EP0659918B1 - Liefervorrichtung für laufende Fäden - Google Patents

Liefervorrichtung für laufende Fäden Download PDF

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Publication number
EP0659918B1
EP0659918B1 EP94116058A EP94116058A EP0659918B1 EP 0659918 B1 EP0659918 B1 EP 0659918B1 EP 94116058 A EP94116058 A EP 94116058A EP 94116058 A EP94116058 A EP 94116058A EP 0659918 B1 EP0659918 B1 EP 0659918B1
Authority
EP
European Patent Office
Prior art keywords
thread
yarn
suction
storage drum
yam
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
EP94116058A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0659918A2 (de
EP0659918A3 (de
Inventor
Adriano Deiuri
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.)
Iropa AG
Original Assignee
Iropa 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6401592&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0659918(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Iropa AG filed Critical Iropa AG
Publication of EP0659918A2 publication Critical patent/EP0659918A2/de
Publication of EP0659918A3 publication Critical patent/EP0659918A3/de
Application granted granted Critical
Publication of EP0659918B1 publication Critical patent/EP0659918B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/364—Yarn braking means acting on the drum
    • D03D47/366—Conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a delivery device for ongoing Threads, in particular for use on textile machines, according to the preamble of claim 1.
  • a delivery device of the type in question is known from DE-OS 37 34 284, which by compressed air thread end conveyed through the thread guide tube after leaving the thread guide tube in the area the storage drum from an approximately parallel to the drum axis aligned blowing nozzle into a radial slot Guide channel is steered.
  • This takes hold e.g. pneumatically adjustable brake ring in the area of the root of the bristles and forms one beyond the brake ring in the direction of Drum axis curved channel section.
  • these opens another blow air nozzle such that their Beam runs radially to the drum axis and the thread in a channel-like, approximately triangular cutout of the head cone steers. Through this the thread end in directed the area of a suction blow nozzle.
  • this configuration is the complex structure of the thread delivery device, due to the at the deflection points required blowing air nozzles and additional channels.
  • the brake ring adjusted by pivoting the boom of the delivery device about a pivot axis to to move away from the drum surface. This adjustment is made by a Pneumatic cylinder.
  • the Brake ring adjusted away from the drum surface, then the delivery device from remaining thread material is cleaned, only then is a new thread in the delivery device inserted, and only then is the brake ring returned to its working position.
  • the object underlying the invention now exists therein a delivery device of the aforementioned type in to design in a technically simple manner that with a minimum of components and nozzles enables automatic, reliable threading of the thread is.
  • one of the generic types Delivery device simplifies threading the thread.
  • the brake ring is used to form the gap Controlled in parallel to the supply of the suction blow nozzles.
  • the brake ring is parallel to Drum axis shifted so that in the operating position bristles resting on the drum surface in step a gap to the drum surface.
  • By the thread can then pass this gap into the area of designed as Suagblasdüse thread take-off eyelet.
  • a preferred embodiment of the invention provides that the brake ring is switched off by means of an air cylinder and is reset by spring force. The control of the air cylinder can be done in parallel for supplying compressed air to the suction blowing nozzles.
  • the invention draws by reliably threading the thread Compressed air.
  • a training according to which is directed radially inwards towards the thread take-off eye Redirection of the in a plane vertically above the Thread take-off eyelet free-flying thread end exclusively by means of a lying on the lateral surface of the head cone Suction air flow is achieved, the number of with Compressed air working nozzles reduced to a minimum.
  • the thread blown through the thread guide tube enters now in one plane vertically above the thread take-off eye from such that the thread end approximately parallel to the drum surface runs, then along the lateral surface of the head cone detected by means of the suction air flow and further promoted by pushing through the thread take-off eyelet becomes. This is done using the thread end acting gravity, which is supportive affects the threading process. The thread end is therefore always grasped with certainty and in the thread take-off loop sucked. Additional deflection nozzles to provide a corresponding one Obtaining the thread direction course can accordingly associated with reduced manufacturing costs for the delivery device. Channeling too the head cone is not required, so this its smooth surface, which favors thread withdrawal can maintain. Otherwise, it leaves the invention Design to, with usual, available Compressed air values to work.
  • the brake ring To thread the To allow thread, the brake ring must be in axial Towards the storage drum such that its bristles a gap to the drum surface leave so that the thread end under the bristles here can take its intended path.
  • the brake ring For the purpose of Achieving a favorable position of the brake ring in its working and disengaging position is the brake ring adjustable on a sliding carriage. Independently of the displacement stroke of the brake ring can therefore always the individual setting. That in the axial direction the thread guide tube bent off the steering directs this Always end the thread so that it is in the previously left gap is directed. The thread end therefore arrives as intended always to the thread take-off eyelet.
  • the takeover can and deflection of the thread in the axial direction extending deflection channel take place in which the Mouth end of the thread guide tube set in is.
  • the suction blow nozzle is therefore always Thread end up to the suction area of the axial suction blow nozzle designed thread take-off eyelet.
  • This Both suction blow nozzles work on the Venturi principle.
  • the suction blow nozzles are designed so that your An annular chamber is arranged upstream of the annular gap. The one for education the same ring gap wall is with a wreath provided by air passage holes.
  • the Adjusting the bristles is easy by means of an adjusting screw accessible from the head end make. Changed by twisting them the sliding carriage carrying the brake ring is its Position to the storage drum. This set screw penetrates an opening of the baffle and can from there be operated. The lateral surface area behind the baffle the head cone runs underneath Achievement of a favorable thread steering in a straight line Extension from the base edge to the tip of the cone. This in turn ends in front of the suction blowing nozzle there. It should also be emphasized that the air supply to both Suction blow nozzles is about the same, so that with the same pressure and the same line cross-sections can be worked can, which also simplifies the structure of the Delivery device contributes.
  • the delivery device according to the first embodiment, 1-6 has one, for example to be attached to a support of a weaving machine Housing 1.
  • This takes in a housing cavity 2 a stator 3, in which a rotor 4 rotates.
  • the latter is penetrated by a rotor shaft 5 thread threading end sits in a roller bearing 6, the one in the housing cavity 2 closing Cover 7 is inserted.
  • the threading end turned collar 8 of the rotor shaft 5 is inclined directed thread guide tube 9, the mouth end 10 arranged in the axial direction of a coaxial to the rotor shaft 5
  • Storage drum 11 is bent.
  • a thread run-up truncated cone surface 12 At the level of The end of the mouth 10 forms the storage drum 11 a thread run-up truncated cone surface 12, so that when circulating the Thread guide tube 9, the rear thread turns the front ones already on the storage drum Thread turns to the head end of the storage drum 11 push forward.
  • the storage drum itself is rotatable arranged. However, so that they are not together with the Thread guide tube 9 rotates, it is not with one illustrated truncated cone 13 firmly connected. Its magnets are opposite to fixed magnets 14 of a housing side Ring 15
  • the storage drum bears on its free-flying front end 11 a head cone 16. Its base lies on the Face of the storage drum and is slightly smaller than the diameter of the storage drum 11.
  • the lateral surface area M of the head cone 16 goes from the base edge B out and extends in a straight line to to cone tip 17. The same extends to Inlet opening 18 of a thread take-off eye 19.
  • A serves as a carrier for the aforementioned thread take-off eye 19 Baffle 20, which runs vertically and at its top End of a U-shaped cross section on the housing 1 attached boom 21 is held.
  • the one about the Storage drum 11 extending arm 21 is located such a parallel distance to the storage drum 11 that he is the orbital movement of the thread guide tube 9 not affected.
  • the boom 21 takes a compressed air cylinder 22 on. Its piston rod 23 engages one longitudinally displaceable in the interior of the boom 21 guided sliding carriage 24. Relative to this is a carrier 25 for a concentric to the storage drum axis extending brake ring 26 out.
  • the Sliding carriage 24 supports a set screw 27 for the actuating end 28 of the baffle 20 an opening 29 trains. By turning the operating handle 28 is accompanied by a longitudinal displacement of the carrier 25, depending on the direction in which the Brake ring 26 is to be adjusted.
  • the brake ring 26 is directed inward of the drum Bristles 30 provided such that they correspond to the Shell surface of the head cone 16 are aligned. In the Working position, the bristle ends are on the head cone 16 of the storage drum 11.
  • the thread guide tube 9 sits in the rotor shaft centrally penetrating thread channel 31, which expands at the threading end.
  • a suction blow nozzle 32 is provided in the housing cover 7.
  • a spacer sleeve 33 In a central opening of the housing cover 7 is located a spacer sleeve 33, in which the nozzle housing 34 is firmly inserted.
  • the nozzle housing 34 assumes its end facing the rotor shaft 5 has a sealing collar 35 up to the free end of the rotor shaft 5 is enough. Accordingly, the thread channel 31 closes immediately to the outlet opening 36 of the sealing collar 35 on.
  • the outlet opening 36 is in turn connected with a short flow channel 37 of the nozzle body 34, which channel 37 following it a frusto-conical channel 38 extended to thereafter to merge into a circular cylindrical channel section 39.
  • a nozzle body 40 is pressed into this. center it forms a thread passage channel 41, which in Diameter is smaller than that of the flow channel 37 in the nozzle body 34.
  • the Flow channel 37 facing length is the nozzle body 40 equipped with a truncated cone section 42, the Cone angle is less than that of the frustoconical Channel 38.
  • the smallest diameter of the Truncated cone section 42 is smaller than that of the Flow channel 37, so that an annular gap 43 remains.
  • the nozzle body 40 On its circular-cylindrical remaining length the nozzle body 40 forms an annular chamber 44, in whose annular gap-side wall 45 is a ring of air passage holes 46 is provided. In the annular chamber 44 opens a compressed air supply line 47. The nozzle body 40 is then also arranged a threading eyelet 48, which in turn is firmly embedded in the nozzle housing 44.
  • the thread take-off eye 19 is also a suction blowing nozzle designed. It has one inserted into the baffle 20 Nozzle housing 49 with a nozzle body 50, which in its structure corresponds to that of the suction blow nozzle 32.
  • the feed lines 47, 51 of both suction blow nozzles 19, 32 assigned a common valve 52. The latter stands via a compressed air line 53 in connection with a Compressed air source 54.
  • a feed line goes from valve 52 55 to a distributor 56, which with both Leads 47, 51 as well as with the lead 57 in Connection is established, which leads to the compressed air cylinder 22.
  • the valve 52 can be controlled by means of a handle 58.
  • the aforementioned handle 58 is advantageously located on a box 59 connected to the housing 1, in which the valve 52 as well as the manifold 56 and the corresponding connections are housed.
  • the baffle 20 accommodating the suction blowing nozzle 19 corresponds in width about a third of the diameter the storage drum 11.
  • the radially inward on the thread take-off eye 19 directed redirection then takes place by means of the Lateral surface of the head cone 16 lying suction air flow, which deflection is supported by gravity of the thread end.
  • the baffle 20 provides one Limit the trajectory so that the thread end is not goes beyond the baffle, but with certainty arrives at the extraction eyelet 19 designed as a suction blowing nozzle and from there also according to the Venturi principle this exits.
  • the handle 58 can return to its initial position interrupting the compressed air supply.
  • One in Air cylinder 22 housed, not illustrated The spring then puts the brake ring 26 back in his starting position back.
  • the Threading is also carried out with the handle pressed 58 made.
  • the thread is now deflected in the transition area between the mouth end 61 and the suction blowing nozzle 19 through the deflection channel 62, so that at this version additional deflection nozzles can be omitted. This has a relieving effect during the threading process funnel-shaped extension 64 of the deflection channel on the inlet side 62 out.
  • the threading of the Fadens always in the position in which the muzzle ends 51 of the thread guide tube 9 in one plane located vertically above the thread take-off eye. Then can both gravity and the corresponding in the same surface of the surface of the head cone be used for thread guidance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Treatment Of Fiber Materials (AREA)
EP94116058A 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden Expired - Lifetime EP0659918B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4007131 1990-03-07
DE4007131A DE4007131C2 (de) 1990-03-07 1990-03-07 Liefervorrichtung für laufende Fäden
EP90123730A EP0446447B2 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP90123730.5 Division 1990-12-10
EP90123730A Division EP0446447B2 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden

Publications (3)

Publication Number Publication Date
EP0659918A2 EP0659918A2 (de) 1995-06-28
EP0659918A3 EP0659918A3 (de) 1997-11-19
EP0659918B1 true EP0659918B1 (de) 2003-10-29

Family

ID=6401592

Family Applications (3)

Application Number Title Priority Date Filing Date
EP90123730A Expired - Lifetime EP0446447B2 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden
EP94119612A Withdrawn EP0657379A2 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden
EP94116058A Expired - Lifetime EP0659918B1 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP90123730A Expired - Lifetime EP0446447B2 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden
EP94119612A Withdrawn EP0657379A2 (de) 1990-03-07 1990-12-10 Liefervorrichtung für laufende Fäden

Country Status (9)

Country Link
US (1) US5181544A (cs)
EP (3) EP0446447B2 (cs)
JP (1) JP3021712B2 (cs)
CN (1) CN1026424C (cs)
AT (2) ATE124732T1 (cs)
BR (1) BR9100911A (cs)
CZ (1) CZ281399B6 (cs)
DE (3) DE4007131C2 (cs)
ES (1) ES2074112T3 (cs)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9117045U1 (de) * 1991-06-18 1995-05-11 Iro Ab, Ulricehamn Fadenspeicher- und -liefervorrichtung
IT226136Y1 (it) * 1991-09-19 1997-04-18 Roy Electrotex Spa Miglioramenti costruttivi per porgitrama per telai di tessitura.
IT1259551B (it) * 1992-04-22 1996-03-20 Lgl Electronics Spa Dispositivo elettropneumatico per l'infilaggio automatico di apparecchi alimentatori di trama a macchine tessili ed apparecchio alimentatore di trama incorporante detto dispositivo
IT1258241B (it) * 1992-11-05 1996-02-22 Alimentatore di trama
IT1263623B (it) * 1993-02-23 1996-08-27 Roj Electrotex Nuova Srl Alimentatore di filo
SE508469C2 (sv) * 1993-04-21 1998-10-12 Sipra Patent Beteiligung Garnmataranordning i en textilmaskin samt förfarande för användning av garnmataranordning
DE9307967U1 (de) * 1993-05-26 1994-10-06 Palitex Project-Company GmbH, 47804 Krefeld Doppeldraht-Zwirnspindel
TW286331B (cs) * 1994-03-03 1996-09-21 Micron Instr
DE9406102U1 (de) * 1994-04-13 1995-08-10 Sobrevin Société de brevets industriels-Etablissement, Vaduz Fadenspeicher mit Fadenabzugsbremse
US5546994A (en) * 1994-10-14 1996-08-20 Sobrevin Societe De Brevets Industriels-Etablissement Thread storage drum with frustoconical brake strip
IT1280434B1 (it) * 1995-07-18 1998-01-20 Lgl Electronics Spa Dispositivo elettropneumatico perfezionato per l'infilaggio automatico di apparecchi alimentatori di trama ed alimentatore di
DE19533310A1 (de) * 1995-07-24 1997-01-30 Iro Ab Fadenliefergerät
RU2129089C1 (ru) * 1995-07-24 1999-04-20 Иро Аб Устройство для подачи нити
DE19533547A1 (de) * 1995-09-11 1997-03-13 Iro Ab Pneumatische Ventileinrichtung für ein Fadenliefergerät und Fadenliefergerät
DE19609871A1 (de) * 1996-03-13 1997-09-18 Iro Ab Fadenliefergerät
IT239803Y1 (it) * 1996-09-03 2001-03-13 Lgl Electronics Spa Dispositivo di ritegno a sgancio rapido del supporto portafreno diapparecchi alimentatori di trama per macchine tessili
IT1302068B1 (it) * 1998-02-26 2000-07-20 Lgl Electronics Spa Metodo e dispositivo di infilaggio pneumatico di apparecchialimentatori di trama a macchine tessili.
DE10107688A1 (de) * 2001-02-19 2002-08-29 Iro Patent Ag Baar Fadenliefergerät
ITTO20020023U1 (it) * 2002-02-01 2003-08-01 Lgl Electronics Spa ,,dispositivo di ritegno del supporto portafreno in dispositivi alimentatori di trama,,
DE10358283A1 (de) * 2003-12-12 2005-07-21 Iro Ab Fadenmessliefergerät
SE0400861D0 (sv) * 2004-04-01 2004-04-01 Iropa Ag Garnmatningsanordning
CN102634913A (zh) * 2012-04-06 2012-08-15 经纬纺织机械股份有限公司 无捻度变化储纬装置
IT201800007866A1 (it) * 2018-08-06 2020-02-06 Lgl Electronics Spa Dispositivo frena-trama per alimentatori di filato ad accumulo
CZ2019389A3 (cs) * 2019-06-19 2020-12-30 Rieter Cz S.R.O. Zařízení pro nasávání a dopravu příze pro uspořádání na obslužném robotu textilního stroje pro výrobu příze, obslužný robot pro obsluhu pracovního místa textilního stroje a textilní stroj
CN112553764A (zh) * 2020-12-01 2021-03-26 张家港市凯利雅特种纺织纱线有限公司 氨纶纱输纱装置
CN112609299B (zh) * 2020-12-10 2022-08-19 青岛村田机械制造有限公司 一种在操作时避免储纬器处断纬或漏纬的纺织储纬装置
CN114000246B (zh) * 2021-11-30 2022-11-29 嵊州市三凌动力科技有限公司 储纬器用三角压片及其制造方法
CN119160714B (zh) * 2024-11-22 2025-03-18 山东明福染业有限公司 一种用于植物染色的纱线收集装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE759801A (fr) * 1969-12-04 1971-05-17 Snia Viscosa Perfectionnements apportes aux dispositifs pour ramasser, aspirer et eliminer des filaments et fils textiles, ainsi que les dispositifs perfectionnes obtenus
IT1133900B (it) * 1980-10-15 1986-07-24 Roy Electrotex Spa Mezzi per effettuare la frenatura del filato in uscita in dispositivi alimentatori di filato a tensione costante e regolabile,particolarmente per macchine tessili
DE8712946U1 (de) * 1987-09-25 1987-12-10 Aktiebolaget Iro, Ulricehamn Fadenspeicher- und -liefervorrichtung
US4969489A (en) * 1988-07-14 1990-11-13 Nissan Motor Co., Ltd. Weft threading system for fluid jet loom using the storage drum winding arm
US5016680A (en) * 1989-03-03 1991-05-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Weft processing and releasing apparatus in a jet loom
IT1236993B (it) * 1989-12-29 1993-05-12 Roy Electrotex Spa Alimentatore di trama per telai di tessitura a pinze e a proiettili
FR2978758B1 (fr) 2011-08-02 2013-08-02 Saint Gobain Enceinte de flottage du verre

Also Published As

Publication number Publication date
EP0659918A2 (de) 1995-06-28
CS9100584A2 (en) 1991-09-15
DE59009377D1 (de) 1995-08-10
ATE124732T1 (de) 1995-07-15
US5181544A (en) 1993-01-26
DE4007131A1 (de) 1991-09-12
DE4007131C2 (de) 1999-12-30
JP3021712B2 (ja) 2000-03-15
EP0446447B1 (de) 1995-07-05
CZ281399B6 (cs) 1996-09-11
CN1026424C (zh) 1994-11-02
EP0446447B2 (de) 2000-11-22
JPH04213561A (ja) 1992-08-04
EP0446447A1 (de) 1991-09-18
ATE253134T1 (de) 2003-11-15
DE59010936D1 (de) 2003-12-04
BR9100911A (pt) 1991-11-05
EP0659918A3 (de) 1997-11-19
ES2074112T3 (es) 1995-09-01
CN1054624A (zh) 1991-09-18
EP0657379A2 (de) 1995-06-14

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