EP0120836B1 - Commutateur electrique de securite d'appareil - Google Patents

Commutateur electrique de securite d'appareil Download PDF

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Publication number
EP0120836B1
EP0120836B1 EP82903043A EP82903043A EP0120836B1 EP 0120836 B1 EP0120836 B1 EP 0120836B1 EP 82903043 A EP82903043 A EP 82903043A EP 82903043 A EP82903043 A EP 82903043A EP 0120836 B1 EP0120836 B1 EP 0120836B1
Authority
EP
European Patent Office
Prior art keywords
switching
contact
safety switch
switch according
switch
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
EP82903043A
Other languages
German (de)
English (en)
Other versions
EP0120836A1 (fr
Inventor
Herbert Franz
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Priority to AT82903043T priority Critical patent/ATE23236T1/de
Publication of EP0120836A1 publication Critical patent/EP0120836A1/fr
Application granted granted Critical
Publication of EP0120836B1 publication Critical patent/EP0120836B1/fr
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • H01H71/0207Mounting or assembling the different parts of the circuit breaker
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/46Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/52Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the invention relates to a single or multi-pole device circuit breaker in small format and narrow construction. Such controls are used in a variety of electrical devices and equipment such.
  • this device circuit breaker is comparable to the well-known miniature circuit breaker, which is actuated by a mechanical spring mechanism. supply of a switch contact arrangement that can be switched on and off manually and that can be triggered electromagnetically and electrothermally in front of an arc extinguishing device.
  • the actuator of a spring mechanism and the bimetallic element as an electrothermal release member are pivotally mounted on a common axis of rotation in the lower part of the device to positively actuate the switching contact piece arranged on the same axis.
  • this arrangement is relatively unstable in electrical and mechanical terms and is spatially utilized in relation to the specified switch dimensions such that how much for the inclusion of a usually required excitation winding for the electromagnetic release element which also acts on the bimetal element and for an arc-quenching plate package in the area of the contact interruption point moreover, there is no more space available for a further (auxiliary) contact arrangement.
  • US-A-3475711 relates to a smaller circuit breaker that has only one electrothermal trip device.
  • a combined tensioning and unlatching lever constantly interacts via its control cam with one leg of the switch contact piece, which is V-shaped and can be pivoted about the same axis of rotation, but the spring elements provided only carry out the triggering process, but cannot provide reliable contact by pressure.
  • the design of this switching mechanism does not make it possible to associate the device with an electromagnetic release or even an additional switching device within the existing dimensions.
  • a circuit breaker is known from FR-A-2117785, which contains an electrothermal tripping device in the upper part of its housing in addition to the switching mechanism and, in the case of a correspondingly larger design, provides a more effective arc extinguishing device in its lower part.
  • this device should normally be switched on at all times and only be able to be switched on again after an operational overload and its failure.
  • the device circuit breaker in its function is a frequently manually operated switch element, to which the above-mentioned monitoring functions have also been entered in order to be able to dispense with the separate need for protection within the switched consumer circuit.
  • efforts are made to add a further contact arrangement to the device circuit breaker, which according to its on and off position within a separate signal or control circuit is intended to serve the respective switch position and thus the operating state of the electrical device to be switched in a suitable manner, for. B. optically or acoustically, to show or to control other auxiliary devices according to the switch position or the switching state.
  • the present invention is accordingly based on the object of developing a device circuit breaker whose protective devices against short-circuit and overload can be accommodated in connection with a changeover contact arrangement for signal or control purposes by a suitable design and arrangement of all components within the specified dimension range of the normal built-in switch version.
  • the switching mechanism is composed of a total of four individual lever members mounted on the switch housing so as to be pivotable about the same axis of rotation, including three further spring elements.
  • the basic element is the clamping body made of insulating material with the functional projections protruding on the front at its three corner points, which is rotated in the direction of the switch-off position by the leg spring wound around a flange on the back and supported against the housing.
  • both the unlatching lever and the movable swivel contact piece are arranged as stamped parts, and also the driver lever, which is again made of plastic, for the signal switch.
  • the V-shaped, flat release lever works together with the upper function shoulder via its bow-shaped extended latch leg, against which it is also supported with a counter leg under pressure from the latch spring.
  • the swivel contact piece mounted on it is pressed on its switching arm by the spring, which is supported in front of the right functional approach and causes the contact pressure, into the wider guide notch of the left functional approach, which can then suddenly act on the switching arm when the switch is triggered as a result of this guide play.
  • the electrical supply is via a flexible strand, which is conductively connected to one arm of a T-shaped configuration of the swivel contact in the area of its mounting.
  • the on and off actuation of the device circuit breaker takes place with the aid of an outwardly protruding from the housing and through its cover cap toggle, which is pivotally mounted on an axle shoulder of the housing and against the restoring force of the leg spring contained by its shaft.
  • This control knob is coupled to an inward-extending extension in terms of the knee joint with the H-shaped connecting member, in the free end of which a push pin is inserted transversely.
  • the pressure pin acts on the upper functional approach of the clamping body during the activation process and adjusts the entire switching mechanism against the restoring force of the leg springs of the control knob and clamping body beyond a dead center.
  • the electromagnetic release member of the switch is designed as a hinged armature system, which is used with its magnetic yoke enclosing the magnetic core with the excitation winding in a U-shaped manner on the left narrow side of the housing in a corresponding profile and is held therein.
  • the hinged armature of this release element which is mounted on an extension of the outer magnetic yoke leg and is tensioned from there by means of a tension spring, has an extension which extends into the functional area of the adjacent switching mechanism in order to trigger a short-circuit release of the switch to the second one adjusted by the tensioned mechanism To strike the latch leg of the release lever.
  • the electrothermal release element of the switch designed as a bimetallic strip, is arranged next to the switching mechanism on the right narrow side of the housing for protection against overload.
  • the bimetallic strip above its insert holder has a corresponding profile in the housing and is set to the exact trigger value
  • the adjustment precaution which is accessible from the outside, continues down into one of the outer connecting lugs.
  • the adjustment provision welded to this connection lug is made in one piece with one of the arc guide plates for the quenching device described below.
  • the bimetallic strip with its free actuating end in the switched-on state faces the bow-shaped elongated latch leg of the release lever of the switching mechanism in order to initiate the triggering of the switch from this point after a corresponding deflection due to the load-dependent curvature of the bimetal strip.
  • the contact interruption point formed by the fixed contact piece and the movable pivoting contact piece is arranged directly in front of the quenching chamber for the resulting switching arc, which in turn extends spatially below the hinged armature system and accordingly extends into the lower part next to the signal switch of the switch housing.
  • the extinguishing chamber provided with gas outlet slots on the back there are two or more ferromagnetic quenching plates which are inserted parallel to one another in longitudinal grooves on the rear wall of the housing.
  • an arc guide plate which is advanced into the contact area is provided on each of the two long sides of these quenching plates.
  • One of the baffles with its front end forms the fixed contact of the switching path and at the same time the connection point for the end of the field winding of the hinged armature system, while the other baffle - as already mentioned - integrally with the adjustment device for the bimetal strip mechanically and electrically in direct connection with the relevant one Connection flag stands. Furthermore, it is important that the contact pairing is provided with silver overlay against silver-cadmium oxide, which ensures a high resistance to arcing, erosion and welding of the contact arrangement with a very low voltage drop, which in turn also triggers its sudden separation by the Clamping mechanism has beneficial effects.
  • the V-shaped blow loop formed by the contact arrangement itself drives the arc which arises when the switching path is opened extremely quickly from the two contacts and along both guide plates into the quenching chamber.
  • the sheet is then divided, cooled and deionized by means of the sheets, after which the air cushion in front of it, like the gases produced by it, can escape safely into the open.
  • the signal switch arranged between the arcing chamber and the connection holder for the bimetallic strip is composed of two fixed contact pieces inserted into the housing base and with their connecting lugs reaching outwards, between which on the bend another engaging in the housing Connection lug which is designed as a spring-loaded flip-flop changeover contact piece.
  • this flip-flop is provided with an actuation projection, which is gripped in a fork-like manner by the driver lever of the switching mechanism, in order to synchronize it so to speak in accordance with the activation and deactivation or triggering operation thereof, but electrically independently of the actual switching and monitoring function of the device circuit breaker alternatively, to be switched from one to the other switch position in order to suitably signal the main operating state or existing operating state or to control other processes depending on this.
  • the individual parts thereof can be used and held by hand and partly even mechanically, either individually or as preassembled combinations, functionally in the correspondingly designed and prepared insulating housing.
  • this fully assembled housing is designed in its spatial form as an insert, which can then be provided with an insulating material cap that encompasses it on both narrow sides. This cap fully covers the entire assembly space of the switch on one side and acts as a safeguard against loosening of the parts used as well as protection against accidental contact and protection against contamination.
  • the cap is provided on its two narrow sides with molded spring tongues which, in cooperation with the front panel, enable the switch to be detachably held in a corresponding cutout in the electrical device in question or elsewhere.
  • the switching mechanism composed of several lever and spring members is located approximately in the middle of the flat switch. According to the further construction of the switch, this switching mechanism is located between the electromagnetic release element arranged on the left side of the switch and the electrothermal release element arranged on the right side of the switch. Furthermore, the switching mechanism is below the outward-reaching operating handle as well as above the contact and quenching device of the switch, the contact arrangement of the signal switch and the various external connections.
  • the device circuit breaker is switched on by means of a toggle actuation of the control knob 1 and against the force of its return spring in the manner of a knee joint coupling via the connecting element 2.
  • This element 2 is guided with its transverse pressure pin 3 through the bow-shaped extension of the release lever 4 and hits with the pressure pin 3 on the above-mentioned functional approach of the clamping body 5 of the switching mechanism.
  • the unlatching lever 4 embedded in the clamping body 5 on the same axis of rotation follows the pressure pin 3 under the action of its pawl spring.
  • the arc column is then split into partial arcs when it strikes the end faces of the three ferromagnetic quenching plates within the quenching chamber 12, cooled between the plates and deionized.
  • the arcing gases and the air cushion produced in front of the arc can then escape safely and safely through the ventilation slots provided between the metal sheets in the housing wall.

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  • Breakers (AREA)

Abstract

Dans un commutateur de sécurité d'appareil de petit format avec déclenchement en cas de court-circuit et de surintensité de courant, ainsi que dans un commutateur de signal pour actionner et protéger par fusibles des appareils ménagers, des machines de bureau, des outillages de fabrication et autres appareils similaires, le mécanisme de commutation et déclenchement se compose de la combinaison sur le même axe d'un corps de fixation (5) comportant un levier d'encliquetage (4), un plot de contact basculant (6) et un levier d'entraînement (14) en relation fonctionnelle avec plusieurs éléments ressorts; ce mécanisme est en position centrale en dessous du mécanisme de commande (1-3), entre le système à armature battante (8) et la bilame (10), en dessus de la chambre d'extinction d'arc (12), du dispositif (supplémentaire) de contact à commutation (13) et des divers raccords de commutateur (15).

Claims (10)

1. Interrupteur mono- ou multipolaire de protection d'appareils, de petit format et de construction étroite, comportant un dispositif mécanique à passage brusque (1, 2, 3, 4, 5) pour l'actionnement d'un dispositif de contact de commutation (6, 7) qui est disposé devant un dispositif d'extinction d'arc (12) muni de tôles d'extinction et qui peut être fermé et ouvert à la main et déclenché librement par voie électromagnétique et électrother- mique, ainsi qu'un commutateur de signalisation (13) qui suit le processus de commutation, caractérisé en ce que le mécanisme de commutation, disposé dans l'espace au-dessous d'une manette de commande (1), ainsi qu'entre l'organe de déclenchement électromagnétique, réalisé sous forme de système à armature battante (8), et le bilame (10) de l'organe de déclenchement électro- thermique au-dessus du dispositif de contact de commutation (6, 7) devant le dispositif d'extinction d'arc (12), se compose de la combinaison d'un corps d'armement (5) comportant plusieurs appendices fonctionnels, d'un levier de désencliquetage (4) en forme de V aplati, d'une pièce de contact pivotante mobile (6) et d'un levier d'entraînement à un seul bras (14) pour le commutateur de signalisation (13), chacun de ses éléments étant monté individuellement de manière à pivoter autour d'un axe de rotation commun et entrant fonctionnellement en prise mutuelle et prenant appui, au moyen d'éléments à ressort individuels, en partie les uns sur les autres et dans l'ensemble sur le boîtier.
2. Interrupteur de protection d'appareils selon la revendication 1, caractérisé en ce que la manette de commande (1), montée sur le boîtier de manière à pouvoir pivoter contre la force d'un ressort de rappel, est accouplée avec du jeu à l'un des appendices fonctionnels du corps d'armement (5) par une articulation à genouillère avec interposition d'un organe de connexion (2) en forme d'U comportant une cheville de pression (3) insérée transversalement.
3. Interrupteur de protection d'appareils selon la revendication 1, caractérisé en ce que l'armature battante (9), sollicitée par un ressort de traction, de l'organe de déclenchement électromagnétique disposé sur l'un des petits côtés, à côté du mécanisme de commutation et au-dessous de la manette de commande (1), fait saillie, par un prolongement de sa culasse magnétique, dans la région de déclenchement de l'une des branches du levier de désencliquetage (4) en forme de V.
4. Interrupteur de protection d'appareils selon la revendication 3, caractérisé en ce que le bilame (10) de l'organe de déclenchement électrothermi- que, disposé sur l'autre petit côté, à côté du mécanisme de déclenchement, est maintenu par l'une de ses extrémités en position fixe réajustable dans le boîtier et, pour le déclenchement, est placé en face, par son extrémité libre d'actionnement, d'un prolongement recourbé en arc de l'autre branche du levier de désencliquetage (4) en forme de V.
5. Interrupteur de protection d'appareils selon la revendication 4, caractérisé en ce que le bras de commutation de la pièce de contact pivotante (6), reliée électriquement par une tresse flexible à l'extrémité libre du bilame (10), et la pièce de contact fixe (7), reliée directement à une extrémité de l'enroulement d'excitation du système à armature battante (8), forment, lorsque l'intervalle d'interruption est fermé, une boucle de soufflage en V qui agit, lors de l'ouverture de cet intervalle, sur l'arc électrique de rupture qui, à partir du point de rupture, s'écoule dans le dispositif d'extinction d'arc (12).
6. Interrupteur de protection d'appareils selon la revendication 1, caractérisé en ce que le dispositif d'extinction d'arc (12), réalisé avec plusieurs tôles d'extinction ferromagnétiques qui sont fixées parallèlement entre elles sur le boîtier, s'étendant obliquement au-dessous du système à armature battante (8) et muni vers l'arrière de fentes d'échappement des gaz, forme d'une part, par l'une de ses deux tôles conductrices latérales avançant du côté frontal, la pièce de contact fixe (7) et est d'autre part, par son autre tôle conductrice, en connexion conductrice avec la pièce de support-branchement (11) pour le bilame (10).
7. Interrupteur de protection d'appareils selon la revendication 6, caractérisé en ce que les pièces de contact du commutateur de signalisation, disposé entre le dispositif d'extinction d'arc (12) et la pièce de support-branchement (11) pour le bilame (10), font saillie à l'extérieur par leurs barrettes de connexion (15), la pièce de contact de commutation (13), réalisée sous forme d'organe oscillant sollicité par ressort, pouvant être actionnée entre deux pièces de contact fixes du commutateur de signalisation, au moyen du levier d'entraînement (14), par le mouvement de rotation du rocps d'armement (5) du mécanisme de commutation.
8. Interrupteur de protection d'appareils selon l'une quelconque des revendications 1 à 7, caractérisé en ce le passage de courant à travers l'interrupteur s'effectue, à partir de l'une des barrettes de connexion (15), à travers l'enroulement d'excitation du système à armature battante (8) vers les deux pièces de contact de commutation (6, 7) et à travers le bilame (10) vers l'autre barrette de connexion (15) et en ce que le commutateur de signalisation incline son contact central (13), en fonction de l'état de commutation instantané, mais de façon indépendante électriquement, de l'une à l'autre de ses pièces de contact fixes.
9. Interrupteur de protection d'appareils selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les différentes parties du mécanisme de manoeuvre et de commutation, le système à armature battante (8) avec sa barrette de connexion (15), le bilame (10) avec son support de branchement et d'ajustage (11, 15), ainsi que les tôles conductrices et d'extinction de l'arc et, en outre, le dispositif de contacts du commutateur de signalisation avec leurs connexions, sont monta- bles à l'intérieur d'un modèle prévu à cet effet de boîtier insérable qui peut être recouvert de son côté, du côté montage, par un couvercle de matière isolante qui s'emboîte sur lui sur deux petits côtés, couvercle qui comporte, du côté supérieur, une ouverture permettant de saisir la manette de commande (1) et qui assure le maintien des éléments mis en place, ainsi que la protection de l'interrupteur contre les contacts accidentels.
10. Interrupteur de protection d'appareils selon la revendication 9, caractérisé en ce que le couvercle de matière isolante, qui s'enclenche de façon amovible sur le côté arrière du boîtier insérable est muni, sur ses deux petis côtés, de languettes à ressort formées d'un seul tenant, pour le maintien de l'interrupteur dans une découpure correspondante de l'appareil.
EP82903043A 1982-10-11 1982-10-11 Commutateur electrique de securite d'appareil Expired EP0120836B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82903043T ATE23236T1 (de) 1982-10-11 1982-10-11 Elektrischer geraeteschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP1982/000224 WO1984001663A1 (fr) 1982-10-11 1982-10-11 Commutateur electrique de securite d'appareil
EP82109364A EP0105945A1 (fr) 1982-10-11 1982-10-11 Disjoncteur électrique

Publications (2)

Publication Number Publication Date
EP0120836A1 EP0120836A1 (fr) 1984-10-10
EP0120836B1 true EP0120836B1 (fr) 1986-10-29

Family

ID=26069301

Family Applications (2)

Application Number Title Priority Date Filing Date
EP82109364A Pending EP0105945A1 (fr) 1982-10-11 1982-10-11 Disjoncteur électrique
EP82903043A Expired EP0120836B1 (fr) 1982-10-11 1982-10-11 Commutateur electrique de securite d'appareil

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP82109364A Pending EP0105945A1 (fr) 1982-10-11 1982-10-11 Disjoncteur électrique

Country Status (5)

Country Link
US (1) US4559510A (fr)
EP (2) EP0105945A1 (fr)
JP (1) JPS59501884A (fr)
CA (1) CA1202653A (fr)
WO (1) WO1984001663A1 (fr)

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Publication number Priority date Publication date Assignee Title
FR2589627B1 (fr) * 1985-10-31 1988-08-26 Merlin Gerin Mecanisme de commande pour disjoncteur electrique a basse tension
FR2630580B1 (fr) * 1988-04-21 1990-08-03 Hager Electro Appareil modulaire de protection ou de commande electrique
EP0338930A1 (fr) * 1988-04-22 1989-10-25 Hager Electro S.A. Disjoncteurs ou disjoncteurs differentiels
FR2630582A1 (fr) * 1988-04-22 1989-10-27 Hager Electro Perfectionnement aux disjoncteurs ou disjoncteurs differentiels
FR2630581A1 (fr) * 1988-04-22 1989-10-27 Hager Electro Perfectionnement aux disjoncteurs ou disjoncteurs differentiels
US5130684A (en) * 1990-03-27 1992-07-14 Square D Company Circuit breaker with self-aligning thermal trip
US6094126A (en) * 1999-06-08 2000-07-25 Sorenson; Richard W. Thermal circuit breaker switch
AT505094A1 (de) * 2003-10-13 2008-10-15 Moeller Gebaeudeautomation Kg Installationsschaltgerät
CZ299994B6 (cs) * 2003-10-24 2009-01-14 Jovean & Rogy Electrical Holding Co., Ltd Spouštový mechanismus jistice
US7755465B2 (en) * 2008-04-23 2010-07-13 Sun-Lite Sockets Industry Inc. Temperature control switch
DE102011015449B4 (de) * 2011-01-25 2014-09-25 Ellenberger & Poensgen Gmbh Schalteinheit zum Schalten von hohen Gleichspannungen
CN102610456B (zh) * 2012-03-13 2015-11-25 华为技术有限公司 热磁式断路器及配电设备
KR101658863B1 (ko) * 2013-10-07 2016-09-22 주식회사 엘지화학 오작동 방지 알고리즘을 포함하는 배터리 관리 장치 및 방법
US10847333B2 (en) * 2018-09-17 2020-11-24 Siemends Industry, Inc. Circuit breakers including dual triggering devices and methods of operating same
CN113284773B (zh) * 2021-05-26 2022-12-20 上海电器科学研究所(集团)有限公司 一种内置限流熔断器的开关

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US2806103A (en) * 1954-01-21 1957-09-10 Westinghouse Electric Corp Circuit breaker
US3256407A (en) * 1963-10-28 1966-06-14 Gen Electric Circuit breaker and accessory device combination
US3475711A (en) * 1967-05-17 1969-10-28 Gen Electric Electric circuit breaker operating mechanism and assembly thereof
FR2117785B1 (fr) * 1970-12-17 1975-07-04 Maier & Cie Charles
CH618288A5 (fr) * 1977-08-05 1980-07-15 Weber Ag Fab Elektro
DE3038511A1 (de) * 1980-10-11 1982-06-03 Ellenberger & Poensgen Gmbh, 8503 Altdorf Ueberstromschutzschalter

Also Published As

Publication number Publication date
US4559510A (en) 1985-12-17
EP0120836A1 (fr) 1984-10-10
JPS59501884A (ja) 1984-11-08
JPH0336264B2 (fr) 1991-05-30
EP0105945A1 (fr) 1984-04-25
WO1984001663A1 (fr) 1984-04-26
CA1202653A (fr) 1986-04-01

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