EP0047847B1 - Protective circuit-breaking switch - Google Patents

Protective circuit-breaking switch Download PDF

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Publication number
EP0047847B1
EP0047847B1 EP81105929A EP81105929A EP0047847B1 EP 0047847 B1 EP0047847 B1 EP 0047847B1 EP 81105929 A EP81105929 A EP 81105929A EP 81105929 A EP81105929 A EP 81105929A EP 0047847 B1 EP0047847 B1 EP 0047847B1
Authority
EP
European Patent Office
Prior art keywords
latch
spring
lever
rotation
circuit breaker
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
Application number
EP81105929A
Other languages
German (de)
French (fr)
Other versions
EP0047847A1 (en
Inventor
Martin Staffen
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT81105929T priority Critical patent/ATE10045T1/en
Publication of EP0047847A1 publication Critical patent/EP0047847A1/en
Application granted granted Critical
Publication of EP0047847B1 publication Critical patent/EP0047847B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1072—Release mechanisms which are reset by opening movement of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/527—Manual reset mechanisms which may be also used for manual release actuated by lever making use of a walking beam with one extremity latchable, the other extremity actuating or supporting the movable contact and an intermediate part co-operating with the actuator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H2071/0292—Housing or frames containing grooves or slots for guiding movable parts

Definitions

  • the invention relates to a circuit breaker, the switch lock consists essentially of a rotatably mounted pawl, which rotatably engages over a contact lever and stands on a release element, and a manual control element which is connected outside of its pivot point by a spring to the pawl next to its pivot point stands.
  • a known miniature circuit breaker US-A-2190517
  • USB-A-2190517 a known miniature circuit breaker
  • the invention is based on the finding that the known circuit breaker can still be fundamentally improved and can be upgraded for today's requirements.
  • the invention has for its object to develop a miniature circuit breaker that manages with only one spring using a continuously operating switch lock, ie without snap action.
  • the pivot point of the pawl is formed by a ratchet lever, which is guided in a link and is connected eccentrically to the pivot point of the manual control element, and that the spring acts on the contact lever.
  • the spring acts as a tension spring on the contact lever between its axis of rotation and the fulcrum of the ratchet lever and that the fixed contact piece associated with the contact piece of the contact lever is arranged on the side facing the pawl which faces away from the manual control element.
  • a circuit breaker has a particularly simple structure.
  • the pawl 1 has a rotatably mounted pawl 1, a contact lever 2 and a manual control element 3 in its switch lock.
  • the pawl stands on a trigger element 4.
  • this is a rail magnet, that is to say a combined thermal and magnetic release, as is known per se (US-A-3081368, FR-A-1309280).
  • the fulcrum 5 of the pawl 1 is formed by a pawl lever 6 which is guided in a link 7 in such a way that there is an approximately constant distance from the latching point 8.
  • the pawl lever 6 is connected eccentrically to the fulcrum 9 of the manual control member 3.
  • a spring 10 in the exemplary embodiment a tension spring, engages on the contact lever 2, which is partially overlapped by the pawl 1 in a U-shape and is rotatably held on an axis of rotation 11.
  • a contact piece 12 is arranged on the contact lever 2 and a contact piece 13 is arranged on the fixed contact. Extinguishing plates can be arranged between the contact pieces in a known manner, but are also unnecessary for simple switching tasks.
  • the current path via the trigger element 4, which can also be a conventional electromagnetic and thermal trigger, can run via a stranded wire of a known type, which is not shown, to the contact lever 2 and from there to the contact piece 13 and a connecting terminal.
  • Another connection terminal can be arranged on the other side of the circuit breaker at the trigger element 4.
  • the circuit breaker can be snapped onto mounting rails in the usual manner with the snap device 14.
  • the spring 10 acts as a tension spring on the contact lever 2 between its axis of rotation 11 and the fulcrum 5 of the latch lever 6, it is advantageous if the fixed contact piece 13 assigned to the contact piece 12 of the contact lever 2 is arranged on the side of the latch 1, which faces away from the manual control element 3.
  • the pawl lever 6 is rotatably connected to the manual control element 3 at the point 15.
  • the switching state according to FIG. 1 changes to that according to FIG. 2.
  • the manual control element 3 forms a guide lip 16 for the spring 10. It is formed on the manual control element 3 in such a way that in the position of free release when the manual control element 3 is held by hand and the circuit breaker responds and the release element 4 releases the pawl 1 , then the imaginary center line of the spring 10 is raised approximately to the connecting line between the ratchet lever 6 and the ratchet 1 on the one hand and the pivot point 9 of the manual control element 1 on the other hand.
  • the switching position of the free trip is illustrated in Fig. 3. In this switching position, the spring 10 can contract somewhat and an unstable state is formed with regard to the torque caused by the tensile force of the spring 10, so that the internal spring forces which want to bring about a straight position release the manual control element 1 into position transfer to Fig. 1.
  • the manual control element 3 is configured in the form of a roller, as shown in the figures.
  • the hand control 1 To reset the free release according to FIG. 3 into the switch-on position, the hand control 1 only needs to be transferred from the switch-off position into the switch-on position after being released. 3 moves clockwise to the right, the pawl lever 6 lifts the pawl 1 under the tensile force of the spring 10 to the latching point 8. During this process, the position of the ratchet lever 6 and the imaginary axis of the spring 10 increasingly diverge until they have reached the position shown in FIG. 1. As a result, the torque exerted by the spring 10 becomes increasingly greater, so that an increasing releasing force is achieved.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanical Control Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)

Description

Die Erfindung bezieht sich auf einen Leitungsschutzschalter, dessen Schaltschloss im wesentlichen aus einer drehbar gelagerten Klinke besteht, die einen Kontakthebel drehbeweglich übergreift und auf einem Auslöseorgan aufsteht, und aus einem Handbedienungsorgan, das ausserhalb seines Drehpunktes durch eine Feder mit der Klinke neben deren Drehpunkt in Verbindung steht. Ein solcher bekannter Leitungsschutzschalter (US-A-2190517) kommt also besonders beim Aufbau eines Schaltschlosses mit wenigen Bauteilen aus. Dennoch benötigt er eine Druckfeder zum manuellen Betätigen des Kontakthebels und des Handbedienungsorgans sowie eine weitere Feder, die beim Entklinken den Kontakthebel öffnet.The invention relates to a circuit breaker, the switch lock consists essentially of a rotatably mounted pawl, which rotatably engages over a contact lever and stands on a release element, and a manual control element which is connected outside of its pivot point by a spring to the pawl next to its pivot point stands. Such a known miniature circuit breaker (US-A-2190517) therefore needs only a few components when building a switch lock. Nevertheless, he needs a compression spring for manual actuation of the contact lever and the manual control element, as well as another spring that opens the contact lever when it is released.

Zum Wiedereinschalten des bekannten Leitungsschutzschalters muss dieser zunächst nach einer Freiauslösung von Hand in die Ausschaltstellung und dann in die Einschaltstellung zurückgeschaltet werden. Die theoretisch erforderlichen Federn, eine für Schaltbewegung, eine für Kontaktdruck und eine für Griffrückstellung und Rückverklinkung werden also nur um eine vermindert.To switch the known circuit breaker back on, it must first be switched back to the switch-off position and then back to the switch-on position after it has been released manually. The theoretically required springs, one for switching movement, one for contact pressure and one for returning the handle and latching back, are therefore reduced by only one.

Der Erfindung liegt die Erkenntnis zugrunde, dass der bekannte Leitungsschutzschalter noch grundsätzlich verbessert werden kann und für heutige Anforderungen sich ertüchtigen lässt.The invention is based on the finding that the known circuit breaker can still be fundamentally improved and can be upgraded for today's requirements.

Der Erfindung liegt die Aufgabe zugrunde, einen Leitungsschutzschalter zu entwickeln, der unter Verwendung eines kontinuierlich arbeitenden Schaltschlosses, also ohne Sprungschaltwerk, mit lediglich einer Feder auskommt.The invention has for its object to develop a miniature circuit breaker that manages with only one spring using a continuously operating switch lock, ie without snap action.

Die Lösung der geschilderten Aufgabe besteht nach der Erfindung darin, dass der Drehpunkt der Klinke durch einen Klinkenhebel gebildet ist, der in einer Kulisse geführt und exzentrisch zum Drehpunkt des Handbedienungsorgans mit diesem verbunden ist, und dass die Feder am Kontakthebel angreift.The solution of the described task is according to the invention that the pivot point of the pawl is formed by a ratchet lever, which is guided in a link and is connected eccentrically to the pivot point of the manual control element, and that the spring acts on the contact lever.

Die Feder zwischen Handbetätigungsorgan und Klinke ist also nicht unmittelbar mit der Klinke, sondern indirekt über den Kontakthebel verbunden. Ein solcher Leitungsschutzschalter mit kontinuierlich arbeitendem Schaltschloss weist den Vorteil auf, dass Prellerscheinungen auf den Kontakten weitgehend vermieden werden. Er kommt mit einer Feder aus, die die Schaltbewegung und den Kontaktdruck, die Griffrückstellung und die Rückverklinkung ermöglicht.The spring between the manual actuator and the pawl is therefore not connected directly to the pawl, but indirectly via the contact lever. Such a circuit breaker with a continuously operating switch lock has the advantage that bouncing phenomena on the contacts are largely avoided. It comes with a spring that enables the switching movement and the contact pressure, the handle reset and the release mechanism.

Es ist günstig, dass die Feder bei Ausbildung als Zugfeder am Kontakthebel zwischen dessen Drehachse und dem Drehpunkt des Klinkenhebels angreift und dass das dem Kontaktstück des Kontakthebels zugeordnete Festkontaktstück auf der Seite zur Klinke angeordnet ist, die vom Handbedienungsorgan abgewandt ist. Ein solcher Leitungsschutzschalter weist einen besonders einfachen Aufbau auf.It is favorable that the spring acts as a tension spring on the contact lever between its axis of rotation and the fulcrum of the ratchet lever and that the fixed contact piece associated with the contact piece of the contact lever is arranged on the side facing the pawl which faces away from the manual control element. Such a circuit breaker has a particularly simple structure.

Die Griffrückstellung nach einer Freiauslösung wird in einfacher Weise erzielt, wenn das Handbedienungsorgan eine Führungslippe für die Feder bildet, die in der Stellung der Freiauslösung deren gedachte Mittellinie etwa bis zur Verbindungslinie von Klinkenhebel und Klinke einerseits und Drehpunkt des Handbedienungsorgans andererseits anhebt.The reset of the handle after a free release is achieved in a simple manner if the manual control element forms a guide lip for the spring, which in the position of the free release raises its imaginary center line approximately up to the connecting line between the ratchet lever and pawl on the one hand and the fulcrum of the manual control element on the other.

Einen besonders einfachen Aufbau erzielt man, wenn das Handbedienungsorgan walzenförmig ausgebildet ist und die Klinke auf einem an sich bekannten Schienenmagneten aufliegt. Dadurch wird der Aufbau noch weiter vereinfacht.A particularly simple construction is achieved if the manual control element is roller-shaped and the pawl rests on a rail magnet known per se. This further simplifies the structure.

Die Erfindung soll anhand eines in der Zeichnung grob schematisch wiedergegebenen Ausführungsbeispiels näher erläutert werden:

  • In Fig. 1 ist der Leitungsschutzschalter in der Ausschaltstellung teilweise aufgebrochen wiedergegeben.
  • In Fig. 2 ist der Leitungsschutzschalter in der Darstellungsweise nach Fig. 1 in seiner Einschaltstellung wiedergegeben.
  • In Fig. 3 ist der Leitungsschutzschalter bei Freiauslösung, wenn das Handbedienungsorgan also während des Ansprechens des Leitungsschutzschalters festgehalten wird, dargestellt. Wenn man das Handbedienungsorgan loslässt, wird es in die Lage nach Fig. 1 überführt, wodurch es die Ausschaltstellung anzeigt.
The invention will be explained in more detail with reference to an exemplary embodiment shown roughly schematically in the drawing:
  • In Fig. 1, the circuit breaker is shown partially broken open.
  • In Fig. 2 the circuit breaker in the representation of Fig. 1 is shown in its on position.
  • In Fig. 3 the circuit breaker in the case of free tripping, if the manual control element is thus held during the response of the circuit breaker. If you let go of the manual control element, it is transferred to the position shown in FIG. 1, whereby it indicates the switch-off position.

Der Leitungsschutzschalter nach Fig. 1 weist bei seinem Schaltschloss eine drehbar gelagerte Klinke 1, einen Kontakthebel 2 und ein Handbedienungsorgan 3 auf. Die Klinke steht auf einem Auslöseorgan 4 auf. Im Ausführungsbeispiel ist dies ein Schienenmagnet, also ein kombinierter thermischer und magnetischer Auslöser, wie er an sich bekannt ist (US-A-3081368, FR-A-1309280). Den Drehpunkt 5 der Klinke 1 bildet ein Klinkenhebel 6, der in einer Kulisse 7 so geführt ist, dass etwa konstanter Abstand zur Verklinkungsstelle 8 entsteht. Der Klinkenhebel 6 ist exzentrisch zum Drehpunkt 9 des Handbedienungsorgans 3 mit diesem verbunden. Eine Feder 10, im Ausführungsbeispiel eine Zugfeder, greift am Kontakthebel 2 an, der von der Klinke 1 teilweise U-förmig übergriffen wird und an einer Drehachse 11 drehbeweglich gehalten ist.1 has a rotatably mounted pawl 1, a contact lever 2 and a manual control element 3 in its switch lock. The pawl stands on a trigger element 4. In the exemplary embodiment, this is a rail magnet, that is to say a combined thermal and magnetic release, as is known per se (US-A-3081368, FR-A-1309280). The fulcrum 5 of the pawl 1 is formed by a pawl lever 6 which is guided in a link 7 in such a way that there is an approximately constant distance from the latching point 8. The pawl lever 6 is connected eccentrically to the fulcrum 9 of the manual control member 3. A spring 10, in the exemplary embodiment a tension spring, engages on the contact lever 2, which is partially overlapped by the pawl 1 in a U-shape and is rotatably held on an axis of rotation 11.

Am Kontakthebel 2 ist ein Kontaktstück 12 und am Festkontakt ein Kontaktstück 13 angeordnet. Zwischen den Kontaktstücken können in bekannter Weise Löschbleche angeordnet werden, die sich für einfache Schaltaufgaben jedoch auch erübrigen. Der Strompfad über das Auslöseorgan 4, der auch ein üblicher elektromagnetischer und thermischer Auslöser sein kann, kann über eine Litzenleitung bekannter Art, die nicht dargestellt ist, zum Kontakthebel 2 verlaufen und von dort zum Kontaktstück 13 und eine Anschlussklemme. Eine weitere Anschlussklemme kann auf der anderen Seite des Leitungsschutzschalters beim Auslöseorgan 4 angeordnet sein. Der Leitungsschutzschalter kann mit der Schnappvorrichtung 14 in üblicher Weise auf Tragschienen aufgeschnappt werden.A contact piece 12 is arranged on the contact lever 2 and a contact piece 13 is arranged on the fixed contact. Extinguishing plates can be arranged between the contact pieces in a known manner, but are also unnecessary for simple switching tasks. The current path via the trigger element 4, which can also be a conventional electromagnetic and thermal trigger, can run via a stranded wire of a known type, which is not shown, to the contact lever 2 and from there to the contact piece 13 and a connecting terminal. Another connection terminal can be arranged on the other side of the circuit breaker at the trigger element 4. The circuit breaker can be snapped onto mounting rails in the usual manner with the snap device 14.

Wenn die Feder 10 bei Ausbildung als Zugfeder am Kontakthebel 2 zwischen dessen Drehachse 11 und dem Drehpunkt 5 des Klinkenhebels 6 angreift, ist günstig, wenn das dem Kontaktstück 12 des Kontakthebels 2 zugeordnete Festkontaktstück 13 auf der Seite der Klinke 1 angeordnet ist, die vom Handbedienungsorgan 3 abgewandt ist. Ein solcher Aufbau ist in Fig. 1 dargestellt. Im Ausführungsbeispiel ist der Klinkenhebel 6 mit dem Handbedienungsorgan 3 an der Stelle 15 drehbeweglich verbunden.If the spring 10 acts as a tension spring on the contact lever 2 between its axis of rotation 11 and the fulcrum 5 of the latch lever 6, it is advantageous if the fixed contact piece 13 assigned to the contact piece 12 of the contact lever 2 is arranged on the side of the latch 1, which faces away from the manual control element 3. Such a structure is shown in Fig. 1. In the exemplary embodiment, the pawl lever 6 is rotatably connected to the manual control element 3 at the point 15.

Wenn der Leitungsschutzschalter in seine Einschaltstellung überführt wird, geht der Schaltzustand nach Fig. 1 in den nach Fig. 2 über. Nach einer Weiterbildung bildet das Handbedienungsorgan 3 für die Feder 10 eine Führungslippe 16. Sie ist am Handbedienungsorgan 3 so ausgebildet, dass in der Stellung der Freiauslösung, wenn das Handbedienungsorgan 3 von Hand festgehalten wird und der Leitungsschutzschalter anspricht und das Auslöseorgan 4 die Klinke 1 freigibt, dann die gedachte Mittellinie der Feder 10 etwa bis zur Verbindungslinie von Klinkenhebel 6 und Klinke 1 einerseits und Drehpunkt 9 des Handbedienungsorgans 1 andererseits angehoben wird. Die Schaltstellung der Freiauslösung ist in Fig. 3 veranschaulicht. In dieser Schaltstellung kann sich die Feder 10 ziemlich zusammenziehen und es bildet sich hinsichtlich des von der Zugkraft der Feder 10 bewirkten Drehmoments ein labiler Zustand aus, so dass die inneren Federkräfte, die eine gerade Stellung bewirken möchten, nach Loslassen das Handbedienungsorgan 1 in die Stellung nach Fig. 1 überführen.When the circuit breaker is moved to its on position, the switching state according to FIG. 1 changes to that according to FIG. 2. According to a further development, the manual control element 3 forms a guide lip 16 for the spring 10. It is formed on the manual control element 3 in such a way that in the position of free release when the manual control element 3 is held by hand and the circuit breaker responds and the release element 4 releases the pawl 1 , then the imaginary center line of the spring 10 is raised approximately to the connecting line between the ratchet lever 6 and the ratchet 1 on the one hand and the pivot point 9 of the manual control element 1 on the other hand. The switching position of the free trip is illustrated in Fig. 3. In this switching position, the spring 10 can contract somewhat and an unstable state is formed with regard to the torque caused by the tensile force of the spring 10, so that the internal spring forces which want to bring about a straight position release the manual control element 1 into position transfer to Fig. 1.

Im Ausführungsbeispiel ist das Handbedienungsorgan 3 walzenförmig ausgebildet, wie es in den Figuren dargestellt ist. Zum Rückstellen von der Freiauslösung nach Fig. 3 in die Einschaltstellung braucht das Handbedienungsorgan 1, nachdem man es losgelassen hat, nur von der Ausschaltstellung in die Einschaltstellung überführt zu werden. Wenn das Handbedienungsorgan 1 nach der Freiauslösung gemäss Fig. 3 sich im Uhrzeigersinn nach rechts bewegt, hebt der Klinkenhebel 6 die Klinke 1 unter der Zugkraft der Feder 10 bis zur Verklinkungsstelle 8 an. Während dieses Vorgangs laufen die Stellung des Klinkenhebels 6 und die gedachte Achse der Feder 10 zunehmend auseinander, bis sie die Lage nach Fig. 1 erreicht haben. Dadurch wird das von der Feder 10 ausgeübte Drehmoment zunehmend grösser, so dass eine wachsende Rückverklinkungskraft erzielt wird.In the exemplary embodiment, the manual control element 3 is configured in the form of a roller, as shown in the figures. To reset the free release according to FIG. 3 into the switch-on position, the hand control 1 only needs to be transferred from the switch-off position into the switch-on position after being released. 3 moves clockwise to the right, the pawl lever 6 lifts the pawl 1 under the tensile force of the spring 10 to the latching point 8. During this process, the position of the ratchet lever 6 and the imaginary axis of the spring 10 increasingly diverge until they have reached the position shown in FIG. 1. As a result, the torque exerted by the spring 10 becomes increasingly greater, so that an increasing releasing force is achieved.

Claims (5)

1. Circuit breaker whose switching cam consists basically of a rotatably mounted latch (1), which overlaps a contact lever (2) in rotary fashion and stands on a release element (4), and of a manual operation element (3) which is connected outside its centre of rotation to the latch (1) near the centre of rotation to the latch (1) by a spring (10), characterised in that the centre of rotation of the latch (1) is formed by a latch lever (6), which is guided in a guide arm (7), is connected to this element eccentrically with respect to the centre of rotation (9) of the manual operation element (3), and in that the spring (10) engages on the contact lever (2).
2. A circuit breaker according to claim 1, characterised in that the spring (10), when constructed as a tension spring, engages on the contact lever (2) between its axis of rotation (11) and the centre of rotation (5) of the latch lever (6) and that the fixed contact piece (13) associated with the contact piece (12) of the contact lever (2) is disposed on the side facing the latch (1) which is turned away from the manual operation element (3).
3. A circuit breaker according to claim 1 or 2, characterised in that the manual operation element (3) forms a guide lip (16) for the spring (10) which, in the position of trip-free-release, raises its imaginary centre line approximately up to the connecting line of the latch lever (6) and the latch (1) on the one hand and the centre of rotation (9) of the manual operation element (3) on the other hand.
4. A circuit breaker according to one of the claims 1 to 3, characterised in that the manual operation element (3) is constructed to be cylindrical.
5. A circuit breaker according to one of the claims 1 to 4, characterised in that the latch (1) lies on a rail magnet known per se.
EP81105929A 1980-09-15 1981-07-27 Protective circuit-breaking switch Expired EP0047847B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105929T ATE10045T1 (en) 1980-09-15 1981-07-27 CIRCUIT BREAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034790 1980-09-15
DE19803034790 DE3034790A1 (en) 1980-09-15 1980-09-15 CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP0047847A1 EP0047847A1 (en) 1982-03-24
EP0047847B1 true EP0047847B1 (en) 1984-10-24

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EP81105929A Expired EP0047847B1 (en) 1980-09-15 1981-07-27 Protective circuit-breaking switch

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US (1) US4376270A (en)
EP (1) EP0047847B1 (en)
JP (1) JPS5782927A (en)
AR (1) AR227198A1 (en)
AT (1) ATE10045T1 (en)
AU (1) AU7520981A (en)
BR (1) BR8105858A (en)
DD (1) DD201742A5 (en)
DE (3) DE3034790A1 (en)
DK (1) DK407381A (en)
ES (1) ES505448A0 (en)
FI (1) FI812837L (en)
GB (1) GB2084403B (en)
GR (1) GR74666B (en)
HU (1) HU182752B (en)
IL (1) IL63821A (en)
MX (1) MX150576A (en)
MY (1) MY8500826A (en)
PT (1) PT73668B (en)
RO (1) RO80534B (en)
ZA (1) ZA816354B (en)

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AU7520981A (en) 1982-03-25
JPS5782927A (en) 1982-05-24
RO80534B (en) 1984-03-30
ES8206907A1 (en) 1982-08-16
HU182752B (en) 1984-03-28
DE8024641U1 (en) 1980-12-11
ZA816354B (en) 1982-09-29
ES505448A0 (en) 1982-08-16
JPS6340008B2 (en) 1988-08-09
PT73668A (en) 1981-10-01
BR8105858A (en) 1982-06-08
DD201742A5 (en) 1983-08-03
MY8500826A (en) 1985-12-31
US4376270A (en) 1983-03-08
GB2084403A (en) 1982-04-07
PT73668B (en) 1982-11-17
AR227198A1 (en) 1982-09-30
GR74666B (en) 1984-06-29
DE3034790A1 (en) 1982-03-25
IL63821A (en) 1985-09-29
ATE10045T1 (en) 1984-11-15
RO80534A (en) 1984-03-15
IL63821A0 (en) 1981-12-31
EP0047847A1 (en) 1982-03-24
FI812837L (en) 1982-03-16
MX150576A (en) 1984-05-30
GB2084403B (en) 1984-08-22
DK407381A (en) 1982-03-16
DE3166838D1 (en) 1984-11-29

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