EP2009151B1 - Dispositif de filature à jet d'air - Google Patents

Dispositif de filature à jet d'air Download PDF

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Publication number
EP2009151B1
EP2009151B1 EP20080010517 EP08010517A EP2009151B1 EP 2009151 B1 EP2009151 B1 EP 2009151B1 EP 20080010517 EP20080010517 EP 20080010517 EP 08010517 A EP08010517 A EP 08010517A EP 2009151 B1 EP2009151 B1 EP 2009151B1
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EP
European Patent Office
Prior art keywords
fiber bundle
introduction
introduction channel
yarn
spinning device
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.)
Active
Application number
EP20080010517
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German (de)
English (en)
Other versions
EP2009151A1 (fr
Inventor
Takahiro Toyoda
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP2009151A1 publication Critical patent/EP2009151A1/fr
Application granted granted Critical
Publication of EP2009151B1 publication Critical patent/EP2009151B1/fr
Active 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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex

Definitions

  • the present invention relates to a spinning device and particularly relates to a spinning device for manufacturing a spun yarn using a swirling airflow.
  • a spinning device for manufacturing a spun yarn using a swirling airflow includes a needle block including a needle along a yarn feeding direction in which a spun yarn is produced from a fiber bundle, a nozzle block in which a spatial portion is formed, and a spindle inserted into the spatial portion.
  • An introduction channel into which the fiber bundle fed out from a draft device is formed in the needle block.
  • the needle is attached to the needle block while a tip end of the needle protrudes to the spatial portion.
  • the introduction channel is formed to be gradually twisted in a swirling direction of the swirling airflow as disclosed in, for example, Patent Document 1.
  • An air nozzle having an outlet open to the hollow portion is formed in the nozzle block.
  • a hollow yarn passage hole is formed in the spindle in an axial direction of the spindle.
  • air is jetted from the air nozzle toward a tip end of the spindle and a swirling airflow is generated in a swirling airflow generation chamber that is a space formed between the nozzle block and the spindle.
  • This swirling airflow introduces the fiber bundle into the swirling airflow generation chamber via the introduction channel while the fiber bundle is wound around a tip end of the needle.
  • a part of fibers included in the fiber bundle introduced into the swirling airflow generation chamber, that is, the wound fibers are reversed and swirled along an inner peripheral wall of the nozzle block that is a peripheral wall of the spatial portion.
  • the wound fibers are wound around a fiber at a center of the fiber bundle continuously introduced into the yarn passage hole, that is, a core fiber, thereby manufacturing a spun yarn via the yarn passage hole.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 1995-82612
  • the present invention has been made to solve the conventional problems, already addressed by different means in EP 1 431 432 A . It is an object of the present invention to provide a spinning device ensuring constraining a fiber bundle introduced into an introduction channel of a fiber bundle introduction member, making it difficult to separate fibers constituting the fiber bundle, and ensuring less fiber loss.
  • a first aspect of the present invention is a spinning device for manufacturing a spun yarn by swirling a part of fibers included in a fiber bundle by a swirling airflow, the spinning device including a fiber bundle introduction member and a nozzle block, an introduction channel for introducing the fiber bundle being formed in the fiber bundle introduction member, a spatial portion being formed in the nozzle block and an air nozzle for generating the swirling airflow being formed in the spatial portion, including:
  • a second aspect of the present invention is characterized, based on a configuration of the first aspect of the present invention, in that an inner sidewall includes a first surface ranging from an inlet of the introduction channel to an outlet side of the introduction channel, and a second surface connected to the first surface a downstream side of a swirling direction of the swirling airflow and ranging from an inlet side of the introduction channel to an outlet of the introduction channel; and an angle between the first surface and the second surface is set to almost right angle.
  • the fiber bundle introduced into the introduction channel is bent almost at right angle and surely constrained by the fiber bundle introduction member.
  • a third aspect of the present invention is characterized, based on the configures of the first and second aspects of the present invention, in that the inner sidewall further includes a third surface connected to the second surface the downstream side of the swirling direction and ranging from the inlet side of the introduction channel to the outlet of the introduction channel; and an angle between the second surface and the third surface is set to almost right angle.
  • the fiber bundle is bent almost at right angle again and constrained further surely by the fiber bundle introduction member.
  • joints generated on the fiber bundle guide surface of the introduction channel by manufacturing process are eliminated.
  • the fiber bundle is bent almost at right angle again and constrained further surely by the fiber bundle introduction member. Due to this, it is difficult to separate the fibers constituting the fiber bundle from the fiber bundle and the fibers causing fiber loss can be further reduced.
  • Fig. 1 is a perspective view showing a schematic configuration of a spinning machine including a spinning device according to a first embodiment of the present invention.
  • a spinning machine 10 includes a can 11, a draft device 12, a spinning device 13, a yarn feeding device 14, a yarn defect detection device 15, and a winding device 16 from an upstream side of a yarn feeding direction in which a spun yarn 18 is manufactured from a fiber bundle 17.
  • the fiber bundle 17 produced by a drawing frame machine is accommodated in the can 11.
  • the spinning device 13 is a device manufacturing the spun yarn 18 by applying a swirling airflow to the fiber bundle 17 fed from the front roller pair 22 of the draft device 12.
  • the spinning device 13 will be described later in detail.
  • the yarn feed device 14 is a device feeding out the spun yarn 18 manufactured by the spinning device 13 to the yarn winding device 16 arranged at a downstream side of the yarn feeding direction.
  • the yarn feed device 14 includes a delivery roller 23 and a nip roller 24 provided to be contactable and separable with and from the delivery roller 23.
  • the spun yarn 18 held between the delivery roller 23 and the nip roller 24 is fed to the winding device 16 by being driven to rotate by the delivery roller 23.
  • the yarn defect detection device 15 is a device detecting a yarn defect of the spun yarn 18 that is being fed to the winding device 16. A defective portion of the spun yarn 18 is removed based on the yarn defect detection information obtained by the yarn defect detection device 15, thus preventing defective yarns from being wound to a package 25.
  • the yarn defect detection device 15 includes a cutting device, not shown, cutting the spun yarn 18 according to detection of the yarn defect.
  • the spinning device 10 includes a yarn joint device, not shown, joining together both ends of the spun yarn 18 that has been cut once.
  • the winding device 16 is a device manufacturing the package 25 by winding the spun yarn 18 manufactured by the spinning device 13 around a bobbin 27 supported by a bobbin holder, not shown.
  • the spinning device 13 will be described.
  • the spinning device 13 includes a fiber bundle introduction member 30, a nozzle block 33 in which a spatial portion 55 is formed, and a spindle 38 a tip end 42 side of which is inserted into the spatial portion 55 from the downstream side of the yarn feeding direction.
  • the spatial portion 55 is configured to include a cylindrical spatial portion 43 formed into a cylindrical shape and a truncated cone-shaped spatial portion 49 connected to a downstream side of the cylindrical spatial portion 43.
  • a diameter of an upstream-side surface of the truncated cone-shaped spatial portion 49 connected to the downstream side of the cylindrical spatial portion 43 is the same as that of the cylindrical spatial portion 43 and enlarges downstream.
  • the nozzle block 33 and the spindle 38 are arranged coaxially.
  • the spindle 38 is arranged to be apart from the fiber bundle introduction member 30 and the nozzle block 33 so as not to contact with the fiber bundle introduction member 30 and the nozzle block 33.
  • An introduction channel 32 into which the fiber bundle 17 fed from the draft device 12 is introduced is formed in the fiber bundle introduction member 30 to penetrate the fiber bundle introduction member 30 in the yarn feeding direction.
  • the introduction channel 32 will be described later in detail.
  • a cylindrical space, i.e., a reversing chamber 36 is formed between the fiber bundle introduction member 30 and the tip end 42 of the spindle 38.
  • a columnar space, i.e., a swirling airflow generation chamber 37 is formed between an inner circumferential wall 44 of the nozzle block 33 and an outer circumferential wall 45 of the spindle 38.
  • a yarn passage hole 39 is formed at an axial position of the spindle 38 to axially penetrate the spindle 38.
  • the introduction channel 32, the swirling airflow generation chamber 37, and the yarn passage hole 39 communicate with one another via the
  • the fiber bundle introduction member 30 includes a needle-like guide member 31 having a tip end protruding into the reversing chamber 36 that is a part of the cylindrical spatial portion 43 toward an inlet of the yarn passage hole 39.
  • This guide member 31 guides a part of the fiber bundle 17 introduced into the reversing chamber 36, that is, a core fiber located at a center of the fiber bundle 17 to the yarn passage hole 39. It is to be noted that a protrusion amount of the guide member 31 to the yarn passage hole 39 side is adjustable.
  • a plurality of air nozzles 34 each of which is slightly inclined to the downstream side of the yarn feeding direction toward the cylindrical spatial portion 43 and which has a circular cross section is formed in the nozzle block 33.
  • An outlet of each of the air nozzles 34 is formed to be open to the inner circumferential wall 44 of the nozzle block 33 that also serves as a circumferential wall of the cylindrical spatial portion 43.
  • Each of the air nozzles 34 is formed in a tangential direction of a circle constituted by the inner circumferential wall 44 of the nozzle block 33. If air is jetted uniformly from the air nozzles 34 by air supply means, not shown, a swirling airflow swirling at constant speed in an axial direction of the spindle 38 indicated by arrows in Fig.
  • a flow of the air includes not only a swirling component but also a component oriented in the yarn feeding direction.
  • the introduction channel 32 formed in the fiber bundle introduction member 30 will next be described.
  • Fig. 3 is a perspective view showing a schematic configuration of the fiber bundle introduction member of the spinning device shown in Fig. 1 .
  • Figs. 4(1) to 4(3) show the schematic configurations of the fiber bundle introduction member of the spinning device shown in Fig. 1 .
  • Fig. 4(1) is a front view
  • Fig. 4(2) is a back view
  • Fig. 4(3) is a side view of the fiber bundle introduction member.
  • Fig. 5(1) is a cross-sectional view taken along a line V-V of Figs. 4(1) to 4(3) .
  • Fig. 5(2) is a cross-sectional view taken along a line VI-VI of Figs. 4(1) to 4(2) .
  • Another outward end 75 of the outlet 71 is arranged at a position at which the outlet 71 appears to overlap the inlet 70 from an axial direction of the guide member 31, that is, at a position at which the outlet 71 does not protrude relatively to an external edge of the inlet 70 from an axial direction of the guide member 31.
  • the introduction channel 32 is configured to connect the inlet 70 to the outlet 71 so as to be bent around the axis of the guide member 31 in the swirling direction of the swirling airflow shown by an arrow in Fig. 3 . Further, the introduction channel 32 is formed so as to guide the fiber bundle 17 to the inlet of the yarn passage hole of the spindle.
  • the introduction channel 32 is configured to include a first introduction portion 72 spatially spreading in the longitudinal direction of the inlet 70, a second introduction portion 73 connected to a lower surface of the first introduction portion 72 and to a right side of the first introduction portion 72 relative to the tip end of the guide member 31 and spatially spreading in the longitudinal direction of the outlet 71, and a third introduction portion 74 connected downward to an outlet side of the second introduction portion 73 and to a left side of the second introduction portion 73 relative to the tip end of the guide member 31.
  • a longitudinal width of the first introduction portion 72 is narrower to the outlet 71 side and a first surface 78 that is a lower surface of the first introduction portion 72 is horizontal and an upper surface 76 of the first introduction portion 72 is slightly inclined to the downward.
  • a width of the second introduction portion 73 in a smaller length direction is almost constant and a width thereof in the longitudinal direction is larger to the outlet 71 side.
  • a fiber bundle guide surface of the introduction channel 32 along which the fiber bundle 17 is moved is configured to include the first surface 78 ranging from the inlet 70 of the introduction channel 32 to the outlet 71 side thereof, a second surface 79 connected to the first surface 78 the downstream side of the swirling direction of the swirling airflow and ranging from the inlet 70 side to the outlet 71, and a third surface 80 connected to the second surface 79 the downstream side of the swirling direction of the swirling airflow and ranging from the inlet 70 side to the outlet 71.
  • the fiber bundle guide surface is an axial-side inner sidewall of the guide member 31. Since the fiber bundle introduction member 30 is formed by integral molding, joints that are to be generated by manufacturing process are not formed on the fiber bundle guide surface. As shown in Fig.
  • each surface is judged as a whole by determining whether the angle between the surface and the other surface is almost right angle. Accordingly, the first surface 78, the second surface 79, and the third surface 80 are not necessarily flat. Furthermore, the angle ⁇ 1 between the first surface 78 and the second surface 79 and the angle ⁇ 2 between the second surface 79 and the third surface 80 are angles on an opposite side to the introduction channel 32 side, that is, angles on the axial side of the guide member 31.
  • the fiber bundle 17 fed from the draft device 12 is introduced into the introduction channel 32 configured as stated above by the swirling airflow.
  • the fiber bundle 17 fed from the front roller pair 22 of the draft device 12 is introduced into the reversing channel 36 via the introduction channel 32 formed in the fiber bundle introduction member 32. Movement of the fiber bundle 17 in the introduction channel 32 will be described later in detail.
  • the fiber bundle 17 is wound around the guide member 31 by about half turn.
  • the swirling airflow is generated in the reversing chamber 36 and the swirling airflow generation chamber 37 connected to the downstream side of the yarn feeding direction of the reversing chamber 36 in a direction indicated by arrows in Fig. 2 .
  • the swirling airflow includes the component oriented in the yarn feeding direction. Due to this, external air is absorbed from the introduction channel 32 to facilitate introducing the fiber bundle 17 into the reversing chamber 36.
  • the core fiber around which the wound fibers 46 are wound is fed out from the spinning device 13 via the yarn passage hole 39. In this way, the spun yarn 18 is manufactured.
  • the fiber bundle 17 is rapidly bent in the portion where the first surface 78 is connected to the second surface 79 almost at right angle, and moved along the second surface 79 constituting a side surface of the second introduction portion 73.
  • the fiber bundle introduction member 30 because of the sharp bending of the fiber bundle 17, the convergence of the fiber bundle 17 is improved and the fiber bundle 17 is surely constrained by the fiber bundle introduction member 30.
  • the fiber bundle 17 moves in a direction closer to the tip end of the guide member 31 along an inclined surface 77 constituting a lower surface of the second introduction portion 73.
  • the fiber bundle 17 is bent in the portion where the second surface 79 is connected to the third surface almost at right angle, and moved along the third surface constituting an upper surface of the third introduction portion 74. At this time, because of the sharp bending of the fiber bundle 17, the fiber bundle 17 is more surely constrained by the fiber bundle introduction member 30. Furthermore, the fiber bundle 17 is further closer to the tip end of the guide member 31 at the outlet 71. Meanwhile, the fibers constituting the fiber bundle 17 are often separated from the fiber bundle 17 introduced into the yarn passage hole 39 during movement of the fiber bundle 17 in the introduction channel 32. In this case, the fiber bundle 17 is moved toward the tip end of the guide member 31 due to the influence of the swirling airflow and the shape of the introduction channel. This facilitates constraining the fibers that have been separated once again and introducing the fiber bundle 17 including the fibers have been separated once again into the yarn passage hole 39.
  • the fiber bundle 17 exit the outlet 71 and is introduced into the yarn passage hole 39 while being wound around the guide member 31. In this manner, the fiber bundle 17 moves in the introduction channel 32.
  • the fiber bundle 17 introduced into the introduction channel 32 is bent almost at right angle, the convergence of the fiber bundle 17 is improved, and the fiber bundle 17 is surely constrained by the fiber bundle introduction member 30. It is, therefore, difficult to separate the fibers constituting the fiber bundle 17 from the fiber bundle 17. Specifically, it is difficult to separate the ends of the wound fibers 46 at the downstream side of the yarn feeding direction from the core fiber continuously introduced into the yarn passage hole 39. Therefore, the so-called fiber loss that fibers are destroyed without forming into the spun yarn 18 can be reduced. Moreover, joints that are to be generated by manufacturing process are eliminated on the fiber bundle guide surface of the introduction channel 32, thereby making smooth movement of the fiber bundle 17 in the introduction channel 32 without catching the fibers up halfway.
  • the third introduction portion is provided at the outlet of the introduction channel of the fiber bundle introduction member.
  • the introduction portion other than the third introduction portion may be provided at the outlet of the introduction channel.
  • the first surface is a flat surface and each of the second and third surfaces is a combination of a flat surface and a curved surface.
  • each of the angles relative to the respective surfaces is set in a range from 90° to 120°, preferably set to 90°
  • each of the first, second, and third surfaces may be a flat surface, a curved surface or a combination of the flat surface and the curved surface.
  • the fiber bundle introduction member and the nozzle block are constituted by different members.
  • the spinning device is not necessarily constituted as stated in the embodiment but the fiber bundle introduction member and the nozzle block may be formed integrally
  • the guide member 31 is attached to the fiber bundle introduction member.
  • the spinning device is not necessarily constituted as described in the embodiment but the spinning device may not include the guide member 31.
  • the present invention relates to a spinning device and particularly relates to a spinning device manufacturing a spun yarn using a swirling airflow.

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

Claims (1)

  1. Dispositif de filage pour la fabrication d'un fil filé par tourbillonnement d'une partie des fibres incluses dans un faisceau de fibres (17) par un écoulement d'air tourbillonnant, le dispositif de filage comprenant :
    un élément d'introduction de faisceau de fibres (30) comprenant un canal d'introduction (32) avec une surface de guidage de faisceau de fibres pour l'introduction et le guidage du faisceau de fibres (17),
    un bloc de buse (33) comprenant une buse d'air (34) pour générer l'écoulement d'air tourbillonnant et une portion spatiale (55) raccordée au canal d'introduction (32),
    une broche (38) qui est insérée dans la portion spatiale (55) et qui comprend un trou de passage de fil (39) à travers lequel passe le fil filé, caractérisé en ce que
    des portions fortement pliées contraignant le faisceau de fibres (17) sont formées sur la surface de guidage de faisceau de fibres, qui comprend une première surface (78) allant d'une entrée (70) du canal d'introduction (32) à un côté de sortie du canal d'introduction (32), une deuxième surface (79) raccordée à la première surface (78) sur un côté aval dans un sens d'acheminement du fil et allant d'un côté d'entrée du canal d'introduction (32) à une sortie (71) du canal d'introduction (32), et une troisième surface (80) raccordée à la deuxième surface (79) sur le côté aval dans le sens d'acheminement du fil et allant du côté d'entrée du canal d'introduction (32) à une sortie (71) du canal d'introduction (32) et, un angle θ1 entre la première surface (78) et la deuxième surface (79) se situe dans une plage de 90 ° à 120 °, de préférence de 90 °, et un angle θ2 entre la deuxième surface (79) et la troisième surface (80) est réglé sur un angle presque droit.
EP20080010517 2007-06-21 2008-06-10 Dispositif de filature à jet d'air Active EP2009151B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007164203A JP5162975B2 (ja) 2007-06-21 2007-06-21 紡績装置

Publications (2)

Publication Number Publication Date
EP2009151A1 EP2009151A1 (fr) 2008-12-31
EP2009151B1 true EP2009151B1 (fr) 2012-05-23

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Family Applications (1)

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EP20080010517 Active EP2009151B1 (fr) 2007-06-21 2008-06-10 Dispositif de filature à jet d'air

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EP (1) EP2009151B1 (fr)
JP (1) JP5162975B2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019100306A1 (de) 2019-01-08 2020-07-09 Maschinenfabrik Rieter Ag Faserführungselement für eine Spinndüse sowie damit ausgestattete Spinndüse

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011084854A (ja) 2009-09-18 2011-04-28 Murata Machinery Ltd 紡績機
JP2012097391A (ja) 2010-11-05 2012-05-24 Murata Mach Ltd 紡績機
JP2013067895A (ja) * 2011-09-21 2013-04-18 Murata Mach Ltd 紡績ユニット及び紡績機
JP2013067897A (ja) * 2011-09-21 2013-04-18 Murata Mach Ltd 紡績機
JP2013067893A (ja) 2011-09-21 2013-04-18 Murata Mach Ltd 紡績機及び紡績糸の製造方法
CH708620A1 (de) * 2013-09-30 2015-03-31 Rieter Ag Maschf Faserführungselement für eine Spinndüse einer Luftspinnmaschine sowie damit ausgestattete Spinnstelle.
JP2017014672A (ja) 2015-07-06 2017-01-19 村田機械株式会社 ノズルブロック、空気紡績装置及び紡績機
CN106400225B (zh) * 2016-06-22 2018-09-21 陕西宝成航空仪表有限责任公司 用于喷气涡流纺纱机针长和锭子高度的检测装置
JP2021025171A (ja) * 2019-08-07 2021-02-22 村田機械株式会社 空気紡績装置及び繊維案内部材
EP3859061A1 (fr) * 2020-01-30 2021-08-04 Saurer Intelligent Technology AG Dispositif de réception d'une mèche de fibres
JP2023026083A (ja) 2021-08-12 2023-02-24 村田機械株式会社 ファイバーガイド、空気紡績装置及び空気紡績ユニット
JP2024036746A (ja) * 2022-09-06 2024-03-18 村田機械株式会社 ファイバーガイド、空気紡績装置、及び空気紡績機

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JPS58197320A (ja) * 1982-05-14 1983-11-17 Toyoda Autom Loom Works Ltd 結束紡績方法および装置
JPS5921724A (ja) * 1982-07-21 1984-02-03 Toyoda Autom Loom Works Ltd 結束紡績方法並びに装置
JPH04163325A (ja) * 1990-10-26 1992-06-08 Murata Mach Ltd 紡績装置
JP2697575B2 (ja) 1993-09-08 1998-01-14 村田機械株式会社 紡績装置
JPH07258930A (ja) * 1994-03-14 1995-10-09 Murata Mach Ltd 紡績糸及びその製造方法
JP2773670B2 (ja) * 1995-02-10 1998-07-09 村田機械株式会社 紡績装置
JP2708000B2 (ja) * 1995-02-10 1998-02-04 村田機械株式会社 紡績装置
JPH10204731A (ja) * 1997-01-16 1998-08-04 Murata Mach Ltd 紡績装置
DE10261011A1 (de) * 2002-12-17 2004-07-08 Wilhelm Stahlecker Gmbh Vorrichtung zum Herstellen eines gesponnenen Fadens
JP2005105430A (ja) * 2003-09-29 2005-04-21 Murata Mach Ltd 紡績機
DE102005045703A1 (de) * 2005-09-19 2007-03-22 Wilhelm Stahlecker Gmbh Luftdüsenaggregat für eine Luftdüsenspinnvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019100306A1 (de) 2019-01-08 2020-07-09 Maschinenfabrik Rieter Ag Faserführungselement für eine Spinndüse sowie damit ausgestattete Spinndüse
EP3680373A1 (fr) 2019-01-08 2020-07-15 Maschinenfabrik Rieter AG Élément de guidage de fibre pour une buse de filage ainsi que buse de filage équipée d'un tel élément de guidage de fibre

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JP5162975B2 (ja) 2013-03-13
EP2009151A1 (fr) 2008-12-31
JP2009001935A (ja) 2009-01-08

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