EP0849384B1 - Shedding mechanism, method of assembly thereof and Jacuard loom with such a mechanism - Google Patents
Shedding mechanism, method of assembly thereof and Jacuard loom with such a mechanism Download PDFInfo
- Publication number
- EP0849384B1 EP0849384B1 EP97420236A EP97420236A EP0849384B1 EP 0849384 B1 EP0849384 B1 EP 0849384B1 EP 97420236 A EP97420236 A EP 97420236A EP 97420236 A EP97420236 A EP 97420236A EP 0849384 B1 EP0849384 B1 EP 0849384B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- modules
- shed
- forming device
- framework
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
-
- 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 invention relates to a crowd forming device for a Jacquard type weaving loom, to a method of mounting such a device and to a weaving loom equipped with such a crowd forming device or mounted according to such a method.
- the invention is more particularly centered on the vertical actuation, in phase opposition, of the two series of blades or knives which ensure the control of the hooks of an armor mechanism.
- hooks are arranged in parallel rows separated from each other by spaces in each of which a knife moves vertically.
- This knife 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 movements of the knives take place simultaneously, in opposite directions to each other, in order to operate the opening of the pitch for the insertion of the weft thread.
- the output shaft of the loom on which the shedding device is to be installed can be located on the left or right side of this loom. It is customary to provide that the crowd training device can be adapted to trades with an output shaft on the left or on the right.
- the weaver who will use the loom decides to change the type or supplier of loom while he maintains his choice with regard to the crowd training device, so that it is sometimes necessary to change the entry side of the movement into the crowd formation device.
- this modification is long and complex. In particular, it induces significant interventions on the peripheral mechanical parts such as the chassis and the transmission elements.
- the present invention mainly intends to remedy, which essentially consists in providing two longitudinal shafts arranged co-axially inside a rigid tube integral with two support plates for said shafts and a mechanism for cams transmitting an alternating rotational movement from an input shaft of the shedding device to the longitudinal shafts.
- the coaxial longitudinal shafts constitute an efficient and not very complex device making it possible to transform, with the cam mechanism, the movement of the input shaft into the movement for controlling the claw frames.
- the rigid tube, the plates and the longitudinal co-axial shafts constitute a solid assembly which can be manipulated in a unitary manner, for example by means of a hoist, in order to be placed on the structure of the crowd forming device. .
- the plates are removably mounted on the structure of the device.
- This aspect of the invention facilitates maintenance operations because, when it is necessary to access, by For example, with the selection modules for the hooks of the crowd formation device, the plates can be separated from the structure and the drive assembly formed by the plates, the shafts, the tube and the cam mechanism can be removed.
- the plates are capable of being mounted on the structure in two positions corresponding respectively to the positioning of the input shaft on one side or the other of the device.
- This aspect of the invention therefore makes it possible to produce, with the same drive assembly, a crowd training device with movement input on the right or on the left.
- the plates are asymmetrical, that is to say the axis common to the longitudinal shafts and to the tube is offset with respect to the median axis of the plates.
- the plates are symmetrical, that is to say the axis common to the longitudinal shafts and to the tube is intersecting with the median axis of said plate.
- the crowd formation device comprises electromagnetic modules for selecting the hooks resting on the knives, these modules are distributed in baskets able to be put in place in the device once the modules are in place in the baskets.
- This aspect of the invention makes it possible to prepare the modules outside the crowd training device, that is to say in particular on a workbench allowing comfortable work for an operator and of good quality and to install them. then by groups in the device of the invention.
- the invention also relates to a method of mounting a crowd training device, in particular as described above.
- This process is characterized in that it consists in pre-mounting on the one hand a structure equipped with selection modules and on the other hand in a rigid drive assembly comprising two longitudinal shafts arranged co-axially inside a rigid tube integral with two plates and a cam mechanism and mounting said drive assembly on said structure equipped with modules.
- This two-stage assembly makes it possible to obtain both good flexibility in the manufacture of the device, in particular with regard to the input side of the drive movement, and an improvement in the working conditions of the operators who can perform their tasks. under conditions adapted to the assembly of each sub-assembly considered.
- the drive assembly can, if necessary, be pre-mounted in a clean room and moved to the structure of the crowd training device when all of its protective covers are in place.
- the method also consists in equipping the structure with modules distributed in pre-assembled baskets. This further facilitates the work of operators.
- the mounting of the drive assembly on the structure equipped with modules is carried out in a removable manner.
- This removable nature makes it possible to separate these assemblies, in particular in the event of modification of the customer's order or for maintenance operations.
- the invention finally relates to a Jacquard type loom equipped with a crowd training device as previously described.
- the knives or blades of a crowd-forming mechanism are divided into two groups 1 and 1 ′ each suspended from a frame of claws animated by vertical reciprocating movements in phase opposition.
- the claw frames are formed by bars 2 and 3.
- the ends of bars 2 and 3 are engaged in slides 4 rigidly fixed to the frame of the device which is not shown in FIG. 1, but which appears in FIG. 2 in the form of two beams 5 and 6 with a C section.
- each bar belonging to the claw frame is associated with a substantially horizontal lever.
- These levers bear the references 7 and 8 and are respectively associated with bars 2 and 3.
- One end of each lever is coupled to the corresponding bar while the opposite end pivots on the fixed frame around an axis X 1 -X 1 'fixed.
- the slides 4 can be omitted because the bars 2 and 3 have a length which does not require very precise guidance.
- a shaft 10 for inputting the movement of the crowd-forming device.
- This shaft 10 is connected by means of a coupling 11 to a second shaft 12 driven in continuous rotation by the shaft of the loom with which the shedding device is associated.
- each cam 13 or 14 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.
- the periphery of the discs of the two cams 13 and 14 form raceway for rollers 15, shown in the form of arrows, which are carried by radial arms 16 a , 16 b , 17 a and 17 b , oriented opposite each other and axially offset l one over the other.
- These arms form two rockers 16 and 17.
- the rocker 16 is fixed at the end of a shaft 20, mounted coaxially inside a shaft 21 of length slightly shorter than that of the shaft 20.
- the rocker 17 is fixed at the end of the shaft 21.
- the two shafts 20 and 21 are arranged co-axially inside a rigid tube 22 secured to two plates 23 and 24 capable of being assembled on the beams 5 and 6, for example by means of screws represented by their center lines 25 and 26 in FIG. 2.
- the two co-axial shafts 20 and 21 are suitably rotatably supported in bearings added in the plates 23 and 24 and they are oriented along the longitudinal axis median of the mechanical frame in the upper part of it.
- the cam mechanism constituted by the elements 13 to 17 ensures the transformation of the continuous rotational movement of the input shaft 10 into an oscillating movement, while the two co-axial shafts 20 and 21 are driven by an alternating movement , in synchronism and in phase opposition, one with respect to the other.
- the outer shaft 21 is cut out from two openings 21 a offset axially from one another and oriented opposite one of the 'other.
- Each of these lights 21a is traversed by a lever 28 fixed radially to the inner shaft 20.
- a lever 29 is fixed radially to the outer shaft 21 along the axis of the lever 28 corresponding .
- Each of the pairs of opposite levers 28 and 29 therefore constitutes a sort of plague which the two concentric shafts 20 and 21 animate with an oscillating movement.
- the tube 22 makes it possible to constitute a rigid assembly which can be qualified as a "drive assembly” with the shafts 10, 20 and 21 and the plates 23 and 24, this assembly being able to be mounted in one operation, on a structure which includes hook selection modules belonging to the crowd training device.
- the tube 22 is connected to the plates 23 and 24 by means of upper extensions 23 a and 24 a and lower 23 b and 24 b disposed respectively above and below the pairs of levers 28 and 29 at the two ends of the tube 22.
- Each lever 28 and 29 is pierced by an arcuate slot 28a, respectively 29a for the adjustable fastening of a vertical rod 30 shown in axis lines in Figure 1.
- the links 30 allow to alternately raise the bars 2 and 3.
- the movement of the costers 1 and 1 ′ is obtained from the rotation of the shaft 10 thanks to the transformation of the continuous rotation movement into a reciprocating oscillation movement inside the tube 22.
- baskets 31 are provided in which are installed selection modules 31 ′, for example electromagnetic, intended to immobilize the hooks connected to the heddles of the harness of the Jacquard mechanism at a given point of their trajectory.
- These modules can be of any known type.
- the use of baskets 31, which are shown empty in FIG. 2 with the exception of a module 31 ′ in order to simplify the diagram, allows the baskets to be filled with modules according to a chosen configuration, then the installation of these modules 31 ', in groups each corresponding to a basket 31, between the beams 5 and 6. This procedure makes it easier to assemble in the sense that each basket can be equipped with a chosen number of modules which can be tested at by means of a device of suitable capacity.
- the baskets 31 are easily put in place between the beams 5 and 6 because access to the volume located between these beams is free because the device for driving the bars 2 and 3, visible in FIG. 1, doesn’t is not yet installed.
- Another operator can proceed, in a specially dedicated workshop, and in particular in a clean room, with the assembly of the rigid drive assembly which comprises the input shaft 10, the two longitudinal shafts 20 and 21, the tube 22 , the plates 23 and 24 and the cam mechanism 13 to 17 which appears when mounted in the upper part of FIG. 2.
- this drive assembly is provided with a cover 33 which protects the cam mechanism while a sleeve 34 surrounds the shaft 10 while being fixed on the cover 33.
- the drive assembly is a rigid and robust device which can be manipulated, for example by means of a hoist, in order to be put in place on the structure, represented by beams 5 and 6, fitted with modules, after the baskets 31 have been put in place.
- the assembly of the drive assembly on the beams 5 and 6 is carried out in a removable manner, so that, during a maintenance operation, it is possible to separate the drive assembly for the rest of the structure of the crowd formation device in order to intervene on the modules by removing the baskets 31.
- YY the middle axis of the plates 23 and 24. As it appears in FIG. 2, this axis is offset with respect to the axis XX' common to the shafts 20 and 21 and to the tube 22. This corresponds to a construction more rational of the drive assembly in which the inclination of the connecting rods 30 is limited while the forces on the levers 7 and 8 are kept at a low level.
- the non-symmetrical construction of the plates 23 and 24 also makes it possible to limit the dimensions of the arcuate openings 28 a and 29 a .
- the plates 23 and 24 are symmetrical, that is to say that the axis XX 'is intersecting with the median axis YY' of these plates, so that the same drive assembly can be indifferently mounted with the input shaft oriented on one side or the other of the crowd-forming device.
- This device is also capable of producing an oblique crowd, even if the mechanical stresses are greater than in the case where the plates are asymmetrical.
- the rigid structure formed essentially by the tube 22 and the plates 23 and 24 makes it possible to support the shaft 10 in overhang, which avoids having to provide a force recovery tab. on the beams 5 and 6 for the support of the shaft 10.
- the lower structure of the device of the invention is thus simplified.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
L'invention a trait à un dispositif de formation de la foule pour métier à tisser de type Jacquard, à un procédé de montage d'un tel dispositif et à un métier à tisser équipé d'un tel dispositif de formation de la foule ou monté selon un tel procédé. L'invention est plus particulièrement centrée sur l'actionnement vertical, en opposition de phases, des deux séries de lames ou couteaux qui assurent la commande des crochets d'une mécanique d'armure.The invention relates to a crowd forming device for a Jacquard type weaving loom, to a method of mounting such a device and to a weaving loom equipped with such a crowd forming device or mounted according to such a method. The invention is more particularly centered on the vertical actuation, in phase opposition, of the two series of blades or knives which ensure the control of the hooks of an armor mechanism.
Dans un dispositif de formation de la foule, des crochets sont disposés suivant des rangées parallèles séparées les unes des autres par des espaces dans chacun desquels se déplace verticalement un couteau. Ce couteau est le plus souvent supporté 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 couteaux s'effectue simultanément, en sens inverse l'un de l'autre, afin d'opérer l'ouverture du pas pour l'insertion du fil de trame.In a crowd formation device, hooks are arranged in parallel rows separated from each other by spaces in each of which a knife moves vertically. This knife 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 movements of the knives take place simultaneously, in opposite directions to each other, in order to operate the opening of the pitch for the insertion of the weft thread.
Dans les mécaniques traditionnelles telles que, notamment, connues de la demande de brevet FR-A-2 669 650, il est prévu un arbre unique qui est lié à l'arbre principal du métier à tisser et qui s'étend sur toute la largeur du bâti de la mécanique. Au voisinage de chacune de ses extrémités, cet arbre, qui est animé d'un mouvement de rotation continue, est équipé de deux systèmes adjacents de cames ou excentriques propres à transformer cette rotation continue en une rotation alternative afin de conférer au levier qui porte les cadres de griffes le mouvement d'abaissement et de levée désiré. Ces mécaniques traditionnelles présentent 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.In traditional mechanics such as, in particular, known from patent application FR-A-2,669,650, a single shaft is provided which is linked to the main shaft of the loom and which extends over the entire width. of the mechanical frame. 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 lever which carries the claw frames the desired lowering and lifting movement. These traditional mechanics have a number of drawbacks. The presence of the mechanisms for transforming the continuous movement into reciprocating movement substantially 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.
En outre, l'arbre de sortie du métier à tisser sur lequel doit être installé le dispositif de formation de la foule peut être situé du côté gauche ou du côté droit de ce métier. Il est d'usage de prévoir que le dispositif de formation de la foule puisse être adapté à des métiers avec arbre de sortie à gauche ou à droite. Cependant, il arrive que le tisseur qui utilisera le métier décide de changer de type ou de fournisseur de métier alors qu'il maintient son choix en ce qui concerne le dispositif de formation de la foule, de sorte qu'il est parfois nécessaire de changer le côté d'entrée du mouvement dans le dispositif de formation de la foule. Avec les dispositifs connus, cette modification est longue et complexe. En particulier, elle induit des interventions importantes sur les organes périphériques de la mécanique tels que le châssis et les éléments de transmission.In addition, the output shaft of the loom on which the shedding device is to be installed can be located on the left or right side of this loom. It is it is customary to provide that the crowd training device can be adapted to trades with an output shaft on the left or on the right. However, it sometimes happens that the weaver who will use the loom decides to change the type or supplier of loom while he maintains his choice with regard to the crowd training device, so that it is sometimes necessary to change the entry side of the movement into the crowd formation device. With known devices, this modification is long and complex. In particular, it induces significant interventions on the peripheral mechanical parts such as the chassis and the transmission elements.
C'est à ces inconvénients qu'entend principalement remédier la présente invention, laquelle consiste essentiellement à prévoir deux arbres longitudinaux disposés co-axialement à l'intérieur d'un tube rigide solidaire de deux platines de support desdits arbres et d'un mécanisme à cames transmettant un mouvement de rotation alternatif d'un arbre d'entrée du dispositif de formation de la foule aux arbres longitudinaux.It is to these drawbacks that the present invention mainly intends to remedy, which essentially consists in providing two longitudinal shafts arranged co-axially inside a rigid tube integral with two support plates for said shafts and a mechanism for cams transmitting an alternating rotational movement from an input shaft of the shedding device to the longitudinal shafts.
Grâce à l'invention, les arbres longitudinaux co-axiaux constituent un dispositif efficace et peu complexe permettant de transformer, avec le mécanisme à cames, le mouvement de l'arbre d'entrée en mouvement de commande des cadres de griffes. Grâce au tube rigide, les platines et les arbres longitudinaux co-axiaux constituent un ensemble solide qui peut être manipulé de façon unitaire, par exemple au moyen d'un palan, afin d'être placé sur la structure du dispositif de formation de la foule. On obtient ainsi, une grande flexibilité lors de la fabrication de dispositifs de formation de la foule conforme à l'invention, dans la mesure où l'ensemble formé des arbres longitudinaux, du tube, des platines et du mécanisme à cames peut être monté sur la structure du dispositif lorsque le côté par lequel le mouvement entre dans le dispositif de formation de la foule est connu de façon certaine.Thanks to the invention, the coaxial longitudinal shafts constitute an efficient and not very complex device making it possible to transform, with the cam mechanism, the movement of the input shaft into the movement for controlling the claw frames. Thanks to the rigid tube, the plates and the longitudinal co-axial shafts constitute a solid assembly which can be manipulated in a unitary manner, for example by means of a hoist, in order to be placed on the structure of the crowd forming device. . This gives great flexibility in the manufacture of crowd forming devices according to the invention, insofar as the assembly formed by the longitudinal shafts, the tube, the plates and the cam mechanism can be mounted on the structure of the device when the side by which the movement enters the crowd-forming device is known with certainty.
Selon un premier aspect avantageux de l'invention, les platines sont montées de façon amovible sur la structure du dispositif. Cet aspect de l'invention, facilite les opérations de maintenance car, lorsqu'il est nécessaire d'accéder, par exemple, aux modules de sélection des crochets du dispositif de formation de la foule, on peut désolidariser les platines de la structure et ôter l'ensemble d'entraînement formé par les platines, les arbres, le tube et le mécanisme à cames.According to a first advantageous aspect of the invention, the plates are removably mounted on the structure of the device. This aspect of the invention facilitates maintenance operations because, when it is necessary to access, by For example, with the selection modules for the hooks of the crowd formation device, the plates can be separated from the structure and the drive assembly formed by the plates, the shafts, the tube and the cam mechanism can be removed.
Selon un autre aspect avantageux de l'invention, les platines sont aptes à être montées sur la structure dans deux positions correspondant respectivement au positionnement de l'arbre d'entrée d'un côté ou de l'autre du dispositif. Cet aspect de l'invention permet donc de réaliser, avec le même ensemble d'entraînement, un dispositif de formation de la foule avec entrée du mouvement à droite ou à gauche.According to another advantageous aspect of the invention, the plates are capable of being mounted on the structure in two positions corresponding respectively to the positioning of the input shaft on one side or the other of the device. This aspect of the invention therefore makes it possible to produce, with the same drive assembly, a crowd training device with movement input on the right or on the left.
Selon un premier mode de réalisation avantageux de l'invention, les platines sont asymétriques, c'est-à-dire l'axe commun aux arbres longitudinaux et au tube est décalé par rapport à l'axe médian des platines. Cette variante de l'invention permet d'obtenir de façon simple une foule oblique.According to a first advantageous embodiment of the invention, the plates are asymmetrical, that is to say the axis common to the longitudinal shafts and to the tube is offset with respect to the median axis of the plates. This variant of the invention makes it possible to obtain an oblique crowd in a simple manner.
Selon une autre variante avantageuse de l'invention, les platines sont symétriques, c'est-à-dire l'axe commun aux arbres longitudinaux et au tube est sécant avec l'axe médian de ladite platine. Cet aspect de l'invention permet d'utiliser les mêmes platines pour leur montage dans les deux positions correspondant à une entrée du mouvement à droite et une entrée du mouvement à gauche.According to another advantageous variant of the invention, the plates are symmetrical, that is to say the axis common to the longitudinal shafts and to the tube is intersecting with the median axis of said plate. This aspect of the invention makes it possible to use the same plates for their mounting in the two positions corresponding to an entry of the movement on the right and an entry of the movement on the left.
Selon un autre aspect particulièrement avantageux de l'invention, utilisable avec tous les types de platines, lorsque le dispositif de formation de la foule comprend des modules électro-magnétiques de sélection des crochets en appui sur les couteaux, ces modules sont répartis dans des paniers aptes à être mis en place dans le dispositif une fois les modules en place dans les paniers. Cet aspect de l'invention permet de préparer les modules à l'extérieur du dispositif de formation de la foule, c'est-à-dire en particulier sur un établi permettant un travail confortable pour un opérateur et de bonne qualité et de les installer ensuite par groupes dans le dispositif de l'invention.According to another particularly advantageous aspect of the invention, usable with all types of plates, when the crowd formation device comprises electromagnetic modules for selecting the hooks resting on the knives, these modules are distributed in baskets able to be put in place in the device once the modules are in place in the baskets. This aspect of the invention makes it possible to prepare the modules outside the crowd training device, that is to say in particular on a workbench allowing comfortable work for an operator and of good quality and to install them. then by groups in the device of the invention.
L'invention concerne aussi un procédé de montage d'un dispositif de formation de la foule, en particulier tel que décrit précédemment. Ce procédé est caractérisé en ce qu'il consiste à pré-monter d'une part une structure équipée de modules de sélection et d'autre part en ensemble d'entraînement rigide comprenant deux arbres longitudinaux disposés co-axialement à l'intérieur d'un tube rigide solidaire de deux platines et un mécanisme à cames et à monter ledit ensemble d'entraînement sur ladite structure équipée de modules. Ce montage en deux temps permet d'obtenir à la fois une bonne souplesse dans la fabrication du dispositif, en particulier au sujet du côté d'entrée du mouvement d'entraînement, et une amélioration des conditions de travail des opérateurs qui peuvent effectuer leurs tâches dans des conditions adaptées au montage de chaque sous-ensemble considéré. En particulier, l'ensemble d'entraînement peut, si nécessaire, être pré-monté dans une salle blanche et déplacé vers la structure du dispositif de formation de la foule lorsque tous ses capots de protection sont en place.The invention also relates to a method of mounting a crowd training device, in particular as described above. This process is characterized in that it consists in pre-mounting on the one hand a structure equipped with selection modules and on the other hand in a rigid drive assembly comprising two longitudinal shafts arranged co-axially inside a rigid tube integral with two plates and a cam mechanism and mounting said drive assembly on said structure equipped with modules. This two-stage assembly makes it possible to obtain both good flexibility in the manufacture of the device, in particular with regard to the input side of the drive movement, and an improvement in the working conditions of the operators who can perform their tasks. under conditions adapted to the assembly of each sub-assembly considered. In particular, the drive assembly can, if necessary, be pre-mounted in a clean room and moved to the structure of the crowd training device when all of its protective covers are in place.
Selon une variante avantageuse de l'invention, le procédé consiste en outre à équiper la structure en modules répartis dans des paniers pré-montés. Ceci facilite encore le travail des opérateurs.According to an advantageous variant of the invention, the method also consists in equipping the structure with modules distributed in pre-assembled baskets. This further facilitates the work of operators.
Selon un autre aspect avantageux du procédé de l'invention, le montage de l'ensemble d'entraînement sur la structure équipée de modules est réalisé de façon amovible. Ce caractère amovible permet de désolidariser ces ensembles, en particulier en cas de modification de la commande du client ou pour des opérations de maintenance.According to another advantageous aspect of the method of the invention, the mounting of the drive assembly on the structure equipped with modules is carried out in a removable manner. This removable nature makes it possible to separate these assemblies, in particular in the event of modification of the customer's order or for maintenance operations.
L'invention concerne enfin un métier à tisser du type Jacquard équipé d'un dispositif de formation de la foule tel que précédemment décrit.The invention finally relates to a Jacquard type loom equipped with a crowd training device as previously described.
L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'un dispositif de formation de la foule pour métier à tisser 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 en perspective des éléments cinématiques d'un dispositif de formation de la foule conforme à l'invention ;
- la figure 2 est une vue en perspective éclatée d'un dispositif de formation de la foule conforme à l'invention en cours de montage et
- la figure 3 est une coupe axiale schématique partielle d'un dispositif conforme à l'invention.
- Figure 1 is a perspective view of the kinematic elements of a crowd forming device according to the invention;
- FIG. 2 is an exploded perspective view of a crowd formation device according to the invention during assembly and
- Figure 3 is a partial schematic axial section of a device according to the invention.
A la figure 1, les couteaux ou lames d'un mécanisme de formation de la foule sont divisés en deux groupes 1 et 1' suspendus chacun à un cadre de griffes animé de mouvements de va-et-vient verticaux en opposition de phases. Les cadres de griffes sont formés par des barres 2 et 3. Les extrémités des barres 2 et 3 sont engagées dans des coulisses 4 rigidement fixées au bâti du dispositif qui n'est pas représenté à la figure 1, mais qui apparaît à la figure 2 sous la forme de deux poutres 5 et 6 à section en C.In FIG. 1, the knives or blades of a crowd-forming mechanism are divided into two groups 1 and 1 ′ each suspended from a frame of claws animated by vertical reciprocating movements in phase opposition. The claw frames are formed by bars 2 and 3. The ends of bars 2 and 3 are engaged in slides 4 rigidly fixed to the frame of the device which is not shown in FIG. 1, but which appears in FIG. 2 in the form of two beams 5 and 6 with a C section.
Afin d'améliorer le guidage de son mouvement vertical alternatif, chaque barre appartenant au cadre de griffes est associée à un levier sensiblement horizontal. Ces leviers portent les références 7 et 8 et sont respectivement associés aux barres 2 et 3. L'une des extrémités de chaque levier est attelée à la barre correspondante alors que l'extrémité opposée pivote sur le bâti fixe autour d'un axe X1-X1' fixe. Dans le cas où la profondeur de la machine, parfois dénommée profondeur de garnissage, est relativement faible, par exemple inférieure à 800 mm, on peut supprimer les coulisses 4 car les barres 2 et 3 ont une longueur ne nécessitant pas de guidage très précis.In order to improve the guidance of its alternating vertical movement, each bar belonging to the claw frame is associated with a substantially horizontal lever. These levers bear the references 7 and 8 and are respectively associated with bars 2 and 3. One end of each lever is coupled to the corresponding bar while the opposite end pivots on the fixed frame around an axis X 1 -X 1 'fixed. In the case where the depth of the machine, sometimes called the packing depth, is relatively small, for example less than 800 mm, the slides 4 can be omitted because the bars 2 and 3 have a length which does not require very precise guidance.
Au-dessus des couteaux 1 et 1' est monté un arbre 10 d'entrée du mouvement du dispositif de formation de la foule. Cet arbre 10 est raccordé au moyen d'un accouplement 11 à un second arbre 12 entraîné en rotation continue par l'arbre du métier à tisser auquel le dispositif de formation de la foule est associé.Above the knives 1 and 1 ′ is mounted a shaft 10 for inputting the movement of the crowd-forming device. This shaft 10 is connected by means of a coupling 11 to a second shaft 12 driven in continuous rotation by the shaft of the loom with which the shedding device is associated.
Sur la partie de l'arbre 10 qui est disposée à l'opposé de l'accouplement 11 sont calées deux cames conjuguées 13 et 14 qui apparaissent plus clairement à la figue 3. De façon connue en soi, chaque came 13 ou 14 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. La périphérie des disques des deux cames 13 et 14 forment piste de roulement pour des galets 15, figurés sous la forme de flèches, qui sont portés par des bras radiaux 16a, 16b, 17a et 17b, orientés à l'opposé l'un de l'autre et décalés axialement l'un par rapport à l'autre. Ces bras forment deux bascules 16 et 17. La bascule 16 est fixée en bout d'un arbre 20, monté de façon co-axiale à l'intérieur d'un arbre 21 de longueur légèrement inférieure à celle de l'arbre 20. La bascule 17 est fixée en bout de l'arbre 21.On the part of the shaft 10 which is disposed opposite the coupling 11 are wedged two conjugate cams 13 and 14 which appear more clearly in fig 3. In a manner known per se, each cam 13 or 14 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. The periphery of the discs of the two cams 13 and 14 form raceway for rollers 15, shown in the form of arrows, which are carried by radial arms 16 a , 16 b , 17 a and 17 b , oriented opposite each other and axially offset l one over the other. These arms form two rockers 16 and 17. The rocker 16 is fixed at the end of a shaft 20, mounted coaxially inside a shaft 21 of length slightly shorter than that of the shaft 20. The rocker 17 is fixed at the end of the shaft 21.
Conformément à l'invention, les deux arbres 20 et 21 sont disposés co-axialement à l'intérieur d'un tube rigide 22 solidaire de deux platines 23 et 24 susceptibles d'être assemblées sur les poutres 5 et 6, par exemple au moyen de vis représentées par leurs traits d'axes 25 et 26 à la figure 2. Les deux arbres co-axiaux 20 et 21 sont convenablement supportés à rotation dans des roulements rapportés dans les platines 23 et 24 et ils sont orientés suivant l'axe longitudinal médian du bâti de la mécanique dans la partie supérieure de celui-ci. Le mécanisme à cames constitué par les éléments 13 à 17 assure la transformation du mouvement de rotation continue de l'arbre d'entrée 10 en un mouvement oscillant, alors que les deux arbres co-axiaux 20 et 21 sont animés d'un déplacement alternatif, en synchronisme et en opposition de phases, l'un par rapport à l'autre.According to the invention, the two shafts 20 and 21 are arranged co-axially inside a rigid tube 22 secured to two plates 23 and 24 capable of being assembled on the beams 5 and 6, for example by means of screws represented by their center lines 25 and 26 in FIG. 2. The two co-axial shafts 20 and 21 are suitably rotatably supported in bearings added in the plates 23 and 24 and they are oriented along the longitudinal axis median of the mechanical frame in the upper part of it. The cam mechanism constituted by the elements 13 to 17 ensures the transformation of the continuous rotational movement of the input shaft 10 into an oscillating movement, while the two co-axial shafts 20 and 21 are driven by an alternating movement , in synchronism and in phase opposition, one with respect to the other.
Au voisinage immédiat de la face intérieure de chacune des deux platines 23 et 24, l'arbre extérieur 21 est découpé de deux lumières 21a décalées axialement l'une par rapport à l'autre et orientées à l'opposé l'une de l'autre. Chacune de ces lumières 21a est traversée par un levier 28 fixé radialement à l'arbre intérieur 20. A l'opposé de chaque levier 28, un levier 29 est solidaire radialement de l'arbre extérieur 21 suivant l'axe du levier 28 correspondant. Chacune des paires de leviers 28 et 29 opposés constitue donc une sorte de fléau que les deux arbres concentriques 20 et 21 animent d'un mouvement oscillant.In the immediate vicinity of the inner face of each of the two plates 23 and 24, the outer shaft 21 is cut out from two openings 21 a offset axially from one another and oriented opposite one of the 'other. Each of these lights 21a is traversed by a lever 28 fixed radially to the inner shaft 20. At the opposite of each lever 28, a lever 29 is fixed radially to the outer shaft 21 along the axis of the lever 28 corresponding . Each of the pairs of opposite levers 28 and 29 therefore constitutes a sort of plague which the two concentric shafts 20 and 21 animate with an oscillating movement.
Comme représenté à la figure 2, le tube 22 permet de constituer un ensemble rigide que l'on peut qualifier "d'ensemble d'entraînement" avec les arbres 10, 20 et 21 et les platines 23 et 24, cet ensemble pouvant être monté, en une opération, sur une structure qui comprend des modules de sélection des crochets appartenant au dispositif de formation de la foule.As shown in FIG. 2, the tube 22 makes it possible to constitute a rigid assembly which can be qualified as a "drive assembly" with the shafts 10, 20 and 21 and the plates 23 and 24, this assembly being able to be mounted in one operation, on a structure which includes hook selection modules belonging to the crowd training device.
Le tube 22 est relié aux platines 23 et 24 grâce à des extensions supérieures 23a et 24a et inférieures 23b et 24b disposées respectivement au-dessus et en dessous des paires de leviers 28 et 29 aux deux extrémités du tube 22.The tube 22 is connected to the plates 23 and 24 by means of upper extensions 23 a and 24 a and lower 23 b and 24 b disposed respectively above and below the pairs of levers 28 and 29 at the two ends of the tube 22.
Chaque levier 28 et 29 est percé d'une lumière arquée 28a, respectivement 29a, pour la fixation réglable d'une biellette verticale 30 représentée en traits d'axes à la figure 1. Les biellettes 30 permettent de soulever alternativement les barres 2 et 3. Ainsi, le mouvement des couteux 1 et 1' est obtenu à partir de la rotation de l'arbre 10 grâce à la transformation du mouvement de rotation continu en un mouvement d'oscillation en va-et-vient à l'intérieur du tube 22.Each lever 28 and 29 is pierced by an arcuate slot 28a, respectively 29a for the adjustable fastening of a vertical rod 30 shown in axis lines in Figure 1. The links 30 allow to alternately raise the bars 2 and 3. Thus, the movement of the costers 1 and 1 ′ is obtained from the rotation of the shaft 10 thanks to the transformation of the continuous rotation movement into a reciprocating oscillation movement inside the tube 22.
Selon un aspect particulièrement avantageux de l'invention, des paniers 31 sont prévus dans lesquels sont installés des modules de sélection 31', par exemple électro-magnétiques, destinés à immobiliser les crochets reliés aux lisses du harnais de la mécanique Jacquard en un point donné de leur trajectoire. Ces modules peuvent être de tout type connu. L'utilisation des paniers 31, qui sont représentés vides à la figure 2 à l'exception d'un module 31' afin de simplifier le schéma, permet le remplissage des paniers en modules selon une configuration choisie, puis la mise en place de ces modules 31', par groupes correspondant chacun à un panier 31, entre les poutres 5 et 6. Cette façon de procéder permet de faciliter le montage en ce sens que chaque panier peut être équipé d'un nombre choisi de modules qui peuvent être testés au moyen d'un dispositif de capacité adaptée.According to a particularly advantageous aspect of the invention, baskets 31 are provided in which are installed selection modules 31 ′, for example electromagnetic, intended to immobilize the hooks connected to the heddles of the harness of the Jacquard mechanism at a given point of their trajectory. These modules can be of any known type. The use of baskets 31, which are shown empty in FIG. 2 with the exception of a module 31 ′ in order to simplify the diagram, allows the baskets to be filled with modules according to a chosen configuration, then the installation of these modules 31 ', in groups each corresponding to a basket 31, between the beams 5 and 6. This procedure makes it easier to assemble in the sense that each basket can be equipped with a chosen number of modules which can be tested at by means of a device of suitable capacity.
Ensuite, les paniers 31 sont facilement mis en place entre les poutres 5 et 6 car l'accès au volume situé entre ces poutres est libre du fait que le dispositif d'entraînement des barres 2 et 3, visibles à la figure 1, n'est pas encore installé. Un autre opérateur peut procéder, dans un atelier spécialement dédié, et notamment dans une salle blanche, au montage de l'ensemble d'entraînement rigide qui comprend l'arbre d'entrée 10, les deux arbres longitudinaux 20 et 21, le tube 22, les platines 23 et 24 et le mécanisme à cames 13 à 17 qui apparaît une fois monté à la partie supérieure de la figure 2. On note que cet ensemble d'entraînement est pourvu d'un capot 33 qui protège le mécanisme à cames alors qu'un manchon 34 entoure l'arbre 10 en étant fixé sur le capot 33. Ainsi, l'ensemble d'entraînement est un dispositif rigide et robuste pouvant être manipulé, par exemple au moyen d'un palan, afin d'être mis en place sur la structure, représentée par les poutres 5 et 6, équipée des modules, après la mise en place des paniers 31.Then, the baskets 31 are easily put in place between the beams 5 and 6 because access to the volume located between these beams is free because the device for driving the bars 2 and 3, visible in FIG. 1, doesn’t is not yet installed. Another operator can proceed, in a specially dedicated workshop, and in particular in a clean room, with the assembly of the rigid drive assembly which comprises the input shaft 10, the two longitudinal shafts 20 and 21, the tube 22 , the plates 23 and 24 and the cam mechanism 13 to 17 which appears when mounted in the upper part of FIG. 2. It is noted that this drive assembly is provided with a cover 33 which protects the cam mechanism while a sleeve 34 surrounds the shaft 10 while being fixed on the cover 33. Thus, the drive assembly is a rigid and robust device which can be manipulated, for example by means of a hoist, in order to be put in place on the structure, represented by beams 5 and 6, fitted with modules, after the baskets 31 have been put in place.
Selon un aspect avantageux de l'invention, l'assemblage de l'ensemble d'entraînement sur les poutres 5 et 6 est réalisé de façon amovible, de sorte que, lors d'une opération de maintenance, il est possible de séparer l'ensemble d'entraînement du reste de la structure du dispositif de formation de la foule afin d'intervenir, sur les modules en retirant les paniers 31.According to an advantageous aspect of the invention, the assembly of the drive assembly on the beams 5 and 6 is carried out in a removable manner, so that, during a maintenance operation, it is possible to separate the drive assembly for the rest of the structure of the crowd formation device in order to intervene on the modules by removing the baskets 31.
Au vu de la figure 2 en particulier, on comprend que l'ensemble d'entraînement formé par les arbres 20 et 21, le tube 22, les platines 24 et 25 et l'arbre d'entrée 10, le capot 33 et le manchon 34 peut être monté sur les poutres 5 et 6 dans deux positions correspondant respectivement au positionnement de l'arbre d'entrée 10 d'un côté ou de l'autre du dispositif. Ceci permet donc d'adapter un dispositif de formation de la foule conforme à l'invention aux souhaits du client, y compris lorsque celui-ci doit être satisfait dans les plus brefs délais. Il suffit en effet de conserver, dans le stock du fabricant de dispositifs de formation de la foule, un nombre adéquat d'ensembles d'entraînement et un nombre adéquat de structures de dispositif de formation de la foule.In view of Figure 2 in particular, it is understood that the drive assembly formed by the shafts 20 and 21, the tube 22, the plates 24 and 25 and the input shaft 10, the cover 33 and the sleeve 34 can be mounted on the beams 5 and 6 in two positions corresponding respectively to the positioning of the input shaft 10 on one side or the other of the device. This therefore makes it possible to adapt a crowd training device according to the invention to the wishes of the client, including when the latter must be satisfied as soon as possible. It suffices to keep, in the inventory of the manufacturer of crowd training devices, an adequate number of drive assemblies and an adequate number of structures of crowd training device.
On note YY' l'axe médian des platines 23 et 24. Comme il apparaît à la figure 2, cet axe est décalé par rapport à l'axe XX' commun aux arbres 20 et 21 et au tube 22. Ceci correspond à une construction plus rationnelle de l'ensemble d'entraînement dans lequel l'inclinaison des bielles 30 est limitée alors que les efforts sur les leviers 7 et 8 sont maintenus à un niveau faible. On peut en particulier régler l'obliquité de la foule au moyen des lumières arquées 28a et 29a. La construction non symétrique des platines 23 et 24 permet en outre de limiter les dimensions des lumières arquées 28a et 29a.We denote YY 'the middle axis of the plates 23 and 24. As it appears in FIG. 2, this axis is offset with respect to the axis XX' common to the shafts 20 and 21 and to the tube 22. This corresponds to a construction more rational of the drive assembly in which the inclination of the connecting rods 30 is limited while the forces on the levers 7 and 8 are kept at a low level. One can in particular adjust the obliquity of the crowd by means of the arched lights 28 a and 29 a . The non-symmetrical construction of the plates 23 and 24 also makes it possible to limit the dimensions of the arcuate openings 28 a and 29 a .
Cependant, selon une variante non représentée de l'invention, on peut prévoir que les platines 23 et 24 sont symétriques, c'est-à-dire que l'axe XX' est sécant avec l'axe médian YY' de ces platines, de sorte qu'un même ensemble d'entraînement peut être indifféremment monté avec l'arbre d'entrée orienté d'un côté ou de l'autre du dispositif de formation de la foule. Ce dispositif est aussi capable de réaliser une foule oblique, même si les contraintes mécaniques sont plus importantes que dans le cas où les platines sont asymétriques.However, according to a variant not shown of the invention, it can be provided that the plates 23 and 24 are symmetrical, that is to say that the axis XX 'is intersecting with the median axis YY' of these plates, so that the same drive assembly can be indifferently mounted with the input shaft oriented on one side or the other of the crowd-forming device. This device is also capable of producing an oblique crowd, even if the mechanical stresses are greater than in the case where the plates are asymmetrical.
Selon un aspect avantageux de l'invention, la structure rigide formée essentiellement par le tube 22 et les platines 23 et 24 permet de soutenir l'arbre 10 en porte-à-faux, ce qui évite de prévoir une patte de reprise d'effort sur les poutres 5 et 6 pour le support de l'arbre 10. La structure inférieure du dispositif de l'invention est ainsi simplifiée.According to an advantageous aspect of the invention, the rigid structure formed essentially by the tube 22 and the plates 23 and 24 makes it possible to support the shaft 10 in overhang, which avoids having to provide a force recovery tab. on the beams 5 and 6 for the support of the shaft 10. The lower structure of the device of the invention is thus simplified.
Claims (10)
- A shed-forming device for a weaving loom of the Jacquard type, in which alternating vertical actuation of two series of blades (1, 1') is operated from an input shaft (10) to which a continuous rotary motion is imparted,
characterised in that it comprises two longitudinal shafts (20, 21) disposed coaxially inside a rigid tube (22) integral with two support plates (23, 24) for said shafts and a cam mechanism (13-17) transmitting an alternating rotary motion from said input shaft to said longitudinal shafts. - A shed-forming device according to claim 1,
characterised in that said plates (23, 24) are mounted in removable manner on a framework (5, 6) of said device. - A shed-forming device according to claim 2,
characterised in that said plates (23, 24) are capable of being mounted on said framework (5, 6) in two positions corresponding respectively to the positioning of said input shaft (10) on one or other side of said device. - A shed-forming device according to any one of the preceding claims, characterised in that said plates (23, 24) are asymmetrical, that is to say the axis (XX') common to said longitudinal shafts (20, 21) is offset with respect to the median axis (YY') of said plates.
- A shed-forming device according to any one of claims 1 to 3, characterised in that said plates are symmetrical, that is to say the axis common to said longitudinal shafts intersects the median axis of said plates.
- A shed-forming device according to any one of the preceding claims, comprising electromagnetic modules for selecting the hooks supported on said blades, characterised in that said modules (31') are distributed in magazines (31) capable of being positioned in said device once said modules are in place in said magazines.
- A process for assembling a shed-forming device,
characterised in that it comprises preassembling a framework (5, 6) equipped with selection modules (31'), on the one hand, and a rigid drive unit comprising two longitudinal shafts (20, 21) disposed coaxially inside a rigid tube (22) integral with two plates (23, 24) and a cam mechanism (13-17), on the other hand, and mounting said drive unit on said framework equipped with modules. - An assembly process according to claim 7,
characterised in that it comprises equipping said framework with modules (31') distributed in preassembled magazines (31). - An assembly process according to claim 7,
characterised in that mounting of said drive unit (13-17, 20-24) on said framework (5, 6) equipped with modules (31') is effected in removable manner. - A weaving loom of the Jacquard type, equipped with a shed-forming device according to any one of claims 1 to 6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9616004 | 1996-12-19 | ||
FR9616004A FR2757544B1 (en) | 1996-12-19 | 1996-12-19 | CROWD FORMING DEVICE, MOUNTING METHOD AND JACQUARD TYPE WEAVING EQUIPMENT PROVIDED WITH SUCH A DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0849384A1 EP0849384A1 (en) | 1998-06-24 |
EP0849384B1 true EP0849384B1 (en) | 2000-04-05 |
Family
ID=9499131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97420236A Expired - Lifetime EP0849384B1 (en) | 1996-12-19 | 1997-12-17 | Shedding mechanism, method of assembly thereof and Jacuard loom with such a mechanism |
Country Status (7)
Country | Link |
---|---|
US (1) | US5927347A (en) |
EP (1) | EP0849384B1 (en) |
JP (1) | JP3429172B2 (en) |
CN (1) | CN1061109C (en) |
DE (1) | DE69701616T2 (en) |
ES (1) | ES2144302T3 (en) |
FR (1) | FR2757544B1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2802219B1 (en) * | 1999-12-14 | 2002-10-18 | Staubli Sa Ets | CROWD FORMING DEVICE FOR JACQUARD-TYPE WEAVING |
BE1013564A3 (en) | 2000-06-16 | 2002-04-02 | Wiele Michel Van De Nv | DEVICE FOR KNIVES beams OF THE LEGAL GUIDE IN A Jacquard machine. |
FR2835537B1 (en) * | 2002-02-07 | 2004-10-01 | Staubli Lyon | CROWD FORMING DEVICE AND JACQUARD WEAVING MACHINE INCORPORATING SUCH A DEVICE |
FR2854642B1 (en) * | 2003-05-06 | 2005-07-08 | Staubli Lyon | CROWN FORMING DEVICE AND JACQUARD TYPE WEAVING EQUIPPED WITH SUCH A DEVICE |
BE1016559A4 (en) * | 2005-03-21 | 2007-01-09 | Wiele Michel Van De Nv | JACQUARD DEVICE. |
SE533266C2 (en) * | 2008-12-16 | 2010-08-03 | Texo Ab | Weaving machine with modular drive |
FR2945825B1 (en) * | 2009-05-19 | 2011-06-24 | Staubli Lyon | CROWN FORMATION DEVICE AND JACQUARD - TYPE WEAVING MACHINE EQUIPPED WITH SUCH A DEVICE. |
CN103290588B (en) * | 2013-06-05 | 2014-09-24 | 傅加龙 | Computer jacquard machine and transmission mechanism thereof |
US10264859B2 (en) | 2013-12-08 | 2019-04-23 | Ivonne Parker | Liquid dispenser device that can be worn as jewelry |
CN105386190A (en) * | 2015-11-27 | 2016-03-09 | 江苏莱纳多智能装备有限公司 | Transmission mechanism of cam opening jacquard machine |
CN105483895A (en) * | 2016-01-21 | 2016-04-13 | 张军波 | Conjugate cam jacquard shedding device |
CN107366071B (en) * | 2017-08-15 | 2023-05-12 | 丁秋亚 | Jacquard shedding device |
WO2020180655A1 (en) * | 2019-03-05 | 2020-09-10 | Thomas Jefferson University | Dynamic wall for augmented reality |
CN114592261B (en) * | 2022-03-15 | 2023-10-27 | 嵊州市和丰电子科技有限公司 | Jacquard with low machine body, low weight and high stability |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3721932A1 (en) * | 1987-07-02 | 1989-01-19 | Grosse Webereimaschinen Gmbh | DOUBLE LIFT OPEN-PACK JACQUARD MACHINE |
GB8723850D0 (en) * | 1987-10-10 | 1987-11-11 | Eltex Of Sweden Ltd | Warp thread control |
BE1004308A3 (en) * | 1989-07-17 | 1992-10-27 | Wiele Michel Van De Nv | DRIVE FOR KNIVES GRIDS OF A DOUBLE-HEF OPEN GAAP jacquard, jacquard LIKE SUCH A DRIVE SYSTEM EQUIPPED. |
FR2669650B1 (en) * | 1990-11-27 | 1994-04-29 | Staubli Verdol | MECHANISM FOR CONTROLLING THE FRAMES OF A CROWD FORMING DEVICE. |
FR2669648B1 (en) * | 1990-11-27 | 1993-01-29 | Staubli Verdol | ASSEMBLY FOR CONTROLLING THE MOVEMENT OF THE FRAMES OF A CROWD FORMING DEVICE SUCH AS AN ARMOR MECHANICS. |
DE9307391U1 (en) * | 1993-04-26 | 1993-09-30 | Textilma Ag, Hergiswil | Shed forming device for a weaving machine |
-
1996
- 1996-12-19 FR FR9616004A patent/FR2757544B1/en not_active Expired - Fee Related
-
1997
- 1997-12-12 US US08/989,654 patent/US5927347A/en not_active Expired - Lifetime
- 1997-12-17 ES ES97420236T patent/ES2144302T3/en not_active Expired - Lifetime
- 1997-12-17 EP EP97420236A patent/EP0849384B1/en not_active Expired - Lifetime
- 1997-12-17 DE DE69701616T patent/DE69701616T2/en not_active Expired - Lifetime
- 1997-12-18 JP JP34956997A patent/JP3429172B2/en not_active Expired - Fee Related
- 1997-12-18 CN CN97108725A patent/CN1061109C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0849384A1 (en) | 1998-06-24 |
FR2757544A1 (en) | 1998-06-26 |
FR2757544B1 (en) | 1999-03-05 |
JPH10237737A (en) | 1998-09-08 |
DE69701616D1 (en) | 2000-05-11 |
DE69701616T2 (en) | 2000-07-27 |
CN1185496A (en) | 1998-06-24 |
US5927347A (en) | 1999-07-27 |
ES2144302T3 (en) | 2000-06-01 |
CN1061109C (en) | 2001-01-24 |
JP3429172B2 (en) | 2003-07-22 |
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