EP3793878B1 - Rail vehicle with an ascent aid - Google Patents
Rail vehicle with an ascent aid Download PDFInfo
- Publication number
- EP3793878B1 EP3793878B1 EP19746026.4A EP19746026A EP3793878B1 EP 3793878 B1 EP3793878 B1 EP 3793878B1 EP 19746026 A EP19746026 A EP 19746026A EP 3793878 B1 EP3793878 B1 EP 3793878B1
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- European Patent Office
- Prior art keywords
- rail vehicle
- sfz
- pos2
- connecting rod
- folding
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- 101100366707 Arabidopsis thaliana SSL11 gene Proteins 0.000 claims description 7
- 101100366562 Panax ginseng SS12 gene Proteins 0.000 claims description 7
- 101100366711 Arabidopsis thaliana SSL13 gene Proteins 0.000 claims description 5
- 101100366561 Panax ginseng SS11 gene Proteins 0.000 claims description 5
- 101100202463 Schizophyllum commune SC14 gene Proteins 0.000 claims description 2
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
- B61D23/025—Folding steps for railway vehicles, e.g. hand or mechanically actuated electrically or fluid actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
Definitions
- the invention relates to a ladder on a rail vehicle with a step and two side bars, wherein the rail vehicle has a vehicle body and the step is arranged longitudinally on the side of the vehicle body.
- Rail vehicles such as traction units and control cars, have a driver's cab from which the rail vehicle is controlled.
- the driver's cab is located very high in the rail vehicle to ensure an optimal view of the track system.
- steps are arranged on the outside of the rail vehicle as an ascent or descent, which are intended to connect the driver's cab to the track level.
- the steps are arranged along a vertical line and thus have a similar function to a vertical ladder.
- the handrails and/or steps protrude outwards in relation to the outside of the rail vehicle and are limited in position and dimensions by a clearance profile of the rail vehicle, which must also be observed.
- the clearance profile is defined perpendicular to the longitudinal axis of the rail vehicle and is a measure of the cross-section of the rail vehicle. It tapers in the lower area towards the track body. This creates a safe area that must be kept clear between the conductor components on the one hand and the track body on the other, which takes into account the conditions of the track body (for example signal devices such as beacons, switch drives, etc.) and thus avoids collisions during operational (driving) operation of the rail vehicle.
- signal devices such as beacons, switch drives, etc.
- the position of the lowest step and the position of the ends of the handrails are therefore determined on the rail vehicle by the clearance gauge to be maintained, and the lowest step is therefore arranged at a predetermined height on the rail vehicle.
- This predetermined height of the lowest step must be overcome by a rail vehicle driver who is, for example, on the track by taking a wide step in a vertical direction.
- a swivel step which has a step held by two arms and a drive for swiveling the arms around a common swivel axis.
- the drive moves the step from a retracted position to an extended position and vice versa.
- FIG 6 shows another well-known solution for an improved ladder using a SKODA locomotive, series BR 102.
- the lowest step can be extended or retracted vertically.
- a retractable step for a vehicle whereby the vehicle can be converted between rail-bound and road-bound operation.
- the retractable step consists of a channel-shaped base which is mounted on the underside of the vehicle and can be folded in on itself in the longitudinal direction of the vehicle. Folding and movement are carried out by means of a pair of hydraulic cylinders and their pistons.
- the present invention can be implemented in the rail vehicle without implementation in the rail vehicle software. This eliminates the need for associated validations.
- the present invention can be implemented cost-effectively in the rail vehicle.
- the present invention ensures that the step is securely locked in a predetermined position on the rail vehicle even in the event of a pressure drop in order to ensure the (driving) operation of the rail vehicle.
- FIG 1 shows a top view of a rail vehicle SFZ with inventive access in a partial view.
- the rail vehicle SFZ is shown here lengthwise, but only halfway. It contains a driver's cab FS1 and FS2 at each end.
- step TS For each driver's cab FS1, FS2, two inventive access steps with step TS are provided, so that a rail vehicle driver as operating personnel has access to each of the driver's cabs FS1, FS2 from each side of the rail vehicle SFZ and can climb up to or down from the driver's cab FS1, FS2 safely and easily.
- the step TS has a width BR and a step depth TT, which are defined for safe use by the rail vehicle driver.
- the elongated step TS with the width BR has two ends in the longitudinal direction.
- step TS At a first end of the step TS, it is connected to a first folding mechanism KMER, which is referred to as “folding mechanism with locking mechanism” and is shown in the following figure FIG 2 is explained in detail.
- first folding mechanism KMER which is referred to as "folding mechanism with locking mechanism” and is shown in the following figure FIG 2 is explained in detail.
- step TS At a second end of the step TS, it is connected to a second folding mechanism KMAR, which is referred to as "folding mechanism unfolded and latching" and is shown in the following figure FIG 3 is explained in detail.
- KMAR folding mechanism unfolded and latching
- FIG 2 shows with reference to FIG 1 the ascent according to the invention in a first view AA with the first folding mechanism KMER ("folding mechanism folded in, locking").
- the step TS is shown here in a cross view with its step depth TT.
- the TS step is connected at its first end, viewed lengthwise, to the lower end of two side bars SS11, SS12. This connection is made via two hinges SC11 and SC12.
- the two side rods SS11, SS12 are connected at their respective upper ends to the vehicle body FZK of the rail vehicle SFZ. This connection is made via two hinges SC13 and SC14.
- the second side rod SS12 is additionally connected to the vehicle body FZK via a connecting rod VS1. This connection is also made via two hinges SC15 and SC16.
- the connecting rod VS1 is divided into two parts by a folding hinge KS1.
- the folding hinge KS1 preferably has a stop that forms a mechanical limit for the movement of the folding hinge KS1 and thus represents part of a locking mechanism described below.
- the step TS is mounted so that it can rotate or fold between a first position POS1 and a second position POS2.
- step TS In the first position POS1 of the step TS, an ascent (for example of a rail vehicle driver) to the driver's cab FS1 of the rail vehicle SFZ is supported; the step is "folded out” in a similar way and with reference to the rail vehicle.
- ascent for example of a rail vehicle driver
- the TS step is folded inwards and upwards with respect to the SFZ rail vehicle, so that a specified clearance profile of the SFZ rail vehicle is maintained.
- the clearance profile is selected in such a way that collisions between the TS step and installations near the track are avoided when the SFZ rail vehicle is travelling.
- the step TS is folded out or in transversely to the longitudinal direction of the rail vehicle SFZ between the positions POS1 and POS2 via a rotary movement.
- the force acting on the folding hinge KS1 is carried out via a first cylinder ZYL1 of a cylinder drive, which is connected to both the folding hinge KS1 and the vehicle body FZK.
- a first cylinder ZYL1 of a cylinder drive which is connected to both the folding hinge KS1 and the vehicle body FZK.
- an additional hinge is preferably provided on the vehicle body,
- step TS In the position POS1 shown here (step TS is "folded out"), the first cylinder ZYL1 of the cylinder drive is extended (e.g. to the maximum) and the connecting rod VS1 has a kink.
- step TS is "folded in"
- the first cylinder ZYL1 would be retracted and the connecting rod VS1 would be fully extended or straight.
- FIG 3 shows with reference to FIG 1 the ascent according to the invention in a second view BB with the second folding mechanism KMAR ("folding mechanism unfolded, locking").
- the step TS is shown here in a cross view with its step depth TT.
- the TS step is connected at its second end, viewed lengthwise, to the lower end of two side bars SS21, SS22. This connection is made via two hinges SC21 and SC22.
- the two side rods SS21, SS22 are connected at their respective upper ends to the vehicle body FZK of the rail vehicle SFZ. This connection is made via two hinges SC23 and SC24.
- the second side rod SS22 is additionally connected to the vehicle body FZK via a connecting rod VS2. This connection is also made via two hinges SC25 and SC26.
- the connecting rod VS2 is divided into two parts by a folding hinge KS2.
- the folding hinge KS2 preferably has a stop that forms a mechanical limit for the movement of the folding hinge KS2 and thus represents part of a locking mechanism described below.
- the step TS is arranged so that it can rotate or fold between the first position POS1 and the second position POS2.
- the access to the driver's cab FS1 of the rail vehicle is made as described above.
- the TS step is folded inwards and upwards with respect to the SFZ rail vehicle, so that a specified clearance profile of the SFZ rail vehicle is maintained.
- the clearance profile is selected in such a way that collisions between the TS step and installations near the track are avoided when the SFZ rail vehicle is travelling.
- the step TS is folded out or in transversely to the longitudinal direction of the rail vehicle SFZ between the positions POS1 and POS2 via a rotary movement.
- the force acting on the folding hinge KS2 is carried out via a second cylinder ZYL2 of a cylinder drive, which is connected to both the folding hinge KS2 and the vehicle body FZK.
- a second cylinder ZYL2 of a cylinder drive which is connected to both the folding hinge KS2 and the vehicle body FZK.
- an additional hinge is preferably provided on the vehicle body,
- step TS is "folded out"
- the second cylinder ZYL2 of the cylinder drive is retracted (e.g. to the maximum) and the connecting rod VS2 is fully extended, i.e. has no bend.
- step TS In the second position POS2 (step TS is "folded in") the second cylinder ZYL2 would be extended and the connecting rod VS2 would then have a kink.
- FIG 4 shows with reference to the figures FIG 1 to FIG 3 an advantageous further development of the inventive rise.
- a handrail HS is installed on the rail vehicle SFZ to assist the operating personnel in climbing safely.
- the handrail HS contains an integrated actuation mechanism BL, SE, which controls the two cylinders ZYL1, ZYL2 of the cylinder drive.
- Pressure lines for the cylinders ZYL1, ZYL2 are controlled via a switch EN, which is an integrated part of the hand rod HS.
- the switch EN is preferably designed as part of an actuating bar which is integrated in the hand rod HS.
- the operating bar is designed in such a way that it can be operated both in an upper area (i.e. when the rail vehicle driver leaves the driver's cab) and in a lower area (i.e. when the rail vehicle driver is standing on the track bed).
- the actuating bar activates the switching element SE, which is designed as a pneumatic valve, for example.
- the step TS is extended to the first position POS1 via the pressure lines, but only as long as the rail vehicle driver has one hand on the hand bar HS with actuating bar BL.
- step TS retracts with a time delay until the position POS2 is reached.
- the time delay is necessary because if the operating bar BL is accidentally released briefly, the step TS must not retract immediately in order to prevent accidents.
- the arrangement according to the invention has the following operating behavior: When getting in or out, the driver operates the operating bar BL. This activates the switching element SE and the pressure chamber of the cylinder ZYL1 and the pressure chamber of the cylinder ZYL2 are pressurized (e.g. by air or oil).
- the second cylinder ZYL2 retracts, the first cylinder ZYL1 extends and so the two cylinders ZYL1, ZYL2 push the step TS into the extended position POS1.
- the second cylinder ZYL2 moves against the stop of the folding hinge KS2 and blocks the unfolding movement.
- the associated folding connecting rod VS2 is fully extended.
- the TS step is extended with an audible hissing noise. The driver can climb onto the TS step safely.
- the step TS appears stable because the second connecting rod VS2 is fully extended.
- the (possibly pneumatic) hissing noise would alert the driver that he is no longer holding down the BL actuation bar and he will instinctively press harder with his hands to properly activate the BL actuation bar again.
- the first cylinder ZYL1 slowly retracts and the second cylinder ZYL2 slowly extends. This causes the step TS to slowly retract and move to the second position POS2.
- the first cylinder ZYL1 moves against the stop of the folding hinge KS1 and fixes the step TS in the retracted position by stretching the associated connecting rod VS1.
- the arrangement according to the invention has a fail-safe functionality. In the event of line breaks and the associated pressure loss, the respective springs in the cylinders ZYL1, ZYL2 press the step TS into the position POS2.
- FIG 5 shows an alternative embodiment of the inventive ascent in a schematic representation.
- the step moves again between a first position POS1 (unfolded position) and a second position POS2 (folded position).
- FIG 1 to FIG 4 describe the folding or unfolding of the step TS achieved by a rotating movement of parallel side bars.
- FIG 5 The movement of the step TS shown here comes into consideration.
- step TS is again connected to the vehicle body FZK via side bars SS1, SS2 and via hinges or bearings FL1, FL2.
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Description
Die Erfindung betrifft einen Aufstieg an einem Schienenfahrzeug mit einer Trittstufe und mit zwei Seitenstangen, wobei das Schienenfahrzeug einen Fahrzeugkasten aufweist und die Trittstufe in Längsrichtung seitlich am Fahrzeugkasten angeordnet ist.The invention relates to a ladder on a rail vehicle with a step and two side bars, wherein the rail vehicle has a vehicle body and the step is arranged longitudinally on the side of the vehicle body.
Schienenfahrzeuge, wie Triebfahrzeuge und Steuerwägen, besitzen einen Führerstand, von dem aus das Schienenfahrzeug gesteuert wird. Der Führerstand ist zur Gewährleistung einer optimalen Sicht auf die Gleisanlage sehr hoch im Schienenfahrzeug angeordnet. Um den Führerstand erreichen zu können, sind an der Außenseite des Schienenfahrzeugs Trittstufen als Auf- bzw. Abstieg angeordnet, die zur Verbindung des Führerstands mit dem Gleisniveau vorgesehen sind. Die Trittstufen sind längs einer vertikalen Linie angeordnet und haben damit die vergleichbare Funktion einer vertikal stehenden Leiter.Rail vehicles, such as traction units and control cars, have a driver's cab from which the rail vehicle is controlled. The driver's cab is located very high in the rail vehicle to ensure an optimal view of the track system. In order to be able to reach the driver's cab, steps are arranged on the outside of the rail vehicle as an ascent or descent, which are intended to connect the driver's cab to the track level. The steps are arranged along a vertical line and thus have a similar function to a vertical ladder.
Aufgrund betrieblicher Unfallverhütungsvorschriften weisen die Trittstufen großflächige Trittflächen auf. Zusätzlich sind seitlich der Leiter Handstangen vorgesehen, um dem Schienenfahrzeugführer ein sicheres Auf- und Absteigen am Schienenfahrzeug zu ermöglichen. Trittstufen und Handstangen bilden somit Komponenten der Leiter bzw. der Leiterfunktionalität.Due to company accident prevention regulations, the steps have large treads. In addition, handrails are provided on the sides of the ladder to enable the rail vehicle driver to climb on and off the rail vehicle safely. Steps and handrails therefore form components of the ladder or the ladder functionality.
Abmessungen und Positionen der Trittstufen samt Handstangen sind in Normen definiert und damit zwingend festgelegt.Dimensions and positions of the steps including handrails are defined in standards and are therefore mandatory.
Die Handstangen und/oder Trittstufen ragen in Bezug zur Außenseite des Schienenfahrzeugs exponiert nach außen vor und werden in Position und Abmessung durch ein ebenfalls einzuhaltendes Lichtraumprofil des Schienenfahrzeugs begrenzt.The handrails and/or steps protrude outwards in relation to the outside of the rail vehicle and are limited in position and dimensions by a clearance profile of the rail vehicle, which must also be observed.
Das Lichtraumprofil ist senkrecht zur Längsachse des Schienenfahrzeugs definiert und ist ein Maß für den Querschnitt des Schienenfahrzeugs. Es verjüngt sich im unteren Bereich in Richtung zum Gleiskörper. Dadurch wird ein freizuhaltender, sicherer Bereich zwischen den Leiterkomponenten einerseits und dem Gleiskörper andererseits realisiert, der Gegebenheiten des Gleiskörpers (beispielswiese Signalgeber wie Balisen, Weichenantriebe, etc.) berücksichtigt und damit Kollisionen im operativen (Fahr-)Betrieb des Schienenfahrzeugs vermeidet.The clearance profile is defined perpendicular to the longitudinal axis of the rail vehicle and is a measure of the cross-section of the rail vehicle. It tapers in the lower area towards the track body. This creates a safe area that must be kept clear between the conductor components on the one hand and the track body on the other, which takes into account the conditions of the track body (for example signal devices such as beacons, switch drives, etc.) and thus avoids collisions during operational (driving) operation of the rail vehicle.
Die Position der untersten Trittstufe sowie die Position der Enden der Haltstangen sind am Schienenfahrzeug also durch das einzuhaltende Lichtraumprofil festgelegt, die unterste Trittstufe ist somit in einer vorbestimmten Höhe am Schienenfahrzeug angeordnet. Diese vorbestimmte Höhe der untersten Trittstufe muss von einem Schienenfahrzeugführer, der sich beispielsweise auf dem Gleiskörper befindet, durch einen weitausholenden Schritt in vertikaler Richtung überwunden werden.The position of the lowest step and the position of the ends of the handrails are therefore determined on the rail vehicle by the clearance gauge to be maintained, and the lowest step is therefore arranged at a predetermined height on the rail vehicle. This predetermined height of the lowest step must be overcome by a rail vehicle driver who is, for example, on the track by taking a wide step in a vertical direction.
Steigendes Sicherheits- und Komfortbewusstsein der Bahnbetreiber führt zunehmend zu der Forderung, am Schienenfahrzeug eine weitere, als Aufstieg benutzbare Trittstufe anzuordnen. Dies soll entsprechend der obigen Schilderung zwischen dem Gleiskörper und der vorbestimmten Höhe angeordnet sein, jedoch nur während des Auf- bzw. Abstiegs des Fahrzeugführers zur Verfügung stehen. Im operativen (Fahr-)Betrieb des Schienenfahrzeugs soll das vorgegebene Lichtraumprofil freigehalten werden, so dass Lösungen mit einer beweglich ausgebildeten, untersten Trittstufe bekannt sind.The increasing awareness of safety and comfort among railway operators is increasingly leading to the requirement to install an additional step on the rail vehicle that can be used as a ladder. This should be installed between the track and the predetermined height as described above, but should only be available when the driver is climbing up or down. When the rail vehicle is in operation, the specified clearance profile should be kept clear, so solutions with a movable, lowest step are known.
Aus der Druckschrift
Auch
Aus der Druckschrift
Aus den Druckschriften
Es ist die Aufgabe der vorliegenden Erfindung, eine weitere Lösung für einen Auf- bzw. Abstieg an einem Schienenfahrzeug anzugeben, der es dem Schienenfahrzeugführer erlaubt, den Führerstand leicht und sicher zu erreichen bzw. zu verlassen.It is the object of the present invention to provide a further solution for boarding or disembarking a rail vehicle, which allows the rail vehicle driver to reach or leave the driver's cab easily and safely.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den weiteren Ansprüchen angegeben.This object is achieved by the features of claim 1. Advantageous further developments are specified in the further claims.
Die vorliegende Erfindung ist im Schienenfahrzeug ohne Implementierung in die Schienenfahrzeug-Software realisierbar. Damit entfallen damit im Zusammenhang stehende Validierungen.The present invention can be implemented in the rail vehicle without implementation in the rail vehicle software. This eliminates the need for associated validations.
Die vorliegende Erfindung ist kostengünstig im Schienenfahrzeug implementierbar.The present invention can be implemented cost-effectively in the rail vehicle.
Die vorliegende Erfindung gewährleistet auch bei einem Druckabfall eine sichere Verriegelung der Trittstufe in einer vorgegebenen Position am Schienenfahrzeug, um den (Fahr-)Betrieb des Schienenfahrzeugs sicherzustellen.The present invention ensures that the step is securely locked in a predetermined position on the rail vehicle even in the event of a pressure drop in order to ensure the (driving) operation of the rail vehicle.
Nachfolgend wird die vorliegende Erfindung beispielhaft anhand von Zeichnungen näher beschrieben. Dabei zeigt:
- FIG 1
- eine Draufsicht eines Schienenfahrzeugs mit erfindungsgemäßen Aufstieg in einer Teildarstellung,
- FIG 2
- mit Bezug auf
FIG 1 den erfindungsgemäßen Aufstieg in einer ersten Ansicht, - FIG 3
- mit Bezug auf
FIG 1 den erfindungsgemäßen Aufstieg in einer zweiten Ansicht, - FIG 4
- mit Bezug auf die Figuren
FIG 1 bis FIG 3 eine vorteilhafte Weiterbildung des erfindungsgemäßen Aufstiegs, - FIG 5
- eine alternative Ausgestaltung des erfindungsgemäßen Aufstiegs in einer Prinzip-Darstellung, und
- FIG 6
- den in der Einleitung beschriebenen Stand der Technik.
- FIG 1
- a top view of a rail vehicle with a ladder according to the invention in a partial view,
- FIG 2
- regarding
FIG 1 the inventive ascent in a first view, - FIG 3
- regarding
FIG 1 the inventive ascent in a second view, - FIG 4
- with reference to the figures
FIG 1 to FIG 3 an advantageous further development of the inventive rise, - FIG 5
- an alternative embodiment of the inventive ascent in a schematic representation, and
- FIG 6
- the state of the art described in the introduction.
Das Schienenfahrzeug SFZ ist hier der Länge nach, jedoch nur zur Hälfte dargestellt. Es beinhaltet an jedem Ende jeweils einen Führerstand FS1 und FS2.The rail vehicle SFZ is shown here lengthwise, but only halfway. It contains a driver's cab FS1 and FS2 at each end.
Für jeden Führerstand FS1, FS2 sind jeweils zwei erfindungsgemäße Aufstiege mit Trittstufe TS vorgesehen, so dass ein Schienenfahrzeugführer als Bedienpersonal von jeder Seite des Schienenfahrzeugs SFZ auf jeden der Führerstände FS1, FS2 Zugang hat und sicher und einfach zum Führerstand FS1, FS2 aufstiegen bzw. von diesem absteigen kann.For each driver's cab FS1, FS2, two inventive access steps with step TS are provided, so that a rail vehicle driver as operating personnel has access to each of the driver's cabs FS1, FS2 from each side of the rail vehicle SFZ and can climb up to or down from the driver's cab FS1, FS2 safely and easily.
Die Trittstufe TS hat eine Breite BR und eine Tritt-Tiefe TT, die für eine sichere Benutzung durch den Schienenfahrzeugführer definiert sind.The step TS has a width BR and a step depth TT, which are defined for safe use by the rail vehicle driver.
Die länglich ausgebildete Trittstufe TS mit der Breite BR weist in Längsrichtung zwei Enden auf.The elongated step TS with the width BR has two ends in the longitudinal direction.
An einem ersten Ende der Trittstufe TS ist diese mit einem ersten Klappmechanismus KMER verbunden, der als "Klappmechanismus eingeklappt rastend" bezeichnet wird und in der nachfolgenden Figur
An einem zweiten Ende der Trittstufe TS ist diese mit einem zweiten Klappmechanismus KMAR verbunden, der als "Klappmechanismus ausgeklappt rastend" bezeichnet wird und in der nachfolgenden Figur
Die Trittstufe TS ist hier in einer Queransicht mit ihrer Tritt-Tiefe TT gezeigt.The step TS is shown here in a cross view with its step depth TT.
Die Trittstufe TS ist in Längsrichtung gesehen an ihrem ersten Ende mit dem jeweiligen unteren Ende zweier Seitenstangen SS11, SS12 verbunden. Diese Verbindung erfolgt über zwei Scharniere SC11 und SC12.The TS step is connected at its first end, viewed lengthwise, to the lower end of two side bars SS11, SS12. This connection is made via two hinges SC11 and SC12.
Die beiden Seitenstangen SS11, SS12 sind mit ihrem jeweiligen oberen Ende mit dem Fahrzeugkasten FZK des Schienenfahrzeugs SFZ verbunden. Diese Verbindung erfolgt über zwei Scharniere SC13 und SC14.The two side rods SS11, SS12 are connected at their respective upper ends to the vehicle body FZK of the rail vehicle SFZ. This connection is made via two hinges SC13 and SC14.
Die zweite Seitenstange SS12 ist zusätzlich über eine Verbindungstange VS1 mit dem Fahrzeugkasten FZK verbunden. Auch diese Verbindung erfolgt über zwei Scharniere SC15 und SC16.The second side rod SS12 is additionally connected to the vehicle body FZK via a connecting rod VS1. This connection is also made via two hinges SC15 and SC16.
Die Verbindungstange VS1 ist durch ein Klappscharnier KS1 zweigeteilt. Dabei weist das Klappscharnier KS1 bevorzugt einen Anschlag auf, der eine mechanische Begrenzung für die Bewegung des Klappscharniers KS1 bildet und somit einen Teil einer nachfolgend beschriebenen Verriegelung darstellt.The connecting rod VS1 is divided into two parts by a folding hinge KS1. The folding hinge KS1 preferably has a stop that forms a mechanical limit for the movement of the folding hinge KS1 and thus represents part of a locking mechanism described below.
Durch Krafteinwirkung am Klappscharnier KS1 und durch die Scharniere SC11 bis SC16 ist die Trittstufe TS zwischen einer ersten Position POS1 und einer zweiten Position POS2 drehbar gelagert bzw. klappbar angeordnet.By applying force to the folding hinge KS1 and the hinges SC11 to SC16, the step TS is mounted so that it can rotate or fold between a first position POS1 and a second position POS2.
In der ersten Position POS1 der Trittstufe TS wird ein Aufstieg (beispielsweise eines Schienenfahrzeugführers) zum Führerstand FS1 des Schienenfahrzeugs SFZ unterstützt, die Stufe ist sinngemäß und mit Bezug zum Schienenfahrzeug quasi "ausgeklappt".In the first position POS1 of the step TS, an ascent (for example of a rail vehicle driver) to the driver's cab FS1 of the rail vehicle SFZ is supported; the step is "folded out" in a similar way and with reference to the rail vehicle.
In der zweiten Position POS2 ist die Trittstufe TS mit Bezug auf das Schienenfahrzeug SFZ nach innen-oben weggeklappt, so dass ein vorgegebenes Lichtraumprofil des Schienenfahrzeugs SFZ einhalten wird. Das Lichtraumprofil ist so gewählt, dass mit werden Kollisionen der Trittstufe TS während der Fahrt des Schienenfahrzeugs SFZ mit gleisnahen Installationen vermieden.In the second position POS2, the TS step is folded inwards and upwards with respect to the SFZ rail vehicle, so that a specified clearance profile of the SFZ rail vehicle is maintained. The clearance profile is selected in such a way that collisions between the TS step and installations near the track are avoided when the SFZ rail vehicle is travelling.
Durch die Krafteinwirkung am Klappscharnier KS1 wird die Trittstufe TS also quer zur Längsrichtung des Schienenfahrzeugs SFZ zwischen den Positionen POS1 und POS2 über eine Drehbewegung aus- bzw. eingeklappt.Due to the force acting on the folding hinge KS1, the step TS is folded out or in transversely to the longitudinal direction of the rail vehicle SFZ between the positions POS1 and POS2 via a rotary movement.
Die Krafteinwirkung auf das Klappscharnier KS1 erfolgt über einen ersten Zylinder ZYL1 eines Zylinderantriebs, der sowohl mit dem Klappscharnier KS1 als auch mit dem Fahrzeugkasten FZK verbunden ist. Am Fahrzeugkasten ist dazu bevorzugt ein weiteres Scharnier vorgesehen,The force acting on the folding hinge KS1 is carried out via a first cylinder ZYL1 of a cylinder drive, which is connected to both the folding hinge KS1 and the vehicle body FZK. For this purpose, an additional hinge is preferably provided on the vehicle body,
In der hier dargestellten Position POS1 (Trittstufe TS ist "ausgeklappt") ist der erste Zylinder ZYL1 des Zylinderantriebs (beispielsweise maximal) ausgefahren und die Verbindungsstange VS1 weist einen Knick auf.In the position POS1 shown here (step TS is "folded out"), the first cylinder ZYL1 of the cylinder drive is extended (e.g. to the maximum) and the connecting rod VS1 has a kink.
In der zweiten Position POS2 (Trittstufe TS ist "eingeklappt") wäre der erste Zylinder ZYL1 eingefahren und die Verbindungsstange VS1 wäre durchgestreckt bzw. gerade. In diesem Zustand würde der hier beschriebene Klappmechanismus unter Verwendung des Anschlags beim Klappscharnier KS1 verriegeln, so dass sich die Bezeichnung "KMER = Klappmechanismus eingeklappt rastend" erklärt.In the second position POS2 (step TS is "folded in"), the first cylinder ZYL1 would be retracted and the connecting rod VS1 would be fully extended or straight. In this state, the folding mechanism described here would lock using the stop on the folding hinge KS1, which explains the designation "KMER = folding mechanism folded in, locking".
Die Trittstufe TS ist hier in einer Queransicht mit ihrer Tritt-Tiefe TT gezeigt.The step TS is shown here in a cross view with its step depth TT.
Die Trittstufe TS ist in Längsrichtung gesehen an ihrem zweiten Ende mit dem jeweiligen unteren Ende zweier Seitenstangen SS21, SS22 verbunden. Diese Verbindung erfolgt über zwei Scharniere SC21 und SC22.The TS step is connected at its second end, viewed lengthwise, to the lower end of two side bars SS21, SS22. This connection is made via two hinges SC21 and SC22.
Die beiden Seitenstangen SS21, SS22 sind mit ihrem jeweiligen oberen Ende mit dem Fahrzeugkasten FZK des Schienenfahrzeugs SFZ verbunden. Diese Verbindung erfolgt über zwei Scharniere SC23 und SC24.The two side rods SS21, SS22 are connected at their respective upper ends to the vehicle body FZK of the rail vehicle SFZ. This connection is made via two hinges SC23 and SC24.
Die zweite Seitenstange SS22 ist zusätzlich über eine Verbindungstange VS2 mit dem Fahrzeugkasten FZK verbunden. Auch diese Verbindung erfolgt über zwei Scharniere SC25 und SC26.The second side rod SS22 is additionally connected to the vehicle body FZK via a connecting rod VS2. This connection is also made via two hinges SC25 and SC26.
Die Verbindungstange VS2 ist durch ein Klappscharnier KS2 zweigeteilt. Dabei weist das Klappscharnier KS2 bevorzugt einen Anschlag auf, der eine mechanische Begrenzung für die Bewegung des Klappscharniers KS2 bildet und somit einen Teil einer nachfolgend beschriebenen Verriegelung darstellt.The connecting rod VS2 is divided into two parts by a folding hinge KS2. The folding hinge KS2 preferably has a stop that forms a mechanical limit for the movement of the folding hinge KS2 and thus represents part of a locking mechanism described below.
Durch Krafteinwirkung am Klappscharnier KS2 und durch die Scharniere SC21 bis SC26 ist die Trittstufe TS zwischen der ersten Position POS1 und der zweiten Position POS2 drehbar gelagert bzw. klappbar angeordnet.By applying force to the folding hinge KS2 and the hinges SC21 to SC26, the step TS is arranged so that it can rotate or fold between the first position POS1 and the second position POS2.
In der ersten Position POS1 der Trittstufe TS wird wie oben beschrieben der Aufstieg zum Führerstand FS1 des Schienenfahrzeugs SFZ unterstützt, die Stufe ist sinngemäß und mit Bezug zum Schienenfahrzeug quasi "ausgeklappt".In the first position POS1 of the step TS, the access to the driver's cab FS1 of the rail vehicle is made as described above. SFZ supports, the level is "folded out" in a meaningful way and with reference to the rail vehicle.
In der zweiten Position POS2 ist die Trittstufe TS mit Bezug auf das Schienenfahrzeug SFZ nach innen-oben weggeklappt, so dass ein vorgegebenes Lichtraumprofil des Schienenfahrzeugs SFZ einhalten wird. Das Lichtraumprofil ist so gewählt, dass mit werden Kollisionen der Trittstufe TS während der Fahrt des Schienenfahrzeugs SFZ mit gleisnahen Installationen vermieden.In the second position POS2, the TS step is folded inwards and upwards with respect to the SFZ rail vehicle, so that a specified clearance profile of the SFZ rail vehicle is maintained. The clearance profile is selected in such a way that collisions between the TS step and installations near the track are avoided when the SFZ rail vehicle is travelling.
Durch die Krafteinwirkung am Klappscharnier KS2 wird die Trittstufe TS also quer zur Längsrichtung des Schienenfahrzeugs SFZ zwischen den Positionen POS1 und POS2 über eine Drehbewegung aus- bzw. eingeklappt.Due to the force acting on the folding hinge KS2, the step TS is folded out or in transversely to the longitudinal direction of the rail vehicle SFZ between the positions POS1 and POS2 via a rotary movement.
Die Krafteinwirkung auf das Klappscharnier KS2 erfolgt über einen zweiten Zylinder ZYL2 eines Zylinderantriebs, der sowohl mit dem Klappscharnier KS2 als auch mit dem Fahrzeugkasten FZK verbunden ist. Am Fahrzeugkasten ist dazu bevorzugt ein weiteres Scharnier vorgesehen,The force acting on the folding hinge KS2 is carried out via a second cylinder ZYL2 of a cylinder drive, which is connected to both the folding hinge KS2 and the vehicle body FZK. For this purpose, an additional hinge is preferably provided on the vehicle body,
In der hier dargestellten Position POS1 (Trittstufe TS ist "ausgeklappt") ist der zweite Zylinder ZYL2 des Zylinderantriebs (beispielswiese maximal) eingefahren und die Verbindungsstange VS2 ist durchgestreckt, d.h. weist keinen Knick auf. In diesem Zustand ist der hier beschriebene Klappmechanismus unter Verwendung des Anschlags beim Klappscharnier KS2 verriegelt, so dass sich die Bezeichnung "KMAR = Klappmechanismus ausgeklappt rastend" erklärt.In the position POS1 shown here (step TS is "folded out"), the second cylinder ZYL2 of the cylinder drive is retracted (e.g. to the maximum) and the connecting rod VS2 is fully extended, i.e. has no bend. In this state, the folding mechanism described here is locked using the stop on the folding hinge KS2, which explains the designation "KMAR = folding mechanism unfolded, locking".
In der zweiten Position POS2 (Trittstufe TS ist "eingeklappt") wäre der zweite Zylinder ZYL2 ausgefahren und die Verbindungsstange VS2 würde dann einen Knick aufweisen.In the second position POS2 (step TS is "folded in") the second cylinder ZYL2 would be extended and the connecting rod VS2 would then have a kink.
Hier ist am Schienenfahrzeug SFZ eine Handstange HS angeordnet, die den sicheren Aufstieg des Betriebspersonals unterstützt. Dabei beinhaltet die Handstange HS einen integrierten Betätigungsmechanismus BL, SE, mit dem die beiden Zylinder ZYL1, ZYL2 des Zylinderantriebs gesteuert werden.Here, a handrail HS is installed on the rail vehicle SFZ to assist the operating personnel in climbing safely. The handrail HS contains an integrated actuation mechanism BL, SE, which controls the two cylinders ZYL1, ZYL2 of the cylinder drive.
Druckleitungen für die Zylinder ZYL1, ZYL2 werden über einen Schalter EN gesteuert, der integrierter Teil der Handstange HS ist.Pressure lines for the cylinders ZYL1, ZYL2 are controlled via a switch EN, which is an integrated part of the hand rod HS.
Der Schalter EN ist bevorzugt als Teil einer Betätigungsleiste ausgebildet, der in der Handstange HS integriert angeordnet ist.The switch EN is preferably designed as part of an actuating bar which is integrated in the hand rod HS.
Die Betätigungsleiste ist konstruktiv derart ausgestaltet, dass sie sowohl in einem oberen Bereich (d.h. wenn der Schienenfahrzeugfahrzeugführer den Führerstand verlässt) als auch im unteren Bereich (d.h. wenn der Schienenfahrzeugfahrzeugführer im Gleisbett steht) bedient werden kann.The operating bar is designed in such a way that it can be operated both in an upper area (i.e. when the rail vehicle driver leaves the driver's cab) and in a lower area (i.e. when the rail vehicle driver is standing on the track bed).
Bevorzugt aktiviert die Betätigungsleiste das Schaltelement SE, das beispielsweise als pneumatisches Ventil ausgestaltet ist. Die Trittstufe TS wird über die Druckleitungen in die erste Position POS1 ausgefahren, jedoch nur so lange, als der Schienenfahrzeugführer eine Hand an der Handstange HS mit Betätigungsleiste BL hat.Preferably, the actuating bar activates the switching element SE, which is designed as a pneumatic valve, for example. The step TS is extended to the first position POS1 via the pressure lines, but only as long as the rail vehicle driver has one hand on the hand bar HS with actuating bar BL.
Lässt er hingegen die Handstange HS mit Betätigungsleiste BL los, fährt die Trittstufe TS zeitverzögert ein, bis die Position POS2 erreicht wurde.If, however, he lets go of the hand bar HS with the operating bar BL, the step TS retracts with a time delay until the position POS2 is reached.
Die Zeitverzögerung ist notwendig, weil bei einem versehentlichen kurzen Loslassen der Betätigungsleiste BL die Trittstufe TS nicht sofort einfahren darf, um Unfälle zu verhindern.The time delay is necessary because if the operating bar BL is accidentally released briefly, the step TS must not retract immediately in order to prevent accidents.
Zusammengefasst weist die erfindungsgemäße Anordnung folgendes Betriebsverhalten auf:
Beim Ein- oder Aussteigen betätigt der Fahrzeugführer die Betätigungsleiste BL. Dadurch wird das Schaltelement SE aktiviert und die Druckkammer des Zylinders ZYL1 sowie die Drucckammer des Zylinders ZYL2 werden mit Druck (z.B. durch Luft oder Öl) beaufschlagt.In summary, the arrangement according to the invention has the following operating behavior:
When getting in or out, the driver operates the operating bar BL. This activates the switching element SE and the pressure chamber of the cylinder ZYL1 and the pressure chamber of the cylinder ZYL2 are pressurized (e.g. by air or oil).
Der zweite Zylinder ZYL2 fährt ein, der erste Zylinder ZYL1 fährt aus und so schieben die beiden Zylinder ZYL1, ZYL2 die Trittstufe TS in die ausgefahrene Position POS1.The second cylinder ZYL2 retracts, the first cylinder ZYL1 extends and so the two cylinders ZYL1, ZYL2 push the step TS into the extended position POS1.
Der zweite Zylinder ZYL2 fährt gegen den Anschlag des Klappscharniers KS2 und blockiert die Ausklappbewegung. Die zugehörige klappbaren Verbindungsstange VS2 ist durchgestreckt.The second cylinder ZYL2 moves against the stop of the folding hinge KS2 and blocks the unfolding movement. The associated folding connecting rod VS2 is fully extended.
Die Trittstufe TS ist mit hörbaren Zischgeräuschen ausgefahren. Der Fahrzeugführer kann die Trittstufe TS sicher besteigen.The TS step is extended with an audible hissing noise. The driver can climb onto the TS step safely.
Dabei wirkt die Trittstufe TS stabil, weil die zweite Verbindungsstange VS2 durchgestreckt ist.The step TS appears stable because the second connecting rod VS2 is fully extended.
Ist der Fahrzeugführer ein- oder ausgestiegen, lässt er die Handstange HS mit der Betätigungsleiste BL los. Die Druckseiten der Zylinder ZYL1, ZYL2 werden durch eine Drossel (nicht dargestellt) langsam entlüftet. Dadurch ist gewährleistet, dass bei einem ungewollten Loslassen der Betätigungsleiste BL die Trittstufe nicht sofort einfährt, sondern zeitverzögert.Once the driver has got in or out, he lets go of the hand bar HS with the operating bar BL. The pressure sides of the cylinders ZYL1, ZYL2 are slowly vented through a throttle (not shown). This ensures that that if the operating bar BL is accidentally released, the step does not retract immediately, but after a time delay.
Das (ggf. pneumatische) Zischgeräusch würde den Fahrzeugführer darauf aufmerksam machen, dass er die Betätigungsleiste BL nicht mehr gedrückt hält und er wird instinktiv fester mit den Händen zudrücken, um die Betätigungsleiste BL wieder ordnungsgemäß zu aktivieren.The (possibly pneumatic) hissing noise would alert the driver that he is no longer holding down the BL actuation bar and he will instinctively press harder with his hands to properly activate the BL actuation bar again.
Hat der Fahrzeugführer die Betätigungsleisten BL gewollt losgelassen, werden die Druckseiten der Zylinder ZYL1, ZYL2 langsam entlüftet und die eine Feder aufweisenden Druckseiten der Zylinder ZYL1, ZYL2 werden belüftet.If the driver has intentionally released the actuating bars BL, the pressure sides of the cylinders ZYL1, ZYL2 are slowly vented and the pressure sides of the cylinders ZYL1, ZYL2 which have a spring are ventilated.
Der erste Zylinder ZYL1 fährt langsam ein und der zweite Zylinder ZYL2 fährt langsam aus. Dadurch wird die Trittstufe TS langsam eingefahren und in die zweite Position POS2 verbracht.The first cylinder ZYL1 slowly retracts and the second cylinder ZYL2 slowly extends. This causes the step TS to slowly retract and move to the second position POS2.
Der erste Zylinder ZYL1 fährt gegen den Anschlag des Klappscharniers KS1 und fixiert die Trittstufe TS im eingefahrenen Zustand, indem die zugeordnete Verbindungsstange VS1 durchgestreckt ist.The first cylinder ZYL1 moves against the stop of the folding hinge KS1 and fixes the step TS in the retracted position by stretching the associated connecting rod VS1.
Die erfindungsgemäße Anordnung weist eine Fail-Safe Funktionalität auf. Bei Leitungsbrüchen und dem damit verbunden Druckverlust drücken die jeweiligen Federn in den Zylindern ZYL1, ZYL2 die Trittstufe TS in die Stellung der Position POS2.The arrangement according to the invention has a fail-safe functionality. In the event of line breaks and the associated pressure loss, the respective springs in the cylinders ZYL1, ZYL2 press the step TS into the position POS2.
Die Trittstufe bewegt sich hier wieder zwischen einer ersten Position POS1 (ausgeklappte Position) und einer zweiten Position POS2 (eingeklappte Position).The step moves again between a first position POS1 (unfolded position) and a second position POS2 (folded position).
Die Ausführung gemäß den Figuren
Sollte diese Parallelführung aus konstruktiven Gründen nicht möglich sein, kommt die in dieser Figur
Die Trittstufe TS ist in dieser Seitenansicht wieder über Seitenstangen SS1, SS2 und über Scharniere bzw. Lager FL1, FL2 mit dem Fahrzeugkasten FZK verbunden.In this side view, the step TS is again connected to the vehicle body FZK via side bars SS1, SS2 and via hinges or bearings FL1, FL2.
Die Bewegung wird sinngemäß und mit Blick auf die obigen Ausführungen über Zylinder (hier nicht dargestellt) durchgeführt. The movement is carried out analogously and with regard to the above explanations about cylinders (not shown here).
Claims (6)
- Rail vehicle (SFZ), which has a vehicle body (FZK), with an ascent aid,- the ascent aid having a step (TS), a first and a second folding mechanism (KMER,KMAR),- in which the first folding mechanism (KMER), as seen in the longitudinal direction of the step (TS), is fastened to the step (TS) at a first end thereof, and- in which the second folding mechanism (KMAR), as seen in the longitudinal direction of the step (TS), is fastened to the step (TS) at a second end thereof that is opposite the first end of the step (TS),- in which each folding mechanism (KMER,KMAR) has two lateral rods (SS11,SS12,SS21,SS22),- in which the lateral rods (SS11,SS12,SS21,SS22) are connected at the respective lower end via respective hinges (SC11,SC12,SC21,SC22) to the step (TS), and in which the two lateral rods (SS11,SS12,SS21,SS22) are connected at their respective upper end via respective hinges (SC13,SC14, SC23,SC24) to the vehicle body (FZK),- in which each folding mechanism (KMER,KMAR) has a connecting rod (VS1,VS2) which additionally connects one of the lateral rods (SS12,SS21) to the vehicle body (FZK) via hinges (SC15,SC16, SC25,SC26), and in which the connecting rod (VS1,VS2) is split into two parts by a folding hinge (KS1,KS2),- in which the folding hinge (KS1,KS2) is coupled to an action of force in such a manner that the action of force on the folding hinge (KS1,KS2) causes the step (TS) to be folded via the hinges (SCxy) between a first position (POS1) and a second position (POS2) with respect to the rail vehicle (SFZ), wherein, in the first position (POS1) of the step (TS), an ascent to a driver's cab (FS1,FS2) of the rail vehicle (SFZ) is assisted, and wherein, in the second position (POS2), the step (TS) is folded in such a manner that a predetermined clearance gauge of the rail vehicle (SFZ) is maintained,characterized- in that the first folding mechanism (KMER) comprises a cylinder (ZYL1) which, for the action of force, is connected at one end to the folding hinge (KS1) of the connecting rod (VS1) and at the other end to the vehicle body (FZK), in which this cylinder (ZYL1), in the first position (POS1), with the step (TS) unfolded, is extended such that the connecting rod (VS1) has a bend, and in which this cylinder (ZYL1), in the second position (POS2), with the step (TS) folded in, is retracted such that the connecting rod (VS1) is straightened in order to lock the folding mechanism (KMER) in this position (POS2),- in that the second folding mechanism (KMAR) comprises a cylinder (ZYL2) which, for the action of force, is connected at one end to the folding hinge (KS2) of the connecting rod (VS2) and at the other end to the vehicle body (FZK), in which this cylinder (ZYL2), in the first position (POS1), with the step (TS) unfolded, is retracted such that the connecting rod (VS1) is straight, in order to lock the folding mechanism (KMER) in this position (POS1), and in which this cylinder (ZYL2), in the second position (POS2), with the step (TS) folded in, is extended such that the connecting rod (VS2) has a bend,- in that, because of the action of force on the folding hinges (KS1, KS2), the step (TS) is mounted so as to be foldable in a movement plane transversely with respect to the longitudinal direction of the rail vehicle (SVZ).
- Rail vehicle (SFZ) according to Claim 1, characterized in that, in the event of a drop in pressure in the cylinders (ZYL1, ZYL2), the latter are connected and configured in such a manner that the step (TS) is rotated into the second position (POS2).
- Rail vehicle (SFZ) according to Claim 2, characterized in that the rotation into the second position (POS2) after the drop in pressure is realized with a time delay.
- Rail vehicle (SFZ) according to one of the preceding claims, characterized in that the cylinders (ZYL1, ZYL2) are part of a pneumatic or hydraulic or electric cylinder system.
- Rail vehicle (SFZ) according to one of the preceding claims, characterized- in that a hand rail (HS) is arranged on the rail vehicle (SVZ), said hand rail assisting the safe ascent of operating staff to the driver's cab (FS1, FS2), and- in that the hand rail (HS) comprises an integrated actuating mechanism (BL, EN) with which the action of force (ZYL1, ZYL2) is controlled.
- Rail vehicle (SFZ) according to one of the preceding claims, characterized in that the step (TS) is mechanically blocked both in the first position (POS1) and in the second position (POS2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102018213727.7A DE102018213727A1 (en) | 2018-08-15 | 2018-08-15 | Ascent on a rail vehicle |
PCT/EP2019/069031 WO2020035247A1 (en) | 2018-08-15 | 2019-07-15 | Ascent aid on a rail vehicle |
Publications (2)
Publication Number | Publication Date |
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EP3793878A1 EP3793878A1 (en) | 2021-03-24 |
EP3793878B1 true EP3793878B1 (en) | 2024-05-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19746026.4A Active EP3793878B1 (en) | 2018-08-15 | 2019-07-15 | Rail vehicle with an ascent aid |
Country Status (5)
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US (1) | US11753050B2 (en) |
EP (1) | EP3793878B1 (en) |
CN (1) | CN112566831B (en) |
DE (1) | DE102018213727A1 (en) |
WO (1) | WO2020035247A1 (en) |
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DE102022200380A1 (en) | 2022-01-14 | 2023-07-20 | Siemens Mobility GmbH | Tread assembly and method of operating the tread assembly |
Family Cites Families (17)
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US3371623A (en) * | 1965-10-21 | 1968-03-05 | Raymond L Therrien | Convertible rail-highway vehicle with retractable step |
DE2129223C3 (en) * | 1971-06-12 | 1979-04-12 | Linke-Hofmann-Busch Waggon-Fahrzeug-Maschinen Gmbh, 3320 Salzgitter | Multi-level entry for rail vehicles in the vehicle profile |
DE3301746A1 (en) * | 1983-01-20 | 1984-08-02 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | FOLDING STEP FOR RAIL VEHICLES |
US4623160A (en) * | 1985-09-06 | 1986-11-18 | Trudell Jerry W | Extensible step assembly for vehicles |
US4720116A (en) * | 1986-11-24 | 1988-01-19 | Williams Michael G | Storable stairway and platform apparatus for recreational vehicles |
DE4016620A1 (en) * | 1990-05-23 | 1991-11-28 | Man Ghh Schienenverkehr | MULTI-STAGE FOLDING STEP FOR TRACKED VEHICLES |
JP3241952B2 (en) * | 1994-12-06 | 2001-12-25 | 日産ディーゼル工業株式会社 | Vehicle step device |
ITTO20030080A1 (en) * | 2003-02-06 | 2004-08-07 | Fiat Auto Spa | RETRACTABLE FOOTBOARD WITH ELECTROMECHANICAL CONTROL FOR A VEHICLE. |
WO2006078195A1 (en) * | 2005-01-21 | 2006-07-27 | Volvo Lastvagnar Ab | Step for a vehicle |
US9944231B2 (en) * | 2006-10-27 | 2018-04-17 | Lund Motion Products, Inc. | Retractable vehicle step |
JP5383450B2 (en) * | 2009-11-24 | 2014-01-08 | 川崎重工業株式会社 | Railway vehicle stepping device |
DE202010000524U1 (en) * | 2009-12-07 | 2011-04-21 | Gebr. Bode Gmbh & Co. Kg | Sliding step with additional folding step |
CN202782932U (en) * | 2012-05-18 | 2013-03-13 | 镇江捷诚方舱部件有限公司 | Folding type step ladder for boarding vehicle |
DE102013017573A1 (en) * | 2013-10-24 | 2015-04-30 | Bombardier Transportation Gmbh | Rail vehicle, in particular traction vehicle |
DE102016114269B4 (en) | 2016-06-06 | 2018-05-30 | Schaltbau Refurbishment Gmbh | Pivoting step especially for rail vehicles and vehicles with such a swivel step |
CN206124902U (en) * | 2016-10-31 | 2017-04-26 | 陕西汽车实业有限公司 | Heavy van driver's cabin device of marking time of getting on bus |
CN206317748U (en) * | 2016-12-30 | 2017-07-11 | 明光浩淼安防科技股份公司 | Automatic turning step device |
-
2018
- 2018-08-15 DE DE102018213727.7A patent/DE102018213727A1/en not_active Withdrawn
-
2019
- 2019-07-15 EP EP19746026.4A patent/EP3793878B1/en active Active
- 2019-07-15 US US17/267,069 patent/US11753050B2/en active Active
- 2019-07-15 CN CN201980053610.9A patent/CN112566831B/en active Active
- 2019-07-15 WO PCT/EP2019/069031 patent/WO2020035247A1/en active Search and Examination
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DE102018213727A1 (en) | 2020-02-20 |
CN112566831A (en) | 2021-03-26 |
US11753050B2 (en) | 2023-09-12 |
EP3793878A1 (en) | 2021-03-24 |
WO2020035247A1 (en) | 2020-02-20 |
US20210309266A1 (en) | 2021-10-07 |
CN112566831B (en) | 2023-06-23 |
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