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EP3350054B1 - Spring device for receiving lateral forces and railway vehicles comprising a spring device - Google Patents

Spring device for receiving lateral forces and railway vehicles comprising a spring device Download PDF

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Publication number
EP3350054B1
EP3350054B1 EP16750811.8A EP16750811A EP3350054B1 EP 3350054 B1 EP3350054 B1 EP 3350054B1 EP 16750811 A EP16750811 A EP 16750811A EP 3350054 B1 EP3350054 B1 EP 3350054B1
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EP
European Patent Office
Prior art keywords
spring
spring device
unit
elements
spring element
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EP16750811.8A
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German (de)
French (fr)
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EP3350054A1 (en
Inventor
Christoph Alexander Holtgrewe
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Stadler Rail AG
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Stadler Bussnang AG
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Publication of EP3350054A1 publication Critical patent/EP3350054A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/14—Side bearings
    • B61F5/142—Side bearings made of rubber elements, graphite or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
    • B61F5/22—Guiding of the vehicle underframes with respect to the bogies
    • B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes

Definitions

  • the present invention relates to a spring device for absorbing transverse forces between a bogie frame and a car body on a rail vehicle and a rail vehicle comprising such a spring device according to the preamble of the independent claims.
  • the car bodies are mounted on at least one bogie frame and are preferably connected to one another via vertical suspension.
  • Flexible elements in particular transverse spring systems, must therefore be provided for positioning the bogie and the car body with respect to one another.
  • the transverse spring system is an elementary component of the chassis. Its task is to transfer the transverse forces of the car body to the bogie frame when moving around curves; or to limit the transverse path of the box in the event of cross joints caused by deflection of points and track position errors. This ensures that the vehicle remains within a defined clearance profile in every load condition.
  • the EP 1 527 976 A1 shows, for example, a transverse suspension made of a two-part rubber suspension. From the EP 1 610 995 B1 a device has also become known which has a transverse suspension. This lateral suspension can be active or passive. Out WO 2004/089716 A1 a transverse suspension is known.
  • U.S. 6,092,470 A discloses a side support with a stop.
  • the first spring element comprises and in particular consists at least partially of elastic material and preferably of an elastomer.
  • the spring device has a secondary spring unit with at least one second spring element.
  • the second spring element consists at least partially of elastic material and preferably of an elastomer.
  • the first spring element and the secondary spring unit are connected in series.
  • the spring device has at least one stop element for bridging and in particular for limiting the spring travel of the secondary spring unit.
  • the bridging of the secondary spring unit makes it possible that, for example, from a certain spring length or from a certain spring travel, only the spring force of the first spring element acts. This enables a system characteristic that has a kink and can be progressive overall.
  • the series connection enables thereby extending the spring travel over a short distance in a compact unit.
  • the spring device preferably comprises a third spring element.
  • the third spring element can be arranged in series with the first spring element and parallel to the secondary spring device.
  • a graduated spring characteristic with different gradients depending on the spring travel can be provided.
  • the system characteristic is preferably progressive as a whole. That means, the more travel, the harder the suspension.
  • the third spring element is preferably arranged in such a way that, in the unloaded state, it is spaced from a counter-link.
  • the third spring element can therefore only be engaged or brought into engagement from a certain spring travel.
  • the counter link can have a wear element.
  • the wear element also has an elastic material and thus spring properties.
  • the distance between the third spring element and the counter-link can be adjusted by wearing elements of different thicknesses. This enables the second break point to be set in advance. A subsequent adjustment of the spring device is also possible by replacing the wear element.
  • At least one of the spring elements can be designed as a helical spring, a plate spring, a thrust spring or an elastomer spring. A combination of different elements is also possible. Thrust springs are springs that are essentially not subjected to tension or compression, but rather to thrust.
  • the corresponding properties can be incorporated.
  • the spring units can each also consist of several spring elements, which are preferably arranged in parallel.
  • the present spring device preferably comprises a fastening arrangement for fastening the spring device to a frame and / or to a car body.
  • the spring device to be provided as a compact structural unit which, for example, can be exchanged quickly and does not require any further adjustment steps after removal.
  • the fastening arrangement can be designed, for example, as a frame, the frame preferably being in one piece.
  • the frame can be designed as an open frame and have a U-shape.
  • the spring elements are preferably arranged between the legs of the U.
  • Fastening means such as openings or screws can be provided on the fastening arrangement.
  • the first spring element of the spring device and preferably the primary spring unit is preferably mounted on the secondary spring unit of the spring device by means of a bearing. It is particularly conceivable that the bearing is designed as a movable bearing.
  • first spring element is resiliently mounted with the secondary spring unit.
  • the individual spring constants of the first spring element and the secondary spring unit are superimposed.
  • the storage can be designed, for example, as a torsion-resistant holder.
  • the storage can be made of one or more interconnected parts.
  • the interfaces for fastening the second spring elements can be manufactured as individual elements which, in a position according to the invention, extend essentially parallel to the legs of a U-shaped fastening element and are preferably located in the middle of the legs.
  • the secondary spring unit is preferably formed from four spring elements, these spring elements preferably as thrust springs are trained. These four spring elements are particularly preferably arranged in parallel.
  • Thrust springs are characterized by their relatively small size and compact design. This also enables a compact design of the spring device.
  • the spring elements of the secondary spring unit are arranged essentially parallel between the interfaces and the legs of the U-shaped fastening element.
  • the mounting of the first spring element on the secondary spring unit can have an axis of rotation.
  • the first spring element and the third spring element are preferably movably arranged on the axis of rotation. It is conceivable that the first and the third spring element are arranged on a roller which is designed to be rotatable about the axis of rotation.
  • first and the third spring element in one piece, the division into a first and a third spring element resulting from the relative position to the axis of rotation.
  • the first and the third spring element form the primary spring unit and are in particular designed in one piece. Simple production and / or the use of semi-finished products or standard parts is possible.
  • the stop element for bridging the secondary spring element and for limiting the spring travel of the secondary spring unit is preferably arranged on the bearing element.
  • stop elements on the fastening element, these being in operative connection with the bearing element from a certain spring travel.
  • Another aspect of the invention relates to a rail vehicle which comprises a spring device as described here.
  • the spring device is firmly connected to the bogie or the car body of the rail vehicle.
  • the rail vehicle can be delivered as a complete unit, whereby the spring elements can be adjusted and / or pre-assembled according to the requirements. This enables a suspension that is comfortable for the passenger, especially when cornering.
  • the rail vehicle preferably comprises at least two spring devices, the first spring device being able to absorb transverse forces in a first direction and the second spring device being able to absorb transverse forces in a second direction substantially opposite to the first direction.
  • Lateral forces are forces that occur essentially across the direction of travel.
  • the rail vehicle can thus form a self-contained system.
  • Both the bogie and the car body can comprise at least one spring stop surface against which the spring device can be stopped.
  • Figure 1 shows a series of different states during the compression process and thus a sequence of different operating states of a spring device 1 according to the invention.
  • Figure 1a shows a spring device 1 in the unloaded state.
  • the spring device 1 has a first spring element 11, two second spring elements 12 and a third spring element 13.
  • the first spring element 11 and the third spring element 13 form the primary spring unit 2.
  • the two second spring elements 12 form the secondary spring unit 3.
  • the first spring element 11 and the third spring element 13 are arranged on a bearing 21.
  • the stop element 20 is connected via the mounting 21 to the second spring elements 12, which in turn are arranged on the fastening arrangement 30. This means that the stop element 20 interacts with the second spring elements 12 by means of the bearing 21.
  • a counter-link 31 with a wear element 32 there is a counter-link 31 with a wear element 32.
  • the counter-link 31 is shown integrally with the fastening arrangement 30 in the present case.
  • the wear element 32 is arranged directly on the fastening arrangement 30.
  • the wear element 31 defines the point in time / spring travel from which the third spring element 13 comes
  • FIG. 2 shows a perspective view of a spring device 1 according to the invention.
  • the spring elements 11 and 13 are designed as a roller 22 which is fastened with the bearing 21 to four parallel second spring elements 12.
  • the roller 22 thus forms the primary spring unit 2 and the four second spring elements 12 form the secondary spring unit 3.
  • the roller 22 consists of a roller body and an elastomer as a bandage, which the spring elements 11 and 13 form.
  • the second spring elements 12 are arranged so that they act as a thrust spring. They are thus designed as two-part compression springs, which are also made from an elastomer with a sheet metal insert.
  • the second spring elements 12 are arranged on the fastening arrangement 30.
  • the fastening arrangement 30 is in the present case designed as a one-piece U-profile.
  • the counter link 31 is also formed in one piece from the fastening arrangement 30.
  • a stop element 20 extends in the direction of a base plate of the fastening arrangement 30.
  • the bearing is designed in three parts, with a bearing block on each side of the roller 22, which is rotatably supported by means of an axis on which the roller 22 is rotatably supported. are connected to each other.
  • Two spring elements 12 of the secondary spring unit 3 are attached to each bearing block. This results in an essentially symmetrical suspension on the fastening element 30 for the roller 22. In the present case, this is formed in one piece.
  • FIG. 13 shows a cross section along the axis of rotation of the roller 22 Figure 2 .
  • the first spring element 11 and the third spring element 13 are clearly visible in the cross section through the roller 22.
  • a distance a is shown between the lower edge of the third spring element 13 and the counter link 31 with the wear element 32. This can be adjusted, for example, by changing the thickness of the wear element 32.
  • a desired system characteristic can be configured in advance.
  • a distance b is shown between the lower edge of the stop element 20 and the base plate of the fastening arrangement 30. The system characteristic can also be configured in advance using this distance.
  • the roller has a diameter of 160 mm, a size range of, for example, 50 mm to 400 mm being conceivable.
  • the distance b is greater than the distance a. That is, if the bearing 21 moves down, the third spring element 13 first comes into engagement with the counter-link 31. When the bearing 21 moves further down, the stop element 20 comes into engagement with the fastening arrangement 30. Then the second and the third spring element 12 and 13 bridged, only the first spring element 11 continues to deform.
  • the secondary spring unit 3 is formed from four elastomer springs.
  • the primary spring unit 2 with the first and the third spring element 11, 13 also has an elastomer which the spring elements 11 and 13 form.
  • the first and third spring elements 11 and 13 are designed as a roller bandage.
  • a qualitative system characteristic of a device is shown in a force-displacement diagram in Figure 4 shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Description

Die vorliegende Erfindung betrifft eine Federvorrichtung zur Aufnahme von Querkräften zwischen einem Drehgestellrahmen und einem Wagenkasten an einem Schienenfahrzeug sowie eine Schienenfahrzeug umfassend eine derartige Federvorrichtung gemäss dem Oberbegriff der unabhängigen Ansprüche.The present invention relates to a spring device for absorbing transverse forces between a bogie frame and a car body on a rail vehicle and a rail vehicle comprising such a spring device according to the preamble of the independent claims.

In modernen Schienenfahrzeugen sind die Wagenkasten auf zumindest einem Drehgestellrahmen gelagert und vorzugsweise über eine Vertikalfederung miteinander verbunden. Zur Positionierung von Drehgestell und Wagenkasten zueinander müssen daher flexible Elemente vorgesehen werden, insbesondere Querfedersysteme.In modern rail vehicles, the car bodies are mounted on at least one bogie frame and are preferably connected to one another via vertical suspension. Flexible elements, in particular transverse spring systems, must therefore be provided for positioning the bogie and the car body with respect to one another.

Das Querfedersystem ist ein elementares Bauteile des Fahrwerks. Seine Aufgabe ist es, die Querkräfte des Wagenkastens bei Bogenfahrten auf den Drehgestellrahmen zu übertragen; bzw. bei Querstössen durch Weichenablenkungen und Gleislagefehler den Querweg des Kastens zu begrenzen. Damit wird sichergestellt, dass das Fahrzeug in jedem Beladungszustand innerhalb eines definierten Lichtraumprofils bleibt.The transverse spring system is an elementary component of the chassis. Its task is to transfer the transverse forces of the car body to the bogie frame when moving around curves; or to limit the transverse path of the box in the event of cross joints caused by deflection of points and track position errors. This ensures that the vehicle remains within a defined clearance profile in every load condition.

Aus dem Stand der Technik sind verschiedene Arten von Querfederungen bekannt. Die EP 1 527 976 A1 zeigt beispielsweise eine Querfederung aus einer zweiteiligen Gummifederung. Aus der EP 1 610 995 B1 ist ebenfalls eine Vorrichtung bekannt geworden, welche eine Querfederung aufweist. Diese Querfederung kann aktiv oder passiv sein. Aus WO 2004/ 089716 A1 ist eine Querfederung bekannt. US 6 092 470 A offenbart eine Seitenlagerung mit einem Anschlag.Various types of transverse springs are known from the prior art. The EP 1 527 976 A1 shows, for example, a transverse suspension made of a two-part rubber suspension. From the EP 1 610 995 B1 a device has also become known which has a transverse suspension. This lateral suspension can be active or passive. Out WO 2004/089716 A1 a transverse suspension is known. U.S. 6,092,470 A discloses a side support with a stop.

Nachteilig an den Querfederungen aus dem bekannten Stand der Technik ist ihre aufwendige Gestaltung und ihr Platzbedarf. Es ist daher Aufgabe der vorliegenden Erfindung, diese und weitere Nachteile des Standes der Technik zu beheben. Diese Aufgabe wird durch die in den unabhängigen Patentansprüchen definierten Vorrichtungen gelöst. Weitere Ausführungsformen ergeben sich aus den abhängigen Patentansprüchen.Disadvantages of the transverse springs from the known prior art are their complex design and their space requirements. It is therefore the object of the present invention to remedy these and other disadvantages of the prior art. This object is achieved by the devices defined in the independent patent claims. Further embodiments emerge from the dependent claims.

Eine erfindungsgemässe Federvorrichtung zur Aufnahme von Querkräften zwischen einem Drehgestellrahmen und einem Wagenkasten an einem Schienenfahrzeug umfasst zumindest eine primäre Federeinheit mit einem ersten Federelement. Das erste Federelement umfasst und insbesondere besteht zumindest teilweise aus elastischem Material und bevorzugt aus einem Elastomer. Die Federvorrichtung weist eine sekundäre Federeinheit mit mindestens einem zweiten Federelement auf. Das zweite Federelement besteht zumindest teilweise aus elastischem Material und bevorzugt aus einem Elastomer. Das erste Federelement und die sekundäre Federeinheit sind in Serie geschalten. Zur Überbrückung und insbesondere zur Begrenzung des Federweges der sekundären Federeinheit weist die Federvorrichtung wenigstens ein Anschlagelement auf.A spring device according to the invention for absorbing transverse forces between a bogie frame and a car body on a rail vehicle comprises at least one primary spring unit with a first spring element. The first spring element comprises and in particular consists at least partially of elastic material and preferably of an elastomer. The spring device has a secondary spring unit with at least one second spring element. The second spring element consists at least partially of elastic material and preferably of an elastomer. The first spring element and the secondary spring unit are connected in series. The spring device has at least one stop element for bridging and in particular for limiting the spring travel of the secondary spring unit.

Dies ermöglicht das Bereitstellen einer definierten Federkennlinie für die ganze Vorrichtung, folgend Systemkennlinie. Dabei kann sie einen ersten Knickpunkt aufweisen und insbesondere progressiv sein. Insbesondere ist es damit möglich, unterschiedliche Federkennlinien zu kombinieren und die Wirkdistanz für eine bestimmte Federkennlinie zu definieren. Das Überbrücken der sekundären Federeinheit ermöglicht es, dass beispielsweise ab einer bestimmten Federlänge oder ab einem bestimmten Federweg lediglich die Federkraft des ersten Federelementes wirkt. Dies ermöglicht eine Systemkennlinie, welche einen Knick aufweist und dabei gesamthaft progressiv sein kann. Die Serieschaltung ermöglicht dabei die Verlängerung des Federweges auf kurzer Distanz in einer kompakten Einheit.This enables the provision of a defined spring characteristic curve for the entire device, following the system characteristic curve. It can have a first break point and in particular be progressive. In particular, it is possible to combine different spring characteristics and to define the effective distance for a specific spring characteristic. The bridging of the secondary spring unit makes it possible that, for example, from a certain spring length or from a certain spring travel, only the spring force of the first spring element acts. This enables a system characteristic that has a kink and can be progressive overall. The series connection enables thereby extending the spring travel over a short distance in a compact unit.

Vorzugsweise umfasst die Federvorrichtung ein drittes Federelement. Das dritte Federelement kann in Serie zum ersten Federelement und parallel zur sekundären Federvorrichtung angeordnet sein.The spring device preferably comprises a third spring element. The third spring element can be arranged in series with the first spring element and parallel to the secondary spring device.

Dies ermöglicht eine weitere Abstufung der Systemkennlinie mit einem zusätzlichen zweiten Knickpunkt. Somit kann beispielsweise eine abgestufte Federkennlinie mit unterschiedlichen Steigungen je nach Federweg bereitgestellt werden. Vorzugsweise ist die Systemkennlinie gesamthaft progressiv. Das heisst, je mehr Federweg, je härter die Federung.This enables a further gradation of the system characteristic with an additional second break point. Thus, for example, a graduated spring characteristic with different gradients depending on the spring travel can be provided. The system characteristic is preferably progressive as a whole. That means, the more travel, the harder the suspension.

Das dritte Federelement ist vorzugsweise derart angeordnet, dass es im unbelasteten Zustand zu einer Gegenkulisse beabstandet ist. Damit ist das dritte Federelement erst ab einem bestimmten Federweg im Eingriff oder in Eingriff bringbar.The third spring element is preferably arranged in such a way that, in the unloaded state, it is spaced from a counter-link. The third spring element can therefore only be engaged or brought into engagement from a certain spring travel.

Durch die Beabstandung und insbesondere auch durch das vorgängige Einstellen des Abstandes des Federelementes zu der Gegenkulisse können für unterschiedliche Betriebszustände und/oder für unterschiedliche Einsatzorte unterschiedliche Systemkennlinien geschaffen werden.As a result of the spacing and in particular also the prior setting of the distance between the spring element and the counter link, different system characteristics can be created for different operating states and / or for different locations.

Die Gegenkulisse kann ein Verschleisselement aufweisen.The counter link can have a wear element.

Damit ist es möglich, Verschleisserscheinungen an der Feder zu vermeiden. Es wäre ebenfalls vorstellbar, dass das Verschleisselement ebenfalls ein elastisches Material und damit Federeigenschaften aufweist.This makes it possible to avoid wear and tear on the spring. It would also be conceivable that the wear element also has an elastic material and thus spring properties.

Es ist vorstellbar, dass der Abstand zwischen dem dritten Federelement und der Gegenkulisse durch unterschiedlich dicke Verschleisselemente einstellbar ist. Dies ermöglicht ein vorgängiges Einstellen des zweiten Knickpunktes. Eine nachträgliche Justierung der Federvorrichtung ist ebenfalls möglich durch Austausch des Verschleisselementes.It is conceivable that the distance between the third spring element and the counter-link can be adjusted by wearing elements of different thicknesses. This enables the second break point to be set in advance. A subsequent adjustment of the spring device is also possible by replacing the wear element.

Zumindest eines der Federelemente kann als Schraubenfeder, als Tellerfeder, als Schubfeder oder als Elastomerfeder ausgebildet sein. Eine Kombination verschiedener Elemente ist ebenfalls möglich. Schubfedern sind Federn, die im Wesentlichen nicht auf Zug oder Druck beansprucht sind, sondern auf Schub.At least one of the spring elements can be designed as a helical spring, a plate spring, a thrust spring or an elastomer spring. A combination of different elements is also possible. Thrust springs are springs that are essentially not subjected to tension or compression, but rather to thrust.

Je nach ausgewählten Werkstoffen oder ausgewählter Ausbildung des Federelementes können die entsprechenden Eigenschaften eingebracht werden.Depending on the selected materials or the selected design of the spring element, the corresponding properties can be incorporated.

Die Federeinheiten können jeweils auch aus mehreren Federelementen bestehen, welche vorzugsweise parallel angeordnet sind.The spring units can each also consist of several spring elements, which are preferably arranged in parallel.

Dies ermöglicht kompakte Bauformen und weitere Variabilität bei der Festlegung der Federkonstanten.This enables compact designs and further variability in the definition of the spring constants.

Die vorliegende Federvorrichtung umfasst vorzugsweise eine Befestigungsanordnung zum Befestigen der Federvorrichtung an einem Gestell und/oder an einem Wagenkasten.The present spring device preferably comprises a fastening arrangement for fastening the spring device to a frame and / or to a car body.

Dies ermöglicht das Bereitstellen der Federvorrichtung als eine kompakte Baueinheit, welche beispielsweise schnell auswechselbar ist und nach dem Ausbau keine weiteren Schritte zum Einstellen benötigt.This enables the spring device to be provided as a compact structural unit which, for example, can be exchanged quickly and does not require any further adjustment steps after removal.

Die Befestigungsanordnung kann beispielsweise als Rahmen ausgebildet sein, wobei der Rahmen vorzugsweise einstückig ist. Der Rahmen kann als offener Rahmen ausgebildet sein und eine U-Form aufweisen. Dabei sind die Federelemente vorzugsweise zwischen den Schenkeln des U angeordnet. An der Befestigungsanordnung können Befestigungsmittel wie Öffnungen oder Schrauben vorgesehen sein.The fastening arrangement can be designed, for example, as a frame, the frame preferably being in one piece. The frame can be designed as an open frame and have a U-shape. The spring elements are preferably arranged between the legs of the U. Fastening means such as openings or screws can be provided on the fastening arrangement.

Vorzugsweise ist das erste Federelement der Federvorrichtung und bevorzugt die primäre Federeinheit auf der sekundären Federeinheit der Federvorrichtung mittels einer Lagerung gelagert. Es ist dabei insbesondere vorstellbar, dass die Lagerung als bewegliche Lagerung ausgeführt ist.The first spring element of the spring device and preferably the primary spring unit is preferably mounted on the secondary spring unit of the spring device by means of a bearing. It is particularly conceivable that the bearing is designed as a movable bearing.

Dies ermöglicht, die Federwege in Abhängigkeit zueinander zu bringen. Das heisst, ein erstes Federelement ist mit der sekundären Federeinheit federnd gelagert. Dabei sind die einzelnen Federkonstanten des ersten Federelementes und der sekundären Federeinheit überlagert.This enables the spring travel to be related to one another. This means that a first spring element is resiliently mounted with the secondary spring unit. The individual spring constants of the first spring element and the secondary spring unit are superimposed.

Dabei ist es vorstellbar, die Lagerung mit Schnittstellen zur Befestigung der zweiten Federelemente zu versehen. Dabei kann die Lagerung beispielsweise als verwindungsteife Halterung ausgeführt sein. Die Lagerung kann dabei aus einem oder mehreren miteinander verbunden Teilen gefertigt sein. Die Schnittstellen zur Befestigung der zweiten Federelemente können als einzelne Elemente gefertigt sein, welche sich in einer erfindungsgemässen Lage im Wesentlichen parallel der Schenkel eines U-förmigen Befestigungselementes erstrecken und sich vorzugsweise mittig der Schenkel befinden.It is conceivable to provide the mounting with interfaces for fastening the second spring elements. The storage can be designed, for example, as a torsion-resistant holder. The storage can be made of one or more interconnected parts. The interfaces for fastening the second spring elements can be manufactured as individual elements which, in a position according to the invention, extend essentially parallel to the legs of a U-shaped fastening element and are preferably located in the middle of the legs.

Bevorzugt ist die sekundäre Federeinheit aus vier Federelementen gebildet, wobei diese Federelemente vorzugsweise als Schubfedern ausgebildet sind. Besonders bevorzugt sind diese vier Federelemente parallel angeordnet.The secondary spring unit is preferably formed from four spring elements, these spring elements preferably as thrust springs are trained. These four spring elements are particularly preferably arranged in parallel.

Dies ermöglicht eine geometrisch einfache und günstige Anordnung und eine gleichmässige und insbesondere symmetrische Kraftverteilung. Schubfedern zeichnen sich durch eine relativ geringe Baugrösse und eine kompakte Bauform aus. Dies ermöglicht somit ebenfalls eine kompakte Bauform der Federvorrichtung.This enables a geometrically simple and favorable arrangement and a uniform and, in particular, symmetrical force distribution. Thrust springs are characterized by their relatively small size and compact design. This also enables a compact design of the spring device.

Dabei ist es vorstellbar, dass die Federelemente der sekundären Federeinheit zwischen den Schnittstellen und den Schenkeln des U-förmigen Befestigungselementes im Wesentlichen parallel angeordnet sind.It is conceivable that the spring elements of the secondary spring unit are arranged essentially parallel between the interfaces and the legs of the U-shaped fastening element.

Eine Belastung der Federelemente auf Schub ist damit möglich.A load on the spring elements in thrust is thus possible.

Die Lagerung des ersten Federelementes auf der sekundären Federeinheit kann eine Drehachse aufweisen. Vorzugsweise sind dabei das erste Federelement und das dritte Federelement an der Drehachse beweglich angeordnet. Dabei ist es vorstellbar, dass das erste und das dritte Federelement an einer Rolle angeordnet sind, welche um die Drehachse drehbar ausgebildet ist.The mounting of the first spring element on the secondary spring unit can have an axis of rotation. The first spring element and the third spring element are preferably movably arranged on the axis of rotation. It is conceivable that the first and the third spring element are arranged on a roller which is designed to be rotatable about the axis of rotation.

Damit ist es möglich, das erste und das dritte Federelement einstückig zu fertigen, wobei sich die Unterteilung in eine erstes und ein drittes Federelement durch die relative Position zur Drehachse ergibt.It is thus possible to manufacture the first and the third spring element in one piece, the division into a first and a third spring element resulting from the relative position to the axis of rotation.

Eine leichte und einfache Fertigung ist möglich. Austausch- und Wartungshäufigkeit der Federelemente verringert sich, und durch die Anordnung an einer Drehachse und daher durch die Möglichkeit, dass sich die Rolle drehen kann, wird der Verschleiss verringert. Die Standzeiten können erhöht werden. Ungünstige oder ungewollte Querkräfte können somit ebenfalls vermieden oder zumindest verringert werden.An easy and simple production is possible. The frequency of replacement and maintenance of the spring elements is reduced, and the arrangement on an axis of rotation and therefore the possibility that the roller can rotate, the wear is reduced. The service life can be increased. Unfavorable or unwanted transverse forces can thus also be avoided or at least reduced.

Bei einem mehrteiligen Aufbau des Lagerelementes kann es vorgesehen sein, eine erste und eine zweite Schnittstelle bereitzustellen, welche mit einer Achse miteinander verbunden sind.In the case of a multi-part construction of the bearing element, provision can be made to provide a first and a second interface which are connected to one another by an axle.

Das erste und das dritte Federelement bilden dabei die primäre Federeinheit und sind insbesondere einstückig ausgebildet. Eine einfache Fertigung und/oder der Einsatz von Halbfabrikaten oder Normteilen ist möglich.The first and the third spring element form the primary spring unit and are in particular designed in one piece. Simple production and / or the use of semi-finished products or standard parts is possible.

Das Anschlagelement zur Überbrückung des sekundären Federelementes und zur Begrenzung des Federweges der sekundären Federeinheit ist vorzugsweise am Lagerelement angeordnet.The stop element for bridging the secondary spring element and for limiting the spring travel of the secondary spring unit is preferably arranged on the bearing element.

Dies ermöglicht eine stabile Fixierung des Lagerelementes und damit eine stabile Lagerung der primären Federeinheit ab dem Zeitpunkt, an dem die sekundäre Federeinheit überbrückt ist und nur noch das erste Federelement der primären Federeinheit wirkt. Dies ermöglicht in Abhängigkeit vom Federweg einen definierten Zustand. Eine Überlastung der zweiten Federelemente kann damit verhindert werden. Ausserdem kann eine Systemkennlinie mit einem Knick bereitgestellt werden.This enables a stable fixation of the bearing element and thus a stable mounting of the primary spring unit from the point in time at which the secondary spring unit is bridged and only the first spring element of the primary spring unit is still effective. This enables a defined state depending on the spring travel. Overloading of the second spring elements can thus be prevented. A system characteristic curve with a kink can also be provided.

Es wäre ebenfalls vorstellbar, die Anschlagelemente am Befestigungselement anzuordnen, wobei diese ab einem bestimmten Federweg mit dem Lagerelement in Wirkverbindung sind.It would also be conceivable to arrange the stop elements on the fastening element, these being in operative connection with the bearing element from a certain spring travel.

Ein weiterer Aspekt der Erfindung betrifft ein Schienenfahrzeug welches eine Federvorrichtung wie vorliegend beschrieben umfasst. Die Federvorrichtung ist mit dem Drehgestell oder dem Wagenkasten des Schienenfahrzeuges fest verbunden.Another aspect of the invention relates to a rail vehicle which comprises a spring device as described here. The spring device is firmly connected to the bogie or the car body of the rail vehicle.

Das Schienenfahrzeug kann als komplette Einheit ausgeliefert werden, wobei die Federelemente entsprechend den Anforderungen eingestellt werden können und/oder vorkonfektioniert sind. Dies ermöglicht eine für den Fahrgast komfortable Federung, insbesondere bei Kurvenfahrten.The rail vehicle can be delivered as a complete unit, whereby the spring elements can be adjusted and / or pre-assembled according to the requirements. This enables a suspension that is comfortable for the passenger, especially when cornering.

Vorzugsweise umfasst das Schienenfahrzeug mindestens zwei Federvorrichtungen, wobei durch die erste Federvorrichtung Querkräfte in einer ersten Richtung aufnehmbar sind und durch die zweite Federvorrichtung Querkräfte in einer zweiten, der ersten Richtung im Wesentlichen entgegengesetzten Richtung, aufnehmbar sind.The rail vehicle preferably comprises at least two spring devices, the first spring device being able to absorb transverse forces in a first direction and the second spring device being able to absorb transverse forces in a second direction substantially opposite to the first direction.

Querkräfte sind Kräfte, welche im Wesentlichen Quer zur Fahrtrichtung auftreten.Lateral forces are forces that occur essentially across the direction of travel.

Das Schienenfahrzeug kann somit ein in sich geschlossenes System bilden.The rail vehicle can thus form a self-contained system.

Sowohl das Drehgestell als auch der Wagenkasten können zumindest eine Federanschlagsfläche umfassen, an die die Federvorrichtung anschlagbar ist.Both the bogie and the car body can comprise at least one spring stop surface against which the spring device can be stopped.

Die folgenden Figuren zeigen ein erstes Ausführungsbeispiel einer erfindungsgemässen Vorrichtung.

Figur 1:
zeigt schematisch eine Serie verschiedener Zustände während des Einfederungsvorganges an einer erfindungsgemässen Federvorrichtung.
Figur 2:
zeigt eine dreidimensionale Ansicht einer erfindungsgemässen Federvorrichtung.
Figur 3:
zeigt eine Schnittansicht entlang der Drehachse.
Figur 4:
zeigt eine qualitative Systemkennlinie.
The following figures show a first embodiment of a device according to the invention.
Figure 1:
shows schematically a series of different states during the compression process on a spring device according to the invention.
Figure 2:
shows a three-dimensional view of a spring device according to the invention.
Figure 3:
shows a sectional view along the axis of rotation.
Figure 4:
shows a qualitative system characteristic.

Figur 1 zeigt eine Serie verschiedener Zustände während des Einfederungsvorganges und damit eine Abfolge von unterschiedlichen Betriebszuständen einer erfindungsgemässen Federvorrichtung 1. Figure 1 shows a series of different states during the compression process and thus a sequence of different operating states of a spring device 1 according to the invention.

Zur besseren Übersicht sind lediglich in Figur 1 alle Elemente bezeichnet, in den weiteren Figuren lediglich die relevanten Bezugszeichen gezeigt.For a better overview, only in Figure 1 denotes all elements, only the relevant reference numerals are shown in the further figures.

Figur 1a zeigt eine Federvorrichtung 1 in unbelastetem Zustand. Die Federvorrichtung 1 weist ein erstes Federelement 11, zwei zweite Federelemente 12 sowie ein drittes Federelement 13 auf. Das erste Federelement 11 und das dritte Federelement 13 bilden die primäre Federeinheit 2. Die zwei zweiten Federelemente 12 bilden die sekundäre Federeinheit 3. Das erste Federelement 11 und das dritte Federelement 13 sind an einer Lagerung 21 angeordnet. An der Lagerung 21 befinden sich zwei Anschlagelemente 20. Das Anschlagelement 20 ist über die Lagerung 21 mit den zweiten Federelementen 12 verbunden, welche wiederum auf der Befestigungsanordnung 30 angeordnet sind. Das heisst, mittels der Lagerung 21 wirkt das Anschlagelement 20 mit den zweiten Federelementen 12 zusammen. Gemäss der Figur 1a unterhalb des dritten Federelementes 13 befindet sich eine Gegenkulisse 31 mit einem Verschleisselement 32. Die Gegenkulisse 31 ist vorliegend integral mit der Befestigungsanordnung 30 gezeigt. Das Verschleisselement 32 ist direkt an der Befestigungsanordnung 30 angeordnet. Das Verschleisselement 31 definiert, ab welchem Zeitpunkt / Federweg das dritte Federelement 13 in Eingriff kommt. Figure 1a shows a spring device 1 in the unloaded state. The spring device 1 has a first spring element 11, two second spring elements 12 and a third spring element 13. The first spring element 11 and the third spring element 13 form the primary spring unit 2. The two second spring elements 12 form the secondary spring unit 3. The first spring element 11 and the third spring element 13 are arranged on a bearing 21. There are two stop elements 20 on the mounting 21. The stop element 20 is connected via the mounting 21 to the second spring elements 12, which in turn are arranged on the fastening arrangement 30. This means that the stop element 20 interacts with the second spring elements 12 by means of the bearing 21. According to the Figure 1a Below the third spring element 13 there is a counter-link 31 with a wear element 32. The counter-link 31 is shown integrally with the fastening arrangement 30 in the present case. The wear element 32 is arranged directly on the fastening arrangement 30. The wear element 31 defines the point in time / spring travel from which the third spring element 13 comes into engagement.

Wirkt nun eine Kraft F auf die Federvorrichtung ein (Figur 1b) so wird zuerst das erste Federelement 11 und in Serie dazu das zweite Federelement 12 gedrückt. Durch die unterschiedlichen Eigenschaften der einzelnen Federelemente 11 und 12 entsteht eine gemeinsame Federkonstante. Das zweite Federelement 12 wird dabei zusammengedrückt. Der Angriffspunkt des ersten Federelementes 11 und damit die Lagerung 21 verschiebt sich dabei entsprechend des Federweges des zweiten Federelementes 12. Die Federkonstante von in Serie geschalteten Federn ist naturgemäss kleiner als von einzelnen Federn. Die Systemkonstante ist für diesen Fall eher flach.If a force F now acts on the spring device ( Figure 1b ) first the first spring element 11 and in series with the second spring element 12 is pressed. The different properties of the individual spring elements 11 and 12 result in a common spring constant. The second spring element 12 is thereby compressed. The point of application of the first spring element 11 and thus the bearing 21 shifts according to the spring travel of the second spring element 12. The spring constant of springs connected in series is naturally smaller than that of individual springs. The system constant is rather flat in this case.

Wird die Kraft F grösser (Figur 1c) so kommt das dritte Federelement 13 in Eingriff mit der Gegenkulisse 31, da sich die Lagerung 21 in Kraftrichtung verschiebt. Damit wirkt nun das zweite und das dritte Federelement 12 und 13 parallel und diese zusammen in Serie zum ersten Federelement 11. Die Parallelschaltung erhöht die Federkonstante. Die Systemkonstante wird für diesen Bereich steiler.If the force F increases ( Figure 1c ) so the third spring element 13 comes into engagement with the counter link 31, since the bearing 21 shifts in the direction of force. The second and third spring elements 12 and 13 thus now act in parallel and they work together in series with the first spring element 11. The parallel connection increases the spring constant. The system constant becomes steeper for this area.

Wenn die Kraft F noch grösser wird (Figur 1d) so kommen die Anschlagelemente 20 in Kontakt mit der Befestigungsanordnung 30. Das zweite und dritte Federelement 12 und 13 sind damit überbrückt. Sämtliche Kraft wird durch das erste Federelement 11 aufgenommen. Aus dieser Abfolge ergibt sich eine immer steiler werdende Kurve für die Federkonstante und daher eine progressive Systemkonstante.If the force F becomes even greater ( Figure 1d ) The stop elements 20 come into contact with the fastening arrangement 30. The second and third spring elements 12 and 13 are thus bridged. All the force is absorbed by the first spring element 11. This sequence results in an increasingly steep curve for the spring constant and therefore a progressive system constant.

Figur 2 zeigt eine perspektivische Ansicht einer erfindungsgemässen Federvorrichtung 1. Die Federelemente 11 und 13 sind vorliegend als eine Rolle 22 ausgebildet, welche mit der Lagerung 21 an vier parallelen zweiten Federelementen 12 befestigt ist. Die Rolle 22 bildet somit die primäre Federeinheit 2 und die vier zweiten Federelemente 12 bilden die sekundäre Federeinheit 3. Die Rolle 22 besteht aus einem Rollenkörper und aus einem Elastomer als Bandage, welche die Federelemente 11 und 13 bilden. Die zweiten Federelemente 12 sind so angeordnet, dass sie als Schubfeder wirken. Sie sind somit als zweiteilige Schubfedern ausgebildet, welche ebenfalls aus einem Elastomer mit Blecheinlage gefertigt sind. Die zweiten Federelemente 12 sind an der Befestigungsanordnung 30 angeordnet. Die Befestigungsanordnung 30 ist vorliegend als einstückiges U-Profil ausgebildet. Wie aus der Figur 3 ersichtlich, ist die Gegenkulisse 31 ebenfalls einstückig aus der Befestigungsanordnung 30 ausgebildet. An der Lagerung 21 erstreckt sich ein Anschlagelement 20 in Richtung einer Bodenplatte der Befestigungsanordnung 30. Die Lagerung ist dreiteilig ausgeführt, wobei sich auf beiden Seiten der Rolle 22 je ein Lagerbock befindet, die mittels einer Achse, auf der die Rolle 22 drehbar gelagert ist, miteinander verbunden sind. An jedem Lagerbock sind zwei Federelemente 12 der sekundären Federeinheit 3 befestigt. Damit ergibt sich für die Rolle 22 eine im Wesentlichen symmetrische Aufhängung am Befestigungselement 30. Dieses ist vorliegend einstückig ausgebildet. Figure 2 shows a perspective view of a spring device 1 according to the invention. In the present case, the spring elements 11 and 13 are designed as a roller 22 which is fastened with the bearing 21 to four parallel second spring elements 12. The roller 22 thus forms the primary spring unit 2 and the four second spring elements 12 form the secondary spring unit 3. The roller 22 consists of a roller body and an elastomer as a bandage, which the spring elements 11 and 13 form. The second spring elements 12 are arranged so that they act as a thrust spring. They are thus designed as two-part compression springs, which are also made from an elastomer with a sheet metal insert. The second spring elements 12 are arranged on the fastening arrangement 30. The fastening arrangement 30 is in the present case designed as a one-piece U-profile. As from the Figure 3 As can be seen, the counter link 31 is also formed in one piece from the fastening arrangement 30. On the bearing 21, a stop element 20 extends in the direction of a base plate of the fastening arrangement 30. The bearing is designed in three parts, with a bearing block on each side of the roller 22, which is rotatably supported by means of an axis on which the roller 22 is rotatably supported. are connected to each other. Two spring elements 12 of the secondary spring unit 3 are attached to each bearing block. This results in an essentially symmetrical suspension on the fastening element 30 for the roller 22. In the present case, this is formed in one piece.

Figur 3 zeigt einen Querschnitt entlang der Drehachse der Rolle 22 aus Figur 2. Im Querschnitt durch die Rolle 22 ist das erste Federelement 11 und das dritte Federelement 13 deutlich sichtbar. Zwischen der Unterkante des dritten Federelementes 13 und der Gegenkulisse 31 mit dem Verschleisselement 32 ist ein Abstand a eingezeichnet. Dieser ist beispielsweise durch Verändern der Dicke des Verschleisselementes 32 einstellbar. Eine gewünschte Systemkennlinie kann vorab konfiguriert werden. Zwischen der Unterkante des Anschlagelementes 20 und der Bodenplatte der Befestigungsanordnung 30 ist ein Abstand b eingezeichnet. Über diesen Abstand kann ebenfalls die Systemkennlinie vorab konfiguriert werden. Figure 3 FIG. 13 shows a cross section along the axis of rotation of the roller 22 Figure 2 . The first spring element 11 and the third spring element 13 are clearly visible in the cross section through the roller 22. A distance a is shown between the lower edge of the third spring element 13 and the counter link 31 with the wear element 32. This can be adjusted, for example, by changing the thickness of the wear element 32. A desired system characteristic can be configured in advance. A distance b is shown between the lower edge of the stop element 20 and the base plate of the fastening arrangement 30. The system characteristic can also be configured in advance using this distance.

Im Ausführungsbeispiel aus den Figuren 2 und 3 weist die Rolle einen Durchmesser von 160mm auf, wobei ein Grössenbereich von beispielsweise 50mm bis 400mm vorstellbar ist. Der Abstand b ist vorliegend grösser als der Abstand a. Das heisst, bewegt sich die Lagerung 21 nach unten kommt zuerst das dritte Federelement 13 in Eingriff mit der Gegenkulisse 31. Wenn sich die Lagerung 21 weiter nach unten bewegt, kommt das Anschlagelement 20 in Eingriff mit der Befestigungsanordnung 30. Dann sind das zweite und das dritte Federelement 12 und 13 überbrückt, lediglich das erste Federelement 11 verformt sich weiter.In the embodiment from the Figures 2 and 3 the roller has a diameter of 160 mm, a size range of, for example, 50 mm to 400 mm being conceivable. In the present case, the distance b is greater than the distance a. That is, if the bearing 21 moves down, the third spring element 13 first comes into engagement with the counter-link 31. When the bearing 21 moves further down, the stop element 20 comes into engagement with the fastening arrangement 30. Then the second and the third spring element 12 and 13 bridged, only the first spring element 11 continues to deform.

Im Ausführungsmodell nach den Figuren 2 und 3 ist die sekundäre Federeinheit 3 aus vier Elastomerfedern ausgebildet. Die primäre Federeinheit 2 mit dem ersten und dem dritten Federelement 11, 13 weist ebenfalls ein Elastomer auf, welches die Federelemente 11 und 13 bilden. Das erste und das dritte Federelement 11 und 13 sind als Rollenbandage ausgebildet.In the execution model according to the Figures 2 and 3 the secondary spring unit 3 is formed from four elastomer springs. The primary spring unit 2 with the first and the third spring element 11, 13 also has an elastomer which the spring elements 11 and 13 form. The first and third spring elements 11 and 13 are designed as a roller bandage.

Eine qualitative Systemkennlinie einer Vorrichtung ist in einem Kraft- Weg- Diagramm in Figur 4 gezeigt. Deutlich erkennbar sind die zwei Knicke an den Punkten, an denen zuerst das dritte Federelement 13 mit der Gegenkulisse in Eingriff komm, P1, und an der Stelle, an der das Anschlagelement 20 mit der Befestigungsanordnung in Eingriff kommt, P2.A qualitative system characteristic of a device is shown in a force-displacement diagram in Figure 4 shown. The two kinks at the points at which the third spring element 13 first comes into engagement with the counter-link, P1, and at the point at which the stop element 20 comes into engagement with the fastening arrangement, P2, are clearly visible.

Claims (15)

  1. Spring device (1) for absorbing transverse forces between a bogie frame and a car body on a rail vehicle, comprising a primary spring unit (2) with a first spring element (11), which at least partly consists of or comprises an elastic material, preferably an elastomer, a secondary spring unit (3) with at least one second spring element (12) which is at least partly made of or comprises an elastic material, preferably an elastomer, characterized in that the first spring element (11) and the secondary spring unit (3) are connected in series and the spring device (1) has at least one stop element (20) for bridging the secondary spring unit and in particular for limiting the spring deflection of the secondary spring unit(3).
  2. Spring device (1) according to claim 1, comprising a third spring element (13) which is preferably arranged in series with the first spring element (11) and parallel to the secondary spring device (3).
  3. Spring device (1) according to claim 2, characterized in that the third spring element (13) is arranged at a distance from a counter link (31) in the unloaded state, so that the third spring element (13) engages or can be brought into engagement only from a certain spring deflection.
  4. A spring device (1) according to claim 3, wherein the counter link (31) has a wear element (32)
  5. Spring device (1) according to one of claims 1 to 4, characterized in that at least one of the spring elements (11, 12, 13) is designed as a thrust spring or helical spring or disc spring.
  6. Spring device (1) according to one of claims 1 to 4, characterized in that at least one of the spring elements (11, 12, 13) is designed as an elastomer spring.
  7. Spring device (1) according to one of claims 1 to 6, characterized in that at least one spring unit (2, 3) is made of several spring elements arranged in parallel.
  8. A spring device (1) according to any one of claims 1 to 7 comprising an attachment arrangement (30) for attaching the spring device to a bogie or a car body.
  9. Spring device (1) according to one of the preceding claims, characterized in that the first spring element (11), preferably the primary spring unit (2), is mounted on the secondary spring unit (3) by a bearing (21).
  10. Spring device (1) according to one of the claims 1 to 9, characterized in that the secondary spring unit (3) is formed from four spring elements, the spring elements preferably being designed as thrust springs.
  11. Spring device (1) according to claim 9 or 10, characterized in that the bearing (21) has an axis of rotation, the first spring element (11) and the third spring element (13) being movably arranged on the axis of rotation (21) and being arranged in particular on a roll (22) which is designed to be rotatable about the axis of rotation.
  12. Spring device (1) according to one of claims 1 to 11, characterized in that the first spring element (11) and the third spring element (13) form the primary spring unit and in particular are formed in one piece.
  13. A rail vehicle comprising a spring device (1) according to one of claims 1 to 12, wherein the spring device is designed to be fixedly connected to the bogie or to the car body.
  14. Rail vehicle according to claim 13, comprising two spring devices, wherein transverse forces in a first direction can be absorbed by the first spring device and transverse forces in a second direction opposite to the first direction can be absorbed by the second spring device.
  15. A rail vehicle according to one of claims 13 or 14, characterized in that the bogie or the car body comprises at least one spring stop surface to which the spring device can be attached.
EP16750811.8A 2015-09-17 2016-08-09 Spring device for receiving lateral forces and railway vehicles comprising a spring device Active EP3350054B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15185610.1A EP3144200A1 (en) 2015-09-17 2015-09-17 Spring device for receiving lateral forces and railway vehicles comprising a spring device
PCT/EP2016/068939 WO2017045844A1 (en) 2015-09-17 2016-08-09 Spring device for absorbing transverse forces and rail vehicles comprising a spring device

Publications (2)

Publication Number Publication Date
EP3350054A1 EP3350054A1 (en) 2018-07-25
EP3350054B1 true EP3350054B1 (en) 2020-12-02

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ID=54150283

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15185610.1A Withdrawn EP3144200A1 (en) 2015-09-17 2015-09-17 Spring device for receiving lateral forces and railway vehicles comprising a spring device
EP16750811.8A Active EP3350054B1 (en) 2015-09-17 2016-08-09 Spring device for receiving lateral forces and railway vehicles comprising a spring device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15185610.1A Withdrawn EP3144200A1 (en) 2015-09-17 2015-09-17 Spring device for receiving lateral forces and railway vehicles comprising a spring device

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WO (1) WO2017045844A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788250A (en) * 1953-03-11 1957-04-09 Symington Gould Corp Resilient side bearing
US3961584A (en) * 1971-10-14 1976-06-08 Hamilton Neil King Paton Railway car truck
US4998997A (en) * 1989-02-15 1991-03-12 Miner Enterprises, Inc. Side bearing unit for railroad car
US6092470A (en) * 1998-12-03 2000-07-25 Miner Enterprises, Inc. Railroad car side bearing with thermal insulator
DE10316497A1 (en) 2003-04-09 2005-01-05 Bombardier Transportation Gmbh Chassis for a rail vehicle with improved transverse suspension
JP2005132127A (en) 2003-10-28 2005-05-26 Hitachi Ltd Rolling stock, and bogie therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
EP3350054A1 (en) 2018-07-25
EP3144200A1 (en) 2017-03-22
WO2017045844A1 (en) 2017-03-23

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