EP0823501A1 - Method and device for the selection of the mobile hooks of a shedding mechanism and jacquard loom - Google Patents

Method and device for the selection of the mobile hooks of a shedding mechanism and jacquard loom Download PDF

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Publication number
EP0823501A1
EP0823501A1 EP97420133A EP97420133A EP0823501A1 EP 0823501 A1 EP0823501 A1 EP 0823501A1 EP 97420133 A EP97420133 A EP 97420133A EP 97420133 A EP97420133 A EP 97420133A EP 0823501 A1 EP0823501 A1 EP 0823501A1
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EP
European Patent Office
Prior art keywords
hook
hooks
dead center
center position
force
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Granted
Application number
EP97420133A
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German (de)
French (fr)
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EP0823501B1 (en
EP0823501B2 (en
Inventor
Jean-Paul Froment
Da rio Bassi
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Staeubli Lyon SA
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Staeubli Lyon SA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/16—Verdol or other jacquards having intermediate power-operated needles between reading needles and lifting-hooks
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types

Definitions

  • the invention relates to a method and a device for selection of movable hooks of a mechanism for forming the crowd of a Jacquard type loom and a loom weaving machine of the Jacquard type comprising such a device.
  • a mechanism crowd training selectively lifts smooth comprising an eyelet through which passes a chain wire, this wire being located, depending on the position of a hook to which is fixed the upper end of the arm, above or in below the weft thread moved by the loom.
  • leveling selection levers i.e. provide that, when each reciprocating movement, a hook located near the top dead center of its path moves the lower end the corresponding selection lever so that the upper end of the lever is pressed against the electromagnet. This induces a force which opposes the movement of the movable hook, near the top dead center of its trajectory, this retention force being due to friction applied to the hook and to the inertia of moving parts.
  • the mechanical properties of the harness must therefore be provided to allow the application of this vertical force extra down, which increases its cost by manufacturing, as well as that of the mechanical devices reminder that it includes and, more generally, mechanical parts which must be oversized. Of more, this increases the wear phenomena of the whole of the Jacquard mechanics and harness. In addition, efforts necessary to overcome the friction forces are likely to generate vibrations in the business, these vibrations which can have negative consequences on the functioning and the lifetime of the mobile members of the loom.
  • the main object of the invention is to solve these problems and to provide a selection process and device mobile hooks of the loom allowing optimize the sizing of the harness and parts mechanical drive or elastic return, while retaining the effectiveness of a selection system with leveling.
  • the invention relates to a method of selection of movable hooks of a mechanism for forming the crowd of a Jacquard type loom including at minus a hook moved by a knife between a position of top dead center, in or near which the hook can be immobilized by a selection device, and a bottom dead center position, characterized in that it consists of exercise on said hook, in its top dead center position or near it, an effort to bring said hook to its bottom dead center position.
  • the forces thus exerted compensate friction and inertial forces and it is no longer necessary that the harness exerts a force on the movable hooks sufficient to overcome them, which simplifies and lighten the construction of the loom and harness.
  • the invention also relates to a device for implement the method of the invention and, more specifically, a device for selecting the movable hooks of a crowd formation mechanism of a type loom Jacquard comprising at least one hook moved by a knife between a top dead center position, in or near which the hook can be immobilized by a device selection, and a bottom dead center position, characterized in that it comprises elastic stop means of said hook in its top dead center position, said means being capable of exert on said hook an effort tending to bring said hook to its bottom dead center position.
  • the device of the invention therefore makes it possible to cancel appreciably the effect of friction and inertia forces applied to the hook when it is in its stitch position dead high or near it.
  • the effort exerted by the elastic stop compensates for the inertia of the hook himself.
  • the invention makes it possible to apply directly on the movable hook the force which is necessary to move it down from neutral top of its trajectory.
  • the device includes two hooks moved alternately by two reciprocating knives in opposition to phase, the elastic stop means being able to cooperate with said two hooks.
  • the elastic stop means being able to cooperate with said two hooks.
  • the elastic stop means comprise a lever able to be moved, against the force of a spring, by the hook when it reaches its neutral position high.
  • the force exerted on the hook in its point position dead high, or close to it, according to the invention is, in this case, due to the elastic force of the spring.
  • the lever is capable of being moved by the hooks when these reach their top dead center position respective.
  • the elastic stop means may include a spring torsion.
  • This torsion spring can be in direct contact with the crowd formation hooks, which allows to obtain, with a very low cost, the desired function.
  • the invention finally relates to a loom of the type Jacquard including a selection device as above described.
  • a chain ply 1 comes from a beam 2.
  • Each warp thread passes through the eyelet 3 has a smooth 3 intended to open the pitch to allow the passage of a pick in order to constitute the fabric which is wound on a spool 4.
  • the lower end of each heddle is connected to the frame of the loom by a tension spring 5, while its upper end is secured to an arch 6.
  • the arches are raised and lowered by means of a formation mechanism. the crowd referenced 7.
  • the crowd formation mechanism comprises a funicular member 8 at each end of which is associated a hook 9.
  • the hooks include a side beak 9 a capable of cooperating with knives 10 animated by alternative vertical movements in phase opposition.
  • the funicular element 8 passes around a first pulley 11 of a spreader 12 whose second pulley 13 is surrounded by one of the arches 6.
  • the end of the latter opposite to that which is connected to the heddle 3 is anchored to a fixed point 14 of the machine frame.
  • the upper part of the mechanism 7 is provided with retaining hooks produced in the form of levers 15 and belonging to a selection device.
  • the levers 15 are associated with a single electromagnet 16, so that, when the electromagnet is energized, the levers are moved towards the center or kept pressed against the electromagnet 16 after having been moved by a hook 9.
  • the curved ends of the lower branches 15 has levers 15 cooperate with the upper curved ends 9 b of the hooks 9 in order to immobilize them in their top dead center position or close to it, in the situation in which is represented the hook on the left side of Figure 2 while the hook on the right side is shown in the bottom dead center position.
  • each lever 15 is articulated around a pivot 18 and comprises a lower branch 15 a intended to cooperate with the upper spout 9 b of a hook 9 and an upper branch 15 b intended to be moved or held in position by the electromagnetic force generated by the electromagnet 16.
  • the upper branch 15b of each lever 15 is kept away from the electromagnet 16 by a spring 19 which is compressed when the upper beak 9 b of the hook 9 moves the lower end of the branch 15 a of the lever 15 when the hook 9 arrives in its top dead center position.
  • the hook 9 In the position of FIG. 3, the hook 9 is immobilized in position because it cannot descend under the effect of the traction exerted on it by the funicular element 8 due to the blocking produced by the lever 15 under the effect of the spring 19.
  • the hook 9 At each arrival of the knife 10 at the top dead center of its trajectory, the hook 9 is slightly raised, so that its upper beak 9 b escapes the branch 15 a of the lever 15. If the electro- magnet 16 is activated at this instant, the branch 15 a is kept apart from the beak 9 b and does not oppose the movement of the beak 9 downwardly pressing on the knife 10. On the contrary, if the electromagnet 16 is not activated, the spring 19 pushes the lever 15 back to its position of engagement with the spout 9 b .
  • the hook 9 remains immobilized as long as the electromagnet 16 is not activated.
  • the top dead center position of the hook 9 is located above the high position of Figure 3. Indeed, the knife 10 pushes the hook 9 upwards to release the hook 9 b relative to the end of the branch 15 a of the lever 15.
  • the hook 9 is in contact with a stop 20 formed by a curved lever provided with two extensions 20 a and 20 b able to bear against the hooks 9 when they are in their top dead center position or close to it.
  • the stop or lever 20 rests on two axes 21 and 22 fixed relative to the housing of the shedding mechanism 7.
  • the lever 20 is supported on the axes 21 and 22 by a spring 23 disposed above the lever 20, c 'that is to say on the side thereof opposite the axes 21 and 22.
  • the movement of the knife 10 moves the lever 20 to the position shown in Figure 4 against the force of the spring 23.
  • the lever 20 constitutes a elastic stop for the movement of the hook 9.
  • the hook 9 undergoes a horizontal force F 0 on the part of the lower branch 15 a of the lever 15, this force being due, inter alia, to the force generated by the spring 19.
  • the hook 9 is subjected to a frictional force F 1 of the branch 15 a on itself and to a frictional force F 2 , also directed upwards, due to its friction on a guide rail 24 belonging to the structure of the mechanism 7.
  • the forces F 1 and F 2 are substantially proportional to the force F 0 .
  • an inertial force proportional to the mass of the hook 9 is opposed to its downward movement.
  • the hook 9 undergoes a force F 3 exerted by the end 20 a of the lever 20 due to the compression of the spring 23. Given the location of the lever 20, the force F 3 is exerted on the hook 9 only when it is in the vicinity of the top dead center of its trajectory, so that the movement of the hook is not modified by the presence of the lever 20 over most of its trajectory .
  • the funicular element 8 should no longer exercise a force on hook 9 when it starts in its stroke down.
  • yoke 6 should no longer exert such an effort; this is why the spring 5 which appears in Figure 1 can be sized only for absorb the forces due to the tension of the warp threads, friction against the fixed parts of the loom and inertia arches and beams and no longer to pull the hook 9 down.
  • the drive parts of the mechanism can be sized to withstand less effort and vibrations generated by this device compared to those of the prior art are inferior.
  • the lever 20 can serve as an elastic stop for the two hooks 9, which keeps the device simple ensuring its economic performance.
  • the device shown in Figure 6 is a variant of the invention in which the lever is replaced by a spring torsion 40 whose central part surrounds a fixed axis 41 relative to the frame of mechanism 7. Operation is similar to that which has been described for the device of Figures 1 to 4 and the spring 40 is capable of exerting on the hooks 9 an effort directed downward when these reach their top dead center positions.
  • This variant presents, by its great simplicity of realization, the advantage to be particularly economical.
  • the device selection comprises a plurality of hooks arranged in module, for example 8 times 2 hooks, these hooks being able to be selected by several blades arranged in module side by side
  • the lever 20 or the spring 40 is common to all the hooks of a module and can cooperate with each of them.
  • the invention is also applicable to a crowd formation mechanism in which the levers of restraint are not articulated but in which the hooks mobile are locked in position by fixed elements.
  • the elastic stop means are mounted on the movable hooks themselves.
  • the invention also relates to a weaving loom comprising a selection device as previously described.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Automatic Assembly (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Push-Button Switches (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Toys (AREA)

Abstract

In the selection of the moving hooks, in the shed harness of a Jacquard loom, a force (F3) is applied to the hook (9) at or near its top dead position to move it towards the bottom dead position. Also claimed is a hook selection mechanism, which has elastic butts (20,21) which give the force (F3) applied to the hook (9) at or near its top dead position to move it towards the bottom dead position. Preferably the force (F3) is equal to the friction forces (F1,F2) produced by the grip (15,24) on the needle (9) and the inertia forces. Two hooks (9) are displaced alternately by two griffes (10) in opposing phases. Elastic butts (20,21), acting on the hooks, have a lever which can be moved against spring pressure by the hook (9) on reaching its top dead position through the action of the hook on the lever shape. The lever (20) is a simple support, to turn on two axes (21) under spring pressure, which can be a torsion spring. The elastic butts (20,21) are part of the module forming the election system of a number of modules side by side with the hooks.

Description

L'invention a trait à un procédé et à un dispositif de sélection des crochets mobiles d'un mécanisme de formation de la foule d'un métier à tisser de type Jacquard et à un métier à tisser du type Jacquard comprenant un tel dispositif.The invention relates to a method and a device for selection of movable hooks of a mechanism for forming the crowd of a Jacquard type loom and a loom weaving machine of the Jacquard type comprising such a device.

Dans les métiers à tisser du type Jacquard, un mécanisme de formation de la foule soulève sélectivement des lisses comprenant un oeillet dans lequel passe un fil de chaíne, ce fil étant situé, en fonction de la position d'un crochet auquel est fixée l'extrémité supérieure de la lisse, au-dessus ou en dessous du fil de trame déplacé par le métier.In Jacquard looms, a mechanism crowd training selectively lifts smooth comprising an eyelet through which passes a chain wire, this wire being located, depending on the position of a hook to which is fixed the upper end of the arm, above or in below the weft thread moved by the loom.

Il est connu, par exemple du brevet européen EP-0 214 075, de déplacer un crochet d'un tel mécanisme de formation de la foule au moyen d'un couteau entre une position de point mort haut, à proximité de laquelle le crochet peut être immobilisé par un dispositif de sélection et correspondant à une position du fil de chaíne au-dessus du fil de trame, et une position de point mort bas correspondant à une position du fil de chaíne en dessous du fil de trame. On utilise en guise de dispositif de sélection un levier, mobile entre deux positions dans lesquelles, soit il bloque en position, soit il ne s'oppose pas au mouvement du crochet du mécanisme de formation de la foule. Ce levier est piloté, par exemple, par un électro-aimant.It is known, for example from European patent EP-0 214 075, to move a hook of such a mechanism for forming the crowd with a knife between a neutral position high, near which the hook can be immobilized by a selection device and corresponding to a position warp thread above the weft thread, and a position of bottom dead center corresponding to a position of the chain wire in below the weft thread. We use as a selects a lever, movable between two positions in which, either it blocks in position or it does not oppose the movement of the crowd formation hook. This lever is controlled, for example, by an electromagnet.

Dans ce genre de mécanisme, on peut procéder au nivelage des leviers de sélection, c'est-à-dire prévoir que, lors de chaque mouvement alternatif, un crochet situé au voisinage du point mort haut de sa trajectoire déplace l'extrémité inférieure du levier de sélection correspondant de telle sorte que l'extrémité supérieure du levier est pressée contre l'électro-aimant. Ceci induit une force qui s'oppose au mouvement du crochet mobile, au voisinage du point mort haut de sa trajectoire, cette force de rétention étant due aux frottements appliqués au crochet et à l'inertie des pièces en mouvement.In this kind of mechanism, we can proceed with leveling selection levers, i.e. provide that, when each reciprocating movement, a hook located near the top dead center of its path moves the lower end the corresponding selection lever so that the upper end of the lever is pressed against the electromagnet. This induces a force which opposes the movement of the movable hook, near the top dead center of its trajectory, this retention force being due to friction applied to the hook and to the inertia of moving parts.

Pour vaincre cette force, on doit contraindre le harnais formé des lisses du métier Jacquard de telle sorte qu'il puisse exercer sur les crochets un effort vertical dirigé vers le bas sensiblement égal à cette force de rétention. Cette contrainte supplémentaire sur le harnais s'ajoute à la contrainte normale du harnais qui est absorbée par la tension des fils de chaíne, les frottements des arcades contre les parties fixes du métier et l'inertie des arcades et des lisses.To overcome this force, one must constrain the harness formed of the Jacquard looms so that it can exert a vertical downward force on the hooks substantially equal to this retention force. This constraint extra on the harness adds to the normal stress of the harness which is absorbed by the tension of the warp threads, the friction of the arches against the fixed parts of the loom and the inertia of the arches and beams.

Les propriétés mécaniques du harnais doivent donc être prévues pour permettre l'application de cet effort vertical supplémentaire vers le bas, ce qui augmente son coût de fabrication, de même que celui des dispositifs mécaniques de rappel qu'il comprend et, plus généralement, des pièces mécaniques d'entraínement qui doivent être sur-dimensionnées. De plus, ceci accroít les phénomènes d'usure de l'ensemble de la mécanique Jacquard et du harnais. En outre, les efforts nécessaires pour vaincre les forces de frottement sont susceptibles de générer des vibrations dans le métier, ces vibrations pouvant avoir des conséquences négatives sur le fonctionnement et la durée de vie des organes mobiles du métier à tisser.The mechanical properties of the harness must therefore be provided to allow the application of this vertical force extra down, which increases its cost by manufacturing, as well as that of the mechanical devices reminder that it includes and, more generally, mechanical parts which must be oversized. Of more, this increases the wear phenomena of the whole of the Jacquard mechanics and harness. In addition, efforts necessary to overcome the friction forces are likely to generate vibrations in the business, these vibrations which can have negative consequences on the functioning and the lifetime of the mobile members of the loom.

Le but principal de l'invention est de résoudre ces problèmes et de fournir un procédé et un dispositif de sélection des crochets mobiles du métier à tisser permettant d'optimiser le dimensionnement du harnais et des pièces mécaniques d'entraínement ou de rappel élastique, tout en conservant l'efficacité d'un dispositif de sélection avec nivelage.The main object of the invention is to solve these problems and to provide a selection process and device mobile hooks of the loom allowing optimize the sizing of the harness and parts mechanical drive or elastic return, while retaining the effectiveness of a selection system with leveling.

Dans cet esprit, l'invention concerne un procédé de sélection des crochets mobiles d'un mécanisme de formation de la foule d'un métier à tisser de type Jacquard comprenant au moins un crochet déplacé par un couteau entre une position de point mort haut, dans ou à proximité de laquelle le crochet peut être immobilisé par un dispositif de sélection, et une position de point mort bas, caractérisé en ce qu'il consiste à exercer sur ledit crochet, dans sa position de point mort haut ou à proximité de celle-ci, un effort tendant à ramener ledit crochet vers sa position de point mort bas.In this spirit, the invention relates to a method of selection of movable hooks of a mechanism for forming the crowd of a Jacquard type loom including at minus a hook moved by a knife between a position of top dead center, in or near which the hook can be immobilized by a selection device, and a bottom dead center position, characterized in that it consists of exercise on said hook, in its top dead center position or near it, an effort to bring said hook to its bottom dead center position.

Grâce à l'invention, les forces ainsi exercées compensent les forces de frottement et d'inertie et il n'est plus nécessaire que le harnais exerce sur les crochets mobiles une force suffisante pour vaincre celles-ci, ce qui permet de simplifier et d'alléger la construction du métier à tisser et du harnais.Thanks to the invention, the forces thus exerted compensate friction and inertial forces and it is no longer necessary that the harness exerts a force on the movable hooks sufficient to overcome them, which simplifies and lighten the construction of the loom and harness.

En pratique, on choisit l'effort exercé sur le crochet sensiblement égal à la résultante des forces de frottement exercées par son environnement sur le crochet et des forces d'inertie. Cet effort compense ainsi sensiblement les forces qui s'opposent au changement de direction du crochet au point mort haut de sa trajectoire.In practice, we choose the force exerted on the hook substantially equal to the result of the friction forces exerted by its environment on the hook and forces of inertia. This effort thus significantly compensates for the forces which oppose the change of direction of the hook at the point dead at the top of its trajectory.

L'invention concerne aussi un dispositif permettant de mettre en oeuvre le procédé de l'invention et, plus spécifiquement, un dispositif de sélection des crochets mobiles d'un mécanisme de formation de la foule d'un métier à tisser de type Jacquard comprenant au moins un crochet déplacé par un couteau entre une position de point mort haut, dans ou à proximité de laquelle le crochet peut être immobilisé par un dispositif de sélection, et une position de point mort bas, caractérisé en ce qu'il comprend des moyens de butée élastique dudit crochet dans sa position de point mort haut, lesdits moyens étant aptes à exercer sur ledit crochet un effort tendant à ramener ledit crochet vers sa position de point mort bas.The invention also relates to a device for implement the method of the invention and, more specifically, a device for selecting the movable hooks of a crowd formation mechanism of a type loom Jacquard comprising at least one hook moved by a knife between a top dead center position, in or near which the hook can be immobilized by a device selection, and a bottom dead center position, characterized in that it comprises elastic stop means of said hook in its top dead center position, said means being capable of exert on said hook an effort tending to bring said hook to its bottom dead center position.

Le dispositif de l'invention permet donc d'annuler sensiblement l'effet des forces de frottement et d'inertie appliquées au crochet lorsqu'il est dans sa position de point mort haut ou à proximité de celle-ci. En outre, l'effort exercé par la butée élastique permet de compenser l'inertie du crochet lui-même. En d'autres termes, l'invention permet d'appliquer directement sur le crochet mobile la force qui est nécessaire pour le mettre en mouvement vers le bas à partir du point mort haut de sa trajectoire.The device of the invention therefore makes it possible to cancel appreciably the effect of friction and inertia forces applied to the hook when it is in its stitch position dead high or near it. In addition, the effort exerted by the elastic stop compensates for the inertia of the hook himself. In other words, the invention makes it possible to apply directly on the movable hook the force which is necessary to move it down from neutral top of its trajectory.

Selon un premier aspect avantageux de l'invention, le dispositif comprend deux crochets déplacés alternativement par deux couteaux animés d'un mouvement alternatif en opposition de phase, les moyens de butée élastique étant aptes à coopérer avec lesdits deux crochets. Ainsi, un unique moyen de butée élastique peut servir pour deux crochets, ce qui permet de conserver au dispositif de l'invention un caractère simple.According to a first advantageous aspect of the invention, the device includes two hooks moved alternately by two reciprocating knives in opposition to phase, the elastic stop means being able to cooperate with said two hooks. Thus, a single stop means elastic can be used for two hooks, which allows keep the device of the invention simple.

Selon un autre aspect avantageux de l'invention, on peut prévoir que les moyens de butée élastique comprennent un levier apte à être déplacé, contre la force d'un ressort, par le crochet lorsque celui-ci atteint sa position de point mort haut. L'effort exercé sur le crochet dans sa position de point mort haut, ou à proximité de celle-ci, conformément à l'invention est, dans ce cas, dû à la force élastique du ressort.According to another advantageous aspect of the invention, it is possible to provide that the elastic stop means comprise a lever able to be moved, against the force of a spring, by the hook when it reaches its neutral position high. The force exerted on the hook in its point position dead high, or close to it, according to the invention is, in this case, due to the elastic force of the spring.

Suivant un premier mode de réalisation particulièrement avantageux de l'invention, lorsque le dispositif comprend deux crochets déplacés alternativement par deux couteaux, on peut prévoir que le levier est apte à être déplacé par les crochets lorsque ceux-ci atteignent leur position de point mort haut respective.According to a first embodiment particularly advantageous of the invention, when the device comprises two hooks moved alternately by two knives, you can provide that the lever is capable of being moved by the hooks when these reach their top dead center position respective.

Selon un autre mode de réalisation de l'invention, les moyens de butées élastiques peuvent comprendre un ressort de torsion. Ce ressort de torsion peut être en contact direct avec les crochets du mécanisme de formation de la foule, ce qui permet d'obtenir, avec un coût très faible, la fonction recherchée.According to another embodiment of the invention, the elastic stop means may include a spring torsion. This torsion spring can be in direct contact with the crowd formation hooks, which allows to obtain, with a very low cost, the desired function.

L'invention concerne enfin un métier à tisser du type Jacquard comprenant un dispositif de sélection tel que précédemment décrit.The invention finally relates to a loom of the type Jacquard including a selection device as above described.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre de deux modes de réalisation d'un dispositif de sélection des lisses d'un métier à tisser de type Jacquard conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue schématique de principe illustrant un métier à tisser de type Jacquard incorporant l'invention et destiné à la commande de deux lisses ;
  • La figure 2 est une vue à plus grande échelle du dispositif de formation de la foule utilisé avec le métier à tisser de la figure 1 ;
  • La figure 3 est une vue de détail à plus grande échelle du dispositif de sélection des lisses appartenant au mécanisme de formation de la foule de la figure 2 dans une première position de travail ;
  • La figure 4 est une vue analogue à la figure 3 alors que le dispositif est dans une seconde position de travail ;
  • la figure 5 est un schéma à plus grande échelle de la répartition des forces agissant sur le crochet dans la position de la figure 4 et
  • La figure 6 est une vue analogue à la figure 4 pour un dispositif de sélection conforme à un second mode de réalisation de l'invention.
The invention will be better understood and other advantages of it will appear more clearly in the light of the following description of two embodiments of a device for selecting the heddles of a Jacquard type loom conforming in principle, given only by way of example and made with reference to the accompanying drawings in which:
  • Figure 1 is a schematic view of principle illustrating a Jacquard type loom incorporating the invention and intended for the control of two heddles;
  • Figure 2 is an enlarged view of the shedding device used with the loom of Figure 1;
  • Figure 3 is an enlarged detail view of the heald selection device belonging to the crowd forming mechanism of Figure 2 in a first working position;
  • Figure 4 is a view similar to Figure 3 while the device is in a second working position;
  • FIG. 5 is a diagram on a larger scale of the distribution of the forces acting on the hook in the position of FIG. 4 and
  • Figure 6 is a view similar to Figure 4 for a selection device according to a second embodiment of the invention.

Dans le métier à tisser représenté à la figure 1, une nappe de chaíne 1 provient d'une ensouple 2. Chaque fil de chaíne passe dans l'oeillet 3a d'une lisse 3 destinée à ouvrir le pas pour permettre le passage d'une duite en vue de constituer le tissu qui s'enroule sur une bobine 4. Dans l'exemple représenté, on suppose qu'il n'existe que deux lisses 3 ou que deux groupes de lisses, les unes en étant en position haute et les autres en position basse. C'est ainsi que l'on a référencé 3' les lisses en position basse et 3 celles en position haute. L'extrémité inférieure de chaque lisse est reliée au bâti du métier à tisser par un ressort de traction 5, tandis que son extrémité supérieure est solidaire d'une arcade 6. Les arcades sont élevées et abaissées au moyen d'un mécanisme de formation de la foule référencé 7.In the loom shown in Figure 1, a chain ply 1 comes from a beam 2. Each warp thread passes through the eyelet 3 has a smooth 3 intended to open the pitch to allow the passage of a pick in order to constitute the fabric which is wound on a spool 4. In the example shown, it is assumed that there are only two heddles 3 or only two groups of heddles, each being in the high position and the others in the low position. This is how we referenced the beams 3 in the low position and 3 those in the high position. The lower end of each heddle is connected to the frame of the loom by a tension spring 5, while its upper end is secured to an arch 6. The arches are raised and lowered by means of a formation mechanism. the crowd referenced 7.

Comme il apparaít plus clairement à la figure 2, le mécanisme de formation de la foule comprend un organe funiculaire 8 à chacune des extrémités duquel est associé un crochet 9. Les crochets comprennent un bec latéral 9a susceptible de coopérer avec des couteaux 10 animés de mouvements alternatifs verticaux en opposition de phase. L'élément funiculaire 8 passe autour d'une première poulie 11 d'un palonnier 12 dont la seconde poulie 13 est entourée par l'une des arcades 6. L'extrémité de celle-ci opposée à celle qui est reliée à la lisse 3 est ancrée à un point fixe 14 du bâti de la machine. La partie supérieure du mécanisme 7 est pourvue de crochets de retenue réalisés sous la forme de leviers 15 et appartenant à un dispositif de sélection. Les leviers 15 sont associés à un électro-aimant unique 16, de telle sorte que, lorsque l'électro-aimant est excité, les leviers sont déplacés vers le centre ou maintenus plaqués contre l'électro-aimant 16 après avoir été déplacés par un crochet 9. Les extrémités recourbées des branches inférieures 15a des leviers 15 coopérent avec les extrémités recourbées supérieures 9b des crochets 9 afin de les immobiliser dans leur position de point mort haut ou à proximité de celle-ci, dans la situation où est représenté le crochet de la partie gauche de la figure 2 alors que le crochet de la partie droite est représenté dans la position de point mort bas.As it appears more clearly in Figure 2, the crowd formation mechanism comprises a funicular member 8 at each end of which is associated a hook 9. The hooks include a side beak 9 a capable of cooperating with knives 10 animated by alternative vertical movements in phase opposition. The funicular element 8 passes around a first pulley 11 of a spreader 12 whose second pulley 13 is surrounded by one of the arches 6. The end of the latter opposite to that which is connected to the heddle 3 is anchored to a fixed point 14 of the machine frame. The upper part of the mechanism 7 is provided with retaining hooks produced in the form of levers 15 and belonging to a selection device. The levers 15 are associated with a single electromagnet 16, so that, when the electromagnet is energized, the levers are moved towards the center or kept pressed against the electromagnet 16 after having been moved by a hook 9. The curved ends of the lower branches 15 has levers 15 cooperate with the upper curved ends 9 b of the hooks 9 in order to immobilize them in their top dead center position or close to it, in the situation in which is represented the hook on the left side of Figure 2 while the hook on the right side is shown in the bottom dead center position.

Comme il apparaít plus clairement à la figure 3, chaque levier 15 est articulé autour d'un pivot 18 et comprend une branche inférieure 15a destinée à coopérer avec le bec supérieur 9b d'un crochet 9 et une branche supérieure 15b destinée à être déplacée ou retenue en position grâce à la force électro-magnétique générée par l'électro-aimant 16. La branche supérieure 15b de chaque levier 15 est maintenue écartée de l'électro-aimant 16 par un ressort 19 qui est comprimé lorsque le bec supérieur 9b du crochet 9 déplace l'extrémité inférieure de la branche 15a du levier 15 lors de l'arrivée du crochet 9 dans sa position de point mort haut.As it appears more clearly in FIG. 3, each lever 15 is articulated around a pivot 18 and comprises a lower branch 15 a intended to cooperate with the upper spout 9 b of a hook 9 and an upper branch 15 b intended to be moved or held in position by the electromagnetic force generated by the electromagnet 16. The upper branch 15b of each lever 15 is kept away from the electromagnet 16 by a spring 19 which is compressed when the upper beak 9 b of the hook 9 moves the lower end of the branch 15 a of the lever 15 when the hook 9 arrives in its top dead center position.

Dans la position de la figure 3, le crochet 9 est immobilisé en position car il ne peut pas redescendre sous l'effet de la traction exercée sur lui par l'élément funiculaire 8 du fait du blocage réalisé par le levier 15 sous l'effet du ressort 19. Lors de chaque arrivée du couteau 10 au point mort haut de sa trajectoire, le crochet 9 est légèrement soulevé, de telle sorte que son bec supérieur 9b échappe à la branche 15a du levier 15. Si l'électro-aimant 16 est activé à cet instant, la branche 15a est maintenue écartée du bec 9b et ne s'oppose pas au mouvement du bec 9 vers le bas en appui sur le couteau 10. Au contraire, si l'électro-aimant 16 n'est pas activé, le ressort 19 repousse le levier 15 vers sa position d'engagement avec le bec 9b.In the position of FIG. 3, the hook 9 is immobilized in position because it cannot descend under the effect of the traction exerted on it by the funicular element 8 due to the blocking produced by the lever 15 under the effect of the spring 19. At each arrival of the knife 10 at the top dead center of its trajectory, the hook 9 is slightly raised, so that its upper beak 9 b escapes the branch 15 a of the lever 15. If the electro- magnet 16 is activated at this instant, the branch 15 a is kept apart from the beak 9 b and does not oppose the movement of the beak 9 downwardly pressing on the knife 10. On the contrary, if the electromagnet 16 is not activated, the spring 19 pushes the lever 15 back to its position of engagement with the spout 9 b .

Ainsi, le crochet 9 demeure immobilisé tant que l'électro-aimant 16 n'est pas activé.Thus, the hook 9 remains immobilized as long as the electromagnet 16 is not activated.

Comme il apparaít plus clairement à la figure 4, la position de point mort haut du crochet 9 est située au-dessus de la position haute de la figure 3. En effet, le couteau 10 repousse le crochet 9 vers le haut afin de libérer le crochet 9b par rapport à l'extrémité de la branche 15a du levier 15. Dans sa position représentée à la figure 3, le crochet 9 est en contact avec une butée 20 formée par un levier courbe muni de deux extensions 20a et 20b aptes à être en appui contre les crochets 9 lorsqu'ils sont dans leur position de point mort haut ou à proximité de celle-ci. La butée ou levier 20 repose sur deux axes 21 et 22 fixes par rapport au boítier du mécanisme de formation de la foule 7. Le levier 20 est appuyé sur les axes 21 et 22 par un ressort 23 disposé au-dessus du levier 20, c'est-à-dire du côté de celui-ci opposé aux axes 21 et 22. Le mouvement du couteau 10 déplace le levier 20 vers la position représentée à la figure 4 contre la force du ressort 23. Ainsi, le levier 20 constitue une butée élastique pour le mouvement du crochet 9.As it appears more clearly in Figure 4, the top dead center position of the hook 9 is located above the high position of Figure 3. Indeed, the knife 10 pushes the hook 9 upwards to release the hook 9 b relative to the end of the branch 15 a of the lever 15. In its position shown in FIG. 3, the hook 9 is in contact with a stop 20 formed by a curved lever provided with two extensions 20 a and 20 b able to bear against the hooks 9 when they are in their top dead center position or close to it. The stop or lever 20 rests on two axes 21 and 22 fixed relative to the housing of the shedding mechanism 7. The lever 20 is supported on the axes 21 and 22 by a spring 23 disposed above the lever 20, c 'that is to say on the side thereof opposite the axes 21 and 22. The movement of the knife 10 moves the lever 20 to the position shown in Figure 4 against the force of the spring 23. Thus, the lever 20 constitutes a elastic stop for the movement of the hook 9.

Dans sa position de la figure 4, et comme illustré en figure 5, le crochet 9 subit une force horizontale F0 de la part de la branche inférieure 15a du levier 15, cette force étant due, entre autres, à l'effort généré par le ressort 19. Lorsqu'il entame son mouvement de descente en appui sur le couteau 10, le crochet 9 est soumis à une force de frottement F1 de la branche 15a sur lui-même et à une force de frottement F2, également dirigée vers le haut, due à son frottement sur un rail de guidage 24 appartenant à la structure du mécanisme 7.In its position in FIG. 4, and as illustrated in FIG. 5, the hook 9 undergoes a horizontal force F 0 on the part of the lower branch 15 a of the lever 15, this force being due, inter alia, to the force generated by the spring 19. When it begins its downward movement in abutment on the knife 10, the hook 9 is subjected to a frictional force F 1 of the branch 15 a on itself and to a frictional force F 2 , also directed upwards, due to its friction on a guide rail 24 belonging to the structure of the mechanism 7.

Les forces F1 et F2 sont sensiblement proportionnelles à la force F0. De plus, une force d'inertie proportionnelle à la masse du crochet 9 s'oppose à son mouvement vers le bas. D'autre part, grâce à l'invention, le crochet 9 subit une force F3 exercée par l'extrémité 20a du levier 20 du fait de la compression du ressort 23. Compte tenu de l'emplacement du levier 20, la force F3 n'est exercée sur le crochet 9 que lorsqu'il est au voisinage du point mort haut de sa trajectoire, de sorte que le mouvement du crochet n'est pas modifié par la présence du levier 20 sur l'essentiel de sa trajectoire.The forces F 1 and F 2 are substantially proportional to the force F 0 . In addition, an inertial force proportional to the mass of the hook 9 is opposed to its downward movement. On the other hand, thanks to the invention, the hook 9 undergoes a force F 3 exerted by the end 20 a of the lever 20 due to the compression of the spring 23. Given the location of the lever 20, the force F 3 is exerted on the hook 9 only when it is in the vicinity of the top dead center of its trajectory, so that the movement of the hook is not modified by the presence of the lever 20 over most of its trajectory .

Par un choix judicieux de la constante de raideur du ressort 23 à la portée de l'homme du métier, on peut réaliser un dispositif dans lequel l'effort F3 est sensiblement égal à la résultante des forces de frottement F1 et F2 et des forces d'inertie, ce qui permet d'annuler cette résultante.By a judicious choice of the stiffness constant of the spring 23 within the reach of those skilled in the art, it is possible to produce a device in which the force F 3 is substantially equal to the result of the friction forces F 1 and F 2 and inertial forces, which cancels this result.

Ainsi, l'élément funiculaire 8 ne doit plus exercer un effort sur le crochet 9 lors de son démarrage dans sa course vers le bas. En d'autres termes, l'arcade 6 ne doit plus exercer un tel effort ; c'est pourquoi le ressort 5 qui apparaít à la figure 1 peut être dimensionné uniquement pour absorber les forces dues à la tension des fils de chaíne, aux frottements contre les parties fixes du métier et à l'inertie des arcades et des lisses et non plus pour tirer le crochet 9 vers le bas. Les pièces d'entraínement du mécanisme peuvent être dimensionnées pour résister à des efforts moindres et les vibrations générées par ce dispositif par rapport à ceux de l'art antérieur sont inférieures.Thus, the funicular element 8 should no longer exercise a force on hook 9 when it starts in its stroke down. In other words, yoke 6 should no longer exert such an effort; this is why the spring 5 which appears in Figure 1 can be sized only for absorb the forces due to the tension of the warp threads, friction against the fixed parts of the loom and inertia arches and beams and no longer to pull the hook 9 down. The drive parts of the mechanism can be sized to withstand less effort and vibrations generated by this device compared to those of the prior art are inferior.

Selon un aspect avantageux de l'invention, le levier 20 peut servir de butée élastique aux deux crochets 9, ce qui permet de conserver au dispositif une simplicité garantissant ses performances économiques.According to an advantageous aspect of the invention, the lever 20 can serve as an elastic stop for the two hooks 9, which keeps the device simple ensuring its economic performance.

On note, à la figure 4, que le levier 20 est déplacé par le crochet 9 et pivote autour de l'axe 22. De la même manière, lorsque le levier est déplacé par le crochet situé sur la droite de la figure 2, il pivote autour de l'axe 21.Note in Figure 4, that the lever 20 is moved by the hook 9 and pivots around the axis 22. In the same way, when the lever is moved by the hook located on the right in Figure 2, it pivots around axis 21.

Le dispositif représenté à la figure 6 est une variante de l'invention dans laquelle le levier est remplacé par un ressort de torsion 40 dont la partie centrale entoure un axe 41 fixe par rapport au bâti du mécanisme 7. Le fonctionnement est similaire à celui qui a été décrit pour le dispositif des figures 1 à 4 et le ressort 40 est apte à exercer sur les crochets 9 un effort dirigé vers le bas lorsque ceux-ci atteignent leurs positions de point mort haut. Cette variante présente, de par sa grande simplicité de réalisation, l'avantage d'être particulièrement économique.The device shown in Figure 6 is a variant of the invention in which the lever is replaced by a spring torsion 40 whose central part surrounds a fixed axis 41 relative to the frame of mechanism 7. Operation is similar to that which has been described for the device of Figures 1 to 4 and the spring 40 is capable of exerting on the hooks 9 an effort directed downward when these reach their top dead center positions. This variant presents, by its great simplicity of realization, the advantage to be particularly economical.

Selon un aspect de l'invention qui peut être mis en oeuvre avec les deux modes de réalisation décrits, lorsque le dispositif de sélection comprend une pluralité de crochets disposés en module, par exemple de 8 fois 2 crochets, ces crochets étant aptes à être sélectionnés par plusieurs lames disposées en module côte à côte, on peut prévoir que le levier 20 ou le ressort 40 est commun à tous les crochets d'un module et peut coopérer avec chacun d'entre eux.According to one aspect of the invention which can be implemented with the two embodiments described, when the device selection comprises a plurality of hooks arranged in module, for example 8 times 2 hooks, these hooks being able to be selected by several blades arranged in module side by side, it can be provided that the lever 20 or the spring 40 is common to all the hooks of a module and can cooperate with each of them.

On conçoit que l'invention est aussi applicable à un mécanisme de formation de la foule dans lequel les leviers de retenue ne sont pas articulés mais dans lequel les crochets mobiles sont bloqués en position par des éléments fixes. It is understood that the invention is also applicable to a crowd formation mechanism in which the levers of restraint are not articulated but in which the hooks mobile are locked in position by fixed elements.

Selon une variante non représentée de l'invention, il est aussi possible de prévoir que les moyens de butée élastique sont montés sur les crochets mobiles eux-mêmes.According to a variant not shown of the invention, it is also possible to provide that the elastic stop means are mounted on the movable hooks themselves.

L'invention concerne aussi un métier à tisser comprenant un dispositif de sélection tel que précédemment décrit.The invention also relates to a weaving loom comprising a selection device as previously described.

Claims (10)

Procédé de sélection des crochets mobiles d'un mécanisme de formation de la foule (7) d'un métier à tisser de type Jacquard comprenant au moins un crochet (9) déplacé par un couteau (10) entre une position de point mort haut, dans ou à proximité de laquelle ledit crochet peut être immobilisé par un dispositif de sélection (15, 16), et une position de point mort bas, caractérisé en ce qu'il consiste à exercer sur ledit crochet, dans sa position de point mort haut ou à proximité de celle-ci, un effort (F3) tendant à ramener ledit crochet vers sa position de point mort bas.Method for selecting the movable hooks of a shedding mechanism (7) of a Jacquard type loom comprising at least one hook (9) moved by a knife (10) between a top dead center position, in or near which said hook can be immobilized by a selection device (15, 16), and a bottom dead center position, characterized in that it consists in exerting on said hook, in its top dead center position or near the latter, a force (F 3 ) tending to bring said hook back to its bottom dead center position. Procédé de sélection selon la revendication 1, caractérisé en ce que ledit effort (F3) est sensiblement égal à la résultante des forces de frottement (F1, F2) exercées par son environnement (15, 24) sur ledit crochet (9) et des forces d'inertie.Selection method according to claim 1, characterized in that said force (F 3 ) is substantially equal to the result of the friction forces (F 1 , F 2 ) exerted by its environment (15, 24) on said hook (9) and inertial forces. Dispositif de sélection des crochets mobiles d'un mécanisme de formation de la foule (7) d'un métier à tisser de type Jacquard comprenant au moins un crochet (9) déplacé par un couteau (10) entre une position de point mort haut, dans ou à proximité de laquelle ledit crochet peut être immobilisé par un dispositif de sélection (15, 16), et une position de point mort bas, caractérisé en ce qu'il comprend des moyens de butée élastique (20-23, 40, 41) dudit crochet dans sa position de point mort haut, lesdits moyens étant aptes à exercer sur ledit crochet un effort (F3) tendant à pousser ledit crochet vers sa position de point mort bas.Device for selecting the movable hooks of a shedding mechanism (7) of a Jacquard type loom comprising at least one hook (9) moved by a knife (10) between a top dead center position, in or near which said hook can be immobilized by a selection device (15, 16), and a bottom dead center position, characterized in that it comprises elastic stop means (20-23, 40, 41 ) of said hook in its top dead center position, said means being capable of exerting on said hook a force (F 3 ) tending to push said hook towards its bottom dead center position. Dispositif de sélection selon la revendication 3, caractérisé en ce qu'il comprend deux crochets (9) déplacés alternativement par deux couteaux (10) animés de mouvements alternatifs en opposition de phase, lesdits moyens de butée élastique (20-23, 40, 41) étant aptes à coopérer avec lesdits deux crochets.Selection device according to claim 3, characterized in that it comprises two displaced hooks (9) alternately by two knives (10) animated by movements alternating in phase opposition, said stop means elastic (20-23, 40, 41) being able to cooperate with said two hooks. Dispositif de sélection selon la revendication 3, caractérisé en ce que lesdits moyens de butée élastique (20-23) comprennent un levier (20) apte à être déplacé, contre la force d'un ressort (23), par ledit crochet (9) lorsque celui-ci atteint sa position de point mort haut.Selection device according to claim 3, characterized in that said elastic stop means (20-23) include a lever (20) capable of being moved, against force a spring (23), by said hook (9) when the latter reaches its top dead center position. Dispositif de sélection selon les revendications 4 et 5, caractérisé en ce que ledit levier (20) est apte à être déplacé par lesdits deux crochets (9) lorsque ceux ci atteignent leur position de point mort haut.Selection device according to claims 4 and 5, characterized in that said lever (20) is adapted to be moved by said two hooks (9) when these reach their top dead center position. Dispositif de sélection selon les revendications 5 ou 6, caractérisé en ce que ledit levier (20) est en appui simple, sous l'effet de la force dudit ressort (23), sur deux axes (21, 22) autour desquels il est apte à pivoter.Selection device according to claims 5 or 6, characterized in that said lever (20) is in simple support, under the effect of the force of said spring (23), on two axes (21, 22) around which it is able to pivot. Dispositif de sélection selon la revendication 3, caractérisé en ce que lesdits moyens de butée élastique comprennent un ressort de torsion (40).Selection device according to claim 3, characterized in that said elastic stop means include a torsion spring (40). Dispositif de sélection selon l'une des revendications 3 à 8, caractérisé en ce qu'il comprend une pluralité de crochets aptes à être sélectionnés par une pluralité de dispositifs de sélection disposés côte à côte sous forme de module, caractérisé en ce que lesdits moyens de butée élastique (20-23, 40, 41) sont communs auxdits crochets dudit module.Selection device according to one of claims 3 to 8, characterized in that it comprises a plurality of hooks able to be selected by a plurality of selection devices arranged side by side in the form of module, characterized in that said elastic stop means (20-23, 40, 41) are common to said hooks of said module. Métier à tisser du type Jacquard comprenant un dispositif de sélection selon l'une des revendications 3 à 9.Jacquard type loom including a selection device according to one of claims 3 to 9.
EP97420133A 1996-08-06 1997-07-28 Method and device for the selection of the mobile hooks of a shedding mechanism and jacquard loom Expired - Lifetime EP0823501B2 (en)

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FR9610083 1996-08-06
FR9610083A FR2752246B1 (en) 1996-08-06 1996-08-06 METHOD AND DEVICE FOR SELECTING THE MOVABLE HOOKS OF A CROWD TRAINING MECHANISM AND JACQUARD TYPE Loom

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136603A1 (en) 2000-03-17 2001-09-26 NV Michel van de Wiele Hook selection device for a shed-forming device for a weaving machine
EP1413657A1 (en) * 2002-10-25 2004-04-28 Staubli Lyon Shedding mechanism and loom with such a mechanism
EP1852531A1 (en) * 2006-05-03 2007-11-07 Staubli Lyon Mechanism for forming a shed, weaving loom equipped with such a mechanism and method of selecting the mobile needles of such a mechanism
EP4015686A1 (en) 2020-12-21 2022-06-22 Staubli Lyon Mechanism for forming a shed and jacquard loom equipped with such a mechanism
EP4015687A1 (en) 2020-12-21 2022-06-22 Staubli Lyon Mechanism for forming a shed and jacquard loom equipped with such a mechanism

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1011711A5 (en) * 1998-01-19 1999-12-07 Wiele Michel Nv Van De Shed-forming device for individually controlling the warp threads of a loom.
BE1011710A3 (en) * 1998-01-19 1999-12-07 Wiele Michel Nv Van De Gaap training device for looms.
KR20010028662A (en) * 1999-09-22 2001-04-06 박영승 A Electronic Jacard Device
US6216748B1 (en) * 1999-12-10 2001-04-17 Wis Seaming Equipment, Inc. Pivoting magnet latches for improved weaving device
US6318415B1 (en) * 1999-12-10 2001-11-20 Wis Seaming Equipment Inc. Quick release coupling/pulley assembly for improved weaving device
US6216749B1 (en) * 1999-12-10 2001-04-17 Wis Seaming Equipment, Inc. Weaving device
BE1013880A3 (en) * 2000-12-21 2002-11-05 Wiele Michel Van De Nv TRIDENT-jacquard.
CN2476569Y (en) * 2001-04-02 2002-02-13 张海林 Shedding control device of jacquard
JP4192713B2 (en) * 2003-07-25 2008-12-10 富士ゼロックス株式会社 Arylamine compound, charge transport material, electrophotographic photosensitive member, image forming apparatus, and process cartridge
CN102002788B (en) * 2010-12-14 2013-12-25 上海超诚电子科技有限公司 Shedding device, shedding device assembly and jacquard
BE1019710A3 (en) * 2010-12-21 2012-10-02 Wiele Michel Van De Nv GAAP FORMAT FOR A WEAVING MACHINE.
CN102719965B (en) * 2012-06-09 2014-09-17 浙江引力纺织机械有限公司 Anti-fatigue self-reset vertical hook and jacquard lifting component with same
CN102733035A (en) * 2012-07-13 2012-10-17 太平洋机电(集团)有限公司 Harness wire device applicable to weaving flat fibers
BE1021506B1 (en) * 2012-11-19 2015-12-03 Nv Michel Van De Wiele MODULE SUITABLE FOR BUILD-IN IN A JAQUARD MACHINE
BE1021951B1 (en) * 2014-07-18 2016-01-28 Michel Van De Wiele Nv GAAP FORMAT FOR A WEAVING MACHINE
WO2023147164A1 (en) * 2022-01-31 2023-08-03 Unspun, Inc Manufacturing woven textile products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524569A1 (en) * 1985-07-10 1987-01-22 Wolfgang Herold Weaving loom with individual heald control
FR2587045A1 (en) * 1985-09-06 1987-03-13 Staubli Verdol DEVICE FOR FORMING A CROWD IN A WEAVING MATERIAL COMPRISING A TILTING RETAINING HOOK
DE3724686A1 (en) * 1987-07-25 1989-02-02 Schleicher Oskar Fa Shedding device for textile machines, especially weaving machines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586432B1 (en) * 1985-08-23 1987-11-13 Staubli Verdol DEVICE FOR FORMING A CROWD IN A WEAVING MATERIAL
DE3728513A1 (en) † 1987-08-26 1989-03-09 Grosse Webereimaschinen Gmbh HOLDING DEVICE FOR WAVING MACHINES CONTROLLED BY JACQUARD MACHINES
DD283429A5 (en) † 1988-12-29 1990-10-10 Grosse Webereimaschinen Gmbh,De LIFTING DEVICE FOR WEAVING MACHINES THROUGH JACQUARD MACHINES
BE1004307A3 (en) † 1989-07-14 1992-10-27 Wiele Michel Van De Nv DEVICE FOR HAKENSELEKTIE TO AN ELECTRONIC CONTROLLED jacquard, AND ELECTRONIC CONTROLLED Jacquard OF SUCH DEVICE PROVIDED.
DE4116164A1 (en) * 1991-03-13 1992-09-17 Textilma Ag TECHNICAL DEVICE FOR A TEXTILE MACHINE
DE4116163A1 (en) * 1991-03-13 1992-09-17 Textilma Ag TECHNICAL DEVICE FOR A TEXTILE MACHINE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524569A1 (en) * 1985-07-10 1987-01-22 Wolfgang Herold Weaving loom with individual heald control
FR2587045A1 (en) * 1985-09-06 1987-03-13 Staubli Verdol DEVICE FOR FORMING A CROWD IN A WEAVING MATERIAL COMPRISING A TILTING RETAINING HOOK
DE3724686A1 (en) * 1987-07-25 1989-02-02 Schleicher Oskar Fa Shedding device for textile machines, especially weaving machines

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136603A1 (en) 2000-03-17 2001-09-26 NV Michel van de Wiele Hook selection device for a shed-forming device for a weaving machine
BE1013353A5 (en) * 2000-03-17 2001-12-04 Wiele Michel Van De Nv HOOK SELECTION DEVICE FOR A GAAPING DEVICE FOR A WEAVING MACHINE.
US6382263B2 (en) 2000-03-17 2002-05-07 N.V. Michel Van De Wiele Hook selection device for a shed-forming device for a weaving machine
EP1413657A1 (en) * 2002-10-25 2004-04-28 Staubli Lyon Shedding mechanism and loom with such a mechanism
FR2846343A1 (en) * 2002-10-25 2004-04-30 Staubli Lyon CROWD FORMATION MECHANISM AND WEAVING MACHINE EQUIPPED WITH SUCH A MECHANISM
US7017618B2 (en) 2002-10-25 2006-03-28 Staubli Lyon Shed forming mechanism and weaving loom equipped with such a mechanism
EP1852531A1 (en) * 2006-05-03 2007-11-07 Staubli Lyon Mechanism for forming a shed, weaving loom equipped with such a mechanism and method of selecting the mobile needles of such a mechanism
FR2900666A1 (en) * 2006-05-03 2007-11-09 Staubli Lyon Soc Par Actions S CROWN FORMING MECHANISM, WEAVING EQUIPPED WITH SUCH A MECHANISM AND METHOD OF SELECTING MOBILE HOOKS OF SUCH A MECHANISM
US7490633B2 (en) 2006-05-03 2009-02-17 Staubli Lyon Shed-forming mechanism, a loom fitted with such a mechanism, and a method of selecting moving hooks in such a mechanism
EP4015686A1 (en) 2020-12-21 2022-06-22 Staubli Lyon Mechanism for forming a shed and jacquard loom equipped with such a mechanism
EP4015687A1 (en) 2020-12-21 2022-06-22 Staubli Lyon Mechanism for forming a shed and jacquard loom equipped with such a mechanism
FR3118069A1 (en) 2020-12-21 2022-06-24 Staubli Lyon SHEDDING MECHANISM AND JACQUARD TYPE Loom
FR3118070A1 (en) 2020-12-21 2022-06-24 Staubli Lyon SHEDDING MECHANISM AND JACQUARD-TYPE Loom EQUIPPED WITH SUCH MECHANISM
US11702771B2 (en) 2020-12-21 2023-07-18 Staubli Lyon Shedding mechanism and jacquard-type weaving loom equipped with such a mechanism

Also Published As

Publication number Publication date
KR19980018399A (en) 1998-06-05
ES2163727T3 (en) 2002-02-01
FR2752246A1 (en) 1998-02-13
CN1084809C (en) 2002-05-15
FR2752246B1 (en) 1998-10-09
PT823501E (en) 2002-04-29
CN1176322A (en) 1998-03-18
TW380176B (en) 2000-01-21
JP3575960B2 (en) 2004-10-13
JPH1096134A (en) 1998-04-14
US5839481A (en) 1998-11-24
KR100403262B1 (en) 2004-02-11
ES2163727T5 (en) 2008-06-16
EP0823501B1 (en) 2001-11-07
DE69707995T2 (en) 2002-04-04
EP0823501B2 (en) 2008-02-27
DE69707995D1 (en) 2001-12-13
DE69707995T3 (en) 2008-09-11
ATE208442T1 (en) 2001-11-15

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