EP1848847B1 - Support de cylindres superieurs pour bancs d'etirage dans des metiers a filer - Google Patents

Support de cylindres superieurs pour bancs d'etirage dans des metiers a filer Download PDF

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Publication number
EP1848847B1
EP1848847B1 EP05807852A EP05807852A EP1848847B1 EP 1848847 B1 EP1848847 B1 EP 1848847B1 EP 05807852 A EP05807852 A EP 05807852A EP 05807852 A EP05807852 A EP 05807852A EP 1848847 B1 EP1848847 B1 EP 1848847B1
Authority
EP
European Patent Office
Prior art keywords
rollers
apron
holding device
roller carrier
carrier according
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.)
Not-in-force
Application number
EP05807852A
Other languages
German (de)
English (en)
Other versions
EP1848847A1 (fr
Inventor
Josef Winter
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Oerlikon Textile Components GmbH
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 Oerlikon Textile Components GmbH filed Critical Oerlikon Textile Components GmbH
Publication of EP1848847A1 publication Critical patent/EP1848847A1/fr
Application granted granted Critical
Publication of EP1848847B1 publication Critical patent/EP1848847B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/44—Adjusting drafting elements, e.g. altering ratch
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/56—Supports for drafting elements
    • D01H5/565—Top roller arms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements

Definitions

  • the invention relates to a top roll carrier for drafting systems on spinning machines according to the preamble of claim 1.
  • Oberwalzenani are commonly used as a support and loading arm for upper roller pairs and with respect to the machine-mounted lower rollers withdrawn.
  • an elastic hollow body which is pneumatically or alternatively hydraulically pressurized.
  • the pressure acts on tappets via a bottom plate of the hollow body and acts on both the input and output rollers as well as the apron roller and the upper apron holder with a force which presses against the lower rollers and causes the upper rollers to act as pressure rollers.
  • German utility model G 92 14 598 U1 describes a top apron holder for spinning machine drafting systems with a Riemchen interview, which deflects the Oberriemchen and biases under the pressure of a spring.
  • the strap guide is held on a center piece of the upper strap holder.
  • the CH 656 647 A5 shows a Riemchenstreckwerk that is used on a spinning machine and having three each consisting of upper and lower rollers roller pairs.
  • the top rollers are supported in the top roller carrier, which is arranged pivotable about a pivot pin to the machine stand.
  • the box-shaped top roll carrier includes a guide assembly for the top roll center pins. To this engage in their length mid-range spring-loaded hold-down with which for all pairs of rollers about the same Spaltantigkraft to be achieved.
  • the Oberwalzentragzapfen are guided in guide slots of Oberwalzenmois.
  • the ever-occurring game between top rollers and leading edges precludes a precise adjustment of the terminal point and leads to wear problems.
  • the distance between the upper rollers with each other in the longitudinal direction of the Oberwalzenmois is not changeable for this reason. An adjustment of the field widths, as it is necessary when adapting to the respective fiber material to be processed, is not possible.
  • the holding device according to the invention which is movably connected to the upper roll carrier, unites the axle holders for the delivery roller and the apron roller in one component.
  • the position of the axle receptacles in the holding device and thus the position of the axes of the output roller and the apron roller to each other can be produced with high manufacturing accuracy. In this way, an extremely accurate positioning of the clamping points of Riemchenwalze and exit roller to achieve and maintain.
  • the parallelism of the delivery roller and apron roller is always guaranteed.
  • usual safety distances can be waived. Such usual safety distances are taken into account, for example, when setting the desired field width, because the achievable accuracy in the field width adjustment can only be insufficient.
  • the holding device according to the invention reduces the number of components for the holding device compared to conventional holding devices. To be able to act on the holding device with a force in the direction of the lower rollers, only a single common device, for example a spring device, is necessary. The application of force to the delivery roller and apron roller can be done separately from other top rollers such as the input roller. The cost incurred in a change in the significant field width adjustment between Riemchenwalze and input roller effort is low. The required effort inica.und assembly is reduced because fewer and simpler parts are needed.
  • the holding device comprises a top apron deflecting device, wherein the top apron deflecting device is designed as a wing, which terminates at the free end with a deflecting edge.
  • This further reduces the number of components on the top roll carrier.
  • the orientation of the top apron deflector to the apron roller is very precise and can not be adversely affected by the effect of assembly tolerances or the summation of manufacturing tolerances of multiple components.
  • the deflection can not be due to poor setting or heavy deformable fiber materials are deflected from the parallel alignment. Such a deflection would disadvantageously lead to number fluctuations or even to axially running straps.
  • the opening size remains the same.
  • the deflecting edge is designed as a chromed metal rail and the metal rail is attached to the wing, only little friction occurs during the deflection process, and the deflecting edge is subjected to only minimal wear. Due to the low-friction deflection edge, the loop slip is minimized.
  • Maintenance intervals can be extended.
  • the apron roller only needs to be removed rarely or not at all.
  • the holding device is assigned a Riemchenspanner, which is aligned axially parallel to the upper rollers and movable relative to the holding device.
  • This design allows easy flexible tensioning of the top aprons. An excellent Riemchenretemaschinen is guaranteed.
  • the required contact force can be easily applied. If the head part is designed as a separate component which can be displaced longitudinally relative to the holding device, the distribution of the compressive force on the apron roller and the output roller can be changed.
  • Both a head part which is designed as a pressure plate, over which an elastic hollow body is arranged, and wherein with Help the hollow body which is sufficient to generate the load pressure force pneumatically or hydraulically generated, as well as a head over the Oberwalzenisme a spring is arranged, by means of which the head part is acted upon with the force, allow a metered pressurization of the output roller and the Riemchenwalze with a compressive force.
  • the wear can be reduced, the service life increased and the maintenance intervals can be extended.
  • a common adjustable force application of the output roller and Riemchenwalze separately from other top rollers as the input roller is possible.
  • a holding device made of plastic can be produced particularly inexpensively, has little weight, is resistant to corrosion and meets the elasticity requirements imposed on the holding device.
  • Polyoxymethylene referred to as POM, is characterized by high hardness, stiffness and toughness and is particularly well suited for this application. If the plastic is electrically conductive, an uncomplicated dissipation of electrostatic charges is ensured. This avoids interference caused by electrostatic charge during spinning operation.
  • Fig. 1 a part of a Oberwalzentungs 1 is shown, which carries a holding device 2.
  • the holding device 2 has axle mounts 3, 4 for the axes 5, 6 of the Riemchenwalzencrues and the output roller pair on.
  • axle mounts 3, 4 are part of the one-piece holding device 2.
  • the holding device 2 consists of the elastic plastic POM. Due to the elasticity, the axles 5, 6 can be easily pressed into the axle receptacles 3, 4 during assembly. The axes 5, 6 are held securely in the snap connection.
  • the associated lower rollers 9, 10 are positioned so that their axes of rotation 11, 12 are offset from the axes of rotation 13, 14 of the output roller 8 and the Riemchenwalze 7.
  • the axis of rotation 11 of the lower roller 9 is in the representation of Fig. 1 not perpendicular under the axis of rotation 13 of the output roller 8, but slightly offset to the right.
  • the axis of rotation 12 of the lower roller 10 is offset somewhat to the left towards the axis of rotation 14 of the apron roller 7. If the Riemchenwalze 7 and the output roller 8 is pressurized and pressed against the lower rollers 9, 10, horizontal force components occur.
  • the horizontal force component acting on the output roller 8 is shown in FIG Fig. 1 directed to the left and is called curtain power.
  • the pressurization of the Riemchenwalze 7 and the output roller 8 is pneumatic.
  • the holding device 2 designed as a pressure plate 15 head portion is arranged, on which the bottom plate 16 of an elastic hollow body 17 rests.
  • the pressure plate 15 is displaceable relative to the holding device 2 in the longitudinal direction of the Oberwalzenitatis 1. If the pressure plate 15 in the representation of Fig. 1 shifted to the left, the pressure on the output roller 8 increases, and the pressure on the Riemchenwalze 7 is lower.
  • the pressure on the output roller 8 decreases, and the pressure on the apron roller 7 becomes larger. In this way, the pressure distribution on the Riemchenwalze 7 and the output roller 8 can be made variable.
  • the holding device 2 has a slot 18, the edges 19, 20 each extend on the radius R TR , which is struck around the pivot point of the Oberwalzenitatis 1.
  • a hollow bolt 21 is guided, which is connected by means of screws 22 fixed to the Oberwalzenitati 1. Due to the interaction of elongated hole 18 and hollow pin 21, the holding device 2, regardless of the altitude, which occupies the Oberwalzenmoi 1, be positioned.
  • the Metallic hollow pin 21 stiffens the U-shaped, downwardly open body of the Oberwalzenitatis first
  • the holding device 2 has a designed as a wing 23 Oberriemchen deflection device over which the Oberriemchen 24 is guided.
  • the free end of the blade 23 has a distance R from the axis of rotation 14 of the apron roller 7.
  • the distance R is, for example, in an embodiment for the processing of short staple fiber material 35 mm.
  • the free end forms the deflection edge 25 for the two Oberriemchen 24, 26 of the Riemchenwalzenploes.
  • the width of the blade 23 is tuned to the largest required spindle pitch. In the effective direction of the force by which the top aprons 24, 26 are tensioned, the wing 23 is very stiff.
  • the deflecting edge 25 can be moved at the free end of the wing 23 without much effort.
  • the opening dimension X can be easily adjusted for the required jaw widths.
  • the shape of the wing 23 is in the Figures 2 and 3 recognizable.
  • the position of the Oberriemchens 26 is in Fig. 2 indicated by dashed lines.
  • the wing 23 carries a nose 27, on which a piston 28 applies a bearing force.
  • the bearing force is given to the piston 28 of the bottom plate 16.
  • the piston 18 is movably guided in a bore 29 of the holding device 2.
  • Fig. 4 shows an alternative embodiment to that in the Figures 1-3
  • the wing 30 has a receptacle 31 for a chromed interchangeable metal rail 32.
  • the receptacle 31 is designed such that the metal rail 32 is alternatively positionable in two different positions.
  • Fig. 4 shows a first position of the metal rail 32, in which the distance R 1 of the axis of rotation 14 of the Riemchenwalze 7 results.
  • Fig. 4A shows a second position of the metal rail 32, in which the distance R 2 results.
  • the distance R 2 is smaller than the distance R 1 .
  • the position of the deflection edge 25 can be adapted to the respective production conditions by suitable selection of the metal rail 32 and / or by the choice of the position of the metal rail 32 in such a way that an optimal spinning geometry is ensured.
  • the position of the deflecting edge 25 can be selected so that a sufficient distance between the output roller 8 and upper apron 24 is ensured. A quality-affecting strip of Oberriemchens 24 on the output roller 8 is reliably avoided.
  • the chromed metal rail 32 is particularly resistant to wear and causes a low-friction deflection of Oberriemchen 24, 26. The slip and slippage of Oberriemchen 24, 26 is reduced.
  • the holding device 2 has between the wing 23 and the axle 3 a vertically oriented and downwardly open slot 33.
  • the slot 33 serves as a guide slot for the support shaft 34 of a Riemchenspanners 35.
  • On the support shaft 34 is on both sides depending on a guide element 36, 37 attached as in Fig. 2 shown.
  • the guide members 36, 37 hold the top aprons 24, 26 in the desired position and prevent their axial displacement.
  • the gap 38 between the wing 23 and underside of the holding device 2 is slightly smaller than the diameter of the support shaft 34.
  • a spring element 39 presses from below against the carrier axis 34.
  • the top aprons 24, 26 are tensioned by means of the carrier axis 34 with a selectable force.
  • the position of the tensioned upper apron 26 is in the illustration of Fig. 2 indicated by dashed lines.
  • the Oberriemchen 24 assumes a corresponding mirror image position on the left side of the holding device 2, but is in the Fig. 2 not shown.
  • the holding device 2 has on each side of a nub 66, with which the holding device 2 is held in the top roll carrier 1.
  • Fig. 5 shows a top roll carrier 40 with a holding device 41 which is acted upon by a spring force in order to generate the required for the spinning process pressure of the apron roller 42 and the output roller 43 to the lower rollers 44, 45.
  • the axle receptacle 49 supports the axis 51 of the output roller 43.
  • the curtain force of the output roller 43 and the rearward force of the apron roller 42 are similar in the exemplary embodiment of FIG Fig. 5 essentially, so that only a small or no horizontal force component acts on the holding device 41, as it does in the case of FIG Fig.
  • the holding device 2 is the case.
  • the Pressure plate 52 is made of steel.
  • the pressure plate 52 is suitable both for holding devices for the processing of short staple fiber material and for holding devices which are to be used for the processing of medium or long staple fiber material.
  • the holding devices are easy and quick to replace.
  • the pressure plate 52 and attached to it holding device 41 is pivotally connected to a pressure tab 54.
  • the pressure flap 54 is pivotable about a pivot axis 55 fixedly connected to the top roll carrier 40.
  • the compression spring 56 is supported on the one hand on a transverse pin 57 of the pressure plate 54 and on the other hand on a support plate 58 from.
  • the support plate 58 abuts against an eccentric element 59.
  • the eccentric element 59 is rotatably mounted on a rotation axis 60.
  • the rotation axis 60 is fixedly connected to the top roll carrier 40.
  • the force is adjustable with which the compression spring 56 acts on the pressure flap 54 and thus on the holding device 41, the apron roller 42 and the output roller 43.
  • the pressure flap 54 is designed so that the holding device 40 is acted upon by a largely constant force, even if the height position of the Oberwalzenanis 40 is adjusted within a certain range. This area can be about 6 mm.
  • a compression spring 61 urges the wing 65 with a certain downward force.
  • the vane 65 serves to deflect the top apron 62 of the apron roller 42 and the other upper apron and the associated other apron roller, both in the Fig. 5 not shown, and with the top apron 62 and the apron roller 42 each form a pair.
  • Oberriemchens 62 and arranged in mirror image Oberriemchens serves a Riemchenspanner 63, as in the Fig. 1 . 2 or 4 is shown.
  • the strap tensioner 63 is moved up and down in the slot 64 and is pressed by an unillustrated spring element upwards.
  • the holding devices each designed for the processing of conventionalstapeligem, astapeligem or langstapeligem fiber material can be easily and simply replaced.
  • the Riemchentician can be easily rotatable, whereby the loop slip can be further reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention concerne un support de cylindres supérieurs (1) pour des bancs d'étirage dans des métiers à filer, comprenant, en tant que cylindres supérieurs, au moins une paire de cylindres d'alimentation, une paire de cylindres à lanières, une paire de cylindres délivreurs, ainsi que des dispositifs de maintien pour les cylindres supérieurs. Ces derniers sont montés de manière à pouvoir tourner sur les extrémités d'axes (5,6) qui sont maintenus respectivement de manière centrale entre les cylindres supérieurs. Un dispositif de maintien commun (2) est prévu pour l'axe (5) des cylindres délivreurs (8) et l'axe (6) des cylindres à lanières (7), ledit dispositif de maintien étant raccordé de manière mobile au support de cylindres supérieurs (1) et les deux axes (5; 6) étant maintenus à une distance fixe l'un de l'autre.

Claims (8)

  1. Support de cylindres supérieurs pour bancs d'étirage équipant des métiers de filage, comprenant au moins une paire de cylindres d'entrée, une paire de cylindres porte-courroies et une paire de cylindres de sortie, représentant des cylindres supérieurs, et des dispositifs de retenue desdits cylindres supérieurs, lesquels cylindres supérieurs sont montés à rotation sur les extrémités d'axes, et lesdits axes sont respectivement retenus au centre, entre lesdits cylindres supérieurs, sachant qu'il est prévu, pour l'axe (5, 51) des cylindres de sortie (8, 43) et pour l'axe (6, 50) des cylindres (7, 42) porte-courroies, un dispositif commun de retenue (2, 41) relié audit support (1, 40) des cylindres supérieurs, avec mobilité,
    caractérisé par le fait
    que le dispositif de retenue (2, 41) se présente comme une pièce structurelle monobloc en matière plastique, avec les logements (3, 4, 48, 49) destinés aux axes (5, 6, 50, 51) des cylindres de sortie (8, 43) et des cylindres (7, 42) porte-courroies, de sorte que lesdits logements (3, 4, 48, 49) desdits axes sont situés à distance fixe les uns des autres ; et par le fait qu'un système de renvoi de courroies supérieures fait partie intégrante de ladite pièce structurelle monobloc.
  2. Support de cylindres supérieurs, selon la revendication 1, caractérisé par le fait que le système de renvoi de courroies supérieures revêt la forme d'ailes (23, 30, 65), et s'achève par une arête déflectrice (25) à l'extrémité libre.
  3. Support de cylindres supérieurs, selon la revendication 1 ou 2, caractérisé par le fait que le système de renvoi de courroies supérieures est réalisé sous la forme d'une aile (30) à l'extrémité libre de laquelle une réglette métallique chromée (32), pouvant être remplacée, est fixée en vue du renvoi de courroies supérieures (24, 26), ladite réglette métallique (32) pouvant être alternativement placée dans au moins deux positions.
  4. Support de cylindres supérieurs, selon l'une des revendications précédentes, caractérisé par le fait que le dispositif de retenue (2, 41) comporte une fente (33, 64) remplissant la fonction d'une coulisse de guidage dans laquelle est guidé un tendeur (35, 63) de courroies qui est configuré avec symétrie de révolution, est orienté avec parallélisme axial vis-à-vis desdits cylindres supérieurs (7, 8, 42, 43, 47) et est mobile par rapport audit dispositif de retenue (2, 41), avec effet de tension.
  5. Support de cylindres supérieurs, selon l'une des revendications précédentes, caractérisé par le fait que la matière plastique est du polyoxyméthylène.
  6. Support de cylindres supérieurs, selon l'une des revendications précédentes, caractérisé par le fait que la matière plastique est électriquement conductrice.
  7. Support de cylindres supérieurs, selon la revendication 1, caractérisé par le fait que la distance est réglable entre le cylindre (7, 42) porte-courroie et le cylindre d'entrée (47).
  8. Support de cylindres supérieurs, selon l'une des revendications précédentes, caractérisé par le fait que les logements (3, 4, 48, 49) des axes sont réalisés sous la forme d'une liaison encliquetable élastique.
EP05807852A 2005-02-05 2005-11-09 Support de cylindres superieurs pour bancs d'etirage dans des metiers a filer Not-in-force EP1848847B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005005382A DE102005005382A1 (de) 2005-02-05 2005-02-05 Oberwalzenträger für Streckwerke an Spinnmaschinen
PCT/EP2005/011964 WO2006081852A1 (fr) 2005-02-05 2005-11-09 Support de cylindres superieurs pour bancs d'etirage dans des metiers a filer

Publications (2)

Publication Number Publication Date
EP1848847A1 EP1848847A1 (fr) 2007-10-31
EP1848847B1 true EP1848847B1 (fr) 2011-07-06

Family

ID=35708980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05807852A Not-in-force EP1848847B1 (fr) 2005-02-05 2005-11-09 Support de cylindres superieurs pour bancs d'etirage dans des metiers a filer

Country Status (7)

Country Link
US (1) US7624563B2 (fr)
EP (1) EP1848847B1 (fr)
JP (1) JP4691111B2 (fr)
CN (1) CN100540770C (fr)
DE (1) DE102005005382A1 (fr)
ES (1) ES2364758T3 (fr)
WO (1) WO2006081852A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007038600A1 (de) * 2007-08-16 2009-02-19 Accotex-Texparts Gmbh Betätigungshebel eines Oberwalzen-Trag- und Belastungsarmes
RU2471898C2 (ru) * 2011-02-09 2013-01-10 Государственное образовательное учреждение высшего профессионального образования "Ивановская государственная текстильная академия"(ИГТА) Устройство для выпуска мычки на прядильной машине
CH709566A1 (de) * 2014-04-28 2015-10-30 Rieter Ag Maschf Abzugsanordnung für eine Spinnmaschine.
DE102019110880A1 (de) * 2019-04-26 2020-10-29 Saurer Intelligent Technology AG Trageinrichtung für ein Riemchenstreckwerk
LU102828B1 (de) * 2021-06-10 2022-12-12 Saurer Spinning Solutions Gmbh & Co Kg Oberriemchenhalter für ein Riemchenstreckwerk einer Textilmaschine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1990776U (de) 1968-08-01 Maschinenfabrik Rieter A.G., Winterthur (Schweiz) Oberwalzensattelanordnung für Spinnmaschinen-Streckwerke
GB817206A (en) 1957-11-29 1959-07-29 Ernst Toenniessen Draft mechanism for spinning machines
GB691615A (en) * 1950-09-07 1953-05-20 Ver Kugellagerfabriken Ag Drawing systems for textile spinning frames
CH375638A (de) * 1959-09-11 1964-02-29 Rieter Ag Maschf Führungs- und Belastungsarm am Streckwerk einer Spinnereimaschine
US3256570A (en) * 1962-08-10 1966-06-21 Nitto Boseki Co Ltd Top roll mounting means for spinning machines
US3283367A (en) * 1963-10-25 1966-11-08 Dixie Machine & Tool Company Suspension and weighting means of top rolls of a drafting machine
JPS5940928B2 (ja) * 1980-04-30 1984-10-03 村田機械株式会社 紡績機に於けるドラフト装置の駆動伝達方法
US4538329A (en) * 1980-10-31 1985-09-03 Murata Kikai Kabushiki Kaisha Draft device
DE3937667C2 (de) 1989-11-11 1998-07-30 Diethelm Stroeder Vorrichtung zum Angarnieren eines keramischen Henkels an einen keramischen Behälter
DE9214598U1 (fr) 1992-10-28 1992-12-10 Skf Textilmaschinen-Komponenten Gmbh, 7000 Stuttgart, De
DE4335889C2 (de) 1993-10-21 1996-07-11 Skf Textilmasch Komponenten Oberwalzenträger für Streckwerke von Spinnereimaschinen
JP3438584B2 (ja) * 1998-05-08 2003-08-18 株式会社豊田自動織機 紡機におけるトップエプロンクレードル
DE10321893A1 (de) * 2003-05-07 2004-12-02 Spindelfabrik Süssen Schurr, Stahlecker & Grill GmbH Oberriemchenkäfig für eine Spinnmaschine

Also Published As

Publication number Publication date
JP4691111B2 (ja) 2011-06-01
CN100540770C (zh) 2009-09-16
US7624563B2 (en) 2009-12-01
ES2364758T3 (es) 2011-09-13
WO2006081852A1 (fr) 2006-08-10
US20080040894A1 (en) 2008-02-21
DE102005005382A1 (de) 2006-08-10
EP1848847A1 (fr) 2007-10-31
CN101115871A (zh) 2008-01-30
JP2008528824A (ja) 2008-07-31

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