EP0496686A1 - Drawing system for driving the heald frames of negative dobbies - Google Patents

Drawing system for driving the heald frames of negative dobbies Download PDF

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Publication number
EP0496686A1
EP0496686A1 EP92420026A EP92420026A EP0496686A1 EP 0496686 A1 EP0496686 A1 EP 0496686A1 EP 92420026 A EP92420026 A EP 92420026A EP 92420026 A EP92420026 A EP 92420026A EP 0496686 A1 EP0496686 A1 EP 0496686A1
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EP
European Patent Office
Prior art keywords
axis
slides
cables
registers
heald frames
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Granted
Application number
EP92420026A
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German (de)
French (fr)
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EP0496686B1 (en
Inventor
Jean-Paul Froment
André Fumex
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Staubli Faverges SCA
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Staubli Faverges SCA
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Publication of EP0496686A1 publication Critical patent/EP0496686A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/144—Features common to dobbies of different types linking to the heald frame

Definitions

  • the present invention relates to dobbies and other mechanical weaving of the negative type and it relates more particularly to the drawing device interposed between each of the operating members of said mechanical and the corresponding heald frame mounted on the combined weaving machine.
  • a negative type armor mechanism ensures positive control of the frames in only one direction of their alternating travel, so that it is necessary to provide elastic means which are tensioned during positive actuation so as to bring about the return of each frame as soon as the corresponding mechanical operating member ceases its action.
  • these elastic means consist of registers comprising a sheet of springs held between two staples, one of which is suitably secured to the fixed structure of the weaving machine, while the other is made integral either with the end of the control cable coupled to each heald frame, or of the oscillating return lever disposed on the path of said cable between the frame and the damper.
  • the invention essentially consists in engaging inside the guide slides the axis which supports each set of oscillating return levers and in associating to said axis actuation means arranged to effect its transverse movement in said slides and, subsequently, the momentary relaxation of the damper springs and the control cables for intervention at their level.
  • Fig. 1 is a side view of a drawing device established in accordance with the present invention.
  • Fig. 2 is a vertical section along the plane indicated in II-II in FIG. 1.
  • Fig. 3 illustrates in perspective the arrangement of one of the two flanges which provide the adjustable fixing of the axis which supports the oscillating levers.
  • Fig. 4 reproduced fig. 1 at the relaxed position of the registers.
  • Fig. 5 illustrates an alternative embodiment of the slide.
  • Fig. 6 shows the application of the invention to the case of armor mechanics which are mounted in superstructure, that is to say above the heald frames.
  • Fig. 7 shows a variant of FIG. 6.
  • reference 1 designates one of the heald frames mounted on a weaving machine.
  • Each frame 1 is made laterally integral with a control cable 2, one end of which is secured to one of the operating members of the armor mechanism, while the opposite end is returned to one of a series of oscillating levers 3 before being fixed to a register 4.
  • each register 4 comprises a sheet of vertical springs 5 which are hooked to an upper clip 6 fixed to the end of the cable 2 below the lever 3 corresponding, and to a lower clip 7 held in place by a rack 8 secured to a vertical structure 9 of the weaving machine.
  • the set of levers 3, equal in number to that of the heald frames 1 of the weaving machine envisaged, is mounted to oscillate on a horizontal axis 10 established in a circular section so that said levers 3, made integral with the cable 2 by means of a fastener such as 3a, can rotate freely on said axis.
  • the axis 10 is supported by the two vertical structures 9 of the weaving machine by means of two vertical flanges 11, fixed to the top of said structures in the manner illustrated in FIG. 2.
  • Each flange 11 is cut out from an elongated lumen 11 a whose longitudinal axis is oriented obliquely relative to the vertical axis of the frame 2, as shown in FIG. 3.
  • the lumen 11 a is established at a width such that it forms slides for the corresponding end of the axis 10 which passes through it.
  • the support axis 10 of the oscillating levers 3 is in the high position inside the slides 11 a , in the manner shown in FIG. 1.
  • the upper clip 6 is distant by a height H from the fixed lower clip 7, so that the springs 5 of the set of registers 4 are under tension and therefore ensure their function well : the lowering of the frames 1 under the effect of the positive control exerted by the cables 2 generates an overvoltage of the registers 4 which resiliently bring said frames to the high position as soon as the mechanical operating members cease their positive movement.
  • each flange 111 is hollowed out with a slide 111 a with a substantially triangular profile, the base of which has two indentations 111 b and 111 c which are profiled to selectively receive the corresponding end of the engaged axis 10 inside the aforementioned slide.
  • Fig. 6 illustrates the application of the invention to weaving machines in which the weave mechanics 13 is supported by a fixed super-structure 14.
  • the two cables 2 associated with each operating member 13a of the mechanics 13 for controlling of the corresponding heald frame 1, are returned to wind on two levers 103 connected to said frame 1 by connecting rods 15 and to the superstructure 14 by spring registers 4.
  • each lateral set of levers 103 is carried by the same horizontal axis 10.
  • the ends of the latter are engaged in lights or slides 109 a that it was assumed to be directly arranged in the vertical structure 109; at each end is associated a screw 12, the head of which bears against the edge of a perforation made in the above-mentioned structure 109.
  • the portion of the cable 2 between the corresponding lever 103 and the upper deflection pulley 16 is oriented vertically, like the axis of the damper 4.
  • Each slide 109 a is oriented substantially vertically so that the lowering of the axis 10 and of the levers 103 during the operation of the screws 12 causes the springs of the registers 4 and the cables 2 to relax simultaneously.
  • the axis of the end portion of each cable 2 defines an obtuse angle with the vertical axis of the corresponding register 4.
  • the simultaneous expansion of the registers 4 and the cables 2 forces the lights or slides 109 a to be oriented along the bisector of the aforementioned angle.
  • the invention is of course capable of being applied with advantage to the dobbies or other mechanical armor of the negative type in which the pulling device associated with each smooth frame comprises only a single cable arranged so as to ensure by itself the actuation of the two oscillating levers provided for the operation of the envisaged frame, of the kind described in French patent application No. 91 10212 filed on August 6, 1991 in the name of the present Applicant.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The axle (10) supporting the oscillating levers (3) forming a return for each cable (2) between the heald frame (1) and the reverse motion (4) is engaged in elongate slots (11a) associated with actuating screws (12), in such a way that, as a result of the transverse displacement of the abovementioned axle (10), the reverse motions can be momentarily relaxed when work is carried out in the region of the springs (5) or of the cables (2). <IMAGE>

Description

La présente invention a trait aux ratières et autres mécaniques d'armure du type négatif et elle concerne plus particulièrement le dispositif de tirage interposé entre chacun des organes de manoeuvre desdites mécaniques et le cadre de lisses correspondant monté sur la machine à tisser conjuguée.The present invention relates to dobbies and other mechanical weaving of the negative type and it relates more particularly to the drawing device interposed between each of the operating members of said mechanical and the corresponding heald frame mounted on the combined weaving machine.

On sait qu'une mécanique d'armure du type négatif n'assure la commande positive des cadres que dans un seul sens de leur course alternative, de telle sorte qu'il est nécessaire de prévoir des moyens élastiques qui sont mis sous tension lors de l'actionnement positif de façon à opérer le rappel de chaque cadre dès que l'organe de manoeuvre correspondant de la mécanique cesse son action.It is known that a negative type armor mechanism ensures positive control of the frames in only one direction of their alternating travel, so that it is necessary to provide elastic means which are tensioned during positive actuation so as to bring about the return of each frame as soon as the corresponding mechanical operating member ceases its action.

En pratique, ces moyens élastiques sont constitués par des registres comprenant une nappe de ressorts maintenus entre deux agrafes dont l'une est convenablement arrimée à la structure fixe de la machine à tisser, tandis que l'autre est rendue solidaire soit de l'extrémité du câble de commande attelé à chaque cadre de lisses, soit du levier oscillant de renvoi disposé sur le trajet dudit câble entre le cadre et le registre.In practice, these elastic means consist of registers comprising a sheet of springs held between two staples, one of which is suitably secured to the fixed structure of the weaving machine, while the other is made integral either with the end of the control cable coupled to each heald frame, or of the oscillating return lever disposed on the path of said cable between the frame and the damper.

Il convient ici d'observer que pour permettre le fonctionnement des machines à tisser à des vitesses très élevées, on a actuellement tendance à recourir à des registres de plus en plus puissants, ce qui a pour effet de rendre de plus en plus fréquentes aussi bien la rupture des ressorts desdits registres que la casse des câbles de commande. Or, la réparation de ces incidents de fonctionnement est malaisée car elle implique le démontage et le remontage subséquent d'un grand nombre de ressorts sur lesquels s'exerce une très forte tension.It should be noted here that to allow weaving machines to operate at very high speeds, there is currently a tendency to resort to increasingly powerful registers, which has the effect of making them more and more frequent as well. the rupture of the springs of said registers that the breakage of the control cables. However, the repair of these operating incidents is difficult because it involves the disassembly and subsequent reassembly of a large number of springs on which a very high tension is exerted.

C'est à cet inconvénient qu'entend remédier la présente invention, laquelle a pour objet le dispositif de tirage qui est défini à la revendication 1.It is this drawback that the present invention intends to remedy, which relates to the drawing device which is defined in claim 1.

En fait l'invention consiste essentiellement à engager à l'intérieur de coulisses de guidage l'axe qui supporte chaque ensemble de leviers oscillants de renvoi et à associer audit axe des moyens d'actionnement agencés pour opérer son déplacement transversal dans lesdites coulisses et, subséquemment, la détente momentanée des ressorts des registres et des câbles de commande en vue d'une intervention à leur niveau.In fact, the invention essentially consists in engaging inside the guide slides the axis which supports each set of oscillating return levers and in associating to said axis actuation means arranged to effect its transverse movement in said slides and, subsequently, the momentary relaxation of the damper springs and the control cables for intervention at their level.

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

Fig. 1 est une vue de côté d'un dispositif de tirage établi conformément à la présente invention.Fig. 1 is a side view of a drawing device established in accordance with the present invention.

Fig. 2 est une coupe verticale suivant le plan indiqué en II-II en fig. 1.Fig. 2 is a vertical section along the plane indicated in II-II in FIG. 1.

Fig. 3 illustre en perspective l'agencement de l'une des deux brides qui assurent la fixation réglable de l'axe qui supporte les leviers oscillants.Fig. 3 illustrates in perspective the arrangement of one of the two flanges which provide the adjustable fixing of the axis which supports the oscillating levers.

Fig. 4 reproduit fig. 1 à la position détendue des registres.Fig. 4 reproduced fig. 1 at the relaxed position of the registers.

Fig. 5 illustre une variante de réalisation de la coulisse.Fig. 5 illustrates an alternative embodiment of the slide.

Fig. 6 montre l'application de l'invention au cas des mécaniques d'armure qui sont montées en superstructure, c'est-à-dire au-dessus des cadres de lisses.Fig. 6 shows the application of the invention to the case of armor mechanics which are mounted in superstructure, that is to say above the heald frames.

Fig. 7 représente une variante de fig. 6.Fig. 7 shows a variant of FIG. 6.

En fig. 1, la référence 1 désigne l'un des cadres de lisses montés sur une machine à tisser. Chaque cadre 1 est rendu latéralement solidaire d'un câble de commande 2 dont une extrémité est arrimée à l'un des organes de manoeuvre de la mécanique d'armure, tandis que l'extrémité opposée est renvoyée sur l'un d'une série de leviers oscillants 3 avant d'être fixée à un registre 4. A la façon usuelle, chaque registre 4 comprend une nappe de ressorts verticaux 5 qui sont accrochés à une agrafe supérieure 6 fixée à l'extrémité du câble 2 au-dessous du levier 3 correspondant, et à une agrafe inférieure 7 retenue en place par un ratelier 8 solidaire d'une structure verticale 9 de la machine à tisser.In fig. 1, reference 1 designates one of the heald frames mounted on a weaving machine. Each frame 1 is made laterally integral with a control cable 2, one end of which is secured to one of the operating members of the armor mechanism, while the opposite end is returned to one of a series of oscillating levers 3 before being fixed to a register 4. In the usual way, each register 4 comprises a sheet of vertical springs 5 which are hooked to an upper clip 6 fixed to the end of the cable 2 below the lever 3 corresponding, and to a lower clip 7 held in place by a rack 8 secured to a vertical structure 9 of the weaving machine.

L'ensemble des leviers 3, en nombre égal à celui des cadres de lisses 1 de la machine à tisser envisagée, est monté à oscillation sur un axe horizontal 10 établi à une section circulaire de façon à ce que lesdits leviers 3, rendus solidaires des câbles 2 par le moyen d'une attache telle que 3a, puissent librement tourner sur ledit axe.The set of levers 3, equal in number to that of the heald frames 1 of the weaving machine envisaged, is mounted to oscillate on a horizontal axis 10 established in a circular section so that said levers 3, made integral with the cable 2 by means of a fastener such as 3a, can rotate freely on said axis.

Conformément à l'invention, l'axe 10 est supporté par les deux structures verticales 9 de la machine à tisser par l'intermédiaire de deux brides verticales 11, fixées au sommet desdites structures à la manière illustrée en fig. 2. Chaque bride 11 est découpée d'une lumière allongée 11a dont l'axe longitudinal est orienté obliquement par rapport à l'axe vertical du cadre 2, comme montré en fig. 3. La lumière 11a est établie à une largeur telle qu'elle forme coulisse pour l'extrémité correspondante de l'axe 10 qui la traverse.According to the invention, the axis 10 is supported by the two vertical structures 9 of the weaving machine by means of two vertical flanges 11, fixed to the top of said structures in the manner illustrated in FIG. 2. Each flange 11 is cut out from an elongated lumen 11 a whose longitudinal axis is oriented obliquely relative to the vertical axis of the frame 2, as shown in FIG. 3. The lumen 11 a is established at a width such that it forms slides for the corresponding end of the axis 10 which passes through it.

Pour le déplacement de l'axe 10 dans les lumières ou coulisses 11a suivant l'axe longitudinal de celles-ci, on a recours, au niveau de chaque bride 11, à une vis 12 qui traverse une perforation 11b prévue dans la bride envisagée suivant l'axe de la lumière 11a, pour se visser dans un taraudage 10a ménagé diamétralement dans chacune des extrémités de l'axe 10, comme clairement illustré en fig. 3.For the displacement of the axis 10 in the lights or slides 11 a along the longitudinal axis thereof, recourse is had, at the level of each flange 11, to a screw 12 which passes through a perforation 11 b provided in the flange envisaged along the axis of the light 11 a , to be screwed into a thread 10 a formed diametrically in each of the ends of the axis 10, as clearly illustrated in FIG. 3.

Lorsque la machine à tisser fonctionne, l'axe-support 10 des leviers oscillants 3 se trouve en position haute à l'intérieur des coulisses 11a, à la manière représentée en fig. 1. A cette position haute, l'agrafe supérieure 6 se trouve distante d'une hauteur H de l'agrafe inférieure fixe 7, de sorte que les ressorts 5 de l'ensemble des registres 4 sont sous tension et assurent donc bien leur fonction : l'abaissement des cadres 1 sous l'effet de la commande positive exercée par les câbles 2 engendre une surtension des registres 4 qui ramènent élastiquement lesdits cadres en position haute dès que les organes de manoeuvre de la mécanique cessent leur mouvement positif.When the weaving machine is operating, the support axis 10 of the oscillating levers 3 is in the high position inside the slides 11 a , in the manner shown in FIG. 1. At this high position, the upper clip 6 is distant by a height H from the fixed lower clip 7, so that the springs 5 of the set of registers 4 are under tension and therefore ensure their function well : the lowering of the frames 1 under the effect of the positive control exerted by the cables 2 generates an overvoltage of the registers 4 which resiliently bring said frames to the high position as soon as the mechanical operating members cease their positive movement.

Pour une intervention au niveau de l'un des registres 4 en vue du remplacement d'un ressort 5 après rupture, ou au niveau de l'un des câbles 2 en vue de la substitution d'un câble usé ou sectionné, il suffit à l'opérateur de manoeuvrer angulairement les vis 12 portées par les deux brides 11, de façon à repousser vers le bas l'axe 10 jusqu'à la position inférieure illustrée en fig. 4. On conçoit que l'abaissement de cet axe 10 sur une hauteur h provoque l'abaissement correspondant de l'agrafe supérieure 6 de tous les registres 4, si bien que les ressorts 5 sont détendus, cette détente facilitant évidemment la réparation. Une fois celle-ci opérée, les vis 12 sont manoeuvrées pour ramener l'axesupport 10 en position haute de fonctionnement.For an intervention at one of the registers 4 for the replacement of a spring 5 after rupture, or at one of the cables 2 for the replacement of a worn or cut cable, it suffices to the operator to angularly maneuver the screws 12 carried by the two flanges 11, so as to push down the axis 10 to the lower position illustrated in FIG. 4. It is understood that the lowering of this axis 10 to a height h causes the corresponding lowering of the upper clip 6 of all the registers 4, so that the springs 5 are relaxed, this relaxation obviously facilitating repair. Once once it has been operated, the screws 12 are maneuvered to bring the support axis 10 back to the high operating position.

Il convient d'observer que par suite de l'obliquité de l'axe longitudinal des lumières ou coulisses 11a, l'abaissement de l'axe 10 s'accompagne d'un déplacement horizontal de valeur d, ce qui a pour effet de ramener en direction des structures 9 la portion des câbles 2 comprise entre l'attache de ceux-ci sur le côté des cadres de lisses 1 et les leviers oscillants 3. Les câbles 2 s'écartent donc des cadres 1 dont l'extraction et la mise en place sont ainsi considérablement simplifiées.It should be observed that as a result of the obliquity of the longitudinal axis of the lights or slides 11 a , the lowering of the axis 10 is accompanied by a horizontal displacement of value d , which has the effect of bring back towards the structures 9 the portion of the cables 2 between the attachment of these on the side of the heald frames 1 and the oscillating levers 3. The cables 2 therefore deviate from the frames 1, the extraction and implementation are thus considerably simplified.

Lorsque ce déplacement horizontal systématique des câbles 2 dû à l'obliquité des coulisses 11a risque de se révéler gênant, on peut avoir recours à la variante illustrée en fig. 5. Dans le cas envisagé, chaque bride 111 est creusée d'une coulisse 111a à profil substantiellement triangulaire, dont la base comporte deux empreintes 111b et 111c qui sont profilées pour recevoir sélectivement l'extrémité correspondante de l'axe 10 engagée à l'intérieur de la coulisse précitée.When this systematic horizontal movement of the cables 2 due to the obliquity of the slides 11 is likely to prove to be troublesome, recourse may be had to the variant illustrated in FIG. 5. In the case envisaged, each flange 111 is hollowed out with a slide 111 a with a substantially triangular profile, the base of which has two indentations 111 b and 111 c which are profiled to selectively receive the corresponding end of the engaged axis 10 inside the aforementioned slide.

La manoeuvre de la vis 12 simultanément associée à chaque bride 111 et à l'axe 10 permet d'abaisser ce dernier jusqu'à l'amener dans l'empreinte 111b ; le déplacement vertical de cette axe 10 assure alors la détente de registres 4 et des câbles 2, sans que l'orientation de ces câbles soit affectée. Par contre, pour le démontage des cadres 1, l'opérateur transfère chacune des extrémités de l'axe 10 des deux empreintes 111b aux deux empreintes 111c, ce qui a pour effet d'écarter les câbles 2 des cadres 1.The operation of the screw 12 simultaneously associated with each flange 111 and the axis 10 makes it possible to lower the latter until it brings it into the imprint 111 b ; the vertical movement of this axis 10 then ensures the expansion of registers 4 and cables 2, without the orientation of these cables being affected. Against by, for disassembling frames 1, the operator transfers each end of the axis 10 of the two cavities 111 b at both fingerprints 111 c, which has the effect of moving the cables 2 of the frames 1.

Il va de soi qu'en pareil cas, la perforation pratiquée dans le sommet de chaque bride 111 doit être profilée pour permettre la modification de l'orientation de la vis 12.It goes without saying that in such a case, the perforation made in the top of each flange 111 must be profiled to allow the orientation of the screw 12 to be modified.

Fig. 6 illustre l'application de l'invention aux machines à tisser dans lesquelles la mécanique d'armure 13 est supportée par une super-structure fixe 14. Les deux câbles 2 associés à chaque organe de manoeuvre 13a de la mécanique 13 pour assurer la commande du cadre de lisses 1 correspondant, sont renvoyés pour s'enrouler sur deux leviers 103 reliés audit cadre 1 par des biellettes 15 et à la superstructure 14 par des registres de ressorts 4.Fig. 6 illustrates the application of the invention to weaving machines in which the weave mechanics 13 is supported by a fixed super-structure 14. The two cables 2 associated with each operating member 13a of the mechanics 13 for controlling of the corresponding heald frame 1, are returned to wind on two levers 103 connected to said frame 1 by connecting rods 15 and to the superstructure 14 by spring registers 4.

Comme dans la forme de réalisation suivant fig. 1, chaque ensemble latéral de leviers 103 est porté par un même axe horizontal 10. Les extrémités de celui-ci sont engagées dans des lumières ou coulisses 109a qu'on a supposé être directement aménagées dans la structure verticale 109 ; à chaque extrémité est associée une vis 12 dont la tête prend appui contre le bord d'une perforation pratiquée dans la structure 109 précitée.As in the embodiment according to fig. 1, each lateral set of levers 103 is carried by the same horizontal axis 10. The ends of the latter are engaged in lights or slides 109 a that it was assumed to be directly arranged in the vertical structure 109; at each end is associated a screw 12, the head of which bears against the edge of a perforation made in the above-mentioned structure 109.

Dans le cas envisagé en fig. 6, la portion du câble 2 comprise entre le levier 103 correspondant et la poulie supérieure de renvoi 16 est orientée verticalement, comme l'axe du registre 4. Chaque coulisse 109a est orientée de manière substantiellement verticale de façon à ce que l'abaissement de l'axe 10 et des leviers 103 lors de la manoeuvre des vis 12 provoque la détente simultanée des ressorts des registres 4 et des câbles 2.In the case envisaged in fig. 6, the portion of the cable 2 between the corresponding lever 103 and the upper deflection pulley 16 is oriented vertically, like the axis of the damper 4. Each slide 109 a is oriented substantially vertically so that the lowering of the axis 10 and of the levers 103 during the operation of the screws 12 causes the springs of the registers 4 and the cables 2 to relax simultaneously.

Dans la variante considérée en fig. 7, l'axe de la portion d'extrémité de chaque câble 2 définit un angle obtus avec l'axe vertical du registre 4 correspondant. Dans ce cas, la détente simultanée des registres 4 et des câbles 2 oblige à axer les lumières ou coulisses 109a suivant la bissectrice de l'angle précité.In the variant considered in fig. 7, the axis of the end portion of each cable 2 defines an obtuse angle with the vertical axis of the corresponding register 4. In this case, the simultaneous expansion of the registers 4 and the cables 2 forces the lights or slides 109 a to be oriented along the bisector of the aforementioned angle.

Il va de soi que dans tous les cas, on pourrait imaginer d'autres moyens que les vis 12 pour assurer le déplacement et l'immobilisation de l'axe-support 10 par rapport aux registres 4 du dispositif de tirage. On peut notamment avoir recours à de petits vérins hydrauliques.It goes without saying that in all cases, one could imagine other means than the screws 12 for ensuring the movement and immobilization of the support axis 10 relative to the registers 4 of the drawing device. One can in particular have recourse to small hydraulic cylinders.

On observera par ailleurs que l'invention est bien entendu susceptible d'être appliquée avec avantage aux ratières ou autres mécaniques d'armure du type négatif dans lesquelles le dispositif de tirage associé à chaque cadre de'lisses ne comprend qu'un câble unique agencé de manière à assurer à lui seul l'actionnement des deux leviers oscillants prévus pour la manoeuvre du cadre envisagé, du genre décrit dans la demande de brevet français N° 91 10212 déposée le 6 Août 1991 au nom de la présente Demanderesse.It will also be observed that the invention is of course capable of being applied with advantage to the dobbies or other mechanical armor of the negative type in which the pulling device associated with each smooth frame comprises only a single cable arranged so as to ensure by itself the actuation of the two oscillating levers provided for the operation of the envisaged frame, of the kind described in French patent application No. 91 10212 filed on August 6, 1991 in the name of the present Applicant.

Claims (3)

Dispositif de tirage pour l'actionnement des cadres de lisses des mécaniques d'armure du type négatif, du genre comprenant au niveau de chaque cadre (1) au moins un câble de commande (2) qui est fixé latéralement audit cadre et dont une extrémité est attachée à l'un des organes de manoeuvre (13a) de la mécanique (13) tandis que l'extrémité opposée est associée à un registre de ressorts (4) après renvoi par un levier (3) monté à oscillation sur un axe-support (10) porté par les structures fixes (9) de la machine à tisser, caractérisé en ce que l'axe-support (10) est engagé à l'intérieur de coulisses de guidage (11a, 111a, 109a) auxquelles sont associés des moyens d'actionnement (12) agencés pour opérer son déplacement transversal dans lesdites coulisses et, subséquemment, la détente momentanée de l'ensemble des registres (4) et des câbles (2) en vue d'une intervention à leur niveau.Pulling device for actuating heald frames of armor mechanics of the negative type, of the type comprising at each frame (1) at least one control cable (2) which is fixed laterally to said frame and one end of which is attached to one of the maneuvering members (13 a) of the shaft (13) while the opposite end is associated with a spring register (4) after return by a lever (3) mounted to oscillate about an axis -support (10) borne by the fixed structures (9) of the weaving machine, characterized in that the support shaft (10) is engaged inside guiding slides (11 a, 111 a, 109 a ) which are associated with actuating means (12) arranged to operate its transverse movement in said slides and, subsequently, the momentary expansion of all of the registers (4) and cables (2) for an intervention to their level. Dispositif suivant la revendication 1, caractérisé en ce que les moyens d'actionnement (11-12) sont agencés de façon à ce que le déplacement de l'axe-support (10) dans la direction correspondant à la détente des registres (4) s'accompagne d'un déplacement orienté transversalement à ladite direction de façon à tendre à écarter les câbles (2) de leur point d'attache sur les cadres de lisses (1).Device according to claim 1, characterized in that the actuating means (11-12) are arranged so that the displacement of the support axis (10) in the direction corresponding to the expansion of the registers (4) is accompanied by a movement oriented transversely to said direction so as to tend to separate the cables (2) from their point of attachment to the heald frames (1). Dispositif suivant l'une quelconque des revendications 1 et 2, caractérisé en ce que les moyens d'actionnement sont constitués par deux vis (12) orientées suivant l'axe longitudinal des coulisses et simultanément engagées dans des perforations (11b) pratiquées dans des brides fixes (11) et dans des taraudages (10a) prévus diamétralement dans les extrémités de l'axe-support (10) introduites dans ces coulisses.Device according to either of Claims 1 and 2, characterized in that the actuating means consist of two screws (12) oriented along the longitudinal axis of the slides and simultaneously engaged in perforations (11 b ) made in fixed flanges (11) and in threads (10 a ) provided diametrically in the ends of the support axis (10) introduced in these slides.
EP92420026A 1991-01-25 1992-01-23 Drawing system for driving the heald frames of negative dobbies Expired - Lifetime EP0496686B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101065A FR2672062B1 (en) 1991-01-25 1991-01-25 PULLING DEVICE FOR CONTROLLING THE HALF-FRAMES OF NEGATIVE WEAPON MECHANICS.
FR9101065 1991-01-25

Publications (2)

Publication Number Publication Date
EP0496686A1 true EP0496686A1 (en) 1992-07-29
EP0496686B1 EP0496686B1 (en) 1995-10-11

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Application Number Title Priority Date Filing Date
EP92420026A Expired - Lifetime EP0496686B1 (en) 1991-01-25 1992-01-23 Drawing system for driving the heald frames of negative dobbies

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US (1) US5203381A (en)
EP (1) EP0496686B1 (en)
JP (1) JP3307971B2 (en)
KR (1) KR100234552B1 (en)
DE (1) DE69205294T2 (en)
ES (1) ES2078711T3 (en)
FR (1) FR2672062B1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN105004565A (en) * 2015-08-13 2015-10-28 吴江万工机电设备有限公司 Device and method for testing influences imposed on negative shedding mechanism of loom by heald returning springs

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2250995B1 (en) 2009-05-15 2020-01-15 Merck Patent GmbH Pigment mixtures
DE102009025293A1 (en) 2009-06-15 2010-12-16 Adolf Pfaff & Dr. Karl-Friedrich Reichenbach GbR (vertretungsberechtigter Gesellschafter: Adolf Pfaff, 79183 Waldkirch) Radioopaque shape memory polymers
CN103352286A (en) * 2013-07-04 2013-10-16 杭州旭仁纺织机械有限公司 Detection device for dobby

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Publication number Priority date Publication date Assignee Title
DE3533336A1 (en) * 1984-09-18 1986-03-27 Murata Kikai K.K., Kyoto DEVICE FOR AFFECTING STEM MOVEMENT IN A WEAVING MACHINE
EP0252177A1 (en) * 1986-07-09 1988-01-13 Kaiser GmbH &amp; Co. KG Device to connect an oscillating lever of a dobby to a heddle frame of a loom
EP0335811A1 (en) * 1988-03-31 1989-10-04 S.A. DES ETABLISSEMENTS STAUBLI (France) Drawing system for driving the heald frames of negative dolbys

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Publication number Priority date Publication date Assignee Title
US2250412A (en) * 1940-05-22 1941-07-22 Draper Corp Harness motion
FR2617204B1 (en) * 1987-06-26 1989-10-27 Staubli Sa Ets DEVICE FOR COUPLING THE RAIL FRAMES TO THE TRANSMISSION ELEMENTS OF A MECHANICS FOR THE FORMATION OF A CROWD
FR2626013B1 (en) * 1988-01-20 1990-05-18 Staubli Sa Ets DRAWING SYSTEM FOR CONTROLLING THE HANDLE FRAMES OF NEGATIVE WEAPON MECHANICS

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Publication number Priority date Publication date Assignee Title
DE3533336A1 (en) * 1984-09-18 1986-03-27 Murata Kikai K.K., Kyoto DEVICE FOR AFFECTING STEM MOVEMENT IN A WEAVING MACHINE
EP0252177A1 (en) * 1986-07-09 1988-01-13 Kaiser GmbH &amp; Co. KG Device to connect an oscillating lever of a dobby to a heddle frame of a loom
EP0335811A1 (en) * 1988-03-31 1989-10-04 S.A. DES ETABLISSEMENTS STAUBLI (France) Drawing system for driving the heald frames of negative dolbys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105004565A (en) * 2015-08-13 2015-10-28 吴江万工机电设备有限公司 Device and method for testing influences imposed on negative shedding mechanism of loom by heald returning springs

Also Published As

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DE69205294T2 (en) 1996-05-15
KR100234552B1 (en) 1999-12-15
KR920014965A (en) 1992-08-26
JP3307971B2 (en) 2002-07-29
FR2672062A1 (en) 1992-07-31
EP0496686B1 (en) 1995-10-11
FR2672062B1 (en) 1993-05-07
US5203381A (en) 1993-04-20
ES2078711T3 (en) 1995-12-16
DE69205294D1 (en) 1995-11-16
JPH04289239A (en) 1992-10-14

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