EP4326596A1 - ZUG- UND STOßEINRICHTUNG FÜR EINE ZUGKUPPLUNG UND ZUGKUPPLUNG - Google Patents
ZUG- UND STOßEINRICHTUNG FÜR EINE ZUGKUPPLUNG UND ZUGKUPPLUNGInfo
- Publication number
- EP4326596A1 EP4326596A1 EP22723349.1A EP22723349A EP4326596A1 EP 4326596 A1 EP4326596 A1 EP 4326596A1 EP 22723349 A EP22723349 A EP 22723349A EP 4326596 A1 EP4326596 A1 EP 4326596A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- damper
- draw
- connection
- compression spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
- B61G9/06—Draw-gear combined with buffing appliances with rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
- B61G9/08—Draw-gear combined with buffing appliances with fluid springs or fluid shock-absorbers; Combinations thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/12—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill
- B61G9/14—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill with rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/12—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill
- B61G9/16—Continuous draw-gear combined with buffing appliances, e.g. incorporated in a centre sill with fluid springs or fluid shock-absorbers; Combinations thereof
Definitions
- the present invention relates to a draw and buffing device for a train coupling, in particular a central buffer coupling, and a train coupling with such a draw and buffing device.
- Generic pulling and buffing devices are used in train couplings in order to cushion train shocks and pressure shocks. They have a spring device that transmits tensile forces and compressive forces between opposite first and second connections of the draw and buffer device.
- DE 20 2004 014 532 U1 discloses a spring mechanism installation box with a spring mechanism that is articulated on the one hand to a coupling arm and on the other hand to an installation box screwed to a stop plate of the vehicle with screws, with compressive forces being transmitted via a tension/pressure piece, a spring, a rear plate and a housing to which the compression stops are transmitted to the vehicle, and tensile forces are transmitted to the compression stops via a pivot pin, the housing, the back plate, the spring, and the tension-compression piece.
- the single spring transmits tensile and compressive forces.
- a disadvantage of a draw and buffer device of the type shown with one or more springs that are subjected to the full tensile force and compressive force in both axial directions is the load change with a zero crossing in the spring, which has an unfavorable effect on the tensile dynamics.
- the spring deflection cannot be changed without changing the spring characteristics, which makes it difficult to install such spring mechanism installation boxes in different train couplings, since additional spacers must be provided for a comparatively large installation space in order to introduce the compressive forces into the car structure. This is associated with effort and additional weight of the draw and buffing gear.
- a generic pulling and buffering device is disclosed in US Pat. No. 3,031,089 A, for example.
- This comprises a spring device with a hydraulic displacement damper and with at least one compression spring, wherein, according to a first embodiment, the hydraulic damper absorbs pressure surges and the compression spring cushions tension surges.
- a second compression spring is provided in the power flow parallel to the hydraulic damper and parallel to the first compression spring, which cushions pressure surges and tension surges.
- two compression springs are arranged parallel to one another in the power flow, which absorb tensile shocks, combined with a hydraulic damper which dampens pressure shocks.
- the hydraulic damper includes an internal return spring that returns a piston rod of the damper after a pressure surge. The hydraulic damper only dampens pressure surges.
- a disadvantage of the draw and buffer device according to US Pat. No. 3,031,089 A is that it requires a considerable amount of axial space and pressure surges are essentially only dampened by the hydraulic damper because the compression spring, which may be arranged in parallel, has a comparatively small spring stroke. Since the damping effect of the hydraulic damper is dependent on mass and speed, there is hardly any damping at low speeds in the first and third embodiments.
- the draw and buffing gear will always buffer the full flow in the compression direction under quasi-static loads, which is associated with corresponding mechanical loads. Furthermore, when there is a load change, there are hard metallic stops that lead to noise and wear. Furthermore, various stop surfaces arranged at a distance one behind the other must be aligned with one another in order to ensure proper functioning.
- US 3 556 311 A discloses the combination of rubber buffers with an air damper.
- US 3 854 596 A discloses the combination of a hydraulic damper and elastomeric buffers.
- U1 discloses a spring mechanism installation box with a spring mechanism which is articulated on the one hand to a coupling arm and on the other hand to an installation box which is screwed to a stop plate of the vehicle with screws, with compressive forces being transmitted via a tension/pressure piece, a spring, a rear plate and a housing is transmitted to the compression stops to the vehicle and tensile forces are transmitted to the compression stops via a pivot pin, the housing, the back plate, the spring and the tension-compression piece.
- WO 2013/040119 A1 discloses the combination of an elastomer part with friction damping for a draw and buffer device of a train coupling.
- a pressure plate is provided at both ends of a stack of elastomer elements, so that pressure forces are transmitted over the entire elastomer stack both in the direction of tension and in the direction of compression.
- the spring deflection is therefore identical in both axial directions and the draw and buffer device must be supplemented with spacers or the like when installed in different environments.
- EP 1 225 114 B1 discloses a pulling and buffering device for a central buffer coupling, in which a coupling arm or coupling shaft is supported by a joint on a pivot bolt, with the tensile force being transmitted via the pivot bolt, an upper chord, a lower chord, an end plate, a play suspension on the tension side, a stop plate and transmits a spring system to a pressure plate, which is supported against vehicle-side cable stops.
- the coupling shaft transfers the pressure force via a joint play absorber without play to the pivot pin, which is supported on the pressure plate, whereby the pressure plate compresses the spring system and transmits the pressure forces via the stop plate against the pressure stops on the vehicle.
- WO 2016/026708 A1 discloses a pull and buffer device for a train coupling with a reversible and an irreversible energy absorption device.
- the energy dissipation device with irreversible energy consumption is connected in series with the reversible energy dissipation device, the energy dissipation device with irreversible energy consumption being irreversibly deformed or destroyed when a predefined maximum tensile/impact force is exceeded.
- EP 1 732 798 B1 discloses a long flow, heavy duty friction clutch hitch assembly for absorbing both trailer and train loads applied to a center sill member of a rail vehicle during train formation and rail operation of the train formation, having a friction clutch mechanism with distinct pairs of plate members and a wedge member to absorb thermal energy generated during closing of the friction clutch tractor assembly.
- US Pat. No. 3,150,782 A discloses a pulling and buffering device for a traction coupling, in which a hydraulic damper is connected in parallel to a large number of compression springs in order to simultaneously cushion tensile and impact forces with the compression springs and the damper.
- US 3368698 A discloses a pulling and buffering device for a train coupling, in which a hydraulic damper is parallel to a plurality of compression springs in the Force flow is arranged, also with an additional return spring, which acts on the damper housing to reset the draw and buffer device in its original position.
- US Pat. No. 3,447,693 A discloses a generic draw and buffer device for a drawbar coupling with the features summarized in the preamble of claim 1.
- a hydraulic damper is arranged in parallel with a plurality of compression springs within a friction damping device.
- a compression spring is positioned between a cup-shaped ram and a bottom of the housing forming the damping chamber to urge the ram to its fully extended position.
- compression springs and dampers are connected in parallel in order to achieve a correspondingly large equivalent spring constant.
- the equivalent spring constant is the spring constant of the entire spring device with the compression springs and the damper. Springs connected in series with the damper also compress at the same time as the damper.
- a disadvantage of the known embodiments is that in practice the sealing system of the damper usually determines the service life of the draw and buffer device because this is the first to fail. Furthermore, the metal compression springs used are comparatively stiff and are, however, subject to a setting behavior, which leads to a change in the spring constant over time.
- the present invention is based on the object of specifying a draw and buffing device for a train coupling, in particular a central buffer coupling, which is characterized by a particularly long service life, the spring constant of which remains as unchanged as possible over the service life and which can be produced inexpensively and easily in different installation spaces can also be used without additional spacers.
- the object according to the invention is achieved by a draw and buffer device for a train coupling, in particular a central buffer coupling, with the features of claim 1.
- the dependent claims describe advantageous and particularly expedient refinements of the invention.
- a draw and buffing device for a train coupling, which is suitable for a coupling for mechanically coupling two carriages of a rail vehicle, which is particularly suitable for a central buffer coupling, but can also be used in a side buffer, for example as a long spring mechanism in a side buffer, is characterized by a small housing, low weight and easy adaptability to different installation spaces, without having to provide comparatively heavy spacers.
- the housing described below and optionally other components of the draw and buffer device can be produced from sheet metal parts, which can be produced, for example, by stamping or flame cutting.
- a hydraulic and/or pneumatic damper and a compression spring preferably a polymer spring
- the combination of spring and damper being designed in such a way that the compression spring absorbs the large proportion of small strokes and traction forces, while the damper only absorbs a correspondingly high preload at is effective with larger forces, the sealing system of the damper is protected because the majority of the strokes occurring in practice are absorbed by the maintenance-free compression spring, in particular a polymer spring.
- the vibration behavior of the train is reduced due to the smaller strokes of the compression spring and the jump in force on the damper preload force with larger strokes.
- a drawbar and buffer device for a train coupling, in particular a center buffer coupling, has a first connection for a coupling shaft and a second connection, which is designed to fasten the drawbar and buffer device to a vehicle structure, for example to a vehicle frame or car body of a rail vehicle .
- the pulling and buffing device also has a spring device which transmits tensile forces and compressive forces between the first connection and the second connection.
- the spring device comprises at least one compression spring, in particular precisely one compression spring, and at least one hydraulic and/or pneumatic damper, in particular precisely one hydraulic and/or pneumatic damper.
- the compression spring and the damper are arranged in series with one another in the power flow from the first connection to the second connection, so that compression forces are transmitted from the compression spring to the damper.
- a spring constant of the compression spring is smaller than a spring constant of the damper.
- the spring constant which is also called spring stiffness, spring hardness, spring rate, reference value, or directly constant, indicates the ratio of the force acting on a spring to the resulting deflection of the spring, i.e. the deflection in this case.
- the inventive selection of the different spring constants of the compression spring and the damper ensures that the damper only acts in the case of comparatively larger tensile forces and impact forces transmitted by the draw and buffer device, whereas the compression spring acts as a supplement if it is not already fully compressed with the larger forces , or deflects only with correspondingly smaller transmitted forces.
- a minimum force for the initial deflection of the damper i.e. a force at which the deflection of the damper begins, is preferably greater than a compressive force at which the compression spring is deflected by at least 50 percent, in particular at least 70 percent or at least 90 percent of its spring travel. or even greater than a compressive force at which the compression spring is compressed by 100 percent of its spring travel, i.e. is already fully compressed.
- the compression spring is preferably made of plastic, in particular made of a polymer. Such a plastic spring has a favorable spring characteristic and is at least essentially not subject to any setting behavior.
- the damper or the compression spring is pressurized via an axially displaceable end-side first pressure plate.
- a first pressure plate is held in a housing with a linear guide, for example, as will be described below.
- the first pressure plate can also form one half of a stabilizing joint, which causes a center return of the clutch shaft.
- a second pressure plate can be provided, on which the spring or the damper is supported with its other axial end, the second connection being formed, for example, by a console in which the second pressure plate in the axial direction of the train - And pushing device is displaceable and in particular rotatable about a vertical axis of rotation.
- the second console can, for example, form a linear guide for the second pressure plate, so that the second pressure plate is reliably guided axially.
- the pulling and buffering device particularly preferably comprises a housing which forms the first connection, in particular in the form of a socket for a coupling shaft bolt, and which forms the second connection, in particular in the form of a console, the housing holding the compression spring and the damper on at least two wraps pages.
- the housing has an upper chord and a lower chord, which are arranged on both sides of the damper and the compression spring.
- the upper chord and the lower chord can be connected to one another, for example, via vertical components, in particular sheet metal components also be made as a sheet metal component. It is particularly preferred if the housing as a whole is assembled from sheet metal parts, in particular sheet metal plates, which enables cost-effective production and easy adaptability to different installation spaces.
- the sheet metal components can be produced, for example, by stamping or flame cutting, which is particularly cost-effective.
- the first pressure plate particularly preferably has a free, at least essentially flat contact surface pointing in the direction of the first connection for free contact with an opposite contact surface of the coupling shaft. This creates a stabilizing joint between the two contact surfaces. Due to the fact that two at least essentially flat contact surfaces of the first pressure plate and the clutch shaft bear against one another in the pressure direction, advantageously prestressed by the spring device, the two at least essentially flat contact surfaces tilt relative to one another when the clutch shaft is deflected from its central position, which results in a restoring moment, which acts to return the coupling stem to its center position, i.e. to the fully axially aligned position.
- the preferably pressurized but free contact of the two at least essentially flat surfaces and the possibility of tilting of the two at least essentially flat surfaces relative to one another thus represents a center reset integrated in the draw and buffer device.
- the first pressure plate preferably has, in the axial direction directed towards the first connection, in addition to the at least essentially flat contact surface shown, a front stop surface for at least one vehicle stop of a vehicle provided with the coupling shaft.
- the side with the contact surface and the contact surface is stepped, for example with a central protruding area that forms the flat contact surface, and with an outer area that encloses the central area on both sides or over the entire circumference and that forms the at least one end contact surface.
- the first connection is preferably formed by a receptacle for a coupling shaft bolt, which is mounted in the housing in a stationary and rotatable manner, for example.
- the stationary arrangement does not rule out a small axial play, for example a maximum of 1 cm in each axial direction, in particular a maximum of 5 mm, 3 mm, 2 mm or less.
- displaceability of the coupling shaft bolt in the housing can be considered, with the displaceability preferably being limited in both axial directions.
- the displaceability in the axial direction is then generally greater than half the diameter or the diameter of the coupling shaft bolt.
- a train coupling according to the invention in particular a central buffer coupling, has a coupling shaft which forms an at least essentially flat contact surface at its free end and which can be pivoted about a vertical axis, as well as a draw and buffer device according to the invention of the type shown, the contact surface of the first pressure plate, in particular acted upon by the spring device with a compressive force in the second axial direction, rests freely on the contact surface of the coupling shaft.
- the coupling shaft can thus transmit the compressive forces that are transmitted from one vehicle to the other vehicle via the train coupling, to the other vehicle via the first and second pressure plates and the interposed spring device with compression spring and damper, which in particular alone form the spring device.
- FIG. 1 shows a three-dimensional representation of a draw and buffer device in a train coupling
- FIG. 2 shows the draw and buffer device from FIG. 1 with further components of the installation environment
- FIG. 3 shows the draw and buffer device from FIG. 1 in a horizontal plan view
- FIG. 4 shows the draw and buffer device from FIG. 3 with further components of the installation environment
- FIG. 5 shows the draw and buffer device from FIG. 1 in a vertical sectional view
- FIG. 6 shows a further exemplary embodiment of a draw and buffer device according to the invention.
- FIG. 7 shows the draw and buffer device from FIG. 6 in a vertical sectional view
- FIG. 8 shows the draw and buffer device from FIG. 6 in a horizontal top view.
- the train coupling has a coupling shaft 3 which is articulated with a coupling shaft bolt 14 in a housing 12 of the draw and buffer device so that it can be pivoted about a vertical axis 15 .
- the housing 12 therefore forms a first connection 1 for the coupling shaft 3 or its coupling shaft bolt 14 with a receptacle 13 , it being possible to transmit tensile forces and compressive forces in opposite axial directions via the first connection 1 .
- the second connection 2 of the draw and buffer device, with which the draw and buffer device is attached to a vehicle structure, is formed by a bracket 9 which can be attached, for example, to a vehicle body or vehicle frame, in particular screwed on.
- the console 9 is part of the housing 12.
- the drawgear is located in a vehicle interface 16, e.g. UIC-530 vehicle interface shown by a double-dot chain line.
- Vehicle stops 17 are provided in the area of the first connection 1, with which compressive forces can be transmitted to the draw and buffer device, as will be explained below. In contrast, the tensile forces in the area of the first connection 1 are transmitted via the coupling shaft bolt 14 .
- second pressure plate 8 which is articulated, ie pivotable about an axis of rotation 10 which is oriented vertically, in the console 9 and is mounted so that it can be displaced to a limited extent in both axial directions.
- the second pressure plate 8 could also be rigidly connected to the console 20 or be formed by it, for example as is shown below with reference to a further exemplary embodiment and FIGS.
- a first pressure plate 7 is reciprocally displaceable in both axial directions.
- the first pressure plate 7 has an at least essentially flat contact surface 7.1 directed toward the clutch shaft 3, on which the clutch shaft 3 rests with an end-side at least essentially flat contact surface 3.1. Due to the fact that the two at least substantially flat contact surfaces 3.1, 7.1 rest freely against one another, being prestressed against one another by a spring device 4 arranged between the first pressure plate 7 and the second pressure plate 8, they can, if the Coupling shaft 3 is pivoted from its center position shown about the vertical axis 15, tilt against each other and thereby exert a restoring force on the coupling shaft 3.
- the housing 12 is formed by a sheet metal construction from sheet metal plates and has an upper chord 18 and a lower chord 19 which are arranged parallel to one another and are rigidly connected to one another via two vertical sheet metal plates 20 .
- the sheet metal plate 20 arranged at the end of the upper chord 18 and lower chord 19 together with a rear section of the upper chord 18 and the lower chord 19 forms the bracket 9.
- the first pressure plate 7 is held in a linear guide 11 in the housing 12 .
- the linear guide 11 is formed by the upper chord 18 and the lower chord 19 .
- the second pressure plate 8 is also guided in a linear guide 11 in the housing 12, namely in the area of the console 9.
- the spring device 4 is formed by a compression spring 5 and a hydraulic and/or pneumatic damper 6, the compression spring 5 and the damper 6 being in the direction of the force flow from the first connection 1 to the second connection 2 or from the first pressure plate 7 to the second pressure plate 8 in are arranged in a row.
- the compression spring 5 is supported directly on an end face of the damper 6 .
- the spring constants of the compression spring 5 and the damper 6 differ in such a way that when the first pressure plate 7 and the second pressure plate 8 are pushed together, the compression spring 5 initially compresses over a predetermined path, for example at least 50, 70 or 90 percent of its spring travel, before the Damper 6 begins to deflect.
- side stops 21 are shown for the application of compressive force.
- the housing 12 is supported on these.
- the housing 12 guides the two pressure plates 7, 8 and fully accommodates the spring device 4, as well as forming the first connection 1 and the second connection 2, an extremely compact design is achieved.
- the construction of the housing 12 allows the housing 12 to be easily adapted to different installation lengths.
- an intermediate plate 22 is provided between the compression spring 5 and the damper 6 in the axial direction.
- the intermediate plate 22 is mounted stationarily in the housing 12 in both axial directions, but is preferably rotatable about a vertical axis of rotation, in order to avoid transverse forces being introduced into the compression spring 5 .
- the second pressure plate 8 is displaceable with respect to the housing 12 and is formed by the bracket 9, but can also in turn be connected to it in an articulated manner.
- the housing 12 which is also advantageously designed in accordance with the exemplary embodiment from FIGS.
- the coupling shaft bolt 14 can also be accommodated in the housing 12 in a stationary manner, with the exception of an axial play.
- the damper 6 is not loaded with a compressive force when tensile forces are transmitted with the draw and buffer device, but only the compression spring 5.
- the damper load can thus be further reduced.
- the coupling shaft 3 presses the first pressure plate 7 via the compression spring 5, the intermediate plate 22 and the damper 6 against the console 9, so that compressive forces can be transmitted via the compression spring 5 and the damper 6 .
- a Tensile stress pulls the coupling shaft 3 via the coupling shaft bolt 14, the housing 12 and thus the intermediate plate 22 against the compressive force of the compression spring 5 and the first pressure plate 7 against the vehicle stops 13, so that the tensile force is cushioned.
- the tensile force is transmitted to the bracket 9 via the damper 6 and/or optionally a tie rod and the second pressure plate 8 .
- the damper 6 is connected in series with the compression spring 5 and only responds to comparatively larger pressure surges.
- the compression spring 5 can be designed, for example, as a polymer spring
- the damper 6 can be designed as a gas-hydraulic or fluid-elastomeric damper. If the damper preload is significantly higher than the spring preload, normal traction loads in the pull and push direction are absorbed by the spring 5, while the damper 6 acts only in the push direction for higher dome impacts and strong traction changes. This two-stage preload reduces load change reactions in ferry operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021109785 | 2021-04-19 | ||
| PCT/EP2022/059868 WO2022223391A1 (de) | 2021-04-19 | 2022-04-13 | ZUG- UND STOßEINRICHTUNG FÜR EINE ZUGKUPPLUNG UND ZUGKUPPLUNG |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4326596A1 true EP4326596A1 (de) | 2024-02-28 |
| EP4326596B1 EP4326596B1 (de) | 2026-03-11 |
Family
ID=81653448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22723349.1A Active EP4326596B1 (de) | 2021-04-19 | 2022-04-13 | Zug- und stosseinrichtung für eine zugkupplung und zugkupplung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4326596B1 (de) |
| CN (1) | CN117177893B (de) |
| DE (1) | DE102022109045A1 (de) |
| WO (1) | WO2022223391A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023106959A1 (de) | 2023-03-20 | 2024-09-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Zug- und Stoßeinrichtung, insbesondere für eine Mittelpufferkupplung |
| DE102023118411A1 (de) | 2023-07-12 | 2025-01-16 | Voith Patent Gmbh | Zug-/Stoßeinrichtungsgehäuse zur Aufnahme und mittelbaren Abstützung von zumindest einer Energieverzehreinrichtung zum Integrieren in einen vordefinierten Einbauraum, insbesondere den UIC-Einbauraum eines Schienenfahrzeuges |
| DE102024125242A1 (de) | 2024-09-04 | 2026-03-05 | Kb Intellectual Property Gmbh & Co. Kg | Stoß- und Zugeinrichtung für eine Mittelpufferkupplung |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3031089A (en) | 1959-03-05 | 1962-04-24 | Avon India Rubber Company Ltd | Central buffing and draft gear |
| US3150782A (en) | 1962-08-29 | 1964-09-29 | Cardwell Westinghouse Co | High capacity draft gear |
| US3368698A (en) | 1966-01-12 | 1968-02-13 | Cardwell Westinghouse Co | Hydraulic draft gear with constant force device |
| US3447693A (en) | 1967-11-02 | 1969-06-03 | Cardwell Westinghouse Co | Combined hydraulic cushion-friction clutch draft gear |
| US3556311A (en) | 1968-07-02 | 1971-01-19 | Acf Ind Inc | Cushioning arrangement for the end of a railway car |
| US3854596A (en) | 1973-01-30 | 1974-12-17 | Halliburton Co | Railway unit cushioning apparatus |
| US5908123A (en) * | 1997-01-21 | 1999-06-01 | Keystone Industries, Inc. | Rail car buffer and method |
| DE10101470B4 (de) * | 2001-01-12 | 2009-02-26 | Faiveley Transport Remscheid Gmbh | Zug- und Stossvorrichtung mit Kupplungsarm von Mittelpufferkupplungen |
| US7175036B2 (en) | 2004-04-08 | 2007-02-13 | Wabtec Holding Corp. | Long travel high capacity friction draft gear assembly |
| DE202004014532U1 (de) | 2004-09-16 | 2006-02-02 | Faiveley Transport Remscheid Gmbh | Federwerkseinbaukasten |
| US7419065B2 (en) | 2006-03-02 | 2008-09-02 | Wabtec Holding Corp. | Light weight high capacity friction draft gear assembly |
| US7568584B2 (en) * | 2006-07-17 | 2009-08-04 | Assf-Keystone, Inc. | Draft sill wear liner |
| ES2380106T3 (es) * | 2009-10-01 | 2012-05-08 | Voith Patent Gmbh | Dispositivo para amortiguar fuerzas de tracción y compresión |
| US8672151B2 (en) | 2011-09-15 | 2014-03-18 | Wabtec Corp | Elastomeric draft gear for a railcar |
| DE102012111516A1 (de) * | 2012-11-28 | 2014-05-28 | Voith Patent Gmbh | Vorrichtung zum Abdämpfen von Druckkräften |
| PL3183157T3 (pl) | 2014-08-22 | 2021-01-25 | Voith Patent Gmbh | Urządzenie cięgłowe i zderzne |
| DE102015109394A1 (de) * | 2015-06-12 | 2016-12-15 | Voith Patent Gmbh | ZUG-/STOßEINRICHTUNG, INSBESONDERE FÜR MITTELPUFFERKUPPLUNGEN VON SPURGEFÜHRTEN FAHRZEUGEN |
| DE102016205981A1 (de) * | 2016-04-11 | 2017-10-12 | Voith Patent Gmbh | Zug- und Stoßeinrichtung |
| DE102019106961A1 (de) * | 2019-03-19 | 2020-09-24 | Voith Patent Gmbh | Kraftübertragungselement für eine kupplung eines spurgeführten fahrzeuges sowie verfahren zum überwachen der funktionsweise einer kupplungsanordnung |
-
2022
- 2022-04-13 DE DE102022109045.0A patent/DE102022109045A1/de active Pending
- 2022-04-13 EP EP22723349.1A patent/EP4326596B1/de active Active
- 2022-04-13 CN CN202280029114.1A patent/CN117177893B/zh active Active
- 2022-04-13 WO PCT/EP2022/059868 patent/WO2022223391A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN117177893B (zh) | 2026-03-20 |
| CN117177893A (zh) | 2023-12-05 |
| WO2022223391A1 (de) | 2022-10-27 |
| EP4326596B1 (de) | 2026-03-11 |
| DE102022109045A1 (de) | 2022-10-20 |
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