EP1377513B1 - Fadendetektor - Google Patents
Fadendetektor Download PDFInfo
- Publication number
- EP1377513B1 EP1377513B1 EP02732552A EP02732552A EP1377513B1 EP 1377513 B1 EP1377513 B1 EP 1377513B1 EP 02732552 A EP02732552 A EP 02732552A EP 02732552 A EP02732552 A EP 02732552A EP 1377513 B1 EP1377513 B1 EP 1377513B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- deflector
- detector
- deflectors
- path
- 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
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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
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/40—Applications of tension indicators
-
- 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 thread detector according to the preamble of patent claim 1.
- An example of a place of use of such a thread detector is the thread path between a weft thread delivery device and the shed of a weaving machine.
- For Control operations of all kinds become information about the current Thread tension of the resting or running thread and additional weft monitor information needed over thread running / stopping conditions.
- DE-A-100 00 232 relates to a measuring device for thread tension measurement by a thread.
- the invention has for its object a thread detector of the aforementioned Way of creating the information required in other ways and determined better adapted to the respective conditions, with less mechanical Derives load for the thread, inexpensive and reliable to manufacture and a very wide range of applications (for different types of thread processing Systems or weaving machines and delivery devices and all used in practice Thread qualities) is able to cover.
- each deflector feels the thread with regard to a special requirement and for the task assigned to him (thread tension measurement and / or running / stopping conditions) optimally. For this reason alone, every deflector can with a relatively simple converter device tailored to the respective function cooperate. If one function fails, the other function remains unaffected receive. Since the two deflectors divide the thread deflection among themselves and like a single positive thread guide, a kind of two-dimensional thread guide, act, the mechanical load on the thread is moderate and sufficient an overall deflection that is significantly less than the sum of the deflections in two completely separate devices for one function each.
- each deflector takes just as much of that Thread loading as appropriate for the function assigned to it.
- the two deflectors are expedient in the thread path directly and without contact adjacent, so that generated on at least one deflection surface from the load Force as effective as possible directly on the deflecting surface of the other deflector becomes.
- the mutual proximity of the deflectors has the advantage that they act together as a single two-dimensional thread guide and the current one Stabilize the thread effectively, which is favorable for the scanning accuracy.
- the angle between the deflection surfaces should be at least essentially 90 °. This ensures clean guidance of the running thread.
- the degree of displacement determines the deflection of the thread in the thread detector.
- the deflecting surfaces are preferably both Deflectors offset from the straight thread path, so that the thread each exerts the necessary loads on both deflection surfaces for scanning.
- An inclined angle at least of the deflection surface of a deflector is particularly important in relation to a plane that is defined by the fictitious straight thread path and the actual thread path is defined.
- This inclination is set so that from the Thread loading on the inclined deflection surface is a sliding force component to the deflecting surface of the other deflector is generated. This will make the deflection surface of the other deflector not only with the reaction force from the deflection of the Thread, which can be low there, but also due to the sliding force component applied.
- This arrangement allows a relatively small overall Set the total deflection angle for the thread, which is gentle on the thread.
- An inclination angle of about 70 ° with respect to the plane mentioned is for one Deflection surface cheap. With a 90 ° crossing of both deflectors, this is then Oblique angle with respect to the same plane of the other deflector is approximately 20 °. This Angles can be varied.
- the deflector, its deflecting surface, is expedient forms the inclined angle of approximately 70 ° with the plane for thread tension measurement responsible. Because the thread tension can be more sensitive determine if the thread is a significant part of the resulting from the thread tension Exerts a load on this deflector.
- the deflectors which operate separately, are each arranged on a transducer element, that is stationary supported. It is useful to use the deflectors with their To attach the foot area to the transducer element, so that the loads on the thread be transmitted with a priced lever arm and unadulterated. Especially Piezoelectric or photo-elastic transducer elements are expedient because these Deliver meaningful useful signals with moderate control effort. alternative could also use inductive, triboelectric or other transducer elements or strain gauges directly on the deflectors.
- the construction effort remains low if every piezoelectric transducer element in a film chip is integrated, which is also at least part of the evaluation circuit contains.
- a fluoroscopic photo-elastic transducer element changes its optical properties depending on its deformation or its internal state of tension.
- the intensity of the emerging light varies within a wide range and delivers meaningful signals that are easy to pick up and optoelectronic are evaluable.
- the photoelastic transducer element is expediently a plate made of a transparent one Plastic such as polycarbonate (or an optical glass) that is at least one-sided, preferably both ends, clamped and almost exclusively from the deflector Torsion is applied.
- This material is largely in a stress-free state isotropic and becomes with increasing internal tension, e.g. a torsional stress, anisotropic. This change is due to the optoelectronic scanning device followed and as an output signal, for example, representative of the thread tension delivered, and without any significant reinforcement or conditioning effort.
- the optical axis of the scanner should be the plate penetrate perpendicular to their surfaces.
- isochromatic light e.g. Red light from an LED
- isochromatic light becomes the photo-elastic element X-rayed
- polarizing elements on the input and output sides with one another crossing polarization axes are used to set a position in which almost no light is emitted when the element is not under load and with increasing internal tension the intensity of the emerging light after a Function increases, which even linearizes with simple control technology can be.
- the variation in the intensity of the emerging light can e.g. with a Photo transistor can be tapped.
- An embodiment of the thread detector with a base body is structurally simple, a storage for the converter devices and the deflectors as well as the thread guides contains.
- the deflectors should cross each other without contact.
- the Storage advantageously has an inclined position about the thread axis, so that the load on the thread on the at least one deflector increased contact pressure against the deflection surface of the other deflector and the response behavior of the thread detector increases, so that overall a small deflection angle in Thread detector can be selected.
- the storage is even expediently adjustable in order to adapt to the respective To be able to carry out working conditions or thread qualities.
- a thread detector F in FIG. 1 is intended for use in thread processing systems, for example for use in the thread path between a weft thread delivery device and a weaving machine. With the thread detector F you can choose here the thread tension measured and / or the thread running / stopping condition of the Weft thread to be monitored. Each function is carried out independently. If necessary, one of the two functions can remain unused without the other Impair function. Of course, both functions can be permanent be carried out side by side.
- the thread detector F in FIG. 1 has a base body 1, in which in FIG molded receptacles 3 a storage 2 for two transducer assemblies W mounted is.
- a bridge-like holder 7 supports two thread guides 8 which pass through the thread path define the thread detector F. 4 with a surface of the holder 7 is designated, which are assumed to be a horizontal reference plane for easier explanation can.
- a transducer element 20 is stationary, e.g. on piezoelectric transducer element or a photoelastic transducer element.
- a first deflector D1 and a second deflector D2 respectively cantilevered on one side, e.g. in the form of a round bar or tube 5, for example made of ceramic material.
- the transducer elements 20 are connected to one electronic evaluation circuit 6 connected, from the output signals i1, i2 to be delivered.
- the evaluation circuit 6 can be accommodated in the base body 1.
- the transducer elements 20 are integrated in film chips, which at least already contain part of the evaluation circuit.
- the two deflectors D1, D2 are arranged one behind the other in the thread path, without each other to touch.
- Each deflector D1, D2 forms a deflecting surface 9, 10 for the supported by the thread guide 8 thread Y.
- the deflecting surfaces 9, 10 close with each other an angle ⁇ , which is illustrated by the bearing 2, e.g. one Angle of about 90 °.
- the thread Y is between the thread guides 8 on both deflection surfaces 9, 10 deflected.
- the second Deflector D2 can be oriented vertically to surface 4 or, as shown, with a Crossing angle ⁇ of approximately 90 ° to the first deflector D1 also with the bearing 2 in Fig. 1 to the top right.
- the bank angle ⁇ can for example by an adjusting device 22 in the base body 1 on the bearing 2 be changed as needed.
- the deflector D1 with its transducer element W is useful for measuring the Thread tension.
- Deflector D2 on the other hand, is used to monitor the faderil / stop conditions.
- the first and second deflection surfaces 9, 10 share the overall deflection of thread.
- the deflection surface 9 are more strongly impacted by the thread Y than the deflecting surface 10.
- the first and second deflecting surfaces 9, 10 on both deflectors D1, D2 compared to the fictitious stretched thread path defined by the thread guide 8 offset, so that in the angular bend between the two deflection surfaces 9, 10 guided and deflected at both deflecting surfaces 9, 10 from its Load on the deflectors D1, D2 at least in the direction of orientation first deflection surface 9 directed sliding force component K to the other deflection surface 10 developed that increases the contact pressure on the other deflecting surface 10.
- On thread section 11 of the thread Y extending to the first deflection surface 9 2 upwards and slightly to the left, is deflected at the first deflection surface 9, then changes over to the second deflection surface 10.
- the thread Y is on the deflected the second deflecting surface 10 and against it also with the component K pressed, and runs with a running section 12 to the other thread guide 8th.
- the second deflection surface 10 is vertically aligned with that through the thread guide 8 defined stretched thread path arranged.
- the first deflection surface 9 is below the tilt angle ⁇ tilted to the right relative to the plane E, so that the deflected tapering thread section 11 from the load on the first deflection surface 9 developed a rightward sliding force component K, which additionally presses against the second deflection surface 10.
- the two deflectors D1, D2 are at an intersection angle with one another of about 90 °.
- the first deflector D1 is with the bank angle ⁇ (for example 70 °) slanted to the right relative to plane E, so that the tapering thread section 11 on the first deflecting surface 9 the sliding force component K developed to the right to the second deflection surface 10 and the expiring Thread section 12 presses against the second deflection surface 10.
- the running thread section 12 is also due to the oblique position of the second deflector D2 redirected this.
- the deflector D1 is a photo-elastic one Transducer element 20 indicated.
- This has the shape of a thin, elongated one Plate 13 and consists of photo-elastic material, such as plastic or optical glass, which, for example, largely in a voltage-free state is isotropic. With increasing internal tension, this material changes its optical Properties e.g. towards anisotropic, what about using fluoroscopy, for example isochromatic light can be converted into a clear output signal.
- the intensity of the emerging light changes and can be scanned to initially towards the tension condition and thus indirectly towards the thread tension conclude.
- the plate 13 is clamped stationary at 14 at both ends, for example.
- the Deflector D1 is attached to the plate 13 and cantilevered freely on one side, so that the Thread Y applied to him in the plate 13 produces pure torsion, i.e. inner Torsional stresses.
- an optoelectronic scanning device T is provided with which the Change in the optical properties of the plate 13 with fluoroscopy (or reflection) is tapped.
- the optoelectronic scanning device T has an optical one Axis 21 which penetrates the plate 13 approximately perpendicular to its surfaces 17.
- a light source 15 in the optical axis 21 e.g. placed a red light LED which e.g. emits at least quasi-isochromatic light
- a first polarizing element 16 In front of the surface 17 of the plate 13 is a first polarizing element 16 with one in the Placed direction set linear polarization axis.
- a second polarizing element 18 placed so that its linear polarization axis is the polarization axis of the first polarizing element 16 crosses.
- a Receiver 19 placed, for example a photo transistor.
- the intensity of the emerging light grows according to a mathematical Function, e.g. with the square of the torque applied by deflector D1, what the receiver 19 registers.
- an output signal e.g. i1, representative of the current thread tension supplied.
- the two deflectors D1, D2 are included straight deflection surfaces formed transversely to the thread axis.
- the deflection surfaces could also be concave or convex curved.
- the two deflectors must also be used D1, D2 should not be immediately adjacent. There could be a small gap be set, or vice versa even a spatial overlap between the two Deflectors, e.g. through corresponding cutouts in the deflectors so that the whose two deflection surfaces 9, 10 are moved closer together than shown.
- the angle included between the two deflecting surfaces 9, 10 could also be used also be significantly smaller than 90 ° or larger than 90 °, but not larger than 180 °.
- a total deflection angle of ⁇ 15 ° for the thread is sufficient for most thread qualities to precisely measure the thread tension and the thread running / stopping conditions to be able to monitor.
- Each function can be switched on or off individually become. The failure of one function affects the other function Not.
Description
- Fig. 1
- eine Perspektivansicht eines Fadendetektors,
- Fig. 2, 3, 4
- drei Schemadarstellungen von Detailvariationen zum Fadendetektor der Fig. 1, und
- Fig. 5
- einer weitere Detailvariation in perspektivischer Schemaansicht.
Claims (14)
- Fadendetektor für Fadenlauf-/Stoppkonditionen und/oder die Fadenspannung mit einer Deflektoranordnung zur Fadenumlenkung, wenigstens einer signalerzeugenden, von der Deflektoranordnung mechanisch beaufschlagbaren, auf vom Faden ausgeübte Belastungen ansprechenden Wandlereinrichtung (W), und wenigstens einer elektronischen Auswerteschaltung (6) zum Ableiten von Ausgangssignalen (i1, i2), wobei stromauf und stromab der Deflektoranordnung den Fadenweg definierende, stationäre Fadenführer (8) vorgesehen sind, dadurch gekennzeichnet, dass die Deflektoranordnung im Fadenweg hintereinander einen ersten Deflektor (D1) und einen zweiten Deflektor (D2) aufweist, denen jeweils eine Wandlereinrichtung (W) zugeordnet ist, und dass die ersten und zweiten Deflektoren (D1, D2) erste und zweite, jeweils quer zur Fadenachse orientierte Umlenkflächen (9, 10) aufweisen, die miteinander - in Richtung der Fadenachse gesehen - einen Winkel (β) < 180° einschließen und die Fadenumlenkung untereinander aufteilen.
- Fadendetektor nach Anspruch 1, dadurch gekennzeichnet, dass die ersten und zweiten Deflektoren (D1, D2) im Fadenweg unmittelbar und kontaktfrei benachbart sind.
- Fadendetektor nach Anspruch 1, dadurch gekennzeichnet, dass der Winkel (β) zumindest im Wesentlichen 90° beträgt.
- Fadendetektor nach Anspruch 1, dadurch gekennzeichnet, dass die Umlenkflächen (9, 10) jeweils in Richtung der Orientierung der anderen Umlenkfläche quer zur Fadenachse gegenüber einem fiktiven, gestreckten Fadenweg zwischen den Fadenführern (8) versetzt sind.
- Fadendetektor nach Anspruch 1, dadurch gekennzeichnet, dass der fiktive gestreckte Fadenweg zwischen den Fadenführem (8) und der über die Deflektoren (D1, D2) umgelenkte tatsächliche Fadenweg miteinander im Wesentlichen eine Ebene (E) definieren, und dass zumindest die Umlenkfläche (9) eines Deflektors (D1) in ihrer Orientierung quer zur Fadenachse relativ zu dieser Ebene (E) mit einem Schräglagewinkel (χ) derart schräg angeordnet ist, dass die Fadenbelastung an dieser Umlenkfläche (9) eine Abgleitkraftkomponente (K) zur Umlenkfläche (10) des anderen Deflektors (D2) generiert.
- Fadendetektor nach Anspruch 5, dadurch gekennzeichnet, dass der Schräglagewinkel (χ) des einen Deflektors (D1) bei etwa 70° liegt, und, vorzugsweise der andere Deflektor (D2) mit seiner Umlenkfläche (10) einen Schräglagewinkel von ca. 20° mit der Ebene (E) einschließt.
- Fadendetektor nach Anspruch 1, dadurch gekennzeichnet, dass beide Deflektoren (D1, D2) runde, einendig gelagerte Stäbe oder Rohre (5) mit in etwa gleichen Außendurchmessern sind, vorzugsweise aus Keramikmaterial.
- Fadendetektor nach Anspruch 1, dadurch gekennzeichnet, dass jeder Deflektor (D1, D2) an einem stationär angeordneten Wandlerelement (20) seiner Wandlereinrichtung (W) angebracht ist.
- Fadendetektor nach Anspruch 8, gekennzeichnet durch ein piezoelektrisches oder fotoelastisches Wandlerelement (20).
- Fadendetektor nach Anspruch 9, dadurch gekennzeichnet, dass das piezoelektrische Wandlerelement (20) in einen Filmchip integriert ist.
- Fadendetektor nach Anspruch 9, dadurch gekennzeichnet, dass das fotoelastische Wandlerelement (20) plattenförmig aus einem transparenten Kunststoff wie Polycarbonat ausgebildet und zumindest einseitig (14) eingespannt und vom Deflektor (D1) auf Torsion beaufschlagbar ist, und dass für den inneren Spannungszustand des Wandlerelements eine optoelektronische Abtasteinrichtung (T) vorgesehen ist, deren optische Achse (21) das Wandlerelement (20) in etwa senkrecht zur Plattenoberfläche (17) durchsetzt.
- Fadendetektor nach Anspruch 11, dadurch gekennzeichnet, dass die optoelektronische Abtasteinrichtung (T) eine Lichtquelle (15), vorzugsweise für isochromatisches Licht oder Rotlicht, Polarisierelemente (16, 18) mit einander kreuzenden Polarisierungsachsen beiderseits des Wandlerelements (20), und ein Fotoelement als Empfänger (19) aufweist.
- Fadendetektor nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in einem Grundkörper (1) eine Lagerung (2) mit zueinander unter etwa 90° geneigten Aufnahmen (3) für die zwei Wandlereinrichtungen (W) vorgesehen ist, dass zwei den Fadenweg definierende Fadenführer (8) am Grundkörper (1) angebracht sind, dass sich die beiden Deflektoren (D1, D2) von der Lagerung (2) ausgehend quer durch den Fadenweg erstrecken und einander unter einem Winkel < 180°, vorzugsweise von etwa 90°, kreuzen, und dass die Lagerung (2) um die Fadenachse eine Schräglage relativ zu einer Ebene (E) einnimmt, die definiert ist durch den fiktiven gestreckten Fadenweg zwischen den Fadenführern und dem tatsächlichen umgelenkten Fadenweg über beide Deflektoren (D1, D2).
- Fadendetektor nach Anspruch 13, dadurch gekennzeichnet, dass eine Einstellvorrichtung (22) für die Schräglage des Fadendetektors (F), vorzugsweise der Lagerung (2) im Grundkörper (1) vorgesehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10117879 | 2001-04-10 | ||
DE10117879A DE10117879A1 (de) | 2001-04-10 | 2001-04-10 | Fadendetektor |
PCT/EP2002/003692 WO2002083539A1 (de) | 2001-04-10 | 2002-04-03 | Fadendetektor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1377513A1 EP1377513A1 (de) | 2004-01-07 |
EP1377513B1 true EP1377513B1 (de) | 2004-09-22 |
Family
ID=7681088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02732552A Expired - Lifetime EP1377513B1 (de) | 2001-04-10 | 2002-04-03 | Fadendetektor |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040188232A1 (de) |
EP (1) | EP1377513B1 (de) |
CN (1) | CN1274573C (de) |
AT (1) | ATE276960T1 (de) |
DE (2) | DE10117879A1 (de) |
WO (1) | WO2002083539A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10333202A1 (de) * | 2003-07-22 | 2005-03-03 | Hottinger Baldwin Messtechnik Gmbh | Gehäuse für einen Fadenspannungsaufnehmer |
DE102005059028A1 (de) * | 2005-12-10 | 2007-06-14 | Saurer Gmbh & Co. Kg | Fadenführer |
DE102011112012A1 (de) * | 2011-08-30 | 2013-02-28 | Oerlikon Textile Gmbh & Co. Kg | Fadenzugkraftsensor |
JP2013049932A (ja) * | 2011-08-31 | 2013-03-14 | Murata Mach Ltd | 紡績機 |
EP3165490A1 (de) * | 2015-11-09 | 2017-05-10 | Eltex of Sweden AB | Vorrichtung zur übertragung einer mechanischen kraft in ein elektrisches signal |
CN210973376U (zh) * | 2019-08-29 | 2020-07-10 | 中山市普洛斯智能设备科技有限公司 | 张力检测装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2109605A (en) * | 1937-05-19 | 1938-03-01 | Wachsman Michael | Stop mechanism for knitting machines |
US2744174A (en) * | 1953-02-17 | 1956-05-01 | Triplite Ltd | Yarn detecting mechanism for textile machine stop motions |
US3300161A (en) * | 1963-09-21 | 1967-01-24 | Frau Sigrid Heim | Control device |
US3613065A (en) * | 1970-03-03 | 1971-10-12 | Lindly & Co Inc | Apparatus utilizing a vibratable member for detecting sustained tension in a running length or strand |
US3789631A (en) * | 1972-02-08 | 1974-02-05 | Stop Motion Devices Corp | Yarn tension control device |
US3772487A (en) * | 1972-08-04 | 1973-11-13 | N Levin | Stop motion apparatus for knitting machines |
US3888095A (en) * | 1973-03-16 | 1975-06-10 | Morris Philip | Stop motion assembly and method |
CH622561A5 (de) * | 1977-11-01 | 1981-04-15 | Loepfe Ag Geb | |
JPS6023065B2 (ja) * | 1978-02-16 | 1985-06-05 | 東レ株式会社 | 糸条巻取装置 |
CH643614A5 (de) * | 1980-04-01 | 1984-06-15 | Loepfe Ag Geb | Elektronischer schussfadenwaechter. |
US4551591A (en) * | 1984-06-18 | 1985-11-05 | Jones Robert E | Stop motion switch |
IT1227077B (it) * | 1988-09-08 | 1991-03-14 | Vamatex Spa | Sistema per controllare la tensione della trama alimentata ad un telaio tessile senza navette. |
DE4131656A1 (de) * | 1991-09-23 | 1993-03-25 | Iro Ab | Verfahren und webmaschine |
DE4306911C1 (de) * | 1993-03-05 | 1993-12-23 | Dornier Gmbh Lindauer | Schußfadenbremse mit steuerbarer Bremswirkung |
US5476122A (en) * | 1993-03-05 | 1995-12-19 | Lindauer Dornier Gesellschaft Mbh | Weft thread brake responsive to yarn characteristics in a loom |
DE19537215C2 (de) * | 1995-10-06 | 1999-09-02 | Memminger Iro Gmbh | Fadenliefergerät für elastische Garne |
DE10000232A1 (de) * | 1999-01-19 | 2000-07-20 | Barmag Barmer Maschf | Meßeinrichtung zur Fadenspannungsmessung |
-
2001
- 2001-04-10 DE DE10117879A patent/DE10117879A1/de not_active Withdrawn
-
2002
- 2002-04-03 AT AT02732552T patent/ATE276960T1/de not_active IP Right Cessation
- 2002-04-03 US US10/474,866 patent/US20040188232A1/en not_active Abandoned
- 2002-04-03 WO PCT/EP2002/003692 patent/WO2002083539A1/de not_active Application Discontinuation
- 2002-04-03 CN CNB028102851A patent/CN1274573C/zh not_active Expired - Fee Related
- 2002-04-03 DE DE50201115T patent/DE50201115D1/de not_active Expired - Lifetime
- 2002-04-03 EP EP02732552A patent/EP1377513B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1511108A (zh) | 2004-07-07 |
US20040188232A1 (en) | 2004-09-30 |
ATE276960T1 (de) | 2004-10-15 |
DE10117879A1 (de) | 2002-10-17 |
DE50201115D1 (de) | 2004-10-28 |
EP1377513A1 (de) | 2004-01-07 |
CN1274573C (zh) | 2006-09-13 |
WO2002083539A1 (de) | 2002-10-24 |
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