EP0197252B1 - Device for generating lift-well information - Google Patents

Device for generating lift-well information Download PDF

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Publication number
EP0197252B1
EP0197252B1 EP86101380A EP86101380A EP0197252B1 EP 0197252 B1 EP0197252 B1 EP 0197252B1 EP 86101380 A EP86101380 A EP 86101380A EP 86101380 A EP86101380 A EP 86101380A EP 0197252 B1 EP0197252 B1 EP 0197252B1
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EP
European Patent Office
Prior art keywords
elevator car
hoistway
predeterminate
pulse generator
drive pulley
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Expired
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EP86101380A
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German (de)
French (fr)
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EP0197252A1 (en
Inventor
Kenneth Dipl.-Ing. Smith
Renato Ferrario
Hans Dipl.-Ing. Eth Hochstrasser
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Inventio AG
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Inventio AG
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Priority to AT86101380T priority Critical patent/ATE36143T1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492—Position or motion detectors or driving means for the detector

Definitions

  • the invention relates to a device for generating shaft information in an elevator, wherein an elevator car is connected to a position transmitter, by means of which positions of the elevator car that match at least certain shaft locations can be determined.
  • a memory is also provided, in which the location numbers identifying the specific shaft locations are stored.
  • a coded floor number transmitter and a corresponding code reader are installed on each landing on each landing door. In the event of asynchronism or data loss with a cabin on the floor, this facility reads in the floor number from the shaft door horizontally moving past the code reader.
  • the invention has for its object to provide a device of the type mentioned, the design effort is largely independent of the number of shaft information and floors and in which fewer shaft installations and fewer conductors are required in the hanging cable compared to the prior art.
  • a transmission element which transmits the elevator movements without slippage through a positive fit via the drive pulley to a pulse generator in the machine room.
  • a memory is provided in which, in a known manner, certain chimney locations are stored, which are successively transferred to a register in the course of a journey depending on the direction of travel.
  • the position transmitter has a counter, in which corresponding location numbers are formed during the journey of the respective position of the elevator car.
  • the register and the counter are connected to a comparator which, as usual, compares the local numbers. If they are identical, a signal representing shaft information is generated and a switching element assigned to the relevant shaft location is activated.
  • FIG. 1 denotes an elevator shaft in which an elevator car 4 driven by a conveyor machine 2 via a conveyor cable 3 is guided.
  • a pulse generator 5 in the form of a digital tachometer is coupled to a drive pulley 6 which can be driven by means of a belt 8 fastened to the elevator car 4 and guided over a deflection roller 7 arranged at the lower end of the shaft.
  • the torque is transmitted to the drive pulley 6 by means of a positive fit, which can be produced, for example, through holes provided in the band 8, into which teeth arranged on the drive pulley 6 engage.
  • the pulse generator 5 and a counter 9 form a position transmitter, the pulse generator 5 generating a pulse, for example, per 1 mm of travel of the elevator car 4, and the pulses in the counter 9 are summed up to local numbers which correspond to the respective car position and are based on a specific basis, for example cover the floor of the car when the elevator car 4 is in the lowest stop.
  • KUET, KSE1, KSE2 and KSE3 denote contacts of a safety circuit which can be actuated by means of switching elements 10, 11, 12, 13, for example in the form of relays, when the elevator car 4 drives past certain shaft locations.
  • the one contact is KUET a door bridging contact to be switched in the door area during travel and the other contacts KSE1, KSE2 and KSE3 shaft end contacts, by means of which the delay of the elevator car 4 when entering a final stop can be controlled.
  • the particular chute locations are identified by location numbers which are stored in a memory 14 which is connected to a register 15.
  • the register 15 and the counter 9 of the position transmitter are connected to a comparator 16, the register 15 and the counter 9 being the registers of a microprocessor 17, the arithmetic unit of which forms the comparator 16.
  • the memory 14 in the form of a read-write memory, the microprocessor 17 and a read-only memory 18 are connected to one another via a bus 19 and, together with a clock generator 20, form a microcomputer 21.
  • An address decoder 22 is connected to the inputs on the bus 19 and with an output a bus driver 23 connected.
  • the bus driver 23 is connected on the input side to the pulse generator 5 and on the output side to a data conductor of the bus 19.
  • Further outputs of the address decoder 22 are connected to further bus drivers 24, 25, 26 and 27, which are connected on the output side to the Realis 10, 11, 12 and 13.
  • the microcomputer 21 and the pulse generator 5 are connected to a buffered supply 28 connected to a three-phase network RSTO, so that the operation of the device is ensured in the event of a mains voltage failure and no data loss occurs.
  • the pulse generator 5 is set in synchronous motion by the belt 8 via the drive pulley 6 and the bus driver 23 is activated with the aid of the address decoder 22, so that the pulses generated by the pulse generator 5 are transmitted and summed up to local numbers in the counter 9 can.
  • the location number of the particular shaft location closest to the starting location of the elevator car 4 in the direction of travel is then transferred from the memory 14 into the register 15.
  • the location numbers of the counter 9 and the register 15 are now continuously compared with one another in the comparator 16.
  • the address of the location number of the relevant shaft location is decoded in the address decoder 22 and the assigned bus driver is activated, whereupon the downstream relay is excited and its contact is actuated. Thereafter, the location number of the next determined shaft location closest in the direction of travel is transferred to the register 15 and continued in the manner described above.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Elevator Control (AREA)
  • Types And Forms Of Lifts (AREA)
  • Calculators And Similar Devices (AREA)
  • Escalators And Moving Walkways (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PCT No. PCT/CH86/00022 Sec. 371 Date Dec. 1, 1986 Sec. 102(e) Date Dec. 1, 1986 PCT Filed Feb. 18, 1986.Hoistway data which are indicative of predetermined elevator car positions at respective predeterminate hoistway locations, are generated without installations of actuating members in the elevator hoistway and transmitters at the elevator car. For this purpose, a memory is provided and has stored predeterminate positional numbers representative of the predeterminate hoistway locations. The predeterminated positional numbers are transmitted to a register in a travel direction dependent sequence during travel of the associated elevator car. A pulse transmitter is driven by the elevator car and the thus generated pulses are summed-up in a counter to positional numbers which correspond to respective car positions. The positional numbers of the counter and the predeterminate positional numbers transmitted to the register are compared with one another during travel in a comparator during elevator car travel. In case of identity, a signal representing a hoistway datum is generated and a switching member associated with the respective hoistway location is activated.

Description

Die Erfindung betrifft eine Einrichtung zur Erzeugung von Schachtinformationen bei einem Aufzug, wobei eine Aufzugskabine mit einem Positionsgeber verbunden ist, mittels welchem zumindest mit bestimmten Schachtorten übereinstimmende Positionen der Aufzugskabine feststellbar sind.The invention relates to a device for generating shaft information in an elevator, wherein an elevator car is connected to a position transmitter, by means of which positions of the elevator car that match at least certain shaft locations can be determined.

Bei einer mit der CH-Ps 357 173 bekannt gewordenen Aufzugssteuerung sind bestimmte Schachtorte durch Binärzahlen gekennzeichnet. Zum Zwecke der Erzeugung von den Binärzahlen entsprechenden Signalen wird eine Kodiereinrichtung vorgeschlagen, bei der auf der Aufzugskabine vier Geberelemente in Form von Schnappschaltern befestigt sind, mittels welchen zwei verschiedene stationäre Schaltzustände erzeugt werden können. Diese Schnappschalter werden bei der Vorbeifahrt der Aufzugskabine an im Aufzugsschacht angeordneten Betätigungsorganen in Form von Gleitbahnen betätigt. Um die Anzahl Betätigungsorgane möglichst klein zu halten ist der Kodierung der Graykode zugrunde gelegt, wobei lediglich ein Betätigungsorgan pro Schachtort benötigt wird. Die auf mechanischer Basis arbeitende Kodiereinrichtung ist störanfällig, so dass es zu Fehlschaltungen kommen kann. Mit der CH-PS 622 226 wird eine Einrichtung vorgeschlagen, die diesen Nachteil vermeidet. Hierbei bestehen die auf der Aufzugskabine befestigten Geber aus bistabilen Magnetschaltern und die im Aufzugsschacht angeordneten Betätigungsorgane aus Schaltmagneten.In the case of an elevator control system which became known with CH-Ps 357 173, certain shaft locations are identified by binary numbers. For the purpose of generating signals corresponding to the binary numbers, a coding device is proposed in which four transmitter elements in the form of snap switches are fastened on the elevator car, by means of which two different stationary switching states can be generated. These snap switches are actuated in the form of slideways when the elevator car drives past actuators arranged in the elevator shaft. In order to keep the number of actuators as small as possible, the coding of the gray code is used, whereby only one actuator per shaft location is required. The coding device, which works on a mechanical basis, is susceptible to faults, so that incorrect switching can occur. CH-PS 622 226 proposes a device which avoids this disadvantage. The sensors attached to the elevator car consist of bistable magnetic switches and the actuators arranged in the elevator shaft consist of switching magnets.

Der Nachteil der vorstehend beschriebenen Einrichtungen liegt darin, dass derfür den Einbau der Betätigungsorgane im Aufzugsschacht erforderliche Aufwand an Haltevorrichtungen sowie Montage-und Einstellarbeiten beträchtlich ist und mit der Anzahl der Stockwerke und der für die Steuerung benötigten Schachtinformationen noch wächst. Hinzu kommt, dass bei vielen Aufzügen vierstellige Geber für die Erfassung aller Schachtinformationen nicht genügen, so dass für die Signalübertragung mehr als vier Leiter im Hängekabel vorgesehen werden müssen.The disadvantage of the devices described above is that the effort required for the installation of the actuators in the elevator shaft for holding devices as well as assembly and adjustment work is considerable and increases with the number of floors and the shaft information required for the control. In addition, four-digit encoders are not sufficient for the collection of all shaft information in many elevators, so that more than four conductors must be provided in the hanging cable for signal transmission.

Aus der Druckschrift US-A-4 494 628 ist eine Einrichtung zur Erzeugung von Schachtinformationen bei einem Aufzug, dessen Aufzugskabine mit einem Positionsgeber verbunden ist, mit dem mit bestimmten Schachtorten übereinstimmende Positionen der Aufzugskabine feststellbar sind und der einen Zähler aufweist, in welchem während der Fahrt der jeweiligen Position der Aufzugskabine entsprechende Ortszahlen gebildet werden, bekannt.From the document US-A-4 494 628 is a device for generating shaft information in an elevator, the elevator car is connected to a position transmitter, with which positions of the elevator car that match certain shaft locations can be determined and which has a counter, in which during the Local numbers corresponding to the respective position of the elevator car are known.

In dieser Einrichtung ist ferner ein Speicher vorgesehen, in welchem die bestimmte Schachtorte kennzeichnenden Ortszahlen gespeichert sind. Pro Stockwerk ist zudem an jeder Schachttüre ein codierter Stockwerknummer-Geber und an der Kabine ein entsprechender Code-Leser installiert. Mit dieser Einrichtung wird bei Asynchronismus oder Datenverlust mit Kabine auf Stockwerk dessen Stockwerknummer durch die am Code-Leser sich horizontal vorbeibewegende Schachttüre jeweils neu eingelesen.In this device, a memory is also provided, in which the location numbers identifying the specific shaft locations are stored. A coded floor number transmitter and a corresponding code reader are installed on each landing on each landing door. In the event of asynchronism or data loss with a cabin on the floor, this facility reads in the floor number from the shaft door horizontally moving past the code reader.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der eingangs genannten Art zu schaffen, deren konstruktiver Aufwand weitgehend unabhängig von der Anzahl der Schachtinformationen und Stockwerke ist und bei der gegenüber dem Stand der Technik weniger Schachtinstallationen und weniger Leiter im Hängekabel benötigt werden.The invention has for its object to provide a device of the type mentioned, the design effort is largely independent of the number of shaft information and floors and in which fewer shaft installations and fewer conductors are required in the hanging cable compared to the prior art.

Diese Aufgabe wird durch die im Patentanspruch 1 gekennzeichnete Erfindung gelöst. Hierbei ist ein Übertragungsorgan vorgesehen, welches die Aufzugsbewegungen schlupffrei durch Formschlüssigkeit via Antriebsscheibe auf einen Impulsgeber im Maschinenraum überträgt. Ferner ist ein Speicher vorgesehen, in welchem in bekannter Art bestimmte Schachtorte kennzeichnende Ortszahlen gespeichert sind, die im Verlaufe einer Fahrt fahrtrichtungsabhängig nacheinander in ein Register übertragen werden. Der Positionsgeber weist einen Zähler auf, in welchem während der Fahrt der jeweiligen Position der Aufzugskabine entsprechende Ortszahlen gebildet werden. Das Register und der Zähler sind mit einem Komparator verbunden, der wie üblich die Ortszahlen miteinander vergleicht. Bei Gleichheit wird ein eine Schachtinformation darstellendes Signal erzeugt und ein dem betreffenden Schachtort zugeordnetes Schaltglied aktiviert.This object is achieved by the invention characterized in claim 1. In this case, a transmission element is provided, which transmits the elevator movements without slippage through a positive fit via the drive pulley to a pulse generator in the machine room. Furthermore, a memory is provided in which, in a known manner, certain chimney locations are stored, which are successively transferred to a register in the course of a journey depending on the direction of travel. The position transmitter has a counter, in which corresponding location numbers are formed during the journey of the respective position of the elevator car. The register and the counter are connected to a comparator which, as usual, compares the local numbers. If they are identical, a signal representing shaft information is generated and a switching element assigned to the relevant shaft location is activated.

Die mit der Erfindung erzielten Vorteile sind darin zu sehen, dass keine an der Aufzugskabine befestigten Positionsgeber erforderlich sind, wodurch die für die Signalübertragung benötigten Leiter im Hängekabei und in der übrigen elektrischen Installation entfallen. Die Installationen der mit den Positionsgebern zusammenwirkenden Betätigungsorgane im Aufzugsschacht entfallen ebenfalls, so dass erhebliche Kosten gespart werden können.The advantages achieved with the invention are to be seen in the fact that no position transmitters attached to the elevator car are required, as a result of which the conductors required for signal transmission in the hanging frame and in the other electrical installation are omitted. The installations of the actuating elements interacting with the position sensors in the elevator shaft are also dispensed with, so that considerable costs can be saved.

Im folgenden wird die Erfindung anhand eines auf der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Es zeigt:

  • Fig. 1 eine schematische Darstellung der erfindungsgemässen Einrichtung.
The invention is explained in more detail below with reference to an exemplary embodiment shown in the drawing. It shows:
  • Fig. 1 is a schematic representation of the device according to the invention.

In der Fig. 1 ist mit 1 ein Aufzugsschacht bezeichnet, in dem eine von einer Fördermaschine 2 über ein Förderseil 3 angetriebene Aufzugskabine 4 geführt ist. Ein Impulsgeber 5 in Form eines Digitaltachometers ist mit einer Antriebsscheibe 6 gekuppelt, welche mittels eines an der Aufzugskabine 4 befestigten, über eine am unteren Schachtende angeordnete Umlenkrolle 7 geführten Bandes 8 antreibbar ist. Die Übertragung des Drehmomentes auf die Antriebsscheibe 6 erfolgt mittels Formschluss, der beispielsweise durch im Band 8 vorgesehene Löcher, in welche an der Antriebsscheibe 6 angeordnete Zähne eingreifen, hergestellt werden kann. Der Impulsgeber 5 und ein Zähler 9 bilden einen Positionsgeber, wobei der Impulsgeber 5 beispielsweise pro 1 mm Fahrweg der Aufzugskabine 4 einen Impuls erzeugt und die Impulse im Zähler 9 zu Ortszahlen summiert werden, welche der jeweiligen Kabinenposition entsprechen und sich auf eine bestimmte Basis, beispielsweise den Kabinenfussboden, wenn die Aufzugskabine 4 in der untersten Haltestelle ist, beziehen.In FIG. 1, 1 denotes an elevator shaft in which an elevator car 4 driven by a conveyor machine 2 via a conveyor cable 3 is guided. A pulse generator 5 in the form of a digital tachometer is coupled to a drive pulley 6 which can be driven by means of a belt 8 fastened to the elevator car 4 and guided over a deflection roller 7 arranged at the lower end of the shaft. The torque is transmitted to the drive pulley 6 by means of a positive fit, which can be produced, for example, through holes provided in the band 8, into which teeth arranged on the drive pulley 6 engage. The pulse generator 5 and a counter 9 form a position transmitter, the pulse generator 5 generating a pulse, for example, per 1 mm of travel of the elevator car 4, and the pulses in the counter 9 are summed up to local numbers which correspond to the respective car position and are based on a specific basis, for example cover the floor of the car when the elevator car 4 is in the lowest stop.

Mit KUET, KSE1, KSE2 und KSE3 sind Kontakte eines Sicherheitskreises bezeichnet, welche mittels Schaltgliedern 10, 11, 12, 13, beispielsweise in Form von Relais, bei der Vorbeifahrt der Aufzugskabine 4 an bestimmten Schachtorten betätigbar sind. Hierbei sind beispielsweise der eine Kontakt KUET ein während der Fahrt im Türbereich zu schaltender Türüberbrückungskontakt und die anderen Kontakte KSE1, KSE2 und KSE3 Schachtendekontakte, mittels welchen die Verzögerung der Aufzugskabine 4 bei Einfahrt in eine Endhaltestelle kontrolliert werden kann.KUET, KSE1, KSE2 and KSE3 denote contacts of a safety circuit which can be actuated by means of switching elements 10, 11, 12, 13, for example in the form of relays, when the elevator car 4 drives past certain shaft locations. Here, for example, the one contact is KUET a door bridging contact to be switched in the door area during travel and the other contacts KSE1, KSE2 and KSE3 shaft end contacts, by means of which the delay of the elevator car 4 when entering a final stop can be controlled.

Die bestimmten Schachtorte sind durch Ortszahlen gekennzeichnet, welche in einem Speicher 14 gespeichert sind, der mit einem Register 15 in Verbindung steht. Das Register 15 und der Zähler 9 der Positionsgebers sind mit einem Komparator 16 verbunden, wobei das Register 15 und der Zähler 9 Register eines Mikroprozessors 17 sind, dessen Rechenwerk den Komparator 16 bildet. Der Speicher 14 in Form eines Schreib-Lesespeichers, der Mikroprozessor 17 und ein Festwertspeicher 18 sind über einen Bus 19 miteinander verbunden und bilden zusammen mit einem Taktgenerator 20 einen Mikrocomputer 21. Ein Adressendekodierer 22 ist mit seinen Eingängen am Bus 19 und mit einem Ausgang an einem Bustreiber 23 angeschlossen. Der Bustreiber 23 ist eingangsseitig mit dem Impulsgeber 5 und ausgangsseitig mit einem Datenleiter des Busses 19 verbunden. Weitere Ausgänge des Adressendekodierers 22 stehen mit weiteren Bustreibern 24, 25, 26 und 27 in Verbindung, die ausgangsseitig an den Realis 10, 11, 12 und 13 angeschlossen sind. Der Mikrocomputer 21 und der Impulsgeber 5 sind mit einer an einem Drehstromnetz RSTO angeschlossenen gepufferten Speisung 28 verbunden, so dass bei Netzspannungsausfall der Betrieb der Einrichtung gewährleistet ist bzw. kein Datenverlust entsteht.The particular chute locations are identified by location numbers which are stored in a memory 14 which is connected to a register 15. The register 15 and the counter 9 of the position transmitter are connected to a comparator 16, the register 15 and the counter 9 being the registers of a microprocessor 17, the arithmetic unit of which forms the comparator 16. The memory 14 in the form of a read-write memory, the microprocessor 17 and a read-only memory 18 are connected to one another via a bus 19 and, together with a clock generator 20, form a microcomputer 21. An address decoder 22 is connected to the inputs on the bus 19 and with an output a bus driver 23 connected. The bus driver 23 is connected on the input side to the pulse generator 5 and on the output side to a data conductor of the bus 19. Further outputs of the address decoder 22 are connected to further bus drivers 24, 25, 26 and 27, which are connected on the output side to the Realis 10, 11, 12 and 13. The microcomputer 21 and the pulse generator 5 are connected to a buffered supply 28 connected to a three-phase network RSTO, so that the operation of the device is ensured in the event of a mains voltage failure and no data loss occurs.

Die vorstehend beschriebene Einrichtung arbeitet wie folgt:The device described above works as follows:

Nach dem Start der Aufzugskabine 4 wird der Impulsgeber 5 via Antriebscheibe 6 durch das Band 8 in synchrone Bewegung versetzt und wird der Bustreiber 23 mit Hilfe des Adressendekodierers 22 aktiviert, so dass die vom Impulsgeber 5 erzeugten Impulse übertragen und im Zähler 9 zu Ortszahlen summiert werden können. Sodann wird die Ortszahl des dem Startort der Aufzugskabine 4 in Fahrtrichtung am nächsten liegenden bestimmten Schachtortes aus dem Speicher 14 in das Register 15 übertragen. Im Verlaufe der Fahrt werden nun im Komparator 16 die Ortszahlen des Zählers 9 und des Registers 15 ständig miteinander verglichen. Bei Gleichheit wird die Adresse der Ortszahl des betreffenden Schachtortes im Adressendekodierer 22 dekodiert und der zugeordnete Bustreiber aktiviert, worauf das nachgeschaltete Relais erregt und dessen Kontakt betätigt wird. Danach wird die Ortszahl des folgenden, in Fahrtrichtung am nächsten liegenden bestimmten Schachtortes in das Register 15 übertragen und in vorstehend beschriebener Weise fortgefahren.After the start of the elevator car 4, the pulse generator 5 is set in synchronous motion by the belt 8 via the drive pulley 6 and the bus driver 23 is activated with the aid of the address decoder 22, so that the pulses generated by the pulse generator 5 are transmitted and summed up to local numbers in the counter 9 can. The location number of the particular shaft location closest to the starting location of the elevator car 4 in the direction of travel is then transferred from the memory 14 into the register 15. In the course of the journey, the location numbers of the counter 9 and the register 15 are now continuously compared with one another in the comparator 16. In the case of equality, the address of the location number of the relevant shaft location is decoded in the address decoder 22 and the assigned bus driver is activated, whereupon the downstream relay is excited and its contact is actuated. Thereafter, the location number of the next determined shaft location closest in the direction of travel is transferred to the register 15 and continued in the manner described above.

Claims (3)

1. Equipment for the production of shaft data in a lift, the lift cage (4) of which is connected with a position transmitter, which displays a pulse generator (5), which is driven by a belt (8) fastened at the lift cage and delivers pulse sequences, which are determined by the cage movement and by means of which - in conjunction with an evaluation circuit - positions of the lift cage (4) are ascertainable, which coincide at least with certain shaft locations, characterised thereby, that the belt (8) loops free of slip and with shape-locking around a drive pulley (6) coupled with the pulse generator (5) and the pulse generator delivers permanent constrainedly synchronised pulse sequences proportional to the cage movement.
2. Equipment according to patent claim 1, characterised thereby, that the belt (8) transmitting the cage movement to the drive pulley (6) displays holes or slots of uniform pitch spacing for the purpose of shape-locking with the drive pulley (6) and the drive pulley (6) on its circumferential surface displays protrusions engaging into the holes or slots of the belt (8).
3. Equipment according to claim 1, characterised thereby, that the evaluating circuit constructed as microcomputer (21) and the pulse generator (5) are connected to a buffered supply (28).
EP86101380A 1985-04-03 1986-02-03 Device for generating lift-well information Expired EP0197252B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86101380T ATE36143T1 (en) 1985-04-03 1986-02-03 DEVICE FOR GENERATION OF SHAFT INFORMATION IN AN ELEVATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1436/85 1985-04-03
CH143685 1985-04-03

Publications (2)

Publication Number Publication Date
EP0197252A1 EP0197252A1 (en) 1986-10-15
EP0197252B1 true EP0197252B1 (en) 1988-08-03

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US (1) US4735295A (en)
EP (1) EP0197252B1 (en)
JP (1) JPS61229783A (en)
CN (1) CN1004413B (en)
AT (1) ATE36143T1 (en)
CA (1) CA1253982A (en)
DE (1) DE3660446D1 (en)
ES (1) ES8706564A1 (en)
FI (1) FI87554C (en)
WO (1) WO1990005693A1 (en)

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Publication number Publication date
FI861260A0 (en) 1986-03-25
JPS61229783A (en) 1986-10-14
EP0197252A1 (en) 1986-10-15
DE3660446D1 (en) 1988-09-08
ES8706564A1 (en) 1987-07-01
CN86101781A (en) 1986-10-08
FI87554C (en) 1993-01-25
CA1253982A (en) 1989-05-09
CN1004413B (en) 1989-06-07
WO1990005693A1 (en) 1990-05-31
FI87554B (en) 1992-10-15
FI861260A (en) 1986-10-04
US4735295A (en) 1988-04-05
ES552379A0 (en) 1987-07-01
ATE36143T1 (en) 1988-08-15

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