EP0646669B1 - Vorrichtung zur selektiven Übergabe von Litzen - Google Patents

Vorrichtung zur selektiven Übergabe von Litzen Download PDF

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Publication number
EP0646669B1
EP0646669B1 EP94112607A EP94112607A EP0646669B1 EP 0646669 B1 EP0646669 B1 EP 0646669B1 EP 94112607 A EP94112607 A EP 94112607A EP 94112607 A EP94112607 A EP 94112607A EP 0646669 B1 EP0646669 B1 EP 0646669B1
Authority
EP
European Patent Office
Prior art keywords
rails
healds
heald
adaptor
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.)
Expired - Lifetime
Application number
EP94112607A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0646669A1 (de
Inventor
Markus Wolf
Philipp Kuehne
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
Staeubli 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 Staeubli AG filed Critical Staeubli AG
Publication of EP0646669A1 publication Critical patent/EP0646669A1/de
Application granted granted Critical
Publication of EP0646669B1 publication Critical patent/EP0646669B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/40—Constructions of lifting-cords
    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/42—Arrangements of lifting-cords
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds

Definitions

  • the present invention relates to a device for the selective transfer of strands from a distribution station of a drawing-in machine to strand support rails, with a strand holder forming part of the distribution station, on which the strands are held individually, and with a transfer station assigned to the strand support rails and having transfer elements, at which the strand holder is passed.
  • the strand transfer is different depending on the type of strands used, whether those with open or with closed end loops. If healds are processed with open end loops, such as the USTER DELTA warp threading machine (USTER - registered trademark of Zellweger Uster AG), the healds are transferred to the heald support rails already mounted on the heald frames. In this case, since it is sufficient to position the heald frames in the warp threading machine and align them with the heald holders, the transfer is easy and requires no special measures.
  • the heald support rails When processing healds with closed end loops, such as the USTER EMU warp threading machine, the heald support rails are filled with healds outside the heald frames and only then attached to the heald frames. It is therefore necessary to position the heddle support rails in the warp threading machine in such a way that the support rails with the closed end loops on all sides can be moved on the support rails without being disturbed.
  • the heald support rails are mounted on spaced retaining bolts, which are temporarily removed from a plurality of healds to pass through a stack.
  • a distribution station with a strand holder is not provided here, but the strand support rails protrude freely at one end against the separation station.
  • the invention is now to provide a transfer device of the type mentioned at the outset which enables trouble-free automatic transfer of strands with closed end loops.
  • This object is achieved according to the invention in that in the area of the transfer station for each mounting rail there is provided a lock with two spaced-apart clamps which are controlled to hold the mounting rail and a slide for displacing the strands on the mounting rail, and in that the clamps are opened alternately, the The strands are transported through the clamp adjacent to the strand holder through the respective transfer element and through the other clamp through the slide.
  • the lock with the controlled clamps makes it possible to fix the mounting rails as close as possible to the strand holder, so that an exact alignment of the end of the mounting rails on the strand holder and thus a trouble-free transfer of the strands is ensured.
  • a preferred embodiment of the device according to the invention is characterized in that the heddle support rails in the area of the transfer station have an inlet part which is formed by an adapter rail and is held by the clamps and is provided for the intermediate storage of the heddles.
  • the adapter rail has the advantage that all types of stranded support rails can be used without any problems. Because in the transfer station, clamps, adapter rails, strand holders and sliders can be optimally coordinated with one another, regardless of the type of strand support rail being used, and only the connection between the adapter rail and strand support rail needs to be adapted to the latter.
  • the drawing-in machine consists of a base frame 1 and of various assemblies arranged in it, each of which forms a functional module.
  • a warp beam carriage 2 with a warp beam 3 arranged on it can be seen.
  • the warp beam carriage 2 also contains a lifting device 4 for holding a thread frame 5 on which the warp threads KF are stretched. This tensioning takes place before the actual pulling-in and at a location separate from the drawing-in machine, the thread 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 carriage 2 with the warp beam 3 and lifting device 4 is moved to the so-called upgrade side of the pulling-in machine and the thread frame 5 is lifted up by the lifting device 4 and suspended in the base frame 1, where it then assumes the position shown.
  • the thread frame 5 is displaceable in the longitudinal direction of the base frame 1 by a drive, not shown. With this shifting, the warp threads KF are guided past a thread separation group 6 forming part of a so-called yarn module, and are separated and divided in the process. After division, the warp threads KF are cut off and presented to a pull-in needle 7, which forms part of the so-called feed module.
  • the sectioning device used in the USTER TOPMATIC warp knitting machine can be used, for example, to separate the warp threads.
  • a monitor 8 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 crawl gear, start / stop, repetition of processes, and the like.
  • the drawing-in machine is controlled by a control module containing a control computer, which is arranged in a control box 9.
  • this control box contains a module computer for each so-called main module, the individual module computers being controlled and monitored by the control computer.
  • the main modules of the drawing machine are, in addition to the modules already mentioned, drawing module, yarn module, control module and programming module, the strand, the lamella and the sheet module.
  • the thread separation group 6, which presents the warp threads KF to be drawn in to the pull-in needle 7, and the path of movement of the pull-in needle 7, which runs vertically to the plane of the stretched warp threads KF, determine a plane in the region of a support 10 forming part of the base frame, which supports the already mentioned upgrade side of the so-called disassembly side of the drawing machine.
  • the warp threads and the individual are on the upgrade side Elements into which the warp threads are to be fed are fed, and the so-called crockery (strands, lamella and leaf) with the drawn-in warp threads can be removed on the dismantling side.
  • the thread frame 5 with the warp threads KF and the warp beam carriage 2 with the warp beam 3 are moved past the thread separating 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 guard slats LA Immediately behind the plane of the warp threads KF are the warp thread guard 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 slats LA arrive on slat support rails 12 on the dismantling side.
  • the strands LI are lined up on rails 13 and manually or automatically shifted to a separation stage on them. Then the strands LI are individually brought into their retracted position and, after they have been drawn in, distributed to the corresponding mounting rails 14 on the dismantling side. The reed will also be gradually moved past the pull-in needle 7, the corresponding sheet gap being opened for the pull-in. After it has been drawn in, the sheet is also on the dismantling side. A part of the reed WB can be seen to the right of the mounting rails 14. 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 fastened thereon, the support rails 14 and a holder for the reed into the base frame 1 in the position shown and, after being pulled in, carries the dishes with the warp threads KF drawn in.
  • the warp beam carriage 2 with the warp beam 3 is located directly in front of the dishwashing carriage 15. Now the dishes are reloaded from the dishwashing carriage 15 onto the warp beam carriage 2 by means of the lifting device 4, which then carries the warp beam 3 and the drawn-in dishes and to the relevant weaving machine or can be moved to an interim storage facility.
  • the functions described are distributed over several modules, which represent practically autonomous machines that are controlled by the common control computer.
  • the cross-connections between the individual modules run via this higher-level control computer and there are no direct cross-connections between the individual modules.
  • the main modules of the drawing-in machine which have already been mentioned are themselves modular again and generally consist of sub-modules.
  • This modular structure which is described in CH-A-679 871, can be seen particularly well from the illustration in FIG. 2 shows the base frame 1, the warp beam carriage 2 with the warp beam 3, the lifting device 4 and the thread frame 5, which are coupled together with the warp beam carriage 2, the yarn module, the slat module, the heddle module, the sheet module, the operating station with the Screen 8, the feed module, the control box 9, the sub-module stranding magazine, the sub-module lamella magazine, and the crockery trolley 15 with the lamella support rails 12 and the support rails 14 for the strands.
  • the sub-module "strand positioning" essentially contains two endless transport means provided with strand holders, which are arranged in two transport planes formed by corresponding plates 20.
  • the transport means are designed like a belt, belt or chain; preferably a chain is used 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 engages with threaded locks mounted on the plates 20.
  • the transfer of the strands to the sub-module "strand positioning" takes place at the points 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 to the thread feed position by the chain 21, 22 rotating counterclockwise and driven intermittently by a stepper motor.
  • 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 movement path with the straight line FE.
  • the reference numeral 18 designates a channel-like guidance of the pull-in needle 7 (see also the already mentioned WO-A-92/05303).
  • 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. When the height positioning means HP are actuated, 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 formed by a pneumatic cylinder 30 and the upper drive rollers 27 are on a support arm 31 mounted, which in turn is carried by a carrier shaft 32. A total of two such carrier shafts 32 are provided.
  • the side positioning means SP are mounted on a support 33 which is also fastened to the support shaft 32 carrying the support arm 31 and in particular comprise a transverse guide 34 for the strands and a positioning lever 35 for their exact lateral positioning.
  • the heddle 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 heddle support rail.
  • the direction of transfer is indicated by an arrow B.
  • This transfer takes place by means of pneumatically arranged in the area of the two plates 20 driven ejection cylinders 39, which are selectively controllable as a function of the distribution of the strands on the individual heald support rails, which distribution is predetermined by the pattern to be produced on the weaving machine, in pairs the upper and lower ejection cylinders 39 of each strand.
  • the mounting rails When processing strands with open end loops, the mounting rails are loaded with the strands in their position in the heald frames; The heald frames are thus mounted on the crockery trolley 15 (FIG. 1), the side frame being removed on the loading side. The heald is transferred by the ejection cylinder 39 directly onto the heald support rails mounted in the heald frames.
  • the transfer station TS is indicated schematically in FIG. 3 and will now be explained in more detail with reference to FIGS. 5 to 8.
  • 5 shows a top view of an essential part of the transfer station
  • FIG. 6 shows a front view in the direction of arrow 6 of FIG. 5
  • FIG. 7 shows a side view from the left
  • FIG. 8 shows a detail of FIG. 7.
  • the transfer station TS is arranged in the immediate vicinity of the ejection cylinder 39, the latter forming part of the transfer station.
  • the strands LI are secured in this area, where they have left the guide rails 26, by spring-mounted pivot levers 16 against falling off the pins 24.
  • the pivot levers 16 press the strands LI onto the pins 24 and are pivoted counterclockwise when the ejection cylinders 39 are extended, so that the strands can be stripped from the pins 24 in the direction of arrow B.
  • the transfer station TS contains, in addition to the ejection cylinders 39, a lock having two controlled clamps K 1 and K 2 , adapter rails 17 held by the clamps, and slides 19 for conveying the strands on the adapter rails 17 through the lock.
  • the adapter rails 17, which are used for guiding, holding and temporarily storing the strands stripped from the pins 24, are optimized in terms of shape so that the strands can be taken over without any problems.
  • the adapter rails 17 run out at their inlet end on the left in FIG. 7 into a nose 36 which is slightly inclined downwards and overlaps with the tips of the pins 24 and whose upper edge lies just below the plane of the pins. In this way, the stranded wire LI stripped from its pin 24 can slide onto the adapter rail 17 without any problems.
  • the end of the adapter rail 17 which runs to the right in FIG. 7 has a gradation, the upper edge of the adapter rails ending in a web 37 projecting above this gradation.
  • a transition spring 38 is used, by means of which the adapter rail 17 is connected to the heddle support rail 14 (FIGS. 1, 2).
  • the transition spring 38 which establishes the connection between the adapter rail 17 and the heddle support rail 14 and guides the latter laterally, is designed as a replacement part which can be replaced by hand in the event of a malfunction without tools.
  • the adapter rail 17 also has two pairs of center holes, which are provided for the engagement of positioning bolts 40 of the two terminals K 1 and K 2 .
  • the two clamps K 1 and K 2 are constructed identically and each consist of a stop block 41 with a plurality of substantially rectangular, flat stop teeth 42 and a clamping rake 44 with clamping teeth 45 guided in a slot-like recess 43 of the stop teeth 42.
  • a stop block 41 serves to position the adapter rails 17 relative to the pins 24, the stop teeth 42 positioning the adapter rails 17 laterally and the positioning bolts 40 vertically, in the longitudinal direction of the strands, and in the longitudinal direction of the rails.
  • the clamping computer 44 is used to fix the adapter rails 17 in the position mentioned.
  • Stop block 41 and clamping rake 44 run into each other in opposite directions, the drive being effected by electro-pneumatically controlled pneumatic cylinders.
  • 5 and 6 show the lock on the upper plate 20 (Fig. 4) in the open state in which both terminals K 1 and K 2 are open. This state of the was chosen because of the better clarity, does not occur in practical operation because only one of the two terminals K 1 or K 2 can be open.
  • An identical lock is arranged on the lower plate 20 as a mirror image of the lock shown.
  • the stop block 41 is moved to the left until the positioning bolts 40 dip into the centering bores of the adapter rails 17 and stop the stop teeth 42 on the adapter rails 17.
  • the clamping rake is moved to the right until the clamping teeth 45 meet the adapter rails 17 and clamp them on the stop teeth 42.
  • the stroke of the ejection cylinders 39 is dimensioned such that they push the strand LI to be transferred into the space between the first clamp K 1 and the second clamp K 2 .
  • the strands are transported further through the second clamp K 2 to the heald support rail by the slide 19 already mentioned, which additionally serve as a retainer for the strands already in the space between the two clamps and prevent them from sliding back through the open first clamp K 1 to back up.
  • a slide carriage 47 which is pneumatically displaceable on guides parallel to the adapter rails 17, is arranged for each Adapter rail 17 carries an L-shaped slider 19 projecting downwards.
  • the slide 19, in particular its horizontal leg, runs parallel to the associated adapter rail 17 at a small lateral distance from it (see FIG. 8).
  • a sawtooth-shaped flap 48 is pivotally mounted in the horizontal leg of the slide 19, which is pressed by a spring 49 away from the leg into the normal position shown in full lines, in which the tip of the flap 48 is in the plane of FIG Adapter rail 17 protrudes.
  • the steeper flank of the sawtooth-shaped flap 48 acting as a slide edge lies transversely to the adapter rail 17 and would move and move strands lined up on the adapter rail 17 when the slide 19 moves in the direction of arrow B in the direction of movement in front of the flap. If, on the other hand, a stranded wire is pushed onto the adapter rail 17 by the ejection cylinder 39 (FIG.
  • the number of strands temporarily stored on the adapter rails is determined in the module computer of the strand module on the basis of the working strokes of the individual ejection cylinders 39. If the terminal reversal takes place according to case 2, in which an idle stroke of the drawing-in machine has to be switched on, the module computer of the strand module delivers a corresponding signal to the control computer, which in turn controls the module computers of the affected modules, in particular the feed module.
  • the heddle support rails 14 can in principle be held in the crockery trolley 15 using a device of the type described in EP-A-0 496 232 for handling slats.
  • the holder is held by holding bolts, which are temporarily removed from a plurality of strands to pass a stack. If the mutual spacing of these retaining bolts is chosen to be sufficiently large, then the time interval between the individual manipulations to be carried out by hand becomes so large that the retaining bolts are pulled out and reinserted can be easily performed by a single operator.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Windings For Motors And Generators (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP94112607A 1993-09-13 1994-08-12 Vorrichtung zur selektiven Übergabe von Litzen Expired - Lifetime EP0646669B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02753/93A CH687542A5 (de) 1993-09-13 1993-09-13 Vorrichtung zur selektiven Uebergabe von Litzen.
CH2753/93 1993-09-13

Publications (2)

Publication Number Publication Date
EP0646669A1 EP0646669A1 (de) 1995-04-05
EP0646669B1 true EP0646669B1 (de) 1997-07-23

Family

ID=4240841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112607A Expired - Lifetime EP0646669B1 (de) 1993-09-13 1994-08-12 Vorrichtung zur selektiven Übergabe von Litzen

Country Status (14)

Country Link
US (1) US5448812A (cs)
EP (1) EP0646669B1 (cs)
JP (1) JPH07197346A (cs)
KR (1) KR950008764A (cs)
AT (1) ATE155831T1 (cs)
AU (1) AU675156B2 (cs)
CA (1) CA2130313A1 (cs)
CH (1) CH687542A5 (cs)
CZ (1) CZ221294A3 (cs)
DE (1) DE59403444D1 (cs)
ES (1) ES2104237T3 (cs)
RU (1) RU94033110A (cs)
SK (1) SK109594A3 (cs)
TW (1) TW320660B (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687714A5 (de) * 1993-09-13 1997-01-31 Stsubli Ag Zweigwerk Sargans Vorrichtung zur Handhabung von Litzen fuer Kettfadeneinziehmaschinen.
CH687881A5 (de) * 1993-09-13 1997-03-14 Staeubli Ag Zweigwerk Sargans Litzensepariervorrichtung fuer Kettfadeneinziehmaschinen.
DE59806070D1 (de) * 1997-09-08 2002-11-28 Staeubli Ag Pfaeffikon Pfaeffi Vorrichtung zur übergabe von geschirrelementen einer webmaschine
CN103924365B (zh) * 2014-04-21 2015-04-22 深圳市海弘装备技术有限公司 一种用于综丝转移的装置和方法
ES2913787T3 (es) * 2019-06-17 2022-06-06 Groz Beckert Kg Procedimiento, dispositivo, carro desplazable y máquina de remetido
EP3754070B1 (de) 2019-06-17 2023-06-07 Groz-Beckert KG Vorrichtung und verfahren zur handhabung von webgeschirrelementen
ES2913789T3 (es) * 2019-06-19 2022-06-06 Groz Beckert Kg Dispositivo y procedimiento para manipular accesorios de tejeduría

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3210921C1 (de) * 1982-03-25 1983-09-29 Lindauer Dornier Gmbh, 8990 Lindau Vorrichtung zum Einziehen von Kettfaeden in bereitgestellte Weblitzen und Lamellen
EP0104298B1 (de) * 1982-09-24 1987-04-01 GebràœDer Sulzer Aktiengesellschaft Vorrichtung zur logistischen Bedienung von Textilmaschinen
JPS6420359A (en) * 1987-07-10 1989-01-24 Teijin Seiki Co Ltd Heald transfer apparatus
JPS6420358A (en) * 1987-07-10 1989-01-24 Teijin Seiki Co Ltd Heald magazine
DE59006019D1 (de) * 1989-10-03 1994-07-14 Rueti Ag Maschf Verfahren und Einrichtung zur Behebung von Kettfadenbrüchen in einer Webmaschine.
CH679871A5 (cs) * 1989-10-04 1992-04-30 Zellweger Uster Ag
US5274894A (en) * 1989-10-04 1994-01-04 Zellweger Uster Ag Machine for the automatic drawing-in of warp threads
CH680933A5 (cs) * 1990-03-06 1992-12-15 Zellweger Uster Ag
CH682577A5 (de) * 1990-09-17 1993-10-15 Zellweger Uster Ag Vorrichtung zur Handhabung von Litzen oder Lamellen in einer Kettfadeneinziehmaschine.
CH682928A5 (de) * 1991-01-22 1993-12-15 Zellweger Uster Ag Vorrichtung zur Handhabung von Lamellen in einer Kettfadeneinziehmaschine.
TW216808B (cs) * 1991-10-24 1993-12-01 Teijin Ltd
CH687714A5 (de) * 1993-09-13 1997-01-31 Stsubli Ag Zweigwerk Sargans Vorrichtung zur Handhabung von Litzen fuer Kettfadeneinziehmaschinen.
CH687881A5 (de) * 1993-09-13 1997-03-14 Staeubli Ag Zweigwerk Sargans Litzensepariervorrichtung fuer Kettfadeneinziehmaschinen.

Also Published As

Publication number Publication date
AU7288494A (en) 1995-03-23
TW320660B (cs) 1997-11-21
RU94033110A (ru) 1996-07-10
ES2104237T3 (es) 1997-10-01
CH687542A5 (de) 1996-12-31
ATE155831T1 (de) 1997-08-15
SK109594A3 (en) 1995-05-10
US5448812A (en) 1995-09-12
AU675156B2 (en) 1997-01-23
EP0646669A1 (de) 1995-04-05
JPH07197346A (ja) 1995-08-01
CZ221294A3 (en) 1995-04-12
CA2130313A1 (en) 1995-03-14
DE59403444D1 (de) 1997-09-04
KR950008764A (ko) 1995-04-19

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