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EP0188405B1 - Anordnung zur verhinderung des plötzlichen herabstürzens einer tür - Google Patents

Anordnung zur verhinderung des plötzlichen herabstürzens einer tür Download PDF

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Publication number
EP0188405B1
EP0188405B1 EP83903116A EP83903116A EP0188405B1 EP 0188405 B1 EP0188405 B1 EP 0188405B1 EP 83903116 A EP83903116 A EP 83903116A EP 83903116 A EP83903116 A EP 83903116A EP 0188405 B1 EP0188405 B1 EP 0188405B1
Authority
EP
European Patent Office
Prior art keywords
spring
locking
arrangement
door
axle
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
EP83903116A
Other languages
English (en)
French (fr)
Other versions
EP0188405A1 (de
Inventor
Sven-Ivar Thomasson
Tomas Andersson
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.)
Crawford Door AB
Original Assignee
Crawford Door AB
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 Crawford Door AB filed Critical Crawford Door AB
Priority to AT83903116T priority Critical patent/ATE39726T1/de
Publication of EP0188405A1 publication Critical patent/EP0188405A1/de
Application granted granted Critical
Publication of EP0188405B1 publication Critical patent/EP0188405B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1269—Spring safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/003—Anti-dropping devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
    • E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

  • the present invention relates to an arrangement for preventing a substantially vertically movable door from dropping according to the pre-characterizing portion of claim 1.
  • SE-B-341 681 discloses such an arrangement for preventing a substantially vertically movable door from dropping, wherein locking means are provided which, in the case of failure of the balancing spring, automatically engage with a locking device, which is rigidly linked with a door operating axle, and thus prevent any movement of the door.
  • the spring element which is disposed between the spring fixing and the door operating device and which can be designed as torsion spring and as arrangement of the springs connected in series, safeguards a gradual transmission of the braking moment so that possible peak loadings of the door operating axle are avoided.
  • the spring element can be disposed adjacent the door operating device according to the claims 2 to 5 or in adjacent relationship to the locking means according to claims 6 to 8.
  • the arrangement functions both on hand-operated and mechanically operated doors and is not actuated until the spring failure occurs.
  • the arrangement is also simple to mount in place, and provides a high level of safety by effectively stopping the door over a short distance when spring failure occurs. Moreover, subsequent adjustment is not required, and re-setting of the arrangement or replacement of parts after actuation is simple and requires no special tools.
  • the arrangement is reliable and actuation is not initiated by vibrations and impacts during the movement of the door.
  • the arrangement is intended to be composed of three units, namely, a stop unit, a trigger unit and, in the present case, a cross-linking connection unit.
  • FIG. 1 a first embodiment of an arrangement 1 for preventing a door from dropping down precipitately is shown.
  • a trigger unit 2 is formed in the arrangement 1 of a spring holder 3, preferably constructed as a plate, which bears a plurality of spring fixings 4 with which one end 5A of a balancing spring 5, preferably made as a helically wound spring, is connected, for a door which is designed to be guided in tracks along its side edges and moved along the tracks to open up or close a doorway, etc. disposed between these guide tracks.
  • a cover 6, around which the balancing spring 5 extends, is rigidly connected, for example by welding, to the spring holder 3 and forms a so-called "neck” for the spring fixing 3, 4 which is formed as a neck fixing.
  • An axle 7 extends
  • a plurality of locking means 10 are disposed, distributed along the axial extent of the arrangement 1, preferably rigidly connected to the holder 9, and preferably pin-shaped.
  • a pressure spring 11 or a spring arrangement of some other suitable kind is designed to act between the holder 9 and the cover 6, forcibly urging the locking means 10 in the axial direction of an arrow 12, towards a locking wheel 13 provided with receiving holes 18.
  • the locking wheel 13 is expediently mounted on one end 14A of a clamping collar 14 connected to the axle 7 and non-rotatable relative thereto.
  • the axle 7 extends through the arrangement 1, which can be doubled up due to the fact that the clamping collar 14 may be fitted with a further locking wheel 13' on the opposite end 14B of the clamping collar 14 with which appropriate locking elements of another arrangement for preventing precipitate dropping down can coact in a similar way as in the arrangement 1 described above.
  • the clamping collar 14, which is preferably slit along one of its sides, is connected via a bracket connection 15 to a plurality of wall mounting brackets 16 for example, and is securely clamped to the axle 7 by means of a plurality of bolt units 17 around a wedge 7B which acts between the axle 7 and the clamping collar 14.
  • a fixed plate or a similarly constructed fixed element 19 is connected to the wall mounting bracket 16 by means of screws 20, for example, so that it cannot be rotated.
  • the fixed element 19 has a sleeve-shaped bearing 21 which is designed to accommodate, for example, a circular ball bearing 22 to act between the axle 7 and the arrangement 1 containing the fixed element 19.
  • a plurality of spacer sleeves 23 are accommodated in corresponding slit-shaped grooves 24 extending over the circumference of the fixed element 19 and in holes 25 adapted to the spacer sleeves 23 and extending through the spring holder 3, and are held together by means of a screw 26 and a nut 27 in such a way as to allow the fixed element 19 and the spring holder 3 to be rotated relative to each other.
  • a trigger spring 28 such as a helical tension spring, for example, is fixed by one 28A of its ends to a part 19A of the fixed element 19 and is connected by its other end 28B to a spring fixing lug 29 projecting out from the spring holder 3.
  • the operation of the above-described arrangement 1 is as follows: During normal operation of the door the tension moment is transferred from the balancing spring 5, which is connected non-rotatably via its other free end to the axle 7, which forms the connection to a door operating device, such as a cable pulley, for example. Normally the balancing spring 5, or balancing springs in the case where more than one is provided, balances the door so that it can be moved easily in the desired direction. When, for example, spring breakge or some other spring failure occurs, the tension moment from the balancing spring 5 ceases to act on the spring holder 3.
  • a number of through- bores or holes 31 adapted to the locking means 10 thereby come into position directly in front of respective locking means 10, which were previously urged by the pressure spring 11 to rest against the fixed element 19 on a sliding surface 19b, which is bounded in the lateral direction of the holes 31, which can also be surrounded by the sliding surfaces 19B.
  • the locking means 10 quickly come into engagement with their associated corresponding receiving holes 18 of the locking wheel 13 or 13' respectively after they are inserted via their front section through the holes 31 and the spring holder 3 rotates around the axle 7 as the spacer sleeves 23 move along the slit-shaped grooves 24 in the fixed element 19.
  • the locking wheel 13 is hereby prevented from rotating with the axle 7 and the movement of the door ceases or is reduced in this way.
  • the axle 7 acts here with a damping effect since it acts like a torsion spring which prevents the operating mechanism, such as ropes and axles, for example, from being overloaded by violent jerking due to the direct and effective locking of the movement. It is consequently desirable that the arrangement 1 is mounted with a certain minimum spacing from the cable drum, etc.
  • split pin 32 which acts between the fixed element 19 and the spring holder 3 it is possible to prevent the movement of these parts, for example when the arrangement 1 is being assembled.
  • An arrangement 101 for preventing a door from dropping down precipitately may comprise three units: namely, a stop unit 102, a trigger unit 103, and a cross-linking connection unit 104, the arrangement containing at least the first two units mentioned.
  • FIG 9 shows how, depending on door weight and hoisting speed, for example in an arrangement according to Figures 13-27, two trigger units 103 are both joined to their respective balancing spring 106 connected to a hoisting operation axle 105, with a stop unit 102 connected to one of the trigger units 103 and linked to the other trigger unit 103 via a cross-linking connection unit 104.
  • Figure 10 shows how trigger units 103 joined to their respective balancing spring 106 are connected to their respective stop unit 102 located by the respective trigger units 103, and are connected in a cross-over fashion to each other via the cross-linking connection units 104.
  • Figure 11 shows the coupling together of two separately mounted trigger units 103 with an integrated trigger and stop unit 107 via a cross-linking connection unit 104 made up of springloaded lines 108.
  • Figure 12 shows how the cross-linking connection unit 104 can be composed of a plurality of separate interconnected lines 109.
  • An integrated trigger and stop unit 107, or a separate stop unit 102, which is shown in Figures 13-14, comprises two elements which are counter-rotatable relative to each other, namely, a locking ring 110 and a locking gear 111, which are designed to rotate with each other when the door is operating normally.
  • the locking elements 110, 111 have a plurality of friction surfaces 112 and 113 respectively, disposed over the opposing side surfaces 110A and 111A respectively and sloping in a tangential direction; these friction surfaces 112, 113 are continued into locking surfaces 114 and 115 respectively which extend in the axial direction.
  • a plurality of tooth elements 116 are arranged, preferably evenly distributed; with these tooth elements 116 a plurality of locking dogs 130, which are bearing-mounted so that they can rotate around bearings 118 disposed on the circumference of the stop unit 102, are able to co- act.
  • the locking gear 111 is connected non-rotatably to the locking ring 110 during normal operation, for example by means of tooth elements 110B and 111B respectively.
  • the two locking elements 110, 111 are acted upon by a spring element 120, preferably a stack of disc springs compressed between locking elements 121 and 122 respectively, such as locking rings, for example, which co-act with the axle 105, 119 and are provided on either side of the locking elements 110,111 and the spring element 120, urging them towards each other so that the locking surfaces 114, 115 are engaged with each other during normal operation of the door.
  • Flange arrangements 123 and 124 arranged between the two locking elements 110, 111 respectively are designed to form a rotating bearing between the locking elements 110, 111.
  • the friction surfaces 112, 113 on the two locking elements 110, 111 are, as stated above, made with a sloping plane. This makes it possible for the braking moment to be engaged "gently” and to be increased with the rotary angle until the maximum value is reached and/or the movement of the door is stopped. To obtain the greatest ppssible quantity of work it is expedient to select the springs of the spring element 120 with a degressive spring characteristic.
  • the desired braking moment forthe arrangement 101 can easily be obtained, as stated, by varying and adjusting the spring force and/or varying the angle of inclination A at the friction surfaces 112, 113.
  • one end of the balancing spring 106 can be connected to a spring holder 125 and its other end to the drive axle 105.
  • a trigger unit 103 which is shown in Figures 15-16 and 17-18 and which comprises a spring holder 126 to which a second balancing spring, quite separate from the balancing spring which is connected to the spring holder 125, is connected to the spring holder 125 via a cross-linking connection unit made, for example, as a cord 127, by passing itthrough an opening 128 in the periphery thereof.
  • the cord 127 also extends via a releasing ring 129 which is designed to act on the locking dogs 130, which are urged by a spring element 117 to pivot in the direction of the locking ring 110 and the toothed elements 116 appertaining thereto.
  • the cord 127 extends further over a pulley or the like (not shown) to a further trigger unit 103. If the cord ⁇ 127should go slack,which occurs if any ofthe inter-connected balancing springs breaks or its spring effect is reduced in some other way, the spring holder or fixing 125 which is guided over the circumference of the unit 107 in slit-shaped openings 131 via controlling bolts 132, is able to rotate in the direction of an arrow 133, and thereby rotates the releasing ring 129 with it.
  • the locking dogs 130 which are normally influenced by the releasing ring 129 by co-action between a projection 135 provided on the respective locking dogs 130 and a stop 134A located at one end of a slit-shaped recess 134 in the releasing ring 129, for example, forcing them out of engagement with the tooth elements 116 on the locking ring 110 against the effect of the respective spring elements 117 on the respective locking dogs 130, are able now to be pivoted round the locking dog bearing 118 under the effect of the associated spring elements 117, and in towards the tooth elements 116 on the locking ring 110, blocking its rotary movement.
  • the locking gear 111 strives to continue to rotate. Due to the slope on the opposing side surfaces 110A and 111A respectively, the spring element 120 is compressed and the braking moment is increased rapidly, whereby the movement and the operation of the door is stopped.
  • the trigger unit 103 consists of the above-mentioned spring holder or fixing 126 and a fixed bracket 136 around which the spring fixing 126 is rotatably mounted via pins 137 which are accommodated in slit-shaped openings 138 disposed in the spring fixing 126, i.e. there are similar parts to those which form the stop unit located in the central part of the integrated stop and trigger unit 107.
  • a trigger spring 140 acts between the spring fixing 126 and the fixed bracket 136, urging the spring fixing 126 to rotate relative to the fixed bracket 136.
  • Re-setting of the arrangement again in the ready-for-braking state is effected simply by coupling up the existing cross-linking connection cords 127 in the above-mentioned way, after replacing any faulty balancing springs etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Measuring Volume Flow (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Control Of Eletrric Generators (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Prostheses (AREA)
  • Control Of Multiple Motors (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Control Of Transmission Device (AREA)
  • Springs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Crushing And Grinding (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Special Wing (AREA)
  • Lubricants (AREA)

Claims (9)

1. Anordnung zum Verhindern des Herunterfallens einer im wesentlichen vertikal bewegbaren Tür, auf die eine Pufferfeder (5; 106) einwirkt, die mit einer Federhalterung (3, 4; 125, 126) verbunden ist, die sich in Richtung auf eine Blockierstellung bewegt, falls die Federkraft der Pufferfeder (5; 106) versagt, wobei Blockierteile (10; 110; 116), die an der Federhalterung (3, 4; 125, 126) angeordnet sind, mit einer Blockiervorrichtung (13, 130) in Eingriff bringbar sind, so daß die Bewegung einer Türhandhabungsvorrichtung arretiert wird, die eine Achse (7; 105) aufweist, dadurch gekennzeichnet, daß die Blockierteile (10; 110, 116) in bezug auf die Achse (7; 105) der Türhandhabungsvorrichtung axial bewegbar sind und daß zwischen der Federhalterung (3, 4; 125, 126) und der Achse (7; 105) der Türhandhabungsvorrichtung ein Federelement (11; 120) zur Dämpfung der Übertragung des Bremsmoments zwischen der Federhalterung (3, 4; 125, 126) und der Achse (7; 105) der Türhandhabungsvorrichtung vorgesehen ist.
2. Anordnung nach Anspruch 1, bei der die Pufferfeder wendelförmig gewunden und an ihrem einen Ende (5A) mit der Federhalterung (3, 4) verbunden ist, welche ein Federhalteteil (3) aufweist, das relativ zur Blockiervorrichtung (13) bzw. zu einem befestigten Teil, welches vorzugsweise als befestigte Platte (19) ausgeführt ist, verdrehbar ist, wobei eine Auslöseanordnung, die vorzugsweise als Auslösefeder (28) ausgebildet ist, zwischen dem Federhalteteil (3) und dem befestigten Teil (19) wirkt und dazu geeignet ist, das Federhalteteil (3) relativ zu dem befestigten Teil (19) zu verdrehen.
3. Anordnung nach Anspruch 2, bei der das befestigte Teil (19) eine Vielzahl Löcher (31) aufweist, durch die die Blockierteile (10) ragen, wenn sie nach der Relativverdrehung zwischen dem befestigten Teil (19) und dem Federhalteteil (3) in eine Stellung unmittelbar vor den entsprechenden Löchern (31) geraten.
4. Anordnung nach Anspruch 3, bei der die Blockierteile (10) Stifte sind, die in der Blockiervorrichtung (13) aufgenommen werden können, wobei die Blockiervorrichtung (13) zumindest ein Blockierrad (13) aufweist, welches mit Aufnahmelöchern (18) ausgerüstet ist und mit der Achse (7) verbunden ist, wobei die Achse (7) in einem Lager (21) gelagert, mit derTürhandhabungsvorrichtung verbunden und vorzugsweise als Torsionsfederelement ausgebildet ist.
5. Anordnung nach Anspruch 4, bei der die Stifte (10) auf einem Halter (9) befestigt sind, der zwangsweise von einer Druckfeder (11) beaufschlagt wird, so daß er in Richtung auf die Aufnahmelöcher (18) des Blockierrads (13) bewegt wird.
6. Anordnung nach Anspruch 1 oder 2, bei der die Blockierteile einen Blockierring (110) aufweisen, der zwangsweise von dem Federelement (120) beaufschlagt wird, um in Richtung auf ein Blockierrad (111) bewegt zu werden, wobei der Blockierring (110) unverdrehbar mit der Achse (119) der Türhandhabungsvorrichtung verbunden ist, und wobei der Blockierring (110) und das Blockierrad (111) derart ausgeführt sind, daß sie sich normalerweise gegeneinander verdrehen.
7. Anordnung nach Anspruch 6, bei der der Blockierring (110) Zahnteile (116) aufweist, die über seinen Umfang verteilt sind und mit denen die Blockiervorrichtung (130), die vorzugsweise als Blockierklaue (130) ausgeführt ist, auf die ein Freigabering (129) einwirken kann, der mit der Federhalterung (125,126) zusammenwirken kann, in Eingriff bringbar ist, und bei der der Blockierring (110) und das Blockierrad (111) Reibflächen (112, 113) aufweisen, die in Tangentialrichtung geneigt sind, miteinander zusammenwirken können und sich in sich axial erstreckenden Blockierflächen (114, 115) fortsetzen.
8. Anordnung nach Anspruch 6 oder 7, bei der das Federelement (120) eine Vielzahl Federn mit degressiver Federcharakteristik aufweist, vorzugsweise Tellerfedern.
EP83903116A 1983-09-26 1983-09-26 Anordnung zur verhinderung des plötzlichen herabstürzens einer tür Expired EP0188405B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83903116T ATE39726T1 (de) 1983-09-26 1983-09-26 Anordnung zur verhinderung des ploetzlichen herabstuerzens einer tuer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1983/000336 WO1985001543A1 (en) 1983-09-26 1983-09-26 An arrangement for preventing a door from dropping down precipitately

Publications (2)

Publication Number Publication Date
EP0188405A1 EP0188405A1 (de) 1986-07-30
EP0188405B1 true EP0188405B1 (de) 1989-01-04

Family

ID=20349720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83903116A Expired EP0188405B1 (de) 1983-09-26 1983-09-26 Anordnung zur verhinderung des plötzlichen herabstürzens einer tür

Country Status (7)

Country Link
EP (1) EP0188405B1 (de)
AT (1) ATE39726T1 (de)
DE (1) DE3378836D1 (de)
DK (1) DK158238C (de)
FI (1) FI78959C (de)
NO (1) NO161339C (de)
WO (1) WO1985001543A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402343A1 (de) * 1984-01-24 1985-08-01 Hörmann KG Brockhagen, 4803 Steinhagen Federueberwachungsgeraet
DE3425909A1 (de) * 1984-01-24 1986-01-23 Hörmann KG Brockhagen, 4803 Steinhagen Federueberwachungsgeraet
DE3427504C1 (de) * 1984-07-26 1985-08-22 Menke, Wilhelm, 4425 Billerbeck Federbruchsicherung fuer ein Sektionaltor oder dergleichen
SE457814B (sv) * 1986-08-07 1989-01-30 Crawford Door Prod Anordning vid ett fjaederbrottskydd foer en takskjutport eller liknande
US7114753B2 (en) 2001-02-09 2006-10-03 Rite-Hite Holding Corporation Latch assembly for a sectional door
US11767696B2 (en) * 2017-08-04 2023-09-26 Assa Abloy Entrance Systems Assembly comprising a housing with a balancing spring break protection mechanism for a door system such as a sectional door system and a door system including the assembly
SE546418C2 (sv) * 2021-06-17 2024-10-29 Anders Beyron Fallskyddsanordning, samt vertikalgående industriport med fallskyddsanordning

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1863961A (en) * 1931-05-08 1932-06-21 Richmond Fireproof Door Compan Safety device for suspended doors
FR1043611A (fr) * 1951-10-03 1953-11-10 Ets Ad Mischler Sarl Parachute pour portes basculantes
US2878865A (en) * 1956-02-09 1959-03-24 United States Steel Corp Safety stop for roll-up door
GB1013115A (en) * 1962-02-02 1965-12-15 Hill Aldam & Company Ltd E Improvements in or relating to door opening mechanisms
SE341681B (de) * 1970-02-27 1972-01-10 Windsor Door Ab
DE2447090A1 (de) * 1974-10-02 1976-04-08 Waldner Kg H Fallsicherungsvorrichtung
DE2600446C2 (de) * 1976-01-08 1982-07-08 Heidesäge Jakob Vogt, 5401 Buchholz Garagentor
DE2649629C2 (de) * 1976-10-29 1983-06-30 Hörmann KG Amshausen, 4803 Steinhagen Antrieb mit Unfallverhütungseinrichtung für Tore oder dergleichen
DE2736329C3 (de) * 1977-08-12 1981-10-29 Ringspann Albrecht Maurer Kg, 6380 Bad Homburg Überlastkupplung

Also Published As

Publication number Publication date
EP0188405A1 (de) 1986-07-30
FI78959B (fi) 1989-06-30
NO161339B (no) 1989-04-24
FI854991A (fi) 1985-12-16
FI78959C (fi) 1989-10-10
NO852089L (no) 1985-05-24
DE3378836D1 (en) 1989-02-09
ATE39726T1 (de) 1989-01-15
DK228785A (da) 1985-05-23
FI854991A0 (fi) 1985-12-16
DK158238B (da) 1990-04-16
DK228785D0 (da) 1985-05-23
WO1985001543A1 (en) 1985-04-11
NO161339C (no) 1989-08-02
DK158238C (da) 1990-09-17

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