EP0476788B1 - Flexible aufrollbare Tür - Google Patents

Flexible aufrollbare Tür Download PDF

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Publication number
EP0476788B1
EP0476788B1 EP91203021A EP91203021A EP0476788B1 EP 0476788 B1 EP0476788 B1 EP 0476788B1 EP 91203021 A EP91203021 A EP 91203021A EP 91203021 A EP91203021 A EP 91203021A EP 0476788 B1 EP0476788 B1 EP 0476788B1
Authority
EP
European Patent Office
Prior art keywords
curtain
slideway
wall
door
slide
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 - Lifetime
Application number
EP91203021A
Other languages
English (en)
French (fr)
Other versions
EP0476788A2 (de
EP0476788A3 (en
Inventor
Bernard Kraeutler
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.)
Nergeco SA
Original Assignee
Nergeco SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26227336&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0476788(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FR8906592A external-priority patent/FR2647151A1/fr
Application filed by Nergeco SA filed Critical Nergeco SA
Publication of EP0476788A2 publication Critical patent/EP0476788A2/de
Publication of EP0476788A3 publication Critical patent/EP0476788A3/fr
Application granted granted Critical
Publication of EP0476788B1 publication Critical patent/EP0476788B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B9/581—Means to prevent or induce disengagement of shutter from side rails
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B2009/585—Emergency release to prevent damage of shutter or guiding device

Definitions

  • the present invention relates to the doors of premises and industrial buildings, sheds and shops, formed by a flexible curtain, semi-rigid or rigid, foldable or rollable, which releases a bay by rising and closes it down, the curtain being stored in top of the door when it is raised, by winding or folding. Some of these doors are exposed to the action of the wind. To avoid significant deformation which could damage or block the door, various means are known. You can fix on the vertical edges of the curtain an extra thickness or pads that slide in a cannula (like boat sails). We also use horizontal reinforcement bars spaced vertically, and the ends of which slide in slides.
  • the present invention relates to a lifting curtain lifting door comprising two vertical lateral uprights each constituting or comprising a slide, each slide having a guide wall on either side of the plane of the curtain, the latter being able to pile up at the top by winding or folding, the curtain having edges which slide in said slides, said edges being adapted to come out of the slides in the event of abnormal transverse force. This prevents the curtain from being damaged in the event of an impact.
  • the subject of the present invention is therefore a handling door with a lifting curtain comprising two vertical lateral uprights each comprising a slide, each slide having a guide wall on either side of the plane of the curtain, the latter being able to collect at the upper part by winding or folding, the curtain having edges which slide in said slides, said edges being adapted to come out of the slides in the event of abnormal transverse force, the wall of each slide having an opening allowing an edge of the curtain to pass from the outside towards the inside of the slide, characterized in that at least one of the external walls of the uprights is provided with a guide projecting on said wall above said opening, and generally oriented upwards and towards the opening of the slide, this guide extending over at least part of the width of said wall to the edge of the opening of the slide, so as to bring through said opening into the slide an edge of the curtain drawn upwards which would have come out.
  • the wall of the slide or the wall of the upright comprising the slide comprises opposite at least one of said openings at least one movable wall element which can deform elastically so as to be able to close or release said opening to allow the edge of the curtain to pass from the outside to the inside of the slide, but not in reverse.
  • the movable wall element is a section of a wall of the slide, parallel to the plane of the curtain and movable around its lower edge, and moves towards the inside of the slide between the two walls delimiting the normal sliding path of the edges of the curtain.
  • the movable wall element is a section of an outer wall of an upright containing the slide, in an oblique plane with respect to the plane of the curtain, said section is movable around its most outside, and moves towards the bottom of the slide without interfering with it, to form an access path with an opening in the slide.
  • Figure 1 shows in perspective an embodiment of a frame, or gantry, of a handling door according to the invention.
  • the frame has two vertical lateral uprights 1, 2, joined at their upper ends by a cross member 3 forming a lintel.
  • Each upright has in section the shape of a pentagon open at a vertex, with a base a, two sides b perpendicular to the base, and two sides c approaching, leaving between their ends a gap d which constitutes the opening d 'a slide 21 in each upright, to each receive an edge of the curtain 4, and the ends of reinforcing bars 5.
  • the opposite sides may or may not be equal.
  • the curtain is supposed to be made of transparent material (which is possible and actually done in some cases).
  • Figure 2 is a horizontal sectional view of an upright, at a curtain reinforcing bar, illustrating how it is arranged in the slide.
  • the reinforcing bars are produced with a flexibility such that, under a pushing force, they leave the guide groove before undergoing a permanent deformation or subjecting the guide groove to permanent deformation.
  • This can be achieved by the overall flexibility of the bar. It can be produced by a plastic tube reinforced with green fiber, and withstand a significant non-permanent deformation, which causes one or both of its ends to exit the guide groove, without permanent deformation or rupture.
  • the flexibility can be limited to a part of the bar, for example in the middle, or at the ends.
  • the middle of the bar can be constituted by a more flexible part, for example an elastic sleeve or a coil spring, allowing the bar to be folded.
  • the bar 5 can also be provided with end pieces 6 made of flexible material, for example rubber, fitted into the two ends of the bar, which can be a metal tube or any other material.
  • This end piece can be semi-rigid to resist normal thrusts (wind) or slightly higher, and include a thinned zone 6a allowing flexion in the case of sudden or very strong thrust.
  • FIG. 3 shows in section another embodiment of the ends of the bars.
  • the horizontal reinforcing bar 10 consists of a tube 12, in the end of which is locked a mandrel 13, on which is engaged a spring 14.
  • the dimensions of the mandrel and of the spring are chosen so that the parts can hold together without other than a press fit. It is indeed preferable, but obviously not essential to avoid the operations of riveting, welding, etc.
  • the spring could be engaged in the tube 12.
  • an end piece 15 is fixed on the end spring. For questions of wear of materials, reduction of operating noise, it is preferable that it is not the spring which rubs directly in the slide 21.
  • the slides 21 stop a little below the volume d accumulation of the curtain, be it a winding, as shown in section in the figure, and have a flared end 21a, so that by letting the curtain come down, the ends of the bars naturally engage in the slide 21.
  • the space between the flaring 21a and the reinsertion ramp 7 forms a reinsertion window. Several may be provided along the height of the curtain.
  • the slide 21 is defined essentially by two parallel flat walls 22, 23 on either side of the plane of the curtain, which delimit an interstitial space in which the ends of the horizontal reinforcement bars of the curtain door move, these ends being guided by the walls 22, 23.
  • the bottom of the slide can be blocked by a wall 24, improving the rigidity and protecting the interior from dust and the like foreign bodies.
  • the slides are externally lined with oblique faces 25, 26 (protective walls) which facilitate the re-entry into the slides of the ends of the bars which have come out.
  • the slide generally comprises other side walls 27, 28 and a bottom 29 to form a rigid assembly.
  • the slide 21 has no interruption.
  • the end of the bar rubs on the surface 25 or the surface 27 of the profile which surrounds the slide. Arrived at the level of the ramp 35, the end of the bar is engaged on the latter, by the traction due to the raising of the curtain, on the one hand, and by the effect of the inclined guide 33 on the other hand. The end of the bar goes up the ramp 35, which forces the bar to shorten.
  • the ends of the bars can be telescopic, as on the bar 20 represented in FIG. 9.
  • a sleeve 47 is mounted on the end of the tube 12, either by force fitting, or by means of a pin 18 which serves at the same time to fix the inner end of the spring 19, which biases outwards a piston 41 whose role is equivalent to that of the tip 15 of the bar of Figure 3.
  • the end of the bar 10 may not be flexible. To allow the bar to come out of the slides under the effect of an abnormal force, this bar must have overall flexibility or include a zone, central for example, particularly flexible.
  • the guide ramp has been shown slightly hollow relative to the plane of the surface 25. This is in no way necessary.
  • the ramp can be formed only by the projecting rim 33A of the reinsertion guide.
  • the guide can be fixed or movable or removable.
  • the surface 25 can also be parallel to the bottom 29 of the slide.
  • the ramp 35 can sink so as to temporarily open a window in the wall 23 of the slide.
  • the ramp may for example be articulated around the lower edge 36, and a section 38 of the wall 23 may sink in the direction of arrow 37.
  • FIG. 6 which is a sectional view along line VI-VI of the figure 5, there is shown at 35 the normal position of the ramp, and at 35 'the depressed position.
  • the amplitude of the depression of the slide can be defined according to the nature of the bars and their ability to bend or be able to shorten. In practice, this local mobility can be obtained by a cutout made in the wall of the upright.
  • the reinsertion window 32 in order to prevent the bars from coming out of the slide during the descent of the curtain, can be closed by a flap 40 , deformable or articulated (left part of FIG. 7) which, in the rest position is urged to remain in a plane parallel to the curtain and which may come to occupy position 40 ′ by deforming towards the inside of the slide under the thrust a piece of bar, pulled by the curtain during the ascent.
  • the pan 40 returns to its position in the plane of the wall 22 of the slide and the curtain can descend without risking leaving the slide.
  • the pan 40 can be a flexible metal blade fixed at one end by rivets. It can, if necessary, be formed by a simple cut in the wall of the slide, depending on the elastic nature of the material of the slide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Processing Of Meat And Fish (AREA)
  • Body Structure For Vehicles (AREA)
  • Special Wing (AREA)
  • Wing Frames And Configurations (AREA)

Claims (9)

  1. Industrietor mit anhebbarem Rolladen (4), das zwei seitliche vertikale Pfosten (1, 2) umfaßt, von denen jeder eine Gleitschiene (21) aufweist, wobei jede Gleitschiene auf beiden Seiten der Ebene des Rolladens eine Führungswand besitzt, wobei sich der Rolladen im oberen Bereich durch Aufrollen oder Zusammenfalten ansammeln kann und vertikale Ränder (6a) besitzt, die in den Gleitschienen gleiten und so ausgebildet sind, daß sie aus den Gleitschienen heraustreten, wenn eine anormale quer gerichtete Kraft ausgeübt wird, wobei die Wand einer jeden Gleitschiene eine Öffnung aufweist, die es einem Rand des Rolladens ermöglicht, von außen her in das Innere der Gleitschiene einzutreten, dadurch gekennzeichnet, daß wenigstens eine der Außenwände der Pfosten mit einer Führung (33) versehen ist, die über besagte Wand oberhalb besagter Öffnung vorspringt und im wesentlichen nach oben und zur Öffnung der Gleitschiene hin orientiert ist, wobei diese Führung sich wenigstens über einen Teil der Weite der besagten Wand bis zum Rand der Öffnung der Gleitschiene in der Weise erstreckt, daß sie vermittels der Öffnung einen Rand (6a) des nach oben gezogenen Rolladens bis in die Gleitschiene zurückbringt, wenn er aus dieser ausgetreten ist.
  2. Industrietor nach Anspruch 1, dadurch gekennzeichnet, daß die Wand der Gleitschiene oder die Wand des Pfostens, der die Gleitschiene umfaßt, in Bezug auf wenigstens eine dieser Öffnungen wenigstens ein bewegliches Wandelement (35, 40) umfaßt, das sich elastisch in der Weise verformen kann, daß es besagte Öffnung abdeckt oder freigibt, um es dem Rand des Rolladens zu ermöglichen, von außen in das Innere der Gleitschiene einzutreten, aber nicht in umgekehrter Richtung auszutreten.
  3. Tor nach Anspruch 2, dadurch gekennzeichnet, daß im übrigen dieses bewegliche Wandelement ein Flächenelement (40) der einen Wand der Gleitschiene ist, das zur Ebene des Rolladens parallel und um seinen unteren Rand beweglich ist und sich zum Inneren der Gleitschiene zwischen die beiden Wände verschiebt, die den senkrechten Gleitkanal für die Ränder des Rolladens begrenzen.
  4. Tor nach Anspruch 2, dadurch gekennzeichnet, daß im übrigen das bewegliche Wandelement ein Flächenelement einer Außenwand (35) eines Pfostens ist, der die Gleitschiene enthält, und sich in einer bezüglich der Ebene des Rolladens schräg verlaufenden Ebene befindet, wobei das Flächenelement (35) um seinen äußersten Rand beweglich ist und sich zum Boden der Gleitschiene hin verschiebt ohne mit dieser in Wechselwirkung zu treten, um einen Zugangskanal mit einer Öffnung in der Gleitschiene zu bilden.
  5. Tor nach Anspruch 1, dadurch gekennzeichnet, daß im übrigen die Führung (33) sich von einem naheliegenden Ende des Rolladens (4) bis zu einem entfernt liegenden Ende des Rolladens erstreckt und über die Seitenwand (27) des Pfostens hinaus vorspringt.
  6. Tor nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnung eine Wiedereinführ-Rampe (35) bildet, die bezüglich der Ebene des Rolladens schräg verläuft und im wesentlichen nach oben und zur Gleitschiene hin orientiert ist, wobei die Wiedereinführ-Rampe (35) sich an das Innere des Tors annähert, indem sie sich an die Gleitschiene in der Weise annähert, daß sie einen seitlichen Teil (6a) des nach oben gezogenen Rolladens in die Gleitschiene (21) zurückführt, wenn dieser Teil aus ihr ausgetreten ist, indem sie diesen Teil zur Innenseite des Tors durch Abbiegen oder Zusammenziehen verformt.
  7. Tor nach Anspruch 6, dadurch gekennzeichnet, daß weiterhin die Rampe (35) zum Wiedereinführen mit einer Führung (33) versehen ist, die über die Außenwand des Pfostens oberhalb der Rampe (35) zum Wiedereinführen vorspringt, wobei sich diese Führung über wenigstens einen Teil der Weite dieser Wand bis zum Rand der Gleitschiene in der Weise erstreckt, daß in dieser Rampe (35) zum Wiedereinführen ein seitlicher Teil (6a) des Rolladens für sein Wiedereinführen in die Gleitschiene gehalten wird.
  8. Tor nach Anspruch 7, dadurch gekennzeichnet, daß weiterhin die Führung (33) sich ausgehend von einem nahe liegenden Ende des Rolladens (4) bis zu einem entfernt liegenden Ende des Rolladens erstreckt und über die Seitenwand (27) des Pfostens vorspringt.
  9. Tor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß weiterhin die Gleitschiene (21) höhenmäßig auf ein Niveau begrenzt ist, das sich unterhalb des Fußes des Rolladens befindet, wenn der Rolladen angehoben ist, und eine Öffnung (21a) aufweist, die sich nach oben in der Weise erweitert, daß dann, wenn sich der Rolladen aus seiner angehobenen Position absenkt, die Ränder des Rolladens in den erweiterten Teil der Gleitschiene eingreifen.
EP91203021A 1989-05-19 1990-05-11 Flexible aufrollbare Tür Expired - Lifetime EP0476788B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR8906592 1989-05-19
FR8906592A FR2647151A1 (fr) 1989-05-19 1989-05-19 Porte comportant un rideau relevable a armature non deformable
FR9000001A FR2656648A2 (fr) 1989-05-19 1990-01-02 Porte a rideau relevable renforcee par des bares d'armature horizontales.
FR9000001 1990-01-02
EP90401264A EP0398791B1 (de) 1989-05-19 1990-05-11 Tür mit aufrollbarem, mit horizontalen Stäben versteiftem Vorhang

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP90401264.8 Division 1990-05-11

Publications (3)

Publication Number Publication Date
EP0476788A2 EP0476788A2 (de) 1992-03-25
EP0476788A3 EP0476788A3 (en) 1993-02-24
EP0476788B1 true EP0476788B1 (de) 1997-04-02

Family

ID=26227336

Family Applications (2)

Application Number Title Priority Date Filing Date
EP91203021A Expired - Lifetime EP0476788B1 (de) 1989-05-19 1990-05-11 Flexible aufrollbare Tür
EP90401264A Expired - Lifetime EP0398791B1 (de) 1989-05-19 1990-05-11 Tür mit aufrollbarem, mit horizontalen Stäben versteiftem Vorhang

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP90401264A Expired - Lifetime EP0398791B1 (de) 1989-05-19 1990-05-11 Tür mit aufrollbarem, mit horizontalen Stäben versteiftem Vorhang

Country Status (8)

Country Link
EP (2) EP0476788B1 (de)
JP (1) JP2884103B2 (de)
AT (2) ATE151150T1 (de)
CA (1) CA2017145C (de)
DE (2) DE69003868T2 (de)
DK (1) DK0398791T3 (de)
ES (2) ES2102384T3 (de)
FR (1) FR2656648A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033412A1 (de) 2007-07-18 2009-01-22 Itw Industrietore Gmbh Rolltor

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FR2674566A1 (fr) * 1991-03-26 1992-10-02 Nergeco Sa Porte de manutention a pose rapide.
BE1004897A3 (fr) * 1991-05-24 1993-02-16 Coenraets Benoit Dispositif de fermeture, de separation ou de couverture.
WO1995035427A1 (en) * 1991-08-12 1995-12-28 Allen Thomas H Apparatus for sealing off an opening
DE4313063C2 (de) * 1993-04-21 1996-02-22 Efaflex Transport Lager Rolltor mit flexiblem Behang
FR2709781B1 (fr) * 1993-09-09 1995-10-20 Nergeco Sa Porte de manutention à rideau relevable.
FR2728011B1 (fr) * 1994-12-12 1997-01-24 Mavil Perfectionnements aux tabliers de porte de manutention
GB9522851D0 (en) * 1995-11-08 1996-01-10 Shaw Stanley R Industrial/commercial door
US5659926A (en) * 1995-12-15 1997-08-26 Dietrich; Timothy R. Trailer door roller reinsertion bracket
FR2762354B1 (fr) * 1997-04-16 1999-05-21 Nergeco Sa Dispositif de securite pour porte a panneau coulissant
FR2762642B1 (fr) * 1997-04-23 1999-07-30 Bernard Simon Dispositif de guidage d'une porte a rideau souple
FR2780088B1 (fr) * 1998-06-23 2000-10-20 Nergeco Sa Console de liaison multifonctionnelle pour porte de manutention
BE1014506A3 (fr) * 2001-12-03 2003-11-04 Dynaco Internat Dispositif a volet avec element de reintroduction.
DE20305922U1 (de) 2003-03-20 2003-06-12 Adolf Seuster GmbH & Co. KG, 58513 Lüdenscheid Rolltor
CN1580479B (zh) 2003-08-12 2010-06-23 三和控股株式会社 薄板卷帘门装置
DE10349716B4 (de) * 2003-10-23 2006-01-19 Weber, Joachim Hubtor
JP4362848B2 (ja) * 2004-06-29 2009-11-11 三和シヤッター工業株式会社 電動式シートシャッター装置
FR2880059A1 (fr) * 2004-12-23 2006-06-30 Maviflex Sa Sa Porte de manutention et son dispositif de guidage charge elastiquement
JP2006225936A (ja) * 2005-02-16 2006-08-31 Komatsu Denki Sangyo Kk シートシャッター
JP4722520B2 (ja) * 2005-03-25 2011-07-13 三和シヤッター工業株式会社 シートシャッター装置
JP4673672B2 (ja) * 2005-06-03 2011-04-20 トステム株式会社 手動式シャッター装置
US8371357B2 (en) * 2006-02-06 2013-02-12 Assa Abloy Entrance Systems Ab System to guide the slats of an industrial roller door to reduce damages after crash
US7913711B2 (en) 2008-07-28 2011-03-29 Shelterlogic Llc Door assembly for use in a shelter and a shelter including same
IT1401013B1 (it) * 2009-05-14 2013-07-05 Tecnoindustriale Srl Sistema antidanneggiamento e rispristino funzionamento a seguito di impatto accidentale sulla superficie telonata di porte avvolgibili.
FR2973432A1 (fr) * 2011-03-30 2012-10-05 Sofineco Dispositif de maintien a deformation elastique d'un rideau souple d'une porte de manutention a ouverture verticale
US9556672B2 (en) 2014-10-28 2017-01-31 Rite-Hite Holding Corporation Rolling windbars for roll-up doors
WO2016131476A1 (de) * 2015-02-17 2016-08-25 Frinova Gmbh Magnetabdichtung für schnelllauftore
KR101630296B1 (ko) * 2016-03-30 2016-06-14 (주)유나 산성가스 처리장치

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GB1597396A (en) * 1978-04-04 1981-09-09 Utec Ab Closure for an opening in a vertical surface
FI810010L (fi) * 1980-01-15 1981-07-16 Glenn Robert Palmer Doerrkonstruktion
GB8624735D0 (en) * 1986-10-15 1986-11-19 Clark Door Ltd Roller door assemblies
BE906022A (fr) * 1986-12-23 1987-04-16 Coenraets B J Dispositif a volet.
FR2624190B1 (fr) * 1987-12-02 1990-05-11 Nergeco Sa Barre d'armature et de guidage pour un rideau souple de porte a relevage vertical

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033412A1 (de) 2007-07-18 2009-01-22 Itw Industrietore Gmbh Rolltor

Also Published As

Publication number Publication date
DE69003868D1 (de) 1993-11-18
EP0476788A2 (de) 1992-03-25
DK0398791T3 (da) 1994-02-14
ES2102384T3 (es) 1997-08-01
ATE95885T1 (de) 1993-10-15
EP0398791B1 (de) 1993-10-13
CA2017145A1 (en) 1990-11-19
DE69003868T2 (de) 1994-04-28
EP0398791A1 (de) 1990-11-22
EP0476788A3 (en) 1993-02-24
JPH0381490A (ja) 1991-04-05
FR2656648A2 (fr) 1991-07-05
DE69030379T2 (de) 1997-11-06
ATE151150T1 (de) 1997-04-15
ES2047281T3 (es) 1994-02-16
DE69030379D1 (de) 1997-05-07
JP2884103B2 (ja) 1999-04-19
CA2017145C (en) 2000-01-18

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