113 in a passenger transport vehicle 100 be arranged; ie, should a passenger transport vehicle, for example a bus, have a door device in the longitudinal direction at the end of the vehicle, then for example the edge-side lifting section of the floor element would now be an end-side lifting section.

List of reference symbols

1

Sliding step device

2

Horizontal direction

3

Vertical direction

10

Receiving facility

11

Recording room

12th

opening

13th

Opening frame

14th

Contact area

15th

Top

16

bottom

17th

Housing wall

18th

Recess

19th

Side face

20th

Flap device

21

flap

22nd

Swivel device

23

Flap frame

24

Swivel axis

30th

Sliding step

31

Sliding step surface

40

Sliding device

41

Maintenance hatch

42

Inner opening

50

Cleaning facility

60

Sealing device

70

Heating device

71

upper heating means

72

lower heating means

73

Heating means

74

Isolating agent

75

Temperature sensor

76

Glue

77

distance

100

Passenger transport vehicle

101

inner space

102

Transverse direction

103

Vertical direction

104

Longitudinal direction

105

Door area

106

Door device

107

ground

108

Door leaf

109

Outer edge

111

Outside

112

bogie

120

rail

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2018/134027 A1 [0004]

Claims (15)

Having a sliding step device (1) for a door area (105) of a passenger transport vehicle (100) - a receiving device (10) with a receiving space (11), an opening (12) and an opening frame (13), wherein the receiving device (10) is designed to receive an extendable sliding step (30), - A flap device (20) with a flap (21) for opening the opening (12) and for closing it against an outside (111) of the passenger transport vehicle (100) by placing the flap (21) on the opening frame (13), and - A heating device (70) with heating means (71, 72, 73), wherein the heating device (70) is configured in such a way and the heating means (71, 72, 73) in such a way in the immediate vicinity of the opening frame (13) in and / or on the Receiving device (10) are arranged so that at least one contact surface (14) of the opening frame (13) and / or flap (21) can be heated. Sliding step device (1) after Claim 1 , wherein upper heating means (71) are arranged on an upper side (15) and / or lower heating means (72) are arranged on an underside (16) of the receiving device (10) in the immediate vicinity of the opening frame (13). Sliding step device (1) after Claim 1 or 2 , wherein upper heating means (71) and / or lower heating means (72) extend essentially over an entire width of the opening (12), and / or wherein the heating means (71, 72) extend over an entire circumference of the opening frame (13) extend. Sliding step device (1) according to one of the preceding claims, wherein a recess (18) for receiving heating means (71, 72) is provided in a housing wall (17) of the receiving device (10) and / or the flap (21), in particular wherein the Recess (18) towards the receiving space (11) is at least partially open. Sliding step device (1) after Claim 4 , wherein a side surface (19) of the recess (18) facing the opening frame (13) is spaced no more than 2 cm, in particular 1 cm, preferably 0.5 cm, from the contact surface (14) of the opening frame (13). Sliding step device (1) after Claim 4 or 5 wherein insulation means (74) are provided in the region of a side surface of the recess (18) facing away from the opening frame (13) or a contact surface (14). Sliding step device (1) according to one of the preceding claims, wherein the flap (21) is flexibly connected to the receiving device (10), in particular pivotably and / or displaceably, and / or wherein the flap device (20) is connected to the receiving device (10). connected pivot device (22), the flap (21) being pivoted about a pivot axis (24) when opening and closing. Sliding step device (1) after Claim 7 , wherein the pivoting device (22) has heating means (73), the heating device (70) being configured in this way, and the heating means (73) of the pivoting device (22) in the immediate vicinity of relative surfaces of the pivoting device (22) in / or on the Pivoting device (22) are arranged so that at least the relative surfaces can be heated. Sliding step device (1) according to one of the preceding claims, wherein the contact surface (14) and / or a relative surface can be heated to a minimum temperature of 2 ° C, in particular 3 ° C, preferably 4 ° C, in particular with an outside temperature of the outside (111) is not below -40 ° C and / or does not exceed + 2 ° C. Sliding step device (1) according to one of the preceding claims, wherein between heating means (71, 72) and receiving device (10) and / or between heating means (73) and pivoting device (22) a heat-conducting paste (110), in particular designed as an adhesive, is provided, in particular wherein a thermal conductivity of the thermal paste is at least 0.8 W / (m · K), in particular at least 8 W / (m · K), preferably at least 80 W / (m · K). Sliding step device (1) according to one of the preceding claims, wherein heating means (71, 72, 73) are linear. Sliding step device (1) according to one of the preceding claims, having at least one temperature sensor (75) arranged to measure a temperature in the area of a contact surface (14) of the opening frame (13) and / or flap (21) and / or the pivoting device (22). Sliding step device (1) according to one of the preceding claims, wherein the heating means (71, 72, 73) are based on thermoelectric functionality. Sliding step device (1) according to one of the preceding claims, having a cleaning device (50) for cleaning a sliding step surface (31) of the sliding step (30). Passenger transport vehicle (100) having a door area (105), an interior space (101), a door device (106) for enabling passage between the outside (111) and the interior space (101) of the passenger transport vehicle (100), and a sliding step device (1) according to one of the preceding claims.

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