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EP1493857B1 - Jacquard type shedding mechanism, weaving machine with such a mechanism and methods for mounting and unmounting such mechanisms - Google Patents

Jacquard type shedding mechanism, weaving machine with such a mechanism and methods for mounting and unmounting such mechanisms Download PDF

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Publication number
EP1493857B1
EP1493857B1 EP04356115A EP04356115A EP1493857B1 EP 1493857 B1 EP1493857 B1 EP 1493857B1 EP 04356115 A EP04356115 A EP 04356115A EP 04356115 A EP04356115 A EP 04356115A EP 1493857 B1 EP1493857 B1 EP 1493857B1
Authority
EP
European Patent Office
Prior art keywords
pulley
cover
actuators
pulleys
retaining means
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
Application number
EP04356115A
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German (de)
French (fr)
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EP1493857A1 (en
Inventor
Claude Dagois
Patrick Iltis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP1493857A1 publication Critical patent/EP1493857A1/en
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Publication of EP1493857B1 publication Critical patent/EP1493857B1/en
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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
    • D03C3/20—Electrically-operated jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D03C3/205—Independently actuated lifting cords

Definitions

  • the invention relates to a Jacquard type weave mechanism and to a loom equipped with such a mechanism.
  • the invention also relates to methods of assembling and dismantling such a mechanism.
  • the invention more particularly intends to meet by proposing a weave mechanism in which the mounting of the various winding pulleys can be carried out in a convenient and fast manner.
  • the invention relates to a Jacquard type armor mechanism for forming the crowd on a loom, this mechanism comprising several electric rotary actuators adapted to each rotate a winding pulley of a funicular element for controlling the position of at least one rail, while a cover is provided to isolate outside and / or protect a group of pulleys mounted on neighboring actuators.
  • This mechanism is characterized in that this cover is provided with means for retaining at least one pulley in a position allowing its mounting on the corresponding actuator or its disassembly relative thereto.
  • the establishment of the cover facing the actuators, in particular on a housing in which actuators are mounted allows simultaneous implementation of the pulleys or it carries.
  • the invention also relates to a loom equipped with a weave mechanism as previously described.
  • a loom is more economical, easy to install and maintain than those of the state of the art.
  • the establishment of the cover relative to the actuators allows both to secure the pulleys and actuators and release these pulleys to allow their rotation without friction on the cover.
  • the securing of the pulley and the corresponding shaft advantageously takes place by snapping.
  • the loom M represented at figure 1 comprises a mechanism formed by the mutual assembly of a multitude of housings 1 each of which contains sixteen electric rotary actuators 2 whose output shaft 3 can carry a pulley 4 for winding an arch 5 connected to a rail 6 intended to to order a warp thread 7 of the trade M and associated with a return spring 8 in the low position.
  • the different housings are assembled in rows perpendicular to the plane of the figure 1 and in columns parallel to this plane. They form two panels A and B arranged above the weaving area. Alternatively, a single panel formed of housings 1 may be provided. Alternatively also the panels A and B may be generally vertical and parallel to each other.
  • each housing 1 contains sixteen actuators 2 whose respective output shafts 3 are parallel and protrude from the front face 11 of the housing 1.
  • Each pulley 4 defines a volume 41 for receiving and wedging elastic tabs 31 provided at the end of each shaft 3, which allows an elastic snap of a pulley 4 on a shaft 3 (see FIG. figure 6 ).
  • a cover 20 is provided to be mounted on the front face 11 of the housing 1 together with a bar 21 for guiding the arches 5.
  • the cover 20 is configured to hold in position the sixteen pulleys 4 intended to be mounted on the actuators 2 of the housing 1.
  • the cover 20 forms several zones 22 in which the pulleys 4 may be snapped.
  • Each zone 22 is bordered by an elastically deformable tab 23a and by a rigid abutment 23b each provided with a bead 24 oriented towards the center of the zone 22.
  • Each pulley 4 is provided, at a collar 42 of larger diameter, with two recesses 43 of shapes corresponding to those of the beads 24.
  • zones 25 forming recessed recesses of slightly greater diameter than those of the collars 42 are provided, which allows the pulleys 4 to be partially engaged in these recesses without being in contact with the cover 20.
  • the lid 20 is also provided with stiffening ribs 26 which define individual compartments adapted to each receive a pulley, these compartments communicating with each other to allow the passage of the arches 5.
  • the pulleys 4 are mounted on the cover 20 by moving each pulley towards a zone 25, as represented by the arrow F 2 at the figure 3 , which makes it possible to reach the position represented in the upper right part of this figure. It is then sufficient to exert a vertical force directed downwards on the pulley 4, as represented by the arrow F 4 , to reach the position of the pulley represented in the lower right corner of the figure 3 where the tab 23a has been deformed elastically to allow insertion between it and the abutment 23b of the flange 42. The beads 24 then engage in the recesses 43, which allows immobilization of each pulley 4 relative to the cover 20 in a vertical direction.
  • the lug 23 a is integral with a tongue 28 defined between two slots 29 a and 29 b, which allows a deformation of the elements 23 a and 28 in the direction of arrow F 6 to the figure 4 , thus allowing the introduction of the pulley 4 in the zone 22.
  • the tab 23 a and tab 28 working in flexion during the opening movement of the pulleys 4 in the zones 22 and during the extraction movement.
  • the two elements 23 a and 23 b may be deformable relative to the rest of the cover 20.
  • the zone 22 is also bordered by a tooth 22b whose shape corresponds approximately to that of a cutout 45 formed in the flange 42.
  • the cooperation of the elements 22b and 45 makes it possible to control the angular orientation of the pulleys 4 around their respective central axes X 4 -X ' 4 after mounting on the cover 20.
  • the pulleys 4 mounted on the cover 20 may all be substantially in the same angular position around their respective central axes X 4 -X'4.
  • the cover 20 There are provided on the cover 20 as many retention zones 22 as there are actuators 2 in the housing 1. The zones are distributed according to the distribution of the actuators in the housing.
  • the spatial organization of the pulleys 4 previously mounted on the cover 20 is in exact correspondence with the spatial organization of the actuators 2 in the housing.
  • the assembly formed of the elements 20 and 21 is then plated on the face 11 of the housing 1 as in the direction of the arrow F 10 at the Figure 2A , that is to say in a direction generally parallel to the central axes X 3 -X ' 3 of the shafts 3.
  • the direction of translation of the cover 20 relative to the housing 1 is also parallel to the axes X 4 -X' 4 of pulleys 4.
  • the establishment of the cover 20 and the bar 21 on the housing it allows, particularly easily, the simultaneous engagement of the pulleys 4 on the different actuators 2 and their simultaneous release relative to the cover 20.
  • the cover 20 is animated with a vertical upward movement represented by the arrow F '11 to the Figure 2C , which allows to reach again the configuration of the Figure 2B , the different pulleys 4 being again engaged in the zones 22 by this movement.
  • the pulleys 4 are then subjected to a tensile force F 12 transmitted by the arches 5 and resulting from the action of the return springs 8, which contributes to their angular orientation, each around its axis X 4 -X ' 4 .
  • the pulleys are then immobilized in rotation by the cooperation of the elements 24 and 43 which engage.
  • the effort F 12 thus makes it possible to obtain a leveling of the angular position of the pulleys 4 at the beginning of the dismantling, all the pulleys then having the same angular position.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Toys (AREA)

Description

L'invention a trait à une mécanique d'armure du type Jacquard ainsi qu'à un métier à tisser équipé d'une telle mécanique. L'invention a également trait à des procédés d'assemblage et de démontage d'une telle mécanique.The invention relates to a Jacquard type weave mechanism and to a loom equipped with such a mechanism. The invention also relates to methods of assembling and dismantling such a mechanism.

Il est connu, par exemple de FR-A-2 772 792 , d'utiliser un moteur rotatif tel qu'un moteur pas à pas ou un servomoteur pour commander linéairement une cordelette à laquelle est suspendue une lisse d'un métier à tisser. Selon cet art antérieur, différents actionneurs peuvent être disposés dans un boîtier, les poulies entraînées par chaque actionneur étant protégées par un couvercle permettant de les isoler, notamment contre la bourre de l'atmosphère ambiante.It is known, for example from FR-A-2,772,792 , to use a rotary motor such as a stepper motor or a servomotor to linearly control a cord to which is suspended a rail of a loom. According to this prior art, various actuators may be arranged in a housing, the pulleys driven by each actuator being protected by a cover for isolating them, in particular against the wad of the ambient atmosphere.

Il est connu que de tels actionneurs peuvent être prévus en très grand nombre dans un métier à tisser de type Jacquard, auquel cas des structures en panneau peuvent être utilisées, comme décrit dans FR-A-2 794 140 .It is known that such actuators can be provided in large numbers in a Jacquard loom, in which case panel structures can be used, as described in US Pat. FR-A-2,794,140 .

Lorsque le nombre d'actionneurs électriques est important, par exemple de l'ordre de 10 000, un nombre également important de poulies doit être monté sur ces actionneurs pour permettre l'enroulement des cordelettes correspondantes. Une telle opération est longue et fastidieuse et requiert une main d'oeuvre qualifiée, afin de respecter l'ordre de montage des poulies et de ne pas endommager les poulies ou les extrémités des arbres de sortie des actionneurs sur lesquels elles doivent être montées.When the number of electric actuators is large, for example of the order of 10,000, a large number of pulleys must be mounted on these actuators to allow the winding of the corresponding cords. Such an operation is long and tedious and requires qualified manpower, to respect the order of assembly of the pulleys and not to damage the pulleys or the ends of the output shafts of the actuators on which they must be mounted.

C'est à ces limitations qu'entend plus particulièrement répondre l'invention en proposant une mécanique d'armure dans laquelle le montage des différentes poulies d'enroulement peut être effectué de façon commode et rapide.It is these limitations that the invention more particularly intends to meet by proposing a weave mechanism in which the mounting of the various winding pulleys can be carried out in a convenient and fast manner.

Dans cet esprit, l'invention concerne une mécanique d'armure du type Jacquard pour la formation de la foule sur un métier à tisser, cette mécanique comprenant plusieurs actionneurs rotatifs électriques aptes à entraîner chacun en rotation une poulie d'enroulement d'un élément funiculaire de commande de la position d'au moins une lisse, alors qu'un couvercle est prévu pour isoler de l'extérieur et/ou protéger un groupe de poulies monté sur des actionneurs voisins. Cette mécanique est caractérisée en ce que ce couvercle est pourvu de moyens de retenue d'au moins une poulie dans une position permettant son montage sur l'actionneur correspondant ou son démontage par rapport à celui-ci.In this spirit, the invention relates to a Jacquard type armor mechanism for forming the crowd on a loom, this mechanism comprising several electric rotary actuators adapted to each rotate a winding pulley of a funicular element for controlling the position of at least one rail, while a cover is provided to isolate outside and / or protect a group of pulleys mounted on neighboring actuators. This mechanism is characterized in that this cover is provided with means for retaining at least one pulley in a position allowing its mounting on the corresponding actuator or its disassembly relative thereto.

Grâce à l'invention, la mise en place du couvercle en regard des actionneurs, notamment sur un boîtier dans lequel sont montés des actionneurs, permet une mise en place simultanée de la ou des poulies qu'il porte.Thanks to the invention, the establishment of the cover facing the actuators, in particular on a housing in which actuators are mounted, allows simultaneous implementation of the pulleys or it carries.

Selon des aspects avantageux, une mécanique d'armure peut incorporer une ou plusieurs des caractéristiques suivantes :

  • Les moyens de retenue sont aptes à retenir plusieurs poulies en position de montage/démontage et sont compatibles avec un montage/démontage simultané de ces poulies sur les actionneurs correspondants. En d'autres termes, les moyens de retenue permettent de monter en même temps plusieurs poulies, d'où un gain de temps encore plus significatif.
  • Les moyens de retenue sont aptes à imposer l'orientation angulaire de la ou de chaque poulie, ce qui permet d'envisager un réglage par défaut de la position de cette poulie.
  • Les moyens de retenue comprennent au moins une patte élastiquement déformable et définissant avec un organe correspondant une zone de réception d'une partie d'une poulie. Dans ce cas, cette patte et cet organe sont avantageusement pourvus de reliefs aptes à coopérer avec des reliefs de formes correspondantes prévus sur la poulie, la coopération de ces reliefs induisant un accrochage élastique de la poulie entre la patte et l'organe précités. En outre, cette patte et cet organe peuvent définir, avec un voile de fond du couvercle, une zone de blocage d'une partie de la poulie, une telle zone pouvant être utilisée pour accrocher fermement une poulie sur le couvercle en vue de la séparation de cette poulie et de l'actionneur sur lequel elle a été préalablement montée.
  • Le capot porte, au voisinage des moyens de retenue précités, au moins un relief apte à coopérer avec un relief de forme correspondante prévu sur la poulie, la coopération de ces reliefs induisant un contrôle de l'orientation angulaire de la poulie autour de son axe central.
  • Le couvercle est pourvu, au voisinage des moyens de retenue précités, d'un logement de réception sans contact de la poulie, cette poulie pouvant être déplacée par rapport au couvercle entre une première position en prise avec les moyens de retenue et une seconde position dégagée des moyens de retenue et dans laquelle la poulie est en place dans ce logement, et réciproquement, ce déplacement ayant lieu grâce à une déformation élastique localisée des moyens de retenue. On peut prévoir que le couvercle est mobile par rapport à un boîtier dans lequel sont montés les actionneurs, en translation selon une direction perpendiculaire aux axes de rotation des arbres de sorties de ces actionneurs, entre deux positions dans lesquelles les poulies montées sur les actionneurs sont soit dans la première position soit dans la seconde position précitées.
In advantageous aspects, a weave mechanism may incorporate one or more of the following features:
  • The retaining means are able to hold a plurality of pulleys in the assembly / disassembly position and are compatible with simultaneous assembly / disassembly of these pulleys on the corresponding actuators. In other words, the retaining means make it possible to assemble several pulleys at the same time, thereby saving even more significant time.
  • The retaining means are able to impose the angular orientation of the or each pulley, which allows to consider a default setting of the position of this pulley.
  • The retaining means comprise at least one elastically deformable tab and defining with a corresponding member a receiving zone of a portion of a pulley. In this case, this tab and this member are advantageously provided with reliefs capable of cooperating with reliefs of corresponding shapes provided on the pulley, the cooperation of these reliefs inducing an elastic attachment of the pulley between the leg and the aforementioned member. In addition, this tab and this member can define, with a bottom cover cover, a blocking area of a portion of the pulley, such a zone that can be used to firmly attach a pulley on the cover for the purpose of separation of this pulley and the actuator on which it was previously mounted.
  • The hood carries, in the vicinity of the aforementioned retaining means, at least one relief adapted to cooperate with a relief of corresponding shape provided on the pulley, the cooperation of these reliefs inducing a control of the angular orientation of the pulley about its axis central.
  • The cover is provided, in the vicinity of the aforesaid retaining means, with a non-contact receiving housing of the pulley, this pulley being movable relative to the cover between a first position in engagement with the retaining means and a second released position retaining means and in which the pulley is in place in this housing, and reciprocally, this displacement taking place due to a localized elastic deformation of the retaining means. It can be provided that the cover is movable relative to a housing in which the actuators are mounted, in translation in a direction perpendicular to the axes of rotation of the output shafts of these actuators, between two positions in which the pulleys mounted on the actuators are either in the first position or in the second position mentioned above.

L'invention concerne également un métier à tisser équipé d'une mécanique d'armure telle que précédemment décrite. Un tel métier à tisser est plus économique, facile à installer et à entretenir que ceux de l'état de la technique.The invention also relates to a loom equipped with a weave mechanism as previously described. Such a loom is more economical, easy to install and maintain than those of the state of the art.

L'invention concerne également un procédé d'assemblage d'une mécanique d'armure telle que précédemment décrite et, plus spécifiquement, un procédé qui comprend des étapes consistant à :

  • monter au moins une poulie sur un couvercle d'isolation et/ou de protection des actionneurs rotatifs électriques de la mécanique ;
  • rapprocher le couvercle et les actionneurs par un mouvement de translation selon une direction globalement parallèle aux axes de rotation des arbres de sortie de ces actionneurs ;
  • solidariser la poulie à l'arbre de sortie à l'actionneur correspondant au terme du mouvement de rapprochement précité et
  • déplacer le couvercle selon une direction globalement perpendiculaire à celle du mouvement de rapprochement, tout en libérant la poulie par rapport au couvercle.
The invention also relates to a method of assembling a weave mechanism as previously described and, more specifically, to a method which comprises the steps of:
  • mounting at least one pulley on an insulation cover and / or protection of the electric rotary actuators of the mechanics;
  • bringing the cover and the actuators by a translation movement in a direction generally parallel to the axes of rotation of the output shafts of these actuators;
  • fasten the pulley to the output shaft to the actuator corresponding to the end of the aforementioned movement of approximation and
  • moving the cover in a direction generally perpendicular to that of the approaching movement, while releasing the pulley relative to the cover.

Grâce au procédé de l'invention, la mise en place du couvercle par rapport aux actionneurs permet à la fois de solidariser les poulies et les actionneurs puis de libérer ces poulies afin de permettre leur rotation sans frottement sur le couvercle.With the method of the invention, the establishment of the cover relative to the actuators allows both to secure the pulleys and actuators and release these pulleys to allow their rotation without friction on the cover.

La solidarisation de la poulie et de l'arbre correspondant a avantageusement lieu par encliquetage.The securing of the pulley and the corresponding shaft advantageously takes place by snapping.

L'invention concerne enfin un procédé de démontage d'une mécanique d'armure telle que précédemment décrite et assemblée, dans lequel :

  • on oriente angulairement au moins une poulie en lui transmettant un effort de traction exercé par l'élément funiculaire associé,
  • on déplace en translation le couvercle selon une direction globalement perpendiculaire à l'axe de rotation de la poulie, jusqu'à engager cette poulie dans une zone de retenue ménagée sur le couvercle et
  • on déplace en translation le couvercle équipé de la poulie selon une direction globalement parallèle à l'axe précité et dans un sens d'éloignement de l'actionneur.
The invention finally relates to a method of disassembly of a weave mechanism as previously described and assembled, in which:
  • at least one pulley is angularly oriented by transmitting to it a tensile force exerted by the associated funicular element,
  • translating the cover in a direction generally perpendicular to the axis of rotation of the pulley, to engage the pulley in a retaining zone on the cover and
  • translating the lid equipped with the pulley in a direction generally parallel to the aforementioned axis and in a direction away from the actuator.

Au terme de ce démontage, la ou chaque partie est maintenue angulairement en position en vue d'un montage ultérieur.After this disassembly, the or each part is held angularly in position for subsequent assembly.

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'une mécanique d'armure et d'un 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 coupe verticale de principe d'un métier à tisser conforme à l'invention incorporant une mécanique d'armure conforme à l'invention ;
  • les figures 2A, 2B et 2C sont des vues en perspective d'un ensemble d'actionneurs appartenant à la mécanique d'armure de la figure 1 et d'un couvercle associé à différents stades de montage ;
  • la figure 3 est une vue en perspective, dans le sens de la flèche F3 de la figure 2A, d'une partie du couvercle et de trois poulies dans différentes positions correspondant au montage des poulies sur le couvercle ;
  • la figure 4 est une vue de face du coin inférieur droit du couvercle représenté à la figure 3 et d'une partie d'une barrette guide-fil ;
  • la figure 5 est une section selon la ligne V-V à la figure 4 et
  • la figure 6 est une représentation schématique de principe d'un actionneur et d'une poulie en cours de montage, le couvercle étant représenté en trait mixte pour la clarté du dessin.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a weave mechanism and a loom according to its principle, given purely by way of example and with reference to the appended drawings in which:
  • the figure 1 is a vertical section of principle of a loom according to the invention incorporating a mechanical armor according to the invention;
  • the Figures 2A , 2B and 2C are perspective views of a set of actuators belonging to the armor mechanics of the figure 1 and a cover associated with different stages of assembly;
  • the figure 3 is a perspective view, in the direction of the arrow F 3 of the Figure 2A , a portion of the cover and three pulleys in different positions corresponding to the mounting of the pulleys on the cover;
  • the figure 4 is a front view of the bottom right corner of the lid shown in the figure 3 and a portion of a wire guide bar;
  • the figure 5 is a section along line VV to the figure 4 and
  • the figure 6 is a schematic representation of a principle of an actuator and a pulley during assembly, the cover being shown in phantom for clarity of the drawing.

Le métier à tisser M représenté à la figure 1 comprend une mécanique formée par l'assemblage mutuel d'une multitude de boîtiers 1 dont chacun renferme seize actionneurs rotatifs électriques 2 dont l'arbre de sortie 3 peut porter une poulie 4 d'enroulement d'une arcade 5 reliée à une lisse 6 destinée à commander un fil de chaîne 7 du métier M et associée à un ressort 8 de rappel en position basse.The loom M represented at figure 1 comprises a mechanism formed by the mutual assembly of a multitude of housings 1 each of which contains sixteen electric rotary actuators 2 whose output shaft 3 can carry a pulley 4 for winding an arch 5 connected to a rail 6 intended to to order a warp thread 7 of the trade M and associated with a return spring 8 in the low position.

Les différents boîtiers sont assemblés en rangées perpendiculaires au plan de la figure 1 et en colonnes parallèles à ce plan. Ils forment deux panneaux A et B disposés au-dessus de la zone de tissage. En variante, un seul panneau formé de boîtiers 1 peut être prévu. En variante également, les panneaux A et B peuvent être globalement verticaux et parallèles entre eux.The different housings are assembled in rows perpendicular to the plane of the figure 1 and in columns parallel to this plane. They form two panels A and B arranged above the weaving area. Alternatively, a single panel formed of housings 1 may be provided. Alternatively also the panels A and B may be generally vertical and parallel to each other.

Ainsi qu'il ressort de la figure 2, chaque boîtier 1 renferme seize actionneurs 2 dont les arbres de sortie respectifs 3 sont parallèles et font saillie par rapport à la face avant 11 du boîtier 1.As is apparent from the figure 2 each housing 1 contains sixteen actuators 2 whose respective output shafts 3 are parallel and protrude from the front face 11 of the housing 1.

Chaque poulie 4 définit un volume 41 de réception et de coincement de pattes élastiques 31 prévues à l'extrémité de chaque arbre 3, ce qui permet un encliquetage élastique d'une poulie 4 sur un arbre 3 (voir figure 6).Each pulley 4 defines a volume 41 for receiving and wedging elastic tabs 31 provided at the end of each shaft 3, which allows an elastic snap of a pulley 4 on a shaft 3 (see FIG. figure 6 ).

Un couvercle 20 est prévu pour être monté sur la face avant 11 du boîtier 1 conjointement avec une barrette 21 de guidage des arcades 5.A cover 20 is provided to be mounted on the front face 11 of the housing 1 together with a bar 21 for guiding the arches 5.

Le couvercle 20 est configuré pour pouvoir retenir en position les seize poulies 4 destinées à être montées sur les actionneurs 2 du boîtier 1.The cover 20 is configured to hold in position the sixteen pulleys 4 intended to be mounted on the actuators 2 of the housing 1.

Comme il ressort plus particulièrement de la figure 3, le couvercle 20 forme plusieurs zones 22 dans lesquelles peuvent être encliquetées les poulies 4. Chaque zone 22 est bordée par une patte élastiquement déformable 23a et par une butée rigide 23b pourvues chacune d'un bourrelet 24 orienté vers le centre de la zone 22.As is clear from the figure 3 , the cover 20 forms several zones 22 in which the pulleys 4 may be snapped. Each zone 22 is bordered by an elastically deformable tab 23a and by a rigid abutment 23b each provided with a bead 24 oriented towards the center of the zone 22.

Chaque poulie 4 est pourvue, au niveau d'une collerette 42 de plus grand diamètre, de deux renfoncements 43 de formes correspondantes à celles des bourrelets 24.Each pulley 4 is provided, at a collar 42 of larger diameter, with two recesses 43 of shapes corresponding to those of the beads 24.

A proximité de chaque zone 22, et au-dessus de celle-ci dans la représentation de la figure 3, il est prévu des zones 25 formant des logements en creux de diamètre légèrement supérieur à celui des collerettes 42, ce qui permet que les poulies 4 puissent être partiellement engagées dans ces logements sans être en contact avec le couvercle 20.Near each zone 22, and above it in the representation of the figure 3 zones 25 forming recessed recesses of slightly greater diameter than those of the collars 42 are provided, which allows the pulleys 4 to be partially engaged in these recesses without being in contact with the cover 20.

Le couvercle 20 est également pourvu de nervures de rigidification 26 qui définissent des compartiments individuels aptes à recevoir chacun une poulie, ces compartiments communiquant entre eux pour permettre le passage des arcades 5.The lid 20 is also provided with stiffening ribs 26 which define individual compartments adapted to each receive a pulley, these compartments communicating with each other to allow the passage of the arches 5.

Le montage des poulies 4 sur le couvercle 20 a lieu en déplaçant chaque poulie vers une zone 25, comme représenté par la flèche F2 à la figure 3, ce qui permet d'atteindre la position représentée en partie supérieure droite de cette figure. Il suffit alors d'exercer un effort vertical dirigé vers le bas sur la poulie 4, comme représenté par la flèche F4, pour atteindre la position de la poulie représentée dans le coin inférieur droit de la figure 3 où la patte 23a a été déformée élastiquement pour permettre l'introduction entre elle et la butée 23b de la collerette 42. Les bourrelets 24 viennent alors en prise dans les renfoncements 43, ce qui permet une immobilisation de chaque poulie 4 par rapport au couvercle 20 selon une direction verticale.The pulleys 4 are mounted on the cover 20 by moving each pulley towards a zone 25, as represented by the arrow F 2 at the figure 3 , which makes it possible to reach the position represented in the upper right part of this figure. It is then sufficient to exert a vertical force directed downwards on the pulley 4, as represented by the arrow F 4 , to reach the position of the pulley represented in the lower right corner of the figure 3 where the tab 23a has been deformed elastically to allow insertion between it and the abutment 23b of the flange 42. The beads 24 then engage in the recesses 43, which allows immobilization of each pulley 4 relative to the cover 20 in a vertical direction.

On est alors dans la position de la figure 4 où une partie 44 de la collerette 42 située au voisinage de chaque renfoncement 43 est engagée dans une zone 27 définie entre un bourrelet 24 et le fond 22a de la zone 22.We are in the position of the figure 4 where a portion 44 of the flange 42 in the vicinity of each recess 43 is engaged in a zone 27 defined between a bead 24 and the bottom 22 a of zone 22.

Ainsi, comme il ressort plus particulièrement de la figure 5, la poulie 4 est fermement maintenue en position par rapport au couvercle 20 dans un sens d'arrachement selon la flèche F5 sur cette figure.Thus, as is clear from the figure 5 , the pulley 4 is firmly held in position relative to the cover 20 in a tearing direction along the arrow F 5 in this figure.

Il est à noter que la patte 23a est monobloc avec une languette 28 définie entre deux lumières 29a et 29b, ce qui permet une déformation des éléments 23a et 28 selon la direction de la flèche F6 à la figure 4, permettant ainsi la mise en place de la poulie 4 dans la zone 22.It should be noted that the lug 23 a is integral with a tongue 28 defined between two slots 29 a and 29 b, which allows a deformation of the elements 23 a and 28 in the direction of arrow F 6 to the figure 4 , thus allowing the introduction of the pulley 4 in the zone 22.

La patte 23a et la languette 28 travaillent en flexion lors du mouvement d'introduction des poulies 4 dans les zones 22 et lors des mouvements d'extraction.The tab 23 a and tab 28 working in flexion during the opening movement of the pulleys 4 in the zones 22 and during the extraction movement.

Selon une variante non représentée de l'invention, les deux éléments 23a et 23b pourraient être déformables par rapport au reste du couvercle 20.According to a not represented variant of the invention, the two elements 23 a and 23 b may be deformable relative to the rest of the cover 20.

La zone 22 est également bordée par une dent 22b dont la forme correspond approximativement à celle d'une découpe 45 formée dans la collerette 42. La coopération des éléments 22b et 45 permet de contrôler l'orientation angulaire des poulies 4 autour de leurs axes centraux respectifs X4-X'4 après montage sur le couvercle 20.The zone 22 is also bordered by a tooth 22b whose shape corresponds approximately to that of a cutout 45 formed in the flange 42. The cooperation of the elements 22b and 45 makes it possible to control the angular orientation of the pulleys 4 around their respective central axes X 4 -X ' 4 after mounting on the cover 20.

Ainsi, les poulies 4 montées sur le couvercle 20 peuvent être toutes sensiblement dans la même position angulaire autour de leurs axes centraux respectifs X4-X'4.Thus, the pulleys 4 mounted on the cover 20 may all be substantially in the same angular position around their respective central axes X 4 -X'4.

Il est prévu sur le couvercle 20 autant de zones de retenue 22 qu'il y a d'actionneurs 2 dans le boîtier 1. Les zones sont réparties en fonction de la répartition des actionneurs dans le boîtier.There are provided on the cover 20 as many retention zones 22 as there are actuators 2 in the housing 1. The zones are distributed according to the distribution of the actuators in the housing.

Lorsque les poulies 4 sont montées sur le couvercle 20, les différentes arcades sont passées dans les orifices correspondants 21a de la barrette 21 puis la barrette 21 et le couvercle 20 sont solidarisés par tout moyen approprié, par exemple par introduction de pions prévus en partie basse du couvercle 20 dans des logements correspondants de la barrette 21.When the pulleys 4 are mounted on the cover 20, various arches are passed through the corresponding holes 21a of the bar 21 and the bar 21 and the cover 20 are secured by any suitable means, for example by introduction of pins provided in part bottom of the cover 20 in corresponding housings of the bar 21.

L'organisation spatiale des poulies 4 préalablement montées sur le couvercle 20 est en correspondance exacte avec l'organisation spatiale des actionneurs 2 dans le boîtier.The spatial organization of the pulleys 4 previously mounted on the cover 20 is in exact correspondence with the spatial organization of the actuators 2 in the housing.

L'ensemble formé des éléments 20 et 21 est alors plaqué sur la face 11 du boîtier 1 comme dans le sens de la flèche F10 à la figure 2A, c'est-à-dire selon une direction globalement parallèle aux axes centraux X3-X'3 des arbres 3. La direction de translation du couvercle 20 par rapport au boîtier 1 est également parallèle aux axes X4-X'4 des poulies 4.The assembly formed of the elements 20 and 21 is then plated on the face 11 of the housing 1 as in the direction of the arrow F 10 at the Figure 2A , that is to say in a direction generally parallel to the central axes X 3 -X ' 3 of the shafts 3. The direction of translation of the cover 20 relative to the housing 1 is also parallel to the axes X 4 -X' 4 of pulleys 4.

Au terme de ce mouvement de translation F10, les poulies 4 sont automatiquement encliquetées sur les extrémités des arbres 3, par la coopération des dents 31 et des volumes 41.At the end of this translation movement F 10 , the pulleys 4 are automatically snapped onto the ends of the shafts 3, by the cooperation of the teeth 31 and the volumes 41.

On atteint alors la position de la figure 2B dans laquelle des vis 12 faisant saillie à partir de la face 11 sont engagées respectivement dans une lumière oblongue 20b du couvercle 20 et dans des encoches 21b de la barrette 21.We then reach the position of the Figure 2B in which screws 12 protruding from the face 11 are respectively engaged in an oblong slot 20b of the cover 20 and in notches 21b of the bar 21.

Il est alors possible de faire subir au couvercle 20 et à la barrette 21 un mouvement vertical dirigé vers le bas dans le sens de la flèche F11 à la figure 2B, ce qui a pour effet de faire coulisser les différentes poulies 4 à partir des zones 22 dans lesquelles elles étaient préalablement retenues vers les zones 25 dans lesquelles elles peuvent tourner, en étant entraînées par les arbres 3, sans contact avec le couvercle 20. On atteint alors la position de la figure 2C.It is then possible to subject the cover 20 and the bar 21 to a vertical movement directed downwards in the direction of the arrow F 11 to the Figure 2B , which has the effect of sliding the various pulleys 4 from the zones 22 in which they were previously retained towards the zones 25 in which they can rotate, being driven by the shafts 3, without contact with the cover 20. The position of the Figure 2C .

Ainsi, la mise en place du couvercle 20 et de la barrette 21 sur le boîtier il permet, de façon particulièrement aisée, l'accrochage simultané des poulies 4 sur les différents actionneurs 2 et leur libération simultanée par rapport au couvercle 20.Thus, the establishment of the cover 20 and the bar 21 on the housing it allows, particularly easily, the simultaneous engagement of the pulleys 4 on the different actuators 2 and their simultaneous release relative to the cover 20.

Lorsqu'il convient de retirer les différentes poulies 4 des actionneurs d'un boîtier 1, par exemple en vue de l'échange standard de ce boîtier, le couvercle 20 est animé d'un mouvement vertical dirigé vers le haut représenté par la flèche F'11 à la figure 2C, ce qui permet d'atteindre à nouveau la configuration de la figure 2B, les différentes poulies 4 étant à nouveau engagées dans les zones 22 par ce mouvement. Les poulies 4 sont alors soumises à un effort de traction F12 transmis par les arcades 5 et résultant de l'action des ressorts de rappel 8, ce qui concourt à leur orientation angulaire, chacune autour de son axe X4-X'4. Les poulies sont alors immobilisées en rotation par la coopération des éléments 24 et 43 qui viennent en prise. L'effort F12 permet donc d'obtenir un nivelage de la position angulaire des poulies 4 au début du démontage, toutes les poulies ayant alors la même position angulaire.When it is necessary to remove the various pulleys 4 from the actuators of a housing 1, for example in view of the standard exchange of this housing, the cover 20 is animated with a vertical upward movement represented by the arrow F '11 to the Figure 2C , which allows to reach again the configuration of the Figure 2B , the different pulleys 4 being again engaged in the zones 22 by this movement. The pulleys 4 are then subjected to a tensile force F 12 transmitted by the arches 5 and resulting from the action of the return springs 8, which contributes to their angular orientation, each around its axis X 4 -X ' 4 . The pulleys are then immobilized in rotation by the cooperation of the elements 24 and 43 which engage. The effort F 12 thus makes it possible to obtain a leveling of the angular position of the pulleys 4 at the beginning of the dismantling, all the pulleys then having the same angular position.

Il est alors possible de séparer l'ensemble formé du couvercle 20 et de la barrette 21 par rapport au boîtier 1 en exerçant un effort de traction dans le sens de la flèche F'10 opposé à celui de la flèche F10. Comme les parties 44 sont prisonnières derrière les bourrelet 24 des pattes 23a et 23b, les poulies 4 sont désolidarisées des arbres 3, de façon simultanée et l'on atteint à nouveau la configuration de la figure 2A.It is then possible to separate the assembly formed by the cover 20 and the bar 21 relative to the housing 1 by exerting a tensile force in the direction of the arrow F '10 opposite to that of arrow F 10. Since portions 44 are trapped behind the bead 24 of the tabs 23 a and 23 b, pulleys 4 are dissociated tree 3, and simultaneously is reached again the configuration of the Figure 2A .

Il est également possible de démonter le capot à partir de la configuration de la figure 2C en laissant en place les poulies 4 et la barrette 21. Pour ce faire, il suffit de desserrer la vis supérieure 12 et de tirer sur le couvercle 20 dans le sens de la flèche F'13 à la figure 2C.It is also possible to disassemble the hood from the configuration of the Figure 2C leaving in place the pulleys 4 and the bar 21. To do this, it simply loosen the upper screw 12 and pull on the cover 20 in the direction of the arrow F '13 to the Figure 2C .

Ceci permet d'intervenir individuellement sur l'un ou l'autre des actionneurs pour le changement de la poulie et/ou de l'arcade associées, voire de la totalité de l'actionneur.This allows to intervene individually on one or other of the actuators for the change of the pulley and / or the associated arch, or even the entire actuator.

Claims (13)

  1. Weave system of the Jacquard type for forming the shed on a weaving loom, said system comprising a plurality of electric rotary actuators (2) adapted each to drive in rotation a pulley (4) for winding a cord element (5) controlling the position of at least one heddle (6), while a cover (20) is provided to isolate from the outside and/or protect a group of pulleys mounted on adjacent actuators, characterized in that said cover (20) is provided with means (22-24) for retaining at least one pulley in a position allowing its assembly (F10) on the corresponding actuator or its dismantling (F'10) with respect to said actuator.
  2. System according to Claim 1, characterized in that said retaining means (22-24) are adapted to retain a plurality of pulleys (4) in position of assembly/dismantling and are compatible with a simultaneous assembly/dismantling (F10) of said pulleys on the corresponding actuators (2).
  3. System according to one of the preceding Claims, characterized in that said retaining means (22-24) are adapted to impose the angular orientation of the or each pulley (4).
  4. System according to one of the preceding Claims, characterized in that said retaining means comprise at least one elastically deformable (F6) tab (23a) defining with a corresponding member (23b) a zone (22) for receiving a part (42) of a pulley (4).
  5. System according to Claim 4, characterized in that said tab (23a) and said member (23b) are provided with elements in relief (24) adapted to cooperate with elements in relief (43) of corresponding shapes provided on said pulley (4), the cooperation of said elements in relief inducing an elastic catching of said pulley between said tab and member.
  6. System according to one of Claims 4 or 5, characterized in that said tab (23a) and said member (23b) define, with a bottom web (22a) of said cover (20), a zone (27) for blocking a part (42) of said pulley.
  7. System according to one of the preceding Claims, characterized in that said cover bears (20), in the vicinity of said retaining means (22-24), at least one element in relief (22b) adapted to cooperate with an element in relief (45) of corresponding shape provided on said pulley (4), the cooperation of said elements in relief (22b, 45) inducing a control of the angular orientation of said pulley about its central axis (X4).
  8. System according to one of the preceding Claims, characterized in that said cover (20) is provided, in the vicinity of said retaining means (22-24), with a housing (25) for receiving said pulley (4) without contact, said pulley being able to be displaced with respect to said cover between a first position in mesh with said retaining means and a second position, disengaged from said retaining means and in which it is in place in said housing, and vice versa, thanks to a localised elastic deformation (F6) of said retaining means.
  9. System according to Claim 8, characterized in that said cover is mobile, with respect to a casing (1) in which said actuators (2) are mounted, in translation (F11, F'11) in a direction perpendicular to the axes of rotation (X3-X'3) of the output shafts (3) of said actuators, between two positions in which the pulleys (4) mounted on said actuators are either in said first position or in said second position.
  10. Weaving loom (M) equipped with a weave system (1-45) according to one of the preceding Claims.
  11. Method for assembly of a weave system of Jacquard type for forming the shed on a weaving loom, said system comprising a plurality of electric rotary actuators (2) adapted each to drive in rotation a pulley (4) for winding a cord element (5) controlling the position of at least one heddle (6), characterized in that it comprises steps consisting in:
    - mounting (F2, F4) at least one pulley (4) on a cover (20) for isolating and/or protecting said actuators;
    - bringing said cover and said actuators (2) closer to one another by a movement of translation (F10) in a direction substantially parallel to the axes of rotation (X3-X'3) of the output shafts (3) of said actuators;
    - connecting (F1) said pulley to the output shaft of the corresponding actuator at the end of the movement of approach, and
    - displacing (F11) said cover in a direction substantially perpendicular to that of the movement of approach, while releasing said pulley with respect to said cover.
  12. Method according to Claim 11, characterized in that connection (F1) of said pulley (4) and of said shaft (3) is effected by clipping.
  13. Method for totally or partially dismantling a weave system of Jacquard type for forming the shed on a weaving loom, said system comprising a plurality of electric rotary actuators (8) adapted each to drive in rotation a pulley (4) for winding a cord element (5) controlling the position of at least one heddle (6), characterized in that it comprises steps consisting in:
    - angularly orienting at least one pulley (4) by a traction effort (F12) exerted by the cord element (5) associated therewith,
    - displacing a cover (20) for isolating and/or protecting said actuators (3) in translation (F11) in a direction substantially perpendicular to the axis of rotation (X4-X'4) of said pulley, until said pulley (4) is engaged in a retaining zone (22) made on said cover, and
    - displacing in translation (F'10 said cover (20) equipped with said pulley in a direction substantially parallel to said axis of rotation and in a sense of moving away with respect to said actuator.
EP04356115A 2003-06-30 2004-06-29 Jacquard type shedding mechanism, weaving machine with such a mechanism and methods for mounting and unmounting such mechanisms Expired - Lifetime EP1493857B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307895 2003-06-30
FR0307895A FR2856705B1 (en) 2003-06-30 2003-06-30 ARMOR MECHANICS OF THE JACQUART TYPE, WEAVING EQUIPPED WITH SUCH A MECHANICAL AND METHODS OF ASSEMBLING AND DISASSEMBLING SUCH A MECHANICAL

Publications (2)

Publication Number Publication Date
EP1493857A1 EP1493857A1 (en) 2005-01-05
EP1493857B1 true EP1493857B1 (en) 2012-06-06

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EP04356115A Expired - Lifetime EP1493857B1 (en) 2003-06-30 2004-06-29 Jacquard type shedding mechanism, weaving machine with such a mechanism and methods for mounting and unmounting such mechanisms

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US (1) US7040352B2 (en)
EP (1) EP1493857B1 (en)
JP (1) JP4377291B2 (en)
CN (1) CN1576418B (en)
FR (1) FR2856705B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1893796A1 (en) * 2005-05-12 2008-03-05 Picanol N.V., Naamloze Vennootschap Actuator for a shed-forming device for a weaving machine
FR2911882B1 (en) * 2007-01-31 2009-05-29 Staubli Faverges Sca DEVICE FOR FORMING THE MOB INCORPORATING ELECTRIC MOTOR BLOCKS AND A WEAVING MACHINE EQUIPPED WITH SUCH A DEVICE.
BRPI0721532A2 (en) * 2007-03-27 2014-02-18 Textilma Ag DEVICE FOR CONTROL OF THE TRANSVERSAL MOVEMENT OF THE AUTOMATIC TEAR WIRE
FR2990958B1 (en) * 2012-05-24 2014-06-13 Staubli Sa Ets CROWN FORMING DEVICE AND WOVEN WEAVING EQUIPPED WITH SUCH A DEVICE
TWM493278U (en) * 2014-10-21 2015-01-11 Deertex Inc Footwear assembly with breathable and wear-resistant woven vamp
FR3054245B1 (en) * 2016-07-22 2018-08-31 Staubli Faverges MOBILE TRAINING MACHINE AND WEAVING MACHINE COMPRISING SUCH A MACHINE.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2772792B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets ELECTRIC ACTUATOR POSITIONING BOX FOR CROWD FORMATION AND WEAVING
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
FR2794140B1 (en) * 1999-05-31 2001-07-13 Staubli Sa Ets JACQUARD WEAPON MECHANICS AND WEAVING MACHINE EQUIPPED WITH SUCH MECHANICS

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FR2856705A1 (en) 2004-12-31
US7040352B2 (en) 2006-05-09
EP1493857A1 (en) 2005-01-05
CN1576418B (en) 2011-04-13
CN1576418A (en) 2005-02-09
JP2005023510A (en) 2005-01-27
FR2856705B1 (en) 2005-08-05
US20040261882A1 (en) 2004-12-30
JP4377291B2 (en) 2009-12-02

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