EP0754791A1 - Jacquard mechanism operated by coaxial shafts - Google Patents

Jacquard mechanism operated by coaxial shafts Download PDF

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Publication number
EP0754791A1
EP0754791A1 EP96420239A EP96420239A EP0754791A1 EP 0754791 A1 EP0754791 A1 EP 0754791A1 EP 96420239 A EP96420239 A EP 96420239A EP 96420239 A EP96420239 A EP 96420239A EP 0754791 A1 EP0754791 A1 EP 0754791A1
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EP
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Prior art keywords
mechanics
blades
levers
shaft
bars
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Granted
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EP96420239A
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German (de)
French (fr)
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EP0754791B1 (en
Inventor
Joseph Palau
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Staubli Faverges SCA
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Staubli Faverges SCA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • 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
    • D03C3/32—Jacquard driving mechanisms
    • D03C3/36—Griffe operating mechanisms

Definitions

  • the present invention relates to Jacquard mechanics for the formation of the crowd on the weaving machines and it relates more particularly to the mechanism for the vertical actuation of the two series of blades which ensure the control of the hooks of the same mechanics.
  • a single shaft is provided which is linked to the main shaft of the weaving machine and which extends over the entire length of the frame of the machine.
  • this shaft which is driven by a continuous rotation movement, is equipped with two adjacent cam or eccentric systems capable of transforming this continuous rotation into an alternative rotation in order to give the levers which carry the claw frames the desired lowering and lifting movement.
  • the invention consists in providing on the input shaft linked to the weaving machine a single cam mechanism suitable for imparting an alternating rotational movement to two longitudinal shafts arranged coaxially one inside the another to control the levers associated with the blades.
  • the two coaxial shafts are arranged above the hooks, along the median longitudinal axis of the mechanism, so as to allow access to said hooks.
  • the outer shaft is cut out of lights arranged to allow the passage and the angular movement of the levers integral with the inner shaft, these levers being oriented radially in pairs to define four control beams.
  • These plagues are linked by connecting rods to horizontal bars which are guided vertically on the one hand by means of fixed slides, on the other hand by means of connecting rods which pivot on the frame. It is from these bars that the blades for hanging the mechanical hooks are suspended, these blades being able to be independent of each other or to be fixed to two claw frames.
  • Fig. 1 is a schematic axial section of the actuation mechanism of a Jacquard mechanism established according to the invention.
  • Fig. 2 illustrates in perspective the arrangement and positioning of the mechanism according to FIG. 1.
  • Fig. 3 shows the mechanical frame, prior to mounting the actuation mechanism according to FIG. 1 and 2, as well as hooks.
  • references 1 and 2 designate two vertical plates which belong, as will be seen below with reference to FIG. 3, to the fixed frame of the illustrated mechanics.
  • the face of plate 1 which is facing outwards has a lateral extension 1 a shaped so as to define a sort of lateral casing closed by a cover 3.
  • an input shaft 4 which extends externally opposite the plate 2 to be connected, by a coupling such as that referenced 5 in fig. 2, at the end of a shaft 4 has resulted in continuous rotation by the shaft of the weaving machine with which the Jacquard mechanism is associated.
  • the periphery of the discs of the two cams 5 and 6 forms a rolling track for rollers 8 (shown in the form of arrows in FIG. 1) which are carried by the radial arms, oriented opposite each other and axially offset relative to each other, by two rockers 9 and 10.
  • the rocker 9 is fixed at the end of a shaft 11 mounted inside an outer shaft 12, of length slightly less than that of the shaft 11.
  • the two coaxial shafts 11 and 12 are suitably rotatably supported in bearings added in the plates 1 and 2 and they are oriented along the median longitudinal axis of the mechanical frame, in the upper part of that -this.
  • the cam mechanism housed in the housing 1 a -3 ensures the transformation of the continuous rotational movement of the input shaft 4 into an oscillating movement, so that the two coaxial shafts 11 and 12 are driven by an alternative movement, in synchronism with each other.
  • the outer shaft 12 is cut out from two slots 12 a , axially offset from one another and oriented opposite one of the other.
  • Each of these slots 12 a is crossed by a lever 13 fixed radially to the inner shaft 11.
  • each lever 13 is provided a lever 14 radially integral with the outer shaft 12 along the axis of the corresponding lever 13 and it is understood that each of the pairs of opposite levers 13 and 14 constitutes a kind of plague that the two concentric shafts 11 and 12 move in an oscillating motion.
  • Each lever 13 and 14 is pierced with an arcuate light 13 a , respectively 14 a , for the adjustable fixing of a vertical link 15 (fig. 2) whose lower end is coupled to an actuating bar 16.
  • Au level of each plate 1 and 2, two bars 16 are therefore provided arranged side by side.
  • each bar 16 is associated with a horizontal rod 18 provided in double form to embrace the envisaged bar.
  • One of the ends of each connecting rod 18 is coupled to the corresponding bar 16, while the opposite end pivots at 19 on the fixed frame.
  • the two pairs of bars 17 provided to the right of the plates 1 and 2 are intended to ensure the control of two series of blades or horizontal knives 20, in order to actuate the usual hooks for actuating the arches of the mechanics.
  • the connection between the bars 16 and the blades 20 was operated using lines or rods 20 a , said blades being thus made independent of each other; it goes without saying, however, that two claw frames can be used, in the usual manner.
  • the general operation of the mechanics is identical to that of conventional constructions, in the sense that the oscillating movement of the two coaxial shafts 11 and 12 ensures the lifting and lowering of the two series of blades 20.
  • the arched lights 13 a and 14 a flails 13-14 allow obtaining an oblique crowd, when desired.
  • the raised central arrangement of the coaxial shafts 11 and 12 completely releases the lateral access to the mechanical hooks.
  • the latter has only one pair of conjugate cams, arranged in the housing 1 a -3, that is to say outside the frame, which further improves accessibility to the mechanical components.
  • this frame can be constituted by two lower beams 21 with a C section open towards the outside, on which are directly fixed the two plates 1 and 2 which support the coaxial shafts 11 and 12.
  • a flange 22 arranged transverse to the mounting of the shaft 4 is linked to the weaving machine.
  • a series of spacers 23 which are fixed to two longitudinal blanks 24 forming supports for the slides 17 of the bars 16 and for the pivots 19 of the connecting rods 18.
  • At least some of the spacers 23 are cut out with vertical openings 23 a (cf. fig. 2) for the passage of the blades 21.
  • the latter are thus able to maneuver the hooks vertically (shown in C in fig. 3) arranged in rows in the housings defined between the plates 1 and 2 and the spacers 23.

Abstract

The Jacquard mechanism, to form the loom shed, has an input shaft (4) which imparts alternating rotation to two longitudinal and coaxial shafts (11,12), with one within the other, through a single cam mechanism (6-10). The shaft ends carry two pairs of radial levers (13,14), selectively linked to the heald frames (20).

Description

La présente invention a trait aux mécaniques Jacquard pour la formation de la foule sur les machines à tisser et elle concerne plus particulièrement le mécanisme pour l'actionnement vertical des deux séries de lames qui assurent la commande des crochets d'une même mécanique.The present invention relates to Jacquard mechanics for the formation of the crowd on the weaving machines and it relates more particularly to the mechanism for the vertical actuation of the two series of blades which ensure the control of the hooks of the same mechanics.

On sait qu'en pratique, ces crochets sont disposés suivant des rangées parallèles séparées les unes des autres par des espaces dans chacun desquels se déplace verticalement une lame de commande, laquelle lame est le plus souvent supportée par l'un de deux cadres de griffes. Chaque cadre est suspendu à des leviers animés d'un mouvement oscillant de manière à s'abaisser et à s'élever alternativement, étant observé que les déplacements verticaux des deux cadres de griffes et de leurs lames s'effectuent simultanément en sens inverses l'un de l'autre afin d'opérer l'ouverture du pas pour l'insertion du fil de trame.We know that in practice, these hooks are arranged in parallel rows separated from each other by spaces in each of which vertically moves a control blade, which blade is most often supported by one of two claw frames . Each frame is suspended from levers animated by an oscillating movement so as to lower and raise alternately, it being observed that the vertical displacements of the two claw frames and their blades are effected simultaneously in opposite directions. one of the other in order to operate the opening of the pitch for the insertion of the weft thread.

Dans les mécaniques traditionnelles, il est prévu un arbre unique qui est lié à l'arbre principal de la machine à tisser et qui s'étend sur toute la longueur du bâti de la mécanique. Au voisinage de chacune de ses extrémités, cet arbre, qui est animé d'un mouvement de rotation continu, est équipé de deux systèmes adjacents de cames ou excentriques propres à transformer cette rotation continue en une rotation alternative afin de conférer aux leviers qui portent les cadres de griffes le mouvement d'abaissement et de levée désiré.In traditional mechanics, a single shaft is provided which is linked to the main shaft of the weaving machine and which extends over the entire length of the frame of the machine. In the vicinity of each of its ends, this shaft, which is driven by a continuous rotation movement, is equipped with two adjacent cam or eccentric systems capable of transforming this continuous rotation into an alternative rotation in order to give the levers which carry the claw frames the desired lowering and lifting movement.

Le document FR-A-2 669 650 (STAUBLI-VERDOL) illustre bien la construction classique.Document FR-A-2 669 650 (STAUBLI-VERDOL) illustrates classic construction well.

Celle-ci comporte un certain nombre d'inconvénients. La présence des mécanismes pour la transformation du mouvement continu en mouvement alternatif augmente sensiblement le coût de l'ensemble en même temps qu'elle accroît l'encombrement du mécanisme d'actionnement et gêne l'accessibilité aux crochets de la mécanique. Par ailleurs, ces mécanismes de transformation compliquent la structure générale du bâti.This has a number of drawbacks. The presence of the mechanisms for transforming the continuous movement into reciprocating movement significantly increases the cost of the assembly at the same time as it increases the size of the actuation mechanism and hinders accessibility to the hooks of the mechanism. In addition, these transformation mechanisms complicate the general structure of the building.

C'est à ces inconvénients qu'entend principalement remédier la présente invention, laquelle a pour objet la mécanique Jacquard qui est définie à la revendication 1 et aux revendications suivantes.It is these drawbacks that the present invention mainly intends to remedy, which relates to the Jacquard mechanism which is defined in claim 1 and in the following claims.

En fait l'invention consiste à prévoir sur l'arbre d'entrée lié à la machine à tisser un mécanisme à cames unique propre à conférer un mouvement de rotation alternatif à deux arbres longitudinaux disposés coaxialement l'un à l'intérieur de l'autre pour assurer la commande des leviers associés aux lames.In fact the invention consists in providing on the input shaft linked to the weaving machine a single cam mechanism suitable for imparting an alternating rotational movement to two longitudinal shafts arranged coaxially one inside the another to control the levers associated with the blades.

Suivant un mode de mise en oeuvre préféré de l'invention, les deux arbres coaxiaux sont disposés au-dessus des crochets, suivant l'axe longitudinal médian de la mécanique, de façon à dégager l'accès auxdits crochets.According to a preferred embodiment of the invention, the two coaxial shafts are arranged above the hooks, along the median longitudinal axis of the mechanism, so as to allow access to said hooks.

Bien évidemment, l'arbre extérieur est découpé de lumières agencées pour permettre le passage et le débattement angulaire des leviers solidaires de l'arbre intérieur, ces leviers étant orientés radialement par paires pour définir quatre fléaux de commande. Ces fléaux sont liés par des biellettes à des barres horizontales qui sont guidées verticalement d'une part au moyen de coulisses fixes, d'autre part à l'aide de bielles qui pivotent sur le bâti. C'est à ces barres que sont suspendues les lames pour la commande des crochets de la mécanique, ces lames pouvant être indépendantes les unes des autres ou être fixées à deux cadres de griffes.Obviously, the outer shaft is cut out of lights arranged to allow the passage and the angular movement of the levers integral with the inner shaft, these levers being oriented radially in pairs to define four control beams. These plagues are linked by connecting rods to horizontal bars which are guided vertically on the one hand by means of fixed slides, on the other hand by means of connecting rods which pivot on the frame. It is from these bars that the blades for hanging the mechanical hooks are suspended, these blades being able to be independent of each other or to be fixed to two claw frames.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:

Fig. 1 est une coupe axiale schématique du mécanisme d'actionnement d'une mécanique Jacquard établie suivant l'invention.Fig. 1 is a schematic axial section of the actuation mechanism of a Jacquard mechanism established according to the invention.

Fig. 2 illustre en perspective l'agencement et le positionnement du mécanisme suivant fig. 1.Fig. 2 illustrates in perspective the arrangement and positioning of the mechanism according to FIG. 1.

Fig. 3 représente le bâti de la mécanique, préalablement au montage du mécanisme d'actionnement suivant fig. 1 et 2, ainsi que des crochets.Fig. 3 shows the mechanical frame, prior to mounting the actuation mechanism according to FIG. 1 and 2, as well as hooks.

En fig. 1, les références 1 et 2 désignent deux platines verticales qui appartiennent, comme on le verra plus loin en référence à fig. 3, au bâti fixe de la mécanique illustrée. La face de la platine 1 qui est tournée vers l'extérieur présente un prolongement latéral 1a conformé de manière à définir une sorte de carter latéral fermé par un couvercle 3.In fig. 1, references 1 and 2 designate two vertical plates which belong, as will be seen below with reference to FIG. 3, to the fixed frame of the illustrated mechanics. The face of plate 1 which is facing outwards has a lateral extension 1 a shaped so as to define a sort of lateral casing closed by a cover 3.

A l'intérieur de ce carter 1a-3 est monté un arbre d'entrée 4 qui se prolonge extérieurement à l'opposé de la platine 2 pour être relié, par un accouplement tel que celui référencé 5 en fig. 2, à l'extrémité d'un arbre 4a entraîné en rotation continue par l'arbre de la machine à tisser à laquelle la mécanique Jacquard est associée. Sur la partie de cet arbre 4 qui est disposée à l'intérieur du carter 1a-3 sont calées deux cames conjuguées 6 et 7 ; à la façon en soi connue, chaque came 6 ou 7 est constituée par deux disques excentrés fixés côte à côte sur un même moyeu, les excentrations étant orientées l'une à l'opposé de l'autre dans chaque came.Inside this casing 1 a -3 is mounted an input shaft 4 which extends externally opposite the plate 2 to be connected, by a coupling such as that referenced 5 in fig. 2, at the end of a shaft 4 has resulted in continuous rotation by the shaft of the weaving machine with which the Jacquard mechanism is associated. On the part of this shaft 4 which is arranged inside the casing 1 a -3 are wedged two conjugate cams 6 and 7; in known manner, each cam 6 or 7 is constituted by two eccentric discs fixed side by side on the same hub, the eccentricities being oriented one opposite the other in each cam.

La périphérie des disques des deux cames 5 et 6 forme piste de roulement pour des galets 8 (figurés sous la forme de flèches en fig. 1) qui sont portés par les bras radiaux, orientés à l'opposé l'un de l'autre et décalés axialement l'un par rapport à l'autre, de deux bascules 9 et 10. La bascule 9 est fixée en bout d'un arbre 11 monté à l'intérieur d'un arbre extérieur 12, de longueur légèrement inférieure à celle de l'arbre 11. Les deux arbres coaxiaux 11 et 12 sont convenablement supportés à rotation dans des roulements rapportés dans les platines 1 et 2 et ils sont orientés suivant l'axe longitudinal médian du bâti de la mécanique, dans la partie supérieure de celui-ci.The periphery of the discs of the two cams 5 and 6 forms a rolling track for rollers 8 (shown in the form of arrows in FIG. 1) which are carried by the radial arms, oriented opposite each other and axially offset relative to each other, by two rockers 9 and 10. The rocker 9 is fixed at the end of a shaft 11 mounted inside an outer shaft 12, of length slightly less than that of the shaft 11. The two coaxial shafts 11 and 12 are suitably rotatably supported in bearings added in the plates 1 and 2 and they are oriented along the median longitudinal axis of the mechanical frame, in the upper part of that -this.

On conçoit dans ces conditions que le mécanisme à cames logé dans le carter 1a-3 assure la transformation du mouvement de rotation continu de l'arbre d'entrée 4 en un mouvement oscillant, si bien que les deux arbres coaxiaux 11 et 12 sont animés d'un déplacement alternatif, en synchronisme l'un par rapport à l'autre.It is conceivable under these conditions that the cam mechanism housed in the housing 1 a -3 ensures the transformation of the continuous rotational movement of the input shaft 4 into an oscillating movement, so that the two coaxial shafts 11 and 12 are driven by an alternative movement, in synchronism with each other.

Au voisinage immédiat de la face intérieure de chacune des deux platines 1 et 2, l'arbre extérieur 12 est découpé de deux lumières 12a, décalés axialement l'une par rapport à l'autre et orientées à l'opposé l'une de l'autre. Chacune de ces lumières 12a est traversée par un levier 13 fixé radialement à l'arbre intérieur 11. A l'opposé de chaque levier 13 est prévu un levier 14 solidaire radialement de l'arbre extérieur 12 suivant l'axe du levier 13 correspondant et l'on comprend que chacune des paires de leviers 13 et 14 opposés constitue une sorte de fléau que les deux arbres concentriques 11 et 12 animent d'un mouvement oscillant.In the immediate vicinity of the inner face of each of the two plates 1 and 2, the outer shaft 12 is cut out from two slots 12 a , axially offset from one another and oriented opposite one of the other. Each of these slots 12 a is crossed by a lever 13 fixed radially to the inner shaft 11. Opposite each lever 13 is provided a lever 14 radially integral with the outer shaft 12 along the axis of the corresponding lever 13 and it is understood that each of the pairs of opposite levers 13 and 14 constitutes a kind of plague that the two concentric shafts 11 and 12 move in an oscillating motion.

Chaque levier 13 et 14 est percé d'une lumière arquée 13a, respectivement 14a, pour la fixation réglable d'une biellette verticale 15 (fig. 2) dont l'extrémité inférieure est attelée à une barre d'actionnement 16. Au niveau de chaque platine 1 et 2, il est donc prévu deux barres 16 disposées côte à côte.Each lever 13 and 14 is pierced with an arcuate light 13 a , respectively 14 a , for the adjustable fixing of a vertical link 15 (fig. 2) whose lower end is coupled to an actuating bar 16. Au level of each plate 1 and 2, two bars 16 are therefore provided arranged side by side.

Les extrémités de ces barres 16 sont engagées dans des coulisses 17 rigidement fixées au bâti de la mécanique. Pour améliorer le guidage de son mouvement vertical alternatif, à chaque barre 16 est associée une bielle horizontale 18 prévue sous forme double pour embrasser la barre envisagée. L'une des extrémités de chaque bielle 18 est attelée à la barre 16 correspondante, tandis que l'extrémité opposée pivote en 19 sur le bâti fixe.The ends of these bars 16 are engaged in slides 17 rigidly fixed to the mechanical frame. To improve the guidance of its alternating vertical movement, each bar 16 is associated with a horizontal rod 18 provided in double form to embrace the envisaged bar. One of the ends of each connecting rod 18 is coupled to the corresponding bar 16, while the opposite end pivots at 19 on the fixed frame.

Les deux paires de barres 17 prévues au droit des platines 1 et 2 sont destinées à assurer la commande de deux séries de lames ou couteaux horizontaux 20, en vue d'actionner les crochets usuels pour l'actionnement des arcades de la mécanique. Dans l'exemple de réalisation envisagé, on a supposé que la liaison entre les barres 16 et les lames 20 était opérée à l'aide de suspentes ou tiges 20a, lesdites lames étant ainsi rendues indépendantes les unes des autres ; il va cependant de soi qu'on peut avoir recours à deux cadres de griffes, à la manière usuelle.The two pairs of bars 17 provided to the right of the plates 1 and 2 are intended to ensure the control of two series of blades or horizontal knives 20, in order to actuate the usual hooks for actuating the arches of the mechanics. In the exemplary embodiment envisaged, it was assumed that the connection between the bars 16 and the blades 20 was operated using lines or rods 20 a , said blades being thus made independent of each other; it goes without saying, however, that two claw frames can be used, in the usual manner.

Le fonctionnement général de la mécanique est identique à celui des constructions classiques, en ce sens que le mouvement oscillant des deux arbres coaxiaux 11 et 12 assure la levée et l'abaissement des deux séries de lames 20. Les lumières arquées 13a et 14a des fléaux 13-14 permettent l'obtention d'une foule oblique, lorsque désiré.The general operation of the mechanics is identical to that of conventional constructions, in the sense that the oscillating movement of the two coaxial shafts 11 and 12 ensures the lifting and lowering of the two series of blades 20. The arched lights 13 a and 14 a flails 13-14 allow obtaining an oblique crowd, when desired.

La disposition centrale surélevée des arbres coaxiaux 11 et 12 dégage totalement l'accès latéral aux crochets de la mécanique. Cette dernière ne comporte qu'une seule paire de cames conjuguées, disposées dans le carter 1a-3, c'est-à-dire à l'extérieur du bâti, ce qui améliore encore l'accessibilité aux organes de la mécanique.The raised central arrangement of the coaxial shafts 11 and 12 completely releases the lateral access to the mechanical hooks. The latter has only one pair of conjugate cams, arranged in the housing 1 a -3, that is to say outside the frame, which further improves accessibility to the mechanical components.

Il convient par ailleurs d'observer que cet agencement simplifie considérablement la construction du bâti lui-même. Comme illustré en fig. 3, ce bâti peut être constitué par deux poutres inférieures 21 à section en C ouverte vers l'extérieur, sur lesquelles sont directement fixées les deux platines 1 et 2 qui supportent les arbres coaxiaux 11 et 12. En avant de la platine 1 est prévu un flasque transversal 22 agencé pour le montage de l'arbre 4a lié à la machine à tisser. Entre les deux platines 1 et 2 vient s'insérer une série d'entretoises 23 qui sont fixées à deux flans longitudinaux 24 formant supports pour les coulisses 17 des barres 16 et pour les pivots 19 des bielles 18.It should also be noted that this arrangement considerably simplifies the construction of the frame itself. As illustrated in fig. 3, this frame can be constituted by two lower beams 21 with a C section open towards the outside, on which are directly fixed the two plates 1 and 2 which support the coaxial shafts 11 and 12. In front of the plate 1 is provided a flange 22 arranged transverse to the mounting of the shaft 4 is linked to the weaving machine. Between the two plates 1 and 2 is inserted a series of spacers 23 which are fixed to two longitudinal blanks 24 forming supports for the slides 17 of the bars 16 and for the pivots 19 of the connecting rods 18.

Certaines au moins des entretoises 23 sont découpées de lumières verticales 23a (cf. fig. 2) pour le passage des lames 21. Ces dernières sont ainsi aptes à manoeuvrer verticalement les crochets (figurés en C en fig. 3) disposés par rangées dans les logements définis entre les platines 1 et 2 et les entretoises 23.At least some of the spacers 23 are cut out with vertical openings 23 a (cf. fig. 2) for the passage of the blades 21. The latter are thus able to maneuver the hooks vertically (shown in C in fig. 3) arranged in rows in the housings defined between the plates 1 and 2 and the spacers 23.

En dépit de sa simplicité structurelle, un tel bâti comporte une très grande robustesse, les efforts étant supportés par les deux platines 1 et 2 qui peuvent présenter toute épaisseur désirée.Despite its structural simplicity, such a frame has a very high robustness, the efforts being supported by the two plates 1 and 2 which can have any desired thickness.

Claims (5)

Mécanique Jacquard pour la formation de la foule sur les machines à tisser, du genre dans lequel l'actionnement vertical alternatif des deux séries de lames horizontales (20) est opéré à partir d'un arbre d'entrée (4) animé d'un mouvement de rotation continu, caractérisée en ce que l'arbre d'entrée (4) transmet par un unique mécanisme à cames (6-7-8-9-10) un mouvement de rotation alternatif à deux arbres longitudinaux (11-12) disposés coaxialement l'un à l'intérieur de l'autre et pourvus à chacune de leurs extrémités de deux paires de leviers radiaux (13, 14) sélectivement reliés aux lames (20).Jacquard mechanics for crowd formation on weaving machines, of the kind in which the alternating vertical actuation of the two series of horizontal blades (20) is operated from an input shaft (4) animated by a continuous rotation movement, characterized in that the input shaft (4) transmits by a single cam mechanism (6-7-8-9-10) an alternating rotation movement with two longitudinal shafts (11-12) arranged coaxially one inside the other and provided at each of their ends with two pairs of radial levers (13, 14) selectively connected to the blades (20). Mécanique suivant la revendication 1, caractérisée en ce que l'arbre extérieur (12) est découpé de lumières (12a) pour le passage et le débattement angulaire des leviers (13) solidaires de l'arbre intérieur (11).Mechanics according to claim 1, characterized in that the outer shaft (12) is cut out from slots (12 a ) for the passage and the angular movement of the levers (13) integral with the inner shaft (11). Mécanique suivant l'une quelconque des revendications 1 et 2, caractérisée en ce que les leviers (13, 14) sont reliés par des biellettes verticales (15) à des jeux latéraux de barres horizontales (16) qui sont guidées d'une part au moyen de coulisses latérales fixes (17), d'autre part à l'aide de bielles (18) attelées auxdites barres et au bâti de la mécanique, lesquelles barres forment support pour les lames (20).Mechanics according to either of Claims 1 and 2, characterized in that the levers (13, 14) are connected by vertical rods (15) to lateral sets of horizontal bars (16) which are guided on the one hand to the means of fixed lateral slides (17), on the other hand by means of connecting rods (18) coupled to said bars and to the mechanical frame, which bars form support for the blades (20). Mécanique suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que son bâti comprend deux platines verticales (1 et 2) formant supports pour les extrémités des arbres coaxiaux (11, 12) et elles-mêmes supportées par deux poutres longitudinales (21).Mechanics according to any one of claims 1 to 3, characterized in that its frame comprises two vertical plates (1 and 2) forming supports for the ends of the coaxial shafts (11, 12) and themselves supported by two longitudinal beams ( 21). Mécanique suivant la revendication 4, caractérisée en ce que les platines (1, 2) sont réunies l'une à l'autre par deux flans (24) auxquels sont fixées des entretoises (23) définissant les logements pour les rangées de crochets usuels (C) de la mécanique.Mechanics according to claim 4, characterized in that the plates (1, 2) are joined to one another by two blanks (24) to which are fixed spacers (23) defining the housings for the rows of usual hooks ( C) mechanics.
EP96420239A 1995-07-18 1996-07-17 Jacquard mechanism operated by coaxial shafts Expired - Lifetime EP0754791B1 (en)

Applications Claiming Priority (2)

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FR9508910A FR2736939B1 (en) 1995-07-18 1995-07-18 MECHANICAL JACQUARD ACTUATED BY COAXIAL SHAFTS
FR9508910 1995-07-18

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EP0754791A1 true EP0754791A1 (en) 1997-01-22
EP0754791B1 EP0754791B1 (en) 1999-09-08

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EP96420239A Expired - Lifetime EP0754791B1 (en) 1995-07-18 1996-07-17 Jacquard mechanism operated by coaxial shafts

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US (1) US5671781A (en)
EP (1) EP0754791B1 (en)
JP (1) JP3718290B2 (en)
KR (1) KR100399663B1 (en)
DE (1) DE69604137T2 (en)
ES (1) ES2135861T3 (en)
FR (1) FR2736939B1 (en)
TW (1) TW404415U (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
EP1705272A1 (en) * 2005-03-21 2006-09-27 NV Michel van de Wiele Jacquard machine
CN102230250A (en) * 2011-06-17 2011-11-02 浙江奇汇电子提花机有限公司 Griffe transmission mechanism of electronic jacquard machine
CN103132201A (en) * 2011-11-22 2013-06-05 上海中剑纺织机械有限公司 Novel opening device for jacquard
CN103290588A (en) * 2013-06-05 2013-09-11 傅加龙 Computer jacquard machine and transmission mechanism thereof

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FR2772793B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets LOCKING DEVICE OF AN ELECTRIC ROTARY ACTUATOR FOR FORMING CROWD ON WEAVING MATERIAL, WEAVING MECHANICS AND WEAVING MATERIAL
FR2772791B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets ELECTRIC ROTARY ACTUATOR FOR CROWD FORMATION ON WEAVING MATERIAL, WEAVING MECHANICS AND WEAVING MATERIAL
FR2854642B1 (en) * 2003-05-06 2005-07-08 Staubli Lyon CROWN FORMING DEVICE AND JACQUARD TYPE WEAVING EQUIPPED WITH SUCH A DEVICE
US7475708B2 (en) * 2004-11-17 2009-01-13 Groz-Beckert Kg Shaft drive for heald shafts of weaving machines
KR101106191B1 (en) * 2009-04-14 2012-01-20 인천교통공사 Fire control system for subway elevator
CN104562360B (en) * 2015-01-23 2016-04-20 浙江奇汇电子提花机有限公司 Jacquard rocker shaft architecture
FR3037601B1 (en) * 2015-06-22 2018-06-22 Staubli Lyon TRAINING BLADE OF HOOKS BELONGING TO A JACQUARD AND MECHANICAL JACQUARD MECHANICAL COMPRISING SUCH A BLADE
CN105442141B (en) * 2015-12-31 2017-03-08 常熟纺织机械厂有限公司 The shedding mechanism of jacquard
CN105483895A (en) * 2016-01-21 2016-04-13 张军波 Conjugate cam jacquard shedding device
BE1024029B1 (en) * 2016-04-08 2017-11-06 Nv Michel Van De Wiele GAAP FORMAT FOR A WEAVING DEVICE
CN107366071B (en) * 2017-08-15 2023-05-12 丁秋亚 Jacquard shedding device
FR3103235B1 (en) * 2019-11-15 2021-11-26 Staubli Sa Ets Bearing for a shed forming machine or motion transmission system, armor mechanism lever comprising such a bearing and a shed forming machine comprising such a lever or such a bearing

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US1631523A (en) * 1924-09-02 1927-06-07 Crompton & Knowles Loom Works Jacquard mechanism for looms
EP0409139A1 (en) * 1989-07-17 1991-01-23 N.V. Michel Van de Wiele System for driving the knife-holder of double-lift jacquards of open-shed type, and jacquards provided with such driving-system
FR2669650A1 (en) * 1990-11-27 1992-05-29 Staubli Verdol MECHANISM FOR CONTROLLING THE FRAMES OF A CROWD FORMING DEVICE.
EP0488915A1 (en) * 1990-11-27 1992-06-03 Staubli-Verdol S.A. Driving system for the knife boxes of a shed-forming mechanism such as a dobby

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FR2658539B1 (en) * 1990-02-22 1992-06-05 Staubli Verdol Sarl Ets MECHANISM FOR CONTROLLING THE MOVEMENT OF THE CLAW FRAMES OF A CROWD FORMING DEVICE.
BE1008209A4 (en) * 1993-04-23 1996-02-13 Wiele Michel Van De Nv Jacquard.
DE9307391U1 (en) * 1993-04-26 1993-09-30 Textilma Ag Shed forming device for a weaving machine
FR2717189B1 (en) * 1994-03-10 1996-07-19 Staubli Verdol Back and forth movement control mechanism of the claw frames of an armor mechanic.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1631523A (en) * 1924-09-02 1927-06-07 Crompton & Knowles Loom Works Jacquard mechanism for looms
EP0409139A1 (en) * 1989-07-17 1991-01-23 N.V. Michel Van de Wiele System for driving the knife-holder of double-lift jacquards of open-shed type, and jacquards provided with such driving-system
FR2669650A1 (en) * 1990-11-27 1992-05-29 Staubli Verdol MECHANISM FOR CONTROLLING THE FRAMES OF A CROWD FORMING DEVICE.
EP0488915A1 (en) * 1990-11-27 1992-06-03 Staubli-Verdol S.A. Driving system for the knife boxes of a shed-forming mechanism such as a dobby

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705272A1 (en) * 2005-03-21 2006-09-27 NV Michel van de Wiele Jacquard machine
BE1016559A4 (en) * 2005-03-21 2007-01-09 Wiele Michel Van De Nv JACQUARD DEVICE.
US7464729B2 (en) 2005-03-21 2008-12-16 N.V. Michel Van De Wiele Jacquard machine
CN1861863B (en) * 2005-03-21 2013-01-02 米歇尔·范德威尔公司 Jacquard machine
CN102230250A (en) * 2011-06-17 2011-11-02 浙江奇汇电子提花机有限公司 Griffe transmission mechanism of electronic jacquard machine
CN103132201A (en) * 2011-11-22 2013-06-05 上海中剑纺织机械有限公司 Novel opening device for jacquard
CN103290588A (en) * 2013-06-05 2013-09-11 傅加龙 Computer jacquard machine and transmission mechanism thereof

Also Published As

Publication number Publication date
US5671781A (en) 1997-09-30
ES2135861T3 (en) 1999-11-01
KR970006577A (en) 1997-02-21
JP3718290B2 (en) 2005-11-24
KR100399663B1 (en) 2003-12-31
JPH0931793A (en) 1997-02-04
DE69604137D1 (en) 1999-10-14
FR2736939B1 (en) 1997-09-05
TW404415U (en) 2000-09-01
DE69604137T2 (en) 2000-04-20
EP0754791B1 (en) 1999-09-08
FR2736939A1 (en) 1997-01-24

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