EP0500848A1 - Dispositif pour la manutention de lisses ou de lamelles dans une machine a rentrer les fils de chaine. - Google Patents

Dispositif pour la manutention de lisses ou de lamelles dans une machine a rentrer les fils de chaine.

Info

Publication number
EP0500848A1
EP0500848A1 EP91915026A EP91915026A EP0500848A1 EP 0500848 A1 EP0500848 A1 EP 0500848A1 EP 91915026 A EP91915026 A EP 91915026A EP 91915026 A EP91915026 A EP 91915026A EP 0500848 A1 EP0500848 A1 EP 0500848A1
Authority
EP
European Patent Office
Prior art keywords
positioning
station
carrier
slats
strands
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
EP91915026A
Other languages
German (de)
English (en)
Other versions
EP0500848B1 (fr
Inventor
Markus Badertscher
Hermann Eglseer
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.)
Staeubli AG
Original Assignee
Zellweger Uster AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zellweger Uster AG filed Critical Zellweger Uster AG
Publication of EP0500848A1 publication Critical patent/EP0500848A1/fr
Application granted granted Critical
Publication of EP0500848B1 publication Critical patent/EP0500848B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds

Definitions

  • the present invention relates to a device for the handling of strands or lamellae, hereinafter referred to as harness organs, in a warp threading machine, from their separation from a stack through the insertion of the warp threads to the transfer to support elements provided for arrangement in a weaving machine.
  • Previously known devices of this type such as are used, for example, in the warp threading machine USTER DELTA (USTER - registered trademark of Zellweger Uster AG), comprise a multitude of different elements, each of which performs only a limited part function within the stated process .
  • this means for example, that after they have been separated, they are transported from the first organs to the pull-in position, there they are grasped by second organs and rotated to align them for the warp thread pull-in, and then transported onwards by third organs, the various ones Organs are sometimes only non-positively connected to the lamellae.
  • the interfaces between the different organs within the device in particular represent potential sources of error. This applies in particular if there is a non-positive connection between the organs and the lamellae.
  • the invention is now intended to provide a device of the type mentioned at the beginning in which the potential sources of error are minimized and the costs are kept as low as possible.
  • This object is achieved according to the invention by holding means for receiving the separated tableware organs and for their form-fitting transport to a feed and a transfer station, by positioning means arranged in the area of the feed station, and by means of transfer means arranged in the area of the transfer station for transferring the one retracted warp thread harness organ on the Tragor ⁇ organs.
  • the device according to the invention therefore requires only a single type of handling means for the handling of the strands or lamellae, from their separation to their transfer to their supporting members. And this means that by eliminating a large number of potential sources of error and fault causes Things the device is much less susceptible to failure in operation.
  • the device only requires two interfaces for integration into the pulling-in process, one to the separating station and one at the transfer station to the supporting members. This also significantly reduces the susceptibility to faults and also opens up the possibility of a modular construction of the drawing-in machine.
  • FIG. 1 shows an overall perspective view of a drawing-in machine according to the invention
  • FIG. 2 shows a perspective view of the drawing-in module of FIG
  • FIG. 1 is a plan view of an inventive device for handling strands in the direction of arrow III of Fig. 2
  • Fig. 4 is a view in the direction of arrow IV of Fig. 3
  • Fig. 5 shows a detail of 4 is an enlarged scale
  • FIG. 6 is a view in the direction of arrow VI from FIG. 5
  • FIG. 7 is a plan view of an inventive device for handling lamellae
  • FIG. 8 is a view in the direction of arrow VIII of FIG. 7.
  • the drawing-in machine consists of a basic frame 1 and of various assembly groups arranged in it. pen, which each form a functional module.
  • a warp beam carriage 2 with a warp beam 3 arranged on it can be seen.
  • the warp beam carriage 3 also contains a lifting device 4 for holding a frame 5 on which the warp threads KF are stretched. This clamping takes place before the actual pulling-in and at a location separate from the drawing-in machine, the frame 5 being positioned at the lower end of the lifting device 4 in the immediate vicinity of the warp beam 3.
  • the warp beam 2 with warp beam 3 and lifting device 4 is moved to the so-called upgrade side of the pulling-in machine and the frame 5 is lifted upwards by the lifting device 4 and then assumes the position shown.
  • the frame 5 and the warp beam 3 are moved in the longitudinal direction of the base frame 1. During this shift, the warp threads KF are guided past a thread separation group 6 and separated and divided. After division, the warp threads KF are cut off and presented to a pull-in needle 7, which forms part of the so-called pull-in module.
  • a pull-in needle 7 For the division of the warp threads, for example, the division device used in the warp knitting machine USTER TOPMATIC (USTER - registered trademark of Zellweger Uster AG) can be used.
  • a screen device 8 can be seen, which belongs to an operating station and is used to display machine functions and machine malfunctions and for data input.
  • the operating station which forms part of a so-called programming module, also contains an input stage for the manual input of certain functions, such as creeper gear, start / stop, repetition of operations, and the like.
  • the drawing-in machine is controlled by a control module which contains a control computer and which is arranged in a control box 9. In addition to the control computer, this control box contains a module computer for each main module, the individual module computers being controlled and monitored by the control computer.
  • the main modules of the drawing-in machine in addition to the modules already mentioned, drawing module, yarn module, control module and programming module, are also the strand, the lamella and the sheet module.
  • the warp threads and the individual elements into which the warp threads are to be drawn are fed in on the upgrade side, and the so-called Te dishes (strands, slats and sheets) can be removed with the warp threads drawn in.
  • the frame 5 with the warp threads KF and the warp beam carriage 2 with the warp beam 3 are moved past the thread separation group 6 to the right, the pull-in needle 7 successively taking out the warp threads KF stretched on the frame 5.
  • the warp thread monitor slats LA Immediately behind the plane of the warp threads KF are the warp thread monitor slats LA, behind them the healds LI and even further behind the reed.
  • the lamellae LA are stacked in hand magazines, and the full hand magazines are hung in inclined feed rails 11, on which they are transported to the right, towards the pull-in needle 7. There they are separated and brought into the feed position. After pulling in, the lamellae LA arrive on lamella support rails 12 on the dismantling side.
  • the strands LI are lined up on rails 13 and automatically shifted to a separating stage on them. Then the strands LI are individually brought into their retracted position and, after they have been drawn in, onto the corresponding heald frames 14 on the Spreading side distributed. The reed is also moved past the pull-in needle 7 step by step, the corresponding sheet gap being opened for the feed. After being drawn in, the sheet is also on the dismantling side. To the right of the heald frames 14 is a part of the reed WB. This illustration is to be understood purely for illustrative purposes, since the reed is of course located on the upgrade page in the position of the frame 5 shown.
  • a so-called crockery trolley 15 is provided on the dismantling side. This is inserted together with the slat support rails 12, heald frames 14 and a holder for the reed attached to the base frame 1 in the position shown and carries the dishes with the drawn-in warp threads KF after being drawn in.
  • the warp beam carriage 2 with the warp beam 3 is located directly in front of the tableware carriage 15.
  • the dishes are reloaded from the tableware carriage 15 onto the warp beam carriage 2, which then carries the warp beam 3 and the pulled-in dishes and to the loom in question or can be moved to an interim storage facility.
  • the pull-in needle 7, which forms the main part of the pull-in module, is formed by a gripper belt 16 and a clamping gripper 17 carried by it.
  • the pull-in needle 7 is guided in the lifting direction (arrow P) in a channel-like guide 18, which extends from the frame 5 in a straight direction to an arcuate end part 19.
  • the guide 18 passes through the drawing-in machine and is interrupted in the area of the tableware organs (lamellae LA, strands LI) and the reed WB in order to feed the tableware organs to the drawing-in position and to transport them further after the drawing-in process has taken place (arrow S) to enable the lamella support rails 12 and to the heald frames 14 (FIG.
  • the gripper belt 16 is provided with evenly spaced transport holes and is driven by a motor-driven belt wheel BR, which has cam-like or lug-shaped projections that extend into the transport holes on its circumference.
  • the feeding of the slats LA and the strands LI to the retraction position and their further transport until transfer to the slat support rails or to the heald frames is carried out by a sub-module lamella distribution LD and by a sub-module strand distribution HD.
  • the strand distribution module HD follows in the transport direction of the strands LI to the strand separation submodule, which is described in Swiss Patent Application No. 706/90.
  • the lamella distribution module LD follows the sub-module lamella separation in the transport direction of the lamella LA, which is described in the CH patent application 2699/90.
  • Both sub-modules HD and LD perform the same functions in principle by taking over the strands or lamellae offered to them sequentially, transporting them to their retracted position and, after the warp thread has been drawn in, transporting them to a transfer station, where the transfer to the heald frames or Slat support rails are made.
  • the foremost strand LI of a strand stack which lies immediately in front of the submodule HD, is brought out of the strand stack into an intermediate position by a piston-like compartment member and from this intermediate position by one Pusher pushed onto needle-like holding means.
  • the latter form part of the strand distribution module HD.
  • the lamellae LA are pushed a little upwards out of their stack by a friction roller, so that their head ends protrude freely upwards.
  • a hook mounted on a conveyor belt grips the slats and pulls them completely out of the stack into a transfer station.
  • the free-hanging lamella is blown with compressed air onto appropriate holding means, which form part of the lamella distribution module LD.
  • the strand distribution module HD is shown in FIGS. 3 to 6.
  • 3 shows a plan view on a scale of approximately 1: 2.5
  • FIG. 4 shows a side view in the direction of arrow IV of FIG. 3 on a somewhat smaller scale
  • FIGS. 5 and 6 show a detail on an enlarged scale Scale.
  • the strand distribution module HD essentially comprises two components, transport planes formed by corresponding plates 20, in each of which an endless transport means provided with strand holders is guided. This is designed like a tape, belt or chain.
  • a chain is preferably used as the means of transport, which consists of individual links 22 carried by a toothed belt 21.
  • the toothed belt 21 is provided with teeth on both sides; the toothing on the inside engages with corresponding guide rollers 23, at least one of which is motor-driven.
  • the toothing on the outside of the toothed belt 21 centers the chain links.
  • Each of the chain links 22 has on its side facing away from the toothed belt 21 a projecting, V-shaped rib, at the apex of which a pin 24 designed as a strand holder is anchored.
  • the strands are plugged onto the pins 24 with their end hooks; the mutual vertical distance between the pins 24 and thus the plates 20 is adjustable to match the length of the strands to be processed.
  • a threaded spindle GS is used for this purpose, which is in engagement with threaded locks mounted on the plates 20 of the transport planes.
  • the strands are transferred to the strand distribution module HD at the locations indicated by arrows A, the two arrows symbolizing that the strand separation and its transfer takes place in two channels, which is not absolutely necessary.
  • Sensors 25 for monitoring the wire takeover are present at the takeover points. After the takeover, the strands are transported from the chain 21, 22 rotating counterclockwise and driven intermittently by a stepping motor to the thread take-up position.
  • a guide rail 26 is provided between the takeover point A and the thread pull-in position, which prevents the strands from falling off the pins 24.
  • the thread feed path is denoted by a dash-dotted straight line FE
  • the thread pull-in position of the strands is the intersection of their path with the straight line FE.
  • the channel-like guide 18 (FIG. 2) has an interruption through which the strands cross the guide 18. Since the thread eye of the strands is relatively small, the strands for threading must be positioned very precisely.
  • the height positioning means HP shown in FIG. 4 comprise an endless cable 28 guided over drive rollers 27, to each of which two positioning pins 29 are fastened.
  • these positioning pins move up and down and press against the V-shaped ribs of the two chain links 22 to be positioned, the drive for the cable 28 and the upper ones formed by a pneumatic cylinder 30
  • Drive rollers 27 are mounted on a support arm 31, which in turn is supported by a carrier shaft 32 passing through the strand distribution module HD. A total of two such carrier shafts 32 are provided.
  • the side positioning means SP which can be seen in particular in FIGS. 5 and 6, are mounted in the region of the channel-like guide 18 on a support 33 which is also fastened to the support shaft 32 carrying the support arm 31 and comprise a transverse guide 34 for the strands, a positioning lever 35 and a control bracket 36.
  • the transverse guide 34 which is arranged just below the channel-like guide 18, has a funnel-like inlet part and then a relatively narrow guide part, in which the strands are guided quite exactly with respect to their lateral displacement.
  • the exact lateral positioning is carried out by the positioning lever 35.
  • This is designed as a two-part gripper. It is driven by a pneumatic cylinder 37 and is moved obliquely from below against the strand to be positioned. In its end position shown in dashed lines in FIG. 5, the positioning lever 35 is closed by the control bracket 36, which is driven by a pneumatic cylinder 38, whereby the strand is clamped and positioned for the thread retraction.
  • the strand is released again by the positioning lever 35, so that it can leave the transverse guide 34 and finally also the guide rail 26 and be transferred to its strand support rail.
  • This transfer takes place by means of pneumatically driven ejection cylinders 39 which are arranged in the region of the two plates 21 and which can be selectively controlled, in pairs, depending on the distribution of the strands on the individual heald frames specified by the pattern to be produced on the weaving machine the upper and the lower ejection cylinder 39 of each strand. As shown, there are 28 upper and lower ones Ejection cylinder 39 is provided so that the strands can be distributed over a maximum of 28 shafts.
  • FIGS. 7 and 8 show the lamella distribution module LD, specifically in FIG. 7 in a plan view in the direction of arrow III of FIG. 2 on a scale of approximately 1: 1.5 and in FIG. 8 in a side view in the direction of arrow VIII of FIG. 7.
  • the function of the lamella distribution module LD is very similar to that of the strand distribution module HD.
  • the main differences between the two lie in the fact that the slats are shorter than the strands, that their thread eye is considerably larger than that of the strands, so that the requirements for the positioning accuracy for the drawing in are not so high, and that the number of lamellar support rails is considerably less than that of the heddle support rails.
  • the lamella distribution module LD like the strand distribution module HD, contains as a base two spaced plates 40 and 41, the mutual distance of which is adjustable and which serve as a carrier for the various transport and positioning means for the lamella LA.
  • an endless toothed belt 43 is tensioned via corresponding gear wheels 42, on the outside of which holding means for the lamellae LA are fastened.
  • the lamellae LA are suspended with their support slot on the support pins 44.
  • the lamellae are transferred to the holding means 44, 45 at the locations indicated by arrows B, the two arrows symbolizing two processing channels of the lamella separation stage.
  • the takeover of the slats from the slat distribution module LD is monitored by sensors (not shown).
  • the lamellae LA are transported from the toothed belt 43, which is moved counterclockwise and driven intermittently by a stepping motor 46, to the thread feed position, which lies in the region of a star-shaped positioning wheel 47 carried by the lower plate 41.
  • a guide rail 48 is provided in the area of the two plates 40, 41 between the takeover point B and immediately after the thread pull-in position in order to prevent the slats from falling off the support pins 44.
  • the channel-like guide 18 passes through the lamella distribution module LD along the dash-dotted straight line FE (FIG. 7) marking the thread feed path in the level between the two plates 40 and 41; the thread retraction position is at the point of intersection of this straight line through the toothed belt 43 on the positioning wheel 47, which is designated by an x in FIG. 8. Then the thread eye FA aligned by the support pins 44 and between the projections of the position n istsrades 47 positioned lamella LA with the straight line FE. In this area, the channel-like guide 18 (FIG. 2) has an interruption in which the slats LA cross the guide 18.
  • the positioning wheel 47 is also driven intermittently, specifically via a toothed belt 49 and a toothed wheel 50 which fastens on the drive shaft 52 of the toothed belt 43 carrying the holding means 44, 45 for the lamellae LA and driven by the stepper motor 46 via a toothed belt drive 51 is.
  • the slats LA After threading in the area of the positioning wheel 47, the slats LA, which now each carry a retracted warp thread, reach the area of a bank-like row 53 of transfer stations, of which, according to FIG. 7, the number of 8 possible slat support rails 12 (FIG. 1) a total of 8 are provided. Depending on the program, the slats LA are pushed onto the corresponding slat support rails 12 in the transfer stations.
  • the transfer stations consist of an upper and a lower substation 54 and 55, each of which is attached to the corresponding plate 40 and 41, respectively.
  • Both sub-stations 54 and 55 each have a pneumatically driven ejector 56 or 57, the actuation of which operates the hitting slat LA is pushed onto its mounting rail 12.
  • the upper sub-station 54 is designed in such a way that when the slats are pushed down from the support pins 44, their uppermost edge abuts against an inclined, downwardly inclined guide plane 58 and is thus guided downward, so that they necessarily lead to a correspondingly inclined inlet flank 59 of the slat support rails 12 are guided and slide along this onto the horizontal part of the slat support rail 12.
  • the lower sub-station 55 contains a shaft-like chamber 60 which is open to the front, rear and top and which is separated from the chamber of the adjacent stations by transverse walls 61. Against the toothed belt 43 and the ejector 57, each chamber 60 is closed off with a flap 62 in the manner of a double swinging door. This serves as a safeguard against inadvertent dropping of the slats LA from the support pins 44 as a result of the tensioning force of the drawn-in warp threads.
  • the ejector 57 When the ejector 57 is activated, it opens the flap 62 and pushes the lamella LA at its lower part into the chamber 60; at the same time, the upper ejector 56 pushes the lamella from its support pins 44 against the guide plane 58 onto the entry flank 59 of the lamella support rails 12.
  • the latter are held in the transfer position by spacer plates which can be displaced in the longitudinal direction of the rail; the spacer plates are transported along the slat support rails when they are displaced 12 the slats further.
  • the lamella support rails 12 are held horizontally by holding bolts which can be moved in and out and are fastened to a transport system. In their retracted position, they position the slat support rails 12, and they are extended to pass the slats at the point in question.
  • Both the strand and the lamella distribution module HD or LD are provided on their upper plate 21 or 40 with corresponding cover hoods which on the one hand cover the entire mechanics and protect them from dust, and on the other hand connections for the required pneumatic and electronic lines exhibit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Knitting Of Fabric (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Warping, Beaming, Or Leasing (AREA)

Abstract

Le dispositif sert à la manutention des lisses ou des lamelles depuis leur séparation d'un tas, en passant par la rentrée des fils de chaîne, jusqu'à la remise à des véhiculeurs devant être disposés sur un métier à tisser, et il comporte des organes de maintien (22, 24) destinés à recevoir les lisses ou les lamelles séparées et à les transporter par liaison de forme jusqu'à un poste d'entrée et un poste de transfert, ainsi que des organes de positionnement (HP, SP) disposés au niveau du poste de transfert pour le transfert aux véhiculeurs des lisses ou des lamelles présentant un fil de chaîne rentré. De ce fait, un seul type d'organe de manutention suffit pour la manutention des lisses et des lamelles depuis leur séparation jusqu'au transfert aux véhiculeurs. Il en résulte une réduction appréciable des sources d'erreurs potentielles et donc de la sensibilité aux dérangements. De plus, le dispositif ne nécessite que deux interfaces, une vers le poste de séparation et une au poste de transfert aux véhiculeurs.
EP91915026A 1990-09-17 1991-09-03 Dispositif pour la manutention de lisses ou de lamelles dans une machine a rentrer les fils de chaine Expired - Lifetime EP0500848B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3000/90A CH682577A5 (de) 1990-09-17 1990-09-17 Vorrichtung zur Handhabung von Litzen oder Lamellen in einer Kettfadeneinziehmaschine.
CH3000/90 1990-09-17
PCT/CH1991/000190 WO1992005303A1 (fr) 1990-09-17 1991-09-03 Dispositif pour la manutention de lisses ou de lamelles dans une machine a rentrer les fils de chaine

Publications (2)

Publication Number Publication Date
EP0500848A1 true EP0500848A1 (fr) 1992-09-02
EP0500848B1 EP0500848B1 (fr) 1996-03-20

Family

ID=4246386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91915026A Expired - Lifetime EP0500848B1 (fr) 1990-09-17 1991-09-03 Dispositif pour la manutention de lisses ou de lamelles dans une machine a rentrer les fils de chaine

Country Status (15)

Country Link
US (1) US5287605A (fr)
EP (1) EP0500848B1 (fr)
JP (1) JP3213813B2 (fr)
KR (1) KR100202752B1 (fr)
AT (1) ATE135760T1 (fr)
AU (1) AU646496B2 (fr)
CA (1) CA2066209A1 (fr)
CH (1) CH682577A5 (fr)
CZ (1) CZ281474B6 (fr)
DE (1) DE59107583D1 (fr)
ES (1) ES2084177T3 (fr)
PT (1) PT98983A (fr)
RU (1) RU2072010C1 (fr)
TR (1) TR25531A (fr)
WO (1) WO1992005303A1 (fr)

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ATE225423T1 (de) * 1998-08-17 2002-10-15 Staeubli Ag Pfaeffikon Vorrichtung und verfahren zum aufnehmen und halten bzw. zum verteilen von geschirrelementen
DE59906023D1 (de) 1998-09-09 2003-07-24 Staeubli Ag Pfaeffikon Vorrichtung zum transportieren von geschirrelementen, insbesondere von lamellen
AU5276099A (en) * 1998-09-14 2000-04-03 Staubli Ag Pfaffikon Strand or lamella feeding system
ATE348907T1 (de) * 2000-06-20 2007-01-15 Staeubli Ag Pfaeffikon Vorrichtung und verfahren zur einführung von kettfäden in ein webblatt
EP2199443B1 (fr) * 2008-12-19 2016-03-16 Stäubli AG Pfäffikon Unité mobile pour le rentrage de la chaine
CN102773692A (zh) * 2012-07-25 2012-11-14 浙江旷达纺织机械有限公司 一种用于通丝装造的校眼设备的套管固定模板
CN103753803B (zh) * 2014-01-17 2016-03-02 苏州市职业大学 一种自动传送装置
CN107881637B (zh) * 2017-12-21 2024-01-30 广东溢达纺织有限公司 穿综机推纱器及穿综机
CN110079923A (zh) * 2019-05-21 2019-08-02 深圳市海弘装备技术有限公司 一种停经片的分离、转移、排出的装置与方法
ES2913787T3 (es) * 2019-06-17 2022-06-06 Groz Beckert Kg Procedimiento, dispositivo, carro desplazable y máquina de remetido
ES2951844T3 (es) 2019-06-17 2023-10-25 Groz Beckert Kg Dispositivo y procedimiento para manejar elementos de marco de lizos
EP3754074B1 (fr) 2019-06-19 2024-01-03 Groz-Beckert KG Dispositif et procédé de manipulation des éléments de harnais
ES2913789T3 (es) 2019-06-19 2022-06-06 Groz Beckert Kg Dispositivo y procedimiento para manipular accesorios de tejeduría
CN111058163B (zh) * 2019-12-27 2021-05-04 深圳市海弘装备技术有限公司 自动穿综设备

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Also Published As

Publication number Publication date
PT98983A (pt) 1993-11-30
KR920703897A (ko) 1992-12-18
CA2066209A1 (fr) 1992-03-18
AU8411091A (en) 1992-04-15
TR25531A (tr) 1993-05-01
AU646496B2 (en) 1994-02-24
CS283791A3 (en) 1992-03-18
WO1992005303A1 (fr) 1992-04-02
JP3213813B2 (ja) 2001-10-02
US5287605A (en) 1994-02-22
DE59107583D1 (de) 1996-04-25
ATE135760T1 (de) 1996-04-15
KR100202752B1 (ko) 1999-06-15
CH682577A5 (de) 1993-10-15
ES2084177T3 (es) 1996-05-01
RU2072010C1 (ru) 1997-01-20
CZ281474B6 (cs) 1996-10-16
EP0500848B1 (fr) 1996-03-20
JPH05502072A (ja) 1993-04-15

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