EP0013255A1 - Door lock, particularly for vehicle doors - Google Patents

Door lock, particularly for vehicle doors Download PDF

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Publication number
EP0013255A1
EP0013255A1 EP79710018A EP79710018A EP0013255A1 EP 0013255 A1 EP0013255 A1 EP 0013255A1 EP 79710018 A EP79710018 A EP 79710018A EP 79710018 A EP79710018 A EP 79710018A EP 0013255 A1 EP0013255 A1 EP 0013255A1
Authority
EP
European Patent Office
Prior art keywords
lock
door
door lock
locking
lever
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.)
Granted
Application number
EP79710018A
Other languages
German (de)
French (fr)
Other versions
EP0013255B1 (en
Inventor
Gerhard Gemeinböck
Edmund Dipl.Ing. Kreuter
Engelbert Dipl.Ing. Trimmel
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.)
Austria Metall AG
Original Assignee
Vereinigte Metallwerke Ranshoffen Berndorf 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 Vereinigte Metallwerke Ranshoffen Berndorf AG filed Critical Vereinigte Metallwerke Ranshoffen Berndorf AG
Publication of EP0013255A1 publication Critical patent/EP0013255A1/en
Application granted granted Critical
Publication of EP0013255B1 publication Critical patent/EP0013255B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36—Locks for passenger or like doors
    • E05B83/363—Locks for passenger or like doors for railway vehicles

Definitions

  • the invention relates to a door lock which is used for exterior car doors, e.g. Swivel sliding doors for passenger coaches for speeds over 200 km / h.
  • a door lock which should be a functioning connecting link between the operating handles and the door lock. Functions such as "opening” and “closing” must be possible with the door buckle from the inside and outside. Furthermore, the door must be locked from the inside at 5 km / h or locked from the outside and inside at 20 km / h.
  • the lock also includes a reversing device.
  • the invention is therefore based on the object of developing a door lock which is distinguished in particular by its simplicity, smooth operation, switching accuracy and freedom from maintenance. Furthermore, non-ferrous metals were used as the material, which also ensures considerable weight savings.
  • Each actuation handle of the lock is assigned to a non-contact limit switch with a long service life and vibration resistance.
  • an adjustable pull rod 1 is vertically actuated, which engages in a ball-bearing lever 2, which at the same time carries a magnet 3, which actuates the limit switch 16, in the de-energized state via a driver 4, which a likewise ball-bearing lever 5 is actuated, which moves the locking bar 6 to the locking bar 25 horizontally via a security system 7.
  • a movable Druok rod 8 is operated horizontally, which engages in a ball-bearing lever 9, which at the same time carries a magnet 10, which actuates the limit switch 17, in the de-energized state via a driving edge 11 Carries lever 5, which moves the locking rod 6 to the bolt 25 horizontally via a safety system 7 designed as a spring coupling.
  • the locking bar 6 and the locking bar 25 are coupled by means of the security system 7.
  • the locking bar 6 takes the adjustable threaded washer 24 and the spring 23, the sleeve 20 which slides in the guide 22, and thus the bolt 25 bolted.
  • the spring force of the spring 23 must be so strong that the lock can be triggered without compressing the spring.
  • the path of the bolt 25 must be the same as that of the locking rod 6. If the door is locked, the square 14 pivots through 90 ° and pushes the locking lock plate 12 between the stop 21 and the guide 22 into the position 19 shown in dashed lines via the lever 15 and prevents the sleeve 20 from moving. It becomes an actuating handle and thus the rod 6 actuated, the spring 23 takes up the entire path. Through the plate 12, the magnet 13 is simultaneously before the end brought switch 18, which does not execute any of the commands from switches 16 and 17.
  • the mechanically locked door is characterized by the fact that both handles have no function, i.e. the locking latch 12 is moved to the position 19 shown in dashed lines.
  • the actuating handles can be moved freely inside and out, but without deforming the sleeve 20 and the latch 25, so that no damage occurs, since the adjustable safety system 7 prevents this.

Landscapes

  • Lock And Its Accessories (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

1. Door lock, particularly for vehicle doors, having an electrical or electro-pneumatic distant control with the outer and inner operating handles acting on separated coaxially arranged parts, characterized in that a) the outer and inner operating handles are acting by means of pull or push rods (1 or 8) on one lock release lever each (2 or 9) which is coaxially pivoted around an axis (26) and which is supplied with a switching magnet (3 or 10) ; b) the switching magnets (3, 10) each operate a limit switch (16 or 17), without contact, which transfers the orders of the inner or outer operating handles to the door control mechanism ; c) the lock release are connected by means of one engaging pin (4, 11) each on one direction of rotation with a lever (5) which is coaxially pivoted around the axis (26), the lever displacing a coupling rod (6) which is connected by means of a spring clutch (7) with a door-locking bolt (25) which can be blocked by a manual mechanical locking device (12).

Description

Die Erfindung betrifft ein Türschloß, welches für Außenwaggontüren, z.B. Schwenkschiebetüren für Reisezugwagen für Geschwindigkeiten über 200 km/h, ausgelegt ist. Diese hohen Anforderungen und die Bestimmungen des Lastenheftes für europäische Standardreisezugwagen prägen ein Türschloß, welches ein funktionierendes Verbindungsglied zwischen den Betätigungsgriffen und der Türverriegelung sein soll. Es müssen Funktionen wie "Öffnen" und "Schliessen" mit der Türschnalle von innen und außen getätigt werden können. Des weiteren muß die Tür bei 5 km/h von innen aus verriegelt bzw. bei 20 km/h von außen und innen verriegelt sein. Des weiteren beinhaltet das Schloß eine Reversiereinrichtung.The invention relates to a door lock which is used for exterior car doors, e.g. Swivel sliding doors for passenger coaches for speeds over 200 km / h. These high requirements and the provisions of the specification for European standard passenger coaches characterize a door lock, which should be a functioning connecting link between the operating handles and the door lock. Functions such as "opening" and "closing" must be possible with the door buckle from the inside and outside. Furthermore, the door must be locked from the inside at 5 km / h or locked from the outside and inside at 20 km / h. The lock also includes a reversing device.

Zusammenfassend kann gesagt werden, daß sämtliche Kommandos elektro-pneumatischer und mechanischer Art von den Türgriffen ausgelöst und an die Türsteuerung und Verriegelung weitergegeben werden.In summary, it can be said that all electro-pneumatic and mechanical commands are triggered by the door handles and passed on to the door control and locking.

Um die Bestimmungen des Lastenheftes zu erfüllen, müssen von innen und außen - über einen Berner-Schlüssel (Vierkantsohlüssel) - alle Türgriffe des Schlosses vom Betätigungsmechanismus der Verriegelung entkuppelt werden können. Die bisher verwendeten Türschlösser waren aus Preß-, Stanz- und Drehteilen zusammengesetzt, wobei die einzelnen Elemente so ausgelegt waren, daß sie die Bestimmungen des Lastenheftes erfüllten. Ihre Zuverlässigkeit war durch die bisherige Technologie der Schlösser gekennzeichnet und die Ausfallsraten nicht unbedeutend, da Toleranzüberschneidungen der einzelnen Hebel und Bolzen nicht vermieden werden konnten. Genaue exakte Schaltpunkte der elektrischen Elemente konnten nicht festgelegt werden, da diese Bewegungsverzögerungen mit sich brachten..In order to meet the requirements of the specification, all door handles of the lock must be locked from the inside and outside - using a Berner key (square socket key) locking mechanism can be uncoupled. The door locks used to date were composed of pressed, stamped and turned parts, the individual elements being designed so that they met the requirements of the specification. Their reliability was characterized by the previous technology of the locks and the failure rates were not insignificant, as tolerance overlaps of the individual levers and bolts could not be avoided. Exact exact switching points of the electrical elements could not be determined, since these brought delays in motion.

Da die moderne Eisenbahntechnik immer kürzere Intervalle beim Öffnen und Schließen der Türen verlangt, war man gezwungen, neue Erkenntnisse in der Technologie eines Türschlosses zu gehen.Since the modern railway technology requires shorter and shorter intervals when opening and closing the doors, one was forced to gain new knowledge in the technology of a door lock.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Türschloß zu entwickeln, welches sich speziell durch seine Einfachheit, Leichtgängigkeit, Schaltgenauigkeit und Wartungsfreiheit auszeichnet. Des weiteren wurden Nichteisenmetalle als Werkstoff verwendet, welcher auch eine beträchtliche Gewichtseinsparung sichert. Jeder Betätigungsgriff des Schlosses ist einem berührungslosen Endschalter mit hoher Lebensdauer und Erschütterungsfestigkeit zugeordnet.The invention is therefore based on the object of developing a door lock which is distinguished in particular by its simplicity, smooth operation, switching accuracy and freedom from maintenance. Furthermore, non-ferrous metals were used as the material, which also ensures considerable weight savings. Each actuation handle of the lock is assigned to a non-contact limit switch with a long service life and vibration resistance.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die äußeren und inneren Betätigungshandgriffe über Gestänge, Hebel u.dgl. auf koaxial gelagerte, jedoch getrennte, nur über Mitnehmer miteinander in einer Drehrichtung verbundene Schloßankerhebel einwirken, die über vorzugsweise berührungslose Schaltmagneten Endschalter betätigen bzw. die Riegelstange bewegen, die jedoch über eine Federkupplung mit manueller mechanisoher Sperrverriegelung mit dem Riegel verbunden ist. In der Zeichnung ist der Gegenstand der Erfindung beispielsweise dargestellt und an Hand seiner Funktion beschrieben.This object is achieved in that the outer and inner actuating handles on the linkage, lever and the like. act on coaxially mounted but separate lock anchor levers that are only connected to one another in a direction of rotation, which actuate limit switches or preferably move the locking bar via preferably non-contact switching magnets, but which is connected to the bolt via a spring coupling with manual mechanical locking locking. In the drawing, the object of the invention is shown for example and described in terms of its function.

Vom nicht dargestellten Betätigungsgriff innen, der eine horizontale Drehbewegung ausführt, wird eine veretellbare Zugstange 1 vertikal betätigt, die in einen kugelgelagerten Hebel 2 eingreift, der gleichzeitig einen Magnet 3 trägt, welcher den Endschalter 16 betätigt, im stromlosen Zustand über einen Mitnehmer 4, der einen ebenfalls kugelgelagerten Hebel 5 betätigt, der die Riegelstange 6 zum Riegel 25 über ein Sicherheitssystem 7 horizontal bewegt. Vom ebenfalls nicht dargestellten Betätigungsgriff außen, der eine horizontale Drehbewegung ausführt, wird eine bewegliche Druokstange 8 horizontal betätigt, die in einen kugelgelagerten Hebel 9 eingreift, der gleichzeitig einen Magnet 10 trägt, welcher den Endschalter 17 betätigt, im stromlosen Zustand über eine Mitnehmerkante 11 den Hebel 5 mitnimmt, der die Riegelstange 6 zum Riegel 25 über ein als Federkupplung ausgebildetes Sicherheitssystem 7 horizontal bewegt. Die Riegelstange 6 und der Riegel 25 werden mittels des Sicherheitssystems 7 gekoppelt. Die Riegelstange 6 nimmt über die verstellbare Gewindescheibe 24 und die Feder 23 die Hülse 20, welche in der Führung 22 gleitet, und damit den angeschraubten Riegel 25 mit. Die Federkraft der Feder 23 muß so stark sein, daß ohne die Feder zusammenzudrücken, die Verriegelung ausgelöst werden kann. Der Weg des Riegels 25 muß gleich dem der Riegelstange 6 sein. Wird die Tür abgesperrt, schwenkt der Vierkant 14 um 90° und schiebt über den Hebel 15 die Sperrverriegelungsplatte 12 zwischen den Anschlag 21 und die Führung 22 in die gestrichelt gezeichnete Position 19 und verhindert ein Bewegen der Hülse 20. Wird ein Betätigungsgriff und somit die Stange 6 betätigt, so nimmt die Feder 23 den gesamten Weg auf. Durch die Platte 12 wird gleichzeitig der Magnet 13 vor den Endschalter 18 gebracht, welcher keine der Befehle von den Schaltern 16 und 17 ausübt.From the actuating handle, not shown, which performs a horizontal rotary movement, an adjustable pull rod 1 is vertically actuated, which engages in a ball-bearing lever 2, which at the same time carries a magnet 3, which actuates the limit switch 16, in the de-energized state via a driver 4, which a likewise ball-bearing lever 5 is actuated, which moves the locking bar 6 to the locking bar 25 horizontally via a security system 7. From the outside operating handle, also not shown, which performs a horizontal rotary movement, a movable Druok rod 8 is operated horizontally, which engages in a ball-bearing lever 9, which at the same time carries a magnet 10, which actuates the limit switch 17, in the de-energized state via a driving edge 11 Carries lever 5, which moves the locking rod 6 to the bolt 25 horizontally via a safety system 7 designed as a spring coupling. The locking bar 6 and the locking bar 25 are coupled by means of the security system 7. The locking bar 6 takes the adjustable threaded washer 24 and the spring 23, the sleeve 20 which slides in the guide 22, and thus the bolt 25 bolted. The spring force of the spring 23 must be so strong that the lock can be triggered without compressing the spring. The path of the bolt 25 must be the same as that of the locking rod 6. If the door is locked, the square 14 pivots through 90 ° and pushes the locking lock plate 12 between the stop 21 and the guide 22 into the position 19 shown in dashed lines via the lever 15 and prevents the sleeve 20 from moving. It becomes an actuating handle and thus the rod 6 actuated, the spring 23 takes up the entire path. Through the plate 12, the magnet 13 is simultaneously before the end brought switch 18, which does not execute any of the commands from switches 16 and 17.

Wesentlich ist demnach der zentrisch angeordnete elektromechanische Schloßanker, welcher spielfrei in der Schloßgrundplatte gelagert ist (Kunststoffkugellager), der aus den Hebeln 2, 5, 9 und den Schaltmagneten 3 und 10 besteht. In Funktionsverbindung mit den berührungelosen Endschaltern 16 und 13 ermöglicht er die Befehle der Betätigungsgriffe innen und außen an die Türsteuerung weiterzugeben.What is essential is the centrally arranged electromechanical lock anchor, which is mounted in the lock base plate without play (plastic ball bearing), which consists of the levers 2, 5, 9 and the switching magnets 3 and 10. In functional connection with the contactless limit switches 16 and 13, it enables the commands of the actuating handles to be passed on to the door control inside and outside.

Diese einfache konstruktive Anordnung ersetzt eine Unzahl von Hebelkombinationen herkömmlicher Schloßausführungen. Die mechanisch abgesperrte Tür zeichnet sich dadurch aus, daß beide Griffe keine Funktion ausüben, d.h. die Sperrverriegelung 12 ist in die gestrichelt gezeichnete Stellung 19 gerückt. Es können die Betätigungsgriffe innen und außen frei bewegt werden, jedoch ohne die Hülse 20 und den Riegel 25 zu verformen, so daß kein Schaden auftritt, da das verstellbare Sicherheitssystem 7 dies verhindert.This simple structural arrangement replaces a myriad of lever combinations of conventional lock designs. The mechanically locked door is characterized by the fact that both handles have no function, i.e. the locking latch 12 is moved to the position 19 shown in dashed lines. The actuating handles can be moved freely inside and out, but without deforming the sleeve 20 and the latch 25, so that no damage occurs, since the adjustable safety system 7 prevents this.

Claims (3)

1. Türschloß insbesondere für Fahrzeugtüren mit elektrischer oder elektro-pneumatischer Fernsteuerung, dadurch gekennzeichnet, daß die äußeren und inneren Betätigungshandgriffe über Gestänge (1, 8), Hebel u.dgl. auf koaxial gelagerte, jedoch getrennte, nur über Mitnehmer (4, 11) miteinander in einer Drehrichtung verbundene Schloßankerhebel (2, 9, 5) einwirken, die über vorzugsweise berührungslose Schaltmagneten (3, 10) Endschalter (16, 17) betätigen bzw. die Riegelstange (6) bewegen, die jedoch über eine Federkupplung (7) mit manueller mechanischer Sperrverriegelung (12, 14, 15, 21) mit dem Riegel (25) verbunden ist.1. Door lock in particular for vehicle doors with electrical or electro-pneumatic remote control, characterized in that the outer and inner actuating handles via linkage (1, 8), levers and the like. act on coaxially mounted but separate lock anchor levers (2, 9, 5) which are only connected to one another in a direction of rotation by drivers (4, 11) and which actuate limit switches (16, 17) via preferably non-contact switching magnets (3, 10) or which Move the locking bar (6), which is, however, connected to the locking bar (25) via a spring coupling (7) with a manual mechanical locking lock (12, 14, 15, 21). 2. Türschloß nach Anspruch 1, dadurch gekennzeichnet, daß die Sperrverriegelung (12, 14, 15) ebenfalls Magnetschalter (13, 18) zur Steuerung bzw. Signalisierung aufweist.2. Door lock according to claim 1, characterized in that the locking lock (12, 14, 15) also has magnetic switches (13, 18) for control or signaling. 3. Türschloß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Federkupplung (7) eine mit dem Riegel (25) fest verbundene Hülse (20) aufweist, in der die Riegelstange (6) liegt und mit ihr über eine Schraubendruckfeder (23) auf Zug gekoppelt ist.3. Door lock according to claim 1 or 2, characterized in that the spring clutch (7) has a fixed to the bolt (25) sleeve (20) in which the locking rod (6) lies and with it via a helical compression spring (23) is coupled to train.
EP79710018A 1978-12-22 1979-12-14 Door lock, particularly for vehicle doors Expired EP0013255B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0921178A AT367362B (en) 1978-12-22 1978-12-22 DOOR LOCK, ESPECIALLY FOR A VEHICLE DOOR
AT9211/78 1978-12-22

Publications (2)

Publication Number Publication Date
EP0013255A1 true EP0013255A1 (en) 1980-07-09
EP0013255B1 EP0013255B1 (en) 1983-07-06

Family

ID=3612172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79710018A Expired EP0013255B1 (en) 1978-12-22 1979-12-14 Door lock, particularly for vehicle doors

Country Status (5)

Country Link
EP (1) EP0013255B1 (en)
AT (1) AT367362B (en)
DE (1) DE2965832D1 (en)
DK (1) DK532979A (en)
NO (1) NO151252C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051149A1 (en) * 1980-11-03 1982-05-12 Austria Metall Aktiengesellschaft Door fastening, especially for vehicles
US8079631B2 (en) 2009-11-18 2011-12-20 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for guiding a drive rod in a door after an impact to the door
US8128151B2 (en) 2009-09-11 2012-03-06 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for disengaging a drive rod in a door after an impact to the door
US8235451B2 (en) 2009-11-16 2012-08-07 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for deforming a drive rod in a door after an impact to the door
WO2014166161A1 (en) * 2013-04-08 2014-10-16 上海冠益实业有限公司 Mortise lock with convertible automatic/manual locking state
CN105332603A (en) * 2015-09-28 2016-02-17 扬中中科维康智能科技有限公司 Novel mechanical structure of subway escape door
WO2016058655A1 (en) * 2014-10-18 2016-04-21 Daimler Ag Closing device for a vehicle door and vehicle door compprising such a closing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394415B (en) * 1989-11-27 1992-03-25 Jenbacher Werke Ag Apparatus for closing and opening a door

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE242762C (en) * 1900-01-01
CH34927A (en) * 1906-01-27 1906-08-15 Hauser Weidmann J Lock for rod locks
FR938409A (en) * 1945-04-16 1948-09-15 Improvements to door locks
US2459029A (en) * 1946-04-17 1949-01-11 Empire Electric Brake Company Door locking system
US2614876A (en) * 1947-05-17 1952-10-21 American Hardware Corp Latch
US2827321A (en) * 1955-01-19 1958-03-18 Gen Motors Corp Door latch for a pillarless automobile
US3062034A (en) * 1959-09-08 1962-11-06 Gen Motors Corp Coincidental door locking system
DE1703929B2 (en) * 1968-08-01 1976-03-04 Schaltbau Gesellschaft mbH, 8000 München ELECTROMAGNETIC MOVEMENT DEPENDENT LOCKING DEVICE
AT346383B (en) * 1977-03-14 1978-11-10 Iventio Ag LOCK LOCK WITH REMOTE LOCK RELEASE OF A RAILWAY ENTRANCE DOOR

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE242762C (en) * 1900-01-01
CH34927A (en) * 1906-01-27 1906-08-15 Hauser Weidmann J Lock for rod locks
FR938409A (en) * 1945-04-16 1948-09-15 Improvements to door locks
US2459029A (en) * 1946-04-17 1949-01-11 Empire Electric Brake Company Door locking system
US2614876A (en) * 1947-05-17 1952-10-21 American Hardware Corp Latch
US2827321A (en) * 1955-01-19 1958-03-18 Gen Motors Corp Door latch for a pillarless automobile
US3062034A (en) * 1959-09-08 1962-11-06 Gen Motors Corp Coincidental door locking system
DE1703929B2 (en) * 1968-08-01 1976-03-04 Schaltbau Gesellschaft mbH, 8000 München ELECTROMAGNETIC MOVEMENT DEPENDENT LOCKING DEVICE
AT346383B (en) * 1977-03-14 1978-11-10 Iventio Ag LOCK LOCK WITH REMOTE LOCK RELEASE OF A RAILWAY ENTRANCE DOOR

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051149A1 (en) * 1980-11-03 1982-05-12 Austria Metall Aktiengesellschaft Door fastening, especially for vehicles
US8128151B2 (en) 2009-09-11 2012-03-06 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for disengaging a drive rod in a door after an impact to the door
US8398148B2 (en) 2009-09-11 2013-03-19 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for disengaging a drive rod in a door after an impact to the door
US8235451B2 (en) 2009-11-16 2012-08-07 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for deforming a drive rod in a door after an impact to the door
US8079631B2 (en) 2009-11-18 2011-12-20 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for guiding a drive rod in a door after an impact to the door
WO2014166161A1 (en) * 2013-04-08 2014-10-16 上海冠益实业有限公司 Mortise lock with convertible automatic/manual locking state
WO2016058655A1 (en) * 2014-10-18 2016-04-21 Daimler Ag Closing device for a vehicle door and vehicle door compprising such a closing device
CN105332603A (en) * 2015-09-28 2016-02-17 扬中中科维康智能科技有限公司 Novel mechanical structure of subway escape door

Also Published As

Publication number Publication date
NO794132L (en) 1980-06-24
DE2965832D1 (en) 1983-08-11
EP0013255B1 (en) 1983-07-06
NO151252B (en) 1984-11-26
ATA921178A (en) 1981-11-15
AT367362B (en) 1982-06-25
DK532979A (en) 1980-06-23
NO151252C (en) 1985-03-06

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