EP4029756B1 - Footrest with height adjustable footplate for guiding a vehicle - Google Patents

Footrest with height adjustable footplate for guiding a vehicle Download PDF

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Publication number
EP4029756B1
EP4029756B1 EP22000006.1A EP22000006A EP4029756B1 EP 4029756 B1 EP4029756 B1 EP 4029756B1 EP 22000006 A EP22000006 A EP 22000006A EP 4029756 B1 EP4029756 B1 EP 4029756B1
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EP
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Prior art keywords
bearing
case
foot
foot rest
support levers
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German (de)
French (fr)
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EP4029756A1 (en
Inventor
Günther Volke
Andreas Volke
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Tever Technik & Co Kg GmbH
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Tever Technik & Co Kg GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof

Definitions

  • the invention relates to a foot platform with a height-adjustable step plate for driving a vehicle, the foot platform having at least one step plate, an electric drive and a base plate.
  • a driver's seat is usually used in a rail vehicle, which is height-adjustable in order to adapt to the different sizes of the locomotive drivers.
  • a footrest is used, which is also height-adjustable so that the vehicle driver can put his feet down and, if necessary, operate pedals with his foot, which can be attached to the footplate.
  • a height-adjustable platform is known in which a sliding carriage is supported vertically against a base and can be adjusted in the vertical direction using a gas pressure spring via a foot lever.
  • the EP 3 065 990 B1 describes a foot platform with a pivotably mounted foot rest element, which is supported on its underside on a gas pressure spring and has a mechanically actuated locking device with a spring-loaded locking element.
  • the footrest has a first housing part, which serves as a base housing, as well as a second housing part, which serves as a receiving housing for a drive device, having an electric drive and a threaded shaft, and a third housing part, which serves as a cover housing.
  • an adjustable footrest for train drivers or tram drivers with a platform, frame or frame and a pivotally guided lifting or lowering unit, which is coupled to a drive, with two pivotally guided joints, which consist of lower and upper arms, working together in a parallelogram-like manner ( PL 225 552 B1 ).
  • a similar principle is also from the PL 225 516 B1 and the PL 225 463 B1 known.
  • the PL 218 034 B1 describes a height-adjustable foot platform for the driver's cab of rail vehicles.
  • the EP 2 637 894 B1 , the DE 20 2016 004 888 U1 and the CN 1 07 901 928 A describe a height-adjustable platform that includes: a height-adjustable pedestal platform, a spring unit which provides a spring force according to a corresponding spring characteristic and a lever mechanism which is interposed between the spring unit and the pedestal platform in such a way that the spring force is transmitted to the pedestal platform by the lever mechanism in such a way that a lifting force is provided which counteracts the weight of the podium platform in order to make the height adjustment of the podium platform easier.
  • a modular foot pedestal having at least one base frame, which has a height adjustment mechanism, an intermediate frame mounted on a base frame, a gas pressure spring and a footboard.
  • the invention is based on the object of developing a foot platform with a height-adjustable tread plate for guiding a rail vehicle, which can be operated largely autonomously, the tread plate of which can be moved smoothly, can be locked and loaded freely throughout the entire lifting and lowering movement and can also be moved from the lowest one without any signs of jamming Position can be easily extended again.
  • the three-point bearing is designed in such a way that the distance between the upper and lower bearings of the two support levers and between the lower bearing of the two support levers and the lower attachment point (pivot point) of the gas pressure spring or the threaded spindle has a ratio of ⁇ 8 to 1 . This ratio remains the same in all positions of the treadplate.
  • the upper bearing performs a circular arc in its movement up and down.
  • a triangle is formed via the three-point bearing.
  • the design of the three-point bearing according to the invention means that the tread plate can be easily and completely easily extended from its lower position, with the gas pressure spring or the threaded spindle with electric drive in the retracted state in an almost horizontal position.
  • the gearbox and the spindle wheel of the electric drive are integrated in a housing.
  • An extension tube that accommodates the threaded spindle is attached to the housing with a joint eye, the joint eye having a bore.
  • the structure used to guide the tread plate vertically is attached to a rear wall.
  • the Figures 1 to 3 show the foot platform with its step plate 1, the angle elements 32; 33 and the base plate 2. Between the tread plate 1 and the base plate 2 there are two support levers 3; 4 arranged, each with an upper and a lower bearing 8; 9 have.
  • the lower bearing 9 has a connecting bolt 5 which has brackets 35; 36; 37; 38 on the spacers 20; 21 is attached.
  • the receptacle 11 is attached to the connecting bolt 5, which also functions as an upper bearing 8, into which the upper fastening point 12 of the gas pressure spring 7 or the threaded spindle 60 is integrated ( Figure 2 ).
  • the gas pressure spring 7 or the threaded spindle 60 have the bearing 13 as the lower attachment point, which has the brackets 39; 40 is attached to the base plate 2.
  • the two support levers 3; 4 have at their respective upper ends the connecting bolt 10, to which at least one roller 14 is attached, which is supported on the underside of the tread plate 1.
  • the upper area of the tread plate 1 is guided in a vertically movable manner on both sides in a structure 24; 25 which is offset by 90° and runs on one side in a U-shaped guide 22; 23.
  • the three-point bearing according to the invention is designed in such a way that the distance between the upper and lower bearings 8; 9 of the two support levers 3; 4 and between the lower bearing 9 of the two support levers 3; 4 and the lower attachment point/bearing 13 of the gas pressure spring or the Threaded spindle 7 has a ratio of ⁇ 8 to 1. Only this very special design ensures that the gas pressure spring 7 or the threaded spindle 60 can be guided back up from the lower position ( Figure 3) via the electric drive 41 without any special effort.
  • the upper bearing 8 of the support levers 8; 9 runs a circular path.
  • the construction 24; 25, which is offset by 90°, then slides upwards in a stable manner in the respective U-shaped guide 22; 23.
  • the three-point bearing according to the invention acts in the form of a triangle, which ensures that the three bearings are always at the same distance from one another when the foot platform moves up and down.
  • This construction in turn ensures a lot of stability against lateral twists and very easy movement of the foot platform up and down, even for women.
  • the construction 24 used for vertical guidance of the tread plate 1; 25 is attached to the rear wall 31.
  • the tread plate 1 has at least one stop 6 at its lower end.
  • the electric drive 41 with threaded spindle 60 has an electric motor 42, which is connected to the threaded spindle 60 via a gear 43 and a spindle wheel 46.
  • the gear 43 and the spindle wheel 46 are integrated in a housing 50.
  • a joint eye 55 which accommodates the threaded spindle 60 and has the bore 56 is attached to the housing 50.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Passenger Equipment (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Description

Die Erfindung betrifft ein Fußpodest mit höhenverstellbarer Trittplatte zum Führen eines Fahrzeuges, wobei das Fußpodest zumindest eine Trittplatte, einen elektrischen Antrieb und eine Bodenplatte aufweist.The invention relates to a foot platform with a height-adjustable step plate for driving a vehicle, the foot platform having at least one step plate, an electric drive and a base plate.

Üblicherweise wird bei einem Schienenfahrzeug ein Fahrersitz verwendet, der höhenverstellbar ist, um eine Anpassung an die unterschiedlichen Größen der Lokomotivführer herbeizuführen. Hierzu wird eine Fußstütze verwendet, die ebenfalls höhenverstellbar ist, damit der Fahrzeugführer seine Füße abstellen und ggfs. Pedale per Fuß betätigen kann, die auf der Trittplatte angebracht werden können.A driver's seat is usually used in a rail vehicle, which is height-adjustable in order to adapt to the different sizes of the locomotive drivers. For this purpose, a footrest is used, which is also height-adjustable so that the vehicle driver can put his feet down and, if necessary, operate pedals with his foot, which can be attached to the footplate.

Aus der EP 1 375 288 B1 ist ein höhenverstellbares Podest bekannt, bei dem ein Gleitschlitten vertikal gegen eine Basis abgestützt ist und mithilfe einer Gasdruckfeder über einen Fußhebel in vertikaler Richtung verstellbar ist.From the EP 1 375 288 B1 A height-adjustable platform is known in which a sliding carriage is supported vertically against a base and can be adjusted in the vertical direction using a gas pressure spring via a foot lever.

Die EP 3 065 990 B1 beschreibt ein Fußpodest mit einem schwenkbar gelagerten Fußabsetzelement, das sich an seiner Unterseite auf einer Gasdruckfeder abstützt und eine mechanisch betätigbare Arretiereinrichtung mit einem federbelasteten Verriegelungselement aufweist.The EP 3 065 990 B1 describes a foot platform with a pivotably mounted foot rest element, which is supported on its underside on a gas pressure spring and has a mechanically actuated locking device with a spring-loaded locking element.

Weitere Schriften zum Stand der Technik sind das deutsche Gebrauchsmuster DE 29 813 118 U1 sowie die US-Patentanmeldung US 2012/0 112 035 A1 .Other publications on the state of the art include the German utility model DE 29 813 118 U1 and the US patent application US 2012/0 112 035 A1 .

Aus der DE 10 2012 216 561 B3 ist höhenverstellbare Fußstütze für ein Schienenfahrzeug bekannt. Die Fußstütze besitzt ein erstes Gehäuseteil, welches als Basisgehäuse dient sowie ein zweites Gehäuseteil, welches als Aufnahmegehäuse für eine Antriebseinrichtung, aufweisend einen elektrischen Antrieb und eine Gewindewelle, dient und ein drittes Gehäuseteil, welches als Abdeckgehäuse dient.From the DE 10 2012 216 561 B3 Height-adjustable footrest for a rail vehicle is known. The footrest has a first housing part, which serves as a base housing, as well as a second housing part, which serves as a receiving housing for a drive device, having an electric drive and a threaded shaft, and a third housing part, which serves as a cover housing.

Ebenfalls bekannt ist eine verstellbare Fußraste für Lokführer oder Straßenbahnfahrer mit einem Podest, Gestell oder Rahmen und einer schwenkbar geführten Hebe- bzw. Senkeinheit, die an einen Antrieb gekoppelt ist, wobei zwei schwenkbar geführte Gelenke, die aus unteren und oberen Armen bestehen parallellogramm artig zusammenwirken ( PL 225 552 B1 ). Ein ähnliches Prinzip ist ebenfalls aus der PL 225 516 B1 und der PL 225 463 B1 bekannt.Also known is an adjustable footrest for train drivers or tram drivers with a platform, frame or frame and a pivotally guided lifting or lowering unit, which is coupled to a drive, with two pivotally guided joints, which consist of lower and upper arms, working together in a parallelogram-like manner ( PL 225 552 B1 ). A similar principle is also from the PL 225 516 B1 and the PL 225 463 B1 known.

Auch die PL 218 034 B1 beschreibt ein höhenverstellbares Fußpodest für den Führerstand von Schienenfahrzeugen.Also the PL 218 034 B1 describes a height-adjustable foot platform for the driver's cab of rail vehicles.

Die EP 2 637 894 B1 , die DE 20 2016 004 888 U1 und die CN 1 07 901 928 A beschreiben ein höhenverstellbares Podest, welches umfasst:
eine höhenverstellbare Podestplattform, eine Federeinheit, welche eine Federkraft gemäß einer entsprechenden Federkennlinie bereitstellt und einen Hebelmechanismus, welcher zwischen der Federeinheit und der Podestplattform derart zwischengeschaltet ist, dass die Federkraft durch den Hebelmechanismus auf die Podestplattform auf eine solche Weise übertragen wird, dass eine Hubkraft bereitgestellt wird, welche der Gewichtskraft der Podestplattform entgegenwirkt, um die Höhenverstellung der Podestplattform zu erleichtern.The EP 2 637 894 B1 , the DE 20 2016 004 888 U1 and the CN 1 07 901 928 A describe a height-adjustable platform that includes:
a height-adjustable pedestal platform, a spring unit which provides a spring force according to a corresponding spring characteristic and a lever mechanism which is interposed between the spring unit and the pedestal platform in such a way that the spring force is transmitted to the pedestal platform by the lever mechanism in such a way that a lifting force is provided which counteracts the weight of the podium platform in order to make the height adjustment of the podium platform easier.

Des Weiteren ist aus der DE 10 2018 207 035 A1 und der CN 1 09 278779 A ein modulares Fußpodest bekannt, wobei das Fußpodest zumindest einen Grundrahmen, welcher einen Höhenverstellmechanismus, einen auf einem Grundrahmen angebrachten Zwischenrahmen, eine Gasdruckfeder und ein Trittbrett aufweist.Furthermore, from the DE 10 2018 207 035 A1 and the CN 1 09 278779 A a modular foot pedestal is known, the foot pedestal having at least one base frame, which has a height adjustment mechanism, an intermediate frame mounted on a base frame, a gas pressure spring and a footboard.

Die in verschiedenen Konstruktionen verwendeten Gasdruckfedern sind in der untersten Position des Fußpodestes nahezu horizontal zusammengefahren. Die Fußpodeste lassen sich aufgrund der verwendeten Konstruktionen aus dieser Position nur sehr kompliziert wieder ausfahren und verklemmen sich oftmals. Dies stellt für kleinere Personen ein erhebliches Problem in der Handhabbarkeit der Fußpodeste dar.The gas pressure springs used in various designs are moved together almost horizontally in the lowest position of the foot platform. Due to the construction used, the foot platforms are very difficult to extend from this position and often get jammed. This represents a significant problem in the handling of the foot platforms for smaller people.

Die bekannten vergleichbaren Vorrichtungen weisen folgende Nachteile auf:

  • sie sind oftmals nicht autonom betreibbar, sondern erfordern fahrzeugseitige Leitungen zur Versorgung / Steuerung,
  • sie sind nicht ausreichend belastbar,
  • sie sind teuer in der Herstellung,
  • sie erfordern eine große Teilevielfalt,
  • sie sind aufwendig zu warten,
  • sie erfordern einen vertikalen Rahmen, wodurch sich die für den Fahrer verfügbare Fläche der Trittplatte dadurch verringert
  • sie sind nur mit viel Krafteinwirkungen absenkbar, also für Frauen oftmals ungeeignet und
  • sie sind - insbesondere als Scherenkonstruktionen - anfällig gegen unterhalb der Trittplatte anfallenden Verschmutzungen sowie gegen niedrige Temperaturen < 9°C.
The known comparable devices have the following disadvantages:
  • They often cannot be operated autonomously, but require cables on the vehicle for supply/control,
  • they are not sufficiently resilient,
  • they are expensive to produce,
  • they require a large variety of parts,
  • they are difficult to maintain,
  • they require a vertical frame, thereby reducing the area of the treadplate available to the driver
  • They can only be lowered with a lot of force, so they are often unsuitable for women
  • They are - especially as scissor constructions - susceptible to dirt accumulating below the tread plate and to low temperatures < 9°C.

Der Erfindung liegt die Aufgabe zugrunde, ein Fußpodest mit höhenverstellbarer Trittplatte zum Führen eines Schienenfahrzeuges zu entwickeln, das weitgehend autonom betreibbar, dessen Trittplatte in der gesamten Hub- und Senkbewegung leichtgängig stufenlos beweglich, arretier- und belastbar ist und sich ohne Verklemmungserscheinungen auch aus der untersten Position problemlos wieder ausfahren lässt.The invention is based on the object of developing a foot platform with a height-adjustable tread plate for guiding a rail vehicle, which can be operated largely autonomously, the tread plate of which can be moved smoothly, can be locked and loaded freely throughout the entire lifting and lowering movement and can also be moved from the lowest one without any signs of jamming Position can be easily extended again.

Dies wird erfindungsgemäß dadurch erreicht, dass
die Höhenverstellung der Trittplatte (1) des Fußpodestes als gelenkige Dreipunkt-Lagerung ausgeführt ist,

  • wobei zwischen der Tritt- und der Bodenplatte (1;2) zwei parallel angeordnete Traghebel (3; 4) befindlich sind, die jeweils ein oberes sowie ein unteres Lager (8;9) aufweisen und das obere Lager (8) auf einen zwischen den Traghebeln (3; 4) befestigten Verbindungsbolzen (5) angeordnet ist, an dem eine Aufnahme (11) für den oberen Befestigungspunkt (12) einer Gasdruckfeder (7) oder einer Gewindespindel (60) eines elektrischen Antriebs (41) angeordnet ist und die Gasdruckfeder oder Gewindespindel (60) als unteren Befestigungspunkt ein weiteres Lager (13) aufweist, welches auf der Bodenplatte (2) über Halterungen (39;40) aufsitzt,
  • wobei beide Traghebel (3;4) an ihren jeweiligen oberen Enden einen sie verbindenden weiteren Verbindungsbolzen (10) aufweisen, an dem mindestens eine Rolle (14) befestigt ist, die an der Unterseite der Trittplatte (1) stützend geführt ist,
  • wobei im unteren Bereich beider Traghebel (3;4) jeweils ein Element als Festpunkt (15; 16), bei der Verwendung einer Gasdruckfeder (7), für jeweils eine Torsionsfeder (17; 18) angeordnet ist, wobei diese auf einem im unteren Lager angeordneten Bolzen (19) geführt ist, der beidseitig über Halterungen (34; 35; 36; 36; 37) auf mindestens zwei auf der Bodenplatte (2) aufsitzenden Distanzstücken (20; 21) befestigt ist, wobei die Distanzstücken (20; 21) als zweiter Festpunkt für die Torsionsfedern (17; 18) dient und, bei Verwendung eines elektrischen Antriebs (41) mit einer Gewindespindel (60), jeweils ein Endlagenschalter (57; 58) mit jeweils einem Hebel (59) angeordnet sind,
  • wobei die Trittplatte (1) in ihrem oberen Bereich beidseitig in einer jeweils um 90° versetzten und auf einer Seite in einer U-förmigen Führung (22;23) laufenden jeweiligen Konstruktion (24;25) vertikal beweglich geführt ist.
This is achieved according to the invention in that
the height adjustment of the footplate (1) of the foot platform is designed as an articulated three-point bearing,
  • whereby there are two parallel support levers (3; 4) between the tread plate and the base plate (1; 2), each of which has an upper and a lower bearing (8; 9) and the upper bearing (8) is mounted on one between the Supporting levers (3; 4) fastened connecting bolts (5) are arranged, on which a receptacle (11) for the upper fastening point (12) of a gas pressure spring (7) or a threaded spindle (60) of an electric drive (41) is arranged and the gas pressure spring or threaded spindle (60) has a further bearing (13) as the lower fastening point, which sits on the base plate (2) via brackets (39; 40),
  • wherein both support levers (3; 4) have at their respective upper ends a further connecting bolt (10) connecting them, to which at least one roller (14) is attached, which is guided in a supporting manner on the underside of the tread plate (1),
  • wherein in the lower area of both support levers (3; 4) one element is arranged as a fixed point (15; 16), when using a gas pressure spring (7), for each torsion spring (17; 18), this being on one in the lower bearing arranged bolt (19), which is fastened on both sides via brackets (34; 35; 36; 36; 37) on at least two spacers (20; 21) resting on the base plate (2), the spacers (20; 21) serves as a second fixed point for the torsion springs (17; 18) and, when using an electric drive (41) with a threaded spindle (60), a limit switch (57; 58) each with a lever (59) is arranged,
  • wherein the upper region of the tread plate (1) is guided in a vertically movable manner on both sides in a respective construction (24; 25) which is offset by 90° and runs on one side in a U-shaped guide (22; 23).

Dabei ist die Dreipunkt-Lagerung so ausgebildet, dass der Abstand zwischen dem oberen und dem unteren Lager der beiden Traghebel sowie zwischen dem unteren Lager der beiden Traghebel und dem unteren Befestigungspunkt (Drehpunkt) der Gasdruckfeder oder der Gewindespindel ein Verhältnis von < 8 zu 1 aufweist. Dieses Verhältnis bleibt in allen Stellungen der Trittplatte gleich. Dabei führt das obere Lager in seiner Bewegung nach oben und nach unten jeweils einen Kreisbogen aus.The three-point bearing is designed in such a way that the distance between the upper and lower bearings of the two support levers and between the lower bearing of the two support levers and the lower attachment point (pivot point) of the gas pressure spring or the threaded spindle has a ratio of <8 to 1 . This ratio remains the same in all positions of the treadplate. The upper bearing performs a circular arc in its movement up and down.

Über die Dreipunkt-Lagerung wird ein Dreieck gebildet.A triangle is formed via the three-point bearing.

Die erfindungsgemäße Ausbildung der Dreipunkt-Lagerung führt dazu, dass die Trittplatte aus ihrer unteren Position, bei einer nahezu horizontalen Position der Gasdruckfeder oder der Gewindespindel mit elektrischem Antrieb im eingefahrenen Zustand leicht und völlig problemlos auszufahren ist.The design of the three-point bearing according to the invention means that the tread plate can be easily and completely easily extended from its lower position, with the gas pressure spring or the threaded spindle with electric drive in the retracted state in an almost horizontal position.

Das Getriebe und das Spindelrad des elektrischen Antriebs sind in einem Gehäuse integriert.The gearbox and the spindle wheel of the electric drive are integrated in a housing.

Am Gehäuse ist ein die Gewindespindel aufnehmendes Verlängerungsrohr mit einem Gelenkauge befestigt, wobei das Gelenkauge eine Bohrung aufweist.An extension tube that accommodates the threaded spindle is attached to the housing with a joint eye, the joint eye having a bore.

Die zur vertikalen Führung der Trittplatte verwendete Konstruktion ist an einer Rückwand befestigt.The structure used to guide the tread plate vertically is attached to a rear wall.

Die erfindungsgemäße Lösung weist folgende Vorteile auf:

  • das Fußpodest ist weitgehend autonom betreibbar, mit 100 kg belastbar und die Trittplatte ist stufenlos höhenverstell- und arretierbar,
  • das gesamte Fußpodest ist einfach aufgebaut und hat ein geringes Gewicht,
  • die Konstruktion ist wartungsfrei,
  • der Einfahr- und Ausfahrmechanismus ist aufgrund der Dreigelenk-Lagerung leichtgängig,
  • die Konstruktion ist preiswert und weist wenige Bauteile auf,
  • die Konstruktion ist wenig empfindlich gegen Verschmutzungen,
  • die Hub-Konstruktion ist sehr sicher und stabil vertikal geführt
  • sie ist unempfindlich gegen niedrige Temperaturen.
The solution according to the invention has the following advantages:
  • the foot platform can be operated largely autonomously, can hold up to 100 kg and the step plate can be infinitely height-adjusted and locked,
  • the entire foot platform is simply constructed and has a low weight,
  • the construction is maintenance-free,
  • the retraction and extension mechanism runs smoothly due to the three-joint bearing,
  • the construction is inexpensive and has few components,
  • the construction is not very sensitive to dirt,
  • The hub construction is very safe and stable vertically
  • it is insensitive to low temperatures.

AusführungsbeispielExample embodiment

Nachfolgend soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment.

Dabei zeigt:

  • Figur 1 - die Vorrichtung unter Verwendung einer Gasdruckfeder in 3D-Darstellung im ausgefahrenen Zustand
  • Figur 2 - die Vorrichtung unter Verwendung einer Gasdruckfeder in der Seitenansicht im ausgefahrenen Zustand
  • Figur 3 - die Vorrichtung unter Verwendung einer Gasdruckfeder in 3D-Ansicht im eingefahrenen Zustand
  • Figur 4 - die Vorrichtung unter Verwendung eines elektrischen Antriebs mit Gewindespindel in der Seitenansicht im ausgefahrenen Zustand
  • Figur 5 - den elektrischen Antrieb mit seinen Bauteilen in der Seitenansicht
This shows:
  • Figure 1 - The device using a gas pressure spring in 3D representation in the extended state
  • Figure 2 - The device using a gas pressure spring in a side view in the extended state
  • Figure 3 - The device using a gas pressure spring in a 3D view in the retracted state
  • Figure 4 - The device using an electric drive with a threaded spindle in a side view in the extended state
  • Figure 5 - The electric drive with its components in a side view

Die Figuren 1 bis 3 zeigen das Fußpodest mit seiner Trittplatte 1, den Winkelelementen 32; 33 und der Bodenplatte 2. Zwischen der Trittplatte 1 und der Bodenplatte 2 sind zwei Traghebel 3; 4 angeordnet, die jeweils ein oberes und ein unteres Lager 8; 9 aufweisen.The Figures 1 to 3 show the foot platform with its step plate 1, the angle elements 32; 33 and the base plate 2. Between the tread plate 1 and the base plate 2 there are two support levers 3; 4 arranged, each with an upper and a lower bearing 8; 9 have.

Das untere Lager 9 weist einen Verbindungsbolzen 5 auf, der über Halterungen 35; 36; 37; 38 auf den Distanzstücken 20; 21 befestigt ist.The lower bearing 9 has a connecting bolt 5 which has brackets 35; 36; 37; 38 on the spacers 20; 21 is attached.

Am Verbindungsbolzen 5, der auch als oberes Lager 8 fungiert, ist die Aufnahme 11 befestigt, in die der oberer Befestigungspunkt 12 der Gasdruckfeder 7 oder der Gewindespindel 60 eingebunden ist (Figur 2). Die Gasdruckfeder 7 oder die Gewindespindel 60 weisen als unteren Befestigungspunkt das Lager 13 auf, welches über die Halterungen 39; 40 an der Bodenplatte 2 befestigt ist.The receptacle 11 is attached to the connecting bolt 5, which also functions as an upper bearing 8, into which the upper fastening point 12 of the gas pressure spring 7 or the threaded spindle 60 is integrated ( Figure 2 ). The gas pressure spring 7 or the threaded spindle 60 have the bearing 13 as the lower attachment point, which has the brackets 39; 40 is attached to the base plate 2.

Die beiden Traghebel 3;4 weisen an ihren jeweiligen oberen Enden den Verbindungsbolzen 10 auf, an dem mindestens eine Rolle 14 befestigt sind, die an der Unterseite der Trittplatte 1 stützend geführt ist.The two support levers 3; 4 have at their respective upper ends the connecting bolt 10, to which at least one roller 14 is attached, which is supported on the underside of the tread plate 1.

Die Trittplatte 1 ist in ihrem oberen Bereich beidseitig in einer jeweils um 90° versetzten und auf einer Seite in einer U-förmigen Führung 22;23 laufenden Konstruktion 24;25 vertikal beweglich geführt.The upper area of the tread plate 1 is guided in a vertically movable manner on both sides in a structure 24; 25 which is offset by 90° and runs on one side in a U-shaped guide 22; 23.

Die erfindungsgemäße Dreipunktlagerung ist dabei so ausgebildet, dass der Abstand zwischen dem oberen und dem unteren Lager 8;9 der beiden Traghebel 3;4 sowie zwischen dem unteren Lager 9 der beiden Traghebel 3;4 und dem unteren Befestigungspunkt / Lager 13 der Gasdruckfeder oder der Gewindespindel 7 ein Verhältnis von <8 zu 1 aufweist. Nur durch diese sehr spezielle Ausführung ist es gewährleistet, dass sich die Gasdruckfeder 7 oder die Gewindespindel 60 über den elektrischen Antrieb 41 aus der unteren Position (Figur 3) ohne besondere Aufwendungen wieder nach oben führen lässt. Das obere Lager 8 der Traghebel 8;9 führt dabei eine kreisförmige Bahn aus. Die um 90° versetzt ausgebildete Konstruktion 24;25 gleitet dann in der jeweiligen U-förmigen Führung 22;23 stabil geführt nach oben.The three-point bearing according to the invention is designed in such a way that the distance between the upper and lower bearings 8; 9 of the two support levers 3; 4 and between the lower bearing 9 of the two support levers 3; 4 and the lower attachment point/bearing 13 of the gas pressure spring or the Threaded spindle 7 has a ratio of <8 to 1. Only this very special design ensures that the gas pressure spring 7 or the threaded spindle 60 can be guided back up from the lower position (Figure 3) via the electric drive 41 without any special effort. The upper bearing 8 of the support levers 8; 9 runs a circular path. The construction 24; 25, which is offset by 90°, then slides upwards in a stable manner in the respective U-shaped guide 22; 23.

Die erfindungsgemäße Dreipunkt-Lagerung wirkt dabei in Form eines Dreieckes, welches absichert, dass sich bei Auf- und Abwärtsbewegungen des Fußpodestes die drei Lager immer im gleichen Abstandsverhältnis zueinander befinden.The three-point bearing according to the invention acts in the form of a triangle, which ensures that the three bearings are always at the same distance from one another when the foot platform moves up and down.

Diese Konstruktion wiederum sichert sehr viel Stabilität gegen seitliche Verwindungen und ein sehr leichtes Auf- und Abwärtsbewegen des Fußpodestes auch für Frauen ab.This construction in turn ensures a lot of stability against lateral twists and very easy movement of the foot platform up and down, even for women.

Die zur vertikalen Führung der Trittplatte 1 verwendete Konstruktion 24; 25 ist an der Rückwand 31 befestigt.The construction 24 used for vertical guidance of the tread plate 1; 25 is attached to the rear wall 31.

Die Trittplatte 1 weist an ihrem unteren Ende mindestens einen Anschlag 6 auf.The tread plate 1 has at least one stop 6 at its lower end.

Bei Verwendung eines elektrischen Antriebs 41 (Figur 4 und 5) mit Gewindespindel 60 anstelle der Gashubfeder 7 bleibt die Gesamtkonstruktion nahezu unverändert bestehen, wobei die Torsionsfedern 17; 18 entfallen können. Auch der Auslöser 28 mit Feder 26, Aufnahme 29 und Bowdenzug 30 können dann entfallen.When using an electric drive 41 ( Figure 4 and 5 ) with threaded spindle 60 instead of the gas lift spring 7, the overall construction remains almost unchanged, with the torsion springs 17; 18 can be omitted. The trigger 28 with spring 26, holder 29 and Bowden cable 30 can then be omitted.

Der elektrische Antrieb 41 mit Gewindespindel 60 weist dabei einen Elektromotor 42 auf, der über ein Getriebe 43 und ein Spindelrad 46 mit der Gewindespindel 60 verbunden ist.The electric drive 41 with threaded spindle 60 has an electric motor 42, which is connected to the threaded spindle 60 via a gear 43 and a spindle wheel 46.

Das Getriebe 43 und das Spindelrad 46 sind in einem Gehäuse 50 integriert.The gear 43 and the spindle wheel 46 are integrated in a housing 50.

Am Gehäuse 50 ist ein die Gewindespindel 60 aufnehmendes Gelenkauge 55 befestigt, welches die Bohrung 56 aufweist.A joint eye 55 which accommodates the threaded spindle 60 and has the bore 56 is attached to the housing 50.

BezugszeichenlisteReference symbol list

11 - Trittplatte- Tread plate 22 - Bodenplatte- Base plate 33 - Traghebel- Carrying lever 44 - Traghebel- Carrying lever 55 - Verbindungsbolzen- Connecting bolts 66 - Anschlag- Attack 77 - Gewindespindel- Threaded spindle 88th - oberes Lager- upper bearing 99 - unteres Lager- lower bearing 1010 - Verbindungsbolzen- Connecting bolts 1111 - Aufnahme- Recording 1212 - oberer Befestigungspunkt- top attachment point 1313 - unterer Befestigungspunkt / Lager- lower attachment point/bearing 1414 - Rolle- role 1515 - Festpunkt- fixed point 1616 - Festpunkt- fixed point 1717 - Torsionsfeder- Torsion spring 1818 - Torsionsfeder- Torsion spring 1919 - Bolzen- Bolt 2020 - Distanzstück- Spacer 2121 - Distanzstück- Spacer 2222 - U-förmige Führung- U-shaped guide 2323 - U-förmige Führung- U-shaped guide 2424 - Konstruktion- Construction 2525 - Konstruktion- Construction 2626 - Feder- Feather 2727 - frei- free 2828 - Auslöser- Trigger 2929 - Aufnahme- Recording 3030 - Bowdenzug- Bowden cable 3131 - Rückwand- Back wall 3232 - frei- free 3333 - frei- free 3535 - Halterung- Bracket 3636 - Halterung- Bracket 3737 - Halterung- Bracket 3838 - Halterung- Bracket 3939 - Halterung- Bracket 4040 - Halterung- Bracket 4141 - elektrischer Antrieb- electric drive 4242 - Elektromotor- Electric motor 4343 - Getriebe- Transmission 4444 - frei- free 4545 - frei- free 4646 - Spindelrad- Spindle wheel 4747 - frei- free 4848 - frei- free 4949 - frei- free 5050 - Gehäuse- Housing 5151 - frei- free 5252 - frei- free 5353 - frei- free 5454 - Verlängerungsrohr- Extension tube 5555 - Gelenkauge- Articulated eye 5656 - Bohrung- Drilling 5757 - Endlagenschalter- Limit switch 5858 - Endlagenschalter- Limit switch 5959 - Hebel- Lever

Claims (8)

  1. A foot rest with height-adjustable foot plate for driving a vehicle, the foot rest having at least a foot plate, a gas spring and a base plate,
    characterized in that
    the height adjustment of the foot plate (1) of the foot rest is realized as an articulated three-point bearing,
    - wherein two support levers (3; 4), which are arranged in parallel, are to be found between the foot plate and the base plate (1; 2), which support levers in each case have an upper and a lower bearing (8; 9) and the upper bearing (8) is arranged on a connecting bolt (5), which is fastened between the support levers (3; 4), on which connecting bolt a receptacle (11) for the upper fastening point (12) of a gas spring (7) or a threaded spindle (60) of an electric drive (41) is arranged and the gas spring or threaded spindle (60) has a further bearing (13) as lower fastening point, which bearing rests on the base plate (2) via holders (39; 40),
    - wherein both support levers (3; 4) at their respective upper ends have a further connecting bolt (10) which connects the support levers, to which connecting bolt at least one roller (14) is fastened, which is guided on the underside of the foot plate (1) in a supporting manner,
    - wherein in the lower region of both support levers (3; 4), one element in each case is arranged as anchor point (15; 16),
    - in the case of the use of a gas spring (7),
    - for one torsion spring (17; 18) in each case, wherein this torsion spring is guided on a bolt (19) arranged in the lower bearing, which bolt is fastened on both sides via holders (34; 35; 36; 37) on at least two spacers (20; 21), which are resting on the base plate (2), wherein the spacers (20; 21) are used as second anchor point for the torsion springs (17, 18) and,
    - in the case of the use of an electric drive (41) with a threaded spindle (60),
    - in each case one limit switch (57; 58) with in each case one lever (59) is arranged,
    - wherein the foot plate (1) in its upper region is guided in a vertically movable manner on both sides in a respective construction (24; 25), which is in each case offset by 90° and runs on one side in a U-shaped guide (22; 23).
  2. The foot rest according to Claim 1, characterized in that
    the three-point bearing is designed such that the distance between the upper and the lower bearing (8; 9) of the two support levers (3; 4) and between the lower bearing (9) of the two support levers (3; 4) and the lower fastening point/bearing (13) of the gas spring (7) or the threaded spindle (60) has a ratio of < 8 to 1.
  3. The foot rest according to Claim 1 to 2, characterized in that
    the three-point bearing is designed as a triangle.
  4. The foot rest according to Claims 1 to 3, characterized in that in the case of the use of a gas spring (7) for infinitely adjustable locking of the foot plate (1) in various positions, the foot plate (1) has a release (28) with spring (26), which release is to be operated in an articulated manner and has a receptacle (29) for a Bowden cable (30) on its underside, wherein the Bowden cable (30) is fastened at its other end to the release head of the gas spring (7).
  5. The foot rest according to Claims 1 to 3, characterized in that
    in the case of the use of an electric drive (41), this drive has an electric motor (42) which is connected to the threaded spindle (7) via a mechanism (43) and a spindle wheel (46).
  6. The foot rest according to Claims 1 to 3 and 5, characterized in that the electric motor (42), the mechanism (43) and the spindle wheel (46) are integrated in a housing (50).
  7. The foot rest according to Claims 1 to 3 and 5 and 6, characterized in that an extension tube (54) with a rod-end eye (55), which extension tube accommodates the threaded spindle (7), is fastened to the housing (50), wherein the rod-end eye (55) has a drilled hole (56).
  8. The foot rest according to Claims 1 to 7, characterized in that
    the respective construction (24; 25) used for vertically guiding the foot plate (1) is fastened to a rear wall (31).
EP22000006.1A 2021-01-15 2022-01-05 Footrest with height adjustable footplate for guiding a vehicle Active EP4029756B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021000173 2021-01-15

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EP4029756B1 true EP4029756B1 (en) 2023-09-20

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EP (1) EP4029756B1 (en)
DE (1) DE102021005953A1 (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29813118U1 (en) 1998-07-23 1998-10-01 VTD Verkehrstechnik Datteln Stahl- und Maschinenbau GmbH, 45711 Datteln Foot platform for rail vehicles
DE20208987U1 (en) 2002-06-10 2003-05-08 Tever Technik Vertriebs Und Be Height adjustable platform
PL218034B1 (en) 2010-11-03 2014-09-30 Zutmar Spółka Z Ograniczoną Odpowiedzialnością Tram or engine driver's footrest
US8757580B2 (en) 2010-11-09 2014-06-24 Tever Technik GmbH & Co. KG. Height-adjustable pedestal
CA2817403C (en) 2010-11-09 2017-01-31 Tever Technik Vertriebs- Und Beteiligungs-Gmbh & Co. Beratungs Kg Height-adjustable pedestal
DE102012216561B3 (en) 2012-09-17 2013-12-24 GSI Manufaktur GmbH Height-adjustable foot support for rail vehicle, has three housing portions, which cooperate with each other such that foot support is designed in form of self-supporting structure, which is ensured by U-shaped configuration of base housing
PL225463B1 (en) 2013-12-20 2017-04-28 Ec Eng Spółka Z Ograniczoną Odpowiedzialnością Adjustable train or tram driver footrest
PL225516B1 (en) 2013-12-20 2017-04-28 Ec Eng Spółka Z Ograniczoną Odpowiedzialnością Adjustable train or tram driver footrest
PL225552B1 (en) 2013-12-20 2017-04-28 Ec Eng Spółka Z Ograniczoną Odpowiedzialnością Adjustable train or tram driver footrest
ES2776164T3 (en) 2014-01-15 2020-07-29 Siemens Mobility GmbH Footrest and school desk with a footrest
DE202016004888U1 (en) 2016-08-10 2016-10-19 Tever Technik GmbH & Co. KG Pedestal with height-adjustable tread plate for guiding a vehicle, preferably a rail vehicle
CN107901928B (en) 2017-11-08 2020-03-06 中车长春轨道客车股份有限公司 Adjustable driver pedal of urban rail vehicle
DE102018207035A1 (en) 2018-05-07 2019-11-07 Siemens Aktiengesellschaft Modular footboard for a cab of a rail vehicle
CN109278779B (en) 2018-11-30 2019-11-05 中车青岛四方车辆研究所有限公司 Pedal lifting regulating device

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Publication number Publication date
DE102021005953A1 (en) 2022-07-21
EP4029756A1 (en) 2022-07-20

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