EP0304985A1 - Dispositif pour la formation de la foule dans les métiers à tisser - Google Patents

Dispositif pour la formation de la foule dans les métiers à tisser Download PDF

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Publication number
EP0304985A1
EP0304985A1 EP88201732A EP88201732A EP0304985A1 EP 0304985 A1 EP0304985 A1 EP 0304985A1 EP 88201732 A EP88201732 A EP 88201732A EP 88201732 A EP88201732 A EP 88201732A EP 0304985 A1 EP0304985 A1 EP 0304985A1
Authority
EP
European Patent Office
Prior art keywords
pins
above mentioned
heddles
guides
needles
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.)
Withdrawn
Application number
EP88201732A
Other languages
German (de)
English (en)
Inventor
Joris Van Severen
Norbert Vandendriessche
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.)
N.V. FLORIN
Original Assignee
Nv Florin
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 Nv Florin filed Critical Nv Florin
Publication of EP0304985A1 publication Critical patent/EP0304985A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards

Definitions

  • This invention concerns a device for making a shed in weaving-machines, in other words a device for putting the so-called heddles in a weaving-machine alternatively in an upper and in a lower position.
  • the invention concerns a device that is intended to be applied in pattern-weaving and in which all heddles can be operated separately.
  • jacquard-machine In pattern-weaving, it is known that a jacquard-machine is employed to operate the heddles separately. Such jacquard-mechanisms, controlled by punched cards or the like, are very bulky. Jacquard-machines are hence set up at a relatively great height above the weaving machines, whereby separate connections from the jacquard-machine to the different heddles are provided for. Such machines present the disadvantage that they are not very practical.
  • the present invention hence aims to provide for a device, that can be employed in pattern-weaving, and that does not present the above disadvantage.
  • the device presented hereafter according to the invention can indeed be set up immediately above the heddles or the frame of a weaving-machine.
  • the invention also aims at a device for making a shed, whereby the movement of the heddles can be controlled electronically.
  • the time-consuming manufacture of punched cards hereby becomes unnecessary, as a designed pattern or motif can simply be scanned by means of a scanner, whereby the values are stocked in the memory and are automatically employed for the electronic control of the operation of the heddles.
  • the invention hence concerns a device for making a shed in weaving-machines, with as characteristic that it mainly consists of primary means that are connected with the heddles of the warp-threads or are part of same; of secondary means that can move to and fro, and by which the primary means can be moved; and controllable locking means that can act together with the primary means in order to put and/or to keep the latter in a given position.
  • the device provides for a combination of the above mentioned primary means, whereby the latter consist of sliding pins that are connected at one end with the heddles; of the above mentioned secondary means, whereby the latter consist of a body provided with guides in which the pins can slide; of a supporting-plate, placed between the warp-threads out of which the shed will be made and the above mentioned body, and provided with apertures allowing the passage of the heddles and/or the connections between the pins and the heddles; of the above mentioned locking-means, whereby the latter are mounted permanently on the above mentioned body in such a way that they can lock the pins with respect to this body; and of means that force the heddles and the pins into a well-defined position, in such a way that the pins, when unlocked, rest against the supporting- plate with their ends that are connected to the heddles; whereby each guide, pin and heddle that belong together are in line with one another.
  • the above mentioned locking-means are preferably controlled electro-magnetically.
  • the device is preferably built up in modules, which enables it to be extended and/or adapted simply in terms of the amount of heddles that are to be controlled.
  • the device according to the invention mainly consists of primary means 1 that are connected to, or are part of, the heddles 2 through which the warp-threads 3 are led; of secondary means 4 that can move to and fro, in this case along arrow P, by which the primary means 1 can be moved; and of controllable locking means 5 that can act together with the primary means in 1 in order to put or to keep the latter, together with the above mentioned secondary means 4, in a given position.
  • the locking means 5 are mounted on the above mentioned secondary means 4, whereby the primary means 1 can or cannot be locked with respect to the secondary means 4.
  • the primary means 1 consist of pins 8 that are connected at one end 9, directly or indirectly, with the heddles 2.
  • the pins 8 are provided with radial recesses 10, that are preferably situated in the neighbourhood of the opposite end 11.
  • the above mentioned secondary means 4 mainly consist of a body 12, provided with guides 13, e.g. bores, the lot made in such a way that the above mentioned pins 8 can slide therein.
  • the controllable locking means 5 mainly consist, in the embodiment shown, of movable needles 14, which also can slide by means of guides or apertures 15 in the above mentioned body 12, in such a way that one end 16 of them can be inserted radially into the above mentioned guides 13 of the pins 8, and in such a way that they hence can act together with the recesses 10 in the pins 8.
  • the locking means 5 contain a drive mechanism 17 in order to put the above mentioned needles 14 in the desired position; thereby, this mechanism can of course be of any nature, but preferably provides for moving the needles 14 electro-magnetically, combined or not with the use of elastic elements like springs.
  • Figures 1 and 2 hence show, on the one hand, elastic means consisting of springs, particularly compression springs 18, and on the other hand, solenoids 19 that act together with the needles 14.
  • the springs 18 press the needles 14 towards the guides 13, while, by means of the excitation of the solenoids 19, the needles 14 can be moved counter the force of the springs 18, and thus can be drawn with their ends 16 out of the guides 13, or can be kept out of them.
  • the above mentioned supporting means 7 consist, in the embodiment shown, of a supporting-plate 21, against which the pins 8 can rest with their ends 9, whereby this supporting-plate 21 is provided with apertures 22 allowing a free passage of the heddles 2 and/or of the connections between the heddles 2 and the pins 8.
  • the guides 13, the pins 8, the heddles 2 and the apertures 22 in the supporting-plate are preferably all in line.
  • the operation of the device can easily be derived from figures 1 and 2.
  • the body 12 that moves up and down stands respectively in its upper and in its lower position.
  • FIG 2 also shows the lease and the shed 23 that is made, into which the weft 24 can be fed in the usual manner and can subsequently be beaten up by means of the reed 25.
  • the body 12 is then moved back downwards, whereafter, by exciting the appropriate solenoid 19, the desired pins 8 and corresponding heddles 2 are raised anew on a following upward move.
  • a weaving-machine contains a large amount of heddles 2, that are placed closely alongside one another.
  • the device according to the invention directly on the weaving machine, whereby the heddles 2 and the above mentioned pins 8 are always in line, it is obvious that the pins 8 must also be situated closely alongside one another.
  • the pins 8 are placed in rows, respectively 26A, 26B, 26C, etc...
  • locking means 5 A, B, C, ...) can act together with all pins 8 (A, B, C, ...)
  • the pins 8 are, at rest, arranged with their loose ends 11 (A, B, C, 7) in a stepped pattern, whereby the widest base of this stepped pattern is placed closest to the warp-threads 3.
  • This stepped pattern allows the pins 8A of the first row 26A not to hinder the mounting of the locking means 5B for the pins 8B of the second row 26B. It is hence obvious that the above mentioned locking means 5 (A, B, C, ...) must be placed one above another for each separate row 26A, 26B, etc., as shown in figure 3.
  • the body 12 shall also preferably be made according to a stepped pattern.
  • the stepped pattern can of course be provided for on both sides 27 and 28 of the body 12, in such a way that it forms a pyramidal construction.
  • the body 12 is built up in modules out of plates or blocks 29 A, B, C, etc., placed onto one another and provided with the above mentioned guides 13, whereby the latter are of course situated in line with one another.
  • the plates 29 A, B, C, ... preferably follow the above mentioned stepped pattern and can at will be installed in various amounts, according to the number of heddles 2, particularly according to the number of rows 26, on the heddles 2 that are to be controlled.
  • the body 12 is preferably also built up out of an intermediate layer 30 situated under the lowest plate 29A and a bottom 31.
  • the locking means that can act together with a same row of pins are respectively incorporated in a U-shape or U-profile 32, whereby these U-profiles 32 are mounted against the side 33, respectively the sides, of the body 12 and/or of the corresponding layers 29.
  • the locking means 5 and especially the drive mechanisms 17 that correspond to a same row 26, in other words that are mounted in a same U-shape 32, are successively set out of square with respect to one another, as shown in figure 5.
  • figure 4 shows solely the locking means 5 situated at the bottom of the corresponding U-shape 32.
  • the fastening of the locking means 5 in the various U-shapes 32 is shown in detail in figures 4 to 6.
  • the solenoids 19 and the compression springs 18 are placed in line with one another between the arms 34 and 35 of the U-shape 32, while the needles 14 extend respectively through the springs 18 and the solenoids 19.
  • the needles 14 are each provided with a fixed flange 36 which forms a stop for the compression springs 18, whereby this flange 36 can act together with the inside wall 37 being at the same time the arm 35 of the U-shape, in such a way that, in case the solenoids 19 are not excited, the needles 14 can extend with their ends 16 up to the middle of the guides 13.
  • the opposite ends 38 of the above mentioned needles 14 can act together with the ends 39 of axially movable positioning pins 40, whereby the latter are screwed for that purpose into the arm 34 of the U-shape 32 by means of an adjusting screw.
  • the adjustment of the positioning pins 40 determines how far the needles 14 can be withdrawn when the respective solenoids 19 are excited.
  • the positioning pins are preferably adjusted in such a way that the needles 14, in withdrawn position, are situated just outside the corresponding guides 13.
  • each pin 8 is preferably limited, one the one side, by a radial wall 42 and, on the other side, by a slanting or conical wall 33.
  • the radial wall 42 is above the recess 10.
  • the pins 8 have a bevelled, rounded off or conical top 44.
  • the needles 14, which preferably have a circular section, are provided at their ends 16, on the one hand with a flattening 45 that can act together with the radial wall 42, and on the other hand with a bevel or rounding-off 46 that can act together with the conical wall 43.
  • a flattening 45 that can act together with the radial wall 42
  • a bevel or rounding-off 46 that can act together with the conical wall 43.
  • the needles 14 In order to obtain that the flattening 45 is always situated in a same plane, the needles 14 must be prevented to rotate. According to the invention this is obtained by carrying out the above mentioned flanges 36 in the form of a hexagonal plate, as shown in figure 6, in such a way that the sides of these flanges 36 touch one another and lock one another avoiding rotation.
  • the U-shapes 32 are preferably fastened to the body 12 and/or to the plates 29 by means of screws 45 that fit into the apertures 48 in the arms 35 of the U-shape 32.
  • Such a dismountable fastening offers the advantage that, in case one of the locking means 5 breaks down during weaving, one can install a new module, consisting of a new U-form 32, in replacement of the defective module, in a relatively short time.
  • aperatures 48, holes or apertures 49 are made in the second arm 34 of the U-shape 32, allowing the passage of a screw-driver for loosening, respectively fastening the screws 47.
  • Figures 6 to 8 show the operation if a pin 8 must remain in its lower position.
  • the solenoid 19 is excited, by which the needle 14 is drawn against the positioning pin 40.
  • no locking occurs between the needle 14 and the pin 18 during the upward motion of the body 12, so the pin 18 remains in its lower position.
  • the solenoid 19 is not excited, whereby the needle 14 is pressed against the pin 8 by means of the compression spring 18.
  • the needle 14 slides into the recess 10.
  • the flattening 12 and the radial wall 42 come into contact with one another, whereby the pin 8 is also raised, as further shown in figure 11.
  • the excited solenoids 19 can be disconnected again after the moment that the needles 14 are above the ends 11 of the pins 8. While the body 12 returns downwards, the corresponding needles 14 are automatically pushed back into the apertures 15 by the concurrence of the bevels or rounding-offs 46 with which they are provided, and of the bevelled and/or rounded-off tops of the pins 8.
  • the positioning pins 40 and the needles 14 form together a core for the solenoids 19.
  • a maximal magnetic force of attraction, exerted on the needles 14 can be guaranteed with a minimal power dissipation.
  • the wiring that leads to the different solenoids 19 is preferably carried out in the form of a printed circuit or print not shown in the figures, that is fastened on the bottom 50 of the U-shape 32, and from where electrical connections to the solenoids 19 can be provided for.
  • the needles 14 are preferably thermically nickel-plated, while, in order to avoid crater-forming, the pins 8 are both cemented and thermically nickel-plated.
  • the mechanism for moving the body 12 can be of any shape.
  • the body 12 is preferably fastened to a frame that is moved up and down by means of a cam mechanism, whereby the latter is carried out in such a way that the body 12 is kept as long as possible in its upper position.
  • a cam mechanism can be carried out by a craftsman in any way, and as the nature of this motion mechanism does not form the essence of this invention, this is hence not described any further in detail.
  • the supporting-plate 21 is not a necessity.
  • the means 6 can be carried out in such a way that they can at the same time provide for the limitation of the downward movement of the pins 8.
  • the above mentioned secondary means 4 that can move to and fro need not necessarily consist of the body 12, but can for instance also by formed by the supporting-plate 21, in such a way that, by the movement of the latter, the pins are pushed upwards into the body 12 that is then mounted rigidly, whereafter, when this supporting-plate 21 moves down again, the desired pins 8 are kept in the upper position by engaging the locking means 5, while the other pins 8 move downwards together with the supporting-plate 21.
  • the device as shown in figure 13 also enables forming a double shed 3-3, respectively 3A-3A (e.g. for carpet material), if one allows two different locking-needles 14 to act on a same pin 8, in a double constuction, by providing for two successive plates 29, respectively 29A1 and 29A2, 29B1 and 29B2, ... . If one does not excite any solenoid 19 of these locking-needles, then the pin 8 is taken along by the upper locking-needle 14 in plate 29A2. If one only excites the upper solenoid, then the pin 8 is taken along by the lower locking-needle 14 in plate 29A1, and will thus only perform part of the up-and-downward movement. If one excites both solenoids 19, then the pin 8 will not be taken along.
  • 3A-3A e.g. for carpet material

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP88201732A 1987-08-26 1988-08-15 Dispositif pour la formation de la foule dans les métiers à tisser Withdrawn EP0304985A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8700946A BE1000884A3 (nl) 1987-08-26 1987-08-26 Inrichting voor het vormen van een gaap bij weefmachines.
BE8700946 1987-08-26

Publications (1)

Publication Number Publication Date
EP0304985A1 true EP0304985A1 (fr) 1989-03-01

Family

ID=3882826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88201732A Withdrawn EP0304985A1 (fr) 1987-08-26 1988-08-15 Dispositif pour la formation de la foule dans les métiers à tisser

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EP (1) EP0304985A1 (fr)
BE (1) BE1000884A3 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675826A1 (fr) * 1991-04-29 1992-10-30 Bailly Therese Dispositif pour former la foule dans un metier a tisser.
US5183081A (en) * 1992-02-07 1993-02-02 Asten Group, Inc. Weave shed formation apparatus for end reweaving type joining apparatus
GB2271361A (en) * 1992-09-05 1994-04-13 Bonas Machine Co Heald control system
WO1994009197A1 (fr) * 1992-07-03 1994-04-28 Textilma Ag Dispositif de commande pour un fil d'une machine textile
WO1995006767A1 (fr) * 1993-09-01 1995-03-09 Maqtex Máquinas Texteis Indústria E Comércio Ltda-Me Equipement de formation de la foule dans un metier a tisser rectiligne
EP0678602A1 (fr) * 1994-04-19 1995-10-25 Bonas Machine Company Limited Mécanique jacquard
GB2305444A (en) * 1995-09-26 1997-04-09 Brian Beech Heald control mechanism for a loom
FR2746422A1 (fr) * 1996-03-22 1997-09-26 Dentelles Darquer Sa Dispositif electromagnetique pour l'actionnement automatise des aiguilles d'une mecanique jacquard
WO1998024955A1 (fr) * 1996-12-03 1998-06-11 Textilma Ag Dispositif pour la commande du mouvement transversal d'au moins un fil dans une machine textile
FR2772792A1 (fr) * 1997-12-24 1999-06-25 Staubli Sa Ets Boitier de positionnement d'actionneurs electriques pour la formation de la foule et metier a tisser
FR2772794A1 (fr) * 1997-12-24 1999-06-25 Staubli Sa Ets Mecanique d'armure du type jacquard et metier a tisser equipe d'une telle mecanique
FR2794140A1 (fr) * 1999-05-31 2000-12-01 Staubli Sa Ets Mecanique d'armure de type jacquard et metier a tisser equipe d'une telle mecanique
WO2001086045A1 (fr) * 2000-05-08 2001-11-15 Micael Schmitz Elektronic Ab Dispositif de deplacement de fils de chaines formant la foule dans un metier
WO2005028723A3 (fr) * 2003-09-20 2005-09-09 First Spa Procede d'accouplement utilise dans le domaine de la technique textile
WO2008116325A1 (fr) * 2007-03-27 2008-10-02 Textilma Ag Dispositif de commande du mouvement transversal de fils de chaîne d'un métier à tisser le textile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024897B (de) * 1953-03-09 1958-02-20 Trikotfabriken J Schiesser A G Vorrichtung zum Bilden des Faches auf Webmaschinen
FR1268994A (fr) * 1960-10-05 1961-08-04 Perfectionnements aux mécanismes pour la formation du pas
FR1477674A (fr) * 1966-03-08 1967-04-21 Leclercq Dupire S A Perfectionnements à la mécanique jacquard
DE2203925A1 (de) * 1972-01-28 1973-08-02 Vaupel Gustav Adolf Steuervorrichtung fuer die laengsbewegung von fadenfuehrungselementen in textilmaschinen, wie webmaschinen
DE2330420A1 (de) * 1973-03-29 1974-10-10 Sulzer Ag Jacquardmaschine
GB1467231A (en) * 1974-01-18 1977-03-16 Batty M Shedding mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024897B (de) * 1953-03-09 1958-02-20 Trikotfabriken J Schiesser A G Vorrichtung zum Bilden des Faches auf Webmaschinen
FR1268994A (fr) * 1960-10-05 1961-08-04 Perfectionnements aux mécanismes pour la formation du pas
FR1477674A (fr) * 1966-03-08 1967-04-21 Leclercq Dupire S A Perfectionnements à la mécanique jacquard
DE2203925A1 (de) * 1972-01-28 1973-08-02 Vaupel Gustav Adolf Steuervorrichtung fuer die laengsbewegung von fadenfuehrungselementen in textilmaschinen, wie webmaschinen
DE2330420A1 (de) * 1973-03-29 1974-10-10 Sulzer Ag Jacquardmaschine
GB1467231A (en) * 1974-01-18 1977-03-16 Batty M Shedding mechanism

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675826A1 (fr) * 1991-04-29 1992-10-30 Bailly Therese Dispositif pour former la foule dans un metier a tisser.
US5355911A (en) * 1992-02-07 1994-10-18 Asten Group, Inc. Weave shed formation apparatus with individual heddle selector control
US5183081A (en) * 1992-02-07 1993-02-02 Asten Group, Inc. Weave shed formation apparatus for end reweaving type joining apparatus
WO1993016220A1 (fr) * 1992-02-07 1993-08-19 Asten Group, Inc. Appareil destine a former le pas
WO1994009197A1 (fr) * 1992-07-03 1994-04-28 Textilma Ag Dispositif de commande pour un fil d'une machine textile
GB2271361B (en) * 1992-09-05 1996-10-02 Bonas Machine Co Heald control system
GB2271361A (en) * 1992-09-05 1994-04-13 Bonas Machine Co Heald control system
WO1995006767A1 (fr) * 1993-09-01 1995-03-09 Maqtex Máquinas Texteis Indústria E Comércio Ltda-Me Equipement de formation de la foule dans un metier a tisser rectiligne
US5676179A (en) * 1993-09-01 1997-10-14 Maqtex Maquinas Texteis Industria E Comercio Ltda-Me Electronically controlled shedding mechanism
EP0678602A1 (fr) * 1994-04-19 1995-10-25 Bonas Machine Company Limited Mécanique jacquard
GB2305444A (en) * 1995-09-26 1997-04-09 Brian Beech Heald control mechanism for a loom
FR2746422A1 (fr) * 1996-03-22 1997-09-26 Dentelles Darquer Sa Dispositif electromagnetique pour l'actionnement automatise des aiguilles d'une mecanique jacquard
WO1997036033A1 (fr) * 1996-03-22 1997-10-02 Dentelles Darquer (S.A.) Dispositif electromagnetique pour l'actionnement automatise des aiguilles d'une mecanique jacquard
CN1070941C (zh) * 1996-03-22 2001-09-12 达基耶尔花边股份有限公司 提花织机针的自动启动电磁装置
US6105628A (en) * 1996-03-22 2000-08-22 Dentelles Darquer Electromagnetic device for automated jacquard machine needle actuation
US6079455A (en) * 1996-12-03 2000-06-27 Textilma Ag Device for controlling the transverse movement of at least one thread in a textile machine
WO1998024955A1 (fr) * 1996-12-03 1998-06-11 Textilma Ag Dispositif pour la commande du mouvement transversal d'au moins un fil dans une machine textile
FR2772792A1 (fr) * 1997-12-24 1999-06-25 Staubli Sa Ets Boitier de positionnement d'actionneurs electriques pour la formation de la foule et metier a tisser
US6058983A (en) * 1997-12-24 2000-05-09 Staubli Faverges Jacquard-type weaving mechanism and loom equipped with such a weaving mechanism
EP0926280A1 (fr) * 1997-12-24 1999-06-30 Staubli Faverges Boítier de positionnement d'actionneurs électriques pour la formation de la foule et métier à tisser
EP0926282A1 (fr) * 1997-12-24 1999-06-30 Staubli Faverges Mécanique d'armure du type Jacquard et métier à tisser équipé d'une telle mécanique
US6105629A (en) * 1997-12-24 2000-08-22 Bourgeaux; Pierre Housing for electric shedding actuators
FR2772794A1 (fr) * 1997-12-24 1999-06-25 Staubli Sa Ets Mecanique d'armure du type jacquard et metier a tisser equipe d'une telle mecanique
US6216750B1 (en) 1999-05-31 2001-04-17 Staubli Faverges Weaving loom panel support structure for jacquard selectors
EP1069218A1 (fr) * 1999-05-31 2001-01-17 Stäubli Faverges Mécanique d'armure de type jacquard et métier à tisser équipé d'une telle mécanique
FR2794140A1 (fr) * 1999-05-31 2000-12-01 Staubli Sa Ets Mecanique d'armure de type jacquard et metier a tisser equipe d'une telle mecanique
WO2001086045A1 (fr) * 2000-05-08 2001-11-15 Micael Schmitz Elektronic Ab Dispositif de deplacement de fils de chaines formant la foule dans un metier
WO2005028723A3 (fr) * 2003-09-20 2005-09-09 First Spa Procede d'accouplement utilise dans le domaine de la technique textile
WO2008116325A1 (fr) * 2007-03-27 2008-10-02 Textilma Ag Dispositif de commande du mouvement transversal de fils de chaîne d'un métier à tisser le textile
US7806146B2 (en) 2007-03-27 2010-10-05 Textilma Ag Device for controlling the transverse movement of the warp threads of a textile weaving machine
CN101641467B (zh) * 2007-03-27 2011-04-20 泰克斯蒂尔玛股份公司 用于控制织机的经纱的横向运动的装置

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