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EP0108026A1 - Leveling device for a negative cam dobby - Google Patents

Leveling device for a negative cam dobby Download PDF

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Publication number
EP0108026A1
EP0108026A1 EP83420168A EP83420168A EP0108026A1 EP 0108026 A1 EP0108026 A1 EP 0108026A1 EP 83420168 A EP83420168 A EP 83420168A EP 83420168 A EP83420168 A EP 83420168A EP 0108026 A1 EP0108026 A1 EP 0108026A1
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EP
European Patent Office
Prior art keywords
levers
pawls
oscillating
leveling device
frames
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83420168A
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German (de)
French (fr)
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EP0108026B1 (en
Inventor
Jean-Paul Froment
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Staubli Faverges SCA
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Staubli Faverges SCA
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Publication of EP0108026A1 publication Critical patent/EP0108026A1/en
Application granted granted Critical
Publication of EP0108026B1 publication Critical patent/EP0108026B1/en
Expired legal-status Critical Current

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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D03C5/005Leveling mechanisms
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00Dobbies
    • D03C1/14Features common to dobbies of different types
    • D03C1/142Leveling mechanisms

Definitions

  • the present invention relates to the armor mechanics for forming the crowd on the looms and it relates more particularly to the negative type cam mechanics, that is to say those in which the heald frames are moved. positively, against elastic return means which ensure their return to a rest position, by oscillating levers controlled using suitably profiled rotating cams.
  • the invention mainly intends to remedy, by ensuring that it is the mechanics itself which takes charge of the leveling effort.
  • the invention essentially consists in associating with each of the oscillating levers of the mechanics a loaded pawl capable, by tilting under the effect of an operating member common to all of the pawls, to come to bear against the edge of the corresponding lever and of cooperate with a retaining stop formed on the abovementioned edge when this lever reaches an angular end-of-travel position during the operation of the mechanism.
  • the armor mechanics partially shown in fig. 1 comprises a casing 1 inside which rotates a shaft 2 on which a series of cams or eccentrics are wedged 3 for the actuation of an equal number of oscillating levers 4.
  • These levers 4 are mounted side by side on an axis 5 oriented parallel to the shaft 2 and each of them carries at its lower end a roller 6; on the opposite end of each oscillating lever 4 is attached a cable 7 at the end of which is fixed one of the heddle frames 8 which elastic means, shown in the form of springs 9, tend to lower in the direction of the ground.
  • the leveling device comprises an axis 10 oriented parallel to the shaft 2 so as to form a pivot for a series of pawls 11, in number equal to that of the oscillating levers 4.
  • Each pawl 11 is connected by a spring 12 to a small arm 13 made angularly integral with a lower shaft 14 common to all of said arms 13.
  • This shaft 14 is actuated angularly using a control member 15 accessible from outside the casing 1, which member cooperates selectively with one or the other of two positioning notches 16 and 17. It will also be observed that the edge of each oscillating lever which is turned in the direction of the pawls 11 is profiled or cut to present a stop 4a.
  • control member 15 is in the orientation illustrated in FIG. 1 for which it is retained by the notch 16.
  • the pawls 11 are arranged in such a way that they cannot interfere with the oscillating levers 4.
  • All the frames are thus successively brought into the high position by the armor mechanics itself, without requiring on the part of the operator any other effort than that resulting from the simple momentary deformation of the connecting springs 12 to pass the pawls 11 from one position to another.
  • the operation of the member 15 can also occur at any time during the normal operation of the mechanics.
  • the stops 4a are positioned on the levers 4 so that the engagement of the pawls 11 as described above occurs very slightly before said levers reach their full lift stroke. Under these conditions, the rotation of the shaft 2 and of the cams 3 still impart a very slight oscillation to the levers 4, thereby creating a clearance clearance between the pawls 11 and the stops 4a, a clearance which allows the removal of said pawls under the action of the above-mentioned cams as soon as the operator has returned the member 15 to the initial position of FIG. 1. The levers 4 are then released and the armor mechanics can resume normal operation.
  • the axis 10 which constitutes the common pivot of the set of pawls 11 is associated with a mechanism capable of ensuring its transverse movement over a very short distance d. Therefore the pawls 11 act in the manner of pushers with respect to the oscillating levers 11, so that the latter all rock around the axis 5 and that the periphery of their roller 6 deviates from the periphery of the cams 3 from a distance of. It is understood that if this distance is greater than the above clearance clearance, the set of levers 4 is at an absolutely identical angular position, so that the heald frames all affect the same height.
  • the mechanism intended to operate the transverse movement of the axis 10 is capable of incorporating a reduction system, as was assumed in FIG. 5 and 6 which illustrate two embodiments of such a mechanism.
  • the axis 10 is provided with two ends 10a very slightly offset from the central part which carries the pawls 11, so that the angular displacement imparted to said axis using an operating member such as 18 causes the desired transverse displacement d.
  • each of the ends, here referenced 10b, of the axis 10 is profiled to slide in fixed transverse guides 19 when the operator maneuvers in rotation screws or similar members 20.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Looms (AREA)

Abstract

A chaque levier oscillant (4) est associé un cliquet basculant (11) propre, sous l'effet d'un organe de manoeuvre (15) commun à tous les cliquets, à venir élastiquement porter contre le bord du levier (4) considéré et à coopérer avec une butée de retenue (4a) ménagée sur celui-ci. Dans ces conditions c'est la mécanique d'armure elle-même qui fournit l'effort de nivellement.Each oscillating lever (4) is associated with a clean tilting pawl (11), under the effect of an operating member (15) common to all the pawls, to come elastically to bear against the edge of the lever (4) considered and to cooperate with a retaining stop (4a) formed thereon. Under these conditions it is the armor mechanics itself which provides the leveling effort.

Description

Dispositif de nivellement pour mécaniques d'armure à cames du type négatif -Leveling device for negative type cam armor mechanics -

La présente invention a trait aux mécaniques d'armure pour la formation de la foule sur les métiers à tisser et elle concerne plus particulièrement les mécaniques à cames du type négatif, c'est-à-dire celles dans lesquelles les cadres de lisses sont déplacés positivement, à l'encontre de moyens élastiques de rappel qui assurent leur retour à une position de repos, par des leviers oscillants commandés à l'aide de cames tournantes convenablement profilées.The present invention relates to the armor mechanics for forming the crowd on the looms and it relates more particularly to the negative type cam mechanics, that is to say those in which the heald frames are moved. positively, against elastic return means which ensure their return to a rest position, by oscillating levers controlled using suitably profiled rotating cams.

On sait que pour certaines interventions sur le métier, notamment lors du montage initial de la nappe de fils de chaîne, il est nécessaire d'amener tous les cadres de lisses au même niveau. On a proposé différents dispositifs pour cette opération de nivellement, ces dispositifs agissant soit directement sur les leviers oscillants qui se trouvent en position de repos de façon à les amener à la position de travail à l'encontre des moyens élastiques de rappel, soit sur l'axe qui assure l'articulation de l'ensemble des leviers oscillants en vue de le déplacer tranversalement pour permettre à tous lesdits leviers de basculer en position de repos en dépit de leur appui contre les cames. On conçoit que dans l'un et l'autre cas il s'agit de systèmes relativement complexes qui au surplus mettent en oeuvre une puissance importante par suite de l'action des moyens élastiques de rappel auxquels vient s'ajouter la tension des fils de chaîne.It is known that for certain interventions on the trade, in particular during the initial assembly of the ply of warp threads, it is necessary to bring all the heald frames to the same level. Various devices have been proposed for this leveling operation, these devices acting either directly on the oscillating levers which are in the rest position so as to bring them to the working position against the elastic return means, or on the 'axis which ensures the articulation of all the oscillating levers in order to move it transversely to allow all of said levers to switch to the rest position despite their support against the cams. It will be understood that in both cases these are relatively complex systems which, moreover, use a large power as a result of the action of elastic return means to which is added the tension of the wires. chain.

C'est à ces inconvénients que l'invention entend principalement remédier, en faisant en sorte que ce soit la mécanique elle-même qui prenne en charge l'effort de nivellement.It is these drawbacks that the invention mainly intends to remedy, by ensuring that it is the mechanics itself which takes charge of the leveling effort.

L'invention consiste essentiellement à associer à chacun des leviers oscillants de la mécanique un cliquet chargé susceptible, moyennant basculement sous l'effet d'un organe de manoeuvre commun à l'ensemble des cliquets, de venir porter contre le bord du levier correspondant et de coopérer avec une butée de retenue ménagée sur le bord précité lorsque ce levier atteint une position angulaire de fin de course au cours du fonctionnement de la mécanique.The invention essentially consists in associating with each of the oscillating levers of the mechanics a loaded pawl capable, by tilting under the effect of an operating member common to all of the pawls, to come to bear against the edge of the corresponding lever and of cooperate with a retaining stop formed on the abovementioned edge when this lever reaches an angular end-of-travel position during the operation of the mechanism.

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 verticale illustrant l'agencement général d'un dispositif de nivellement établi conformément à l'invention.
  • Fig. 2 et 3 reproduisent fig. 1 à deux autres positions.
  • Fig. 4 est une coupe de détail à grande échelle illustrant la possibilité de faire disparaître le jeu de dégagement nécessaire au fonctionnement normal du dispositif de nivellement.
  • Fig. 5 et 6 montrent schématiquement deux formes de réalisation d'un mécanisme propre à l'obtention de l'action visée en fig. 4.
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 vertical section illustrating the general arrangement of a leveling device established in accordance with the invention.
  • Fig. 2 and 3 reproduce fig. 1 to two other positions.
  • Fig. 4 is a large-scale detail section illustrating the possibility of removing the clearance required for the normal operation of the leveling device.
  • Fig. 5 and 6 schematically show two embodiments of a mechanism suitable for obtaining the action referred to in FIG. 4.

La mécanique d'armure partiellement représentée en fig. 1 comprend un carter 1 à l'intérieur duquel tourne un arbre 2 sur lequel est calée une série de cames ou excentriques 3 pour l'actionnement d'un nombre égal de leviers oscillants 4. Ces leviers 4 sont montés côte à côte sur un axe 5 orienté parallèlement à l'arbre 2 et chacun d'eux porte à son extrémité inférieure un galet 6 ; sur l'extrémité opposée de chaque levier oscillant 4 est attaché un câble 7 en bout duquel est fixé l'un des cadres de lisses 8 que des moyens élastiques, figurés sous la forme de ressorts 9, tendent à abaisser en direction du sol.The armor mechanics partially shown in fig. 1 comprises a casing 1 inside which rotates a shaft 2 on which a series of cams or eccentrics are wedged 3 for the actuation of an equal number of oscillating levers 4. These levers 4 are mounted side by side on an axis 5 oriented parallel to the shaft 2 and each of them carries at its lower end a roller 6; on the opposite end of each oscillating lever 4 is attached a cable 7 at the end of which is fixed one of the heddle frames 8 which elastic means, shown in the form of springs 9, tend to lower in the direction of the ground.

Il s'agit de l'agencement classique d'une mécanique d'armure à cames du type négatif, de telle sorte qu'aucune explication plus détaillée n'est nécessaire. On conçoit sans peine que l'action de rappel exercée par les ressorts 9 assure l'application élastique des galets 6 contre les cames 3 de l'arbre 2, de telle sorte que lorsque ce dernier est animé d'un mouvement de rotation lesdites cames opèrent le basculement des différents leviers 4 suivant un programme qui dépend évidemment du calage mutuel des cames précitées sur l'arbre 2. Ce basculement engendre bien entendu le déplacement vertical des cadres 8 qui s'élèvent sous l'action des cames et qui s'abaissent sous l'effet des ressorts 9.This is the conventional arrangement of a negative type cam armor mechanic, so that no more detailed explanation is necessary. We can easily understand that the return action exerted by the springs 9 ensures the elastic application of the rollers 6 against the cams 3 of the shaft 2, so that when the latter is driven in a rotary movement said cams operate the tilting of the different levers 4 according to a program which obviously depends on the mutual setting of the above-mentioned cams on the shaft 2. This tilting naturally generates the vertical displacement of the frames 8 which rise under the action of the cams and which lower under the effect springs 9.

Le dispositif niveleur suivant l'invention comprend un axe 10 orienté parallèlement à l'arbre 2 de manière à former pivot pour une série de cliquets 11, en nombre égal à celui des leviers oscillants 4. Chaque cliquet 11 est relié par un ressort 12 à un petit bras 13 rendu angulairement solidaire d'un arbre inférieur 14 commun à tous lesdits bras 13. Cet arbre 14 est manoeuvré angulairement à l'aide d'un organe de commande 15 accessible depuis l'extérieur du carter 1, lequel organe coopère sélectivement avec l'un ou l'autre de deux crans de positionnement 16 et 17. On observera par ailleurs que le bord de chaque levier oscillant qui est tourné en direction des cliquets 11 est profilé ou découpé pour présenter une butée 4a.The leveling device according to the invention comprises an axis 10 oriented parallel to the shaft 2 so as to form a pivot for a series of pawls 11, in number equal to that of the oscillating levers 4. Each pawl 11 is connected by a spring 12 to a small arm 13 made angularly integral with a lower shaft 14 common to all of said arms 13. This shaft 14 is actuated angularly using a control member 15 accessible from outside the casing 1, which member cooperates selectively with one or the other of two positioning notches 16 and 17. It will also be observed that the edge of each oscillating lever which is turned in the direction of the pawls 11 is profiled or cut to present a stop 4a.

Lors du fonctionnement normal de la mécanique d'armure, l'organe de commande 15 se trouve à l'orientation illustrée en fig. 1 pour laquelle il est retenu par le cran 16. Les cliquets 11 sont disposés de manière telle qu'ils ne peuvent interférer avec les leviers oscillants 4.During normal operation of the armor mechanics, the control member 15 is in the orientation illustrated in FIG. 1 for which it is retained by the notch 16. The pawls 11 are arranged in such a way that they cannot interfere with the oscillating levers 4.

Par contre, lorsqu'on désire procéder au nivellement des cadres 8, il suffit de déplacer angulairement l'organe 15 en vue de l'amener à l'orientation de fig. 2 et 3 pour laquelle ledit organe est retenu par le cran 17. Par suite de la liaison assurée par les ressorts 12, les cliquets 11 viennent tout à coup s'appliquer élastiquement contre le bord des leviers oscillants 4, à la manière représentée en fig. 2. On conçoit dans ces conditions que dès qu'au cours de la rotation de l'arbre 2 les cames 3 actionnent les leviers 4 et les cadres 8 à la levée, la portée terminale du cliquet 11 correspondant à la came 3 qui est manoeuvrée vient s'enclencher au-dessous de la butée 4a du bras 4 envisagé (fig. 3), de telle sorte que ledit levier est retenu à la position haute avec son cadre 8.On the other hand, when it is desired to level the frames 8, it suffices to angularly move the member 15 in order to bring it to the orientation of FIG. 2 and 3 for which said member is retained by the notch 17. As a result of the connection provided by the springs 12, the pawls 11 suddenly apply elastically against the edge of the oscillating levers 4, in the manner shown in fig . 2. It is conceivable under these conditions that as soon as during of the rotation of the shaft 2 the cams 3 actuate the levers 4 and the frames 8 at the lifting, the end bearing of the pawl 11 corresponding to the cam 3 which is maneuvered engages below the stop 4a of the arm 4 envisaged (FIG. 3), so that said lever is retained in the high position with its frame 8.

Tous les cadres sont ainsi successivement amenés en position haute par la mécanique d'armure elle-même, sans nécessiter de la part de l'opérateur d'autre effort que celui résultant de la simple déformation momentanée des ressorts de liaison 12 pour faire passer les cliquets 11 d'une position à l'autre. La manoeuvre de l'organe 15 peut au surplus intervenir à un moment quelconque au cours du fonctionnement normal de la mécanique.All the frames are thus successively brought into the high position by the armor mechanics itself, without requiring on the part of the operator any other effort than that resulting from the simple momentary deformation of the connecting springs 12 to pass the pawls 11 from one position to another. The operation of the member 15 can also occur at any time during the normal operation of the mechanics.

Il convient d'observer que les butées 4a sont positionnées sur les leviers 4 de façon telle que l'enclenchement des cliquets 11 tel que ci-dessus exposé survient très légèrement avant que lesdits leviers atteignent leur course de levée totale. Dans ces conditions la rotation de l'arbre 2 et des cames 3 impartit encore une très faible oscillation aux leviers 4, en créant de la sorte un jeu de dégagement entre les cliquets 11 et les butées 4a, jeu qui permet le retrait desdits cliquets sous l'action des cames précitées dès que l'opérateur a ramené l'organe 15 à la position initiale de fig. 1. Les leviers 4 sont alors libérés et la mécanique d'armure peut reprendre son fonctionnement normal.It should be observed that the stops 4a are positioned on the levers 4 so that the engagement of the pawls 11 as described above occurs very slightly before said levers reach their full lift stroke. Under these conditions, the rotation of the shaft 2 and of the cams 3 still impart a very slight oscillation to the levers 4, thereby creating a clearance clearance between the pawls 11 and the stops 4a, a clearance which allows the removal of said pawls under the action of the above-mentioned cams as soon as the operator has returned the member 15 to the initial position of FIG. 1. The levers 4 are then released and the armor mechanics can resume normal operation.

Lorsque la mécanique est arrêtée à la position de nivellement suivant fig. 3, les leviers oscillants 4 dont le galet 6 est au contact de la partie à plus grand rayon de la came correspondante 3 se trouvent, par suite du jeu de dégagement sus-mentionné, à une orientation très légèrement différente de celle des leviers qui sont retenus par les cliquets 11. Dans la très grande majorité des cas cette différence très légère ne présente aucune importance pratique, mais lorsqu'il n'en va pas ainsi et qu'on désire procéder à des réglages très précis impliquant un nivellement absolument parfait des cadres de lisses, on peut avoir recours au système illustré en fig. 4.When the mechanics is stopped at the leveling position according to fig. 3, the oscillating levers 4, the roller 6 of which is in contact with the part with the greatest radius of the corresponding cam 3 are, as a result of the above-mentioned clearance clearance, in an orientation very slightly different from that of the levers which are retained by the pawls 11. In the vast majority of cases this very slight difference is of no practical importance, but when it is not so and we want proceed to very precise adjustments implying an absolutely perfect leveling of the heald frames, one can have recourse to the system illustrated in fig. 4.

Suivant ce système on associe à l'axe 10 qui constitue le pivot commun de l'ensemble des cliquets 11 un mécanisme propre à assurer son déplacement transversal sur une très courte distance d. De ce fait les cliquets 11 agissent à la manière de poussoirs vis-à-vis des leviers oscillants 11, si bien que ces derniers basculent tous autour de l'axe 5 et que la périphérie de leur galet 6 s'écarte de la périphérie des cames 3 d'une distance d'. On conçoit que si cette distance d'est supérieure au jeu de dégagement précité, l'ensemble des leviers 4 se trouve à une position angulaire absolument identique, de telle sorte que les cadres de lisses affectent tous la même hauteur.According to this system, the axis 10 which constitutes the common pivot of the set of pawls 11 is associated with a mechanism capable of ensuring its transverse movement over a very short distance d. Therefore the pawls 11 act in the manner of pushers with respect to the oscillating levers 11, so that the latter all rock around the axis 5 and that the periphery of their roller 6 deviates from the periphery of the cams 3 from a distance of. It is understood that if this distance is greater than the above clearance clearance, the set of levers 4 is at an absolutely identical angular position, so that the heald frames all affect the same height.

Bien évidemmant cette action sur les cliquets 11 n'est pas assurée par la mécanique elle-même et nécessite donc un effort manuel. Toutefois elle n'intervient que dans des cas exceptionnels ; par ailleurs la distance de poussée d est très réduite, de l'ordre de quelques dixièmes de millimètres seulement. De plus et surtout le mécanisme destiné à opérer le déplacement transversal de l'axe 10 est susceptible d'incorporer un système démultiplicateur, comme on l'a supposé en fig. 5 et 6 qui illustrent deux modes de réalisation d'un tel mécanisme. En fig. 5 l'axe 10 est pourvu de deux extrémités 10a très légèrement désaxées par rapport à la partie centrale qui porte les cliquets 11, de façon à ce que le déplacement angulaire imparti audit axe à l'aide d'un organe de manoeuvre tel que 18 provoque le déplacement transversal d désiré. En fig. 6 chacune des extrémités, ici référencées 10b, de l'axe 10 est profilée pour coulisser dans des guides transversaux fixes 19 lorsque l'opérateur manoeuvre en rotation des vis ou organes similaires 20.Obviously this action on the pawls 11 is not ensured by the mechanics itself and therefore requires manual effort. However, it only intervenes in exceptional cases; moreover, the thrust distance d is very small, of the order of only a few tenths of a millimeter. In addition and above all the mechanism intended to operate the transverse movement of the axis 10 is capable of incorporating a reduction system, as was assumed in FIG. 5 and 6 which illustrate two embodiments of such a mechanism. In fig. 5 the axis 10 is provided with two ends 10a very slightly offset from the central part which carries the pawls 11, so that the angular displacement imparted to said axis using an operating member such as 18 causes the desired transverse displacement d. In fig. 6 each of the ends, here referenced 10b, of the axis 10 is profiled to slide in fixed transverse guides 19 when the operator maneuvers in rotation screws or similar members 20.

On pourrait imaginer d'autres formes de réalisation. De la même manière la commande angulaire des cliquets 11 est susceptible d'être assurée de toute manière appropriée, le disposition incorporant les ressorts de liaison 12 n'ayant été prise en considération qu'à titre d'illustration.One could imagine other embodiments. In the same way the angular control of the pawls 11 is likely to be ensured in any suitable manner, the arrangement incorporating the connecting springs 12 having been taken into consideration only by way of illustration.

Claims (2)

1. Dispositif de nivellement pour mécaniques d'armure du type négatif dans lesquelles les leviers oscillants (4) attelés aux cadres de lisses (8) sont commandés, à l'encontre de moyens élastiques de rappel (4) associés auxdits cadres, à l'aide de cames tournantes (3) convenablement profilées, caractérisé en ce qu'il comprend une série, en nombre égal à celui des leviers oscillants, de cliquets chargés indépendants (11) susceptibles, moyennant basculement sous l'effet d'un organe de manoeuvre commun (15), de venir porter contre le bord du levier correspondant (4) et de coopérer avec une butée de retenue (4a) ménagée sur le bord précité lorsque ce levier atteint la position angulaire de fin de course au cours du fonctionnement de la mécanique.1. Leveling device for negative type armor mechanics in which the oscillating levers (4) coupled to the heald frames (8) are controlled, against elastic return means (4) associated with said frames, with the using suitably profiled rotating cams (3), characterized in that it comprises a series, in number equal to that of the oscillating levers, of independent loaded pawls (11) capable, by tilting under the effect of a common operation (15), to come to bear against the edge of the corresponding lever (4) and to cooperate with a retaining stop (4a) formed on the abovementioned edge when this lever reaches the angular end-of-travel position during the operation of the mecanic. 2. Dispositif suivant la revendication 1, caractérisé en ce que l'axe commun (10) qui supporte l'ensemble des cliquets (11) est susceptible d'être déplacé transversalement afin que ces derniers repoussent positivement les leviers oscillants (4) jusqu'à une position extrême pour laquelle ces leviers ne sont plus au contacts de la partie à plus grand rayon des cames tournantes (3).2. Device according to claim 1, characterized in that the common axis (10) which supports all of the pawls (11) is capable of being displaced transversely so that the latter positively push the oscillating levers (4) up to at an extreme position for which these levers are no longer in contact with the part with a larger radius of the rotating cams (3).
EP83420168A 1982-10-20 1983-10-19 Leveling device for a negative cam dobby Expired EP0108026B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8217843A FR2534936A1 (en) 1982-10-20 1982-10-20 LEVELING DEVICE FOR CAMERA WEAPON MECHANICS OF THE NEGATIVE TYPE
FR8217843 1982-10-20

Publications (2)

Publication Number Publication Date
EP0108026A1 true EP0108026A1 (en) 1984-05-09
EP0108026B1 EP0108026B1 (en) 1986-01-15

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Application Number Title Priority Date Filing Date
EP83420168A Expired EP0108026B1 (en) 1982-10-20 1983-10-19 Leveling device for a negative cam dobby

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Country Link
US (1) US4534385A (en)
EP (1) EP0108026B1 (en)
JP (1) JPS5988945A (en)
DE (1) DE3361870D1 (en)
FR (1) FR2534936A1 (en)

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US5064903A (en) * 1990-08-08 1991-11-12 Exxon Research And Engineering Company Elastomeric toughened polyethylene blends
FR2669648B1 (en) * 1990-11-27 1993-01-29 Staubli Verdol ASSEMBLY FOR CONTROLLING THE MOVEMENT OF THE FRAMES OF A CROWD FORMING DEVICE SUCH AS AN ARMOR MECHANICS.
JPH06306746A (en) * 1993-04-17 1994-11-01 Nissan Tekushisu Kk Weft bar prevention apparatus of loom provided with cam-type opener having leveling apparatus
US5653268A (en) * 1995-01-16 1997-08-05 Staubli Gmbh Modulator mechanism for a rotary dobby in a loom
JP7017336B2 (en) * 2017-08-07 2022-02-08 津田駒工業株式会社 Leveling device on looms

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR51838E (en) * 1941-10-28 1943-05-04 Control device for heald frames for looms
CH255931A (en) * 1945-12-12 1948-07-31 Sulzer Ag Loom.
FR1167691A (en) * 1956-05-18 1958-11-27 Webstuhlbau Neugersdorf Veb Device applicable to the movements of external steps for leveling the blades, in particular for looms

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB245308A (en) * 1925-02-26 1926-01-07 John Henry Place Improvements in or relating to dobbies for looms for weaving
GB568193A (en) * 1942-06-29 1945-03-22 Hermann Staeubli An improved treadle motion for looms
GB792458A (en) * 1956-06-02 1958-03-26 Webstuhlbau Neugersdorf Veb Means for levelling the healds in looms
CH634613A5 (en) * 1979-02-15 1983-02-15 Textilma Ag WEAVING MACHINE WITH SHAFTS AND THESE LEVER ASSIGNED.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR51838E (en) * 1941-10-28 1943-05-04 Control device for heald frames for looms
CH255931A (en) * 1945-12-12 1948-07-31 Sulzer Ag Loom.
FR1167691A (en) * 1956-05-18 1958-11-27 Webstuhlbau Neugersdorf Veb Device applicable to the movements of external steps for leveling the blades, in particular for looms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU617548B2 (en) * 1988-10-25 1991-11-28 Terumo Kabushiki Kaisha Blood platelet preserving container and method for production thereof

Also Published As

Publication number Publication date
FR2534936B1 (en) 1985-03-15
FR2534936A1 (en) 1984-04-27
EP0108026B1 (en) 1986-01-15
US4534385A (en) 1985-08-13
DE3361870D1 (en) 1986-02-27
JPS5988945A (en) 1984-05-23

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