EP0079843B1 - Electromagnetic device for operating dobbies - Google Patents

Electromagnetic device for operating dobbies Download PDF

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Publication number
EP0079843B1
EP0079843B1 EP82420115A EP82420115A EP0079843B1 EP 0079843 B1 EP0079843 B1 EP 0079843B1 EP 82420115 A EP82420115 A EP 82420115A EP 82420115 A EP82420115 A EP 82420115A EP 0079843 B1 EP0079843 B1 EP 0079843B1
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EP
European Patent Office
Prior art keywords
selector
dobby
hooks
stop
poles
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EP82420115A
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German (de)
French (fr)
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EP0079843A1 (en
Inventor
Joseph Palau
Jean-Paul Froment
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Staubli Faverges SCA
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Staubli Faverges SCA
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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00Dobbies

Definitions

  • the present invention relates to weaving dobbies and it relates more particularly to devices of the electromagnetic type intended for their control.
  • a dobby comprises a single control device which, according to a variable program corresponding to the particular weave desired for the fabric being produced on the weaving machine, actuates vertically a series of frames of smooth ensuring the operation of the warp threads.
  • the vertical displacement of the latter implies a significant effort, so that between the control device and the cables or operating rods linked to each of the different frames of the dobby, an independent amplifier system must be interposed, the assembly formed by each frame and by its amplifier system constituting what is called a "blade" of the dobby.
  • the control device includes in the first place a reading device for reading the weaving program, this program possibly depending on the case being in the form of a continuous strip of perforated paper, of an articulated series of perforated cartons, of 'a chain or an ankle cylinder, etc ...
  • the information recorded by the reading device must be transformed into mechanical movements by a relatively complex actuation mechanism, incorporating a series of mobile rods maneuvered by motor knives with reciprocating movement or by rotating cams.
  • this actuation mechanism comprises at least one output member which acts selectively on one or the other of a pair of tilting hooks ensuring actuation of the corresponding amplifier system, this these may, depending on the case, be of the rotary type or of the oscillating balance type.
  • the present invention intends mainly to remedy, by making it possible to produce an electromagnetic control device for dobby which is of simple construction in a small footprint and of perfectly satisfactory operating reliability, whatever the speed of work of the weaving machine with which the dobby is associated.
  • the device according to the invention of the type comprising a reading device for reading the weaving program connected to electromagnets for operating a pair of hooks ensuring the control of an amplifier system provided at each of the blades, is characterized in that the assembly of the electromagnets is fixed on a single chassis which is driven by an oscillating movement linked to that of the dobby and which carries at each blade a selector formed by a rocking lever articulated on an axis of said chassis and associated with elastic means tending to separate it from the poles of attraction of the corresponding electromagnet, which selector, thus driven by an alternating movement which approaches it and moves it cyclically away from the actuating hooks , cooperates with a stop which sticks it against the aforementioned poles when it moves away from the above-mentioned hooks when it is spaced from said poles.
  • the selector will remain stuck or on the contrary be moved away by its elastic return means, if although when the chassis approaches again the pairs of hooks, this selector will come to bear against one or against the other of the hooks of the pair concerned. It should be observed that in such a process the electromagnets never operate the positive displacement of the selectors; their role is limited to retaining, against the elastic return means, the selector which has applied against their poles, or on the contrary to releasing it, so that the effort which they provide is very reduced .
  • the uniqueness of the block of electromagnets considerably simplifies the control by the reading device at the same time as it significantly reduces the overall size.
  • the tilting selectors interposed between the electromagnets and the pairs of hooks are capable of ensuring a force amplification role which simplifies the construction and which makes it possible to have recourse to lower supply currents.
  • the rotary dobby illustrated in fig. 1 to 3 is of the type which was the subject of French patent application No. 81.20502 filed October 29, 1981 in the name of the Applicant.
  • the main shaft 1 connected to the input shaft of the dobby through a modulating mechanism so as to be driven by an intermittent rotational movement with stops every 180 °, supports the various amplifying systems of the dobby.
  • each system comprises an eccentric 2 mounted idly on the shaft 1 and provided with a lateral plate 3 on which a ratchet is articulated laterally 4.
  • the eccentric 2 is engaged in the opening of a connecting rod 5 which is harnessed, by means of an arm 6 (fig. 1) pivoting on a fixed axis 7, with the usual pull lever (shown diagrammatically in 8) connected to the heald frame which corresponds to the envisaged blade of the dobby.
  • Each of the amplifying systems further comprises a circular or driving disc 9 whose central opening is provided crenellated to cooperate with the longitudinal grooves of the main shaft 1. At two diametrically opposite points on its periphery, this disc 9 is cut out of two notches 9a (fig. 2) which are intended to cooperate with a finger 4a formed at one end of the coupling pawl 4. The opposite end of the latter is arranged at a notch 3a formed in the periphery of the plate 3 secured to the eccentric 2. It will be observed that a spring 10 (fig. 1), interposed between a radial tab of the plate 3 and the pawl 4, tends to elastically hold the finger 4a against the periphery of the disc 9 .
  • each blade of the dobby is operated using two tilting hooks 11 and 12 having two arms oriented at right angles on either side of a fixed axis pivot 13, respectively 14 carried by the walls of the housing A of the dobby.
  • One of the arms of each hook is profiled to present a spout 11a, 12a suitable for engaging, as will be seen below, in the notch 3a of the plate 3 to push back the pawl 4 during each stop of the shaft 1 and thus immobilize the eccentric 2.
  • the other arm, intended to receive the action of the control device according to the invention generally referenced 15, is biased to tilt by a spring 16 which thus tends to engage the spout 11 a , respectively 12a, in the notch 3a.
  • the control device 15 comprises a reading device shown diagrammatically at 17, arranged to take information on an armor program, assumed to be formed by a chain of perforated cartons 17a. This information is transformed by the apparatus 17 into electrical pulses which are sent by a cable 18 to a single control unit with electromagnets 19, advantageously of the type described in the patent application No. 80 10548 filed on May 6, 1980 in the name of the Claimant.
  • This block 19 contains a series of electromagnets in number equal to that of the blades of the envisaged dobby, each electromagnet 19a receiving from the device 17 the pulses corresponding to its blade.
  • the block 19 is carried by a frame formed by two arms 20 joined to one another by a profile 21 made integral with said block.
  • the two arms 20 are fixed on a shaft 22 which is driven from the input shaft of the dobby through a modulator, so as to be driven by an oscillating movement.
  • control device 15 also comprises a series of selectors 23 in number equal to that of the blades of the dobby, all of these selectors being brought to free tilting by a pin 24 whose ends are fixed to the arms 20 of the aforementioned chassis.
  • Each selector 23 is provided with a metal plate 23 'pivotally attached and intended to cooperate with the poles of the electromagnet 19a which corresponds to it in the block 19, it being observed that a spring 25 (fig. 4) tends to move said selector away from the aforementioned poles.
  • each of the selectors 23 is profiled to determine a kind of nose 23a suitable for acting, as will be seen below, on the corresponding end or tail of the tilting hooks 11 or 12, while it comprises laterally a heel 23b which cooperates with a fixed stop 26a provided on one of two crosspieces 26 fixed in the casing A below the lowest point of the oscillating travel of the block 19.
  • the eccentric 2 is then made angularly integral with the shaft 1 through the plate 3, the pawl 4 and the disc 9, so that as soon as the shaft 1 begins a new rotation of 180 °, the connecting rod 5 considered is actuated and therefore operates the pull lever 8 and the heald frame associated therewith (line V of the diagram in fig. 8).
  • the pawl 4 is placed opposite the beak 12a of the hook 12, which beak is elastically engaged in the notch 3a.
  • the electromagnet 19a is still energized, the selector 23 remains stuck against the poles of said electromagnet, so that when the chassis is lowered 20-21 this selector will again activate the hook 11; this actuation will however have no effect since at this time the pawl 4 can only be actuated by the hook 12.
  • the spout 12a remains engaged in the notch 3a and therefore retains the plate immobile 3 and the eccentric 2.
  • the pull lever 8 remains in the anterior position corresponding to the lifting of the heald frame, as shown in the diagram.
  • the selector 23 takes off therefrom during the upward stroke of the chassis 20-21 (fig. 5) , so that when this chassis performs its downward stroke according to fig. 6, the nose 23a actuates the tail of the hook 12.
  • the spout 12a is extracted from the notch 3a and the pawl 4 elastically introduces its spout 4a into the corresponding notch 9a of the disc 9.
  • the rod 5 returns to its initial position and the corresponding heald frame moves.
  • FIG. schematically illustrates the application of the control device according to the invention to a dobby of the type with scales.
  • each of the pulling levers 8 associated with the heald frames is coupled to a lever or half-balance 27 which pivots at 28 and which carries a balance 29 at articulation.
  • Each balance 29 is formed by a sort of double lever provided at each of its ends with a coupling hook 30, respectively 31.
  • a cross member 32, respectively 33 these two cross members being mounted on a flange 34 animated by an oscillating movement.
  • each balance 29 In front of each balance 29 are provided two fixed axes 35 on each of which pivots a retaining hook 36, 37 intended to cooperate with the coupling hook 30, respectively 31 of the balance.
  • a spring 38 tends to hold the hooks 36 and 37 in an external position for which they are able to come to engage with the hooks 30 and 31, stops 39 limiting the angular displacement of said hooks 36 and 37.
  • the device according to the invention comprises, as in the previous embodiment, a frame 40 fixed on a shaft 41 driven by an oscillating movement.
  • This chassis supports a block 42 identical to that referenced 19, as well as an axis 43 on which are mounted idle a number of selectors 44 equal to that of the electromagnets 42a of the aforementioned block.
  • a spring 45 tends to keep each selector 44 in contact with a fixed stop 46.
  • each selector 44 is provided with two opposite extensions 44a, respectively 44b, in order to actuate the retaining hooks 36 and 37, provided for this purpose with a spout 36a, respectively 37a; it should be observed that these nozzles 36a and 37a are arranged on the hooks 36 and 37 behind the pivots or fixed axes 35, so that when said hooks are pushed back by the spout which is associated with them, their useful part, that is to say their end which is intended to cooperate with the corresponding towing hook 30, 31, is moved outwards, thus moving away from the latter hook.
  • FIG. 10 shows that in the same way the upper hooks 36 and 30 remain stationary when the selector 44, still retained against the electromagnet 42a assumed to be powered, moves upward with its extension 44a in the retracted position relative to the spout 36a .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Control Of Position Or Direction (AREA)
  • Mechanical Control Devices (AREA)

Description

La présente invention a trait aux ratières de tissage et elle concerne plus particulièrement les dispositifs du type électromagnétique destinés à leur commande.The present invention relates to weaving dobbies and it relates more particularly to devices of the electromagnetic type intended for their control.

On sait que dans la forme classique une ratière comprend un dispositif de commande unique qui en fonction d'un programme variable correspondant à l'armure particulière désirée pour le tissu en cours de réalisation sur la machine à tisser, actionne verticalement une série de cadres de lisses assurant la manoeuvre des fils de chaîne. Par suite de la tension des fils qui traversent les oeillets des lisses d'un même cadre, le déplacement vertical de celui-ci implique un effort important, de telle sorte qu'entre le dispositif de commande et les câbles ou biellettes de manoeuvre liés à chacun des différents cadres de la ratière, l'on doit interposer un système amplificateur indépendant, l'ensemble formé par chaque cadre et par son système amplificateur constituant ce qu'on appelle une »lame« de la ratière.It is known that in the conventional form a dobby comprises a single control device which, according to a variable program corresponding to the particular weave desired for the fabric being produced on the weaving machine, actuates vertically a series of frames of smooth ensuring the operation of the warp threads. As a result of the tension of the wires which pass through the eyelets of the heddles of the same frame, the vertical displacement of the latter implies a significant effort, so that between the control device and the cables or operating rods linked to each of the different frames of the dobby, an independent amplifier system must be interposed, the assembly formed by each frame and by its amplifier system constituting what is called a "blade" of the dobby.

Le dispositif de commande englobe en premier lieu un appareil de lisage pour la lecture du programme de tissage, ce programme pouvant suivant les cas se présenter sous la forme d'une bande continue de papier perforé, d'une série articulée de cartons percés, d'une chaîne ou d'un cylindre porte-chevilles, etc.... Les informations relevées par l'appareil de lisage doivent être transformées en mouvements mécaniques par un mécanisme d'actionnement relativement complexe, incorporant une série de tiges mobiles manoeuvrées par des couteaux moteurs à déplacement alternatif ou par des cames tournantes. Au niveau de chacune des lames de la ratière ce mécanisme d'actionnement comprend au moins un organe de sortie qui agit sélectivement sur l'un ou l'autre d'une paire de crochets basculants assurant l'actionnement du système amplificateur correspondant, celui-ci pouvant suivant le cas être du type rotatif ou du type à balances oscillantes.The control device includes in the first place a reading device for reading the weaving program, this program possibly depending on the case being in the form of a continuous strip of perforated paper, of an articulated series of perforated cartons, of 'a chain or an ankle cylinder, etc ... The information recorded by the reading device must be transformed into mechanical movements by a relatively complex actuation mechanism, incorporating a series of mobile rods maneuvered by motor knives with reciprocating movement or by rotating cams. At each of the dobby blades, this actuation mechanism comprises at least one output member which acts selectively on one or the other of a pair of tilting hooks ensuring actuation of the corresponding amplifier system, this these may, depending on the case, be of the rotary type or of the oscillating balance type.

On a songé à simplifier la construction du dispositif de commande en remplaçant le mécanisme d'actionnement interposé entre l'appareil de lisage et les paires de crochets basculants d'actionnement, par deux séries d'électro-aimants, chaque série comprenant un nombre d'électro-aimants égal à celui des lames de la ratière. On conçoit en effet que chacun de ces électro-aimants est susceptible d'être sélectivement alimenté par l'appareil de lisage afin d'agir, par l'intermédiaire d'un organe mobile correspondant, sur celui des deux crochets basculants de la lame envisagée auquel il est associé.Consideration has been given to simplifying the construction of the control device by replacing the actuation mechanism interposed between the reading apparatus and the pairs of tilting actuation hooks, by two series of electromagnets, each series comprising a number d electromagnets equal to that of the dobby blades. It is in fact understood that each of these electromagnets is capable of being selectively supplied by the reading device in order to act, by means of a corresponding movable member, on that of the two tilting hooks of the envisaged blade with which it is associated.

Les tentatives faites dans ce sens n'ont toutefois pas donné entière satisfaction en pratique. Ordinairement les électro-aimants de chaque série sont montés côte à côte dans un bloc isolant fixé à demeure sur le bâti de la ratière, et si l'on tient compte de la rangée correspondante d'organes mobiles associée à chaque bloc, l'on aboutit à un appareillage très encombrant dont le logement dans l'espace libre, forcément exigu, d'une ratière se révèle assez délicat.Attempts to do so, however, have not been entirely satisfactory in practice. Ordinarily the electromagnets of each series are mounted side by side in an insulating block permanently fixed to the frame of the dobby, and if we take into account the corresponding row of movable members associated with each block, we results in a very bulky device whose accommodation in the free space, necessarily cramped, of a dobby is quite delicate.

C'est à cet inconvénient que la présente invention entend principalement remédier, en permettant la réalisation d'un dispositif électromagnétique de commande pour ratière qui soit de construction simple sous un encombrement réduit et de fiabilité de fonctionnement parfaitement satisfaisante, quelle que soit la vitesse de travail de la machine à tisser à laquelle la ratière est associée.It is to this drawback that the present invention intends mainly to remedy, by making it possible to produce an electromagnetic control device for dobby which is of simple construction in a small footprint and of perfectly satisfactory operating reliability, whatever the speed of work of the weaving machine with which the dobby is associated.

Le dispositif suivant l'invention, du genre comprenant un appareil de lisage pour la lecture du programme de tissage relié à des électro-aimants pour manoeuvrer une paire de crochets assurant le contrôle d'un système amplificateur prévu au niveau de chacune des lames, est caractérisé en ce que l'ensemble des électro-aimants est fixé sur un châssis unique qui est animé d'un mouvement oscillant lié à celui de la ratière et qui porte au niveau de chaque lame un sélecteur formé par un levier basculant articulé sur un axe dudit châssis et associé à des moyens élastiques tendant à l'écarter des pôles d'attraction de l'électro-aimant correspondant, lequel sélecteur, ainsi animé d'un déplacement alternatif qui l'approche et l'éloigne cycliquement des crochets d'actionnement, coopère avec une butée qui le recolle contre les pôles précités lorsqu'il s'éloigne des crochets susvisés alors qu'il se trouve écarté desdits pôles.The device according to the invention, of the type comprising a reading device for reading the weaving program connected to electromagnets for operating a pair of hooks ensuring the control of an amplifier system provided at each of the blades, is characterized in that the assembly of the electromagnets is fixed on a single chassis which is driven by an oscillating movement linked to that of the dobby and which carries at each blade a selector formed by a rocking lever articulated on an axis of said chassis and associated with elastic means tending to separate it from the poles of attraction of the corresponding electromagnet, which selector, thus driven by an alternating movement which approaches it and moves it cyclically away from the actuating hooks , cooperates with a stop which sticks it against the aforementioned poles when it moves away from the above-mentioned hooks when it is spaced from said poles.

On comprend dans ces conditions que suivant que l'électro-aimant envisagé est ou non alimenté par l'appareil de lisage en fonction du programme d'armure, le sélecteur va rester collé ou au contraire être éloigné par ses moyens élastiques de rappel, si bien que lorsque le châssis s'approche à nouveau des paires de crochets, ce sélecteur va venir porter contre l'un ou contre l'autre des crochets de la paire concernée. II convient d'observer que dans un tel processus les électro-aimants n'opèrent jamais le déplacement positif des sélecteurs; leur rôle se limite à retenir, à l'encontre des moyens élastiques de rappel, le sélecteur qui est venu s'appliquer contre leurs pôles, ou au contraire à le libérer, de telle sorte que l'effort qu'ils fournissent est très réduit.We understand under these conditions that depending on whether the electromagnet envisaged is powered by the reading device or not depending on the armor program, the selector will remain stuck or on the contrary be moved away by its elastic return means, if although when the chassis approaches again the pairs of hooks, this selector will come to bear against one or against the other of the hooks of the pair concerned. It should be observed that in such a process the electromagnets never operate the positive displacement of the selectors; their role is limited to retaining, against the elastic return means, the selector which has applied against their poles, or on the contrary to releasing it, so that the effort which they provide is very reduced .

On conçoit par ailleurs que l'unicité du bloc d'électro-aimants simplifie des manière considérable la commande par l'appareil de lisage en même temps qu'elle réduit sensiblement l'encombrement général. Les sélecteurs basculants interposés entre les électro-aimants et les paires de crochets sont susceptibles d'assurer un rôle d'amplification d'effort qui simplifie la construction et qui permet d'avoir recours à des courants d'alimentation plus faibles.It is also understood that the uniqueness of the block of electromagnets considerably simplifies the control by the reading device at the same time as it significantly reduces the overall size. The tilting selectors interposed between the electromagnets and the pairs of hooks are capable of ensuring a force amplification role which simplifies the construction and which makes it possible to have recourse to lower supply currents.

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:

  • Fig. 1 est une coupe transversale schématique illustrant l'agencement général d'un dispositif électromagnétique établi suivant l'invention pour la commande d'une ratière du type rotatif.
  • Fig. 2 montre les pièces formant l'un des systèmes amplificateurs de la ratière rotative suivant fig. 1.
  • Fig. 3 est une coupe longitudinale à plus grande échelle représentant à l'état monté les pièces de l'ensemble suivant de fig. 2.
  • Fig. 4 à 7 sont des coupes partielle à plus grande échelle, illustrant le fonctionnement du dispositif de commande suivant fig. 1.
  • Fig. 8 est le diagramme des mouvements des différents éléments mobiles de la ratière suivant fig. 1 à 7.
  • Fig. 9 est une coupe montrant l'agencement d'un dispositif électromagnétique suivant l'invention pour la commande d'une ratière du type à balances.
  • Fig. 10 à 13 montrent à plus grande échelle le fonctionnement de ce dispositif.
  • Fig. 14 est le diagramme des mouvements.
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 is a schematic cross section illustrating the general arrangement of an electromagnetic device established according to the invention for controlling a dobby of the rotary type.
  • Fig. 2 shows the parts forming one of the amplifier systems of the rotary dobby according to FIG. 1.
  • Fig. 3 is a longitudinal section on a larger scale representing in the assembled state the parts of the following assembly of FIG. 2.
  • Fig. 4 to 7 are partial sections on a larger scale, illustrating the operation of the control device according to FIG. 1.
  • Fig. 8 is the diagram of the movements of the various mobile elements of the dobby according to FIG. 1 to 7.
  • Fig. 9 is a section showing the arrangement of an electromagnetic device according to the invention for controlling a dobby of the type with scales.
  • Fig. 10 to 13 show on a larger scale the operation of this device.
  • Fig. 14 is the movement diagram.

La ratière rotative illustrée en fig. 1 à 3 est du type de celle qui a fait l'objet de la demande de brevet français N° 81.20502 déposée le 29 octobre 1981 au nom de la Demanderesse. L'arbre principal 1, relié à l'arbre d'entrée de la ratière à travers un mécanisme modulateur de façon à être animé d'un mouvement de rotation intermittent avec arrêts tous les 180°, supporte les différents système amplificateurs de la ratière. Comme plus particulièrement montré en fig. 2 et 3, chaque système comprend un excentrique 2 monté fou sur l'arbre 1 et pourvu d'un plateau latéral 3 sur lequel s'articule latéralement un cliquet 4. L'excentrique 2 est engagé dans l'ouverture d'une bielle 5 qui est attelée, par l'intermé- diare d'un bras 6 (fig. 1) pivotant sur un axe fixe 7, avec le levier usuel de tirage (schématisé en 8) relié au cadre de lisses qui correspond à la lame envisagée de la ratière.The rotary dobby illustrated in fig. 1 to 3 is of the type which was the subject of French patent application No. 81.20502 filed October 29, 1981 in the name of the Applicant. The main shaft 1, connected to the input shaft of the dobby through a modulating mechanism so as to be driven by an intermittent rotational movement with stops every 180 °, supports the various amplifying systems of the dobby. As more particularly shown in fig. 2 and 3, each system comprises an eccentric 2 mounted idly on the shaft 1 and provided with a lateral plate 3 on which a ratchet is articulated laterally 4. The eccentric 2 is engaged in the opening of a connecting rod 5 which is harnessed, by means of an arm 6 (fig. 1) pivoting on a fixed axis 7, with the usual pull lever (shown diagrammatically in 8) connected to the heald frame which corresponds to the envisaged blade of the dobby.

Chacun des sytèmes amplificateurs comprend encore un disque circulaire ou entraîneur 9 dont l'ouverture centrale est prévue crénelée pour coopérer avec les cannelures longitudinales de l'abre principal 1. En deux points diamétralement opposés de sa périphérie, ce disque 9 est découpé de deux encoches 9a (fig. 2) qui sont destinées à coopérer avec un doigt 4a ménagé à l'une des extrémités du cliquet d'accouplement 4. L'estrémité opposée de ce dernier est disposée au niveau d'une entaille 3a pratiquée dans la périphérie du plateau 3 solidaire de l'excentrique 2. L'on observera qu'un ressort 10 (fig. 1), interposé entre une patte radiale du plateau 3 et le cliquet 4, tend à maintenir élastiquement le doigt 4a contre la périphérie du disque 9.Each of the amplifying systems further comprises a circular or driving disc 9 whose central opening is provided crenellated to cooperate with the longitudinal grooves of the main shaft 1. At two diametrically opposite points on its periphery, this disc 9 is cut out of two notches 9a (fig. 2) which are intended to cooperate with a finger 4a formed at one end of the coupling pawl 4. The opposite end of the latter is arranged at a notch 3a formed in the periphery of the plate 3 secured to the eccentric 2. It will be observed that a spring 10 (fig. 1), interposed between a radial tab of the plate 3 and the pawl 4, tends to elastically hold the finger 4a against the periphery of the disc 9 .

Comme décrit à la demande de brevet précitée, l'actionnement de chaque lame de la ratière est opérée à l'aide de deux crochets basculants 11 et 12 présentant deux bras orientés à l'équerre de part et d'autre d'un axe fixe de pivotement 13, respectivement 14 porté par les parois du carter A de la ratière. L'un des bras de chaque crochet est profilé pour présenter un bec 11a, 12a propre à s'engager, comme on le verra plus loin, dans l'entaille 3a du plateau 3 pour repousser le cliquet 4 lors de chaque arrêt de l'arbre 1 et immobiliser ainsi l'excentrique 2. L'autre bras, destiné à recevoir l'action du dispositif de commande suivant l'invention globalement référencé 15, est sollicité au basculement par un ressort 16 qui tend ainsi à engager le bec 11 a, respectivement 12a, dans l'entaille 3a. Le dispositif de commande 15 comprend un appareil de lisage schématisé en 17, agencé pour prélever les informations sur un programme d'armure, supposé formé par une chaîne de cartons perforés 17a. Ces informations sont transformées par l'appareil 17 en impulsions électriques qui sont envoyées par un câble 18 à un seul bloc de commande à électro-aimants 19, avantageusement du type de celui décrit dans la demande de bre- vetfrançais N° 80 10548 déposée le 6 Mai 1980 au nom de la Demanderesse. Ce bloc 19 renferme une série d'électro-aimants en nombre égal à celui des lames de la ratière envisagée, chaque électro-aimant 19a recevant de l'appareil 17 les impulsions correspondant à sa lame.As described in the aforementioned patent application, the actuation of each blade of the dobby is operated using two tilting hooks 11 and 12 having two arms oriented at right angles on either side of a fixed axis pivot 13, respectively 14 carried by the walls of the housing A of the dobby. One of the arms of each hook is profiled to present a spout 11a, 12a suitable for engaging, as will be seen below, in the notch 3a of the plate 3 to push back the pawl 4 during each stop of the shaft 1 and thus immobilize the eccentric 2. The other arm, intended to receive the action of the control device according to the invention generally referenced 15, is biased to tilt by a spring 16 which thus tends to engage the spout 11 a , respectively 12a, in the notch 3a. The control device 15 comprises a reading device shown diagrammatically at 17, arranged to take information on an armor program, assumed to be formed by a chain of perforated cartons 17a. This information is transformed by the apparatus 17 into electrical pulses which are sent by a cable 18 to a single control unit with electromagnets 19, advantageously of the type described in the patent application No. 80 10548 filed on May 6, 1980 in the name of the Claimant. This block 19 contains a series of electromagnets in number equal to that of the blades of the envisaged dobby, each electromagnet 19a receiving from the device 17 the pulses corresponding to its blade.

Le bloc 19 est porté par un châssis formé par deux bras 20 réunis l'un à l'autre par un profilé 21 rendu solidaire dudit bloc. Les deux bras 20 sont calés sur un arbre 22 qui est entraîné à partir de l'arbre d'entrée de la ratière à travers un modulateur, de façon à être animé d'un mouvement oscillant.The block 19 is carried by a frame formed by two arms 20 joined to one another by a profile 21 made integral with said block. The two arms 20 are fixed on a shaft 22 which is driven from the input shaft of the dobby through a modulator, so as to be driven by an oscillating movement.

En plus de l'appareil de lisage 17 et du bloc d'électro-aimants 19 porté par le châssis oscillant 20-21, le dispositif de commande 15 comprend encore une série de sélecteurs 23 en nombre égal à celui des lames de la ratière, l'ensemble de ces sélecteurs étant porté à basculement libre par un axe 24 dont les extrémités sont fixées aux bras 20 du châssis précité. Chaque sélecteur 23 est muni d'une plaquette métallique 23' fixée à pivotement et destinée à coopérer avec les pôles de l'électro-aimant 19a qui lui correspond dans le bloc 19, étant observé qu'un ressort 25 (fig.4) tend à écarter ledit sélecteur des pôles précités. La partie inférieure de chacun des sélecteurs 23 est profilée pour déterminer une sorte de nez 23a propre à agir, ainsi qu'on le verra plus loin, sur l'extrémité correspondante ou queue des crochets basculants 11 ou 12, tandis qu'il comporte latéralement un talon 23b qui coopère avec une butée fixe 26a prévue sur l'une de deux traverses 26 fixées dans le carter A au-dessous du point le plus bas de la course oscillante du bloc 19.In addition to the reading device 17 and the block of electromagnets 19 carried by the oscillating frame 20-21, the control device 15 also comprises a series of selectors 23 in number equal to that of the blades of the dobby, all of these selectors being brought to free tilting by a pin 24 whose ends are fixed to the arms 20 of the aforementioned chassis. Each selector 23 is provided with a metal plate 23 'pivotally attached and intended to cooperate with the poles of the electromagnet 19a which corresponds to it in the block 19, it being observed that a spring 25 (fig. 4) tends to move said selector away from the aforementioned poles. The lower part of each of the selectors 23 is profiled to determine a kind of nose 23a suitable for acting, as will be seen below, on the corresponding end or tail of the tilting hooks 11 or 12, while it comprises laterally a heel 23b which cooperates with a fixed stop 26a provided on one of two crosspieces 26 fixed in the casing A below the lowest point of the oscillating travel of the block 19.

Le fonctionnement du dispositif de commande sus-décrit ressort de l'examen des fig. 4 à 7, mais pour l'exposer de manière logique l'on se référera tout d'abord à fig. 1 où l'on a supposé que le châssis oscillant 20-21 se trouvait à la position haute de sa course; l'électro-aimant 19a du bloc 19 qui correspond au sélecteur 23 envisagé est excité, de telle sorte que celui-ci est appliqué contre les pôles dudit électro-aimant, à l'encontre de l'action de son ressort 25. Les deux ressorts 16 maintiennent les crochets basculants 11 et 12 en appui contre la partie inférieure des butées fixes 26.The operation of the above-described control device appears from the examination of FIGS. 4 to 7, but to expose it logically we will first refer to fig. 1 where it has been assumed that the oscillating chassis 20-21 is in the high position of its travel; the electromagnet 19a of block 19 which corresponds to the selector 23 envisaged is excited, so that it is applied against the poles of said electromagnet, against the action of its spring 25. The two springs 16 hold the tilting hooks 11 and 12 in abutment against the lower part of the fixed stops 26.

Il convient également d'observer au préalable le diagramme des mouvements de fig. 8 dans lequel la ligne 1 correspond au déplacement saccadé de l'arbre 1 tandis qu'en ligne Il apparaît le déplacement oscillant de l'arbre 22 et du châssis 20-21. On peut constater que l'arbre 1 entame une rotation de 180° lorsque le châssis 20-21 arrive en fin de course inférieure. Bien entendu les déplacements verticaux du sélecteur 23 sont liés à ceux du châssis 20-21, son débattement angulaire apparaissant à la ligne III du diagramme; l'on peut voir que ce sélecteur 23 vient normalement coller contre l'électro-aimant 19a lorsque le châsis précité arrive en position haute. On remarquera enfin que la commande électrique des électro-aimants du bloc 19 intervient (ligne IV) au moment où le châssis 20-21 entame sa course ascendante.It is also advisable to observe beforehand the diagram of the movements of fig. 8 in which the line 1 corresponds to the jerky displacement of the shaft 1 while in line It appears the oscillating displacement of the shaft 22 and the chassis 20-21. It can be seen that the shaft 1 begins to rotate 180 ° when the chassis 20-21 reaches the lower end of travel. Of course the vertical movements of the selector 23 are linked to those of the chassis 20-21, its angular movement appearing at line III of the diagram; we can see that this selector 23 normally sticks against the electromagnet 19a when the aforementioned frame arrives in the high position. Finally, it will be noted that the electrical control of the electromagnets of the block 19 intervenes (line IV) when the chassis 20-21 begins its upward stroke.

Partant donc de la position représentée en fig. 1 (point 0 de fig. 8), on vérifie qu'au cours de la rotation de l'arbre 1 le châssis oscillant s'abaisse en direction des crochets 11 et 12 (fig. 4) et que l'électro-aimant 19a, maintenu excité, retient le sélecteur 23 à la position collée de sorte que le nez 23a de celui-ci vient porter contre la queue du crochet 11 qui est ainsi repoussé. Le basculement de ce crochet 11 à l'encontre de son ressort 16 provoque l'extraction du bec 11 a hors de l'entaille 3a du plateau 3; le cliquet 4 est libéré et bascule donc sous l'effet de son ressort 10 pour engager son bec 4a dans l'encoche 9a du disque 9 qui se trouvait disposée immédiatement en vis-à-vis. L'excentrique 2 est alors rendu angulairement solidaire de l'arbre 1 à travers le plateau 3, le cliquet 4 et le disque 9, de sorte que dès que l'arbre 1 entame une nouvelle rotation de 180°, la bielle 5 considérée est actionnée et manoeuvre donc le levier de tirage 8 et le cadre de lisses associé à celui-ci (ligne V du diagramme de fig. 8).Starting therefore from the position shown in fig. 1 (point 0 in fig. 8), it is checked that during the rotation of the shaft 1 the oscillating frame is lowered in the direction of the hooks 11 and 12 (fig. 4) and that the electromagnet 19a , kept excited, retains the selector 23 in the glued position so that the nose 23a thereof comes to bear against the tail of the hook 11 which is thus pushed back. The tilting of this hook 11 against its spring 16 causes the extraction of the spout 11a out of the notch 3a of the plate 3; the pawl 4 is released and therefore tilts under the effect of its spring 10 to engage its spout 4a in the notch 9a of the disc 9 which was placed immediately opposite. The eccentric 2 is then made angularly integral with the shaft 1 through the plate 3, the pawl 4 and the disc 9, so that as soon as the shaft 1 begins a new rotation of 180 °, the connecting rod 5 considered is actuated and therefore operates the pull lever 8 and the heald frame associated therewith (line V of the diagram in fig. 8).

En fin de déplacement angulaire de l'abre 1, le cliquet 4 se trouve disposé en vis-à-vis du bec 12a du crochet 12, lequel bec s'est élastiquement engagé dans l'entaille 3a. A ce moment et si comme on l'a supposé l'électro-aimant 19a est toujours alimenté, le sélecteur 23 reste collé contre les pôles dudit électro-aimant, de telle sorte que lors de l'abaissement du châssis 20-21 ce sélecteur va à nouveau actionner le crochet 11; cet actionnement n'aura toutefois aucun effet puisqu'à ce moment le cliquet 4 ne peut être actionné que par le crochet 12. Ce dernier n'étant pas commandé, le bec 12a reste engagé dans l'entaille 3a et retient donc immobile le plateau 3 et l'excentrique 2. Le levier de tirage 8 reste à la position antérieure correspondant à la levée du cadre de lisses, comme montré sur le diagramme.At the end of the angular movement of the shaft 1, the pawl 4 is placed opposite the beak 12a of the hook 12, which beak is elastically engaged in the notch 3a. At this time and if, as has been assumed, the electromagnet 19a is still energized, the selector 23 remains stuck against the poles of said electromagnet, so that when the chassis is lowered 20-21 this selector will again activate the hook 11; this actuation will however have no effect since at this time the pawl 4 can only be actuated by the hook 12. The latter not being controlled, the spout 12a remains engaged in the notch 3a and therefore retains the plate immobile 3 and the eccentric 2. The pull lever 8 remains in the anterior position corresponding to the lifting of the heald frame, as shown in the diagram.

Par contre si pour la période suivante, l'appareil de lisage 17 a cessé d'exciter l'électro-aimant 19a, le sélecteur 23 décolle de celui-ci au cours de la course ascendante du châssis 20-21 (fig. 5), si bien que lorsque ce châssis effectue sa course descendante suivant fig. 6, le nez 23a vient actionner la queue du crochet 12. Le bec 12a est extrait de l'entaille 3a et le cliquet 4 introduit élastiquement son bec 4a dans l'encoche correspondante 9a du disque 9. Par suite de l'entraînement de l'excentrique 2 ainsi opéré, la bielle 5 revient à sa position initiale et le cadre de lisses correspondant se déplace.On the other hand, if for the following period, the reading device 17 has ceased to excite the electromagnet 19a, the selector 23 takes off therefrom during the upward stroke of the chassis 20-21 (fig. 5) , so that when this chassis performs its downward stroke according to fig. 6, the nose 23a actuates the tail of the hook 12. The spout 12a is extracted from the notch 3a and the pawl 4 elastically introduces its spout 4a into the corresponding notch 9a of the disc 9. As a result of the drive of the eccentric 2 thus operated, the rod 5 returns to its initial position and the corresponding heald frame moves.

Au cours de la course ascendante du châssis 20-21 le talon 23b du sélecteur 23 vient porter contre la butée 26a (fig. 7), de telle sorte que ce sélecteur est automatiquement commandé au basculement de manière à venir coller contre les pôles de l'électro-aimant 19a. Dans ces conditions il est clair que ce sélecteur pourra être ou non retenu par l'électro-aimant en fonction de la commande désirée pour la bielle.During the upward stroke of the chassis 20-21 the heel 23b of the selector 23 comes to bear against the stop 26a (fig. 7), so that this selector is automatically controlled to tilt so as to come to stick against the poles of the electromagnet 19a. Under these conditions it is clear that this selector may or may not be retained by the electromagnet according to the desired command for the connecting rod.

On comprend finalement que la disposition suivant t'inventiez permet la commande de la ratière sans que les électro-aimants renfermés par le bloc 19 aient à exercer un effort supérieur à celui exercé par le ressort de rappel 25 de chaque sélecteur 23.It is finally understood that the arrangement according to the invention allows the control of the dobby without the electromagnets enclosed by the block 19 having to exert a force greater than that exerted by the return spring 25 of each selector 23.

Fig. illustre schématiquement l'application du dispositif de commande suivant l'invention à une ratière du type à balances. On rappelera que dans une telle ratière chacun des leviers de tirage 8 associés aux cadres de lisses est attelé à un levier ou demi-balancier 27 qui pivote en 28 et qui porte à articulation une balance 29. Chaque balance 29 est formée par une sorte de levier double pourvu à chacune de ses extrémités d'un crochet d'attelage 30, respectivement 31. Contre le talon arrière de chaque crochet 30, 31 de la balance 29 vient cycliquement prendre appui une traverse 32, respectivement 33, ces deux traverses étant montées sur un flasque 34 animé d'un mouvement oscillant.Fig. schematically illustrates the application of the control device according to the invention to a dobby of the type with scales. It will be recalled that in such a dobby each of the pulling levers 8 associated with the heald frames is coupled to a lever or half-balance 27 which pivots at 28 and which carries a balance 29 at articulation. Each balance 29 is formed by a sort of double lever provided at each of its ends with a coupling hook 30, respectively 31. Against the rear heel of each hook 30, 31 of the balance 29 comes to rest cyclically on a cross member 32, respectively 33, these two cross members being mounted on a flange 34 animated by an oscillating movement.

En avant de chaque balance 29 sont prévus deux axes fixes 35 sur chacun desquels pivote un crochet de retenue 36, 37 destiné à coopérer avec le crochet d'attelage 30, respectivement 31 de la balance. Un ressort 38 tend à maintenir les crochets 36 et 37 à une position extérieure pour laquelle ils sont en mesure de venir s'enclencher avec les crochets 30 et 31, des butées 39 limitant le déplacement angulaire desdits crochets 36 et 37.In front of each balance 29 are provided two fixed axes 35 on each of which pivots a retaining hook 36, 37 intended to cooperate with the coupling hook 30, respectively 31 of the balance. A spring 38 tends to hold the hooks 36 and 37 in an external position for which they are able to come to engage with the hooks 30 and 31, stops 39 limiting the angular displacement of said hooks 36 and 37.

Le dispositif suivant l'invention comprend, comme dans la forme de réalisation précédente, un châssis 40 fixé sur un arbre 41 animé d'un mouvement oscillant. Ce châssis supporte un bloc 42 identique à celui référencé 19, ainsi qu'un axe 43 sur lequel sont montés fous un nombre de sélecteurs 44 égal à celui des électro-aimants 42a du bloc précité. Un ressort 45 tend à maintenir chaque sélecteur 44 en contact avec une butée fixe 46.The device according to the invention comprises, as in the previous embodiment, a frame 40 fixed on a shaft 41 driven by an oscillating movement. This chassis supports a block 42 identical to that referenced 19, as well as an axis 43 on which are mounted idle a number of selectors 44 equal to that of the electromagnets 42a of the aforementioned block. A spring 45 tends to keep each selector 44 in contact with a fixed stop 46.

Comme mieux illustré en fig. 10 à 13, chaque sélecteur 44 est pourvu de deux prolongements opposés 44a, respectivement 44b, afin d'assurer l'actionnement des crochets de retenue 36 et 37, pourvus à cet effet d'un bec 36a, respectivement 37a; il convient d'observer que ces becs 36a et 37a sont disposés sur les crochets 36 et 37 en arrière des pivots ou axes fixes 35, de telle sorte que lorsque lesdits crochets sont repoussés par le bec qui leur est associé, leur partie utile, c'est-à-dire leur extrémité qui est destinée à coopérer avec le crochet d'attelage correspondant 30, 31, est déplacée vers l'extérieur en s'éloignant donc de ce dernier crochet.As best illustrated in fig. 10 to 13, each selector 44 is provided with two opposite extensions 44a, respectively 44b, in order to actuate the retaining hooks 36 and 37, provided for this purpose with a spout 36a, respectively 37a; it should be observed that these nozzles 36a and 37a are arranged on the hooks 36 and 37 behind the pivots or fixed axes 35, so that when said hooks are pushed back by the spout which is associated with them, their useful part, that is to say their end which is intended to cooperate with the corresponding towing hook 30, 31, is moved outwards, thus moving away from the latter hook.

Le fonctionnement sera très succinctement exposé en se référant aux fig. 10 à 13 et à fig. 14 qui montre le diagramme des mouvements pour une armure particulière. Ce diagramme est analogue à celui de fig. 8 en ce sens que:

  • - la ligne 1 montre le déplacement alternatif du flasque 34 et l'actionnement des deux traverses 32 et 33 qui agissent sur la balance 29;
  • - la ligne Il montre le déplacement alternatif de l'arbre 41 qui porte le châssis 40 et le bloc 42;
  • - la ligne III montre le débattement angulaire du sélecteur 44 envisagé (le point bas correspondant au collage contre les pôles de l'électro-aimant 42a);
  • - et la ligne IV montre l'alimentation de cet électro-aimant 42a (le trait continu correspondant à l'alimentation);
The operation will be very briefly explained with reference to figs. 10 to 13 and fig. 14 which shows the movement diagram for a particular armor. This diagram is similar to that of FIG. 8 in the sense that:
  • - Line 1 shows the alternating movement of the flange 34 and the actuation of the two cross members 32 and 33 which act on the scale 29;
  • - Line II shows the reciprocating movement of the shaft 41 which carries the chassis 40 and the block 42;
  • - Line III shows the angular movement of the selector 44 envisaged (the low point corresponding to bonding against the poles of the electromagnet 42a);
  • - And line IV shows the supply of this electromagnet 42a (the solid line corresponding to the supply);

En fig. 10 le châssis 40 est représenté en course descendante avec le sélecteur 44 collé contre l'électro-aimant 42a. Le prolongement 44b échappe au bec 37a du crochet de retenue 37 qui n'est donc pas manceuvré, si bien que le crochet d'attelage inférieur 31 est pris en assurant la commande du levier 8 et du cadre de lisses correspondant. Fig. 11 fait ressortir que de la même manière les crochets supérieurs 36 et 30 restent immobiles lorsque le sélecteur 44, toujours retenu contre l'électro-aimant 42a supposé alimenté, se déplace vers le haut avec son prolongement 44a en position escamotée par rapport au bec 36a.In fig. 10 the chassis 40 is shown in downward travel with the selector 44 glued against the electromagnet 42a. The extension 44b escapes the spout 37a of the retaining hook 37 which is therefore not manceuvé, so that the lower coupling hook 31 is taken while ensuring the control of the lever 8 and of the corresponding heald frame. Fig. 11 shows that in the same way the upper hooks 36 and 30 remain stationary when the selector 44, still retained against the electromagnet 42a assumed to be powered, moves upward with its extension 44a in the retracted position relative to the spout 36a .

Par contre en fig. 12 le sélecteur 44 a été supposé ramené en position non collée par le ressort 45, l'électro-aimant n'étant pas alimenté; le prolongement 44b vient, au cours de la course descendante du châssis 40 et du sélecteur 44, porter contre le bec 37a du crochet de retenue 37. Dans ces conditions celui-ci bascule vers l'intérieur et échappe de la sorte au crochet d'attelage 31 de la balance 29.By cons in fig. 12 the selector 44 has been assumed to be returned to the position not bonded by the spring 45, the electromagnet not being supplied; the extension 44b comes, during the downward stroke of the chassis 40 and of the selector 44, to bear against the spout 37a of the retaining hook 37. Under these conditions the latter rocks inwards and thus escapes from the hook balance hitch 31.

La situation est la même en fig. 13 où le sélecteur 44, non retenu par l'électro-aimant 42a, est représenté lors de la course ascendante du châssis 40, afin de repousser le bec 36a et d'escamoter le crochet supérieur 36 par rapport au crochet d'attelage 30.The situation is the same in fig. 13 where the selector 44, not retained by the electromagnet 42a, is shown during the upward stroke of the chassis 40, in order to push the spout 36a and to retract the upper hook 36 relative to the coupling hook 30.

Si l'on examine fig. 12 et 13 ainsi que fig. 9 qui montre les pièces mobiles à une position moyenne, on peut voir que lors du mouvement de retour du châssis oscillant 40 avec le sélecteur 44 en position décollée par rapport à l'électro-aimant 42a, la partie profilée 44c du bord de ce sélecteur qui coopère avec la butée fixe 46 assure automatiquement le rappel du sélecteur en position collée contre les pôles de l'électro-aimant 42a, si bien que ce dernier peut, si le programme d'armure l'impose, retenir le sélecteur précité.If we look at fig. 12 and 13 as well as fig. 9 which shows the moving parts at a medium position, it can be seen that during the return movement of the oscillating frame 40 with the selector 44 in the detached position relative to the electromagnet 42a, the profiled part 44c of the edge of this selector which cooperates with the fixed stop 46 automatically returns the selector to the position glued against the poles of the electromagnet 42a, so that the latter can, if the armor program requires it, retain the aforementioned selector.

On observera que si la mobilité du bloc d'électro-aimants et des sélecteurs permet d'opérer le rappel de ces derniers à la position collée grâce à des butées 26 rigidement fixées dans le carter, l'on peut en certain cas avoir recours à des butées mobiles convenanblement commandées.It will be observed that if the mobility of the block of electromagnets and the selectors makes it possible to bring the latter back to the glued position by means of stops 26 rigidly fixed in the casing, one can in certain cases have recourse to mobile stops suitably controlled.

Claims (4)

1. Electro-magnetic device for controlling weaving dobbies with blades, of the type comprising a reading apparatur for reading the weaving programme 17 connected to electro-magnets 19a, 42a in order to manoeuvre a pair of hooks 11-12, 36-37 ensuring control of an amplifier system provided at the level of each of the blades, characterized in that the assembly 19, 42 of the electro-magnets 19a, 42a is fixed on a single chassis 20-21, 40 which is animated by an oscillating movement connected with that of the dobby and which bears at the level of each blade a selector 23, 44 formed by a rocking lever articulated on a pin 24,43 of said chassis and associated with elastic means 25, 45 tending to move it away from the poles of attraction of the corresponding electro-magnet 19a, 42a, which selector, thus animated by a reciprocating displacement which cyclically moves it towards and away from the hooks 11-12, 36-37 for actuating the relevant pair, cooperates with a stop 26a, 46 which re-applies it against the above-mentioned poles when ist moves away from the hooks mentioned above whilst it is spaced apart from said poles.
2. Device according to Claim 1 for controlling a dobby of the rotating type, characterized in that each selector 23 comprises on the one hand an axial nose element 23a which selectively bears against a shank of one or the other of the two hooks 11 or 12, and on the other hand a lateral heel element 23b which cooperates with the stop 26a, 46.
3. Device according to Claim 1 for controlling a dobby of the type with double swinging levers, characterized in that each selector 44, disposed between the two corresponding retaining hooks 36 and 37, presents on the one hand two opposite extensions 44a, 44b adapted to repel or to avoid a nose 36a, 37a of the corresponding hook, and on the other hand an edge 44c sectioned to cooperate with the stop 46.
4. Device according to any one of Claims 1 to 3, characterized in that the stop 46 is rigidly fixed on the housing of the dobby.
EP82420115A 1981-11-05 1982-08-06 Electromagnetic device for operating dobbies Expired EP0079843B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8121106A FR2515703B1 (en) 1981-11-05 1981-11-05
FR8121106 1981-11-05

Publications (2)

Publication Number Publication Date
EP0079843A1 EP0079843A1 (en) 1983-05-25
EP0079843B1 true EP0079843B1 (en) 1985-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420115A Expired EP0079843B1 (en) 1981-11-05 1982-08-06 Electromagnetic device for operating dobbies

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US (1) US4461325A (en)
EP (1) EP0079843B1 (en)
JP (1) JPS5891844A (en)
DE (1) DE3263898D1 (en)
ES (1) ES515231A0 (en)
FR (1) FR2515703B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101275321B (en) * 2006-12-21 2011-08-03 施托布利法韦日公司 Electromagnetic block and device for electromagnetic selection of heald frame motion
CN106987959A (en) * 2017-05-27 2017-07-28 江苏金龙科技股份有限公司 The suction iron swing arm structure of revolving dobby

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CS233367B1 (en) * 1982-07-20 1985-03-14 Josef Blazek Apparatus for control of pawls,coupling disks of excentres in dobby machines
FR2540524B1 (en) * 1983-02-07 1985-07-26 Staubli Sa Ets SYNCHRONIZED ROTARY RATIERE FOR WEAVING
IT1188533B (en) * 1986-01-31 1988-01-14 Fimtessile CONTROL MECHANISM OF SWIVEL CONNECTIONS SWITCHES OF LICCI PAINTINGS IN A ROTARY DOBBY
US5018556A (en) * 1988-04-01 1991-05-28 Murata Kikai Kabushiki Kaisha Dobby loom with a magnetically operated hook selector
CH679870A5 (en) * 1988-10-07 1992-04-30 Walter Kleiner
JPH0268905U (en) * 1988-11-14 1990-05-24
FR2662710B1 (en) * 1990-05-31 1992-08-28 Staubli Sa Ets ELECTRO-MAGNETIC UNIT FOR THE CONTROL OF RATIERES AND OTHER WEAVING MECHANICS.
FR2672308B1 (en) * 1991-02-01 1993-05-07 Staubli Sa Ets ARMOR MECHANICS FOR CROWD FORMATION ON WEAVING MACHINES.
IT1251107B (en) * 1991-07-25 1995-05-04 Costantino Vinciguerra REFINEMENTS IN A HIGH-SPEED ROTARY DOBBY
IT1254219B (en) * 1992-02-25 1995-09-14 ECCENTRIC PERFECTED FOR ROTARY DOBBY
JP3425983B2 (en) * 1992-12-25 2003-07-14 株式会社山田ドビー Dobby
IT1265200B1 (en) * 1993-11-19 1996-10-31 Nuovo Pignone Spa PERFECTED SYSTEM OF ELECTROMAGNETS-PICKING RODS FOR THE DEVICE OF A ROTARY RACK
US5735315A (en) * 1996-09-11 1998-04-07 A.E. Petsche Company, Inc. Wire loom dobby
FR2757884B1 (en) * 1996-12-31 1999-02-19 Staubli Sa Ets ELECTROMAGNETIC SELECTION ACTUATION DEVICE FOR THE CONTROL OF STRIPES AND OTHER WEAVING MECHANICS
FR2757882B1 (en) * 1996-12-31 1999-02-19 Staubli Sa Ets ROTARY RATIERE AND WEAVING MACHINE EQUIPPED WITH SUCH A RATIERE
SE519974C2 (en) * 2002-06-03 2003-05-06 Cemvac System Ab Device for dispensing a monomer to a polymer-filled mixing device for preparing bone cement
FR2842538B1 (en) 2002-07-16 2004-10-29 Staubli Sa Ets ROTARY RATIERE FOR WEAVING, AND WEAVING EQUIPMENT PROVIDED WITH SUCH A RAIL
DE102005059911B3 (en) * 2005-12-15 2007-02-08 Groz-Beckert Kg Heddle frame drive unit for loom, includes non circular-gearing of varying velocity ratio, with shaft compensating fluctuations in loading
EP2014805B1 (en) * 2007-07-12 2011-12-14 Groz-Beckert KG Control device for the coupling of a dobby
KR20160121080A (en) * 2015-04-10 2016-10-19 현대자동차주식회사 Guid bumper with electromagnet for tail gate of vehicles

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FR1503816A (en) * 1966-10-07 1967-12-01 Staubli Geb & Co Double-lift dobby skills
CH485887A (en) * 1967-04-27 1970-02-15 Serra Xaus Sergio Double-lift beam dobby
CH543127A (en) * 1973-01-10 1973-10-15 Patax Trust Reg Device for optionally holding a reciprocatingly driven control element of a textile machine in one of its end positions
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FR2392147A1 (en) * 1977-05-27 1978-12-22 Staubli Sa Ets IMPROVEMENTS TO DOUBLE LIFT RATIERS WITH BALANCES AND RETAINING HOOKS
DE2741199C3 (en) * 1977-07-21 1981-08-13 Gebrüder Sulzer AG, 8401 Winterthur Coupling for controlling the shafts of a weaving machine or the guide rail of a warp knitting machine
FR2428693A1 (en) * 1978-06-16 1980-01-11 Staubli Sa Ets IMPROVEMENTS TO TRIMMING DEVICES FOR RAILWAYS OR OTHER WEAVING MECHANICS
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DE2904367C3 (en) * 1979-02-06 1982-01-07 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Electromagnetic Jacqard control device
FR2478682A1 (en) * 1980-03-20 1981-09-25 Staubli Sa Ets IMPROVEMENTS IN RATIO OF THE ROTARY TYPE FOR WEAVING
EP0047791B1 (en) * 1980-09-12 1984-12-19 GebràœDer Sulzer Aktiengesellschaft Coupling system for operating the heald frames in a loom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101275321B (en) * 2006-12-21 2011-08-03 施托布利法韦日公司 Electromagnetic block and device for electromagnetic selection of heald frame motion
CN106987959A (en) * 2017-05-27 2017-07-28 江苏金龙科技股份有限公司 The suction iron swing arm structure of revolving dobby

Also Published As

Publication number Publication date
JPH0223611B2 (en) 1990-05-24
EP0079843A1 (en) 1983-05-25
US4461325A (en) 1984-07-24
ES8306195A1 (en) 1983-06-01
DE3263898D1 (en) 1985-07-04
FR2515703A1 (en) 1983-05-06
FR2515703B1 (en) 1983-12-09
JPS5891844A (en) 1983-05-31
ES515231A0 (en) 1983-06-01

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