EP0246389B1 - Device for knotting Smyrna stitches called Ghiordès knots on canvas - Google Patents

Device for knotting Smyrna stitches called Ghiordès knots on canvas Download PDF

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Publication number
EP0246389B1
EP0246389B1 EP19860810609 EP86810609A EP0246389B1 EP 0246389 B1 EP0246389 B1 EP 0246389B1 EP 19860810609 EP19860810609 EP 19860810609 EP 86810609 A EP86810609 A EP 86810609A EP 0246389 B1 EP0246389 B1 EP 0246389B1
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EP
European Patent Office
Prior art keywords
canvas
sleeve
guiding rod
buckle
head
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Expired - Lifetime
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EP19860810609
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German (de)
French (fr)
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EP0246389A1 (en
Inventor
Hubert Jeandupeux
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Individual
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Individual
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04GMAKING NETS BY KNOTTING OF FILAMENTARY MATERIAL; MAKING KNOTTED CARPETS OR TAPESTRIES; KNOTTING NOT OTHERWISE PROVIDED FOR
    • D04G3/00Making knotted carpets or tapestries
    • D04G3/02Making knotted carpets or tapestries by hand; Tools therefor

Definitions

  • the present invention relates to an apparatus for tying Smyrna stitches known as Ghiordes knots on a canvas.
  • the apparatus according to the invention is more precisely of the type comprising: a head secured to a guide rod and carrying a rigid loop; a movable assembly along the guide rod between a rest position and an engaged position, this assembly comprising a control handle and two hooks which, in the rest position, are set back from said loop, on both sides 'other of it, and which, in the engaged position, cross in this loop; a snap normally locking the moving element in the rest position, and a trigger which is integral with a sleeve surrounding the guide rod and adjusted thereon so that it can slide freely along this rod and which, when the said loop has passed through the canvas, comes into contact with the latter and releases the snap by moving the sleeve along the guide rod so as to allow the mobile assembly to move from its rest position to its engaged position .
  • Such an apparatus is mainly intended for individuals interested in making carpets with pile knotted securely on a canvas, an appropriate choice of colors different from the pile threads allowing the production of ornamental patterns.
  • the snap is constituted by a pair of dogs residing in spring wires bent so as to have a straight part housed in grooves of the guide rod, one end at a right angle engaged in a hole in this rod , a control ramp deviating from the latter, and a locking spout, approximately perpendicular to said rod.
  • the control of this snap is provided by a sleeve freely adjusted around the guide rod and having two longitudinal slots to allow passage to the ramps and the spouts of the spring wires constituting the dogs of the snap.
  • the trigger resides in a tongue integral with the sleeve controlling the snap-fastening.
  • This tab crosses the head of the device and normally projects in front of it.
  • a spring housed in the handle tends to maintain the trigger in this position, in which the snap-fit spouts are moved away from the guide rod and lock the moving part of the device in the rest position.
  • the trigger comes into contact with it, which pulls the sleeve away from the camera head.
  • the front end of the slots of this sleeve then act on the control ramps of the dogs of the snap, which brings their beaks closer to the guide rod by freeing the moving part of the device.
  • the person using the latter therefore only has to push it against the canvas, then remove it to tie a Smyrna stitch on it.
  • This known device thus has the advantage of exempting the person who uses it from any other manipulation generating fatigue, or even cramps.
  • the present invention aims to create a device of the type considered, which has the same advantage as the known device, but with a snap free of the defect of this device.
  • the snap-fastening of the device comprises a ball that the sleeve integral with the trigger normally engages, on the one hand, in a part of a notch in the guide rod, and, on the other hand part, in a housing of the internal wall of the control handle, the sleeve moving the ball at the bottom of the notch of the guide rod and releasing it from said housing, when the trigger comes into contact with the canvas.
  • the snap-fastening thus defined is made up only of rigid members, capable of locking and releasing the mobile assembly of the apparatus without striking a shot millions of consecutive times.
  • This snap-fastening also has the advantage of operating with a relatively short stroke of the trigger.
  • the special embodiments defined by claim 2 have the advantage of providing a kinematic connection between the ball and the sleeve, which controls its movements, which is as simple to manufacture as to operate safely.
  • Those defined by claim 3 have the advantage that the part of the trigger projecting in front of the head of the device, in the rest position, is protected by the loop of the device. It can therefore be relatively fine, therefore compact, without being exposed to plastic deformation as a result of accidental snagging with foreign bodies.
  • the apparatus shown comprises a head 1 molded from synthetic material.
  • This head has a nose 2 and two cheeks 3 which extend on either side of the nose 2, so as to form housings 4, 5.
  • the end 6 of the nose 2 has a concave shape.
  • the head 1 is integral with a guide rod 7 and its nose carries a rigid loop 8, the latter two parts being preferably metallic.
  • the loop 8 has a longitudinal partition 9 in the middle of its width, which defines two compartments 10, 11.
  • the apparatus also has an assembly which can slide freely along the rod 7.
  • This assembly comprises a hollow handle 12 molded in one piece from synthetic material with a lifting beam 13.
  • the latter has two pins 14 to which metal hooks 15 are articulated , 16 arranged in different planes. The ends of these hooks are engaged in grooves (not shown) of the head 1. Each hook is guided in these grooves by a pair of pins 17, planted through the head 1.
  • the device includes a ball snap, which blocks the moving element 12 to 16 along the guide rod 7 as long as the partitioned loop 8 of the device enters the canvas, but which automatically releases this element 12 to 16, as soon as loop 8 is fully engaged in the canvas.
  • the head 1 has four holes 18 which pass through it parallel to the axis of the device and open into the bottom of the concavity of the end 6 of its nose 2.
  • Four branches 19 of equal length of a metal trigger 20 (Fig. 2) pass through the holes 18, in which they can slide freely.
  • the branches 19 constitute the legs of a "U” whose rounded base 21 is bent at right angles so as to surround the base of the loop 8 (Fig. 3).
  • the bases 21 are located at a certain distance from the bottom of the concavity of the end 6 of the nose 2.
  • the ends of the branches 19 are fixed to a flat ring 22 which, in the position of Figs. 1 and 4, rests against the head 1.
  • the guide rod 7 has, on the one hand, a diametrical slot 23, of length equal to the stroke of the moving element 12 to 16 of the apparatus, and, on the other hand, a notch 24 with cylindrical surface-shaped walls.
  • the handle 12 has an internal groove 25 and a shoulder 26. Its upper end is closed.
  • the apparatus further comprises a ball 27 partially housed in the notch 24 and a sleeve 28 adjusted on the guide rod 7 so as to be able to slide freely along the latter.
  • the sleeve 28 has a lateral opening 29, the edges of which surround the ball 27, and it is placed under the action of a return coil spring 30, which is housed in the handle 12, around the guide rod 7 , and bears against the shoulder 26 to push the sleeve 28 against the head 1.
  • a pin 31 is driven through the handle 12 and passes freely in the slot 23 of the guide rod 7.
  • the spring 30 moves the mobile assembly 12 to 16 away from the head 1. It presses the pin 31 against the rear end of the slot 23 and the ring 22 against the head 1 by means of the sleeve 28. In this position, the edges of the opening 29 of the sleeve 28 separate the ball 27 from the bottom of the notch 24 and keep it engaged in the groove 25, which locks the handle 12 to the guide rod 7 and therefore secures the moving part 12 to 16 and the head 1 between them.
  • the apparatus described is intended to tie Smyrna stitches on a canvas composed of pairs of warp and weft threads close together. These pairs of wires are regularly spaced from one another so as to define square openings between them. Three contiguous pairs of weft threads 32, 33, 34 are shown in section in Figs. 1 and 5. These threads 32, 33, 34 are naturally comprised between two neighboring pairs of warp threads (not shown). We find on the market canvas of this kind, with more or less fine warp and weft threads and more or less large openwork.
  • a strand of pile wire (not shown), of predetermined length and of size suitable for this canvas is folded in two on itself and engaged in the housings 4, 5 of the head of the apparatus while holding its ends one against the other between the thumb and the index finger.
  • the loop 8 is introduced between the two strands of the pair of weft threads 33 close together, then pushed fully through the canvas.
  • the two strands 33 are trapped at the bottom of the concavity of the end 6 of the nose 2 of the head 1.
  • This measurement makes perfect sense in the case of scantily or not primed canvas or in those where the primer has more or less disappeared; in particular it prevents one or the other of the strands 33 from being grasped and possibly sectioned by the hooks 15, 16 during the next time of the operation.
  • the hooks 15, 16 successively pass the ends of the pile thread engaged in the housings 4, 5 firstly through the openings comprised between the pairs of weft threads 32, 33 and 33, 34, then in the compartments 10, 11 of the loop 8, where these ends of the pile thread leave the hooks 15, 16.
  • the person using the apparatus according to the invention only has to remove it from the canvas to tie a Smyrna stitch.
  • the mobile assembly 12 to 16 moves back by removing the hooks 15, 16 from the loop 8 and bringing them back to their rest position shown in FIG. 1.
  • the loop 8 is still fully engaged in the canvas with the ends of the pile wire in its compartments 10, 11.
  • the loop 8 is released from the canvas by carrying with it the two ends of the pile wire, which are in its compartments 10, 11, between the two strands of weft threads 33.
  • the middle part of the pile thread which is wound around the two weft threads 33, it forms the actual knot.
  • the device described makes it possible to tie a Smyrna stitch simply by pushing it fully against the canvas, after having placed around its nose 2 a strand of hair yarn, previously cut to the desired length, then by removing it completely out of the canvas. Bundles of hair strands of different colors, lengths and sizes are available on the market.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

La présente invention a trait à un appareil à nouer des points de Smyrne dits noeuds de Ghiordès sur un canevas.The present invention relates to an apparatus for tying Smyrna stitches known as Ghiordes knots on a canvas.

L'appareil selon l'invention est plus précisément du type comprenant: une tête solidaire d'une tige de guidage et portant une boucle rigide; un équipage mobile le long de la tige de guidage entre une position de repos et une position engagée, cet équipage comprenant un manche de commande et deux crochets qui, en position de repos, se trouvent en retrait de la dite boucle, de part et d'autre de celle-ci, et qui, en position engagée, se croisent dans cette boucle; un encliquetage verrouillant normalement l'équipage mobile en position de repos, et un déclencheur qui est solidaire d'un manchon entourant la tige de guidage et ajusté sur celle-ci de façon à pouvoir coulisser librement le long de cette tige et qui, lorsque la dite boucle a traversé le canevas, entre en contact avec ce dernier et libère l'encliquetage en déplaçant le manchon le long de la tige de guidage de façon à permettre à l'équipage mobile de se déplacer de sa position de repos à sa position engagée.The apparatus according to the invention is more precisely of the type comprising: a head secured to a guide rod and carrying a rigid loop; a movable assembly along the guide rod between a rest position and an engaged position, this assembly comprising a control handle and two hooks which, in the rest position, are set back from said loop, on both sides 'other of it, and which, in the engaged position, cross in this loop; a snap normally locking the moving element in the rest position, and a trigger which is integral with a sleeve surrounding the guide rod and adjusted thereon so that it can slide freely along this rod and which, when the said loop has passed through the canvas, comes into contact with the latter and releases the snap by moving the sleeve along the guide rod so as to allow the mobile assembly to move from its rest position to its engaged position .

Un tel appareil est principalement destiné à des particuliers intéressés à la confection de tapis à poils noués solidement sur un canevas, un choix approprié de couleurs différentes des fils de poil permettant la réalisation de motifs ornementaux.Such an apparatus is mainly intended for individuals interested in making carpets with pile knotted securely on a canvas, an appropriate choice of colors different from the pile threads allowing the production of ornamental patterns.

Un appareil de ce type est connu (CH-A 471 269). Dans cet appareil, l'encliquetage est constitué par une paire de chiens résidant en des fils de ressort pliés de façon à présenter une partie rectiligne logée dans des rainures de la tige de guidage, une extrémité à angle droit engagée dans un trou de cette tige, une rampe de commande s'écartant de cette dernière, et un bec de blocage, approximativement perpendiculaire à la dite tige. La commande de cet encliquetage est assurée par un manchon ajusté librement autour de la tige de guidage et présentant deux fentes longitudinales pour livrer passage aux rampes et aux becs des fils de ressort constituant les chiens de l'encliquetage. Le déclencheur réside en une languette solidaire du manchon commandant l'encliquetage. Cette languette traverse la tête de l'appareil et fait normalement saillie au devant de celle-ci. Un ressort logé dans le manche tend à maintenir le déclencheur dans cette position, dans laquelle les becs de l'encliquetage sont écartés de la tige de guidage et verrouillent l'équipage mobile de l'appareil en position de repos. Lorsque la boucle de l'appareil est engagée dans le canevas, le déclencheur entre en contact avec celui-ci, ce qui écarte le manchon de la tête de l'appareil. L'extrémité antérieure des fentes de ce manchon agissent alors sur les rampes de commande des chiens de l'encliquetage, ce qui rapproche leurs becs de la tige de guidage en libérant l'équipage mobile de l'appareil. La personne utilisant ce dernier n'a donc qu'à le pousser contre le canevas, puis à l'en retirer pour nouer un point de Smyrne sur celui-ci. Cet appareil connu a ainsi l'avantage de dispenser la personne qui l'utilise de toute autre manipulation génératrice de fatigue, voire de crampes.An apparatus of this type is known (CH-A 471 269). In this device, the snap is constituted by a pair of dogs residing in spring wires bent so as to have a straight part housed in grooves of the guide rod, one end at a right angle engaged in a hole in this rod , a control ramp deviating from the latter, and a locking spout, approximately perpendicular to said rod. The control of this snap is provided by a sleeve freely adjusted around the guide rod and having two longitudinal slots to allow passage to the ramps and the spouts of the spring wires constituting the dogs of the snap. The trigger resides in a tongue integral with the sleeve controlling the snap-fastening. This tab crosses the head of the device and normally projects in front of it. A spring housed in the handle tends to maintain the trigger in this position, in which the snap-fit spouts are moved away from the guide rod and lock the moving part of the device in the rest position. When the camera loop is engaged in the canvas, the trigger comes into contact with it, which pulls the sleeve away from the camera head. The front end of the slots of this sleeve then act on the control ramps of the dogs of the snap, which brings their beaks closer to the guide rod by freeing the moving part of the device. The person using the latter therefore only has to push it against the canvas, then remove it to tie a Smyrna stitch on it. This known device thus has the advantage of exempting the person who uses it from any other manipulation generating fatigue, or even cramps.

Indépendamment du fait que cet appareil connu nécessitait une course démesurément longue du déclencheur, il s'est malheureusement révélé totalement inefficace à l'usage. En effet, un appareil de ce type doit absolument permettre de nouer quelques dizaines de milliers de points, voire quelques centaines de milliers. Or, bien avant d'atteindre ces nombres, les ressorts constituant les chiens de l'encliquetage de l'appareil connu étaient rendus et déformés au point de ne plus assurer convenablement leurs deux fonctions: verrouillage et libération de l'équipage mobile de l'appareil.Regardless of the fact that this known device required an inordinately long stroke of the shutter, it unfortunately proved to be totally ineffective in use. Indeed, a device of this type must absolutely make it possible to tie a few tens of thousands of points, or even a few hundred thousand. However, well before reaching these numbers, the springs constituting the dogs of the snap-fastening of the known device were rendered and deformed to the point of no longer adequately performing their two functions: locking and releasing the moving part of the apparatus.

La présente invention vise à créer un appareil du type considéré, qui présente le même avantage que l'appareil connu, mais avec un encliquetage exempt du défaut de cet appareil.The present invention aims to create a device of the type considered, which has the same advantage as the known device, but with a snap free of the defect of this device.

A cet effet, l'encliquetage de l'appareil selon l'invention comprend une bille que le manchon solidaire du déclencheur engage normalement, d'une part, dans une partie d'une encoche de la tige de guidage, et, d'autre part, dans un logement de la paroi interne du manche de commande, le manchon déplaçant la bille au fond de l'encoche de la tige de guidage et la dégageant du dit logement, lorsque le déclencheur entre en contact avec le canevas.To this end, the snap-fastening of the device according to the invention comprises a ball that the sleeve integral with the trigger normally engages, on the one hand, in a part of a notch in the guide rod, and, on the other hand part, in a housing of the internal wall of the control handle, the sleeve moving the ball at the bottom of the notch of the guide rod and releasing it from said housing, when the trigger comes into contact with the canvas.

On remarquera que l'encliquetage ainsi défini n'est composé que d'organes rigides, capables de verrouiller et de libérer l'équipage mobile de l'appareil sans coup férir des millions de fois consécutives. Cet encliquetage a, en outre, l'avantage de fonctionner avec une course relativement faible du déclencheur.It will be noted that the snap-fastening thus defined is made up only of rigid members, capable of locking and releasing the mobile assembly of the apparatus without striking a shot millions of consecutive times. This snap-fastening also has the advantage of operating with a relatively short stroke of the trigger.

Les formes spéciales d'exécution définies par la revendication 2 ont l'avantage de réaliser une liaison cinématique entre la bille et le manchon, qui en commande les déplacements, qui est aussi simple à fabriquer que de fonctionnement sûr.The special embodiments defined by claim 2 have the advantage of providing a kinematic connection between the ball and the sleeve, which controls its movements, which is as simple to manufacture as to operate safely.

Celles définies par la revendication 3 ont l'avantage que la partie du déclencheur faisant saillie au devant de la tête de l'appareil, en position de repos, est protégée par la boucle de l'appareil. Elle peut donc être relativement fine, par conséquent peu encombrants, sans pour autant être exposée à des déformations plastiques par suite d'accrochages accidentels avec des corps étrangers.Those defined by claim 3 have the advantage that the part of the trigger projecting in front of the head of the device, in the rest position, is protected by the loop of the device. It can therefore be relatively fine, therefore compact, without being exposed to plastic deformation as a result of accidental snagging with foreign bodies.

Une forme d'exécution de l'appareil selon l'invention est représentée schématiquement et à simple titre d'exemple au dessin, dans lequel:

  • la Fig. 1 en est une vue de face, avec certaines parties en coupe, l'appareil étant en position de repos;
  • la Fig. 2 est une vue en perspective d'une partie de la Fig. 1;
  • la Fig. 3 est une coupe selon la ligne lll-lll de la Fig. 4;
  • la Fig. 4 est une vue de profil, partiellement en coupe, d'une autre partie de la Fig. 1, et
  • la Fig. 5 est une vue partielle de la Fig. 1, dans une position au cours du fonctionnement.
An embodiment of the apparatus according to the invention is shown schematically and simply by way of example in the drawing, in which:
  • Fig. 1 is a front view, with certain parts in section, the apparatus being in the rest position;
  • Fig. 2 is a perspective view of part of FIG. 1;
  • Fig. 3 is a section along the line III-III of FIG. 4;
  • Fig. 4 is a side view, partially in section, of another part of FIG. 1, and
  • Fig. 5 is a partial view of FIG. 1, in a position during operation.

L'appareil représenté comprend une tête 1 moulée en matière synthétique. Cette tête présente un nez 2 et deux joues 3 qui s'étendent de part et d'autre du nez 2, de façon à former des logements 4, 5. L'extrémité 6 du nez 2 a une forme concave.The apparatus shown comprises a head 1 molded from synthetic material. This head has a nose 2 and two cheeks 3 which extend on either side of the nose 2, so as to form housings 4, 5. The end 6 of the nose 2 has a concave shape.

La tête 1 est solidaire d'une tige de guidage 7 et son nez porte une boucle rigide 8, ces deux dernières pièces étant de préférence métalliques. Comme on le voit à la Fig. 4, la boucle 8 présente une cloison longitudinale 9 au milieu de sa largeur, qui définit deux compartiments 10, 11.The head 1 is integral with a guide rod 7 and its nose carries a rigid loop 8, the latter two parts being preferably metallic. As seen in Fig. 4, the loop 8 has a longitudinal partition 9 in the middle of its width, which defines two compartments 10, 11.

L'appareil présente encore un équipage qui peut coulisser librement le long de la tige 7. Cet équipage comprend un manche creux 12 moulé en une pièce en matière synthétique avec un palonnier 13. Ce dernier présente deux tétons 14 auxquels sont articulés des crochets métalliques 15, 16 disposés dans des plans différents. Les extrémités de ces crochets sont engagées dans des rainures (non représentées) de la tête 1. Chaque crochet est guidé dans ces rainures par une paire de goupilles 17, plantées à travers la tête 1.The apparatus also has an assembly which can slide freely along the rod 7. This assembly comprises a hollow handle 12 molded in one piece from synthetic material with a lifting beam 13. The latter has two pins 14 to which metal hooks 15 are articulated , 16 arranged in different planes. The ends of these hooks are engaged in grooves (not shown) of the head 1. Each hook is guided in these grooves by a pair of pins 17, planted through the head 1.

Enfin, l'appareil comprend un encliquetage à bille, qui bloque l'équipage mobile 12 à 16 le long de la tige de guidage 7 aussi longtemps que la boucle cloisonnée 8 de l'appareil pénètre dans le canevas, mais qui libère automatiquement cet équipage 12 à 16, dès que la boucle 8 est complètement engagée dans le canevas.Finally, the device includes a ball snap, which blocks the moving element 12 to 16 along the guide rod 7 as long as the partitioned loop 8 of the device enters the canvas, but which automatically releases this element 12 to 16, as soon as loop 8 is fully engaged in the canvas.

Pour monter l'encliquetage à bille sur l'appareil selon l'invention, la tête 1 présente quatre forures 18 qui la traversent parallèlement à l'axe de l'appareil et débouchent dans le fond de la concavité de l'extrémité 6 de son nez 2. Quatre branches 19 de longueurs égales d'un déclencheur métallique 20 (Fig. 2) passent à travers les forures 18, dans lesquelles elles peuvent coulisser librement. Deux à deux, les branches 19 constituent les jambages d'un "U" dont la base arrondie 21 est pliée à l'équerre de façon à entourer la base de la boucle 8 (Fig. 3). Au repos (Fig. 1 et 4), les bases 21 se trouvent à une certaine distance du fond de la concavité de l'extrémité 6 du nez 2. Les extrémités des branches 19 sont fixées à un anneau plat 22 qui, dans la position des Fig. 1 et 4, repose contre la tête 1.To mount the ball catch on the device according to the invention, the head 1 has four holes 18 which pass through it parallel to the axis of the device and open into the bottom of the concavity of the end 6 of its nose 2. Four branches 19 of equal length of a metal trigger 20 (Fig. 2) pass through the holes 18, in which they can slide freely. Two by two, the branches 19 constitute the legs of a "U" whose rounded base 21 is bent at right angles so as to surround the base of the loop 8 (Fig. 3). At rest (Fig. 1 and 4), the bases 21 are located at a certain distance from the bottom of the concavity of the end 6 of the nose 2. The ends of the branches 19 are fixed to a flat ring 22 which, in the position of Figs. 1 and 4, rests against the head 1.

De son côté, la tige de guidage 7 présente, d'une part, une fente diamétrale 23, de longueur égale à la course de l'équipage mobile 12 à 16 de l'appareil, et, d'autre part, une encoche 24 aux parois en forme de surface cylindrique. Quant au manche 12, il présente une gorge interne 25 et un épaulement 26. Son extrémité supérieure est fermée.For its part, the guide rod 7 has, on the one hand, a diametrical slot 23, of length equal to the stroke of the moving element 12 to 16 of the apparatus, and, on the other hand, a notch 24 with cylindrical surface-shaped walls. As for the handle 12, it has an internal groove 25 and a shoulder 26. Its upper end is closed.

L'appareil comprend encore une bille 27 logée en partie dans l'encoche 24 et un manchon 28 ajusté sur la tige de guidage 7 de façon à pouvoir coulisser librement le long de celle-ci. Le manchon 28 présente une ouverture latérale 29, dont les bords ceinturent la bille 27, et il est placé sous l'action d'un ressort à boudin de rappel 30, qui est logé dans le manche 12, autour de la tige de guidage 7, et prend appui contre l'épaulement 26 pour pousser le manchon 28 contre la tête 1. Une goupille 31 est, enfin, chassée à travers le manche 12 et passe librement dans la fente 23 de la tige de guidage 7.The apparatus further comprises a ball 27 partially housed in the notch 24 and a sleeve 28 adjusted on the guide rod 7 so as to be able to slide freely along the latter. The sleeve 28 has a lateral opening 29, the edges of which surround the ball 27, and it is placed under the action of a return coil spring 30, which is housed in the handle 12, around the guide rod 7 , and bears against the shoulder 26 to push the sleeve 28 against the head 1. Finally, a pin 31 is driven through the handle 12 and passes freely in the slot 23 of the guide rod 7.

Dans la position de repos de la Fig. 1, le ressort 30 éloigne l'équipage mobile 12 à 16 de la tête 1. Il fait appuyer la goupille 31 contre l'extrémité postérieure de la fente 23 et l'anneau 22 contre la tête 1 par l'intermédiaire du manchon 28. Dans cette position, les bords de l'ouverture 29 du manchon 28 éloignent la bille 27 du fond de l'encoche 24 et la maintiennent engagée dans la gorge 25, ce qui verrouille le manche 12 à la tige de guidage 7 et solidarise par conséquent l'équipage mobile 12 à 16 et la tête 1 entre eux.In the rest position of FIG. 1, the spring 30 moves the mobile assembly 12 to 16 away from the head 1. It presses the pin 31 against the rear end of the slot 23 and the ring 22 against the head 1 by means of the sleeve 28. In this position, the edges of the opening 29 of the sleeve 28 separate the ball 27 from the bottom of the notch 24 and keep it engaged in the groove 25, which locks the handle 12 to the guide rod 7 and therefore secures the moving part 12 to 16 and the head 1 between them.

L'appareil décrit est destiné à nouer des points de Smyrne sur un canevas composé de paires de fils de chaîne et de trame rapprochés. Ces paires de fils sont régulièrement espacées les unes des autres de façon à définir entre elles des ajours carrés. Trois paires contiguës de fils de trame 32, 33, 34 sont représentées en coupe dans les Fig. 1 et 5. Ces fils 32, 33, 34 sont naturellement compris entre deux paires voisines de fils de chaîne (non représentés). On trouve sur le marché des canevas de ce genre, avec des fils de chaîne et de trame plus ou moins fins et des ajours plus ou moins gros.The apparatus described is intended to tie Smyrna stitches on a canvas composed of pairs of warp and weft threads close together. These pairs of wires are regularly spaced from one another so as to define square openings between them. Three contiguous pairs of weft threads 32, 33, 34 are shown in section in Figs. 1 and 5. These threads 32, 33, 34 are naturally comprised between two neighboring pairs of warp threads (not shown). We find on the market canvas of this kind, with more or less fine warp and weft threads and more or less large openwork.

Pour nouer un point de Smyrne sur un canevas déterminé du type décrit à l'aide de l'appareil selon l'invention, un brin de fil de poil (non représenté), de longueur prédéterminée et de grosseur adaptée à ce canevas est plié en deux sur lui-même et engagé dans les logements 4, 5 de la tête de l'appareil en tenant ses extrémités l'une contre l'autre entre le pouce et l'index.To tie a Smyrna stitch on a determined canvas of the type described using the apparatus according to the invention, a strand of pile wire (not shown), of predetermined length and of size suitable for this canvas is folded in two on itself and engaged in the housings 4, 5 of the head of the apparatus while holding its ends one against the other between the thumb and the index finger.

Dans un premier temps, la boucle 8 est introduite entre les deux brins de la paire de fils de trame 33 rapprochés, puis poussée à fond à travers le canevas. Dans cette position, représentée à la Fig. 5, les deux brins 33 sont emprisonnés au fond de la concavité de l'extrémité 6 du nez 2 de la tête 1. Cette mesure prend tout son sens dans le cas des canevas peu ou pas apprêtés ou dans ceux où l'apprêt a plus ou moins disparu; elle évite notamment que l'un ou l'autre des brins 33 ne soit saisi et éventuellement sectionné par les crochets 15, 16 lors du temps suivant de la manoeuvre.Initially, the loop 8 is introduced between the two strands of the pair of weft threads 33 close together, then pushed fully through the canvas. In this position, shown in FIG. 5, the two strands 33 are trapped at the bottom of the concavity of the end 6 of the nose 2 of the head 1. This measurement makes perfect sense in the case of scantily or not primed canvas or in those where the primer has more or less disappeared; in particular it prevents one or the other of the strands 33 from being grasped and possibly sectioned by the hooks 15, 16 during the next time of the operation.

Lorsque l'appareil est ainsi poussé par le manche 12 de façon à engager sa boucle 8 entre les brins de fils de trame 33, la bille 27, coincée dans la gorge 25, oblige la tête 1 et par conséquent la boucle 8 à suivre la poussée exercée sur le manche 12.When the device is thus pushed by the handle 12 so as to engage its loop 8 between the strands of weft son 33, the ball 27, wedged in the groove 25, forces the head 1 and consequently the loop 8 to follow the thrust on the handle 12.

Au moment où la boucle 8 va être engagée entièrement dans le canevas, les bases 21 du déclencheur 20 entrent en contact avec les brins de fils de trame 33 du canevas. Ces bases 21 sont alors repoussées contre le fond de la concavité de l'extrémité 6 du nez 2, comme le montre la Fig. 5. Conséquemment, les branches 19 éloignent l'anneau 22 de la tête 1 tout en repoussant le manchon 28 contre l'action du ressort 30. Au cours de ce déplacement du manchon 28, son ouverture 29 entraîne la bille 27 au fond de l'encoche 24 en la faisant sortir de la gorge 25, ce qui a pour effet de libérer le manche 12 et par conséquent l'équipage mobile 12 à 16 de la tige de guidage 7, donc de la tête 1. Cet équipage 12 à 16 peut alors se déplacer contre la tête 1. Cette avance se poursuit jusqu'à ce que la goupille 31 bute contre l'extrémité antérieure de la fente 23, c'est-à-dire jusqu'au moment où l'appareil est complètement engagé dans le canevas.When the loop 8 is going to be fully engaged in the canvas, the bases 21 of the trigger 20 come into contact with the weft strands 33 of the canvas. These bases 21 are then pushed against the bottom of the concavity of the end 6 of the nose 2, as shown in FIG. 5. Consequently, the branches 19 move the ring 22 away from the head 1 while pushing the sleeve 28 against the action of the spring 30. During this movement of the sleeve 28, its opening 29 drives the ball 27 to the bottom of the 'notch 24 making it come out of the groove 25, which has the effect of releasing the handle 12 and therefore the movable assembly 12 to 16 of the guide rod 7, therefore of the head 1. This assembly 12 to 16 can then move against the head 1. This advance continues until the pin 31 abuts against the anterior end of the slot 23, that is to say until the device is fully engaged in the canvas.

Lorsque le manche 12 avance le long de la tige 7, les crochets 15, 16 font passer successivement les extrémités du fil de poil engagé dans les logements 4, 5 d'abord à travers les ajours compris entre les paires de fils de trame 32, 33 et 33, 34, puis dans les compartiments 10, 11 de la boucle 8, où ces extrémités du fil de poil quittent les crochets 15, 16.When the handle 12 advances along the rod 7, the hooks 15, 16 successively pass the ends of the pile thread engaged in the housings 4, 5 firstly through the openings comprised between the pairs of weft threads 32, 33 and 33, 34, then in the compartments 10, 11 of the loop 8, where these ends of the pile thread leave the hooks 15, 16.

A ce stade de la manoeuvre, la personne utilisant l'appareil selon l'invention n'a plus qu'à le retirer du canevas pour nouer un point de Smyrne. Au cours d'un premier temps de ce mouvement de retrait, l'équipage mobile 12 à 16 recule en retirant les crochets 15, 16 de la boucle 8 et en les ramenant dans leur position de repos représentée à la Fig. 1. A l'issue de ce premier temps, la boucle 8 est encore engagée entièrement dans le canevas avec les extrémités du fil de poil dans ses compartiments 10, 11.At this stage of the maneuver, the person using the apparatus according to the invention only has to remove it from the canvas to tie a Smyrna stitch. During a first stage of this withdrawal movement, the mobile assembly 12 to 16 moves back by removing the hooks 15, 16 from the loop 8 and bringing them back to their rest position shown in FIG. 1. At the end of this first step, the loop 8 is still fully engaged in the canvas with the ends of the pile wire in its compartments 10, 11.

Au cours d'un deuxième temps du mouvement de retrait de l'appareil, la boucle 8 est dégagée du canevas en entraînant avec elle les deux extrémités du fil de poil, qui se trouvent dans ses compartiments 10, 11, entre les deux brins de fils de trame 33. Il en résulte le noeud de Ghiordès ou point de Smyrne, dans lequel les extrémités du fil de poil, noué comme indiqué autour des fils 33 du canevas, vont constituer le poil du tapis, quand le nouage des points sera terminé sur le canevas considéré. Quant à la partie médiane du fil de poil, qui est enroulée autour des deux fils de trame 33, elle forme le noeud proprement dit.During a second step of the movement of withdrawal of the device, the loop 8 is released from the canvas by carrying with it the two ends of the pile wire, which are in its compartments 10, 11, between the two strands of weft threads 33. This results in the knot of Ghiordès or Smyrna stitch, in which the ends of the pile thread, knotted as shown around the threads 33 of the canvas, will constitute the pile of the carpet, when the knotting of the stitches is finished on the canvas considered. As for the middle part of the pile thread, which is wound around the two weft threads 33, it forms the actual knot.

En résumé, l'appareil décrit permet de nouer un point de Smyrne simplement en le poussant à fond contre le canevas, après avoir placé autour de son nez 2 un brin de fil de poil, préalablement coupé à la longueur voulue, puis en le retirant complètement du canevas. Des paquetages de brins de fils de poil de différentes couleurs, longueurs et grosseurs sont en vente sur le marché.In summary, the device described makes it possible to tie a Smyrna stitch simply by pushing it fully against the canvas, after having placed around its nose 2 a strand of hair yarn, previously cut to the desired length, then by removing it completely out of the canvas. Bundles of hair strands of different colors, lengths and sizes are available on the market.

Lorsque l'appareil selon l'invention est retiré du canevas, le ressort 30 le ramène naturellement dans la position de repos de la Fig. 1.When the apparatus according to the invention is removed from the canvas, the spring 30 naturally brings it back to the rest position of FIG. 1.

Claims (3)

1. Device for knotting Smyrna stitches called Ghiordès knots on canvas, comprising: a head (1) fixed to a guiding rod (7) and carrying a rigid buckle (8); a unit (12-16) movable along said guiding rod between a rest position and an engaged position, said unit comprising a control handle (12) and two hooks (15, 16) which, in rest position, are behind said buckle (8), on either side thereof, and which, in engaged position, cross themselves in said buckle; a ratchet mechanism (24-29) normally locking the movable unit (12-16) in rest position, and a releaser (20) which is fixed to a sleeve (28) surrounding the guiding rod (7) and adjusted thereon so as to be able to freely slide along that rod (7), and which, when said buckle (8) has passed across the canvas, comes in contact with the latter and releases the ratchet mechanism by shifting the sleeve (28) along the guiding rod (7) so as to allow the movable unit to move from its rest position to its engaged position, characterized in that said ratchet mechanism comprises a ball (27) which the sleeve (28), fixed to the releaser (20), normally sets, on the one hand, in a part of a cutout (24) of the guiding rod (7), and, on the other hand, in a lodging (25) of the inner wall of the control handle (12), said sleeve (28) causing the ball (27) to move on the bottom of cutout (24) of the guiding rod (7) and releasing it from the lodging (25), when the releaser (20) comes in contact with the canvas (32, 33, 34).
2. Device according to claim 1, characterized in that said sleeve (28) is provided with a circular, lateral opening (29), the edges of which encompass the ball (27) so as to drive it during its displacements along the guiding rod (7).
3. Device according to claim 2, characterized in that the releaser (20) comprises four arms (19) set in bores (18) of said head (1) and extending through the latter, these arms (19) forming paarwise the legs of a "U" the rounded basis of which, are bent at 90° and surround the basis of said buckle (8), the ends of said arms being fixed to a ring (22) bearing against said sleeve (28).
EP19860810609 1986-05-16 1986-12-22 Device for knotting Smyrna stitches called Ghiordès knots on canvas Expired - Lifetime EP0246389B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2008/86 1986-05-16
CH200886A CH665857A5 (en) 1986-05-16 1986-05-16 APPARATUS FOR KNOTTING POINTS OF SMYRNE SAID KNOTS OF GHIORDES ON A CANVAS.

Publications (2)

Publication Number Publication Date
EP0246389A1 EP0246389A1 (en) 1987-11-25
EP0246389B1 true EP0246389B1 (en) 1990-08-22

Family

ID=4223748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860810609 Expired - Lifetime EP0246389B1 (en) 1986-05-16 1986-12-22 Device for knotting Smyrna stitches called Ghiordès knots on canvas

Country Status (3)

Country Link
EP (1) EP0246389B1 (en)
CH (1) CH665857A5 (en)
DE (1) DE3673645D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2040G2 (en) * 2001-12-20 2003-05-31 Валерий БАЧЕВИЧ Process for knotting in the carpet weaving and device for realization thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH471269A (en) * 1967-03-31 1969-04-15 Jeandupeux Pellaton Madeleine Apparatus for making carpet knots

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2040G2 (en) * 2001-12-20 2003-05-31 Валерий БАЧЕВИЧ Process for knotting in the carpet weaving and device for realization thereof

Also Published As

Publication number Publication date
DE3673645D1 (en) 1990-09-27
EP0246389A1 (en) 1987-11-25
CH665857A5 (en) 1988-06-15

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