EP0315621A2 - Dispositif de commutation pour pièces mobiles dans la zone de déviation d'un aiguillage ferroviaire - Google Patents

Dispositif de commutation pour pièces mobiles dans la zone de déviation d'un aiguillage ferroviaire Download PDF

Info

Publication number: EP0315621A2
Authority: EP; European Patent Office
Prior art keywords: rails; support; rail; thrust; support rod
Prior art date: 1987-11-05
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

Application number

EP88890269A

Other languages

German (de)

English (en)

Other versions

EP0315621B1 (fr

EP0315621A3 (en

Inventor

Gerald Durchschlag

Alfred Lang

Franz Dipl.-Ing. Rotter

Dieter Fritz

Heinz Kopilovitsch

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 Zeltweg GmbH

Original Assignee

Voest Alpine Maschinenbau GmbH

Voestalpine Weichensysteme 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.)

1987-11-05

Filing date

1988-10-28

Publication date

1989-05-10

1987-11-05 Priority claimed from AT0293187A external-priority patent/AT391500B/de

1988-09-16 Priority claimed from AT227488A external-priority patent/AT400860B/de

1988-10-28 Application filed by Voest Alpine Maschinenbau GmbH, Voestalpine Weichensysteme GmbH filed Critical Voest Alpine Maschinenbau GmbH

1989-05-10 Publication of EP0315621A2 publication Critical patent/EP0315621A2/fr

1990-02-14 Publication of EP0315621A3 publication Critical patent/EP0315621A3/de

1992-12-23 Application granted granted Critical

1992-12-23 Publication of EP0315621B1 publication Critical patent/EP0315621B1/fr

2008-10-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/02—Tongues; Associated constructions
- E01B7/06—Constructions with flexible tongues or flexible fishplates
- 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
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/02—Tongues; Associated constructions
- E01B7/08—Other constructions of tongues, e.g. tilting about an axis parallel to the rail, movable tongue blocks or rails

Definitions

the invention relates to a changeover device for moving parts of a rail switch in the deflection area of a switch, in particular tongue rails, monorail deflection devices or movable stock rails, in which the movable rails can be brought into contact with rigid switch parts.
the invention now aims to provide a switching device of the type mentioned for the moving parts of a rail switch in the deflection area of a switch, in particular for the tongue rails or movable stock rails, and in particular for switches which can be driven through at high speed, with which it can be carried out in a simple manner it is possible to exactly maintain the desired curve radius during the changeover and at the same time to ensure safe tracking.
the changeover device according to the invention is also intended to reduce the outlay as it would have to be carried out in the case of a plurality of closures of conventional design and the number of drives required, in particular in the case of long, displaceably mounted bearings in order to achieve large curve radii Reduce the area of the tongue rails considerably.
the invention consists essentially in the fact that the movable rails are supported in their adjoining position by support rods which run in the longitudinal direction of the rails and are displaceably guided on the sleepers or support plates in the longitudinal direction of the rails, and that the support rods are designed as an actuator for the changeover are and have thrust supports which cooperate with thrust supports of the movable rails for displacing the rails, at least one of the interacting surfaces of the thrust supports of the rail and / or support rod being formed by a wedge surface which merges into a support surface which is essentially parallel to the longitudinal direction of the support rod which support surface in the adjacent position of the rail interacts with the thrust support of the rail.
the adjustment can be carried out by selecting the surfaces of the thrust supports that come into contact with one another in such a way that the adjustment is carried out on a plurality of partial regions of the movable rails lying alongside one another in the longitudinal direction of the rail while maintaining the required large radius of curvature, so that the ability to drive at high speed is ensured.
the design can advantageously be such that one of the two interacting thrust supports has a role.
the wedge surfaces themselves can be formed by flat wedge surfaces, it naturally being conceivable to design the wedge surfaces as curved surfaces, in particular as concave curved surfaces.
the design is advantageously made such that thrust supports of the support rod (s) and / arranged in the longitudinal direction or the movable rail parts have different heights and / or inclinations of the wedge surfaces.
three or even four turnout drives of conventional design would be required with such designs for high-speed turnouts, the coordination and interrelated control of which would be associated with a considerably higher effort and, at the same time, only in the case of temperature fluctuations and corresponding changes in length with corresponding play could attack the tongue rails.
each support rod and each rail have at least three thrust supports, whereby longer, movable rail sections can be shifted to a precisely defined extent and the desired curve radius can be set exactly.
the rails themselves can be connected to one another in a conventional manner by tie rods, so that the displacement of one of the movable rails in the direction of contact with a rigid switch part simultaneously displaces the opposite, movable rail while maintaining a predetermined distance from the opposite, rigid switch part.
separate support rods can be provided for each movable rail, the drive having to be out of phase in such a way that for the purpose of moving a rail in contact with a rigid switch part, the opposite rail to be lifted off the rigid switch part is first released from its locking position .
the design can also be realized according to the invention in a particularly simple manner so that thrust supports are arranged on both sides of a support rod, the support surfaces of which are essentially parallel to the longitudinal direction of the support rod and are arranged offset in the longitudinal direction of the support rod.
the design can be made in a particularly simple manner so that the thrust supports are attached Attack coupling members of mutually assigned movable rails.
the design can also be such that the thrust supports connected to a support rod have cranked strips which extend transversely to the longitudinal axis of the support rod and the strips of which extend towards and away from the thrust support Flanks with at least one counter-stop, in particular a roller, interact with the thrust support of the rail. Even with such a design, it is possible to make the simultaneous adjustment of two movable rails with only one support rod in such a way that one rail comes into contact with a rigid switch part and the other rail is lifted from such a system to rigid switch parts .
the safety and control devices required for the position control can be designed in a simple manner in such a way that the support rods with devices for detecting the position of the support rods, such as e.g. electromagnetic limit switches or inductive proximity switches.
the procedure according to the invention is such that the support rod (s) is (are) displaceably guided in guides connected to the sleepers or base plates and extending in the longitudinal direction of the rails, for example angle profiles, the angle profiles advantageously being welded to the base plates could be.
such angle profiles also serve to additionally absorb the transverse forces.
the design according to the invention is advantageously made such that the support rod (s) in the guides are (are) supported on rollers and / or resiliently.
a resilient support ensures in particular that, in the case of badly stuffed tracks and thus in the case of non-aligned upper edges of the sleepers, reliable guidance of the support rods is ensured even over great lengths.
FIG. 1 shows a changeover device according to the invention for the movable tongue rails of a switch
2 shows another embodiment of a changeover device according to the invention for movable tongue rails of a switch
3 shows a changeover device according to the invention for movable stock rails of a switch
4 shows a first embodiment of a support rod with thrust supports arranged on both sides on an enlarged scale compared to the previous figures
FIG. 5 shows another embodiment of a double thrust support arrangement in a representation analogous to FIG.
Fig.1 are rigid and the like with thresholds not shown with the interposition of base plates or the like. fix screwed jaw rails with 1 and 2 and movable tongue rails with 3.
support rods 4 are provided, which are arranged in the longitudinal direction of the linearly running stock rail 1 and are guided in schematically indicated guides 5, for example fixed on sleepers.
Drives 6 are provided for actuating the support rods 4 for converting the tongue rails, which can be formed, for example, by electric lifting motors or hydraulic cylinders.
the support rods 4 have thrust supports 7, each of which has a wedge surface 8 which merges into a support surface 9 which is essentially parallel to the longitudinal direction of the support rods 4.
the thrust supports 7 interact with their wedge surfaces 8 or their support surfaces 9, which are essentially parallel to the support rods 4, with thrust supports 10 provided on the tongue rails 3.
the tongue rails are connected to one another via schematically indicated tongue connections 11.
tongue supports 12 between the stock rails 1 and 2 and the tongue rails 3 are also indicated.
the two support rods or thrust supports 4 are acted upon by the drives 6 in each case in the same direction, whereby to change the position shown in FIG. 1, a movement of the push rods 4 just formed and moving only in the longitudinal direction occurs the arrow 13 is indicated.
the secured position is first released by the push supports 10 of the tongue rail 3 resting against the stock rail 1 disengaging from the surfaces 9 running parallel to the push rod 4, whereupon the push rods are displaced further 4, in the direction of arrow 13, the wedge surfaces 8 of the thrust supports 7 assigned to the second tongue rail 3 engage with the thrust supports 10 of this tongue rail and, by means of the tongue connections 11, bring about a changeover of the switch.
the locking in the end position is again effected by the surfaces 9 resting on the thrust supports 10 in the end position of the push rods 4.
the surfaces 9 resting on the thrust supports 10 in the end position of the push rods 4. In order to take into account the curvature behavior of the tongue rails with push rods 4 arranged essentially parallel to the stock rail 1, they are on the tongue rails 3 provided with the thrust supports 7 cooperating thrust supports 10 are formed with different dimensions and the thrust supports 7 have wedge surfaces 8 with different inclinations, depending on the curvature behavior of the tongue rails 3 and at different distances from the push rods 4 parallel support surfaces 9.
rollers can be provided in the area of the contact surface of the thrust supports 10, for example, wedge surface profiles deviating from a straight wedge surface 8 can also be selected for easy rolling of such rollers.
the thrust supports 10 can be designed at least over a partial area with an inclination designed in accordance with the thrust support interacting therewith.
support rods extending essentially in the longitudinal direction of the stock rail 1 are again provided, wherein in the embodiment shown in FIG. 2 these support rods are of split design and the parts of the support rods are designated by 14 and 15, respectively.
thrust supports 7 with wedge surfaces 8 and essentially parallel to the longitudinal direction of the support rods 14, 15 are provided support surfaces 9, which cooperate with thrust supports 10 for adjusting and locking the tongue rails in each case in a position in contact with the stock rails.
the drive in the embodiment according to FIG. 2 is shown schematically by an approximately central length of the entire support rods 14, 15 indicated engine 16 is formed, further gear 17 are indicated.
the conversion of the rotary movement of the motor to a purely translatory movement of the support rods 14, 15 takes place, for example, via toothed racks 18, by means of which the support rods 14, 15 are connected to one another: d.
FIGS. 1 and 2 other known drives can be provided, for example, instead of the drives 6 of FIG. 1, a common drive for a translational movement of the support rods 4 is conceivable, in which the support rods are coupled to one another. It is also conceivable to use angle levers for transmitting an adjustment movement of a drive into a purely translatory movement of the support rods, these angle levers having suitable link guides or recesses in a manner known per se. This angle lever or the like on turntables. be provided, which are coupled, for example, to a conventional switching device for switches arranged transversely to the longitudinal direction of the rails.
FIG. 3 shows a changeover device for a monorail deflection device with a movable stock rail.
the movable sections of the stock rail are designated 19 and the rigid intermediate rails fixedly attached to sleepers or base plates, not shown, are designated 20 and 21, the intermediate rails 20 representing parts of the stock rails and the intermediate rails 21 as parts of the tongue rails in comparison with 1 and 2 can be seen.
Connection rails 22 are also shown.
the movable sections of the stock rails 19 are connected to one another via connecting rods 23 similar to the connecting rods 11 of FIGS. 1 and 2.
support rods 24 are again provided in the longitudinal direction, which are indicated schematically and again are guided and supported with 5 designated guides.
Electric lift motors or hydraulic cylinder-piston units 25 are again provided as the drive.
the support rods 24 in turn have thrust supports 7 with wedge surfaces 8 and support surfaces 9 running essentially parallel to the longitudinal direction of the support rods 24.
the thrust supports 10 of the movable parts of the stock rails 19 interacting with the thrust supports 7, like the individual thrust supports, are designed differently from one another in accordance with the curvature behavior of the stock rail 19.
stops 26 are further provided on the intermediate rails 22 and stops 27 on sleepers or base plates in a manner not shown.
the drives 25 are controlled so that the locking achieved by the interaction of the thrust supports 10 with the support surfaces 9 is released, whereupon a shift of the support rods 24 by a cooperation of the wedge surfaces 8 with the thrust supports 10 Stock rails in the other end position.
large forces are transmitted to them, so that a correspondingly stable and massive design of the support rods 24 must be provided with a corresponding drive.
a tongue rail 28, which rests on a stock rail 29, is shown in an enlarged representation compared to the previous figures.
a thrust support 30 is connected, in which rollers 31 are mounted, which cooperate with thrust supports 32 of a support rod 33 that is movable only in the longitudinal direction of the rail.
the thrust supports 32 in turn have inclined wedge surfaces 34 and support surfaces 35 running essentially parallel to the longitudinal direction of the support rod 33.
the tongue rail is locked by the interaction of the support surface 35 facing the rail with a stop surface 36 provided in the plane of the roller 31.
the support rod 33 is opened or switched when the support rod 33 moves in the direction of arrow 37 first unlocking the abutting surfaces 35 and 36, whereupon the roller 31, which is more distant from the tongue rail 28, comes into engagement with the outer wedge surface 34 and thus pulls the tongue rail 28 away from the stock rail 29.
a plurality of thrust supports are arranged on the support rod 33 in the longitudinal direction analogous to the preceding figures. In such an embodiment of a double thrust support arrangement, a coupling of the tongue rails, as shown in FIGS.
the thrust support 30 shown in FIG. 4, which is connected to the tongue rail 28, is designed as a tongue connection, as was designated 11 in FIG. 1, for example.
the tongue rail 28 is again shown in contact with a stock rail 29 and connected to a thrust support 38.
the thrust support 38 has rollers 39 and 40, which in an extension 41 of the Thrust support 38 are mounted and encompass a bar 42 which is connected to a thrust support 43 connected to the support rod 33.
the strip 42 which extends, for example, outside the plane of the support rod 33, has a first wedge surface 44 which merges into a first support surface 45 which is essentially parallel to the longitudinal direction of the support rod 33 and with which the roller 39 interacts, and a second wedge surface or inclined surface 46, which merges into a second support surface 47.
a support rod with thrust supports can be dispensed with in the embodiment shown, in the event that such a thrust support is assigned to each tongue rail, on connecting rods or tie rods between the tongue rails.
changeover devices for a switch with support rods running in the longitudinal direction of the rails and only moving in translation is in accordance with the present invention particularly advantageous for turnouts with large bows, in which several closures of conventional design would have to be provided.
the changeover device according to the invention it can be found that the support rods associated with movable rails are adjusted and secured, and a targeted support and adjustment of the curvature of the movable parts of the switch by a desired number of appropriately designed thrust supports on these support rods, which are dimensioned accordingly Interact stops on the movable switch parts can be achieved in a simple manner.
the tongue is clamped between the thrust supports by means of the connecting rods each time with a suitable arrangement of the stops on the tongue rails, whereby twisting or twisting of the tongue rails is excluded and thus the correct installation of the tongue rails at every point and the exactness of the running edge course is always guaranteed.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Railway Tracks (AREA)
Train Traffic Observation, Control, And Security (AREA)
Platform Screen Doors And Railroad Systems (AREA)
Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Near-Field Transmission Systems (AREA)
Color Television Systems (AREA)
Vehicle Body Suspensions (AREA)
Gear-Shifting Mechanisms (AREA)
Details Of Television Scanning (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)
Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Image Input (AREA)
Toys (AREA)
Pinball Game Machines (AREA)
Machines For Laying And Maintaining Railways (AREA)

EP88890269A 1987-11-05 1988-10-28 Dispositif de commutation pour pièces mobiles dans la zone de déviation d'un aiguillage ferroviaire Expired - Lifetime EP0315621B1 (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
AT0293187A AT391500B (de)	1987-11-05	1987-11-05	Umstellvorrichtung fuer bewegliche teile einer schienenweiche
AT2931/87		1987-11-05
AT227488A AT400860B (de)	1988-09-16	1988-09-16	Umstellvorrichtung für bewegliche teile im ablenkungsbereich einer schienenweiche
AT2274/88		1988-09-16

Publications (3)

Publication Number	Publication Date
EP0315621A2 true EP0315621A2 (fr)	1989-05-10
EP0315621A3 EP0315621A3 (en)	1990-02-14
EP0315621B1 EP0315621B1 (fr)	1992-12-23

Family

ID=25598099

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88890269A Expired - Lifetime EP0315621B1 (fr)	1987-11-05	1988-10-28	Dispositif de commutation pour pièces mobiles dans la zone de déviation d'un aiguillage ferroviaire

Country Status (11)

Country	Link
US (1)	US4927102A (fr)
EP (1)	EP0315621B1 (fr)
AT (1)	ATE83813T1 (fr)
DE (1)	DE3876950D1 (fr)
DK (1)	DK167668B1 (fr)
ES (1)	ES2038343T3 (fr)
GR (1)	GR3007432T3 (fr)
IN (1)	IN170171B (fr)
NO (1)	NO173251C (fr)
PL (1)	PL159272B1 (fr)
YU (1)	YU47827B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0480303A3 (en) *	1990-10-10	1993-11-18	Sasib Spa	Operating device for railway switches, particularly for high-speed lines
WO2007102014A1 (fr) *	2006-03-09	2007-09-13	Robert Windsor Simmons	Aiguillage ferroviaire
FR2930503A1 (fr) *	2008-04-29	2009-10-30	Alstom Transport Sa	Aiguillage comprenant des moyens de commande electriques et manuels
EP3271511A4 (fr) *	2015-03-16	2019-06-12	Ve'rtex Sweden AB	Mécanisme d'aiguillage et procédé pour faire fonctionner un mécanisme d'aiguillage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0420618D0 (en) *	2004-09-16	2004-10-20	Westinghouse Brake & Signal	Point drive system
GEP201706726B (en) *	2016-05-24	2017-08-25		Point switch
CN113049033A (zh) *	2021-03-11	2021-06-29	安徽理工大学	一种基于曲柄滑块机构的矿井下拨叉装置

Family Cites Families (13)

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US770614A (en) *		1904-09-20		Moore
US29353A (en) *		1860-07-31		Ratchet-drill
US528776A (en) *		1894-11-06		Railroad-frog
FR341986A (fr) *	1903-07-21	1904-08-24	Richard St George St George Mo	Perfectionnements dans les aiguillages de chemins de fer et de toutes voies ferrées
GB191123285A (en) *	1911-10-21	1912-04-18	Edward Wood	Improvements in Means for Operating and Locking Railway and like Points or Switches.
US1269444A (en) *	1917-10-20	1918-06-11	Newton Hollingshed	Switch.
US1371937A (en) *	1920-09-15	1921-03-15	James P Scartsaris	Automatic railway-switch-operating mechanism
US1569141A (en) *	1924-07-29	1926-01-12	Rife William Harison	Swinging-rail switch frog
US1827158A (en) *	1929-08-05	1931-10-13	Wilber E Mceldowney	Swing-rail switch
DE1158538B (de) *	1960-08-16	1963-12-05	Krug & Co Heinrich	Zungenweiche, bei der die Zungen in vertikaler Richtung verstellbar gelagert sind
USRE29353E (en)	1971-11-29	1977-08-16	Vought Corporation	Switching system for a transportation system employing a guideway
AT328488B (de) *	1974-10-15	1976-03-25	Voest Ag	Vignolschienenweiche
DE3623743A1 (de) *	1986-07-14	1988-01-21	Lautenschlaeger Kg Karl	Ausziehfuehrung

1988
- 1988-10-21 YU YU202188A patent/YU47827B/sh unknown
- 1988-10-21 IN IN868/CAL/88A patent/IN170171B/en unknown
- 1988-10-28 ES ES198888890269T patent/ES2038343T3/es not_active Expired - Lifetime
- 1988-10-28 EP EP88890269A patent/EP0315621B1/fr not_active Expired - Lifetime
- 1988-10-28 DE DE8888890269T patent/DE3876950D1/de not_active Expired - Fee Related
- 1988-10-28 AT AT88890269T patent/ATE83813T1/de not_active IP Right Cessation
- 1988-11-04 PL PL1988275619A patent/PL159272B1/pl unknown
- 1988-11-04 NO NO884939A patent/NO173251C/no unknown
- 1988-11-04 DK DK617788A patent/DK167668B1/da not_active IP Right Cessation
- 1988-11-07 US US07/267,876 patent/US4927102A/en not_active Expired - Fee Related
1993
- 1993-03-23 GR GR930400619T patent/GR3007432T3/el unknown

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0480303A3 (en) *	1990-10-10	1993-11-18	Sasib Spa	Operating device for railway switches, particularly for high-speed lines
EP0712772A3 (fr) *	1990-10-10	1996-11-20	Sasib Spa	Dispositif de commande pour aiguillages de voies ferrées, en particulier pour lignes à grande vitesse
WO2007102014A1 (fr) *	2006-03-09	2007-09-13	Robert Windsor Simmons	Aiguillage ferroviaire
GB2435893B (en) *	2006-03-09	2011-03-23	Robert Windsor Simmons	A railway switch
FR2930503A1 (fr) *	2008-04-29	2009-10-30	Alstom Transport Sa	Aiguillage comprenant des moyens de commande electriques et manuels
EP2113438A1 (fr) *	2008-04-29	2009-11-04	Alstom Transport S.A.	Aiguillage comprenant des moyens de commande électriques et manuels
KR101608070B1 (ko)	2008-04-29	2016-03-31	알스톰 트랜스포트 에스에이	전기 및 수동 제어 수단을 포함하는 포인트 시스템
EP3271511A4 (fr) *	2015-03-16	2019-06-12	Ve'rtex Sweden AB	Mécanisme d'aiguillage et procédé pour faire fonctionner un mécanisme d'aiguillage
US10724179B2 (en)	2015-03-16	2020-07-28	Ve'rtex Sweden Ab	Railway switch mechanism and method for operating a railway switch mechanism

Also Published As

Publication number	Publication date
US4927102A (en)	1990-05-22
EP0315621B1 (fr)	1992-12-23
YU202188A (en)	1991-06-30
PL275619A1 (en)	1989-07-10
NO173251B (no)	1993-08-09
DK617788D0 (da)	1988-11-04
GR3007432T3 (fr)	1993-07-30
DE3876950D1 (de)	1993-02-04
NO884939D0 (no)	1988-11-04
NO173251C (no)	1993-11-17
EP0315621A3 (en)	1990-02-14
NO884939L (no)	1989-05-08
IN170171B (fr)	1992-02-22
DK617788A (da)	1989-05-06
PL159272B1 (pl)	1992-12-31
YU47827B (sr)	1996-01-09
ATE83813T1 (de)	1993-01-15
DK167668B1 (da)	1993-12-06
ES2038343T3 (es)	1993-07-16

Legal Events

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1989-03-24	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
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