EP2243679B1 - Roller system with support function for a retractable sliding step - Google Patents

Roller system with support function for a retractable sliding step Download PDF

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Publication number
EP2243679B1
EP2243679B1 EP10160476.7A EP10160476A EP2243679B1 EP 2243679 B1 EP2243679 B1 EP 2243679B1 EP 10160476 A EP10160476 A EP 10160476A EP 2243679 B1 EP2243679 B1 EP 2243679B1
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EP
European Patent Office
Prior art keywords
aid
embarking
roller
rollers
sliding step
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EP10160476.7A
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German (de)
French (fr)
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EP2243679A3 (en
EP2243679A2 (en
Inventor
Abbas Rasekhi Coochesfahani
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Gebrueder Bode GmbH and Co KG
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Gebrueder Bode GmbH and Co KG
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Priority to PL10160476T priority Critical patent/PL2243679T3/en
Publication of EP2243679A2 publication Critical patent/EP2243679A2/en
Publication of EP2243679A3 publication Critical patent/EP2243679A3/en
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Publication of EP2243679B1 publication Critical patent/EP2243679B1/en
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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
    • B61D23/025—Folding steps for railway vehicles, e.g. hand or mechanically actuated electrically or fluid actuated

Definitions

  • the present invention relates to an extendable boarding aid of a passenger transport vehicle with a roller system, in particular a sliding step of a door entry of a passenger transport vehicle, wherein the boarding aid from a rest position in a use position and back is movable.
  • Such approach and access aids are used in vehicles for passenger transport, such as buses or rail vehicles of public transport. They are known in many forms and facilitate entry and exit in that in the area of stops on the vehicles displaced and often also pivotally mounted and resilient sliding steps are extended. Sliding steps are used to bridge gaps (for example on platforms) or for height compensation.
  • Approach aids can be designed as only extendable sliding steps, but they can be lowered in the extended state on the ground, for example, the platform so that they rest with. Boarding aids facilitate or enable wheelchair users to access the vehicles. After completion of the training and entry phase and possibly after closing the vehicle doors the boarding aid is returned to its rest position.
  • a motor is provided in the case of externally operated boarding aids, which moves the sliding step out of its rest position into the position of use and back again.
  • Walk-in sliding steps are led laterally over rollers in guide means, over which they can be linearly extended and retracted.
  • Motorized sliding steps are for example in the publications DE 20 2007 000 912 U1 and DE 20 2006 016 432 U1 described. These all build relatively high, which is increasingly undesirable. Due to constantly increasing requirements, vehicle manufacturers pay particular attention to approach aids, in particular to the installation space required for them in the critical entrance area. The installation depth and installation height depend on the extension path, load path of the load itself and the dimensions of the guide and roller system.
  • the object of the present invention is to provide a system for a boarding aid, in particular a sliding step, which allows a compact and space-saving construction of the boarding aid. Furthermore, the o.g. Disadvantages of the prior art can be avoided.
  • the roller system according to the invention is suitable for all roll-guided boarding aids, but especially for sliding steps. Sliding steps therefore, because they do not rest on the ground, must be so stably constructed that several people can enter the sliding door at the same time, without this giving way down the dimensions or taking damage. Accordingly, in particular, the walk-in plate of the sliding step, the guide means and the rollers running therein are designed according to material selection and dimensioning. In particular, the rollers must be able to withstand the load occurring.
  • roller module according to the invention causes the stress otherwise acting on a roller is significantly reduced.
  • the invention is i.a. the recognition that it is advantageous to separate the functions of the roles of boarding aids, namely the guiding and moving the boarding aid, carrying the dead load of boarding and wearing or holding the total load when using the boarding.
  • the weight of the boarding aid is many times less than the burden that acts on the rollers when using the boarding aid. According to the invention, therefore, the rollers are used for the movement and the carrying of the dead load and not to carry the operating load, for example by entering the boarding aid.
  • rollers or their axes are not positioned stationary to boarding, but with respect to the boarding aid, so are arranged relatively movable.
  • the boarding aid lowers by the mobility of the rollers until it is supported independently of the rollers on a stationary component of the passenger transport vehicle. In this state, the vertically acting from above loading force is no longer worn or held on the rollers, but passed over the support in the rigid component of the vehicle.
  • the operating load is So regardless of the carrying capacity of the rollers worn.
  • a rigid component can serve, for example, guide means in which the rollers are guided.
  • any construction that is capable of allowing relative movement of the roll to boarding is suitable.
  • this can be achieved by pivoting the roller relative to the boarding aid when the roller is mounted on a pivotable intermediate element.
  • the intermediate element is attached, for example via a torsion spring to the boarding aid, which allows a method of boarding without lowering it. Only when the force of the torsion spring is exceeded, the boarding aid lowers.
  • the spring force is also sufficiently large to allow a method of boarding without distracting the same.
  • the spring force is overcome and the boarding aid can lower relative to the movable roller.
  • a spring and a plastic or elastomer or other elastic elements may be used as a functional element that allows lowering of the approach aid from a certain load.
  • the support of the boarding aid can take place at any suitable position.
  • the boarding aid touches on a stationary component of the passenger vehicle with a corresponding load.
  • a cross member which does not touch the boarding when entering and exiting, but with which it comes in contact with appropriate load.
  • the boarding aid is supported via suitable components directly on the guide means for the rollers.
  • the boarding aid may comprise a component which projects into the guide means, preferably a guide rail, but is not in contact therewith. Only when the boarding aid is lowered, sets the rigid component with the projecting into the guide rail area the guide means and supports the boarding aid accordingly.
  • the roller system can be combined with a load sensing. This is advisable because, by lowering the boarding aid and the subsequent placement on a support element, a contact point which can be used for a sensing is created. Should the approach aid be moved further on the support element after placement, an increased friction results, which can be measured without additional components via the motor current of the drive motor. It is also conceivable a switching element in the region of the support, which is switched under load. Depending on the time or position of the boarding aid, the signal may cause a further extension of the Ausschubs to prevent this retract or trigger an alarm.
  • the approach aid according to the invention with roller system leads to a significantly lower installation height for the guidance area of the boarding aid. It can easily be realized heights of only 35 mm, which means a significant reduction in the height compared to usual boarding aids.
  • the resilience of the roller system is not dependent on the load capacity of the rollers themselves, but arises from the supportability of the corresponding support components.
  • the system components are subjected to less stress, which indirectly leads to a cost reduction over the life of the boarding aid.
  • Optional functions, such as the load sensing of the tread can be realized with a simple mechanism.
  • the boarding aid per guide means has at least one roller module with a roller plate which is mounted pivotably about a pivot axis on the side of the sliding step and in the at least two guided in the respective guide means module rollers rotatably mounted are.
  • the roller plate is pivotally mounted on the side entry aid and thus has a kind of rocker function.
  • two module rollers are provided, which are arranged equally spaced right and left of the pivot axis of the roller plate.
  • the roller module has not two, but three or more module rollers.
  • the rollers can be arranged distributed uniformly along the roller plate, so that they each remove the same load, but it is also conceivable a distribution in which individual roles are more or less burdened than others. This can for example be achieved in that the rollers have different distances to the pivot axis or right and left of the pivot axis a different number of module rollers is arranged.
  • the approach aid according to the invention with roller system allows a reduction in the height of the boarding aid in particular in that the module rollers must have a significantly smaller diameter than the usual roles. This results from the distribution of the load over several module rolls. Accordingly, the sliding step or the tread plate can be guided over very low-mounted guide means, whereby the overall height of the boarding aid is considerably reduced.
  • the roller module can replace a roller which is movable relative to the boarding aid and thereby make it possible to lower the boarding aid itself. It is also conceivable, however, a combination of relatively movable rollers according to the invention with a pivotable in the vertical direction roller module.
  • the drive of the Schiebetritts can be designed differently, for example by lateral spindles, which also take over the function of the guide in addition to the drive, or by a central drive, which requires additional (eg lateral) guide means. Further drive options are also available feasible, but this is not discussed in the context of this patent application.
  • FIG. 1 shows the essential components of a Schiebetrittausfahrvorraum 20 with an extended sliding step 22.
  • the Schiebetrittausfahrvorraum 20 works in principle like a drawer, the sliding step 22 is through an opening of the housing 24 in this or moved out of this.
  • the side parts of the housing 24 which extend in the one-out direction are designed as guide means 26 in which rollers 28 arranged laterally on the sliding step 22 are guided.
  • two rollers 28 are provided on each side, which are acted upon by a load of the sliding step 22 with a corresponding resultant force, wherein the front in the extension direction roller 28 is about twice as much as the rear roller 28 is charged.
  • the sliding step 22 has a plate which is arranged between two parallel to the guide means 26 extending side cheeks 32.
  • the side cheeks 32 act as a kind of retaining arms.
  • the side cheeks 32 and retaining arms are connected to each other via an additional cross brace 34.
  • a drive 36 is shown in the rearward in the extension / extension direction of the Schiebetrittausfahrvortechnisch 20.
  • FIGS. 4 and 5 show a first embodiment of the roller system according to the invention. It can be seen that the roller 28 is mounted on an intermediate element 38. These are rear rollers that behave inversely to front rollers of the sliding step 22.
  • the roller 28 runs in the guide means 26, the intermediate element 38 is fixed to a side wall 32 of the sliding step 22.
  • the intermediate element 38 is pivotably mounted via a pivot bearing 40, wherein a spring element, preferably a torsion spring, is provided inside the pivot bearing 40.
  • FIG. 4 shows the position of the intermediate element with loaded sliding step 22, FIG. 5 the position with lowered and unloaded sliding step 22.
  • the roller system is in the FIGS. 4 and 5 shown cut, so guide means 26 and other components are not visible.
  • the force of the spring element in the pivot bearing 40 is selected such that the sliding step 22 only at additional load, the Dead weight of the sliding step 22 exceeds, lowers. It is not apparent how the sliding step 22 is supported on a stationary component of the vehicle.
  • FIGS. 6 and 7 show a further embodiment of a roller system according to the invention in a highly simplified schematic diagram.
  • the roller 28 is mounted on its roller axis 42 on the sliding step 22.
  • the roller 28 is movable in the vertical direction, wherein a spring element 44 is provided, which the roller 28 according to FIG. 6 holds in its initial position.
  • the roller 28 is guided in the running as a rail guide means 26 and can be moved in this.
  • FIG. 7 shows that the sliding step 22 can then be supported on the guide means 26 when the sliding step 22 is sufficiently loaded (loading force F b ), and the spring force of the spring element 44 overcoming.
  • the sliding step 22 can also be supported on other components of the vehicle.
  • Fig. 7 shows the front roller, the rear roller has a reverse construction.
  • FIGS. 8 and 9 illustrate the balance of power, which act on the boarding aid in the unloaded and loaded condition.
  • the rollers 28 When retracted position and when extending the sliding step 22, the rollers 28 are loaded with dead weight Fg.
  • the spring force F f acts in the pivot bearing 40. In the unloaded state, no contact force F a .
  • FIG. 9 shows the Schiebetrittausfahrvorraum 20 in the extended state and under load. It turns out that in this state, the contact force F a at two points (F a 1 and F a 2) acts as a resultant force to the loading force F b . The spring force F f has been overcome and the Schiebetritt has lowered.
  • FIG. 10 shows a further advantageous improvement over the prior art.
  • the roller 28 at the front in the sliding step extension device 20 has been replaced by a roller module 46 according to the invention.
  • the structure and function of the roller module 46 result in particular from the FIGS. 4 and 5 ,
  • the roller module 46 has in the illustrated embodiment, two rollers (in the following module rollers 48) which are rotatably mounted in a roller plate 50 and are guided in each case in the guide means 26.
  • the roller plate 50 itself is in turn rotatably or pivotally mounted about a pivot axis X-X laterally on the sliding step 22.
  • the otherwise acting on the only one front roller 28 vertical force is evenly distributed on two module rollers 48, which is just in the front in one-extension direction roller bearing due to the higher load there advantage.
  • the uniform loading of the module rollers 48 results from the fact that they each have the same distance to the pivot axis X-X.
  • roller system is suitable for all extendable boarding aids
  • the use of a sliding step 22 is certainly regarded as a preferred embodiment variant is due to its significantly lower load distribution.
  • the invention is not limited to the embodiment shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Types And Forms Of Lifts (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Description

Die vorliegende Erfindung betrifft eine ausfahrbare Zustiegshilfe eines Personenbeförderungsfahrzeuges mit einem Rollensystem, insbesondere einen Schiebetritt eines Türeinstiegs eines Personenbeförderungsfahrzeuges, wobei die Zustiegshilfe aus einer Ruhestellung in eine Gebrauchsstellung und zurück verfahrbar ist.The present invention relates to an extendable boarding aid of a passenger transport vehicle with a roller system, in particular a sliding step of a door entry of a passenger transport vehicle, wherein the boarding aid from a rest position in a use position and back is movable.

Derartige Zustiegs- und Zufahrtshilfen werden bei Fahrzeugen zur Personenbeförderung, beispielsweise bei Bussen oder Schienenfahrzeugen des öffentlichen Nahverkehrs eingesetzt. Sie sind in vielfältiger Form bekannt und erleichtern den Ein- und Ausstieg dadurch, dass im Bereich von Haltestellen an den Fahrzeugen verschiebbar und oftmals auch verschwenkbar gelagerte und belastbare Schiebetritte ausgefahren werden. Schiebetritte werden dabei zur Überbrückung von Spalten (beispielsweise bei Bahnsteigen) oder auch zum Höhenausgleich eingesetzt. Zustiegshilfen können als lediglich ausfahrbare Schiebetritte ausgeführt sein, sie können aber im ausgefahrenen Zustand auch auf den Untergrund, beispielsweise dem Bahnsteig abgesenkt werden, so dass sie mit aufliegen. Zustiegshilfen erleichtern oder ermöglichen Rollstuhlfahrern den Zugang in die Fahrzeuge. Nach Beendigung der Aus- und Einstiegsphase und eventuell nach dem Schließen der Fahrzeugtüren wird die Zustiegshilfe wieder in ihre Ruhestellung zurückgebracht.Such approach and access aids are used in vehicles for passenger transport, such as buses or rail vehicles of public transport. They are known in many forms and facilitate entry and exit in that in the area of stops on the vehicles displaced and often also pivotally mounted and resilient sliding steps are extended. Sliding steps are used to bridge gaps (for example on platforms) or for height compensation. Approach aids can be designed as only extendable sliding steps, but they can be lowered in the extended state on the ground, for example, the platform so that they rest with. Boarding aids facilitate or enable wheelchair users to access the vehicles. After completion of the training and entry phase and possibly after closing the vehicle doors the boarding aid is returned to its rest position.

Zustiegshilfen, die im ausgefahrenen Zustand nicht aufliegen und entsprechend belastbar sein müssen, werden in der Regel als Schiebetritte bezeichnet. Diese bestehen in der Regel aus einem widerstandsfähigen und starren, aber möglichst leichten Material und sind in der Regel mit einer rutschhemmenden Auflage versehen.Approach aids, which do not rest in the extended state and must be able to be loaded accordingly, are generally referred to as sliding steps. These are usually made of a resistant and rigid, but as lightweight as possible material and are usually provided with a slip-resistant pad.

Im Bereich des Schiebetritts ist bei fremdbetriebenen Zustiegshilfen ein Motor vorgesehen, der den Schiebetritt aus seiner Ruhestellung in die Gebrauchsstellung heraus- und wieder zurückfährt. Begehbare Schiebetritte sind seitlich über Rollen in Führungsmitteln geführt, über die sie linear ein- und ausgefahren werden können. Motorisch betriebene Schiebetritte sind beispielsweise in den Druckschriften DE 20 2007 000 912 U1 und DE 20 2006 016 432 U1 beschrieben. Diese bauen alle verhältnismäßig hoch, was zunehmend unerwünscht ist. Fahrzeughersteller richten aufgrund ständig wachsender Anforderungen besondere Aufmerksamkeit auf Zustiegshilfen, insbesondere auf den für diesen notwendigen Einbauraum im kritischen Eingangsbereich. Die Einbautiefe und Einbauhöhe ist vom Ausfahrweg, Belastungsweg der Belastung selbst und den Dimensionen vom Führungs- und Rollensystem abhängig.In the area of the sliding step, a motor is provided in the case of externally operated boarding aids, which moves the sliding step out of its rest position into the position of use and back again. Walk-in sliding steps are led laterally over rollers in guide means, over which they can be linearly extended and retracted. Motorized sliding steps are for example in the publications DE 20 2007 000 912 U1 and DE 20 2006 016 432 U1 described. These all build relatively high, which is increasingly undesirable. Due to constantly increasing requirements, vehicle manufacturers pay particular attention to approach aids, in particular to the installation space required for them in the critical entrance area. The installation depth and installation height depend on the extension path, load path of the load itself and the dimensions of the guide and roller system.

Nachteilig ist auch, dass die Rollen über die Nutzungsdauer der Zustiegshilfe stark verschleißen, wenn sie nicht ausgesprochen robust und widerstandsfähig ausgelegt sind.Another disadvantage is that the roles wear over the useful life of the boarding aid strong, if they are not designed extremely robust and resistant.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein System für eine Zustiegshilfe, insbesondere einen Schiebetritt zu schaffen, das einen kompakten und Platz sparenden Aufbau der Zustiegshilfe ermöglicht. Weiterhin sollen die o.g. Nachteile des Standes der Technik vermieden werden.The object of the present invention is to provide a system for a boarding aid, in particular a sliding step, which allows a compact and space-saving construction of the boarding aid. Furthermore, the o.g. Disadvantages of the prior art can be avoided.

Erfindungsgemäß wird die Aufgabe gemäß Anspruch 1 durch eine ausfahrbare Zustiegshilfe eines Türeinstiegs eines Personenbeförderungsfahrzeuges mit einem Rollensystem gelöst, wobei

  • die Zustiegshilfe aus einer Ruhestellung in eine Gebrauchsstellung und zurück verfahrbar ist,
  • Führungsmittel vorgesehen sind, die jeweils seitlich der Zustiegshilfe in Ein-/Ausfahrrichtung verlaufen und
  • die Zustiegshilfe über Rollen in den Führungsmitteln geführt ist,
und dadurch gekennzeichnet ist, dass
zumindest die Achse eine der Rollen gegenüber der Zustiegshilfe vertikal bewegbar ist, wodurch die Zustiegshilfe gegenüber dem Führungsmittel der bewegbaren Rolle in vertikaler Richtung derart bewegbar ist, dass sich die Zustiegshilfe bei vertikaler Belastung von oben unabhängig von den Rollen auf mindestens einem stationären Bauteil des Personenbeförderungsfahrzeugs abstützten kann, so dass die vertikale Belastung nicht über die Rollen gehalten, sondern über die Abstützung in dieses stationäre Bauteil des Personenbeförderungsfahrzeugs geleitet wird.According to the invention the object is achieved according to claim 1 by an extendable boarding aid door opening a passenger transport vehicle with a roller system, wherein
  • the boarding aid is moved from a rest position into a use position and back,
  • Guide means are provided, each extending laterally of the boarding in the extension / retraction and
  • the boarding aid is guided by roles in the management tools,
and characterized in that
at least the axis of one of the rollers relative to the boarding aid is vertically movable, whereby the boarding aid relative to the guide means of the movable roller in the vertical direction is movable so that the boarding aid under vertical load from above independently of the rollers on at least one stationary component of the passenger vehicle supported can, so that the vertical load is not held over the rollers, but is passed over the support in this stationary component of the passenger transport vehicle.

Das erfindungsgemäße Rollensystem eignet sich für sämtliche rollengeführten Zustiegshilfen, insbesondere aber für Schiebtritte. Schiebetritte müssen deshalb, weil sie nicht auf dem Untergrund aufliegen, derart stabil konstruiert sein, dass mehrere Personen gleichzeitig den Schiebetritt betreten können, ohne dass dieser über die Maßen nach unten nachgibt oder Schaden nimmt. Dementsprechend sind insbesondere die begehbare Platte des Schiebetritts, die Führungsmittel und die darin laufenden Rollen durch Materialauswahl und Dimensionierung entsprechend ausgeführt. Insbesondere müssen die Rollen in der Lage sein, der auftretenden Belastung Stand zu halten.The roller system according to the invention is suitable for all roll-guided boarding aids, but especially for sliding steps. Sliding steps therefore, because they do not rest on the ground, must be so stably constructed that several people can enter the sliding door at the same time, without this giving way down the dimensions or taking damage. Accordingly, in particular, the walk-in plate of the sliding step, the guide means and the rollers running therein are designed according to material selection and dimensioning. In particular, the rollers must be able to withstand the load occurring.

Hier setzt die Erfindung an, nämlich durch Abkehr vom üblichen und weit verbreiteten Rollensystem. Das erfindungsgemäße Rollenmodul bewirkt, dass die sonst auf eine Rolle wirkende Belastung deutlich reduziert wird.This is where the invention comes in, namely by turning away from the usual and widespread role system. The roller module according to the invention causes the stress otherwise acting on a roller is significantly reduced.

Der Erfindung liegt u.a. die Erkenntnis zugrunde, dass es vorteilhaft ist, die Funktionen der Rollen der Zustiegshilfen, nämlich das Führen und Bewegen der Zustiegshilfe, das Tragen der Eigenlast der Zustiegshilfe und das Tragen bzw. Halten der Gesamtlast bei Benutzung der Zustiegshilfe, zu trennen. Das Eigengewicht der Zustiegshilfe ist um ein Vielfaches geringer als die Belastung, die bei Benutzung der Zustiegshilfe auf die Rollen wirkt. Erfindungsgemäß werden deshalb die Rollen für die Bewegung und das Tragen der Eigenlast eingesetzt und nicht zum Tragen der Betriebslast beispielsweise durch Betreten der Zustiegshilfe.The invention is i.a. the recognition that it is advantageous to separate the functions of the roles of boarding aids, namely the guiding and moving the boarding aid, carrying the dead load of boarding and wearing or holding the total load when using the boarding. The weight of the boarding aid is many times less than the burden that acts on the rollers when using the boarding aid. According to the invention, therefore, the rollers are used for the movement and the carrying of the dead load and not to carry the operating load, for example by entering the boarding aid.

Dies wird dadurch erreicht, dass die Rollen bzw. deren Achsen nicht ortsfest zur Zustiegshilfe positioniert, sondern gegenüber der Zustiegshilfe, also relativ bewegbar angeordnet sind. Dies kann dadurch erreicht werden, dass die Rollen schwenkbar oder gelenkig ausgeführt sind, denkbar ist aber auch eine Bewegbarkeit in vertikaler Richtung gegen eine Federkraft. Beim Überschreiten einer gewissen Belastung, die höher als die Eigenlast der Zustiegshilfe ist, senkt sich die Zustiegshilfe durch die Bewegbarkeit der Rollen ab, bis sie sich unabhängig von den Rollen auf einem stationären Bauteil des Personenbeförderungsfahrzeugs abstützt. In diesem Zustand wird die vertikal von oben wirkende Belastungskraft nicht mehr über die Rollen abgetragen oder gehalten, sondern über die Abstützung in das starre Bauteil des Fahrzeugs geleitet. Die Betriebslast wird also unabhängig von der Tragfähigkeit der Rollen getragen. Als starres Bauteil können zum Beispiel Führungsmittel dienen, in denen die Rollen geführt werden.This is achieved in that the rollers or their axes are not positioned stationary to boarding, but with respect to the boarding aid, so are arranged relatively movable. This can be achieved in that the rollers are pivotable or articulated, but it is also conceivable mobility in the vertical direction against a spring force. When exceeding a certain load, which is higher than the dead weight of the boarding aid, the boarding aid lowers by the mobility of the rollers until it is supported independently of the rollers on a stationary component of the passenger transport vehicle. In this state, the vertically acting from above loading force is no longer worn or held on the rollers, but passed over the support in the rigid component of the vehicle. The operating load is So regardless of the carrying capacity of the rollers worn. As a rigid component can serve, for example, guide means in which the rollers are guided.

Je nach Ausführung der Zustiegshilfe kann es ausreichen, dass nur eine einzige Rolle relativ bewegbar ausgeführt ist. Üblicherweise sind auf jeder Seite einer Zustiegshilfe aber zwei in Ausfahrrichtung hintereinander angeordnete Rollen vorgesehen, von denen vorteilhafterweise zumindest die in Ausfahrrichtung vorderen Rollen relativ bewegbar ausgeführt sind. Je nach Dimension und Ausführung der Zustiegshilfe kann es aber auch sinnvoll sein, wenn alle Rollen in vertikaler Richtung relativ zur Zustiegshilfe bewegbar sind.Depending on the version of the boarding aid, it may be sufficient that only a single role is carried out relatively movable. Usually, however, two rollers arranged one after the other in the extension direction are provided on each side of an approach aid, of which advantageously at least the rollers which are in the extension direction are designed to be relatively movable. Depending on the dimension and design of the approach aid, it may also be useful if all roles are movable in the vertical direction relative to the boarding aid.

Letztendlich eignet sich jede Konstruktion, die geeignet ist, eine relative Bewegung der Rolle zur Zustiegshilfe zu ermöglichen. Wie bereits ausgeführt kann dies durch Verschwenken der Rolle gegenüber der Zustiegshilfe erreicht werden, wenn die Rolle an einem verschwenkbaren Zwischenelement gelagert ist. Das Zwischenelement ist beispielsweise über eine Drehfeder an der Zustiegshilfe befestigt, die ein Verfahren der Zustiegshilfe ohne Absenken derselben ermöglicht. Erst wenn die Kraft der Drehfeder überschritten wird, senkt sich die Zustiegshilfe ab. In einer besonders vorteilhaften Variante ist es aber auch möglich, die Rolle bzw. deren Achse unmittelbar an der Zustiegshilfe zu lagern, wobei die Achse durch eine Federkraft beaufschlagt ist. Die Federkraft ist ebenfalls ausreichend groß, um ein Verfahren der Zustiegshilfe ohne Ablenken derselben zu ermöglichen. Erst wenn die Zustiegshilfe belastet wird, wird die Federkraft überwunden und die Zustiegshilfe kann sich gegenüber der bewegbaren Rolle absenken. Anstelle einer Feder kann auch ein Kunststoff oder Elastomer oder andere elastische Elemente als Funktionselement eingesetzt werden, dass ein Absenken der Zustiegshilfe ab einer gewissen Belastung zulässt.Ultimately, any construction that is capable of allowing relative movement of the roll to boarding is suitable. As already stated, this can be achieved by pivoting the roller relative to the boarding aid when the roller is mounted on a pivotable intermediate element. The intermediate element is attached, for example via a torsion spring to the boarding aid, which allows a method of boarding without lowering it. Only when the force of the torsion spring is exceeded, the boarding aid lowers. In a particularly advantageous variant, it is also possible to store the roller or its axis directly on the boarding aid, wherein the axis is acted upon by a spring force. The spring force is also sufficiently large to allow a method of boarding without distracting the same. Only when the boarding aid is loaded, the spring force is overcome and the boarding aid can lower relative to the movable roller. Instead of a spring and a plastic or elastomer or other elastic elements may be used as a functional element that allows lowering of the approach aid from a certain load.

Die Abstützung der Zustiegshilfe kann an jeder beliebig geeigneten Position erfolgen. Hierzu kann vorgesehen sein, dass die Zustiegshilfe auf einem stationären Bauteil des Personenfahrzeugs bei entsprechender Belastung aufsetzt. Beispielsweise kann unterhalb der Zustiegshilfe ein Querträger vorgesehen sein, den die Zustiegshilfe beim Ein- und Ausfahren nicht berührt, mit dem sie aber bei entsprechender Belastung im Kontakt kommt.The support of the boarding aid can take place at any suitable position. For this purpose, it may be provided that the boarding aid touches on a stationary component of the passenger vehicle with a corresponding load. For example, may be provided below the boarding a cross member, which does not touch the boarding when entering and exiting, but with which it comes in contact with appropriate load.

Bei einer besonders vorteilhaften Ausführungsvariante stützt sich die Zustiegshilfe über geeignete Bauteile direkt an den Führungsmitteln für die Rollen ab. Hierzu kann die Zustiegshilfe ein Bauteil aufweisen, das in das Führungsmittel, vorzugsweise eine Führungsschiene, hineinragt, aber nicht mit diesem in Kontakt steht. Erst wenn die Zustiegshilfe abgesenkt wird, setzt das starre Bauteil mit dem in die Führungsschiene hineinragende Bereich dem Führungsmittel auf und stützt die Zustiegshilfe entsprechend ab.In a particularly advantageous embodiment variant, the boarding aid is supported via suitable components directly on the guide means for the rollers. For this purpose, the boarding aid may comprise a component which projects into the guide means, preferably a guide rail, but is not in contact therewith. Only when the boarding aid is lowered, sets the rigid component with the projecting into the guide rail area the guide means and supports the boarding aid accordingly.

In einer besonders vorteilhaften Ausführungsvariante kann das Rollensystem mit einer Belastungssensierung kombiniert werden. Dies bietet sich deshalb an, weil durch das Absenken der Zustiegshilfe und das darauf folgende Aufsetzen auf einem Abstützelement ein für eine Sensierung nutzbarer Kontaktpunkt geschaffen wird. Sollte die Zustiegshilfe nach dem Aufsetzen auf dem Abstützelement weiter verfahren werden, ergibt sich eine erhöhte Reibung die ohne zusätzliche Bauteile über den Motorstrom des Antriebsmotors gemessen werden kann. Denkbar ist auch ein Schaltelement im Bereich der Abstützung, das bei Belastung geschaltet wird. Je nach Zeitpunkt oder Position der Zustiegshilfe kann das Signal dazu führen, ein weiteres Ausfahren des Ausschubs zu verhindern diesen wieder einzufahren oder Alarm auszulösen.In a particularly advantageous embodiment, the roller system can be combined with a load sensing. This is advisable because, by lowering the boarding aid and the subsequent placement on a support element, a contact point which can be used for a sensing is created. Should the approach aid be moved further on the support element after placement, an increased friction results, which can be measured without additional components via the motor current of the drive motor. It is also conceivable a switching element in the region of the support, which is switched under load. Depending on the time or position of the boarding aid, the signal may cause a further extension of the Ausschubs to prevent this retract or trigger an alarm.

Die erfindungsgemäße Zustiegshilfe mit Rollensystem führt zu einer deutlich niedrigeren Einbauhöhe für den Führungsbereich der Zustiegshilfe. Es können problemlos Höhen von nur 35 mm realisiert werden, was eine deutliche Verringerung der Bauhöhe gegenüber bisher üblichen Zustiegshilfen bedeutet. Die Belastbarkeit des Rollensystems ist nicht von der Belastbarkeit der Rollen selbst abhängig, sondern ergibt sich aus der Abstützfähigkeit der entsprechenden Abstützbauteile. Die Systemkomponenten werden geringer beansprucht, was indirekt zu einer Kostenreduzierung über die Lebensdauer der Zustiegshilfe führt. Optionale Funktionen, wie die Belastungssensierung der Trittfläche, können bei einfachem Mechanismus realisiert werden.The approach aid according to the invention with roller system leads to a significantly lower installation height for the guidance area of the boarding aid. It can easily be realized heights of only 35 mm, which means a significant reduction in the height compared to usual boarding aids. The resilience of the roller system is not dependent on the load capacity of the rollers themselves, but arises from the supportability of the corresponding support components. The system components are subjected to less stress, which indirectly leads to a cost reduction over the life of the boarding aid. Optional functions, such as the load sensing of the tread, can be realized with a simple mechanism.

Eine weitere Reduzierung der Einbauhöhe und Erhöhung der Zuverlässigkeit kann dadurch erreicht werden, dass die Zustiegshilfe je Führungsmittel zumindest ein Rollenmodul mit einer Rollenplatte aufweist, die um eine Schwenkachse schwenkbar an der Seite des Schiebetritts gelagert ist und in den mindestens zwei in dem jeweiligen Führungsmittel geführte Modulrollen drehbar gelagert sind. Die Rollenplatte ist schwenkbar an der Seite Zustiegshilfe gelagert und hat dadurch eine Art Wippenfunktion. In einer besonders vorteilhaften Ausführungsvariante sind zwei Modulrollen vorgesehen, die gleichmäßig beabstandet rechts und links der Schwenkachse der Rollenplatte angeordnet sind. Somit wird die Belastung durch eine von oben wirkende Vertikalkraft über die Platte des Schiebetritts auf das Lager der Rollenplatte und schließlich auf die beiden Rollen selbst übertragen. Bei einem derartigen Rollenmodul halbiert sich die auf die einzelne Modulrollen wirkende Kraft gegenüber der Verwendung nur einer einzigen Rolle.A further reduction in installation height and increased reliability can be achieved in that the boarding aid per guide means has at least one roller module with a roller plate which is mounted pivotably about a pivot axis on the side of the sliding step and in the at least two guided in the respective guide means module rollers rotatably mounted are. The roller plate is pivotally mounted on the side entry aid and thus has a kind of rocker function. In a particularly advantageous embodiment, two module rollers are provided, which are arranged equally spaced right and left of the pivot axis of the roller plate. Thus, the load is transferred by a vertical force acting from above over the plate of the sliding step on the bearing of the roller plate and finally on the two rollers themselves. With such a roller module, the force acting on the individual module rollers is halved compared with the use of only a single roller.

Erfindungsgemäß kann vorgesehen sein, dass das Rollenmodul nicht zwei, sondern drei oder mehrere Modulrollen aufweist. Zum einen können die Rollen gleichmäßig entlang der Rollenplatte verteilt angeordnet sein, so dass sie jeweils die gleiche Last abtragen, denkbar ist aber auch eine Verteilung, bei der einzelne Rollen mehr oder weniger als andere belastet werden. Dies kann beispielsweise dadurch erreicht werden, dass die Rollen unterschiedliche Abstände zur Schwenkachse aufweisen oder rechts und links der Schwenkachse eine unterschiedliche Anzahl an Modulrollen angeordnet ist.According to the invention, it can be provided that the roller module has not two, but three or more module rollers. On the one hand, the rollers can be arranged distributed uniformly along the roller plate, so that they each remove the same load, but it is also conceivable a distribution in which individual roles are more or less burdened than others. This can for example be achieved in that the rollers have different distances to the pivot axis or right and left of the pivot axis a different number of module rollers is arranged.

Die erfindungsgemäße Zustiegshilfe mit Rollensystem erlaubt eine Reduzierung der Höhe der Zustiegshilfe insbesondere dadurch, dass die Modulrollen einen deutlich geringeren Durchmesser als die sonst üblichen Rollen aufweisen müssen. Dies ergibt sich durch die Verteilung der Belastung auf mehrere Modulrollen. Entsprechend kann der Schiebetritt oder die Trittplatte über sehr niedrig bauende Führungsmittel geführt werden, wodurch die Gesamthöhe der Zustiegshilfe erheblich reduziert wird.The approach aid according to the invention with roller system allows a reduction in the height of the boarding aid in particular in that the module rollers must have a significantly smaller diameter than the usual roles. This results from the distribution of the load over several module rolls. Accordingly, the sliding step or the tread plate can be guided over very low-mounted guide means, whereby the overall height of the boarding aid is considerably reduced.

Erfindungsgemäß kann das Rollenmodul eine relativ zur Zustiegshilfe bewegbare Rolle ersetzen und dadurch selbst das Absenken der Zustiegshilfe ermöglichen. Denkbar ist aber auch eine Kombination von relativ bewegbaren Rollen im Sinne der Erfindung mit einem in Vertikalrichtung schwenkbaren Rollenmodul.According to the invention, the roller module can replace a roller which is movable relative to the boarding aid and thereby make it possible to lower the boarding aid itself. It is also conceivable, however, a combination of relatively movable rollers according to the invention with a pivotable in the vertical direction roller module.

Der Antrieb des Schiebetritts kann verschieden ausgeführt sein, z.B. durch seitliche Spindeln, welche neben dem Antrieb ebenfalls die Funktion der Führung übernehmen, oder auch durch einen zentralen Antrieb, welcher zusätzliche (z.B. seitliche) Führungsmittel erfordert. Weitere Antriebsmöglichkeiten sind ebenfalls realisierbar, auf diese wird jedoch im Rahmen dieser Patentanmeldung nicht eingegangen.The drive of the Schiebetritts can be designed differently, for example by lateral spindles, which also take over the function of the guide in addition to the drive, or by a central drive, which requires additional (eg lateral) guide means. Further drive options are also available feasible, but this is not discussed in the context of this patent application.

Anhand der nachfolgenden Figuren wird die Erfindung näher erläutert. Diese sind nur beispielhaft zu verstehen und sollen den Umfang der Erfindung nicht beschränken. Es zeigen:

Figur 1:
Bereich einer Schiebetrittausfahrvorrichtung mit einem Rollensystem nach dem Stand der Technik in perspektivischer Darstellung, mit ausgefahrenem Schiebetritt,
Figur 2:
Bereich einer Schiebetrittausfahrvorrichtung mit einem erfindungsgemäßen Rollensystem in perspektivischer Darstellung, mit ausgefahrenem Schiebetritt,
Figur 3:
eine vergrößerte Darstellung einer ersten Ausführungsform der erfindungsgemäßen bewegbaren Rolle aus Figur 2,
Figur 4:
die relativ bewegbare Rolle aus Figur 3 in Seitenansicht, Rolle unbelastet, Schiebetritt belastet
Figur 5:
die relativ bewegbare Rolle aus Figur 3 in Seitenansicht, Rolle belastet, Schiebetritt unbelastet
Figur 6:
eine Prinzipdarstellung einer zweiten Ausführungsvariante einer relativ bewegbaren Rolle im Schnitt, Schiebetritt unbelastet,
Figur 7:
die relativ bewegbare Rolle aus Figur 6 im Schnitt, Schiebetritt belastet,
Figur 8:
die erfindungsgemäße Schiebetrittausfahrvorrichtung im Schnitt, unbelastet,
Figur 9:
die erfindungsgemäße Schiebetrittausfahrvorrichtung im Schnitt, belastet,
Figur 10:
eine perspektivische Darstellung eines erfindungsgemäßen Rollenmoduls.
Based on the following figures, the invention will be explained in more detail. These are only to be understood as examples and are not intended to limit the scope of the invention. Show it:
FIG. 1:
Area of a Schiebetrittausfahrvorrichtung with a roller system according to the prior art in perspective, with extended Schiebetritt,
FIG. 2:
Area of a Schiebetrittausfahrvorrichtung with a roller system according to the invention in perspective, with extended Schiebetritt,
FIG. 3:
an enlarged view of a first embodiment of the movable roller according to the invention FIG. 2 .
FIG. 4:
the relatively movable role FIG. 3 in side view, roller unloaded, sliding step loaded
FIG. 5:
the relatively movable role FIG. 3 in side view, roller loaded, sliding step unloaded
FIG. 6:
a schematic diagram of a second embodiment of a relatively movable role in the section, Schiebetritt unloaded,
FIG. 7:
the relatively movable role FIG. 6 on average, pushing on foot,
FIG. 8:
the Schiebetrittausfahrvorrichtung invention in section, unloaded,
FIG. 9:
the Schiebetrittausfahrvorrichtung invention in section, loaded,
FIG. 10:
a perspective view of a roller module according to the invention.

Figur 1 zeigt die wesentlichen Komponenten einer Schiebetrittausfahrvorrichtung 20 mit einem ausgefahrenen Schiebetritt 22. Die Schiebetrittausfahrvorrichtung 20 funktioniert prinzipiell nach Art einer Schublade, der Schiebetritt 22 wird durch eine Öffnung des Gehäuses 24 in dieses ein- oder aus diesem herausgefahren. FIG. 1 shows the essential components of a Schiebetrittausfahrvorrichtung 20 with an extended sliding step 22. The Schiebetrittausfahrvorrichtung 20 works in principle like a drawer, the sliding step 22 is through an opening of the housing 24 in this or moved out of this.

Im gezeigten Ausführungsbeispiel sind die in Ein-Ausfahrrichtung verlaufenden Seitenteile des Gehäuses 24 als Führungsmittel 26 ausgeführt, in denen seitlich an dem Schiebetritt 22 angeordnete Rollen 28 geführt sind. Bei der gezeigten Schiebetrittausfahrvorrichtung 20 sind an jeder Seite zwei Rollen 28 vorgesehen, die bei einer Belastung des Schiebetritts 22 mit einer entsprechenden resultierenden Kraft beaufschlagt werden, wobei die in Ausfahrrichtung vordere Rolle 28 etwa doppelt so stark wie die hintere Rolle 28 belastet wird.In the exemplary embodiment shown, the side parts of the housing 24 which extend in the one-out direction are designed as guide means 26 in which rollers 28 arranged laterally on the sliding step 22 are guided. In the Schiebetrittausfahrvorrichtung 20 shown two rollers 28 are provided on each side, which are acted upon by a load of the sliding step 22 with a corresponding resultant force, wherein the front in the extension direction roller 28 is about twice as much as the rear roller 28 is charged.

Der Schiebetritt 22 weist eine Platte auf, die zwischen zwei parallel zu den Führungsmitteln 26 verlaufenden Seitenwangen 32 angeordnet ist. Die Seitenwangen 32 wirken sozusagen als Haltearme. Die Seitenwangen 32 bzw. Haltearme sind über eine zusätzliche Querverstrebung 34 miteinander verbunden.The sliding step 22 has a plate which is arranged between two parallel to the guide means 26 extending side cheeks 32. The side cheeks 32 act as a kind of retaining arms. The side cheeks 32 and retaining arms are connected to each other via an additional cross brace 34.

Weiterhin ist ein Antrieb 36 im in Ein- /Ausfahrrichtung hinteren Bereich der Schiebetrittausfahrvorrichtung 20 gezeigt.Furthermore, a drive 36 is shown in the rearward in the extension / extension direction of the Schiebetrittausfahrvorrichtung 20.

Die nachfolgenden Figuren verdeutlichen das erfindungsgemäße Rollensystem, wobei die erfindungsgemäße Schiebetrittausfahrvorrichtung 20 im Wesentlichen entsprechend der Schiebetrittausfahrvorrichtung 20 nach dem Stand der Technik aufgebaut ist.The following figures illustrate the roller system according to the invention, wherein the Schiebetrittausfahrvorrichtung invention 20 is constructed substantially according to the Schiebetrittausfahrvorrichtung 20 according to the prior art.

Die Figuren 2-5 zeigen eine erste Ausführungsvariante des erfindungsgemäßen Rollensystems. Erkennbar ist, dass die Rolle 28 an einem Zwischenelement 38 gelagert ist. Es handelt sich um hintere Rollen, die sich umgekehrt zu vorderen Rollen des Schiebetritts 22 verhalten. Die Rolle 28 läuft in dem Führungsmittel 26, das Zwischenelement 38 ist an einer Seitenwange 32 des Schiebetritts 22 befestigt. Das Zwischenelement 38 ist über ein Schwenklager 40 schwenkbar gelagert, wobei innerhalb des Schwenklagers 40 ein Federelement, vorzugsweise eine Drehfeder, vorgesehen ist. Figur 4 zeigt dabei die Position des Zwischenelements bei belasteten Schiebetritt 22, Figur 5 die Position bei abgesenktem und unbelastetem Schiebetritt 22. Das Rollensystem ist in den Figuren 4 und 5 freigeschnitten gezeigt, weswegen Führungsmittel 26 und weitere Bauteile nicht erkennbar sind. Die Kraft des Federelements in dem Schwenklager 40 ist derart gewählt, dass sich der Schiebetritt 22 erst bei zusätzlicher Belastung, die das Eigengewicht des Schiebetritts 22 übersteigt, absenkt. Nicht erkennbar ist, wie sich der Schiebetritt 22 auf einem stationären Bauteil des Fahrzeugs abstützt.The Figures 2-5 show a first embodiment of the roller system according to the invention. It can be seen that the roller 28 is mounted on an intermediate element 38. These are rear rollers that behave inversely to front rollers of the sliding step 22. The roller 28 runs in the guide means 26, the intermediate element 38 is fixed to a side wall 32 of the sliding step 22. The intermediate element 38 is pivotably mounted via a pivot bearing 40, wherein a spring element, preferably a torsion spring, is provided inside the pivot bearing 40. FIG. 4 shows the position of the intermediate element with loaded sliding step 22, FIG. 5 the position with lowered and unloaded sliding step 22. The roller system is in the FIGS. 4 and 5 shown cut, so guide means 26 and other components are not visible. The force of the spring element in the pivot bearing 40 is selected such that the sliding step 22 only at additional load, the Dead weight of the sliding step 22 exceeds, lowers. It is not apparent how the sliding step 22 is supported on a stationary component of the vehicle.

Die Figuren 6 und 7 zeigen eine weitere Ausführungsvariante eines erfindungsgemäßen Rollensystems in einer stark vereinfachten Prinzipskizze. Die Rolle 28 ist über ihre Rollenachse 42 am Schiebetritt 22 gelagert. Die Rolle 28 ist in vertikaler Richtung bewegbar, wobei ein Federelement 44 vorgesehen ist, das die Rolle 28 gemäß Figur 6 in ihrer Ausgangsposition hält. Die Rolle 28 ist in dem als Schiene ausgeführten Führungsmittel 26 geführt und kann in diesem verfahren werden.The FIGS. 6 and 7 show a further embodiment of a roller system according to the invention in a highly simplified schematic diagram. The roller 28 is mounted on its roller axis 42 on the sliding step 22. The roller 28 is movable in the vertical direction, wherein a spring element 44 is provided, which the roller 28 according to FIG. 6 holds in its initial position. The roller 28 is guided in the running as a rail guide means 26 and can be moved in this.

Figur 7 zeigt, dass sich der Schiebetritt 22 dann auf dem Führungsmittel 26 abstützen kann, wenn der Schiebetritt 22 ausreichend stark belastet wird (Belastungskraft Fb), und die Federkraft des Federelements 44 überwindend. Wie bereits ausgeführt, kann sich der Schiebetritt 22 aber auch auf anderen Bauteilen des Fahrzeugs abstützen. Fig. 7 zeigt die vordere Rolle, die hintere Rolle hat einen umgekehrten Aufbau. FIG. 7 shows that the sliding step 22 can then be supported on the guide means 26 when the sliding step 22 is sufficiently loaded (loading force F b ), and the spring force of the spring element 44 overcoming. As already stated, however, the sliding step 22 can also be supported on other components of the vehicle. Fig. 7 shows the front roller, the rear roller has a reverse construction.

Die Figuren 8 und 9 verdeutlichen die Kräfteverhältnisse, die auf die Zustiegshilfe im unbelasteten und belasteten Zustand wirken. Bei eingefahrener Position und bei Ausfahren des Schiebetritts 22 werden die Rollen 28 mit Eigengewicht Fg belastet. Gleichzeitig wirkt die Federkraft Ff im Schwenklager 40. Im unbelasteten Zustand wirkt keine Auflagekraft Fa.The FIGS. 8 and 9 illustrate the balance of power, which act on the boarding aid in the unloaded and loaded condition. When retracted position and when extending the sliding step 22, the rollers 28 are loaded with dead weight Fg. At the same time, the spring force F f acts in the pivot bearing 40. In the unloaded state, no contact force F a .

Figur 9 zeigt die Schiebetrittausfahrvorrichtung 20 im ausgefahrenen Zustand und unter Belastung. Es zeigt sich, dass in diesem Zustand die Auflagekraft Fa an zwei Stellen (Fa1 und Fa2) als resultierende Kraft zur Belastungkraft Fb wirkt. Die Federkraft Ff wurde überwunden und der Schiebetritt hat sich abgesenkt. FIG. 9 shows the Schiebetrittausfahrvorrichtung 20 in the extended state and under load. It turns out that in this state, the contact force F a at two points (F a 1 and F a 2) acts as a resultant force to the loading force F b . The spring force F f has been overcome and the Schiebetritt has lowered.

Figur 10 zeigt eine weitere vorteilhafte Verbesserung gegenüber dem Stand der Technik. Als wesentlicher Unterschied ist erkennbar, dass die bei der Schiebetrittausfahrvorrichtung 20 vordere Rolle 28 durch ein erfindungsgemäßes Rollenmodul 46 ersetzt ist. Der Aufbau und die Funktion des Rollenmoduls 46 ergeben sich insbesondere aus den Figuren 4 und 5. FIG. 10 shows a further advantageous improvement over the prior art. As an essential difference, it can be seen that the roller 28 at the front in the sliding step extension device 20 has been replaced by a roller module 46 according to the invention. The structure and function of the roller module 46 result in particular from the FIGS. 4 and 5 ,

Das Rollenmodul 46 weist im gezeigten Ausführungsbeispiel zwei Rollen (im Folgenden Modulrollen 48) auf, die in einer Rollenplatte 50 drehbar gelagert sind und jeweils in den Führungsmitteln 26 geführt sind. Die Rollenplatte 50 selbst ist wiederum dreh- oder schwenkbar um eine Schwenkachse X-X seitlich am Schiebetritt 22 gelagert. Somit wird die sonst auf die nur eine vordere Rolle 28 wirkende vertikale Kraft gleichmäßig auf zwei Modulrollen 48 verteilt, was gerade bei der in Ein- Ausfahrrichtung vorderen Rollenlagerung aufgrund der dort höheren Belastung von Vorteil ist. Die gleichmäßige Belastung der Modulrollen 48 ergibt sich dadurch, dass diese jeweils den gleichen Abstand zur Schwenkachse X-X aufweisen.The roller module 46 has in the illustrated embodiment, two rollers (in the following module rollers 48) which are rotatably mounted in a roller plate 50 and are guided in each case in the guide means 26. The roller plate 50 itself is in turn rotatably or pivotally mounted about a pivot axis X-X laterally on the sliding step 22. Thus, the otherwise acting on the only one front roller 28 vertical force is evenly distributed on two module rollers 48, which is just in the front in one-extension direction roller bearing due to the higher load there advantage. The uniform loading of the module rollers 48 results from the fact that they each have the same distance to the pivot axis X-X.

Das erfindungsgemäße Rollensystem erlaubt aufgrund seiner deutlich günstigeren Lastverteilung eine deutlich kleinere Dimensionierung einer Zustiegshilfe, insbesondere einer Schiebetrittausfahrvorrichtung 20. Wie bereits ausgeführt, eignet sich das Rollensystem für sämtliche ausfahrbaren Zustiegshilfen, wobei die Nutzung mit einem Schiebetritt 22 sicherlich als bevorzugte Ausführungsvariante anzusehen ist. Die Erfindung ist aber nicht auf das gezeigte Ausführungsbeispiel beschränkt.As already stated, the roller system is suitable for all extendable boarding aids, the use of a sliding step 22 is certainly regarded as a preferred embodiment variant is due to its significantly lower load distribution. The invention is not limited to the embodiment shown.

Claims (8)

  1. An extendable embarking aid of an entrance door of a passenger transport vehicle with a roller system, wherein
    - the embarking aid can be moved from a rest position into a use position and back,
    - guiding means (26) are provided which respectively extend laterally of the embarking aid in the extending/retraction direction, and
    - the embarking aid is guided by means of rollers (28) in the guiding means (26),
    characterized in that
    at least the axis of one of the rollers (28) can be moved vertically relative to the embarking aid, whereby the embarking aid can be moved in the vertical direction relative to the guiding means (26) of the movable roller (28) in such a way that the embarking aid, in the case of a vertical load (Fb) from above, can be supported on at least one stationary component of the passenger transport vehicle independently from the rollers, so that the vertical load (Fb) is not held by the rollers but is transmitted via the support into this stationary component of the passenger transport vehicle.
  2. The extendable embarking aid according to claim 1, characterized in that the embarking aid is supported on the guiding means (26) in the case of a vertical load (Fb).
  3. The embarking aid according to claim 1 or claim 2, characterized in that a force that counteracts the vertical load (Fb) acts on the movable roller (28).
  4. The embarking aid according to any one of the claims 1 to 3, characterized in that the roller (28) is mounted via its roller axis (42) on a sliding step (22), wherein the roller (28) is acted upon by a force in the vertical direction.
  5. The embarking aid according to any one of the claims 1 to 3, characterized in that the roller (28) is mounted on an intermediate member (38) and the intermediate member (38) is pivotably mounted on the embarking aid via a pivot bearing (40), with a spring member being provided within the pivot bearing (40).
  6. The embarking aid according to any one of the claims 1 to 5, characterized in that the embarking aid is guided laterally in the extension direction via two movable rollers (28), respectively.
  7. The extendable embarking aid according to any one of the claims 1 to 6, characterized in that the embarking aid is configured as a sliding step (22).
  8. The embarking aid according to any one of the claims 1 to 7, characterized in that the embarking aid comprises, for each guiding means (26), at least one roller module (38) with a roller plate (42) which is mounted at the side of the embarking aid so as to be pivotable about a pivot axis (X-X) and in which at least two module rollers (40) guided in the respective guiding means (26) are rotatably mounted.
EP10160476.7A 2009-04-20 2010-04-20 Roller system with support function for a retractable sliding step Active EP2243679B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10160476T PL2243679T3 (en) 2009-04-20 2010-04-20 Roller system with support function for a retractable sliding step

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009005740 2009-04-20
DE202009005045U DE202009005045U1 (en) 2009-04-20 2009-07-21 Roller system with support function

Publications (3)

Publication Number Publication Date
EP2243679A2 EP2243679A2 (en) 2010-10-27
EP2243679A3 EP2243679A3 (en) 2011-11-16
EP2243679B1 true EP2243679B1 (en) 2016-01-13

Family

ID=42733519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160476.7A Active EP2243679B1 (en) 2009-04-20 2010-04-20 Roller system with support function for a retractable sliding step

Country Status (4)

Country Link
EP (1) EP2243679B1 (en)
DE (1) DE202009005045U1 (en)
ES (1) ES2567458T3 (en)
PL (1) PL2243679T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI414442B (en) * 2010-09-18 2013-11-11 Nabtesco Corp Vehicle pedal device
AT513813B1 (en) * 2013-01-14 2014-10-15 Knorr Bremse Ges Mit Beschränkter Haftung Sliding step for a rail vehicle or a motor vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6502893B1 (en) * 2002-02-08 2003-01-07 Lawrence M. Corliss, Jr. Extendable deck assembly
DE202005018843U1 (en) * 2005-12-01 2007-04-12 Bode Gmbh & Co Kg Device for footprint detection on a footboard of a public transport vehicle
DE202006016432U1 (en) 2006-10-26 2008-02-28 Gebr. Bode Gmbh & Co. Kg Entry / exit device for a public transport vehicle with a sliding step arranged in a frame
DE202007000913U1 (en) * 2006-11-17 2007-04-05 Kircher, Werner Access and/or stepping-in aid for e.g. autobus, has driving units arranged between guiding rails and outer wall of side parts, connected with step plate, and guided by guide roller and drive roller, which is connected with drive motor
DE202007000912U1 (en) 2007-01-18 2007-04-05 Kircher, Werner Boarding aid or access facility for vehicles, has drive means which has drive element and which is designed as chain or belt whereby drive element is guided by deflection pulley

Also Published As

Publication number Publication date
PL2243679T3 (en) 2016-07-29
EP2243679A3 (en) 2011-11-16
EP2243679A2 (en) 2010-10-27
ES2567458T3 (en) 2016-04-22
DE202009005045U1 (en) 2010-09-09

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