EP0858938B1 - Dispositif pour deplacer ainsi que verrouiller dans des positions terminales d'éléments mobiles l'un vers l'autre - Google Patents

Dispositif pour deplacer ainsi que verrouiller dans des positions terminales d'éléments mobiles l'un vers l'autre Download PDF

Info

Publication number
EP0858938B1
EP0858938B1 EP98102337A EP98102337A EP0858938B1 EP 0858938 B1 EP0858938 B1 EP 0858938B1 EP 98102337 A EP98102337 A EP 98102337A EP 98102337 A EP98102337 A EP 98102337A EP 0858938 B1 EP0858938 B1 EP 0858938B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston rod
piston
switching
switching cylinder
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.)
Expired - Lifetime
Application number
EP98102337A
Other languages
German (de)
English (en)
Other versions
EP0858938A2 (fr
EP0858938A3 (fr
Inventor
Thomas Dipl.-Ing. Maul
Alfred Kais
Walter Dr. Kunitz
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.)
Voestalpine Turnout Technology Germany GmbH
Original Assignee
Voestalpine BWG GmbH
Butzbacher Weichenbau GmbH
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 Voestalpine BWG GmbH, Butzbacher Weichenbau GmbH filed Critical Voestalpine BWG GmbH
Publication of EP0858938A2 publication Critical patent/EP0858938A2/fr
Publication of EP0858938A3 publication Critical patent/EP0858938A3/fr
Application granted granted Critical
Publication of EP0858938B1 publication Critical patent/EP0858938B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/04—Fluid-pressure devices for operating points or scotch-blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points

Definitions

  • the invention relates to a device for adjusting and locking in end positions of mutually movable elements, in particular movable track sections such as Turnout and frog tip parts, including one to which a working fluid can be applied Piston-cylinder arrangement with double-acting cylinder and stationary, one of the working fluid actable longitudinal bore having a piston rod, along the the cylinder is displaceable, the end positions corresponding to the end positions is lockable and of which a connecting element leading to the adjustment of the element emanates.
  • actuators that can be actuated via spindle drives or hydraulic cylinders known from which pushrods start.
  • the push rods act on switches Example with clasp tip closures to lock or switch the switch tongues Unlock.
  • Known actuators which can be actuated via spindle drives are, for example, the DE 31 06 708 C1, US 4,637,579 or WO 95/08672.
  • EP 0 684 174 A1 describes a device for locking movable switch parts known.
  • parts in the form of a tube and are movable relative to one another a bolt guided in the tube is provided, the tube over part of it Axial length in the axial direction slots forming spring tongues has, which can engage with their free ends in a stationary outer tube to enable a lock.
  • the bolt in turn is with a switch tongue to the tongue Adjust connected. About the bolt itself, the pipe is taken, which in the desired end positions are locked.
  • Hydraulic turnout drives are known from DE 25 57 574 B2 and DE 27 44 969 B2 known, in which cylinders are displaceable along a fixed piston rod to switch switch tongues via a transmission linkage.
  • One of the control and locking parts independent release of the holding force of the point machine can be achieved when opening the switch.
  • the present invention is based on the problem of a device at the beginning mentioned type in such a way that a piston-cylinder arrangement enables safe adjustment and locking and thus fixing of the movable elements is, at the same time a low wear of the elements used and thus Maintenance should be reduced. Furthermore, it should be ensured that the leverage occurring when adjusting are kept as low as possible. Also supposed to be guaranteed that when the element is locked, regardless of the fluid exposure an uncontrolled adjustment is not possible in the piston-cylinder arrangement.
  • the problem is essentially solved in that within the Piston rod at least one shift cylinder is arranged axially displaceably, via a first spring element displaceable against the application of force generated by the working fluid is, and that the piston rod starting from the longitudinal bore of at least one radially displaceable locking element is penetrated, which is in an end position located cylinder extends in areas in a receiving chamber of this and in this is held by contact with the shift cylinder.
  • the locking of the double-acting cylinder and thus that Set the movable element such as switch tongue or frog tip in their End positions due to the fact that the shift cylinder, which is displaceable within the piston rod, ad locking element engaging in a cavity of the cylinder acts in such a way that it cannot be moved out without adjusting the shift cylinder. So is ensures that the cylinder is in an immovable position with respect to the piston rod occupies.
  • the teaching according to the invention also offers the possibility of several adjustment devices designed according to the invention one behind the other and to be arranged in a working fluid circuit, with functional reliability of the circuit is also guaranteed if the cylinder is not in one of the facilities End position can be moved by jamming, for example.
  • an auxiliary piston with an axial opening within the shift cylinder is displaceable, one end area of which is connected to the longitudinal bore of the piston rod and the other end area can be closed via a check valve. It also works on the auxiliary piston a spring element such as a disc spring assembly to seal the auxiliary piston opposite the shift cylinder.
  • the force caused by the disc spring assembly can then be overcome when the fluid pressure is a predetermined and determined by the Spring force of the disc spring assembly exceeds the specified value.
  • the Auxiliary piston moved to the shift cylinder so that working fluid over the auxiliary piston and the shift cylinder to another device, d. H. the interior of another Piston rod can flow along which another cylinder is slidable.
  • a within the piston rod wall Connection runs from an interior surrounded by a switching cylinder to another switching cylinder limited by the longitudinal bore predetermined outer space with cylinder locked in an end position and with the same or approximately the same working fluid supply of the first and second shift cylinders.
  • each shift cylinder can have a preferably axially extending in the longitudinal bore Switch rod to be connected to monitor the respective position.
  • the locking element itself has an axial extent that is smaller than that of Admission chamber is. This ensures that when fluid is applied and from the Displacement of the locking element remote switching cylinder of the cylinder along the Piston rod can be moved radially after the locking element itself moved and removed from the receiving chamber.
  • the sliding end walls preferably have a frustoconical geometry.
  • the auxiliary piston which functions as a pressure relief valve, is mentioned supported against the shift cylinder, preferably via a plate spring assembly, on the in turn, the spring element is supported, by means of which the shift cylinder counteracts that of the Working fluid-induced force application is displaceable.
  • This spring element is furthermore on an intermediate wall of the longitudinal bore of the Piston rod supported.
  • the check valve closing the opening or bore of the auxiliary piston comprises a third spring element, the spring force of which is smaller than that of the spring element, which acts on the shift cylinder.
  • the spring force of this spring element is again smaller than that of the spring element acting on the auxiliary piston, such as a disk spring assembly.
  • the facility includes a double acting Cylinder 10 with cylinder heads 12 and 13.
  • the cylinder 10 is along a stationary Piston rod 14 slidable, which passes through the cylinder heads 12 and 13. So that Cylinder 10 is displaceable along the piston rod 14, are used as receiving chambers designated working spaces 16, 18 in the cylinder heads 12 and 13 with working fluid such as Hydraulic oil can be acted upon via sections 20, 22 of a longitudinal bore 24 of the piston rod 14 is flowable.
  • the sections 20, 22 are over a radially extending partition 30 divided with central bore 32. Sections 20, 22 are axially displaceable Shift cylinders 26, 28 arranged.
  • First spring elements 34, 36 which rest on the shift cylinders, are supported on the partition wall 30 26, 28 act to axially within the sections 20, 22 of the longitudinal bore 24 of the Piston rod 14 and against the working fluid flowing in the direction of arrow 39, 41 adjust.
  • the first spring elements designed as helical springs are preferably 34, 36 supported on second spring elements 38, 40 in the form of disk spring assemblies, which in turn between an insert 42 and an auxiliary piston 44, 46 axially displaceable in the shift cylinder 26, 28 are.
  • first spring elements designed as helical springs are preferably 34, 36 supported on second spring elements 38, 40 in the form of disk spring assemblies, which in turn between an insert 42 and an auxiliary piston 44, 46 axially displaceable in the shift cylinder 26, 28 are.
  • the auxiliary piston 44, 46 in turn, like the shift cylinder 26, 28, has a central one Bore 48 on, one end opening 50 through an end opening 52 of the interior 54 of the shift cylinder 26, 28 with the section 20 or 22 of the longitudinal bore 24 of the Piston rod 14 is connected.
  • the opposite opening 56 of the bore 48 of the Auxiliary piston 44 is via a third spring element acting on a ball 58 and on it 60 check valve formed can be closed.
  • the third spring element is supported for this 60 on the one hand on the ball element 58 and on the other hand on the opposite one Opening 50 surrounding edge of the auxiliary piston 44.
  • the piston rod 14 is radially displaceable by locking elements or segments 62, 64, 66, 68 interspersed.
  • connections 70 and 74, 76 become the work rooms 16, 18 are manufactured in order to actuate the cylinder 10 in dependence on the fluid application to the right - as shown in the figures - or to move to the left.
  • Connection bores 78, 80 via the working fluid as described below can flow between the sections 20, 22.
  • the end walls 82, 84 of the sections 20, 22 of the longitudinal bore 24 facing respective shift cylinders 26, 28 and auxiliary pistons 44, 46 have a peripheral surface such as Truncated cone, are therefore inclined to the direction of displacement of the shift cylinder 26, 28 or auxiliary pistons 44, 46.
  • the facing ones have a congruent course End faces 86 of the locking elements or segments 62, 64, 66, 68 to a low-friction interaction between the end wall 82 of the shift cylinders 26, 28 and the sliding surfaces 86 of the locking elements or segments 62, 64 along these 66, 68 to ensure.
  • the outer end face 88 of the auxiliary piston 44 runs parallel to the inner surface 90 of the shift cylinder 26 in order to allow a flat contact.
  • control rods leading to the outside extend from the end regions of the shift cylinders 26, 28 27, 29 from which the position of the cylinder can be checked.
  • the cylinder 10 is shown in its left end position. In this end position are the locking segments 62, 64 in the preferably ring-shaped Working chamber 16, which is also referred to as the receiving chamber.
  • the section 20 of the longitudinal bore 24 with working fluid applied. This causes the shift cylinder 26 to move in the direction of the partition 30 moved against the force caused by the spring 34.
  • the shift cylinder 26 comes - as shown in Fig. 1 - in engagement with the locking segments 62, 64, so that this is radially displaceable, that is adjustable in the direction of the axis of the piston rod 14 are.
  • Via the channels 70, 72 within which the locking segments 62, 64 can be moved are working fluid flows into the work space 16.
  • the cylinder 10 can be shifted to the right, as shown in FIG. Clarify 2 to 4.
  • the receiving chamber 16 in the direction of the sliding movement sloping face 92.
  • the course of a peripheral surface of a truncated cone corresponds to the corresponding end face 86 of the locking element 62, 64.
  • FIGS. 2 and 3 As a Comparison of FIGS. 2 and 3 further shows is at the beginning of the adjustment of the cylinder 10, the spring element 34 is tensioned more than the spring element 36. Between the end positions on the other hand, there is approximately the same spring tension.
  • Unlocking is only possible if not closer to the designated end face of the switching cylinder 28 acts on a working fluid with a force that overcome the force caused by the spring 36 and thus the shift cylinder 28 can be moved in the direction of the partition 30 in order to adjust the axial To enable locking segments 66, 68, whereby the cylinder 10 is released.
  • a pressure equalization between the left and right sections 20, 22 of the longitudinal bore 24 of the piston rod 14 then take place if, for example, the compression spring 34 is largely compressed and the compression spring 36 is largely relaxed, each acting on one of the shift cylinders 26 and 28 or the other way around.
  • This offers the possibility of several adjustment devices according to the invention to be connected in series, d. H. in a single working fluid circuit without there is a risk that the circuit may be blocked by one of the devices.
  • working fluid can flow through the opening 52 formed between the auxiliary piston 44 and the switching cylinder 26 annulus 100 flow another annulus 102, which is between the outer wall of the shift cylinder 26 and inner wall of the piston rod 14 extends. Flows through the annular space 102 then working fluid in the interior 54 of the shift cylinder 26 and passes through the Opening 32 of the partition 30 in the section 22 of the longitudinal bore 24 of the piston rod 14 so as to flow to another piston, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Paper (AREA)

Claims (13)

  1. Dispositif pour déplacer, ainsi que pour verrouiller dans des positions terminales, des éléments mobiles l'un par rapport à l'autre, en particulier des parties mobiles de voie, telles que des parties d'aiguilles ou de pointes de coeur, comprenant, un vérin actionné par un fluide de travail, comprenant un cylindre (10) à double effet et une tige de piston (14) montée fixe et percée d'un alésage longitudinal (24) chargeable par le fluide de travail et le long de laquelle peut coulisser le cylindre (10) qui de son côté peut être verrouillé dans des positions extrêmes correspondant aux positions terminales, avec un élément de liaison partant de ce cylindre pour le réglage de l'élément,
    caractérisé en ce qu'
    à l'intérieur de la tige de piston (14) peut coulisser axialement au moins un cylindre de commutation (26, 28) qu'un premier élément élastique (34, 36) peut faire coulisser contre la force produite par le fluide de travail, et
    la tige de piston partant de l'alésage longitudinal (24) est traversée par au moins un élément de verrouillage (62, 64, 66, 68) pouvant coulisser radialement et qui, quand le cylindre (10) occupe une position extrême s'étend localement dans une chambre de réception (16, 18) de ce cylindre et y est maintenu en contact avec le cylindre de commutation.
  2. Dispositif selon la revendication 1,
    caractérisé en ce qu'
    à l'intérieur du cylindre de commutation (26, 28) pouvant coulisser dans l'alésage longitudinal (24), peut coulisser un piston auxiliaire (44, 46) présentant un passage axial (48) qui dans une zone frontale se poursuit dans l'alésage longitudinal (24) de la tige de piston (14) tandis que l'autre zone frontale peut être obturée par une soupape antiretour (58, 60).
  3. Dispositif selon la revendication 2,
    caractérisé en ce que
    sur le piston auxiliaire (44, 46) agit un second élément élastique (38, 40) en particulier une rondelle Belleville pour rendre étanche le piston auxiliaire par rapport au cylindre de commutation (26, 28).
  4. Dispositif selon l'une quelconque des revendications 2 ou 3,
    caractérisé en ce qu'
    en l'absence d'étanchéité entre le piston auxiliaire (44, 46) et le cylindre de commutation (26, 28), le premier libère une liaison à un autre cylindre de commutation associé à une autre position finale de cylindre (10) ou à un autre dispositif monté en série avec le vérin à piston et cylindre.
  5. Dispositif selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    quand le cylindre (10) occupe une position extrême, il peut être bloqué par au moins un des éléments de verrouillage (62, 64, 66, 68) qui se trouvent dans la chambre de réception (16, 18) et qui sont maintenus par un des cylindres de commutation (26, 28) quand sur chacun de ceux-ci agit le fluide de travail avec une même pression, ou à peu près la même.
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    du cylindre de commutation (26, 28) part une tige de commutation surveillant la position du cylindre, cette tige s'étendant au moins en partie à l'intérieur de l'alésage longitudinal de la tige de piston (14).
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce qu'
    à l'intérieur de la paroi de la tige de piston passe une liaison (78, 80) qui va d'une chambre interne (54) entourant le cylindre de commutation (26, 28) à une chambre externe délimitée par l'autre cylindre de commutation et par l'alésage longitudinal quand le cylindre (10) est arrêté en une position extrême et quand les cylindres de commutation sont actionnés également ou à peu près également par le fluide de travail.
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    l'élément de verrouillage (62, 64, 66, 68) présente une dimension axiale qui est inférieure à celle de la chambre de réception (16, 18).
  9. Dispositif selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    le cylindre de commutation (26, 28) présente une face frontale en forme de tronc de cône qui interagit avec une face frontale correspondante, en forme de tronc de cône, de l'élément de verrouillage (62, 64, 66, 68).
  10. Dispositif selon la revendication 9,
    caractérisé en ce que
    la chambre de réception (16, 18) présente dans une zone frontale une géométrie correspondant à la face frontale en forme de tronc de cône de l'élément de verrouillage et, dans la zone opposée, elle est limitée par une paroi perpendiculaire à la course de coulissement du cylindre de commutation (26, 28).
  11. Dispositif selon la revendication 3 ou la revendication 3 et l'une quelconque des revendications 4 à 10,
    caractérisé en ce que
    le premier élément élastique (34, 36) qui se trouve à l'intérieur du cylindre de commutation (26, 28) s'appuie sur le second élément élastique (38, 40), tel qu'une rondelle Belleville, qui est serré entre le piston auxiliaire (44, 46) et le cylindre de commutation.
  12. Dispositif selon la revendication 3, ou la revendication 3 et l'une quelconque des revendications 4 à 11,
    caractérisé en ce que
    la soupape antiretour comprend un élément de fermeture tel qu'une bille (58), soumis à l'action d'un troisième élément élastique dont la force est inférieure à celle du premier élément élastique (34, 36) qui est elle-même inférieure à celle du deuxième élément élastique (38, 40).
  13. Système pour déplacer ainsi que pour verrouiller en position finale au moins deux éléments mobiles en particulier des parties mobiles de voie, telles que des parties d'aiguilles ou de pointes de coeur, comprenant, plusieurs vérins actionnés chacun par un fluide de travail, un vérin comprenant un cylindre (10) à double effet et une tige de piston (14) montée fixe et percée d'un alésage longitudinal chargeable par le fluide de travail, et le long de laquelle peut coulisser le cylindre (10) qui de son côté peut être verrouillé dans des positions extrêmes correspondant aux positions terminales, un élément de liaison partant de ce cylindre pour le réglage de l'élément,
    caractérisé en ce que
    les vérins sont montés en série et à l'intérieur de chaque tige de vérin (14) peut coulisser axialement au moins un cylindre de commutation (26, 28) qu'un élément élastique (34, 36) peut faire coulisser contre la force exercée par le fluide de travail,
    à l'intérieur du cylindre de commutation (26, 28) coulissant axialement dans l'alésage longitudinal (24), peut coulisser un piston auxiliaire (44, 46) présentant un passage axial (48) qui dans une zone frontale se prolonge dans l'alésage longitudinal (24) de la tige de piston (14) tandis que dans son autre zone frontale il peut être obturé par une soupape antiretour (58, 60), et
    en l'absence d'étanchéité entre le piston auxiliaire (44, 46) et le cylindre de commutation (26, 28), le premier libère une liaison à un autre (second) cylindre de commutation associé à une autre position finale du cylindre (10) ou à un autre dispositif monté en série avec un autre des vérins montés en série.
EP98102337A 1997-02-12 1998-02-11 Dispositif pour deplacer ainsi que verrouiller dans des positions terminales d'éléments mobiles l'un vers l'autre Expired - Lifetime EP0858938B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705294A DE19705294A1 (de) 1997-02-12 1997-02-12 Einrichtung zum Verstellen sowie Verriegeln in Endlagen von zueinander beweglichen Elementen
DE19705294 1997-02-12

Publications (3)

Publication Number Publication Date
EP0858938A2 EP0858938A2 (fr) 1998-08-19
EP0858938A3 EP0858938A3 (fr) 1999-04-21
EP0858938B1 true EP0858938B1 (fr) 2002-06-05

Family

ID=7819992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102337A Expired - Lifetime EP0858938B1 (fr) 1997-02-12 1998-02-11 Dispositif pour deplacer ainsi que verrouiller dans des positions terminales d'éléments mobiles l'un vers l'autre

Country Status (3)

Country Link
EP (1) EP0858938B1 (fr)
AT (1) ATE218460T1 (fr)
DE (2) DE19705294A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8684318B2 (en) 2010-09-16 2014-04-01 Spx International Limited Mechanical lock

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148645A1 (de) * 1971-09-29 1973-04-05 Siemens Ag Hydraulische steuerschaltung fuer auffahrbare elektrohydraulische weichenantriebe
DE2557574C3 (de) * 1975-12-20 1987-01-22 Fabeg Gmbh, 7518 Bretten Hydraulischer Weichenantrieb
DE2744969C3 (de) * 1977-10-06 1987-07-30 Fabeg Gmbh, 7518 Bretten Hydraulischer Weichenantrieb
DE3106708C1 (de) * 1981-02-23 1982-11-11 Siemens AG, 1000 Berlin und 8000 München Innenverschluß-Weichenantrieb
US4637579A (en) * 1983-02-10 1987-01-20 General Signal Corporation Railroad switch mechanism
SI9300651A (en) * 1992-12-17 1994-06-30 Voest Alpine Eisenbahnsysteme Device for bolding movable parts of railway switches
DE4332493C2 (de) * 1993-09-24 2002-12-12 Butzbacher Weichenbau Gmbh Stelleinrichtung
AT401763B (de) * 1994-05-16 1996-11-25 Vae Ag Einrichtung zum verriegeln von beweglichen weichenteilen

Also Published As

Publication number Publication date
EP0858938A2 (fr) 1998-08-19
EP0858938A3 (fr) 1999-04-21
ATE218460T1 (de) 2002-06-15
DE19705294A1 (de) 1998-08-13
DE59804269D1 (de) 2002-07-11

Similar Documents

Publication Publication Date Title
DE69411383T2 (de) Hydraulischer bohrlochschlagschieber mit wartezeitreduzierung
EP0381069A1 (fr) Manchon d'accouplement pour lignes d'interconnexion hydraulique
WO2005093299A1 (fr) Dispositif pour entrainer une soupape a double siege
DE19642718A1 (de) Stößel für einen Ventiltrieb einer Brennkraftmaschine
EP1753985B1 (fr) Entrainement lineaire hydraulique, en particulier actionneur de transmission hydraulique
DE102010008167B4 (de) Schieberventil eines Türbetätigers
EP0858938B1 (fr) Dispositif pour deplacer ainsi que verrouiller dans des positions terminales d'éléments mobiles l'un vers l'autre
EP0896915B1 (fr) Appareillage de positionnement
DE3807669C2 (fr)
EP3344881B1 (fr) Vérin de blocage hydromécanique et système de commande hydraulique pour l'actionner
DE69601157T2 (de) Druckreduzierventil
DE10316838B3 (de) Kolbeneinrichtung und mit einer Kolbeneinrichtung ausgeführte Kolben-Zylinder-Anordnung
EP1416165A2 (fr) Vérin pneumatique
EP2157348A1 (fr) Dispositif d'actionnement bistable pour une soupape
EP0457030A1 (fr) Cylindre de frein à ressort pour freins actionnés par moyen de pression pour véhicules routiers
DE102017214931B4 (de) Hydraulisches Umschaltsitzventil und Leistungs- Trennschaltervorrichtung
DE2450330C3 (de) Doppelhydraulischer Stellantrieb
DE10356597B3 (de) Verriegelungszylinder
DE2915505A1 (de) Kraftbegrenzer fuer eine stellstange
DE3506596A1 (de) Steuerventil zum steuern der druckbeaufschlagung eines hydraulikstellgliedes
EP1517068A2 (fr) Dispositif actionneur pour bôite de vitesses d'automobile
DE20011789U1 (de) Druckmittelbetriebener Arbeitszylinder mit mechanischer Wegsperrung im drucklosen Zustand
EP0224787B1 (fr) Dispositif de rattrapage de jeu pour tringlerie de frein de véhicules ferroviaires
DE2002718A1 (de) Servo-Betaetigungsvorrichtung
WO2010012419A1 (fr) Dispositif à vanne hydraulique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB IT LI NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BWG BUTZBACHER WEICHENBAU GESELLSCHAFT MBH & CO. K

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990512

AKX Designation fees paid

Free format text: AT CH DE ES FR GB IT LI NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010824

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BWG GMBH & CO. KG

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI NL

REF Corresponds to:

Ref document number: 218460

Country of ref document: AT

Date of ref document: 20020615

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59804269

Country of ref document: DE

Date of ref document: 20020711

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020805

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030306

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060214

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20060215

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060216

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060228

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070211

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20070901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20071030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070901

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070211

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060221

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070211