EP1986539B2 - Lave-vaisselle doté d'un dispositif de pulvérisation - Google Patents

Lave-vaisselle doté d'un dispositif de pulvérisation Download PDF

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Publication number
EP1986539B2
EP1986539B2 EP07703786.9A EP07703786A EP1986539B2 EP 1986539 B2 EP1986539 B2 EP 1986539B2 EP 07703786 A EP07703786 A EP 07703786A EP 1986539 B2 EP1986539 B2 EP 1986539B2
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EP
European Patent Office
Prior art keywords
edge
dishwasher according
shaped component
shaped
section
Prior art date
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Active
Application number
EP07703786.9A
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German (de)
English (en)
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EP1986539B1 (fr
EP1986539A1 (fr
Inventor
Bernd Heisele
Anton Oblinger
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL07703786T priority Critical patent/PL1986539T5/pl
Publication of EP1986539A1 publication Critical patent/EP1986539A1/fr
Publication of EP1986539B1 publication Critical patent/EP1986539B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • the invention relates to a dishwasher, in particular household dishwasher, with a washing container for receiving items to be washed and a spraying device having a first molded part, which has a first edge, and a second molded part, which has a second edge corresponding to the first edge, wherein the first and the second molding to form a fluid-tight cavity at a joining edge along their edges are connected by a connecting seam.
  • the invention also relates to a manufacturing method for a spray device of a dishwasher comprising the steps of providing a first molded part having a first edge, providing a second molded part having a second edge and connecting the first molded part to the second molded part to form a fluid-tight cavity at a joining edge with a Verbindunsnaht along the edges.
  • Such a spray device is from the DE 198 32 982 C2 known.
  • the spray device consists of two Förmiatan, each attached to a hub.
  • the mold elements are made of sheet metal or plastic.
  • an upper element is crimped around a lower element.
  • a further spray device with a spray arm embodied as a hollow body which is rotatably mounted in the washing compartment of a dishwasher is known from US Pat DE 202 20 465 U1 known.
  • the spray arm comprises an upper part and a lower part.
  • the two parts are made of a thin metal sheet and connected together by crimping.
  • a spray device for a dishwasher which has a top part made of a plastic and a bottom part made of a sheet metal shell, is made of DE-GM 78 31 102 U1 known. As from the one shown there Fig. 1 shows, the connection of upper and lower part is made by a crimp.
  • Binding bond technology requires that at least one of the mold parts be made of a metal.
  • the production of a generic spraying device is thereby complicated and cost-intensive due to the large number of different production steps and differently designed production machines.
  • the profile of a dishwasher spraying device can be achieved by pulling the top of a spraying element when it is made of a metallic material.
  • the spray element is made of a plastic material, the shape can be achieved by a compression molding process.
  • spraying devices are known in which a spray arm consists of a first and second molded part, which are integrally connected to one another by means of mirror welding due to the formation of a connecting seam.
  • the molded parts are produced by a spraying process in a tool made of thermoplastic material before the mirror welding. Disadvantage of such spraying devices are the high cost of manufacturing and the risk that can build up after completion of the manufacturing process tensions, which lead to a distortion of the spray arm.
  • the object of the present invention is therefore to provide a generic spray device for a dishwasher, a dishwasher with such a spray device and a manufacturing method for this spray device, which allows a more cost-effective production.
  • the dishwasher according to the invention in particular household dishwasher, with a washing container for receiving items to be washed and a spraying device with a first molded part having a first edge, and a second molded part having a second edge corresponding to the first edge, wherein the first and the second Form part for forming a fluid-tight cavity at a joining edge along their edges are connected to each other, wherein the connecting seam consists of an additional material.
  • the connecting seam does not come from the material of the first and / or second molded part.
  • the connecting seam is formed at the joining edge of the first and the second molded part for connecting the first and second molded part with at least one seam between the connecting seam and the first and second molded part.
  • the seams have the shape of the surface of the first and second molded part in this area.
  • the seam is applied by spraying with tools on the two existing moldings.
  • two seam regions are formed at least in partial regions between the connecting seam and the first and second molded part.
  • the seams or seam areas are formed between the connecting seam and the first molded part and between the connecting seam and the second molded part.
  • the two seams or seam areas in cross-section at a joint seam arise because the connecting seam is applied to the already existing first and second molded part by a spraying process. If the connecting seam is produced for example by mirror welding as in the prior art, the plastic of the first and second molded part is heated at the joining edge and then this heated plastic is connected to one another. Thus, no or only one seam is formed during the mirror welding.
  • Joining edge is understood to be any region of the edge of the first and second molded part which serves to connect the first and second molded part.
  • the connecting seam is made of a plastic that can be processed by a spraying process.
  • the connecting seam is applied to the joining edge by means of a spraying method.
  • the seam in an injection molding machine without additional process steps, such as. Mirror welding or trimming, are made when the first and second moldings are made of a plastic.
  • the spraying device can be manufactured without cutting and without waste fully automatically, optionally in a single process step: the latter is possible if the first and the second molded part are made of a preferably thermoplastic material, in particular injected.
  • the first and / or the second molded part may be made of a preferably thermoplastic plastic or metal.
  • plastic as a material has the advantage that the first and the second molded part can be produced by means of a spraying process, so that, for example, the inner contour of the molded parts is freely drivable. This can be advantageous for the design of the hydraulic conditions in the spray device. Furthermore, the integration of additional components, such as e.g. facilitated a Venturi tube, since the integration during the injection process can be accomplished and a subsequent manual assembly is eliminated.
  • the first edge of the first molded part and the second edge of the second molded part each have a first edge section extending away from the cavity and a second edge section extending substantially perpendicularly away from the first edge section. It is further provided that, when the first and second edges adjoin one another, the shape and arrangement of the first edge section and of the second edge section of the first and the second molded part is at least partially symmetrical. This geometric configuration of the first and second edges of the first and second mold parts facilitates the attachment of the connecting seam to the spraying device.
  • the connecting seam has a first end portion and a second end portion, which in a first intermediate space formed between the second edge portion and an outer shell of the first molded part, and a second gap, which is between the second edge portion and an outer shell is formed of the second molding, protrude and clasp the respective second edge portions.
  • the connecting seam has a substantially U-shaped configuration, wherein the end portions of the two legs of the "U" facing each other. It is further provided that the outermost end of the first end portion adjacent to the first edge portion of the first mold part, and the outermost end of the second end portion adjacent to the first edge portion of the second mold part.
  • the connecting seam produces a positive connection between the first edge section of the first molded part and the second edge section of the second molded part.
  • the connecting seam is connected at least in sections cohesively to the first molded part and / or the second molded part.
  • a further embodiment provides that the connecting seam is formed circumferentially at the joining edge of the first and the second molded part. As a result, a complete fluid-tight seal of the cavity is ensured against the environment.
  • the connecting seam is integrally formed without interruption.
  • the connecting seam with at least one opening, wherein the joining edge is not fluid-tight at the location of the at least one opening.
  • the spray device further comprises an axis about which the spray device is rotatably mounted, wherein the at least an interruption is arranged near the radially outer end of the spraying device.
  • the at least one interruption is designed and arranged such that it has a tangential outlet for the rinsing liquor and serves as a drive nozzle. This eliminates the need to provide a separate drive nozzle with a tangential outlet in one of the two moldings.
  • the connecting seam has a different color from the one or more colors of the first and second molded part.
  • spray nozzles for rinsing liquor are formed on the first and / or second molded part.
  • the spray nozzles pressurize the items to be washed with rinse water.
  • a feed tube for rinsing liquor in particular as Venturi tube, formed integrally with the first or second molded part on the first or second molded part.
  • a manufacturing method for a dishwasher spraying device comprises the steps of providing a first mold part having a first edge, providing a second mold part having a second edge, connecting the first mold part to the second mold part to form a fluid-tight cavity at a joining edge along the edges, wherein the connection is made with a seam at the joining edge with a spraying method or injection molding.
  • injection molding moldings z. B. seam, from molding compounds, for.
  • a thermoplastic material in forms, for. B. tool or injection mold produced.
  • the first and second molded part is thus surrounded at least in the region of the joining edges by a tool or injection molding tool, in which preferably thermoplastic material is introduced for producing the connecting seam.
  • the connecting seam is made of a preferably thermoplastic material.
  • the material of the connecting seam may be the same as the material of the first and second molded part or another material, the z. B. differs in modulus or color.
  • the first and / or second molded part is produced by a spraying method from a preferably thermoplastic material.
  • a feed tube for rinsing liquor in particular as a Venturi tube, is produced on the first or second molded part during production by the injection method in the production step for the first or second molded part.
  • the shape of the injection mold thus includes the feed tube and the first or second mold part, d. H. preferably thermoplastic material is introduced in one step in this injection mold.
  • Fig. 1 shows in a perspective view a section through a spray device according to the invention 1.
  • the spraying device 1 is hereinafter referred to as spray arm 1, which is rotatably mounted in a known manner in dishwashers about an axis of rotation (not shown).
  • the spray arm 1 is designed as a hollow body and comprises a first molded part 10 (also referred to as upper part) and a second molded part 20 (also referred to as lower part).
  • outlet openings 3 also referred to as spray nozzles
  • the first molded part 10 has a first peripheral edge 11.
  • the second molded part 20 has a circumferential second edge 21.
  • the course of the first and the second edge 11, 21 is in the illustrated illustration, in which the first mold part 10 and the second mold part 20 are arranged one above the other, corresponding to each other. In the region of the adjoining first and second edges 11, 21 results in a circumferential joining edge 2, which is to be sealed for a proper function of the spray arm.
  • connection of the first molded part 10 with the second molded part 20 is effected by the provision of a connecting seam 30 at the joining edge 2 of the first and second molded part 10, 20.
  • the connecting seam 30 is made of a plastic and applied to the joining edge 2 by a spraying process.
  • Fig. 1 shows two different variants, the following in the Figures 2 and 3 be explained in more detail. In practice, the seam 30 will be realized in only one of the variants. Due to the embodiment of the connecting seam 30 by means of a spraying process, wherein the molded parts 10, 20 are present even before the production step for the connecting seam 30, seams 33 form between the connecting seam 30 and the first molded part 10 and between the connecting seam 30 and the second molded part 20 off.
  • the first Molded part 10 and the second molded part 20 made of a plastic.
  • the arrangement and the shape of the outlet openings 30 as well as the inner contour of the first and / or second shaped part 10, 20 can be produced in a simple manner by a spraying process in a hydraulically desired manner. If both the first and the second molded part 10, 20 and the connecting seam 30 are made of plastic, then the spray arm according to the invention can be produced fully automatically in a process step without cutting and without waste. Production can be carried out in a single injection molding machine without the need for additional process steps, such as mirror welding or metal cutting. Furthermore, additional installation costs are unnecessary.
  • the formation of the first and the second mold part 10, 20 also brings with it the advantage that the integration of additional components, such as a feed tube (not shown) for rinsing liquor, eg as Venturi tube (atmospheric pressure occurs in the narrowed region of the feed tube, so that If no elaborate sealing measures are required when the rotating spray arm is stored in the narrowed area), it is easier because they can already be taken into account or formed in the course of the injection process.
  • the upper spray arm normally requires a feed pipe at the upper mold part and the lower spray arm normally at the lower mold part a feed pipe. This also eliminates previously necessary additional assembly steps.
  • the injection technology with a tool-bound joining contour has a high accuracy.
  • the edge 11 of the first molding 10 has a first first edge portion 12 extending away from the cavity 4.
  • a second edge portion 13 is arranged, which extends from the first edge portion substantially perpendicular away.
  • the second edge section 13 is arranged at the end of the first edge section 12 remote from the first shaped part 10.
  • the second edge 21 of the second molded part 20 is formed with a first edge portion 22 and a second edge portion 23.
  • first edge 11 and the second edge 21 are arranged corresponding to one another, the result is a symmetrical arrangement of the edge sections 12, 13 or 22, 23 of the first and second edge 11, 21.
  • the connecting seam 30 according to a first embodiment, as in Fig. 2 is shown, has a substantially U-shaped configuration, so that the second edge portions 13, 23 are clasped by the Verbidungsnaht 30.
  • a first end section 31 of the U-shaped connecting seam 30 adjoins the first edge section 12 of the first molded part 10.
  • a second end section 32 of the U-shaped connecting seam 30 adjoins the first edge section 22 of the second molded part 20.
  • the design of the first and the second edge 11, 12 and the configuration of the connecting seam 30 results in a positive connection between the first mold part 10 and the second mold part 20, as well as the connecting seam 30.
  • the joining edge 2, as in the figure for clarity is shown exaggerated size, it is sealed fluid-tight.
  • the first intermediate space 14 formed between the second edge section 13 and an enveloping surface 15 of the first molded part 10 may be dimensioned such that it substantially corresponds to the width of the first end section 31 of the connecting seam 30. This applies in a corresponding manner to the second intermediate space 24, which is formed between the second edge section 23 and an enveloping surface 25 of the second molded part.
  • Fig. 3 shows a conventional example of a connecting seam 30, which is materially connected to the edges 11, 21 of the mold parts 10, 20 connected. More precisely, a material connection is provided in the region of the second edge sections 13 and 23 with the connecting seam 30. The material connection is made on outer surfaces 16 and 26 and surfaces 17 and 27 and the connecting seam 30. The material bond to the surfaces 17 and 27 is formed by the application of the connecting seam 30 during an injection process. In this case, the joining edge 2 is slightly spread apart from the outer region, so that the material of the connecting seam 30 can penetrate into the joining edge 2. Also by this variant, a reliable fluid-tight seal of the cavity 4 of the spray arm 1 is given.
  • the color of the connecting seam 30 can be chosen differently than the color of the first and second molded part 10, 20. This makes it possible to provide a design element to a spray arm in a simple manner.

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (17)

  1. Lave-vaisselle, en particulier lave-vaisselle ménager, avec une cuve de lavage pour accueillir la vaisselle à laver et un bras de pulvérisation (1) avec une première pièce moulée (10) qui présente un premier bord (11), et une deuxième pièce moulée (20) qui présente un deuxième bord (21) correspondant au premier bord (11), dans lequel la première et la deuxième pièce moulée (10, 20) sont reliées l'une à l'autre afin de constituer une cavité étanche aux fluides sur une arête d'assemblage (2) le long de leurs bords (11, 21) via un cordon de liaison (30), caractérisé en ce que le cordon de liaison (30) se compose d'un matériau supplémentaire et est apposé sur l'arête d'assemblage (2) selon un procédé d'injection, en ce que le premier bord (11) de la première pièce moulée (10) et le deuxième bord (21) de la deuxième pièce moulée (20) présentent respectivement une première section de bord (12, 22) s'étendant à l'écart de la cavité (4) ainsi qu'une deuxième section de bord (13, 23) s'étendant essentiellement à la verticale à l'écart de la première section de bord (12, 22) et en ce que le cordon de liaison (30) présente une première section terminale (31) et une deuxième section terminale (32), lesquelles font saillie dans un premier espace intermédiaire (14), constitué entre la deuxième section de bord (13) et une enveloppe extérieure (15) de la première pièce moulée, et un deuxième espace intermédiaire (24), constitué entre la deuxième section de bord (23) et une enveloppe extérieure de la deuxième pièce moulée (25), et qui ceinturent les deuxièmes sections de bord respectives (13, 23).
  2. Lave-vaisselle selon la revendication 1, caractérisé en ce que le cordon de liaison (30) est fabriqué en un plastique de préférence thermoplastique.
  3. Lave-vaisselle selon la revendication 1 ou 2, caractérisé en ce que lorsque le premier et le deuxième bord (11, 21) sont contigus, la forme et la disposition de la première section de bord (12, 22) et de la deuxième section de bord (13, 23) de la première et de la deuxième pièce moulée (20) sont au moins symétriques par sections.
  4. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le cordon de liaison (30) présente au niveau de la section une forme essentiellement en U, les sections finales des deux branches du « U » étant de préférence dirigées l'une vers l'autre.
  5. Lave-vaisselle selon la revendication 4, caractérisé en ce que l'extrémité ultime de la première section finale (31) borde la première section de bord (12) de la première pièce moulée (10) et l'extrémité ultime de la deuxième section finale (32) borde la première section de bord (22) de la deuxième pièce moulée (20).
  6. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le cordon de liaison (30) établit un engagement positif entre la première section de bord (12) de la première pièce moulée (10) et la deuxième section de bord (22) de la deuxième pièce moulée (20).
  7. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le cordon de liaison (30) est au moins relié par sections par complémentarité de matières avec la première pièce moulée (10) et/ou la deuxième pièce moulée (20).
  8. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le cordon de liaison (30) est exécuté de manière périphérique sur l'arête d'assemblage (2) de la première et de la deuxième pièce moulée (10, 20).
  9. Lave-vaisselle selon la revendication 8, caractérisé en ce que le cordon de liaison (30) est exécuté en une pièce sans interruption.
  10. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le cordon de liaison (30) est doté d'au moins une percée, l'arête d'assemblage (3) n'étant pas étanche aux fluides à l'endroit de l'au moins une percée.
  11. Lave-vaisselle selon la revendication 10, caractérisé en ce que celui-ci présente un axe autour duquel le bras de pulvérisation (1) peut tourner, dans lequel l'au moins une percée est disposée à proximité de l'extrémité extérieure du bras de pulvérisation (1) dans le sens radial.
  12. Lave-vaisselle selon la revendication 10 ou 11, caractérisé en ce que l'au moins une percée est exécutée et disposée de telle manière à présenter une évacuation tangentielle pour le liquide de lavage et à servir de buse d'entraînement.
  13. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que la première et/ou la deuxième pièce moulée (10, 20) sont de préférence fabriquées en un matériau thermoplastique ou en métal.
  14. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que le cordon de liaison (30) présente une couleur divergeant de la ou des couleurs de la première et deuxième pièce moulée (10, 20).
  15. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que la première et/ou la deuxième pièce moulée (10, 20) sont fabriquées au moyen d'un procédé d'injection.
  16. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce que des buses de pulvérisation (3) pour le liquide de lavage sont exécutées sur la première et/ou la deuxième pièce moulée (10, 20).
  17. Lave-vaisselle selon l'une des revendications précédentes, caractérisé en ce qu'un conduit d'alimentation en liquide de lavage est exécuté en particulier sous forme de venturi en une seule pièce avec la première ou la deuxième pièce moulée (10, 20) sur la première ou la deuxième pièce moulée (10, 20).
EP07703786.9A 2006-02-16 2007-01-11 Lave-vaisselle doté d'un dispositif de pulvérisation Active EP1986539B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07703786T PL1986539T5 (pl) 2006-02-16 2007-01-11 Zmywarka do naczyń z urządzeniem rozpylającym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006007327A DE102006007327A1 (de) 2006-02-16 2006-02-16 Geschirrspülmaschine mit Sprühvorrichtung
PCT/EP2007/050241 WO2007093469A1 (fr) 2006-02-16 2007-01-11 Lave-vaisselle doté d'un dispositif de pulvérisation

Publications (3)

Publication Number Publication Date
EP1986539A1 EP1986539A1 (fr) 2008-11-05
EP1986539B1 EP1986539B1 (fr) 2016-03-09
EP1986539B2 true EP1986539B2 (fr) 2019-05-01

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ID=38218415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07703786.9A Active EP1986539B2 (fr) 2006-02-16 2007-01-11 Lave-vaisselle doté d'un dispositif de pulvérisation

Country Status (7)

Country Link
US (1) US8221558B2 (fr)
EP (1) EP1986539B2 (fr)
KR (1) KR20080094018A (fr)
CN (1) CN101384208B (fr)
DE (2) DE202006020709U1 (fr)
PL (1) PL1986539T5 (fr)
WO (1) WO2007093469A1 (fr)

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DE102010043019A1 (de) 2010-10-27 2012-05-03 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät, insbesondere Geschirrspülmaschine
DE102010043462A1 (de) * 2010-11-05 2012-05-10 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit zumindest einem rotierbaren Sprüharm
DE102018214238B3 (de) 2018-08-23 2019-10-24 BSH Hausgeräte GmbH Dekorteil für ein wasserführendes Haushaltsgerät und wasserführendes Haushaltsgerät
CN108899831A (zh) * 2018-09-14 2018-11-27 云南电网有限责任公司保山供电局 一种开口式电缆护管及其安装方法
CN111112818B (zh) * 2018-10-31 2021-10-01 宁波方太厨具有限公司 水槽清洗机用下水器支架的储能焊工装及储能焊方法
KR102641369B1 (ko) 2018-12-12 2024-02-28 삼성전자주식회사 식기세척기
DE102019211410A1 (de) * 2019-07-31 2021-02-04 BSH Hausgeräte GmbH Haushalts-Geschirrspülmaschine
DE102021201342A1 (de) 2021-02-12 2022-08-18 BSH Hausgeräte GmbH Fluiddichte Komponente, elektrisches Haushaltsgerät und Verfahren
DE102021214446A1 (de) 2021-12-15 2023-06-15 BSH Hausgeräte GmbH Dekorteil für ein vorzugsweise wasserführendes Haushaltsgerät

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Also Published As

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DE202006020709U1 (de) 2009-10-29
EP1986539B1 (fr) 2016-03-09
PL1986539T5 (pl) 2019-11-29
DE102006007327A1 (de) 2007-08-30
CN101384208B (zh) 2011-07-20
KR20080094018A (ko) 2008-10-22
CN101384208A (zh) 2009-03-11
US8221558B2 (en) 2012-07-17
PL1986539T3 (pl) 2016-10-31
WO2007093469A1 (fr) 2007-08-23
EP1986539A1 (fr) 2008-11-05
US20090032066A1 (en) 2009-02-05

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