EP2166139B1 - Lisse Jacquard dotée d'une zone visuelle de fil imprégnée - Google Patents

Lisse Jacquard dotée d'une zone visuelle de fil imprégnée Download PDF

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Publication number
EP2166139B1
EP2166139B1 EP09011759A EP09011759A EP2166139B1 EP 2166139 B1 EP2166139 B1 EP 2166139B1 EP 09011759 A EP09011759 A EP 09011759A EP 09011759 A EP09011759 A EP 09011759A EP 2166139 B1 EP2166139 B1 EP 2166139B1
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EP
European Patent Office
Prior art keywords
heald
section
legs
cross
opening
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
EP09011759A
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German (de)
English (en)
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EP2166139A1 (fr
Inventor
Jochen Stauss
Werner Veeser
Rene Conzelman
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP09011759A priority Critical patent/EP2166139B1/fr
Publication of EP2166139A1 publication Critical patent/EP2166139A1/fr
Application granted granted Critical
Publication of EP2166139B1 publication Critical patent/EP2166139B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/024—Eyelets
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/04—Metal healds

Definitions

  • the invention relates to a jacquard strand for use in Jacquard machines.
  • Jacquard strands are for example according to GB 807945 made by first soldering two adjacent wires together. The brazed wires are then separated again in one area and bent slightly apart. In the resulting opening then a Fadenaug DNS (Maillon) is soldered, which forms the thread eye.
  • Fadenaug DNS Fadenaug DNS
  • Remedy creates the DE 121 105 , which emanates from the production of the heald from a relatively thick wire. While a central portion of the wire initially remains undeformed, the two axially adjacent portions are axially stretched so that their diameter decreases. The remaining thick central area is then flattened to a thickness corresponding to the diameter of the stretched areas. In the resulting oval flattened area is then in turn punched an oval opening into which a Fadenaugfoli can be used.
  • the EP 1 767 676 deals in a way supplementary to the aforementioned document with the improvement of the attachment option for the Fadenaugrum.
  • the strand shown there is based on a round wire on which a flattened area is attached. In these an opening is punched, which is bounded by two remaining flat legs. The opening is narrower than a thread eye to be inserted. In order to achieve the required width, the remaining legs are wound in the longitudinal direction, so that they are inclined in cross section to the thread eye.
  • the resulting asymmetry of the shape is disadvantageous during weaving, but in particular with regard to the passage of the threads running alongside the strand.
  • the above disadvantages should be avoided as much as possible.
  • the jacquard strand according to the invention has a strand body which consists of a round material. This is provided with a flattened portion having a widened bounded by two legs opening. The two legs have a common cross-sectional area, which coincides with the cross-sectional area of the round Litzen stresses. The tensile strength of the strand is thus approximately the same in the flattened section and in the region of the eye as in the regions spaced from the eye.
  • round wire can be used as the starting material for the production of the strand, which is available as a semi-finished product at low cost. Hard-to-control and thus quality defects causing manufacturing steps, such as local stretching of the wire are avoided.
  • the (round wire) strand is narrow, so that it is hardly worn by the running through between the strands warp threads.
  • the service life is correspondingly high.
  • the jacquard strand change associated with high personnel expenditure can be reduced to a minimum.
  • the narrow width of the jacquard strand according to the invention in comparison with flat strip strands or double stranded strands also allows the production of comparatively dense jacquard fabrics.
  • the jacquard strand according to the invention is preferably symmetrical with respect to a median plane on which the opening direction of the thread eye is perpendicular. Front and back of Jacquardweblitze are equal in particular to the.Fadenauge. This protects the warp threads.
  • the strands according to the invention can be optimized in terms of their weight. Because of the material cross section which is largely constant along the longitudinal direction and the resulting constant tensile strength, the heddle can be produced over its entire length with minimal use of material. This is advantageous in view of the conditions encountered in jacquard machines. As a rule, jacquard machines have a negative shedding. This means that the strands are held in the lower position with springs or weights and are brought into the upper compartment position only by the tensile force of the respective harness cord. The lighter the strands, the lower the required force. Correspondingly lower, the counterforce can also fail, i. the lighter or weaker the weights or springs that pull the strands down can fail. As a result, the energy consumption of a jacquard machine can be reduced.
  • the strand of the invention causes in their production no or only a very minimal material waste, which is particularly important when using high-quality steels or stainless steels and stainless steels.
  • the cross sections of the legs enclosing the opening are produced by plastic deformation without (significant) material removal from the cross section of the starting material.
  • the strand of the invention can be produced from a round wire, i. Made of metal. But it can also be made of a plastic material, such as a carbon fiber or glass fiber composite. Also in the plastic variant, the sum of the area contents of the leg cross sections coincides with the area of the round cross section. Depending on the manufacturing method, the sum of the surface areas of the leg cross sections may differ slightly from the surface area of the round cross section. Thus, it is possible that in the mechanical production of the leg cross-sections, a material flow takes place in the longitudinal direction of the strand according to the invention, which can slightly influence the cross-sectional ratios. The two legs then have a common cross-sectional area, which still largely coincides with the cross-sectional area of the round strand body.
  • a Fadenaugieri is preferably held. This can preferably be glued. It is also possible to fix it by means of a solder or a weld.
  • the Fadenaug réelle on its outer periphery on a circumferential groove. The legs of the strand bent away from each other nestle into this channel and hold the thread eye insert. If the outer contour of the Fadenaug residentses optimally adapted to the cross section of the legs, ie they are congruent to each other, can be dispensed with attachment of the FadenaugDCes eg by soldering or gluing, as between the outer contour of the FadenaugDCes and the legs creates a positive connection.
  • the wire cross-section is preferably determined by starting from the thread-threading insert to be used in the size. From the thickness of the Fadenaug densities arise the cross sections of the two wire-shaped legs, which engage in the outside of the thread eye insert gutter. The sum of these two substantially round leg cross-sections, which usually have a diameter of 0.3 to 0.4 mm, gives the wire cross-section of then, for example, 0.42 mm to 0.57 mm. Preferably, a wire diameter of 0.5 mm is used because the legs are then given a diameter of about 0.35 mm. This corresponds to the dimensions that are suitable for the most commonly used Fadenaugein engines today.
  • the strand according to the invention is produced, for example, by embossing, by producing a flattened region on a round wire which has a longitudinal groove on both flat sides.
  • the two longitudinal grooves have a matching shape.
  • an octagonal cross-section has been formed on the round wire at the relevant point.
  • two legs can be separated and pulled apart. The result is an opening into which a Fadenaug senator can be inserted.
  • the two separate legs then have an at least nearly round cross-section, wherein the cross-sectional ratios according to the invention are maintained.
  • the shape achieved in this way fulfills all requirements with regard to thread-friendliness with regard to the threads running past the outside of the strand.
  • the attachment of the Fadenaug cities is easy, because the cross sections of the legs fit into the outer groove or gutter of Fadenaugnices.
  • the outer shape of the two legs is preferably round, they may have on the mutually facing flanks a protruding into the opening rib, which engages particularly well in the groove of the Fadenaugnices so that it is held securely.
  • Fadenaugmbies By attaching the Fadenaugmbies in bonding technology, it is possible to use as starting material for the strand a difficult or non-solderable material, such as stainless steel. In addition, adhesive as a fastening material contributes less to the strand weight than a corresponding solder.
  • the transition between the flat cross section and the circular cross section is achieved by a stepless transition zone in which the individual cross sections change continuously along the axial direction of the heddle. Any abrupt or step-like cross-sectional changes are preferably avoided.
  • the heddle body is provided with an eyelet at only one of its two ends, while an anchoring element for fastening a spring, for example a helical tension spring, is preferably provided at the other end is.
  • the eyelet is preferably formed by a hairpin-like wire loop in which a wire section is welded to the strand body through one or more welds, joined by a weld, or otherwise secured thereto.
  • a portion of a wire leg and a portion of a strand body are adjacent to each other in parallel.
  • the anchoring element for the tension spring is preferably a plastic part, which can be secured on a correspondingly profiled, for example by bending corrugated end of the heddle body material and form-fitting manner.
  • the anchoring element has, for example, a threaded pin whose thread is suitable for receiving turns of a helical spring.
  • FIG. 1 is a jacquard 1 illustrated, which is intended for use in Jacquard looms. It has an elongated Litzenköper 2, which is provided at its ends with fastening means, for example in the form of eyelets 3, 4.
  • the heald body 2 consists for example of a wire, for example a stainless steel wire. But it can also consist of another suitable material, such as plastic.
  • the heddle 1 is in FIG. 2 illustrated in more detail. It has a thread eye 5, which is preferably formed by a Fadenaugrus 6. Such a Fadenaugaci 6 is also referred to as "Maillon”. It is formed by an annular element, which consists for example of hardened steel, ceramic, hard metal or a similar material and defines a central opening 7. At its outer periphery of the Fadenaugrus 6, as FIG. 3 can recognize, provided with an all-round groove or channel 8.
  • Section 9 is in FIG. 2 separately illustrated.
  • the cross section of the shank leg 10 or 11 gradually changes into a flat cross section in an intermediate or transition section 9a.
  • FIG. 7 illustrates the circular cross section of the shaft leg 10, which coincides with the circular cross section of the shaft leg 11.
  • the circular cross-section of the shaft leg 10 or 11 has a cross-sectional area A1, which at the section line VII-VII in FIG. 2 is to measure and along the shaft 20 of the Jacquardlitze, which is formed by its legs 10 or 11, preferably unchanged.
  • the circular cross-section is in a more and more flattened section over.
  • the cross section at the in FIG. 2 illustrated section line VI-VI, the cross-sectional shape after FIG. 6 on.
  • This cross-section defines a cross-sectional area A2, which is preferably the same size as the cross-sectional area A1.
  • the flattening of the strand body can increase.
  • FIG. 5 has a cross-sectional shape FIG. 5 with a cross-sectional area A3, where A3 equals A2 equals A1.
  • the flattened cross section after FIG. 5 have groove-shaped depressions 12, 13 at its upper and lower side, which can increase in depth in the further longitudinal course.
  • FIG. 4 which represents the cross section IV-IV.
  • the cross section may be approximately eight-shaped here. It has a total cross-sectional area A4, again A4 equal A3 equal to A2 equal to A1.
  • legs 14, 15 By creating the cross-sectional shape according to FIG. 4 can be in the flattened portion 9 legs 14, 15 separate and bend away from each other. In this case, the narrow web which divides the recesses 12, 13 separated from each other.
  • the two legs 14, 15 thus define an opening 16 in which the Fadenauggan 6 can be held.
  • the conditions are in FIG. 3 illustrated.
  • Both legs 14, 15 each have a cross section with a cross-sectional area A5, A6, which are preferably equal to each other.
  • the sum of the two cross-sectional areas A5, A6 is preferably the same size as the cross-section A4 or A3 or A2 or A1.
  • the two-sided flattening of the strand body are the same.
  • the heddle 1 is thus also and straight on the thread eye symmetrical to a plane of symmetry E, which passes through the middle of the two legs 14, 15 and through the shaft legs 10, 11.
  • the groove-like depressions 12, 13 extend (FIG. FIG. 8 ) over the flattened portion 9 to both shank legs 10, 11 out.
  • the recesses or at a certain distance to these transverse bores 12a, 12b may be arranged, which intersect the two recesses 12, 13 and are oriented parallel to the thread eye.
  • the diameter of the two holes 12a, 12b is preferably greater than the width of the recesses 12, 13.
  • the holes 12a, 12b act as a crack stopper when separating the legs 14, 15.
  • the holes 12a, 12b then make as FIG. 1 or 9 As can be seen, the ends of the forming slot and prevent the crack propagates further when the legs 14, 15 are bent apart.
  • the heald 1 in the FIGS. 8 and 9 illustrated again.
  • the heddle body 2 is formed out of a round wire by flattening the section 9 and providing it with longitudinal groove-like depressions 12, 13.
  • the recess 12 located on the top is parallel to the located on the bottom Recess 13.
  • the flattened portion has the double wire cross section FIG. 4 , This can be like a two-wire strand in the two legs 14, 15 separated to form the opening 16. If the Fadenaugtiv 6 between the legs 14, 15 clamped, it can be secured with adhesive, whereby the stranded wire 1 is completed.
  • the Fadenaugrus 6 is formed as a rectangular ring with pointed ends. Its two lateral grooves 8a and 8b have flanks at an angle to each other. In other words, the grooves 8a and 8b have a triangular cross section.
  • the legs 14, 15 each have a circular cross-section with the surface A5, A6. The sum of the cross-sectional areas A5, A6 again coincides with the cross-sectional area A1 of the cross-section of a shaft leg 10, 11.
  • the adhesive 17 secures the Fadenaugrus 6 and closes the opening 16. He can also penetrate into the groove 8 and hold the legs 14, 15 on the Fadenaugcommun 6.
  • the legs 14, 15 can, as FIG. 11 illustrated, also each have an externally rounded and inwardly in a pointed rib 18, 19 expiring cross-section.
  • the cross-sectional areas A5, A6 in turn are as large as the cross-sectional area A1. Otherwise, the previous description applies accordingly.
  • FIG. 12 shows a preferred embodiment of a jacquard heald 1a
  • the heald body 2 is formed by a metal wire.
  • the thread eye 5 reference is made to the previous description, which also applies here based on the same reference numerals at least preferably.
  • FIG. 12 indicates that the intermediate section 9a is dispensed with.
  • the round shaft legs 10, 11 can pass directly into the diverging legs 14, 15, which hold the Maillon 6 between each other.
  • the heddle body 1 is provided at one end with the eyelet 3, to the formation of a wire portion 31 is bent in the manner of a hairpin by about 180 °.
  • the end of this wire section 31 is connected to the heddle body 2, in particular the shank limb 11, at at least one, but preferably two points 21, 22. At the points 21, 22 welded joints can be formed. Between the two points 21, 22, the end of the wire section 31 may be arranged to extend parallel to the shaft leg 11.
  • a fastening element 23 is preferably provided at the opposite end of the stranded body 2. This is formed for example by a plastic injection part, which is connected to the end of the shaft leg 10.
  • the shank leg 10 may be provided at its end with one or more bends 24, 25, 26 such that it is bent, for example, zig-zag or wavy.
  • the fastening element 23 may be formed, for example, as a plastic injection-molded part and surround this area with a cylindrical portion 27. Thus, a cohesive and / or a positive connection can be created.
  • the fastener 27 may, as FIG. 12 shows a pin-like extension 28 which is provided for anchoring a tension spring 29, for example with a thread 30.
  • the extension 28 preferably has a smaller diameter than the portion 27 and is aligned concentrically with this.
  • the thread 30 is preferably a conical thread.
  • the tension spring 29 is preferably a helical spring made of spring wire.
  • a strand according to the invention is preferably made of a round wire having a central portion 9.
  • This section has an 8-shaped cross-section which is defined by two legs connected together by a thin web.
  • the heddle body 2 can be separated to receive a Fadenaugstedes 6.
  • the FadenaugAN 6 is preferably secured in the resulting opening 16 by adhesive.

Claims (15)

  1. Lisse Jacquart comportant un corps de lisse (2), constitué d'un matériau rond, qui présente un fût (20) doté d'une partie aplatie (9) qui est munie d'une ouverture élargie (16), délimitée par deux branches (14, 15), la surface (A1) de la section ronde du fût (20) correspondant dans une large mesure à la somme des surfaces (A5, A6) des sections des branches (14, 15).
  2. Lisse selon la revendication 1 caractérisée en ce qu'un insert (6) constituant un oeillet pour fil est saisi et maintenu de façon sûre dans l'ouverture (16).
  3. Lisse selon la revendication 1 caractérisée en ce que les deux branches (14, 15) sont courbées à l'écart l'une de l'autre.
  4. Lisse selon la revendication 1 caractérisée en ce que les branches (14, 15) présentent sur leurs côtés intérieurs une structure qui fait saillie en direction de l'ouverture (16).
  5. Lisse selon la revendication 1 caractérisée en ce que les branches (14, 15) présentent une section arrondie.
  6. Lisse selon la revendication 1 caractérisée en ce qu'une partie intermédiaire (9a) aplatie, non fendue se raccorde à l'ouverture élargie (16) à au moins une extrémité axiale.
  7. Lisse selon la revendication 1 caractérisée en ce qu'un moyen d'arrêt de fente (12a, 12b) est ménagé en raccordement avec l'ouverture (16) de préférence sous forme d'au moins un perçage transversal.
  8. Lisse selon la revendication 7 caractérisée en ce que le moyen d'arrêt de fente (12a, 12b) se présente sous la forme d'au moins un perçage transversal.
  9. Lisse selon la revendication 1 caractérisée en ce qu'entre la partie aplatie (9) et les branches (10, 11) de fût une transition continue sans paliers est ménagée dans chaque cas.
  10. Lisse selon la revendication 1 caractérisée en ce que le matériau rond est un fil rond en métal ou en matière de synthèse.
  11. Lisse selon la revendication 1 caractérisée en ce que l'ouverture (16) est obtenue par déformation plastique sans enlèvement de copeaux.
  12. Lisse selon la revendication 1 caractérisée en ce que le corps (2) de lisse présente à au moins une extrémité un oeillet (3) qui est constitué d'une partie de fil (31) recourbée et soudée au corps (2) de lisse à au moins un emplacement (21, 22).
  13. Lisse selon la revendication 1 caractérisée en ce que le corps (2) de lisse est muni d'au moins une courbure (24, 25, 26) à au moins une extrémité.
  14. Lisse selon la revendication 13 caractérisée en ce qu'un élément de fixation (23) destiné à la fixation d'un ressort de traction (29) est disposé à l'extrémité du corps (2) de lisse munie de la courbure (24, 25, 26).
  15. Lisse selon la revendication 14 caractérisée en ce que l'élément de fixation (23) destiné à la fixation du ressort de traction (29) présente un prolongement axial du genre tourillon (28) comportant un filetage (30).
EP09011759A 2008-09-23 2009-09-15 Lisse Jacquard dotée d'une zone visuelle de fil imprégnée Active EP2166139B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09011759A EP2166139B1 (fr) 2008-09-23 2009-09-15 Lisse Jacquard dotée d'une zone visuelle de fil imprégnée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08164922A EP2166138A1 (fr) 2008-09-23 2008-09-23 Lisse Jacquard dotée d'une zone d'oeil gaufré
EP09011759A EP2166139B1 (fr) 2008-09-23 2009-09-15 Lisse Jacquard dotée d'une zone visuelle de fil imprégnée

Publications (2)

Publication Number Publication Date
EP2166139A1 EP2166139A1 (fr) 2010-03-24
EP2166139B1 true EP2166139B1 (fr) 2012-08-29

Family

ID=40796291

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08164922A Withdrawn EP2166138A1 (fr) 2008-09-23 2008-09-23 Lisse Jacquard dotée d'une zone d'oeil gaufré
EP09011759A Active EP2166139B1 (fr) 2008-09-23 2009-09-15 Lisse Jacquard dotée d'une zone visuelle de fil imprégnée

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08164922A Withdrawn EP2166138A1 (fr) 2008-09-23 2008-09-23 Lisse Jacquard dotée d'une zone d'oeil gaufré

Country Status (4)

Country Link
US (1) US7963301B2 (fr)
EP (2) EP2166138A1 (fr)
JP (1) JP5518412B2 (fr)
CN (1) CN101713114B (fr)

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CN101942727B (zh) * 2010-07-09 2011-10-19 江苏裕兴薄膜科技股份有限公司 聚酯薄膜综丝及其制备方法
KR101223288B1 (ko) 2011-01-06 2013-01-16 윤종열 직기용 종광의 결합구조
CN102719966A (zh) * 2012-07-06 2012-10-10 常熟市方园纺织器材厂 织布机的综片
EP2730687B1 (fr) 2012-11-08 2015-09-16 Groz-Beckert KG Lisse pour un métier à tisser, notamment un métier à tisser circulaire
US9328435B2 (en) * 2013-11-08 2016-05-03 Deertex, Inc. Functional weaving vamp fabric
CN104099712A (zh) * 2014-07-31 2014-10-15 安徽华茂纺织股份有限公司 一种无浆织机的停经丝装置
FR3027315B1 (fr) * 2014-10-16 2019-04-26 Staubli Lyon Lisse pour metier a tisser et metier equipe d'une telle lisse
FR3027313B1 (fr) * 2014-10-16 2016-11-18 Staubli Lyon Lisse pour metier a tisser, metier a tisser equipe d'une telle lisse et procede de fabrication d'une telle lisse
TWM493278U (zh) * 2014-10-21 2015-01-11 Deertex Inc 具有透氣耐磨梭織鞋面之鞋類組件
JP6350210B2 (ja) 2014-10-27 2018-07-04 株式会社豊田自動織機 樹脂製ヘルド及び樹脂製ヘルドの製造方法
EP3591104B1 (fr) * 2018-07-05 2021-03-10 Groz-Beckert KG Lisse
EP3597805A1 (fr) 2018-07-19 2020-01-22 Groz-Beckert KG Lisse à tisser

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GB807945A (en) 1956-05-25 1959-01-28 Degussa Steel wire heald
US3088496A (en) * 1960-11-08 1963-05-07 Cambridge Wire Cloth Loom harness
CH514700A (de) 1968-10-18 1971-10-31 Braecker Ag Verfahren zum Herstellen von Weblitzen
CH601532A5 (fr) * 1977-02-28 1978-07-14 Grob & Co Ag
JPS57117646A (en) 1981-01-06 1982-07-22 Kiyoueki Kinzoku Seisakusho Kk Wire heald
US5052446A (en) * 1989-06-12 1991-10-01 Sulzer Brothers Limited Thermoplastic heddle with braided fiber tube reinforcement
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CH692587A5 (de) * 1997-09-16 2002-08-15 Braecker Ag Stabförmiges Fadenführungselement für Textilmaschinen, insbesondere Weblitze, und Verfahren zur Herstellung desselben.
FR2776676B1 (fr) 1998-03-31 2000-05-26 Staubli Lyon Procede de fabrication d'une lisse, lisse et dispositif de formation de la foule pour metier a tisser
CH695240A5 (de) 2001-02-28 2006-02-15 Braecker Ag Weblitze und Verfahren zur Herstellung einer Weblitze.
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DE10330304B4 (de) * 2003-06-17 2005-10-27 Groz-Beckert Kg Verbesserte Weblitze
DE10342577B4 (de) * 2003-09-15 2005-07-21 Groz-Beckert Kg Litze mit vermindertem Spiel
DE102005030632B4 (de) * 2005-07-01 2009-07-30 Groz-Beckert Kg Fadenschonende Weblitze
FR2891282B1 (fr) 2005-09-27 2007-11-16 Staubli Lyon Sa Procede de fabrication d'une lisse, lisse de mecanisme de formation de la foule et metier a tisser incorporant une telle lisse.
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EP1908863B1 (fr) * 2006-10-06 2009-04-08 Groz-Beckert KG Lisse pour métier à tisser Jacquard

Also Published As

Publication number Publication date
US20100084040A1 (en) 2010-04-08
JP5518412B2 (ja) 2014-06-11
CN101713114B (zh) 2017-03-01
EP2166139A1 (fr) 2010-03-24
JP2010077588A (ja) 2010-04-08
EP2166138A1 (fr) 2010-03-24
CN101713114A (zh) 2010-05-26
US7963301B2 (en) 2011-06-21

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