EP0788562B1 - Releasable neck cord for a jacquard machine harness - Google Patents

Releasable neck cord for a jacquard machine harness Download PDF

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Publication number
EP0788562B1
EP0788562B1 EP95936594A EP95936594A EP0788562B1 EP 0788562 B1 EP0788562 B1 EP 0788562B1 EP 95936594 A EP95936594 A EP 95936594A EP 95936594 A EP95936594 A EP 95936594A EP 0788562 B1 EP0788562 B1 EP 0788562B1
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EP
European Patent Office
Prior art keywords
shuttle
gripping portion
connector according
gripping
jaw
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Expired - Lifetime
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EP95936594A
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German (de)
French (fr)
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EP0788562A1 (en
Inventor
Jean-Paul Froment
Jean-Jacques Lacroix
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Staubli Faverges SCA
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Staubli Faverges SCA
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/40—Constructions of lifting-cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45471—Projection having movable connection between components thereof or variable configuration
    • Y10T24/45524—Projection having movable connection between components thereof or variable configuration including resiliently biased projection component or surface segment
    • Y10T24/45529—Requiring manual force applied against bias to interlock or disengage
    • Y10T24/45534—Requiring manual force applied against bias to interlock or disengage having connected leading edge and separated trailing arms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/60—Biased catch or latch
    • Y10T403/606—Leaf spring

Definitions

  • the present invention relates to Jacquard machines for training of the crowd on the weaving machines and it concerns more particularly the harnesses which are coupled to the movable actuating members of these mechanics for controlling the chain son.
  • a harness in conventional construction, includes a multitude of cords in number equal to that of the actuating members of mechanics, each of these cords connecting to one or more arches which are themselves connected to the eyelet rails.
  • the connection cords and arches is secured using carabiners, very awkward maneuvering, and it can be seen that the disassembly and subsequent reassembly of a harness when repairing or replacing it involves handling thousands of carabiners. The operation is therefore long and tedious and results in an expensive production shutdown.
  • the assembly collar according to the invention comprises two elements male and female which are attached respectively to the ends of the cord and the yoke to be connected to be able to be fitted axially one inside each other.
  • the female element contains at least one jaw whose jaws are profiled to pinch the male element immediately behind a harpoon point provided at the end of this one.
  • the latter is equipped, behind the harpoon point, a ring or shuttle which is axially movable to ensure the jaw control at opening and closing.
  • the bearing surface of the bit against the back of the point of the harpoon is substantially parallel to the rear face of the harpoon point when the jaw is in closed position.
  • the surface jaw range against the rear of the harpoon point is substantially radial when the jaw is in the closed position. So the vibrations due to movements of the loom and surrounding looms that constantly stress the jaws work these jaws in flexion, which is adapted to their geometry. There is therefore no risk of wear or breakage of the jaws while such a risk would be present with a collar in which the jaws would rest against the back of the harpoon point on an edge or on their field, the jaws then being subjected to creep and their ends in point form being worn by the multiple contact with the point in harpoon.
  • the bearing surface of each jaw against the shuttle is substantially axial when the jaw is in the open position.
  • the axial length of the shuttle is greater than the distance between the outer surface of the jaws and the rear side of the harpoon point when the male part is completely internal to the female element.
  • the shuttle does not risk not escape the jaws by being pushed back between the jaws and the harpoon point. This feature avoids any risk jamming of the shuttle.
  • the reference 1 designates a mechanical armor of VERDOL or JACQUARD type, supported above the weaving machine by a structure 2.
  • Each of the usual cords 3 of Mechanics 1 is assembled, by means of a removable collar 4, to one or more arches 5 which cross a board with holes 6 below which each of them passes through a grouting board 7 and carries an eyelet wire guide 8 before attaching to a return spring 9 hooked to a bottom board 10, placed below the weaving machine (not shown).
  • Each collar 4 comprises two parts, namely a female element 11 made integral with one or more arches 5, and a male element or end piece 12, the lower part of which cooperates with the element 11.
  • the female element 11 is constituted by a tubular cylindrical piece open upwards, obtained by molding a semi-rigid synthetic material capable of deforming elastically. Below its upper outlet, this part 11 is cut longitudinally from slots which define two opposite jaws 13 independent of each other, the lower end of which is curved to form a beak or jaw 13 a with a slightly concave profile. .
  • the male end piece 12 is constituted by a cylindrical piece of rigid plastic material, the lower end of which is profiled to form a harpoon point 12 a .
  • a shuttle 14 constituted by a ring provided slotted to be susceptible, by means of momentary elastic deformation, to be engaged on the rod 12 b , between the point 12 a above and an annular shoulder 12 c of the male end piece 12.
  • the upper part of this is provided axially hollow to receive and retain the end of one of the cords 3 of the mechanics, in the same way that the base of the female element 11 of the collar is arranged to receive and retain the end of one or more arches 5.
  • each of the collars 4 according to the invention is in the coupled position illustrated in FIG. 3.
  • the harpoon point 12 a is engaged in the female element 11 and is located in a position axial such that the lower jaws 13 a are arranged immediately above said point, so that the latter is thus retained in place and prohibits any dissociation of the elements 11 and 12.
  • the jaws 13 are thus in the closed position.
  • each jaw 13 thus works in flexion When the harpoon tip tends to move, which is compatible with the mechanical properties of the semi-rigid synthetic material used for the jaws 13. This is particularly advantageous compared to a device in which the jaws would rest against the back of the harpoon point on their field because The jaws would then be stressed against creep by the vibrations due to the movements of the loom and surrounding looms and by the load due to the weight of the harness, which could break or deform in the direction of the shuttle and may lock the shuttle in position.
  • the bearing surface of the jaws 13 has at the back of the harpoon tip 12a is substantially prevents a radial edge-shaped tip 13a or the jaws of the field is in abutment against the tip 12 a , which could result in premature wear due to the vibrations and the load already mentioned.
  • the arrangement of the jaws 13 a relative to the harpoon point 12 a makes it possible to resist the significant mechanical stresses which the collar undergoes.
  • the external surface of the jaws 13 a can be adapted so that, when the device is in the position in FIG. 3, the external face of the jaws 13 a and the rear face of the harpoon point are in contact with the one against the other and substantially parallel.
  • the shuttle 14 arrives at the end of the upper stroke by bearing against the annular shoulder 12 c as shown in FIG. 4, so that the jaws 13 a , after having been controlled to open by a chamfer 14a provided on the lower edge of said shuttle, pinch it which is then firmly secured axially to the jaws 13 and the female element 11, the jaws then being in their position opened.
  • the chamfer 14 helps to facilitate the opening of jaws 13a by the shuttle 14, being observed that the combination of a curved jaw 13 and the chamfer 14 provides a large radial displacement of the jaws at a low axial displacement, and , consequently, a good dimensioning of the spans while respecting a minimum overall dimensions, which constitutes a capital criterion in a Jacquard harness having regard to the very large quantity of components which must not have any interference between them while occupying the smallest possible total area.
  • the surface of the jaws 13 a opposite the cylindrical rod 12 b is flared in the direction of the chamfer 14 a , which contributes to the opening of the jaws 13 because the engagement of the chamfer 14 has between the jaws 13a is facilitated.
  • the length L of the shuttle 14 is greater than the distance l between the external surface jaws 13 a and the rear face of the harpoon point 12 a when an upper shoulder 12 d of the part 12 is in abutment against the upper part of the female element 11, as shown in FIG. 4.
  • the radial clearance between the cylindrical part of the male element 12 located between the two shoulders 12 c and 12 d and the annular inlet of the female element 11 is small enough that the range between this cylindrical part and this inlet serves as an axial guide to the male element 12 in the female element 11.
  • This axial guide allows in the first place to maintain good alignment of the parts during the dynamic operation of the mechanics, ensuring thus obtaining optimum geometries at the jaw supports and avoiding premature wear of the parts.
  • this same axial guidance prevents the shuttle 14 from being misaligned with the axis of the female element 11 during its movements relative to the jaws 13 a while any misalignment is likely to result in jamming of the shuttle 14, and therefore in blocking of the collar.
  • the clamp enclosed by the female element 11 of collars may have one or more than two jaws.
  • the operation of the collar at the coupling as at the dissociation is in all cases simplified compared to that of conventional carabiners, such a simplification making it possible to envisage automation for the simultaneous manipulation of all the collars 4 of the mechanics.
  • the shuttle 14 can be given a frustoconical profile with a large base facing the side of the tip 12 a , so that the pinching of the jaws on said shuttle brings the latter back towards the aforementioned tip during the operation. uncoupling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Harvester Elements (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Adornments (AREA)
  • Woven Fabrics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Automatic Assembly (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Description

La présente invention a trait aux mécaniques Jacquard pour la formation de la foule sur les machines à tisser et elle concerne plus particulièrement les harnais qui sont attelés aux organes mobiles d'actionnement de ces mécaniques pour la commande des fils de chaíne.The present invention relates to Jacquard machines for training of the crowd on the weaving machines and it concerns more particularly the harnesses which are coupled to the movable actuating members of these mechanics for controlling the chain son.

On sait que dans la construction classique, un harnais comprend une multitude de cordons en nombre égal à celui des organes d'actionnement de la mécanique, chacun de ces cordons se raccordant à une ou plusieurs arcades qui sont elles-mêmes reliées aux lisses porte-oeillet. Le raccordement des cordons et des arcades est assuré à l'aide de mousquetons, de manoeuvre très malaisée, et l'on conçoit que le démontage et le remontage subséquent d'un harnais à l'occasion de sa réparation ou de son remplacement impliquent la manipulation de plusieurs milliers de mousquetons. L'opération est en conséquence longue et fastidieuse et entraine un arrêt coûteux de la production.We know that in conventional construction, a harness includes a multitude of cords in number equal to that of the actuating members of mechanics, each of these cords connecting to one or more arches which are themselves connected to the eyelet rails. The connection cords and arches is secured using carabiners, very awkward maneuvering, and it can be seen that the disassembly and subsequent reassembly of a harness when repairing or replacing it involves handling thousands of carabiners. The operation is therefore long and tedious and results in an expensive production shutdown.

On connaít, par DE-C-42 13 958, un collet d'accouplement des cordons et des arcades d'une mécanique Jacquard dans lequel la partie femelle a une forme de mors alors que la partie mâle est en forme de pointe en harpon. L'ouverture et la fermeture de ce collet sont peu pratiques.We know, by DE-C-42 13 958, a coupling collar of cords and arches of a Jacquard mechanism in which the female part has a bit shape while the male part is in the shape of a harpoon point. The opening and closing of this collars are impractical.

C'est à cet inconvénient que la présente invention entend remédier, et ce, à l'aide d'un collet d'assemblage qui est agencé de façon à ce que sa manoeuvre soit simple et rapide, en ne nécessitant que le déplacement d'une pièce dans le sens axial.It is this drawback that the present invention intends to remedy, and this, using an assembly collar which is arranged so that that its operation is simple and quick, requiring only the movement of a part in the axial direction.

Le collet d'assemblage suivant l'invention comprend deux éléments mâle et femelle qui sont respectivement fixés aux extrémités du cordon et de l'arcade à raccorder pour être aptes à s'emmancher axialement l'un à l'intérieur de l'autre. L'élément femelle renferme au moins une mâchoire dont les mors sont profilés pour venir pincer l'élément mâle immédiatement en arrière d'une pointe en harpon prévue en bout de celui-ci. Ce dernier est équipé, en arrière de la pointe en harpon, d'une bague ou navette qui est mobile axialement afin d'assurer la commande des mors à l'ouverture et à la fermeture. La surface de portée du mors contre l'arrière de la pointe du harpon est sensiblement parallèle à la face arrière de la pointe en harpon lorsque la mâchoire est en position fermée. The assembly collar according to the invention comprises two elements male and female which are attached respectively to the ends of the cord and the yoke to be connected to be able to be fitted axially one inside each other. The female element contains at least one jaw whose jaws are profiled to pinch the male element immediately behind a harpoon point provided at the end of this one. The latter is equipped, behind the harpoon point, a ring or shuttle which is axially movable to ensure the jaw control at opening and closing. The bearing surface of the bit against the back of the point of the harpoon is substantially parallel to the rear face of the harpoon point when the jaw is in closed position.

Selon une forme de réalisation avantageuse de l'invention, la surface de portée du mors contre l'arrière de la pointe en harpon est sensiblement radiale lorsque la mâchoire est en position fermée. Ainsi, les vibrations dues aux mouvements du métier à tisser et des métiers environnants qui sollicitent en permanence les mâchoires font travailler ces mâchoires en flexion, ce qui est adapté à leur géométrie. IL n'y a donc pas de risque d'usure ou de rupture des mâchoires alors qu'un tel risque serait présent avec un collet dans lequel les mâchoires reposeraient contre l'arrière de la pointe en harpon sur une arête ou sur leur champ, les mâchoires étant alors sollicitées au fluage et leurs extrémités en forme de pointe étant usées par les multiples contact avec la pointe en harpon.According to an advantageous embodiment of the invention, the surface jaw range against the rear of the harpoon point is substantially radial when the jaw is in the closed position. So the vibrations due to movements of the loom and surrounding looms that constantly stress the jaws work these jaws in flexion, which is adapted to their geometry. There is therefore no risk of wear or breakage of the jaws while such a risk would be present with a collar in which the jaws would rest against the back of the harpoon point on an edge or on their field, the jaws then being subjected to creep and their ends in point form being worn by the multiple contact with the point in harpoon.

Selon une autre disposition avantageuse de l'invention, la surface de portée de chaque mors contre la navette est sensiblement axiale lorsque la mâchoire est en position ouverte. Ceci a pour conséquence que les efforts transmis par Le mors à la navette sont radiaux, c'est-à-dire perpendiculaires au mouvement de la navette par rapport au reste de l'élément mâle. La navette n'a pas ainsi tendance a être déplacée par des efforts axiaux dûs au mors. En particulier, elle ne risque pas d'être chassée, par ces efforts à l'opposé de la pointe en harpon.According to another advantageous arrangement of the invention, the bearing surface of each jaw against the shuttle is substantially axial when the jaw is in the open position. This has consequence that the forces transmitted by the bit to the shuttle are radial, i.e. perpendicular to the movement of the shuttle by compared to the rest of the male element. The shuttle does not therefore tend to be moved by axial forces due to the jaw. In particular, it does not risk being driven out, by these efforts opposite the point in harpoon.

On peut aussi avantageusement prévoir que la longueur axiale de la navette est supérieure à la distance entre la surface externe des mors et la face arrière de la pointe en harpon lorsque la partie mâle est complètement intropduite dans l'élément femelle. La navette ne risque pas d'échapper aux mâchoires en étant repoussée entre les mâchoires et la pointe en harpon. Cette caractéristique permet d'éviter tout risque de coincement de la navette.It is also advantageously possible to provide that the axial length of the shuttle is greater than the distance between the outer surface of the jaws and the rear side of the harpoon point when the male part is completely internal to the female element. The shuttle does not risk not escape the jaws by being pushed back between the jaws and the harpoon point. This feature avoids any risk jamming of the shuttle.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'un collet démontable d'accouplement des cordons et des arcades d'un harnais de mécanique Jacquard, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 rappelle de manière schématique l'agencement général du harnais d'une mécanique Jacquard ;
  • la figure 2 montre en perspective avec arrachement Les deux éléments constitutifs d'un collet d'assemblage suivant l'invention et
  • les figures 3 à 6 sont des coupes axiales à plus grande échelle illustrant les phases successives du processus de manoeuvre du collet.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a removable collar for coupling the cords and the arches of a harness Jacquard mechanics, given only by way of example and made with reference to the accompanying drawings in which:
  • Figure 1 schematically recalls the general arrangement of the harness of a Jacquard machine;
  • FIG. 2 shows in perspective with cutaway The two constituent elements of an assembly collar according to the invention and
  • Figures 3 to 6 are axial sections on a larger scale illustrating the successive phases of the collar operating process.

A la figure 1, la référence 1 désigne une mécanique d'armure de type VERDOL ou JACQUARD, supportée au-dessus de la machine à tisser par une structure 2. Chacun des cordons usuels 3 de La mécanique 1 est assemblé, au moyen d'un collet démontable 4, à une ou plusieurs arcades 5 qui traversent une planche à trous 6 au-dessous de laquelle chacune d'elles passe à travers une planche d'empoutage 7 et porte un oeillet guide-fil 8 avant de s'attacher à un ressort de rappel 9 accroché à une planche de fond 10, placée au-dessous de la machine à tisser (non représentée).In FIG. 1, the reference 1 designates a mechanical armor of VERDOL or JACQUARD type, supported above the weaving machine by a structure 2. Each of the usual cords 3 of Mechanics 1 is assembled, by means of a removable collar 4, to one or more arches 5 which cross a board with holes 6 below which each of them passes through a grouting board 7 and carries an eyelet wire guide 8 before attaching to a return spring 9 hooked to a bottom board 10, placed below the weaving machine (not shown).

Chaque collet 4 comprend deux pièces, à savoir un élément femelle 11 rendu solidaire d'une ou de plusieurs arcades 5, et un élément mâle ou embout 12 dont la partie inférieure coopère avec l'élément 11.Each collar 4 comprises two parts, namely a female element 11 made integral with one or more arches 5, and a male element or end piece 12, the lower part of which cooperates with the element 11.

Comme montré, l'élément femelle 11 est constitué par une pièce cylindrique tubulaire ouverte vers le haut, obtenue par moulage d'une matière synthétique semi-rigide susceptible de se déformer élastiquement. Au-dessous de son débouché supérieur, cette pièce 11 est découpée longitudinalement de fentes qui définissent deux mâchoires opposées 13 indépendantes l'une de l'autre, dont l'extrémité inférieure est recourbée pour former un bec ou mors 13a à profil légèrement concave.As shown, the female element 11 is constituted by a tubular cylindrical piece open upwards, obtained by molding a semi-rigid synthetic material capable of deforming elastically. Below its upper outlet, this part 11 is cut longitudinally from slots which define two opposite jaws 13 independent of each other, the lower end of which is curved to form a beak or jaw 13 a with a slightly concave profile. .

L'embout mâle 12 est constitué par une pièce cylindrique en matière plastique rigide, dont l'extrémité inférieure est profilée pour former une pointe en harpon 12a. Sur la tige cylindrique 12b à plus petit diamètre qui surmonte cette pointe 12a, coulisse librement une navette 14, constituée par une bague prévue fendue pour être susceptible, moyennant déformation élastique momentanée, d'être engagée sur la tige 12b, entre la pointe 12a précitée et un épaulement annulaire 12c de l'embout mâle 12. La partie supérieure de celui-ci est prévue axialement creuse pour recevoir et retenir l'extrémité de l'un des cordons 3 de la mécanique, de la même manière que la base de l'élément femelle 11 du collet est agencée pour recevoir et retenir l'extrémité d'une ou de plusieurs arcades 5.The male end piece 12 is constituted by a cylindrical piece of rigid plastic material, the lower end of which is profiled to form a harpoon point 12 a . On the cylindrical rod 12 b with a smaller diameter which surmounts this point 12 a , slides freely a shuttle 14, constituted by a ring provided slotted to be susceptible, by means of momentary elastic deformation, to be engaged on the rod 12 b , between the point 12 a above and an annular shoulder 12 c of the male end piece 12. The upper part of this is provided axially hollow to receive and retain the end of one of the cords 3 of the mechanics, in the same way that the base of the female element 11 of the collar is arranged to receive and retain the end of one or more arches 5.

Lorsque La mécanique 1 est en état de fonctionnement, chacun des collets 4 suivant l'invention se trouve à la position accouplée illustrée à la figure 3. La pointe en harpon 12a est engagée dans l'élément femelle 11 et est située à une position axiale telle que les mors inférieurs 13a sont disposés immédiatement au-dessus de ladite pointe, si bien que cette dernière est ainsi retenue en place et interdit toute dissociation des éléments 11 et 12. Les mâchoires 13 sont ainsi en position fermée.When the mechanics 1 is in working condition, each of the collars 4 according to the invention is in the coupled position illustrated in FIG. 3. The harpoon point 12 a is engaged in the female element 11 and is located in a position axial such that the lower jaws 13 a are arranged immediately above said point, so that the latter is thus retained in place and prohibits any dissociation of the elements 11 and 12. The jaws 13 are thus in the closed position.

Comme les mors 13a sont constitués par l'extrémité recourbée des mâchoires 13, la surface de portée des mors contre l'arrière de la pointe en harpon 12a est sensiblement radiale. Chaque mâchoire 13 travaille ainsi en flexion Lorsque la pointe en harpon a tendance à bouger, ce qui est compatible avec les propriétés mécaniques de la matière synthétique semi-rigide utilisée pour les mâchoires 13. Ceci est particulièrement avantageux par rapport à un dispositif dans lequel les mâchoires reposeraient contre l'arrière de la pointe en harpon sur leur champ car Les mâchoires seraient alors sollicitées au fluage par les vibrations dues aux mouvements du métier à tisser et des métiers environnants et par la charge due au poids du harnais, ce qui pourrait les faire se rompre ou se déformer en direction de la navette et risquerait de bloquer la navette en position.As the jaws 13 a are formed by the curved end of the jaws 13, the surface of the jaws bearing against the rear of the harpoon point 12 a is substantially radial. Each jaw 13 thus works in flexion When the harpoon tip tends to move, which is compatible with the mechanical properties of the semi-rigid synthetic material used for the jaws 13. This is particularly advantageous compared to a device in which the jaws would rest against the back of the harpoon point on their field because The jaws would then be stressed against creep by the vibrations due to the movements of the loom and surrounding looms and by the load due to the weight of the harness, which could break or deform in the direction of the shuttle and may lock the shuttle in position.

Par ailleurs, le fait que la surface de portée des mors 13a à l'arrière de la pointe en harpon 12a est sensiblement radiale évite qu'une arête en forme de pointe ou le champ du mors 13a ne soit en appui contre la pointe 12a, ce qui pourrait résulter dans une usure prématurée du fait des vibrations et de la charge déjà mentionnées. Ainsi, la disposition des mors 13a par rapport à la pointe en harpon 12a permet de résister aux sollicitations mécaniques importantes que subit le collet.Furthermore, the fact that the bearing surface of the jaws 13 has at the back of the harpoon tip 12a is substantially prevents a radial edge-shaped tip 13a or the jaws of the field is in abutment against the tip 12 a , which could result in premature wear due to the vibrations and the load already mentioned. Thus, the arrangement of the jaws 13 a relative to the harpoon point 12 a makes it possible to resist the significant mechanical stresses which the collar undergoes.

Il est bien entendu que, si la face arrière de la pointe 12a n'est pas perpendiculaire à l'axe de translation de celle-ci mais présente un angle positif par rapport à l'horizontale de sorte que la pointe a un profil en forme de flèche, la surface externe des mors 13a peut être adaptée pour que, lorsque le dispositif est dans la position de la figure 3, la face externe des mors 13a et la face arrière de la pointe en harpon soient en appui l'une contre l'autre et sensiblement parallèles.It is understood that, if the rear face of the tip 12 a is not perpendicular to the axis of translation of the latter but has a positive angle relative to the horizontal so that the tip has a profile in arrow shape, the external surface of the jaws 13 a can be adapted so that, when the device is in the position in FIG. 3, the external face of the jaws 13 a and the rear face of the harpoon point are in contact with the one against the other and substantially parallel.

Lorsqu'il désire procéder au démontage du collet 4, l'opérateur exerce sur les éléments 11 et 12 un effort axial de contraction en vue de les rapprocher l'un de l'autre. Dans ce mouvement axial, les mors 13a des mâchoires 13 glissent le long de la tige cylindrique 12b en provoquant une très légère élévation de la navette 14.When he wishes to disassemble the collar 4, the operator exerts on the elements 11 and 12 an axial contraction force in order to bring them closer to one another. In this axial movement, the jaws 13 a of the jaws 13 slide along the cylindrical rod 12 b causing a very slight rise in the shuttle 14.

Le déplacement axial de rapprochement se poursuivant, à un moment donné, la navette 14 arrive en fin de course haute par portée contre l'épaulement annulaire 12c ainsi que cela apparaít à la figure 4, si bien que les mors 13a, après avoir été commandés à l'ouverture par un chanfrein 14a prévu sur le bord inférieur de ladite navette, viennent pincer celle-ci qui se trouve alors fermement rendue solidaire axialement des mâchoires 13 et de l'élément femelle 11, les mâchoires étant alors dans leur position ouverte. The axial movement of approximation continuing, at a given moment, the shuttle 14 arrives at the end of the upper stroke by bearing against the annular shoulder 12 c as shown in FIG. 4, so that the jaws 13 a , after having been controlled to open by a chamfer 14a provided on the lower edge of said shuttle, pinch it which is then firmly secured axially to the jaws 13 and the female element 11, the jaws then being in their position opened.

Le chanfrein 14a contribue à faciliter l'ouverture des mors 13a par la navette 14, étant observé que la combinaison du mors 13a recourbé et du chanfrein 14a permet d'obtenir un grand déplacement radial des mors moyennant un faible déplacement axial, et, en conséquence, un bon dimensionnement des portées tout en respectant un encombrement minimal hors tout, ce qui constitue un critère capital dans un harnais Jacquard eu égard à la très grande quantité de composants qui ne doivent pas avoir d'interférences entre eux tout en occupant une surface totale la plus réduite possible.The chamfer 14 helps to facilitate the opening of jaws 13a by the shuttle 14, being observed that the combination of a curved jaw 13 and the chamfer 14 provides a large radial displacement of the jaws at a low axial displacement, and , consequently, a good dimensioning of the spans while respecting a minimum overall dimensions, which constitutes a capital criterion in a Jacquard harness having regard to the very large quantity of components which must not have any interference between them while occupying the smallest possible total area.

De plus dans la position de fermeture des mâchoires 13, la surface des mors 13a en regard de la tige cylindrique 12b est évasée en direction du chanfrein 14a, ce qui contribue à l'ouverture des mâchoires 13 car l'engagement du chanfrein 14a entre les mors 13a en est facilité.In addition, in the closed position of the jaws 13, the surface of the jaws 13 a opposite the cylindrical rod 12 b is flared in the direction of the chamfer 14 a , which contributes to the opening of the jaws 13 because the engagement of the chamfer 14 has between the jaws 13a is facilitated.

Dans la position d'ouverture des mâchoires 13, telle qu'elle est représentée aux figures 4 et 5, la surface de portée des mors 13a contre la tige cylindrique 12b de l'élément mâle 12 est sensiblement axiale. les efforts de pincement dûs au caractère semi-rigide des mâchoires 13 sont sensiblement radiaux, ce qui implique que la navette 14 n'a pas tendance à être déplacée dans la direction axiale le long de la tige cylindrique 12b. La navette 14 est ainsi fermement maintenue en position par les mors 13 et ne risque pas d'être chassée par des efforts axiaux en direction de l'épaulement 12c.In the open position of the jaws 13, as shown in Figures 4 and 5, the bearing surface of the jaws 13 a against the cylindrical rod 12 b of the male element 12 is substantially axial. the gripping forces due to the semi-rigid character of the jaws 13 are substantially radial, which means that the shuttle 14 does not tend to be displaced in the axial direction along the cylindrical rod 12 b. The shuttle 14 is thus firmly held in position by the jaws 13 and does not risk being driven out by axial forces in the direction of the shoulder 12 c .

Par ailleurs, afin d'éviter que la navette 14 ne puisse être coincée entre les mors 13a et l'arrière de la pointe, en harpon 12a, la longueur L de la navette 14 est supérieure à la distance l entre la surface externe des mors 13a et la face arrière de la pointe en harpon 12a lorsqu'un épaulement supérieur 12d de la pièce 12 est en appui contre la partie supérieure de l'élément femelle 11, ainsi que cela est représenté en figure 4.Furthermore, in order to avoid that the shuttle 14 cannot be trapped between the jaws 13 a and the rear of the point, in harpoon 12 a , the length L of the shuttle 14 is greater than the distance l between the external surface jaws 13 a and the rear face of the harpoon point 12 a when an upper shoulder 12 d of the part 12 is in abutment against the upper part of the female element 11, as shown in FIG. 4.

Lorsque le bord supérieur de l'élément femelle 11 vient buter contre le second épaulement annulaire 12d surmontant le premier 12c, L'opérateur inverse son effort axial et tend à séparer l'un de l'autre les deux éléments 11 et 12, de sorte que la navette 14, toujours pincée par les mors 13a, se déplace vers le bas le long de la partie cylindrique 12b. A un point donné du mouvement de séparation, la navette 14 s'immobilise contre la face supérieure de la pointe 12a, ainsi que cela apparaít à la figure 5, ce qui permet aux mors 13a d'échapper à l'accrochage sur la partie à grand diamètre de la pointe 12a du fait que la hauteur desdits mors est supérieure à la hauteur du chanfrein 14a de la navette.When the upper edge of the female element 11 abuts against the second annular shoulder 12 d surmounting the first 12 c , the operator reverses its axial force and tends to separate the two elements 11 and 12 from one another, so that the shuttle 14, still gripped by the jaws 13 a , moves downwards along the cylindrical part 12 b . At a given point in the separation movement, the shuttle 14 comes to rest against the upper face of the tip 12 a , as appears in FIG. 5, which allows the jaws 13 a to escape hooking on the part with a large diameter of the tip 12 a because the height of said jaws is greater than the height of the chamfer 14 a of the shuttle.

Ainsi qu'il apparaít aux figures 3 à 6, le jeu radial entre la partie cylindrique de l'élément mâle 12 située entre les deux épaulement 12c et 12d et l'entrée annulaire de l'élément femelle 11 est assez faible pour que la portée entre cette partie cylindrique et cette entrée serve de guidage axial à l'élément mâle 12 dans l'élément femelle 11. Ce guidage axial permet en premier lieu de maintenir un bon alignement des pièces pendant le fonctionnement dynamique de la mécanique, en assurant ainsi l'obtention de géométries optimales au niveau des appuis des mors et en évitant l'usure prématurée des pièces. De plus ce même guidage axial évite que la navette 14 soit mal alignée avec l'axe de l'élément femelle 11 lors de ses mouvements par rapport aux mors 13a alors que tout défaut d'alignement est susceptible de résulter en un coincement de la navette 14, et donc en un blocage du collet.As it appears in Figures 3 to 6, the radial clearance between the cylindrical part of the male element 12 located between the two shoulders 12 c and 12 d and the annular inlet of the female element 11 is small enough that the range between this cylindrical part and this inlet serves as an axial guide to the male element 12 in the female element 11. This axial guide allows in the first place to maintain good alignment of the parts during the dynamic operation of the mechanics, ensuring thus obtaining optimum geometries at the jaw supports and avoiding premature wear of the parts. In addition, this same axial guidance prevents the shuttle 14 from being misaligned with the axis of the female element 11 during its movements relative to the jaws 13 a while any misalignment is likely to result in jamming of the shuttle 14, and therefore in blocking of the collar.

La poursuite du mouvement de séparation des deux éléments 11 et 12 provoque la dissociation de ceux-ci à la manière illustrée en fig. 2.The continuation of the movement of separation of the two elements 11 and 12 causes them to dissociate in the manner illustrated in FIG. 2.

Le désaccouplement des deux éléments du collet n'implique donc finalement qu'un mouvement axial dans les deux directions opposées. Il en va de même pour l'accouplement puisque l'engagement axial des deux éléments du collet provoque en premier lieu l'écartement des mors 13a au niveau de la pointe 12a de l'extrémité, puis l'élévation de la navette 14, ainsi que cela apparaít à la figure 6, lesdits mors venant enfin se verrouiller sous celle-ci, au-dessus de la pointe 12a, comme cela est représenté à la figure 3.The uncoupling of the two elements of the collar therefore ultimately involves only an axial movement in the two opposite directions. The same goes for coupling since the axial engagement of the two elements of the collar firstly causes the jaws 13 a to be separated at the point 12 a of the end, then the elevation of the shuttle 14 , as appears in FIG. 6, said jaws finally coming to lock under it, above the tip 12 a , as shown in FIG. 3.

On conçoit que la pince renfermée par l'élément femelle 11 des collets peut comporter une seule ou plus de deux mâchoires. On observera que la manoeuvre du collet à l'accouplement comme à la dissociation est dans tous les cas simplifiée par rapport à celle des mousquetons classiques, une telle simplification permettant d'envisager une automatisation pour la manipulation simultanée de l'ensemble des collets 4 de la mécanique.It is understood that the clamp enclosed by the female element 11 of collars may have one or more than two jaws. We will observe that the operation of the collar at the coupling as at the dissociation is in all cases simplified compared to that of conventional carabiners, such a simplification making it possible to envisage automation for the simultaneous manipulation of all the collars 4 of the mechanics.

IL doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents. On peut en particulier conférer à la navette 14 un profil tronconique à grande base tournée du côté de la pointe 12a, de telle sorte que le pincement des mors sur ladite navette ramène cette dernière en direction de la pointe précitée au cours de l'opération de désaccouplement.It should also be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents. In particular, the shuttle 14 can be given a frustoconical profile with a large base facing the side of the tip 12 a , so that the pinching of the jaws on said shuttle brings the latter back towards the aforementioned tip during the operation. uncoupling.

Claims (10)

  1. A releasable connector for coupling the neck twine and cords of a Jacquard harness, comprising on the one hand a female member (11) which has at least one resiliently deformable gripping jaw (13), the end of which is formed of a gripping portion (13a), and on the other hand a male member (12) in the form of a harpoon tip (12a), the surface of said gripping portion (13a) which bears against the rear of said harpoon tip (12a) being substantially parallel to the rear face of said harpoon tip when said gripping jaw in a closed position, characterised in that said male member has, behind the harpoon tip (12a), a shuttle (14) which may be moved axially, between two abutments, to ensure opening and closing of the above-mentioned gripping jaw by means of the axial displacement of said shuttle with respect to said gripping portion.
  2. A connector according to claim 1, characterised in that the surface of said gripping portion (13a) which bears against the rear of said harpoon tip (12a) is substantially radial when said gripping jaw (13) is in the closed position.
  3. A connector according to claim 1, characterised in that the surface of said gripping portion (13a) which bears against said shuttle (14) is substantially axial when said gripping jaw (13) is in the open position.
  4. A connector according to any one of claims 1 to 3, characterised in that said gripping portion (13a) consists of the curved end of said gripping jaw (13).
  5. A connector according to claim 1, characterised in that the axial length (L) of said shuttle (14) is greater than the distance (l) between the outer surface of said gripping portion (13a) and the rear face of said harpoon tip (12a).
  6. A connector according to one of the preceding claims, characterised in that the radial play between the outer surface of the male member (12) between two shoulders (12c, (12d) and the inner surface of said female member (11) is capable of allowing axial guidance of said male member in said female member.
  7. A connector according to claim 1, characterised in that a bevel (14a) is provided on the edge of said shuttle (14) which is oriented towards said harpoon tip (12a), said bevel being capable of cooperating with said gripping portion (13a) so as to open it.
  8. A connector according to claim 7, characterised in that said gripping portion (13a) provided at the end of said gripping jaw (13) has a height greater than that of said bevel (14a) so as to permit said gripping portion to avoid catching on the large diameter portion of said tip (12a) when said gripping portion is on the outside of said shuttle (14) and the two male (12) and female (11) members are in the course of being separated one from the other.
  9. A connector according to claim 7, characterised in that the surface of said gripping portion (13a) disposed opposite a cylindrical portion (12b) of said male member (12) formed between said harpoon tip (12a) and an annular shoulder (12c) forming an abutment for said shuttle, when said jaw is closed, opens out in the direction of said bevel (14a) of said shuttle (14).
  10. A connector according to any one of the preceding claims, characterised in that the shuttle consists of a ring (14) slit longitudinally so as to be capable, by elastic deformation, of being engaged on a cylindrical portion (12b) formed between said harpoon tip (12a) and an annular shoulder (12c) forming an abutment for said shuttle.
EP95936594A 1994-10-24 1995-10-23 Releasable neck cord for a jacquard machine harness Expired - Lifetime EP0788562B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9412922 1994-10-24
FR9412922A FR2726010B3 (en) 1994-10-24 1994-10-24 REMOVABLE COLLAR FOR JACQUARD MECHANICAL HARNESSES
PCT/FR1995/001399 WO1996012836A1 (en) 1994-10-24 1995-10-23 Releasable neck cord for a jacquard machine harness

Publications (2)

Publication Number Publication Date
EP0788562A1 EP0788562A1 (en) 1997-08-13
EP0788562B1 true EP0788562B1 (en) 2000-05-31

Family

ID=9468312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95936594A Expired - Lifetime EP0788562B1 (en) 1994-10-24 1995-10-23 Releasable neck cord for a jacquard machine harness

Country Status (9)

Country Link
US (1) US5791382A (en)
EP (1) EP0788562B1 (en)
JP (1) JP3718228B2 (en)
KR (1) KR100345569B1 (en)
CN (1) CN1045798C (en)
DE (2) DE29515587U1 (en)
ES (1) ES2147305T3 (en)
FR (1) FR2726010B3 (en)
WO (1) WO1996012836A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP3228739A2 (en) 2016-04-07 2017-10-11 NV Michel van de Wiele Connecting means for detachably connecting elements of a warp yarn positioning system on a weaving loom

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DE29801698U1 (en) * 1997-11-19 1998-04-16 Textilma Ag Quick connector for connecting the hosiery with at least one harness cord
KR100343961B1 (en) * 1997-12-08 2002-11-07 신만선 Twister for manufacturing link of jacquard loom
DE19756598B4 (en) * 1997-12-18 2006-08-31 Grosse Jac Webereimaschinen Gmbh Device for connecting strings
DE19800621C1 (en) * 1998-01-12 1999-07-08 Schroers Jacquard Gmbh & Co Kg Method of making a harness and devices for use in this method
FR2800395B1 (en) * 1999-10-28 2002-03-15 Staubli Lyon JACQUARD HARNESS SPRING SOLIDARIZATION DEVICE AND ASSEMBLY AND WEAVING EQUIPMENT PROVIDED WITH SUCH AN ASSEMBLY
US6554029B1 (en) 2000-05-26 2003-04-29 Wagner Finckh Gmbh Method for mounting a new harness on a seam weaving machine, apparatus for making a flat woven fabric endless and harness carriage
US6497683B1 (en) * 2000-08-16 2002-12-24 Larry P. Pagni System for holding an indwelling catheter
CZ10648U1 (en) * 2000-10-11 2000-12-01 Tre Connecting device for cords
BE1014814A5 (en) * 2002-05-06 2004-04-06 Wiele Michel Van De Nv CONNECTING MEANS FOR DETACHABLE CONNECTION OF JACQUAR MACHINE CORDS.
EP1382279B1 (en) * 2002-07-18 2005-09-14 Goelst, Rolf Edward Safety connection intended for suspending objects, for instance curtain rails, rods, towel racks and the like, as well as a curtain rail system and a connecting device
BE1015048A4 (en) * 2002-07-19 2004-09-07 Wiele Michel Van De Nv DEVICE FOR FIXING OF RETREAT IN HARNESS OF FEATHERS a Jacquard.
DE102005019836A1 (en) * 2005-04-28 2006-11-02 Grosse Jac Webereimaschinen Gmbh Cord connector, e.g. for Jacquard machine harness cords, has two parts locked together by a ratchet lock with a twist locking/release action
BE1020551A3 (en) 2012-03-01 2013-12-03 Wiele Michel Van De Nv DEVICE FOR DETACHABLE CONNECTION OF ELEMENTS FOR POSITIONING NECKLACE YARN ON A WEAVING MACHINE.
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DE3509643C1 (en) * 1985-03-16 1986-09-18 Bernhard 7530 Pforzheim Mohr Buckle for jewelry chains, bracelets, belts and other clothing
FR2685015B1 (en) * 1991-12-12 1994-04-01 Staubli Verdol Sa QUICK ATTACHMENT FOR CONNECTING AT LEAST ONE FUNICULAR ELEMENT TO THE END OF A CORD.
DE4213958C1 (en) * 1992-04-28 1993-04-15 Schroers Jacquard-Papierindustrie Gmbh & Co., 4150 Krefeld, De Installation for joining harness to jacquard machine - has 1st coupling element which gathers harness cords and is opt. connected to 2nd coupling element associated with jacquard machine
BE1008504A5 (en) * 1994-07-18 1996-05-07 Wiele Michel Van De Nv SECURE WINDING DEVICE FOR QUICK CONNECTION OF STRINGS WITH HARNESS lift cords on a weaving machine.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3228739A2 (en) 2016-04-07 2017-10-11 NV Michel van de Wiele Connecting means for detachably connecting elements of a warp yarn positioning system on a weaving loom

Also Published As

Publication number Publication date
KR970707333A (en) 1997-12-01
EP0788562A1 (en) 1997-08-13
KR100345569B1 (en) 2002-12-16
JPH10508661A (en) 1998-08-25
FR2726010A3 (en) 1996-04-26
DE29515587U1 (en) 1996-01-04
CN1161719A (en) 1997-10-08
JP3718228B2 (en) 2005-11-24
US5791382A (en) 1998-08-11
FR2726010B3 (en) 1996-08-30
ES2147305T3 (en) 2000-09-01
WO1996012836A1 (en) 1996-05-02
CN1045798C (en) 1999-10-20
DE69517330D1 (en) 2000-07-06
DE69517330T2 (en) 2000-10-12

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