EP0768258A2 - Machine de bobinage à fonctionnement discontinu pour enrouler du matériau à bobiner - Google Patents

Machine de bobinage à fonctionnement discontinu pour enrouler du matériau à bobiner Download PDF

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Publication number
EP0768258A2
EP0768258A2 EP96116022A EP96116022A EP0768258A2 EP 0768258 A2 EP0768258 A2 EP 0768258A2 EP 96116022 A EP96116022 A EP 96116022A EP 96116022 A EP96116022 A EP 96116022A EP 0768258 A2 EP0768258 A2 EP 0768258A2
Authority
EP
European Patent Office
Prior art keywords
winding
spindle
machine according
brake
winding machine
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
EP96116022A
Other languages
German (de)
English (en)
Other versions
EP0768258A3 (fr
EP0768258B1 (fr
Inventor
Helmut Rabe
Ernst Döring
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.)
Georg Sahm GmbH and Co KG
Original Assignee
Georg Sahm GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Sahm GmbH and Co KG filed Critical Georg Sahm GmbH and Co KG
Publication of EP0768258A2 publication Critical patent/EP0768258A2/fr
Publication of EP0768258A3 publication Critical patent/EP0768258A3/fr
Application granted granted Critical
Publication of EP0768258B1 publication Critical patent/EP0768258B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2215—Turret-type with two roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B65H2408/2315—Turret winders specified by number of arms
    • B65H2408/23152—Turret winders specified by number of arms with two arms
    • 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
    • B65H2701/37—Tapes
    • B65H2701/377—Adhesive tape

Definitions

  • the invention relates to a discontinuously acting winding machine for winding up winding material, in particular adhesive tape, with a drivable winding spindle and an upstream laying device.
  • a discontinuously operating winding machine is understood to mean one in which the material to be fed to the winding machine is stopped or is stored in a memory which is connected upstream of the winding machine for the time of the spool change. This means that immediately before the winding machine, the material to be wound up runs in one operating phase of the winding machine, but in another operating phase it stands still. It is understood that this other phase of operation is used to change the bobbin.
  • the winding machine is used to wind up items to be wound, in particular adhesive tapes, tear tapes u. Like., It is usually important to exactly and reproducibly adhere to the length to be wound on a spool.
  • a discontinuous winder of the type described at the outset for the intended use has a drivable winding spindle which is driven in one operating phase and stands still in the other operating phase.
  • an empty sleeve is manually pushed onto the winding spindle and clamped.
  • the winding material is placed manually on the core and the operating phase of winding or winding begins.
  • this winding trip can take up to half an hour, for example.
  • a large number of winding machines are combined on one winding system, so that the winding process is carried out simultaneously on all winding machines.
  • the system and thus the individual winding machines, on the one hand, and the delivery of the winding material are stopped.
  • the material to be wound is cut, for example cut manually with scissors, the full bobbin is removed, an empty tube is attached and the new beginning of the material to be wound is connected to the empty tube.
  • This manual activity is now carried out one after the other on all winding machines in the system, until empty cores are plugged in everywhere and the respective start of the material to be wound up is in place.
  • this process requires e.g. B. also about half an hour. During this time, the entire system is standing.
  • the running time of the winding machine or the system is 50%.
  • the invention is based on the problems outlined and aims to provide a winder for the described application, which involves a mechanical severing of the winding material when changing the bobbin and a machine Placing the ware on an empty tube allows to increase the running time.
  • this is achieved in that two alternately drivable winding spindles are provided which are freely rotatably mounted on a swiveling drum and can be swiveled alternately as a work spindle into a winding position and as a reserve spindle into a changing position in that a cutting device is provided for severing the winding material at a standstill , and that the winding machine has a device for tightening the material to be cut and applied.
  • the invention is initially based on the idea of providing two winding spindles which can be driven in alternation and bearing them freely rotatably on a swiveling drum, as is known per se in continuously operating winding machines in which the continuous supply of winding material cannot be interrupted. This results in the possibility of pivoting one of the winding spindles as the work spindle into the winding position and stopping the drum. The winding process can then take place on this work spindle. After the bobbin is fully wound, the drum is rotated, namely by 180 °, so that the other winding spindle is now in the winding position, while, conversely, the previously wound working spindle is now in the change position in which the full bobbin is removed and one new empty winding tube can be put on.
  • this winding spindle Since this winding spindle is freely rotatable in the changing position when the winding spindle is at a standstill, it must be ensured that the section of the material to be wound between the full bobbin and the empty tube of the other winding spindle is prevented from forming loops, this section sagging.
  • the winder has a device for straightening the ware.
  • This stretching device has a multiple function. On the one hand, it holds the relevant section of rinsed goods reproducibly on the same location on a stretch, so that the cutting device can be placed here in such a way that it can be moved through the held rinsed goods.
  • the cut-off device can reliably perform its function due to the tightly held winding material.
  • the tightening of the material to be rinsed also results in the application process on the empty tube.
  • an adhesive tape is to be wound up as the material to be rinsed, the surface of which faces the empty tube is provided with adhesive
  • the pretensioning process causes the material to be rinsed to make contact with the empty tube in a sufficiently firm manner that, after cutting off the material to be spooled, the material thus formed new beginning already sticks to the circumference of the empty tube and so the new winding can begin.
  • the empty tube is to be provided with a suitable adhesive or the like, for example.
  • the device for stretching the items to be unwound when cutting off and putting on can have a brake for temporarily avoiding the free rotation of the winding spindle pivoting into the changing position and an energy store for stretching out the items to be wound during the cutting and during the application of the items to be wound.
  • the brake prevents the winding spindle pivoting into the changing position during this pivoting process from rotating freely and in an uncontrolled manner, so that sagging of the winding material is avoided.
  • the force accumulator acting on the winding spindle is brought into effect on the winding spindle at the end of the pivoting-in process, so that the winding material is stretched out.
  • the energy accumulator can be designed as a rechargeable spring accumulator, which is therefore recharged with each revolution of the drum. It goes without saying that the drum only rotates by 180 ° and in this respect each winding spindle is provided with a rechargeable spring accumulator.
  • a rotating ring can be freely rotatably mounted on each winding spindle, the spring accumulator having a torsion spring surrounding the winding spindle, one end of which is connected to the winding spindle and the other end of which is connected to the rotating ring.
  • the spring mechanism can be charged by turning the rotating ring using a tensioning device.
  • the brake takes effect, i. H. it brakes the winding spindle, so that the bearing of the torsion spring assigned to the winding spindle is held relatively firmly.
  • the force of the brake and the spring accumulator are expediently coordinated with one another, in such a way that a certain tensioning effect is exerted on the material to be wound already during the pivoting process. This ensures that the material to be wound is always kept taut and, for example, a ribbon cannot twist.
  • the tensioning device for the spring accumulator by rotating the rotating ring can have a fixedly arranged segment, the edge of which is in contact with the rotating ring during the pivoting of the winding spindle into the changing position over a fixed angular range, the angular range also extending to the changing position.
  • This segment is arranged in a fixed manner, in such a region that it comes into contact with the rotating ring over a defined angular range and, in this respect, the pivoting movement of the drum is converted or used in a rotation of the rotating ring and thus in a loading of the spring accumulator.
  • a control device can be assigned to the brake, with which the braking action on the winding spindle is maintained over the angular range defined by the segment with the exception of an end range in the change position. Over a substantial initial range of the angular range caused by the extension of the segment is set, the brake is active so that the spring accumulator can be charged. On the other hand, when the end point or end range in the change position is reached by the winding spindle in question, the brake is released, so that the spring-loaded mechanism can act on the winding spindle in the sense of a rotational movement. It is understood that the direction of rotation is selected so that a force is exerted on the winding material via the winding spindle in the stretching direction.
  • the rotating ring and / or the edge of the segment can be provided with a friction-increasing coating, in particular a coating.
  • a friction-increasing coating in particular a coating.
  • Such a covering can also consist of a rolling ring attached to the rotating ring. It ensures that the pivoting movement of the drum is converted into a rotational movement for the rotating ring by contact of the rotating ring on the segment, which in turn loads the spring-loaded mechanism.
  • a brake disk can be arranged on each winding spindle.
  • a brake pad is arranged on the drum, and the brake pads are assigned a fixedly arranged actuating cam ring, which ensures that the brake on each winding spindle is actuated or released in the corresponding angular ranges of the drum as is done via the circulation of the Drum is required.
  • Springs with adjustable spring supports can be assigned to the brake pads in order to be able to adjust the braking force exerted by the brake sensitively.
  • Each winding spindle can carry one half of a clutch, while the other half of the clutch is connected to a motor arranged in the winding position. This means that the winding machine needs only one motor. It is of course also possible to provide a separate motor for each winding spindle and to either place these motors on the drum or the rotary drive on the winding spindles via an intermediate gear to apply. The respective motor can also act as a brake.
  • the cutting device for severing the winding material at a standstill can be mounted in the hollow axis of the drum and can be moved parallel to the axes of the winding spindles. The cutting process is thus reliably achieved.
  • a sequence of representations of the winding machine is shown in front view in order to illustrate the operation of the device.
  • a frame 1 (Fig. 5)
  • a housing plate 2 is firmly connected, which serves to receive and store essential elements of the device.
  • a hollow axis 3 is arranged in a stationary manner, on which a drum 4 is rotatably or pivotably mounted.
  • Ball bearings 5 (FIG. 5) are provided for this freely rotatable mounting.
  • the drum 4 is thus pivotable about the central axis 6, namely in the direction of arrow 7 (Fig. 3).
  • the drum 4 is provided with a ring gear 8 (Fig. 5) which cooperates with a pinion 9 (Fig. 1) so that the drum can be pivoted via a motor, not shown here.
  • winding spindles 10 and 11 are freely rotatable.
  • the winding spindle 10 is located in the winding station and can therefore be referred to as a work spindle.
  • the winding spindle 11 is in the change position and can therefore be referred to as a reserve spindle.
  • Each winding spindle 10, 11 is freely rotatably supported on the drum 4 via ball bearings 12.
  • Spulgut 13 is fed to the winder according to arrow 14.
  • the winding material 13 runs over stationary rollers 15 and a roller 16 on a dancer arm 17, which is used in a known manner to regulate the thread tension.
  • the winding material 13 reaches the empty sleeve 20 of the winding spindle 10 via a laying device 18, for example a traversing device, and via a roller thread guide 19.
  • the beginning of the winding material 13 is placed on the empty sleeve 20.
  • the winding material 13 is an adhesive tape, the side of which is coated with adhesive and is facing the empty sleeve 20 and is glued to it.
  • the empty sleeve 20 is suitably equipped for application.
  • a cutting device 21 is provided in the center of the drum 4, that is to say in the hollow axis 3.
  • a cutting arm 22 with a blade 23 is arranged on an axis passing through the hollow axis 3 and can be moved parallel to the central axis 6 and thus parallel to the winding spindles 10 and 11.
  • the winding spindle 10 is rotated in the working position according to FIG. 1 and with the material to be wound 13 so that a spool 24 (FIG. 2) builds up on the sleeve 20. If the intended length of the reel 13 is reached on the empty tube 20, the winding spindle 10 is stopped again. Before that, an empty sleeve 20 has been placed on the winding spindle 11 and clamped there. The winding spindle 11 is also at a standstill. As a comparison of FIGS.
  • the drum 4 is now pivoted with the two stationary winding spindles 10 and 11 by a total of 180 ° according to arrow 7, wherein the winding spindle 10 with the full spool 24 now comes into the change position while the Winding spindle 11 runs into the winding position as a new work spindle.
  • the empty sleeve 20 located on the winding spindle 11 already comes into contact with the adhesive side of the winding material 13.
  • the winding machine or each winding spindle 10, 11 is equipped with a device 25 for tightening the winding material 13 during cutting and application, its construction and Operation is explained in detail with reference to FIGS. 5 and 6.
  • This device 25 exerts a pretensioning effect on the section 26 of the winding material 13, which extends from the circumference of the full bobbin 24 to the empty sleeve 20 of the winding spindle 11 in the direction of the roller thread guide 19. 4, the cutting device 21 (at a standstill) of the winding spindles 10 and 11 is actuated so that the blade 23 passes through the section 26 of the winding material 13 which is held taut and cuts it. Then the winding spindle 11, which is now in the winding position, is set in rotation, and a new winding cycle takes place. All of this happens automatically or automatically. Only the spool change is carried out by hand in the position shown in FIG. 4.
  • the full bobbin 24 including the sleeve 20 is released from the winding spindle 10 and a new empty sleeve 20 is placed on the winding spindle 10. This process is carried out on all winding machines in the system, specifically while the respective winding spindle 11 winds up another coil.
  • the device 25 for tightening the material to be wound when cutting and applying is explained with reference to FIGS. 5 and 6.
  • Essential components of the device 25 are a brake 27 and an energy accumulator 28.
  • the brake 27 has a brake disk 29 which is placed on the end of the winding spindle 10 remote from the coil 24 and is connected to the latter in a rotationally fixed manner.
  • a brake pad 30 cooperates with the brake disc 29, which is arranged in the housing of the drum 4 and thus rotates with the drum 4 and which is set against the brake disc 29.
  • An actuating cam ring 33 is fixedly mounted on the housing plate 2, which is arranged above the circumference of the housing plate 2 and which is of different heights Has protrusions or areas protruding in the axial direction, as is necessary for the function of the brake 27.
  • Fig. 5 shows the released state of the brake 27 in the change position. The brake pad 30 is lifted from the brake disc 29 with play. It goes without saying that the actuating cam ring 33 lifts the brake 27 or keeps it released even in the winding position.
  • the actuating cam ring 33 is designed such that it permits the application of the brake pad 30 against the brake disk 29 in an angular region 34, so that the brake 27 fulfills its braking function in this angular region 34.
  • the energy accumulator 28 can be designed as a spring accumulator with a torsion spring 36.
  • the torsion spring 36 extends around the winding spindle 10.
  • One end of the torsion spring 36 is connected in a rotationally fixed manner to the winding spindle 10 via a ring 37.
  • the other end of the torsion spring 36 engages in a rotary ring 38 which is freely rotatably mounted on the winding spindle 10.
  • the rotating ring 38 can be freely supported on the winding spindle 10 via a ball bearing (not shown here).
  • the circumference of the rotating ring 38 can be provided with a covering 39, for example in the form of a rolling ring.
  • a tensioning device 40 is used to tension the energy accumulator 28 and, in addition to the rotary ring 38, has a fixed segment 41 as an essential element.
  • the segment 41 has an edge 42 which cooperates with the rotary ring 38.
  • the segment 41 has an angular region 43, which is larger than the angular region 34 and coincides therewith over wide regions.
  • the angular range 43 in particular also includes the change position.
  • the segment 41 is stationary or clamped on the hollow axis 3, so that when a winding spindle 10, 11 swivels into the change position, the rotating ring 38 rolls on the edge 42 and thus overall a rotational movement about the traveling axis 35 of the winding spindle 10 or 11 executes.
  • the energy accumulator 28 With this rotary movement, the energy accumulator 28 is charged or the torsion spring 36 is tensioned. This is possible because the brake 27 brakes the brake disk 29 and thus the winding spindle 10, 11 over the angular range 34. It goes without saying that the brake 27 is finely tuned to the energy accumulator 28, in such a way that the inserted brake can slip slightly when the energy accumulator 28 is being loaded while applying a pretensioning effect on the section 26 of the material to be washed 13. It is therefore the section 26 of the material to be wound 13 itself that provides the counterforce to the charging force of the energy store 28. This results in the desired stretching effect of the section 26 of the rinsed material 13.
  • This stretching effect not only serves to keep the section 26 stretched for the purpose of severing via the cutting device 21, but at the same time the stretching effect brings about a pressing of the section 26 of the rinsed material 13 against the empty tube 20 of the Winding spindle 10 in the winding station (Fig. 1).
  • the application process is then carried out mechanically. 6 that the angular range 43 is larger than the angular range 34 and also extends to the change position.
  • An end region 44 is defined by the difference between the two regions, which includes the change position and in which the end position Rotating ring 38 of the clamping device 40 is held, that is prevented from rotating; the brake 27 is released in the end region 44 so that the torsion spring 36 of the energy accumulator 28 is now able to turn the respective winding spindle 10 or 11 in the direction of rotation about the axis 35.
  • the final stretching effect is now achieved on section 26 of the material to be wound 13, as is necessary for cutting through and applying the material to be wound 13 to the new empty tube 20.
  • one half 45 of a permanent magnet synchronous clutch is connected in a rotationally fixed manner.
  • the other half of this clutch is on the winding motor, not shown. It is sufficient to provide only one winding motor for this winding machine, the axis of which is aligned with the axis of the work station.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Recrystallisation Techniques (AREA)
  • Making Paper Articles (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Sanitary Thin Papers (AREA)
  • Winding Filamentary Materials (AREA)
EP96116022A 1995-10-13 1996-10-07 Machine de bobinage à fonctionnement discontinu pour enrouler du matériau à bobiner Expired - Lifetime EP0768258B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19538095A DE19538095C2 (de) 1995-10-13 1995-10-13 Diskontinuierlich arbeitende Spulmaschine zum Aufwickeln von Spulgut
DE19538095 1995-10-13

Publications (3)

Publication Number Publication Date
EP0768258A2 true EP0768258A2 (fr) 1997-04-16
EP0768258A3 EP0768258A3 (fr) 1997-10-22
EP0768258B1 EP0768258B1 (fr) 2001-12-12

Family

ID=7774723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116022A Expired - Lifetime EP0768258B1 (fr) 1995-10-13 1996-10-07 Machine de bobinage à fonctionnement discontinu pour enrouler du matériau à bobiner

Country Status (7)

Country Link
US (1) US5775628A (fr)
EP (1) EP0768258B1 (fr)
JP (1) JPH09110246A (fr)
KR (1) KR100437950B1 (fr)
AT (1) ATE210589T1 (fr)
DE (2) DE19538095C2 (fr)
TW (1) TW318173B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107298329A (zh) * 2017-06-15 2017-10-27 南通三信塑胶装备科技股份有限公司 一种薄膜回转收卷工位的收卷工艺

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010021838A (ko) * 1997-07-15 2001-03-15 알코아 인코포레이티드 연속적인 스트립 처리 공정에서의 스트립 고속 이송 방법및 장치
DE202005004817U1 (de) * 2005-03-22 2005-08-25 Dietze & Schell Maschinenfabrik Gmbh & Co. Kg Doppelspindelwickler
DE102006038710A1 (de) * 2006-08-18 2008-02-21 Dietze & Schell Gmbh & Co Kg Verfahren zum Wechseln zwischen den beiden Spulstellen eines Doppelspindelwicklers
KR100795065B1 (ko) 2007-03-09 2008-01-17 한국전기연구원 파동 전파형 장선 테이프 증착장치
KR101510567B1 (ko) 2012-12-26 2015-04-08 주식회사 포스코 맨드렐 코일박스의 운용방법, 이를 이용한 연연속 압연방법 및 연연속 압연장치
CN103381432B (zh) * 2013-05-27 2015-02-18 李应杰 一种非晶带卷带机
CN110304496A (zh) * 2019-05-28 2019-10-08 青岛电气工程安装有限公司送变电分公司 一种带有液压千斤顶结构的线缆盘制动装置

Citations (2)

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GB683393A (en) * 1948-08-04 1952-11-26 Firestone Tire & Rubber Co Improvements in or relating to a method and apparatus for winding sheet or strip material
FR2354194A1 (fr) * 1976-06-08 1978-01-06 Dcm Machine pour la realisation de bobineaux de papier constitues de plusieurs bandes enroulees ensemble

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US1040188A (en) * 1912-08-09 1912-10-01 Brown & Williams Automatic winding-machine.
US2586833A (en) * 1945-05-21 1952-02-26 Kohler System Company Core enveloper
US3486708A (en) * 1968-05-13 1969-12-30 Appleton Mach Web supply
GB1453933A (en) * 1972-12-13 1976-10-27 Agfa Gevaert Automatic winding and cutting apparatus for webs
IT1067135B (it) * 1976-03-29 1985-03-12 Metalmeccanica Gori Congegno di trasmissione con dispositivo a ruota libera per l immediato arresto di un membro condotto azionato in rotazione attraverso un innesto a frizione
US4458852A (en) * 1981-06-05 1984-07-10 American Hoechst Corporation Web transfer apparatus
US4431140A (en) * 1981-11-27 1984-02-14 The Black Clawson Company Continuous pressure roll winder
US4541583A (en) * 1985-01-09 1985-09-17 Mobil Oil Corporation Continuous layon roller film winder
US4798350A (en) * 1987-05-29 1989-01-17 Magna-Graphics Corporation Web rewind apparatus with cutless web transfer
CH676356A5 (fr) * 1988-12-09 1991-01-15 Ortlinghaus Ag
JP2541360B2 (ja) * 1991-11-25 1996-10-09 株式会社島津製作所 繊維巻取り機
US5484499A (en) * 1993-12-17 1996-01-16 Converex, Inc. Method and apparatus for laying up laminates of adhesive backed sheets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB683393A (en) * 1948-08-04 1952-11-26 Firestone Tire & Rubber Co Improvements in or relating to a method and apparatus for winding sheet or strip material
FR2354194A1 (fr) * 1976-06-08 1978-01-06 Dcm Machine pour la realisation de bobineaux de papier constitues de plusieurs bandes enroulees ensemble

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107298329A (zh) * 2017-06-15 2017-10-27 南通三信塑胶装备科技股份有限公司 一种薄膜回转收卷工位的收卷工艺

Also Published As

Publication number Publication date
US5775628A (en) 1998-07-07
EP0768258A3 (fr) 1997-10-22
KR100437950B1 (ko) 2004-08-25
KR970020914A (ko) 1997-05-28
TW318173B (fr) 1997-10-21
DE19538095C2 (de) 1999-07-29
DE59608426D1 (de) 2002-01-24
DE19538095A1 (de) 1997-04-17
ATE210589T1 (de) 2001-12-15
JPH09110246A (ja) 1997-04-28
EP0768258B1 (fr) 2001-12-12

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