EP0687231A1 - Rail vehicle suspension system - Google Patents

Rail vehicle suspension system

Info

Publication number
EP0687231A1
EP0687231A1 EP95903745A EP95903745A EP0687231A1 EP 0687231 A1 EP0687231 A1 EP 0687231A1 EP 95903745 A EP95903745 A EP 95903745A EP 95903745 A EP95903745 A EP 95903745A EP 0687231 A1 EP0687231 A1 EP 0687231A1
Authority
EP
European Patent Office
Prior art keywords
spring
spherical
gas
gas spring
spring system
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.)
Withdrawn
Application number
EP95903745A
Other languages
German (de)
French (fr)
Inventor
Richard Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
Publication of EP0687231A1 publication Critical patent/EP0687231A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/48—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs
    • B60G11/62—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds not including leaf springs having both rubber springs and fluid springs
    • 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
    • B61F5/148—Side bearings between bolsterless bogies and underframes

Definitions

  • the present invention relates to a support spring system for rail vehicles, with a gas spring intended to absorb vertical forces.
  • gas springs in particular special air springs
  • air springs are usually mounted in series with a rubber layer spring.
  • the air spring is deflected very gently in the transverse direction and cardanically. This leads on the one hand to an extraordinarily high load on the air spring and on the other hand to an increased transverse rigidity of the system.
  • the air spring must be dimensioned so large that its installation in the bogie is often out of the question for reasons of space. This applies in particular where not only a central air spring, but several such spring systems (e.g. two or four) are to be installed in a bogie.
  • the object of the present invention was therefore to develop a spring system which meets all requirements.
  • Such spring systems can thus be easily installed in large numbers between a bogie and the lower part of the car body.
  • a rubber layer spring is additionally arranged below the gas spring.
  • the spherical geometry and the spherical stiffness are designed so that the pneumatic spring has a defined, i.e. limited gimbal angle positive or negative. This allows the lateral stiffness of the system to be influenced within wide limits, particularly towards low, convenient values.
  • Figure 1 purely schematically, a known spring system consisting of lower layer spring and gas spring arranged above it in normal pitch (extended) and deformed (dashed);
  • Fig. 2 also purely schematically a spring system constructed in accordance with the invention, with a lower layer spring, a gas spring arranged above it and a calotte spring provided on its upper end, in the same loading conditions as the spring system according to FIG. 1, and
  • Fig. 3a also purely schematically some arrangement possibilities to 3d speeds of the spring systems on bogies.
  • the spring systems shown in the drawing each show, purely schematically, a support point for rail vehicles, the spring systems being arranged between the bogie and the body or between the bogie and a crossbar.
  • a central spring system or a plurality of spring systems can be provided between the bogie and the car body or traverse. In such cases, the sizes are of course dependent on the loads to be expected. 3a-d of the drawing show some possible arrangements of the spring systems in bogies.
  • FIG. 1 of the drawing shows (schematically a conventional spring system for rail vehicles, with a layer spring 1 below (layered rubber spring, ie rubber and metal plates arranged alternately one above the other). Layer springs of this type are known and do not need to be explained in more detail here A gas spring is arranged in layer spring 1. Gas springs are also generally known in vehicle construction and do not require any further explanation.
  • Such spring combinations are e.g. known from DE-OS 23 05 878 and DE-OS 26 04 769.
  • a single spring type for example a gas spring, would be sufficient to absorb purely vertical forces.
  • the gas springs were arranged in series with layered rubber springs to increase the transverse travel of the spring system and to reduce transverse rigidity, as described in the cited documents.
  • the air spring in such constructions is, however, strongly transverse (Y) and cardanic ( ⁇ ) deflected.
  • Y strongly transverse
  • ⁇ cardanic
  • this inevitably leads to high stress on the gas spring and, on the other hand, to a higher transverse rigidity of the spring system.
  • the gas spring In order to transmit the displacements shown solely via the gas spring, the gas spring must be dimensioned so large that it is very difficult to accommodate it in a bogie.
  • the spring system according to the invention is constructed in the lower part essentially the same as in the prior art, i.e. in addition to the air spring 2, it preferably also has a rubber layer spring 1.
  • a spherical rubber spring 3 (spherical spring) is additionally arranged on the head of the gas spring 2.
  • This system can now be loaded by vertical forces F alone or by transverse forces F 'and moments M and will behave as shown in the drawing.
  • the upper part of the gas spring is essentially maintained in the horizontal position even under gimbal and transverse deflection.
  • the transverse deflection is absorbed by the rubber layer spring 1 and the gas spring 2.
  • the system can possibly deform in such a way that the gas spring upper part unites during operation with any transverse deflection predetermined angle to the horizontal.
  • this system achieves lower stress and rigidity and better cross-travel utilization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Fluid-Damping Devices (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention pertains to hydroxymethylimidazodiazepines of general formula (I) and their esters. These compounds can be used as anxiolytic and/or anticonvulsive and/or muscle-relaxing and/or sedative hypnotic agents. In formula (I), A together with the two carbon atoms designed as α and β is one of the radicals (A?1), (A2) or (A3); R1¿ is hydrogen or lower alkanoyl; R2 is phenyl, o-halophenyl or 2-pyridyl; R3 is hydrogen, lower alkyl, methylaminomethyl, allylaminomethyl or diethylaminomethyl; R4 is halogen, CF¿3? or nitro; R?5¿ is hydrogen or halogen.

Description

Abstutzfedersystem fύr Schienenfahrzeuge Support spring system for rail vehicles
Die vorliegende Erfindung betrifft ein Abstutzfedersystem für Schienenfahrzeuge, mit einer zur Aufnahme vertikaler Kräfte bestimmten Gasfeder.The present invention relates to a support spring system for rail vehicles, with a gas spring intended to absorb vertical forces.
Es ist bekannt, als vertikale Federung von Schienenfahrzeugen Gasfedern, insb sondere Luftfedern einzusetzen. Um die Querwege des Federsyεtems zu erhöhen und um die Quersteifigkeit zu reduzieren, werden die Luftfedern meist in Serie mit einer Gummischichtfeder montiert. Falls eine solche Konstruktion aber bei QuerneigungsSystemen angewendet wird, so ist nicht zu vermeiden, dass die Luftfeder sehr stark in Querrichtung und kardanisch ausgelenkt wird. Dies führt einerseits zu einer ausserordentlich hohen Beanspruchung der Luftfeder und andererseits zu einer erhöhten Quersteifigkeit des Systems.It is known to use gas springs, in particular special air springs, as the vertical suspension of rail vehicles. In order to increase the cross paths of the spring system and to reduce the transverse rigidity, the air springs are usually mounted in series with a rubber layer spring. However, if such a construction is used in bank systems, it cannot be avoided that the air spring is deflected very gently in the transverse direction and cardanically. This leads on the one hand to an extraordinarily high load on the air spring and on the other hand to an increased transverse rigidity of the system.
Falls die Verschiebungen nur über die Luftfeder übertragen werden sollten, muss die Luftfeder derart gross dimensioniert werden, dass deren Einbau im Drehgestell aus Platzgründen oft kaum mehr in Frage kommt. Dies gilt insbesondere dort, wo nicht nur eine zentrale Luftfeder, sondern mehrere solche Federsysteme (z.B. zwei oder vier) in ein Drehgestell eingebaut werden sollen.If the displacements should only be transmitted via the air spring, the air spring must be dimensioned so large that its installation in the bogie is often out of the question for reasons of space. This applies in particular where not only a central air spring, but several such spring systems (e.g. two or four) are to be installed in a bogie.
Um diesem Nachteil zu begegnen, wurden Federsysteme vorgeschlagen, bei denen Luftfedern mit Stahlfedern statt mit Schichtfedern kombiniert wurden, ohne jedoch die geforderten Kriterien bezüglich Beanspruchung, Quersteifigkeit und Einbauvolumen optimal zu erfüllen.To overcome this disadvantage, spring systems have been proposed in which air springs with steel springs instead of Layer springs were combined, but without optimally fulfilling the required criteria with regard to stress, transverse rigidity and installation volume.
Aufgabe der vorliegenden Erfindung war somit die Entwicklung eines Federsystems, welche allen Anforderungen genügt.The object of the present invention was therefore to develop a spring system which meets all requirements.
Diese Aufgabe wurde nun bei einem Federsystem der eingangs definierten Art erfindungsgemäss dadurch gelöst, dass am oberen Ende bzw. am Kopf der Gasfeder zusätzlich eine Kalottenfeder, vorzugsweise in Form einer sphärischen Gummifeder vorgesehen wurde.This object has now been achieved according to the invention in a spring system of the type defined at the outset by additionally providing a spherical spring, preferably in the form of a spherical rubber spring, at the upper end or at the head of the gas spring.
Durch diese konstruktiv einfache Kombination einer Luftfeder mit einer Kalottenfeder lassen sich beliebige kardanische Winkel erreichen, dies bei gleichbleibender horizontaler Lage der Luftfederung. Mit dieser Konstruktion wird eine niedrige Beanspruchung, eine geringe Quersteifigkeit bei wesentlich verbesserter Querwegausnutzung erreicht , dies alles bei einer vertretbaren Vergrösserung der Einbauhόhe.Thanks to this structurally simple combination of an air spring with a spherical spring, any gimbal angle can be achieved, with the horizontal position of the air suspension remaining the same. With this construction, a low load, a low transverse rigidity with a significantly improved utilization of the transverse path are achieved, all of this with a reasonable increase in the installation height.
Solche Federsysteme lassen sich somit problemlos auch in grösserer Zahl zwischen ein Drehgestell und den Unterteil des Wagenkastens einbauen.Such spring systems can thus be easily installed in large numbers between a bogie and the lower part of the car body.
Bei einer besonders bevorzugten Ausführungsform wird unterhalb der Gasfeder zusätzlich eine Gummischichtfeder angeordnet.In a particularly preferred embodiment, a rubber layer spring is additionally arranged below the gas spring.
Dank der erfindungsgemässen Konstruktion werden folgende Leistungsmerkmale erzielt:Thanks to the construction according to the invention, the following performance features are achieved:
eine hohe kardanische Beanspruchbarkeit des FederSystems; niedrigste System-Quersteifigkeit unter kardanischer Beanspruchung;a high gimbal strength of the spring system; lowest system lateral stiffness under gimbal stress;
grosse Querwege;large cross paths;
ein optimales Einbauvolume .an optimal installation volume.
Neben der Anwendung, wo die Luftfeder praktisch ständig horizontal bleibt, sind Ausführungsformen möglich, bei denen die Kalottengeometrie und die Kalottensteifigkeiten so ausgelegt sind, dass die Luftfeder einen definierten, d.h. begrenzten kardanischen Winkel positiv oder negativ ausführt. Damit kann die Quersteifigkeit des Systems in weiten Grenzen beeinflusst werden, insbesondere hin zu niedrigen, komfortgünstigen Werten.In addition to the application where the air spring remains practically constantly horizontal, embodiments are possible in which the spherical geometry and the spherical stiffness are designed so that the pneumatic spring has a defined, i.e. limited gimbal angle positive or negative. This allows the lateral stiffness of the system to be influenced within wide limits, particularly towards low, convenient values.
Die Erfindung wird nachstehend anhand von in der Zeichnung dargestellten Ausführungsbeispielen noch etwas näher erläutert. Es zeigt:The invention is explained in more detail below with reference to exemplary embodiments shown in the drawing. It shows:
Fig. 1 rein schematisch ein bekanntes Federsystem, bestehend aus unterer Schichtfeder und darüber angeordneter Gasfeder in Normalsteilung (ausgezogen) und deformiert (gestrichelt) ;Figure 1 purely schematically, a known spring system consisting of lower layer spring and gas spring arranged above it in normal pitch (extended) and deformed (dashed);
Fig. 2 ebenfalls rein schematisch ein erfindungsgemäss aufgebautes Federsystem, mit unterer Schichtfeder, darüber angeordneter Gasfeder und an deren oberem Ende vorgesehener Kalottenfeder, in denselben Belastungszuständen wie das Federsystem nach Fig. 1, undFig. 2 also purely schematically a spring system constructed in accordance with the invention, with a lower layer spring, a gas spring arranged above it and a calotte spring provided on its upper end, in the same loading conditions as the spring system according to FIG. 1, and
Fig. 3a ebenfalls rein schematich einige Anordnungsmöglich- bis 3d keiten der Federsysteme an Drehgestellen. Die in der Zeichnung dargestellten Federsysteme zeigen rein schematisch je einen Abstützpunkt für Schienenfahrzeuge, wobei die Federsysteme zwischen Drehgestell und Wagenkasten oder zwischen Drehgestell und einer Traverse angeordnet werden.Fig. 3a also purely schematically some arrangement possibilities to 3d speeds of the spring systems on bogies. The spring systems shown in the drawing each show, purely schematically, a support point for rail vehicles, the spring systems being arranged between the bogie and the body or between the bogie and a crossbar.
Je nach Konstruktionsprinzip können zwischen Drehgestell und Wagenkasten oder Traverse ein zentrales Federsystem oder eine Mehrzahl Federsysteme vorgesehen werden. Die Baugrössen sind in solchen Fällen selbstverständlich von den zu erwartenden Belastungen abhängig. Fig. 3a - d der Zeichnung zeigen einige Anordnungsmöglichkeiten der Federsysteme in Drehgestellen.Depending on the design principle, a central spring system or a plurality of spring systems can be provided between the bogie and the car body or traverse. In such cases, the sizes are of course dependent on the loads to be expected. 3a-d of the drawing show some possible arrangements of the spring systems in bogies.
Fig. 1 der Zeichnung zeigt (Schematisch ein konventionelles Federsystem für Schienenfahrzeuge, mit einer untenliegenden Schichtfeder 1 (Gummischichtfeder, d.h. abwechselnd überein¬ ander angeordneten Gummi- und Metallplatten). Solche Schichtfedern sind bekannt und brauchen hier nicht näher erläutert zu werden. Direkt über der Schichtfeder 1 ist eine Gasfeder angeordnet. Auch Gasfedern sind im Fahrzeugbau allgemein bekannt und bedürfen keiner weiteren Erläuterung.1 of the drawing shows (schematically a conventional spring system for rail vehicles, with a layer spring 1 below (layered rubber spring, ie rubber and metal plates arranged alternately one above the other). Layer springs of this type are known and do not need to be explained in more detail here A gas spring is arranged in layer spring 1. Gas springs are also generally known in vehicle construction and do not require any further explanation.
Derartige Federkombinationen sind z.B. bekannt aus DE-OS 23 05 878 und DE-OS 26 04 769.Such spring combinations are e.g. known from DE-OS 23 05 878 and DE-OS 26 04 769.
Zur Aufnahme von rein vertikalen Kräften würde ein einziger Federtyp, z.B. eine Gasfeder ausreichen. Da bei Schienenfahrzeugen jedoch unvermeidbar Querkräfte auftreten, wurden zur Erhöhung der Querwege des FederSystems und zur Reduktion der Quersteifigkeit, wie in den genannten Druckschriften beschrieben, die Gasfedern in Serie mit Gummischichtfedern angeordnet. Bei QuerneigungsSystemen wird die Luftfeder bei derartigen Konstruktionen, wie in Fig. 1 gezeigt, allerdings stark quer (Y) und kardanisch (φ) ausgelenkt. Dies führt einerseits zwangsläufig zu einer hohen Beanspruchung der Gasfeder und andererseits zu einer höheren Quersteifigkeit des Federsystems. Um die gezeigten Verschiebungen allein über die Gasfeder zu übertragen, muss die Gasfeder so gross dimensioniert werden, dass deren Unterbringung in einem Drehgestell auf grosse Schwierigkeiten stösst.A single spring type, for example a gas spring, would be sufficient to absorb purely vertical forces. However, since lateral forces inevitably occur in rail vehicles, the gas springs were arranged in series with layered rubber springs to increase the transverse travel of the spring system and to reduce transverse rigidity, as described in the cited documents. In bank systems, the air spring in such constructions, as shown in FIG. 1, is, however, strongly transverse (Y) and cardanic (φ) deflected. On the one hand, this inevitably leads to high stress on the gas spring and, on the other hand, to a higher transverse rigidity of the spring system. In order to transmit the displacements shown solely via the gas spring, the gas spring must be dimensioned so large that it is very difficult to accommodate it in a bogie.
Dank der erfindungsgemässen Konstruktion, wie in Fig. 2 dargestellt, können diese Nachteile bezüglich übermässiger Beanspruchung, hoher Quersteifigkeit und Einbauvolumen vermieden werden.Thanks to the construction according to the invention, as shown in FIG. 2, these disadvantages with regard to excessive stress, high transverse rigidity and installation volume can be avoided.
Das Federsystem gemäss der Erfindung ist im unteren Teil im wesentlichen gleich aufgebaut wie beim Stand der Technik, d.h. es weist neben der Luftfeder 2 vorzugsweise ebenfalls eine Gummischichtfeder 1 auf. Der wesentliche Unterschied besteht nun darin, dass zusätzlich am Kopf der Gasfeder 2 eine sphärische Gummifeder 3 (Kalottenfeder) angeordnet ist.The spring system according to the invention is constructed in the lower part essentially the same as in the prior art, i.e. in addition to the air spring 2, it preferably also has a rubber layer spring 1. The main difference now is that a spherical rubber spring 3 (spherical spring) is additionally arranged on the head of the gas spring 2.
Dieses System kann nun durch vertikale Kräfte F allein oder durch Querneigungskräfte F' und Momente M belastet werden und wird sich wie in der Zeichnung gezeigt, verhalten.This system can now be loaded by vertical forces F alone or by transverse forces F 'and moments M and will behave as shown in the drawing.
Je nach Kalottengeometrie und Kalottensteifigkeit wird das Gasfederoberteil auch im Betrieb unter kardanischer Auslenkung und Querauslenkung im wesentlichen die horizontale Lage beibehalten. Die Querauslenkung wird von der Gummischichtfeder 1 und der Gasfeder 2 aufgenommen.Depending on the dome geometry and dome stiffness, the upper part of the gas spring is essentially maintained in the horizontal position even under gimbal and transverse deflection. The transverse deflection is absorbed by the rubber layer spring 1 and the gas spring 2.
Abhängig von der Auswahl der elastischen Eigenschaften des elastomeren Körpers 5 sowie der Kalottengeometrie, kann sich das System gegebenenfalls derart deformieren, dass im Betrieb bei beliebiger Querauslenkung das Gasfederoberteil einen vorbestimmten Winkel zur Horizontalen einnimmt.Depending on the selection of the elastic properties of the elastomeric body 5 as well as the calotte geometry, the system can possibly deform in such a way that the gas spring upper part unites during operation with any transverse deflection predetermined angle to the horizontal.
Das Wichtigste dabei ist, dass sich beliebige kardanische Winkel erreichen lassen.The most important thing is that any gimbal angle can be reached.
Bei vertretbarer Vergrosserung der Einbauhöhe wird mit diesem System eine niedrigere Beanspruchung und Steifigkeit sowie eine bessere Querwegausnutzung erzielt. With an acceptable increase in installation height, this system achieves lower stress and rigidity and better cross-travel utilization.

Claims

Patentansprüche claims
1. Abstutzfedersystem für Schienenfahrzeuge, mit einer zur Aufnahme vertikaler Kräfte bestimmten Gasfeder, dadurch gekennzeichnet , dass am oberen Ende der Gasfeder zusätzlich eine Kalottenfeder vorgesehen ist .1. Support spring system for rail vehicles, with a gas spring intended to absorb vertical forces, characterized in that a spherical spring is additionally provided at the upper end of the gas spring.
2. Federsystem nach Anspruch 1 , dadurch gekennzeichnet, dass unter der Gasfeder zusätzlich eine Schichtfeder angeordnet ist .2. Spring system according to claim 1, characterized in that a layer spring is additionally arranged under the gas spring.
3. Federsystem nach Anspruch 1, dadurch gekennzeichnet, dass die Kalottenfeder als sphärische Gummifeder oder schalenförmig ausgebildet ist.3. Spring system according to claim 1, characterized in that the spherical spring is designed as a spherical rubber spring or shell-shaped.
4. Federsystem nach einem der Ansprüche 1 - 3 , dadurch gekennzeichnet , dass die Kalottengeometrie und die Kalottensteif igkeit derart gewählt sind, dass der Gasfederoberteil im Betrieb horizontal bleibt.4. Spring system according to one of claims 1-3, characterized in that the calotte geometry and the calotte stiffness are chosen such that the gas spring upper part remains horizontal during operation.
5. Federsystem nach einem der Ansprüche 1 - 3 , dadurch gekennzeichnet , das s die Kalottengeomentrie und Kalottensteif igkeiten derart gewählt sind, dass der Gas f ederobertei l im Betrieb , abhängig von der Queraus lenkung , einen vorbes timmten Winkel zur Horizontalen bildet.5. Spring system according to one of claims 1-3, characterized in that the spherical geometry and spherical stiffness are selected such that the gas spring part l in operation, depending on the transverse deflection, forms a predetermined angle to the horizontal.
6. Schienenfahrzeug, dadurch gekennzeichnet, dass zwischen jedem Drehgestell und dem Wagenkasten jeweils mindestens ein Abstutzfedersystem gemäss einem der Ansprüche 1 -3 vorgesehen ist . 6. Rail vehicle, characterized in that at least one support spring system according to one of claims 1 -3 is provided between each bogie and the car body.
EP95903745A 1994-01-11 1995-01-04 Rail vehicle suspension system Withdrawn EP0687231A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH00078/94A CH688888A5 (en) 1994-01-11 1994-01-11 Abstuetzfederanordnung for rail vehicles.
CH78/94 1994-01-11
PCT/CH1995/000001 WO1995018734A1 (en) 1994-01-11 1995-01-04 Hydroxymethylimidazodiazepines and their esters

Publications (1)

Publication Number Publication Date
EP0687231A1 true EP0687231A1 (en) 1995-12-20

Family

ID=4178768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95903745A Withdrawn EP0687231A1 (en) 1994-01-11 1995-01-04 Rail vehicle suspension system

Country Status (12)

Country Link
EP (1) EP0687231A1 (en)
AU (1) AU1270995A (en)
BG (1) BG100011A (en)
CH (1) CH688888A5 (en)
CZ (1) CZ256395A3 (en)
FI (1) FI954200A0 (en)
HU (1) HUT76195A (en)
NO (1) NO953524L (en)
PL (1) PL310545A1 (en)
SI (1) SI9520001A (en)
WO (1) WO1995018734A1 (en)
ZA (1) ZA95129B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608179A1 (en) * 1996-03-04 1997-09-11 Deutsche Waggonbau Ag Support of rail vehicles using air suspension systems
DE102004048420A1 (en) * 2004-10-05 2006-04-13 Continental Aktiengesellschaft Air strut for a motor vehicle
CN107161167B (en) * 2016-03-07 2018-08-28 株洲时代新材料科技股份有限公司 Rubber pad and its stiffness tuning method for series-connected helical spring
AT524102B1 (en) * 2020-07-23 2022-07-15 Univ Graz Tech air spring arrangement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE370209B (en) * 1973-02-06 1974-10-07 Asea Ab
CH644317A5 (en) * 1979-11-02 1984-07-31 Inventio Ag Lateral support of the carriage body of a rail vehicle with bolsterless bogie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9518734A1 *

Also Published As

Publication number Publication date
AU1270995A (en) 1995-08-01
FI954200A (en) 1995-09-08
ZA95129B (en) 1996-02-21
CZ256395A3 (en) 1996-01-17
PL310545A1 (en) 1995-12-27
WO1995018734A1 (en) 1995-07-13
CH688888A5 (en) 1998-05-15
HUT76195A (en) 1997-07-28
SI9520001A (en) 1995-12-31
NO953524D0 (en) 1995-09-07
HU9502644D0 (en) 1995-12-28
NO953524L (en) 1995-09-07
FI954200A0 (en) 1995-09-08
BG100011A (en) 1996-07-31

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